WO2026009074A1

WO2026009074A1 - Brush drive and mounting apparatus for a pool cleaner

Info

Publication number: WO2026009074A1
Application number: PCT/IB2025/056217
Authority: WO
Inventors: Zhi Xiong Huang; Wen Xiao ZHANG
Original assignee: Intex Industries Xiamen Co Ltd
Current assignee: Intex Industries Xiamen Co Ltd
Priority date: 2024-07-02
Filing date: 2025-06-18
Publication date: 2026-01-08
Anticipated expiration: 2027-01-02

Abstract

The present disclosure provides a cleaner with a drive structure including a unidirectional driver and a brush. The driver comprises a rotatable member, first and second oppositely rotating driving wheels, a driven wheel, and a reversing wheel. The rotatable member is unidirectionally coupled with the driving wheels. The first driving wheel meshes with the driven wheel, the second is coupled to the driven wheel through the reversing wheel, and the brush is connected to and rotates with the driven wheel. Also, a brush mounting structure includes a brush, a disassembly and assembly ("D/A") component, and first and second mounting parts, the first having a mounting hole having a mounting gap. The D/A component is mounted in the hole, cooperates with the first part, and includes a block that slides within the gap. The brush plugs in to the D/A component and the second part and rotates relative thereto.

Description

BRUSH DRIVE AND MOUNTING APPARATUS FOR A POOL CLEANER

RELATED APPLICATIONS:

[0001] The present application claims priority to Chinese Patent Application No. CN202410881089.0; Chinese Utility Model Application No. CN202421544614.1 ; and Chinese Patent Application No. CN202421548568.2, the entire disclosures of which are expressly incorporated by reference herein.

[0002] The present application is further related to PCT Application No. (unknown), filed June 16, 2025, titled ELECTRIC CLEANER AND FILTER BOX, docket IRC-0192-01 -WO; PCT Application No. (unknown), filed June 16, 2025, titled A SWIMMING POOL CLEANER AND CONTROL METHOD, docket IRC-0195-01 -WO; PCT Application No. (unknown), filed June 16, 2025, titled A DRIVE CONTROL DEVICE AND SEALING STRUCTURE FOR A POOL CLEANER, docket IRC-0196-01- WO; Chinese Patent Application No. CN202410878353.5 (priority application for IRC- 0192-01 -WO); Chinese Utility Model Application No. CN202421548554.0 (priority application for IRC-0192-01 -WO); Chinese Patent Application No. CN202421545018.5 (priority application for IRC-0192-01 -WO); Chinese Patent Application No.

CN202411005754.6 (priority application for IRC-0195-01 -WO); Chinese Utility Model Application No. CN202421772342.0 (priority application for IRC-0195-01 -WO); Chinese Utility Model Application No. CN202421544538.4 (priority application for IRC-0196-01- WO); and Chinese Utility Model Application No. CN202421544882.3 (priority application for IRC-0196-01 -WO), the entire disclosures of which are expressly incorporated by reference herein.

FIELD OF THE DISCLOSURE:

[0003] The present disclosure relates to pool cleaners, and more specifically to a unidirectional drive structure and a mounting structure for a brush of a pool cleaner.

BACKGROUND:

[0004] After long-term use, a pool will accumulate dirt at the bottom, and it is necessary to clean the pool regularly. At present, many people use pool cleaners that can move around in the pool for cleaning. The pool cleaner is equipped with brush wheels to clean the bottom of the pool. The suction inlet of the pool cleaner is adjacent to the brush wheel, which can push the dirt to the suction inlet.

[0005] However, in existing pool cleaners, the brush wheel switches between forward and reverse rotation when the pool cleaner moves forward and backward. This means that during certain periods (such as when the pool cleaner is moving forward or backward), the rotation of the brush wheel pushes the dirt away from the suction inlet, affecting the absorption of dirt by the suction inlet and thus reducing the cleaning efficiency.

[0006] To address this problem, it is desirable to develop a pool cleaner with a unidirectional drive structure for the brush wheel, which can ensure that the brush wheel always rotates in a fixed direction when the pool cleaner moves.

[0007] As indicated above, when the pool cleaner is in use, the power mechanism of the pool cleaner drives the pool cleaner to move, and at the same time, the power mechanism drives the wheel brush to rotate, so that the wheel brush can clean the dirt attached to the bottom and walls of the pool. However, due to the longterm friction between the wheel brush and the bottom and walls of the pool, the wheel brush will wear out and need to be replaced. Therefore, it is desirable to have a wheel brush mounting structure for a pool cleaner that makes it easy to replace the wheel brush.

SUMMARY:

[0008] In an exemplary embodiment of the present disclosure, a unidirectional drive structure for a brush wheel of a pool cleaner having a cleaner body is provided. The unidirectional drive structure may comprise a unidirectional driver. The unidirectional driver may include a drive member rotatably coupled to the cleaner body; a first driving wheel; a second driving wheel; a driven wheel; and a reversing wheel. The drive member may be unidirectionally coupled with the first and second driving wheels, which rotate in opposite unidirectional directions. The first driving wheel may mesh with the driven wheel. The second driving wheel may be coupled to the driven wheel through the reversing wheel. The reversing wheel may mesh with both the second driving wheel and the driven wheel. The brush wheel may be coupled to the driven wheel and rotates synchronously the driven wheel.

[0009] In an example thereof, the first driving wheel may have a set of first unidirectional ratchet teeth on an inner side of the first driving wheel. The drive member may include a first unidirectional engaging member which has at least two first unidirectional ratchet claws that engage unidirectionally with the set of first unidirectional ratchet teeth. In a variation thereof, the drive member may be coaxially connected with the first unidirectional engaging member.

[0010] In another example thereof, the second driving wheel may have a set of second unidirectional ratchet teeth on an inner side of the second driving wheel. The drive member may include a second unidirectional engaging member which has at least two second unidirectional ratchet claws that engage unidirectionally with the set of second unidirectional ratchet teeth. In a variation thereof, the drive member may be coaxially connected with the second unidirectional engaging member.

