Swimming pool inner wall cleaning robot

Abstract

The utility model discloses a swimming pool inner wall cleaning robot, which belongs to the field of swimming pool inner wall cleaning and comprises a climbing type crawler walking mechanism and a shell arranged on the climbing type crawler walking mechanism, and the climbing type crawler walking mechanism comprises climbing type crawler walking assemblies symmetrically arranged on the left side and the right side of the shell. The climbing type crawler walking assembly comprises driving type rear wheels, driven type front wheels and transmission crawlers wrapped between the driving type rear wheels and the driven type front wheels, the wheel diameter of the driven type front wheels is larger than that of the driving type rear wheels, the two driving type rear wheels located on the left side and the right side of the shell are connected with two driving motors respectively, and the driving motors are fixed to the shell. A cleaning assembly is arranged between the two driven rear wheels located on the left side and the right side of the shell, a water inlet is formed in the position, close to the cleaning assembly, of the bottom end of the shell, a water outlet is formed in the position, facing the inner wall of the swimming pool, of the top end of the shell, and the water inlet and the water outlet are communicated through a detachable filtering assembly. According to the swimming pool inner wall cleaning robot, the inner wall and the side wall of the bottom end of a swimming pool can be cleaned at the same time, cleaning dead corners are avoided, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of swimming pool inner wall cleaning, in particular to a swimming pool inner wall cleaning robot. Background Art

[0002] Swimming pool cleaning is an important task to maintain the water quality and environment of the swimming pool. The existing technology generally removes floating objects (such as leaves, insects, etc.) on the water surface on a daily basis, and regularly uses a pool brush to clean the pool wall and bottom to remove algae and sediments. The above cleaning methods mainly rely on manual work, which increases labor costs.

[0003] To solve the above problems, the prior art has further developed the following cleaning robots:

[0004] CN202310854308.1 discloses a swimming pool cleaning robot system and a method for docking the swimming pool cleaning robot, which includes a swimming pool cleaning robot and a return station. The swimming pool cleaning robot can be put into the water of the swimming pool. The return station is arranged on the wall of the swimming pool. The swimming pool cleaning robot is provided with a sensing and identifying device, a diving device and a cleaning device; wherein the diving device is used to control the swimming pool cleaning robot to float on the water surface of the swimming pool or sink to the bottom of the swimming pool; the cleaning device is used to clean the dirt on the water surface of the swimming pool or the bottom of the swimming pool; the sensing and identifying device is used to identify the position of the return station and generate corresponding position information, and the swimming pool cleaning robot moves to the return station according to the position information. Accordingly, the utility model also discloses a method for docking the swimming pool cleaning robot, which is implemented based on the above-mentioned swimming pool cleaning robot system, and the swimming pool cleaning robot can simultaneously meet the two usage requirements of cleaning the swimming pool water surface and the swimming pool bottom.

[0005] It can be seen that the existing swimming pool cleaning robots have the following defects:

[0006] 1. It can only clean the bottom of the swimming pool, but cannot clean the side walls of the swimming pool at the same time;

[0007] 2. Walking in disorder, prone to sanitary blind spots;

[0008] 3. The external battery needs to be connected to the power supply cable, which limits the robot's movement. Utility Model Content

[0009] In order to solve the above problems, the utility model provides a swimming pool inner wall cleaning robot, which can clean the inner wall and side walls of the bottom of the swimming pool at the same time, avoiding the existence of cleaning dead corners and improving the cleaning effect.

