Underwater swimming pool cleaning robot with rear gravity center

Abstract

The utility model discloses an underwater swimming pool cleaning robot structure with the rear gravity center. The underwater swimming pool cleaning robot structure comprises a main body shell, a first driving mechanism, a cleaning assembly and a moving mechanism. The main body shell is divided into the preset first space and the preset second space in the preset first direction, the cleaning assembly is arranged in the first space, the first driving mechanism is arranged in the second space, the moving mechanism is connected with the first driving mechanism, and the moving mechanism is partially located in the first space; part is located in the second space; the total weight of all the components in the first space is smaller than that of all the components in the second space, and the gravity center of the underwater swimming pool cleaning robot is located in the second space. The front end of the robot can be more naturally inclined, the wall climbing function is achieved, the robot cannot overturn relative to the wall surface, the wall climbing stability and reliability of the robot can be effectively improved, and the cleaning capacity of the robot on vertical and inclined wall bodies can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater swimming pool cleaning robots, in particular to an underwater swimming pool cleaning robot with a rearward center of gravity. Background Art

[0002] The underwater pool cleaning robot is a device specially designed for automatically cleaning swimming pools and pools. It can complete the cleaning task efficiently through automated settings.

[0003] When it is necessary to clean the vertical pool wall, traditional underwater pool cleaning robots generally achieve the wall climbing function by setting up a suction cup structure, etc. However, this method is often limited by the surface material and cleanliness of the pool. The cleaning robot cannot climb the wall well, and is more likely to become unstable and detach from the wall during the cleaning process, which makes the cleaning robot less efficient in cleaning the pool wall. Utility Model Content

[0004] The technical problem solved by the present invention is to address the defects in the above-mentioned prior art and provide an underwater pool cleaning robot with a rearward center of gravity to solve at least one of the problems raised in the above-mentioned background technology. The specific technical solutions adopted are as follows:

[0005] An underwater pool cleaning robot with a rearward center of gravity comprises a main body housing, a first drive mechanism, a cleaning assembly, and a moving mechanism. The cleaning assembly is connected to one end of the main body housing; the cleaning assembly is partially located within the main body housing and partially exposed relative to the main body housing; and the first drive mechanism is disposed within the main body housing at an end away from the cleaning assembly.

[0006] The main shell is divided into a preset first space and a preset second space in sequence along a preset first direction; the cleaning component is located in the first space, and the first driving mechanism is located in the second space; the moving mechanism is connected to the first driving mechanism, and the moving mechanism is partially located in the first space and partially located in the second space.

[0007] The total weight of all components in the first space is less than the total weight of all components in the second space, so that the center of gravity of the underwater pool cleaning robot is located in the second space.

[0008] The second space is smaller than or equal to the first space. In one specific embodiment, the end of the underwater pool cleaning robot equipped with the cleaning assembly is the front end, and the end farther from the cleaning assembly is the rear end. It should be noted that the volume of the rearward-facing second space can be smaller than the first space, as long as the center of gravity of the underwater pool cleaning robot can be positioned rearward relative to the robot as a whole. In practical applications, the midpoint of the line connecting the front and rear ends of the underwater pool cleaning robot in the first direction serves as the dividing line between the first and second spaces.

[0009] In one embodiment, unlike the design of the conventional method of evenly arranging each component, the first driving mechanism, the second driving mechanism, the battery assembly, and the battery and other heavy components are all arranged in the rear position inside the robot, i.e., in the preset second space, which makes the overall center of gravity of the robot located in the preset second space, i.e., in the rear. In use, the stability of the robot moving on a surface with an inclination can be significantly improved.

[0010] The center of gravity refers to the point of concentration of the gravity of an object, and is also the center of balance of the object. In an underwater pool cleaning robot, the position of the center of gravity affects the stability and posture control ability of the robot in water. When the center of gravity of the underwater pool cleaning robot is arranged in the rear, the front end of the robot, i.e., the end with the cleaning roller brush, is the forward direction of the robot when the robot needs to climb the wall. When the robot approaches the pool wall, due to the rear center of gravity, the position of the center of gravity generates a downward moment, and the front end of the robot can better tilt relative to the rear end and naturally tilt. In this process, the robot can better climb the pool wall and maintain on a vertical or inclined surface.

