CN112890664B

CN112890664B - Vehicle-mounted dust collector

Info

Publication number: CN112890664B
Application number: CN202110054628.XA
Authority: CN
Inventors: 项红梅
Original assignee: Yiwu Kunyue Toys Co ltd
Current assignee: Yiwu Kunyue Toys Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2022-09-23
Anticipated expiration: 2041-01-15
Also published as: CN112890664A

Abstract

The invention relates to the technical field of dust collectors, and discloses a vehicle-mounted dust collector which comprises a shell, wherein a front end cover is arranged at the front end of the shell, an air suction joint is arranged at the front end of the front end cover, a rear end cover is arranged at the rear end of the shell, a plurality of exhaust grooves are formed in the rear end cover, a dust collecting cylinder is arranged at the front end inside the shell, a filter element is arranged at the rear end inside the dust collecting cylinder, a dust storage box is arranged at the front end inside the dust collecting cylinder and is connected with the dust collecting cylinder in a clamping mode, a dust inlet channel is arranged at the bottom of the dust storage box, the front end cover is connected with the shell in a threaded mode, a motor base is fixed on the rear side, located at the rear side of the dust collecting cylinder, of the inside of the shell, a motor is fixed at the front end of the motor base, fan blades are fixed at the shaft end of the motor, a storage battery is arranged at the rear end of the motor base, a charging interface and a switch which are connected with the storage battery are arranged on the shell, and a plurality of air guide through holes are formed in the edge of the motor base. The invention has the advantages of small volume, convenient carrying and use.

Description

Vehicle-mounted dust collector

Technical Field

The invention relates to the technical field of dust collectors, in particular to a vehicle-mounted dust collector.

Background

At present, automobiles are more and more popular, environmental sanitation in the automobiles is more and more emphasized, but due to the special structure in the automobiles, various dust, fragments, shells and other small sundries can be arranged among gaps among seats in the automobiles, on mats in the automobiles and in other corner falls, the automobiles are difficult to clean, and the automobiles are usually regularly washed in a car washing shop and are internally treated by dust absorption of a large dust collector. The cost for cleaning the dust in the car is high and troublesome, the car needs to be queued under the common condition, and the car does not need to be cleaned under the condition of cleaning the dust in the car. The existing large dust collector is inconvenient to carry and use in a vehicle.

Disclosure of Invention

The invention provides a vehicle-mounted dust collector which is small in size, convenient to carry and convenient to use, and aims to solve the problem that dust in an automobile is inconvenient to remove in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a vehicle-mounted dust collector comprises a shell, wherein the front end of the shell is provided with a front end cover, the front end of the front end cover is provided with a suction joint, a rear end cover is arranged at the rear end of the shell, a plurality of exhaust grooves are arranged on the rear end cover, a dust collecting barrel is arranged at the front end inside the shell, the rear end of the interior of the dust collecting cylinder is provided with a filter element, the front end of the interior of the dust collecting cylinder is provided with a dust storage box, the dust storage box is connected with the dust collection cylinder in a clamping way, the bottom of the dust storage box is provided with a dust inlet channel, the front end cover is connected with the shell through screw threads, a motor seat is fixed inside the shell and positioned at the rear side of the dust collecting barrel, a motor is fixed at the front end of the motor seat, the shaft end of motor is fixed with the flabellum, the rear end of motor cabinet is equipped with the battery, is equipped with the interface, the switch that charge of being connected with the battery on the casing, the edge of motor cabinet is equipped with a plurality of air guide through-holes. The storage battery is charged through the charging interface, when dust in the vehicle needs to be sucked, the switch is pressed, the motor drives the fan blades to rotate at the moment, airflow enters from the air suction joint and is exhausted from the air exhaust groove after passing through the filter element, various dust, small particle sundries and the like at the position of the inner corner of the vehicle are sucked into the dust storage box, the switch is closed after the use is finished, the dust storage box is taken out after the front end cover is opened, and the sundries in the dust storage box are poured out and cleaned; the vehicle-mounted dust collector is small in size, convenient to carry and very convenient to use.