[0010] To achieve the above-mentioned purpose, the utility model provides a swimming pool inner wall cleaning robot, comprising a climbing crawler walking mechanism and a shell arranged on the climbing crawler walking mechanism, the climbing crawler walking mechanism comprising climbing crawler walking components symmetrically arranged on the left and right sides of the shell, the climbing crawler walking components comprising an active rear wheel, a driven front wheel and a transmission crawler wrapped between the active rear wheel and the driven front wheel, the wheel diameter of the driven front wheel is larger than the wheel diameter of the active rear wheel, and the two active rear wheels located on the left and right sides of the shell are respectively connected to two drive motors, and the drive motors are fixed on the shell;

[0011] A cleaning component is arranged between the two driven rear wheels on the left and right sides of the shell, a water inlet is arranged at the bottom of the shell and close to the cleaning component, a water outlet is arranged at the top of the shell and facing the inner wall of the swimming pool, and the water inlet and the water outlet are connected via a detachable filtering component.

[0012] Preferably, two distance sensors are fixed at the front side of the housing and at positions corresponding to the two driven front wheels respectively, and the two distance sensors are located on the same horizontal line;

[0013] A water immersion sensor is also fixed to the bottom end of the rear side of the shell. The water immersion sensor and the two distance sensors are electrically connected to the input end of the controller. The output end of the controller is electrically connected to the two drive motors respectively through the frequency converter.

[0014] Preferably, a propeller is provided in the water outlet, and the propeller is electrically connected to the output end of the water pump, and the output end of the water pump and the controller, so that the cleaning robot can operate at rated power when it is walking normally, and the cleaning robot can be pressed against the inner wall of the swimming pool while pumping water to avoid the cleaning robot from overturning, and the operating power can be reduced when the cleaning robot climbs a slope to reduce the suction between the cleaning robot and the inner wall of the swimming pool.

[0015] Preferably, the water pump, two drive motors, a controller and a frequency converter are integrated inside a protective shell, the protective shell is fixed to the top of the housing, a rechargeable battery is also fixed inside the protective shell, and the rechargeable battery is electrically connected to the water pump, the two drive motors, the controller and the frequency converter respectively;

[0016] The rechargeable battery is also electrically connected to a waterproof charging port embedded in the housing.

[0017] Preferably, the cleaning assembly comprises a drum and a plurality of brush plates evenly fixed to the outer circumference of the drum, and the plurality of brush plates are arranged in parallel;

[0018] A first inner gear ring is provided on the inner circumference side of both ends of the drum, the first inner gear ring is meshed with the first transmission gear, the first transmission gear is coaxially connected with the second transmission gear, and the second transmission gear is meshed with the second transmission gear ring provided on the inner circumference side of the driven front wheel;

[0019] A mounting bearing is arranged between the first transmission gear and the second transmission gear, and the mounting bearing is fixed on the housing via a bearing seat.

[0020] Preferably, the detachable filter assembly comprises a filter chamber disposed inside the housing, a filter screen disposed inside the filter chamber, and a filter cover magnetically attached to the housing, one side of the filter cover being locked with one side of the filter screen via a slide lock, and the other side of the filter cover being rotatably connected with the other side of the filter screen via a hinge;

[0021] The water inlet is aligned with the communication port opened at the bottom end of the filter screen, and a dirt baffle is fixed at the bottom end of the filter screen and around the communication port.

[0022] Preferably, a baffle is fixed at the bottom of the shell and at the position where the half cover is arranged at the water inlet, and the cleaning component, the water inlet and the baffle are arranged in sequence;

[0023] A drain port connected to the detachable filter assembly is provided at the bottom end of the rear side of the housing, and an elastic drain plate is provided on the drain port;

[0024] The elastic drain board and baffle are both made of silicone.

[0025] Preferably, the output shaft of the driving motor is fixedly connected to the axle of the first bevel gear, and the first bevel gear is meshed with the second bevel gear fixed to the inner circumference side of the rear wheel.

[0026] The utility model has the following beneficial effects:

[0027] The bottom inner wall and side wall of the swimming pool can be cleaned at the same time, avoiding the existence of cleaning dead corners and improving the cleaning effect.

