Rolling brush device and photovoltaic cleaning robot

Abstract

The utility model provides a rolling brush device and a photovoltaic cleaning robot. The rolling brush device comprises a robot body, a movable support, a rolling brush and an outer cover. The robot body is provided with a supporting piece. The movable support is movably connected to the supporting piece and can float in the vertical direction relative to the supporting piece. The rolling brush is rotatably connected to the movable bracket and is used for cleaning dust or pollutants on the photovoltaic panel; the outer cover is located on the upper side of the rolling brush, the outer cover covers part of the rolling brush and blocks sewage splashed backwards through the rolling brush, so that the sewage splashed in the rotating process of the rolling brush is blocked, the sewage is prevented from making contact with the robot body or the movable support, and the cleanliness of the rolling brush device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic cleaning robots, and in particular to a roller brush device and a photovoltaic cleaning robot. Background Technology

[0002] With the development of technology, photovoltaic modules are gradually being applied to the power industry. The main function of photovoltaic modules is to convert solar energy into electrical energy for use in people's lives, industry and commerce. Photovoltaic panels are a type of photovoltaic module. Photovoltaic cleaning robots are used to clean photovoltaic modules, and the roller brush device is a part of the photovoltaic cleaning robot.

[0003] In the prior art, the existing roller brush device includes a robot body, a movable support, and a roller brush. The robot body is provided with a support member; the movable support is movably connected to the support member and can float relative to the support member in the vertical direction; the roller brush is rotatably connected to the movable support member and is used to clean dust or contaminants on the photovoltaic panel. However, the roller brush splashes out sewage during rotation, resulting in poor cleanliness of the existing roller brush device. Utility Model Content

[0004] The purpose of this utility model is to provide a roller brush device and a photovoltaic cleaning robot. The robot body is provided with a support member; a movable bracket is movably connected to the support member and can float vertically relative to the support member; the roller brush is rotatably connected to the movable bracket and is used to clean dust or pollutants on the photovoltaic panel; an outer cover is located on the upper side of the roller brush, the outer cover covers part of the roller brush and blocks the sewage splashed backward by the roller brush, so as to block the sewage splashed by the roller brush during rotation, avoid sewage contact with the robot body or the movable bracket, and ensure the cleanliness of the roller brush device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller brush device, which is applied to a photovoltaic cleaning robot; the roller brush device includes:

[0006] The robot's main body is equipped with supporting components;

[0007] The movable bracket is movably connected to the support member and can float relative to the support member in the vertical direction;

[0008] A roller brush, rotatably connected to the movable bracket, is used to clean dust or contaminants on the photovoltaic panel;

[0009] An outer cover is located above the roller brush, covering a portion of the roller brush and blocking wastewater splashed backward by the roller brush.

[0010] Optionally, the outer cover is arranged in an arc shape, and the outer cover is connected to the movable bracket in a split or integrated manner.

[0011] Optionally, the outer cover is connected to a water spraying element, which is arranged in a downward inclined direction and sprays water onto the roller brush or the area in front of the roller brush.

[0012] Optionally, there are multiple water spray elements, which are arranged along the length of the outer cover and are interconnected.

[0013] Optionally, the roller brush device further includes a motor and a first transmission module; one end of the first transmission module is connected to the output end of the motor, and the other end of the first transmission module is connected to the roller brush, driving the roller brush to rotate along its own axis; the first transmission module is a synchronous belt transmission module, a chain transmission module, or a connecting belt transmission module.

[0014] Optionally, when the first transmission module is a synchronous belt transmission module, the synchronous belt transmission module includes a driving pulley, a synchronous belt, and a driven pulley;

[0015] The driving wheel is connected to the output end of the motor, and the driven wheel is connected to the connecting end of the roller brush; the synchronous belt is disposed between the driving wheel and the driven wheel, and pulls the driving wheel and the driven wheel.

[0016] Optionally, the roller brush device further includes a shock absorber disposed between the support member and the movable bracket. The shock absorber has a first shock absorber arm that elastically contacts the movable bracket and applies an elastic force to the movable bracket.

[0017] Optionally, the movable support is swayably connected to the robot body and swings in the vertical direction;

[0018] The roller brush lifts the movable support upwards when it comes into contact with an object on the photovoltaic panel.

