Gantry type solar photovoltaic panel cleaning device

Abstract

The invention discloses a gantry type solar photovoltaic panel cleaning device, which belongs to the field of photovoltaic panel cleaning equipment, and comprises a walking mechanism, a stand column and a cleaning mechanism, the walking mechanism comprises a frame, walking wheels are rotationally connected to the two ends of the frame, and a first motor and a first speed reducer for driving the walking wheels to walk are installed on one side of the frame. Fixed seats are arranged at the upper ends of the upright posts; the cleaning mechanism comprises a connecting frame, the two ends of the connecting frame are connected with the fixing base, the lower portion of the connecting frame is connected with a cleaning frame through a hanging rod, a rotating brush is rotationally connected into the cleaning frame, one end of the cleaning frame is fixedly connected with a second motor and a second speed reducer, and an output shaft of the second speed reducer is connected with a rotating brush shaft. A gantry type self-walking structure and a rotary type rotary brush cleaning structure are adopted, the problems that an existing photovoltaic panel cleaning device is prone to slipping, tedious to install, insufficient in cleaning strength, prone to damaging a photovoltaic panel, low in manual cleaning efficiency, high in cost and poor in safety are solved, and the cleaning effect and efficiency of the photovoltaic panel are guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic panel cleaning equipment, specifically relating to a gantry-type solar photovoltaic panel cleaning device. Background Technology

[0002] Solar photovoltaic modules are exposed to the outdoor environment for extended periods, making their surfaces highly susceptible to the accumulation of dust, bird droppings, and other contaminants. While dust can be easily cleaned with a regular brush, bird droppings are highly adhesive and require repeated scrubbing with water to remove. Failure to clean these modules regularly will significantly negatively impact the operating efficiency of the photovoltaic power station and the lifespan of the modules. First, dust accumulation will block sunlight and reduce light transmittance, thus affecting the power generation efficiency of solar photovoltaic panels.

[0003] Secondly, dust accumulation can hinder heat dissipation from the photovoltaic panel surface, causing a hot spot effect. Experiments show that for every 1°C increase in battery temperature, the output power decreases by about 0.5%, and long-term overheating can also accelerate the aging of the components.

[0004] In addition, moist dust can form a corrosive medium that erodes the photovoltaic panel glass and encapsulation structure, reducing the long-term reliability of the module.

[0005] Currently, photovoltaic panel cleaning is mainly divided into two categories: manual cleaning and automated cleaning, both of which have significant technical limitations. The tools used for manual cleaning have gradually upgraded from ordinary brooms and brushes to electric mops. The advantage of manual cleaning is that it is flexible in operation and can achieve targeted cleaning. However, the disadvantages are also prominent, mainly reflected in: low cleaning efficiency, high labor costs, and in large ground-mounted power stations in remote areas, the organization of personnel is extremely difficult. In addition, some scenarios require working at heights, which poses significant safety hazards and makes it difficult to adapt to large-scale and routine cleaning needs.

