WO2024011819A1

WO2024011819A1 - Cleaning machine capable of being safely used at multiple angles

Info

Publication number: WO2024011819A1
Application number: PCT/CN2022/134927
Authority: WO
Inventors: 刘鸣; 严庆玲; 陈兵
Original assignee: 莱克电气绿能科技(苏州)有限公司
Priority date: 2022-07-14
Filing date: 2022-11-29
Publication date: 2024-01-18
Also published as: CN117426715A

Abstract

A cleaning machine capable of being safely used at multiple angles, comprising a machine body housing (100), a suction nozzle device (200), a recovery device (300), and a water-gas separation device (500), wherein the suction nozzle device (200) is arranged at the front end of the machine body housing (100), the water-gas separation device (500) is arranged inside the machine body housing (100), and the recovery device (300) is in fluid communication with the water-gas separation device (500) and the suction nozzle device (200), respectively. The recovery device (300) comprises a dirt storage tank (301), an air inlet pipe (302), an air outlet pipe (303), and a drain plug (317), wherein the air inlet pipe (302) and the air outlet pipe (303) are obliquely arranged in the dirt storage tank (301), a dirt storage cavity (304) is formed inside the dirt storage tank (301), and an outlet of the air inlet pipe (302) and an inlet of the air outlet pipe (303) are both located in the middle area of the dirt storage cavity (304) and are spaced apart from the inner wall of the dirt storage tank (301), so that the dirt storage tank (301) has a certain dirt storage volume at any inclined angle, and therefore, the cleaning machine can be safely used at multiple angles.

Description

Cleaning machine that is safe to use from multiple angles

Technical field

The present invention relates to cleaning equipment, in particular to a cleaning machine that is safe to use at multiple angles.

Background technique

The handheld cleaning machines currently on the market are mainly designed for cleaning horizontal surfaces. When tilted or turned over, the dirty liquid in the sewage tank will flow back, causing water to enter the motor and water spraying from the suction nozzle, which limits its use. Application in scenarios such as slope and top surface cleaning.

Contents of the invention

The invention provides a cleaning machine that is safe to use at multiple angles. By improving the design of the dirt storage structure in the cleaning machine, the cleaning machine can be used safely at multiple angles.

The invention provides a cleaning machine that is safe to use from multiple angles. The cleaning machine includes a body shell, a suction nozzle device, a recovery device and a water and gas separation device. The suction nozzle device is used to absorb dirt and surrounding air from the surface to be cleaned. , causing the dirt and the air to form a fluid and directing the fluid to the recovery device, the dirt includes liquid and solid, the recovery device is used to intercept the solids and at least part of the liquid in the fluid, The water and gas separation device is used to separate liquid and gas from the fluid intercepted and processed by the recovery device;

The suction nozzle device is disposed at the front end of the body shell, the water vapor separation device is disposed inside the body casing, and the recovery device is in fluid communication with the water vapor separation device and the suction nozzle device respectively, so The recovery device is in fluid communication with the suction nozzle device through a fluid inflow channel, and the recovery device is in fluid communication with the water vapor separation device through a fluid outflow channel;

The recovery device includes a sewage storage tank, an air inlet duct and an air outlet duct. A sewage storage cavity is formed inside the sewage storage tank. The sewage storage tank is provided with an air inlet and an air outlet of the sewage storage tank. The air inlet pipe and the air outlet pipe are arranged in the dirt storage chamber; the inlet of the air inlet pipe is connected with the external fluid through the air inlet of the dirt storage tank, and is used to guide the external fluid to the dirt storage cavity. So that at least part of the liquid in the fluid is deposited in the dirt storage chamber; the outlet of the air outlet pipe is connected to the outside of the recovery device through the air outlet of the dirt storage tank, and is used to drain the water in the dirt storage chamber. The separated fluid is guided to the outside of the recovery device; the outlet of the air inlet pipe and the inlet of the air outlet pipe are both located in the middle area of the dirt storage chamber and maintain a distance from the inner wall of the dirt storage tank.

Implementing the technical solution of the present invention has the following beneficial effects:

By arranging the air inlet duct and the air outlet duct obliquely in the sewage storage tank, the outlet of the air inlet duct and the entrance of the air outlet duct are located in the middle area of the sewage storage cavity and keep a distance from the inner wall of the sewage storage tank, so that the sewage storage tank It has a certain dirt storage capacity at any tilt angle. When the cleaning machine is tilted or turned over, the liquid in the sewage storage tank will not easily enter the air inlet and outlet ducts, avoiding water inlet from the motor and water spray from the suction nozzle, and expanding the use angle of the cleaning machine.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present application.

Description of drawings

The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the description to explain the principles of the present application, and do not constitute undue limitations on the present application.

Figure 1 is a schematic diagram of the overall structure of the cleaning machine;

Figure 2 is a schematic cross-sectional structural diagram of the cleaning machine;

Figure 3 is a schematic structural diagram of the body shell;

Figure 4 is a schematic diagram of the flow path of the air flow from the suction nozzle device to the recovery device;

Figure 5 is a schematic diagram of the flow path of the air flow from the recovery device to the water and gas separation device;

Figure 6 is a schematic structural diagram of the combination of the water and gas separation device and the diversion device;

Figure 7 is a cross-sectional view of the combined structure of the water and gas separation device and the flow guide device;

Figure 8 is a cross-sectional view of the water and gas separation device;

Figure 9 is a schematic structural diagram of the isolation member;

Figure 10 is a schematic structural diagram of the lower housing of the water and gas separation device;

Figure 11 is a schematic structural diagram of the upper housing of the water and gas separation device;

Figure 12 is a schematic structural diagram of the wind blocking mechanism;

Figure 13 is a schematic structural diagram of the bottom of the water and gas separation device;

Figure 14 is a schematic structural diagram of the flow guide device;

Figure 15 is a schematic cross-sectional structural diagram of the flow guide device;

Figure 16 is a schematic structural diagram of the bottom surface of the flow guide device;

Figure 17 is a schematic structural diagram of the recovery device;

Figure 18 is a schematic cross-sectional structural diagram of the recovery device;

Figure 19 is a partial structural diagram of a recovery device;

Figure 20 is a partial structural diagram of a recovery device;

Figure 21 is a partial structural diagram of a recovery device;

Figures 22-23 are schematic diagrams of the distance between the outlet of the water inlet pipe and the inner wall of the sewage storage tank;

Figures 24 and 25 are schematic diagrams of the distance between the inlet of the water outlet pipe and the inner wall of the sewage storage tank;

Figure 26 is a schematic cross-sectional structural diagram of the cleaning machine;

Figure 27 is a cross-sectional view taken along the broken line S-S in Figure 26;

Figure 28 is a schematic diagram of the cleaning machine in its upright use state;

Figure 29 is a schematic diagram of the horizontal use state of the cleaning machine;

Figure 30 is a schematic diagram of the cleaning machine being used upside down.

Figure 31 is a schematic structural diagram of the suction nozzle device;

Figure 32 is a schematic cross-sectional structural view of the suction nozzle device;

Figure 33 is a partial cross-sectional view of the cleaning machine;

Figure 34 is a schematic cross-sectional structural diagram of the cleaning machine;

Figures 35-36 are schematic structural diagrams of the fluid delivery device;

Figure 37 is a schematic diagram of the internal structure of the fluid delivery device;

Figure 38 is a schematic structural diagram of the bottom plate of the liquid storage tank;

Figure 39 is a cross-sectional view B-B in Figure 38;

Figure 40 is a cross-sectional view A-A in Figure 38;

Figure 41 is a schematic cross-sectional structural view of the fluid delivery device;

Figure 42 is a schematic structural diagram of the water filling plug.

Reference signs in the figure:

100. Body shell, 101. Handle, 102. Fluid delivery device docking part, 103. Recovery device docking part, 104 - Shell air outlet, 105. Control button, 106. Power cord,

200. Nozzle device, 201. Nozzle cover, 202. Nozzle bottom plate, 203. Roller brush, 204. Air guide duct, 205. Suction port, 206. First air guide duct, 207. Second air guide duct , 208. Suction nozzle channel, 209. Liquid storage chamber, 210. Liquid storage tube, 213. Convex ribs, 214. Roller brush mouth, 215. Brush roller, 216. Scraping element, 217. Brush roller drive motor,

300. Recovery device, 301. Sewage storage tank, 302. Air inlet duct, 303. Air outlet duct, 304. Sewage storage cavity, 305. Sewage storage tank air inlet, 306. Sewage storage tank air outlet, 307. Wind barrier , 308. First isolation part, 309. Second isolation part, 310. Windshield mechanism, 311. Windshield seat, 312. Open mouth, 313. Windshield, 314. Movable part, 315. Fixed part, 316. Sewage discharge Mouth, 317, drain plug, 318, first left endpoint, 319, first right endpoint, 320, first top endpoint, 321, first bottom endpoint, 322, first front endpoint, 323, first rear endpoint Bottom endpoint, 324, second left endpoint, 325, second right endpoint, 326, second top endpoint, 327, second bottom endpoint, 328, second front endpoint, 329, second rear endpoint, 330 , snap component, 331, receiving component, 332, snap, 333, disassembly button, 334, overlapping component, 335, support component,

400. Diversion device, 401. Air inlet channel, 402. Return air channel, 403. First return water pipe, 404. Second return water pipe, 405. First water receiving hole, 406. Second water receiving hole, 407. Diversion base, 408, partition, 409, air guide, 410, first base outlet, 411, second base outlet, 412, avoidance part, 413, joint cover, 414, air inlet joint, 415, Return air outlet joint, 416, first connecting part, 417, second connecting part, 418, accommodating part,

500. Water and gas separation device, 501. Housing, 502. Fan assembly, 503. Isolator, 504. Upper housing, 505. Lower housing, 506. Isolation cavity, 507. Housing air outlet, 508. Wind shield Mechanism, 509, separation chamber, 510, casing air inlet, 511, return hole, 512, impeller, 513, impeller drive motor, 514, output shaft, 515, first wind deflector, 516, second wind deflector , 517. Bracket, 518. Air outlet, 519. Outer edge of the first wind deflector, 520. Inner edge of the first wind deflector, 521. First wind deflector skirt, 522. Outer edge of the second wind deflector, 523 , inner edge of the second windshield, 524, second windshield skirt, 525, inner frame, 526, outer frame, 527, isolation blade, 528, blade leading edge, 529, blade trailing edge, 530, blade upper edge , 531. Lower edge of blade, 532. Water guide plate, 533. Water retaining plate, 534. Water retaining space, 535. Impeller chamber, 536. Guide plate, 537. Guide groove, 538. Flow passage, 539. Impeller air inlet, 540, impeller air outlet, 541, motor compartment, 542, upper motor compartment shell, 543, lower motor compartment shell, 544, air distribution plate, 545, isolator shaft hole, 546, impeller shaft hole, 547. Impeller insert, 548. Seal ring, 549. Bearing,

600. Fluid conveying device, 601. Nozzle, 602. Liquid storage tank, 603. Pump, 604. Operating handle, 605. First diversion channel, 606. Second diversion channel, 607. Liquid storage chamber, 608. Pump Shell, 609, joystick, 610, pump inlet, 611, pump outlet, 612, water inlet pipe, 613, liquid inlet channel, 614, first water outlet pipe, 615, second water outlet pipe, 616, liquid outlet channel, 617, Gap, 619, water filling plug, 620, air inlet valve, 621, liquid storage tank cover, 622, operating port, 623, holding part, 625, nozzle mounting base, 626, receiving component, 627, hook component, 628 , mounting base, 629, elastic member, 630, release button, 631, load-bearing plate, 632, base, 633, push rod through hole, 634, base through hole, 635, contact shaft, 636, connecting end, 637, operation End, 638, positioning column.

Detailed ways

In order to enable ordinary people in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the appended claims.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the invention belongs. The terminology used herein in the description of the invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

This embodiment provides a cleaning machine. Please refer to Figures 1 and 2. The cleaning machine includes a body shell 100, a fluid transport device 600, a suction nozzle device 200, a recovery device 300 and a water and gas separation device 500. The suction nozzle device 200 is provided with At the front end of the body casing 100, the recovery device 300 is set at the rear end of the body casing 100, the water vapor separation device 500 is set inside the body casing 100, the fluid transport device 600 is set at the top of the body casing 100, the recovery device 300 passes the fluid inflow The channel is in fluid communication with the suction nozzle device 200, and the recovery device 300 is in fluid communication with the water vapor separation device 500 through the fluid outflow channel. The fluid transport device 600 is used to spray cleaning liquid onto the surface to be cleaned, and the suction nozzle device 200 is used to absorb dirt and surrounding air on the surface to be cleaned, so that the dirt and air form a fluid and guide the fluid to the recovery device 300. The dirt includes liquid and solids, the recovery device 300 is used to intercept the solids and at least part of the liquid in the fluid, and the water and gas separation device 500 is used to separate liquid and gas from the fluid that has been intercepted and processed by the recovery device 300 . In a possible implementation, the fluid inflow channel includes an air inlet channel 401 , the fluid outflow channel includes a return air channel 402 , and the air inlet channel 401 and the return air channel are integrated into the air guide device 400 .

Please refer to Figure 3. The body shell 100 has a certain internal space. The upper part of the body shell 100 is provided with a shell air outlet 104 that communicates with the internal space. The water and gas separation device and the flow guide device 400 are arranged vertically in the body shell 100. Moreover, the water vapor separation device is located above the flow guide device 400. The external fluid enters the water vapor separation device 500 through the flow guide device 400. The fluid processed by the water vapor separation device 500 can be discharged through the housing air outlet 104. The body shell 100 is provided with a fluid delivery device docking portion 102. In this embodiment, the fluid delivery device docking portion 102 is preferably disposed on the top of the body shell 100, but this application does not limit other feasible placement locations. The rear end of the body shell 100 has The recovery device docking part 103 has a handle 101 on the upper part of the body shell 100. The fluid delivery device docking part 102 is located above the water and gas separation device 500. The front end of the handle 101 is close to the fluid delivery device docking part 102, and the rear end of the handle 101 extends to the recovery device. Above the device docking part 103. The fluid delivery device 600 is detachably connected to the body shell 100 through the fluid delivery device docking part 102 , and the recovery device 300 is detachably connected to the body shell 100 through the recovery device docking part 103 .