[0011] In some embodiments, the moving mechanism includes a front wheel assembly located in the first space and a rear wheel assembly located in the second space, and the connection relationship between the moving mechanism and the first driving mechanism can be:

[0012] The front wheel assembly and the rear wheel assembly are respectively connected to the first driving mechanism; or

[0013] Further comprising a track structure connected to the front wheel assembly and the rear wheel assembly, respectively; the rear wheel assembly is connected to the first driving mechanism and is used to rotate under the driving of the first driving mechanism and drive the front wheel assembly to rotate through the track structure. By arranging the track structure, the front wheel assembly is not directly connected to the first driving mechanism, but is driven to rotate by the track structure under the rotation of the rear wheel assembly, forming a rear-drive system dominated by the rear wheel assembly, which can generate traction between the rear wheel assembly and the front wheel assembly, so that the robot can more effectively climb and move. The arrangement of the track structure can make the entire cleaning robot more closely fit the pool bottom and the pool wall, which can reduce the probability of slipping of the front and rear wheels and ensure more stable and reliable movement.

[0014] In some embodiments, the cleaning assembly includes a roller brush shaft and a cleaning roller brush sleeved on the roller brush shaft; the cleaning roller brush is located at the bottom of one end of the main body shell, and the cleaning roller brush part is exposed relative to the main body shell.

[0015] Both ends of the roller brush shaft are directly or indirectly connected to the rotating shaft of the front wheel assembly; the cleaning roller brush is used to rotate under the driving of the front wheel assembly.

[0016] In some embodiments, a transmission member is further included, one end of the transmission member is connected to the rotating shaft of the rolling brush, and the other end of the transmission member is connected to the rotating shaft of the front wheel assembly; the transmission member is used to drive the rotating shaft of the rolling brush and the rolling brush to rotate under the rotation of the front wheel assembly.

[0017] In some embodiments, the cleaning assembly further includes a filter box, the filter box is provided with a water outlet and a water inlet, and the water inlet is located at the cleaning rolling brush.

[0018] In some embodiments, a filter bag is arranged in the filter box, and an opening for taking out or installing the filter bag from the filter box is arranged on the main body shell at a position corresponding to the filter box.

[0019] In some embodiments, a first flow guide opening and a second flow guide opening are further included, the first flow guide opening is located on the top surface of the main body shell corresponding to the second space, the second flow guide opening is located on the bottom surface of the main body shell corresponding to the first space, and the water flow enters the second flow guide opening along a preset second direction and flows out of the first flow guide opening; the second direction is perpendicular to the bottom surface of the main body shell. By arranging the first flow guide opening and the second flow guide opening at positions corresponding to different spaces, the direction of the water flow between different spaces can be more stable, and the overall operation effect of the robot is more stable.

[0020] In some embodiments, a sealing assembly, a second driving mechanism, and a power device are further included in the second space. The first driving mechanism and the second driving mechanism are located in the sealing assembly; the moving mechanism is sealingly connected to the first driving mechanism through the sealing assembly, and the power device is sealingly connected to the second driving mechanism through the sealing assembly. The power device is used to adjust the flow rate of the water flow passing through the power device, so that the water flow is sprayed out of the second flow guide opening.

[0021] In actual application, when the robot has been preliminarily maintained on an inclined or vertical wall, the bottom surface of the main body shell is parallel to the wall surface, and the second direction is then perpendicular to the plane in which the wall surface is located. The second flow guide opening faces the wall surface at this time, and through the adjustment of the power device, the second flow guide opening continuously sucks in the water flow on the side facing the wall surface, the water flow enters the robot interior along the second direction, and is then sprayed out of the first flow guide opening on the main body shell. This enables the main body shell to continuously obtain an adsorption force to the wall surface in the second direction, and the water flow sprayed out of the first flow guide opening further generates a counter-thrust force to press the main body shell to the side of the wall surface. This enables the robot to stably adsorb on the wall during the working process, and has excellent wall climbing ability.

[0022] In some embodiments, the power device includes a propeller and a power rotating shaft, and the propeller is rotatably connected to the second driving mechanism through the power rotating shaft in the preset second direction.

