Vacuum cleaner brush head and vacuuming method

Abstract

The present invention provides a vacuum cleaner brush head and a dust collection method. The vacuum cleaner brush head includes a brush head body, a front wiping plate, a rear wiping plate, a wiping plate driving device, and a water spray assembly. A dust collection pipeline is provided in the brush head body, and the dust collection pipeline forms a dust collection port on the bottom front side of the brush head body. The water spray port of the water spray assembly is provided at the bottom of the brush head body and is located between the front wiping plate and the rear wiping plate. The wiping plate driving device is connected to the front wiping plate and the rear wiping plate, and the wiping plate driving device is configured to drive the front wiping plate and the rear wiping plate to move back and forth in opposite directions. The front wiping plate is provided with a dust hole running through its upper and lower ends, and the dust hole is located below the dust collection port. The dust hole is configured so that the dust collection port remains overlapped with the dust hole when the front wiping plate reciprocates. In this way, the multi-functional cleaning functions of dust collection, dry wiping, and wet wiping are achieved. Compared with the prior art, it can take into account the thorough cleaning of various types of garbage, and significantly improve the operating area, operating efficiency, and cleaning effect of the vacuum cleaner brush head.

Description

Technical Field

[0001] The present invention relates to the field of vacuum cleaners, and in particular to a vacuum cleaner brush head and a dust collection method. Background Art

[0002] Vacuum cleaners, a cleaning device that uses negative pressure to generate suction to remove dirt, have become increasingly popular. Existing vacuum cleaners rely solely on suction to thoroughly remove dust from surfaces. To improve cleaning efficiency, existing vacuum cleaner brush heads with bristles have emerged. These bristles dislodge dust, allowing it to be sucked into the suction port. However, existing automatic brush heads often have cylindrical bristles, which can easily become entangled with hair, leading to a high failure rate. Furthermore, these brush heads have limited force and can only remove loose dust, but struggle to remove firmly adhered debris, resulting in poor cleaning efficiency. Furthermore, existing solutions require users to forcefully press the brush head against the floor, which is physically demanding and creates a poor user experience. Existing solutions also have limited cleaning coverage for accumulated dust, and the cylindrical bristles cannot handle larger pieces of debris or objects like hair stuck to the floor. This makes cleaning difficult and the user experience poor. Furthermore, the linkage between the cylindrical bristles and the suction port makes it difficult to effectively coordinate them, leaving significant room for improvement in vacuuming efficiency.

[0003] On the other hand, some existing brush heads are equipped with water sprayers. However, during use, this can easily wet hair and other debris on the floor, making them sticky and difficult to pick up and clean. Furthermore, moisture can easily be sucked into the vacuum system through the suction port, which can easily burn out the system's motor. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a vacuum cleaner brush head and a dust collection method. The specific technical solutions are as follows:

[0005] A vacuum cleaner brush head, comprising a brush head body, a front wiping plate, a rear wiping plate, a wiping plate driving device, and a water spray assembly, wherein a dust suction pipeline is provided in the brush head body, and a dust suction port is formed on the front side of the bottom of the brush head body; the front wiping plate and the rear wiping plate are respectively provided at the bottom of the brush head body; a rag is respectively provided on the front wiping plate and the rear wiping plate; the wiping plate driving device is provided in the brush head body; and a water spray port of the water spray assembly is provided at the bottom of the brush head body and between the front wiping plate and the rear wiping plate;

[0006] The wiper plate driving device is connected to the front wiper plate and the rear wiper plate in a transmission manner, and the wiper plate driving device is configured to drive the front wiper plate and the rear wiper plate to move back and forth in opposite directions;

[0007] The front wiping plate is provided with dust holes running through the upper and lower ends thereof, the dust holes are located below the dust suction port, and the dust holes are configured so that the dust suction port remains overlapped with the dust holes when the front wiping plate moves back and forth.

[0008] In a specific embodiment, in the forward or backward direction of the front wiping plate, the width of the dust passage hole is greater than the width of the dust suction port by a preset threshold value, so that the dust suction port remains overlapping with the dust passage hole when the dust passage hole reciprocates with the front wiping plate;

[0009] Alternatively, in the forward or backward direction of the front wiping plate, the width of the dust hole is smaller than the width of the dust suction port to a preset threshold, so that the dust suction port keeps overlapping with the dust hole when the dust hole moves back and forth with the front wiping plate.

[0010] In a specific embodiment, the top transmission of the front wiper is connected to the wiper driving device, the bottom of the front wiper has a dust collecting trough and a rag mounting portion, the front wall of the dust collecting trough is located at the front edge of the bottom of the front wiper, the rear wall of the dust collecting trough is connected to the rag mounting portion, and the dust hole is arranged in the dust collecting trough.

[0011] In a specific embodiment, the front wall of the dust collecting trough is provided with a plurality of gaps arranged at intervals, and each of the gaps is connected to the dust collecting trough respectively.

[0012] In a specific embodiment, the dust collecting groove extends from the middle to both sides of the bottom front edge of the front wiping plate, and occupies more than half of the length of the bottom front edge of the front wiping plate.

[0013] In a specific embodiment, the number of the dust suction ports is one or more, and the number of the dust holes is one or more. When the number of the dust suction ports is multiple, the dust holes correspond to the dust suction ports one-to-one or one dust hole overlaps multiple dust suction ports.

[0014] In a specific embodiment, the rear wall of the dust collecting trough has a plurality of toothed knives, and the blades of the toothed knives face the dust collecting trough.

[0015] In a specific embodiment, the front wall of the dust collecting trough also has a plurality of toothed cutters, and the blades of the toothed cutters face the dust collecting trough.

[0016] In a specific embodiment, the width of the dust collecting trough in the area where the dust hole is not provided is smaller than the width of the dust hole.