Inside the cleaning machine, the suction nozzle device 200, the fluid inflow channel, the recovery device 300, the fluid outflow channel, and the water and gas separation device 500 are connected in sequence to form a fluid circulation path. The fan assembly 502 located in the fluid circulation path works to make the fluid path pass through. Negative pressure is generated inside, driving the fluid to flow from the suction nozzle device 200 to the water and gas separation device 500 . Referring to Figures 4 and 5, the external fluid enters the recovery device 300 through the suction nozzle device 200 and the fluid inflow channel in sequence. The solid and liquid sedimentation is completed in the recovery device 300, and the solids and most of the liquid in the fluid are trapped in the recovery device 300. Within, the fluid continues to enter the water and gas separation device 500 along the fluid outflow channel, and the liquid and gas separation is further completed in the water and gas separation device 500, thereby reducing or eliminating the liquid in the fluid discharged from the cleaning machine.

Referring to Figure 8, the water and gas separation device 500 includes a housing 501 and a fan assembly 502; the housing 501 is provided with an isolation member 503, which divides the housing 501 into an upper housing 504 and a lower housing 505. 503 is provided integrally or separately with the casing 501. The upper casing 504 has an isolation cavity 506, a casing air outlet 507 and a wind-shielding mechanism 508. The casing air outlet 507 is in fluid communication with the isolation cavity 506. The wind-shielding mechanism 508 is arranged on the casing. On the air inlet side of the body air outlet 507, the lower housing 505 has a separation chamber 509, a housing air inlet 510 and a water return hole 511. The separation chamber 509 and the isolation chamber 506 are fluidly connected through the drainage structure on the isolation member 503, and the external fluid passes through The air inlet 510 of the housing flows into the separation chamber 509, and at least part of the liquid in the separation chamber 509 flows out of the separation chamber 509 through the water return hole 511; the fan assembly 502 includes an impeller 512 and an impeller driving motor 513. The impeller 512 is arranged in the separation chamber 509. The main body of the driving motor 513 is at least partially disposed in the isolation chamber 506. After the fluid flows through the recovery device 300, at least part of the liquid is separated and stored in the recovery device 300. When the fluid flows through the separation chamber 509, at least part of the liquid gas is separated and enters the isolation chamber. The fluid of 506 is at least partially separated from liquid to gas at the wind blocking mechanism 508 .

The drainage structure is provided between the inner wall of the housing 501 and the impeller driving motor 513 to guide the fluid from the separation chamber 509 to rise along a path close to the inner wall of the housing 501 and away from the impeller driving motor 513 after passing through the isolation member 503 . In this embodiment, the impeller driving motor 513 is arranged vertically in the casing 501. In the fluid flow path from bottom to top, the fluid is guided to flow close to the inner wall of the casing through the drainage structure, so that the liquid in the fluid can meet the inside of the casing. The wall condenses and then flows downward along the inner wall of the housing, keeping the separated liquid away from the upper electrified structure. In addition, the fluid moves away from the impeller drive motor 513 during the rising process, which can effectively reduce the risk of the impeller drive motor 513 wading into water. The wind blocking mechanism 508 is connected to the inner wall of the casing 501 and is on the ascending path of the fluid from the separation chamber 509 moving toward the air outlet 507 of the casing, and is used to intercept the liquid in the fluid rising along the inner wall of the casing 501 . A wind-shielding mechanism 508 is provided in the ascending path of the fluid, so that the rising fluid condenses when encountering the wind-shielding mechanism 508, further trapping liquid in the fluid, and reducing the liquid content in the fluid discharged from the air outlet of the housing.

In one possible implementation, the housing air outlet 507 is a long opening surrounding the outer circumference of the housing 501; the ratio of the length of the housing air outlet 507 to the outer circumference of the housing 501 is 0.1 to 0.5. A long air outlet is provided on the upper part of the casing. On the one hand, it can extend the fluid flow path and improve the water and gas separation effect. On the other hand, the long air outlet can ensure a large enough air outlet area and make the air outlet smooth.

The wind-shielding mechanism 508 is installed on the air inlet side of the housing air outlet 507. Its structure can be shown in Figures 11 and 12. The wind-shielding mechanism 508 can include a first windshield 515 disposed above the housing air outlet 507. The second windshield 516 is provided below the air outlet 507 of the housing and the bracket 517 connecting the first windshield 515 and the second windshield 516. The first windshield 515 and the second windshield 516 form a The air outlet 518 is opposite to the casing air outlet 507 on the casing 501 . The first windshield 515 has a first windshield outer edge 519 facing the inner wall of the housing 501 and a first windshield inner edge 520 facing the impeller drive motor 513. The first windshield outer edge 519 is in contact with the housing. 501 inner walls are connected, and the inner edge 520 of the first windshield has a first windshield skirt 521 extending toward the top of the impeller drive motor 513 . The second windshield 516 has a second windshield outer edge 522 facing the inner wall of the casing 501 and a second windshield inner edge 523 facing the impeller driving motor 513. The second windshield outer edge 522 is in contact with the inner wall of the casing 501. Connectedly, the inner edge 523 of the second windshield has a second windshield skirt 524 extending toward the isolation member 503 . The first windshield 515 and the second windshield 516 are respectively provided with structures extending to both sides of the bracket 517, which can increase the contact area with the fluid and improve the effect of trapping liquid in the fluid. The first windshielding skirt and the second windshielding skirt are elongated structures adapted to the air outlet 507 of the casing, which are conducive to increasing the contact area between the fluid and the windshielding skirt, improving the liquid interception effect, and after interception The liquid can slide down to the bottom of the housing along the first windshield skirt to the side away from the impeller driving motor 513 .

Further, please refer to Figure 6. The upper part of the casing 501 is also provided with an air distribution plate 544. The air distribution plate 544 is located on the air outlet side of the casing air outlet 507 and is used to divide the fluid discharged from the casing air outlet 507 into multiple paths. . In a possible implementation, a shell air outlet 104 is provided on each side of the body shell 100, and the air distribution plate 544 has two fluid outlets corresponding to the shell air outlets 104. After being processed by the water and gas separation device, The fluid comes out of the air outlet 507 of the housing and is divided into two paths for discharge. This design can save parts and reduce costs.

The output shaft 514 of the impeller driving motor 513 passes through the isolation member 503 and is connected to the impeller 512 . The isolation member 503 includes an inner frame 525, an outer frame 526 and at least two isolation blades 527. The outer frame 526 is connected to the inner wall of the housing 501. The inner frame 525 is located in the outer frame 526. The isolation blades 527 connect the inner frame 525 and the outer frame 526. , the projections of adjacent isolation blades 527 on a plane perpendicular to the rotation axis of the output shaft 514 overlap. The projections of adjacent isolation blades on a plane perpendicular to the rotation axis of the output shaft overlap, and the gap for fluid to pass through is not opened on a plane perpendicular to the rotation axis of the output shaft, so that the fluid cannot pass directly through the isolation member from bottom to top. Instead, it first contacts the lower surface of the isolation blades, then goes around to the gaps between the isolation blades, passes through the gaps, and then rises, so that the fluid contacts the isolation blades more fully, and the isolation member has a better interception effect on the liquid in the fluid. In one possible implementation, the design of the isolation blades is as shown in FIG. 9 , and at least two isolation blades 527 are arranged in a clockwise or counterclockwise tilt along the outer circumference of the inner frame 525 . Each isolation blade 527 has a blade leading edge 528 connected to the inner frame 525, a blade trailing edge 529 connected to the outer frame 526, and a blade upper edge 530 and a blade lower edge 531 connecting the blade leading edge 528 and the blade trailing edge 529. The blade The upper edge 530 faces the isolation cavity 506, and the blade lower edge 531 faces the separation cavity 509. The blade lower edge 531 extends below the blade upper edge 530 of the adjacent isolation blade 527, so that the isolation blade 527 and the adjacent isolation blade 527 are in contact with the output shaft. The projections on the plane perpendicular to the axis of rotation of 514 overlap.

In addition, as can be seen from Figure 8, the outer frame 526 may include a water guide plate 532 extending from the inner wall of the housing 501 to the center of the housing 501 and a water baffle 533 extending from the water guide plate 532 to the separation chamber 509. The water guide plate 532 faces toward One side of the isolation chamber 506 is inclined from the isolation chamber 506 toward the separation chamber 509 in the direction extending from the housing 501 to the center of the housing 501 . A water-blocking space 534 is formed between the water blocking plate 533 and the inner wall of the housing 501 . The bottom of the housing 501 is provided with an impeller chamber 535, a guide plate 536 and a guide groove 537 in order from the center outward; the air inlet 510 of the housing is provided at the bottom of the impeller chamber 535, and the water return hole 511 is opened at the bottom of the guide groove 537 ; The guide plate 536 is located below the isolation member 503 and protrudes from the isolation member 503. The guide groove 537 is located below the water-blocking space 534. A flow channel 538 is formed between the water-blocking plate 533 and the guide plate 536. In a possible implementation, the distance from the lower end of the water baffle 533 to the upper end of the guide plate 536 is 6 mm to 8 mm. The impeller 512 includes an impeller air inlet 539 provided at the bottom of the impeller 512 and an impeller air outlet 540 provided at the upper part of the impeller 512. The lower part of the impeller 512 is accommodated in the impeller chamber 535. The upper part of the impeller 512 is higher than the guide plate 536. The impeller air inlet 539 is connected with the casing air inlet 510, and the impeller air outlet 540 is opposite to the flow passage 538. The flow path of the fluid in the lower housing is: it enters the impeller from the impeller air inlet 539. Under the rotation of the impeller blades, the liquid in the fluid is thrown out from the impeller air outlet 540. The liquid passes through the flow passage 538 and hits the inner wall of the housing. On the top, due to the design of the water baffle 533 and the guide groove 537, the liquid repeatedly impacts between the inner wall of the casing and the water baffle and the guide groove and is deposited at the bottom of the guide groove, and flows into the air inlet along the return hole 511. channel to prevent the liquid separated by the impeller from being mixed into the rising fluid.

In one possible implementation, the side of the lower end of the water baffle 533 opposite to the impeller air outlet 540 is provided with an inclined surface inclined toward the guide groove 537, which is beneficial to guiding the liquid separated by the impeller to the guide groove. The side of the guide plate 536 facing the isolation blade 527 is tilted from the guide groove 537 toward the impeller chamber 535. The structure of the guide plate is adapted to the impeller structure, making the lower housing compact and conducive to reducing the overall volume of the machine.

In a possible implementation, a motor compartment 541 is provided in the isolation cavity 506 , and the impeller driving motor 513 is installed in the motor compartment 541 . The motor housing 541 includes an upper motor housing 542 and a lower motor housing 543. The upper motor housing 542 is connected to the top surface of the housing 501, the lower motor housing 543 is connected to the inner frame 525 of the isolation member 503, and the upper motor housing 542 is connected to the top surface of the housing 501. The motor housing 542 has a motor compartment opening. As shown in Figures 7 and 8, the top of the housing 501 is recessed toward the inside of the housing 501 to form an upper motor housing 542. The upper motor housing 542 has an opening facing the inside of the housing 501, and the lower motor housing 543 It is in the shape of a hollow tube. The lower part of the lower motor housing 543 is connected to the upper surface of the isolation member 503. The lower motor housing 543 surrounds the shaft hole 545 of the isolation member. The upper opening of the lower motor housing 543 is connected to the upper motor housing. The open openings of 542 are butted and sealed to form a motor compartment 541, and an isolation cavity 506 surrounds the motor compartment 541. The upper motor housing 542 and the lower motor housing 543 cooperate to form a motor compartment 541 for installing the impeller driving motor 513, which facilitates parts processing and assembly. In this embodiment, the motor compartment 541 is formed by assembling the upper motor housing 542 and the lower motor housing 543. The inner frame 525 serves as the bottom of the motor compartment 541, and is provided with a hole for the output shaft 514 of the impeller drive motor 513 to pass through. Isolator shaft hole 545; in another embodiment, the motor compartment 541 can be integrally formed, that is, the top of the housing 501 is recessed toward the inside of the housing 501 to form a semi-through groove structure, and the bottom of the recess is opened for the output of the impeller drive motor 513. The shaft hole through which the shaft 514 passes.

Referring to Figure 8, the inner frame 525 is provided with a spacer shaft hole 545, and the impeller 512 is provided with an impeller shaft hole 546. The output shaft 514 of the impeller drive motor 513 passes through the spacer shaft hole 545 and then enters the impeller shaft hole 546. An impeller insert 547 is set at the end of the output shaft 514 . The lower part of the impeller insert 547 is accommodated in the impeller shaft hole 546 , and the upper part of the impeller insert 547 is accommodated in the isolator shaft hole 545 . There is also a sealing ring 548 between the impeller insert 547 and the isolator shaft hole 545. The upper part of the sealing ring 548 is sealingly connected with the bearing 549 of the impeller driving motor 513. The lower part of the sealing ring 548 is in contact with the upper part of the impeller insert 547. The sealing ring 548 and the impeller insert 547 are both made of insulating material. This design makes the output shaft of the impeller drive motor double-insulated, which enhances the waterproof effect of the live parts inside the housing and can meet the safety requirements for high-voltage power supply.

