A semi-automatic tracked photovoltaic panel cleaning device

By designing a semi-automatic tracked photovoltaic panel cleaning device, which utilizes roller brushes and track components, the high cost of existing photovoltaic cleaning robots in special scenarios and the low efficiency of manual cleaning are solved, achieving efficient and low-cost photovoltaic panel cleaning.

CN224356070UActive Publication Date: 2026-06-12HUNAN MEDA INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN MEDA INTELLIGENT TECH CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-12

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Abstract

The utility model discloses a kind of semi-automatic tracked photovoltaic panel cleaning device, belong to photovoltaic panel cleaning device field, including roller brush, first walking assembly and second walking assembly, first walking assembly includes first walking support, driving motor, first driving wheel, first driven wheel and first track, first track is sleeved on first driving wheel and first driven wheel, driving motor is used to drive roller brush and first driving wheel rotation, second walking assembly includes second walking support, second driving wheel, second driven wheel and second track, second track is sleeved on second driving wheel and second driven wheel, driving motor is rotated by roller brush driving second driving wheel, second driving wheel is used to drive second track walking on photovoltaic panel. The embodiment of the application, can be good to reduce the skidding situation of first walking assembly and second walking assembly, can reduce the labor intensity of cleaning personnel, improves cleaning efficiency, reduces manual cleaning cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic panel cleaning devices, and in particular to a semi-automatic tracked photovoltaic panel cleaning device. Background Technology

[0002] With the rapid development of the photovoltaic industry, the number of photovoltaic power plants is also increasing. To ensure the proper operation of photovoltaic power plants, post-construction maintenance is essential. A crucial aspect of this is maintaining the cleanliness of the photovoltaic panels, preventing them from being covered by dust, sand, and other contaminants that could affect power generation efficiency. Therefore, regular cleaning of the photovoltaic panels is a vital step in ensuring the smooth operation of a photovoltaic power plant.

[0003] Currently, photovoltaic (PV) cleaning robots are rapidly developing. Commonly used PV cleaning robots in large-scale power plants can be broadly categorized into two types: dry-mounted PV cleaning robots and robots mounted on cleaning vehicles with robotic arms that use fixed roller brushes or are transported by robotic arms to clean PV panels. However, these two solutions may not be suitable for certain special scenarios. For example, dry-mounted cleaning robots may not be suitable for large PV power plants where PV panels are scattered in certain areas, the number of connected PV panels is small, or the terrain is too undulating to lay cleaning robot tracks. In these situations, using cleaning robots would significantly increase the cost of PV cleaning. On the other hand, the vehicle-type cleaning method with robotic arms is difficult to traverse in areas with large terrain undulations or severe desertification, making cleaning impossible. Therefore, for the aforementioned situations where cleaning is impossible or where using existing cleaning methods would significantly increase cleaning costs, manual cleaning is usually used as a supplementary method. Traditional manual cleaning methods typically involve using water guns or brushes. However, using water guns for cleaning can be difficult in some environments, and manually cleaning the photovoltaic panels one by one with brushes is extremely inefficient. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a semi-automatic tracked photovoltaic panel cleaning device.

[0005] A semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention includes:

[0006] Roller brushes are used to clean photovoltaic panels while rotating.

[0007] The first walking assembly includes a first walking bracket, a drive motor, a first drive wheel, a first driven wheel, and a first track. The drive motor, the first drive wheel, and the first driven wheel are mounted on the first walking bracket. The drive motor is connected to one end of the first drive wheel and the roller brush. The first track is sleeved on the first drive wheel and the first driven wheel. The drive motor is used to drive the roller brush and the first drive wheel to rotate. The first drive wheel is used to drive the first track to walk on the photovoltaic panel.

[0008] The second walking assembly includes a second walking bracket, a second drive wheel, a second driven wheel, and a second track. The second drive wheel and the second driven wheel are mounted on the second walking bracket. The second drive wheel is connected to the other end of the roller brush. The second track is sleeved on the second drive wheel and the second driven wheel. The drive motor drives the second drive wheel to rotate through the roller brush. The second drive wheel is used to drive the second track to walk on the photovoltaic panel.

[0009] A semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention has at least the following beneficial effects:

[0010] A drive motor rotates a roller brush to clean the photovoltaic panels. The drive motor also drives the first and second drive wheels, causing the first and second tracks to move across the photovoltaic panels. Using a tracked design effectively reduces slippage between the first and second walking components. Human intervention is not required throughout the entire operation; it is only necessary when changing rows or crossing sections. This reduces the workload of cleaning personnel, improves cleaning efficiency, and lowers labor costs.