[0017] In a specific embodiment, the wiper plate driving device includes a crankshaft, a first connecting rod and a second connecting rod, the crankshaft includes a crankshaft rod, a first journal and a second journal formed on the crankshaft rod, one end of the first connecting rod is rotatably mounted on the first journal, and the other end is hinged to the top of the front wiper plate, one end of the second connecting rod is rotatably mounted on the second journal, and the other end is hinged to the top of the rear wiper plate.

[0018] In a specific embodiment, the axis line of the first journal, the axis line of the second journal and the rotation axis of the crankshaft are coplanar, and the distance between the axis line of the first journal and the rotation axis of the crankshaft is equal to the distance between the axis line of the second journal and the rotation axis of the crankshaft.

[0019] In a specific embodiment, the wiper plate driving device is further configured to drive the front wiper plate and the rear wiper plate to move back and forth in opposite directions, so that the crankshaft remains self-balanced.

[0020] In a specific embodiment, at least one set of guide devices is provided between the front wiping plate and the bottom of the brush head body;

[0021] The guide device includes a roller, a roller seat, a guide bar, and a guide rail seat. The roller seat is fixed on one of the front wiping plate and the brush head body. The roller is rotatably mounted on the roller seat. The roller rolls in contact with the other of the front wiping plate and the brush head body. The guide rail seat is fixed on one of the front wiping plate and the brush head body. The guide bar is fixed on the other of the front wiping plate and the brush head body. The guide rail seat is used to limit the moving direction of the guide bar.

[0022] In a specific embodiment, at least one set of guide devices is provided between the rear wiping plate and the bottom of the brush head body;

[0023] The guide device includes a roller, a roller seat, a guide bar, and a guide rail seat. The roller seat is fixed on one of the rear wiping plate and the brush head body. The roller is rotatably mounted on the roller seat. The roller rolls in contact with the other of the rear wiping plate and the brush head body. The guide rail seat is fixed on one of the rear wiping plate and the brush head body. The guide bar is fixed on the other of the rear wiping plate and the brush head body. The guide rail seat is used to limit the moving direction of the guide bar.

[0024] In a specific embodiment, the guide rail seat includes a first seat body and a second seat body, and the guide rail bar is passed through a gap between the first seat body and the second seat body.

[0025] In a specific embodiment, the water spray port of the water spray assembly is provided with a nozzle, and the nozzle is detachably mounted on the bottom of the brush head body.

[0026] 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 one end is connected to the dust suction port. The other end of the internal pipeline is inserted into the flexible joint, and the flexible joint is fixed on the brush head body.

[0027] 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, the second end of the first sleeve is hinged to the second sleeve, the outer tube is sleeved in the second sleeve, the internal pipeline passes through the first sleeve and is connected to the outer tube, and the outer tube and the second sleeve are locked by a key.

[0028] 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.

[0029] In a specific embodiment, the water spray assembly includes a water tank, which includes a tank body, a tank cover and a water-isolating pad. The tank cover is arranged on the top of the tank body, and the lower part of the tank body has a water outlet. The water-isolating pad is arranged in the tank body and divides the tank body into an upper chamber and a lower chamber. The lower chamber is used to store water. The height of the central area of ​​the water-isolating pad is smaller than the height of the edge area, and the central area of ​​the water-isolating pad has a water inlet for injecting water into the lower chamber. The tank cover is configured to open or close the water inlet.

[0030] A dust collection method, comprising: using the brush head of a vacuum cleaner as described above to perform the following operations:

[0031] Activate the negative pressure generating device so that the garbage is sucked away by the suction pipe at the suction port;

[0032] Activating the wiper driving device configured to drive the front wiper and the rear wiper to move back and forth in opposite directions;

[0033] The water spray assembly is activated according to a preset time interval and water volume, so that the front wiping plate performs dry wiping on the surface to be cleaned and the rear wiping plate performs wet wiping on the surface to be cleaned.

[0034] In a specific embodiment, it also includes:

[0035] Detect whether the brush head body is located on the ground, and when the brush head body leaves the ground, turn off the water spray assembly.

[0036] In a specific embodiment, it also includes:

[0037] Receive control instructions sent by the mobile terminal to control the operation of the vacuum cleaner brush head, and the control instructions include one or more of the water spray component start and close instructions, the wiper drive device start and close instructions, the negative pressure generating device start and close instructions, the water spray time interval, and the suction volume.

[0038] The present invention has at least the following beneficial effects:

[0039] According to the vacuum cleaner brush head and vacuuming method provided by the present invention, during the cleaning process, the front and rear wiping plates move back and forth in opposite directions. Compared with the cylindrical bristles in traditional vacuum cleaners, the wiping plates can have a larger cleaning area due to the back and forth movement of the wiping plates, and can even extend from the left edge of the bottom of the brush head body to the right edge. Due to the larger cleaning area, the vacuum cleaning efficiency can be significantly improved. Moreover, since the front and rear wiping plates move back and forth in opposite directions, the reciprocating wiping cleaning effect is significantly improved compared to the one-way rotation wiping performed by the cylindrical bristles in traditional vacuum cleaners. Moreover, since the floor is no longer wiped by rolling wiping, the problem of hair entanglement existing in the cylindrical bristles of the prior art is overcome. Moreover, compared with cylindrical bristles, the rag in this solution can have a greater force on the floor itself, which facilitates the cleaning of garbage firmly adhered to the floor.

[0040] On the other hand, since the front wiping plate is provided with dust holes extending through its upper and lower ends, the dust suction port remains overlapped with the dust holes. Therefore, when the negative pressure generating device is activated and garbage enters the dust collection trough of the front wiping plate, most of the garbage can be sucked away through the dust suction port before it comes into contact with the rag on the front wiping plate. The remaining dust on the ground that has not been sucked away is then disposed of by the rags on the subsequent front and rear wiping plates. Furthermore, the rag on the front wiping plate can push larger and heavier garbage forward to the area where the dust suction port is located, and then be sucked in through the dust suction port. That is, in the present invention, the garbage is directionally pushed to the dust suction port by the front wiping plate, and the two achieve an efficient linked dust collection and cleaning effect. Compared with the existing technology of the roller brush and dust suction port, the cylindrical bristles and dust suction port, which each work independently or have poor linkage, the present invention represents a significant technological advancement. The significantly improved dust collection and cleaning effect brought about by this linkage is difficult to predict with the existing technology.

