Adjustable photovoltaic panel cleaning device

Abstract

The utility model relates to an adjustable photovoltaic panel cleaning device, belong to cleaning equipment technical field, including frame body, crawler assembly, control box, support arm plate, adjusting arm plate, cleaning support, cleaning brush roller, cleaning drive mechanism, walking drive component, hinge pin, limiting bolt and limiting fixed pin, be equipped with the rotation hole that coordinates with hinge pin on adjusting arm plate, be equipped with the limiting strip shape arc hole and limiting strip shape open slot on adjusting arm plate, limiting fixed pin and limiting bolt respectively extend into limiting strip shape open slot and limiting strip shape arc hole inside. The utility model limiting bolt and limiting strip shape arc hole, limiting fixed pin and limiting strip shape open slot's corresponding activity cooperation, can limit the rotation range of adjusting arm plate, avoid excessive rotation, can rotate and lift after cleaning brush roller is contacted, prevent jam, and this structure when cleaning, cleaning brush roller will not along with cleaning and separate photovoltaic panel, guarantee cleaning effect.

Description

Technical Field

[0001] This utility model relates to an adjustable photovoltaic panel cleaning device, belonging to the field of cleaning equipment technology. Background Technology

[0002] With the rapid development of the photovoltaic industry, photovoltaic panels are widely used in power generation systems. During long-term use, dust, sand, and other debris easily accumulate on the surface of photovoltaic panels. This debris can block sunlight, reduce the light absorption efficiency of the photovoltaic panels, and consequently lead to a decrease in power generation.

[0003] Currently, there are two main methods for cleaning photovoltaic panels: manual cleaning and mechanical cleaning. Manual cleaning requires workers to wipe the photovoltaic panels with hand tools, which is not only labor-intensive but also inefficient, making it difficult to meet the cleaning needs of large-scale photovoltaic power plants. While existing mechanical cleaning devices can replace some manual operations, they still have the following drawbacks: the cleaning vehicle frame is connected to the cleaning frame via support arms and connecting arms, but these are rigid connections. When the cleaning device moves from one photovoltaic panel to another, if there is a height difference between the two panels, it can easily get stuck. Furthermore, the cleaning brush can easily detach from the photovoltaic panel during cleaning, affecting the cleaning effect. Utility Model Content

[0004] This invention provides an adjustable photovoltaic panel cleaning device to solve the problems mentioned in the background art.

[0005] This utility model relates to an adjustable photovoltaic panel cleaning device, including a frame, a track assembly, and a control box. Support arm plates are fixed at both ends of the frame, and adjustable arm plates are connected to the support arm plates. A cleaning bracket is fixed at the other end of the adjustable arm plate. A cleaning brush roller is rotatably mounted on the cleaning bracket, and the cleaning brush roller is connected to a cleaning drive mechanism. The track assembly is connected to a walking drive assembly. A pivot pin is fixed on the support arm plate. A limiting pin and a limiting fixing pin are provided on the outer side of the pivot pin. The limiting pin is located between the pivot pin and the limiting fixing pin. The adjustable arm plate has a pivot hole that cooperates with the pivot pin. The adjustable arm plate outside the pivot hole has a limiting strip-shaped arc hole and an arc-shaped limiting strip opening groove coaxial with the pivot hole. The opening of the limiting strip opening groove is located on the bottom wall of the adjustable arm plate. The limiting fixing pin and the limiting pin extend into the limiting strip opening groove and the limiting strip arc hole, respectively.

[0006] As a preferred embodiment, the inner side of the rotating hole is connected to a downwardly sloping inlet / outlet. The downwardly sloping inlet / outlet reduces the contact friction between the pivot pin and the adjusting arm plate during rotation, reduces component wear, and makes the installation and removal of the adjusting arm plate quicker.

[0007] As a preferred embodiment, a fixing block is fixed to the support arm plate, and the pivot pin and the limiting pin are fixed to the fixing block, while the limiting pin is movably mounted on the fixing block. The fixing block provides a unified mounting carrier for the pivot pin, the limiting pin, and the limiting pin, improving the stability of the connection between each component and the support arm plate.

[0008] As a preferred embodiment, the cleaning drive mechanism includes a cleaning motor fixed on a U-shaped cleaning bracket. The cleaning motor is fixedly connected to a cleaning connecting shaft. The outer end of the cleaning connecting shaft is rotatably mounted on the cleaning bracket and fixedly connected to a driving synchronous pulley. The driving synchronous pulley is connected to a driven synchronous pulley via a synchronous belt. The driven synchronous pulley is fixed to one end of the cleaning brush roller. This synchronous pulley transmission structure offers high power transmission efficiency and smooth operation, ensuring stable power transmission from the cleaning motor to the cleaning brush roller, resulting in uniform rotation of the cleaning brush roller and improved cleaning evenness.

