WO2021017110A1

WO2021017110A1 - Dust collector brush head and dust collection method

Info

Publication number: WO2021017110A1
Application number: PCT/CN2019/105375
Authority: WO
Inventors: xing'dong
Original assignee: 山西嘉世达机器人技术有限公司
Priority date: 2019-08-01
Filing date: 2019-09-11
Publication date: 2021-02-04
Also published as: EP3815593B1; US20220142428A1; EP3815593A4; EP3815593A1; CN110710927A; JP7058023B2; JP2021533838A; KR102418364B1; KR20210015750A; CN212213643U

Abstract

Provided are a dust collector brush head and a dust collection method. The dust collector brush head (1) comprises a brush head body (126), a front wiping plate (4), a rear wiping plate (5), a wiping plate driving device and a water spraying assembly, wherein a dust collection pipeline is arranged in the brush head body (126), a dust collection opening (6) is formed at a position, on a front side of the bottom of the brush head body (126), of the dust collection pipeline, and a water spraying opening of the water spraying assembly is arranged in the bottom of the brush head body (126) and located between the front wiping plate (4) and the rear wiping plate (5); the wiping plate driving device is in transmission connection with the front wiping plate (4) and the rear wiping plate (5), and the wiping plate driving device is configured to drive the front wiping plate (4) and the rear wiping plate (5) to reciprocate in opposite directions; and a dust passing hole (44) penetrating the upper end and the lower end of the front wiping plate (4) is formed in the front wiping plate (4), the dust passing hole (44) is located below the dust collection opening (6), and the dust passing hole (44) is configured such that the dust collection opening (6) keeps overlapping with the dust passing hole (44) as the front wiping plate (4) reciprocates. Therefore, an all-in-one cleaning effect of dust collection, dry wiping and wet wiping is achieved, and thorough cleaning of various types of garbage can be achieved, thus remarkably improving a working area, a working efficiency and a cleaning effect of dust collection and cleaning of the dust collector brush head (1).

Description

Vacuum cleaner brush head and cleaning method

Technical field

The present invention relates to the field of vacuum cleaners, and in particular to a vacuum cleaner brush head and a cleaning method.

Background technique

A vacuum cleaner is a cleaning device that uses negative pressure to generate suction to suck and remove dirt, and has been more and more widely used. In the prior art, it is difficult to completely suck off the dust on the surface of the object to be cleaned by solely relying on suction. In order to improve the cleaning effect, a vacuum cleaner brush head with bristles appears in the prior art, and the bristles are used to move the dust so as to be sucked Inhale. However, in the automatic brush heads in the prior art, a kind of bristles are often arranged in a cylindrical shape, which is easy to entangle the hair and cause a high failure rate, and has a small force. Very importantly, in the prior art, the user is required to press the brush head of the vacuum cleaner hard against the ground, which is physically burdensome for the user and the user experience is poor. The solution of the prior art has a small area for sweeping dust, the cylindrical bristles cannot handle large-sized garbage, nor can it handle objects such as hair adhered to the ground, and the user has a laborious cleaning and poor user experience. More importantly, the linkage between the cylindrical bristles and the dust suction port makes it difficult for the two to cooperate effectively, leaving a lot of room for improvement in the dust suction effect.

On the other hand, some brush heads in the prior art are equipped with water spraying devices, but in the process of use, it is easy to spray the garbage on the ground, such as hair, and it is difficult to suck up and clean up on the ground surface. Moreover, moisture is easily sucked into the dust collection system from the dust suction port. Once moisture enters the dust collection system, it is very easy to burn the motor of the dust collection system.

Summary of the invention

technical problem

The solution to the problem

Technical solutions

In order to overcome the shortcomings of the prior art, the present invention provides a cleaner brush head and a dust collection method. The specific technical solutions are as follows:

A vacuum cleaner brush head, comprising a brush head body, a front wiper plate, a rear wiper plate, a wiper plate driving device and a water spray assembly. A dust suction pipe is arranged in the brush head body, and the dust suction pipe is in the A dust suction port is formed on the front side of the bottom of the brush head body, the front wiper and the rear wiper are respectively arranged on the bottom of the brush body, and the front wiper and the rear wiper are respectively provided with Wiping cloth, the wiper driving device is arranged in the body of the brush head, and the water spray port of the water spray assembly is arranged at the bottom of the body of the wiper and is located between the front wiper and the rear wiper ；

The wiper drive device is drivingly connected to the front wiper and the rear wiper, and the wiper drive device is configured to drive the front wiper and the rear wiper to reciprocate in opposite directions;

The front wiper plate is provided with dust passing holes penetrating the upper and lower ends thereof, the dust passing hole is located below the dust suction opening, and the dust passing hole is configured to move with the front wiper when the suction The dust port remains overlapped with the dust through hole.

In a specific embodiment, in the forward or backward direction of the front wiper, the width of the dust passing hole is greater than the width of the dust suction opening to a preset threshold, so that the dust passing hole follows When the front wiper moves back and forth, the dust suction port keeps overlapping with the dust through hole;

Alternatively, in the forward or backward direction of the front wiper, the width of the dust pass hole is smaller than the width of the dust suction port to a preset threshold, so that the dust pass hole reciprocates with the front wiper When moving, the dust suction port keeps overlapping with the dust through hole.

In a specific embodiment, the top of the front wiper is connected to the wiper drive device, the bottom of the front wiper is provided with a dust collecting groove and a wiper installation part, and the front wall of the dust collecting groove is located at the The bottom front edge of the front wiper, the rear wall of the dust collecting groove is connected to the rag mounting part, and the dust passing hole is arranged in the dust collecting groove.

In a specific embodiment, the front wall of the dust collection tank has a plurality of gaps arranged at intervals, and each of the gaps is connected to the dust collection tank respectively.

In a specific embodiment, the dust collecting groove extends from the middle to both sides at the bottom front edge of the front wiper board, and occupies more than half of the length of the bottom front edge of the front wiper board.