[0041] Furthermore, when the vacuuming operation is performed in the vacuuming pipeline, the air in the dust collecting tank is drawn in to form a negative pressure space. Under the action of the air pressure difference, the rag on the wiping plate is in close contact with the ground. On the one hand, the vacuum cleaner brush head can also be in close contact with the ground without the user pressing hard. On the other hand, the friction between the rag and the ground is significantly enhanced, which can remove the garbage firmly adhered to the ground. This is something that cannot be achieved with the existing technology, and thus it is a significant improvement.

[0042] Furthermore, the dust holes provided on the front wiping plate that pass through the upper and lower ends thereof can significantly reduce the space occupied by the dust suction port on the bottom of the brush head body, thereby increasing the area occupied by the rag on the wiping plate at the bottom of the brush head body.

[0043] Furthermore, because the water spray assembly's water outlet is located at the bottom of the brush head body, between the front and rear wipers, during the brush head's travel, the front wiper contacts the dry surface, while the rear wiper contacts the wet surface. This allows the front wiper to dry-wipe the surface to be cleaned, removing dust and other debris, while the rear wiper wet-wipes the surface to be cleaned. Compared to the existing techniques of simple dry or wet wiping, this system can handle multiple types of debris, achieving a better overall cleaning effect. This achieves a multi-functional cleaning function combining dust collection, dry wiping, and wet wiping, significantly enhancing both dust collection and cleaning performance.

[0044] Furthermore, since the water nozzle is arranged between the front wiping plate and the rear wiping plate, the dust suction port and the water nozzle are separated by the rag on the front wiping plate, eliminating the possibility of the cleaning liquid sprayed from the water nozzle entering the dust suction port, and preventing the motor of the dust suction system from being damaged by water. That is, the ingenious structure achieves both improved cleaning effect and improved safety at the same time.

[0045] In summary, the present invention can significantly improve the cleaning area and cleaning effect of a vacuum cleaner brush head, and has outstanding substantive features and significant improvements compared to existing technologies. It should be noted that although the technical effects of the aforementioned technical features are described in sections, the various parts are not isolated, but rather form a coordinated and integrated technical solution.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 is a top perspective view of the vacuum cleaner brush head in Example 1;

[0049] Figure 2 is a bottom perspective view of the vacuum cleaner brush head in Example 1;

[0050] Figure 3 is a bottom perspective view of the front wiper in Example 1;

[0051] Figure 4 A top perspective view of the front wiper in Example 1;

[0052] Figure 5 is a bottom perspective view of the vacuum cleaner brush head in Example 1 after removing the front wiper plate;

[0053] Figure 6 is a schematic diagram of a portion of the internal structure of the vacuum cleaner brush head in Example 1;

[0054] Figure 7 yes Figure 6 Schematic diagram after removing the dust collection pipeline;

[0055] Figure 8 is a schematic diagram of the crankshaft in Example 1;

[0056] Figure 9 is a cross-sectional view of the vacuum cleaner brush head in Example 1;

[0057] Figure 10 is a three-dimensional diagram of the box in Example 1;

[0058] Figure 11 is a perspective view of the water-isolating pad in Example 1;

[0059] Figure 12 is an exploded view of the box cover in Example 1;

[0060] Figure 13 is a cross-sectional view of the vacuum cleaner brush head in Example 1;

[0061] Figure 14 is a schematic diagram of the flexible joint in Example 1;

[0062] Figure 15 is an exploded view of the flexible joint in Example 1;

[0063] Figure 16 is a bottom perspective view of a front wiper in Example 2;

[0064] Figure 17 It is a bottom perspective view of another front wiper in Example 2.

[0065] Description of main component symbols:

[0066] 1-vacuum cleaner brush head; 2, 126-brush head body; 3-second sleeve; 4-front wiper; 41-front wall of the dust collecting trough; 42-dust collecting trough; 43-rag mounting part; 44-dust hole; 45-gap; 46-rear wall of the dust collecting trough; 47-connecting seat; 5-rear wiper; 6-dust suction port; 7-nozzle; 8, 24-roller seat; 9, 22-guide rail; 10, 23-roller; 11-guide rail seat; 12-water tank; 13-internal pipeline; 14-first sleeve; 15-sleeve positioning seat; 16-drive motor; 17-pumping device; 18-first connecting rod; 19-second connecting rod; 20-crankshaft; 201-crankshaft rod; 202-first shaft neck; 203-second shaft neck; 25-outer tube; 26-key; 27-electrical plug. DETAILED DESCRIPTION

[0067] Example 1

[0068] This embodiment provides a vacuum cleaner brush head 1, which can be used as a vacuum cleaner brush head.

[0069] like Figure 1-Figure 3 As shown, the vacuum cleaner brush head 1 includes a brush head body 2, a front wiper plate 4, a rear wiper plate 5, a wiper plate drive device, and a water spray assembly. A dust suction line is provided within the brush head body 2, with a dust suction port 6 formed on the bottom front side of the brush head body 2. The front wiper plate 4 and the rear wiper plate 5 are respectively disposed at the bottom of the brush head body 2, each with a rag attached. The wiper plate drive device is disposed within the brush head body 2, and the water spray assembly's water spray port is disposed at the bottom of the brush head body 2, between the front wiper plate 4 and the rear wiper plate 5. The wiper plate drive device is transmission-connected to the front wiper plate 4 and the rear wiper plate 5, and is configured to drive the front wiper plate 4 and the rear wiper plate 5 to reciprocate in opposite directions.