Preferably, the air suction joint is connected with an air suction pipe, and the air suction pipe is in threaded connection with the air suction joint. The air suction joint can be butted with various air suction pipes to meet the dust suction requirements of different occasions.

Preferably, the inner end of the dust inlet channel is provided with a blocking piece, the bottom surface of the dust storage box is provided with a sliding sleeve, and the blocking piece is provided with a sliding rod which is in sliding connection with the sliding sleeve. When the fan blades rotate to suck air, the dust storage box is in a negative pressure state, the blocking pieces are automatically opened, and when the fan blades stop rotating, the blocking pieces seal the dust inlet channel under the action of gravity, so that sundries in the dust storage box are prevented from falling out.

Preferably, the rear end of the dust collecting cylinder extends to form a flange fixed with the shell, an annular gap is formed between the dust collecting cylinder and the shell, a retainer ring is arranged between the front end of the dust collecting cylinder and the shell, a plurality of air inlet grooves are formed in the flange, a plurality of air inlet holes are uniformly distributed in the retainer ring, a front connecting ring is sleeved on the part, between the flange and the retainer ring, of the outer side of the dust collecting cylinder and is in sliding connection with the dust collecting cylinder, sealing columns which are in one-to-one correspondence with the air inlet holes are arranged at the front end of the front connecting ring, a plurality of guide pillars penetrating through the flange are fixed at the rear end of the front connecting ring, a rear connecting ring is fixed between the rear ends of the guide pillars, and a pressure spring is sleeved on the guide pillars; and a handle is arranged on the side surface of the shell, and a displacement reversing linkage mechanism for synchronously controlling the front connecting ring to move backwards and reversing the current of the storage battery is arranged on the handle. Some corners are narrow, the dust suction pipe is difficult to extend into the corners, and dust and particles at the narrow part need to be blown out by blowing and then sucked away; when air needs to be blown, the front connecting ring can be pulled backwards to a position through the displacement reversing linkage mechanism, so that the sealing column is separated from the air inlet hole, the current of the storage battery is reversed, the motor rotates reversely, the fan blades rotate reversely, and air flow enters from the air exhaust groove, passes through the air inlet groove, the annular gap and the air inlet hole in sequence and is exhausted from the air suction joint, so that air blowing is realized; the dust collector can quickly realize the switching of dust collection and air blowing, and is more convenient to use.

Preferably, the displacement reversing linkage mechanism comprises a shifting block and a current reversing switch assembly, a long slotted hole is formed in the inner wall of the shell and corresponds to the handle, the shifting block is located on the front side of the upper end of the handle and is in sliding connection with the handle, the rear end of the shifting block penetrates through the handle and extends into the long slotted hole, the current reversing switch assembly is fixed at the rear end of the long slotted hole and is electrically connected with the motor and the storage battery, a reversing rod facing the rear end of the shifting block is arranged at the front end of the current reversing switch assembly, a connecting rod is arranged on the rear connecting ring, one end of the connecting rod is fixedly connected with the rear connecting ring, and the other end of the connecting rod penetrates through the rear end of the shifting block and is fixedly connected with the shifting block; when the shifting block is shifted backwards, the shifting block pulls the rear connecting ring to move backwards through the connecting rod, the sealing column on the front connecting ring is separated from the air inlet hole at the moment, the reversing rod is pressed down by the rear end of the shifting block, the motor rotates reversely after the current is reversed, air is blown at the air suction joint, the front connecting ring moves forwards to reset after the shifting block is loosened, the air inlet hole is sealed by the sealing column, the reversing rod resets, the motor rotates forwards and backwards, and the air suction joint sucks air.

