CN221511772U - Cleaning robot capable of preventing water from entering fan - Google Patents

Abstract

The utility model discloses a cleaning robot for preventing a fan from water inflow, which belongs to the technical field of cleaning equipment and comprises a machine body provided with a sewage suction port and a sewage box arranged in the machine body, wherein the sewage box comprises the sewage suction fan and a sewage box provided with an air outlet, the air outlet is in butt joint communication with the sewage suction fan through an air inlet channel, a support arranged on one side of the outer wall of the air inlet channel is arranged in the machine body, an opening and closing switching assembly for opening and closing the air inlet channel is arranged on the support, the opening and closing switching assembly comprises an air door baffle and a driving piece, the driving piece is fixed on the support, the air door baffle is movably connected on the support, the air door baffle is provided with a blocking state extending into the air inlet channel and a avoiding state exiting from the air inlet channel, and the driving piece drives the air door baffle to switch between the blocking state and the avoiding state. The switching assembly is matched with the sewage suction fan, and the switching assembly can not influence the structure and the disassembly of the sewage box, so that the structure difficulty of the sewage box is simplified, and the difficulty of the user in disassembling and assembling the sewage box is reduced.

Description

Cleaning robot capable of preventing water from entering fan

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a cleaning robot capable of preventing water from entering a fan.

Background

As one of intelligent household cleaning appliances, a cleaning robot plays an increasingly important role in the daily life of people. In order to improve the cleaning effect, the current cleaning robot product is integrated with the wet wiping function of the handheld floor cleaning machine, the cleaning robot is provided with a rolling brush, a water purifying box, a scraping piece, a sewage box, a fan and other components, when the cleaning robot works, the water purifying box supplies water to the rolling brush to enable the rolling brush to wet the ground after absorbing liquid, the scraping piece scrapes and extrudes the rolling brush which rotates, and the scraped and extruded sewage is sucked into the sewage box under the pumping action of the fan. In order to prevent the blower from water inflow, a HEPA or sponge is generally arranged at the air inlet of the blower.

When a user inverts the cleaning robot to clean the sewage box under the condition that the sewage box is filled with water, sewage in the sewage box easily flows back into the fan to cause the damage of water inflow of the fan. In order to overcome the defect, the utility model patent with publication number CN218186635U discloses that a first valve and a second valve are respectively arranged at a first opening and a second opening of the sewage box, and when the cleaning equipment stops working and/or leaves the ground, the driving mechanism drives the two valves to respectively close the corresponding openings. In this structure, because the valve and the actuating mechanism for driving the valve are both disposed on the sewage box, disassembly of the sewage box is not facilitated, and when the temperature is high, condensed water is easily present on the surfaces of the sewage box and the water pipe, which also may cause adverse effects on the electrical components of the actuating mechanism.

Disclosure of utility model

In order to solve the defects and shortcomings in the prior art, the utility model provides the cleaning robot for preventing the water from entering the fan, the opening and closing switching assembly is matched with the air inlet channel, the opening and closing switching assembly cannot influence the structure and the disassembly of the sewage box, the structure difficulty of the sewage box is facilitated to be simplified, and the difficulty of the user in disassembling the sewage box is reduced.

In order to achieve the technical purpose, the cleaning robot capable of preventing water from entering the fan comprises a machine body and a sewage sucking assembly arranged in the machine body, wherein the sewage sucking assembly comprises a sewage sucking fan and a sewage box provided with an air outlet, the air outlet is in butt joint communication with the sewage sucking fan through an air inlet channel, a support arranged on one side of the outer wall of the air inlet channel is arranged in the machine body, an opening and closing switching assembly used for opening and closing the air inlet channel is arranged on the support, the opening and closing switching assembly comprises an air door baffle and a driving piece, the driving piece is fixed on the support, the air door baffle is movably connected on the support, the air door baffle is provided with a blocking state extending into the air inlet channel and a avoiding state exiting from the air inlet channel, and the driving piece drives the air door baffle to switch between the blocking state and the avoiding state.

Preferably, an air inlet shell is arranged between the sewage box and the sewage suction fan, the air inlet channel is formed by encircling the air inlet shell, and the air inlet shell is provided with a notch for the air door baffle to extend into or withdraw from the air inlet channel.

Preferably, the air inlet shell is provided with a convex ring which protrudes outwards around the notch, and the convex ring is positioned at the periphery of the air door baffle.