[0019] Optionally, the robot body is provided with a first arm;

[0020] The movable support is hinged to the robot body and is located near or away from the first arm;

[0021] The shock absorber is connected to the first support arm, and the first shock absorber arm contacts the movable bracket; the shock absorber is a torsion spring.

[0022] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic cleaning robot, including the aforementioned roller brush device.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This utility model provides a roller brush device and a photovoltaic cleaning robot. The robot body is equipped with a support member; a movable bracket is movably connected to the support member and can float vertically relative to the support member; a roller brush is rotatably connected to the movable bracket and is used to clean dust or pollutants on the photovoltaic panel; an outer cover is located above the roller brush, covering part of the roller brush and blocking wastewater splashed backward by the roller brush, thereby preventing wastewater from splashing out during the rotation of the roller brush, avoiding contact between wastewater and the robot body or movable bracket, and ensuring the cleanliness of the roller brush device. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0027] Figure 1 A schematic diagram of a roller brush device according to an embodiment of this application is shown.

[0028] Figure 2 An exploded view of a brush device according to an embodiment of this application is shown.

[0029] Figure 3 A partial structural schematic diagram of a roller brush device according to an embodiment of this application is shown.

[0030] Figure 4 A schematic diagram of the outer casing of a roller brush device according to an embodiment of this application is shown.

[0031] Figure 5 A schematic diagram showing the connection between the motor and the first transmission module of a roller brush device according to an embodiment of this application is shown.

[0032] Figure 6 A schematic diagram of a support base for a roller brush device according to an embodiment of this application is shown.

[0033] Figure 7 A schematic diagram of the first arm and shock absorber of a roller brush device according to an embodiment of this application is shown.

[0034] Figure Labels

[0035] 100. Roller brush device;

[0036] 10. Robot body; 11. Support component; 12. First arm; 12a. Through hole; 13. Second arm;

[0037] 20. Movable bracket; 20a. Threaded hole; 20b. Groove; 21. Handle;

[0038] 30. Roller brush;

[0039] 40. Outer cover; 41. Water spray components;

[0040] 50. Motor; 51. Connecting rod; 52. Universal joint;

[0041] 60. First transmission module;

[0042] 70. Support base; 71. Guide arm; 71a. Elongated hole;

[0043] 80. Shock absorber; 81. First shock absorber arm; 82. Second shock absorber arm. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] Please refer to the attached document. Figures 1-7 This application provides a roller brush device 100, which is applied to a photovoltaic cleaning robot. The roller brush device 100 is used to clean photovoltaic panels and block sewage splashed backward by the roller brush 30.

[0046] Please refer to the attached document. Figures 1-7 In this embodiment, the roller brush device 100 includes a robot body 10, a movable support 20, a roller brush 30, and an outer cover 40. The robot body 10 is provided with a support member 11. The movable support 20 is movably connected to the support member 11 and can float relative to the support member 11 in the vertical direction. The roller brush 30 is rotatably connected to the movable support 20 and is used to clean dust or contaminants on the photovoltaic panel. The outer cover 40 is located above the roller brush 30, covers part of the roller brush 30, and blocks the sewage splashed backward by the roller brush 30, so as to block the sewage splashed by the roller brush 30 during rotation, avoid sewage contact with the robot body 10 or the movable support 20, and ensure the cleanliness of the roller brush device 100.

[0047] Please refer to the attached document. Figures 1-4In this embodiment, the robot body 10 serves as a support component of the roller brush device 100, and is used to support the movable bracket 20, the roller brush 30, and the outer cover 40. The robot body 10 is provided with a support member 11.

[0048] The movable support 20 is located on the front or rear side of the robot body 10. The movable support 20 is movably connected to the support member 11 and can float in the vertical direction relative to the support member 11 to facilitate adjustment of the vertical position of the movable support 20 relative to the support member 11.

[0049] The roller brush 30 is located inside the movable bracket 20 and is rotatably connected to the movable bracket 20 to adjust the position of the roller brush 30 relative to the movable bracket 20. The roller brush 30 is used to clean dust or contaminants on the photovoltaic panel to remove dust or contaminants from the photovoltaic panel and ensure the cleanliness of the photovoltaic panel.

[0050] The outer cover 40 is located on the upper side of the roller brush 30. The outer cover 40 covers part of the roller brush 30 and blocks the sewage splashed backward by the roller brush 30, so as to block the sewage splashed out by the roller brush 30 during rotation, prevent sewage from contacting the robot body 10 or the movable support 20, and ensure the cleanliness of the roller brush device 100.