Preferably, a supporting cylinder for supporting the dust storage box is arranged in the front end cover, the front end of the supporting cylinder is connected with the air suction joint into a whole, the supporting cylinder and the front end cover are supported to form an exhaust channel, and a plurality of air blowing holes which are circumferentially distributed and communicated with the exhaust channel are formed in the front end of the supporting cylinder. During dust collection, dust enters from the center of the supporting cylinder, and during air blowing, air flow is blown out from the air blowing holes, so that the supporting cylinder can realize supporting and positioning of the dust removing box and can isolate air suction and air blowing paths, and the whole body is more stable.

Preferably, a lower end cover is fixed to the lower end of the handle, a water pipe connector is arranged on the lower end cover, annular cavities are arranged in the front connecting ring and the rear connecting ring, flow guide holes communicated with the annular cavities are formed in the guide pillars, water spray holes communicated with the annular cavities are formed in the sealing pillars, water inlet holes communicated with the annular cavities are formed in the connecting rods, and a flexible water pipe is arranged between the water pipe connector and the connecting rods. When the car needs to be washed, the water pipe is connected with the water pipe joint, the other end of the water pipe is connected with tap water, water flow is sprayed out through the water pipe joint, the flexible water pipe, the water inlet hole, the annular cavity in the rear connecting ring, the flow guide hole in the guide pillar, the annular cavity in the front connecting ring and the water spray hole in the sealing column in sequence, and the water flow is sprayed on the surface of a car body to realize the car washing operation; and the water path, the air path and the circuit are mutually independent, so that the overall stability is better.

Preferably, the current reversing switch assembly comprises a switch shell and two groups of conductive terminals arranged in the switch shell, the reversing rod is connected with the switch shell in a sliding manner, an insulating rod is fixed at the inner end of the reversing rod, movable terminals are fixed at two ends of the insulating rod, the two movable terminals are respectively connected with the motor through wires, and a reset spring is arranged between the insulating rod and the shell; the two groups of conductive terminals are respectively positioned at two sides of the movable terminal, each group of conductive terminals comprises a positive conductive terminal and a negative conductive terminal, the positive conductive terminal and the negative conductive terminal in the two groups of lead terminals are distributed in a reverse direction, the positive conductive terminal is electrically connected with the positive electrode of the storage battery, and the negative conductive terminal is electrically connected with the negative electrode of the storage battery.

Preferably, the edge of the rear end of the filter element is fixedly provided with a plurality of permanent magnets, the permanent magnets and the rear end of the dust collection cylinder are magnetically adsorbed, and the edge of the rear end of the filter element is also provided with a sealing ring. The filter element is magnetically connected with the dust collecting cylinder through the permanent magnet, so that the installation and the disassembly are very convenient, and the filter element is convenient to disassemble and clean.

Therefore, the invention has the following beneficial effects: (1) the volume is small, the carrying is convenient, and the use is convenient; (2) dust collection and air blowing can be switched rapidly, so that dead corners in the vehicle can be cleaned more conveniently, and the dust collection effect is better; (3) the dust collector can be used as a spray gun to clean the outside of a vehicle body after being connected with a water pipe, and has various functions.

Drawings

FIG. 1 is a schematic diagram of a structure of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is a schematic view of the internal structure of fig. 1.

Fig. 5 is a schematic view of the dust suction state.

Fig. 6 is a schematic structural view of a blowing state.

Fig. 7 is a schematic structural view of the present invention with the housing and rear end cap removed.

Fig. 8 is an exploded view of the dust collecting tube, the dust storage box and the filter element.

Fig. 9 is a sectional view of the dust collecting tube and the dust storage box.

Fig. 10 is a schematic connection diagram of the motor base, the motor and the storage battery.

Fig. 11 is a cross-sectional view of the front end cap.

Fig. 12 is a schematic diagram of the circuit connection of the current reversing switch assembly with the storage battery and the motor.