Preferably, the switching assembly comprises two first in-place switches and second in-place switches which are arranged on the bracket at intervals, wherein the first in-place switches are triggered when the air door baffle is switched to the blocking state, and the second in-place switches are triggered when the air door baffle is switched to the avoiding state.

Preferably, the cleaning robot comprises a main control module arranged in the machine body, the driving piece is controlled by the main control module, the switching assembly comprises a micro-control board arranged on the support, and the first in-place switch and the second in-place switch are arranged on the micro-control board.

Preferably, the switching component comprises a transmission structure arranged between the driving piece and the air door baffle, and the driving piece drives the air door baffle to switch states through the transmission structure.

Preferably, the transmission structure is a lifting transmission structure.

Preferably, the transmission structure comprises a screw rod and a transmission block sleeved on the screw rod through threaded fit, the transmission block is connected with the air door baffle, and the driving piece drives the air door baffle to switch states through the screw rod and the transmission block.

Preferably, the switching assembly and/or the air inlet channel are/is provided with a sealing structure, so that the air door baffle in a blocking state is kept in sealing fit with the inner wall of the air inlet channel.

Preferably, the air outlet is arranged at the upper part of the sewage box, the air inlet channel is arranged at the top of the sewage suction fan, and the switching component is arranged at the bottom of the air inlet channel.

After the technical scheme is adopted, the utility model has the following advantages:

1. According to the cleaning robot provided by the utility model, the opening and closing switching assembly is arranged in the machine body, and the driving piece drives the air door baffle to switch between the blocking state and the avoiding state. When the air door baffle stretches into the air inlet channel, the air inlet channel and the air outlet are separated by the air door baffle, so that the condition that the sewage in the sewage box is led to the sewage suction fan to be damaged by water inlet of the sewage suction fan through the air outlet and the air inlet channel is avoided, and the stability of the working performance of the sewage suction fan is ensured. Because switching subassembly sets up on being located the support of air inlet channel outside to, the air door baffle is used for opening or shutoff air inlet channel, does not have direct cooperation relation between switching subassembly and the sewage box, and switching subassembly can not cause the influence to the structure and the dismouting of sewage box, the structure degree of difficulty of being convenient for simplify the sewage box and the degree of difficulty of reduction user dismouting sewage box. In addition, the electric element of the switching component can be separated from the sewage box, so that adverse effect of condensed water formed on the surface of the sewage box on the electric element of the switching component can be avoided, and the stability of the working performance of the switching component is ensured.

2. An air inlet shell is arranged between the sewage box and the sewage suction fan, an air inlet channel is formed by encircling the air inlet shell, an air door baffle extends into or withdraws from the air inlet channel through a notch arranged on the air inlet shell, and a matching structure between the air door baffle and the air inlet shell is reasonably arranged, so that the air door baffle can not interfere with the disassembly and assembly of the sewage box and the butt joint matching between the sewage box and the air inlet shell.

3. The air inlet shell is provided with the convex ring which is outwards protruded around the notch, the part of the air door baffle is inserted into the convex ring, the convex ring has a guiding effect on the moving air door baffle, so that the air door baffle switched to the blocking state from the avoiding state can smoothly extend into the air inlet channel from the notch, and the smoothness of state switching of the air door baffle is improved.

4. When the damper is switched to the blocking state, the first in-place switch is triggered, and the driving piece stops driving. When the damper is switched to the avoiding state, the second in-place switch is triggered, and the driving piece stops driving. The movable travel of the air door baffle plate in the switching state is limited by the two in-place switches, so that the air door baffle plate in the avoiding state can withdraw from the air inlet channel as far as possible to ensure the communication area between the air inlet channel and the air outlet, and the air door baffle plate in the blocking state can effectively block the air inlet channel and the air outlet, thereby ensuring the blocking effect of the air door baffle plate on backflow sewage when the cleaning robot is large in inclination range or inverted.

5. The two in-place switches are preferably arranged on the micro-control board, the micro-control board is electrically connected to the main control module of the cleaning robot, signals of the two in-place switches are fed back to the main control module by the micro-control board, and the main control module controls the driving piece according to the signals fed back by the micro-control board, so that the driving piece can stop driving in time when the air door baffle moves in place.

6. The driving piece drives the air door baffle to switch the state through the transmission structure, the transmission structure preferably adopts a lifting transmission structure, and the driving piece drives the air door baffle to lift through the lifting transmission structure, so that the air door baffle can smoothly stretch into and withdraw from the air inlet channel, the transmission stability is ensured, the required movable space for switching the air door baffle between the blocking state and the avoiding state can be reasonably reduced, and the switching assembly can keep compact in structure.