[0006] Automated cleaning methods can be mainly categorized into two types: wall-mounted cleaning robots and panel-mounted cleaning robots. Wall-mounted cleaning robots are attached to the edges of photovoltaic panels to move and clean, making them suitable for a wide range of scenarios. However, they require a high degree of flatness of the photovoltaic panel edges, necessitating precise clamping of the top and bottom edges before operation. This cumbersome installation and positioning process limits their adaptability. Panel-mounted cleaning robots, on the other hand, rely directly on friction to move and operate on the surface of the photovoltaic panels. However, the surface friction coefficient of photovoltaic panels is already low, and panel tilting and surface dust further reduce friction, making them prone to slipping and deviation. Furthermore, the weight of the equipment cannot be increased due to the load-bearing capacity of the photovoltaic panels, resulting in insufficient cleaning power, difficulty in guaranteeing cleaning effectiveness, and the risk of damaging the photovoltaic panel surface. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a gantry-type solar photovoltaic panel cleaning device. By utilizing a gantry-type self-propelled structure and a rotating brush cleaning structure, it solves the problems of existing photovoltaic panel cleaning devices such as easy slippage, cumbersome installation, insufficient cleaning power, easy damage to photovoltaic panels, as well as low efficiency, high cost, and poor safety of manual cleaning, and achieves efficient cleaning of stains on the surface of photovoltaic panels.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A gantry-type solar photovoltaic panel cleaning device includes: Two sets of walking mechanisms are set on both sides of the photovoltaic module to drive the cleaning device to move along the solar photovoltaic panel. The walking mechanism includes a frame, with walking wheels rotatably connected to both ends of the frame. A first motor and a first reducer for driving the walking wheels are installed on one side of the frame. A column is installed on the vehicle frame, and a fixing seat is provided at the upper end of the column; A cleaning mechanism is used to clean photovoltaic panels. The cleaning mechanism includes a connecting frame, both ends of which are connected to a fixed base. A cleaning frame is connected to the lower part of the connecting frame via a hanging rod. A rotating brush is rotatably connected inside the cleaning frame. The rotating brush is arranged parallel to the photovoltaic panel, and the bottom of the rotating brush is in contact with the surface of the photovoltaic panel. A second motor and a second reducer are fixedly connected to one end of the cleaning frame. The output shaft of the second reducer is connected to the rotating brush shaft to drive the rotating brush to rotate.

[0009] Furthermore, a turntable is rotatably connected to the upper part of the fixed base, and the end of the connecting frame is connected to the turntable. The turntable is provided with a plurality of circumferentially evenly arranged adjustment holes, and adjustment bolts are provided in the adjustment holes. The fixed base is provided with threaded holes, and the adjustment bolts are threadedly connected to the threaded holes.

[0010] Furthermore, the upper part of the column is provided with several extension columns, the ends of which are provided with flanges, and adjacent extension columns are connected by flanges; sleeves are provided on both sides of the column, the bottom of which is fixedly connected to the frame, and several guide rods connected end to end are provided inside the sleeves, the lower end of which is provided with a protrusion, and the upper end of which is provided with a slot that mates with the protrusion; the uppermost extension column and guide rods are both fixedly connected to the fixed base, and the connecting frame is hinged to the turntable.

[0011] Furthermore, a guide mechanism is provided on one side of the column for guiding the cleaning device when it moves. The guide mechanism includes a mounting base with several support rods on it. One end of each support rod is connected to a guide wheel, which abuts against the cross brace on the photovoltaic module support frame.

[0012] Furthermore, the support rod is intermittently inserted into the mounting base, and the mounting base is threaded with a first adjustment knob. The end of the first adjustment knob abuts against the support rod and is used to adjust the extension length of the guide wheel so that the guide wheel abuts against the cross brace of the support frame. The side walls of the column and the sleeve are provided with guide rails, and the mounting base is provided with several guide grooves. The guide rails slide with the guide grooves. The mounting base is threaded with several second adjustment knobs on one side, and the ends of the second adjustment knobs abut against the sleeve and are used to adjust the height of the mounting base to adapt to the height of the cross brace of the support frame.

[0013] Furthermore, the column is equipped with a fine-tuning mechanism for adjusting the height and tilt angle of the cleaning mechanism. The fine-tuning mechanism includes a rotating shaft rotatably installed inside the column, a drive wheel fixedly connected to the rotating shaft, and a handwheel connected to one end of the rotating shaft extending outside the column. A first fixing plate is fixedly connected inside the column, and a stud is rotatably connected to the first fixing plate. A driven wheel that meshes with the drive wheel is provided at the lower end of the stud. A second fixing plate is fixedly connected inside the extension column at the lowest end, and the stud is threadedly connected to the second fixing plate.

[0014] Furthermore, a spring is fitted around the outside of the boom, with one end of the spring connected to the connecting frame and the other end connected to the cleaning frame.