[0023] In some specific embodiments, a battery assembly is further included in the second space, the battery assembly comprising a battery and a charging assembly, the battery being connected to the first driving mechanism, one end of the charging assembly being connected to the battery and the other end being exposed relative to the main body shell for connection with an external charging mechanism. In actual application, the exposed end of the charging assembly relative to the main body shell is covered with a waterproof seal. In actual application, the battery assembly and the driving mechanism are the heaviest components in the underwater swimming pool cleaning robot, and by arranging the battery assembly and the driving mechanism in the second space of the main body shell, the center of gravity of the robot is located in the rear second space, and the center of gravity of the robot is arranged at the rear.

[0024] In one specific embodiment, the battery is located in the sealing assembly, one end of the charging assembly is sealingly connected to the battery, and the other end is also covered with a waterproof seal. By arranging various waterproof sealing structures, the battery assembly is isolated from water, reducing the probability of external water intrusion into the battery and other live components, and further improving the safety factor of the robot.

[0025] Beneficial effects: The application provides an underwater swimming pool cleaning robot with a rear center of gravity. By dividing the main body shell into a preset first space and a second space along a preset first direction, and arranging the positions of various components, the total weight of all components in the first space is less than the total weight of all components in the second space, so that the center of gravity of the underwater swimming pool cleaning robot is located in the second space. The front end of the robot can be tilted more naturally, and the function of climbing the wall is realized. The robot will not overturn relative to the wall, which can effectively improve the stability and reliability of the robot in climbing the wall, and the cleaning ability of the robot on vertical and inclined walls. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0027] Figure 1 It is a cross-sectional view of the present application on C-C line.

[0028] Figure 2 It is a schematic view of a three-dimensional structure of the present application;

[0029] Figure 3 It is a schematic view of a side view structure of the present application;

[0030] Figure 4 It is a schematic view of a bottom view structure of the present application;

[0031] Figure 5 A top view structural schematic diagram of the utility model;

[0032] Figure 6 A schematic diagram of the wall climbing process of the underwater swimming pool cleaning robot in the utility model;

[0033] Figure 7 A partial perspective schematic diagram in the utility model.

[0034] The reference signs and names in the drawing are as follows: 1-main body shell; 11-opening; 12-first flow guide opening; 13-second flow guide opening; 2-first driving mechanism; 3-cleaning assembly; 31-roller brush pivot; 32-cleaning roller brush; 33-filter box; 4-moving mechanism; 41-front wheel assembly; 42-rear wheel assembly; 43-track structure; 44-transmission member; 5-sealing assembly; 6-second driving mechanism; 61-power device; 611-screw propeller; 612-power pivot; 7-battery assembly; 71-battery; A-preset first space; B-preset second space; E-preset first direction; F-preset second direction. DETAILED DESCRIPTION

[0035] The concept, specific structure and generated technical effects of the utility model will be clearly and completely described below in combination with embodiments and drawings, so as to fully understand the purpose, features and effects of the utility model.

[0036] In the following, various embodiments of the utility model will be described more fully. The utility model can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit various embodiments of the utility model to the specific embodiments disclosed herein, but the utility model should be understood to cover all adjustments, equivalents and / or alternatives falling within the spirit and scope of various embodiments of the utility model.

[0037] In the following, the term "include" or "may include" used in various embodiments of the utility model indicates the existence of the disclosed functions, operations or elements, and does not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the utility model, the terms "include", "have" and their homonyms are only intended to represent a specific feature, number, step, operation, element, component or combination of the foregoing, and should not be understood as first excluding the existence or addition of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing.

[0038] In various embodiments of the present application, the expression "or" or "at least one of A or / and B" includes any combination of the listed terms or all combinations of the listed terms. For example, the expression "A or B" or "at least one of A or / and B" can include A, can include B, or can include both A and B.

[0039] The expressions used in various embodiments of the present application, such as "first", "second", etc., can modify various constituent elements in various embodiments, but can not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of various embodiments of the present application, a first element can be referred to as a second element, and similarly, a second element can be referred to as a first element.