7. The transmission structure preferably adopts a screw rod and a transmission block which are in threaded fit, the driving piece drives the screw rod to rotate during working, the rotating screw rod drives the transmission block to axially move along the screw rod through threaded fit, and the moving screw rod drives the air door baffle to switch between a blocking state and a avoiding state. The transmission cooperation structure between the driving piece and the air door baffle is reasonably arranged, so that the driving distance between the driving piece and the air door baffle is reasonably reduced when the driving piece drives the air door baffle to perform state switching transmission requirements, and the structure of the switching assembly can be more compact.

8. The switching assembly and/or the air inlet channel are/is provided with a sealing structure, when the air door baffle is in a blocking state, the air door baffle and the inner wall of the air inlet channel are kept in circumferential sealing fit through the sealing structure, the blocking effect of the air door baffle on the reverse sewage is improved when the inclination amplitude of the cleaning robot is large or the cleaning robot is inverted, and the reverse sewage is prevented from flowing to the sewage suction fan from a gap between the air door baffle and the inner wall of the air inlet channel.

9. The air outlet is arranged at the upper part of the sewage box, so that the sewage collection volume of the sewage box is ensured. The air inlet channel is arranged at the top of the dirt suction fan, so that the smoothness of dirt suction airflow flowing into the air inlet channel from the air outlet can be improved. The switching assembly is arranged at the bottom of the air inlet channel, and a narrow space which is arranged at the bottom of the air inlet channel and between the sewage suction fan and the sewage box is used as an installation space of the switching assembly, so that the utilization rate of the internal space of the machine body is improved, the whole structure is kept compact, and the whole height of the cleaning robot is controlled.

Drawings

FIG. 1 is a schematic diagram of a whole machine of a cleaning robot according to an embodiment;

FIG. 2 is a bottom view of a cleaning robot according to an embodiment;

fig. 3 is a block diagram of a soil pick-up assembly in a cleaning robot according to an embodiment;

Fig. 4 is a block diagram of a sewage box in a cleaning robot according to an embodiment;

FIG. 5 is a schematic view of a door shield in an avoiding state in a cleaning robot according to an embodiment;

FIG. 6 is a schematic view of a door shield in a plugged state in a cleaning robot according to an embodiment;

fig. 7 is an exploded view of a dirt suction fan and an on-off switching assembly in a cleaning robot according to an embodiment;

fig. 8 is a sectional view of an opening/closing switching assembly in a cleaning robot according to an embodiment;

Fig. 9 is a schematic structural view of a screw in a cleaning robot according to an embodiment;

Fig. 10 is a schematic structural diagram of a first in-place switch, a second in-place switch, and a micro-control board in the cleaning robot according to the first embodiment.

In the figure, 100 parts of the machine body, 110 parts of the dirt sucking port, 120 parts of the roller brush cavity, 130 parts of the scraping piece and 140 parts of the travelling wheel,

200-Dirt sucking assembly, 210-sewage box, 211-air outlet, 220-dirt sucking fan, 231-air inlet channel, 232-air inlet shell, 233-notch, 234-convex ring, 241-air exhaust channel, 232-air exhaust shell, 240-waterproof sealing strip, 250-air duct sealing ring,

300-Switching components, 310-air door baffles, 311-accommodating cavities, 312-protruding parts, 320-driving parts, 321-switching motors, 3211-rotating shafts, 330-brackets, 340-transmission structures, 341-screw rods, 342-transmission blocks, 343-transmission holes, 350-waterproof sealing rings, 361-first in-place switches, 3611-first buttons, 362-second in-place switches, 3621-second buttons, 363-micro control boards and 3631-positioning holes,

410-A rolling brush, 420-a water dividing piece, 430-a water purifying box,

500-A main control module.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.