In a specific embodiment, the number of the dust suction openings is one or more, the number of the dust passage holes is one or more, and when the number of the dust suction openings is more than The dust holes are in one-to-one correspondence with the dust suction openings or one dust through hole overlaps a plurality of the dust suction openings.

In a specific embodiment, the rear wall of the dust collecting groove has a plurality of perforated knives, and the blade of the perforated knives faces the dust collecting groove.

In a specific embodiment, the front wall of the dust collecting groove also has a plurality of perforated knives, and the blade of the perforated knives faces the dust collecting groove.

In a specific embodiment, the width of an area of the dust collecting groove not provided with the dust through hole is smaller than the width of the dust through hole.

In a specific embodiment, the wiper drive device includes a crankshaft, a first connecting rod and a second connecting rod, and the crankshaft includes a crankshaft rod, a first journal and a second shaft formed on the crankshaft rod One end of the first link is rotatably sleeved on the first shaft journal, the other end is hinged to the top of the front wiper, and one end of the second link is rotatably sleeved on the The other end of the second journal is hinged to the top of the rear wiper.

In a specific embodiment, the axis of the first journal and the axis of the second journal are coplanar with the axis of rotation of the crankshaft, and the axis of the first journal The distance between the center line and the axis of rotation of the crankshaft rod is equal to the distance between the axis line of the second journal and the distance between the axis of rotation of the crankshaft rod.

In a specific embodiment, the wiper drive device is further configured to drive the front wiper and the rear wiper to reciprocate in opposite directions, so that the crankshaft maintains self-balance.

In a specific embodiment, at least one set of guiding devices is provided between the front wiper and the bottom of the brush head body;

The guide device includes a roller, a roller seat, a guide rail, and a guide rail seat. The roller seat is fixed on one of the front wiper and the brush head body, and the roller is rotatably installed on the roller seat , The roller is in rolling contact with the other of the front wiper and the brush head body, the guide rail seat is fixed on one of the front wiper and the brush head body, and the guide rail is fixed on On the other of the front wiper and the brush head body, the rail seat is used to limit the moving direction of the rail bar.

In a specific embodiment, at least one set of guiding devices is provided between the back wiper and the bottom of the brush head body;

The guide device includes a roller, a roller seat, a rail bar, and a guide rail seat. The roller seat is fixed on one of the rear wiper and the brush head body, and the roller is rotatably installed on the roller seat , The roller is in rolling contact with the other of the back wiper and the brush head body, the rail seat is fixed on one of the back wiper and the brush head body, and the rail bar is fixed on On the other of the rear wiper board and the brush head body, the rail seat is used to limit the moving direction of the rail bar.

In a specific embodiment, the guide rail seat includes a first seat body and a second seat body, and the guide rail strips pass through the gap between the first seat body and the second seat body.

In a specific embodiment, the spray nozzle of the water spray assembly is provided with a nozzle, and the nozzle is detachably installed at the bottom of the brush head body.

In a specific embodiment, the dust suction pipeline includes an internal pipeline and a flexible joint. The internal pipeline is located in the brush head body and has one end connected to the dust suction port, and the other end of the inner tube It is inserted into the flexible joint, and the flexible joint is fixed on the brush head body.

In a specific embodiment, the flexible joint includes a first sleeve, a second sleeve, and an outer tube. The first end of the first sleeve is inserted into the brush head body, and the first sleeve The second end of the tube is hinged to the second sleeve, the outer tube is sleeved in the second sleeve, and the inner pipeline is inserted into the outer tube after passing through the first sleeve, The outer tube and the second sleeve are locked by a key.

In a specific embodiment, a wire plug is fixed between the outer tube and the second sleeve, and the wire plug passes through the second sleeve and the first sleeve.

In a specific embodiment, the water spray assembly includes a water tank, the water tank includes a tank body, a tank cover and a water barrier, the tank cover is arranged on the top of the tank body, and the lower part of the tank body has There is a water outlet, the water-proof pad is arranged in the box body and divides the box body into an upper cavity and a lower cavity, the lower cavity is used for water storage, and the height of the central area of the water-proof pad is smaller than the edge The height of the area, and the central area of the water barrier has a water injection port for water injection into the lower cavity, and the tank cover is configured to open or close the water injection port.

A method of vacuuming, using the vacuum cleaner brush head as described in any one of the foregoing to perform the following operations:

Start the negative pressure generating device so that garbage is sucked away by the dust suction pipe at the dust suction port;

Starting the wiper driving device is configured to drive the front wiper and the rear wiper to reciprocate in opposite directions;

The water spray assembly is activated according to a preset time interval and water volume, so that the front wiper board performs dry wipe on the surface to be cleaned, and the rear wiper board performs wet wipe on the surface to be cleaned.

In a specific embodiment, it further includes:

It is detected whether the brush head body is on the ground, and the water spray assembly is closed when the brush head body leaves the ground.

In a specific embodiment, it further includes:

Receive control instructions issued by the mobile terminal to control the operation of the brush head of the vacuum cleaner. The control instructions include the opening and closing instructions of the water spray assembly, the opening and closing instructions of the wiper drive device, the opening and closing instructions of the negative pressure generating device, the water spray time interval, and the air suction volume. One or more of.

The present invention has at least the following beneficial effects:

According to the cleaner brush head and the dust collection method provided by the present invention, during the cleaning process, the front wiper and the rear wiper move back and forth in opposite directions. Compared with the cylindrical bristles in traditional vacuum cleaners, due to the front and back movement of the wiper, the wiper can have a larger cleaning area, even extending from the left edge to the right edge of the bottom of the brush head body. Due to the larger cleaning area, Can significantly improve the efficiency of dust collection and cleaning. Moreover, since the front wiper board and the rear wiper board reciprocate in opposite directions, compared with the one-way rotating wipe performed by the cylindrical bristles in the traditional vacuum cleaner, the reciprocating wipe cleaning effect is significantly improved. Moreover, since the ground is no longer wiped by rolling and wiping, the problem of entanglement of the cylindrical bristles in the prior art is overcome. Moreover, compared with cylindrical bristles, the rag and the ground itself can have greater force in this solution, which is convenient for cleaning the garbage firmly bonded to the ground.