[0040] It should be noted that: in the present application, unless otherwise expressly specified and defined, the terms "mounting", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, those skilled in the art need to understand that the terms indicating the orientation or position relationship in the text are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] The terms used in various embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit various embodiments of the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by those skilled in the art to which various embodiments of the present application belong. The terms such as those defined in a general dictionary will be interpreted to have the same meaning as the context in the relevant art and will not be interpreted to have an idealized meaning or an overly formal meaning, unless clearly defined in various embodiments of the present application.

[0043] Embodiment one

[0044] The embodiment provides a swimming pool cleaning robot with a rear center of gravity, and can solve the problem that an existing underwater robot has difficulty in wall climbing, and specifically as follows.

[0045] The swimming pool cleaning robot with the rear center of gravity comprises a main body shell 1, a first driving mechanism 2, a cleaning assembly 3 and a moving mechanism 4. The cleaning assembly 3 is connected to one end of the main body shell 1; the cleaning assembly 3 is partially located inside the main body shell 1 and partially exposed relative to the main body shell 1; and the first driving mechanism 2 is arranged inside the main body shell 1 and away from the cleaning assembly 3.

[0046] The main body shell 1 is divided into a preset first space and a preset second space in a preset first direction; the cleaning assembly 3 is located in the first space, and the first driving mechanism 2 is located in the second space; and the moving mechanism 4 is connected to the first driving mechanism 2, and the moving mechanism 4 is partially located in the first space and partially located in the second space. Specifically, the cross section of the swimming pool cleaning robot on the C-C line is as shown in Figure 5 . Figure 1

[0047] The total weight of all components in the first space is less than the total weight of all components in the second space, so that the center of gravity of the swimming pool cleaning robot is located in the second space.

[0048] In the embodiment, the size of the second space is less than or equal to the size of the first space, and the end provided with the cleaning assembly 3 is the front end of the swimming pool cleaning robot, and the end away from the end provided with the cleaning assembly 3 is the rear end of the swimming pool cleaning robot. It should be noted that as long as the center of gravity of the swimming pool cleaning robot can be set to be rearward relative to the whole swimming pool cleaning robot, the volume of the rear second space can be less than the volume of the first space. In actual application, the first space and the second space are divided by the midpoint of the line connecting the front end and the rear end of the swimming pool cleaning robot in the first direction. The preset first direction is as shown by the direction E in Figures 1-5 . The preset space is as shown in Figure 3 and Figure 4 , the first space is as shown in the space marked by the A area, and the second space is as shown in the space marked by the B area in the figure.

[0049] The center of gravity refers to the point of concentration of the gravity of an object, and is also the center point of the balance of the object. In the swimming pool cleaning robot, the position of the center of gravity affects the stability and attitude control ability of the robot in water.

[0050] ​In one embodiment, unlike the design of the traditional method of evenly arranging each component, the embodiment is arranged in the preset second space, which is the rear position of the robot, and the first driving mechanism 2, the second driving mechanism 6, the battery assembly 7, and the battery 71 and other heavy components are arranged in the preset second space, so that the overall center of gravity of the robot is located in the preset second space, and the overall rear position is improved. In use, the stability of the robot moving on a surface with an inclination can be significantly improved.

[0051] When the center of gravity of the underwater pool cleaning robot is set to the rear, when the robot needs to climb the wall, the front end of the robot, that is, the end with the cleaning roller 32, is the forward direction of the robot. When the robot approaches the pool wall, due to the rear center of gravity, the center of gravity of the robot produces a downward torque, and the front end of the robot can be better tilted relative to the rear end. In this process, the robot can better climb the pool wall and maintain on a vertical or inclined surface.

[0052] In some embodiments, the moving mechanism 4 includes a front wheel assembly 41 located in the first space and a rear wheel assembly 42 located in the second space, and the connection relationship between the moving mechanism 4 and the first driving mechanism 2 can be:

[0053] The front wheel assembly 41 and the rear wheel assembly 42 are respectively connected to the first driving mechanism 2; or

[0054] It also includes a track structure 43, and the track structure 43 is respectively connected to the front wheel assembly 41 and the rear wheel assembly 42; the rear wheel assembly 42 is connected to the first driving mechanism 2, and is used to rotate under the driving of the first driving mechanism 2 and drive the front wheel assembly 41 to rotate through the track structure 43. By arranging the track structure 43, the front wheel assembly 41 is not directly connected to the first driving mechanism 2, but is driven to rotate by the track structure 43 under the rotation of the rear wheel assembly 42, forming a rear drive system dominated by the rear wheel assembly 42, which can make the rear wheel assembly 42 have a traction force on the front wheel assembly 41, so that the robot can more effectively climb and move. The arrangement of the track structure 43 can make the entire cleaning robot more closely fit the pool bottom and the pool wall, which can reduce the probability of slipping of the front and rear wheels and ensure more stable and reliable movement.

