Pool cleaning robot

Abstract

The pool cleaning robot comprises a shell, the shell is provided with an opening, a filtering cavity and a liquid channel which are sequentially communicated, the pool cleaning robot moves in the horizontal direction, the shell is provided with a first side face and a second side face which are oppositely arranged in the moving direction of the pool cleaning robot, and the first side face is provided with an opening and a front drainage opening; the second side face is provided with a rear water outlet. The liquid channel is communicated with the front water outlet and the rear water outlet. The pump body is arranged in the liquid channel; wherein the pool cleaning robot has an advancing mode and a retreating mode, when the pool cleaning robot is in the advancing mode, the pump body guides liquid in the liquid channel to the rear drainage opening, and when the pool cleaning robot is in the retreating mode, the pump body rotates in the second direction opposite to the first direction, and the liquid in the liquid channel is guided to the front drainage opening. The pool cleaning robot provided by the embodiment of the utility model has the advantages of wide cleaning range and more use scenes.

Description

[0001] This application claims the priority of the Chinese patent application No. 202311596036.6, titled "Surface Cleaning Robot", filed by "Tianjin Wangyuan Intelligent Technology Co., Ltd." on November 27, 2023. Technical Field

[0002] This application relates to the technical field of pool cleaning, and in particular to a pool cleaning robot. Background Art

[0003] In the related art, pool cleaning robots usually have rollers, and the moving direction of the pool cleaning robot is controlled by controlling the rolling direction of the rollers, resulting in that the pool cleaning robot must sink to the bottom of the liquid to be cleaned, and the cleaning range and the usage environment are limited. Summary of the Utility Model

[0004] This application aims to solve at least one of the technical problems existing in the prior art. To this end, an object of this application is to provide a pool cleaning robot, which has the advantages of a wide cleaning range and more usage scenarios.

[0005] To achieve the above object, according to an embodiment of this application, a pool cleaning robot is provided, including: a housing, the housing is provided with an opening, a filtering chamber and a liquid channel that are sequentially communicated, the pool cleaning robot moves in a horizontal direction, the housing has a first side and a second side that are oppositely arranged in the moving direction of the pool cleaning robot, the first side is provided with the opening and a front drain port, the second side is provided with a rear drain port, and the liquid channel is respectively communicated with the front drain port and the rear drain port; a pump body, the pump body is arranged in the liquid channel; wherein, the pool cleaning robot has a forward mode and a reverse mode, when the pool cleaning robot is in the forward mode, the pump body guides the liquid in the liquid channel to the rear drain port, when the pool cleaning robot is in the reverse mode, the pump body rotates in a second direction opposite to the first direction, and guides the liquid in the liquid channel to the front drain port.

[0006] In some embodiments of this application, the pump body includes: an impeller, the rotation axis of the impeller extends along the moving direction of the pool cleaning robot, when the pool cleaning robot is in the forward mode, the impeller rotates in a first direction, when the pool cleaning robot is in the reverse mode, the impeller rotates in a second direction, and the first direction is opposite to the second direction.

[0007] In some embodiments of the present application, the filtration chamber and the liquid channel are selectively communicated through a front water inlet or a rear water inlet. Both the front water inlet and the rear water inlet are communicated with the liquid channel. The front water inlet is located between the impeller and the first side surface, and the rear water inlet is located between the impeller and the second side surface. Wherein, when the pool cleaning robot is in the forward mode, the front water inlet is communicated with the filtration chamber, and the rear water inlet is disconnected from the filtration chamber; when the pool cleaning robot is in the reverse mode, the front water inlet is disconnected from the filtration chamber, and the rear water inlet is communicated with the filtration chamber.

[0008] In some embodiments of the present application, the distance between the front water inlet and the first side surface is greater than the distance between the front water inlet and the second side surface, and the distance between the rear water inlet and the first side surface is greater than the distance between the rear water inlet and the second side surface; and / or the side wall of the liquid channel facing the filtration chamber in the horizontal direction has an inclined section, and the inclined section is inclined with respect to the rotation axis of the impeller, and the rotation axis of the impeller passes through the inclined section.

[0009] In some embodiments of the present application, baffles are provided at the front water inlet and the rear water inlet, and the baffles are rotatably connected to the housing between an open position and a closed position; when the baffle is in the open position, the liquid channel and the filtration chamber are communicated through the front water inlet or the rear water inlet corresponding to the baffle; when the baffle is in the closed position, it prevents the liquid channel and the filtration chamber from being communicated through the front water inlet or the rear water inlet corresponding to the baffle.

[0010] In some embodiments of the present application, the housing is provided with a plurality of the liquid channels, the plurality of liquid channels are arranged at intervals, and the arrangement direction of the plurality of liquid channels, the moving direction of the housing, and the vertical direction are perpendicular to each other; the plurality of liquid channels include a first liquid channel and a second liquid channel, and the first liquid channel and the second liquid channel are respectively arranged on opposite sides of the filtration chamber.

[0011] In some embodiments of the present application, the pool cleaning robot has a first steering mode and a second steering mode. When the pool cleaning robot is in the first steering mode, the impeller in the first liquid channel rotates in the first direction, and the impeller in the second liquid channel rotates in the second direction. When the pool cleaning robot is in the second steering mode, the impeller in the first liquid channel rotates in the second direction, and the impeller in the second liquid channel rotates in the first direction.

[0012] In some embodiments of the present application, the front water inlet includes a first front water inlet and a second front water inlet, the rear water inlet includes a first rear water inlet and a second rear water inlet, the first front water inlet and the first rear water inlet are both communicated with the first liquid channel, and the second front water inlet and the second rear water inlet are both communicated with the second liquid channel; wherein, when the pool cleaning robot is in the first turning mode, the first front water inlet is communicated with the filtering cavity, the first rear water inlet is disconnected from the filtering cavity, the second front water inlet is disconnected from the filtering cavity, and the second rear water inlet is communicated with the filtering cavity; when the pool cleaning robot is in the second turning mode, the first front water inlet is disconnected from the filtering cavity, the first rear water inlet is communicated with the filtering cavity, the second front water inlet is communicated with the filtering cavity, and the second rear water inlet is disconnected from the filtering cavity.

[0013] In some embodiments of the present application, the first front water inlet, the second front water inlet, the first rear water inlet, and the second rear water inlet are located between the first liquid channel and the second liquid channel.

[0014] In some embodiments of the present application, the liquid channel is located below the filtering cavity; and / or the pool cleaning robot further includes: a filtering device, the filtering device is slidably disposed in the filtering device, at least one of the housing and the filtering device is provided with a filter screen, the filter screen covers the liquid channel, and is used for filtering the liquid flowing from the filtering cavity to the liquid channel.

[0015] In some embodiments of the present application, the pool cleaning robot further includes: a traveling device, which is rotatably disposed on the housing and is used for contacting the bottom wall of the pool.

[0016] The pool cleaning robot according to the embodiment of the present application realizes the switching between the forward state and the backward state by controlling the discharge direction of the liquid in the housing, has a wide cleaning range, and can be applied to more usage scenarios.

[0017] Some additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of the pool cleaning robot according to the embodiment of the present application with the opening in an open state;

[0020] Figure 2It is a schematic structural diagram of the pool cleaning robot according to an embodiment of the present application with the opening in a closed state;

[0021] Figure 3 It is a schematic structural diagram of the housing of the pool cleaning robot according to an embodiment of the present application;

[0022] Figure 4 It is a schematic structural diagram of the impeller, front drain port and rear drain port of the pool cleaning robot according to an embodiment of the present application;

[0023] Figure 5 It is a schematic structural diagram of the filtering device of the pool cleaning robot according to an embodiment of the present application.

[0024] Reference numerals:

[0025] Pool cleaning robot 1,

[0026] Housing 100, first side 101, second side 102, first side edge 103, second side edge 104, installation cavity 105, outer shell 110, accommodation cavity 111, liquid channel 112, inclined section 113, first liquid channel 114, second liquid channel 115, front protruding part 116, rear protruding part 117, filtering device 120, opening 121, filtering cavity 122, limiting block 123, shaft hole 124, impeller 140, front water inlet 150, first front water inlet 151, second front water inlet 152, rear water inlet 160, first rear water inlet 161, second rear water inlet 162, anti-collision block 170, front drain port 180, rear drain port 190,

[0027] Floating plate assembly 200, first side 201, second side 202, floating plate frame 210, first cross beam 211, second cross beam 212, first vertical beam 213, second vertical beam 214, third vertical beam 215, rotating shaft 230, through hole 240,

[0028] Photovoltaic cell 300, obstacle 400. Detailed implementation manners

[0029] The embodiments of the present application will be described in detail below. The embodiments described with reference to the drawings are exemplary. The embodiments of the present application will be described in detail below.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0031] In the description of the present application, the meaning of "a plurality of" is two or more.

[0032] The pool cleaning robot 1 according to an embodiment of the present application will be described below with reference to the drawings.

[0033] As Figures 1-4 shown, the pool cleaning robot 1 according to an embodiment of the present application includes a housing 100 and a pump body.

