A photovoltaic bracket for roof mounting

Abstract

This invention relates to the field of photovoltaic (PV) bracket technology, specifically a PV bracket for rooftop installation. It includes a base, a PV panel connecting frame on the inner top of the base, a protective mechanism on the top of the base, and a bottom plate. Supporting side plates are fixedly connected to the left and right sides of the bottom of the bottom plate, and a control component is fixedly connected to the bottom of the bottom plate. This invention, by incorporating the base, PV panel connecting frame, and protective mechanism, achieves automated adjustment and efficient cleaning of the PV bracket. This not only improves the light-emitting area and photoelectric conversion efficiency of the PV panel but also effectively ensures the cleanliness and power generation efficiency of the PV panel. Through intelligent control of the motor's forward and reverse rotation, coordinated movement of the PV panel connecting frame and the protective mechanism is achieved, allowing the PV panel to automatically adjust according to the sun's position, always maintaining the optimal light angle. Simultaneously, during the movement of the protective mechanism, the cleaning component automatically cleans the surface of the PV panel.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic mounting technology, and more specifically, to a photovoltaic mounting bracket for vehicle roof mounting. Background Technology

[0002] A photovoltaic (PV) mounting system is a structural system specifically designed to install and support photovoltaic (PV) modules (such as solar panels). It is typically fixed to a vehicle roof or other flat surface to ensure that the PV modules can stably and safely receive sunlight and convert it into electricity. PV mounting systems come in a variety of designs and structures to adapt to different installation environments and needs. They not only provide the necessary support but also often have angle-adjustable features to adjust the tilt angle of the PV modules according to the sun's position, thereby maximizing solar energy capture efficiency. Furthermore, PV mounting systems must possess good durability and wind pressure resistance to ensure the stable operation of the PV system even under harsh weather conditions.

[0003] According to patent document CN119561460A, a photovoltaic panel support is disclosed, comprising: an external component including a support frame and a support frame disposed between the support frame; a transmission component including a fixed frame disposed on both sides of the support frame, a first connecting cylinder disposed inside the fixed frame, and a transmission rod disposed at one end of the first connecting cylinder; a wind pressure component including a fixed rod disposed at one end of the fixed frame, a fixed ring disposed at one end of the fixed rod, and an operating rod sleeved inside the fixed ring; and a rotation component including a shaft disposed at one end of the first connecting cylinder. The invention utilizes strong winds to drive the wind pressure component, which in turn drives the transmission component to rotate. During the rotation of the transmission component, the transmission component drives the rotation component to rotate, which in turn drives the outer support frame to rotate, making it parallel, reducing the windward area, and preventing damage.

[0004] Photovoltaic panels are mounted on the roof of vehicles via a bracket system. They utilize solar energy and can effectively convert sunlight into electricity on sunny days, providing the necessary power for the vehicle. However, when the weather is bad, the intensity of sunlight is greatly reduced. In addition, the intensity of sunlight gradually decreases in the evening. Under these circumstances, the conversion efficiency of the photovoltaic panels mounted on the bracket will drop significantly, making it difficult for them to generate enough electricity to meet the vehicle's power needs. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a photovoltaic bracket for vehicle roof mounting. The technical problem to be solved by the present invention is that when the weather conditions are bad, the intensity of sunlight will be greatly reduced. In addition, the intensity of sunlight will gradually decrease in the evening. Under these conditions, the conversion efficiency of the photovoltaic panels installed on the bracket will decrease significantly, making it difficult for them to generate enough electricity to meet the vehicle's power demand.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A photovoltaic bracket for roof mounting includes a base, a photovoltaic panel connecting frame is provided on the inner top side of the base, and a protective mechanism is provided on the top of the base.

[0008] The base includes a base plate, and support side plates are fixedly connected to the left and right sides of the bottom of the base plate. A control component is fixedly connected to the bottom of the base plate.

[0009] The photovoltaic panel connecting frame includes a movable plate, and a track connecting block is fixedly connected to the middle of both the left and right sides of the movable plate.

[0010] The protective mechanism includes a main body, and cleaning components are fixedly connected to both the front and rear sides of the bottom center of the main body.

[0011] The main body of the protective mechanism includes a protective base plate, and a reflector plate is provided on the top of the protective base plate.

[0012] As a further embodiment of the present invention: side plates are fixedly connected to the top left and right sides of the base plate, guide rods are fixedly connected to the top of the two side plates, L-shaped connecting blocks are fixedly connected to the front and rear sides of the two guide rods, columnar short rods are fixedly connected to the top inner sides of the two sets of L-shaped connecting blocks, rotating shaft connecting plates are fixedly connected to the top front and rear sides of the two side plates, rotating shafts are rotatably connected to the three inner sides of the two sets of rotating shaft connecting plates, and tracks are fitted onto the outer walls of the two sets of rotating shafts.

[0013] As a further embodiment of the present invention: the top of the base plate is fixedly connected to the left and right sides of the inner side of the two side plates with second guide rods, the top of the two side plates is fixedly connected to second guide rods, the top of the side plates is fixedly connected to the left and right sides of the inner side of the two side plates with second guide rods, the top center of the two side plates with second guide rods is provided with a groove, the inner center of the two side plates with second abutments is fixedly connected to the middle, and the top center of the second abutments is fixedly connected to a triangular abutment block.

[0014] As a further aspect of the present invention: the control component includes a motor connecting plate, the left and right sides of which are fixedly connected to the rear sides of the inner sides of two support side plates. A motor is fixedly connected to the top center of the motor connecting plate. A turntable is fixedly connected to the output end of the motor. A transmission track is fitted on the outer wall of the turntable. A second turntable is fitted on the inner side of the transmission track away from the turntable. A columnar horizontal rotating rod is fixedly connected to the inner wall of the second turntable. Two sleeve blocks are fitted on the left and right sides of the outer wall of the columnar horizontal rotating rod. A connecting plate connecting block is fixedly connected to the top of the left and right sets of sleeve blocks. A connecting plate is fixedly connected to the top of the two connecting plate connecting blocks. The tops of the two connecting plates are fixedly connected to the left and right sides of the bottom center of the base plate.