[0055] In some embodiments, the cleaning assembly 3 includes a roller shaft 31 and a cleaning roller 32 sleeved on the roller shaft 31; the cleaning roller 32 is located at the bottom of one end of the main body shell 1, and part of the cleaning roller 32 is exposed relative to the main body shell 1.

[0056] Both ends of the roller shaft 31 are directly or indirectly connected to the rotating shaft of the front wheel assembly 41; the cleaning roller 32 is used to rotate under the driving of the front wheel assembly 41.

[0057] In some embodiments, a transmission member 44 is further included, one end of the transmission member 44 is connected to the rolling brush rotating shaft 31, and the other end is connected to the rotating shaft of the front wheel assembly 41; the transmission member 44 is used to drive the rolling brush rotating shaft 31 and the rolling brush to rotate under the rotation of the front wheel assembly 41. In actual application, the two ends of the rolling brush rotating shaft 31 are directly or indirectly connected to the rotating shaft of the front wheel assembly 41, which can drive the cleaning rolling brush 32 to rotate under the rotation of the front wheel assembly 41, so that the cleaning rolling brush 32 has the same rotation rhythm as the front wheel assembly 41, and it is not necessary to additionally set a driving mechanism to drive the rolling brush, which can effectively utilize resources. In one embodiment, the transmission member 44 can be a transmission gear, as shown in the figure, the rolling brush rotating shaft 31 is indirectly connected to the rotating shaft of the front wheel assembly 41 by setting the transmission gear, and then the number and size of the transmission gear can be adjusted to relatively adjust the rotation speed of the cleaning rolling brush 32 relative to the front wheel assembly 41, so that the rotation speed of the cleaning rolling brush 32 can be adjusted according to the actual cleaning environment. Figure 7

[0058] In some embodiments, the cleaning assembly 3 further includes a filter box 33, the filter box 33 is provided with a water outlet and a water inlet, and the water inlet is located at the cleaning rolling brush 32. By setting the water inlet in the working area of the cleaning rolling brush 32, the filter box 33 can receive the external garbage and dirt swept by the cleaning rolling brush 32 in the largest range, thereby improving the cleaning ability of the cleaning assembly 3.

[0059] In some embodiments, a filter bag is arranged in the filter box 33, and an opening 11 for taking out or installing the filter bag from the filter box 33 is arranged on the main body shell 1 at a position corresponding to the filter box 33. In actual application, one or more layers of filter structures can be arranged in the filter box 33 to filter the water flow entering the filter box 33. By arranging a filter bag that can be taken out in the filter box 33, the filter bag can be disposable or reusable, which enables the user to take out the filter bag through the opening 11 after each stage or each cleaning work is completed, and quickly clean or replace the filter bag, thereby accelerating the cleaning of the filter box 33 and improving the overall cleaning efficiency.

[0060] In some embodiments, a first water guide opening 12 and a second water guide opening 13 are further included. The first water guide opening 12 is located on the top surface of the main body shell 1 corresponding to the second space, and the second water guide opening 13 is located on the bottom surface of the main body shell 1 corresponding to the first space, which is used to make the water flow enter from the second water guide opening 13 along a preset second direction and flow out from the first water guide opening 12; the second direction is perpendicular to the bottom surface of the main body shell 1. The preset second direction is specifically as shown in the figure. Figure 1 2 ​​The first flow guide 12 and the second flow guide 13 are arranged at positions corresponding to different spaces, so that the flow direction between the water flows in different spaces can be more stable, and the overall operation effect of the robot is more stable.