On the other hand, since the front wiper is provided with dust passing holes penetrating the upper and lower ends of the front wiper, the dust suction port keeps overlapping with the dust passing holes. As a result, when the negative pressure generating device is activated, when the garbage enters the dust collection tank of the front wiper, most of the garbage can be sucked away through the dust suction port when it is not in contact with the rag on the front wiper, and the remaining on the ground The remaining ash that has not been sucked up is disposed of by the rags on the subsequent front inserts and rear wipers. In addition, the rag on the front wiper can push large-sized and heavy garbage forward to the area where the dust suction port is located, and then suck it from the dust suction port, that is, in the present invention, the front wiper pushes the garbage to the vacuum cleaner in a directional direction. Compared with the combination of the rolling brush and the dust suction port, the cylindrical bristles and the dust suction port in the prior art, the two realize the efficient linkage dust collection and cleaning effect. It has significant technological progress, and the significantly improved dust collection and cleaning effect brought by this linkage is unpredictable in the prior art.

Further, when the dust collection pipeline is performing the dust collection operation, the air in the dust collection tank is drawn into to form a negative pressure space. Under the action of the air pressure difference, the wiper on the wiper board is brought into close contact with the ground. The brush head of the vacuum cleaner can also be in close contact with the ground without the user's pressing force. On the other hand, the friction between the rag and the ground is significantly enhanced, and the firmly bonded garbage on the ground can be removed, which cannot be achieved by the prior art , Thus has significant progress.

Furthermore, the front wiper is provided with dust passing holes penetrating the upper and lower ends of the front wiper, which can significantly reduce the space occupied by the dust suction port on the bottom of the brush head body, thereby increasing the area ratio of the wiper wiper on the bottom of the brush head body.

Further, the water spray port of the water spray assembly is arranged at the bottom of the brush head body and located between the front wiper board and the rear wiper board. As a result, during the travel of the brush head, the front wiper contacts the dry ground, and the rear wiper contacts the wet ground, so that the front wiper performs dry wipe on the surface to be cleaned to realize the cleaning of floating dust and other garbage. Compared with simple dry wiping or simple wet wiping in the prior art, wet wiping can handle multiple types of garbage and achieve a better comprehensive cleaning effect. As a result, the integrated cleaning effect of dust suction, dry wipe and wet wipe is realized, and the dust suction and cleaning effects are further improved significantly.

Furthermore, because the water spray port is arranged between the front wiper and the rear wiper, the dust suction port and the water spray port are separated by the rag on the front insert, which prevents the cleaning liquid sprayed from the water nozzle from entering the suction The possibility of dust opening prevents water damage to the motor of the dust suction system, that is, the ingenious structure achieves both the improvement of cleaning effect and the improvement of safety.

In summary, the present invention can significantly improve the cleaning area and cleaning effect of the vacuum cleaner brush head, and has outstanding substantive features and significant progress compared with the existing ones. And it should be noted that although the technical effects of the aforementioned technical features are described in sections, the parts are not separated, but a coordinated overall technical solution.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described below in detail with accompanying drawings.

The beneficial effects of the invention

Brief description of the drawings

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

Figure 1 is a top perspective view of the brush head of the vacuum cleaner in embodiment 1;

Figure 2 is a bottom perspective view of the cleaner brush head in embodiment 1;

Figure 3 is a bottom perspective view of the front wiper in Example 1;

Fig. 4 is a top perspective view of the front wiper in embodiment 1;

Figure 5 is a bottom perspective view of the vacuum cleaner brush head in Example 1 after the front wiper is removed;

6 is a schematic diagram of a part of the internal structure of the cleaner brush head in Embodiment 1;

Figure 7 is a schematic diagram of Figure 6 after removing the dust suction pipe;

Figure 8 is a schematic diagram of the crankshaft in embodiment 1;

Figure 9 is a cross-sectional view of the brush head of the vacuum cleaner in Embodiment 1;

Figure 10 is a perspective view of the box in Example 1;

Figure 11 is a perspective view of the water-proof cushion in Example 1;

Figure 12 is an exploded view of the box cover in Example 1;

Figure 13 is a cross-sectional view of the brush head of the vacuum cleaner in Embodiment 1;

14 is a schematic diagram of the flexible joint in Example 1;

Figure 15 is an exploded view of the flexible joint in Example 1;

Figure 16 is a bottom perspective view of a front wiper in Embodiment 2;

FIG. 17 is a bottom perspective view of another front wiper in Embodiment 2. FIG.

Symbol description of main components:

1- vacuum cleaner brush head; 2. 126- brush head body; 3- second sleeve; 4- front wiper plate; 41- front wall of dust collection tank; 42- dust collection tank; 43- wiper installation part; 44- Through the dust hole; 45-notch; 46-the rear wall of the dust collecting tank; 47-connecting seat; 5-rear wiper board; 6-dust suction port; 7-nozzle; 8,24-roller seat; 9,22-rail Articles; 10, 23-roller; 11-rail seat; 12-water tank; 13-internal pipeline; 14-first casing; 15- casing positioning seat; 16-drive motor; 17-pumping device; 18- The first connecting rod; 19-second connecting rod; 20-crankshaft; 201-crankshaft rod; 202-first journal; 203-second journal; 25-outer tube; 26-lock key; 27-wire plug.

Invention embodiment

Embodiments of the invention

Example 1

This embodiment provides a vacuum cleaner brush head 1, and the vacuum cleaner brush head 1 can be used as a brush head of a vacuum cleaner.