[0011] According to some embodiments of the present invention, the second walking assembly is used to be mounted on the higher end of the photovoltaic panel. The second walking assembly also includes a walking wheel, which is rotatably connected to the second walking bracket. The walking wheel abuts against the upper surface of the photovoltaic panel. The axial direction of the walking wheel is parallel to the axial direction of the roller brush, and the axial direction of the roller brush is perpendicular to the axial direction of the second drive wheel. The second track abuts against the side wall of the photovoltaic panel, and the first track abuts against the upper surface of the photovoltaic panel.

[0012] According to some embodiments of the present invention, the second walking support includes a first support plate and a second support plate. The surfaces of the first support plate and the second support plate are arranged perpendicularly. The surface of the first support plate is arranged perpendicular to the axial direction of the roller brush. The walking wheel is mounted on the first support plate, and the second driving wheel and the second driven wheel are mounted on the second support plate.

[0013] According to some embodiments of the present invention, a first spur gear set is connected between the first drive wheel and the drive motor, and a bevel gear set and a second spur gear set are connected between the roller brush and the second drive wheel.

[0014] According to some embodiments of the present invention, a first dust cover is provided on the outer side of the first spur gear set, and the first dust cover is installed on the first traveling bracket. A second dust cover is provided on the outer side of the second spur gear set and the bevel gear set, and the second dust cover is installed on the second traveling bracket.

[0015] According to some embodiments of the present invention, the first walking assembly further includes a first tensioning wheel, which is mounted on the first walking bracket and abuts against the outer side of the first track.

[0016] According to some embodiments of the present invention, a sliding groove is provided on the first traveling bracket, and an adjusting threaded hole for an adjusting bolt to pass through and communicating with the sliding groove is provided on the traveling bracket. The axial direction of the adjusting threaded hole is consistent with the length direction of the sliding groove. A slider is slidably connected in the sliding groove, and a connecting rod is connected to the slider. The first tensioning wheel is rotatably connected to the connecting rod. When the slider moves from one end of the sliding groove to the other end, the tensioning force of the first tensioning wheel on the first track gradually increases.

[0017] According to some embodiments of the present invention, the first driving wheel and the driven wheel are spaced apart along the length direction of the first traveling bracket, the first tensioning wheel is located between the first driving wheel and the first driven wheel, and the length direction of the slide groove is the width direction of the first traveling bracket.

[0018] According to some embodiments of the present invention, the second walking assembly further includes a second tensioning wheel, which is mounted on the second walking bracket and abuts against the outer side of the second track.

[0019] According to some embodiments of the present invention, a battery bracket is connected to the first walking bracket, and a stop is provided on the battery bracket.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of the semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the first walking component of the semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the structure of the first walking component of the semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the structure of the second walking component of the semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the structure of the second walking component of the semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention. Figure 2 ;

[0027] Figure 6 A schematic diagram of the first walking component of the semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention, showing the removal of the first dust cover;

[0028] Figure 7 A schematic diagram of the second walking component of the semi-automatic tracked photovoltaic panel cleaning device according to an embodiment of the present invention, showing the removal of the second dust cover;

[0029] Figure 8 This is a schematic diagram of the semi-automatic tracked photovoltaic panel cleaning device applied to a photovoltaic panel according to an embodiment of the present invention.

[0030] Icon labels:

[0031] 100. Roller brush;

[0032] 200, First traveling assembly; 210, First traveling bracket; 211, Slide groove; 212, Adjusting threaded hole; 220, Drive motor; 230, First drive wheel; 231, First spur gear set; 232, First dust cover; 240, First driven wheel; 250, First track; 260, First tension wheel; 261, Slider; 262, Connecting rod; 270, Battery bracket; 271, Edge retainer;

[0033] 300. Second traveling assembly; 310. Second traveling bracket; 311. First bracket plate; 312. Second bracket plate; 320. Second drive wheel; 321. Bevel gear set; 322. Second spur gear set; 323. Second dust cover; 330. Second driven wheel; 340. Second track; 350. Traveling wheel; 360. Second tension wheel;