[0028] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a swimming pool inner wall cleaning robot of the utility model;

[0030] Figure 2 This is a bottom view of a swimming pool inner wall cleaning robot according to the utility model;

[0031] Figure 3 This is an appearance diagram of a swimming pool inner wall cleaning robot of the utility model;

[0032] Figure 4 This is an assembly diagram of a cleaning component of a swimming pool inner wall cleaning robot according to the utility model;

[0033] Figure 5 This is an exploded view of a cleaning component of a swimming pool inner wall cleaning robot of the utility model;

[0034] Figure 6 The utility model is a filter assembly diagram of a swimming pool inner wall cleaning robot.

[0035] Among them: 1. front wheel; 2. first bevel gear; 3. rear wheel; 4. water pump; 5. filter cover; 6. filter screen; 7. filter chamber; 8. transmission track; 9. brush plate; 10. roller; 11. water inlet; 12. baffle; 13. drain outlet; 14. shell; 15. communication interface; 16. distance sensor; 17. LED light; 18. second transmission gear; 19. first inner gear ring; 20. bearing; 21. second transmission gear; 22. dirt baffle; 23. connecting port. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages disclosed in the embodiments of the utility model clearer, the embodiments of the utility model are further described in detail in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the utility model and are not used to limit the embodiments of the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0037] It should be noted that the terms "include", "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or devices.

[0038] Like reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] A swimming pool inner wall cleaning robot comprises a climbing crawler walking mechanism and a shell 14 arranged on the climbing crawler walking mechanism, the climbing crawler walking mechanism comprises climbing crawler walking components symmetrically arranged on the left and right sides of the shell 14, the climbing crawler walking component comprises an active rear wheel 3, a driven front wheel 1 and a transmission crawler 8 wrapped between the active rear wheel 3 and the driven front wheel 1, the wheel diameter of the driven front wheel 1 is larger than the wheel diameter of the active rear wheel 3, the two active rear wheels 3 located on the left and right sides of the shell 14 are respectively connected to two driving motors, and the driving motors are fixed on the shell 14; a cleaning component is arranged between the two driven rear wheels 3 located on the left and right sides of the shell 14, a water inlet 11 is opened at the bottom end of the shell 14 and close to the cleaning component, a water outlet is arranged at the top end of the shell 14 and facing the inner wall of the swimming pool, the water inlet 11 and the water outlet are connected through a detachable filtering component, and the crawler structure is convenient for coping with various road conditions on the bottom and side walls of the pool.

[0042] In this embodiment, the active rear wheel is smaller than the driven front wheel. A driven front wheel with a large wheel diameter is used to facilitate wall climbing. At the same time, a small wheel diameter active rear wheel is used to increase transmission efficiency, thereby being suitable for wall corners of various angles and being more beautiful overall.

[0043] Specifically, two distance sensors 16 are fixed on the front side of the shell 14 and at positions corresponding to the two driven front wheels 1, and the two distance sensors 16 are located on the same horizontal line; a water immersion sensor is also fixed at the bottom end of the rear side of the shell 14, and the water immersion sensor and the two distance sensors 16 are electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the two drive motors respectively through the inverter.

[0044] A propeller is provided in the water outlet, and the propeller is electrically connected to the output end of the water pump 4, and the water pump 4 is electrically connected to the output end of the controller, so as to realize operation at rated power when the cleaning robot is walking normally, and press the cleaning robot against the inner wall of the swimming pool while pumping water to prevent the cleaning robot from overturning, and reduce the operating power when the cleaning robot climbs a slope to reduce the suction between the cleaning robot and the inner wall of the swimming pool, thereby facilitating wall climbing.

[0045] The water pump 4, two drive motors, a controller and a frequency converter are all integrated inside a protective shell, and the protective shell is fixed to the top of the shell 14. A rechargeable battery is also fixed inside the protective shell, and the rechargeable battery is electrically connected to the water pump 4, two drive motors, a controller and a frequency converter respectively; the rechargeable battery is also electrically connected to a waterproof charging port embedded in the shell 14.