[0011] In a further example thereof, the driven wheel may have a first gear section and a second gear section arranged coaxially relative to the first gear section. The first gear section may mesh with the first driving wheel. The second gear section may mesh with the reversing wheel. In a variation thereof, a diameter of the second gear section may be smaller than a diameter of the first gear section.

[0012] In still another example thereof, the brush wheel may be coaxially connected with the driven wheel.

[0013] In another exemplary embodiment of the present disclosure, a pool cleaner is provided. The pool cleaner may comprise a first unidirectional drive structure for a first brush wheel of the pool cleaner. The first unidirectional drive structure may comprise a unidirectional driver. The unidirectional driver may include a drive member rotatably coupled to a cleaner body of the pool cleaner; a first driving wheel; a second driving wheel; a driven wheel; and a reversing wheel. The drive member may be unidirectionally coupled with the first and second driving wheels, which rotate in opposite unidirectional directions. The first driving wheel may mesh with the driven wheel. The second driving wheel may be coupled to the driven wheel through the reversing wheel which may mesh with both the second driving wheel and the driven wheel. The first brush wheel may be coupled to the driven wheel and rotates synchronously the driven wheel.

[0014] In an example thereof, the pool cleaner may further comprise a second unidirectional drive structure and a second brush wheel. The first brush wheel and the second brush wheel may be located on opposite sides of the cleaner body of the pool cleaner. In a variation thereof, the pool cleaner may further comprise two drive motors. Each drive motor may drive a drive member of one of the first and second unidirectional drive structures for the first and second brush wheels. In another variation thereof, the cleaner body may include two suction inlets. Each suction inlet may be adjacent to one of the first and second brush wheels of the first and second unidirectional drive structures. In a further variation thereof, the first brush wheel may include first bristles and the second brush wheel may include second bristles. The first bristles may touch an edge of one of the two suction inlets and the second bristles may touch an edge of the other of the two suction inlets.

[0015] In yet another exemplary embodiment of the present disclosure, a wheel brush mounting structure for a pool cleaner having a cleaner body is provided. The wheel brush mounting structure may comprise a wheel brush; a disassembly and assembly component; and a first mounting part and a second mounting part set on the cleaner body. The first mounting part and the second mounting part may be aligned with one another. The first mounting part may include a mounting hole having a side wall. The side wall of the mounting hole may include a mounting gap along an axial direction of the first mounting part. The disassembly and assembly component may be movably mounted in the mounting hole and may cooperate with the first mounting part. The disassembly and assembly component may include a disassembly and assembly block that slides within the mounting gap. The disassembly and assembly component may be in plug-in cooperation with a first end of the wheel brush. The wheel brush may rotate relative to the disassembly and assembly component. A second end of the wheel brush may be in plug-in cooperation with the second mounting part. The wheel brush may rotate relative to the second mounting part.

[0016] In an example thereof, the first end of the wheel brush may include a first connecting column. The disassembly and assembly component may include a sleeve hole for receiving the first connecting column. In a variation thereof, the sleeve hole may include a sleeve receiving the first connecting column. In another variation thereof, a diameter of the first connecting column may be smaller than a diameter of the mounting gap. The first connecting column extends into the mounting hole.

[0017] In another example thereof, the mounting hole of the first mounting part may include a positioning spring sheet which may include a positioning convex particle. The disassembly and assembly component may include at least one positioning groove that engages the positioning convex particle. In a variation thereof, a surface of the positioning convex particle may be spherical.

[0018] In a further example thereof, the mounting hole may include at least one limiting slide groove. The disassembly and assembly component may include a limiting block that slides within the at least one limiting slide groove. In a variation thereof, the limiting block contacts a side of the at least one limiting slide groove away from the wheel brush.

[0019] In yet a further example thereof, the second mounting part may include a plug-in hole. The second end of the wheel brush may include a second connecting column which may be in plug-in cooperation with the plug-in hole. In a variation thereof, the plug-in hole may include a bearing.

[0020] In still a further exemplary embodiment of the present disclosure, a unidirectional driver for a brush of a pool cleaner having a body may be provided. The unidirectional driver may comprise a drive member rotatably coupled to the body; a first wheel; a second wheel; a driven wheel; and a reversing wheel. The drive member may be coupled with the first and second wheels to drive the first and second wheels in opposite directions. The first wheel may mesh with the driven wheel and the second wheel may be coupled to the driven wheel through the reversing wheel. The brush may be coupled to the driven wheel for rotation in one direction therewith. In a variation thereof, the first wheel may include an inner surface with a first plurality of ratchet teeth. The drive member may include a first engaging member having at least two first ratchet claws that engage unidirectionally with the first plurality of ratchet teeth. In another variation thereof, the drive member may be coaxially connected with the first engaging member. [0021] In a further example thereof, the second wheel may include an inner surface with a second plurality of ratchet teeth. The drive member may include a second engaging member having at least two second ratchet claws that engage unidirectionally with the second plurality of ratchet teeth. In a variation thereof, the drive member may be coaxially connected with the second engaging member.

[0022] In still a further example thereof, the driven wheel may have a first gear section and a second gear section arranged coaxially relative to the first gear section. The first gear section may mesh with the first wheel. The second gear section may mesh with the reversing wheel. In a variation thereof, a diameter of the second gear section may be smaller than a diameter of the first gear section.

[0023] In yet another example thereof, the brush may be coaxially connected with the driven wheel.

[0024] In a further still exemplary embodiment of the present disclosure, a pool cleaner is provided. The pool cleaner may comprise a body; a brush; a coupler; a first mount positioned on the body and including a hole having a side wall forming a mounting gap along an axial direction of the first mount; and a second mount positioned on the body in alignment with the first mount. The coupler may be movably mounted in the hole and may include an arm that slides within the mounting gap. A first end of the brush may be rotatably received by the coupler and a second end of the brush may be rotatably received by the second mount.