[0034] 400. Photovoltaic panels. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Please see Figure 1 , Figure 2 and Figure 3This utility model discloses a semi-automatic tracked photovoltaic panel cleaning device, comprising a roller brush 100, a first walking assembly 200, and a second walking assembly 300. The roller brush 100 abuts against the photovoltaic panel 400 and is used to clean the photovoltaic panel 400 when rotating. The first walking assembly 200 includes a first walking bracket 210, a drive motor 220, a first drive wheel 230, a first driven wheel 240, and a first track 250. The drive motor 220, the first drive wheel 230, and the first driven wheel 240 are mounted on the first walking bracket 210. The drive motor 220 is connected to one end of the first drive wheel 230 and the roller brush 100. The first track 250 is sleeved on the first drive wheel 230 and the first driven wheel 240. The drive motor 220 drives the roller brush 100 and the first drive wheel 230 to rotate, and the first drive wheel 230 drives the first track 250 to move on the photovoltaic panel 400. (See reference...) Figure 4 and Figure 5 The second walking assembly 300 includes a second walking bracket 310, a second drive wheel 320, a second driven wheel 330, and a second track 340. The second drive wheel 320 and the second driven wheel 330 are mounted on the second walking bracket 310. The second drive wheel 320 is connected to the other end of the roller brush 100. The second track 340 is sleeved on the second drive wheel 320 and the second driven wheel 330. The drive motor 220 drives the second drive wheel 320 to rotate through the roller brush 100. The second drive wheel 320 is used to drive the second track 340 to walk on the photovoltaic panel 400.

[0039] The drive motor 220 drives the roller brush 100 to rotate to clean the photovoltaic panel 400. The drive motor 220 also drives the first drive wheel 230 and the second drive wheel 320 to rotate, causing the first track 250 and the second track 340 to move on the photovoltaic panel 400. Using a track system effectively reduces slippage between the first and second walking components 200 and 300. It eliminates the need for full-time human intervention during operation, requiring only manual intervention when changing lanes or crossing sections, thus reducing the workload of cleaning personnel, improving cleaning efficiency, and lowering labor costs.

[0040] In some embodiments, see Figure 1 , Figure 4 and Figure 8The photovoltaic panel 400 is installed at an angle, and the second traveling assembly 300 is mounted at the higher end of the photovoltaic panel 400. The second traveling assembly 300 also includes a traveling wheel 350, which is rotatably connected to the second traveling bracket 310 and abuts against the upper surface of the photovoltaic panel 400. The axis of the traveling wheel 350 is parallel to the axis of the roller brush 100, and the axis of the roller brush 100 is perpendicular to the axis of the second drive wheel 320. The second track 340 abuts against the side wall of the photovoltaic panel 400, and the first track 250 abuts against the upper surface of the photovoltaic panel 400.

[0041] The photovoltaic panel 400 is tilted, and the semi-automatic tracked photovoltaic panel cleaning device abuts against the photovoltaic panel 400 under the action of gravity. The traveling wheel 350 abuts against the upper surface of the upper end of the photovoltaic panel 400, and the first track 250 abuts against the upper surface of the lower end of the photovoltaic panel 400. The traveling wheel 350 and the first track 250 cooperate to support the roller brush 100 so that the axis of the roller brush 100 is parallel to the surface of the photovoltaic panel 400, ensuring that the roller brush 100 can clean the photovoltaic panel 400 smoothly. The second track 340 abuts against the upper side wall of the photovoltaic panel 400, so that the semi-automatic tracked photovoltaic panel cleaning device will not slip off the photovoltaic panel 400.

[0042] In some embodiments, see Figure 1 , Figure 4 and Figure 5 The second traveling bracket 310 includes a first bracket plate 311 and a second bracket plate 312. The surfaces of the first bracket plate 311 and the second bracket plate 312 are perpendicularly arranged. The surface of the first bracket plate 311 is perpendicular to the axial direction of the roller brush 100. A traveling wheel 350 is mounted on the first bracket plate 311, and a second driving wheel 320 and a second driven wheel 330 are mounted on the second bracket plate 312. The perpendicular arrangement of the first bracket plate 311 and the second bracket plate 312 facilitates the installation of the traveling wheel 350 on the first bracket plate 311 and the installation of the second driving wheel 320 and the second driven wheel 330 on the second bracket plate 312. This ensures that the axial direction of the traveling wheel 350 is perpendicular to the axial direction of the second driving wheel 320, so that when the traveling wheel 350 abuts against the upper surface of the photovoltaic panel 400, the second track 340 can abut against the side wall of the photovoltaic panel 400.