[0046] In this embodiment, an LED light 17 is fixed at the front end of the housing 14 and between the two distance sensors 16. The LED light 17 is electrically connected to the controller and is used to display the working mode (bottom cleaning or sidewall cleaning), power level and fault code. A communication interface 15 is also provided at the rear end of the housing 14 for connecting to external devices.

[0047] It should be noted that the above-mentioned electronic components are mature products on the market. This embodiment only needs to purchase them and connect them according to the instructions. No improvement is made to them, so their circuit connection structure and principle will not be described in detail here.

[0048] The cleaning assembly includes a roller 10 and a plurality of brush plates 9 uniformly fixed on the outer circumference of the roller 10, and the plurality of brush plates 9 are arranged in parallel; a first inner gear ring 19 is provided on the inner circumference of both ends of the roller 10, the first inner gear ring 19 is meshed with a first transmission gear, the first transmission gear is coaxially connected with a second transmission gear 2118, and the second transmission gear 2118 is meshed with a second transmission gear ring provided on the inner circumference of the driven front wheel 1; an installation bearing 20 is provided between the first transmission gear and the second transmission gear 2118, and the installation bearing 20 is fixed on the housing 14 via a bearing 20 seat.

[0049] The detachable filter assembly includes a filter bin 7 placed inside the shell 14, a filter screen 6 placed inside the filter bin 7, and a filter cover 5 magnetically attracted to the shell 14. One side of the filter cover 5 is locked with one side of the filter screen 6 via a slide lock, and the other side of the filter cover 5 is rotatably connected with the other side of the filter screen 6 via a hinge; the water inlet 11 is aligned with the connecting port 23 opened at the bottom end of the filter screen 6, and a dirt baffle 22 is fixed at the bottom end of the filter screen 6 and around the connecting port 23. The top end of the dirt baffle 22 is higher than the top end of the connecting port 23 to prevent pollutants from flowing out along the connecting port after the cleaning robot is pulled out.

[0050] A baffle 12 is fixed at the bottom of the shell 14 and the half cover is arranged at the position of the water inlet 11, and the cleaning component, the water inlet 11 and the baffle 12 are arranged in sequence; a drain port 13 connected to the detachable filter component is opened at the bottom of the rear side of the shell 14, and an elastic drain plate is arranged on the drain port 13; the elastic drain plate and the baffle 12 are both made of silicone. The above structure is used to lift the cleaning robot after cleaning, and under the action of internal water pressure, the elastic drain plate is opened to discharge the residual sewage, and during the cleaning process, the elastic drain plate is closed under the action of external water pressure.

[0051] The output shaft of the driving motor is fixedly connected to the axle of the first bevel gear 2, and the first bevel gear 2 is meshed with the second bevel gear fixed to the inner circumference of the rear wheel 3. The bevel gear transmission has the advantages of simple structure, high transmission efficiency, low cost, and space saving.

[0052] The working method of the swimming pool inner wall cleaning robot comprises the following steps:

[0053] S1. Place the cleaning robot into the swimming pool along any corner of the swimming pool. The cleaning robot sinks to the inner wall of the bottom of the swimming pool under the action of its own gravity.

[0054] S2, angle adjustment: using the distance values ​​detected by the two distance sensors 16 to the side wall of the swimming pool, determine whether the walking direction of the cleaning robot is perpendicular to the side wall of the swimming pool. If not, turn on the drive motor on the same side as the distance sensor 16 with the smaller distance value, and drive the rear wheel 3 on this side to rotate, thereby increasing the distance between the side with the smaller distance value of the cleaning robot and the side wall of the swimming pool until the distance values ​​collected by the two distance sensors 16 are equal.