[0015] Furthermore, the brush bristles of the rotating brush are arranged in a spiral, and a protective cover is provided on the upper part of the connecting frame.

[0016] Furthermore, water pipes are fixedly connected to both sides of the connecting frame. Several water nozzles facing the photovoltaic panel are evenly arranged along the axial direction of the water pipes. The water nozzles on the side closer to the direction of travel of the cleaning device are used to spray cleaning agent to wet the surface of the photovoltaic panel, while the water nozzles on the side farther away from the direction of travel of the cleaning device are used to rinse the photovoltaic panel again after brushing.

[0017] Furthermore, an air pipe is provided next to the water pipe on the side away from the direction of travel of the cleaning device. Several air nozzles are evenly arranged along the axial direction of the air pipe and face the surface of the photovoltaic panel for quickly drying the cleaned photovoltaic panel.

[0018] The beneficial effects of this invention are: (1) The present invention adopts a gantry-type self-propelled structure and a rotating brush cleaning structure, which solves the problems of easy slippage, complicated installation, insufficient cleaning power, easy damage to photovoltaic panels, low efficiency, high cost and poor safety of existing photovoltaic panel cleaning devices, and ensures the cleaning effect and efficiency of photovoltaic panels.

[0019] (2) The arrangement angle of the cleaning mechanism and the rotating brush can be flexibly adjusted by the combination of the turntable, adjustment hole and adjustment bolt. The misalignment of the walking mechanism on both sides can be changed according to the length of the photovoltaic panel to ensure that the effective working area of ​​the rotating brush completely covers the panel surface, avoid the occurrence of ineffective cleaning areas and improve the versatility of the device. At the same time, the total length of the column can be flexibly adjusted according to the installation height of the photovoltaic panel by the extension column at the top of the column. With the sleeve and plug-in guide rod, auxiliary support is formed, so that the device can be adapted to photovoltaic modules of different heights and sizes, and realize multi-dimensional adjustment of height and angle. While ensuring the cleaning effect, the adaptability and operational reliability of the device are greatly improved.

[0020] (3) By setting a guide mechanism on one side of the column, the guide wheel and the cross brace of the photovoltaic module support frame are engaged to achieve real-time guidance and limiting during the movement of the cleaning device, ensuring that the device moves stably along the preset route, avoiding deviation, improving cleaning uniformity, and preventing the column from colliding with or rubbing the photovoltaic panel, thus effectively protecting the photovoltaic module. The extension length of the support rod and guide wheel can be adjusted by the first adjustment knob to ensure that the guide wheel and the cross brace are reliably engaged. The overall height of the mounting base and guide wheel can be adjusted by the guide rail, guide groove and the second adjustment knob to adapt to the cross brace of the support frame at different heights, greatly improving the adjustment flexibility and applicability of the guide mechanism, ensuring accurate guidance under different working conditions, and further improving the stability and reliability of the device operation.

[0021] (4) By setting a fine-tuning mechanism inside the column, turning the handwheel can drive the stud to rotate through gear meshing, thereby driving the extension column to move up and down, achieving precise fine-tuning of the height and tilt angle of the column and cleaning mechanism, ensuring reliable contact between the rotating brush and the photovoltaic panel surface, avoiding cleaning dead corners, and preventing excessive pressure from the rotating brush from damaging the photovoltaic panel. Combined with the spring sleeved on the outside of the hanging rod, based on the precise adjustment of the fine-tuning mechanism, the elastic pre-tightening force of the spring is used to maintain a suitable contact pressure between the rotating brush and the panel surface, which can effectively remove stubborn stains such as dust and bird droppings, and also buffer and reduce vibration to protect the photovoltaic panel, further improving the cleaning effect and the stability of the device operation.