Example 1

Referring to fig. 5 and 6, a cleaning robot for preventing water from entering a fan according to a first embodiment of the present utility model includes a body and a dirt sucking assembly disposed in the body, the dirt sucking assembly includes a dirt sucking fan and a sewage box having an air outlet, and the air outlet is in butt-joint communication with the dirt sucking fan through an air inlet channel 231. The machine body is internally provided with a bracket positioned on one side of the outer wall of the air inlet channel 231, the bracket is provided with an opening and closing switching assembly for opening and closing the air inlet channel 231, the opening and closing switching assembly comprises an air door baffle 310 and a driving piece 320, the driving piece 320 is fixed on the bracket, the air door baffle 310 is movably connected on the bracket, and the air door baffle 310 is provided with a blocking state which stretches into the air inlet channel 231 to block the air inlet channel 231 from an air outlet and a avoiding state which withdraws from the air inlet channel 231 to communicate the air inlet channel 231 with the air outlet, and the driving piece 320 drives the air door baffle 310 to switch between the blocking state and the avoiding state.

Because the switching component is arranged on the support positioned outside the air inlet channel 231, and the air door baffle 310 is used for opening or blocking the air inlet channel 231, no direct matching relationship exists between the switching component and the sewage box, the switching component cannot influence the structure and the disassembly of the sewage box, and the structure difficulty of the sewage box is convenient to simplify and the difficulty of the user in disassembly and assembly of the sewage box is reduced. In addition, the electric element of the switching component can be separated from the sewage box, so that adverse effect of condensed water formed on the surface of the sewage box on the electric element of the switching component can be avoided, and the stability of the working performance of the switching component is ensured.

Referring to fig. 1 to 4, the cleaning robot provided in this embodiment includes a machine body 100 provided with a dirt suction port 110, a dirt suction assembly 200 is provided in the machine body 100, the dirt suction assembly 200 includes a dirt box 210 and a dirt suction fan 220, the dirt box 210 is provided with a dirt inlet communicated with the dirt suction port 110 and an air outlet 211 in butt joint with the dirt suction fan 220, an air inlet end of the dirt suction fan 220 is in butt joint communication with the air outlet 211 through an air inlet channel 231, and an air outlet end of the dirt suction fan 220 is in butt joint communication with an air exhaust channel 241 extending to a side wall of the machine body 100. The machine body 100 is internally provided with an opening-closing switching assembly 300 for opening and closing the air inlet channel 231, the opening-closing switching assembly 300 comprises an air door baffle 310 and a driving piece 320, the air door baffle 310 is provided with a blocking state which stretches into the air inlet channel 231 to block the air inlet channel 231 and the air outlet 211 and a avoiding state which withdraws from the air inlet channel 231 to communicate the air inlet channel 231 and the air outlet 211, and the driving piece 320 drives the air door baffle 310 to switch between the blocking state and the avoiding state.

In this embodiment, a roller brush cavity 120 with an opening bottom is provided at the rear of the machine body 100, a roller brush 410 driven by a roller brush motor is provided in the roller brush cavity 120, and the axial direction of the roller brush 410 is set along the left-right direction. The machine body 100 is internally provided with a water purifying box 430 for supplying liquid to the rolling brush 410 through the water dividing piece 420, the liquid in the water purifying box 430 flows to the water dividing piece 420 through a pipeline under the pumping action of a pump, the liquid flowing into the water dividing piece 420 is sprayed onto the rolling brush 410 to enable the rolling brush 410 to absorb liquid and wet, and the rolling brush 410 absorbing liquid and wet can wet and wipe a surface to be cleaned when the cleaning robot works. As an alternative of this embodiment, the water diversion member 420 may adopt a structure of splitting one water inlet waterway into a plurality of water outlet waterways according to a mode of 2 ^N (N is a natural number) in the prior art. Other structures of the cleaning robot can refer to the prior art, such as the front portion of the machine body 100 is provided with an edge brush, the middle portion of the machine body 100 is provided with a dust collection component, the machine body 100 is provided with a universal wheel and a travelling wheel 140, and the machine body 100 is internally provided with a battery pack, etc., which are not described herein.

The roller brush cavity 120 is internally provided with a scraping piece 130 for scraping the roller brush 410, the scraping piece 130 extends along the axial direction of the roller brush 410, the dirt sucking port 110 is communicated with the roller brush cavity 120, and the dirt sucking port 110, the scraping piece 130 and the water dividing piece 420 are sequentially distributed along the rotating direction of the roller brush 410 during working. The scraping member 130 scrapes the rotating rolling brush 410, and the dirt suction fan 220 is operated to provide suction force to form dirt suction air flow which flows from the dirt suction opening 110 to the dirt box 210 and flows through the dirt suction fan 220 via the air outlet 211, so that the dirt scraped by the scraping member 130 by the rolling brush 410 flows into the dirt box 210 along with the dirt suction air flow. As an alternative to this embodiment, the scraping member 130 may use only a scraping bar, may use only a scraping tooth, or may use a structure in which the scraping bar cooperates with the scraping tooth, which is not limited in this regard.

