Swimming pool cleaning machine and water tank assembly thereof

By designing the water tank and casing of the pool cleaning machine to be detachably connected, and by incorporating drainage components and a filtration device, the problem of difficulty in disassembling the integrated water tank and casing in existing technologies has been solved. This enables rapid disassembly and cleaning of the equipment, improves its stability and cleaning capabilities, and extends its service life.

CN223767237UActive Publication Date: 2026-01-06CHANGZHOU CLEANSPEED TOOLS CO LTD
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Patent Information

Application Number
CN202520090073.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-01-06
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

The existing pool cleaning machine integrates the water tank and the casing into one piece, which is difficult to disassemble and is easily damaged, affecting the suction power and working efficiency of the cleaning machine, and is also inconvenient to replace.

Method used

The pool cleaning machine features a detachable connection between the water tank and the casing, and includes a drainage assembly and a filtration device. The casing and water tank are connected by a sealing ring, and the base is funnel-shaped to increase stability. The drainage structure uses elastic caps and oil seals to prevent water from entering. The power module and drive unit are housed in a sealed cavity, and the drive motor output shaft is equipped with an oil seal to prevent water from entering.

Benefits of technology

It enables quick disassembly and cleaning of the water tank, reduces the cost of replacing parts, improves the stability and cleaning ability of the equipment, prevents water accumulation in the water tank from affecting suction, and extends the service life of the equipment.

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Abstract

The water tank assembly of the swimming pool cleaning machine comprises a machine shell and a water tank, a water drainage assembly is arranged in the machine shell, a water drainage opening is formed in the side wall of the machine shell, a water inlet is formed in the water tank, a filtering device is arranged in the water tank, and the machine shell is communicated with the water tank. The machine shell is detachably connected with the water tank. The filtering device is arranged in the water tank, the suction force and the working efficiency of the cleaning machine can be affected after long-time use, the machine shell and the water tank are separated into two parts which are detachably connected, the water tank can be conveniently cleaned by disassembling the water tank, or the water tank can be directly replaced, rapid disassembly and assembly of equipment are achieved, and the cost for replacing the parts is reduced.
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Description

Technical Field

[0001] This utility model relates to a swimming pool cleaning machine and its water tank assembly. Background Technology

[0002] A pool cleaning machine is a device specifically designed for cleaning swimming pools. When in operation, the entire device is submerged in water, effectively removing sediment from the bottom of the pool, such as leaves, sand, and sludge, to maintain the cleanliness and hygiene of the pool.

[0003] After a period of operation, pool cleaning machines accumulate a large amount of debris in their water tanks. If not cleaned in time, this will affect the suction power and efficiency of the machine, thus requiring cleaning or replacement of the water tank. Currently, the water tank and casing of existing pool cleaning machines are integrated into a single unit, requiring the entire machine to be disassembled to remove the tank. Furthermore, after disassembly, the machine becomes loose and easily damaged, making disassembly, installation, and replacement inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a swimming pool cleaning machine and its water tank assembly to solve the technical problems mentioned in the background section.

[0005] The technical solution to achieve the purpose of this utility model is: a water tank assembly for a swimming pool cleaning machine, including a housing and a water tank, wherein a drainage assembly is provided in the housing, a drain outlet is provided on the side wall of the housing, a water inlet is provided on the water tank, a filter device is provided in the water tank, and the housing and the water tank are connected; the housing and the water tank are detachably connected.

[0006] Furthermore, the housing includes a base, a side plate, and a drain tank, with the base, side plate, and drain tank forming an installation cavity, and the water tank disposed in the installation cavity; the base is disposed below the water tank, the side plate is disposed on one side of the water tank, and the drain tank is disposed above the water tank; the drain assembly is disposed in the drain tank.

[0007] Furthermore, the base is funnel-shaped in the middle, the bottom surface of the drain tank is inclined, the inclined surface gradually decreases from the side away from the side plate to the side closer to the side plate, and the outer shell of the water tank matches the machine casing.