[0015] As a further aspect of the present invention: the outer walls of the two columnar horizontal rotating rods are fitted with second sleeve blocks on one side of the two sets of sleeve blocks, the tops of the two second sleeve blocks are fixedly connected to the bottom outer side of the two connecting plates, the left and right ends of the columnar horizontal rotating rods are both fixedly connected to the outer side of the connecting blocks of the two connecting plates, and the tops of the two side rotating rods are provided with side rotating rod grooves.

[0016] As a further embodiment of the present invention: Inverted U-shaped sliders are fixedly connected to the front and rear sides of the left and right sides of the bottom of the movable plate; the inner walls of the bottom of the two sets of inverted U-shaped sliders are slidably connected to the middle of the outer walls of the two second guide rods; the top inner walls of the two track connecting blocks are fixedly connected to the middle of the bottom outer walls of the two tracks; columnar lifting rod connecting blocks are fixedly connected to the middle of the front and rear sides of the movable plate; columnar lifting rods are slidably connected to the inner walls of the two columnar lifting rod connecting blocks; rotating wheels are rotatably connected to the bottom inner walls of the two columnar lifting rods; the bottom of the outer walls of the two rotating wheels are attached to the front and rear sides of the top of the second abutment plate; the tops of the two columnar lifting rods extend to the top of the two columnar lifting rod connecting blocks and are fixedly connected to inclined sliding groove blocks. Each of the inclined sliding blocks has an inclined sliding groove in its middle. The four sides of the middle of the moving plate are slidably connected to columnar telescopic rods. The bottom of each of the two sets of columnar telescopic rods extends to the bottom four sides of the moving plate and is fixedly connected to a second rotating wheel connecting block. The bottom inner wall of each of the two sets of second rotating wheel connecting blocks is rotatably connected to a second rotating wheel. The bottom of the outer wall of each of the left and right sets of second rotating wheels is attached to the bottom of the grooves opened in the two side plates. The top of each of the two sets of columnar telescopic rods extends to the top four sides of the moving plate and is rotatably connected to a photovoltaic panel. The middle of the front and rear sides of the photovoltaic panel is fixedly connected to a U-shaped block. The inner side of each of the two U-shaped blocks is fixedly connected to a columnar horizontal sliding rod. The outer wall of each of the two columnar horizontal sliding rods is slidably connected to the inner wall of the inclined sliding groove opened in the two inclined sliding blocks.

[0017] As a further aspect of the present invention: Second track connecting blocks are fixedly connected to both the left and right sides of the bottom center of the protective base plate; the bottoms of the two sets of U-shaped sliders of the protective base plate are slidably connected to the middle of the outer walls of the two guide rods; the bottom of the protective base plate is aligned with the top of the moving plate; the inner walls of the bottoms of the two second track connecting blocks are fixedly connected to the outer walls of the top center of the two tracks; reflector connecting side plates are fixedly connected to both the left and right sides of the top of the protective base plate; and reflectors are fixedly connected to the top and bottom of the inner sides of the two reflector connecting side plates. The guide rods and the two reflector connecting side plates have a hollow design on the inner side of the two sets of reflector guide rods. Springs are fixedly connected to the front and rear sides of the inner wall of the two reflector connecting side plates. Guide rotating plate connecting rods are rotatably connected to the middle of the top of the inner side of the two reflector connecting side plates. Guide rotating plates are fixedly connected to the inner ends of the two guide rotating plate connecting rods. Columnar abutments of the protective mechanism are fixedly connected to the middle of the left and right sides of the protective base plate. The outer walls of the columnar abutments of the two protective mechanisms are slidably connected to the inner walls of the side rotating rod grooves opened by the two side rotating rods.

[0018] As a further embodiment of the present invention: a reset block is slidably connected to the inner center of each of the two reflector connecting side plates; a moving block is fixedly connected to the inner side of each of the two reset blocks; a moving side block slider is fixedly connected to the four outer sides of each of the two moving blocks; the outer sides of the left and right sets of moving side block sliders are slidably connected to the outer walls of the left and right sets of reflector guide rods; an angle rotating rod columnar rotating block is rotatably connected to the inner center of each of the two moving blocks; an angle rotating rod is fixedly connected to the inner end of each of the two angle rotating rod columnar rotating blocks; the outer walls of each of the two angle rotating rods are slidably connected to the inner side of the two guide rotating plates; and the tops of each of the two angle rotating rods are fixedly connected to the left and right sides of the bottom center of the reflector.

[0019] As a further aspect of the present invention: both cleaning components include C-shaped connecting crossbars, and a sliding block is fixedly connected to the outer middle of both C-shaped connecting crossbars. A second spring is fixedly connected to the inner wall of both sliding blocks. Arc-shaped sliding plates are fixedly connected to the left and right sides of both sliding blocks. V-shaped rotating blocks are rotatably connected to the left and right sides of the bottom of both C-shaped connecting crossbars on the side closest to each other. A retracting rod is fixedly connected to the middle of the inner side of both sets of V-shaped rotating blocks. A V-shaped rotating block slider is fixedly connected to the top of both sets of V-shaped rotating blocks on the side away from the C-shaped connecting crossbars. The outer walls of both sets of V-shaped rotating block sliders are slidably connected to the inner walls of the two sets of arc-shaped sliding plates.

[0020] As a further aspect of the present invention: two rotating inclined rods are rotatably connected to the inner sides of both sets of expanding and contracting rods; rotating inclined rod bottom hinge blocks are rotatably connected to the bottom of multiple sets of rotating inclined rods; cleaning roller connecting plates are fixedly connected to the bottom of both sets of rotating inclined rod bottom hinge blocks; cleaning rollers are rotatably connected to the inner bottom of the two cleaning roller connecting plates; the bottom of the outer walls of the two cleaning rollers are in contact with both sides of the top of the photovoltaic panel; a central rotating rod is rotatably connected to the connection between the two sets of V-shaped rotating blocks and the expanding and contracting rods; a bidirectional hinge block is rotatably connected to the side of the two sets of central rotating rods away from the V-shaped rotating blocks; a bidirectional hinge block slider is fixedly connected to the middle of the outer side of the two bidirectional hinge blocks; and the outer walls of the two bidirectional hinge block sliders are slidably connected to the inner walls of the two sliding blocks.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention, by incorporating a base, a photovoltaic panel connecting frame, and a protective mechanism, achieves automated adjustment and efficient cleaning of the photovoltaic support system. This not only increases the light-receiving area and photoelectric conversion efficiency of the photovoltaic panels but also effectively ensures their cleanliness and power generation efficiency. Through intelligent control of the motor's forward and reverse rotation, the photovoltaic panel connecting frame and the protective mechanism move in coordination, allowing the photovoltaic panels to automatically adjust according to the sun's position, always maintaining the optimal light angle. Simultaneously, during movement, the protective mechanism's built-in cleaning components automatically clean the photovoltaic panel surface, preventing dust or debris accumulation and ensuring the photovoltaic panels' power generation efficiency. Furthermore, the reflector design not only improves sunlight reflection efficiency but also reduces wind resistance, minimizing the impact of wind on the photovoltaic support system and panels, further enhancing the overall stability and lifespan of the photovoltaic support system. This innovative design provides an efficient, intelligent, and reliable solution for the photovoltaic power generation field. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional separation structure of the main body of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the base of the present invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the control component of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the photovoltaic panel connecting frame of the present invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional separation structure of the photovoltaic panel connecting frame of the present invention;