[0070] The front wiping plate 4 is provided with dust holes 44 running through the upper and lower ends thereof. The dust holes 44 are configured to have a preset size so that the dust suction port 6 is always overlapped by the dust holes 44 when the front wiping plate 4 moves back and forth. Figure 2 As shown, in the forward or backward direction of the front wiper 4, the width of the dust hole 44 is greater than the width of the dust suction port 6 by a predetermined threshold, so that the dust hole 44 remains overlapping with the dust suction port 6 when the front wiper 4 reciprocates. The specific value of the predetermined threshold can be selected by those skilled in the art based on the size of either the dust suction port 6 or the dust hole 44, and is a variable number, as long as the dust hole 44 remains overlapping with the dust suction port 6 when the dust hole 44 reciprocates with the front wiper 4. A detailed description is omitted in this example. It should be noted that in another embodiment, the width of the dust hole 44 can be less than the width of the dust suction port by a predetermined threshold, so that the dust suction port remains overlapping with the dust hole when the dust hole 44 reciprocates with the front wiper 4.

[0071] Specifically, the brush head body 2 forms a housing structure for mounting the front and rear wiper blades 4 and 5, a wiper blade drive mechanism, a water spray assembly, a dust collection pipeline, and other accessories. In this embodiment, the dust collection pipeline is connected to the negative pressure generating device in the vacuum cleaner system via a connector and an outer tube 25. When the negative pressure generating device is activated, it generates negative pressure at the suction port 6 to suck in dust and other debris.

[0072] Preferably, the front wiping plate 4 and the rear wiping plate 5 are each elongated, extending from the left edge of the bottom of the brush head body 2 to the left edge. Thus, compared to cylindrical wiping plates in the prior art, the front wiping plate 4 and the rear wiping plate 5 significantly increase the effective cleaning area of ​​the vacuum cleaner brush head 1. Preferably, the rags on the front wiping plate 4 and the rear wiping plate 5 are detachably mounted, for example, by being attached to the front side plate and the rear wiping plate 5, respectively, via a nylon-like fastener.

[0073] Figure 6-Figure 9 A preferred wiper blade drive device is shown, comprising a crankshaft 20, a first connecting rod 18, and a second connecting rod 19. The crankshaft 20 comprises 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 mounted on the first journal 202, and the other end is hingedly connected to the top of the front wiper blade 4. One end of the second connecting rod 19 is rotatably mounted on the second journal 203, and the other end is hingedly connected to the top of the rear wiper blade 5. In other words, the crankshaft 20, the first connecting rod 18, and the front wiper blade 4 form a crank-connecting rod mechanism, while the crankshaft 20, the second connecting rod 19, and the rear wiper blade 5 form another crank-connecting rod mechanism. To enable the crankshaft 20 to rotate, the wiper blade drive device further comprises a drive motor 16 and a transmission mechanism disposed within the brush head body 2. The drive motor 16 drives the crankshaft 20 via a rotation mechanism, wherein the transmission mechanism may include a synchronous belt, an eddy current worm gearbox, or other structural types.

[0074] Preferably, the axis of the first journal 202 and the axis of the second journal 203 are coplanar with the rotation axis of the crankshaft 201, and the distance between the axis of the first journal 202 and the rotation axis of the crankshaft 201 is equal to the distance between the axis of the second journal 203 and the rotation axis of the crankshaft 201. Thus, when the crankshaft 20 rotates in one direction, it drives the front wiper plate 4 and the rear wiper plate 5 to reciprocate in opposite directions.

[0075] Preferably, the blade drive device is further configured to maintain self-balancing of the crankshaft 20 when driving the front and rear blades 4, 5 to reciprocate in opposite directions. Specifically, by presetting the dimensions, weight, and shape of the first journal 202, second journal 203, first connecting rod 18, second connecting rod 19, and front and rear blades 4, 5, the crankshaft 20 maintains self-balancing during rotation. This ensures that the entire vacuum cleaner brush head 1 remains stable when the front and rear blades 4, 5 reciprocate in opposite directions, avoiding unnecessary vibration, significantly reducing noise, and minimizing wear on the blade drive device.

[0076] In this embodiment, the number of the water spraying ports is one or more, preferably multiple. Figure 2 The figure shows a case where there are two water spray outlets, both of which are located at the bottom of the brush head body 2 and between the front wiping plate 4 and the rear wiping plate 5. Specifically, the water spray assembly also includes a water tank 12, a pumping device 17, and a water supply pipeline disposed inside the brush head body 2. The water tank 12 is connected to the water spray outlets via the water supply pipeline. A water pump is disposed in the water supply pipeline to pressurize the cleaning liquid in the water tank 12 and spray it out of the water spray outlets.

[0077] Among them, Figures 9-12 As shown, the water tank 12 includes a tank body 121, a tank cover 122, and a water barrier 123. The tank cover 122 is disposed on the top of the tank body 121, and the lower portion of the tank body 121 has a water outlet. The water barrier 123 is disposed within the tank body 121 and divides the tank body 121 into an upper chamber 124 and a lower chamber 125. The lower chamber 125 is used to store water. The central area of ​​the water barrier 123 is lower than the height of the edge area, and the central area of ​​the water barrier 123 has a water inlet 131 for injecting water into the lower chamber 125. The tank cover 122 is configured to open or close the water inlet 131.

[0078] Preferably, the height of the water-isolating pad 123 decreases continuously and smoothly from the edge area to the center area.

[0079] Preferably, the bottom of the box body 121 is recessed inward to form a receiving groove 130 .

[0080] Preferably, the water-isolating pad 123 is an elastic body, such as an elastic silicone water-isolating pad 123 .