As shown in Figures 1 to 3, the cleaner brush head 1 includes a brush head body 2, a front wiper board 4, a rear wiper board 5, a wiper board driving device and a water spray assembly. The brush head body 2 is provided with a dust suction pipe, and the dust pipe is formed with a dust suction port 6 on the front side of the bottom of the brush head body 2. The front wiper board 4 and the rear wiper board 5 are respectively arranged on the bottom of the brush head body 2 , The front wiper board 4 and the rear wiper board 5 are respectively provided with wipes, the wiper drive device is arranged in the brush head body 2, and the water nozzle of the water spray assembly is arranged at the bottom of the brush head body 2 and located at the front wiper board 4 and After wipe the board between 5. The wiper drive device is drivingly connected to the front wiper 4 and the rear wiper 5, and the wiper drive device is configured to drive the front wiper 4 and the rear wiper 5 to reciprocate in opposite directions.

The front wiper 4 is provided with dust passing holes 44 penetrating the upper and lower ends thereof. The dust passing holes 44 are configured to have a preset size, so that the dust suction opening 6 is always overlapped by the dust passing holes 44 when the front wiper 4 reciprocates. Specifically, as shown in FIG. 2, in the forward or backward direction of the front wiper 4, the width of the dust passing hole 44 is greater than the width of the dust suction opening 6 to a preset threshold, so that the dust passing hole 44 follows the front wiper 4 4 When reciprocating, the dust suction port 6 keeps overlapping with the dust passing hole 44. Among them, the specific value of the preset threshold value can be selected by those skilled in the art according to the size of one of the dust suction port 6 and the dust passage hole 44, and it is a variable number, as long as the dust passage hole 44 reciprocates with the front wiper 4 When moving, the dust suction port 6 should be kept overlapping with the dust passing hole 44, which will not be listed one by one in this example. It should be noted that, in another embodiment, in the forward or backward direction along the front wiper, the width of the dust pass hole is smaller than the width of the dust suction port to a preset threshold, so that the dust pass hole follows When the front wiper moves back and forth, the dust suction port keeps overlapping with the dust passing hole.

Specifically, the brush head body 2 forms a shell structure to install the front wiper 4, the rear wiper 5, the wiper drive device, the water spray assembly, the dust suction pipeline and other accessories. In this embodiment, the dust suction pipeline is connected to the negative pressure generating device in the vacuum cleaner system through a joint and an outer tube 25. When the negative pressure generating device is activated, a negative pressure is generated at the dust suction port 6 to suck in dust and other garbage.

Preferably, the front wiper 4 and the rear wiper 5 are long plate-shaped structures, and they even extend from the left edge of the bottom of the brush head body 2 to the peripheral edge, thereby making the front wiper 4 and the rear wiper 5 Compared with the cylindrical wiper in the prior art, the effective cleaning area of the vacuum cleaner brush head 1 is significantly improved. Preferably, the wipers on the front wiper board 4 and the rear wiper board 5 are detachably installed, for example, the wipers are glued to the front side board and the rear wiper board 5 through a nylon buckle-like bonding.

FIGS. 6-9 show a preferred wiper drive device, which includes a crankshaft 20, a first connecting rod 18, and a second connecting rod 19. The crankshaft 20 includes a crankshaft rod 201, a first journal 202 and a second journal 203 formed on the crankshaft rod 201, one end of the first connecting rod 18 is rotatably sleeved on the first journal 202, and the other end The top of the front wiper 4 is hinged, one end of the second connecting rod 19 is rotatably sleeved on the second journal 203, and the other end is hinged on the top of the rear wiper 5. That is, the crankshaft 20, the first connecting rod 18, and the front wiper 4 constitute a set of crank connecting rod mechanisms, and the crankshaft 20, the second connecting rod 19, and the rear wiper 5 constitute another set of crank connecting rod mechanisms. Among them, in order to enable the crankshaft 20 to rotate, the wiper drive device further includes a drive motor 16 and a transmission mechanism arranged in the brush head body 2. The drive motor 16 drives the crankshaft 20 to rotate through the rotation mechanism, and the transmission mechanism includes a timing belt and a vortex worm. Transmission box or other structure types.

Preferably, the axis of the first journal 202 and the axis of the second journal 203 are coplanar with the axis of rotation of the crankshaft rod 201, and the axis of the first journal 202 and the axis of rotation of the crankshaft 201 The distance between the centers is equal to the distance between the axis of the second journal 203 and the distance between the rotation axis of the crankshaft rod 201. As a result, when the crankshaft 20 rotates in one direction, the front wiper 4 and the rear wiper 5 are driven to reciprocate in opposite directions.

Preferably, the wiper drive device is also configured to drive the front wiper 4 and the rear wiper 5 to reciprocate in opposite directions, so that the crankshaft 20 maintains self-balance. Specifically, by presetting the specific size, weight, shape and other parameters of the first journal 202, the second journal 203, the first connecting rod 18, the second connecting rod 19, the front wiper 4 and the rear wiper 5, , Because the crankshaft 20 maintains self-balance during the rotation process. As a result, the entire vacuum cleaner brush head 1 can be kept stable when the front wiper 4 and the rear wiper 5 reciprocate in opposite directions, avoid unnecessary vibration, significantly reduce noise and reduce the wear of the wiper drive device.

In this embodiment, the number of water jets is one or more, preferably more than one. FIG. 2 shows a situation where the number of water spray ports is two, and the two water spray ports are both arranged at the bottom of the brush head body 2 and located between the front wiper board 4 and the rear wiper board 5. Specifically, the water spray assembly also includes a water tank 12, a pumping device 17 and a water supply pipeline arranged inside the brush head body 2. The water tank 12 is connected to the water spray ports through the water supply pipeline, and the water pump is arranged in the water supply pipeline for The cleaning liquid in the water tank 12 is pressurized and sprayed out from the spray port.

9-12, the water tank 12 includes a tank body 121, a tank cover 122, and a water blocking pad 123. The tank cover 122 is arranged on the top of the tank body 121, and the lower part of the tank body 121 has a water outlet. The water-proof cushion 123 is arranged in the box 121 and divides the box 121 into an upper cavity 124 and a lower cavity 125. The lower cavity 125 is used for water storage. The height of the central area of the water-proof cushion 123 is smaller than the height of the edge area, and the partition The central area of the water cushion 123 has a water injection port 131 for water injection into the lower cavity 125, and the tank cover 122 is configured to open or close the water injection port 131.