The impeller drive motor drives the impeller to rotate, causing negative pressure in the separation chamber. The fluid enters the separation chamber from the return air channel. Under the action of the centrifugal force generated by the rotation of the impeller, the liquid in the fluid is thrown out and hits the inner wall of the shell, and flows along the The inner wall of the casing flows into the return pipe and enters the air inlet channel through the return pipe. The fluid continues to pass through the isolation piece and moves toward the isolation cavity and the air outlet of the casing. During this process, the liquid in the fluid is intercepted by the isolation piece and the windshield mechanism. The liquid content in the fluid is further reduced and the water-vapor separation effect is improved. After the impeller drive motor is shut down, the impeller stops rotating and cannot provide enough centrifugal force to separate the liquid in the fluid. At this time, the fluid containing more liquid will not only be blocked by the isolation member during its upward movement, but also Affected by gravity, the liquid in the fluid flows downward through the return pipe into the air inlet channel, reducing the amount of liquid entering the isolation chamber and reducing the risk of water intrusion in the impeller drive motor. In addition, the separated liquid enters the air inlet channel through the return pipe and is not easy to flow back into the separation chamber under the vacuum action of the impeller drive motor. Even if it enters the separation chamber, due to the blocking effect of the isolation piece, the liquid reaching the isolation chamber can be greatly reduced. In addition, The motor compartment has a good waterproof effect on the impeller drive motor and can prevent water from entering the impeller drive motor.

The structure of the flow guide device is shown in Figures 14 and 15, and may include a flow guide base 407 and a partition 408. The front end of the diversion base 407 is provided with a base inlet, the rear end of the diversion base 407 is provided with a base outlet, and the inside of the diversion base 407 is provided with a hollow channel connecting the base inlet and the base outlet. The top of the seat 407 is provided with an air guide port 409 that communicates with the hollow channel. The air guide port 409 is connected with the air inlet 510 of the housing of the water and gas separation device. The air guide 409 can be in any shape, including but not limited to rectangle, circle, triangle, etc. Preferably, the shape of the air guide 409 matches the shape of the housing air inlet 510 to facilitate a sealed connection between the two. . The partition 408 is disposed in the hollow channel. One end of the partition 408 is connected to the inner wall of the hollow channel and is located between the base entrance and the base outlet. The other end of the partition 408 surrounds the air guide opening 409 and then extends to the base outlet. The base outlet is divided into a first base outlet 410 and a second base outlet 411. The base inlet communicates with the first base outlet 410 to form an air inlet channel 401. The second base outlet 411 communicates with the air guide opening 409. A return air channel 402 is formed. Among them, the ratio of the area of the return air channel 402 to the area of the air inlet channel 401 is 0.8-1.2. The area of the return air channel is close to or equal to the area of the air inlet channel, so that the water vapor separation speed at the back end is equal to the water absorption speed at the front end, improving the water vapor separation efficiency.

Referring to Figures 7 and 14, the air guide device 400 includes a joint cover 413. The joint cover 413 is provided with an air inlet joint 414 and a return air joint 415. The joint cover 413 is disposed at the rear end of the guide base 407 and Covering the base outlet, the partition 408 is connected to the joint cover 413 and is located between the air inlet joint 414 and the return air joint 415. The air inlet joint 414 connects the first base outlet 410 and the air inlet pipe 302 of the recovery device 300. The air outlet joint 415 communicates with the second base outlet 411 and the air outlet pipe 303 of the recovery device 300 . The base inlet of the flow guide base 407 is provided with a first connecting portion 416. The first connecting portion 416 is connected to the outlet of the air guide tube 204 of the suction nozzle device 200. The base outlet of the flow guide base 407 is provided with a second connecting portion. 417, the second connecting part 417 is connected to the joint cover 413. The height of the first connecting part 416 and the height of the second connecting part 417 are both greater than the height of the flow guide base 407, thereby forming a recessed accommodation part 418 on the top surface of the flow guide base 407, and the lower part of the water gas separation device is located in the accommodation part 418. Within Department 418. The air inlet channel and the return air channel are arranged horizontally side by side, which reduces the height of the air duct structure without losing the function of the air duct, leaving more space for the separation of water and gas in the shell; further, the flow guide device is designed to be two low in the middle. The high-side structure allows the water and gas separation device to be accommodated in the low area in the middle, which can increase the tightness and firmness of the combination of the diversion device and the water and gas separation device, while reducing the height requirements for the installation space and reducing the cost of the cleaning machine. Overall machine height. In addition, the air inlet joint 414 and the return air joint 415 are both cylindrical pipe joints. The diameter of the cylindrical pipe joint is greater than the height of the base outlet. A second connecting part 417 is provided at the base outlet so that the second connecting part 417 The height of the opening is close to the diameter of the cylindrical pipe joint, and the setting of the second connecting portion 417 can match the connection between the base outlet and the cylindrical pipe, playing a smooth transition role. A first connecting portion 416 is provided at the entrance of the base. The opening area of the first connecting portion 416 is larger than the opening area of the entrance of the base. The air guide tube is connected to the air guide device through the first connecting portion to provide a smooth transition.

In this embodiment, the guide groove 537 is an annular groove surrounding the guide plate 536, including but not limited to a complete annular guide groove, or a combination of multiple grooves arranged along the inner wall of the housing to form an annular pattern. A plurality of water return holes 511 are provided in the guide groove 537 along the circumferential direction. The water return hole 511 may be connected to the air inlet channel 401 through the first return water pipe 403, or communicate with the air inlet channel 401 through the second return water pipe 404, or be connected to the air inlet channel 401 through the first return water pipe 403 and the second return water pipe 404. Connected. The first return pipe 403 passes through the top surface of the guide base 407 and is connected to the air inlet channel 401, and the second return pipe 404 passes through the bottom or side surface of the guide base 407 and is connected to the air inlet channel 401. In a possible implementation, one end of the second return pipe 404 connected to the air inlet channel 401 is close to the first base outlet 410, and the liquid in the housing can be sent to the air inlet channel 401 through the second return pipe 404, and the fan assembly The negative pressure generated by 502 is quickly directed to the sewage storage tank, reducing or preventing the liquid from staying in the air inlet channel. By introducing the liquid from the separation chamber into the air inlet channel through the first return pipe and/or the second return pipe, the liquid can be prevented from entering the separation cavity through the return air channel again for water and gas separation. The separated liquid enters the air inlet channel through the return pipe, and is difficult to flow back into the separation chamber under the vacuum action of the impeller drive motor.

Referring to Figure 13, the top of the guide base 407 is provided with a first water hole 405 opposite to the air inlet channel 401, and the bottom and/or side of the guide base 407 is provided with a second water hole 405 opposite to the air inlet channel 401. Water hole 406. The return hole 511 located above the air inlet channel 401 can be connected to the first water hole 405 of the air inlet channel 401 through the first return pipe 403 , and the return hole 511 located above the return air channel 402 can be connected through the second return pipe 404 It is connected with the second water hole 406 of the air inlet channel 401 . The first return pipe 403 may be a straight pipe or a curved pipe, and the second return pipe 404 may be a curved pipe. The first return pipe 403 and the second return pipe 404 can be either hard pipes or flexible pipes. As shown in Figure 13, the first return pipe 403 is a straight pipe to shorten the liquid return path, allowing the liquid in the separation chamber to flow back to the air inlet channel more quickly, and at the same time, it is beneficial to reduce the overall height of the cleaning machine.

In a possible implementation, as shown in Figures 14-16, an escape portion 412 is provided on the side of the flow guide base 407, and the avoidance portion 412 is recessed from the side of the flow guide base 407 into the middle of the flow guide base 407. , the second return pipe 404 passes through the escape portion 412 and communicates with the second water receiving hole 406 . The second return water pipe passes through the avoidance part and is connected to the diversion device and the water and gas separation device to prevent the second return water pipe from protruding from the side, does not increase the width of the cleaning machine, and is conducive to miniaturization of the cleaning machine.

Referring to Figures 10 and 13, there are four water return holes 511 evenly distributed along the circumferential direction in the guide groove 537. Three of the water return holes are located above the air inlet channel 401 and pass through the first return water pipe 403 and the air inlet channel 401. The other return water hole is located above the return air channel 402 and communicates with the air inlet channel 401 through the second return water pipe 404 . This design allows users to use the machine from all angles and introduce the liquid in the separation chamber into the air inlet channel.

When the impeller drive motor drives the impeller to rotate, the water-containing gas passes through the suction nozzle device, air inlet channel, recovery device, return air channel and water gas separation device in sequence; when passing through the recovery device, the liquid and impurities with larger mass in the fluid are deposited in the recovery device. The lower part of the device greatly reduces the amount of liquid in the fluid reaching the water and gas separation device. Furthermore, since the water and gas separation device is arranged vertically on the flow guide device, the isolation chamber is above the separation chamber, and the return hole is close to the flow guide device, the liquid after water and gas separation is mainly concentrated in the separation chamber, and the impeller drive motor is far away from the separation chamber. liquid, reducing the risk of motor wading. In addition, the liquid trapped by the impeller, isolation piece, inner wall of the casing and windshield mechanism can be quickly discharged from the water return hole at the bottom into the air inlet channel, reducing or eliminating the accumulation of liquid inside the water and gas separation device, and preventing the separated liquid from being trapped in the casing. Internal circulation further improves the safety of the cleaning machine.

Figures 17 to 25 show the structure of the recovery device. The recovery device 300 includes a sewage storage tank 301, an air inlet duct 302, an air outlet duct 303 and a drainage plug 317. A sewage storage cavity 304 is formed inside the sewage storage tank 301. The sewage tank 301 is provided with a sewage storage tank air inlet 305, a sewage storage tank air outlet 306 and a sewage discharge outlet 316. The sewage storage tank air inlet 305, the sewage storage tank air outlet 306 and the sewage discharge outlet 316 are all connected to the sewage storage cavity 304, and the drainage plug 317 is detachably connected to the sewage storage tank 301 to block or open the sewage outlet 316. The air inlet pipe 302 and the air outlet pipe 303 are arranged in the sewage storage cavity 304; the entrance of the air inlet pipe 302 communicates with the outside through the air inlet 305 of the sewage storage tank. Fluid communication is used to guide external fluid to the dirt storage chamber 304 so that at least part of the liquid in the fluid is deposited in the dirt storage chamber 304; the outlet of the air outlet pipe 303 is connected to the outside of the recovery device 300 through the air outlet 306 of the dirt storage tank. In order to guide the fluid separated from water and gas in the dirt storage chamber 304 to the outside of the recovery device 300; the outlet of the air inlet pipe 302 and the entrance of the air outlet pipe 303 are located in the middle area of the dirt storage cavity 304 and are in contact with the inner wall of the dirt storage tank 301. spacing.

The air inlet 305 of the dirt storage tank and the air outlet 306 of the dirt storage tank can be provided on the front end surface of the dirt storage tank 301, or on the bottom surface of the dirt storage tank 301, where the front end surface is connected to the bottom surface. As shown in Figure 17, the air inlet 305 of the dirt storage tank and the air outlet 306 of the dirt storage tank are located at the lower part of the front end surface of the dirt storage tank 301. The sewage outlet is arranged on the side of the sewage storage tank away from the air inlet of the sewage storage tank. The location of the sewage outlet is staggered with the area of the recovery device 300 connected to the body shell 100, so that the recovery device can be removed from the body shell. Open the drain outlet to drain out the dirt.

The air inlet pipe 302 is connected to the air inlet 305 of the dirt storage tank, and the air outlet pipe 303 is connected to the air outlet 306 of the dirt storage tank. The air inlet pipe 302 and the air outlet pipe 303 both extend from the lower part of the dirt storage chamber 304 to the upper part of the dirt storage chamber 304. Both the air inlet duct 302 and the air outlet duct 303 include at least a section of straight pipe or bent pipe. For example, the air inlet duct 302 and the air outlet duct 303 may both be straight pipes or bent pipes, or one may be a straight pipe and the other may be an bent pipe. This embodiment does not limit the shapes of the air inlet duct 302 and the air outlet duct 303 . , as long as the fluid can circulate smoothly in the pipeline. The angle between the air inlet duct 302 and the air outlet duct 303 and the bottom of the sewage storage tank 301 is 25°-35°. By arranging the air inlet duct 302 and the air outlet duct 303 in the dirt storage tank at an angle, it is possible to prevent the liquid in the dirt storage tank from pouring back into the air inlet duct 302 or the air outlet duct 303 when the cleaning machine is used at an angle.

The outlet of the air inlet duct can be located on the side of the air inlet duct 302 or the end of the air inlet duct 302 , and the inlet of the air outlet duct 303 can be located on the side of the air outlet duct 303 or the end of the air outlet duct 303 . For example, the outlet of the air inlet duct is located at the end of the air inlet duct 302 and the entrance of the air outlet duct 303 is located at the end of the air outlet duct 303. Alternatively, the outlet of the air inlet duct is located at the side of the air inlet duct 302 and the outlet of the air outlet duct. The entrance of 303 is provided on the side of the air outlet duct 303, or the outlet of the air inlet duct is provided on the side of the air inlet duct 302, and the entrance of the air outlet duct 303 is provided on the end of the air outlet duct 303, or the outlet of the air inlet duct is provided on At the end of the air inlet duct 302, the entrance of the air outlet duct 303 is opened on the side of the air outlet duct 303. For the outlet of the air inlet pipe 302 and the entrance of the air outlet pipe 303, the distance between the outlet of the air inlet pipe and the entrance of the air outlet pipe can be increased to extend the residence time of the fluid in the dirt storage chamber and improve the separation effect. The outlet of the air inlet duct and the entrance of the air outlet duct can be designed to have the same shape and size to balance the air intake and return air volumes. It should be noted that the end of the air inlet pipe refers to the end of the air inlet pipe that extends into the dirt storage cavity, and the end of the air outlet pipe 303 refers to the end of the air duct 303 that extends into the dirt storage cavity.