[0081] The bottom of the brush head body 126 is provided with a nozzle, which is connected to the water outlet through a water supply pipe. The water pump is configured to pump the cleaning liquid in the lower chamber 125 to the nozzle for spraying. Specifically, the water pump is connected to the water supply pipe. When the water pump is started, it generates pressure to pump the cleaning liquid in the water tank 12.

[0082] In this embodiment, the edge area of ​​the water-isolating pad 123 has an annular protrusion 127 that protrudes downward and extends around the central area. The top of the box body 121 has a first annular groove 132, and the annular protrusion 127 is installed in the first annular groove 132. The upper surface of the annular protrusion 127 is recessed inward to form a second annular groove 133. The upper surface of the brush head body 126 has an opening, and the box cover 122 is openably installed in the opening. The inner surface of the brush head body 126 at the opening has a cylindrical protrusion 128 protruding downward. 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 form a closed space.

[0083] Preferably, the box cover 122 includes a cover plate 1221 and a cylinder 1222 which are connected as one body. The cover plate 1221 exposes the upper surface of the brush head body 126, and the cylinder 1222 is inserted into the opening. An elastic sealing ring 129 is sleeved on the cylinder 1222, and the elastic sealing ring 129 abuts against the inner wall of the opening.

[0084] In this embodiment, the cleaning device also includes a wiper plate, a wiper plate driving device and a dust suction pipe. The dust suction pipe is arranged in the brush head body 126. The dust suction pipe is formed with a dust suction port at the bottom of the brush head body 126. The wiper plate is arranged at the bottom of the brush head body 126. A rag is arranged at the bottom of the wiper plate. The wiper plate driving device is arranged in the brush head body 126 to drive the wiper plate to move.

[0085] Thus, on the one hand, the water barrier 123 can be used to separate the cleaning liquid stored in the lower chamber 125 from the upper chamber 124, preventing possible leakage caused by the cleaning liquid shaking and impacting the box cover 122 during high-speed vibration or movement of the cleaning device. Even if a small amount of cleaning liquid overflows above the water barrier 123 during shaking, due to the certain distance between the water barrier 123 and the box cover 122, very little cleaning liquid can contact the box cover 122. Moreover, because 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 liquid overflows above the water barrier 123 during shaking, it can be promptly collected at the water inlet 131 under the action of its own gravity and fall into the lower chamber 125. Moreover, during the water filling process, it is not necessary to fully align the water inlet 131; the cleaning liquid can automatically collect at the water inlet 131 and fall into the lower chamber 125, improving water filling efficiency and preventing the cleaning liquid from spilling during the water filling process.

[0086] At the same time, since the water isolation 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 replenished with air in time during the process of discharging water to eliminate the air pressure difference inside and outside the water tank, making it easier for the water spray system to smoothly output the cleaning liquid in the water tank.

[0087] According to the vacuum cleaner brush head 1 provided in this embodiment, during the cleaning process, the front and rear wiping plates 4 and 5 reciprocate in opposite directions. Compared to the unidirectional wiping performed by the cylindrical bristles in conventional vacuum cleaners, the reciprocating wiping significantly improves the cleaning effect. Furthermore, since the floor is no longer wiped by rolling, the hair entanglement problem that cylindrical bristles in the prior art have been overcome. Furthermore, compared to cylindrical bristles, this embodiment allows for greater force between the rag and the floor, making it easier to clean debris firmly adhered to the floor.

[0088] On the other hand, the front wiping plate 4 is provided with dust holes 44 extending through its upper and lower ends. The dust holes 44 are configured to have a predetermined size so that the dust suction port 6 is always overlapped by the dust holes 44 when the front wiping plate 4 reciprocates. Therefore, when the negative pressure generating device is activated and garbage enters the dust holes 44 of the front wiping plate 4, most of the garbage is sucked away through the dust suction port 6 before it comes into contact with the rag on the front wiping plate 4. The remaining dust on the ground that has not been sucked away is then disposed of by the rags on the front wiping plate 4 and the rear wiping plate 5. In addition, the rag on the front wiper can push garbage that is larger in size and weight forward to the area where the dust suction port 6 is located. The rag on the front wiper 4 can push dust, hair and other garbage forward to the area where the dust suction port 6 is located, and then suck them from the dust suction port 6. That is, in this embodiment, the garbage is directionally pushed to the dust suction port 6 through the front wiper 4, and the two realize efficient linked dust suction and cleaning effects. Compared with the existing technology, the combinations of roller brush and dust suction port 6, cylindrical bristles and dust suction port 6, which work independently or have poor linkage and are difficult to transport ground garbage to the dust suction port 6, this embodiment has significant technical progress, and the significantly improved dust suction and cleaning effect brought about by this linkage is difficult to predict with the existing technology.

[0089] Furthermore, when the vacuuming operation is performed in the vacuuming pipeline, the air in the dust collecting tank 42 is drawn in to form a negative pressure space. Under the action of the air pressure difference, the rag on the wiping plate is in close contact with the ground. On the one hand, the vacuum cleaner brush head can also be in close contact with the ground without the user pressing hard. On the other hand, the friction between the rag and the ground is significantly enhanced, which can remove the garbage firmly adhered to the ground. This is something that cannot be achieved with the existing technology, and thus it is a significant improvement.

[0090] Furthermore, the front wiping plate 4 is provided with dust holes 44 running through the upper and lower ends thereof, which can significantly reduce the space occupied by the dust suction port 6 on the bottom of the brush head body 2.

[0091] In summary, this embodiment can significantly improve the cleaning area and cleaning effect of the vacuum cleaner brush head 1, and has outstanding substantive features and significant improvements compared to existing ones. It should be noted that although the technical effects of the aforementioned technical features are described in sections, the various parts are not isolated, but rather form an overall technical solution that coordinates, cooperates, and interacts.