[0051] Please refer to the attached document. Figures 1-4 In this embodiment, the outer cover 40 is arranged in an arc shape so that its inner contour matches the inner contour of the roller brush 30. The outer cover 40 is connected to the movable bracket 20 either separately or as a single piece. When the outer cover 40 is connected to the movable bracket 20 separately, it allows the outer cover 40 to be connected to or detached from the movable bracket 20, thereby improving the ease of disassembly of the outer cover 40 and facilitating individual cleaning of the outer cover 40. When the outer cover 40 is connected to the movable bracket 20 as a single piece, it ensures the stability of the connection between the outer cover 40 and the movable bracket 20, improves the connection strength between the outer cover 40 and the movable bracket 20, and prevents the outer cover 40 from detaching from the movable bracket 20 during operation.

[0052] Please refer to the attached document. Figures 2-4 In this embodiment, the outer cover 40 is connected to a water spray component 41, which is arranged in a downward inclined direction. The water spray component 41 sprays water onto the roller brush 30 or the area in front of the roller brush 30, thereby rinsing the roller brush 30 or the area in front of the roller brush 30 and ensuring the cleanliness of the roller brush 30 or the area in front of the roller brush 30. At the same time, the water spray component 41 works in conjunction with the roller brush 30 to clean dust or contaminants on the photovoltaic panel, further improving the cleanliness of the photovoltaic panel.

[0053] Please refer to the attached document. Figure 4In this embodiment of the application, there are multiple water spray elements 41, which are arranged along the length of the outer cover 40 and are interconnected. By arranging multiple water spray elements 41, the water spraying efficiency of the water spray elements 41 relative to the roller brush 30 or in the front area of ​​the roller brush 30 is increased, thereby improving the cleaning efficiency of the roller brush device 100.

[0054] Please refer to the attached document. Figure 3 and 5 In this embodiment, the roller brush device 100 further includes a motor 50 and a first transmission module 60. The fixed end of the motor 50 is connected to the movable bracket 20, one end of the first transmission module 60 is connected to the output end of the motor 50, and the other end of the first transmission module 60 is connected to the roller brush 30, driving the roller brush 30 to rotate along its own axis. This allows the roller brush 30 to automatically rotate relative to the movable bracket 20 through the cooperation of the motor 50 and the first transmission module 60. The first transmission module 60 is a synchronous belt drive module, a chain drive module, or a connecting belt drive module. The synchronous belt drive module, chain drive module, or connecting belt drive module reduces noise and avoids the use of gear transmission, thus reducing the noise of the roller brush device 100. At the same time, the motor 50 is located on the side of the movable bracket 20 away from the roller brush 30, making full use of the space on the side of the movable bracket 20 away from the roller brush 30, improving the space utilization rate of the roller brush device 100, and reducing the area occupied by the roller brush device 100.

[0055] Please refer to the attached document. Figure 5 A connecting rod 51 is provided between the output end of the motor 50 and one end of the first transmission module 60. The connecting rod 51 is arranged in a horizontal direction. The two ends of the connecting rod 51 are respectively connected to the output end of the motor 50 and one end of the first transmission module 60, and transmit the power output from the output end of the motor 50 to the first transmission module 60. This allows the output end of the motor 50 to be connected to the first transmission module 60 via the connecting rod 51, so that the output end of the motor 50 can drive the first transmission module 60 to rotate under the driving action of the connecting rod 51, thereby realizing the automatic rotation of the roller brush 30 by the cooperation of the motor 50 and the first transmission module 60.

[0056] Please refer to the attached document. Figure 3 and 5The connecting rod 51 is rotatably inserted through the movable bracket 20 to facilitate adjustment of the position of the connecting rod 51 relative to the movable bracket 20. This allows the movable bracket 20 to restrict the position of the connecting rod 51, preventing deformation of the connecting rod 51 during rotation. One end of the connecting rod 51 is connected to the output end of the motor 50 via a universal joint 52 to allow for angle adjustment of the connecting rod 51 relative to the motor 50, avoiding a rigid connection between the connecting rod 51 and the motor 50. The other end of the connecting rod 51 passes through one end of the first transmission module 60, allowing the motor 50 to connect to the first transmission module 60 via the connecting rod 51. The positional deviation between the motor 50 and the first transmission module 60 is adjusted by the universal joint 52 to change the position of the connecting rod 51.