[0034] The housing 100 is provided with an opening 121, a filtration chamber 122, and a liquid passage 112 that are sequentially communicated. The pool cleaning robot 1 moves in the horizontal direction. The housing 100 has a first side surface 101 and a second side surface 102 that are oppositely arranged in the moving direction of the pool cleaning robot 1. The first side surface 101 is provided with the opening 121 and a front drain port 180, and the second side surface 102 is provided with a rear drain port 190. The liquid passage 112 is respectively communicated with the front drain port 180 and the rear drain port 190. The pump body is disposed in the liquid passage 112.

[0035] Among them, the pool cleaning robot 1 has a forward mode and a reverse mode. When the pool cleaning robot 1 is in the forward mode, the pump body guides the liquid in the liquid passage 112 to the rear drain port 190. When the pool cleaning robot 1 is in the reverse mode, the pump body rotates in a second direction opposite to the first direction, and guides the liquid in the liquid passage 112 to the front drain port 180.

[0036] The above-mentioned pump body includes an impeller 140. The rotation axis of the impeller 140 extends along the moving direction of the pool cleaning robot 1. When the pool cleaning robot 1 is in the forward mode, the impeller 140 rotates in the first direction. When the pool cleaning robot 1 is in the reverse mode, the impeller 140 rotates in the second direction. The first direction and the second direction are opposite to each other.

[0037] By changing the rotation direction of the impeller 140, the flow direction of the liquid in the liquid channel 112 can be changed, that is, the liquid in the liquid channel 112 is guided to flow to the front drain port 180 or the rear drain port 190. There is no need to set a structure for opening and closing the front drain port 180 or the rear drain port 190. The structure is simpler, the number of parts is small, and the cost of use is reduced. The pool cleaning robot 1 can clean the water surface, the bottom of the pool and the middle area of the pool. The pool cleaning robot 1 has the advantages of wide application range and the like.

[0038] In addition, the pool cleaning robot 1 may include a walking device rotatably mounted on the housing 100 for contacting the bottom wall of the pool. The walking device may be a structure such as rollers or tracks. When the pool cleaning robot 1 sinks to the bottom of the pool, the walking device contacts the bottom wall of the pool.

[0039] For example, the pool cleaning robot 1 may not be provided with a driving structure for the walking device. The reaction force of the liquid discharged from the liquid channel 112 drives the pool cleaning robot 1 to move relative to the bottom wall of the pool. At this time, the walking device rotates relative to the housing 100, which not only ensures that the pool cleaning robot 1 does not separate from the bottom wall of the pool, but also reduces the friction between the pool cleaning robot 1 and the bottom wall of the pool, thereby improving the movement efficiency of the pool cleaning robot 1 and further improving the cleaning efficiency of the pool cleaning robot 1 on the bottom wall of the pool.

[0040] Alternatively, the pool cleaning robot 1 may be provided with a driving structure for the walking device, so that the pool cleaning robot 1 can move more efficiently on the bottom wall of the pool, and the pool cleaning robot 1 can more effectively improve the cleaning efficiency of the bottom wall of the pool.

[0041] The sidewall of the liquid channel 112 facing the filter chamber 122 in the horizontal direction has an inclined section 113. The inclined section 113 is arranged at an angle relative to the rotation axis of the impeller 140, and the rotation axis of the impeller 140 passes through the inclined section 113. In this way, the impeller 140 can be fixed by the sidewall of the liquid channel 112 without the need for additional fixing structure, resulting in a small number of parts and a simple structure.

[0042] Specifically, the inclined section 113 can be configured to be arc-shaped, which protrudes horizontally toward the filter cavity 122 to increase the volume of the liquid channel 112 , thereby reducing the flow resistance of the liquid and improving the guiding effect.

[0043] The above-mentioned filter chamber 122 and the liquid channel 112 can be selectively connected through the front water inlet 150 or the rear water inlet 160. The front water inlet 150 and the rear water inlet 160 are both connected to the liquid channel 112. The front water inlet 150 is located between the impeller 140 and the first side 101, and the rear water inlet 160 is located between the impeller 140 and the second side 102.

[0044] When the pool cleaning robot 1 is in the forward mode, the front water inlet 150 communicates with the filtration chamber 122, and the rear water inlet 160 is disconnected from the filtration chamber 122; when the pool cleaning robot 1 is in the reverse mode, the front water inlet 150 is disconnected from the filtration chamber 122, and the rear water inlet 160 communicates with the filtration chamber 122.

[0045] That is to say, when the pool cleaning robot 1 is in the forward mode, the liquid to be cleaned in the filtration chamber 122 flows into the liquid channel 112 through the front water inlet 150, and under the guidance of the impeller 140, it is then discharged from the rear drain port 190 out of the housing 100. Since the front water inlet 150 is located on the front side of the impeller 140 and the rear drain port 190 is located on the rear side of the impeller 140, when the impeller 140 rotates, the liquid on the front side of the impeller 140 is continuously guided to the rear of the impeller 140, and the liquid flowing in from the front water inlet 150 can be timely supplemented to the front side of the impeller 140, making the liquid flow in the liquid channel 112 more smooth, accelerating the flow rate of the liquid in the liquid channel 112, and ensuring the forward speed of the pool cleaning robot 1;

[0046] When the pool cleaning robot 1 is in the reverse mode, the liquid to be cleaned in the filtration chamber 122 flows into the liquid channel 112 through the rear water inlet 160, and under the guidance of the impeller 140, it is then discharged from the front drain port 180 out of the housing 100. Since the rear water inlet 160 is located on the rear side of the impeller 140 and the front drain port 180 is located on the front side of the impeller 140, the liquid on the rear side of the impeller 140 is continuously guided to the front of the impeller 140, and the liquid flowing in from the rear water inlet 160 can be timely supplemented to the rear side of the impeller 140, making the liquid flow in the liquid channel 112 more smooth, accelerating the flow rate of the liquid in the liquid channel 112, and ensuring the reverse speed of the pool cleaning robot 1.

[0047] Specifically, on the side of the liquid channel 112 facing the filtration chamber 122, there are protruding front protruding parts 116 and rear protruding parts 117. The front protruding part 116 communicates with the front water inlet 150, and the rear protruding part 117 communicates with the rear water inlet 160 to increase the volume of the liquid channel 112, and the inclined section 113 is configured as a part of the front protruding part 116.

[0048] As Figure 3 shown, the distance between the above-mentioned front water inlet 150 and the first side surface 101 is greater than the distance between the front water inlet 150 and the second side surface 102, and the distance between the rear water inlet 160 and the first side surface 101 is greater than the distance between the rear water inlet 160 and the second side surface 102.

[0049] That is to say, both the front water inlet 150 and the rear water inlet 160 are relatively far away from the opening 121. In this way, the liquid to be cleaned entering the filtration chamber 122 from the opening 121 has a long flow path in the filtration chamber 122, avoiding the accumulation of garbage in the liquid to be cleaned near the opening 121 and affecting the subsequent inflow of the liquid to be cleaned into the filtration chamber 122, and making full use of the space in the filtration chamber 122 to store garbage.

[0050] As Figure 4 shown, the above-mentioned housing 100 is provided with a plurality of liquid channels 112. The plurality of liquid channels 112 are arranged at intervals, and the arrangement direction of the plurality of liquid channels 112, the moving direction of the housing 100, and the vertical direction are perpendicular to each other. The plurality of liquid channels 112 include a first liquid channel 114 and a second liquid channel 115, and the first liquid channel 114 and the second liquid channel 115 are respectively arranged on opposite sides of the filtration chamber 122.

[0051] By providing a plurality of liquid channels 112, pumps can be provided in the plurality of liquid channels 112. When the plurality of pumps operate simultaneously, the driving force for the pool cleaning robot 1 is greater, thereby increasing the moving speed of the pool cleaning robot 1 in the forward state and the backward state.

[0052] In addition, the plurality of liquid channels 112 are arranged in the horizontal direction, which can reduce the size of the housing 100 in the vertical direction, thereby reducing the size of the pool cleaning robot 1 in the vertical direction, and increasing the size of the housing 100 in the horizontal direction, that is, increasing the size of the opening 121 in the horizontal direction, which is beneficial to improving the cleaning speed of the pool cleaning robot 1 for the garbage on the liquid surface.

[0053] As Figure 3 and Figure 4 shown, the above-mentioned pool cleaning robot 1 has a first steering mode and a second steering mode. When the pool cleaning robot 1 is in the first steering mode, the impeller 140 in the first liquid channel 114 rotates in the first direction, and the impeller 140 in the second liquid channel 11,5 rotates in the second direction. When the pool cleaning robot 1 is in the second steering mode, the impeller 140 in the first liquid channel 114 rotates in the second direction, and the impeller 140 in the second liquid channel 115 rotates in the first direction.