[0022] (5) Water pipes are installed on both sides of the connecting frame. The water nozzles near the direction of travel of the cleaning device spray cleaning agent in advance to wet and soften the dirt such as dust and bird droppings on the surface of the photovoltaic panel, reduce the adhesion of the dirt, and facilitate efficient brushing in the subsequent process. The water nozzles away from the direction of travel rinse the panel surface a second time after brushing to remove residual dirt and brush marks, significantly improving the cleaning effect. At the same time, air pipes are installed next to the water pipes away from the direction of travel to quickly dry the photovoltaic panel after rinsing by airflow, avoiding the formation of water stains and scale on the panel surface, which would affect the light transmittance and power generation efficiency. Attached Figure Description

[0023] Figure 1 This is a front view of a gantry-type solar photovoltaic panel cleaning device according to the present invention.

[0024] Figure 2 This is a diagram showing the usage status of a gantry-type solar photovoltaic panel cleaning device according to the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of a gantry-type solar photovoltaic panel cleaning device according to the present invention.

[0026] Figure 4 This is a schematic diagram of the assembly of the column and the guide mechanism.

[0027] Figure 5 This is a schematic diagram of the extended column structure.

[0028] Figure 6 This is a schematic diagram of the guide rod structure.

[0029] Figure 7 This is an exploded view of the fixed base and the turntable.

[0030] Figure 8 This is a schematic diagram of the fine-tuning mechanism assembly.

[0031] Figure 9 This is a schematic diagram of the guide mechanism.

[0032] Figure 10 This is a schematic diagram of the cleaning mechanism.

[0033] Figure 11 This is a schematic diagram of the connecting frame.

[0034] Figure 12 This is a schematic diagram of a cleaning rack.

[0035] In the picture: 1. Photovoltaic modules; 11. Support frame; 12. Photovoltaic panels; 2. Walking mechanism; 21. Frame; 22. Walking wheels; 23. First motor; 24. First reducer; 3. Column; 31. Extension column; 32. Sleeve; 33. Guide rod; 331. Protrusion; 332. Slot; 34. Fixing base; 341. Threaded hole; 35. Turntable; 351. Adjustment hole; 352. Adjustment bolt; 36. Guide rail; 4. Fine-tuning mechanism; 41. Rotating shaft; 42. Driving wheel; 43. Handwheel; 44. First fixed plate; 45. Stud; 46. Driven wheel; 47. Second fixed plate; 5. Guiding mechanism; 51. Mounting base; 511. Guide groove; 52. Support rod; 53. Guide wheel; 54. First adjustment knob; 55. Second adjustment knob; 6. Cleaning mechanism; 61. Connecting frame; 62. Protective cover; 63. Water pipe; 64. Spray nozzle; 65. Air pipe; 66. Air nozzle; 67. Cleaning frame; 68. Rotary brush; 69. Second motor; 610. Second reducer; 611. Hanging rod; 612. Spring. Detailed Implementation

[0036] The following will be combined with the appendix Figures 1-12 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 invention.

[0038] like Figures 1-3 As shown, a gantry-type solar photovoltaic panel cleaning device includes two sets of walking mechanisms 2 disposed on both sides of the photovoltaic module 1, columns 3 disposed on the walking mechanisms 2, and a cleaning mechanism 6 connected to the top of the columns on both sides. The walking mechanisms 2 are used to drive the cleaning device to move along the solar photovoltaic panel 12. Figure 4 As shown, the walking mechanism 2 includes a frame 21, with walking wheels 22 rotatably connected to both ends of the frame 21. A first motor 23 and a first reducer 24 for driving the walking wheels 22 are installed on one side of the frame 21. A column 3 is installed on the frame 21, and a fixed seat 34 is provided at the upper end of the column 3.