Preferably, the height of the waterproof pad 123 decreases continuously and smoothly from the edge area to the central area.

Preferably, the bottom of the box 121 is recessed inward to form a receiving groove 130.

Preferably, the waterproof pad 123 is an elastomer, such as a silicone waterproof pad 123 with elasticity.

Wherein, the bottom of the brush head body 126 is provided with a nozzle, and the nozzle is connected to the water outlet through a water delivery pipeline. The water pump is configured to pump the cleaning liquid in the lower cavity 125 to the nozzle to spray out. Specifically, the water pump is connected to the water delivery pipeline, and when the water pump is started, pressure is generated to remove the cleaning liquid in the water tank 12.

In this embodiment, the edge area of the water barrier 123 has an annular protrusion 127 protruding downward and extending around the central area. The top of the box 121 has a first annular groove 132, and the annular protrusion 127 is installed in the first annular groove. 132 within. The upper surface of the annular protrusion 127 is recessed to form a second annular groove 133, the upper surface of the brush head body 126 has an opening, the box cover 122 is openably installed at the opening, and the brush head body 126 is on the inner surface of the opening. A cylindrical protrusion 128 protrudes downward, and the cylindrical protrusion 128 is installed in the second annular groove 133 so that the box cover 122, the cylindrical protrusion 128 and the box body 121 enclose a closed space.

Preferably, the box cover 122 includes a cover plate 1221 and a cylinder body 1222 that are connected as a whole. The cover plate 1221 exposes the upper surface of the brush head body 126, the cylinder body 1222 is inserted into the opening, and the cylinder body 1222 is sheathed with an elastic sealing ring 129. The sealing ring 129 abuts the inner wall of the opening.

In this embodiment, the cleaning device further includes a wiper, a wiper drive device, and a dust suction pipe. The dust suction pipe is arranged in the brush head body 126, and the dust suction pipe is formed with a dust suction port at the bottom of the brush head body 126. The wiper board is arranged at the bottom of the brush head body 126, a wiper is arranged on the bottom of the wiper board, and the wiper board driving device is arranged in the brush head body 126 to drive the wiper board to move.

Thus, on the one hand, the water-proof pad 123 can be used to separate the cleaning liquid stored in the lower cavity 125 from the upper cavity 124, so as to avoid possible water leakage caused by the high-speed vibration of the cleaning device or the shaking of the cleaning liquid during the movement and impact on the tank cover 122. Even if a small amount of cleaning liquid overflows above the water blocking pad 123 during the shaking process, since there is a certain distance between the water blocking pad 123 and the tank cover 122, there is very little cleaning solution that can touch the tank cover 122. Moreover, since the height of the central area of the water barrier 123 is smaller than the height of the edge area, even if a small amount of cleaning fluid overflows above the water barrier 123 during the shaking process, it can be collected to the water injection port in time under the action of its own gravity. 131 falls into the lower cavity 125. Moreover, during the water injection process, it is not necessary to completely aim at the water injection port 131, and the cleaning liquid can be collected to the water injection port 131 and fall into the lower cavity 125, which improves the efficiency of water injection and prevents the cleaning liquid from being spilled during the water injection process.

At the same time, because the water blocking pad 123 can cleverly prevent water leakage, there is no need to completely seal the tank cover 122, so that the water tank can be filled with air in time to eliminate the air pressure difference between the inside and outside of the water tank, which is convenient for spraying water. The system smoothly outputs the cleaning liquid in the water tank.

According to the cleaner brush head 1 provided in this embodiment, during the cleaning process, the front wiper 4 and the rear wiper 5 reciprocate in opposite directions. Compared with the cylindrical bristles in a traditional vacuum cleaner, compared with the one-way rotating wiping performed by the cylindrical bristles in a traditional vacuum cleaner, the cleaning effect of reciprocating wiping is significantly improved. Moreover, since the ground is no longer wiped by rolling and wiping, the problem of entanglement of the cylindrical bristles in the prior art is overcome. Moreover, compared with cylindrical bristles, the rag and the ground can have a greater force in this solution, which is convenient for cleaning the rubbish firmly adhered to the ground.

On the other hand, since the front wiper 4 is provided with dust passing holes 44 penetrating the upper and lower ends thereof, the dust passing holes 44 are configured to have a preset size, so that when the front wiper 4 reciprocates, the dust suction port 6 is always exposed to dust. The holes 44 overlap. Thus, when the negative pressure generating device is activated, when the garbage enters the dust passage hole 44 of the front wiper 4, most of the garbage can be sucked away through the dust suction port 6 without contacting the rag on the front wiper 4 , The remaining ash on the ground that has not been sucked up is disposed of by the rags on the subsequent front insert 4 and rear wiper 5. In addition, the rag on the front wiper can push large-sized and heavy garbage forward to the area where the dust suction port 6 is located, and the wipe on the front wiper 4 can push dust, hair and other garbage forward to the dust suction port. 6 is located in the area, and then sucked in from the dust suction port 6, that is, in this embodiment, the front wiper 4 pushes the garbage to the dust suction port 6 in a directional direction. Compared with the combination of the roller brush and the dust suction port 6, the cylindrical bristles and the dust suction port 6, or poor linkage, it is difficult to transport the ground waste to the dust suction port 6. This embodiment has significant technical progress. Moreover, the significantly improved dust suction and cleaning effect brought about by this linkage is difficult to predict in the prior art.

Further, when the dust collection pipeline is performing the dust collection operation, the air in the dust collection tank 42 is drawn in to form a negative pressure space. Under the action of the air pressure difference, the wiper on the wiper board is brought into close contact with the ground. The brush head of the vacuum cleaner can also be in close contact with the ground without the user's pressing force. On the other hand, the friction between the rag and the ground is significantly enhanced, and the firmly bonded garbage on the ground can be removed, which cannot be achieved by the prior art , Which has made significant progress.