[0008] Furthermore, it also includes a drainage structure, which is disposed on one side of the housing near the side panel.

[0009] Furthermore, the drainage structure includes pin holes opened on the base and the bottom surface of the water tank, and a drainage cover that passes through both pin holes simultaneously, with a flexible cap provided at one end of the drainage cover.

[0010] Furthermore, a sealing ring is provided at the connection between the casing and the water tank.

[0011] Furthermore, the drainage tank is provided with a partition plate, which divides the drainage tank into a sealed cavity and a drainage cavity from top to bottom. The drainage cavity is provided with a drainage channel, which is arranged opposite to the drainage outlet.

[0012] Furthermore, the drainage assembly includes a power module, a control module, a drive unit, and blades. The power module supplies power to the drive unit, the control module controls the operation of the drive unit, and the blades are located at the output end of the drive unit. A mounting box is provided on the partition plate, and both the power module and the control module are located in the mounting box.

[0013] Furthermore, the driving device is a drive motor; a groove is provided on the partition plate, and one end of the drive motor is fixed in the groove; a retaining ring is fixed below the groove, and the groove and the retaining ring are sealed; both the groove and the retaining ring are provided with through holes for the output shaft of the drive motor to pass through, and an oil seal is provided on the output shaft of the drive motor, which seals the through holes on the retaining ring.

[0014] A swimming pool cleaning machine includes a cleaning module and a water tank assembly of the swimming pool cleaning machine, with a hand handle detachably connected to the machine housing; the cleaning module is provided with a suction pipe, and the machine housing and the suction pipe are rotatably connected.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects:

[0016] (1) The water tank of this utility model is equipped with a filter device. After long-term use, it will affect the suction and working efficiency of the cleaning machine. The machine casing and the water tank are separated into two parts and set as detachable connection. The water tank can be cleaned by disassembling it or the water tank can be replaced directly, realizing quick disassembly and assembly of the equipment and reducing the cost of replacing parts.

[0017] (2) The base of this utility model is funnel-shaped, which can increase the stability of the water tank after it is installed on the machine casing. The bottom surface of the drain tank is sloping, which makes the water tank easier to install and prevents the funnel-shaped part at the bottom from being stuck during installation.

[0018] (3) When installing this utility model, the end of the drain cover with the elastic cap passes through the pin hole on the base and the water tank in sequence. When disassembling, the water in the water tank is drained by removing the drain cover.

[0019] (4) The present invention provides a sealing ring at the connection between the casing and the water tank to prevent water from entering the drain tank from the gap between the casing and the water tank, thus affecting the cleaning ability of the equipment.

[0020] (5) The present invention sets the power module, control module and drive motor in a sealed cavity to prevent water from entering and causing damage to the equipment. A drainage channel is set in the drainage cavity, and the water drawn by the drainage component will be discharged from the drain outlet along the drainage channel.

[0021] (6) The present invention is provided with an oil seal on the output shaft of the drive motor to achieve dynamic sealing between the motor output shaft and the housing, and to prevent water from entering the sealing cavity.

[0022] (7) The casing of this utility model is connected to the suction pipe via a universal hinge, making it convenient for users to operate the hand handle to clean the swimming pool. Attached Figure Description

[0023] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0024] Figure 1 This is a schematic diagram of the structure of the swimming pool cleaning machine of this utility model.

[0025] Figure 2 This is an exploded view of the water tank assembly of this utility model.

[0026] Figure 3 This is a side sectional view of the water tank assembly of this utility model.

[0027] Figure 4 This is a cross-sectional view of the casing of this utility model.