[0054] It should be noted that the impeller 140 in the first liquid channel 114 can be a positive propeller, and the impeller 140 in the second liquid channel 115 can be a reverse propeller, or the impeller 140 in the first liquid channel 114 can be a reverse propeller, and the impeller 140 in the second liquid channel 115 can be a positive propeller. Therefore, the first direction of the impeller 140 in the first liquid channel 114 and the first direction of the impeller 140 in the second liquid channel 115 can be opposite to each other, and the second direction of the impeller 140 in the first liquid channel 114 and the second direction of the impeller 140 in the second liquid channel 115 can be opposite to each other.

[0055] For example, when observing from the first side 101 towards the second side 102, the impeller 140 in the first liquid channel 114 rotates clockwise as its first direction, and the impeller 140 in the first liquid channel 114 rotates counterclockwise as its second direction. The impeller 140 in the second liquid channel 115 rotates counterclockwise as its first direction, and the impeller 140 in the second liquid channel 115 rotates clockwise as its second direction;

[0056] Or when observing from the first side 101 towards the second side 102, the impeller 140 in the first liquid channel 114 rotates counterclockwise as its first direction, and the impeller 140 in the first liquid channel 114 rotates clockwise as its second direction. The impeller 140 in the second liquid channel 115 rotates clockwise as its first direction, and the impeller 140 in the second liquid channel 115 rotates counterclockwise as its second direction.

[0057] In this way, the driving force of the pool cleaning robot 1 is more balanced, avoiding problems such as deflection of the pool cleaning robot 1.

[0058] Specifically, when the pool cleaning robot 1 is in the first steering mode, the impeller 140 in the first liquid channel 114 rotates in the first direction, and the liquid in the first liquid channel 114 is discharged from the rear drain port 190. That is to say, the side of the pool cleaning robot 1 close to the first liquid channel 114 moves forward. The impeller 140 in the second liquid channel 115 rotates in the second direction, and the liquid in the second liquid channel 115 is discharged from the front drain port 180. That is to say, the side of the pool cleaning robot 1 close to the second liquid channel 115 moves backward, thus realizing the steering of the pool cleaning robot 1.

[0059] When the pool cleaning robot 1 is in the second steering mode, the impeller 140 in the second liquid channel 115 rotates in the second direction, and the liquid in the second liquid channel 115 is discharged from the rear drain port 190. That is to say, the side of the pool cleaning robot 1 close to the second liquid channel 115 moves forward. The impeller 140 in the first liquid channel 114 rotates in the first direction, and the liquid in the first liquid channel 114 is discharged from the front drain port 180. That is to say, the side of the pool cleaning robot 1 close to the first liquid channel 114 moves backward, thus realizing the steering of the pool cleaning robot 1.

[0060] Among them, when the pool cleaning robot 1 is in the first steering mode, it can turn left (or right), and when the pool cleaning robot 1 is in the second steering mode, it can turn right (or left).

[0061] In this way, the pool cleaning robot 1 can not only move in a straight line (i.e., forward and backward), but also turn. The user cannot manually change the moving direction of the pool cleaning robot 1. The automation degree of the pool cleaning robot 1 is higher, which is beneficial to expanding the cleaning area of the liquid surface and achieving a better cleaning effect.

[0062] As Figure 3 and Figure 4 shown, the above-mentioned front water inlet 150 includes a first front water inlet 151 and a second front water inlet 152, and the rear water inlet 160 includes a first rear water inlet 161 and a second rear water inlet 162. The first front water inlet 151 and the first rear water inlet 161 are both communicated with the first liquid channel 114, and the second front water inlet 152 and the second rear water inlet 162 are both communicated with the second liquid channel 115.

[0063] Wherein, when the pool cleaning robot 1 is in the first turning mode, the first front water inlet 151 is communicated with the filtering cavity 122, the first rear water inlet 161 is disconnected from the filtering cavity 122, the second front water inlet 152 is disconnected from the filtering cavity 122, and the second rear water inlet 162 is communicated with the filtering cavity 122;

[0064] When the pool cleaning robot 1 is in the second turning mode, the first front water inlet 151 is disconnected from the filtering cavity 122, the first rear water inlet 161 is communicated with the filtering cavity 122, the second front water inlet 152 is communicated with the filtering cavity 122, and the second rear water inlet 162 is disconnected from the filtering cavity 122.

[0065] That is to say, the first front water inlet 151 is communicated with the first liquid channel 114 but not with the second liquid channel 115, and the first rear water inlet 161 is communicated with the first liquid channel 114 but not with the second liquid channel 115. The second front water inlet 152 is communicated with the second liquid channel 115 but not with the first liquid channel 114, and the second rear water inlet 162 is communicated with the second liquid channel 115 but not with the first liquid channel 114.

[0066] For example, the pool cleaning robot 1 is provided with a baffle, the baffle is rotatably connected to the housing 100, and the baffle is rotatable between an open position and a closed position. During the process of the baffle rotating from the closed position to the open position, the baffle gradually moves into the liquid channel, that is to say, the baffle gradually moves away from the filtering cavity 122; during the process of the baffle rotating from the open position to the closed position, the baffle gradually moves towards the direction of the filtering cavity 122 until the baffle is blocked by the filtering device 120 or the housing 100, so as to prevent the baffle from entering the filtering cavity 122.

[0067] Wherein, baffles are provided at the front water inlet 150 and the rear water inlet 160.

[0068] When the pool cleaning robot 1 is in the forward mode, under the guidance of the impeller 140, the liquid in the liquid channel 112 is discharged from the rear drain port 190 out of the housing 100. The pressure in the liquid channel 112 decreases at the front water inlet 150. Under the pressure of the liquid in the filter chamber 122, the baffle at the front water inlet 150 moves into the liquid channel 112. The filter chamber 122 is communicated with the liquid channel 112 through the front water inlet 150. The pressure in the liquid channel 112 increases at the rear water inlet 160. The baffle at the rear water inlet 160 is fixed in the closed position under the pressure of the liquid in the liquid channel 112 to prevent the filter chamber 122 from being communicated with the liquid channel 112 through the rear water inlet 160;

[0069] When the pool cleaning robot 1 is in the reverse mode, under the guidance of the impeller 140, the liquid in the liquid channel 112 is discharged from the front drain port 180 out of the housing 100. The pressure in the liquid channel 112 decreases at the rear water inlet 160. Under the pressure of the liquid in the filter chamber 122, the baffle at the rear water inlet 160 moves into the liquid channel 112. The filter chamber 122 is communicated with the liquid channel 112 through the rear water inlet 160. The pressure in the liquid channel 112 increases at the front water inlet 150. The baffle at the front water inlet 150 is fixed in the closed position under the pressure of the liquid in the liquid channel 112 to prevent the filter chamber 122 from being communicated with the liquid channel 112 through the front water inlet 150;

[0070] When the pool cleaning robot 1 is in the first turning mode, the first liquid channel 114 discharges from the rear drain port 190 out of the housing 100. The pressure in the liquid channel 112 decreases at the first front water inlet 151. Under the pressure of the liquid in the filter chamber 122, the baffle at the first front water inlet 151 moves into the first liquid channel 114. The filter chamber 122 is communicated with the first liquid channel 114 through the first front water inlet 151. The pressure in the liquid channel 112 increases at the first rear water inlet 161. The baffle at the first rear water inlet 161 is fixed in the closed position under the pressure of the liquid in the first liquid channel 114 to prevent the filter chamber 122 from being communicated with the first liquid channel 114 through the first rear water inlet 161. The second liquid channel 115 discharges from the front drain port 180 out of the housing 100. The pressure in the liquid channel 112 decreases at the second rear water inlet 162. Under the pressure of the liquid in the filter chamber 122, the baffle at the second rear water inlet 162 moves into the second liquid channel 115. The filter chamber 122 is communicated with the second liquid channel 115 through the second rear water inlet 162. The pressure in the liquid channel 112 increases at the second front water inlet 152. The baffle at the second front water inlet 152 is fixed in the closed position under the pressure of the liquid in the second liquid channel 115 to prevent the filter chamber 122 from being communicated with the second liquid channel 115 through the second front water inlet 152;

[0071] When the pool cleaning robot 1 is in the second steering mode, the first liquid channel 114 discharges from the front drain port 180 out of the housing 100. The pressure at the first rear water inlet 161 of the liquid channel 112 decreases. Under the pressure of the liquid in the filter chamber 122, the baffle at the first rear water inlet 161 moves into the first liquid channel 114. The filter chamber 122 is communicated with the first liquid channel 114 through the first rear water inlet 161. The pressure at the first front water inlet 151 of the liquid channel 112 increases. Under the pressure of the liquid in the first liquid channel 114, the baffle at the first front water inlet 151 is fixed in the closed position to prevent the filter chamber 122 from being communicated with the first liquid channel 114 through the first front water inlet 151. The second liquid channel 115 discharges from the rear drain port 190 out of the housing 100. The pressure at the second front water inlet 152 of the liquid channel 112 decreases. Under the pressure of the liquid in the filter chamber 122, the baffle at the second front water inlet 152 moves into the second liquid channel 115. The filter chamber 122 is communicated with the second liquid channel 115 through the second front water inlet 152. The pressure at the second rear water inlet 162 of the liquid channel 112 increases. Under the pressure of the liquid in the second liquid channel 115, the baffle at the second rear water inlet 162 is fixed in the closed position to prevent the filter chamber 122 from being communicated with the second liquid channel 115 through the second rear water inlet 162.