In the figure: the dust collecting device comprises a shell 1, a handle 100, a long slotted hole 101, a lower end cover 102, a water pipe connector 103, a flexible water pipe 104, a front end cover 2, an air suction connector 200, a support cylinder 201, an exhaust channel 202, an air blowing hole 203, a rear end cover 3, an exhaust groove 300, a dust collecting cylinder 4, a flange 400, an annular gap 401, a retainer ring 402, an air inlet groove 403, an air inlet hole 404, a filter element 5, a permanent magnet 6, a sealing ring 7, a dust storage box 8, a dust inlet channel 80, a sliding sleeve 81 and a baffle plate 9, the device comprises a sliding rod 90, a motor base 10, a motor 11, fan blades 12, a storage battery 13, a charging interface 14, a switch 15, an air guide through hole 16, an air suction pipe 17, a front connecting ring 18, an annular cavity 1820, a sealing column 180, a water spray hole 181, a guide column 19, a guide hole 190, a rear connecting ring 20, a pressure spring 21, a shifting block 22, a current reversing switch assembly 23, a reversing rod 230, a conductive terminal 231, an insulating rod 232, a movable terminal 233, a return spring 234 and a connecting rod 24.

Detailed Description

The invention is further described with reference to the following figures and detailed description:

as shown in figures 1, 2, 3 and 4, fig. 5, fig. 7, fig. 8, fig. 9 and fig. 10 show a vehicle-mounted vacuum cleaner, which includes a housing 1, a front end of the housing 1 is provided with a front end cover 2, a front end of the front end cover 2 is provided with an air suction joint 200, a rear end of the housing 1 is provided with a rear end cover 3, the rear end cover 3 is provided with a plurality of exhaust grooves 300, an internal front end of the housing 1 is provided with a dust collecting cylinder 4, an internal rear end of the dust collecting cylinder 4 is provided with a filter element 5, a rear end edge of the filter element 5 is fixed with a plurality of permanent magnets 6, the permanent magnets and the rear end of the dust collecting cylinder 4 are magnetically adsorbed, a rear end edge of the filter element 5 is further provided with a sealing ring 7, an internal front end of the dust collecting cylinder 4 is provided with a dust storage box 8, the dust storage box is connected with the dust collecting cylinder in a clamping manner, a dust inlet passage 80 is arranged at the bottom of the dust storage box 8, a blocking piece 9 is arranged at the inner end of the dust inlet passage 80, a sliding sleeve 81 is arranged on the bottom surface of the dust storage box 8, and a sliding bar 90 connected with the sliding sleeve.

The front end cover 2 is in threaded connection with the shell 1, a motor base 10 is fixed on the rear side of the dust collection barrel in the shell 1, a motor 11 is fixed on the front end of the motor base 10, fan blades 12 are fixed at the shaft end of the motor, a storage battery 13 is arranged at the rear end of the motor base 10, a charging interface 14 and a switch 15 which are connected with the storage battery are arranged on the shell 1, and a plurality of air guide through holes 16 are formed in the edge of the motor base 10; the air suction joint 200 is connected with an air suction pipe 17, and the air suction pipe is in threaded connection with the air suction joint.

As shown in fig. 7, 8 and 9, the rear end of the dust collecting cylinder 4 extends to form a flange 400 fixed with the housing, an annular gap 401 is formed between the dust collecting cylinder and the housing, a retainer ring 402 is arranged between the front end of the dust collecting cylinder 4 and the housing, a plurality of air inlet grooves 403 are arranged on the flange 400, a plurality of air inlet holes 404 are uniformly distributed on the retainer ring 402, a front connecting ring 18 is sleeved on a position between the flange and the retainer ring on the outer side of the dust collecting cylinder 4, the front connecting ring 18 is slidably connected with the dust collecting cylinder 4, sealing posts 180 corresponding to the air inlet holes one by one are arranged at the front end of the front connecting ring 18, a plurality of guide posts 19 penetrating through the flange are fixed at the rear end of the front connecting ring 18, a rear connecting ring 20 is fixed between the rear ends of the guide posts 19, and a pressure spring 21 is sleeved on the guide posts; the side of the shell 1 is provided with a handle 100, and the handle 100 is provided with a displacement reversing linkage mechanism for synchronously controlling the forward connecting ring to move backwards and reversing the current of the storage battery.