[0025] In an example thereof, the first end of the brush may include a first connecting column that may be received by a sleeve hole of the coupler. In a variation thereof, the sleeve hole may include a sleeve that receives the first connecting column. In another variation thereof, a diameter of the first connecting column may be smaller than a diameter of the mounting gap and extends into the hole. In yet another variation thereof, the second mount may include a plug-in hole. The second end of the brush may include a second connecting column that may be received by the plug-in hole. In yet another variation thereof, the pool cleaner may further comprise a bearing positioned in the plug-in hole. [0026] In another example thereof, the hole may include a flexible arm including a protrusion. The coupler may include at least one positioning groove that engages the protrusion. In a variation thereof, a surface of the protrusion may be spherical.

In a further example thereof, the hole may include at least one groove. The coupler may include a limiting block that slides within the at least one groove.

[0027] An objective of the present disclosure may be to provide a pool cleaner with a unidirectional drive structure for a brush wheel, which can ensure that the brush wheel always rotates in a fixed direction when the pool cleaner moves.

[0028] To achieve the above objective, a technical solution of the present disclosure is as follows: a unidirectional drive structure for a brush wheel of a pool cleaner includes a unidirectional driver and a brush wheel. The unidirectional driver includes a drive member rotatably installed on the cleaner body of the pool cleaner, a first driving wheel, a second driving wheel, a driven wheel, and a reversing wheel. The drive member is unidirectionally coupled with the first and second driving wheels, which have opposite unidirectional rotation directions. The first driving wheel meshes with the driven wheel, and the second driving wheel is connected to the driven wheel through the reversing wheel, which meshes with both the second driving wheel and the driven wheel. The brush wheel is connected to the driven wheel and rotates synchronously with it.

[0029] The first driving wheel has a set of first unidirectional ratchet teeth on its inner side. The drive member is equipped with a first unidirectional engaging member, which has at least two first unidirectional ratchet claws that engage unidirectionally with the first unidirectional ratchet teeth. The drive member is coaxially connected with the first unidirectional engaging member. The second driving wheel has a set of second unidirectional ratchet teeth on its inner side. The drive member is equipped with a second unidirectional engaging member, which has at least two second unidirectional ratchet claws that engage unidirectionally with the second unidirectional ratchet teeth. The drive member is coaxially connected with the second unidirectional engaging member.

[0030] The driven wheel has a first gear section and a second gear section coaxially arranged. The first gear section meshes with the first driving wheel, and the second gear section meshes with the reversing wheel. The diameter of the second gear section is smaller than that of the first gear section. The brush wheel is coaxially connected with the driven wheel.

[0031] A pool cleaner has at least one unidirectional drive structure for a brush wheel as described above. The pool cleaner has two unidirectional drive structures for brush wheels, with the brush wheels of the two structures located on opposite sides of the cleaner body of the pool cleaner. The pool cleaner has two drive motors, each driving the drive member of one of the unidirectional drive structures for the brush wheels. The pool cleaner has two suction inlets, each adjacent to one of the brush wheels of the unidirectional drive structures. The bristles of the brush wheels of the two unidirectional drive structures touch the edges of the two suction inlets respectively. [0032] When the drive member rotates in the forward direction, it drives the first driving wheel to rotate in the forward direction without driving the second driving wheel. Consequently, the first driving wheel drives the driven wheel to rotate in the forward direction, which in turn drives the brush wheel to rotate in the forward direction. When the drive member rotates in the reverse direction, it does not drive the first driving wheel but drives the second driving wheel to rotate in the reverse direction. Subsequently, the second driving wheel drives the driven wheel to rotate in the forward direction through the reversing wheel, and the driven wheel still drives the brush wheel to rotate in the forward direction. As a result, the unidirectional drive structure of the brush wheel can ensure that the brush wheel always rotates in one direction. This allows the brush wheel to continuously push the dirt towards the suction inlet, thereby improving the cleaning effect.

[0033] Another objective of the present disclosure is to provide a wheel brush mounting structure for a pool cleaner that makes it easy to replace the wheel brush. To achieve the above objective, the present disclosure provides: a wheel brush mounting structure for a pool cleaner including a wheel brush, a disassembly and assembly component, and a first mounting part and a second mounting part set on the cleaner body of the pool cleaner. The first mounting part and the second mounting part are set relatively. The first mounting part has a mounting hole, and the side wall of the mounting hole is provided with a mounting gap along the axial direction of the first mounting part. The disassembly and assembly component is movably mounted in the mounting hole and is in active positioning cooperation with the first mounting part. The disassembly and assembly component is provided with a disassembly and assembly block that slides with the mounting gap. The disassembly and assembly component is in plug-in cooperation with the first end of the wheel brush, and the wheel brush can rotate relative to the disassembly and assembly component. The second end of the wheel brush is in plug-in cooperation with the second mounting part, and the wheel brush can rotate relative to the second mounting part.

[0034] The first end of the wheel brush is provided with a first connecting column, and the disassembly and assembly component is provided with a sleeve hole for setting the first connecting column. The sleeve hole is provided with a sleeve for setting the first connecting column. The diameter of the first connecting column is smaller than that of the mounting gap, and the first connecting column extends into the mounting hole. The mounting hole of the first mounting part is provided with a positioning spring sheet, which is provided with a positioning convex particle. The disassembly and assembly component is provided with at least one positioning groove that can be actively engaged with the positioning convex particle. The surface of the positioning convex particle is spherical.

[0035] The mounting hole is provided with at least one limiting slide groove, and the disassembly and assembly component is provided with a limiting block that slides with the limiting slide groove. The limiting block is actively in contact with the side of the limiting slide groove away from the wheel brush. The second mounting part is provided with a plug-in hole. The second end of the wheel brush is provided with a second connecting column, which is in plug-in cooperation with the plug-in hole. The plug-in hole is provided with a bearing.