Referring to fig. 7, as a preferred embodiment of the present embodiment, the air intake duct 231 is surrounded by the air intake housing 232, and the air exhaust duct 241 is surrounded by the air exhaust housing 242. One end of the air inlet housing 232 is matched with the sewage box 210 and covers the periphery of the air outlet 211 so that the air inlet channel 231 is communicated with the air outlet 211, and the other end of the air inlet housing 232 is connected with the air inlet end of the sewage suction fan 220. One end of the exhaust shell 242 is connected with the air outlet end of the sewage suction fan 220, and the other end of the exhaust shell 242 is arranged towards the exhaust hole on the side wall of the machine body 100. When the sewage box 210 is detachably mounted in the machine body 100, one end of the air inlet housing 232 is detachably engaged with the sewage box 210. An air duct sealing ring 250 is arranged between the end part of the air inlet shell 232 and the side wall of the sewage box 210, provided with the air outlet 211, the air duct sealing ring 250 is positioned at the end part of the air inlet shell 232 through the matching of the protrusions and the grooves, the air outlet 211 and the air inlet channel 231 are hermetically communicated through the air duct sealing ring 250, an air leakage gap is avoided between the air outlet 211 and the air inlet channel 231, and the strength of the sewage suction air flow is guaranteed.

Referring to fig. 4, as a preferred embodiment of the present embodiment, the air outlet 211 is disposed at an upper portion of a side wall of the sewage box 210 facing the sewage suction fan 220, that is, the air outlet 211 is disposed on an upper side with respect to the sewage box 210, thereby ensuring a sewage collection volume of the sewage box 210. Accordingly, the air inlet housing 232 is disposed at the top of the dirt suction fan 220, so that the air inlet channel 231 is disposed at the top of the dirt suction fan 220, and smoothness of flowing dirt suction air from the air outlet 211 into the air inlet channel 231 can be improved. In order to keep the overall structure of the cleaning robot compact, a narrow space is formed between the sewage suction fan 220 and the sewage box 210, which is located at the bottom of the air inlet housing 232, and the narrow space is used as an installation space of the switching assembly 300, that is, the switching assembly 300 is arranged between the sewage suction fan 220 and the sewage box 210 through the bracket 330 and is located at the bottom of the air inlet housing 232, the air door baffle 310 is preferably arranged to be movable up and down relative to the air inlet channel 231, the air door baffle 310 switched to the blocking state extends into the air inlet channel 231 upwards, and the air door baffle 310 switched to the avoiding state withdraws from the air inlet channel 231 downwards.

Referring to fig. 7 and 8, as a preferable embodiment of the present embodiment, the damper flap 310 is provided on the bracket 330 to be movable up and down. Specifically, the bottom wall of the air inlet housing 232 is provided with a notch 233 for the air door baffle 310 to extend into or withdraw from the air inlet channel 231, the bottom wall of the air inlet housing 232 is also provided with a convex ring 234 extending downwards around the notch 233, part of the air door baffle 310 is always inserted into the convex ring 234, the convex ring 234 has a guiding function on the air door baffle 310 moving up and down, so that the air door baffle 310 switched from the avoiding state to the blocking state can extend into the air inlet channel 231 smoothly from the notch 233, and the smoothness of state switching of the air door baffle 310 is improved.

The switching assembly 300 includes a transmission structure 340 disposed between the driving member 320 and the damper flap 310, and the driving member 320 drives the damper flap 310 to switch states through the transmission structure 340. As a preferred scheme of the present embodiment, the driving member 320 adopts a switching motor 321 with a rotating shaft 3211, the transmission structure 340 preferably adopts a lifting transmission structure, specifically, the transmission structure 340 includes a screw 341 connected to the rotating shaft 3211 in a transmission manner and a transmission block 342 sleeved on the screw 341 through a threaded fit, the transmission block 342 is connected with the damper baffle 310, and the switching motor 321 drives the damper baffle 310 to perform a linear lifting motion through the screw 341 and the transmission block 342 so as to realize a switching state. Referring to fig. 9, specifically, the switch motor 321 is fixed at the bottom of the bracket 330, a transmission hole 343 matched with the rotating shaft 3211 is provided at the lower end of the screw 341, and the rotating shaft 3211 and the transmission hole 343 adopt a non-circular shaft hole matching structure, so that the rotating shaft 3211 can smoothly drive the screw 341 to rotate around its central axis when the switch motor 321 works. The damper flap 310 is provided with a protrusion 312 surrounding the accommodating cavity 311 on a side facing the screw 341, and the transmission block 342 is disposed in the accommodating cavity 311, so that the transmission block 342 and the damper flap 310 are kept relatively fixed. When the switching motor 321 works, the rotating shaft 3211 drives the screw 341 to rotate, and the rotating screw 341 drives the damper baffle 310 to move upwards or downwards through the transmission block 342. As an alternative of this embodiment, a non-circular shaft hole matching manner such as a rectangular shaft hole matching structure, a spline-shaped shaft hole matching structure, an elliptical shaft hole matching structure, a triangular shaft hole matching structure, etc. may be adopted between the rotating shaft 3211 and the transmission hole 343.

