Swimming pool cleaning robot

Abstract

This application provides a swimming pool cleaning robot, relating to the field of swimming pool cleaning technology. The robot includes a main body, a water suction component, a walking component, a transmission component, and a front roller brush. The walking component includes front wheels and a drive component. The front wheels are positioned near the front end of the main body. The front roller brush has a first state and a second state. In the robot's pool wall cleaning mode, when the main body moves to the pool wall, the water suction component reduces or shuts off the drainage, until the drive component drives the front roller brush to switch from the first state to the second state. The swimming pool cleaning robot provided by this application can prevent the front roller brush from tilting up when encountering the pool wall. Tilt-up reduces the contact area between the front roller brush and the surface to be cleaned. Especially when the swimming pool cleaning robot switches from the pool bottom to the pool wall, the technical solution described in this application can effectively increase the contact area between the front roller brush and the surface to be cleaned, better cleaning the dead corner areas between the pool bottom and the pool wall, thereby improving the overall cleaning effect.

Description

Technical Field

[0001] This application relates to the field of pool cleaning technology, and more particularly to a pool cleaning robot. Background Technology

[0002] Pool cleaning is an important process for maintaining the cleanliness and safety of swimming pool water. Regular pool cleaning not only ensures clear and hygienic water but also extends the lifespan of pool equipment. Pool cleaning typically relies on manual cleaning or automated cleaning equipment; however, due to the lower efficiency of manual cleaning, automated cleaning equipment is becoming increasingly popular.

[0003] Automatic cleaning equipment uses a water suction component to guide water containing impurities from the inlet to the machine's filter component, which then cleans the swimming pool. The filter component, water suction component, drive motor drive component, and transmission component are distributed in various positions and heights of the robot. An unreasonable layout will lead to a decrease in the robot's cleaning ability.

[0004] For example, in one scenario, an unreasonable spatial layout between components can lead to limited effective dust collection space for the filter assembly. After the water absorption assembly is activated, the water flow filtration assembly filters the water, making the filter position of the trash can prone to clogging. Alternatively, if the filter assembly becomes clogged, the front roller brush may move away from the cleaning surface, causing the front roller brush to tilt upwards or the entire machine to float, affecting the overall cleaning effect and increasing user inconvenience. In another scenario, due to an unreasonable spatial layout between components, when the automatic pool cleaning equipment is in pool wall cleaning mode, the robot will move from the bottom of the pool towards the pool wall. The front roller brush may tilt upwards before reaching the pool wall, or when the robot reaches the pool wall, the contact area between the front roller brush and the wall may be too small, resulting in low friction between the front roller brush and the pool wall. This makes it difficult to clean the wall at the junction between the bottom and the pool wall, leading to poor pool wall cleaning ability. Summary of the Invention

[0005] To address the issue that the front roller brush of the existing automatic pool cleaning robot tends to tilt upwards before encountering the pool wall, failing to meet users' overall cleaning needs in the pool wall cleaning mode, this application provides a pool cleaning robot. Through a reasonable layout of its components, the probability of the front roller brush tilting upwards before encountering the pool wall can be reduced, effectively improving the overall cleaning effect of the robot.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] A first aspect of this application provides a pool cleaning robot, which can move in water to perform cleaning. The pool cleaning robot includes:

[0008] The main body, along the robot's forward direction, has a front end and a rear end. The main body has a shell and a receiving cavity. The shell has a water inlet that connects to the receiving cavity. The water inlet is located on the lower surface of the shell.

[0009] Water-absorbing components;

[0010] The filter assembly is located inside the housing cavity. The filter assembly has a filter chamber and a dust inlet. The dust inlet is connected to the water inlet and the filter chamber. The water suction assembly is used to draw water flow, so that the water containing impurities passes through the water inlet and dust inlet and is discharged to the outside of the housing after being filtered by the filter chamber.

[0011] A walking assembly, the walking assembly including a front walking wheel rotatably disposed at the front end;

[0012] A drive assembly, located near the front end, includes a drive motor and a first output gear. The drive motor includes a motor rotating shaft connected to the first output gear.

[0013] A front roller brush is rotatably disposed at the front end. The front roller brush is used to clean the surface to be cleaned. The front roller brush includes a first state and a second state. In the first state, the front roller brush abuts against the pool wall and the pool bottom. In the second state, the front roller brush abuts only against the pool wall.

[0014] A transmission assembly, which includes at least a roller brush transmission group; the first output gear is connected to the front roller brush via the roller brush transmission group, so that the drive assembly drives the front roller brush to rotate in the water.

[0015] The robot includes a pool wall cleaning mode. In the pool wall cleaning mode, the main body moves to the pool wall, the water absorption component reduces the drainage volume or turns off the water absorption component, until the drive component drives the front roller brush to switch from the first state to the second state, and the drive component drives the front roller brush to move along the pool wall towards the waterline position.

[0016] It should be further explained that, in this embodiment, the walking component can drive the main body to move in the pool water along a preset direction. The water includes both underwater and surface areas. "Underwater" means the pool cleaning robot is completely submerged below the waterline, while "surface" means the pool cleaning robot is at least partially exposed above the waterline. The suction component provides suction force, creating negative pressure at the water inlet on the shell. After the suction component is activated, the water containing impurities, under the action of suction force, passes through the water inlet, dust outlet, and filter chamber. The debris in the water is retained in the filter chamber, and the filtered water is discharged outside the shell.

[0017] Compared with the prior art, in this embodiment, the drive component and the front wheels are close to the front end of the main body. The front roller brush is connected to the first output gear through the roller brush transmission assembly. By limiting the position of the front roller brush, drive motor and front wheels, and coordinating the transmission connection between each component and the transmission assembly, the components at the front end of the main body are arranged compactly, increasing the space of the filter assembly and improving the quality at the front roller brush position. When the water suction component is activated, the filtration space of the filter assembly can effectively reduce the probability of the filter assembly being blocked. With this setting, in the pool wall cleaning mode, after the main body moves to the pool wall, the drainage volume of the water suction component is reduced or turned off, which can reduce the suction force at the water inlet position, thereby actively controlling when the roller brush is lifted relative to the pool bottom. During the process of switching the front roller brush from the first state to the second state, the contact area between the front roller brush and the surface to be cleaned is increased, thereby improving the cleaning effect of the pool cleaning robot on the edge of the pool bottom when switching between the pool wall and the pool bottom.

[0018] A second aspect of this application provides a pool cleaning robot capable of moving in water to perform cleaning, the pool cleaning robot comprising:

[0019] The main body, along the forward direction of the robot, has a front end and a rear end, a shell and a receiving cavity, and the shell has a water inlet communicating with the receiving cavity, the water inlet being located on the lower surface of the shell;

[0020] A water-absorbing assembly is used to draw water from the inlet into the receiving cavity and then discharge it to the outside of the housing.

[0021] A walking assembly, the walking assembly including a front walking wheel rotatably disposed at the front end;

[0022] A drive assembly, located near the front end, includes a drive motor and a first output gear. The drive motor includes a motor rotating shaft connected to the first output gear.

[0023] A front roller brush is rotatably disposed at the front end. The front roller brush is used to clean the surface to be cleaned. The front roller brush includes a first state and a second state. In the first state, the front roller brush abuts against the pool wall and the pool bottom. In the second state, the front roller brush abuts only against the pool wall.

[0024] A transmission assembly, which includes at least a roller brush transmission group; the first output gear is connected to the front roller brush via the roller brush transmission group, so that the drive assembly drives the front roller brush to rotate in the water.

[0025] The robot includes a pool wall cleaning mode. In the pool wall cleaning mode, the main body moves to the pool wall, the water absorption component reduces the drainage volume or turns off the water absorption component, until the drive component drives the front roller brush to switch from the first state to the second state, and the drive component drives the front roller brush to move along the pool wall towards the waterline position.

[0026] In this embodiment, the drive assembly and the front wheels are located near the front end of the main body. The front roller brush is connected to the first output gear via a roller brush transmission assembly. By defining the positions of the front roller brush, drive motor, and front wheels, and by coordinating the transmission connections between each component and the transmission assembly, the components at the front end of the main body are arranged compactly, increasing the space for the filter assembly and improving the quality at the front roller brush position. The process of the water suction assembly drawing water and discharging it after passing through the inlet and the receiving cavity creates negative pressure at the inlet of the pool cleaning robot. Therefore, in the pool wall cleaning mode, after the main body moves to the pool wall, the drainage volume of the water suction component is reduced or turned off, which reduces the negative pressure at the water inlet. This reduces the suction force of the pool cleaning robot on the pool bottom or pool wall. Consequently, the pool cleaning robot actively controls when the roller brush is lifted relative to the pool bottom, effectively assisting the front roller brush to switch from the first state to the second state, increasing the contact area between the front roller brush and the surface to be cleaned, and better cleaning the dead corner area between the pool bottom and the pool wall. This improves the cleaning effect of the pool cleaning robot on the edge of the pool bottom when switching between the pool wall and the pool bottom.