[0028] The labels in the attached diagram are as follows: 1. Housing; 1-1. Base; 1-2. Side plate; 1-3. Drainage tank; 1-3-1. Divider plate; 1-3-2. Sealing cavity; 1-3-3. Drainage cavity; 1-3-3-1. Drainage channel; 2. Water tank; 3. Drainage assembly; 3-1. Power module; 3-2. Control module; 3-3. Drive device; 3-4. Paddle; 4. Drainage port; 5. Inlet; 6. Filter device; 7. Drainage structure; 7-1. Drainage cover; 7-2. Elastic cap; 8. Sealing ring; 9. Retaining ring; 10. Oil seal; 11. Hand handle; 12. Suction pipe. Detailed Implementation

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels 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.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.

[0034] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.

[0035] (Example 1)

[0036] See Figure 2-4 The pool cleaning machine water tank assembly of this embodiment includes a housing 1 and a water tank 2. A drainage assembly 3 is provided in the housing 1, and a drain outlet 4 is provided on the side wall of the housing 1. A water inlet 5 is provided on the water tank 2, and a filter device 6 is provided in the water tank 2. The housing 1 and the water tank 2 are connected in communication; the housing 1 and the water tank 2 are detachably connected. In this embodiment, the filter device 6 is a filter screen.

[0037] Specifically, the housing 1 includes a base 1-1, a side plate 1-2, and a drain tank 1-3. A mounting cavity is formed between the base 1-1, side plate 1-2, and drain tank 1-3. The water tank 2 is placed within this mounting cavity. When the water tank 2 is installed in the mounting cavity, the base 1-1 is located below the water tank 2, the side plate 1-2 is located to one side of the water tank 2, and the drain tank 1-3 is located above the water tank 2. A water inlet 5 is located at the bottom of the water tank 2, and a through hole corresponding to the water inlet 5 is provided on the base 1-1. A through hole is provided on the top surface of the water tank 2, and a through hole is also provided on the bottom surface of the drain tank 1-3. When the equipment is working, water flows through the drain assembly 3 from the water inlet 5 at the bottom into the water tank 2, enters the drain tank 1-3 through the through hole at the top of the water tank 2, and then exits from the drain outlet 4 on the side wall.

[0038] The base 1-1 has a funnel-shaped center, and the bottom surface of the drain tank 1-3 is sloped, gradually decreasing in slope from the side away from the side plate 1-2 to the side closer to the side plate 1-2. The outer shell of the water tank 2 matches the housing 1, meaning the bottom surface of the water tank 2 is also funnel-shaped in the middle, and the top surface of the water tank 2 is sloped. The sides of the water tank 2 and the side plates 1-2 of the housing 1 together form the outer wall of the water tank assembly. Alternatively, a sealing plate can be installed on the opposite side of the side plate 1-2 of the housing 1 to make the overall shape of the water tank assembly more complete and aesthetically pleasing. The funnel-shaped base 1-1 increases the stability of the water tank 2 after it is installed on the housing 1, and the sloped bottom surface of the drain tank 1-3 makes the water tank 2 easier to install, preventing the funnel-shaped part at the bottom from getting stuck during installation.

[0039] It also includes a drainage structure 7, which is located on the side of the housing 1 near the side plate 1-2. The drainage structure 7 includes pin holes formed on the bottom surfaces of the base 1-1 and the water tank 2, and a drain cover 7-1 that passes through both pin holes. One end of the drain cover 7-1 is provided with a flexible cap 7-2. During installation, the end of the drain cover 7-1 with the flexible cap 7-2 passes through the pin holes on the base 1-1 and the water tank 2 in sequence. During disassembly, the water in the water tank 2 is drained by removing the drain cover 7-1.

[0040] Multiple sealing rings 8 are provided at the connection between the casing 1 and the water tank 2 to prevent water from entering the drain tank 1-3 through the gap between the casing 1 and the water tank 2, thus affecting the cleaning ability of the equipment.

[0041] A partition plate 1-3-1 is provided in the drainage tank 1-3. The partition plate 1-3-1 divides the drainage tank 1-3 into a sealed cavity 1-3-2 and a drainage cavity 1-3-3 from top to bottom. A drainage channel 1-3-3-1 is provided in the drainage cavity 1-3-3. The drainage channel 1-3-3-1 is positioned opposite to the drain outlet 4.