[0061] In some embodiments, the robot further comprises a sealing assembly 5, a second driving mechanism 6 and a power device 61 located in the second space. The first driving mechanism 2 and the second driving mechanism 6 are located in the sealing assembly 5; the moving mechanism 4 is sealingly connected to the first driving mechanism 2 through the sealing assembly 5, and the power device 61 is sealingly connected to the second driving mechanism 6 through the sealing assembly 5. The power device 61 is used to adjust the flow rate of the water flow passing through the power device 61, so that the water flow is sprayed out of the second flow guide 13. In one embodiment, the sealing assembly 5 is a sealed waterproof box. By placing the first driving mechanism and the second driving mechanism in the sealed waterproof box, the water flow can be prevented from entering the electrically charged driving mechanism when the water flow is accelerated by the first flow guide 12 and the second flow guide 13 in the main body shell 1, and the safety performance of the internal components of the robot can be further improved. In actual application, a special water channel can be arranged between the first flow guide 12, the second flow guide 13 and the water outlet of the filter box 33, so that the water flow passing through the inside of the main body shell 1 does not come into contact with the sealing assembly 5 and other components in the sealing assembly 5, achieving a multi-layer waterproof sealing function.

[0062] In actual application, when the robot has been preliminarily maintained on an inclined or vertical wall, the bottom surface of the main body shell 1 is parallel to the wall surface, and the second direction is perpendicular to the plane of the wall surface at this time. The second flow guide 13 faces the wall surface at this time, and through the adjustment of the power device 61, the second flow guide 13 continuously sucks in water flow on the side facing the wall surface, the water flow enters the inside of the robot along the second direction, and then is sprayed out of the first flow guide 12 on the main body shell 1. This makes the main body shell 1 continuously obtain an adsorption force to the wall surface in the second direction, and the water flow sprayed out of the first flow guide 12 further generates a counter-thrust force, which presses the main body shell 1 to the side of the wall surface, so that the robot can be stably adsorbed on the wall during operation, and has excellent wall climbing ability. The structure of a specific robot adsorbed on the wall of a pool is shown in the schematic view, wherein the direction E and the direction F represent the first direction and the second direction respectively, and the remaining arrows represent the direction of the water flow. At this time, the first direction is the forward direction of the robot. Figure 6

[0063] In some embodiments, the power device 61 comprises a propeller 611 and a power rotating shaft 612, and the propeller 611 is rotatably connected to the second driving mechanism 6 through the power rotating shaft 612 in the preset second direction.

[0064] ​In some specific embodiments, a battery assembly 7 is further included in the second space, the battery assembly 7 comprising a battery 71 connected to the first driving mechanism 2 and a charging assembly, one end of the charging assembly being connected to the battery 71 and the other end being exposed relative to the main body shell 1 for connection with an external charging mechanism. In actual application, the exposed end of the charging assembly relative to the main body shell 1 is covered with a waterproof seal. In actual application, the battery assembly 7 and the driving mechanism are the heaviest components in the underwater swimming pool cleaning robot, and by arranging the battery assembly 7 and the driving mechanism in the second space of the main body shell, the center of gravity of the robot is located in the rear second space, and the center of gravity of the robot is arranged at the rear.

[0065] In one specific embodiment, the battery 71 is located in the sealing assembly 5, one end of the charging assembly is sealingly connected to the battery 71, and the other end is also covered with a waterproof seal. By arranging various waterproof sealing structures, the battery assembly 7 is isolated from water, reducing the probability of external water invading the battery 71 and other live components, and further improving the safety factor of the robot.

[0066] The present embodiment proposes an underwater swimming pool cleaning robot with a rear center of gravity. By dividing the main body shell into a predetermined first space and a second space along a predetermined first direction, and by arranging the positions of various components, the total weight of all components in the first space is less than the total weight of all components in the second space, so that the center of gravity of the underwater swimming pool cleaning robot is located in the second space. The front end of the robot can be tilted more naturally, and the function of climbing the wall is realized, and the robot will not overturn relative to the wall. Further, by arranging the first flow guide, the second flow guide and the power device, the adsorption ability of the robot to the wall is further enhanced. The stability and reliability of the robot in climbing the wall, as well as the cleaning ability to vertical and inclined walls, are effectively improved.