[0027] A third aspect of this application provides a pool cleaning robot that can move in water to perform cleaning. The pool cleaning robot includes:

[0028] The main body has a front end and a back end, and the main body is equipped with a detection component. The detection component is used to detect environmental information, including the wall information of the pool wall. In the horizontal direction, the length of the pool cleaning robot is L1, and in the vertical direction, the width of the pool cleaning robot is W1.

[0029] A walking assembly, the walking assembly including a front walking wheel disposed near the front end;

[0030] A drive assembly, located near the front end, includes a drive motor and a first output gear. The drive motor includes a motor rotating shaft connected to the first output gear.

[0031] The transmission assembly includes a roller brush drive assembly;

[0032] A front roller brush is rotatably mounted at the front end. The front roller brush assembly is used to clean the surface to be cleaned. A first output gear is connected to the front roller brush via a roller brush transmission assembly, so that the drive assembly drives the front roller brush to rotate in the water.

[0033] The pool cleaning robot includes a pool wall cleaning mode. In this mode, the main body moves to the pool wall. When the pool wall is the first wall, and the robot cannot continue to move towards the waterline along the first wall, the front wheels and the front roller brush move away from the first wall. When the pool wall is the second wall, the front wheels and the front roller brush continue to move towards the waterline along the second wall until the robot reaches the waterline. Along the robot's direction of travel, the first wall is a concave arc-shaped surface with an entry opening. The vertical diameter of the entry opening has a maximum value of L2, and the horizontal diameter of the entry opening has a maximum value of W2, where L2 > L1 and W2 > W1. The second wall is a vertical wall.

[0034] It should be further explained that, in this embodiment, the detection component is used to collect environmental information within the pool. The pool cleaning robot adjusts its movement and cleaning modes based on the environmental information collected by the detection component. In this embodiment, after the detection component detects the environmental information, the drive motor and the front wheels are positioned close to the front end of the main body. The front wheels are connected to the first output gear via a wheel transmission assembly, and the front roller brush is connected to the first output gear via a brush transmission assembly. Through the positional constraints of the front roller brush, drive motor, and front wheels, and the coordination of the transmission connections between each component and the transmission assembly, the components at the front end of the main body are arranged compactly. Compared to other positions on the pool cleaning robot, this improves the cleaning quality at the front roller brush position. With this setup, the cleaning of the pool wall... In cleaning mode, after the main body moves to the pool wall, if the pool wall is the first wall surface, the robot cannot continue to move towards the waterline along the first wall surface. The front wheels and the front roller brush move away from the first wall surface, increasing the contact area between the front roller brush and the pool wall. This allows for cleaning of the junction between the first wall surface and the pool bottom, while effectively reducing the robot's energy consumption. When the pool wall is the second wall surface, i.e., when the pool wall is a vertical wall, the drainage volume of the water suction component is reduced or turned off, which reduces the suction force at the water inlet. This allows the robot to actively control when the roller brush is lifted relative to the pool bottom, assisting the front roller brush in switching from the first state to the second state, increasing the contact area between the front roller brush and the surface to be cleaned, and thus improving the cleaning effect of the pool cleaning robot on the edge of the pool bottom when switching between the pool wall and the pool bottom.

[0035] A fourth aspect of this application provides a swimming pool cleaning robot that can move in water to perform cleaning. The swimming pool cleaning robot includes:

[0036] The main body, along the robot's direction of travel, has a front end and a rear end;

[0037] The walking assembly includes a front walking wheel near the front end;

[0038] A drive assembly is located near the front end. The drive assembly includes a drive motor and a first output gear. The drive motor includes a motor rotating shaft connected to the first output gear, so that the drive assembly drives the front roller brush to rotate in the water.

[0039] In the vertical direction, the rotation axis of the front travel wheel is located in the first plane, the bottom of the front travel wheel is located in the second plane, and the rotation axis of the first output gear is located between the first plane and the second plane.

[0040] Transmission components, including a drive assembly for the traveling wheels;

[0041] The front roller brush is rotatably mounted at the front end and used to clean the surface to be cleaned. The first output gear is connected to the front roller brush through the roller brush transmission assembly. The line connecting the rotation center of the first output gear, the rotation center of the front travel wheel, and the rotation center of the front roller brush forms three included angles, wherein the included angle with the rotation center of the front travel wheel as the vertex is the first included angle β, where β < 150°.

[0042] It should be further explained that in this embodiment, the drive motor and the front walking wheel are both close to the front end of the main body. The front walking wheel is connected to the first output gear through the walking wheel transmission group, and the front roller brush is connected to the first output gear through the roller brush transmission group, so that the first included angle β < 150°. This makes the front roller brush, drive motor, front walking wheel, and first output gear concentrated at the front end of the main body and close to the bottom of the main body. This improves the overall compact arrangement of the various components at the front end of the main body. With this setting, when the robot is in the pool bottom cleaning mode or the pool wall cleaning mode, it can effectively prevent the front roller brush from lifting relative to the pool bottom in case of an accident. This helps to increase the contact area between the front roller brush and the surface to be cleaned, and improves the cleaning effect of the pool cleaning robot on the dead corner area between the pool bottom and the pool wall when switching between the pool wall and the pool bottom.

[0043] The swimming pool cleaning equipment provided in this application embodiment includes a water suction component. In the pool wall cleaning mode, when the current roller brush is only in contact with the pool wall, the water suction component is activated or the drainage volume of the water suction component is increased.

[0044] In this embodiment, in the pool wall cleaning mode, when the front roller brush is only in contact with the pool wall, the drainage volume of the water absorption component is increased, the suction force of the bottom of the robot is increased, the contact area between the front roller brush and the pool wall is further increased, the friction between the front roller brush and the pool wall is increased, thereby improving the cleaning effect of the front roller brush on the pool wall, improving the stability of the main body moving on the pool wall, and preventing the robot from slipping off the pool wall to the bottom of the pool.

[0045] The swimming pool cleaning equipment provided in this application embodiment includes a walking wheel transmission assembly. The first output gear is connected to the front walking wheel through the walking wheel transmission assembly. The roller brush transmission assembly includes an internal gear. The first output gear is located inside the front walking wheel, and the internal gear is disposed on the inner wall of the front walking wheel. The first output gear meshes with the internal gear for transmission.

[0046] It should be further explained that the first output gear is located inside the front traveling wheel and meshes with the internal gear to drive the front traveling wheel to rotate relative to the main body, thereby causing the main body to move relative to the main body. Furthermore, the position of the first output gear can be further restricted, concentrating the drive motor and the first output gear on one side of the front traveling wheel, thereby improving the spatial integration effect of the front end of the main body.

[0047] The swimming pool cleaning device provided in this application embodiment includes a roller brush transmission assembly comprising a first external gear, a second external gear, and a roller brush transmission gear. The first external gear is disposed inside the front traveling wheel, and the front traveling wheel is coaxial and rotates in the same direction. The outer diameter of the first external gear is smaller than the inner diameter of the internal gear. The roller brush transmission gear is disposed on the rotating shaft of the front roller brush. The second external gear is disposed between the first external gear and the roller brush transmission gear, and the second external gear meshes with the first external gear and the roller brush transmission gear for transmission.

[0048] It should be further explained that the first external gear, the second external gear, and the roller brush drive gear are all concentrated at the front end of the main body, so that the rotation direction of the first output gear is the same as the rotation direction of the front roller brush and the front traveling wheel. That is, the first output gear, the front roller brush, and the front traveling wheel rotate clockwise or counterclockwise at the same time. This makes it easier to control the rotation direction of the front roller brush and also makes it easier for the robot to calculate the rotation direction of the front traveling wheel and measure the robot's mileage.

[0049] The swimming pool cleaning device provided in this application embodiment has, in the vertical direction, the rotation center of the front traveling wheel is located in a first plane, the bottom of the front traveling wheel is located in a second plane, the rotation center of the front traveling wheel, the rotation center of the second external gear, and the rotation center of the roller brush transmission gear are all located between the first plane and the second plane, and the rotation center of the first output gear is located in the first plane or between the first plane and the second plane.