[0092] This embodiment also provides a dust collection method, using the vacuum cleaner brush head 1 of this embodiment to perform the following operations:

[0093] Start the negative pressure generating device to suck the garbage away through the dust suction pipe at the dust suction port 6;

[0094] The wiper drive device is configured to drive the front wiper 4 and the rear wiper 5 to move back and forth in opposite directions;

[0095] The water spray assembly is started according to a preset time interval and water volume, so that the front wiping plate 4 performs dry wiping on the surface to be cleaned, and the rear wiping plate 5 performs wet wiping on the surface to be cleaned.

[0096] As the vacuum cleaner brush head 1 moves, the front wiping blade 4 contacts the dry floor surface, while the rear wiping blade 5 contacts the wet floor surface, causing the front wiping blade 4 to dry-wipe the surface being cleaned and the rear wiping blade 5 to wet-wipe the surface being cleaned. Furthermore, because the front wiping blade 4 is dry-wiping, it rubs and pushes dust and other debris in a relatively dry state, making it easier to push larger debris into the suction port 6. Small, dry dust particles are lifted from the floor and then sucked into the suction port 6. Conventional dry wiping alone fails to effectively clean the floor, resulting in a significantly inferior cleaning effect to that of this embodiment. Conventional wet wiping alone has poor dust collection capabilities, leaving dust and other debris on the floor after the water evaporates. Conventional wet wiping, due to the front placement of the water spray port, can easily wet hair on the floor surface, making it difficult to pick up and remove, resulting in a significantly inferior cleaning effect to that of this embodiment. Therefore, the solution of this embodiment achieves a multi-functional cleaning function combining dust collection, dry wiping, and wet wiping, enabling it to handle a variety of waste types and significantly improving both dust collection and cleaning performance.

[0097] like Figure 4-Figure 8 、 Figure 13 As shown, the top of the front wiper plate 4 is connected to the wiper plate drive device. Preferably, a connecting seat 47 is provided on the top of the front wiper plate 4. A hinge shaft is provided on the connecting seat 47, and the first connecting rod 18 is rotatably provided on the hinge shaft. Correspondingly, the top of the rear wiper plate 5 is connected to the wiper plate drive device. Preferably, a connecting seat 47 is provided on the top of the rear wiper plate 5. A hinge shaft is provided on the connecting seat 47, and the second connecting rod 19 is rotatably provided on the hinge shaft.

[0098] like Figure 2-Figure 5As shown, the bottom of the front wiping plate 4 has a dust collection trough 42 and a rag mounting portion 43. The front wall 41 of the dust collection trough is located at the front edge of the bottom of the front wiping plate 4. The rear wall 46 of the dust collection trough is connected to the rag mounting portion 43. A dust passage 44 is provided within the dust collection trough 42. Because the front wiping plate 4 is composed of the dust collection trough 42, the rag on the rag mounting portion 43 at the rear side of the dust collection trough 42 first pushes the garbage into the integrated trough, then collects in the dust passage 44 within the dust collection trough 42 and is 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, thereby increasing the dust suction area of ​​the vacuum cleaner brush head 1 and improving cleaning efficiency.

[0099] like Figure 2-Figure 4 As shown, the front wall 41 of the dust collection trough has a plurality of spaced-apart notches 45, each of which is connected to the dust collection trough 42. In this embodiment, because the notches 45 on the front wall 41 of the dust collection trough cooperate with the dust collection trough 42, when the vacuum cleaner brush head 1 is moving or the dust collection pipeline is operating, larger debris can enter the dust collection trough 42 through the notches 45, then be collected in the dust collection trough 42 at the dust hole 44, and then be sucked away by the dust suction port 6. This significantly improves the dust collection and cleaning effect of large debris.

[0100] Preferably, the dust collecting groove 42 extends from the middle to both sides of the bottom front edge of the front wiping plate 4 and occupies more than half the length of the bottom front edge of the front wiping plate 4. Thus, the dust collection and cleaning area of ​​the vacuum cleaner brush head 1 can be further increased.

[0101] In this embodiment, there are one or more dust suction ports 6 and one or more dust passage holes 44. When there are multiple dust suction ports 6, the dust passage holes 44 correspond to each other one by one, or one dust passage hole 44 overlaps with multiple dust suction ports 6, that is, one dust passage hole 44 overlaps with one dust suction port 6, or one dust passage hole 44 overlaps with multiple dust suction ports 6.

[0102] Preferably, the width of the dust collecting trough 42 in the area not provided with the dust hole 44 is smaller than the width of the dust hole 44. Thus, the area of ​​the rag mounting portion 43 can be made larger, thereby increasing the cleaning area.

[0103] Preferably, at least one guide device is provided between the front wiping plate 4 and the bottom of the brush head body 2. Further preferably, the guide device includes a roller 10, a roller seat 8, a guide bar 9, and a guide seat 11. The roller seat 8 is fixed to one of the front wiping plate 4 and the brush head body 2. The roller 10 is rotatably mounted on the roller seat 8. The roller 10 rolls in contact with the other of the front wiping plate 4 and the brush head body 2. The guide seat 11 is fixed to one of the front wiping plate 4 and the brush head body 2. The guide bar is fixed to the other of the front wiping plate 4 and the brush head body 2. The guide seat 11 is used to limit the movement direction of the guide bar 9.

[0104] Preferably, at least one set of guide devices is provided between the rear wiping plate 5 and the bottom of the brush head body 2. Further preferably, the guide device includes a roller 23, a roller seat 24, a guide bar 22, and a guide seat (not shown in the figure), wherein the roller seat is fixed to one of the rear wiping plate 5 and the brush head body 2, the roller is rotatably mounted on the roller seat, and the roller rolls in contact with the other of the rear wiping plate 5 and the brush head body 2, the guide seat is fixed to one of the rear wiping plate 5 and the brush head body 2, the guide bar is fixed to the other of the rear wiping plate 5 and the brush head body 2, and the guide seat is used to limit the movement direction of the guide bar.

