Pool cleaner

Abstract

The utility model discloses a pool cleaner which comprises the following components: a housing which defines an accommodating chamber and comprises a water inlet and a water outlet; the brush head assembly is connected with the shell; the filter element is arranged at the bottom of the accommodating cavity of the shell and is in fluid communication with the water outlet, and the filter element comprises an upper end surface and a lower end surface; the filter part is arranged in the accommodating cavity of the shell, and the filter part abuts against the lower end face of the filter element and is in fluid communication with the water inlet. According to the utility model, large-particle substances and fine dirt can be effectively filtered in sequence.

Description

Technical Field

[0001] This utility model relates to the field of pool cleaning, and in particular to a pool cleaner. Background Technology

[0002] To keep pools clean, pool cleaners are becoming increasingly popular. These cleaners are equipped with a motor that drives an impeller, creating a vacuum that sucks dirt and leaves from the bottom of the pool into a filter chamber for filtration, thus cleaning the pool and reducing the need for water changes.

[0003] Existing sink cleaners only filter the water flowing through them once via a filter screen, often only able to filter larger particles or leaves, but unable to filter fine dirt. Typically, when users push the sink cleaner forward to clean in the sink, the brush head can easily cause dirt to drift away from the inlet, failing to effectively draw the dirt into the filter chamber. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing pool cleaners only filter water through a single filter screen, often only filtering larger particles or leaves, but failing to filter fine dirt. This invention provides a pool cleaner with a dual filtration system that effectively filters large particles and fine dirt sequentially.

[0005] To solve the above-mentioned technical problems, the present invention discloses a water tank cleaner, comprising: a housing defining a receiving chamber and including a water inlet and a water outlet; a brush head assembly connected to the housing; a filter element disposed at the bottom of the receiving chamber of the housing and in fluid communication with the water outlet, the filter element including an upper end face and a lower end face; and a filter element disposed within the receiving chamber of the housing, the filter element abutting against the lower end face of the filter element and in fluid communication with the water inlet.

[0006] Preferably, the filter element includes a first through hole, and the filter element includes: a first end, including an annular connecting portion; and a second end, abutting against the lower end face of the filter element and including a positioning boss, the positioning boss being disposed within the first through hole of the filter element.

[0007] Preferably, the housing includes: a first housing including a step disposed on the inner sidewall of the first housing; and a second housing detachably connected to the first housing; the annular connecting portion is disposed on the step and located between the first housing and the second housing.

[0008] Preferably, the first housing further includes a limiting post disposed on the bottom wall of the first housing, the filter element is mounted on the limiting post, and the upper end face of the filter element abuts against the bottom wall of the first housing.

[0009] Preferably, the pool cleaner further includes a water pump assembly comprising: a motor; an impeller driven by the motor; and a battery supplying power to the motor.

[0010] Preferably, the brush head assembly includes: a brush head housing including a sidewall; a gear set disposed on the sidewall; a wheel disposed on the sidewall and connected to the gear set; and a roller brush connected to the gear set.

[0011] Preferably, the gear set includes: a first gear connected to the roller brush; a second gear meshing with the first gear; and a third gear meshing with the second gear and disposed on the wheel.

[0012] Preferably, the roller brush includes a second through hole disposed along its axial direction, and a boss is provided in the second through hole; the first gear includes: a first extension shaft extending along the end face of the first gear and disposed in the second through hole and including a hook, the hook being connected to the boss.

[0013] Preferably, the sidewall of the brush head housing includes a first mounting hole, a first bushing is disposed in the first mounting hole, and the first extension shaft extends through the first bushing and is disposed in the second through hole.

[0014] Preferably, a first groove is provided on the inner wall of the first mounting hole, and a first protrusion that mates with the first groove is provided on the outer wall of the first bushing.

[0015] Preferably, the housing is provided with a charging interface, which includes a T-shaped slot and electrode posts disposed on both sides of the slot.