[0043] In some embodiments, see Figure 6 and Figure 7A first spur gear set 231 connects the first drive wheel 230 to the drive motor 220, and a bevel gear set 321 and a second spur gear set 322 connect the roller brush 100 to the second drive wheel 320. The output shaft of the drive motor 220 drives the roller brush 100 to rotate via a connecting flange, and the output shaft of the drive motor 220 drives the first drive wheel 230 to rotate via the first spur gear set 231, allowing the drive motor 220 to drive two wheels simultaneously, thus improving the utilization efficiency of the drive motor 220. The other end of the roller brush 100 is rotatably connected to the first support plate 311, and the second drive wheel 320 is rotatably connected to the second support plate 312. The first support plate 311 and the second support plate 312 are set perpendicularly, and the roller brush 100 and the second drive wheel 320 are connected by a transmission through the bevel gear set 321 and the second spur gear set 322, ensuring that the driving force of the roller brush 100 can be smoothly transmitted to the second drive wheel 320.

[0044] In some embodiments, see Figure 2 and Figure 4 A first dust cover 232 is provided on the outer side of the first spur gear set 231, and the first dust cover 232 is mounted on the first traveling bracket 210. A second dust cover 323 is provided on the outer side of the second spur gear set 322 and the bevel gear set 321, and the second dust cover 323 is mounted on the second traveling bracket 310. The first dust cover 232 is used to protect the first spur gear set 231 from external contaminants, extend its service life, and ensure the stable operation of the transmission system. The second dust cover 323 is used to protect the bevel gear set 321 and the second spur gear set 322 from external contaminants, extend their service life, and ensure the stable operation of the transmission system.

[0045] In some embodiments, see Figure 3 and Figure 6 The first traveling assembly 200 also includes a first tensioning pulley 260, which is mounted on the first traveling bracket 210 and abuts against the outer side of the first track 250. The first tensioning pulley 260 maintains appropriate tension on the first track 250, ensuring good meshing between the first track 250 and the first drive wheel 230 and the first driven wheel 240, thereby ensuring stable operation of the machinery, extending component life, and improving operational efficiency.

[0046] In some embodiments, see Figure 2 and Figure 4The first traveling bracket 210 is provided with a sliding groove 211 and an adjusting threaded hole 212. The adjusting threaded hole 212 is used for the adjustment bolt to pass through and is connected to the sliding groove 211. The axial direction of the adjusting threaded hole 212 is consistent with the length direction of the sliding groove 211. A slider 261 is slidably connected in the sliding groove 211, and a connecting rod 262 is connected to the slider 261. The first tensioning wheel 260 is rotatably connected to the connecting rod 262. When the slider 261 moves from one end of the sliding groove 211 to the other end, the tension of the first tensioning wheel 260 on the first track 250 gradually increases. The adjusting bolt is screwed into the adjusting threaded hole 212, and the adjusting bolt is rotated, causing the length of the adjusting bolt extending into the sliding groove 211 to change, thereby adjusting the position of the slider 261 and achieving the purpose of adjusting the tension.

[0047] In some embodiments, see Figure 2 and Figure 4 A first drive wheel 230 and a driven wheel are spaced apart along the length of the first traveling bracket 210. A first tension wheel 260 is located between the first drive wheel 230 and the first driven wheel 240. The length of the groove 211 is the width of the first traveling bracket 210. In the initial position, the first tension wheel 260 is above the first track 250, and the slider 261 is located at the upper end of the groove 211. Rotating the adjusting bolt increases the length of the adjusting bolt extending into the groove 211, causing the slider 261 to move downward, thus pressing the first track 250 down and further tightening it. Rotating the adjusting bolt decreases the length of the adjusting bolt extending into the groove 211, loosening the first track 250, causing the first tension wheel 260 to move upward, and causing the slider 261 to move upward within the groove 211.

[0048] In some embodiments, see Figure 4 The second traveling assembly 300 also includes a second tensioning pulley 360, which is mounted on the second traveling bracket 310 and abuts against the outer side of the second track 340. The second tensioning pulley 360 maintains appropriate tension on the second track 340, ensuring good meshing between the second track 340 and the second drive wheel 320 and the second driven wheel 330, thereby ensuring stable operation of the machinery, extending component life, and improving work efficiency. The tension adjustment method of the second tensioning pulley 360 is the same as that of the first tensioning pulley 260.

[0049] In some embodiments, see Figure 1 and Figure 2 A battery bracket 270 is connected to the first walking bracket 210, and a retaining edge 271 is provided on the battery bracket 270. A battery can be placed on the battery bracket 270, and the battery supplies power to the drive motor 220. The retaining edge 271 can make the battery securely installed on the battery bracket 270.