[0105] Preferably, the guide rail seat comprises a first seat body and a second seat body, and a guide rail bar is passed through the gap between the first seat body and the second seat body.

[0106] Preferably, the water spray port of the water spray assembly is provided with a nozzle 7 , and the nozzle 7 is detachably mounted on the bottom of the brush head body 2 .

[0107] In this embodiment, the dust collection pipeline includes an internal pipeline 13 and a flexible joint. The internal pipeline 13 is located in the brush head body 2 and one end is connected to the dust collection port 6. The other end of the internal pipeline is inserted into the flexible joint, and the flexible joint is fixed on the brush head body 2.

[0108] Figure 6 、 Figure 13-14 A preferred flexible joint is shown, comprising 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 hingedly connected to the second sleeve 3, the outer tube 25 is sleeved within the second sleeve 3, the internal pipe 13 passes through the first sleeve 14 and is plugged into the outer tube 25, and the outer tube 25 and the second sleeve 3 are locked by a key 26. This achieves a flexible connection of the outer tube 25 of the dust collection pipeline in the vacuum cleaner brush head 1, and facilitates quick disassembly and assembly.

[0109] Preferably, an electric wire plug 27 is fixed between the outer tube 25 and the second sleeve 3 , and the electric wire plug 27 passes through the second sleeve 3 and the first sleeve 14 .

[0110] In this embodiment, the brush head body 2 is preferably further provided with a position sensor for detecting whether the brush head body 2 is off the ground. The dust collection method further includes:

[0111] Detect whether the brush head body 2 is on the ground, and when the brush head body 2 leaves the ground, turn off the water spray assembly.

[0112] In this embodiment, the dust collection method further includes:

[0113] The control command received from the mobile terminal controls the operation of the vacuum cleaner brush head 1. The control command includes one or more of the following: water spray assembly start / stop command, wiper drive device start / stop command, negative pressure generating device start / stop command, water spray time interval, and suction volume. Thus, wireless intelligent control of the vacuum cleaner brush head 1 can be achieved through a mobile phone or other device.

[0114] Example 2

[0115] This embodiment provides a vacuum cleaner brush head 1, which can be used as a vacuum cleaner brush head. Compared with embodiment 1, the main differences of this embodiment are:

[0116] like Figure 16 As shown, the rear wall 46 of the dust collecting groove has a plurality of tooth knives, and the blades of the tooth knives face the dust collecting groove 42. Among them, the tooth knives include various shapes such as triangular teeth, trapezoidal teeth, and comb teeth.

[0117] Therefore, when encountering garbage such as hair, the toothed blade can first scoop up the garbage and suck it away through the suction port 6, which can improve the effect of sucking hair and eliminate or reduce the situation where the hair is rolled under the rag before it has time to be sucked into the suction port 6, further improving the cleaning effect.

[0118] Preferably, if Figure 17 As shown, the transition portion between the rag mounting portion 43 and the rear wall 46 of the dust collecting chute protrudes toward the working surface relative to the rag mounting portion 43, and the toothed blade is formed on the protruding transition portion.

[0119] The other features in this embodiment are the same as those in embodiment 1 and will not be described in detail.

[0120] The above disclosures are only several specific implementation scenarios of the present invention. However, the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A vacuum cleaner brush head, characterized in that: The utility model comprises a brush head body, a front wiping plate, a rear wiping plate, a wiping plate driving device and a water spraying assembly, wherein a dust suction pipeline is provided in the brush head body, and a dust suction port is formed on the front side of the bottom of the brush head body; the front wiping plate and the rear wiping plate are respectively provided at the bottom of the brush head body, and rags are respectively provided on the front wiping plate and the rear wiping plate; the wiping plate driving device is provided in the brush head body, and the water spraying port of the water spraying assembly is provided at the bottom of the brush head body and between the front wiping plate and the rear wiping plate; The wiper plate driving device is connected to the front wiper plate and the rear wiper plate in a transmission manner, and the wiper plate driving device is configured to drive the front wiper plate and the rear wiper plate to move back and forth in opposite directions; The front wiping plate is provided with dust holes running through its upper and lower ends, the dust holes are located below the dust suction port, and the dust holes are configured so that the dust suction port remains overlapping with the dust holes when the front wiping plate moves back and forth; the bottom of the front wiping plate is provided with a dust collecting groove.

2. The vacuum cleaner brush head according to claim 1, characterized in that: In the forward or backward direction of the front wiping plate, the width of the dust hole is greater than the width of the dust suction port to a preset threshold value, so that the dust suction port keeps overlapping with the dust hole when the dust hole moves back and forth with the front wiping plate; Alternatively, in the forward or backward direction of the front wiping plate, the width of the dust hole is smaller than the width of the dust suction port to a preset threshold, so that the dust suction port keeps overlapping with the dust hole when the dust hole moves back and forth with the front wiping plate.

3. The vacuum cleaner brush head according to claim 1 or 2, characterized in that: The top of the front wiping plate is connected to the wiping plate driving device through a transmission mechanism, and the bottom of the front wiping plate also has a rag mounting portion. The front wall of the dust collecting trough is located at the bottom front edge of the front wiping plate, the rear wall of the dust collecting trough is connected to the rag mounting portion, and the dust hole is arranged in the dust collecting trough.

4. The vacuum cleaner brush head according to claim 3, characterized in that: The front wall of the dust collecting trough is provided with a plurality of gaps arranged at intervals, and each of the gaps is connected to the dust collecting trough respectively.

5. The vacuum cleaner brush head according to claim 4, characterized in that: The dust collecting groove extends from the middle to both sides of the bottom front edge of the front wiping plate, and occupies more than half of the length of the bottom front edge of the front wiping plate.