[0042] The drainage assembly 3 is installed in the drainage tank 1-3. The drainage assembly 3 includes a power module 3-1, a control module 3-2, a drive device 3-3, and a paddle 3-4. The power module 3-1 supplies power to the drive device 3-3, the control module 3-2 controls the operation of the drive device 3-3, and the paddle 3-4 is installed at the output end of the drive device 3-3. A mounting box is provided on the partition plate 1-3-1, and both the power module 3-1 and the control module 3-2 are installed in the mounting box. In this embodiment, the drive device 3-3 is a drive motor, and the paddle 3-4 is fixed on the output shaft of the drive motor. When the drive motor works, it drives the paddle 3-4 to rotate, and the paddle 3-4 pushes the water flow along the drainage channel 1-3-3-1 to the drain outlet 4. The water continuously enters from the inlet 5 at the bottom of the water tank 2. After being filtered by the filter screen, the clean water enters the drainage chamber 1-3 from the water tank 2, forming a circulation and realizing the water pumping function.

[0043] A groove is provided on the partition plate 1-3-1, and one end of the drive motor is fixed in the groove. A retaining ring 9 is fixed below the groove, and the groove and the retaining ring 9 are sealed. Both the groove and the retaining ring 9 have through holes for the output shaft of the drive motor to pass through. An oil seal 10 is provided on the output shaft of the drive motor, and the oil seal 10 seals the through holes on the retaining ring 9. By providing an oil seal 9 on the output shaft of the drive motor, a dynamic seal is achieved between the motor output shaft and the housing 1, preventing water from entering the sealing cavity 1-3-2.

[0044] This invention separates the housing 1 and the water tank 2 into two parts, which are designed to be detachably connected. By disassembling the water tank 2, it is convenient to clean the water tank 2 or directly replace the water tank 2, so as to achieve quick disassembly and assembly of the equipment and reduce the cost of replacing parts.

[0045] (Example 2)

[0046] A type of pool cleaning machine, see Figure 1 The system includes a cleaning module and a water tank assembly. A hand lever 11 is detachably connected to the housing 1. The top of the housing 1 near the side plates 1-2 has an insertion hole for inserting the hand lever 11. The housing 1 and the hand lever 11 are then fixed with screws. The hand lever 11 can be telescopic to accommodate swimming pools of different heights. The cleaning module is equipped with a suction pipe 12. The housing 1 is connected to the suction pipe 12 via a universal hinge, making it convenient for users to operate the hand lever 11 to clean the swimming pool.

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water tank assembly for a swimming pool cleaning machine, characterised in that: The utility model provides a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

2. A water tank assembly for a pool cleaner according to claim 1, wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

3. A water tank assembly for a swimming pool cleaner as defined in claim 2 wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

4. A water tank assembly for a swimming pool cleaner as defined in claim 3 wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

5. A water tank assembly for a pool cleaner according to claim 4, wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

6. A water tank assembly for a pool cleaner according to claim 1, wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

7. A water tank assembly for a swimming pool cleaner as defined in claim 2 wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

8. A water tank assembly for a pool cleaner according to claim 7, wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

9. A water tank assembly for a pool cleaner according to claim 8, wherein: The utility model discloses a water tank and machine shell detachable connection's water purifier, including machine shell (1) and water tank (2), be provided with drainage assembly (3) in machine shell (1), be equipped with drainage port (4) on the lateral wall of machine shell (1), be equipped with water inlet (5) on water tank (2), be provided with filter device (6) in water tank (2), machine shell (1) with water tank (2) intercommunication, machine shell (1) with water tank (2) detachable connection.

10. A pool cleaning machine characterized by: The water tank assembly comprises a cleaning module and a swimming pool cleaner as claimed in any one of claims 1-9, a handheld rod (11) is detachably connected to the casing (1); a suction pipe (12) is arranged on the cleaning module, and the casing (1) is rotatably connected with the suction pipe (12).