[0036] With the above solution, when installing the wheel brush, first, the second end of the wheel brush is plugged into the second mounting part, and then the first end of the wheel brush is aligned with the mounting hole of the first mounting part. Next, the disassembly and assembly component is moved to be plugged into the first end of the wheel brush. At this time, the disassembly and assembly component is in positioning cooperation with the first mounting part to ensure that the wheel brush will not fall off. When disassembling the wheel brush, first, the disassembly and assembly component is moved to release the plug-in cooperation with the first end of the wheel brush. Then, the wheel brush is moved to release the plug-in of the second end of the wheel brush with the second mounting part, and the wheel brush is taken off. As can be seen from the above, the wheel brush of the present disclosure is very convenient to disassemble and assemble, which facilitates the replacement of the wheel brush.

BRIEF DESCRIPTION OF THE DRAWINGS:

[0037] The above mentioned and other features of the present disclosure, and the manner of attaining them, will become more apparent and the disclosure itself will be better understood by reference to the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

[0038] FIG. 1 is a structural diagram of a pool cleaner according to one embodiment of the present disclosure;

[0039] FIG. 2 is an exploded view of the pool cleaner of FIG. 1 ;

[0040] FIG. 3 is an enlarged view of area a in FIG. 2;

[0041] FIG. 4 is a bottom view of the pool cleaner of FIG. 1 ;

[0042] FIG. 5 is a sectional view along line b1-b1 in FIG. 4;

[0043] FIG. 6 is a sectional view along line b2-b2 in FIG. 4;

[0044] FIG. 7 is a sectional view along line b3-b3 in FIG. 4;

[0045] FIG. 8 is a sectional view of the pool cleaner of FIG. 1 ;

[0046] FIG. 9 is another sectional view of the pool cleaner of FIG. 1 ;

[0047] FIG. 10 is another sectional view of the pool cleaner of FIG. 1 ;

[0048] FIG. 11 is a structural view of a pool cleaner according to an embodiment of the present disclosure;

[0049] FIG. 12 is an exploded view of the pool cleaner of FIG. 11 ;

[0050] FIG. 13 is a sectional view of the pool cleaner of FIG. 11 ;

[0051] FIG. 14 is a partial structural view of the cleaner body of the pool cleaner of FIG. 11 ;

[0052] FIG. 15 is a structural view of the disassembly and assembly component of the pool cleaner of FIG. 11 ; and [0053] FIG. 16 is another structural view of the disassembly and assembly component of the pool cleaner of FIG. 11 .

DESCRIPTION OF EMBODIMENTS OF THE DISCLOSURE:

[0054] Referring now to FIGS. 1 to 10, the present disclosure provides a pool cleaner, which has at least one unidirectional drive structure for a brush wheel. The unidirectional drive structure includes a unidirectional driver 1 and a brush wheel 2. As best shown in FIG. 3, the unidirectional driver 1 includes a drive member 11 rotatably installed on the cleaner body 4 of the pool cleaner, a first driving wheel 12, a second driving wheel 13, a driven wheel 14, and a reversing wheel 15. The drive member 11 is coupled with the power source (e.g. , a motor 3) of the pool cleaner for driving the pool cleaner to move. The drive member 11 is unidirectionally coupled with the first and second driving wheels 12 and 13, which have opposite unidirectional rotation directions. The first driving wheel 12 meshes with the driven wheel 14, and the second driving wheel 13 is connected to the driven wheel 14 through the reversing wheel 15, which meshes with both the second driving wheel 13 and the driven wheel 14. The brush wheel 2 is connected to the driven wheel 14 and rotates synchronously with it.

[0055] When the drive member 11 rotates in the forward direction, it drives the first driving wheel 12 to rotate in the forward direction without driving the second driving wheel 13. Consequently, the first driving wheel 12 drives the driven wheel 14 to rotate in the forward direction, which in turn drives the brush wheel 2 to rotate in the forward direction. When the drive member 11 rotates in the reverse direction, it does not drive the first driving wheel 12 but drives the second driving wheel 13 to rotate in the reverse direction. Subsequently, the second driving wheel 13 drives the driven wheel 14 to rotate in the forward direction through the reversing wheel 15, and the driven wheel 14 still drives the brush wheel 2 to rotate in the forward direction. As a result, the unidirectional drive structure of the brush wheel 2 can ensure that the brush wheel 2 always rotates in one direction.

[0056] In an embodiment of the present disclosure, the pool cleaner has two unidirectional drive structures for brush wheels, with the brush wheels 2 of the two structures located on opposite sides of the cleaner body 4 of the pool cleaner, which can improve the cleaning efficiency of the pool. The pool cleaner has two drive motors 3 (FIG. 10), each driving the drive member 11 of one of the unidirectional drive structures for the brush wheels 2. The two drive motors 3 can be coupled with the drive members 11 of the two unidirectional drive structures through a gear transmission mechanism 5 (FIGS. 5 and 8). The pool cleaner has two suction inlets 41 (FIG. 4), each adjacent to one of the brush wheels 2 of the unidirectional drive structures, which can improve the collection efficiency of dirt. The bristles 21 of the brush wheels 2 of the two unidirectional drive structures touch the edges of the two suction inlets 41 respectively, which can effectively remove the dirt attached to the bristles 21 of the brush wheels 2.