[0029] Figure 7 This is a three-dimensional structural diagram of the protective mechanism of the present invention;

[0030] Figure 8 This is a schematic diagram of the three-dimensional separation structure of the protective mechanism of the present invention;

[0031] Figure 9 This is a three-dimensional structural diagram of the main body of the protective mechanism of the present invention;

[0032] Figure 10 This is a three-dimensional structural diagram of a single cleaning component of the present invention.

[0033] In the diagram: 1. Base; 11. Base plate; 12. Support side plate; 13. Control components; 131. Motor connection plate; 132. Motor; 133. Turntable; 134. Transmission track; 135. Second turntable; 136. Columnar transverse rotating rod; 137. Sleeve block; 138. Connecting plate connecting block; 139. Connecting plate; 1310. Second sleeve block; 1311. Side rotating rod; 1312. Side rotating rod slide groove; 14. Side plate; 15. Guide rod; 16. L-shaped connecting block; 17. Columnar short rod; 18. Rotary shaft connecting plate; 9. Rotating shaft; 110. Track; 111. Second guide rod connecting side plate; 112. Second guide rod; 113. Side plate; 114. Groove; 115. Second abutment plate; 116. Triangular abutment block; 2. Photovoltaic panel connecting frame; 21. Moving plate; 22. Track connecting block; 23. Inverted U-shaped slider; 24. Columnar lifting rod connecting block; 25. Columnar lifting rod; 26. Rotary wheel; 27. Inclined slide block; 28. Inclined slide; 29. ​​Columnar telescopic rod; 210. Second rotary wheel connecting block; 211. Second rotary wheel; 212. 1. Photovoltaic panel; 213. U-shaped block; 214. Columnar horizontal slide bar; 3. Protective mechanism; 31. Main body of the protective mechanism; 311. Protective base plate; 312. Inverted U-shaped slider of the protective base plate; 313. Second track connecting block; 314. Reflector connecting side plate; 315. Spring; 316. Reflector guide rod; 317. Guide rotating plate connecting rod; 318. Guide rotating plate; 319. Moving side block slider; 3110. Moving block; 3111. Reset block; 3112. Angle rotation rod columnar rotating block; 3113. Angle rotation 3114. Rod; 3115. Reflector; 3116. Columnar stop of protective mechanism; 32. Cleaning component; 321. C-shaped connecting crossbar; 322. Slide block; 323. Second spring; 324. Bidirectional hinge block slider; 325. Arc-shaped slide plate; 326. V-shaped rotating block; 327. V-shaped rotating block slider; 329. Retracting and expanding rod; 3210. Rotating inclined rod; 3211. Bottom hinge block of rotating inclined rod; 3212. Cleaning roller connecting plate; 3213. Cleaning roller; 3214. Shaft rotating rod; 3215. Bidirectional hinge block. Detailed Implementation

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figure 1-2 As shown, the present invention provides a photovoltaic bracket for roof mounting, including a base 1, a photovoltaic panel connecting frame 2 disposed on the inner side of the top of the base 1, and a protective mechanism 3 disposed on the top of the base 1.