As a preferred scheme of the embodiment, the switching component 300 and the air inlet channel 231 are provided with sealing structures for keeping the air door baffle 310 in a blocking state in sealing fit with the inner wall of the air inlet channel 231, so that the blocking effect of the air door baffle 310 on the backflow sewage is improved when the cleaning robot is inclined to a large extent or inverted, and the backflow sewage is prevented from flowing to the sewage suction fan 220 from a gap between the air door baffle 310 and the inner wall of the air inlet channel 231. Specifically, the switching assembly 300 is provided with a waterproof sealing ring 350, the waterproof sealing ring 350 is positioned on the bracket 330, the waterproof sealing ring 350 is sleeved on the outer periphery of the damper baffle 310 and is located on the inner periphery of the convex ring 234, that is, the waterproof sealing ring 350 is located between the damper baffle 310 and the convex ring 234, and the top wall and the vertical side walls of the air inlet channel 231 are both provided with waterproof sealing strips 240. When the air door baffle 310 is in a blocking state, the top side of the air door baffle 310 is in sealing fit with the waterproof sealing strips on the top wall of the air inlet channel 231 in a propping manner, the vertical two sides of the air door baffle 310 are respectively in sealing fit with the waterproof sealing strips on the side walls of the vertical two sides of the air inlet channel 231 in a propping manner, the lower part of the air door baffle 310 is in sealing fit with the convex ring 234 through the waterproof sealing ring 350, and the combination of the waterproof sealing ring 350 and the waterproof sealing strips 240 is used for realizing circumferential sealing fit between the air door baffle 310 and the air inlet channel 231, so that the sewage flowing backward is prevented from flowing to the sewage suction fan 220 from a gap between the air door baffle 310 and the inner wall of the air inlet channel 231 or from the air inlet channel 231 to leak outwards. As an alternative to this embodiment, the waterproof sealing strip 240 may also be disposed on the top side and the vertical sides of the damper flap 310, in which case the sealing structure is disposed on the damper flap 310; of course, the waterproof sealing ring 350 may also be positioned at the notch 233, and the sealing structure is disposed in the air inlet channel 231.

Referring to fig. 10, as a preferred embodiment of the present embodiment, the on-off switching assembly 300 further includes two first in-place switches 361 and second in-place switches 362 that are spaced apart, the first in-place switches 361 being triggered when the damper flap 310 is switched to the blocking state, and the second in-place switches 362 being triggered when the damper flap 310 is switched to the avoiding state. The movable travel of the air door baffle 310 in the switching state is limited by the two in-place switches, so that the air door baffle 310 in the avoiding state can withdraw from the air inlet channel 231 as far as possible to ensure the communication area between the air inlet channel 231 and the air outlet 211, and the air door baffle 310 in the blocking state can effectively block the air inlet channel 231 and the air outlet 211, thereby ensuring the blocking effect of the air door baffle 310 on backflow sewage when the cleaning robot is large in inclination range or is inverted. Further, the switching assembly 300 further includes a micro control plate 363, the micro control plate 363 is positioned and vertically disposed on the bracket 330, the first in-place switch 361 and the second in-place switch 362 are vertically spaced and disposed on the micro control plate 363, the first in-place switch 361 is provided with a first button 3611 capable of being automatically reset on a side facing the transmission block 342, and the second in-place switch 362 is provided with a second button 3621 capable of being automatically reset on a side facing the transmission block 342. The main control module 500 is arranged in the machine body 100, the micro control plate 363 is electrically connected to the main control module 500, and the electric elements including the sewage suction fan 220, the switching motor 321, the roller brush motor and the like on the machine body 100 are controlled by the main control module 500. When the switching motor 321 drives the air door baffle 310 to move up to the blocking state through the transmission structure 340, the transmission block 342 presses the first button 3611 to trigger the first in-place switch 361, the micro control board 363 feeds back the trigger signal of the first in-place switch 361 to the main control module 500, the main control module 500 judges that the air door baffle 310 moves in place according to the trigger signal of the first in-place switch 361, and the main control module 500 commands the switching motor 321 to stop working. When the switching motor 321 drives the damper flap 310 to move downward to the avoidance state through the transmission structure 340, the transmission block 342 presses the second button 3621 to trigger the second in-place switch 362, the micro control board 363 feeds back the trigger signal of the second in-place switch 362 to the main control module 500, the main control module 500 determines that the damper flap 310 moves in place according to the trigger signal of the second in-place switch 362, and the main control module 500 commands the switching motor 321 to stop working.