[0050] It should be further explained that by bringing the front traveling wheel, the second external gear, the first output gear, and the roller brush drive gear closer to the second plane, the stability of the front end of the main body near the bottom position is further improved, and the front roller brush is further lifted.

[0051] The swimming pool cleaning device provided in this application embodiment has, in the vertical direction, the rotation center of the front walking wheel is located in a first plane, the bottom of the front walking wheel is located in a second plane, and the rotation center of the front walking wheel, the rotation center of the second external gear, and the rotation center of the roller brush transmission gear are all located between the first plane and the second plane. In the vertical upward direction, the rotation axis of the first output gear is located above the first plane.

[0052] It should be further explained that, in this embodiment, the front walking wheel, the second external gear, and the roller brush transmission gear are close to the second plane, so that the first output gear is located above the first plane and is connected to the internal gear for transmission. This allows the first output gear, the front roller brush, and the front walking wheel to rotate clockwise or counterclockwise simultaneously. This facilitates the control of the rotation direction of the front roller brush and also facilitates the robot to calculate the rotation direction of the front walking wheel and measure the robot's mileage.

[0053] The swimming pool cleaning equipment provided in this application embodiment has a first external gear and a front walking wheel integrally formed.

[0054] It should be further explained that, in this embodiment, an internal gear is provided on the inner wall of the front traveling wheel, and a first external gear is provided at the rotation center of the front traveling wheel. The first external gear is connected to the internal gear through transmission. When the first output gear drives the internal gear to rotate, the first external gear can rotate synchronously with the front traveling wheel, thereby improving the stability of the transmission component during the transmission process.

[0055] The swimming pool cleaning equipment provided in this application embodiment has a first external gear detachably connected to the front walking wheel. The roller brush transmission assembly also includes a second output gear. The second output gear and the first output gear are axially spaced on the motor rotation shaft. The first output gear and the second output gear rotate in the same direction. The second output gear is connected to the first external gear in a transmission connection.

[0056] It should be further explained that in this embodiment, the front walking wheel and the first external gear are detachably connected. When the front walking wheel needs maintenance, there is no need to disassemble the first external gear, which improves the convenience of maintaining the walking component. The second output gear is connected to the first external gear, so that the first output gear, the front roller brush, and the front walking wheel rotate clockwise or counterclockwise at the same time. This makes it easier to control the rotation direction of the front roller brush and also makes it easier for the robot to calculate the rotation direction of the front walking wheel and measure the robot's mileage.

[0057] The swimming pool cleaning device provided in this application embodiment has a top on the first wall in the vertical direction. The top is located inside the inlet opening, and the distance between the top and the horizontal plane where the pool bottom is located is L3, where L3 > L2.

[0058] In this embodiment, when L3 > L2, the arc-shaped surface between the top of the first wall and the top of the entry opening cannot be cleaned by the pool cleaning robot, and the front walking wheel and the front roller brush move away from the first wall.

[0059] The swimming pool cleaning equipment provided in this application embodiment has a gradually increasing curvature of the first wall surface along the vertically upward direction.

[0060] In this embodiment, as the curvature of the first wall gradually increases, the front roller brush gradually moves away from the first wall, resulting in a decrease in the friction between the front roller brush and the first wall. After identifying the state of the first pool wall, the detection component can control the front walking wheel and the front roller brush to move away from the first wall.

[0061] In this embodiment, the pool cleaning device includes a main body, a water absorption component, a filter component, a walking component, a transmission component, and a front roller brush. The walking component includes front wheels, a drive component, and the front wheels are positioned near the front end of the main body. The front roller brush has a first state and a second state. In the robot pool wall cleaning mode, when the main body moves to the pool wall, the drainage volume of the water absorption component decreases or shuts off until the walking component drives the front roller brush to switch from the first state to the second state. Compared with the prior art, the pool cleaning device provided in this application can increase the effective filtration space of the filter component, prevent the front roller brush from tilting up when encountering the pool wall, and increase the contact area between the front roller brush and the surface to be cleaned when the pool cleaning robot switches from the pool bottom to the pool wall, thereby improving the overall cleaning effect of the pool cleaning robot. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0063] Figure 1 This is a schematic diagram of the structure of a pool cleaning robot provided in an embodiment of this application;

[0064] Figure 2 This is a partial cross-sectional structural diagram of a pool cleaning robot provided in an embodiment of this application;

[0065] Figure 3 This is a schematic diagram illustrating the state of a pool cleaning robot when its front roller brush is not in contact with the pool wall, as provided in an embodiment of this application.

[0066] Figure 4 This application provides a schematic diagram illustrating the state of a pool cleaning robot when its front roller brush contacts the pool wall.

[0067] Figure 5 This is a schematic diagram illustrating another state of a pool cleaning robot when its front roller brush contacts the pool wall, as provided in an embodiment of this application.

[0068] Figure 6 This application provides an embodiment of a swimming pool cleaning robot in which the front roller brush is in contact only with the pool wall.

[0069] Figure 7 This is a schematic diagram illustrating the state of a pool cleaning robot when the front roller brush contacts the first wall and the pool bottom, as provided in an embodiment of this application.

[0070] Figure 8 This application provides a schematic diagram illustrating a state of a pool cleaning robot where the front roller brush is only in contact with the first wall surface.

[0071] Figure 9 for Figure 11 This application provides a schematic diagram of the state of a pool cleaning robot sliding down a first wall surface.

[0072] Figure 10 A schematic diagram showing the state of a pool cleaning robot provided in this application when the front roller brush is only in contact with the second wall and moves to the waterline position;

[0073] Figure 11 This application provides a partial schematic diagram of the transmission connection between the first output gear and the transmission assembly in an embodiment of the present application.

[0074] Figure 12 for Figure 11 The embodiment shown in this application provides a simplified schematic diagram of the transmission connection of the first output gear and the transmission assembly;

[0075] Figure 13 A schematic diagram of another first output gear and transmission component transmission connection of a pool cleaning robot provided in an embodiment of this application;

[0076] Figure 14 This is a simplified schematic diagram of the transmission connection of another first output gear and transmission component of a pool cleaning robot provided in an embodiment of this application.

[0077] Explanation of reference numerals in the attached figures

[0078] 10. Main body;

[0079] 101. Front end; 102. Rear end; 103. Housing; 131. Inlet; 132. Outlet; 104. Receiving cavity; 105. Detection component;

[0080] 11. Water-absorbing component;

[0081] 12. Filter assembly; 121. Filter chamber; 122. Dust outlet;

[0082] 13. Walking components;

[0083] 1301, Drive motor; 1311, Motor rotating shaft; 1312, First output gear;

[0084] 1302. Front wheels;

[0085] 14. Transmission components;

[0086] 141. Walking wheel drive assembly; 1411. Internal gear;

[0087] 142. Brush drive assembly; 1421. First external gear; 1422. Second external gear; 1423. Brush drive gear; 1424. Second output gear;

[0088] 15. Front roller brush;

[0089] 16. First wall; 161. Entry opening; 17. Second wall;

[0090] 100, First state; 200, Second state; 300, Waterline; 400, Pool wall; 500, Pool bottom; β, First included angle;

[0091] 18. First plane; 19. Second plane. Detailed Implementation

[0092] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0093] In order to reduce the probability of the front roller brush 15 tilting forward when encountering the pool wall 400 in the pool cleaning robot's cleaning mode, increase the effective space of the filter chamber 121 of the filter assembly 12, avoid clogging of the filter assembly 12, increase the contact area between the front roller brush 15 and the surface to be cleaned, and thus improve the cleaning effect between the front roller brush 15 and the pool wall 400 or the edge of the pool bottom 500.

[0094] When the pool cleaning robot is in operation, the front roller brush 15 agitates the dirt on the surface to be cleaned. As the front roller brush 15 rotates, it drives the water flow towards the filter assembly 12. The water suction assembly 11 generates suction force, which drives the water containing impurities through the inlet 131 and dust outlet 122, and then through the filter chamber 121 before being discharged to the outside of the housing 103. During this process, if the filter chamber 121 of the filter assembly 12 is blocked, it will not be able to meet the requirements for filtering impurities in the water, and the water suction assembly 11 will not be able to generate negative pressure at the inlet 131. As a result, the pool cleaning robot will not be able to clean the pool wall 400, or in the pool wall 400 cleaning mode, the robot will slip off the pool wall 400, resulting in poor cleaning effect.