[0009] As a preferred embodiment, the outer sides of the driving synchronous pulley, synchronous belt, and driven synchronous pulley are equipped with protective covers fixed to the sweeping bracket. These protective covers protect the transmission components, preventing debris from affecting transmission efficiency or causing wear, and also prevent the synchronous belt from becoming entangled with external objects during high-speed operation, thus improving the safety and service life of the sweeping drive mechanism.

[0010] As a preferred embodiment, a protective plate is provided above the cleaning brush roller, and a support plate is fixed to the bottom of the protective plate. The support plate is fixed to the cleaning support, and the outer end of the support plate has a downward-facing supporting bent edge. The lower end of the protective plate has a protective bent edge that cooperates with the supporting bent edge, and the top of the protective plate has an upward-facing bent flange. The protective plate can prevent fallen leaves, dust, and other debris from falling directly onto the cleaning brush roller, avoiding debris from getting tangled in the brush and affecting the cleaning effect. The cooperation between the supporting bent edge of the support plate and the protective bent edge of the protective plate enhances the installation stability of the protective plate and allows for installation positioning. The bent flange facilitates gripping.

[0011] As a preferred embodiment, the lower end of the protective plate is equipped with an installation platform. Multiple installation holes are provided on the installation platform along the axial direction of the cleaning brush roller. Cleaning nozzles are fixed to these holes, and a guide pipe is fixed to the top of each nozzle. The guide pipe is connected via a delivery hose to a diverter sleeve fixed to the control box. A rotary joint is connected to the top inlet of the diverter sleeve, and a water inlet pipe is fixed to the inlet of the rotary joint. The cleaning nozzles, in conjunction with the cleaning brush roller, achieve a collaborative cleaning mode of "mechanical sweeping + high-pressure water spraying," effectively removing stubborn stains from the photovoltaic panel surface and improving cleaning thoroughness. The multiple cleaning nozzles arranged along the axial direction of the cleaning brush roller ensure that the water spray coverage matches the sweeping area, avoiding cleaning dead zones. The rotary joint prevents the water inlet pipe from tangling during device movement, and the diverter sleeve ensures that the water flow is evenly distributed to the cleaning nozzles at both ends, guaranteeing stable water spray pressure.

[0012] As a preferred embodiment, the lower end of the protective plate is equipped with a downward-facing protective flange to protect the cleaning nozzle. The protective flange surrounds the outside of the cleaning nozzle, preventing debris from directly impacting the nozzle during cleaning, thus avoiding damage or blockage. It also reduces the impact of water splashing on surrounding components, protects the performance of the cleaning nozzle, extends its service life, and ensures continuous and reliable cleaning function.

[0013] As a preferred embodiment, the track assembly includes two tracks disposed on both sides of the frame. Each track has a track drive wheel at both ends, and the track drive wheel is connected to a track shaft. One end of the track shaft is fixed to the track drive wheel and is fixedly connected to a travel motor, which is fixed to the frame. The other end of the track shaft is rotatably connected to the track drive wheel, and both ends extend into strip-shaped adjustment holes on the frame. A rotating seat fixed to the frame is provided on the outside of the adjustment hole. An adjustment bolt is rotatably installed on the rotating seat. The adjustment bolt is threadedly connected to the track shaft at the other end. The track shaft at the other end is provided with a limiting platform that mates with the adjustment hole. By rotating the adjusting bolt, the track shaft at the other end can be moved within the adjusting hole, changing the spacing of the track drive wheels, thereby achieving convenient adjustment of track tension and avoiding slippage caused by track loosening after long-term use. The limiting platform, in conjunction with the adjusting hole, prevents the track shaft from rotating during the adjustment process, ensuring that the rotation of the adjusting bolt can be stably converted into axial movement of the track shaft, improving adjustment accuracy and ease of operation, and ensuring stable movement of the device.

[0014] As a preferred embodiment, a sliding sleeve is fixed to the fixed block and fitted onto the limiting pin. A sliding ring, fixed to the limiting pin, is slidably disposed within the sliding sleeve. A spring, fitted onto the limiting pin, is located on the side of the sliding ring away from the fixed block. A pull cap is fixed to the end of the limiting pin that extends out of the sliding sleeve. The spring applies continuous elastic pressure to the limiting pin, allowing it to be stably inserted into the limiting arc-shaped hole. Furthermore, pulling the pull cap overcomes the spring's elasticity, causing the limiting pin to disengage from the limiting arc-shaped hole, facilitating the installation and removal of the adjusting arm plate.