As the preferred scheme of this embodiment, be equipped with a plurality of locating holes 3631 along vertical interval distribution on the little accuse board 363, be equipped with the reference column that is protruding towards little accuse board 363 on the support 330, the reference column inserts in the locating hole 3631, makes little accuse board 363 receive vertical location, and support 330 is equipped with two upper and lower interval distribution's corresponding two switches that target in place and dodges the mouth, and two switches that target in place are inserted respectively and are put in two dodges mouthful to make transmission piece 342 can contradict the button on two switches target in place smoothly.

Referring to fig. 5, in a normal state, the damper baffle 310 is in a state of being kept away, at this time, the air outlet 211 on the sewage box 210 is communicated with the air inlet channel 231, and the suction fan 220 is provided to form a suction air flow from the suction inlet 110 into the sewage box 210 and out of the sewage box 210 through the air outlet 211, and the suction air flow out of the sewage box 210 flows into the suction fan 220 through the air inlet channel 231 and flows out of the suction fan 220 through the air exhaust channel 241, and the suction air flow out of the suction fan 220 is finally discharged through the air outlet on the side wall of the machine body 100.

Referring to fig. 6, when the main control module 500 detects that the inclination of the machine body 100 is too large or is inverted, the main control module 500 instructs the switching motor 321 to operate, the switching motor 321 drives the air door baffle 310 to extend into the air inlet channel 231 through the transmission structure 340, when the air door baffle 310 moves to the transmission block 342 to press the first button 3611, the first in-place switch 361 is triggered, the main control module 500 determines that the air door baffle 310 is switched to the blocking state according to the trigger signal of the first in-place switch 361, and the main control module 500 instructs the switching motor 321 to stop operating, at this time, the air door baffle 310 cuts off the air outlet 211 and the air exhaust channel 241, so as to prevent sewage in the sewage box 210 from flowing to the sewage suction fan 220.

When the main control module 500 detects that the tilting condition or the inversion condition of the machine body 100 is relieved, the main control module 500 commands the switching motor 321 to work, the switching motor 321 drives the air door baffle 310 to exit the air inlet channel 231 through the transmission structure 340, when the air door baffle 310 moves to the transmission block 342 to press the second button 3621, the second in-place switch 362 is triggered, the main control module 500 judges that the air door baffle 310 is switched to an avoiding state according to the trigger signal of the second in-place switch 362, and the main control module 500 commands the switching motor 321 to stop working, at this time, the air outlet 211 is communicated with the air exhaust channel 241, so that the dirt absorbing assembly 200 can work normally.

As an alternative of the present embodiment, two travelling wheels 140 of the cleaning robot may be provided on the machine body 100 in a manner that the cantilever can float up and down, and an inductive switch corresponding to the travelling wheel 140 is provided in the machine body 100. When any one of the traveling wheels 140 is separated from the ground, the corresponding inductive switch is triggered, the main control module 500 judges that the inclination amplitude of the machine body 100 is larger or is inverted according to the triggering signal of the inductive switch, and the main control module 500 commands the switching motor 321 to work and drives the air door baffle 310 to switch to the blocking state according to the inclination amplitude. When both the two inductive switches are restored to the normal state, the main control module 500 determines that the machine body 100 is in the normal state according to the signal of the inductive switch, and the main control module 500 commands the switching motor 321 to work and drives the air door baffle 310 to switch to the avoidance state according to the signal, so that the dirt suction fan 220 can work normally. Of course, the main control module 500 may also determine whether the machine body 100 is in a state with a larger inclination or in an inverted state according to other signals.