In order to prevent the liquid in the fluid from directly entering the air outlet pipe 303 from the air inlet pipe 302, the outlet of the air inlet pipe 302 and the entrance of the air outlet pipe 303 are separated by a wind blocking rib 307. The wind blocking rib 307 is arranged on the air inlet pipe. The outlet of 302 and/or the inlet of the air outlet pipe 303. Specifically, the wind-shielding ribs 307 are arranged at the entrance of the air outlet duct 303 , and the wind-shielding ribs 307 are at least 5 mm higher than the entrance of the air outlet duct 303 . The wind blocking rib 307 includes a first isolation part 308. The first isolation part 308 is located between the outlet of the air inlet duct 302 and the entrance of the air outlet duct 303. The first isolation part 308 is used to isolate the outlet of the air inlet duct 303 from the air outlet duct 303. inlet to prevent the liquid in the fluid coming out of the air inlet pipe outlet from directly entering the air outlet pipe 303 entrance. Further, the wind blocking rib 307 also includes second isolation parts 309 connected to both sides of the first isolation part 308. The second isolation part 309 extends in a direction away from the outlet of the air inlet duct 302 or the inlet of the air outlet duct 303. The two isolation parts are used to prevent the liquid in the fluid from crawling into the air outlet duct 303 along the edge of the inlet of the air outlet duct 303 . For example, the wind blocking ribs 307 can be U-shaped, with the two straight sides (short ribs) of the U facing the entrance of the air inlet duct to prevent liquid from entering the air outlet duct 303 along the short ribs on the air outlet duct 303 . . The air inlet duct, the air outlet duct 303 and the wind blocking ribs can be integrally formed to simplify the processing procedures and assembly steps.

Furthermore, a windshield mechanism 310 is provided at the outlet of the air inlet duct 302 and/or the entrance of the air outlet duct 303 . The windshield mechanism 310 includes a windshield seat 311 and a windshield 313 . The windshield 311 is provided with an opening 312. When the windshield 311 is set at the outlet of the air inlet duct 302 and/or the entrance of the air outlet duct 303, the opening 312 communicates with the outlet of the air inlet duct 302 and/or the entrance of the air outlet duct 303. Or the entrance of the air outlet pipe 303; the wind shield 313 is movably connected with the wind shield seat 311 to open or shield the opening 312. The windshield 313 is accommodated in the opening 312. The windshield 313 has a movable part 314 and a fixed part 315. The fixed part 315 of the windshield 313 is connected to the edge of the opening 312. The movable part 314 of the windshield 313 is connected to the opening 312. There is a gap at the edge of the opening 312, and the movable part 314 of the windshield 313 can rotate relative to the fixed part 315 to cover or expose the opening 312. The thickness of the movable part 314 is smaller than the thickness of the fixed part 315 . The windshield 313 is made of soft rubber. For example, the windshield 313 can be made of silicone. When the fan assembly works to generate negative pressure in the internal fluid channel of the cleaning machine, the windshield 313 at the entrance of the air outlet duct 303 opens toward the inside of the air outlet duct 303 under the action of suction, and the windshield 313 at the outlet of the air inlet duct opens 313 opens in the direction away from the air inlet duct 302 under the action of suction. The air inlet duct 302 is connected with the air outlet duct 303. The fluid enters the sewage storage chamber 304 from the air inlet duct 302. The liquid in the fluid is deposited in the sewage storage chamber 304 under the action of gravity. In the cavity 304, the gas in the dirt storage cavity 304 is sucked into the air outlet pipe 303, and then introduced into the water and gas separation device; after the fan assembly stops working, the air pressure in the fluid channel returns to the same as the outside air pressure, and the windshield 313 returns to the shielding and open position. The state of the opening prevents the liquid in the dirt storage chamber 304 from flowing into the water and gas separation device through the water inlet pipe and/or the water outlet pipe.

As shown in Figure 19, the outlet of the air inlet duct 302 is adjacent to the entrance of the air outlet duct 303, and the windshield mechanism 310 provided at the outlet of the air inlet duct 302 is integrated with the windshield mechanism 310 provided at the entrance of the air outlet duct 303. Become one.

The outlet of the air inlet duct and the entrance of the air outlet duct 303 are kept at a distance from the inner wall of the sewage storage tank 301 . The distance between the outlet of the air inlet pipe and the entrance of the air outlet pipe 303 and the inner wall of the sewage storage tank 301 will be described below with reference to Figures 22 to 25.

Referring to FIGS. 22 and 23 , the outlet of the air inlet pipe 302 has a first left endpoint 318 and a first right endpoint 319 . The distance between the first left endpoint 318 and the left wall of the same cross-section as the first left endpoint 318 on the dirt storage tank 301 is the first left distance L11, and the distance between the first right endpoint 319 and the first left endpoint 319 on the dirt storage tank 301 is the first left distance L11. The distance between the first right endpoint 319 on the right side wall of the same cross section is the first right spacing L12, and the ratio of the first left spacing L11 to the first right spacing L12 is 0.6-0.8. The outlet of the air inlet pipe 302 has a first top endpoint 320 and a first bottom endpoint 321 . The distance between the first top endpoint 320 and the top wall of the same cross-section as the first top endpoint 320 on the dirt storage tank 301 is the first upper distance L13, and the distance between the first bottom endpoint 321 and the first bottom endpoint 321 on the dirt storage tank 301 is The distance between the bottom walls of the same cross section is the first lower spacing L14, and the ratio of the first upper spacing L13 to the first lower spacing L14 is 0.1-0.9. The outlet of the air inlet pipe 302 has a first front endpoint 322 and a first rear endpoint 323 . The distance between the first front end point 322 and the front side wall of the same longitudinal section as the first front end point 322 on the dirt storage tank 301 is the first front distance L16, and the distance between the first rear end point 323 and the first rear end point 323 on the dirt storage tank 301 and the first front side wall of the same longitudinal section is L16. The distance between a rear endpoint 323 on the rear side wall of the same longitudinal section is the first rear spacing L15, and the ratio of the first front spacing L16 to the first rear spacing L15 is 0.6-0.8.

Referring to Figures 24 and 25, the inlet of the air outlet pipe 303 has a second left endpoint 324 and a second right endpoint 325. The distance from the second left endpoint 324 to the left wall of the same cross-section as the second left endpoint 324 on the dirt storage tank 301 is the second left distance L21, and the distance between the second right endpoint 325 and the second left endpoint 324 on the dirt storage tank 301 is the second left distance L21. The distance between the second right endpoint 325 on the right side wall of the same cross section is the second right spacing L22, and the ratio of the second left spacing L21 to the second right spacing L22 is 0.6-0.8. The inlet of the air outlet pipe 303 has a second top endpoint 326 and a second bottom endpoint 327 . The distance between the second top endpoint 326 and the top wall of the same cross-section as the second top endpoint 326 on the dirt storage tank 301 is the second upper distance L23, and the distance between the second bottom endpoint 327 and the second bottom endpoint 327 on the dirt storage tank 301 is The distance between the bottom walls of the same cross section is the second lower spacing L24, and the ratio of the second upper spacing L23 to the second lower spacing L24 is 0.1-0.9. The inlet of the air outlet pipe 303 has a second front end point 328 and a second rear end point 329. The distance from the second front end point 328 to the front side wall of the same longitudinal section as the second front end point 328 on the dirt storage tank 301 is the second front distance L26, and the distance from the second rear end point 329 to the dirt storage tank 301 and the second front side wall of the same longitudinal section The distance between the two rear end points 329 on the rear side wall of the same longitudinal section is the second rear distance L25, and the ratio of the second front distance L26 to the second rear distance L25 is 0.6-0.8.

The dirt storage tank 301 can be in any shape, such as a rectangular parallelepiped, a cube, a sphere, a special-shaped structure, etc. The shape of the dirt storage tank 301 is not limited in this embodiment. In the embodiment shown in Figure 17, the dirt storage tank 301 is generally in a rectangular parallelepiped structure.

The size design of the sewage storage tank 301 is coordinated with the overall cleaning machine. For example, if the cleaning machine requires a larger sewage storage capacity, the size of the sewage storage tank can be expanded. If the cleaning machine needs to be compact and lightweight, the size of the sewage storage tank can be appropriately reduced. Usually the relevant dimensions of the recovery device are as follows: the volume of the dirt storage chamber 304 is 800cm ³ -1350cm ³ . The first left spacing L11 is 23mm-53mm, the first right spacing L12 is 23mm-53mm, the first upper spacing L13 is 10mm-40mm, the first lower spacing L14 is 18mm-48mm, and the first front spacing L16 is 77mm-167mm. The first rear distance L15 is 20mm-80mm. The second left spacing L21 is 23mm-53mm, the second right spacing L22 is 23mm-53mm, the second upper spacing L23 is 10mm-40mm, the second lower spacing L24 is 18mm-48mm, and the second front spacing L26 is 77mm-167mm. The second rear distance L25 is 20mm-80mm. The cross-sectional width of the air inlet duct 302 and the air outlet duct 303 is 13.5mm-28.5mm.

When the cleaning machine is used at any angle, the safe volume of the dirt storage chamber 304 is not less than 0.1 times the total volume of the dirt storage chamber 304. The safety volume refers to the maximum volume of liquid that can be stored in the sewage storage tank 301 when the liquid level does not exceed either the outlet of the air inlet duct 302 or the inlet of the air outlet duct 303 . Specifically, the recovery device 300 has multiple usage postures as the usage angle of the cleaning machine changes. The usage postures include at least a horizontal usage posture, an upright usage posture, and an inverted usage posture. The horizontal usage posture refers to the state in which the suction nozzle of the cleaning machine is in contact with the horizontal surface to be cleaned and the cleaning machine is above the surface to be cleaned. When the recovery device 300 is in the horizontal usage posture, the safe volume of the dirt storage chamber 304 is equal to the safety volume of the dirt storage chamber 304 The ratio of total volume is 0.4-0.6. The upright usage posture refers to the state in which the suction nozzle of the cleaning machine is in contact with the vertical surface to be cleaned. When the recovery device 300 is in the upright usage posture, the ratio of the safe volume of the dirt storage chamber 304 to the total volume of the dirt storage chamber 304 is 0.4. -0.6. The inverted use posture refers to the state in which the suction nozzle of the cleaning machine is in contact with the horizontal surface to be cleaned and the cleaning machine is below the surface to be cleaned. When the recovery device 300 is in the inverted use posture, the safe volume of the dirt storage chamber 304 is equal to the safety volume of the dirt storage chamber 304 The ratio of total volume is 0.1-0.3. Figure 28 shows the upright usage posture of the cleaning machine, Figure 29 shows the horizontal usage posture of the washing machine, and Figure 30 shows the inverted usage posture of the washing machine. The dotted line in Figures 28 to 30 is the highest water level line, that is, the usage posture. The liquid level height of the maximum volume of the lower dirt storage chamber.

The recovery device 300 is detachably connected to the body shell 100 through buckle components and overlapping components. The buckle assembly includes a buckle element 330 and a receiving element 331. The buckle element 330 can be connected or separated from the receiving element 331. The buckling element 330 and the receiving element 331 are respectively provided on one of the recovery device 300 and the body shell 100. The overlapping assembly includes an overlapping element 334 and a supporting element 335. The overlapping element 334 has an accommodating space, and the supporting element 335 can enter or exit the accommodating space. The overlapping element 334 and the supporting element 335 are respectively provided in the recovery device 300 and the main body of the cleaning machine. on one of them.

As shown in Figure 3, the body shell 100 is provided with a recovery device docking part 103 and a handle 101. The recovery device docking part 103 is located below the handle 101. The recovery device 300 and the recovery device docking part 103 are detachably connected. The front end of the recovery device 300 It is connected to the flow guide device 400 and close to the front side of the handle 101, and the rear end of the recovery device 300 is close to the rear side of the handle 101. The docking part 103 of the recovery device includes a supporting element 335 and a receiving element 331 . The supporting element 335 is close to the water and gas separation device 500 , and the receiving element 331 is located below the handle 101 . The recovery device 300 is provided with a buckle element 330. The buckle element 330 includes a buckle 332 and a disassembly button 333 installed on the sewage storage tank 301. The sewage storage tank 301 is provided with an overlapping element 334. The overlapping element 334 is located on the storage tank. Below the air inlet 305 of the sewage tank and the air outlet 306 of the sewage storage tank. The recovery device 300 is detachably connected to the recovery device docking portion 103. The overlapping element 334 of the recovery device 300 can be mounted on the support element 335, and the detachment button 333 can drive the buckle 332 to move to enter or exit the receiving element 331.

In this embodiment, the air inlet pipe and the air outlet pipe are arranged obliquely in the dirt storage tank. The outlet of the air inlet pipe and the entrance of the air outlet pipe are both located in the middle area of the dirt storage cavity and keep a distance from the inner wall of the dirt storage tank. The sewage storage tank has a certain sewage storage capacity at any tilt angle. When the cleaning machine is tilted or turned over, the liquid in the sewage storage tank will not easily enter the air inlet and outlet ducts, avoiding water inlet from the motor and water spray from the suction nozzle, and expanding the use angle of the cleaning machine.

Referring to Figures 31 and 32, the suction nozzle device 200 includes a suction nozzle 205, a brush roller 203, an air guide 204, a nozzle cover 201 and a suction nozzle bottom plate 202. The brush roller 203 is arranged on the suction nozzle bottom plate 202. The nozzle cover 201 is provided at the front end of the brush roller 203, and the suction port 205 is provided on the nozzle cover 201. A suction nozzle channel 208 is formed between the suction nozzle cover 201 and the brush roller 203. The air guide 204 extends from the brush roller 203. The front end of 203 extends to the rear end of the brush roller 203 and is located between the brush roller 203 and the body shell 100. The inlet of the air duct 204 is in fluid communication with the suction port 205 through the suction nozzle channel 208, and the outlet of the air duct 204 is in fluid communication with the storage tank. The dirt tank air inlet 305 is fluidly connected. Specifically, the outlet of the air guide 204 is connected to the first connecting portion 416 of the air guide device 400, thereby fluidly connecting the air inlet channel 401, and the air inlet 305 of the sewage storage tank fluidly connects the air inlet channel 401 and the air inlet pipe 302, so that The external fluid can reach the dirt storage chamber 304 through the suction port 205, the suction nozzle channel 208, the air duct 204, the air inlet channel 401 and the air inlet duct 302 in sequence.