Furthermore, the front wiper 4 is provided with dust passing holes 44 penetrating the upper and lower ends of the front wiper 4, which can significantly reduce the space occupied by the dust suction port 6 on the bottom of the brush head body 2.

In summary, this embodiment can achieve the technical effect of significantly improving the cleaning area and cleaning effect of the vacuum cleaner brush head 1, and has outstanding substantive features and significant progress compared with the existing ones. It should also be noted that although the technical effects of the aforementioned technical features are described in sections, each part is not separated, but is an overall technical solution for coordination, cooperation, and linkage.

This embodiment also provides a dust collection method, using the cleaner brush head 1 in this embodiment to perform the following operations:

Start the negative pressure generating device to suck the garbage away by the dust suction pipe at the dust suction port 6;

Starting the wiper drive device is configured to drive the front wiper 4 and the rear wiper 5 to reciprocate in opposite directions;

The water spray assembly is activated according to the preset time interval and water volume, so that the front wiper 4 performs dry wipe on the surface to be cleaned, and the rear wiper 5 performs wet wipe on the surface to be cleaned.

Thus, during the travel of the vacuum cleaner brush head 1, the front wiper 4 contacts the dry ground, the rear wiper 5 touches the wet ground, so that the front wiper 4 performs dry wipe on the surface to be cleaned, and the rear wiper 5 performs wet wipe on the surface to be cleaned. . And because the front wiper 4 is dry wipe, it rubs and pushes dust and other garbage in a relatively dry state, and it is easier to push larger-sized garbage to the dust suction port 6, while small particles of dry dust are raised from the ground and then The dust suction port 6 sucks, and the simple dry wipe in the prior art cannot have the effect of cleaning the ground, and the cleaning effect is far inferior to this embodiment. In the prior art, the simple wet wipe has poor dust absorption ability, and the dust is still on the ground after the water evaporates. The wet wipe in the prior art, because the spray nozzle is at the front, is easy to spray wet hair on the ground and stick to it. The ground surface is difficult to pick up and clean, and its cleaning effect is far inferior to this embodiment. Therefore, the solution in this embodiment realizes the integrated cleaning effect of dust suction, dry wipe, and wet wipe, can handle multiple types of garbage, and further significantly improves the dust suction and cleaning effects.

As shown in Figures 4-8 and 13, the top of the front wiper 4 is connected to the wiper drive device. Preferably, a connecting seat 47 is provided on the top of the front wiper 4, and a hinge shaft is penetrated on the connecting seat 47, The first connecting rod 18 rotatably passes through the hinge shaft. Correspondingly, the top transmission of the rear wiper 5 is connected to the wiper drive device. Preferably, the top of the rear wiper 5 is provided with a connecting seat 47, the connecting seat 47 is provided with a hinge shaft, and the second connecting rod 19 rotatably passes through Set on the hinge shaft.

As shown in Figures 2 to 5, the bottom of the front wiper 4 has a dust collecting groove 42 and a rag mounting part 43, the front wall 41 of the dust collecting groove is located at the bottom front edge of the front wiper 4, and the rear wall 46 of the dust collecting groove The rag mounting part 43 is connected, and the dust through hole 44 is provided in the dust collecting groove 42. Since the front wiper 4 includes the dust collecting groove 42, the rag on the cloth mounting part 43 on the rear side of the dust collecting groove 42 first pushes the garbage into the integrated groove, and then collects the dust in the dust collecting groove 42 to the dust hole 44 , And then sucked away by the dust suction port 6. As a result, compared with the prior art, the effective suction area of the dust suction port 6 can be significantly increased, the suction area of the vacuum cleaner brush head 1 can be increased, and the cleaning efficiency can be improved.

As shown in FIGS. 2 to 4, the front wall 41 of the dust collecting tank has a plurality of notches 45 arranged at intervals, and each notch 45 is connected to the dust collecting tank 42 respectively. In this embodiment, because the notch 45 on the front wall 41 of the dust collection tank is matched with the dust collection tank 42, so that when the vacuum cleaner brush head 1 travels or the dust collection pipeline is working, large-sized garbage can enter the dust collection through the notch 45 The groove 42 is then collected in the dust collecting groove 42 to the dust hole 44, and then sucked away by the dust suction port 6. As a result, the dust collection and cleaning effects for large-size garbage are significantly improved.

Preferably, the dust collecting groove 42 extends from the middle to both sides at the bottom front edge of the front wiper 4 and occupies more than half the length of the bottom front edge of the front wiper 4. Thus, the dust collection and cleaning area of the cleaner brush head 1 can be further increased.

In this embodiment, the number of dust suction openings 6 is one or more, and the number of dust passing holes 44 is one or more. When the number of dust suction ports 6 is multiple, the dust-pass holes 44 correspond to the dust-suction ports 6 one-to-one or one dust-pass hole 44 overlaps multiple dust-suction ports 6, that is, one dust-pass hole 44 overlaps one dust-suction port 6 , Or one dust hole 44 overlaps multiple dust suction ports 6.

Preferably, the width of the area of the dust collecting groove 42 not provided with the dust hole 44 is smaller than the width of the dust hole 44. As a result, the area of the rag mounting portion 43 can be made larger, thereby increasing the cleaning area.

Preferably, at least one set of guiding devices is provided between the front wiper 4 and the bottom of the brush head body 2. More preferably, the guiding device includes a roller 10, a roller seat 8, a rail bar 9, and a guide rail seat 11. The roller seat 8 is fixed on one of the front wiper 4 and the brush head body 2, and the roller 10 is rotatably installed on the roller seat 8. On the top, the roller 10 is in rolling contact with the other of the front wiper 4 and the brush head body 2, the rail seat 11 is fixed on one of the front wiper 4 and the brush head body 2, and the guide rail is fixed on the front wiper 4 and the brush head body On the other of 2, the rail seat 11 is used to limit the moving direction of the rail bar 9.