[0057] In an embodiment of the present disclosure, the first driving wheel 12 has a set of first unidirectional ratchet teeth 121 (FIG. 7) on its inner side, and the second driving wheel 13 has a set of second unidirectional ratchet teeth 131 (FIG. 6) on its inner side. The drive member 11 is equipped with a first unidirectional engaging member 16 and a second unidirectional engaging member 17, which are coaxially connected with the drive member 11 (FIG. 3). The first unidirectional engaging member 16 has at least two first unidirectional ratchet claws 161 (FIG. 7) that engage unidirectionally with the first unidirectional ratchet teeth 121 , allowing the drive member 11 to be unidirectionally coupled with the first driving wheel 12. The second unidirectional engaging member 17 has at least two second unidirectional ratchet claws 171 (FIG. 6) that engage unidirectionally with the second unidirectional ratchet teeth 131 , allowing the drive member 11 to be unidirectionally coupled with the second driving wheel 13. The driven wheel 14 has a first gear section 141 and a second gear section 142 coaxially arranged (FIG. 3). The second gear section 142 has a smaller diameter than the first gear section 141 . The first gear section 141 meshes with the first driving wheel 12, and the second gear section 142 meshes with the reversing wheel 15. This arrangement facilitates the installation of the reversing wheel 15. Additionally, the present disclosure can adjust the gear ratio between the first driving wheel 12 and the driven wheel 14, as well as the gear ratio between the reversing wheel 15 and the driven wheel 14, so that the rotation speed of the brush wheel 2 is lower when its rotation direction hinders the movement of the pool cleaner than when it does not hinder the movement of the pool cleaner. This reduces the hindrance of the brush wheel 2 to the movement of the pool cleaner.

[0058] In the embodiment of the present disclosure, the brush wheel 2 can be coaxially connected with the driven wheel 14, allowing the driven wheel 14 to directly drive the brush wheel 2 to rotate synchronously. The brush wheel 2 can be detachably mounted on the cleaner body 4 of the pool cleaner, so that it can be replaced when worn out as is further described below.

[0059] Referring now to FIGS. 11 to 16, the present disclosure provides a wheel brush mounting structure for a pool cleaner, which includes a wheel brush 2, a coupler or disassembly and assembly component A3, and a first mount or first mounting part A11 and a second mount or second mounting part A12 set on the cleaner body 4 of the pool cleaner. The first mounting part A11 and the second mounting part A12 are set relatively (i.e. , aligned with one another). The first mounting part A11 has a mounting hole 111 (FIG. 12), and the side wall of the mounting hole 111 is provided with a mounting gap 1111 (FIG. 13) along the axial direction of the first mounting part A11 . The disassembly and assembly component A3 is movably mounted in the mounting hole 111 and is in active positioning cooperation with the first mounting part A11 . The disassembly and assembly component A3 is provided with an arm or disassembly and assembly block 31 that slides with the mounting gap 1111. The disassembly and assembly component A3 is in plug-in cooperation with the first end of the wheel brush 2, and the wheel brush 2 can rotate relative to the disassembly and assembly component A3. The second end of the wheel brush 2 is in plug-in cooperation with the second mounting part A12, and the wheel brush 2 can rotate relative to the second mounting part A12.

[0060] When installing the wheel brush 2 in the cleaner body 4, first, the second end of the wheel brush 2 is plugged into the second mounting part A12. Then, the first end of the wheel brush 2 is aligned with the mounting hole 111 of the first mounting part A11 . Next, the disassembly and assembly component A3 is moved to be plugged into the first end of the wheel brush 2. At this time, the disassembly and assembly component A3 is in positioning cooperation with the first mounting part A11 to ensure that the wheel brush 2 will not fall off. When disassembling the wheel brush 2 from the cleaner body 4, first, the disassembly and assembly component A3 is moved to release the plug-in cooperation with the first end of the wheel brush 2. Then, the wheel brush 2 is moved to release the plug-in of the second end of the wheel brush 2 with the second mounting part A12, and the wheel brush 2 is taken off. As can be seen from the above, the wheel brush 2 of the present disclosure is very convenient to disassemble and assemble, which facilitates the replacement of the wheel brush 2.

[0061] In the embodiment of the present utility model, the first end of the wheel brush 2 is provided with a first connecting column A21 (FIGS. 12 and 13), and the disassembly and assembly component A3 is provided with a sleeve hole 32 for setting the first connecting column A21 to plug the first end of the wheel brush 2 into the disassembly and assembly component A3. The sleeve hole 32 is provided with a sleeve A4 for setting the first connecting column A21 to ensure the smooth rotation of the wheel brush 2. The diameter of the first connecting column A21 can be smaller than that of the mounting gap 1111 , and the first connecting column A21 extends into the mounting hole 111. This setting can make the structure of the pool cleaner more compact. When disassembling and assembling the wheel brush 2, the first connecting column A21 of the wheel brush 2 enters and exits the mounting hole 111 through the mounting gap 1111.

[0062] In an embodiment of the present disclosure, the mounting hole 111 of the first mounting part A11 is provided with a flexible arm or positioning spring sheet 1112 (FIGS. 13 and 14), which is provided with a protrusion or positioning convex particle 11121. The disassembly and assembly component A3 is provided with at least one positioning groove 33 that can be actively engaged with the positioning convex particle 11121 to realize the active positioning cooperation between the disassembly and assembly component A3 and the first mounting part A11 . The surface of the positioning convex particle 11121 may be spherical, so that when the disassembly and assembly component A3 is moved, it can conveniently drive the positioning groove 33 to release the engagement with the positioning convex particle 11121.

[0063] In an embodiment of the present disclosure, the mounting hole 111 of the first mounting part A11 is provided with at least one limiting slide groove 1113 (FIG. 14), and the disassembly and assembly component A3 is provided with a limiting block 34 (FIGS. 15 and 16) that slides with the limiting slide groove 1113. This can improve the stability of the disassembly and assembly component A3 when it is moved. The limiting block 34 is actively in contact with the side of the limiting slide groove 1113 away from the wheel brush 2 to prevent the disassembly and assembly component A3 from falling out.

[0064] In an embodiment of the present disclosure, the second mounting part A12 is provided with a plug-in hole A121 (FIG. 14). The second end of the wheel brush 2 is provided with a second connecting column A22 (FIGS. 12 and 13), which is in plugin cooperation with the plug-in hole A121. The plug-in hole A121 is provided with a bearing A5 to ensure the smooth rotation of the wheel brush 2.

[0065] The following Examples provide non-limiting embodiments of the present disclosure.