[0095] Example 1

[0096] A first aspect of this application provides a pool cleaning robot, which can move in water to perform cleaning. The pool cleaning robot includes:

[0097] The main body 10, along the forward direction of the robot, has a front end 101 and a rear end 102. The main body 10 has a shell 103 and a receiving cavity 104. The shell 103 has a water inlet 131 that communicates with the receiving cavity 104. The water inlet 131 is located on the lower surface of the shell 103.

[0098] Water absorption component 11;

[0099] The filter assembly 12 is disposed in the receiving cavity 104 and close to the rear end 102 of the housing 103. The filter assembly 12 has a filter chamber 121 and a dust outlet 122. The dust outlet 122 is connected to the water inlet 131 and the filter chamber 121. The water suction assembly 11 is used to draw water flow, so that the water flow containing impurities passes through the water inlet 131 and the dust outlet 122 and is discharged to the outside of the housing 103 after being filtered by the filter chamber 121.

[0100] The walking assembly 13 includes a front walking wheel 1302, which is rotatably disposed on the front end 101;

[0101] A drive assembly is located near the front end 101. The drive assembly includes a drive motor 1301 and a first output gear 1312. The drive motor 1301 includes a motor rotating shaft 1311, which is connected to the first output gear 1312.

[0102] A front roller brush 15 is rotatably disposed at the front end 101. The front roller brush 15 is used to clean the surface to be cleaned. The front roller brush includes a first state 100 and a second state 200. In the first state 100, the front roller brush 15 abuts against the pool wall 400 and the pool bottom 500. In the second state 200, the front roller brush 15 abuts only against the pool wall 400.

[0103] The transmission assembly 14 includes at least a roller brush transmission group 142; the first output gear 1312 is connected to the front roller brush 15 via the roller brush transmission group 142.

[0104] The robot includes a pool wall 400 cleaning mode. In the pool wall 400 cleaning mode, the main body 10 moves to the pool wall 400, the water absorption component 11 reduces the drainage volume or turns off the water absorption component 11, until the drive component drives the front roller brush 15 to switch from the first state 100 to the second state 200.

[0105] In this embodiment, the walking component 13 can drive the main body 10 to move in the water of the pool along a preset direction, wherein the water includes underwater and water surface. "Underwater" means that the pool cleaning robot is completely submerged below the waterline 300, and "water surface" means that the pool cleaning robot is at least partially exposed above the waterline 300. The water-absorbing component 11 provides suction force, creating negative pressure at the water inlet 131 on the housing 103. After the water-absorbing component 11 is activated, the water containing impurities, under the action of suction force, passes through the water inlet 131, the dust outlet 122, and the filter chamber 121. The impurities in the water are retained in the filter chamber 121, and the water filtered through the filter chamber 121 is discharged to the outside of the housing 103. In some embodiments, a water outlet 132 is provided on the housing 103, and the filtered water is discharged to the outside of the housing 103 through the water outlet 132. The water outlet 132 can be located at the top of the housing 103 or at other locations on the housing 103. The position of the water outlet 132 relative to the housing 103 is not limited in this embodiment and other embodiments. Those skilled in the art can adjust the position of the drain outlet according to the actual use, all within the scope of the embodiments of this application. Thus, the water-absorbing component 11 provides suction power for the water flow from the water inlet 131 to the outside of the water outlet 132.

[0106] In this embodiment, as Figure 1 , Figure 2 as well as Figure 14As shown, the drive motor 1301 and the front traveling wheel 1302 are both close to the front end 101 of the main body 10. The front traveling wheel 1302 is connected to the first output gear 1312 through the roller brush transmission assembly 142. The front roller brush 15 is connected to the first output gear 1312 through the traveling wheel transmission assembly 141. Through the positional limitation of the front roller brush 15, the drive motor 1301, and the front traveling wheel 1302, and the cooperation of the transmission connection of the transmission assembly 14, the various components at the front end 101 of the main body 10 are arranged compactly, improving the space of the filter assembly 12 and improving the mass at the position of the front roller brush 15. When the water absorption assembly 11 is started, due to the filter assembly The filtration space of 12 can effectively reduce the probability of the filter component 12 being clogged. With this setting, in the pool wall 400 cleaning mode, after the main body 10 moves to the pool wall 400, the drainage volume of the water absorption component 11 is reduced or closed, which can reduce the adsorption force at the water inlet 131 position, thereby actively controlling when the roller brush is lifted relative to the pool bottom 500. During the process of the front roller brush 15 switching from the first state 100 to the second state 200, the contact area between the front roller brush 15 and the surface to be cleaned is increased, thereby improving the cleaning effect of the pool cleaning robot on the edge of the pool bottom 500 when switching between the pool wall 400 and the pool bottom 500, and better cleaning the dead corner area between the pool bottom and the pool wall.

[0107] Furthermore, the filter assembly 12 is located near the rear end 102 of the main body 10, and the front roller brush 15 and the drive assembly are located near the front end 101 of the main body 10, providing more space for the filter assembly 12 within the receiving cavity 104. The following will describe in detail the various states of the pool cleaning robot in the pool wall 400 cleaning mode, in conjunction with the accompanying drawings.

[0108] like Figure 3 As shown, the front roller brush 15 is not in contact with the pool wall 400. In this embodiment, the water suction component 11 draws water in through the inlet 131 at the bottom of the housing 103 and discharges it through the outlet 132 at the top of the housing 103. The drive component drives the front roller brush 15 to rotate relative to the main body 10. The front roller brush 15 agitates the water flow towards the inlet 131. Debris in the water, especially on the surface of the pool bottom 500, is picked up by the front roller brush 15. Due to the action of the water suction component 11, a negative pressure is generated at the inlet 131, and the drainage volume at the outlet 132 is relatively large. Figure 2 As shown, the garbage in the water enters the filter chamber 121 after passing through the water inlet 131 and the dust outlet 122. The impurities in the water are retained in the filter chamber 121 located at the rear. The filtered water is discharged through the drain outlet. As the transmission component 14 and the drive component mentioned above are both close to the front end 101 of the main body 10, the effective filtration area of ​​the filter chamber 121 is large, making it less prone to clogging and increasing the impurity holding space.

[0109] like Figure 4 As shown, the front roller brush 15 is in contact with the pool wall 400 and the pool bottom 500, meaning the front roller brush 15 is currently in the first state 100. Figure 3 The difference shown is that at this time, the drainage volume of the water absorption component 11 is reduced, and consequently, the negative pressure at the water inlet 131 is reduced. The front travel wheel 1302 and the front roller brush 15 continue to rotate, so that the front roller brush 15 can clean the junction of the pool wall 400 and the pool bottom 500, that is, the edge area of ​​the pool bottom 500. In this state, there is friction between the front roller brush 15 and the pool wall 400. When the drive component drives the front roller brush 15 to continue moving towards the pool wall 400 through the roller brush transmission group 142, the front roller brush 15 can be easily lifted relative to the pool bottom 500 and moved along the pool wall 400 towards the waterline 300.

[0110] like Figure 5 As shown, this state is similar to Figure 4 The difference shown is that the water absorption assembly 11 is closed at this time, meaning the drainage volume of the water absorption assembly 11 is zero. When the drive assembly drives the front roller brush 15 to continue moving towards the pool wall 400 via the roller brush transmission group 142, compared to... Figure 4 As shown in the diagram of the water-absorbing component 11, the pool cleaning robot can more easily lift the front roller brush 15 relative to the pool bottom 500. Those skilled in the art can assess the working state of the water-absorbing component 11 in different pool conditions and cleaning modes on the pool wall 400. Figure 4 or Figure 5 The adjustment is shown. For example, when there are many impurities at the edge between the pool wall 400 and the pool bottom 500, causing the water absorption component 11 to be in the state shown... Figure 4 The drainage volume is reduced as shown, but the drainage volume is not zero. In another scenario, when facing a complex pool wall shape (400°), making it difficult for the pool robot to climb, the state of the pool cleaning robot's water suction component 11 is adjusted as follows: Figure 5 The absorbent assembly 11 is shown to be closed.

[0111] like Figure 6 As shown, this state is similar to Figure 4 as well as Figure 5 The difference shown is that in this state, the front roller brush 15 is only in contact with the pool wall 400, that is, the front roller brush 15 is in the second state 200, when it is in the state of Figure 4 as well as Figure 5 As shown, after the drive component continues to drive the front roller brush 15 to rotate, the roller brush can switch from the first state 100 to the second state 200. The front roller brush 15 rotates relative to the pool wall 400 and stirs up the debris on the pool wall 400, moving it towards the water inlet 131, thereby cleaning the pool wall 400.