[0015] This utility model has the following beneficial effects: The rotating pin and rotating hole provide a base for the adjustment arm plate to rotate. The corresponding movable cooperation between the limiting pin and the limiting arc hole, and between the limiting fixing pin and the limiting slot not only limits the rotation range of the adjustment arm plate to avoid excessive rotation, but also allows the cleaning brush roller to rotate and lift after being touched, preventing jamming. Furthermore, during cleaning, this structure will naturally hang down and stick to the photovoltaic panel under the weight of the cleaning brush roller and the front structure, and will not detach from the photovoltaic panel during cleaning, ensuring the cleaning effect. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. disclosed in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 3 for Figure 1 Partial structural diagram; Figure 4 This is a schematic diagram of part of the top structure of this utility model; Figure 5 for Figure 2 Partial structural diagram; Figure 6 for Figure 4 Enlarged structural diagram at point A; In the diagram: 1. Frame; 2. Control box; 3. Track shaft; 4. Support arm plate; 5. Adjusting arm plate; 6. Turning pin; 7. Limit pin; 8. Limit fixing pin; 9. Sweeping bracket; 10. Sweeping motor; 11. Sweeping brush roller; 12. Bracket plate; 13. Protective plate; 14. Guide pipe; 15. Cleaning nozzle; 16. Adjusting bolt; 17. Conveying hose; 18. Water inlet pipe; 19. Rotary joint; 20. Diverter sleeve; 21. Protective flange; 22. Inlet / outlet opening; 23. Travel motor; 24. Fixing block; 25. Sweeping connecting shaft; 26. Sliding sleeve; 27. Spring; 28. Pull cap. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1, as Figures 1 to 6 As shown, this utility model is an adjustable photovoltaic panel cleaning device, including a frame 1, a track assembly, and a control box 2. Support arm plates 4 are fixed to both ends of the frame 1, and adjustable arm plates 5 are connected to the support arm plates 4. A cleaning bracket 9 is fixed to the other end of the adjustable arm plate 5. A cleaning brush roller 11 is rotatably mounted on the cleaning bracket 9, and the cleaning brush roller 11 is connected to a cleaning drive mechanism. The track assembly is connected to a walking drive assembly, and a pivot pin 6 is fixed to the support arm plate 4. The outer side of the pivot pin 6 is provided with a limiting pin 7 and a limiting fixing pin 8. The limiting pin 7 is located between the pivot pin 6 and the limiting fixing pin 8. The adjusting arm plate 5 is provided with a pivot hole that cooperates with the pivot pin 6. The adjusting arm plate 5 outside the pivot hole is provided with a limiting strip-shaped arc hole and an arc-shaped limiting strip opening groove that are coaxial with the pivot hole. The opening of the limiting strip opening groove is located on the bottom wall of the adjusting arm plate 5. The limiting fixing pin 8 and the limiting pin 7 extend into the limiting strip opening groove and the limiting strip-shaped arc hole, respectively.

[0021] In use, the device is placed at one end of the photovoltaic panel. The cleaning drive mechanism and the walking drive component are started through the control box 2. The walking drive component drives the device to walk along the surface of the photovoltaic panel. The cleaning drive mechanism drives the cleaning brush roller 11 to rotate and clean the surface of the photovoltaic panel. During cleaning, the cleaning brush roller 11, the cleaning bracket 9 and the cleaning drive mechanism themselves will cause the adjusting arm plate 5 to naturally rotate downward around the pivot pin 6 and stick to the photovoltaic panel. When the cleaning brush roller 11 is hit, it will rotate slightly upward around the adjusting arm plate 5 and the pivot pin 6 to reduce the risk of jamming.

[0022] Example 2, based on Example 1, has a downwardly inclined inlet / outlet opening 22 connected to the inner side of the rotating hole.

[0023] A fixing block 24 is fixed on the support arm plate 4. The pivot pin 6 and the limiting fixing pin 8 are fixed on the fixing block 24, and the limiting pin 7 is movably installed on the fixing block 24.

[0024] The cleaning drive mechanism includes a cleaning motor 10 fixed on a U-shaped cleaning bracket 9. The cleaning motor 10 is fixedly connected to a cleaning connecting shaft 25. The outer end of the cleaning connecting shaft 25 is rotatably mounted on the cleaning bracket 9 and fixedly connected to a drive synchronous pulley. The drive synchronous pulley is connected to a driven synchronous pulley via a synchronous belt. The driven synchronous pulley is fixed to one end of the cleaning brush roller 11. The drive synchronous pulley, driven synchronous pulley, and synchronous belt can also be replaced with gear transmission or belt / pulley transmission.