As shown in fig. 5, 7 and 9, the displacement reversing linkage mechanism includes a shifting block 22 and a current reversing switch assembly 23, a long slot hole 101 is formed in a position, corresponding to the handle, on the inner wall of the casing 1, the shifting block 22 is located on the front side of the upper end of the handle and is in sliding connection with the handle, the rear end of the shifting block penetrates through the handle and extends into the long slot hole, the current reversing switch assembly 23 is fixed at the rear end of the long slot hole 101, the current reversing switch assembly is electrically connected with the motor and the storage battery (the specific connection mode is shown in fig. 12), a reversing rod 230 facing the rear end of the shifting block is arranged at the front end of the current reversing switch assembly 23, a connecting rod 24 is arranged on the rear connecting ring 20, one end of the connecting rod 24 is fixedly connected with the rear connecting ring 20, and the other end of the connecting rod 24 penetrates through the rear end of the shifting block 22 and is fixedly connected with the shifting block; when the shifting block is shifted backwards, the shifting block pulls the rear connecting ring to move backwards through the connecting rod, the sealing column on the front connecting ring is separated from the air inlet hole at the moment, the reversing rod is pressed down by the rear end of the shifting block, the motor rotates reversely after current is reversed, air blowing is realized at the air suction joint, the front connecting ring moves forwards to reset after the shifting block is loosened, the air inlet hole is sealed by the sealing column, the reversing rod resets, the motor rotates forwards and backwards, and air suction is realized at the air suction joint;

the lower end of the handle 100 is fixed with a lower end cover 102, the lower end cover is provided with a water pipe connector 103, the front connecting ring 18 and the rear connecting ring 20 are both provided with an annular cavity 1820, the guide pillar 19 is provided with a guide hole 190 communicated with the annular cavity, the sealing pillar 180 is provided with a water spray hole 181 communicated with the annular cavity, the connecting rod is provided with a water inlet communicated with the annular cavity, and a flexible water pipe 104 is arranged between the water pipe connector 103 and the connecting rod.

As shown in fig. 5 and fig. 11, a supporting cylinder 201 for supporting the dust storage box is arranged inside the front end cover 2, the front end of the supporting cylinder is connected with the air suction connector into a whole, the supporting cylinder and the front end cover support to form an exhaust channel 202, and the front end of the supporting cylinder 201 is provided with a plurality of air blowing holes 203 which are circumferentially distributed and communicated with the exhaust channel.

As shown in fig. 12, the current reversing switch assembly 23 includes a switch housing and two sets of conductive terminals 231 disposed in the switch housing, the reversing lever 230 is slidably connected with the switch housing, an insulating rod 232 is fixed at an inner end of the reversing lever, movable terminals 233 are fixed at two ends of the insulating rod, the two movable terminals are respectively connected with the motor 11 through wires, and a return spring 234 is disposed between the insulating rod 232 and the housing; two groups of conductive terminals are respectively positioned at two sides of the movable terminal, each group of conductive terminals comprises a positive conductive terminal and a negative conductive terminal, the positive conductive terminal and the negative conductive terminal in the two groups of lead terminals are distributed in a reverse direction, the positive conductive terminal is electrically connected with the positive electrode of the storage battery 13, and the negative conductive terminal is electrically connected with the negative electrode of the storage battery 13.