[0066] Example 1 . A unidirectional drive structure for a brush wheel of a pool cleaner having a cleaner body is provided. The unidirectional drive structure comprising a unidirectional driver. The unidirectional driver including a drive member rotatably coupled to the cleaner body; a first driving wheel; a second driving wheel; a driven wheel; and a reversing wheel. The drive member is unidirectionally coupled with the first and second driving wheels, which rotate in opposite unidirectional directions. The first driving wheel meshes with the driven wheel. The second driving wheel is coupled to the driven wheel through the reversing wheel. The reversing wheel meshes with both the second driving wheel and the driven wheel. The brush wheel is coupled to the driven wheel and rotates synchronously the driven wheel.

[0067] Example 2. The unidirectional drive structure of Example 1 , wherein the first driving wheel has a set of first unidirectional ratchet teeth on an inner side of the first driving wheel. The drive member includes a first unidirectional engaging member which has at least two first unidirectional ratchet claws that engage unidirectionally with the set of first unidirectional ratchet teeth.

[0068] Example 3. The unidirectional drive structure of Example 2, wherein the drive member is coaxially connected with the first unidirectional engaging member. [0069] Example 4. The unidirectional drive structure of Example 1 , wherein the second driving wheel has a set of second unidirectional ratchet teeth on an inner side of the second driving wheel. The drive member includes a second unidirectional engaging member which has at least two second unidirectional ratchet claws that engage unidirectionally with the set of second unidirectional ratchet teeth.

[0070] Example 5. The unidirectional drive structure of Example 4, wherein the drive member is coaxially connected with the second unidirectional engaging member. [0071] Example 6. The unidirectional drive structure of Example 1 , wherein the driven wheel has a first gear section and a second gear section arranged coaxially relative to the first gear section. The first gear section meshes with the first driving wheel. The second gear section meshes with the reversing wheel.

[0072] Example 7. The unidirectional drive structure of Example 6, wherein a diameter of the second gear section is smaller than a diameter of the first gear section. [0073] Example 8. The unidirectional drive structure of Example 1 , wherein the brush wheel is coaxially connected with the driven wheel.

[0074] Example 9. A pool cleaner is provided. The pool cleaner comprising a first unidirectional drive structure for a first brush wheel of the pool cleaner. The first unidirectional drive structure comprising a unidirectional driver. The unidirectional driver including a drive member rotatably coupled to a cleaner body of the pool cleaner; a first driving wheel; a second driving wheel; a driven wheel; and a reversing wheel. The drive member is unidirectionally coupled with the first and second driving wheels, which rotate in opposite unidirectional directions. The first driving wheel meshes with the driven wheel. The second driving wheel is coupled to the driven wheel through the reversing wheel which meshes with both the second driving wheel and the driven wheel. The first brush wheel is coupled to the driven wheel and rotates synchronously the driven wheel. [0075] Example 10. The pool cleaner of Example 9, further comprising a second unidirectional drive structure and a second brush wheel. The first brush wheel and the second brush wheel being located on opposite sides of the cleaner body of the pool cleaner.

[0076] Example 11 . The pool cleaner of Example 10, further comprising two drive motors. Each drive motor driving a drive member of one of the first and second unidirectional drive structures for the first and second brush wheels. [0077] Example 12. The pool cleaner of Example 10, wherein the cleaner body includes two suction inlets. Each suction inlet being adjacent to one of the first and second brush wheels of the first and second unidirectional drive structures.

[0078] Example 13. The pool cleaner of Example 12, wherein the first brush wheel includes first bristles and the second brush wheel includes second bristles. The first bristles touch an edge of one of the two suction inlets and the second bristles touch an edge of the other of the two suction inlets.

[0079] Example 14. A wheel brush mounting structure for a pool cleaner having a cleaner body is provided. The wheel brush mounting structure may comprise a wheel brush; a disassembly and assembly component; and a first mounting part and a second mounting part set on the cleaner body. The first mounting part and the second mounting part are aligned with one another. The first mounting part including a mounting hole having a side wall. The side wall of the mounting hole including a mounting gap along an axial direction of the first mounting part. The disassembly and assembly component is movably mounted in the mounting hole and cooperates with the first mounting part. The disassembly and assembly component including a disassembly and assembly block that slides within the mounting gap. The disassembly and assembly component is in plug-in cooperation with a first end of the wheel brush. The wheel brush can rotate relative to the disassembly and assembly component. A second end of the wheel brush is in plug-in cooperation with the second mounting part. The wheel brush can rotate relative to the second mounting part.

[0080] Example 15. The wheel brush mounting structure of Example 14, wherein the first end of the wheel brush includes a first connecting column. The disassembly and assembly component includes a sleeve hole for receiving the first connecting column.

[0081] Example 16. The wheel brush mounting structure of Example 15, wherein the sleeve hole includes a sleeve receiving the first connecting column.

[0082] Example 17. The wheel brush mounting structure of Example 15, wherein a diameter of the first connecting column is smaller than a diameter of the mounting gap. The first connecting column extends into the mounting hole. [0083] Example 18. The wheel brush mounting structure of Example 14, wherein the mounting hole of the first mounting part includes a positioning spring sheet which includes a positioning convex particle. The disassembly and assembly component including at least one positioning groove that engages the positioning convex particle. [0084] Example 19. The wheel brush mounting structure of Example 18, wherein a surface of the positioning convex particle is spherical.

[0085] Example 20. The wheel brush mounting structure of Example 14, wherein the mounting hole includes at least one limiting slide groove. The disassembly and assembly component includes a limiting block that slides within the at least one limiting slide groove.

[0086] Example 21 . The wheel brush mounting structure of Example 20, wherein the limiting block contacts a side of the at least one limiting slide groove away from the wheel brush.

[0087] Example 22. The wheel brush mounting structure of Example 14, wherein the second mounting part includes a plug-in hole. The second end of the wheel brush includes a second connecting column which is in plug-in cooperation with the plug-in hole.

[0088] Example 23. The wheel brush mounting structure of Example 22, wherein the plug-in hole includes a bearing.