[0036] like Figure 3-6As shown, the base 1 includes a base plate 11. Supporting side plates 12 are fixedly connected to the left and right sides of the bottom of the base plate 11. A control component 13 is fixedly connected to the bottom of the base plate 11. Side plates 14 are fixedly connected to the left and right sides of the top of the base plate 11. Guide rods 15 are fixedly connected to the top of each of the two side plates 14. L-shaped connecting blocks 16 are fixedly connected to the front and rear sides of each of the two guide rods 15. Short columnar rods 17 are fixedly connected to the inner top of each of the two sets of L-shaped connecting blocks 16. Rotary shaft connecting plates 18 are fixedly connected to the top of the front and rear sides of each of the two sets of rotating shaft connecting plates 18. Rotary shafts 19 are rotatably connected to the inner three sides of each of the two sets of rotating shafts 19. Tracks 110 are fitted onto the outer walls of each of the two sets of rotating shafts 19. The top of the base plate 11 is located on the left side of the inner side of each of the two side plates 14. Both right sides are fixedly connected to second guide rod connecting side plates 111. The tops of both second guide rod connecting side plates 111 are fixedly connected to second guide rods 112. On the left and right sides of the top of the second guide rod connecting side plates 111, on the inner sides of the two second guide rod connecting side plates 111, abutment plates 113 are fixedly connected. A groove 114 is formed in the center of the top of each of the two abutment plates 113. A second abutment plate 115 is fixedly connected to the center of the inner side of each of the two abutment plates 113. A triangular abutment block 116 is fixedly connected to the center of the top of the second abutment plate 115. The control component 13 includes a motor connecting plate 131. The left and right sides of the motor connecting plate 131 are fixedly connected to the rear sides of the inner sides of the two support side plates 12. A motor is fixedly connected to the center of the top of the motor connecting plate 131. The output end of the motor 132 is fixedly connected to a turntable 133. A transmission track 134 is fitted onto the outer wall of the turntable 133. A second turntable 135 is fitted onto the inner side of the transmission track 134 away from the turntable 133. A columnar horizontal rotating rod 136 is fixedly connected to the inner wall of the second turntable 135. Two sleeve blocks 137 are fitted onto the left and right sides of the outer wall of the columnar horizontal rotating rod 136. Connecting plate connecting blocks 138 are fixedly connected to the top of the left and right sets of sleeve blocks 137. Connecting plates 139 are fixedly connected to the top of the two connecting plate connecting blocks 138. The tops of the two connecting plates 139 are fixedly connected to the left and right sides of the bottom center of the base plate 11. A second sleeve block 1310 is fitted onto the outer side of the two columnar horizontal rotating rods 136 on the outer side of the two sets of sleeve blocks 137. The top of each second set of blocks 1310 is fixedly connected to the bottom outer side of the two connecting plates 139. The left and right ends of the columnar horizontal rotating rod 136 extend to the outer side of the two connecting plate connecting blocks 138 and are fixedly connected to side rotating rods 1311. The top of each of the two side rotating rods 1311 is provided with a side rotating rod groove 1312. The photovoltaic panel connecting frame 2 includes a movable plate 21. The middle of the left and right sides of the movable plate 21 is fixedly connected to a track connecting block 22. The front and rear sides of the left and right sides of the bottom of the movable plate 21 are fixedly connected to inverted U-shaped sliders 23. The inner walls of the bottom of the two sets of inverted U-shaped sliders 23 are slidably connected to the middle of the outer walls of the two second guide rods 112. The inner walls of the top of the two track connecting blocks 22 are fixedly connected to the middle of the bottom outer walls of the two tracks 110.A columnar lifting rod connecting block 24 is fixedly connected to the middle of both the front and rear sides of the movable plate 21. A columnar lifting rod 25 is slidably connected to the inner wall of each columnar lifting rod connecting block 24. A rotating wheel 26 is rotatably connected to the bottom inner wall of each columnar lifting rod 25. The bottom of the outer wall of each rotating wheel 26 is attached to the front and rear sides of the top of the second abutment plate 115. The top of each columnar lifting rod 25 extends to the top of each columnar lifting rod connecting block 24 and is fixedly connected to an inclined sliding groove block 27. An inclined sliding groove 28 is opened in the middle of each of the two inclined sliding groove blocks 27. Columnar telescopic rods 29 are slidably connected to the four sides of the middle of the movable plate 21. The bottom of each set of columnar telescopic rods 29 extends to the bottom of the movable plate 21. Each of the four sides of the movable plate 21 is fixedly connected to a second rotating wheel connecting block 210. The bottom inner walls of both sets of second rotating wheel connecting blocks 210 are rotatably connected to second rotating wheels 211. The bottom outer walls of both sets of second rotating wheels 211 are fitted into the bottom of the grooves 114 opened in the two side plates 113. The tops of both sets of columnar telescopic rods 29 extend to the top of the movable plate 21. Photovoltaic panels 212 are rotatably connected to each of the four sides of the movable plate 21. U-shaped blocks 213 are fixedly connected to the middle of the front and rear sides of the photovoltaic panel 212. Columnar horizontal sliding rods 214 are fixedly connected to the inner sides of both U-shaped blocks 213. The outer walls of both columnar horizontal sliding rods 214 are slidably connected to the inner walls of the inclined sliding grooves 28 opened in the two inclined sliding groove blocks 27.

[0037] In use, the motor 132 is first started to rotate forward and reverse according to the direction of the sun. If the sun is facing the front of the device, the motor 132 is started to rotate in reverse. The motor 132 drives the turntable 133 to rotate and drives the second turntable 135 to rotate through the transmission track 134. The columnar horizontal rotating rod 136 rotates, which in turn drives the side rotating rods 1311 at both ends to rotate. At this time, since the motor 132 is rotating in reverse, it drives the two side rotating rods 1311 to rotate to the rear. This drives the protective mechanism 3 to move to the rear on the top of the base 1 through the side rotating rod slide groove 1312, so that it no longer blocks and protects the photovoltaic panel connecting frame 2.

[0038] Meanwhile, when the protective mechanism 3 moves backward, it causes the tracks 110 to reverse. The reverse rotation of the two tracks 110 causes the two track connecting blocks 22 at the bottom center to move forward. The movement of the two track connecting blocks 22 forward causes the moving plate 21 to slide forward on the outer wall of the two second guide rods 112. At this time, since the photovoltaic panel 212 is slidably connected to the inner wall of the inclined groove 28 opened by the inclined groove block 27 through the columnar transverse sliding rod 214 on the inner side of the U-shaped block 213, and the inclination angle of the inclined groove 28 is opposite to the moving direction of the moving plate 21, when the moving plate 21 moves forward, it will cause the two inclined groove blocks 27 to move forward. Since the moving plate 21 moves forward, the rotating wheel 26 at the bottom of the columnar lifting rod 25 on the rear side of the moving plate 21 slides along the track to the top center of the triangular abutment block 116 on the top of the second abutment plate 115, thereby causing the rear columnar lifting rod 21 to slide forward. 5. Push the inclined slide block 27 to the top, and then the inclined slide block 27 on the rear side drives the columnar horizontal slide bar 214 on the rear side of the photovoltaic panel 212 to slide upward on the inner wall of the inclined slide bar 28 through the inclined slide bar 28. The columnar horizontal slide bar 214 slides upward and drives the photovoltaic panel 212 to flip upward. When the photovoltaic panel 212 flips and tilts to the direction of sunlight, the second rotating wheel 211 on the four sides of the bottom of the photovoltaic panel 212 slides forward along the grooves 114 opened by the two side plates 113. As the moving plate 21 slides forward and slides out of the grooves 114 opened by the side plates 113, at this time, the two sets of columnar telescopic rods 29 will also push the photovoltaic panel 212 to move upward along the top of the side plates 113, so that the surface of the photovoltaic panel 212 is higher than the top of the base 1, thereby facilitating the photovoltaic panel 212 to better receive sunlight for power generation and improving the power generation efficiency of the photovoltaic panel 212.

[0039] When the sun is facing the rear of the device, the motor 132 is started to rotate forward. The forward rotation of the motor 132 causes the above-mentioned structures to move in the opposite direction until the protective mechanism 3 is on the front side of the top of the base 1, the photovoltaic panel connecting frame 2 is on the rear side of the inner side of the base 1, and the tilt angle of the photovoltaic panel 212 is opposite to the tilt angle on the front side.