[0112] Furthermore, in one embodiment, the pool cleaning robot also includes a water suction component 11, which is activated or increases the drainage volume of the water suction component 11 when the current roller brush 15 is only in contact with the pool wall 400 in the cleaning mode of the pool wall 400.

[0113] In this embodiment, in the pool wall 400 cleaning mode, when the front roller brush 15 is only in contact with the pool wall 400, the drainage volume of the water absorption component 11 is increased, the suction force of the bottom of the robot is increased, the contact area between the front roller brush 15 and the pool wall 400 is further increased, the friction between the front roller brush 15 and the pool wall 400 is increased, thereby improving the cleaning effect of the front roller brush 15 on the pool wall 400, improving the stability of the main body 10 moving on the pool wall 400, and preventing the robot from slipping off the pool wall 400 to the bottom of the pool 500.

[0114] Example 2

[0115] A second aspect of this application provides a pool cleaning robot capable of moving in water to perform cleaning, the pool cleaning robot comprising:

[0116] The main body 10, along the forward direction of the robot, has a front end 101 and a rear end 102, a shell 103 and a receiving cavity 104, the shell 103 has a water inlet 131 communicating with the receiving cavity 104, and the water inlet 131 is located on the lower surface of the shell 103.

[0117] Water absorption assembly 11, which is used to draw water from the inlet 131 into the receiving cavity 104 and then discharge it to the outside of the housing 103;

[0118] The walking assembly 13 includes a front walking wheel 1302, which is rotatably disposed on the front end 101;

[0119] A drive assembly is located near the front end 101. The drive assembly includes a drive motor 1301 and a first output gear 1312. The drive motor 1301 includes a motor rotating shaft 1311, which is connected to the first output gear 1312.

[0120] A front roller brush 15 is rotatably disposed at the front end 101. The front roller brush 15 is used to clean the surface to be cleaned. The roller brush includes a first state 100 and a second state 200. In the first state 100, the front roller brush 15 abuts against the pool wall 400 and the pool bottom 500. In the second state 200, the front roller brush 15 abuts only against the pool wall 400.

[0121] The transmission assembly 14 includes at least a roller brush transmission group 142; the first output gear 1312 is connected to the front roller brush 15 via the roller brush transmission group 142.

[0122] The robot includes a pool wall 400 cleaning mode. In the pool wall 400 cleaning mode, the main body 10 moves to the pool wall 400, the water absorption component 11 reduces the drainage volume or turns off the water absorption component 11, until the drive component drives the front roller brush 15 to switch from the first state 100 to the second state 200.

[0123] Unlike Embodiment 1 above, in Embodiment 2, the function of the water-absorbing component 11 is redefined. The water-absorbing component 11 is only used to suck water from the inlet 131 into the receiving cavity 104 and then discharge it to the outside of the housing 103. The technology related to the filter component 12 is not described. The relevant technology can be referred to the previous embodiment or other existing technologies. In this embodiment, there is no detailed description of the filter component 12. In this embodiment, the description of the relevant state and function of the pool cleaning robot in the pool wall 400 cleaning mode is the same as that in the above embodiment. The following is a brief description of the beneficial effects of this embodiment compared with the prior art.

[0124] In this embodiment, compared to the prior art, the drive assembly and the front wheel 1302 are positioned close to the front end 101 of the main body 10. The front roller brush 15 is connected to the first output gear 1312 via the roller brush transmission assembly 142. By defining the positions of the front roller brush 15, the drive motor 1301, and the front wheel 1302, and by coordinating the transmission connections between each component and the transmission assembly 14, the components at the front end 101 of the main body 10 are arranged compactly, increasing the space of the filter assembly 12 and improving the quality at the position of the front roller brush 15. After the water is sucked up by the water suction assembly 11, the water flows through the inlet 131 and the receiving cavity 104 before being discharged. This process is part of the process of the pool cleaning machine. A negative pressure is created at the inlet 131. Thus, in the pool wall 400 cleaning mode, after the main body 10 moves to the pool wall 400, the drainage of the water suction component 11 is reduced or shut off, which reduces the negative pressure at the inlet 131. This reduces the suction force of the pool cleaning robot on the pool bottom 500 or the pool wall 400. Consequently, the pool cleaning robot actively controls when the roller brush is lifted relative to the pool bottom 500, effectively assisting the front roller brush 15 to switch from the first state 100 to the second state 200, increasing the contact area between the front roller brush 15 and the surface to be cleaned, thereby improving the cleaning effect of the pool cleaning robot on the edge of the pool bottom 500 when switching between the pool wall 400 and the pool bottom 500.

[0125] Example 3

[0126] A third aspect of this application provides a pool cleaning robot that can move in water to perform cleaning. The pool cleaning robot includes:

[0127] The main body 10 has a front end 101 and a rear end 102, and the main body 10 is provided with a detection component 105. The detection component 105 is used to detect environmental information, including the wall information of the pool wall 400. In the horizontal direction, the length of the pool cleaning robot is L1, and in the vertical direction, the width of the pool cleaning robot is W1.

[0128] Walking assembly 13, the walking assembly 13 including front walking wheels 1302 disposed near the front end 101;

[0129] A drive assembly is located near the front end 101. The drive assembly includes a drive motor 1301 and a first output gear 1312. The drive motor 1301 includes a motor rotating shaft 1311, which is connected to the first output gear 1312.

[0130] Transmission assembly 14, which includes a roller brush transmission assembly 142;

[0131] A front roller brush 15 is rotatably disposed at the front end 101. The front roller brush 15 assembly is used to clean the surface to be cleaned. The first output gear 1312 is connected to the front roller brush 15 through the roller brush transmission assembly 142.

[0132] The pool cleaning robot includes a pool wall 400 cleaning mode. In the pool wall 400 cleaning mode, the main body 10 moves to the pool wall 400. When the pool wall 400 is the first wall surface 16, the robot cannot continue to move towards the waterline 300 along the first wall surface 16. The front walking wheel 1302 and the front roller brush 15 move away from the first wall surface 16. When the pool wall 400 is the second wall surface 17, the front walking wheel 1302 and the front roller brush 15 continue to move towards the waterline 300 along the second wall surface 17 until the robot reaches the waterline 300. Along the robot's forward direction, the first wall surface 16 is a concave arc surface. The first wall surface 16 has an entry opening 161. The vertical diameter of the entry opening 161 has a maximum value of L2, and the horizontal diameter of the entry opening 161 has a maximum value of W2, where L2 > L1 and W2 > W1. The second wall surface 17 is a vertical wall.

[0133] The difference between Example 3 and Example 2 is that Example 3 does not emphasize the influence of the water absorption component 11 on the cleaning status of the pool cleaning robot. Instead, it emphasizes that the main body 10 is equipped with a detection component 105, which can detect environmental information in the pool, including information about the pool wall 400. The detection component 105 can detect and control the cleaning mode of the pool cleaning robot to achieve intelligent cleaning and further reduce energy consumption.

[0134] As an example, the detection component 105 includes a distance sensor, an image acquisition sensor, a line laser, an IMU or an odometer, etc., disposed on the main body 10. The IMU detects the robot's movement posture, or the odometer detects the robot's travel distance, so as to determine the travel distance or movement position of the pool robot.

[0135] It should be further explained that, in this embodiment, the detection component 105 is used to collect environmental information in the pool. The pool cleaning robot adjusts the movement mode and cleaning mode of the main body 10 based on the environmental information collected by the detection component 105. In this embodiment, after the detection component 105 detects the environmental information, the drive motor 1301 and the front walking wheel 1302 are both close to the front end 101 of the main body 10. The front walking wheel 1302 is connected to the first output gear 1312 through the walking wheel transmission group 141, and the front roller brush 15 is connected to the first output gear 1312 through the roller brush transmission group 142.

[0136] By defining the positions of the front roller brush 15, the drive motor 1301, and the front walking wheel 1302, and by coordinating the transmission connections between each component and the transmission assembly 14, the components at the front end 101 of the main body 10 are arranged in a compact manner, which improves the quality at the position of the front roller brush 15 compared to other positions of the pool cleaning robot.

[0137] Furthermore, in the pool wall 400 cleaning mode, after the main body 10 moves to the pool wall 400, when the pool wall 400 is the first wall surface 16, the robot cannot continue to move towards the waterline 300 along the first wall surface 16. The front walking wheel 1302 and the front roller brush 15 move away from the first wall surface 16, increasing the contact area between the front roller brush 15 and the pool wall 400. In this way, the junction of the first wall surface 16 and the pool bottom 500 can be cleaned, and the energy consumption of the cleaning robot can be effectively reduced.