[0072] In this way, the control mode of the pool cleaning robot 1 is clearer, the liquid flow in the first liquid channel 114 is smoother, and the liquid flow in the second liquid channel 115 is smoother. The liquid volumes in both the first liquid channel 114 and the second liquid channel 115 are more sufficient.

[0073] The above-mentioned first front water inlet 151, second front water inlet 152, first rear water inlet 161, and second rear water inlet 162 are located between the first liquid channel 114 and the second liquid channel 115. In this way, the front drain port 180 and the rear drain port 190 communicated with the first liquid channel 114 are closer to one side in the width direction of the pool cleaning robot 1, and the front drain port 180 and the rear drain port 190 communicated with the second liquid channel 115 are closer to the other side in the width direction of the pool cleaning robot 1. The steering speed of the pool cleaning robot 1 is fast, which is beneficial for the pool cleaning robot 1 to adjust its own moving direction.

[0074] Specifically, the first front water inlet 151 and the first rear water inlet 161 can be arranged at intervals along the extending direction of the pool cleaning robot 1, and the second front water inlet 152 and the second rear water inlet 162 can be arranged at intervals along the extending direction of the pool cleaning robot 1. The first front water inlet 151 is closer to the first liquid channel 114 than the second front water inlet 152, and the first rear water inlet 161 is closer to the first liquid channel 114 than the second rear water inlet 162.

[0075] In this way, the first front water inlet 151 and the first rear water inlet 161 are closer to the first liquid channel 114, reducing the flow path of the liquid between the first front water inlet 151 and the first liquid channel 114, and reducing the flow path of the liquid between the first rear water inlet 161 and the first liquid channel 114, making the structure of the pool cleaning robot 1 simpler.

[0076] The second front water inlet 152 and the second rear water inlet 162 are closer to the second liquid channel 115, reducing the flow path of the liquid between the second front water inlet 152 and the second liquid channel 115, and reducing the flow path of the liquid between the second rear water inlet 162 and the second liquid channel 115, making the structure of the pool cleaning robot 1 simpler.

[0077] The above-mentioned liquid channel 112 is located below the filtration chamber 122. In this way, the liquid in the filtration chamber 122 flows downward into the liquid channel 112 under the guidance of the impeller 140 without having to overcome gravity, and the liquid in the filtration chamber 122 flows more easily into the liquid channel 112 with the assistance of gravity, reducing the energy consumption of the pool cleaning robot 1 and extending the battery life of the pool cleaning robot 1.

[0078] As Figures 1-5 shown, the above-mentioned housing 100 includes an outer shell 110. The liquid channel 112 and the water inlet are provided on the outer shell 110, the pump body is connected to the outer shell 110, the filtration device 120 is detachably provided on the outer shell 110, and the opening 121 and the filtration chamber 122 are provided on the filtration device 120.

[0079] After the pool cleaning robot 1 cleans the liquid surface, the filtration device 120 can be detached from the accommodation chamber 111, then the garbage in the filtration chamber 122 of the filtration device 120 can be emptied, and then the filtration device 120 can be installed back into the accommodation chamber 111. The pool cleaning robot 1 has a good reusability effect, and there is no need to lift the entire pool cleaning robot 1 to empty the garbage, improving the convenience of emptying the garbage of the pool cleaning robot 1.

[0080] At least one of the above-mentioned outer shell 110 and the filtration device 120 is provided with a second filter screen (not shown in the figure), and the second filter screen covers the space between the filtration chamber 122 and the liquid channel 112 for filtering the liquid flowing from the filtration chamber 122 to the liquid channel 112.

[0081] During the forward movement of the pool cleaning robot 1, the liquid to be cleaned continuously enters the filter chamber 122 through the opening 121. The liquid to be cleaned in the filter chamber 122 can flow through the water inlet to the liquid passage 112, and finally be discharged from the housing 110 through the front drain port 180 or the rear drain port 190 via the liquid passage 112. Among them, the second filter screen is located between the filter chamber 122 and the water inlet to prevent the liquid flowing into the filter chamber 122 from flowing into the water inlet, avoid clogging of the liquid passage 112 and the water inlet, ensure the smooth discharge of the liquid to be cleaned in the filter chamber 122, and prevent the liquid to be cleaned in the filter chamber 122 from flowing back out of the opening 121 and causing garbage to overflow.

[0082] As Figure 1 and Figure 2 shown, the pool cleaning robot 1 according to an embodiment of the present application includes a housing 100 and a floating plate assembly 200.

[0083] The housing 100 is provided with an opening 121 and a filter chamber 122, the filter chamber 122 is communicated with the opening 121, the floating plate assembly 200 is rotatably arranged on the housing 100 between an open position and a closed position. When the floating plate assembly 200 is in the open position, the opening 121 is open. When the floating plate assembly 200 is in the closed position, at least a part of the opening 121 is covered. The density of the floating plate assembly 200 is less than the density of the liquid to be cleaned, and the floating plate assembly 200 is kept in the closed position by the buoyancy of the liquid to be cleaned, that is, when the pool cleaning robot 1 is in a stationary state, the floating plate assembly 200 is kept in the closed position by the buoyancy of the liquid to be cleaned.

[0084] For example, the pool cleaning robot 1 can be used in water storage areas such as swimming pools, rivers, lakes, etc. to clean garbage such as leaves and plastics in the above-mentioned water storage areas. And, the pool cleaning robot 1 can float on the liquid surface, mainly for cleaning the liquid surface, or the pool cleaning robot 1 can sink below the liquid surface for overall cleaning of the liquid.

[0085] According to the pool cleaning robot 1 of the embodiment of the present application, by providing an opening 121 and a filter chamber 122 on the housing 100, the filter chamber 122 is communicated with the opening 121, the floating plate assembly 200 is rotatably arranged on the housing 100 between an open position and a closed position. When the floating plate assembly 200 is in the open position, the opening 121 is open. When the floating plate assembly 200 is in the closed position, at least a part of the opening 121 is covered. Among them, the rotation axis of the floating plate assembly 200 can be a solid rotation axis, that is, the rotation axis of the floating plate assembly 200 passes through the floating plate assembly 200, or the rotation axis of the floating plate assembly 200 can be a virtual axis, that is, the rotation axis of the floating plate assembly 200 does not pass through the floating plate assembly 200, and the movement range of the floating plate assembly 200 is larger.

[0086] When the floating plate assembly 200 is in the open position, the garbage in the liquid can enter the filtering chamber 122 through the opening 121; when the floating plate assembly 200 is in the closed position, the garbage in the filtering chamber 122 will be blocked by the floating plate assembly 200, so as to reduce the probability of the garbage in the filtering chamber 122 flowing out of the filtering chamber 122.

[0087] In addition, the density of the floating plate assembly 200 is less than the density of the liquid to be cleaned, and the floating plate assembly 200 is kept in the closed position by the buoyancy of the liquid to be cleaned. Moreover, when the pool cleaning robot 1 moves forward, the liquid to be cleaned pushes the floating plate assembly 200 to switch from the closed position to the open position. Herein, the liquid to be cleaned may include water, other single liquid or mixed liquid.

[0088] That is to say, the density of the floating plate assembly 200 is less than the density of the liquid to be cleaned. When the pool cleaning robot 1 does not move (i.e., is in a static state), the buoyancy exerted by the liquid to be cleaned on the floating plate assembly 200 will push the floating plate assembly 200 to move towards the liquid surface, so that when the floating plate assembly 200 is in the closed position, it can cover at least a part of the opening 121, so as to reduce the probability of the garbage in the filtering chamber 122 flowing out of the filtering chamber 122. Or, when the pool cleaning robot 1 moves in the direction away from the opening 121, the pool cleaning robot 1 and the liquid to be cleaned move relatively. The floating plate assembly 200 is not only subjected to the buoyancy exerted by the liquid to be cleaned, but also subjected to the thrust exerted by the liquid to be cleaned on the floating plate assembly 200, so that the floating plate assembly 200 can switch from the open position to the closed position more quickly, thus preventing the garbage in the filtering chamber 122 from being removed from the filtering chamber 122 under the flow of the liquid to be cleaned.

[0089] When the pool cleaning robot 1 moves in the direction of the opening 121, the pool cleaning robot 1 and the liquid to be cleaned move relatively. When the thrust exerted by the liquid to be cleaned on the floating plate assembly 200 is greater than the buoyancy exerted by the liquid to be cleaned on the floating plate assembly 200, the floating plate assembly 200 will start to rotate towards the open position, so that the floating plate assembly 200 switches to the open position. At this time, the garbage in the liquid to be cleaned can enter the filtering chamber 122 more quickly, so as to ensure the cleaning speed of the pool cleaning robot 1 for the liquid to be cleaned.