[0050] The working principle of the semi-automatic tracked photovoltaic panel cleaning device in this application embodiment is as follows: the drive motor 220 drives the roller brush 100 to rotate and clean the photovoltaic panel 400. The drive motor 220 drives the first drive wheel 230 to rotate through the first spur gear set 231. The first drive wheel 230 drives the first track 250 to move. The other end of the roller drives the second drive wheel 320 to rotate through the bevel gear set 321 and the second spur gear set 322. The second drive wheel 320 drives the second track 340 to move. While cleaning the photovoltaic panel 400, it can also move on its own.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A semi-automatic tracked photovoltaic panel cleaning device, characterized in that, include: Roller brushes are used to clean photovoltaic panels while rotating. The first walking assembly includes a first walking bracket, a drive motor, a first drive wheel, a first driven wheel, and a first track. The drive motor, the first drive wheel, and the first driven wheel are mounted on the first walking bracket. The drive motor is connected to one end of the first drive wheel and the roller brush. The first track is sleeved on the first drive wheel and the first driven wheel. The drive motor is used to drive the roller brush and the first drive wheel to rotate. The first drive wheel is used to drive the first track to walk on the photovoltaic panel. The second walking assembly includes a second walking bracket, a second drive wheel, a second driven wheel, and a second track. The second drive wheel and the second driven wheel are mounted on the second walking bracket. The second drive wheel is connected to the other end of the roller brush. The second track is sleeved on the second drive wheel and the second driven wheel. The drive motor drives the second drive wheel to rotate through the roller brush. The second drive wheel is used to drive the second track to walk on the photovoltaic panel.

2. The semi-automatic tracked photovoltaic panel cleaning device according to claim 1, characterized in that, The second traveling assembly is used to mount on the higher end of the photovoltaic panel. The second traveling assembly also includes a traveling wheel, which is rotatably connected to the second traveling bracket. The traveling wheel abuts against the upper surface of the photovoltaic panel. The axis of the traveling wheel is parallel to the axis of the roller brush, and the axis of the roller brush is perpendicular to the axis of the second driving wheel. The second track abuts against the side wall of the photovoltaic panel, and the first track abuts against the upper surface of the photovoltaic panel.

3. The semi-automatic tracked photovoltaic panel cleaning device according to claim 2, characterized in that, The second traveling support includes a first support plate and a second support plate. The surfaces of the first support plate and the second support plate are perpendicular to each other. The surface of the first support plate is perpendicular to the axial direction of the roller brush. The traveling wheel is mounted on the first support plate, and the second driving wheel and the second driven wheel are mounted on the second support plate.

4. The semi-automatic tracked photovoltaic panel cleaning device according to claim 1, characterized in that, A first spur gear set is connected between the first drive wheel and the drive motor, and a bevel gear set and a second spur gear set are connected between the roller brush and the second drive wheel.

5. A semi-automatic tracked photovoltaic panel cleaning device according to claim 4, characterized in that, A first dust cover is provided on the outside of the first spur gear set, and the first dust cover is installed on the first traveling bracket. A second dust cover is provided on the outside of the second spur gear set and the bevel gear set, and the second dust cover is installed on the second traveling bracket.

6. A semi-automatic tracked photovoltaic panel cleaning device according to claim 1, characterized in that, The first traveling assembly further includes a first tensioning wheel, which is mounted on the first traveling bracket and abuts against the outside of the first track.

7. A semi-automatic tracked photovoltaic panel cleaning device according to claim 6, characterized in that, The first traveling bracket is provided with a sliding groove, and the traveling bracket is provided with an adjusting threaded hole for an adjusting bolt to pass through and communicating with the sliding groove. The axial direction of the adjusting threaded hole is consistent with the length direction of the sliding groove. A slider is slidably connected in the sliding groove, and a connecting rod is connected to the slider. The first tensioning wheel is rotatably connected to the connecting rod. When the slider moves from one end of the sliding groove to the other end, the tensioning force of the first tensioning wheel on the first track gradually increases.

8. A semi-automatic tracked photovoltaic panel cleaning device according to claim 7, characterized in that, The first drive wheel and the driven wheel are spaced apart along the length of the first traveling bracket, the first tension wheel is located between the first drive wheel and the first driven wheel, and the length of the groove is the width of the first traveling bracket.

9. A semi-automatic tracked photovoltaic panel cleaning device according to claim 1, characterized in that, The second traveling assembly also includes a second tension wheel, which is mounted on the second traveling bracket and abuts against the outside of the second track.

10. A semi-automatic tracked photovoltaic panel cleaning device according to claim 1, characterized in that, A battery bracket is connected to the first walking bracket, and the battery bracket is provided with a guard.