[0138] Furthermore, in the pool wall 400 cleaning mode, after the main body 10 moves to the pool wall 400, when the pool wall 400 is the second wall surface 17, that is, when the pool wall 400 is a vertical wall, the drainage volume of the water absorption component 11 is reduced or closed, which can reduce the suction force at the water inlet 131 position, thereby actively controlling when the roller brush is lifted relative to the pool bottom 500. During the process of the front roller brush 15 switching from the first state 100 to the second state 200, the contact area between the front roller brush 15 and the surface to be cleaned is increased, thereby improving the cleaning effect of the pool cleaning robot on the edge of the pool bottom 500 when switching between the pool wall 400 and the pool bottom 500.

[0139] The following is a detailed description of the different cleaning states of the first wall surface 16 and the second wall surface 17 when the pool cleaning robot performs the pool wall 400 cleaning mode in Example 3.

[0140] like Figure 7 As shown, this is a schematic diagram of the state of the front roller brush 15 of the pool cleaning equipment when it is in contact with both the first wall surface 16 and the pool bottom 500. The walking component 13 continues to drive the main body 10 towards the first wall surface 16. The front roller brush 15 contacts the first wall surface 16. The detection component 105 detects information about the pool wall 400 in real time, such as the tilt angle of the pool wall 400 relative to the pool bottom 500, or the distance the main body 10 moves within the pool wall 400. The front roller brush 15 rotates at the junction of the pool bottom 500 and the first wall surface 16. Driven by the friction of the front roller brush 15, the junction of the first wall surface 16 and the pool bottom 500 can be cleaned effectively. When the front roller brush 15 rotates to the position shown... Figure 8 As shown, when the front roller brush 15 is only in contact with the first wall surface 16, the main body 10 gradually moves from the entry opening 161 formed by the first wall surface 16 to the inwardly concave arc-shaped area of ​​the first wall surface 16. Since L2 > L1 and W2 > W1, as Figure 9 In the illustrated state, after moving a distance along the first wall 16 towards the waterline 300, the pool cleaning robot can no longer move towards the waterline 300. The robot then moves away from the first wall 16. For example, the front roller brush 15 moves vertically downwards along the first wall 16, gradually moving until it is completely out of contact with the first wall 16. Thus, even when the pool cleaning robot needs to clean the first wall 16 in the pool wall 400 cleaning mode, it can ensure that at least a portion of the first wall 16 and the junction between the first wall 16 and the pool bottom 500 are effectively cleaned.

[0141] Furthermore, in the swimming pool cleaning equipment provided in this application embodiment, the first wall surface 16 has a top in the vertical direction, the top is located inside the inlet opening 161, and the distance between the top and the horizontal plane where the pool bottom 500 is located is L3, where L3 > L2.

[0142] In this embodiment, when L3 > L2, the pool cleaning robot cannot clean the arc-shaped surface between the top of the first wall 16 and the top of the entry opening 161, and the front walking wheel 1302 and the front roller brush 15 move away from the first wall 16.

[0143] The swimming pool cleaning equipment provided in this application embodiment has a gradually increasing curvature of the first wall surface 16 along the vertical upward direction.

[0144] In this embodiment, as the curvature of the first wall 16 gradually increases, the front roller brush 15 gradually moves away from the first wall 16, resulting in a decrease in the friction between the front roller brush 15 and the first wall 16. After identifying the state of the first pool wall 400, the detection component 105 can control the front walking wheel 1302 and the front roller brush 15 to move away from the first wall 16.

[0145] like Figure 10 As shown, with Figures 7-9 The difference in the cleaning state shown is that the pool wall 400 is the second wall 17, which is a vertical wall. The front roller brush 15 is in contact with the second wall 17, and the drive assembly drives the front roller brush 15 to move from the bottom of the pool 500 along the second wall 17 towards the waterline 300, thereby cleaning the second wall 17.

[0146] Example 4

[0147] A fourth aspect of this application provides a swimming pool cleaning robot that can move in water to perform cleaning. The swimming pool cleaning robot includes:

[0148] The main body 10, along the robot's forward direction, has a front end 101 and a rear end 102;

[0149] Walking assembly 13, which includes a front walking wheel 1302 near the front end 101;

[0150] A drive assembly is located near the front end 101. The drive assembly includes a drive motor 1301 and a first output gear 1312. The drive motor 1301 includes a motor rotating shaft 1311, which is connected to the first output gear 1312.

[0151] In the vertical direction, the rotation axis of the front travel wheel 1302 is located in the first plane 18, the bottom of the front travel wheel 1302 is located in the second plane 19, and the rotation axis of the first output gear 1312 is located between the first plane 18 and the second plane 19.

[0152] Transmission assembly 14, which includes a walking wheel transmission assembly 141;

[0153] The front roller brush 15 is rotatably disposed at the front end 101 and is used to clean the surface to be cleaned. The first output gear 1312 is connected to the front roller brush 15 through the roller brush transmission assembly 142. The line connecting the rotation center of the first output gear 1312, the rotation center of the front travel wheel 1302, and the rotation center of the front roller brush 15 forms three included angles, wherein the included angle with the rotation center of the front travel wheel 1302 as the vertex is the first included angle β, where β < 150°.

[0154] The difference between Example 4 and Example 1 is that Example 4 does not emphasize the impact of the water absorption component 11 and the filter component 12 on the pool cleaning robot. The relevant technologies can be referred to Example 1 or other existing technologies. In this example, no further description is given regarding the filter component 12 and the water absorption component 11. In this example, the description of the relevant states and functions of the pool cleaning robot in the pool wall 400 cleaning mode is referred to the above examples. The following is a brief description of the beneficial effects of this example compared with the prior art.

[0155] like Figure 11 as well as Figure 12 As shown, it should be further explained that in this embodiment, the drive motor 1301 and the front traveling wheel 1302 are both close to the front end 101 of the main body 10. The front traveling wheel 1302 is connected to the first output gear 1312 through the traveling wheel transmission assembly 141, and the front roller brush 15 is connected to the first output gear 1312 through the roller brush transmission assembly 142, so that the first included angle β < 150°, thereby making the front roller brush 15, the drive motor 1301, the front traveling wheel 1302, and the first output gear 1312 all concentrated in the main body 10. The front end 101 of the 0 is close to the bottom of the main body 10. The position of the front roller brush 15 and the various components at the front end 101 of the main body 10 are arranged in a compact manner. With this setting, when the robot is in the pool bottom 500 cleaning mode or the pool wall 400 cleaning mode, it can effectively prevent the front roller brush 15 from lifting relative to the pool bottom 500 in case of an accident. This helps to increase the contact area between the front roller brush 15 and the surface to be cleaned, and improve the cleaning effect of the pool cleaning robot on the edge of the pool bottom 500 when switching between the pool wall 400 and the pool bottom 500.

[0156] The following further describes some structural components that can be selectively applied to Embodiments 1, 2, 3, and 4. By setting these structural components, the cleaning effect of the pool cleaning robot described in Embodiments 1, 2, 3, and 4 will be improved.

[0157] The swimming pool cleaning equipment provided in this application embodiment includes a water suction component 11. In the pool wall 400 cleaning mode, when the current roller brush 15 is only in contact with the pool wall 400, the water suction component 11 is activated or the drainage volume of the water suction component 11 is increased.

[0158] In this embodiment, in the pool wall 400 cleaning mode, when the front roller brush 15 is only in contact with the pool wall 400, the drainage volume of the water absorption component 11 is increased, the suction force of the bottom of the robot is increased, the contact area between the front roller brush 15 and the pool wall 400 is further increased, the friction between the front roller brush 15 and the pool wall 400 is increased, thereby improving the cleaning effect of the front roller brush 15 on the pool wall 400, improving the stability of the main body 10 moving on the pool wall 400, and preventing the robot from slipping off the pool wall 400 to the bottom of the pool 500.

[0159] The swimming pool cleaning equipment provided in this application embodiment includes a transmission assembly 14 further comprising a walking wheel transmission group 141. The first output gear 1312 is connected to the front walking wheel 1302 via the walking wheel transmission group 141. The roller brush transmission group 142 includes an internal gear 1411. The first output gear 1312 is located inside the front walking wheel 1302, and the internal gear 1411 is disposed on the inner wall of the front walking wheel 1302. The first output gear 1312 meshes with the internal gear 1411 for transmission.