[0089] Example 24. A unidirectional driver for a brush of a pool cleaner having a body is provided. The unidirectional driver comprising a drive member rotatably coupled to the body; a first wheel; a second wheel; a driven wheel; and a reversing wheel. The drive member is coupled with the first and second wheels to drive the first and second wheels in opposite directions. The first wheel meshes with the driven wheel and the second wheel is coupled to the driven wheel through the reversing wheel. The brush is coupled to the driven wheel for rotation in one direction therewith.

[0090] Example 25. The unidirectional driver of Example 24, wherein the first wheel includes an inner surface with a first plurality of ratchet teeth. The drive member includes a first engaging member having at least two first ratchet claws that engage unidirectionally with the first plurality of ratchet teeth. [0091] Example 26. The unidirectional driver of Example 25, wherein the drive member is coaxially connected with the first engaging member.

[0092] Example 27. The unidirectional driver of Example 24, wherein the second wheel includes an inner surface with a second plurality of ratchet teeth. The drive member includes a second engaging member having at least two second ratchet claws that engage unidirectionally with the second plurality of ratchet teeth.

[0093] Example 28. The unidirectional driver of Example 27, wherein the drive member is coaxially connected with the second engaging member.

[0094] Example 29. The unidirectional driver of Example 24, wherein the driven wheel has a first gear section and a second gear section arranged coaxially relative to the first gear section. The first gear section meshes with the first wheel. The second gear section meshes with the reversing wheel.

[0095] Example 30. The unidirectional driver of Example 29, wherein a diameter of the second gear section is smaller than a diameter of the first gear section.

[0096] Example 31 . The unidirectional driver of Example 24, wherein the brush is coaxially connected with the driven wheel.

[0097] Example 32. A pool cleaner is provided. The pool cleaner comprising a body; a brush; a coupler; a first mount positioned on the body and including a hole having a side wall forming a mounting gap along an axial direction of the first mount; and a second mount positioned on the body in alignment with the first mount. The coupler is movably mounted in the hole and includes an arm that slides within the mounting gap. A first end of the brush is rotatably received by the coupler and a second end of the brush is rotatably received by the second mount.

[0098] Example 33. The pool cleaner of Example 32, wherein the first end of the brush includes a first connecting column that is received by a sleeve hole of the coupler. [0099] Example 34. The pool cleaner of Example 33, wherein the sleeve hole includes a sleeve that receives the first connecting column.

[00100] Example 35. The pool cleaner of Example 33, wherein a diameter of the first connecting column is smaller than a diameter of the mounting gap and extends into the hole. [00101] Example 36. The pool cleaner of Example 32, wherein the hole includes a flexible arm including a protrusion. The coupler including at least one positioning groove that engages the protrusion.

[00102] Example 37. The pool cleaner of Example 36, wherein a surface of the protrusion is spherical.

[00103] Example 38. The pool cleaner of Example 32, wherein the hole includes at least one groove. The coupler includes a limiting block that slides within the at least one groove.

[00104] Example 39. The pool cleaner of Example 33, wherein the second mount includes a plug-in hole. The second end of the brush includes a second connecting column that is received by the plug-in hole.

[00105] Example 40. The pool cleaner of Example 39, further comprising a bearing positioned in the plug-in hole.

[00106] The above embodiments and drawings do not limit the product form and style of the present disclosure. Any appropriate changes or modifications made by persons of skill in the art shall be deemed not to be outside the scope of the patent of the present disclosure.

Claims

CLAIMS What is claimed is:

1 . A unidirectional drive structure for a brush wheel of a pool cleaner having a cleaner body, comprising: a unidirectional driver including: a drive member rotatably coupled to the cleaner body; a first driving wheel; a second driving wheel; a driven wheel; and a reversing wheel; wherein the drive member is unidirectionally coupled with the first and second driving wheels, which rotate in opposite unidirectional directions; wherein the first driving wheel meshes with the driven wheel and the second driving wheel is coupled to the driven wheel through the reversing wheel, which meshes with both the second driving wheel and the driven wheel; and wherein the brush wheel is coupled to the driven wheel and rotates synchronously the driven wheel.

2. The unidirectional drive structure of claim 1 , wherein the first driving wheel has a set of first unidirectional ratchet teeth on an inner side of the first driving wheel and the drive member includes a first unidirectional engaging member, which has at least two first unidirectional ratchet claws that engage unidirectionally with the set of first unidirectional ratchet teeth.

3. The unidirectional drive structure of claim 2, wherein the drive member is coaxially connected with the first unidirectional engaging member.

4. The unidirectional drive structure of claim 1 , wherein the second driving wheel has a set of second unidirectional ratchet teeth on an inner side of the second driving wheel and the drive member includes a second unidirectional engaging member, which has at least two second unidirectional ratchet claws that engage unidirectionally with the set of second unidirectional ratchet teeth.

5. The unidirectional drive structure of claim 4, wherein the drive member is coaxially connected with the second unidirectional engaging member.

6. The unidirectional drive structure of claim 1 , wherein the driven wheel has a first gear section and a second gear section arranged coaxially relative to the first gear section, the first gear section meshes with the first driving wheel, and the second gear section meshes with the reversing wheel.

7. The unidirectional drive structure of claim 6, wherein a diameter of the second gear section is smaller than a diameter of the first gear section.

8. The unidirectional drive structure of claim 1 , wherein the brush wheel is coaxially connected with the driven wheel.

9. A pool cleaner, comprising: a first unidirectional drive structure for a first brush wheel of the pool cleaner, comprising: a unidirectional driver including: a drive member rotatably coupled to a cleaner body of the pool cleaner; a first driving wheel; a second driving wheel; a driven wheel; and a reversing wheel; wherein the drive member is unidirectionally coupled with the first and second driving wheels, which rotate in opposite unidirectional directions; wherein the first driving wheel meshes with the driven wheel and the second driving wheel is coupled to the driven wheel through the reversing wheel, which meshes with both the second driving wheel and the driven wheel; and wherein the first brush wheel is coupled to the driven wheel and rotates synchronously the driven wheel.