Referring to Figure 31, the bottom plate 202 of the suction nozzle is provided with a brush opening 214. The brush roller 203 includes a brush roller 215, a scraping element 216 and a brush roller drive motor 217. The scraping element 216 is arranged on the brush roller 215. The brush roller The driving motor 217 is coupled with the brush roller 215 and can drive the brush roller 215 to rotate. The scraping element 216 at least partially extends out of the roller brush opening 214 . The wiper element 216 may include a wiper blade and/or bristles. The suction port 205 and the roller brush port 214 are both elongated, making the cleaning area larger. The air inlet area of the suction port 205 is 200mm ² -500mm ² . The bottom surface of the suction nozzle cover 201 is provided with a plurality of convex ribs 213 surrounding the suction port 205. There is a gap between two adjacent convex ribs 213. Specifically, the convex ribs 213 are spaced annularly around the suction port 205 and are higher than the suction port 205. Flat surface 0.1mm-10mm. Setting a gap between the convex ribs can prevent the suction port from completely fitting the surface to be cleaned, thereby weakening the air intake effect. For example, when cleaning tabletops or sheets, the setting of the convex ribs will not make the suction port fit the surface, and liquid or wind can pass through the convex ribs. The gap between the ribs enters the suction port.

As shown in Figure 34, when the cleaning machine is in use or placed, the line connecting the highest point to the lowest point on the air duct 204 forms an included angle β with the bottom surface of the body shell, and the included angle β is 30° to 50°; Moreover, the distance between the farthest point on the air duct 204 and the plane of the bottom surface of the body shell 100 is greater than the distance between any point from the outlet of the air duct 204 to the air inlet 305 of the dirt storage tank and the plane of the bottom surface of the body shell 100 . The distance between the outlet of the air inlet duct 302 and the plane of the bottom surface of the body shell 100 is less than the distance of the furthest point on the air duct 204 from the plane of the bottom surface of the body shell 100 . The air inlet duct is fluidly connected to the air duct. In order to prevent liquid from spraying out from the suction port, the highest point of the air duct is designed to be higher than the outlet of the air inlet duct. In this way, even if liquid enters the air inlet duct, it cannot pass through the highest point of the air duct. It flows out from the suction port, which can effectively avoid water spraying from the suction port.

The air guide duct 204 and the air inlet duct 302 are on the same side of the air inlet channel 401 and both form an included angle with the air inlet channel 401 . The included angle between the air guide duct 204 and the air inlet channel 401 is 120°˜150°. The angle between the air inlet pipe 302 and the air inlet channel 401 is 15°˜45°. Both the air guide duct and the air inlet duct extend away from the air inlet channel to prevent the liquid in the dirt storage chamber from pouring back from the air inlet duct into the air inlet channel, and then flowing along the air guide duct to cause water spray from the suction port.

Referring to Figure 32, the air guide duct 204 may include a first air guide duct 206 and a second air guide duct 207. The inlet of the first air guide duct 206 is connected to the suction port 205, and the outlet of the second air guide duct 207 is connected to the first air guide duct 207. The inlet of the air duct 206 is connected, and the fluid flows out of the air duct 204 through the outlet of the second air duct 207 . The inlet of the second air guide duct 207 is the highest point of the air guide duct 204 , and the outlet of the second air guide duct 207 is the lowest point of the air guide duct 204 . An included angle α is formed between the first air guide duct 206 and the second air guide duct 207 . The length of the second air guide duct 207 is 52mm-97.5mm.

In this embodiment, the suction nozzle device, air inlet channel, recovery device, return air channel and water vapor separation device of the cleaning machine constitute the fluid entry path, and the air guide duct of the suction nozzle device is designed so that when using and handling the cleaning machine , the highest point of the air duct exceeds the highest point of the air inlet channel and the highest liquid storage level of the recovery device. When the cleaning machine is in use and in the handling state, the liquid level of the liquid in the air inlet channel of the cleaning machine and the recovery device If it does not exceed the highest point of the air duct, it cannot flow out along the air duct, thereby preventing water from spraying from the suction port of the suction nozzle device.

In a possible implementation, a liquid storage chamber 209 is provided at the outlet of the air duct 204. The liquid storage chamber 209 is located in a space formed by the suction port 205, the air duct 204, the air inlet channel 401 and the air inlet duct 302 that are connected in sequence. The fluid enters outside the path; and in the handling state of the cleaning machine, the liquid storage chamber 209 is located below the air duct 204, the air inlet channel 401 and the air inlet duct 302. The volume of the liquid storage chamber 209 is 5cm ³ -30cm ³ . The liquid storage chamber 209 is located between the air inlet channel 401 and the suction port 205 . Please refer to Figure 33 for details. The outlet of the air duct 204 is provided with a liquid storage pipe 210. The liquid storage pipe 210 can be a straight pipe or a curved pipe. The liquid storage tube 210 is in fluid communication with the air guide tube 204 and the air inlet channel 401. One end of the liquid storage tube 210 away from the air inlet channel 401 has a receiving chamber with a cavity structure, thereby defining a liquid storage chamber 209. The air guide tube 204, the liquid storage tube 210 and the air inlet channel 401 form a Y-shape. The included angle between the liquid storage pipe 210 and the air guide pipe 204 is 30°-80°. The air guide duct 204 and the liquid storage pipe 210 can be formed separately and then connected into one body, or the air guide duct 204 and the liquid storage pipe 210 can be integrally formed. In this embodiment, a liquid storage cavity is provided to introduce the remaining liquid in the air inlet channel into the liquid storage cavity to avoid water spraying at the suction port. The next time the cleaning machine is used for cleaning, the liquid in the liquid storage cavity will be sucked in by the impeller drive motor. Air inlet channel. Since the liquid storage chamber is located at the outlet of the air duct, when the suction nozzle device of the cleaning machine is facing down and the recovery device is facing upward, the liquid will flow into the liquid storage chamber and will not flow along the air duct to the suction port, thus preventing the suction port from spraying water.

In a possible implementation, a backflow prevention structure may be provided in the air duct 204 . The backflow prevention structure is a one-way valve that allows fluid to flow from the suction port 205 to the air inlet channel 401 .

Referring to Figure 34, the nozzle bottom plate 202 forms an included angle γ with the bottom surface of the body shell 100. When the cleaning machine is supported on the support surface through the bottom surface of the body shell 100, the nozzle bottom plate 202 is in a position away from the support surface. When the cleaning machine is placed horizontally on the support surface, the bottom plate of the suction nozzle does not contact the support surface, which is conducive to maintaining the hygiene of the suction mouth.

Referring to Figures 35-42, the fluid delivery device 600 includes a nozzle 601, a liquid storage tank 602, a pump 603, an operating handle 604, a first diversion channel 605 and a second diversion channel 606. The nozzle 601, the liquid storage tank 602, The pump 603, the operating handle 604, the first diversion channel 605 and the second diversion channel 606 are integrated into one body and are detachably connected to the body shell 100 of the cleaning machine, so that the cleaning machine has the function of providing cleaning fluid.

Among them, a liquid storage chamber 607 is formed inside the liquid storage tank 602 . The pump 603 includes a pump housing 608 and a joystick 609. The joystick 609 can move within the pump housing 608 to change the volume of the pump chamber defined by the front end of the pump housing 608 and the joystick 609. The pump inlet 610 and the pump outlet 611 are connected. The first diversion channel 605 communicates with the liquid storage tank 602 and the pump inlet 610, and is used to guide the liquid in the liquid storage chamber 607 to the pump chamber. The second diversion channel 606 communicates with the pump outlet 611 and the nozzle 601, and is used to guide the liquid in the pump chamber to the nozzle 601. The operating handle 604 is used to drive the joystick 609 to move within the pump housing 608, and the operating handle 604 is in contact with or fixed to the joystick 609.

In this embodiment, water leakage can be reduced by integrating the nozzle 601, the liquid storage tank 602, the pump 603, the operating handle 604, the first diversion channel 605 and the second diversion channel 606 into one body, and then assembling them to the cleaning machine body. The cleaning machine body does not store liquid, so water will not accumulate in the cleaning machine body, which is conducive to waterproofing of the electrical components inside the cleaning machine body. After being installed on the body shell 100, the nozzle 601 is close to the suction nozzle device 200, and the pump 603 is close to the handle 101. By manually controlling the joystick 609 of the pump 603, the cleaning fluid in the liquid storage tank 602 can be sprayed from the nozzle 601, simplifying It has a unique fluid transport structure and is easy to operate. In addition, the fluid conveying device 600 and the body shell 100 of the cleaning machine are detachable. When the fluid conveying device 600 has a water spray failure, it can be detached from the body shell 100 to facilitate repair or replacement.

Please refer to Figure 36. The nozzle 601 is arranged at the front end of the liquid storage tank 602, and the pump 603 is arranged at the rear end of the liquid storage tank 602. The entire fluid delivery device 600 is elongated. This design makes the layout of each component of the fluid delivery device 600 compact. , and has a large storage space for cleaning fluid, and the appearance is more beautiful when combined with the body shell 100 of the cleaning machine. And this structural design allows the liquid in the liquid storage chamber 607 to be concentrated at the front end and/or the bottom of the liquid storage tank 602 when the fluid delivery device 600 is installed on the body shell 100, thereby maximizing the discharge of cleaning liquid during use.

The first flow guide channel 605 and the second flow guide channel 606 can be defined by hoses, or can be designed integrally with the housing 501. In this embodiment, at least one of the first flow guide channel 605 and/or the second flow guide channel 606 Partially integrated on the liquid storage tank 602. Exemplarily, part of the first flow guide channel 605 is integrated on the liquid storage tank 602 or part of the second flow guide channel 606 is integrated on the liquid storage tank 602, or a part of the first flow guide channel 605 and the second flow guide channel 605 are integrated on the liquid storage tank 602. A portion of the channel 606 is integrated on the liquid storage tank 602 .

In a possible implementation, the first diversion channel 605 includes a first channel defined by a water inlet pipe 612 and a liquid inlet channel 613 integrated on the liquid storage tank 602. The inlet of the liquid inlet channel 613 is located in the liquid storage chamber 607. Inside, the water inlet pipe 612 connects the outlet of the liquid inlet channel 613 and the pump inlet 610. Among them, the liquid inlet channel 613 is defined by a first conduit provided on the liquid storage tank 602, and the first conduit is a hollow conduit; the liquid inlet channel 613 can also be formed by the liquid storage tank 602 and the first wall provided on the liquid storage tank 602. The plates jointly define that a part of the pipe wall of the first conduit is the inner wall of the liquid storage tank 602, and the other part of the pipe wall of the first conduit is the first wall plate. The first wall plate and the liquid storage tank 602 are welded into one body, so that the first wall plate A liquid inlet channel 613 is formed between the plate and the liquid storage tank 602 . Furthermore, the entrance of the liquid inlet channel 613 is close to the front end of the liquid storage tank 602, and maintains a gap 617 with the inner wall of the front end of the liquid storage tank 602. The width of the gap 617 is 3mm-8mm. This structural design can maximize the liquid storage. The cleaning liquid is discharged from the tank 602, and the design of the gap can prevent the entrance of the liquid inlet channel 613 from being blocked by impurities.

In a possible implementation, the second flow guide channel 606 includes a third channel defined by the first water outlet pipe 614, a fourth channel defined by the second water outlet pipe 615, and a liquid outlet integrated on the liquid storage tank 602. Channel 616, the first water outlet pipe 614 connects the pump outlet 611 and the inlet of the liquid outlet channel 616, and the second water outlet pipe 615 connects the outlet of the liquid outlet channel 616 and the nozzle 601. The liquid outlet channel 616 can be defined by a second conduit provided on the liquid storage tank 602, and the second conduit is a hollow conduit; the liquid outlet channel 616 can also be defined by the liquid storage tank 602 and a second wall plate provided on the liquid storage tank 602. It is jointly defined that a part of the pipe wall of the second conduit is the inner wall of the liquid storage tank 602, and the other part of the pipe wall of the second conduit is the second wall plate. The second wall plate and the liquid storage tank 602 are welded into one body, so that the second wall plate A liquid outlet channel 616 is formed between the liquid storage tank 602 and the liquid storage tank 602 .

In a possible implementation, as shown in Figures 38-40, the liquid inlet channel 613 and the liquid outlet channel 616 are integrated on the bottom plate of the liquid storage tank 602 and located in the liquid storage chamber 607; the entrance of the liquid inlet channel 613 There is a gap 617 with the front inner wall of the liquid storage tank 602, and the liquid outlet channel 616 penetrates the front inner wall and the rear end inner wall of the liquid storage tank 602. Integrating some pipe sections of the first diversion channel 605 and the second diversion channel 606 with the liquid storage tank 602 can save water pipe layout space, simplify pipe connections, and avoid problems caused by incomplete installation of water pipes in the water tank after complicated installation. Bend blockage problem.

A water filling port and a water filling plug 619 are provided on the top of the liquid storage tank 602. The water filling port is connected to the liquid storage chamber 607. The water filling plug 619 is rotatably provided on the top of the liquid storage tank 602 to block or expose the water filling port. The water filling plug 619 has a movable end and a fixed end. The movable end of the water filling plug 619 can rotate relative to the fixed end, so that the water filling plug 619 is sealingly connected or separated from the water filling port. The movable end of the water filling plug 619 is provided with a holding portion 623, and the design of the holding portion 591 enables the user to more easily drive the movable end to rotate. The water filling plug 619 is made of elastic material. The fixed end of the water filling plug 619 can be fixed on the top of the liquid storage tank 602 through bonding, nut connection, etc.