[0090] In addition, in the pool cleaning robot 1 according to the embodiment of the present application, the rotation of the floating plate assembly 200 between the open position and the closed position does not require an additional driving structure. Only by relying on the pool cleaning robot 1 to change its own motion state, the opening and closing of the floating plate assembly 200 can be controlled. The structure of the pool cleaning robot 1 is simple, the number of parts is small, the disassembly and assembly steps are simplified, the production cost and weight are low, and the control program is concise, which is beneficial to improving the cleaning efficiency and is convenient to operate.

[0091] Thus, the pool cleaning robot 1 according to the embodiments of the present application does not need to additionally provide a driving structure for the floating plate assembly 200, and has the advantages of simple structure, few parts, low production cost and low weight.

[0092] As Figure 1 and Figure 2 shown, the rotation axis of the floating plate assembly 200 is located below the liquid level of the liquid to be cleaned, and the rotation axis can pass through the floating plate assembly 200. Since the rotation axis of the floating plate assembly 200 is located below the liquid level of the liquid to be cleaned, at least a part of the floating plate assembly 200 will still be located below the liquid level no matter what position the floating plate assembly 200 is in, which can ensure the effective shielding of the opening 121 by the floating plate assembly 200.

[0093] As Figure 5 shown, the above-mentioned floating plate assembly 200 has a first side 201 and a second side 202. The first side 201 and the second side 202 are located on opposite sides of the floating plate assembly 200. The first side 201 is rotatably connected to the housing 100, that is, the rotation axis of the floating plate assembly 200 is arranged on the first side 201, and the arrangement direction of the first side 201 and the second side 202 is perpendicular to the rotation axis of the floating plate assembly 200. Wherein, when the floating plate assembly 200 switches from the open position to the closed position, the second side 202 rotates upward around the rotation axis of the floating plate assembly 200, and when the floating plate assembly 200 switches from the closed position to the open position, the second side 202 rotates downward around the rotation axis of the floating plate assembly 200.

[0094] Since the density of the floating plate assembly 200 is less than the density of the liquid to be cleaned, when the pool cleaning robot 1 moves in the direction away from the opening 121, or when the pool cleaning robot 1 does not move, the buoyancy exerted by the liquid to be cleaned on the floating plate assembly 200 will naturally push the floating plate assembly 200 upward. Compared with arranging the rotation axis of the floating plate assembly 200 between the first side 201 and the second side 202 and connecting the first side 201 to the housing 100, the movement stroke of the first side 201 relative to the housing 100 is smaller, and the second side 202 rotates upward around the rotation axis of the floating plate assembly 200, which is convenient to realize the rotation of the floating plate assembly 200 between the open position and the closed position.

[0095] As Figure 1 and Figure 2As shown, the above-mentioned pool cleaning robot 1 moves horizontally. The housing 100 has a first side 101 and a second side 102 that are oppositely arranged in the moving direction of the pool cleaning robot 1. Among them, the opening 121 is provided on the first side 101. When the floating plate assembly 200 is in the closed position, the first side 201 is located below the second side 202. For example, the pool cleaning robot 1 can float on the liquid surface to clean the liquid surface, or the pool cleaning robot 1 can sink in the liquid to clean the whole liquid.

[0096] When the pool cleaning robot 1 moves in the direction of the first side 101, the floating plate assembly 200 rotates to the open position under the thrust of the liquid to be cleaned. At this time, the floating plate assembly 200 can be in a horizontal state, the opening 121 is wide open, and garbage can enter the filter chamber 122; when the pool cleaning robot 1 does not move, the floating plate assembly 200 rotates to the closed position under the buoyancy of the liquid to be cleaned. At this time, the floating plate assembly 200 can be in a vertical state to prevent the garbage in the filter chamber 122 from moving out; when the pool cleaning robot 1 moves in the direction of the second side 102, the floating plate assembly 200 rotates to the closed position under the combined action of the buoyancy of the liquid to be cleaned and the thrust of the liquid to be cleaned. At this time, the floating plate assembly 200 can be in a vertical state to prevent the garbage in the filter chamber 122 from moving out.

[0097] As Figure 1 and Figure 2 shown, a part of the above-mentioned opening 121 is located above the liquid surface, and another part of the opening 121 is located below the liquid surface. That is to say, the lower edge of the opening 121 is lower than the liquid surface of the liquid to be cleaned, and the lower edge of the opening 121 is higher than the liquid surface of the liquid to be cleaned. The pool cleaning robot 1 floats on the liquid surface. For example, the pool cleaning robot 1 is provided with a buoyancy device, so that the pool cleaning robot 1 mainly cleans the liquid surface. Therefore, the garbage in the liquid to be cleaned is concentrated on the liquid surface. Therefore, after cleaning the garbage on the liquid surface, the cleaning degree of the liquid to be cleaned is greatly improved, and the cleaning efficiency of the pool cleaning robot 1 is improved.

[0098] The above-mentioned floating plate assembly 200 can be made of a material with a density less than that of the liquid to be cleaned. For example, when the pool cleaning robot 1 is applied to a swimming pool, the floating plate assembly 200 can be made of a material with a density less than that of the liquid in the swimming pool. When the pool cleaning robot 1 is applied to a river, the floating plate assembly 200 can be made of a material with a density less than that of the liquid in the river. The above-mentioned floating plate assembly 200 can also be provided with a cavity so that the density of the floating plate assembly 200 is less than that of the liquid to be cleaned. In this way, the structural form of the floating plate assembly 200 is more diverse, which is conducive to applying the pool cleaning robot 1 to different usage scenarios.

[0099] As Figure 1 and Figure 2As shown, the above-mentioned housing 100 is provided with a limiting block 123. When the floating plate assembly 200 is in the closed position, the floating plate assembly 200 is blocked by the limiting block 123, defining the rotation stroke of the floating plate assembly 200.

[0100] For example, there may be at least two limiting blocks 123. The two limiting blocks 123 are respectively arranged on opposite sides of the floating plate assembly 200 in the extending direction of the rotation axis of the floating plate assembly 200, so that the floating plate assembly 200 is evenly stressed. And the limiting block 123 blocks the second side 202. The limiting block 123 is located above the liquid level, which has a better limiting effect on the floating plate assembly 200. And when the floating plate assembly 200 is in the closed position, since the limiting block 123 is located on the upper side of the opening 121, that is, the distance between the limiting block 123 and the liquid level is relatively far, it is not easy to affect the garbage on the liquid surface from entering the filtering cavity 122, ensuring the cleaning efficiency of the pool cleaning robot 1 for the garbage on the liquid surface.

[0101] Among them, during the process of the pool cleaning robot 1 moving in the opening direction of the opening 121, the liquid to be cleaned continuously enters the filtering cavity 122 from the opening 121, and the floating plate assembly 200 is pushed to move from the closed position to the open position. At this time, the floating plate assembly 200 gradually rotates into the filtering cavity 122. When the floating plate assembly 200 moves to the open position, it will be blocked by the inner wall of the filtering cavity 122. Therefore, there is no need to additionally set a blocking structure to block the floating plate assembly 200 in the open position;

[0102] During the process of the pool cleaning robot 1 moving in the direction away from the opening direction of the opening 121 or when the pool cleaning robot 1 is in a stationary state, the liquid to be cleaned exerts a buoyant force on the floating plate assembly 200, and the floating plate assembly 200 is pushed to move from the open position to the closed position. At this time, the floating plate assembly 200 gradually rotates out of the filtering cavity 122. By setting the limiting block 123, the limiting block 123 can be located on the side of the floating plate assembly 200 facing away from the filtering cavity 122. The limiting block 123 can limit the floating plate assembly 200 in the closed position, thereby preventing the limiting block 123 from rotating out of the filtering cavity 122 excessively, ensuring the maximization of the shielding of the opening 121 by the floating plate assembly 200. The floating plate assembly 200 has a better shielding effect on the opening 121 in the closed position, reducing the probability of objects in the filtering cavity 122 moving out from the opening 121.

[0103] Such as Figure 1 and Figure 2 As shown, the above-mentioned floating plate assembly 200 includes a floating plate skeleton 210 and a first filter screen. The floating plate skeleton 210 is rotatably installed on the housing 100. The density of the floating plate skeleton 210 is less than the density of the liquid to be cleaned. The first filter screen is arranged on the floating plate skeleton 210. When the floating plate assembly 200 is in the closed position, the first filter screen covers at least a part of the opening 121.

[0104] Among them, the floating plate skeleton 210 is made of a material with a density less than that of water, or the floating plate assembly 200 is provided with a cavity, so that the density of the floating plate assembly 200 is less than the density of the liquid to be cleaned. Alternatively, the floating plate skeleton 210 is made of a material with a density less than that of water, and the floating plate assembly 200 is provided with a cavity.