[0057] Please refer to the attached document. Figure 5 In this embodiment, when the first transmission module 60 is a synchronous belt transmission module, the synchronous belt transmission module includes a driving pulley, a synchronous belt, and a driven pulley; the driving pulley is connected to the output end of the motor 50, and the driven pulley is connected to the connection end of the roller brush 30; the synchronous belt is disposed between the driving pulley and the driven pulley, and pulls the driving pulley and the driven pulley, so that the motor 50 can start and drive the driving pulley, the synchronous belt, and the driven pulley to rotate, thereby facilitating the rotation of the roller brush 30 with the rotation of the driven pulley, so as to realize that the roller brush 30 rotates under the drive of the synchronous belt transmission module, avoiding the use of gear transmission and reducing the noise of the roller brush device 100.

[0058] When the first transmission module 60 is a chain drive module, the chain drive module includes a first sprocket, a chain, and a second sprocket; the first sprocket is connected to the output end of the motor 50, and the second sprocket is connected to the connection end of the roller brush 30; the chain is arranged between the first sprocket and the second sprocket, and pulls the first sprocket and the second sprocket, so that the motor 50 can start and drive the first sprocket, the chain, and the second sprocket to rotate, thereby making it easier for the roller brush 30 to rotate with the rotation of the second sprocket, so that the roller brush 30 can rotate under the drive of the chain drive module, avoiding the use of gear transmission and reducing the noise of the roller brush device 100.

[0059] When the first transmission module 60 is a connecting belt transmission module, the connecting belt transmission module includes a first connecting wheel, a connecting belt, and a second connecting wheel; the first connecting wheel is connected to the output end of the motor 50, and the second connecting wheel is connected to the connecting end of the roller brush 30; the connecting belt is disposed between the first connecting wheel and the second connecting wheel, and pulls the first connecting wheel and the second connecting wheel, so that the motor 50 can start and drive the first connecting wheel, the connecting belt, and the second connecting wheel to rotate, thereby facilitating the rotation of the roller brush 30 with the rotation of the second connecting wheel, so that the roller brush 30 can rotate under the drive of the connecting belt transmission module, avoiding the use of gear transmission and reducing the noise of the roller brush device 100.

[0060] Please refer to the attached document. Figure 3 and6 In this embodiment, the roller brush device 100 further includes a support base 70, which is located on the side of the movable bracket 20 facing away from the roller brush 30 and supports the motor 50, so that the movable bracket 20 can support the motor 50 through the support base 70, thus ensuring the positional accuracy of the motor 50 relative to the movable bracket 20.

[0061] Please refer to the attached document. Figure 6 The support base 70 is provided with at least one guide arm 71. The guide arm 71 is installed on the movable bracket 20 and can be adjusted in position relative to the movable bracket 20. This allows the position of the guide arm 71 relative to the movable bracket 20 to be adjusted, thereby facilitating the position adjustment of the support base 70 as the guide arm 71 is adjusted relative to the movable bracket 20. This enables the motor 50 to be adjusted in position, ensuring the connection effect of the motor 50 relative to the first transmission module 60.

[0062] Please refer to the attached document. Figure 3 and 6 The movable bracket 20 is provided with a threaded hole 20a; the guide arm 71 is provided with an elongated hole 71a, which is arranged along the width direction of the guide arm 71 and exposes the threaded hole 20a. The elongated hole 71a is passed through the bolt and screwed into the threaded hole 20a to realize the connection between the guide arm 71 and the movable bracket 20. When the position of the elongated hole 71a relative to the threaded hole 20a is adjusted, the position of the guide arm 71 relative to the movable bracket 20 can be adjusted.

[0063] Please refer to the attached document. Figure 3 The movable support 20 is connected to a handle 21, which is located on the upper side of the movable support 20 and is intended for the user to grasp, so that the user can lift the roller brush device 100 by grasping the handle 21, thereby improving the user's lifting convenience.