[0016] This application achieves dual filtration by installing a filter element and a filter cartridge within the housing cavity, with the filter cartridge positioned downstream of the filter element. This allows the filter element to perform a first stage of filtration, removing larger particles such as leaves, and then the filter cartridge performs a second stage of filtration, removing algae, fine particles, and other contaminants from the water. In other words, the filter element and filter cartridge together achieve dual filtration, thereby effectively improving the filtration efficiency. Attached Figure Description

[0017] Figure 1 A perspective view of a water tank cleaner according to an embodiment of the present invention is shown;

[0018] Figure 2 An exploded view of the water tank cleaner according to an embodiment of the present invention is shown;

[0019] Figure 3 A cross-sectional view of a water tank cleaner according to an embodiment of the present invention is shown;

[0020] Figure 4 A perspective view of the charging structure on the housing according to another embodiment of the present invention is shown;

[0021] Figure 5 Show Figure 4 A sectional view;

[0022] Figure 6 Show Figure 3 A magnified view of a portion of region B;

[0023] Figure 7 Show Figure 3 A magnified view of a portion of region A;

[0024] Figure 8 A perspective view of the first housing according to an embodiment of the present invention is shown;

[0025] Figure 9 A bottom view of the brush head assembly according to an embodiment of the present invention is shown;

[0026] Figure 10 This diagram shows a partial exploded view of the brush head assembly according to an embodiment of the present invention;

[0027] Figure 11 A perspective view of the third bushing according to an embodiment of the present invention is shown;

[0028] Figure 12 A cross-sectional view of the brush head assembly according to an embodiment of the present invention is shown;

[0029] Figure 13 A side view of a brush head assembly according to an embodiment of the present invention is shown, wherein the cover is not shown;

[0030] Figure 14 A perspective view of the first gear according to an embodiment of the present invention is shown;

[0031] Figure 15 Show Figure 12 A magnified view of region C.

[0032] Figure label:

[0033] 100. Pool cleaner;

[0034] 200. Brush head assembly; 201. Connecting tube; 202. Pin; 203. Suction port;

[0035] 210. Brush head housing; 211. Side wall; 212. Third extension shaft; 213. Third protrusion; 214. Second extension shaft; 215. Second protrusion; 216. First mounting hole; 217. First groove; 218. Cover;

[0036] 220. Wheel; 221. Second center hole;

[0037] 230. Gear set; 231. First gear; 232. Second gear; 233. Third gear; 234. First center hole; 235. First extension shaft; 236. Hook;

[0038] 240. Third bushing; 241. Third mounting hole; 242. Third connecting part; 243. Third limiting part; 244. Third groove;

[0039] 250. Second bushing; 251. Second mounting hole; 252. Second connecting part; 253. Second limiting part; 254. Second groove;

[0040] 260. First bushing; 261. First protrusion;

[0041] 270. Roller brush; 271. Second through hole; 272. Boss;

[0042] 300. Shell; 301. Receiving chamber; 302. Inlet; 303. Outlet;

[0043] 310. First housing; 311. First chamber; 312. Slot; 313. Step; 314. Limiting post; 315. Hollow portion; 316. Grille; 317. Bottom wall of the first housing;

[0044] 320. Second housing; 321. First connecting end; 322. Second connecting end; 323. Second chamber; 324. Protrusion;

[0045] 330. First water flow channel;

[0046] 340. Second water flow channel;

[0047] 400. Filter components;

[0048] 410. Filter element; 411. Frame; 412. Filter chamber; 413. First end; 414. Second end; 415. First abutment surface; 416. Positioning boss; 417. Annular connecting part;

[0049] 420. Filter element; 421. First through hole; 422. First opening; 423. Second opening; 424. Lower end face; 425. Upper end face;

[0050] 500. Water pump assembly;

[0051] 501. Motor; 502. Impeller; 503. Battery;

[0052] 600. Protective cover; 601. Slot; 602. Electrode post. Detailed Implementation

[0053] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0054] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0056] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0057] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0058] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0059] refer to Figures 1 to 3 This application provides a pool cleaner 100 for cleaning pools, inflatable massage pools, bracket pools, or roads with a lot of water. This embodiment only uses the pool cleaner 100 to clean a pool as an example for illustration.

[0060] The pool cleaner 100 of this application embodiment includes a brush head assembly 200 and a housing 300 connected to the brush head assembly 200. The brush head assembly 200 is adapted to contact the bottom or wall of the pool to clean it. The housing 300 is hollow, defining a receiving chamber 301. The housing 300 includes an inlet 302 and an outlet 303. Along the water flow path from the inlet 302 to the outlet 303, a filter assembly 400 and a water pump assembly 500 are sequentially installed within the receiving chamber 301. The water pump assembly 500 includes a motor 501, an impeller 502, and a battery 503. The impeller 502 is driven by the motor 501, and the battery 503 supplies power to the motor 501.