Specifically, a positioning post can be provided on the top surface of the water filling plug 619 and/or the liquid storage tank 602, so that the fixed end of the water filling plug 619 and the top surface of the liquid storage tank 602 are connected through the positioning post 638. In a possible implementation, the water filling plug 619 can be fixed on the top of the liquid storage tank 602 through the liquid storage tank cover 621 . Please refer to Figure 41. The top of the liquid storage tank 602 is provided with a liquid storage tank cover 621. The liquid storage tank cover 621 is provided with an operation port 622. The liquid storage tank cover 621 is provided with a positioning post on one side of the operation port 622. 638. The fixed end of the water filling plug 619 passes through the positioning post 638 and is clamped between the liquid storage tank cover 621 and the top surface of the liquid storage tank 602. The movable end of the water filling plug 619 is exposed from the operating port 622, and It can rotate relative to the fixed end in the operating port 622. Referring further to FIG. 37 , the liquid storage tank cover 621 is also provided with a nozzle mounting base 625 , the nozzle 601 is disposed on the nozzle mounting base 625 , and the nozzle 601 is close to the suction nozzle device 200 .

The liquid storage tank 602 or the water filling plug 619 is also provided with an air inlet valve 620, which is connected with the inside of the liquid storage tank and is used to balance the air pressure inside and outside the liquid storage tank. For example, the intake valve 620 may be a duckbill valve. The nozzle 601 is provided with a long elongated ejection port. Designing a smaller ejection port can increase the liquid outlet pressure of the nozzle 601 and make the liquid ejection distance longer, and the elongated ejection port can expand the liquid ejection surface.

The fluid delivery device 600 is detachably connected to the fluid delivery device docking portion 102 on the body shell 100 . Specifically, the fluid delivery device 600 and the fluid delivery device docking portion 102 are detachably connected through a hook assembly. The hook assembly includes a hook element 627 and a receiving element 626. The hook element 627 can be connected or separated from the receiving element 626. The hook element 627 and the receiving element 626 are respectively provided on one of the fluid delivery device 600 and the fluid delivery device docking portion 102 . The receiving element 626 includes a mounting base 628, an elastic member 629, and a release button 630. The release button 630 and the mounting base 628 are detachably connected to the hook member 627 through the elastic member 629. The elastic member 629 may be a spring or a spring. Specifically, one end of the elastic member 629 is connected to the pump 603, and the other end of the elastic member 629 is connected to the release button 630 and holds the release button 630 in the mounting base 628. The mounting base 628 is provided with a first slot, and the release button 630 is A second card slot is provided, and the elastic member 629 can drive the release button 630 to move to bring the second card slot closer to or farther away from the first card slot. When the first card slot and the second card slot are close to each other, the hook element 627 can enter or exit the channel formed by the first card slot and the second card slot. When the first card slot and the second card slot are far away from each other, In this case, the hook element 627 can be limited by the first latching groove and the second latching groove.

In a possible implementation, the receiving element 626 is provided at the bottom of the fluid delivery device 600 , and the fluid delivery device docking portion 102 includes a bearing plate 631 and a hook element 627 . The bearing plate 631 extends from the upper part of the body shell 100 to the body shell 100 . The lower part is inclined, and the hook element 627 protrudes from the bearing plate 631 and is detachably connected to the receiving element 626 of the fluid delivery device 600 . As shown in Figures 37 and 3, the fluid delivery device 600 is provided with two receiving elements 626. The two receiving elements 626 are located on both sides of the fluid delivery device 600. The docking portion 102 of the fluid delivery device is provided with two hook elements. 627, the hook element 627 and the receiving element 626 correspond one to one. As shown in Figure 37, the fluid delivery device 600 has a base 623. The base 623 is connected to the rear end of the liquid storage tank 602. The base 623 is provided with a push rod through hole 633 and two base through holes 634. The two base through holes 634 are symmetrical. Distributed on both sides of the push rod through hole 633. The base 623 is provided with two receiving elements that correspond to the base through holes 634 one-to-one, and the first slots on the receiving elements are aligned with the base through holes 634 . The fluid device docking part 102 is provided with two hook elements 627 , and the hook elements 627 correspond to the receiving elements 626 on the fluid delivery device 600 one-to-one. Press the release button 630 to align the second slot on the release button 630 with the first slot and the base through hole 634. The hook element 627 passes through the base through hole 634 and the first slot into the second slot in sequence. The release button 630 is opened, and the elastic member 629 drives the release button 630 back, so that the second slot is staggered with the first slot, and the hook element 627 is restricted from moving out of the first slot, thereby fixing the fluid delivery device 600 to the body shell 100 superior.

The joystick 609 is driven by an operating handle 604. The operating handle 604 can be arranged on the body shell 100 or fixed on the rear end of the joystick 609. In a feasible implementation, the operating handle 604 is provided on the body shell 100. The operating handle 604 includes a contact shaft 635, a connecting end 636 and an operating end 637. The connecting end 636 and the operating end 637 are connected to form an L shape. The shaft 635 is fixed at the connection between the connecting end 636 and the operating end 637. The connecting end 636 and the abutting shaft 635 of the operating handle 604 are arranged inside the body shell 100. The operating end 637 of the operating handle 604 extends out of the body shell 100 and is located on the handle 101 within the operating area. The rear end of the operating lever 609 extends from the push rod through hole 633 of the base 623 and is connected to the connecting end 636 of the operating handle 604. By lifting the operating end 637 of the operating handle 604, the connecting end 636 rotates forward around the abutment shaft 635. , push the joystick 609 to move into the pump housing 608, thereby changing the volume of the pump chamber defined by the bottom of the pump housing 608 and the front end of the joystick 609, releasing the force applied to the operating handle 604, and the spring returns to the initial state from the deformation state, and The front end of the joystick is pulled back to the preset position.

In addition, the base 623 is connected to the top plate of the liquid storage tank 602 through an annular side plate, so that a space for accommodating the pump 603 is formed between the base 623 and the side plate. The side plate covers the pump 603, thereby protecting the pump 603. Beautify the appearance. The pump 603 includes a pump housing 608 and a joystick 609. The front end of the joystick 609 is connected to the bottom of the pump housing 608 through a spring. After the joystick 609 is pushed into the pump housing 608, the spring can drive the joystick 609 back, and the joystick The length of 609 is greater than the stroke of the front end of the joystick within the pump housing 608 . The front end of the operating lever also has a blocking head and a sealing member. The sealing member is connected to the blocking head. The outer edge of the sealing member fits the inner wall of the pump housing 608 so that a sealed space is formed between the sealing member and the pump housing 608, and the operating During the movement of the front end of the rod 609 in the pump housing 608, the liquid in the pump housing 608 will not flow out along the operating rod 609.

The usage process of the fluid delivery device 600 provided in this embodiment is as follows: open the water filling plug 619, and add cleaning liquid to the liquid storage tank 602 through the water filling port. Cleaning may also include one or more liquids suitable for cleaning, including but not Limited to water, compositions, concentrated detergents, diluted detergents, etc. or mixtures thereof. For example, cleaning can also include a mixture of water and concentrated detergent. Lift up the operating end 637 of the operating handle 604, and the connecting end 636 of the operating handle 604 drives the joystick 609 to move inside the pump housing 608 to discharge the gas in the pump chamber from the nozzle 601. The spring drives the joystick 609 to reset, generating negative pressure in the pump chamber. , causing the cleaning liquid in the liquid storage tank 602 to enter the pump chamber, and repeatedly lifting the operating handle 604. The front end of the joystick 609 compresses the volume of the pump chamber, causing the cleaning liquid in the pump chamber to be ejected from the injection port of the nozzle 601.

This embodiment integrates the liquid storage tank, the nozzle and the pump into one body and then assembles them into the cleaning machine body, thereby avoiding the problem of liquid dripping at the connection between the fluid delivery device and the cleaning machine due to the installation of a water path on the cleaning machine body. Since the cleaning machine body does not store liquid, there will be no water accumulation in the cleaning machine body, which is conducive to waterproofing the internal electrical components of the cleaning machine body.

In one possible implementation, the pump 603 in the fluid delivery device 600 can be an electronic pump. The electronic pump is placed in a suitable place inside the casing 100, such as in the space behind the brush roller 203, and a button controls the electronic pump. Set the handle or other suitable place on the machine body.

The cleaning machine also includes a control device, which is used to connect with each live component of the cleaning machine to control the operation of the cleaning machine. The control device can be electrically coupled with various electrical components in the cleaning machine, including but not limited to, electrically coupled with the impeller drive motor 513 that drives the impeller 512 and the brush roller drive motor 217 that drives the brush roller 215, to control the brush rollers simultaneously or separately. 215 and impeller 512 work. The control device may include one or more controllers, each of which may include buttons, triggers, toggle keys, switches, touch screens, etc., or any combination thereof. In this embodiment, one controller is used to control the power supply to the impeller drive motor 513, and the other controller is used to control the power supply to the brush roller drive motor 217. By operating the controller, suction and brushing can be realized individually or in any combination. Roller 215 rotates.

The power supplied to the impeller driving motor 513 and the brush roller driving motor 217 may be AC power. In this embodiment, there is a power cord connected to the impeller drive motor 513 and the brush roller drive motor 217. The power cord can be extended from the handle of the body shell 100, and the plug of the power cord 106 can be connected to the power jack to obtain power.

In the embodiment shown, the control device can be arranged on the handle 101 of the body shell 100, and the control button 105 of the control device is located on the upper side of the front end of the handle 101, so that the user can conveniently move the thumb while holding the handle 101. to operate control button 105. In addition, the operating handle 604 of the fluid delivery device 600 can be disposed below the front end of the handle 101. While holding the handle 101, the user can conveniently control the outward spraying of the cleaning liquid by hooking the index finger to the operating handle 604.

In the cleaning machine provided in this embodiment, the water vapor separation device 500 is arranged on the front side of the handle 101, and the recovery device 300 is connected to the rear side of the handle 101. The front side of the handle 101 is closer to the center of gravity of the cleaning machine than the rear side of the handle 101. The front side of the fluid delivery device 600 is close to the suction nozzle device 200 , and the rear side of the fluid delivery device 600 is close to the front side of the handle 101 . On the front side of the cleaning machine, the liquid storage tank 602, the suction nozzle device 200 and the water and gas separation device 500 are distributed in a triangle. The liquid storage tank 602, the suction nozzle device 200 and the water and gas separation device 500 are components that account for a large proportion of the mass. The triangle The layout makes the overall structure compact, which helps reduce the size of the cleaning machine and ensures that the center of gravity of the cleaning machine is concentrated on the front side of the whole machine. In this embodiment, the components of the cleaning machine are reasonably arranged so that the overall center of gravity of the cleaning machine is forward. When the user holds the cleaning machine to clean the surface to be cleaned, he only needs to apply a small force to make the suction port 205 contact the surface to be cleaned. Less effort.

Further, the suction nozzle device 200, the flow guide device 400 and the recovery device 300 are arranged in a straight line along the length direction of the cleaning machine. The bottom surface of the body shell 100 forms an included angle with the bottom surface of the recovery device 300 and the bottom surface of the suction nozzle device 200 respectively. When the cleaning machine is supported on the support surface through the bottom surface of the body shell 100, the bottom surface of the recovery device 300 and the suction nozzle The bottom surfaces of the device 200 are all located away from the supporting surface. Specifically, the angle between the bottom surface of the body shell 100 and the bottom surface of the recovery device 300 is 5°˜25°. The included angle between the bottom surface of the body shell 100 and the bottom surface of the suction nozzle device 200 is 15°˜40°. This structural design reduces the contact area between the bottom surface of the cleaning machine and the support surface, making the operation more labor-saving. The design of the suction nozzle device and recovery device tilted to both sides not only maintains the balance of the body, but also allows the suction port to be ventilated and dry. , to avoid odors from the fluid channels inside the cleaning machine.

The fluid conveying device 600 and the recovery device 300 of the cleaning machine have liquid storage functions. The fluid conveying device 600 is used to spray the cleaning liquid stored in the liquid storage tank 602 outwards, and the sewage storage tank 301 of the recovery device 300 is used to collect water and gas separation. obtained liquid. The quality change of the liquid in the liquid storage tank 602 and the dirt storage tank 301 will affect the center of gravity of the cleaning machine. Specifically, when the recovery device 300 does not store liquid, the center of gravity of the cleaning machine is located at the water vapor separation device 500; as the volume of liquid stored in the recovery device 300 increases, the center of gravity of the cleaning machine moves from the water vapor separation device 500 toward the handle. The front side of the 101 moves. When the liquid storage tank 602 containing liquid is installed on the fluid delivery device docking part 102, as the cleaning machine uses the liquid in the liquid storage tank 602 to decrease, the center of gravity of the cleaning machine extends along the extension of the liquid storage tank 602 to the water vapor separation device 500. direction movement.

In the usage scenario, when the user holds the handle 101 and uses or picks up the cleaning machine, the center of gravity of the cleaning machine is located between the gripping part of the handle 101 and the suction nozzle device 200 . As the volume of liquid stored in the recovery device 300 increases, the center of gravity of the cleaning machine moves toward the gripping portion of the handle 101 .

In the cleaning machine provided by this embodiment, the water and gas separation device is arranged on the front side of the handle, and the recovery device is arranged on the rear side of the handle, which can ensure the balance of the cleaning machine while making the cleaning machine naturally lean forward, which can not only ensure the front suction nozzle The vacuum degree of the device's suction port also makes the use of the cleaning machine more labor-saving. In addition, since the recovery device is rear-mounted, there are few restrictions on the design of the recovery device, which is beneficial to increasing the waste storage capacity of the recovery device.