[0067] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A rear-heavy underwater swimming pool cleaning robot, characterized in that, The underwater swimming pool cleaning robot comprises a main body shell, a first driving mechanism, a cleaning assembly and a moving mechanism. The cleaning assembly is connected to one end of the main body shell; the cleaning assembly is partially located inside the main body shell and partially exposed relative to the main body shell; the first driving mechanism is arranged inside the main body shell away from the cleaning assembly. The main body shell is divided into a preset first space and a preset second space along a preset first direction; the cleaning assembly is located in the first space and the first driving mechanism is located in the second space. The moving mechanism is connected to the first driving mechanism; the moving mechanism is partially located in the first space and partially located in the second space. The total weight of all components in the first space is less than the total weight of all components in the second space, so that the center of gravity of the underwater swimming pool cleaning robot is located in the second space.

2. A center-of-gravity-rearward underwater swimming pool cleaning robot according to claim 1, characterized in that, The moving mechanism comprises a front wheel assembly located in the first space and a rear wheel assembly located in the second space. The front wheel assembly and the rear wheel assembly are respectively connected to the first driving mechanism. Or The moving mechanism further comprises a track structure connected to the front wheel assembly and the rear wheel assembly; the rear wheel assembly is connected to the first driving mechanism and rotates under the drive of the first driving mechanism and drives the front wheel assembly to rotate through the track structure.

3. A rear-heavy underwater swimming pool cleaning robot according to claim 2, characterized in that, The cleaning assembly comprises a rolling brush rotating shaft and a cleaning rolling brush sleeved on the rolling brush rotating shaft; the cleaning rolling brush is located at the bottom of one end of the main body shell and partially exposed relative to the main body shell. Both ends of the rolling brush rotating shaft are directly or indirectly connected to the rotating shaft of the front wheel assembly; the cleaning rolling brush rotates under the drive of the front wheel assembly.

4. A rear-heavy underwater swimming pool cleaning robot according to claim 3, characterized in that, The moving mechanism further comprises a transmission member connected to one end of the rolling brush rotating shaft and the rotating shaft of the front wheel assembly; the transmission member drives the rolling brush rotating shaft and the rolling brush to rotate under the rotation of the front wheel assembly.

5. A rear-heavy underwater swimming pool cleaning robot according to claim 3, characterized in that, The cleaning assembly further comprises a filter box provided with a water outlet and a water inlet; the water inlet is located at the cleaning rolling brush.

6. A rear-heavy underwater swimming pool cleaning robot according to claim 5, characterized in that The filter box is provided with a filter bag; the main body shell is provided with an opening corresponding to the position of the filter box for taking out or installing the filter bag from the filter box.

7. The rear-heavy underwater swimming pool cleaning robot of claim 1, wherein, The moving mechanism further comprises a first flow guide opening and a second flow guide opening. The first flow guide opening is located on the top surface of the main body shell corresponding to the second space; the second flow guide opening is located on the bottom surface of the main body shell corresponding to the first space; water flows into the second flow guide opening along a preset second direction and flows out of the first flow guide opening; the second direction is perpendicular to the bottom surface of the main body shell.

8. A rear-heavy underwater swimming pool cleaning robot according to claim 7, characterized in that The moving mechanism further comprises a sealing assembly, a second driving mechanism and a power device located in the second space. The first driving mechanism and the second driving mechanism are located in the sealing assembly; the moving mechanism is sealedly connected to the first driving mechanism through the sealing assembly; the power device is sealedly connected to the second driving mechanism through the sealing assembly; the power device adjusts the flow rate of water flow passing through the power device and sprays water from the second flow guide opening.

9. A rear-heavy underwater swimming pool cleaning robot according to claim 8, characterized in that, The power device comprises a propeller and a power rotating shaft, the propeller is rotatably connected with the second driving mechanism through the power rotating shaft in a preset second direction.

10. The rear-heavy underwater swimming pool cleaning robot of claim 1, wherein, The battery assembly is also arranged in the second space, the battery assembly comprises a battery and a charging assembly, the battery is connected with the first driving mechanism, one end of the charging assembly is connected with the battery, and the other end is exposed relative to the main body shell and used for being connected with an external charging mechanism.

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