[0055] S3, walking in an arch shape along the inner wall of the bottom of the swimming pool and cleaning the inner wall of the bottom of the swimming pool: turn on the two driving motors and the water pump 4, the two driving motors synchronously drive the two rear wheels 3 to rotate synchronously, and then use the transmission track 8 to drive the two front wheels 1 to rotate synchronously, driving the cleaning robot to walk vertically and straightly, until the distance values ​​collected by the two distance sensors 16 are equal to the first threshold value, the two driving motors run in reverse, driving the cleaning robot to retreat a set distance, until the distance values ​​collected by the two distance sensors 16 are equal to the second threshold value, the two driving motors run at a differential speed, driving the cleaning robot to rotate 90° clockwise, and then walk horizontally and straightly for a set distance, the two driving motors run at a differential speed again, driving the cleaning robot to rotate 90° clockwise, and then walk vertically and straightly, that is, reciprocating horizontal and vertical straight walking until the inner wall of the bottom of the swimming pool is covered;

[0056] In the process of walking, the first transmission gear and the second transmission gear 2118 are used to drive the roller 10 to rotate, and the brush plate 9 is used to clean the pollutants at the bottom of the swimming pool during the rotation. Under the action of the water pump 4, the water mixed with pollutants is pumped into the filter screen 6 through the water inlet 11, and then discharged from the water outlet after being filtered by the filter screen 6. The discharged water is used to press the cleaning robot to the inner wall of the bottom end of the swimming pool to prevent the cleaning robot from overturning.

[0057] wherein the first threshold is less than the second threshold;

[0058] S4, wall climbing: the two drive motors operate synchronously, driving the cleaning robot to move along the inner wall of the bottom of the swimming pool until the collected values ​​of the two distance sensors 16 are less than the first threshold value, and after reducing the operating power of the water pump 4, the two drive motors continue to operate synchronously until the rear wheels 3 of the cleaning robot are driven to climb up the side wall of the swimming pool, and the operating power of the water pump 4 is restored to the rated power, and the cleaning robot is pressed against the side wall of the swimming pool.

[0059] S5, walking in an arch shape along the side wall of the swimming pool and cleaning the side wall of the swimming pool: the two driving motors synchronously drive the two rear wheels 3 to rotate synchronously, and then use the transmission crawler 8 to drive the two front wheels 1 to rotate synchronously, driving the cleaning robot to walk vertically and straightly. The water immersion sensor detects the water discharge of the cleaning robot, and the two driving motors rotate in the opposite direction to drive the cleaning robot to retreat a set distance. Then the two driving motors run at a differential speed to drive the cleaning robot to rotate 90° clockwise, and then walk horizontally and straightly for a set distance. The two driving motors run at a differential speed again to drive the cleaning robot to rotate 90° clockwise, and then walk vertically and straightly, that is, reciprocating horizontal and vertical straight walking until the side wall of the swimming pool is covered;

[0060] In the process of walking, the first transmission gear and the second transmission gear 2118 are used to drive the roller 10 to rotate, and the brush plate 9 is used to clean the pollutants at the bottom of the swimming pool during the rotation. Under the action of the water pump 4, the water mixed with pollutants is pumped into the filter screen 6 through the water inlet 11, and then discharged from the water outlet after being filtered by the filter screen 6. The discharged water is used to press the cleaning robot to the inner wall of the bottom end of the swimming pool to prevent the cleaning robot from overturning.

[0061] S6, repeating steps S4 and S5 until all four side walls of the swimming pool are cleaned;

[0062] S7, turn off the drive motor and the water pump 4, salvage the cleaning robot out of the swimming pool, pull out the filter cover 5 and the filter net 6, open the filter cover 5, remove the pollutants in the filter net 6, and then reinstall the cleaned filter net 6 and filter cover 5 into the filter bin 7 for next use.