[0061] like Figure 1 and Figure 3 As shown, in this embodiment, a charging port is provided at the end of the housing 300 away from the brush head assembly 200 for connecting to a power source to charge the battery 503. A protective cover 600 is provided on the charging port to prevent water or dust from entering, thereby protecting the internal circuitry from damage. Optionally, in another embodiment, such as... Figure 4 and Figure 5 As shown, the charging interface at the end of the housing 300 furthest from the brush head assembly 200 can be configured as a slot 601 with a T-shaped structure. Electrode posts 602 protrude from both sides of the slot 601, and the electrode posts 602 are electrically connected to the battery 503. The slot 601 allows the insertion of a plug (not shown) with a T-shaped structure that matches the slot 601. The plug connects to a power source, and the electrode plates on the plug contact the electrode posts 602, thus achieving an electrical connection to power the battery 503. This structure of the slot 601 and plug ensures a stable electrical connection between the electrode posts 602 and the plug, while preventing water or dust from entering the charging interface and affecting charging stability. Those skilled in the art will understand that the structure of the charging interface of the pool cleaner 100 is not limited to the two described above.

[0062] refer to Figures 1 to 3While cleaning the bottom or walls of the pool, the brush head assembly 200 can gather dirt, leaves and other impurities located at the bottom of the pool, especially around the suction port 203, at the suction port 203 on the brush head housing 210 of the brush head assembly 200, preventing these dirt and leaves from deviating from the suction port 203 as the pool cleaner 100 moves in the pool and affecting the cleaning efficiency. The motor 501 installed inside the housing 300 starts, driving the impeller 502 to rotate, thereby generating a vacuum suction force inside the housing 300. Dirt and leaves are sucked into the housing 301 along with the water flowing through the receiving chamber 301 through the suction port 203 and the water inlet 302. The filter assembly 400 installed in the receiving chamber 301 filters the water flowing through the receiving chamber 301, so that dirt, leaves and other impurities are retained in the receiving chamber 301. The water filtered by the filter assembly 400 is discharged from the water outlet 303 above the housing 300 and flows back to the water tank, thereby achieving the effect of effectively cleaning the water tank and reducing the frequency of water changes.

[0063] like Figures 1 to 3 As shown, in this embodiment, the housing 300 includes a first housing 310 and a second housing 320, wherein the second housing 320 includes a first connecting end 321 and a second connecting end 322, and the first connecting end 321 is connected to the connecting tube 201 provided on the brush head assembly 200. Figure 9 As shown, the first housing 310 is connected to the second connecting end 322, which is connected to the first housing 310. The first housing 310 defines a first chamber 311, in which the filter assembly 400 is installed. The first chamber 311 is in fluid communication with the outlet 303 provided on the first housing 310. The second housing 320 defines a second chamber 323, in fluid communication with the inlet 302 provided on the second housing 320. The second chamber 323 and the first chamber 311 are in fluid communication, and the connection between the first housing 310 and the second housing 320 allows the second chamber 323 and the first chamber 311 to jointly define the receiving chamber 301 of the housing 300. In this embodiment, the connecting pipe 201 of the brush head assembly 200 is connected by a pin 202 ( Figure 9 As shown, the brush head assembly 200 is rotatably mounted on the brush head housing 210. The housing 300 can rotate relative to the brush head assembly 200 to change its tilt angle, making it convenient for the user to hold the sink cleaner 100 to clean the sink walls or corners. Those skilled in the art will understand that in other embodiments, other methods can be selected to achieve the rotatable connection between the brush head assembly 200 and the housing 300, such as bolt connection.

[0064] In this embodiment, as Figure 2As shown, the second connecting end 322 of the second housing 320 is provided with a protrusion 324, and the first housing 310 is provided with a slot 312 that matches the protrusion 324. The first housing 310 and the second housing 320 are aligned. By rotating the first housing 310, the protrusion 324 slides into the slot 312, thereby connecting the second housing 320 and the first housing 310. This connection method allows the user to easily disassemble and separate the first housing 310 and the second housing 320 to empty the dirt retained in the receiving chamber 301 after filtration. Those skilled in the art will understand that in other embodiments, the detachable connection of the first housing 310 and the second housing 320 can also be achieved in other ways, such as screw connection.

[0065] The specific structure of the filter component 400 will be described in detail below with reference to the accompanying drawings.