[0040] like Figure 7-10As shown, the protective mechanism 3 includes a protective mechanism body 31. Cleaning components 32 are fixedly connected to both the front and rear sides of the bottom center of the protective mechanism body 31. The protective mechanism body 31 includes a protective base plate 311. A reflector plate 3114 is provided on the top of the protective base plate 311. Second track connecting blocks 313 are fixedly connected to both the left and right sides of the bottom center of the protective base plate 311. The bottoms of the two sets of U-shaped sliders 312 of the left and right protective base plates are slidably connected to the middle of the outer wall of the two guide rods 15. The bottom of the protective base plate 311 is aligned with the top of the moving plate 21. The bottom inner walls of the two second track connecting blocks 313 are fixedly connected to the outer wall of the top center of the two tracks 110. Reflector plates are fixedly connected to both the left and right sides of the top of the protective base plate 311. Side plate 314, the top and bottom of the inner side of the two reflector connecting side plate 314 are fixedly connected to reflector guide rods 316. The inner side of the two reflector connecting side plate 314 is hollowed out on both sides of the two reflector guide rods 316. Springs 315 are fixedly connected to the front and rear sides of the inner wall of the two reflector connecting side plate 314. The middle of the top of the inner side of the two reflector connecting side plate 314 is rotatably connected to guide rotating plate connecting rods 317. The inner ends of the two guide rotating plate connecting rods 317 are fixedly connected to guide rotating plates 318. The middle of the left and right sides of the protective base plate 311 are fixedly connected to the columnar abutments of the protective mechanism 3115. The outer walls of the two columnar abutments of the protective mechanism 3115 are slidably connected to the side rotating rod slides opened by the two side rotating rods 1311. On the inner wall of the groove 1312, a reset block 3111 is slidably connected to the inner center of the two reflector connecting side plates 314. A moving block 3110 is fixedly connected to the inner side of each of the two reset blocks 3111. Moving side block sliders 319 are fixedly connected to the four outer sides of each of the two moving blocks 3110. The outer sides of the left and right sets of moving side block sliders 319 are slidably connected to the outer walls of the left and right sets of reflector guide rods 316. Angle rotating rod columnar rotating blocks 3112 are rotatably connected to the inner center of each of the two moving blocks 3110. Angle rotating rods 3113 are fixedly connected to the inner ends of each of the two angle rotating rod columnar rotating blocks 3112. The outer walls of the two angle rotating rods 3113 are slidably connected to the inner sides of the two guide rotating plates 318. The top of component 13 is fixedly connected to the left and right sides of the bottom center of the reflector plate 3114. Both cleaning components 32 include C-shaped connecting crossbars 321. Sliding blocks 322 are fixedly connected to the outer center of the two C-shaped connecting crossbars 321. Second springs 323 are fixedly connected to the inner walls of the two sliding blocks 322. Arc-shaped sliding plates 325 are fixedly connected to the left and right sides of the two sliding blocks 322. V-shaped rotating blocks 326 are rotatably connected to the left and right sides of the bottom of the two C-shaped connecting crossbars 321 on the side closest to each other. Expanding and contracting rods 329 are fixedly connected to the inner center of the two sets of V-shaped rotating blocks 326. V-shaped rotating block sliders 327 are fixedly connected to the top of the two sets of V-shaped rotating blocks 326 on the side away from the C-shaped connecting crossbars 321.The outer walls of the two sets of V-shaped rotating block sliders 327 are slidably connected to the inner walls of the two sets of arc-shaped sliding groove plates 325. The inner sides of the two sets of expanding and contracting rods 329 are rotatably connected to two rotating inclined rods 3210. The bottoms of the multiple sets of rotating inclined rods 3210 are rotatably connected to rotating inclined rod bottom hinge blocks 3211. The bottoms of the two sets of rotating inclined rod bottom hinge blocks 3211 are fixedly connected to cleaning roller connecting plates 3212. The inner sides of the bottoms of the two cleaning roller connecting plates 3212 are rotatably connected to cleaning rollers 3213. The two cleaning rollers 3213... The bottom of the outer wall of 213 is attached to both sides of the top of the photovoltaic panel 212. A central rotating rod 3214 is rotatably connected to the connection points of the two sets of V-shaped rotating blocks 326 and the expansion / retraction rod 329. A bidirectional hinge block 3215 is rotatably connected to the side of each set of central rotating rods 3214 away from the V-shaped rotating block 326. A bidirectional hinge block slider 324 is fixedly connected to the middle of the outer side of each of the two bidirectional hinge block 3215. The outer walls of the two bidirectional hinge block sliders 324 are slidably connected to the inner walls of the two sliding blocks 322.

[0041] When the protective mechanism 3 moves as a whole, the two second track connecting blocks 313 of the protective base plate 311 pull the two tracks 110 to move, thereby driving the photovoltaic panel connecting frame 2 to move in the opposite direction. When the protective mechanism 3 moves as a whole, the outer walls of the two bottom cleaning rollers 3213 are in contact with the surface of the photovoltaic panel 212. Thus, when the protective mechanism 3 moves as a whole, the cleaning rollers 3213 slide on the surface of the photovoltaic panel 212 to clean the surface of the photovoltaic panel 212, preventing the accumulation of dust or debris on the surface of the photovoltaic panel 212 from affecting the power generation efficiency. When the photovoltaic panel 212 flips during the movement, the cleaning rollers 3213 can be connected to the cleaning roller connecting block 3213 to move. The rotation of plate 3212 and the bottom hinge block 3211 of the rotating inclined rod ensures that the cleaning roller 3213 is always in contact with the surface of the photovoltaic panel 212, and the position of the cleaning roller 3213 is adjusted according to the rotation angle of the photovoltaic panel 212. At the same time, the V-shaped rotating block 326 and the expansion rod 329 cooperate through the axial rotating rod 3214 and the bidirectional hinge block 3215, so that when the cleaning roller 3213 moves on the surface of the photovoltaic panel 212, it can adaptively adjust according to the curvature of the photovoltaic panel 212, and maintain the tight contact between the cleaning roller 3213 and the surface of the photovoltaic panel 212. In addition, the second spring 323 can make the cleaning roller 3213 produce a certain elastic deformation when subjected to pressure.