[0039] The cleaning unit 6 is used to clean the photovoltaic panel 12, such as... Figures 10-12 As shown, the cleaning mechanism 6 includes a connecting frame 61, with both ends of the connecting frame 61 connected to the fixed base 34. The lower part of the connecting frame 61 is connected to a cleaning frame 67 via a hanging rod 611. A rotating brush 68 is rotatably connected inside the cleaning frame 67. The rotating brush 68 is arranged parallel to the photovoltaic panel, and the bottom of the rotating brush 68 is in contact with the surface of the photovoltaic panel 12. A second motor 69 and a second reducer 610 are fixedly connected to one end of the cleaning frame 67. The output shaft of the second reducer 610 is connected to the rotating brush shaft to drive the rotating brush 68 to rotate, thereby brushing the dirt on the surface of the photovoltaic panel 12.

[0040] In this solution, a walking mechanism 2, located on both sides of the photovoltaic module 1, drives the device to move along the solar photovoltaic panel 12. A second motor 69 and a second reducer 610 drive the rotating brush 68 within the cleaning frame 67 to rotate continuously, causing the brush 68 to contact the surface of the photovoltaic panel 12 and perform a brushing operation. During the device's movement, continuous cleaning of the photovoltaic panel 12 is completed. The gantry-type integrated structure allows for stable mounting above the photovoltaic module 1, ensuring smooth and reliable operation and preventing pressure or damage to the photovoltaic panel 12. Simultaneously, the rotating brush 68 effectively removes accumulated dust and stubborn bird droppings from the surface of the photovoltaic panel 12, resulting in excellent cleaning performance, high efficiency, a simple overall structure, stable operation, and strong adaptability, meeting the automated cleaning needs of photovoltaic modules 1, especially large photovoltaic modules 1.

[0041] like Figure 4 , Figure 7 As shown, a turntable 35 is rotatably connected to the upper part of the fixed base 34, and the end of the connecting frame 61 is connected to the turntable 35. The turntable 35 is provided with several circumferentially evenly arranged adjustment holes 351, and adjustment bolts 352 are provided in the adjustment holes 351. The fixed base 34 is provided with threaded holes 341, and the adjustment bolts 352 are threadedly connected to the threaded holes 341.

[0042] In this design, the turntable 35 is positioned and fixed by adjusting bolt 352. When the turntable 35 rotates, it drives the connecting frame 61 and the cleaning frame 67 connected to it to rotate synchronously, thereby adjusting the angle of the rotating brush 68 on the surface of the photovoltaic panel 12. This allows for flexible adjustment of the working angle of the rotating brush 68 according to the actual length of the photovoltaic panel 12. For example, when the photovoltaic panel 12 is short, rotating the turntable 35 increases the forward and backward misalignment of the two walking mechanisms 2, causing the rotating brush 68 to be tilted above the photovoltaic panel 12. This ensures that the effective working area of ​​the rotating brush 68 completely covers the surface of the photovoltaic panel 12, avoiding ineffective working areas at the ends of the rotating brush 68. When the photovoltaic panel 12 is long, rotating the turntable 35 reduces the misalignment of the two walking mechanisms 2, making the rotating brush 68 compatible with the length of the photovoltaic panel 12 while maintaining the effective working area of ​​the rotating brush 68 covering the surface of the photovoltaic panel 12. This adapts to the cleaning needs of photovoltaic panels 12 of different specifications, expands the applicability of the cleaning device, and improves its versatility.

[0043] like Figures 4-6As shown, the upper part of the column 3 is provided with several extension columns 31, and the ends of the extension columns 31 are provided with flanges. Adjacent extension columns 31 are connected by flanges. The two sides of the column 3 are provided with sleeves 32. The bottom of the sleeves 32 is fixedly connected to the frame 21. The sleeves 32 are provided with several guide rods 33 connected end to end. The lower end of the guide rods 33 is provided with a protrusion 331, and the upper end of the guide rods 33 is provided with a slot 332 that mates with the protrusion 331. The uppermost extension column 31 and guide rod 33 are both fixedly connected to the fixed seat 34. The connecting frame 61 is hinged to the turntable 35.