[0066] like Figures 1 to 3 As shown, the aforementioned filter assembly 400 includes a filter element 410 and a filter cartridge 420. The filter element 410 is disposed adjacent to the brush head assembly 200 in the first chamber 311 of the receiving chamber 301, that is, near the second connection end 322 of the second housing 320. The filter element 410 is in fluid communication with the water inlet 302. Water flows into the receiving chamber 301 through the water inlet 302 and undergoes the first stage of filtration through the filter element 410, i.e., the filter element 410 acts as the upstream filter element. Then, the water filtered by the filter element 410 undergoes a second stage of filtration through the filter cartridge 420 and flows back into the water tank through the water outlet 303, i.e., the filter cartridge 420 acts as the downstream filter element. Thus, the water in the water tank undergoes dual filtration through the filter element 410 and the filter cartridge 420, effectively improving the filtration effect.

[0067] The filter element 410 includes a frame 411 that encloses a filter chamber 412. A filter screen (not shown) is mounted on the frame 411. Water flows into the filter chamber 412 through the inlet 302 and flows out through the mesh of the filter screen, while retaining dirt, leaves, and other impurities within the filter chamber 412. For example, as... Figure 2 As shown, the frame 411 is shaped like a frustum. Those skilled in the art will understand that in other embodiments, the frame 411 can be cylindrical, square, or other suitable shapes, and the filter element 410 can be a mesh bag, as long as it can be installed in the first chamber 311 to achieve the filtration effect.

[0068] like Figure 2 and Figure 3As shown, the filter element 410 includes a first end 413 and a second end 414, which are arranged opposite to each other along the extending direction Z of the pool cleaner 100. In this embodiment, the first end 413 faces the water inlet 302 of the housing 300. Dirt, leaves, etc. at the bottom of the pool can enter the second chamber 323 through the water inlet 302 with the water flow, and enter the filter chamber 412 through the first end 413. The water in the filter chamber 412 flows out of the filter chamber 412 through the mesh of the filter screen, retaining dirt such as leaves in the filter chamber 412, thereby completing the first stage of filtration.

[0069] Furthermore, referring to Figure 3 The outer wall of the frame 411 of the filter element 410 is spaced apart from the inner wall of the first housing 310 to define a first water flow channel 330 between the filter element 410 and the first housing 310. The first water flow channel 330 is in fluid communication with the filter chamber 412. That is, water entering the filter chamber 412 can flow out of the filter chamber 412 through the mesh of the filter screen and thus enter the first water flow channel 330.

[0070] like Figure 2 , Figure 3 and Figure 6 As shown, the filter element 420 is disposed at the bottom of the receiving chamber 301 of the housing 300 and is in fluid communication with the outlet 303. Along the water flow direction from the inlet 302 to the outlet 303, the filter element 420 is located at the bottom of the receiving chamber 301. The filter element 420 includes a lower end face 424 and an upper end face 425, and the filter element 410 abuts against the lower end face 424 of the filter element 420. That is, the filter element 420 is located downstream of the filter element 410, and the filter element 410 is located upstream of the filter element 420.

[0071] The filter element 420 includes a first through hole 421, which extends through the upper end face 425 and the lower end face 424 of the filter element 420 along the extension direction Z of the water tank cleaner 100. The first through hole 421 includes a first opening 422 and a second opening 423 that are disposed opposite to each other. The first opening 422 is located on the lower end face 424 of the filter element 420 and is disposed toward the filter element 410. The second opening 423 is disposed on the upper end face 425 of the filter element 420 and is disposed toward the water outlet 303.

[0072] Continue to refer to Figure 2 , Figure 3 , Figure 6 and Figure 7The first end 413 of the filter element 410 includes an annular connecting portion 417. Exemplarily, the annular connecting portion 417 is integrally disposed around the first end 413 along the circumferential direction of the filter element 410 and is sheet-shaped. The first housing 310 includes a step 313 disposed on the inner sidewall of the first housing 310. In this embodiment, the cross-section of the first housing 310 is circular, and the radial dimension of the end of the first housing 310 used for connection with the second housing 320 increases from small to large, thereby forming the step 313. The annular connecting part 417 is installed on the step 313 and located between the first housing 310 and the second housing 320. Thus, the step 313 of the first housing 310 and the ends of the second housing 320 together clamp the annular connecting part 417. Through the mutual cooperation of the aforementioned protrusion 324 and slot 312, while connecting the first housing 310 and the second housing 320 together, the filter element 410 is stably installed between the first housing 310 and the second housing 320, preventing the filter element 410 from shaking in the first chamber 311.