The principle of the invention is as follows with reference to the attached drawings: when dust needs to be sucked in the vehicle, the switch 15 is turned on, the motor drives the fan blades to rotate forward, the air flow enters from the air suction pipe 17, the dust collection cylinder is in a negative pressure state, the blocking piece 9 opens the dust inlet channel 80, dust and particle impurities enter the dust storage box along with the air flow, the air flow is discharged from the air exhaust groove after passing through the filter element, the dust and the particle impurities are stored in the dust storage box, and the air flow direction is shown by a dotted line in fig. 5; when the suction pipe is difficult to extend into a corner in the dust collection process, dust and particle sundries in the corner need to be blown out, at the moment, a user pulls the shifting block 22 backwards through a forefinger, the shifting block drives the front connecting ring 18 to move backwards for a certain distance in the moving process, so that the sealing column 180 is separated from the air inlet 404, meanwhile, the reversing rod 230 is pressed downwards when the shifting block moves backwards, the current direction of the storage battery and the motor is changed, the motor drives the fan blades to reverse, airflow enters from the air exhaust groove, then sequentially passes through the air inlet groove 403, the annular gap 401, the air inlet 404, the air exhaust channel 202 and the air blowing hole 203 and then is blown out from the suction pipe (the flowing path of the airflow is shown by a dotted line in fig. 6), so that air blowing is realized, and when dust collection is needed again after air blowing, the shifting block is loosened; the shifting block is loosened when dust is required to be absorbed, and the shifting block is pressed down when dust is required to be blown, so that the dust-collecting device is very convenient to use; after the filter element is used, the front end cover is opened, the dust storage box is taken out, dust and sundries in the dust removal box are cleaned, and the filter element is taken out to clean the filter element; when the electric quantity of the storage battery is insufficient, the storage battery is charged through the charging interface 14.

When the outside of the car body needs to be washed, the dust collector can also be used as a spray gun, a water pipe is connected with a water pipe connector, the other end of the water pipe is connected with tap water, water flow sequentially passes through the water pipe connector, the flexible water pipe, the water inlet hole, the annular cavity in the rear connecting ring, the flow guide hole in the guide post, the annular cavity in the front connecting ring, the water spray hole in the sealing post and the exhaust channel and then is sprayed out from the air blowing hole (the path of the water flow is shown by a chain line in fig. 5), and the water flow is sprayed on the surface of the car body to realize car washing operation.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.

Claims

1. A vehicle-mounted dust collector comprises a shell, wherein the front end of the shell is provided with a front end cover, the front end of the front end cover is provided with an air suction joint, the rear end of the shell is provided with a rear end cover, the rear end cover is provided with a plurality of air exhaust grooves, it is characterized in that the front end inside the shell is provided with a dust collecting cylinder, the rear end inside the dust collecting cylinder is provided with a filter element, the front end in the dust collecting barrel is provided with a dust storage box which is connected with the dust collecting barrel in a clamping way, the bottom of the dust storage box is provided with a dust inlet channel, the front end cover is in threaded connection with the shell, a motor base is fixed in the shell at the rear side of the dust collecting barrel, a motor is fixed at the front end of the motor base, fan blades are fixed at the shaft end of the motor, a storage battery is arranged at the rear end of the motor base, a charging interface and a switch which are connected with the storage battery are arranged on the shell, and a plurality of air guide through holes are formed in the edge of the motor base; the dust collecting device comprises a dust inlet channel, a dust storage box, a dust collecting barrel, a front connecting ring, sealing columns, a plurality of guide columns and a pressure spring, wherein a blocking piece is arranged at the inner end of the dust inlet channel, a sliding sleeve is arranged at the bottom surface of the dust storage box, a sliding rod in sliding connection with the sliding sleeve is arranged on the blocking piece, a flange fixed with a shell is formed by extending the rear end of the dust collecting barrel, an annular gap is formed between the dust collecting barrel and the shell, a retaining ring is arranged between the front end of the dust collecting barrel and the shell, a plurality of air inlet grooves are formed in the flange, a plurality of air inlet holes are uniformly distributed in the retaining ring, the position, between the flange and the retaining ring, of the outer side of the dust collecting barrel is sleeved with the front connecting ring, the front end of the front connecting ring is provided with the sealing columns in one-to-one correspondence with the air inlet holes, the rear end of the front connecting ring is fixedly provided with a plurality of guide columns penetrating the flange, and a rear connecting ring is fixed between the rear end of the guide columns; a handle is arranged on the side surface of the shell, and a displacement reversing linkage mechanism for synchronously controlling the front connecting ring to move backwards and reversing the current of the storage battery is arranged on the handle; the displacement reversing linkage mechanism comprises a shifting block and a current reversing switch assembly, wherein a long slotted hole is formed in the inner wall of the shell and corresponds to the handle, the shifting block is positioned on the front side of the upper end of the handle and is in sliding connection with the handle, the rear end of the shifting block penetrates through the handle and extends into the long slotted hole, the current reversing switch assembly is fixed at the rear end of the long slotted hole and is electrically connected with the motor and the storage battery, a reversing rod facing the rear end of the shifting block is arranged at the front end of the current reversing switch assembly, a connecting rod is arranged on the rear connecting ring, one end of the connecting rod is fixedly connected with the rear connecting ring, and the other end of the connecting rod penetrates through the rear end of the shifting block and is fixedly connected with the shifting block; when the shifting block is shifted backwards, the shifting block pulls the rear connecting ring to move backwards through the connecting rod, the sealing column on the front connecting ring is separated from the air inlet hole at the moment, the reversing rod is pressed down by the rear end of the shifting block, the motor rotates reversely after the current is reversed, air is blown at the air suction joint, after the shifting block is loosened, the front connecting ring moves forwards to reset, the air inlet hole is sealed by the sealing column, the reversing rod resets, the motor rotates forwards and backwards, and the air suction joint inhales.