[0044] In this solution, by setting an extension column 31, the length of the column 3 can be flexibly extended according to the actual installation height of the photovoltaic panel 12. At the same time, the sleeves 32 fixed to the frame 21 on both sides of the column 3 and the guide rods 33 that can be inserted end to end to form an auxiliary support structure. While realizing the height adjustment of the cleaning device and adapting to the cleaning operation of photovoltaic panels 12 at different installation heights, it significantly enhances the connection rigidity between the fixed base 34 and the column 3 and the overall structural stability and reliability.

[0045] like Figure 4 , Figure 9 As shown, a guide mechanism 5 is provided on one side of the column 3 for guiding the cleaning device when it moves. The guide mechanism 5 includes a mounting base 51, and several support rods 52 are provided on the mounting base 51. One end of the support rod 52 is connected to a guide wheel 53, and the guide wheel 53 abuts against the cross brace on the support frame 11 of the photovoltaic module 1.

[0046] In this scheme, the guide wheel 53 of the guide mechanism 5 abuts against the cross brace on the support frame 11 of the photovoltaic module 1, realizing real-time guidance and limiting during the movement of the cleaning device along the photovoltaic panel 12, ensuring that the cleaning device moves stably along the preset route, avoiding deviation, and thus ensuring the consistency of cleaning the surface of the photovoltaic panel 12. At the same time, it avoids collision and friction between the column 3 and the photovoltaic panel 12, protecting the photovoltaic module 1 from damage, and further improving the stability of the device operation and the reliability of the cleaning operation.

[0047] like Figure 9 As shown, the support rod 52 is intermittently inserted into the mounting base 51. A first adjustment knob 54 is threaded onto the mounting base 51. The end of the first adjustment knob 54 abuts against the support rod 52 and is used to adjust the extension length of the guide wheel 53 so that the guide wheel 53 abuts against the cross brace of the support frame 11. Guide rails 36 are provided on the side walls of the column 3 and the sleeve 32. Several guide grooves 511 are provided on the mounting base 51. The guide rails 36 and the guide grooves 511 are slidably engaged. Several second adjustment knobs 55 are threaded onto one side of the mounting base 51. The end of the second adjustment knob 55 abuts against the sleeve 32 and is used to adjust the height of the mounting base 51 to adapt to the height of the cross brace of the support frame 11. This improves the applicability and adjustment flexibility of the guiding mechanism 5, ensures that the cleaning device can achieve accurate guidance under different working conditions, and guarantees the stability of the device operation.

[0048] like Figure 8 As shown, the column 3 is equipped with a fine-tuning mechanism 4 for adjusting the height and tilt angle of the cleaning mechanism 6. The fine-tuning mechanism 4 includes a rotating shaft 41 rotatably installed inside the column 3, a drive wheel 42 fixedly connected to the rotating shaft 41, and a handwheel 43 connected to one end of the rotating shaft 41 extending outside the column 3. A first fixing plate 44 is fixedly connected inside the column 3, and a stud 45 is rotatably connected to the first fixing plate 44. A driven wheel 46 that meshes with the drive wheel 42 is provided at the lower end of the stud 45. A second fixing plate 47 is fixedly connected inside the extension column 31 at the lowest end, and the stud 45 is threadedly connected to the second fixing plate 47.

[0049] In this solution, the handwheel 43 is turned to drive the rotating shaft 41 and the drive wheel 42 to rotate. The drive wheel 42 drives the stud 45 to rotate through the driven wheel 46. When the stud 45 rotates, it drives the extension column 31 to move up and down along the column 3 through the second fixed plate 47, thereby realizing the fine adjustment of the overall height of the column 3. This, in turn, drives the cleaning mechanism 6 to make fine adjustments to its height and tilt angle, ensuring that the rotating brush 68 always keeps in contact with the surface of the photovoltaic panel 12, avoiding cleaning dead corners caused by insufficient contact of the rotating brush 68, ensuring the cleaning effect of the photovoltaic panel 12, and preventing damage to the photovoltaic panel 12 caused by excessive contact between the brush and the photovoltaic panel 12.