[0073] Continue to refer to Figure 2 , Figure 3 , Figure 6 and Figure 7 The second end 414 of the filter element 410 includes a first abutment surface 415 and a positioning boss 416. The positioning boss 416 protrudes from the first abutment surface 415 and is positioned within the first through hole 421 of the filter element 420 along the extension direction Z of the water tank cleaner 100, i.e., within the first opening 422. This serves as a guide for the installation of the filter element 410, achieving pre-positioning of the filter element 410 and the filter element 420, and preventing loosening of the fit between the filter element 410 and the filter element 420, which would affect the filtration effect. After the filter element 410 is installed, the first abutment surface 415 of the second end 414 of the filter element 410 abuts against the lower end surface 424 of the filter element 420. The filter element 410 can support the filter element 420 on the bottom wall 317 of the first housing 310, preventing the filter element 420 from becoming loose within the first housing 310.

[0074] In this embodiment, after the filter element 410 and filter cartridge 420 are installed in the first housing 310, the positioning boss 416 is located in the first through hole 421, and the lower end face 424 of the filter cartridge 420 abuts against the first contact surface 415 of the filter element 410. Thus, the positioning boss 416 and the first contact surface 415 jointly seal the first opening 422 of the first through hole 421, preventing the water that has undergone the first filtration from entering the first through hole 421 through the first opening 422 and flowing directly into the water tank from the outlet 303, thereby affecting the second filtration of the filter cartridge 420. In this embodiment, the second end 414 of the filter element 410 closes the first opening 422 of the filter element 420. That is, the water flowing through the filter chamber 412 of the filter element 410 does not directly enter the first through hole 421 through the first opening 422, but flows out of the filter chamber 412 through the mesh of the filter screen, enters the first water flow channel 330, and then flows into the second water flow channel 340 formed by the interval between the filter element 420 and the first housing 310. The water flows from the second water flow channel 340 into the first through hole 421. The filter element 420 can perform a second filtration on the water flow, filtering out fine dirt in the water, such as mud and sand. Then the water flow filtered by the filter element 420 flows out of the first through hole 421 through the second opening 423 and flows into the water tank from the outlet 303 of the housing 300.

[0075] like Figure 3 , Figure 6 and Figure 7 As shown, in this embodiment, a limiting post 314 is provided on the bottom wall 317 of the first housing. The limiting post 314 extends toward the positioning boss 416 of the filter element 410, and the filter element 420 is mounted on the limiting post 314. That is, the limiting post 314 is inserted into the first through hole 421 through the second opening 423 of the filter element 420, and the filter element 420 is sleeved on the limiting post 314. The outer wall of the limiting post 314 abuts against the inner wall of the first through hole 421, thereby limiting the position of the filter element 420 by the limiting post 314, and preventing the filter element 420 from shaking in the direction perpendicular to the extension direction Z of the water cleaner 100. In this embodiment, the upper end face 425 of the filter element 420 abuts against the bottom wall 317 of the first housing, further limiting the filter element 420, and preventing the filter element 420 from loosening in the extension direction Z of the water cleaner 100, thereby affecting the filtration effect. In other words, the filter element 420 is held in place by the engagement of the limiting post 314 and the positioning boss 416 along the extension direction Z of the water tank cleaner 100, thus preventing the filter element 420 from moving within the first chamber 311.

[0076] Preferably, in this embodiment, such as Figure 8As shown, the limiting post 314 is a hollow cylinder, and its hollow portion 315 is equipped with a grid 316 to prevent leakage of dirt from the containment chamber 301, especially the filter chamber 412, which could then block the outlet 303. The hollow portion 315 connects the first through hole 421 of the filter element 420 and the outlet 303, so that water that has undergone secondary filtration by the filter element 420 enters the first through hole 421 and then flows into the water tank from the outlet 303 through the hollow portion 315.

[0077] like Figure 2 , Figure 3 and Figure 6 As shown, the outer wall of the filter element 420 is spaced apart from the inner wall of the first housing 310 to define a second water flow channel 340 between the filter element 420 and the first housing 310. The first water flow channel 330 and the second water flow channel 340 are in fluid communication. The water flow after the first filtration by the filter element 410 flows into the second water flow channel 340 through the first water flow channel 330. The filter element 420 performs a second filtration on the water flow. The water flow after the second filtration then flows into the first through hole 421 and into the water tank through the outlet 303.