[0105] By providing the first filter screen, not only can the garbage in the filter chamber 122 be prevented from flowing out when the floating plate assembly 200 is in the closed position, but also the degree of sealing of the filter chamber 122 by the floating plate assembly 200 in the closed position can be reduced, the exchange efficiency between the filter chamber 122 and the liquid to be cleaned outside can be increased, and the weight of the floating plate assembly 200 can be reduced, thereby reducing costs.

[0106] As Figure 5 shown, the above-mentioned floating plate skeleton 210 has a plurality of through holes 240, and there are a plurality of first filter screens, and the plurality of first filter screens are correspondingly arranged in the plurality of through holes 240 one by one. In this way, the first filter screen is divided into a plurality of parts, the area of each first filter screen can be reduced, so the damage probability of the first filter screen is reduced, and it is beneficial to improve the structural strength of the floating plate skeleton 210.

[0107] As Figure 5 shown, the arrangement direction of the above-mentioned plurality of through holes 240 is perpendicular to the moving direction of the pool cleaning robot 1, avoiding the stacked arrangement of the plurality of first filter screens along the moving direction of the pool cleaning robot 1, which is beneficial to increasing the area of the plurality of first filter screens covering the opening 121.

[0108] For example, the above-mentioned floating plate skeleton 210 includes a first cross beam 211, a second cross beam 212, a first vertical beam 213, a second vertical beam 214 and a third vertical beam 215.

[0109] The first cross beam 211 extends horizontally and is lower than the liquid level of the liquid to be cleaned, the second cross beam 212 extends horizontally and is higher than the liquid level of the liquid to be cleaned, the first vertical beam 213, the second vertical beam 214 and the third vertical beam 215 all extend vertically and are arranged at intervals in the horizontal direction. The first cross beam 211 is respectively connected to the first vertical beam 213, the second vertical beam 214 and the third vertical beam 215, and the second cross beam 212 is respectively connected to the first vertical beam 213, the second vertical beam 214 and the third vertical beam 215. Among them, one of the first filter screens is arranged between the first vertical beam 213 and the second vertical beam 214, and the other first filter screen is arranged between the second vertical beam 214 and the third vertical beam 215.

[0110] By providing the first cross beam 211, the second cross beam 212, the first vertical beam 213, the second vertical beam 214 and the third vertical beam 215, the floating plate skeleton 210 generally forms a "day"-shaped frame, the structure of the floating plate skeleton 210 is more stable, and by setting the first filter screen to be multiple, the area of each first filter screen can be reduced, so the damage probability of the first filter screen is reduced.

[0111] As Figure 1 and Figure 2 shown, the above-mentioned housing 100 includes an outer shell 110. The outer shell 110 is provided with a receiving cavity 111, the filtering device 120 is slidably disposed in the receiving cavity 111, and an opening 121 and a filtering cavity 122 are provided in the filtering device 120. Among them, the floating plate assembly 200 is rotatably disposed on the outer shell 110 or the filtering device 120.

[0112] After the pool cleaning robot 1 cleans the liquid surface, the filtering device 120 can be removed from the receiving cavity 111, then the garbage in the filtering cavity 122 of the filtering device 120 can be poured out, and then the filtering device 120 is installed into the receiving cavity 111. The pool cleaning robot 1 has a good reuse effect, and it is not necessary to lift the whole pool cleaning robot 1 to pour out the garbage, which improves the convenience of pouring out the garbage of the pool cleaning robot 1.

[0113] As Figure 5 shown, one of the above-mentioned floating plate assembly 200 and the filtering device 120 is provided with a rotating shaft 230 and the other is provided with a shaft hole 124, and the rotating shaft 230 and the shaft hole 124 are rotatably matched. Compared with installing the floating plate assembly 200 on the outer shell 110, by installing the floating plate assembly 200 on the filtering device 120, when the filtering device 120 is installed into the receiving cavity 111 and when the filtering device 120 is removed from the receiving cavity 111, the floating plate assembly 200 will not interfere with the filtering device 120, and the disassembly and assembly of the filtering device 120 are more convenient.

[0114] As Figures 1-4 shown, the pool cleaning robot 1 according to the embodiment of the present application includes a housing 100, a distance sensor, a pump body and a controller. Among them, the distance sensor can be an infrared sensor.

[0115] The pool cleaning robot 1 moves in the horizontal direction. The housing 100 has a first side surface 101 and a second side surface 102 which are oppositely arranged in the moving direction of the pool cleaning robot 1. The housing 100 is provided with an opening 121 and a filtering cavity 122 which are sequentially communicated. The opening 121 is provided on the first side surface 101. The distance sensor is disposed on the housing 100, and the distance sensor is used to detect whether there is an obstacle 400 in the opening direction of the opening 121 and / or the distance between the pool cleaning robot 1 and the obstacle 400. The pump body is disposed on the housing 100. The controller is respectively connected to the distance sensor and the pump body, and the controller controls the working state of the pump body according to the feedback result of the distance sensor.

[0116] Among them, attached Figure 3In the figure, the direction indicated by arrow A is the opening direction of the pool cleaning robot 1 facing the opening 121, and the direction indicated by arrow B is the schematic diagram of the flow direction of the liquid to be cleaned relative to the pool cleaning robot 1 when the pool cleaning robot 1 moves in the direction facing the opening 121.

[0117] For example, the pool cleaning robot 1 can be used in water storage areas such as swimming pools, rivers, lakes, etc. to clean garbage such as leaves and plastics in the above-mentioned water storage areas. Moreover, the pool cleaning robot 1 can float on the liquid surface and is mainly used for liquid surface cleaning, or the pool cleaning robot 1 can sink below the liquid surface for overall cleaning of the liquid.

[0118] According to the pool cleaning robot 1 of the embodiment of the present application, by providing an opening 121 and a filter chamber 122 that are sequentially connected in the housing 100, the housing 100 has a first side surface 101 and a second side surface 102 that are oppositely arranged in the moving direction of the pool cleaning robot 1, and the opening 121 is provided on the first side surface 101. In this way, during the process of the surface cleaning machine moving forward in the direction of the first side surface 101, a large amount of the liquid to be cleaned can enter the filter chamber 122 through the opening 121, so that the garbage in the liquid to be cleaned will be stored in the filter chamber 122.

[0119] In addition, a pump body is provided in the housing 100. By the operation of the pump body, the liquid to be cleaned can be sucked into the filter chamber 122 through the opening 121, thereby increasing the flow rate of the liquid to be cleaned flowing into the filter chamber 122. Furthermore, the garbage in the liquid to be cleaned can also enter the filter chamber 122 more quickly, thereby improving the cleaning efficiency of the pool cleaning robot 1 for the garbage in the liquid to be cleaned. Among them, regardless of what motion mode the pool cleaning robot 1 is in, the pump body can operate. For example, when the pool cleaning robot 1 is in a forward state, a backward state or a stationary state, the pump body can operate to further optimize the cleaning effect of the pool cleaning robot 1 on the liquid to be cleaned.

[0120] In addition, the pool cleaning robot 1 moves in the horizontal direction, and a distance sensor is provided in the housing 100. The distance sensor is used to detect whether there is an obstacle 400 in the opening direction of the opening 121 and the distance between the pool cleaning robot 1 and the obstacle 400.

[0121] Since the pool cleaning robot 1 moves horizontally, when the pool cleaning robot 1 is applied in a swimming pool, the pool cleaning robot 1 will gradually approach the pool wall. The above-mentioned obstacle 400 is the pool wall. When the distance between the pool cleaning robot 1 and the pool wall is relatively close, the pool cleaning robot 1 can stop moving and remain stationary so that the opening 121 is kept at a certain distance from the pool wall, avoiding collision between the housing 100 and the obstacle 400, reducing the probability of damage to the pool cleaning robot 1. At this time, the controller controls the start or increase of the operating power of the pump body according to the detection result of the distance sensor (it can be understood that during the movement of the pool cleaning robot 1, the pump body can not be started, and only the water flow is used to bring the garbage into the filtration chamber 122. The pump body can also be started, but it operates at a low power to play an auxiliary role in guiding the garbage and reducing energy consumption), so as to absorb a large amount of the liquid to be cleaned near the pool wall. Thus, a large amount of the garbage near the pool wall will also enter the filtration chamber 122. Without the pool cleaning robot 1 coming into contact with the pool wall, effective cleaning of the garbage near the pool wall is achieved, and the probability of damage is low.

[0122] When the pool cleaning robot 1 is applied in a river or a lake, the above-mentioned obstacle 400 can be structures such as buildings, raised mounds or embankments in the river or the lake. When the distance between the pool cleaning robot 1 and the above-mentioned obstacle 400 is relatively close, the pool cleaning robot 1 can stop moving and remain stationary so that the opening 121 is kept at a certain distance from the above-mentioned obstacle 400, avoiding collision between the housing 100 and the obstacle 400, reducing the probability of damage to the pool cleaning robot 1. At this time, the controller controls the start or increase of the operating power of the pump body according to the detection result of the distance sensor (it can be understood that during the movement of the pool cleaning robot 1, the pump body can not be started, and only the water flow is used to bring the garbage into the filtration chamber 122. The pump body can also be started, but it operates at a low power to play an auxiliary role in guiding the garbage and reducing energy consumption), so as to absorb a large amount of the liquid to be cleaned near the above-mentioned obstacle 400. Thus, a large amount of the garbage near the above-mentioned obstacle 400 will also enter the filtration chamber 122. Without the pool cleaning robot 1 coming into contact with the above-mentioned obstacle 400, effective cleaning of the garbage near the above-mentioned obstacle 400 is achieved, and the probability of damage is low.