[0064] Please refer to the attached document. Figures 1-2 7. In this embodiment of the application, the roller brush device 100 further includes a shock absorber 80, which is disposed between the support member 11 and the movable bracket 20. The shock absorber 80 is provided with a first shock absorber arm 81, which elastically contacts the movable bracket 20 and applies an elastic force to the movable bracket 20 to reduce the noise of the movable bracket 20 during the falling process. By making full use of the elastic support of the first shock absorber arm 81 on the movable bracket 20, the falling speed of the movable bracket 20 is reduced, thereby reducing the noise of the movable bracket 20 during the falling process and avoiding the generation of large noise when the movable bracket 20 moves relative to the robot body 10, thus reducing the activity noise of the roller brush device 100.

[0065] Please refer to the attached document. Figures 1-27. In this embodiment of the application, the movable support 20 is swayably connected to the robot body 10 and swings in the vertical direction; so as to adjust the vertical position of the movable support 20 relative to the robot body 10. When the roller brush 30 contacts an object on the photovoltaic panel, it will lift the movable support 20 upward, so that the roller brush 30 will drive the movable support 20 to move in the vertical direction due to the uneven surface of the photovoltaic panel during the rolling process, thereby facilitating the shock absorber 80 to apply an elastic force to the movable support 20, so as to reduce the noise of the movable support 20 during the falling process.

[0066] Please refer to the attached document. Figures 1-2 7. In this embodiment, the robot body 10 is provided with a first arm 12; the movable bracket 20 is hinged to the robot body 10 so that the movable bracket 20 can move along the axis of the connection between the movable bracket 20 and the robot body 10, and the movable bracket 20 can move closer to or further away from the first arm 12; so that the movable bracket 20 can connect to or disconnect from the first arm 12, thereby facilitating the movable bracket 20 to move in the vertical direction. A shock absorber 80 is connected to the first arm 12 so that the shock absorber 80 is fixed to the first arm 12, thereby facilitating the first arm 12 to limit the position of the shock absorber 80. The first shock absorber arm 81 contacts the movable bracket 20 so that the first shock absorber arm 81 applies an elastic force to the movable bracket 20, thereby reducing the noise of the movable bracket 20 during the falling process. Optionally, the shock absorber 80 is a torsion spring.

[0067] Please refer to the attached document. Figures 1-2 7. The shock absorber 80 is sleeved on the first support arm 12 so that the first shock absorber 81 faces the movable support 20 and the first shock absorber 81 elastically contacts the movable support 20 so that the first shock absorber 81 applies an elastic force to the movable support 20 to reduce the noise of the movable support 20 during the falling process. The elastic support of the first shock absorber 81 on the movable support 20 is fully utilized to reduce the falling speed of the movable support 20, thereby reducing the noise of the movable support 20 during the falling process.

[0068] Please refer to the attached document. Figures 1-2 7. The shock absorber 80 is also provided with a second shock absorber arm 82. The second shock absorber arm 82 is located on the other side of the first shock absorber arm 81. The second shock absorber arm 82 is connected to the first arm 12 so that the first arm 12 can restrict the position of the shock absorber 80 through the second shock absorber arm 82, thus ensuring the position of the shock absorber 80 relative to the first arm 12.

[0069] Please refer to the attached document. Figure 7The first support arm 12 is provided with multiple through holes 12a, which are arranged circumferentially along the axial direction of the first support arm 12. Each through hole 12a can be inserted into the second shock-absorbing support arm 82, so that the second shock-absorbing support arm 82 can adjust the magnitude of the elastic force applied by the first shock-absorbing support arm 81 relative to the movable bracket 20 by inserting different through holes 12a, thereby improving the versatility of the shock absorber 80.

[0070] Please refer to the attached document. Figures 1-2 The robot body 10 is also provided with a second arm 13, which is located below the first arm 12. One end of the movable bracket 20 is hinged to the second arm 13 so that the second arm 13 can further abut against the position of the movable bracket 20, ensuring the connection stability of the movable bracket 20 relative to the robot body 10. The movable bracket 20 can be detached from the second arm 13 so that the movable bracket 20 can move relative to the robot body 10.

[0071] Please refer to the attached document. Figures 1-2 The movable support 20 has a groove 20b at one end, which is adapted to the second support arm 13. The groove 20b has an opening for the second support arm 13 to pass through, so that the second support arm 13 can be accommodated in the groove 20b through the opening. This makes it easy for the movable support 20 to engage with the second support arm 13 through the groove 20b, and at the same time, it allows the movable support 20 to disengage from the second support arm 13 through the opening.