[0160] As shown in the figure, the first output gear 1312 is located inside the front travel wheel 1302 and meshes with the internal gear 1411 to drive the front travel wheel 1302 to rotate relative to the main body 10, thereby causing the main body 10 to move relative to it. Furthermore, the position of the first output gear 1312 can be further restricted, and the drive motor 1301 and the first output gear 1312 can be further concentrated on one side of the front travel wheel 1302, thereby improving the spatial integration effect of the front end 101 of the main body 10.

[0161] The swimming pool cleaning equipment provided in this application embodiment includes a roller brush transmission assembly 142 comprising a first external gear 1421, a second external gear 1422, and a roller brush transmission gear 1423. The first external gear 1421 is disposed on the inner side of the front traveling wheel 1302, and the front traveling wheel 1302 is coaxial and rotates in the same direction. The outer diameter of the first external gear 1421 is smaller than the inner diameter of the internal gear 1411. The roller brush transmission gear 1423 is disposed on the rotating shaft of the front roller brush 15. The second external gear 1422 is disposed between the first external gear 1421 and the roller brush transmission gear 1423, and the second external gear 1422 meshes with the first external gear 1421 and the roller brush transmission gear 1423 for transmission.

[0162] It should be further explained that the first external gear 1421, the second external gear 1422, and the roller brush transmission gear 1423 are all concentrated at the front end 101 of the main body 10, so that the rotation direction of the first output gear 1312 is the same as the rotation direction of the front roller brush 15 and the front traveling wheel 1302. That is, the first output gear 1312 rotates clockwise or counterclockwise at the same time as the front roller brush 15 and the front traveling wheel 1302. This makes it easier to control the rotation direction of the front roller brush 15 and also makes it easier for the robot to calculate the rotation direction of the front traveling wheel 1302 and measure the robot's mileage.

[0163] like Figure 2 as well as Figure 11 As shown, in the swimming pool cleaning equipment provided in this application embodiment, in the vertical direction, the rotation center of the front walking wheel 1302 is located in the first plane 18, the bottom of the front walking wheel 1302 is located in the second plane 19, the rotation center of the front walking wheel 1302, the rotation center of the second external gear 1422 and the rotation center of the roller brush transmission gear 1423 are all located between the first plane 18 and the second plane 19, and the rotation center of the first output gear 1312 is located in the first plane 18 or between the first plane 18 and the second plane 19.

[0164] It should be further explained that by bringing the front traveling wheel 1302, the second external gear 1422, the first output gear 1312, and the roller brush transmission gear 1423 closer to the second plane 19, the stability of the front end 101 of the main body 10 near the bottom position is further improved, and the front roller brush 15 is further raised.

[0165] In the swimming pool cleaning equipment provided in this application embodiment, the rotation center of the front walking wheel 1302 is located in the first plane 18 in the vertical direction, the bottom of the front walking wheel 1302 is located in the second plane 19, and the rotation center of the front walking wheel 1302, the rotation center of the second external gear 1422 and the rotation center of the roller brush transmission gear 1423 are all located between the first plane 18 and the second plane 19. In the vertical upward direction, the rotation axis of the first output gear 1312 is located above the first plane 18.

[0166] like Figure 13As shown, it should be further explained that in this embodiment, the front walking wheel 1302, the second external gear 1422, and the roller brush transmission gear 1423 are close to the second plane 19, so that the first output gear 1312 is located above the first plane 18 and is connected to the internal gear 1411 for transmission. This allows the first output gear 1312, the front roller brush 15, and the front walking wheel 1302 to rotate clockwise or counterclockwise simultaneously. This facilitates the control of the rotation direction of the front roller brush 15 and the calculation of the rotation direction of the front walking wheel 1302 by the robot, thereby measuring the robot's mileage.

[0167] The swimming pool cleaning equipment provided in this application embodiment has the first external gear 1421 and the front walking wheel 1302 integrally formed.

[0168] It should be further explained that, in this embodiment, an internal gear 1411 is provided on the inner wall of the front wheel 1302, and a first external gear 1421 is provided at the rotation center of the front wheel 1302. The first external gear 1421 is connected to the internal gear 1411 through transmission. When the first output gear 1312 drives the internal gear 1411 to rotate, the first external gear 1421 can rotate synchronously with the front wheel 1302, thereby improving the stability of the transmission component 14 during the transmission process.

[0169] The swimming pool cleaning equipment provided in this application embodiment has a first external gear 1421 that is detachably connected to the front walking wheel 1302. The roller brush transmission group 142 also includes a second output gear 1424. The second output gear 1424 and the first output gear 1312 are axially spaced on the motor rotating shaft 1311 along the rotating shaft of the drive motor 1301. The first output gear 1312 and the second output gear 1424 rotate in the same direction. The second output gear 1424 is connected to the first external gear 1421 in a transmission connection.

[0170] like Figure 13 As shown, it should be further explained that in this embodiment, the front walking wheel 1302 is detachably connected to the first external gear 1421. When the front walking wheel 1302 needs maintenance, it is not necessary to disassemble the first external gear 1421, which improves the convenience of maintaining the walking component 13. The second output gear 1424 is connected to the first external gear 1421 through transmission, so that the first output gear 1312, the front roller brush 15 and the front walking wheel 1302 rotate clockwise or counterclockwise at the same time. This makes it convenient to control the rotation direction of the front roller brush 15, and at the same time, it makes it convenient for the robot to calculate the rotation direction of the front walking wheel 1302 and measure the robot's mileage.

[0171] In this embodiment, the pool cleaning equipment includes a main body 10, a water absorption component 11, a filter component 12, a walking component 13, a transmission component 14, and a front roller brush 15. The walking component 13 includes front walking wheels 1302. The drive component and the front walking wheels 1302 are positioned near the front end 101 of the main body 10. The front roller brush 15 has a first state 100 and a second state 200. In the robot pool wall 400 cleaning mode, when the main body 10 moves to the pool wall 400, the drainage volume of the water absorption component 11 decreases or is turned off until the walking component 13 drives the front roller brush 15 to switch from the first state 100 to the second state 200. Compared with the prior art, the pool cleaning equipment provided in this application can increase the effective filtration space of the filter component 12, prevent the front roller brush 15 from tilting its head when it encounters the pool wall 400, and increase the contact area between the front roller brush 15 and the surface to be cleaned when the pool cleaning robot switches from the pool bottom 500 to the pool wall 400, thereby improving the overall cleaning effect of the pool cleaning robot.

[0172] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0173] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0174] In the description of this application, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or apparatus.

[0175] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0176] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A swimming pool cleaning robot characterized by, The pool cleaning robot can move and clean in water, and the pool cleaning robot includes: The main body (10), along the forward direction of the pool cleaning robot, has a front end (101) and a rear end (102), the main body (10) has a shell (103) and a receiving cavity (104), the shell (103) has an inlet (131) communicating with the receiving cavity (104), and the inlet (131) is located on the lower surface of the shell (103); Water absorption component (11); A filter assembly (12) is disposed in the receiving cavity (104). The filter assembly (12) has a filter cavity (121) and a dust port (122). The dust port (122) is connected to the water inlet (131) and the filter cavity (121). The water suction assembly (11) is used to draw water flow, so that the water flow containing impurities passes through the water inlet (131) and the dust port (122) and is discharged to the outside of the housing (103) after being filtered by the filter cavity (121). The walking assembly (13) includes a front walking wheel (1302) which is rotatably disposed at the front end (101); A drive assembly is located near the front end (101). The drive assembly includes a drive motor (1301) and a first output gear (1312). The drive motor (1301) includes a motor rotating shaft (1311) connected to the first output gear (1312). A front roller brush (15) is rotatably disposed at the front end (101). The front roller brush (15) is used to clean the surface to be cleaned. The front roller brush (15) includes a first state (100) and a second state (200). In the first state (100), the front roller brush (15) abuts against the pool wall (400) and the pool bottom. In the second state (200), the front roller brush (15) abuts only against the pool wall (400). The transmission assembly (14) includes at least a roller brush transmission group (142); the first output gear (1312) is connected to the front roller brush (15) through the roller brush transmission group (142) so that the drive assembly drives the front roller brush (15) to rotate in the water. The robot includes a pool wall cleaning mode. In the pool wall cleaning mode, the main body (10) moves to the pool wall (400), the water absorption component (11) reduces the drainage volume or turns off the water absorption component (11) until the drive component drives the front roller brush (15) to switch from the first state (100) to the second state (200), and the drive component drives the front roller brush (15) to move along the pool wall toward the waterline position.