[0123] In this way, the pool cleaning robot 1 according to the embodiment of the present application can effectively clean the liquid to be cleaned near the obstacle 400, with good cleaning effect and low probability of damage.

[0124] When the above-mentioned distance sensor detects that there is an obstacle 400 in the opening direction of the opening 121:

[0125] If the distance between the obstacle 400 and the pool cleaning robot 1 is greater than a preset value, the pump body operates at a first power;

[0126] If the distance between the obstacle 400 and the pool cleaning robot 1 is not greater than a preset value, the pump body operates at a second power, and the second power is greater than the first power.

[0127] Specifically, when the distance between the obstacle 400 and the pool cleaning robot 1 is greater than the preset value, the distance between the obstacle 400 and the pool cleaning robot 1 is relatively far. Therefore, the pool cleaning robot 1 can continue to move in the direction of the obstacle 400. At this time, the pump body operates at the first power, and the first power is relatively low, which can play a role in assisting the flow of the liquid to be cleaned. At this time, the energy consumption is low, ensuring the battery life of the pool cleaning robot 1.

[0128] When the distance between the obstacle 400 and the pool cleaning robot 1 is not greater than the preset value, the distance between the obstacle 400 and the pool cleaning robot 1 is relatively close. Therefore, the pool cleaning robot 1 stops moving in the direction of the obstacle 400 to avoid collision between the housing 100 and the obstacle 400, reducing the probability of damage to the pool cleaning robot 1. At this time, the pump body operates at the second power, and the second power is relatively high, which can guide a large amount of the liquid to be cleaned into the filter chamber 122, increasing the speed of filtering garbage.

[0129] The first side 101 has a first side edge 103 and a second side edge 104 which are oppositely arranged. Both the first side edge 103 and the second side edge 104 are perpendicular to the liquid level of the liquid to be cleaned. There are multiple distance sensors, and at least one of the multiple distance sensors is close to the first side edge 103, and at least one of the other multiple distance sensors is close to the second side edge 104.

[0130] By providing at least two distance sensors and arranging the two distance sensors on the first side edge 103 and the second side edge 104 respectively, the distance between the side edges of the first side 101 in the horizontal direction and the obstacle 400 can be detected, thereby effectively adjusting the moving direction and moving state of the pool cleaning robot 1. For example, the moving directions include straight forward, moving forward to the left front, moving forward to the right front, straight backward, moving backward to the left rear, and moving backward to the right rear, and the moving states include forward, backward, and stationary.

[0131] According to the detection result of at least one distance sensor on the first side edge 103, the first distance from the first side edge 103 to the obstacle 400 is obtained. According to the detection result of at least one distance sensor on the second side edge 104, the second distance from the second side edge 104 to the obstacle 400 is obtained. If the first distance is not equal to the second distance, the controller controls the pump body corresponding to the first side edge 103 to act and / or the controller controls the pump body corresponding to the second side edge 104 to act, so that the first distance is equal to the second distance.

[0132] Specifically, there may be multiple pump bodies. One of the multiple pump bodies corresponds to the position of the first side edge 103, and this pump body can drive the movement of the first side edge 103, for example, drive the first side edge 103 to advance or retreat; another one of the multiple pump bodies corresponds to the position of the second side edge 104, and this pump body can control the movement of the second side edge 104, for example, drive the second side edge 104 to advance or retreat.

[0133] By comparing the magnitude relationship between the first distance and the second distance, it can be determined whether the first side surface 101 is parallel to the obstacle 400. If the first side surface 101 is not parallel to the obstacle 400, adjust the first distance between the first side edge 103 and the obstacle 400, or adjust the second distance between the second side edge 104 and the obstacle 400, or adjust both the first distance between the first side edge 103 and the obstacle 400 and the second distance between the second side edge 104 and the obstacle 400 simultaneously.

[0134] In this way, it can be ensured that the first side surface 101 is parallel to the obstacle 400, so that the ability of each area of the opening 121 to guide the liquid to be cleaned is the same, thereby cleaning the garbage near the obstacle 400 more effectively.

[0135] If the first distance is greater than the second distance and the second distance is equal to zero, the controller controls the pump body corresponding to the first side edge 103 to act, so that both the first distance and the second distance are zero. Similarly, if the second distance is greater than the first distance and the first distance is equal to zero, the controller controls the pump body corresponding to the second side edge 104 to act, so that both the first distance and the second distance are zero.

[0136] As Figure 4 shown, the above-mentioned first side surface 101 is provided with a front drain port 180, and the above-mentioned second side surface 102 is provided with a rear drain port 190. The pool cleaning robot 1 has a forward mode and a reverse mode. The pump body includes an impeller 140. When the pool cleaning robot 1 is in the forward mode, the impeller 140 rotates in the first direction, guiding the liquid in the housing 100 to flow towards the rear drain port 190. When the pool cleaning robot 1 is in the reverse mode, the impeller 140 rotates in the second direction opposite to the first direction, guiding the liquid in the housing 100 to flow towards the front drain port 180.

[0137] By adjusting the rotation direction of the impeller 140, the flow direction of the liquid in the housing 100 can be adjusted. When the impeller 140 rotates in the first direction, the liquid in the housing 100 flows out from the rear drain port 190. At this time, a forward reaction force will be given to the pool cleaning robot 1 to push the pool cleaning robot 1 forward; when the impeller 140 rotates in the second direction, the liquid in the housing 100 flows out from the front drain port 180. At this time, a backward reaction force will be given to the pool cleaning robot 1 to push the pool cleaning robot 1 backward.

[0138] In this way, the pump body can not only guide the liquid to be cleaned into the filter chamber 122, but also adjust the moving direction of the pool cleaning robot 1. The pump body can achieve multiple functions, reducing the number of parts. The structure of the pool cleaning robot 1 is simple, and the cost and weight can be correspondingly reduced.

[0139] As Figure 1 and Figure 2 shown, the above-mentioned first side 101 is provided with an installation cavity 105, and the distance sensor is arranged in the installation cavity. By setting the installation cavity 105, on the one hand, the distance sensor can be protected, reducing the probability of damage to the distance sensor. On the other hand, the installation cavity 105 is constructed on the first side 101. When the pool cleaning robot 1 moves forward, the distance sensor in the installation cavity 105 can more reliably detect whether there is an obstacle 400 in the forward direction of the pool cleaning robot 1 and the distance between the obstacle 400 and the first side 101.

[0140] As Figure 1 and Figure 2 shown, the above-mentioned first side 101 is provided with a plurality of anti-collision blocks 170. The plurality of anti-collision blocks 170 are arranged in the horizontal direction, and the arrangement direction of the anti-collision blocks 170 is perpendicular to the moving direction of the housing 100. By setting a plurality of anti-collision blocks 170, when the pool cleaning robot 1 moves in the direction of the first side 101, the anti-collision blocks 170 have a larger coverage area for the first side 101 of the pool cleaning robot 1, thereby further avoiding the probability of collision of the first side 101.

[0141] The size of the above-mentioned anti-collision block 170 exceeding the first side 101 is 5 mm to 20 mm. On the one hand, setting the size of the anti-collision block 170 exceeding the first side 101 to be not less than 5 mm can ensure that there is sufficient clearance between the housing 100 and the obstacle 400, which is beneficial for the pool cleaning robot 1 to collect the garbage near the obstacle 400. On the other hand, setting the size of the anti-collision block 170 exceeding the first side 101 to be not greater than 20 mm can avoid the anti-collision block 170 being too long and affecting the operation of the pool cleaning robot 1, reducing the cost and weight.

[0142] As Figure 1 and Figure 2 shown, a part of the above-mentioned opening 121 is located above the liquid level, and the other part of the opening 121 is below the liquid level. That is to say, the upper side edge of the opening 121 is higher than the liquid level, and the lower side edge of the opening 121 is lower than the liquid level. The pool cleaning robot 1 floats on the liquid level. For example, the pool cleaning robot 1 can be provided with a buoyancy device. Since the garbage in the water storage area mainly floats on the liquid level, in this way, the pool cleaning robot 1 can clean the liquid level with higher cleaning efficiency.

[0143] In addition, the distance sensor is located below the opening 121. When the pool cleaning robot 1 is used in a swimming pool, since the pool cleaning robot 1 floats on the liquid surface, if the distance sensor is above the liquid surface, the distance sensor may be higher than the pool wall of the swimming pool. Similarly, when the pool cleaning robot 1 is used in a river or a lake, if the distance sensor is above the liquid surface, the distance sensor may be higher than the edge of the river and the peripheral wall of the lake. Therefore, the distance sensor is arranged below the opening 121 to ensure that the distance sensor is below the liquid surface, so as to ensure the accuracy of the distance sensor in detecting the obstacle 400.