10. The pool cleaner of claim 9, further comprising a second unidirectional drive structure and a second brush wheel, the first brush wheel and the second brush wheel being located on opposite sides of the cleaner body of the pool cleaner.

11 . The pool cleaner of claim 10, further comprising two drive motors, each drive motor driving a drive member of one of the first and second unidirectional drive structures for the first and second brush wheels.

12. The pool cleaner of claim 10, wherein the cleaner body includes two suction inlets, each suction inlet being adjacent to one of the first and second brush wheels of the first and second unidirectional drive structures.

13. The pool cleaner of claim 12, wherein the first brush wheel includes first bristles and the second brush wheel includes second bristles, the first bristles touch an edge of one of the two suction inlets and the second bristles touch an edge of the other of the two suction inlets.

14. A wheel brush mounting structure for a pool cleaner having a cleaner body, comprising: a wheel brush; a disassembly and assembly component; and a first mounting part and a second mounting part set on the cleaner body; wherein the first mounting part and the second mounting part are aligned with one another; wherein the first mounting part including a mounting hole having a side wall, the side wall of the mounting hole including a mounting gap along an axial direction of the first mounting part; wherein the disassembly and assembly component is movably mounted in the mounting hole and cooperates with the first mounting part, the disassembly and assembly component including a disassembly and assembly block that slides within the mounting gap; wherein the disassembly and assembly component is in plug-in cooperation with a first end of the wheel brush, and the wheel brush can rotate relative to the disassembly and assembly component; and wherein a second end of the wheel brush is in plug-in cooperation with the second mounting part, and the wheel brush can rotate relative to the second mounting part.

15. The wheel brush mounting structure of claim 14, wherein the first end of the wheel brush includes a first connecting column, and the disassembly and assembly component includes a sleeve hole for receiving the first connecting column.

16. The wheel brush mounting structure of claim 15, wherein the sleeve hole includes a sleeve receiving the first connecting column.

17. The wheel brush mounting structure of claim 15, wherein a diameter of the first connecting column is smaller than a diameter of the mounting gap, and the first connecting column extends into the mounting hole.

18. The wheel brush mounting structure of claim 14, wherein the mounting hole of the first mounting part includes a positioning spring sheet, which includes a positioning convex particle, the disassembly and assembly component including at least one positioning groove that engages the positioning convex particle.

19. The wheel brush mounting structure of claim 18, wherein a surface of the positioning convex particle is spherical.

20. The wheel brush mounting structure of claim 14, wherein the mounting hole includes at least one limiting slide groove, and the disassembly and assembly component includes a limiting block that slides within the at least one limiting slide groove.

21 . The wheel brush mounting structure of claim 20, wherein the limiting block contacts a side of the at least one limiting slide groove away from the wheel brush.

22. The wheel brush mounting structure of claim 14, wherein the second mounting part includes a plug-in hole, and the second end of the wheel brush includes a second connecting column, which is in plug-in cooperation with the plug-in hole.

23. The wheel brush mounting structure of claim 22, wherein the plug-in hole includes a bearing.

24. A unidirectional driver for a brush of a pool cleaner having a body, comprising: a drive member rotatably coupled to the body; a first wheel; a second wheel; a driven wheel; and a reversing wheel; wherein the drive member is coupled with the first and second wheels to drive the first and second wheels in opposite directions; wherein the first wheel meshes with the driven wheel and the second wheel is coupled to the driven wheel through the reversing wheel; and wherein the brush is coupled to the driven wheel for rotation in one direction therewith.

25. The unidirectional driver of claim 24, wherein the first wheel includes an inner surface with a first plurality of ratchet teeth and the drive member includes a first engaging member having at least two first ratchet claws that engage unidirectionally with the first plurality of ratchet teeth.

26. The unidirectional driver of claim 25, wherein the drive member is coaxially connected with the first engaging member.

27. The unidirectional driver of claim 24, wherein the second wheel includes an inner surface with a second plurality of ratchet teeth and the drive member includes a second engaging member having at least two second ratchet claws that engage unidirectionally with the second plurality of ratchet teeth.

28. The unidirectional driver of claim 27, wherein the drive member is coaxially connected with the second engaging member.

29. The unidirectional driver of claim 24, wherein the driven wheel has a first gear section and a second gear section arranged coaxially relative to the first gear section, the first gear section meshes with the first wheel, and the second gear section meshes with the reversing wheel.

30. The unidirectional driver of claim 29, wherein a diameter of the second gear section is smaller than a diameter of the first gear section.

31 . The unidirectional driver of claim 24, wherein the brush is coaxially connected with the driven wheel.

32. A pool cleaner, comprising: a body; a brush; a coupler; and a first mount positioned on the body and including a hole having a side wall forming a mounting gap along an axial direction of the first mount; and a second mount positioned on the body in alignment with the first mount; wherein the coupler is movably mounted in the hole and includes an arm that slides within the mounting gap; and wherein a first end of the brush is rotatably received by the coupler and a second end of the brush is rotatably received by the second mount.

33. The pool cleaner of claim 32, wherein the first end of the brush includes a first connecting column that is received by a sleeve hole of the coupler.

34. The pool cleaner of claim 33, wherein the sleeve hole includes a sleeve that receives the first connecting column.

35. The pool cleaner of claim 33, wherein a diameter of the first connecting column is smaller than a diameter of the mounting gap and extends into the hole.

36. The pool cleaner of claim 32, wherein the hole includes a flexible arm including a protrusion, the coupler including at least one positioning groove that engages the protrusion.

37. The pool cleaner of claim 36, wherein a surface of the protrusion is spherical.

38. The pool cleaner of claim 32, wherein the hole includes at least one groove and the coupler includes a limiting block that slides within the at least one groove.

39. The pool cleaner of claim 33, wherein the second mount includes a plug-in hole and the second end of the brush includes a second connecting column that is received by the plug-in hole.

40. The pool cleaner of claim 39, further comprising a bearing positioned in the plugin hole.