2. A swimming pool cleaning robot characterized by, The pool cleaning robot can move and clean in water, and the pool cleaning robot includes: The main body (10), along the forward direction of the pool cleaning robot, has a front end (101) and a rear end (102), the main body (10) has a shell (103) and a receiving cavity (104), the shell (103) has an inlet (131) communicating with the receiving cavity (104), and the inlet (131) is located on the lower surface of the shell (103); A water-absorbing assembly (11) is used to draw water flow from the inlet (131) into the receiving cavity (104) and then discharge it to the outside of the housing (103); The walking assembly (13) includes a front walking wheel (1302) which is rotatably disposed at the front end (101); A drive assembly is located near the front end (101). The drive assembly includes a drive motor (1301) and a first output gear (1312). The drive motor (1301) includes a motor rotating shaft (1311) connected to the first output gear (1312). A front roller brush (15) is rotatably disposed at the front end (101). The front roller brush (15) is used to clean the surface to be cleaned. The front roller brush (15) includes a first state (100) and a second state (200). In the first state (100), the front roller brush (15) abuts against the pool wall (400) and the pool bottom. In the second state (200), the front roller brush (15) abuts only against the pool wall (400). The transmission assembly (14) includes at least a roller brush transmission group (142); the first output gear (1312) is connected to the front roller brush (15) through the roller brush transmission group (142) so that the drive assembly drives the front roller brush to rotate in the water. The robot includes a pool wall cleaning mode. In the pool wall cleaning mode, the main body (10) moves to the pool wall (400), the water absorption component (11) reduces the drainage volume or turns off the water absorption component (11) until the drive component drives the front roller brush (15) to switch from the first state (100) to the second state (200), and the drive component drives the front roller brush (15) to move along the pool wall toward the waterline position.

3. A swimming pool cleaning robot characterized by, The pool cleaning robot can move and clean in water, and the pool cleaning robot includes: The main body (10) has a front end (101) and a rear end (102), and the main body (10) is provided with a detection component (105). The detection component (105) is used to detect environmental information, including the wall information of the pool wall (400). In the horizontal direction, the length of the pool cleaning robot is L1, and in the vertical direction, the width of the pool cleaning robot is W1. The walking assembly (13) includes a front walking wheel (1302) disposed near the front end (101); A drive assembly is located near the front end (101). The drive assembly includes a drive motor (1301) and a first output gear (1312). The drive motor (1301) includes a motor rotating shaft (1311) connected to the first output gear (1312). The transmission assembly (14) includes a roller brush transmission assembly (142); A front roller brush (15) is rotatably disposed at the front end (101). The front roller brush (15) assembly is used to clean the surface to be cleaned. The first output gear (1312) is connected to the front roller brush (15) through the roller brush transmission assembly (142) so that the drive assembly drives the front roller brush (15) to rotate in the water. The pool cleaning robot includes the pool wall In the cleaning mode, the main body (10) moves to the pool wall (400). When the pool wall (400) is the first wall surface (16), and the pool cleaning robot cannot continue to move towards the waterline (300) along the first wall surface (16), the front walking wheel (1302) and the front roller brush (15) move away from the first wall surface (16). When the pool wall (400) is the second wall surface (17), the front walking wheel (1302) and the front roller brush (15) move away from the first wall surface (16). 15) Continue moving along the second wall (17) toward the waterline (300) until the pool cleaning robot reaches the waterline (300). Along the direction of movement of the pool cleaning robot, the first wall (16) is a concave arc surface. The first wall (16) has an entry opening (161). The vertical diameter of the entry opening (161) is a maximum value of L2. The horizontal diameter of the entry opening (161) is a maximum value of W2, L2 > L1, W2 > W1. The second wall (17) is a vertical wall.

4. A swimming pool cleaning robot characterized by, The pool cleaning robot can move and clean in water, and the pool cleaning robot includes: The main body (10), along the forward direction of the pool cleaning robot, has a front end (101) and a rear end (102); The walking assembly (13) includes a front walking wheel (1302) located near the front end (101); A drive assembly is located near the front end (101). The drive assembly includes a drive motor (1301) and a first output gear (1312). The drive motor (1301) includes a motor rotating shaft (1311) connected to the first output gear (1312). In the vertical direction, the rotation axis of the front walking wheel (1302) is located in the first plane (18), the bottom of the front walking wheel (1302) is located in the second plane (19), and the rotation axis of the first output gear (1312) is located between the first plane (18) and the second plane (19). The transmission assembly (14) includes a roller brush transmission assembly (142); A front roller brush (15) is rotatably disposed at the front end (101) and used to clean the surface to be cleaned. The first output gear (1312) is connected to the front roller brush (15) through the roller brush transmission assembly (142) so that the drive assembly drives the front roller brush (15) to rotate in the water. The line connecting the rotation center of the first output gear (1312), the rotation center of the front walking wheel (1302), and the rotation center of the front roller brush (15) forms three included angles, wherein the included angle with the rotation center of the front walking wheel (1302) as the vertex is the first included angle β, where β < 150°.

5. The swimming pool cleaning robot according to any one of claims 1-4, wherein, The pool cleaning robot also includes a water suction component (11). The pool cleaning robot has a pool wall cleaning mode. In the pool wall cleaning mode, when the current roller brush (15) is only in contact with the pool wall (400), the water suction component (11) is activated or the drainage volume of the water suction component (11) is increased.

6. The swimming pool cleaning robot of any one of claims 1-4, wherein, The transmission assembly (14) further includes a walking wheel transmission group (141). The first output gear (1312) is connected to the front walking wheel (1302) through the walking wheel transmission group (141). The roller brush transmission group (142) includes an internal gear (1411). The first output gear (1312) is located inside the front walking wheel (1302). The internal gear (1411) is disposed on the inner wall of the front walking wheel (1302). The first output gear (1312) meshes with the internal gear (1411) for transmission.

7. The swimming pool cleaning robot of claim 6, wherein, The roller brush drive assembly (142) includes a first external gear (1421), a second external gear (1422), and a roller brush drive gear (1423). The first external gear (1421) is disposed on the inner side of the front traveling wheel (1302), and the front traveling wheel (1302) is coaxial and rotates in the same direction. The outer diameter of the first external gear (1421) is smaller than the inner diameter of the internal gear (1411). The roller brush drive gear (1423) is disposed on the rotating shaft of the front roller brush (15). The second external gear (1422) is disposed between the first external gear (1421) and the roller brush drive gear (1423). The second external gear (1422) meshes with the first external gear (1421) and the roller brush drive gear (1423) for transmission.

8. The swimming pool cleaning robot of claim 7, wherein, In the vertical direction, the rotation center of the front traveling wheel (1302) is located in the first plane (18), the bottom of the front traveling wheel (1302) is located in the second plane (19), the rotation center of the front traveling wheel (1302), the rotation center of the second external gear (1422) and the rotation center of the roller brush transmission gear (1423) are all located between the first plane (18) and the second plane (19), and the rotation center of the first output gear (1312) is located in the first plane (18) or between the first plane (18) and the second plane (19).

9. The swimming pool cleaning robot of claim 7, wherein, In the vertical direction, the rotation center of the front traveling wheel (1302) is located in the first plane (18), the bottom of the front traveling wheel (1302) is located in the second plane (19), the rotation center of the front traveling wheel (1302), the rotation center of the second external gear (1422) and the rotation center of the roller brush transmission gear (1423) are all located between the first plane (18) and the second plane (19), and in the vertical upward direction, the rotation axis of the first output gear (1312) is located above the first plane (18).

10. The swimming pool cleaning robot of claim 7, wherein, The first external gear (1421) and the front traveling wheel (1302) are integrally formed.

11. The swimming pool cleaning robot of claim 7, wherein, The first external gear (1421) is detachably connected to the front traveling wheel (1302). The roller brush transmission assembly (142) (14) further includes a second output gear (1424). The second output gear (1424) and the first output gear (1312) are axially spaced on the motor rotating shaft (1311) along the rotating shaft of the drive motor (1301). The first output gear (1312) and the second output gear (1424) rotate in the same direction. The second output gear (1424) is connected to the first external gear (1421) in a transmission connection.

12. The swimming pool cleaning robot of claim 3, wherein, In the vertical direction, the first wall (16) has a top, the top of the first wall (16) is located inside the entrance opening (161), and the distance between the top of the first wall (16) and the horizontal plane where the bottom of the pool is located is L3, where L3 > L2.

13. The swimming pool cleaning robot of claim 3 or claim 12, wherein, Along the vertically upward direction, the curvature of the first wall (16) gradually increases.

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