6. The vacuum cleaner brush head according to claim 3, characterized in that: The number of the dust suction ports is one or more, and the number of the dust holes is one or more. When the number of the dust suction ports is multiple, the dust holes correspond to the dust suction ports one-to-one or one dust hole overlaps multiple dust suction ports.

7. The vacuum cleaner brush head according to claim 3, characterized in that: The rear wall of the dust collecting trough is provided with a plurality of toothed knives, and the blades of the toothed knives face toward the dust collecting trough.

8. The vacuum cleaner brush head according to claim 7, characterized in that: The front wall of the dust collecting trough is also provided with a plurality of toothed knives, and the blades of the toothed knives face toward the dust collecting trough.

9. The vacuum cleaner brush head according to claim 3, characterized in that: The width of the dust collecting trough in an area where the dust passing hole is not provided is smaller than the width of the dust passing hole.

10. The vacuum cleaner brush head according to claim 1, characterized in that: The wiper plate driving device includes a crankshaft, a first connecting rod and a second connecting rod. The crankshaft includes a crankshaft rod, a first journal and a second journal formed on the crankshaft rod. One end of the first connecting rod is rotatably mounted on the first journal, and the other end is hinged to the top of the front wiper plate. One end of the second connecting rod is rotatably mounted on the second journal, and the other end is hinged to the top of the rear wiper plate.

11. The vacuum cleaner brush head according to claim 10, characterized in that: The axis line of the first journal, the axis line of the second journal and the rotation axis of the crankshaft are coplanar, and the distance between the axis line of the first journal and the rotation axis of the crankshaft is equal to the distance between the axis line of the second journal and the rotation axis of the crankshaft.

12. The vacuum cleaner brush head according to claim 1 or 10, characterized in that: The wiper plate driving device is further configured to drive the front wiper plate and the rear wiper plate to move back and forth in opposite directions, so that the crankshaft remains self-balanced.

13. The vacuum cleaner brush head according to claim 1 or 10, characterized in that: At least one set of guide devices is provided between the front wiping plate and the bottom of the brush head body; The guide device includes a roller, a roller seat, a guide bar, and a guide rail seat. The roller seat is fixed on one of the front wiping plate and the brush head body. The roller is rotatably mounted on the roller seat. The roller rolls in contact with the other of the front wiping plate and the brush head body. The guide rail seat is fixed on one of the front wiping plate and the brush head body. The guide bar is fixed on the other of the front wiping plate and the brush head body. The guide rail seat is used to limit the moving direction of the guide bar.

14. The vacuum cleaner brush head according to claim 1 or 10, characterized in that: At least one set of guide devices is provided between the rear wiping plate and the bottom of the brush head body; The guide device includes a roller, a roller seat, a guide bar, and a guide rail seat. The roller seat is fixed on one of the rear wiping plate and the brush head body. The roller is rotatably mounted on the roller seat. The roller rolls in contact with the other of the rear wiping plate and the brush head body. The guide rail seat is fixed on one of the rear wiping plate and the brush head body. The guide bar is fixed on the other of the rear wiping plate and the brush head body. The guide rail seat is used to limit the moving direction of the guide bar.

15. The vacuum cleaner brush head according to claim 13, characterized in that: The guide rail seat comprises a first seat body and a second seat body, and the guide rail bar is passed through the gap between the first seat body and the second seat body.

16. The vacuum cleaner brush head according to claim 14, characterized in that: The guide rail seat comprises a first seat body and a second seat body, and the guide rail bar is passed through the gap between the first seat body and the second seat body.

17. The vacuum cleaner brush head according to claim 1, characterized in that: The water spray port of the water spray assembly is provided with a nozzle, and the nozzle is detachably mounted on the bottom of the brush head body.

18. The vacuum cleaner brush head according to claim 1, characterized in that The dust suction pipeline includes an internal pipeline and a flexible joint. The internal pipeline is located in the brush head body and one end is connected to the dust suction port. The other end of the internal pipeline is inserted into the flexible joint, and the flexible joint is fixed on the brush head body.

19. The vacuum cleaner brush head according to claim 18, characterized in that 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, the second end of the first sleeve is hinged to the second sleeve, the outer tube is sleeved in the second sleeve, the internal pipeline passes through the first sleeve and is connected to the outer tube, and the outer tube and the second sleeve are locked by a key.

20. The vacuum cleaner brush head according to claim 19, characterized in that 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.

21. The vacuum cleaner brush head according to claim 1, characterized in that The water spray assembly includes a water tank, which includes a tank body, a tank cover and a water-isolating pad. The tank cover is arranged on the top of the tank body, and the lower part of the tank body has a water outlet. The water-isolating pad is arranged in the tank body and divides the tank body into an upper chamber and a lower chamber. The lower chamber is used to store water. The height of the central area of ​​the water-isolating pad is smaller than the height of the edge area, and the central area of ​​the water-isolating pad has a water inlet for injecting water into the lower chamber. The tank cover is configured to open or close the water inlet.

22. A dust collection method, characterized in that: Use the vacuum cleaner brush head as described in any one of claims 1 to 21 to perform the following operations: Activate the negative pressure generating device so that the garbage is sucked away by the suction pipe at the suction port; Activating the wiper driving device configured to drive the front wiper and the rear wiper to move back and forth in opposite directions; The water spray assembly is activated according to a preset time interval and water volume, so that the front wiping plate performs dry wiping on the surface to be cleaned and the rear wiping plate performs wet wiping on the surface to be cleaned.

23. The dust collection method according to claim 22, characterized in that: Also includes: Detect whether the brush head body is located on the ground, and when the brush head body leaves the ground, turn off the water spray assembly.

24. The dust collection method according to claim 22, wherein: Also includes: Receive control instructions sent by the mobile terminal to control the operation of the vacuum cleaner brush head, and the control instructions include one or more of the water spray component start and close instructions, the wiper drive device start and close instructions, the negative pressure generating device start and close instructions, the water spray time interval, and the suction volume.

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