[0078] refer to Figures 1 to 3 as well as Figure 6 Using the above technical solution, the brush head assembly 200 gathers dirt and leaves around the suction port 203 at the suction port 203 on the brush head housing 210 of the brush head assembly 200. The motor 501 in the receiving chamber 301 of the housing 300 is started, driving the impeller 502 to rotate and generate vacuum suction in the receiving chamber 301 of the housing 300. The dirt and leaves around the suction port 203 will enter the receiving chamber 301 of the housing 300 with the water flow through the inlet 302, and enter the filter chamber 412 through the first end 413 of the filter element 410. Then the water in the filter chamber 412 flows out of the filter chamber 412 through the mesh of the filter screen, leaving the dirt and leaves in the filter chamber 412, thus completing the first stage of filtration. Water filtered by filter element 410 flows out of filter chamber 412 and then flows into first through hole 421 through first water flow channel 330 and second water flow channel 340. During the process of water flowing from second water flow channel 340 into first through hole 421, filter element 420 performs a second filtration, removing fine impurities such as silt and algae from the water. Water that has undergone the second filtration flows out of first through hole 421 through second opening 423 and out of receiving chamber 301 of housing 300 from outlet 303, thus flowing into the pool.

[0079] In summary, this embodiment performs a first stage of filtration through filter element 410 to remove dirt such as leaves, and then performs a second stage of filtration through filter cartridge 420 to remove fine dirt such as mud and algae from the water. In other words, this embodiment achieves dual filtration through filter element 410 and filter cartridge 420, effectively improving the filtration effect of the pool cleaner 100.

[0080] The specific structure of the brush head assembly 200 will be described in detail below with reference to the accompanying drawings.

[0081] refer to Figure 2 , Figure 9 and Figure 10 The brush head assembly 200 includes a brush head housing 210, a wheel 220, a gear set 230, and a roller brush 270. The brush head housing 210 includes a sidewall 211. The gear set 230 is mounted on the sidewall 211 and rotates relative to it. The wheel 220 is mounted on the sidewall 211 and rotates relative to it. The wheel 220 is connected to the gear set 230, and the roller brush 270 is also connected to the gear set 230. When the user pushes the sink cleaner 100 forward or backward, the rotation of the wheel 220 drives the rotation of the gear set 230, which in turn drives the roller brush 270 to rotate. During the movement of the sink cleaner 100, the roller brush 270 cleans dirt from the bottom or sidewalls of the sink.

[0082] Continue to refer to Figure 2 , Figure 9 and Figure 10 The brush head housing 210 includes two side walls 211, located on opposite sides of the roller brush 270 along the axial direction X. Each side wall 211 is equipped with a wheel 220 and a gear set 230, and each side wall 211 is fitted with a cover 218. The cover 218 conceals the wheel 220 and gear set 230 on the side wall 211, improving aesthetics and preventing dirt in the pool from affecting the normal operation of the wheel 220 and gear set 230. During the movement of the wheel 220, the two ends of the roller brush 270 along the axial direction X are driven by the wheel 220 to rotate, thus providing rotational driving force for the gear set 230. This allows the roller brush 270 to rotate to clean the pool. This embodiment only describes the wheel 220, gear set 230 on one side wall 211 of the brush head housing 210 and their connection to the roller brush 270 as an example.

[0083] like Figure 10 , Figure 12 , Figure 13As shown, the gear set 230 includes a first gear 231, a second gear 232, and a third gear 233. The third gear 233 meshes with the second gear 232 and is mounted on the wheel 220. The second gear 232 meshes with the first gear 231, and the first gear 231 is connected to the roller brush 270. In this embodiment, the wheel 220 and the third gear 233 are integrally mounted and coaxial. Those skilled in the art will understand that the wheel 220 and the third gear 233 can be independently coaxial. When the user pushes the pool cleaner 100, the rotation of the wheel 220 causes the integrally mounted third gear 233 to rotate as well. The rotation of the third gear 233 drives the meshing second gear 232 to rotate synchronously, and the rotation of the second gear 232 causes the meshing first gear 231 to rotate synchronously. Thus, the first gear 231 drives the roller brush 270 to rotate. The brush head assembly 200 transmits power layer by layer through the gear set 230, causing the roller brush 270 to rotate and gather dirt in the pool to the suction port 203 of the brush head housing 210. Under the vacuum suction generated by the motor 501, the dirt enters the receiving chamber 301 of the housing 300 through the water inlet 302, thereby filtering the water in the pool and achieving the effect of cleaning the pool.

[0084] like Figure 10 and Figure 11 As shown, a third extension shaft 212 is provided on the side wall 211, and a third protrusion 213 is provided on the third extension shaft 212. The third bushing 240 includes a third mounting hole 241, a third connecting part 242 and a third limiting part 243. The third mounting hole 241 passes through the third connecting part 242 and the third limiting part 243, and the hole wall of the third mounting hole 241 is provided with a third groove 244.