Combined with Figure 26-Figure 27, the working process of the cleaning machine is as follows:

The user holds the handle 101 of the cleaning machine, places his thumb on the control button 105 on the handle 101 , hooks the index finger and/or middle finger on the operating handle 604 , and exerts force on the operating handle 604 with the index finger and/or middle finger to bring the operating handle 604 closer to the handle 101 , the connecting end 636 of the operating handle 604 rotates with the abutment shaft 635 as the fulcrum to squeeze the joystick 609, pushing the front end of the joystick toward the inside of the pump housing 608, squeezing the cleaning liquid in the pump, and causing the cleaning liquid to be sprayed from the nozzle 601 on a clean surface. Move the suction port 205 of the cleaning machine to the cleaning surface, and press the control button 105 to start the impeller drive motor 513 and the brush roller drive motor 217. The impeller drive motor 513 drives the impeller 512 to rotate so that the suction port 205, air guide duct 204, and air inlet The fluid channel formed by the passage 401, the air inlet duct 302, the air outlet 303, the dirt storage chamber 304, the return air channel 402, the separation chamber 509, the isolation chamber 506 and the air outlet 325 are connected in sequence to generate negative pressure, which draws the air near the suction port 205 Liquid and debris are sucked into the suction port 205 along with air. The brush roller drive motor 217 drives the brush roller 215 to rotate. The scraper blades and/or bristles on the brush roller 215 stir the surface to be cleaned, making it easier for the liquid and debris on the cleaning surface to be sucked into the suction port. 205.

After the fluid carrying the liquid and debris enters the suction port 205, it passes through the air duct 204, the air inlet channel 401 and the air inlet duct 302 in sequence and then reaches the sewage storage tank 301. Most of the liquid and debris are deposited in the lower part of the sewage storage tank 301, and the process is completed. The first water-vapor separation. The separated fluid enters the separation chamber 509 through the air outlet duct 303 and the return air channel 402 in sequence. Under the action of the centrifugal force generated by the rotation of the impeller 512, the liquid in the fluid is thrown on the inner wall of the casing and flows along the casing 501. The inner wall merges into the guide groove 537, enters the air inlet channel 401 through the return pipe connected with the guide groove 537, and is sucked back into the sewage storage chamber 304, completing the second water and gas separation. The separated fluid further passes through the isolation member 503, isolation cavity 506, wind shielding mechanism 508, casing air outlet 507 and casing air outlet 104, and is discharged from the cleaning machine. During this process, the fluid is affected by the isolation member 503 and the inner wall of the isolation cavity 506. And the blocking effect of the wind shielding mechanism 508 causes the liquid in the fluid to condense on the isolation member 503, the inner wall of the isolation cavity 506 and the wind shielding mechanism 508, and further converge into the guide groove 537 in the separation cavity 509, and along the return pipe Entering the air inlet channel 401, the third water and gas separation is completed. In this embodiment, after three water and gas separations, the water and gas separation effect is improved, and the liquid content in the fluid discharged from the cleaning machine is greatly reduced.

When the cleaning machine of this embodiment is used on an inclined surface, the liquid in the sewage storage tank 301 may be concentrated in the front, rear, upper or even lower parts of the sewage storage tank 301 due to the outlet of the air inlet duct 302 and the air inlet duct 303 The entrances are located in the upper middle area of the dirt storage tank 301, and are kept at a certain distance from the inner walls of the dirt storage tank 301, so that the cleaning machine can be used at any angle without allowing the liquid in the dirt storage tank 301 to easily enter the air inlet. The pipe 302 or the air outlet pipe 303 is conducive to reducing liquid accumulation in the separation chamber 509 and the isolation chamber 506, and improving the safety of the impeller drive motor 513. Furthermore, even if the liquid content of the fluid in the separation chamber and the isolation chamber is large or water accumulates temporarily, since the impeller drive motor 513 and the live parts of the impeller 512 are waterproofed, water can be prevented from entering the impeller drive motor 513. In addition, by arranging a plurality of water return holes along the circumferential direction in the guide groove 537, the liquid in the guide groove 537 can be introduced into the air inlet channel 401 when the cleaning machine is used at an angle.

After cleaning, press the control button 105 to stop the impeller driving motor 513 and the brush roller driving motor 217. Remove the recovery device 300 from the cleaning machine, unplug the drain plug 317, and pour out the liquid in the dirt storage tank 301 to complete the dirt treatment.

The technical features of the above embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.

The above-mentioned embodiments only express several implementation modes of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the patent of the present invention should be determined by the appended claims.

Claims

A cleaning machine that is safe to use at multiple angles. It is characterized in that the cleaning machine includes a body shell (100), a suction nozzle device (200), a recovery device (300) and a water and gas separation device (500). The suction nozzle The device (200) is used to absorb dirt and surrounding air from the surface to be cleaned, make the dirt and the air form a fluid, and guide the fluid to the recovery device (300). The dirt includes liquid and solid , the recovery device (300) is used to intercept the solids and at least part of the liquid in the fluid, and the water and gas separation device (500) is used to perform liquid-gas separation on the fluid intercepted and treated by the recovery device (300). separation;

The suction nozzle device is arranged at the front end of the body shell (100), the water vapor separation device (500) is set inside the body shell, and the recovery device (300) is respectively connected with the water vapor separation device (500). 500) is in fluid communication with the suction nozzle device (200), the recovery device (300) is in fluid communication with the suction nozzle device (200) through a fluid inflow channel, and the recovery device (300) is separated from the water vapor The device (500) is in fluid communication via the fluid outflow channel;

The recovery device (300) includes a dirt storage tank (301), an air inlet pipe (302) and an air outlet pipe (303). A dirt storage chamber (304) is formed inside the dirt storage tank (301). The dirt tank (301) is provided with an air inlet (305) and an air outlet (306) of the dirt storage tank, and the air inlet pipe (302) and the air outlet pipe (303) are provided in the dirt storage chamber. (304); the inlet of the air inlet pipe (302) is connected to the external fluid through the air inlet (305) of the dirt storage tank, and is used to guide the external fluid to the dirt storage chamber (304) to make the fluid in the At least part of the liquid is deposited in the dirt storage chamber (304); the outlet of the air outlet pipe (303) is connected to the outside of the recovery device (300) through the air outlet (306) of the dirt storage tank for recycling The fluid separated from water and gas in the dirt storage chamber (304) is guided to the outside of the recovery device (300); the outlet of the air inlet pipe (302) and the inlet of the air outlet pipe (303) are both located in the The middle area of the dirt storage chamber (304) maintains a distance from the inner wall of the dirt storage tank (301).
The cleaning machine according to claim 1, characterized in that when the cleaning machine is used at any angle, the safe volume of the dirt storage chamber (304) is not less than 0.1 times the total volume of the dirt storage chamber (304). ,

The safety volume refers to the amount of liquid that can be stored in the sewage storage tank (301) when the liquid level does not exceed either the outlet of the air inlet duct (302) or the inlet of the air outlet duct (303). Maximum volume of liquid stored.
The cleaning machine according to claim 2, characterized in that the recovery device (300) has a variety of usage postures as the usage angle of the cleaning machine changes, and the usage postures at least include a horizontal usage posture, an upright usage posture and Use the posture upside down,

When the recovery device (300) is in a horizontal use posture, the ratio of the safe volume of the dirt storage chamber (304) to the total volume of the dirt storage chamber (304) is 0.4-0.6.

When the recovery device (300) is in the upright use posture, the ratio of the safe volume of the dirt storage chamber (304) to the total volume of the dirt storage chamber (304) is 0.4-0.6.

When the recovery device (300) is in an inverted use posture, the ratio of the safe volume of the dirt storage chamber (304) to the total volume of the dirt storage chamber (304) is 0.1-0.3.
The cleaning machine according to claim 1, characterized in that the air inlet duct (302) and the air outlet duct (303) both extend from the lower part of the dirt storage chamber (304) to the dirt storage chamber (304). 304) upper extension.
The cleaning machine according to claim 1, characterized in that the air inlet (305) and the air outlet (306) of the dirt storage tank are provided on the front end or bottom surface of the dirt storage tank (301). , the front end surface is connected to the bottom surface.
The cleaning machine according to claim 1, characterized in that both the air inlet duct (302) and the air outlet duct (303) include at least a section of straight pipe or bent pipe.
The cleaning machine according to claim 1, characterized in that the outlet of the air inlet duct (302) is opened on the side of the air inlet duct (302) or at the end of the air inlet duct (302), and the The inlet of the air outlet duct (303) is opened on the side of the air outlet duct (303) or at the end of the air outlet duct (303).
The cleaning machine according to claim 7, characterized in that the outlet of the air inlet duct (302) and the entrance of the air outlet duct (303) are separated by a wind blocking rib (307), and the The air rib (307) is provided at the outlet of the air inlet duct (302) and/or the inlet of the air outlet duct (303);

The wind-shielding rib (307) includes a first isolation portion (308) located between the outlet of the air inlet duct (302) and the inlet of the air outlet duct (303). .
The cleaning machine according to claim 8, characterized in that the wind blocking rib (307) further includes a second isolation part (309) connected to both sides of the first isolation part (308), and the second isolation part (309) is connected to both sides of the first isolation part (308). The isolation portion (309) extends in a direction away from the outlet of the air inlet duct (302) or the inlet of the air outlet duct (303).
The cleaning machine according to claim 9, characterized in that the wind blocking rib (307) is at least 5mm higher than the entrance of the air outlet pipe (303);

Preferably, a windshield mechanism (310) is provided at the outlet of the air inlet duct (302) and/or the entrance of the air outlet duct (303), and the windshield mechanism (310) includes:

Windshield (311), the windshield (311) is provided with an opening (312), and the windshield (311) is sleeved on the outlet and/or of the air inlet pipe (302). In the case of the inlet of the air outlet duct (303), the opening (312) communicates with the outlet of the air inlet duct (302) and/or the inlet of the air outlet duct (303);

A windshield (313) is movably connected to the windshield seat (311) to open or cover the opening (312);

Preferably, the windshield (313) is accommodated in the opening (312). The windshield (313) has a movable part (314) and a fixed part (315). The windshield (313) ) is connected to the edge of the opening (312), and there is a gap between the movable part (314) of the windshield (313) and the edge of the opening (312). The movable part (314) of the piece (313) can rotate relative to the fixed part (315) to cover or expose the opening (312);

Preferably, the windshield (313) is made of soft rubber, and the thickness of the movable part (314) is smaller than the thickness of the fixed part (315);

Preferably, the outlet of the air inlet duct (302) is adjacent to the inlet of the air outlet duct (303), and the windshield mechanism (310) provided at the outlet of the air inlet duct (302) is connected to the windshield mechanism (310) provided at the outlet of the air inlet duct (302). The windshield mechanism (310) at the entrance of the air outlet pipe (303) is integrated into one body;

Preferably, the air inlet (305) of the dirt storage tank and the air outlet (306) of the dirt storage tank are located at the lower part of the dirt storage tank (301);

Preferably, the sewage storage tank (301) is also provided with a sewage outlet (316) and a drainage plug (317). The sewage outlet (316) is connected to the sewage storage chamber (304), and the drainage plug (317) ) Detachably connect the sewage storage tank (301) to block or open the sewage outlet (316);

Preferably, the angle between the air inlet pipe (302) and the air outlet pipe (303) and the bottom of the sewage storage tank (301) is 25° to 35°;

Preferably, the outlet of the air inlet pipe (302) has a first left endpoint (318) and a first right endpoint (319);

The distance from the first left endpoint (318) to the left wall of the sewage storage tank (301) in the same cross-section as the first left endpoint (318) is the first left spacing, and the The distance from a right endpoint (319) to the right wall of the dirt storage tank (301) in the same cross-section as the first right endpoint (319) is the first right spacing, and the first left spacing is The ratio of the first right spacing is 0.6-0.8;

Preferably, the outlet of the air inlet pipe (302) has a first top endpoint (320) and a first bottom endpoint (321);

The distance from the first top endpoint (320) to the top wall of the sewage storage tank (301) with the same cross-section as the first top endpoint (320) is the first upper distance, and the first bottom endpoint (321) The distance from the bottom wall of the sewage storage tank (301) with the same cross-section as the first bottom end point (321) is the first lower spacing, and the first upper spacing is the same as the first lower spacing. The ratio of spacing is 0.1-0.9;

Preferably, the outlet of the air inlet pipe (302) has a first front endpoint (322) and a first rear endpoint (323);

The distance from the first front endpoint (322) to the front side wall of the sewage storage tank (301) in the same longitudinal section as the first front endpoint (322) is the first front spacing, and the first front distance is The distance from a rear endpoint (323) to the rear side wall of the dirt storage tank (301) in the same longitudinal section as the first rear endpoint (323) is the first rear spacing, and the first front spacing The ratio to the first rear spacing is 0.6-0.8;

Preferably, the inlet of the air outlet pipe (303) has a second left endpoint (324) and a second right endpoint (325);

The distance from the second left endpoint (324) to the left wall of the sewage storage tank (301) in the same cross-section as the second left endpoint (324) is the second left spacing. The distance from the two right endpoints (325) to the right wall of the dirt storage tank (301) in the same cross-section as the second right endpoint (325) is the second right spacing, and the second left spacing is The ratio of the second right spacing is 0.6-0.8;

Preferably, the inlet of the air outlet pipe (303) has a second top endpoint (326) and a second bottom endpoint (327);

The distance from the second top endpoint (326) to the top wall of the sewage storage tank (301) with the same cross-section as the second top endpoint (326) is the second upper distance, and the second bottom endpoint (327) The distance from the bottom wall of the sewage storage tank (301) with the same cross-section as the second bottom end point (327) is the second lower spacing, and the second upper spacing is the same as the second lower spacing. The ratio of spacing is 0.1-0.9;

Preferably, the inlet of the air outlet pipe (303) has a second front endpoint (328) and a second rear endpoint (329);

The distance from the second front endpoint (328) to the front side wall of the sewage storage tank (301) in the same longitudinal section as the second front endpoint (328) is the second front distance, and the second front distance is The distance from the two rear end points (329) to the rear side wall of the sewage storage tank (301) in the same longitudinal section as the second rear end point (329) is the second rear spacing, and the second front spacing The ratio to the second back spacing is 0.6-0.8;