[0042] During the movement of the protective mechanism 3, the moving blocks 3110 inside the two reflector connecting side plates 314 are pushed by the columnar short rods 17. When the protective mechanism 3 moves backward, the two moving blocks 3110 are pushed by the front ends of the two columnar short rods 17, causing the two moving blocks 3110 to move forward inside the two reflector connecting side plates 314. The forward movement of the two moving blocks 3110 causes the two angle rotating rods 3113 to slide on the inner walls of the two guide rotating plates 318, causing the two guide rotating plates 318 to rotate backward, and the two angle rotating rods 3113 follow the two guide rotating plates. 318 rotates, causing the reflector 3114 to flip backward, thus forming a V-shaped structure between the bottom of the reflector 3114 and the top of the photovoltaic panel 212. When sunlight shines on the reflector 3114, the reflector 3114 can reflect the sunlight, allowing the sunlight to shine on the photovoltaic panel 212 over a larger area, increasing the light-receiving area of ​​the photovoltaic panel 212, and thus improving the photoelectric conversion efficiency of the photovoltaic panel 212. At the same time, the V-shaped structure can also reduce the obstruction of the reflector 3114 to the wind, reduce wind resistance, and reduce the impact of wind on the photovoltaic support and the photovoltaic panel 212.

[0043] When the protective mechanism 3 moves forward, the above structure moves in the opposite direction. At this time, the two moving blocks 3110 are pushed by the rear ends of the two columnar short rods 17 on the front side, causing the two moving blocks 3110 to move backward inside the two reflector connecting side plates 314. The backward movement of the two moving blocks 3110 drives the two angle rotating rods 3113 to slide on the inner wall of the two guide rotating plates 318 and make the two guide rotating plates 318 rotate forward. The two angle rotating rods 3113 rotate with the two guide rotating plates 318, thereby causing the reflector 3114 to flip forward. In addition, the spring 315 can provide a restoring force after the moving blocks 3110 move, so that when the columnar short rods 17 no longer push the moving blocks 3110, the moving blocks 3110 can be reset under the action of the spring 315, thereby driving the reflector 3114 to reset.