2. The vehicle-mounted vacuum cleaner as claimed in claim 1, wherein the suction pipe is connected to the suction connector, and the suction pipe is screwed to the suction connector.

3. The vehicle-mounted vacuum cleaner as claimed in claim 1, wherein a support cylinder for supporting the dust storage box is provided inside the front cover, the front end of the support cylinder is integrally connected with the suction connector, the support cylinder and the front cover support to form an exhaust passage, and a plurality of circumferentially distributed blowing holes communicated with the exhaust passage are provided at the front end of the support cylinder.

4. The vehicle-mounted vacuum cleaner as claimed in claim 1 or 3, wherein a lower end cover is fixed to a lower end of the handle, a water pipe joint is arranged on the lower end cover, the front connecting ring and the rear connecting ring are both provided with annular cavities, the guide post is provided with guide holes communicated with the annular cavities, the sealing post is provided with water spray holes communicated with the annular cavities, the connecting rod is provided with water inlet holes communicated with the annular cavities, and a flexible water pipe is arranged between the water pipe joint and the connecting rod.

5. The vehicle-mounted dust collector as claimed in claim 1, wherein the current reversing switch assembly comprises a switch housing and two sets of conductive terminals arranged in the switch housing, the reversing rod is connected with the switch housing in a sliding manner, an insulating rod is fixed at the inner end of the reversing rod, movable terminals are fixed at two ends of the insulating rod, the two movable terminals are respectively connected with the motor through wires, and a return spring is arranged between the insulating rod and the shell; the two groups of conductive terminals are respectively positioned at two sides of the movable terminal, each group of conductive terminals comprises a positive conductive terminal and a negative conductive terminal, the positive conductive terminal and the negative conductive terminal in the two groups of lead terminals are distributed in a reverse direction, the positive conductive terminal is electrically connected with the positive electrode of the storage battery, and the negative conductive terminal is electrically connected with the negative electrode of the storage battery.

6. The vehicle-mounted dust collector as claimed in claim 1, wherein a plurality of permanent magnets are fixed at the rear end edge of the filter element, the permanent magnets and the rear end of the dust collecting cylinder are magnetically adsorbed, and a sealing ring is further arranged at the rear end edge of the filter element.