[0025] The outer sides of the driving synchronous pulley, the synchronous belt, and the driven synchronous pulley are provided with protective covers fixed to the cleaning bracket 9.

[0026] A protective plate 13 is provided above the cleaning brush roller 11. A support plate 12 is fixed to the bottom of the protective plate 13. The support plate 12 is fixed to the cleaning bracket 9. The outer end of the support plate 12 has a downward supporting bent edge. The lower end of the protective plate 13 has a protective bent edge that cooperates with the supporting bent edge. The top of the protective plate 13 has an upward bent flange. The protective plate 13 is fixed to the support plate 12 with screws. When installing the protective plate 13, the bent flange can be pinched and the supporting bent edge can be placed against the protective bent edge for positioning. Then, it can be locked and fixed with screws.

[0027] The lower end of the protective plate 13 is provided with an installation platform. Multiple installation holes are provided on the installation platform along the axial direction of the cleaning brush roller 11. A cleaning nozzle 15 is fixed to each installation hole. A guide pipe 14 is fixed to the top of the cleaning nozzle 15. The guide pipe 14 is connected to a diversion sleeve 20 fixed to the control box 2 via a delivery hose 17. A rotary joint 19 is connected to the top inlet of the diversion sleeve 20, and a water inlet pipe 18 is fixed to the inlet of the rotary joint 19. The water inlet pipe 18 is connected to a water supply hose via a quick-connect coupling, and the water supply hose is connected to a high-pressure water pump. During cleaning, if stubborn stains exist on the photovoltaic panel surface, the high-pressure water pump connected to the water source is activated. Clean water flows through the water supply hose, through the water inlet pipe 18, into the rotary joint 19, and then into the diversion sleeve 20. The diversion sleeve 20 distributes the clean water to the delivery hoses 17 on both sides. The delivery hoses 17 deliver the clean water to the guide pipe 14, and finally, the cleaning nozzle 15 sprays it onto the photovoltaic panel surface, achieving coordinated cleaning in conjunction with the cleaning brush roller 11.

[0028] The lower end of the protective plate 13 is provided with a protective flange 21 for the downward-facing protective cleaning nozzle 15.

[0029] The track assembly includes two tracks positioned on both sides of the frame 1. Each track has a track drive wheel at both ends, connected to a track shaft 3. One end of the track shaft 3 is fixed to the track drive wheel and to a travel motor 23, which is fixed to the frame 1. The other end of the track shaft 3 is rotatably connected to the track drive wheel, with both ends extending into strip-shaped adjustment holes on the frame 1. A rotating seat fixed to the frame 1 is located outside the adjustment hole, and an adjustment bolt 16 is rotatably mounted on the rotating seat. The adjustment bolt 16 is threaded onto the other end of the track shaft 3, which has a limiting platform that mates with the adjustment hole. The control box 2 contains a controller and a battery connecting the travel motor 23 and the sweeping motor 10. The controller is equipped with a wireless transceiver module for connecting a remote control; this is prior art and will not be described in detail here. The travel motors 23 are located at both ends of the two tracks, and the adjustment bolts 16 are arranged radially along the track shaft 3 and parallel to the limiting platform.

[0030] A sliding sleeve 26 is fixed on the fixed block 24 and fitted onto the limiting pin 7. A sliding ring fixed on the limiting pin 7 is slidably disposed inside the sliding sleeve 26. A spring 27 fitted onto the limiting pin 7 is disposed on the side of the sliding ring away from the fixed block 24. A pull cap 28 is fixed to the end of the limiting pin 7 that extends out of the sliding sleeve 26 away from the fixed block 24. When the adjusting arm plate 5 is installed and removed, the pull cap 28 can be pulled to overcome the elastic force of the spring 27, causing the limiting pin 7 to disengage from the limiting strip arc hole.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0032] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An adjustable photovoltaic panel cleaning device, comprising a frame (1), a track assembly and a control box (2) mounted on the frame (1), support arm plates (4) fixed at both ends of the frame (1), an adjusting arm plate (5) connected to the support arm plate (4), a cleaning bracket (9) fixed at the other end of the adjusting arm plate (5), a cleaning brush roller (11) rotatably mounted on the cleaning bracket (9), a cleaning drive mechanism connected to the cleaning brush roller (11), and a walking drive assembly connected to the track assembly, characterized in that: A pivot pin (6) is fixed on the support arm plate (4). A limiting pin (7) and a limiting fixing pin (8) are provided on the outside of the pivot pin (6). The limiting pin (7) is located between the pivot pin (6) and the limiting fixing pin (8). A pivot hole that cooperates with the pivot pin (6) is provided on the adjusting arm plate (5). A limiting strip arc hole and an arc-shaped limiting strip opening groove are provided on the adjusting arm plate (5) outside the pivot hole. The opening of the limiting strip opening groove is located on the bottom wall of the adjusting arm plate (5). The limiting fixing pin (8) and the limiting pin (7) extend into the limiting strip opening groove and the limiting strip arc hole, respectively.