[0072] In a second embodiment of the application, a photovoltaic cleaning robot includes a roller brush device 100, which is part of the photovoltaic cleaning robot used to clean photovoltaic panels.

[0073] At this time, the roller brush device 100 includes a robot body 10, a movable support 20, a roller brush 30, and an outer cover 40; the robot body 10 is provided with a support member 11; the movable support 20 is movably connected to the support member 11 and can float in the up and down direction relative to the support member 11; the roller brush 30 is rotatably connected to the movable support 20 and is used to clean dust or pollutants on the photovoltaic panel; the outer cover 40 is located on the upper side of the roller brush 30, and the outer cover 40 covers part of the roller brush 30 and blocks the sewage splashed backward by the roller brush 30, so as to block the sewage splashed by the roller brush 30 during rotation, avoid sewage contact with the robot body 10 or the movable support 20, and ensure the cleanliness of the roller brush device 100.

[0074] Compared with the prior art, the beneficial effects of this utility model are:

[0075] This utility model provides a roller brush device 100 and a photovoltaic cleaning robot. The robot body 10 is provided with a support member 11. A movable bracket 20 is movably connected to the support member 11 and can float in the up and down direction relative to the support member 11. A roller brush 30 is rotatably connected to the movable bracket 20 and is used to clean dust or pollutants on the photovoltaic panel. An outer cover 40 is located on the upper side of the roller brush 30, covering part of the roller brush 30 and blocking the sewage splashed backward by the roller brush 30, so as to block the sewage splashed by the roller brush 30 during rotation, avoid sewage contact with the robot body 10 or the movable bracket 20, and ensure the cleanliness of the roller brush device 100.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0077] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0078] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A roller brush device, characterized in that, The roller brush device is used in a photovoltaic cleaning robot; the roller brush device includes: The robot's main body is equipped with supporting components; The movable bracket is movably connected to the support member and can float relative to the support member in the vertical direction; A roller brush, rotatably connected to the movable bracket, is used to clean dust or contaminants on the photovoltaic panel; An outer cover is located above the roller brush, covering a portion of the roller brush and blocking wastewater splashed backward by the roller brush.

2. The roller brush device according to claim 1, characterized in that, The outer cover is arranged in an arc shape, and the outer cover is either split or integrated with the movable bracket.

3. The roller brush device according to claim 1, characterized in that, The outer cover is connected to a water spray component, which is arranged in a downward inclined direction and sprays water onto the roller brush or the area in front of the roller brush.

4. The roller brush device according to claim 3, characterized in that, The water spray element is multiple, and the multiple water spray elements are arranged along the length direction of the outer cover and are interconnected.

5. The roller brush device according to any one of claims 1 to 4, characterized in that, The roller brush device further includes a motor and a first transmission module; one end of the first transmission module is connected to the output end of the motor, and the other end of the first transmission module is connected to the roller brush, driving the roller brush to rotate along its own axis; the first transmission module is a synchronous belt transmission module, a chain transmission module, or a connecting belt transmission module.

6. The roller brush device according to claim 5, characterized in that, When the first transmission module is a synchronous belt transmission module, the synchronous belt transmission module includes a driving pulley, a synchronous belt, and a driven pulley; The driving wheel is connected to the output end of the motor, and the driven wheel is connected to the connecting end of the roller brush; the synchronous belt is disposed between the driving wheel and the driven wheel, and pulls the driving wheel and the driven wheel.

7. The roller brush device according to any one of claims 1 to 4, characterized in that, The roller brush device further includes a shock absorber, which is disposed between the support member and the movable bracket. The shock absorber has a first shock absorber arm, which elastically contacts the movable bracket and applies an elastic force to the movable bracket.

8. The roller brush device according to claim 7, characterized in that, The movable support is swayably connected to the robot body and swings in the up-down direction; The roller brush lifts the movable support upwards when it comes into contact with an object on the photovoltaic panel.

9. The roller brush device according to claim 8, characterized in that, The robot body is equipped with a first arm; The movable support is hinged to the robot body and is located near or away from the first arm; The shock absorber is connected to the first support arm, and the first shock absorber arm contacts the movable bracket; the shock absorber is a torsion spring.

10. A photovoltaic cleaning robot, characterized in that, Includes the roller brush device as described in any one of claims 1 to 9.

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