Preferably, at least one set of guiding devices is provided between the rear wiper 5 and the bottom of the brush head body 2. More preferably, the guiding device includes a roller 23, a roller seat 24, a rail bar 22, and a rail seat (not shown in the figure). The roller seat is fixed on one of the rear wiper 5 and the brush head body 2, and the roller is rotatably installed On the roller seat, the roller is in rolling contact with the other of the rear wiper board 5 and the brush head body 2, the guide rail seat is fixed on one of the rear wiper board 5 and the brush head body 2, and the guide rail is fixed on the rear wiper board 5 and the brush head On the other of the main body 2, the rail seat is used to limit the moving direction of the rail bar.

Preferably, the guide rail seat includes a first seat body and a second seat body, and a guide rail is penetrated in the gap between the first seat body and the second seat body.

Preferably, the spray nozzle of the water spray assembly is provided with a nozzle 7 which is detachably installed at the bottom of the brush head body 2.

In this embodiment, the dust suction pipeline includes an internal pipeline 13 and a flexible joint. The internal pipeline 13 is located in the brush head body 2 and has one end connected to the dust suction port 6, and the other end of the inner pipe is inserted into the flexible joint. Fixed on the body 2 of the brush head.

Figures 6 and 13-14 show a preferred flexible joint. The flexible joint includes a first sleeve 14, a second sleeve 3 and an outer tube 25. The first end of the first sleeve 14 is inserted into the brush. Head body 2, the second end of the first sleeve 14 is hinged with the second sleeve 3, the outer tube 25 is sleeved in the second sleeve 3, and the inner pipeline 13 passes through the first sleeve 14 and then connects with the outer tube 25 Insertion, the outer tube 25 and the second sleeve 3 are locked by a key 26. In this way, the flexible connection of the outer tube 25 of the dust suction pipeline in the cleaner brush head 1 is realized, and it is convenient for quick disassembly and assembly.

Preferably, a wire plug 27 is fixed between the outer tube 25 and the second sleeve 3, and the wire plug 27 passes through the second sleeve 3 and the first sleeve 14.

In this embodiment, the brush head body 2 is preferably further provided with a position sensor for detecting whether the brush head body 2 leaves the ground. Methods of vacuuming also include:

It is detected whether the brush head body 2 is on the ground. When the brush head body 2 leaves the ground, the water spray assembly is closed.

In this embodiment, the dust collection method further includes:

Receive control instructions sent by the mobile terminal to control the operation of the vacuum cleaner brush head 1. The control instructions include one of the opening and closing instructions of the water spray assembly, the opening and closing instructions of the wiper drive device, the opening and closing instructions of the negative pressure generating device, the water spray time interval, and the air suction volume. Kind or more. In this way, wireless intelligent control of the brush head 1 of the vacuum cleaner can be realized through devices such as mobile phones.

Example 2

This embodiment provides a vacuum cleaner brush head 1, and the vacuum cleaner brush head 1 can be used as a brush head of a vacuum cleaner. Compared with embodiment 1, the main difference of this embodiment is:

As shown in FIG. 16, the rear wall 46 of the dust collecting groove has a plurality of tooth knives, and the blade of the tooth knives faces the dust collecting groove 42. Among them, the shape of the tooth knife includes triangle teeth, trapezoidal teeth, comb teeth and other shapes.

Therefore, when encountering hair and other garbage, the toothed knife can first scoop up the garbage and be sucked away through the dust suction port 6, which can improve the effect of sucking the hair, and eliminate or reduce the hair before it can be sucked in. The dust port 6 and the hair has been caught under the rag further improves the cleaning effect.

Preferably, as shown in FIG. 17, the transition portion between the wiper installation portion 43 and the rear wall 46 of the dust collecting groove protrudes toward the working surface relative to the wiper installation portion 43, and the toothed knife is formed on the protruding transition portion.

The other features in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

What has been disclosed above are only a few specific implementation scenarios of the present invention, but the present invention is not limited thereto, and any changes that can be thought of by those skilled in the art should fall into the protection scope of the present invention.

Claims

A vacuum cleaner brush head, which is characterized in that it comprises a brush head body, a front wiper board, a rear wiper board, a wiper board driving device, and a water spray assembly. The brush head body is provided with a dust suction pipeline, and the dust suction pipe A dust suction port is formed on the front side of the bottom of the brush head body, the front wiper board and the rear wiper board are respectively arranged at the bottom of the brush head body, the front wiper board and the rear wiper board Wiping cloths are respectively arranged on the upper part, the wiper drive device is arranged in the body of the brush head, and the water spray port of the water spray assembly is arranged at the bottom of the body of the brush head and is located at the front wiper and the rear wiper. Between wipes

The wiper drive device is drivingly connected to the front wiper and the rear wiper, and the wiper drive device is configured to drive the front wiper and the rear wiper to reciprocate in opposite directions;

The front wiper plate is provided with dust passing holes penetrating the upper and lower ends thereof, the dust passing hole is located below the dust suction opening, and the dust passing hole is configured to move with the front wiper when the suction The dust port remains overlapped with the dust through hole.
The vacuum cleaner brush head according to claim 1, wherein in the forward or backward direction of the front wiper, the width of the dust through hole is greater than the width of the dust suction port to a preset threshold, The dust suction port keeps overlapping with the dust passage when the dust passage hole reciprocates with the front wiper;