[0144] In addition, the anti-collision block 170 is located below the opening 121. When the pool cleaning robot 1 is used in a swimming pool, since the pool cleaning robot 1 floats on the liquid surface, if the anti-collision block 170 is above the liquid surface, the anti-collision block 170 may be higher than the pool wall of the swimming pool. Similarly, when the pool cleaning robot 1 is used in a river or a lake, if the anti-collision block 170 is above the liquid surface, the anti-collision block 170 may be higher than the edge of the river and the peripheral wall of the lake. Therefore, the anti-collision block 170 is arranged below the opening 121 to ensure that the anti-collision block 170 is below the liquid surface, and the protection of the anti-collision block 170 for the housing 100 is more reliable.

[0145] As Figures 1-3 shown, the above-mentioned housing 100 includes a housing 110. The housing 110 is provided with an accommodation cavity 111, and the filtering device 120 is detachably arranged in the accommodation cavity 111. The opening 121 and the filtering cavity 122 are arranged on the filtering device 120. Among them, at least one of the distance sensor and the anti-collision block 170 is arranged on the housing 110.

[0146] After the pool cleaning robot 1 cleans the liquid surface, the filtering device 120 can be detached from the accommodation cavity 111, then the garbage in the filtering cavity 122 of the filtering device 120 can be poured out, and then the filtering device 120 is installed in the accommodation cavity 111. The pool cleaning robot 1 has a good effect of repeated use, and it is not necessary to lift the whole pool cleaning robot 1 to pour out the garbage, which improves the convenience of pouring out the garbage of the pool cleaning robot 1.

[0147] Since the relative position may occur between the filtering device 120 and the housing 110, and the filtering device 120 is located inside the housing 110, arranging the distance sensor on the housing 110 can more accurately judge the distance between the obstacle 400 detected by the distance sensor and the housing 110, and further more accurately judge the distance between the obstacle 400 detected by the distance sensor and the outer surface of the pool cleaning robot 1, so as to effectively control the switching of the working state of the pool cleaning robot 1.

[0148] After the filtering device 120 is continuously disassembled from and assembled onto the housing 110, the relative positional relationship between the filtering device 120 and the housing 110 may change. Since the filtering device 120 is located inside the housing 110, by disposing the anti-collision block 170 on the housing 110, it is possible to more reliably prevent the housing 110 from being collided, effectively protect the housing 110, and reduce the probability of damage to the housing 110.

[0149] As Figure 1 and Figure 2 shown, the above-mentioned pool cleaning robot 1 further includes a photovoltaic cell 300. The photovoltaic cell 300 is disposed on the top of the housing 100, and the photovoltaic cell 300 is higher than the liquid level of the liquid to be cleaned. At least one of the pump body and the distance sensor is electrically connected to the photovoltaic cell 300.

[0150] Specifically, a storage battery can be installed in the housing 100. The storage battery can be connected to the pump body to supply power to the pump body. The photovoltaic cell 300 can be connected to the storage battery to charge the storage battery; the photovoltaic cell 300 can be directly connected to the pump body to supply power to the pump body; the photovoltaic cell 300 can also be respectively connected to the pump body and the storage battery to supply power to the pump body and charge the storage battery.

[0151] In addition, the storage battery can also be connected to the distance sensor to supply power to the distance sensor. The photovoltaic cell 300 can also be connected to the distance sensor to supply power to the distance sensor.

[0152] By disposing the photovoltaic cell 300 on the top of the housing 100, on the one hand, the endurance of the pool cleaning robot 1 can be improved, and on the other hand, the space utilization rate of the housing 100 is increased, without affecting the use of the internal space of the housing 100. And since solar energy is a clean energy, pollution can be avoided.

[0153] The other components and operations of the pool cleaning robot 1 according to the embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail here.

[0154] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0155] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A pool cleaning robot, characterized in that, Comprising: A housing, the housing is provided with an opening, a filtering chamber and a liquid passage that are sequentially communicated. The pool cleaning robot moves in a horizontal direction. The housing has a first side and a second side that are oppositely arranged in the moving direction of the pool cleaning robot. The first side is provided with the opening and a front drain port, and the second side is provided with a rear drain port. The liquid passage is respectively communicated with the front drain port and the rear drain port; A pump body, the pump body is arranged in the liquid passage; Wherein, the pool cleaning robot has a forward mode and a reverse mode. When the pool cleaning robot is in the forward mode, the pump body guides the liquid in the liquid passage to the rear drain port. When the pool cleaning robot is in the reverse mode, the pump body guides the liquid in the liquid passage to the front drain port.

2. The pool cleaning robot according to claim 1, characterized in that The pump body includes: An impeller, the rotation axis of the impeller extends along the moving direction of the pool cleaning robot. When the pool cleaning robot is in the forward mode, the impeller rotates in a first direction. When the pool cleaning robot is in the reverse mode, the impeller rotates in a second direction. The first direction is opposite to the second direction.

3. The pool cleaning robot according to claim 2, characterized in that, The filtering chamber and the liquid passage are selectively communicated through a front water inlet or a rear water inlet. Both the front water inlet and the rear water inlet are communicated with the liquid passage. The front water inlet is located between the impeller and the first side, and the rear water inlet is located between the impeller and the second side; Wherein, when the pool cleaning robot is in the forward mode, the front water inlet is communicated with the filtering chamber, and the rear water inlet is disconnected from the filtering chamber; When the pool cleaning robot is in the reverse mode, the front water inlet is disconnected from the filtering chamber, and the rear water inlet is communicated with the filtering chamber.

4. The pool cleaning robot according to claim 3, characterized in that, The distance between the front water inlet and the first side is greater than the distance between the front water inlet and the second side, and the distance between the rear water inlet and the first side is greater than the distance between the rear water inlet and the second side; and / or The side wall of the liquid passage facing the filtering chamber in the horizontal direction has an inclined section, and the inclined section is inclined with respect to the rotation axis of the impeller. The rotation axis of the impeller passes through the inclined section.

5. The pool cleaning robot according to claim 3, wherein Baffles are provided at the front water inlet and the rear water inlet. The baffles are rotatably connected to the housing between an open position and a closed position; When the baffle is in the open position, the liquid passage and the filtering chamber are communicated through the front water inlet or the rear water inlet corresponding to the baffle; When the baffle is in the closed position, it prevents the liquid passage and the filtering chamber from being communicated through the front water inlet or the rear water inlet corresponding to the baffle.

6. The pool cleaning robot according to claim 3, characterized in that, The housing is provided with a plurality of the liquid passages, the plurality of liquid passages are arranged at intervals, and the arrangement direction of the plurality of liquid passages, the moving direction of the housing and the vertical direction are perpendicular to each other; The plurality of liquid passages include a first liquid passage and a second liquid passage, and the first liquid passage and the second liquid passage are respectively arranged on opposite sides of the filtering chamber.

7. The pool cleaning robot according to claim 6, wherein The pool cleaning robot has a first steering mode and a second steering mode. When the pool cleaning robot is in the first steering mode, the impeller in the first liquid passage rotates in the first direction, and the impeller in the second liquid passage rotates in the second direction. When the pool cleaning robot is in the second steering mode, the impeller in the first liquid passage rotates in the second direction, and the impeller in the second liquid passage rotates in the first direction.

8. The pool cleaning robot according to claim 7, wherein The front water inlet includes a first front water inlet and a second front water inlet, and the rear water inlet includes a first rear water inlet and a second rear water inlet. The first front water inlet and the first rear water inlet are both communicated with the first liquid passage, and the second front water inlet and the second rear water inlet are both communicated with the second liquid passage; Wherein, when the pool cleaning robot is in the first steering mode, the first front water inlet is communicated with the filtration chamber, the first rear water inlet is disconnected from the filtration chamber, the second front water inlet is disconnected from the filtration chamber, and the second rear water inlet is communicated with the filtration chamber; When the pool cleaning robot is in the second steering mode, the first front water inlet is disconnected from the filtration chamber, the first rear water inlet is communicated with the filtration chamber, the second front water inlet is communicated with the filtration chamber, and the second rear water inlet is disconnected from the filtration chamber.

9. The pool cleaning robot according to claim 8, wherein, The first front water inlet, the second front water inlet, the first rear water inlet, and the second rear water inlet are located between the first liquid passage and the second liquid passage.

10. The pool cleaning robot according to any one of claims 1-9, characterized in that, The liquid passage is located below the filtration chamber; and / or The pool cleaning robot further includes a filtration device. The filtration device is slidably disposed in the filtration chamber. At least one of the housing and the filtration device is provided with a filter screen. The filter screen covers the liquid passage for filtering the liquid flowing from the filtration chamber to the liquid passage.

11. The pool cleaning robot according to any one of claims 1-9, characterized in that, Further included: A traveling device rotatably disposed on the housing for contacting the bottom wall of the pool.

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