[0085] Continue to refer to Figure 10 , Figure 11 and Figure 12The wheel 220 has a second central hole 221 at its center. The third connecting part 242 of the third bushing 240 passes through the second central hole 221 and is sleeved on the third extension shaft 212. The third protrusion 213 is embedded in the third groove 244 on the third bushing 240, and the cross-sectional area of ​​the third limiting part 243 of the third bushing 240 is larger than the cross-sectional area of ​​the second central hole 221 of the wheel 220. That is, the third bushing 240 is connected to the third extension shaft 212 by being embedded in the third groove 244 through the third protrusion 213. The cross-sectional area of ​​the third limiting part 243 of the third bushing 240 is larger than the cross-sectional area of ​​the second central hole 221 of the wheel 220. Therefore, the wheel 220 is disposed between the side wall 211 and the third limiting part 243 of the third bushing 240. The third limiting part 243 can prevent the wheel 220 from moving along the axial direction X of the roller brush 270, or even from sliding off the third bushing 240. The wheel 220 can rotate around the third connecting part 242, so that the wheel 220 can rotate relative to the side wall 211. The user can push the pool cleaner 100 to move it in the pool to clean the bottom or the wall of the pool.

[0086] like Figure 10 , Figure 12 and Figure 13 As shown, a second extension shaft 214 is provided on the side wall 211, and a second protrusion 215 is provided on the second extension shaft 214. In this embodiment, the second bushing 250 and the third bushing 240 have the same structure. The second bushing 250 includes a second mounting hole 251, a second connecting portion 252, and a second limiting portion 253. The second mounting hole 251 passes through the second connecting portion 252 and the second limiting portion 253, and the hole wall of the second mounting hole 251 is provided with a second groove 254. The center of the second gear 232 is provided with a first central hole 234. The second connecting portion 252 of the second bushing 250 passes through the first central hole 234 and is sleeved on the second extension shaft 214. The second protrusion 215 is embedded in the second groove 254, and the cross-sectional area of ​​the second limiting portion 253 of the second bushing 250 is larger than the cross-sectional area of ​​the first central hole 234 of the second gear 232. Therefore, those skilled in the art will understand that the second gear 232 can adopt the same structure as the wheel 220 on the side wall to be mounted on the side wall 211. The second bushing 250 is mounted on the second extension shaft 214 through the cooperation of the second protrusion 215 and the second groove 254. The cross-sectional area of ​​the second limiting part 253 of the second bushing 250 is larger than the cross-sectional area of ​​the first central hole 234 of the second gear 232. Therefore, the second gear 232 is disposed between the side wall 211 and the second limiting part 253 of the second bushing 250 and can rotate around the second connecting part 252. The second limiting part 253 can prevent the second gear 232 from moving along the axial direction X of the roller brush 270 or even sliding off the second bushing 250.

[0087] like Figure 10 , Figure 12 and Figure 15 As shown, the roller brush 270 includes a second through hole 271 extending along its axial direction X, and a boss 272 is provided in the second through hole 271.

[0088] like Figure 10 and Figure 14 As shown, the first gear 231 includes a first extension shaft 235, which extends along the end face of the first gear 231 and is disposed within the second through hole 271. The first extension shaft 235 includes a hook 236, which is connected to the boss 272 by a snap-fit ​​mechanism to restrict the first extension shaft 235 from moving along its axial direction X. The first extension shaft 235 is inserted into the second through hole 271, and the hook 236 is snap-fitted to the boss 272, preventing the first extension shaft 235 from disengaging from the second through hole 271, thereby improving the stability and reliability of the connection between the first gear 231 and the roller brush 270.

[0089] Those skilled in the art will understand that in this embodiment, the first gear 231 is connected to the roller brush 270 through the engagement of the hook 236 and the boss 272. In other embodiments, other methods can be selected to connect the first gear 231 and the roller brush 270, such as screw connection, riveting, etc.