Alternatively, in the forward or backward direction of the front wiper, the width of the dust pass hole is smaller than the width of the dust suction port to a preset threshold, so that the dust pass hole reciprocates with the front wiper When moving, the dust suction port keeps overlapping with the dust through hole.
The vacuum cleaner brush head according to claim 1 or 2, characterized in that the top of the front wiper is connected to the wiper driving device, the bottom of the front wiper has a dust collecting groove and a wiper installation part, so The front wall of the dust collecting groove is located at the front edge of the bottom of the front wiper, the rear wall of the dust collecting groove is connected to the rag mounting part, and the dust through hole is arranged in the dust collecting groove.
The cleaner brush head according to claim 3, wherein the front wall of the dust collecting groove has a plurality of gaps arranged at intervals, and each of the gaps is connected to the dust collecting groove.
The vacuum cleaner brush head of claim 4, wherein the dust collecting groove extends from the middle to both sides at the bottom front edge of the front wiper board, and occupies half of the bottom front edge of the front wiper board Above length.
The vacuum cleaner brush head according to claim 3, wherein the number of the dust suction opening is one or more, the number of the dust passing hole is one or more, and the number of the dust suction opening is When there are more than one, the dust passing holes correspond to the dust suction openings one-to-one or one dust passing hole overlaps a plurality of the dust suction openings.
The cleaner brush head according to claim 3, wherein the rear wall of the dust collecting groove has a plurality of perforated knives, and the blade of the perforated knives faces the dust collecting groove.
The cleaner brush head according to claim 7, wherein the front wall of the dust collecting groove also has a plurality of perforated knives, and the blades of the perforated knives face the dust collecting groove.
The vacuum cleaner brush head according to claim 3, wherein the width of the dust collecting slot not provided with the dust through hole is smaller than the width of the dust through hole.
The vacuum cleaner brush head according to claim 1, wherein the wiper driving device includes a crankshaft, a first connecting rod and a second connecting rod, the crankshaft includes a crankshaft rod, and a second connecting rod formed on the crankshaft rod. A journal and a second journal, one end of the first link is rotatably sleeved on the first journal, the other end is hinged to the top of the front wiper, one end of the second link It is rotatably sleeved on the second shaft journal, and the other end is hinged to the top of the rear wiper.
The vacuum cleaner brush head according to claim 10, wherein the axis of the first journal, the axis of the second journal and the axis of rotation of the crankshaft are coplanar, and The distance between the axis line of the first journal and the axis of rotation of the crankshaft rod and the distance between the axis line of the second journal and the distance between the axis of rotation of the crankshaft equal.
The vacuum cleaner brush head according to claim 1 or 10, wherein the wiper drive device is further configured to drive the front wiper and the rear wiper to reciprocate in opposite directions, and the crankshaft remains free balance.
The vacuum cleaner brush head according to claim 1 or 10, wherein at least one set of guide devices is provided between the front wiper and the bottom of the brush head body;

The guide device includes a roller, a roller seat, a guide rail, and a guide rail seat. The roller seat is fixed on one of the front wiper and the brush head body, and the roller is rotatably installed on the roller seat , The roller is in rolling contact with the other of the front wiper and the brush head body, the guide rail seat is fixed on one of the front wiper and the brush head body, and the guide rail is fixed on On the other of the front wiper and the brush head body, the rail seat is used to limit the moving direction of the rail bar.
The vacuum cleaner brush head according to claim 1 or 10, wherein at least one set of guide devices is provided between the rear wiper plate and the bottom of the brush head body;

The guide device includes a roller, a roller seat, a rail bar, and a guide rail seat. The roller seat is fixed on one of the rear wiper and the brush head body, and the roller is rotatably installed on the roller seat , The roller is in rolling contact with the other of the back wiper and the brush head body, the rail seat is fixed on one of the back wiper and the brush head body, and the rail bar is fixed on On the other of the rear wiper board and the brush head body, the rail seat is used to limit the moving direction of the rail bar.
The vacuum cleaner brush head of claim 13 or 14, wherein the guide rail seat includes a first seat body and a second seat body, and the gap between the first seat body and the second seat body The guide rail is penetrated.
The vacuum cleaner brush head according to claim 1, wherein the spray nozzle of the water spray assembly is provided with a nozzle, and the nozzle is detachably installed at the bottom of the brush head body.
The vacuum cleaner brush head according to claim 1, wherein the dust suction pipeline comprises an internal pipeline and a flexible joint, the internal pipeline is located in the brush head body and one end is connected to the suction port, The other end of the inner tube is inserted into the flexible joint, and the flexible joint is fixed on the brush head body.
The vacuum cleaner brush head of claim 17, wherein the flexible joint comprises a first sleeve, a second sleeve, and an outer tube, and the first end of the first sleeve is inserted into the brush head. Body, the second end of the first sleeve is hinged with the second sleeve, the outer tube is sleeved in the second sleeve, and the internal pipeline passes through the first sleeve The outer tube is inserted, and the outer tube and the second sleeve are locked by a key.
The vacuum cleaner brush head of claim 18, wherein a wire plug is fixed between the outer tube and the second sleeve, and the wire plug passes through the second sleeve and the first sleeve. casing.
The vacuum cleaner brush head according to claim 1, wherein the water spray assembly includes a water tank, the water tank includes a tank body, a tank cover, and a water barrier, and the tank cover is arranged on the top of the tank body, The lower part of the box body has a water outlet, the water-proof pad is arranged in the box body and divides the box body into an upper cavity and a lower cavity, the lower cavity is used for water storage, and the water-proof pad The height of the central area of the is smaller than the height of the edge area, and the central area of the water barrier has a water injection port for water injection into the lower cavity, and the tank cover is configured to open or close the water injection port.
A method for vacuuming, characterized in that the vacuum cleaner brush head according to any one of claims 1-19 is used to perform the following operations:

Start the negative pressure generating device so that garbage is sucked away by the dust suction pipe at the dust suction port;

Starting the wiper driving device is configured to drive the front wiper and the rear wiper to reciprocate in opposite directions;

The water spray assembly is activated according to a preset time interval and water volume, so that the front wiper board performs dry wipe on the surface to be cleaned, and the rear wiper board performs wet wipe on the surface to be cleaned.
The dust collection method according to claim 20, further comprising:

It is detected whether the brush head body is on the ground, and the water spray assembly is closed when the brush head body leaves the ground.
The dust collection method according to claim 20, further comprising:

Receive control instructions issued by the mobile terminal to control the operation of the brush head of the vacuum cleaner. The control instructions include the opening and closing instructions of the water spray assembly, the opening and closing instructions of the wiper drive device, the opening and closing instructions of the negative pressure generating device, the water spray time interval, and the air suction volume. One or more of.