Preferably, the sewage storage tank (301) is generally in a rectangular parallelepiped structure;

Preferably, the volume of the dirt storage chamber (304) is 800cm 3 -1350cm 3 ;

Preferably, the first left spacing is 23mm-53mm, the first right spacing is 23mm-53mm, the first upper spacing is 10mm-40mm, the first lower spacing is 18mm-48mm, and the first right spacing is 10mm-40mm. The first front spacing is 77mm-167mm, and the first rear spacing is 20mm-80mm;

Preferably, the second left spacing is 23mm-53mm, the second right spacing is 23mm-53mm, the second upper spacing is 10mm-40mm, the second lower spacing is 18mm-48mm, and the second upper spacing is 18mm-48mm. The second front spacing is 77mm-167mm, and the second rear spacing is 20mm-80mm;

Preferably, the cross-sectional width of the air inlet duct (302) and the air outlet duct (303) is 13.5mm-28.5mm;

Preferably, the recovery device (300) and the body shell (100) are detachably connected through a buckle assembly. The buckle assembly includes a buckle element (330) and a receiving element (331). The buckle element (330) can be connected or separated from the receiving element (331). The buckling element (330) and the receiving element (331) are respectively provided on the recovery device (300) and the body shell (100). on one of;

Preferably, the buckle element (330) is provided on the recovery device (300), including a buckle (332) and a disassembly button (333) installed on the dirt storage tank (301). The button (333) can drive the buckle (332) to move into or out of the receiving element (331);

Preferably, the recovery device (300) and the body shell (100) are detachably connected through an overlapping assembly. The overlapping assembly includes an overlapping element (334) and a supporting element (335). The element (334) has an accommodation space, and the support element (335) can enter or exit the accommodation space. The overlapping element (334) and the support element (335) are respectively arranged on the recovery device (300) and on one of the main bodies of the cleaning machine;

Preferably, the overlapping element (334) is provided on the sewage storage tank (301) and is located below the air inlet (305) of the sewage storage tank and the air outlet (306) of the sewage storage tank;

Preferably, the water and gas separation device (500) includes a housing (501) and a fan assembly (502); the housing (501) is provided with an isolation piece (503), and the isolation piece (503) separates the The housing (501) is divided into an upper housing (504) and a lower housing (505). The upper housing (504) has an isolation cavity (506), a housing air outlet (507) and a wind shielding mechanism (508). ), the housing air outlet (507) is in fluid communication with the isolation cavity (506), the wind blocking mechanism (508) is provided on the air inlet side of the housing air outlet (507), and the lower housing The body (505) has a separation cavity (509), a housing air inlet (510) and a water return hole (511). The separation cavity (509) and the isolation cavity (506) pass through the isolation member (503). The drainage structure is fluidly connected, the housing air inlet (510) connects the separation chamber (509) and the fluid outflow channel, and the water return hole (511) connects the separation chamber (509) and the fluid Inflow channel; the fan assembly (502) includes an impeller (512) and an impeller drive motor (513). The impeller (512) is disposed in the separation chamber (509). The main body of the impeller drive motor (513) It is arranged in the isolation cavity (506), and the output shaft (514) of the impeller drive motor (513) passes through the isolation piece (503) and is connected to the impeller (512);

Preferably, the drainage structure is close to the inner wall of the housing (501) and away from the impeller drive motor (513), and is used to allow the fluid from the separation chamber (509) to pass through the isolation member (503). ) rises along a path close to the inner wall of the housing (501) and away from the impeller drive motor (513);

The wind blocking mechanism (508) is connected to the inner wall of the housing (501) and is on the ascending path of the fluid from the separation chamber (509) moving to the housing air outlet (507), for intercepting Liquid in the fluid rising along the inner wall of the housing (501);

Preferably, the wind shielding mechanism (508) includes a first wind shield (515) arranged above the casing air outlet (507), and a second wind shield arranged below the casing air outlet (507). The wind plate (516) and the bracket (517) connecting the first wind shield (515) and the second wind shield (516), the first wind shield (515) and the second wind shield An air outlet (518) is formed between the air plates (516), and the air outlet (518) is opposite to the casing air outlet (507) on the casing (501);

Preferably, the first wind shield (515) has a first wind shield outer edge (519) facing the inner wall of the housing (501) and a first wind shield facing the impeller drive motor (513). The inner edge (520), the outer edge (519) of the first windshield is connected to the inner wall of the housing (501), and the inner edge (520) of the first windshield has a drive motor (513) that drives the impeller. ) first windshield skirt (521) extending from the top;

The second windshield (516) has a second windshield outer edge (522) facing the inner wall of the housing (501) and a second windshield inner edge (522) facing the impeller drive motor (513). 523), the outer edge of the second windshield (522) is connected to the inner wall of the housing (501), and the inner edge of the second windshield (523) has a third protrusion extending toward the isolation member (503). Second windshield (524);

Preferably, the output shaft (514) of the impeller drive motor (513) passes through the isolation member (503) and is connected to the impeller (512);

The isolation member (503) includes an inner frame (525), an outer frame (526) and at least two isolation blades (527). The outer frame (526) is connected to the inner wall of the housing (501). The inner frame (525) is located in the outer frame (526), and the isolation blade (527) connects the inner frame (525) and the outer frame (526). The adjacent isolation blade (527) is connected to the outer frame (526). The projections on the plane perpendicular to the rotation axis of the output shaft (514) overlap;

Preferably, the outer frame (526) includes a water guide plate (532) extending from the inner wall of the casing (501) to the center of the casing (501) and a water guide plate (532) extending from the water guide plate (532) to the center of the casing (501). A water baffle (533) extends from the separation chamber (509), and the side of the water guide plate (532) facing the isolation chamber (506) extends from the housing (501) to the center of the housing (501) The direction is inclined from the isolation chamber (506) to the separation chamber (509), and a water-blocking space (534) is formed between the water-blocking plate (533) and the inner wall of the housing (501);

Preferably, the bottom of the housing (501) includes an impeller chamber (535), a guide plate (536) and a guide groove (537) from the center outward; the housing air inlet (510) is provided on the At the bottom of the impeller chamber (535), the water return hole (511) is opened at the bottom of the guide groove (537); the guide plate (536) is located below the isolation member (503) and toward the direction. The isolation piece (503) protrudes, the guide groove (537) is located below the water blocking space (534), and a passage is formed between the water blocking plate (533) and the guide plate (536). flow channel(538);

The impeller (512) includes an impeller air inlet (539) provided at the bottom of the impeller (512) and an impeller air outlet (540) provided at the upper part of the impeller (512). The lower part of the impeller (512) accommodates In the impeller chamber (535), the upper part of the impeller (512) is higher than the guide plate (536), and the impeller air inlet (539) is connected with the casing air inlet (510), so The impeller air outlet (540) is opposite to the flow passage (538);

Preferably, the guide groove (537) is an annular groove surrounding the guide plate (536), and a plurality of return holes (511) are provided along the circumferential direction in the guide groove (537);

Preferably, the side of the lower end of the water baffle (533) opposite to the impeller air outlet (540) is provided with an inclined surface inclined toward the guide groove (537); the guide plate (536) faces the isolation One side of the blade (527) is inclined from the guide groove (537) to the impeller chamber (535);

Preferably, the inner frame (525) is provided with a spacer shaft hole (545), the impeller (512) is provided with an impeller shaft hole (546), and the output shaft (514) of the impeller drive motor (513) ) passes through the isolator shaft hole (545) and then enters the impeller shaft hole (546);

The end of the output shaft (514) is covered with an impeller insert (547), and the lower part of the impeller insert (547) is accommodated in the impeller shaft hole (546). The impeller insert (547) The upper part is received in the spacer shaft hole (545),

There is also a sealing ring (548) between the impeller insert (547) and the isolator shaft hole (545). The upper part of the sealing ring (548) is in contact with the bearing (513) of the impeller driving motor (513). 549) Sealing connection, the lower part of the sealing ring (548) is in contact with the upper part of the impeller insert (547), the sealing ring (548) and the impeller insert (547) are made of insulating materials;

Preferably, the cleaning machine further includes a flow guide device (400), the flow guide device (400) is housed inside the body shell (100), and the flow guide device (400) is located on the water surface. Below the gas separation device (500),

The fluid inflow channel includes an air inlet channel (401), the fluid outflow channel includes a return air channel (402), and the air inlet channel (401) and the return air channel are integrated into the air guide device (400) ;

Preferably, the nozzle device (200) includes a nozzle cover (201), a nozzle bottom plate (202), a brush roller (203) and an air duct (204). The brush roller (203) is provided with On the suction nozzle bottom plate (202), the suction nozzle cover (201) is provided at the front end of the brush roller (203), and the air guide duct (204) extends from the brush roller (203) The front end extends to the rear end of the brush roller (203) and is located between the brush roller (203) and the body shell (100). The suction nozzle cover (201) has a suction port (205) , the inlet of the air guide duct (204) is in fluid communication with the suction port (205), and the outlet of the air guide duct (204) is in fluid communication with the air inlet channel (401); when the cleaning machine is in use In the holding and placing state, the distance between the air duct (204) and the farthest point of the plane where the bottom surface of the body shell (100) is located is greater than the distance between the air inlet channel (401) and the bottom surface of the body shell (100). The distance from the farthest point of the plane;

Preferably, the distance between the farthest point of the air guide duct (204) and the plane of the bottom surface of the body shell (100) is greater than the distance between the outlet of the air inlet duct (302) and the plane of the bottom surface of the body shell (100). distance;

Preferably, the air guide duct (204) includes a first air guide duct (206) and a second air guide duct (207), and the inlet of the first air guide duct (206) is connected with the suction port (205). , the outlet of the first air guide duct (206) is connected to the inlet of the second air guide duct (207), and the outlet of the second air guide duct (207) is connected to the air inlet channel (401) ;

Preferably, the suction port (205), the air guide duct (204), the air inlet channel (401) and the air inlet duct (302) are connected in sequence to form a fluid entry path, and the air guide duct (302) A liquid storage chamber (209) is provided at the outlet of 204), and the liquid storage chamber (209) is located outside the fluid entry path; and in the use state and handling state of the cleaning machine, the liquid storage chamber (209) (209) is located below the air guide duct (204), the air inlet channel (401) and the air inlet duct (302);

Preferably, the flow guide device (400) includes a flow guide base (407) and a partition (408):

The front end of the diversion base (407) is provided with a base inlet, the rear end of the diversion base (407) is provided with a base outlet, and the inside of the diversion base (407) is provided with a base connecting the There is a hollow channel between the base inlet and the base outlet. The top of the guide base (407) is provided with an air guide port (409) that communicates with the hollow channel. The air guide port (409) is connected to the water The gas separation device is connected;

The partition (408) is arranged in the hollow channel, and one end of the partition (408) is connected to the inner wall of the hollow channel and is located between the base inlet and the base outlet. The other end of the partition (408) surrounds the air guide opening (409) and then extends to the base outlet and divides the base outlet into a first base outlet (410) and a second base outlet (411). ), the base inlet communicates with the first base outlet (410) to form the air inlet channel (401), and the second base outlet (411) communicates with the air guide opening (409) to form the air inlet channel (401). Constitute the return air channel (402);

Preferably, the ratio of the area of the return air passage (402) to the area of the inlet air passage (401) is 0.8-1.2;

Preferably, the air guide device (400) also includes a joint cover (413), and the joint cover (413) is provided with an air inlet joint (414) and a return air joint (415). (413) is provided at the rear end of the guide base (407) and covers the base outlet. The partition (408) is connected to the joint cover (413) and is located at the air inlet joint (413). 414) and the return air outlet joint (415), the air inlet joint (414) connects the first base outlet (410) and the dirt storage tank air inlet (414) of the recovery device (300) 305), the return air outlet joint (415) connects the second base outlet (411) and the dirt storage tank air outlet (306) of the recovery device (300);

Preferably, the base inlet of the air guide base (407) is provided with a first connecting part (416), and the first connecting part (416) is connected to the air guide tube (204) of the suction nozzle device (200). ) outlet is connected, and the base outlet of the flow guide base (407) is provided with a second connecting portion (417), and the second connecting portion (417) is connected to the joint cover plate (413);

The height of the first connecting part (416) and the height of the second connecting part (417) are both greater than the height of the flow guide base (407), so that at the top of the flow guide base (407) A concave accommodation part (418) is formed on the surface, and the lower part of the water and gas separation device is located in the accommodation part (418);

Preferably, the upper part of the body shell (100) has a handle (101), the water and gas separation device is arranged on the front side of the handle (101), and the recovery device (300) is connected to the handle (101) The rear side of the recovery device (300) when no liquid is stored is located between the suction nozzle device (200) and the front side of the handle (101);

Preferably, the cleaning machine further includes a fluid conveying device (600). The upper part of the body shell (100) is provided with a fluid conveying device docking portion (102). At least some components in the fluid conveying device (600) are connected to the fluid conveying device (600). The docking part (102) of the fluid delivery device is detachably connected, the front side of the fluid delivery device (600) is close to the suction nozzle device (200), and the rear side of the fluid delivery device (600) is close to the handle The front side of (101);

Preferably, the fluid delivery device (600), the suction nozzle device (200) and the water and gas separation device are distributed in a triangle;

Preferably, the suction nozzle device (200), the flow guide device (400) and the recovery device (300) are arranged in a straight line;

Preferably, the center of gravity of the cleaning machine when there is no liquid storage is located at the water and gas separation device;

Preferably, the bottom surface of the body shell (100) forms an included angle with the bottom surface of the recovery device (300) and the bottom surface of the suction nozzle device (200) respectively. When the bottom surface supports the cleaning machine on the support surface, the bottom surface of the recovery device (300) and the bottom surface of the suction nozzle device (200) are both located away from the support surface.