[0044] Working principle of this invention: The motor 132 is started to rotate in both directions according to the direction of the sun. If the sun is facing the front of the device, the motor 132 is started to rotate in reverse. The motor 132 drives the turntable 133 to rotate, and through the transmission track 134, it drives the second turntable 135 to rotate, which in turn drives the columnar horizontal rotating rod 136 to rotate. The rotation of the columnar horizontal rotating rod 136 in turn drives the rotation of the side rotating rods 1311 at both ends. At this time, since the motor 132 is rotating in reverse, it drives the two side rotating rods 1311 to rotate to the rear. This causes the columnar abutment blocks 3115 of the protective mechanism fixed on the left and right sides of the protective base plate 311 to move to the rear along with the rotation of the side rotating rods 1311, so that the entire protective mechanism 3 moves to the rear. At this time, the two second track connecting blocks 313 of the protective base plate 311 pull the two tracks 110 to move. When the protective mechanism 3 moves backward as a whole, it causes the tracks 110 to reverse. The reverse rotation of the two tracks 110 causes the two track connecting blocks 22 in the middle of the bottom to move forward. The movement of the two track connecting blocks 22 forward causes the moving plate 21 to slide forward on the outer wall of the two second guide rods 112. At this time, since the photovoltaic panel 212 is slidably connected to the inner wall of the inclined slide groove 28 opened by the inclined slide groove block 27 through the columnar transverse slide rod 214 on the inner side of the U-shaped block 213, and the inclination angle of the inclined slide groove 28 is opposite to the moving direction of the moving plate 21, when the moving plate 21 moves forward, it will cause the two inclined slide groove blocks 27 to move forward. The moving plate 21 moves forward, so the rotating wheel 26 at the bottom of the columnar lifting rod 25 on the rear side of the moving plate 21 slides along the track to the top center of the triangular block 116 on the top of the second abutment plate 115. This causes the columnar lifting rod 25 to push the inclined sliding block 27 to move upward. Then, the inclined sliding block 27 drives the columnar horizontal sliding rod 214 on the rear side of the photovoltaic panel 212 to slide upward on the inner wall of the inclined sliding groove 28 through the inclined sliding groove 28. The columnar horizontal sliding rod 214 slides upward, thereby causing the photovoltaic panel 212 to flip upward. When the photovoltaic panel 212 flips and tilts to the direction of sunlight, the second rotating wheel 211 on the four sides of the bottom of the photovoltaic panel 212 slides forward along the grooves 114 opened on the two abutment plates 113. As the moving plate 21 moves forward, the second rotating wheel 211 slides along the grooves 114 opened on the two abutment plates 113. When the protective mechanism 3 slides forward out of the groove 114 in the side plate 113, the two sets of columnar telescopic rods 29 will also push the photovoltaic panel 212 upward along the top of the side plate 113, so that the surface of the photovoltaic panel 212 is higher than the top of the base 1. This facilitates the photovoltaic panel 212 to better receive sunlight for power generation, improving the power generation efficiency of the photovoltaic panel 212. When the protective mechanism 3 moves as a whole, the outer walls of the two bottom cleaning rollers 3213 are in contact with the surface of the photovoltaic panel 212. Thus, when the protective mechanism 3 moves as a whole, it will drive the cleaning rollers 3213 to slide on the surface of the photovoltaic panel 212, cleaning the surface of the photovoltaic panel 212 and preventing the accumulation of dust or debris on the surface of the photovoltaic panel 212 from affecting the power generation efficiency.When the photovoltaic panel 212 flips during its movement, the cleaning roller 3213, through the rotation of the cleaning roller connecting plate 3212 and the rotating inclined rod bottom hinge block 3211, ensures that the cleaning roller 3213 remains in contact with the surface of the photovoltaic panel 212. The position of the cleaning roller 3213 is adjusted according to the flipping angle of the photovoltaic panel 212. Simultaneously, the V-shaped rotating block 326 and the retracting rod 329, through the cooperation of the axial rotating rod 3214 and the bidirectional hinge block 3215, allow the cleaning roller 3213 to adaptively adjust according to the curvature of the photovoltaic panel 212 as it moves across the surface, maintaining a tight fit between the cleaning roller 3213 and the surface of the photovoltaic panel 212. Furthermore, the second spring 323 ensures that the cleaning roller 3213 remains in close contact with the surface of the photovoltaic panel 212. 13. Under pressure, a certain elastic deformation occurs. During the movement of the protective mechanism 3, the moving blocks 3110 on the inner side of the two reflector connecting side plates 314 are pushed by the columnar short rods 17. When the protective mechanism 3 moves backward, the two moving blocks 3110 are pushed by the front ends of the two columnar short rods 17 on the rear side, causing the two moving blocks 3110 to move forward on the inner side of the two reflector connecting side plates 314. The forward movement of the two moving blocks 3110 causes the two angle rotating rods 3113 to slide on the inner wall of the two guide rotating plates 318 and cause the two guide rotating plates 318 to rotate backward. The two angle rotating rods 3113 rotate with the two guide rotating plates 318, thereby causing the reflector 3114 to move backward. The reflector 3114 is flipped so that its bottom and the top of the photovoltaic panel 212 form a V-shape. When sunlight shines on the reflector 3114, it reflects the sunlight, allowing more sunlight to reach the photovoltaic panel 212, increasing its illumination area and thus improving its photoelectric conversion efficiency. The V-shape also reduces wind resistance and the impact of wind on the photovoltaic support and panel 212. When the sun is facing the rear of the device, the motor 132 rotates forward, causing the aforementioned structures to move in the opposite direction until the protective mechanism 3 is on the front side of the top of the base 1. The panel connecting frame 2 is located on the rear side inside the base 1, and the tilt angle of the photovoltaic panel 212 is opposite to that on the front side. When the protective mechanism 3 moves forward, the above structure moves in the opposite direction. At this time, the two moving blocks 3110 are pushed by the rear ends of the two columnar short rods 17 on the front side, causing the two moving blocks 3110 to move backward inside the two reflector connecting side plates 314. The backward movement of the two moving blocks 3110 drives the two angle rotating rods 3113 to slide on the inner wall of the two guide rotating plates 318 and cause the two guide rotating plates 318 to rotate forward. The two angle rotating rods 3113 rotate with the two guide rotating plates 318, thereby causing the reflector 3114 to flip forward. When photovoltaic power generation is not required,At this time, the photovoltaic panel connecting frame 2 and the protective mechanism 3 are reset to their original positions on the top and inside of the base 1. The protective mechanism 3 then shields the photovoltaic panel connecting frame 2 from the top, preventing dust or debris from falling onto the surface of the photovoltaic panel 212, causing contamination and affecting its power generation efficiency and lifespan.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic bracket for roof mounting, comprising a base (1), characterized in that: A photovoltaic panel connecting frame (2) is provided on the inner side of the top of the base (1), and a protective mechanism (3) is provided on the top of the base (1). The base (1) includes a base plate (11), and support side plates (12) are fixedly connected to the left and right sides of the bottom of the base plate (11). A control component (13) is fixedly connected to the bottom of the base plate (11). The photovoltaic panel connecting frame (2) includes a movable plate (21), and a track connecting block (22) is fixedly connected to the middle of both the left and right sides of the movable plate (21). The protective mechanism (3) includes a protective mechanism body (31), and cleaning components (32) are fixedly connected to the front and rear sides of the bottom center of the protective mechanism body (31). The main body (31) of the protective mechanism includes a protective base plate (311), and a reflector plate (3114) is provided on the top of the protective base plate (311). Side plates (14) are fixedly connected to the top of the bottom plate (11) on both the left and right sides. Guide rods (15) are fixedly connected to the top of the two side plates (14). L-shaped connecting blocks (16) are fixedly connected to the front and rear sides of the two guide rods (15). Columnar short rods (17) are fixedly connected to the top of the inner side of the two sets of L-shaped connecting blocks (16). Rotary shaft connecting plates (18) are fixedly connected to the top of the front and rear sides of the two side plates (14). Rotary shafts (19) are rotatably connected to the three inner sides of the two sets of rotating shaft connecting plates (18). Tracks (110) are fitted on the outer walls of the two sets of rotating shafts (19). The control component (13) includes a motor connecting plate (131). The left and right sides of the motor connecting plate (131) are fixedly connected to the rear sides of the inner sides of two support side plates (12). A motor (132) is fixedly connected to the top center of the motor connecting plate (131). A turntable (133) is fixedly connected to the output end of the motor (132). A transmission track (134) is fitted on the outer wall of the turntable (133). A second rotating track is fitted on the inner side of the transmission track (134) away from the turntable (133). The inner wall of the second turntable (135) is fixedly connected to a columnar horizontal rotating rod (136). Two sleeve blocks (137) are fitted on the left and right sides of the outer wall of the columnar horizontal rotating rod (136). The top of the left and right sleeve blocks (137) is fixedly connected to a connecting plate connecting block (138). The top of the two connecting plate connecting blocks (138) is fixedly connected to a connecting plate (139). The top of the two connecting plates (139) is fixedly connected to the left and right sides of the bottom center of the base plate (11). The outer walls of the two columnar horizontal rotating rods (136) are fitted with second sleeve blocks (1310) on one side of the two sets of sleeve blocks (137). The tops of the two second sleeve blocks (1310) are fixedly connected to the bottom outer side of the two connecting plates (139). The left and right ends of the columnar horizontal rotating rods (136) extend to the outer side of the two connecting plate connecting blocks (138) and are fixedly connected with side rotating rods (1311). The tops of the two side rotating rods (1311) are provided with side rotating rod grooves (1312). The protective base plate (311) has two second track connecting blocks (313) fixedly connected to the left and right sides of the bottom center. The bottoms of the two sets of U-shaped sliders (312) of the protective base plate are slidably connected to the middle of the outer wall of the two guide rods (15). The bottom of the protective base plate (311) is aligned with the top of the moving plate (21). The bottom inner walls of the two second track connecting blocks (313) are fixedly connected to the outer wall of the top center of the two tracks (110). The left and right sides of the top of the protective base plate (311) are fixedly connected to reflector connecting side plates (314). The top and bottom of the inner sides of the two reflector connecting side plates (314) are fixedly connected to reflector guide rods (316). The connecting side plate (314) has a hollow design on the inner side of the two sets of reflector guide rods (316). Springs (315) are fixedly connected to the front and rear sides of the inner wall of the two reflector connecting side plates (314). Guide rotating plate connecting rods (317) are rotatably connected to the middle of the top of the inner side of the two reflector connecting side plates (314). Guide rotating plates (318) are fixedly connected to the inner ends of the two guide rotating plate connecting rods (317). Protective mechanism columnar blocks (3115) are fixedly connected to the middle of the left and right sides of the protective base plate (311). The outer walls of the two protective mechanism columnar blocks (3115) are slidably connected to the inner wall of the side rotating rod groove (1312) opened by the two side rotating rods (1311).