[0063] Therefore, the utility model adopts the above-mentioned swimming pool inner wall cleaning robot, which can clean the inner wall and side walls of the bottom of the swimming pool at the same time, avoiding the existence of cleaning dead corners and improving the cleaning effect.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A swimming pool inner wall cleaning robot, characterized in that: The invention comprises a climbing crawler walking mechanism and a shell provided on the climbing crawler walking mechanism, wherein the climbing crawler walking mechanism comprises climbing crawler walking components symmetrically arranged on the left and right sides of the shell, wherein the climbing crawler walking components comprise an active rear wheel, a driven front wheel and a transmission crawler wrapped between the active rear wheel and the driven front wheel, wherein the wheel diameter of the driven front wheel is larger than the wheel diameter of the active rear wheel, and the two active rear wheels located on the left and right sides of the shell are respectively connected to two driving motors, and the driving motors are fixed on the shell; A cleaning component is arranged between the two driven rear wheels on the left and right sides of the shell, a water inlet is arranged at the bottom of the shell and close to the cleaning component, a water outlet is arranged at the top of the shell and facing the inner wall of the swimming pool, and the water inlet and the water outlet are connected via a detachable filtering component.

2. A swimming pool inner wall cleaning robot according to claim 1, characterized in that: Two distance sensors are fixed on the front side of the housing and at positions corresponding to the two driven front wheels respectively, and the two distance sensors are located on the same horizontal line; A water immersion sensor is also fixed to the bottom end of the rear side of the shell. The water immersion sensor and the two distance sensors are electrically connected to the input end of the controller. The output end of the controller is electrically connected to the two drive motors respectively through the frequency converter.

3. A swimming pool inner wall cleaning robot according to claim 2, characterized in that: A propeller is provided in the water outlet, and the propeller is electrically connected to the output end of the water pump, and the water pump is electrically connected to the output end of the controller, so as to realize operation at rated power when the cleaning robot is walking normally, and press the cleaning robot against the inner wall of the swimming pool while pumping water to prevent the cleaning robot from overturning, and reduce the operating power when the cleaning robot climbs a slope to reduce the suction between the cleaning robot and the inner wall of the swimming pool.

4. A swimming pool inner wall cleaning robot according to claim 3, characterized in that: The water pump, two drive motors, a controller and a frequency converter are all integrated inside the protective shell, which is fixed to the top of the housing. A rechargeable battery is also fixed inside the protective shell, and the rechargeable battery is electrically connected to the water pump, two drive motors, the controller and the frequency converter respectively; The rechargeable battery is also electrically connected to a waterproof charging port embedded in the housing.

5. A swimming pool inner wall cleaning robot according to claim 4, characterized in that: The cleaning assembly includes a drum and a plurality of brush plates evenly fixed on the outer circumference of the drum, and the plurality of brush plates are arranged in parallel; A first inner gear ring is provided on the inner circumference side of both ends of the drum, the first inner gear ring is meshed with the first transmission gear, the first transmission gear is coaxially connected with the second transmission gear, and the second transmission gear is meshed with the second transmission gear ring provided on the inner circumference side of the driven front wheel; A mounting bearing is arranged between the first transmission gear and the second transmission gear, and the mounting bearing is fixed on the housing via a bearing seat.

6. A swimming pool inner wall cleaning robot according to claim 5, characterized in that: The detachable filter assembly includes a filter chamber disposed inside the housing, a filter screen disposed inside the filter chamber, and a filter cover magnetically attracted to the housing, one side of the filter cover is locked with one side of the filter screen via a slide lock, and the other side of the filter cover is rotatably connected with the other side of the filter screen via a hinge; The water inlet is aligned with the communication port opened at the bottom end of the filter screen, and a dirt baffle is fixed at the bottom end of the filter screen and around the communication port.

7. A swimming pool inner wall cleaning robot according to claim 6, characterized in that: A baffle is fixed at the bottom of the shell and the half cover is arranged at the position of the water inlet, and the cleaning component, the water inlet and the baffle are arranged in sequence; A drain port connected to the detachable filter assembly is provided at the bottom end of the rear side of the housing, and an elastic drain plate is provided on the drain port; The elastic drain board and baffle are both made of silicone.

8. The swimming pool inner wall cleaning robot according to claim 7, characterized in that: The output shaft of the driving motor is fixedly connected to the wheel shaft of the first bevel gear, and the first bevel gear is meshed with the second bevel gear fixed to the inner circumference side of the rear wheel.

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