[0050] like Figure 12 As shown, a spring 612 is sleeved on the outside of the hanging rod 611. One end of the spring 612 is connected to the connecting frame 61, and the other end of the spring 612 is connected to the cleaning frame 67. Based on the adjustment of the height and tilt angle of the cleaning mechanism 6 by the fine-tuning mechanism 4, the elastic pre-tightening force of the spring 612 keeps the rotating brush 68 and the surface of the photovoltaic panel 12 in a suitable contact pressure. This avoids the problem that the rotating brush 68 and the photovoltaic panel 12 are too loose, which would prevent stubborn stains (such as bird droppings) from being thoroughly cleaned. It also prevents the surface of the photovoltaic panel 12 from being worn due to excessive contact, thus ensuring the cleaning effect of the rotating brush 68 on the photovoltaic panel 12.

[0051] like Figure 12 As shown, the bristles of the rotating brush 68 are arranged in a spiral to facilitate the transfer of the dirt washed off the photovoltaic panel 12 to the lower part of the photovoltaic panel 12; the upper part of the connecting frame 61 is provided with a protective cover 62 to prevent dirt from splashing when the cleaning device is working.

[0052] like Figure 10 , Figure 11 As shown, water pipes 63 are fixedly connected to both sides of the connecting frame 61. Several water nozzles 64 are evenly arranged along the axial direction of the water pipes 63, facing the photovoltaic panel 12. The water nozzles 64 on the side closer to the direction of travel of the cleaning device are used to spray cleaning agent to wet the surface of the photovoltaic panel 12, and the water nozzles 64 on the side away from the direction of travel of the cleaning device are used to rinse the photovoltaic panel 12 again after brushing.

[0053] In this solution, when the cleaning device moves, the water nozzle 64 on the side closest to the direction of movement sprays out cleaning agent first, which wets and softens the dirt such as dust and bird droppings on the surface of the photovoltaic panel 12, reducing the adhesion of the dirt and providing assistance for the subsequent brushing by the rotating brush 68, making it easier to thoroughly remove stubborn dirt (such as bird droppings); then the rotating brush 68 brushes the softened dirt, and the water nozzle 64 on the side away from the direction of movement sprays clean water at the same time to rinse the surface of the photovoltaic panel 12 after brushing, washing away the brush marks and residual dirt of the rotating brush 68, further improving the cleaning effect of the photovoltaic panel 12.

[0054] like Figure 11 As shown, an air pipe 65 is located next to the water pipe 63 on the side away from the direction of travel of the cleaning device. Several air nozzles 66 are evenly arranged along the axial direction of the air pipe 65, facing the surface of the photovoltaic panel 12, for quickly drying the cleaned photovoltaic panel 12. During the movement of the cleaning device, the air nozzles 66 spray airflow onto the surface of the photovoltaic panel 12, quickly drying the surface after water rinsing, removing residual moisture in time, and preventing water stains and scale buildup that could affect light transmittance and power generation efficiency.

[0055] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A gantry-type solar photovoltaic panel cleaning device, comprising: Two sets of walking mechanisms are set on both sides of the photovoltaic module. Each walking mechanism includes a frame, with walking wheels rotatably connected to both ends of the frame. A first motor and a first reducer for driving the walking wheels are installed on one side of the frame. A column is installed on the vehicle frame, and a fixing seat is provided at the upper end of the column; The feature is that it further includes a cleaning mechanism, the cleaning mechanism including a connecting frame, the two ends of the connecting frame being connected to the fixed base, the lower part of the connecting frame being connected to a cleaning frame via a hanging rod, a rotating brush being rotatably connected inside the cleaning frame, the rotating brush being arranged parallel to the photovoltaic panel, and the bottom of the rotating brush contacting the surface of the photovoltaic panel, a second motor and a second reducer being fixedly connected to one end of the cleaning frame, and the output shaft of the second reducer being connected to the rotating brush shaft.