[0090] Continue to refer to Figure 10 and Figure 14 The sidewall 211 of the brush head housing 210 includes a first mounting hole 216, within which a first bushing 260 is disposed. A first extension shaft 235 extends through the first bushing 260 and is disposed within a second through hole 271. A first groove 217 is provided on the inner wall of the first mounting hole 216, and a first protrusion 261 that mates with the first groove 217 is provided on the outer wall of the first bushing 260. The first extension shaft 235 passes through the first mounting hole 216 on the sidewall 211 and is disposed within the second through hole 271 of the roller brush 270. The first bushing 260 is disposed within the first mounting hole 216 through the engagement of the first protrusion 261 and the first groove 217. Therefore, the first gear 231 can drive the first extension shaft 235 to rotate around the first bushing 260, thereby driving the roller brush 270 to rotate to clean the water tank.

[0091] In this embodiment, the arrangement of the roller brush 270 can smoothly bring the dirt around the brush head assembly 200 into the area around the suction port 203 in advance, preventing the brush head housing 210 of the brush head assembly 200 from pushing the dirt to both sides of the brush head assembly 200, thereby effectively sucking the dirt into the receiving chamber 301 for filtration.

[0092] Those skilled in the art will understand that in this embodiment, the power transmission from the wheel 220 to the roller brush 270 is achieved by the first gear 231, the second gear 232 and the third gear 233. However, in other embodiments, other methods can be selected to achieve the transmission connection between the wheel 220 and the roller brush 270, such as a chain.

[0093] Thus, this application satisfactorily describes the specific structure of the pool cleaner 100, which is equipped with a dual filtration device that can effectively filter large particles and fine dirt sequentially. The brush head assembly 200 of the pool cleaner 100 is equipped with a roller brush 270. By pushing the pool cleaner 100 to move, the roller brush 270 can rotate, at which time the roller brush 270 can bring leaves and dirt to the suction port 203, so that the dirt can be easily collected.

[0094] Those skilled in the art will understand that the technical solution of this pool cleaner 100 can be applied to almost all types of pools and surfaces with a large amount of standing water. For example, inflatable pools, framed pools, puddles, etc.

[0095] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A pool cleaner, characterized in that, include: The shell defines a receiving chamber and includes an inlet and an outlet; The brush head assembly is connected to the housing; A filter element is disposed at the bottom of the receiving chamber of the housing and is in fluid communication with the water outlet. The filter element includes an upper end face and a lower end face. A filter element is disposed in the receiving cavity of the housing, the filter element abutting the lower end face of the filter element and in fluid communication with the water inlet.

2. The pool cleaner as described in claim 1, characterized in that, The filter element includes a first through hole, and the filter element includes: The first end includes an annular connecting portion; The second end abuts against the lower end face of the filter element and includes a positioning boss, which is disposed in the first through hole of the filter element.

3. The pool cleaner as described in claim 2, characterized in that, The housing includes: The first housing includes a step disposed on the inner sidewall of the first housing; and The second housing is detachably connected to the first housing; The annular connecting portion is disposed on the step and located between the first housing and the second housing.

4. The pool cleaner as described in claim 3, characterized in that, The first housing further includes a limiting post disposed on the bottom wall of the first housing, the filter element is mounted on the limiting post, and the upper end face of the filter element abuts against the bottom wall of the first housing.

5. The pool cleaner as described in claim 1, characterized in that, The pool cleaner also includes a water pump assembly, which comprises: motor; The impeller is driven by the motor; and The battery supplies power to the motor.

6. The pool cleaner as described in claim 1, characterized in that, The brush head assembly includes: Brush head housing, including sidewalls; The gear set is disposed on the side wall; A wheel, mounted on the sidewall, and connected to the gear set; and A roller brush, connected to the gear set.

7. The pool cleaner as described in claim 6, characterized in that, The gear set includes: The first gear is connected to the roller brush; The second gear meshes with the first gear; The third gear meshes with the second gear and is mounted on the wheel.

8. The pool cleaner as described in claim 7, characterized in that, The roller brush includes a second through hole disposed along its axial direction, and a boss is provided in the second through hole; The first gear includes: A first extension shaft extends along the end face of the first gear and is disposed within the second through hole and includes a latch, the latch being connected to the boss.

9. The pool cleaner as described in claim 8, characterized in that, The sidewall of the brush head housing includes a first mounting hole, a first bushing is disposed in the first mounting hole, and the first extension shaft extends through the first bushing and is disposed in the second through hole.

10. The pool cleaner as described in claim 9, characterized in that, A first groove is provided on the inner wall of the first mounting hole, and a first protrusion that mates with the first groove is provided on the outer wall of the first bushing.

11. The pool cleaner as described in claim 1, characterized in that, The housing is provided with a charging interface, which includes a T-shaped slot and electrode posts disposed on both sides of the slot.

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