As an alternative to this embodiment, if the height of the machine body 100 is sufficient, the switching component 300 may be disposed on the top of the air inlet housing 232, and the air door flap 310 switched to the blocking state moves downward to extend into the air inlet channel 231, and the air door flap 310 switched to the avoiding state moves upward to exit the air inlet channel 231.

Alternatively to this embodiment, the damper flap 310 may be disposed to be horizontally movable, and at this time, the damper flap 310 horizontally moving toward the air inlet housing 232 extends into the air inlet channel 231, and the damper flap 310 horizontally moving away from the air inlet housing 232 exits the air inlet channel 231.

As an alternative to this embodiment, the driving member 320 may be a small cylinder, and the transmission structure 340 may be changed according to the specific type of driving member.

As an alternative to this embodiment, the transmission structure 340 may also adopt a transmission matching structure that can realize linear driving, such as a gear and a rack.

As an alternative to this embodiment, the first in-place switch 361 and the second in-place switch 362 may also use magnetic induction elements with smaller induction ranges, at this time, a magnet is disposed on the damper flap 310, and when the damper flap 310 is switched to the avoidance state or the blocking state, the corresponding in-place switch is triggered by the magnet on the damper flap 310, so that the master control module 500 can timely command the switching motor 321 to stop working.

In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which shall fall within the scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a prevent cleaning robot of fan intaking, includes the organism and locates the dirt subassembly of inhaling in the organism, dirt subassembly includes dirt fan and the sewage box that is equipped with the air outlet, the air outlet passes through air inlet passageway and dirt fan butt joint intercommunication, a serial communication port, be equipped with the support that is located air inlet passageway outer wall one side in the organism, be equipped with the switching subassembly that is used for switching air inlet passageway on the support, switching subassembly includes air door baffle and driving piece, and the driving piece is fixed in on the support, air door baffle swing joint is on the support, and air door baffle has the shutoff state that stretches into air inlet passageway and the state of avoiding that withdraws from air inlet passageway, and the driving piece drives the air door baffle and switches between shutoff state and state of avoiding.

2. The cleaning robot for preventing water inflow of a fan according to claim 1, wherein an air inlet housing is arranged between the sewage box and the dirt suction fan, the air inlet channel is formed by enclosing the air inlet housing, and the air inlet housing is provided with a notch for the air supply door baffle to extend into or withdraw from the air inlet channel.

3. A cleaning robot for preventing water from entering a fan as claimed in claim 2, wherein the air inlet housing is provided with a collar protruding outwardly around the slot, the collar being located at the periphery of the damper flap.

4. The cleaning robot of claim 1, wherein the on-off switching assembly comprises two first in-place switches and a second in-place switch spaced apart on the support, the first in-place switch being triggered when the damper flap is switched to the blocking state and the second in-place switch being triggered when the damper flap is switched to the avoiding state.

5. The cleaning robot for preventing water inflow of a fan according to claim 4, wherein the cleaning robot comprises a main control module arranged in the machine body, the driving piece is controlled by the main control module, the switching assembly comprises a micro control board arranged on the bracket, and the first in-place switch and the second in-place switch are arranged on the micro control board.

6. The cleaning robot of claim 1, wherein the switching assembly comprises a transmission mechanism disposed between the driving member and the damper flap, the driving member driving the damper flap to switch states via the transmission mechanism.

7. The cleaning robot for preventing water inflow of a blower of claim 6, wherein the transmission structure is a lifting transmission structure.

8. The cleaning robot for preventing water inflow of a fan according to claim 6, wherein the transmission structure comprises a screw rod and a transmission block sleeved on the screw rod through threaded fit, the transmission block is connected with the air door baffle, and the driving piece drives the air door baffle to switch states through the screw rod and the transmission block.

9. A cleaning robot for preventing water inflow of a blower according to claim 1, wherein the switching assembly and/or the air inlet passage are provided with a sealing structure to maintain a sealing engagement of the air door shutter in a blocking state with an inner wall of the air inlet passage.

10. The cleaning robot for preventing water inflow of a blower according to any one of claims 1 to 9, wherein the air outlet is provided at an upper portion of the sewage box, the air inlet passage is provided at a top portion of the sewage suction blower, and the switching assembly is provided at a bottom portion of the air inlet passage.