2. The adjustable photovoltaic panel cleaning device according to claim 1, characterized in that: The inner side of the rotating hole is connected to a downwardly sloping inlet / outlet opening (22).

3. The adjustable photovoltaic panel cleaning device according to claim 1, characterized in that: A fixed block (24) is fixed on the support arm plate (4), and a pivot pin (6) and a limiting pin (8) are fixed on the fixed block (24). A limiting pin (7) is movably installed on the fixed block (24).

4. The adjustable photovoltaic panel cleaning device according to claim 1, characterized in that: The cleaning drive mechanism includes a cleaning motor (10) fixed on a U-shaped cleaning bracket (9). The cleaning motor (10) is fixedly connected to a cleaning connecting shaft (25). The outer end of the cleaning connecting shaft (25) is rotatably mounted on the cleaning bracket (9) and fixedly connected to an active synchronous pulley. The active synchronous pulley is connected to a driven synchronous pulley via a synchronous belt. The driven synchronous pulley is fixed on one end of the cleaning brush roller (11).

5. The adjustable photovoltaic panel cleaning device according to claim 4, characterized in that: The outer sides of the active synchronous pulley, the synchronous belt, and the driven synchronous pulley are provided with protective covers fixed on the cleaning bracket (9).

6. The adjustable photovoltaic panel cleaning device according to claim 1, characterized in that: A protective plate (13) is provided above the cleaning brush roller (11). A support plate (12) is fixed at the bottom of the protective plate (13). The support plate (12) is fixed on the cleaning bracket (9). The outer end of the support plate (12) is provided with a downward supporting bending edge. The lower end of the protective plate (13) is provided with a protective bending edge that cooperates with the supporting bending edge. The top of the protective plate (13) is provided with an upward bending flange.

7. An adjustable photovoltaic panel cleaning device according to claim 6, characterized in that: The lower end of the protective plate (13) is provided with an installation platform. Multiple installation holes are provided on the installation platform along the axial direction of the cleaning brush roller (11). A cleaning nozzle (15) is fixed on the installation hole. A guide pipe (14) is fixed on the top of the cleaning nozzle (15). The guide pipe (14) is connected to a diversion sleeve (20) fixed on the control box (2) through a conveying hose (17). A rotary joint (19) is connected to the top inlet of the diversion sleeve (20). A water inlet pipe (18) is fixed at the inlet of the rotary joint (19).

8. An adjustable photovoltaic panel cleaning device according to claim 7, characterized in that: The lower end of the protective plate (13) is provided with a protective flange (21) for the downward-facing protective cleaning nozzle (15).

9. The adjustable photovoltaic panel cleaning device according to claim 1, characterized in that: The track assembly includes two tracks on both sides of the frame (1). Each track has a track drive wheel at both ends. The track drive wheel is connected to a track shaft (3). The track shaft (3) at one end is fixed to the track drive wheel and is fixedly connected to a travel motor (23). The travel motor (23) is fixed on the frame (1). The track shaft (3) at the other end is rotatably connected to the track drive wheel and both ends extend into the strip-shaped adjustment hole on the frame (1). A rotating seat fixed on the frame (1) is provided on the outside of the adjustment hole. An adjustment bolt (16) is rotatably installed on the rotating seat. The adjustment bolt (16) is threadedly connected to the track shaft (3) at the other end. A limiting platform that cooperates with the adjustment hole is provided on the track shaft (3) at the other end.

10. An adjustable photovoltaic panel cleaning device according to claim 3, characterized in that: A sliding sleeve (26) is fixed on the fixed block (24) and fitted on the limiting pin (7). A sliding ring fixed on the limiting pin (7) is slidably provided inside the sliding sleeve (26). A spring (27) fitted on the limiting pin (7) is provided on the side of the sliding ring away from the fixed block (24). A pull cap (28) is fixed on the end of the limiting pin (7) away from the fixed block (24) extending out of the sliding sleeve (26).

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