2. A photovoltaic bracket for roof mounting according to claim 1, characterized in that: The top of the base plate (11) is fixedly connected to the left and right sides of the inner side of the two side plates (14) with second guide rod connecting side plates (111). The top of the two second guide rod connecting side plates (111) is fixedly connected to the second guide rod (112). The top of the second guide rod connecting side plates (111) is fixedly connected to the left and right sides of the inner side of the two second guide rod connecting side plates (111). The top center of the two abutting side plates (113) is provided with a groove (114). The inner center of the two abutting side plates (113) is fixedly connected to the second abutting plate (115). The top center of the second abutting plate (115) is fixedly connected to the triangular abutting block (116).

3. A photovoltaic bracket for roof mounting according to claim 2, characterized in that: The bottom left and right sides of the movable plate (21) are fixedly connected to the front and back sides of the inverted U-shaped sliders (23). The inner walls of the bottom of the two sets of inverted U-shaped sliders (23) are slidably connected to the middle of the outer walls of the two second guide rods (112). The top inner walls of the two track connecting blocks (22) are fixedly connected to the middle of the bottom outer walls of the two tracks (110). The front and back sides of the movable plate (21) are fixedly connected to the middle of the columnar lifting rod connecting blocks (24). The two columnar lifting rods are connected to the middle of the front and back sides of the movable plate (21). The inner wall of the connecting block (24) is slidably connected with columnar lifting rods (25). The bottom inner wall of each of the two columnar lifting rods (25) is rotatably connected with a wheel (26). The bottom of the outer wall of each of the two wheels (26) is attached to the front and rear sides of the top of the second abutment plate (115). The top of each of the two columnar lifting rods (25) extends to the top of the two columnar lifting rod connecting blocks (24) and is fixedly connected with an inclined sliding groove block (27). An inclined sliding groove is opened in the middle of each of the two inclined sliding groove blocks (27). (28) The four sides of the middle part of the movable plate (21) are slidably connected with columnar telescopic rods (29). The bottom of the two sets of columnar telescopic rods (29) extends to the bottom four sides of the movable plate (21) and is fixedly connected with the second rotating wheel connecting block (210). The bottom inner wall of the two sets of second rotating wheel connecting blocks (210) is rotatably connected with the second rotating wheel (211). The bottom of the outer wall of the left and right sets of second rotating wheels (211) is attached to the groove (1) opened by the two side plates (113). 14) At the bottom of the inner side, the tops of the two sets of columnar telescopic rods (29) extend to the top of the movable plate (21). Photovoltaic panels (212) are rotatably connected to the four sides of the photovoltaic panel (212). U-shaped blocks (213) are fixedly connected to the middle of the front and rear sides of the photovoltaic panel (212). Columnar horizontal slide rods (214) are fixedly connected to the inner sides of the two U-shaped blocks (213). The outer walls of the two columnar horizontal slide rods (214) are slidably connected to the inner walls of the inclined slide grooves (28) opened by the two inclined slide groove blocks (27).

4. A photovoltaic bracket for roof mounting according to claim 1, characterized in that: A reset block (3111) is slidably connected to the inner center of each of the two reflector connecting side plates (314). A moving block (3110) is fixedly connected to the inner side of each of the two reset blocks (3111). A moving side block slider (319) is fixedly connected to the four outer sides of each of the two moving blocks (3110). The outer sides of the two sets of moving side block sliders (319) are slidably connected to the outer walls of the two sets of reflector guide rods (316). Angle rotating rod columnar rotating block (3112) is rotatably connected to the inner center of each of the two moving blocks (3110). Angle rotating rod (3113) is fixedly connected to the inner end of each of the two angle rotating rod columnar rotating blocks (3112). The outer walls of each of the two angle rotating rods (3113) are slidably connected to the inner side of the two guide rotating plates (318). The tops of each of the two angle rotating rods (3113) are fixedly connected to the left and right sides of the bottom center of the reflector (3114).

5. A photovoltaic bracket for roof mounting according to claim 1, characterized in that: Both cleaning components (32) include C-shaped connecting crossbars (321). A sliding block (322) is fixedly connected to the middle of the outer side of each of the two C-shaped connecting crossbars (321). A second spring (323) is fixedly connected to the inner wall of each of the two sliding blocks (322). An arc-shaped sliding plate (325) is fixedly connected to the left and right sides of each of the two sliding blocks (322). A V-shaped rotating block (326) is rotatably connected to the left and right sides of the bottom of each of the two C-shaped connecting crossbars (321) on one side closer to each other. A retracting rod (329) is fixedly connected to the middle of the inner side of each of the two sets of V-shaped rotating blocks (326). A V-shaped rotating block slider (327) is fixedly connected to the top of each of the two sets of V-shaped rotating blocks (326) on the side away from the C-shaped connecting crossbars (321). The outer walls of the two sets of V-shaped rotating block sliders (327) are slidably connected to the inner walls of the two sets of arc-shaped sliding plates (325).

6. A photovoltaic bracket for roof mounting according to claim 5, characterized in that: Two rotating inclined rods (3210) are rotatably connected to the inner side of each of the two sets of expanding and contracting rods (329). Rotating inclined rod bottom hinge blocks (3211) are rotatably connected to the bottom of each of the multiple sets of rotating inclined rods (3210). Cleaning roller connecting plates (3212) are fixedly connected to the bottom of each of the two sets of rotating inclined rod bottom hinge blocks (3211). Cleaning rollers (3213) are rotatably connected to the inner side of the bottom of each of the two cleaning roller connecting plates (3212). The bottom of the outer wall of each of the two cleaning rollers (3213) is connected to the photovoltaic panel (212). The top two sides are attached together, and the connection between the two sets of V-shaped rotating blocks (326) and the expansion rod (329) is rotatably connected to the central rotating rod (3214). The two sets of central rotating rods (3214) are rotatably connected to the side away from the V-shaped rotating block (326) with a bidirectional hinge block (3215). The outer middle of the two bidirectional hinge blocks (3215) is fixedly connected to the bidirectional hinge block slider (324). The outer walls of the two bidirectional hinge block sliders (324) are slidably connected to the inner walls of the two sliding blocks (322).

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