2. The gantry-type solar photovoltaic panel cleaning device according to claim 1, characterized in that, The upper part of the fixed base is rotatably connected to a turntable, the end of the connecting frame is connected to the turntable, the turntable is provided with a number of circumferentially evenly arranged adjustment holes, the adjustment holes are provided with adjustment bolts, the fixed base is provided with threaded holes, and the adjustment bolts are threadedly connected to the threaded holes.

3. The gantry-type solar photovoltaic panel cleaning device according to claim 2, characterized in that, The upper part of the column is provided with several extension columns, and the ends of the extension columns are provided with flanges. Adjacent extension columns are connected by flanges. Sleeves are provided on both sides of the column. The bottom of the sleeves is fixedly connected to the frame. Several guide rods connected end to end are provided inside the sleeves. The lower end of the guide rod is provided with a protrusion, and the upper end of the guide rod is provided with a slot that mates with the protrusion. The uppermost extension column and guide rod are fixedly connected to the fixed seat. The connecting frame is hinged to the turntable.

4. The gantry-type solar photovoltaic panel cleaning device according to claim 1, characterized in that, A guide mechanism is provided on one side of the column to guide the cleaning device when it moves. The guide mechanism includes a mounting base with several support rods on it. One end of each support rod is connected to a guide wheel, which abuts against the cross brace on the photovoltaic module support frame.

5. A gantry-type solar photovoltaic panel cleaning device according to claim 4, characterized in that, The support rod is intermittently inserted into the mounting base. A first adjustment knob is threaded onto the mounting base, the end of which abuts against the support rod. This knob is used to adjust the extension length of the guide wheel, ensuring that the guide wheel abuts against the cross brace of the support frame. Guide rails are provided on the side walls of the column and the sleeve. The mounting base has several guide grooves, which slide in conjunction with the guide rails. Several second adjustment knobs are threaded onto one side of the mounting base, the ends of which abut against the sleeve. These knobs are used to adjust the height of the mounting base to accommodate the height of the cross brace of the support frame.

6. A gantry-type solar photovoltaic panel cleaning device according to claim 3, characterized in that, The column is equipped with a fine-tuning mechanism for adjusting the height and tilt angle of the cleaning mechanism. The fine-tuning mechanism includes a rotating shaft rotatably installed inside the column, a drive wheel fixedly connected to the rotating shaft, and a handwheel connected to one end of the rotating shaft extending outside the column. A first fixing plate is fixedly connected inside the column, and a stud is rotatably connected to the first fixing plate. A driven wheel that meshes with the drive wheel is provided at the lower end of the stud. A second fixing plate is fixedly connected inside the lowermost extension column, and the stud is threadedly connected to the second fixing plate.

7. A gantry-type solar photovoltaic panel cleaning device according to claim 6, characterized in that, A spring is fitted around the outside of the boom. One end of the spring is connected to the connecting frame, and the other end of the spring is connected to the cleaning frame.

8. The gantry-type solar photovoltaic panel cleaning device according to claim 1, characterized in that, The brush bristles are arranged in a spiral, and a protective cover is provided on the upper part of the connecting frame.

9. A gantry-type solar photovoltaic panel cleaning device according to any one of claims 1-8, characterized in that, Water pipes are fixedly connected to both sides of the connecting frame. Several water nozzles are evenly arranged along the axial direction of the water pipes, facing the photovoltaic panel. The water nozzles on the side closer to the direction of travel of the cleaning device are used to spray cleaning agent to wet the surface of the photovoltaic panel, while the water nozzles on the side farther away from the direction of travel of the cleaning device are used to rinse the photovoltaic panel again after brushing.

10. A gantry-type solar photovoltaic panel cleaning device according to claim 9, characterized in that, An air pipe is located next to the water pipe on the side away from the direction of travel of the cleaning device. Several air nozzles are evenly arranged along the axial direction of the air pipe and face the surface of the photovoltaic panel for quickly drying the photovoltaic panel after cleaning.

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