A foldable shielded photovoltaic device

Abstract

The application discloses a kind of folding protection type photovoltaic devices in photovoltaic equipment field, including frame and two load plates rotationally installed in frame both sides, still including two folding parts, mobile battery part, multiple spray parts and two extrusion assemblies, two folding parts are rotationally connected in load plate side, the folding part displacement is to drive load plate rotation, lifting rod is fixedly installed in folding part bottom, mobile battery part is set in frame inside, lifting rod one end is connected in mobile battery part bottom, mobile battery part bottom can be received in frame inside and drive lifting rod displacement, spray part is set in frame top, the spray part lower end is located in frame inside, two extrusion assemblies are respectively set in the both sides of frame, the load plate side is fixedly installed with the resistance rod for pushing extrusion assembly displacement displacement, the present application solves the problem that traditional photovoltaic device is poor in protection effect after folding, cleaning efficiency is low, cleaning power consumption is high.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic equipment technology, and in particular to a foldable protective photovoltaic device. Background Technology

[0002] As a core device for clean energy utilization, photovoltaic devices are widely used in outdoor camping, field operations, and home backup power supply scenarios. Their power generation efficiency and service life directly depend on the integrity and surface cleanliness of the photovoltaic panels.

[0003] In outdoor environments, photovoltaic panels are susceptible to wind, sun, rain, external impacts, and dust accumulation, leading to panel wear and stain adhesion. This not only reduces power generation efficiency but also shortens the lifespan of the equipment. Traditional foldable photovoltaic devices often use folding structures primarily to reduce storage volume, making it impossible to remove dust from the photovoltaic panels after folding. Long-term dust accumulation exacerbates panel wear and affects power generation efficiency. While some photovoltaic devices can automatically remove dust, most rely on electrically powered vacuum cleaners or sweepers, which consume a lot of power and require regular maintenance, making them inconvenient to use. Therefore, those skilled in the art have provided a foldable protective photovoltaic device to address the problems mentioned in the background section. Summary of the Invention

[0004] The purpose of this invention is to provide a foldable protective photovoltaic device to solve the problem of inconvenient cleaning of photovoltaic panels after they are folded in traditional photovoltaic devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a foldable protective photovoltaic device, comprising a frame and two support plates rotatably mounted on both sides of the frame, and further comprising: Two folding sections are rotatably connected to one side of the support plate. The displacement of the folding sections causes the support plate to rotate. A lifting rod is fixedly installed at the bottom of the folding sections. A movable battery unit is located inside the frame. One end of the lifting rod is connected to the bottom of the movable battery unit. The bottom of the movable battery unit can be retracted into the frame and drive the lifting rod to move. Multiple spray nozzles are disposed on the top of the frame, with the lower ends of the spray nozzles located inside the frame. Two extrusion components are respectively arranged on both sides of the frame. A contact rod for pushing the extrusion components to move is fixedly installed on one side of the support plate. The extrusion components extrude the blowing part to make it blow the medium to remove dust from the photovoltaic modules carried by the support plate.

[0006] As a further description of the above-mentioned foldable protective photovoltaic device: The fold includes: A rotating rod is rotatably mounted on the side of the bearing plate. Two rotating rods on the same side are rotatably connected to a lifting block. The upper end of the lifting rod is welded and fixed to the bottom of the lifting block.

[0007] As a further description of the above-mentioned foldable protective photovoltaic device: The bottom of the frame has a through hole for the movable battery unit to enter and exit the frame. The movable battery unit includes: An electric push rod is fixedly installed at the top of the inner side of the frame, and a connecting block is fixedly installed at the output end of the electric push rod. Two batteries, which are lithium batteries, are symmetrically fixed at both ends of the connecting block.

[0008] As a further description of the above-mentioned foldable protective photovoltaic device: A cover is fixedly installed on the top surface of the battery. The cover is triangular prism-shaped and is used to prevent dust from accumulating on the top surface of the cover.

[0009] As a further description of the above-mentioned foldable protective photovoltaic device: The spraying unit includes: An airbag is fixedly installed on the top surface of the frame, and an air inlet is fixedly installed on the upper end of the airbag. Two exhaust pipes are symmetrically fixedly installed at the bottom of the airbag. The exhaust pipes pass through the top of the frame, and the lower end of the exhaust pipes is fixedly connected to a blower head for blowing on the photovoltaic modules supported on the top surface of the support plate.

[0010] As a further description of the above-mentioned foldable protective photovoltaic device: The air inlet is specifically a one-way air inlet for inputting air into the airbag, and the exhaust pipe is connected to the blow nozzle through a one-way air valve.

[0011] As a further description of the above-mentioned foldable protective photovoltaic device: A contact rod for pushing the extrusion assembly is fixedly installed on one side of the support plate. The extrusion assembly includes: Two mounting plates are fixedly installed on both sides of the frame. A telescopic rod is fixedly installed on the inner side of the mounting plate. An L-shaped moving block is fixedly installed at one end of the telescopic rod. An elastic element is provided between the L-shaped moving block and the mounting plate. A sliding groove is provided on the top surface of the L-shaped moving block. A slider is slidably installed inside a slide groove. A second spring is fixedly installed on one side of the slider. The end of the second spring away from the slider is fixedly installed inside the slide groove. An extrusion plate is fixedly installed on the top surface of the slider.

[0012] As a further description of the above-mentioned foldable protective photovoltaic device: The two extrusion plates are positioned opposite each other, and the jetting section passes between the two extrusion plates.

[0013] As a further description of the above-mentioned foldable protective photovoltaic device: The elastic element is specifically a first spring, one end of which is fixedly installed on one side of the mounting plate, and the other end of which is fixedly installed on one side of the L-shaped moving block.

[0014] As a further description of the above-mentioned foldable protective photovoltaic device: A photovoltaic panel is fixedly installed on the top surface of the support plate, and a protective plate is fixedly installed on the bottom surface of the support plate. The protective plate has an inclined surface on the side away from the support plate to guide the water flow.

[0015] In summary, due to the adoption of the above-mentioned foldable protective photovoltaic device, the beneficial effects of the present invention are: The movement of the mobile battery unit into the inner side of the frame causes the lifting rod to shift, which in turn drives the folding part to rotate along with the two side support plates. This ultimately causes the support plates to contact the sides of the frame, forming a closed protective space that encloses the photovoltaic modules and the mobile battery unit. This effectively isolates the photovoltaic modules from external adverse factors such as rain, snow, dust, and collisions, reducing component wear and extending the overall lifespan of the device. Its excellent protective performance effectively protects both the photovoltaic modules and the mobile battery unit. During the rotation of the support plates to achieve the protective closure, the contact rod on the support plates simultaneously pushes the extrusion component to shift. Through the extrusion component's squeezing action on the blowing unit, the blowing unit sprays a medium that precisely removes dust from the photovoltaic modules supported on the support plates. This design organically combines protective folding actions with dust removal actions, eliminating the need for an additional dust removal drive mechanism. This simplifies the device structure, reduces manufacturing costs, and promptly removes floating dust from the photovoltaic module surface, preventing dust accumulation from affecting the photovoltaic module's power generation efficiency and ensuring stable power generation performance. Dust removal and protective actions are performed simultaneously. The movable battery unit can be flexibly stored inside the frame, and the folding part and the support plate can be folded together to fit the frame. Compared to traditional fixed photovoltaic devices, this device occupies less space when not in operation, making it easier to transport and store. At the same time, the smooth linkage and tight connection of each component ensure the stable and reliable implementation of protective and dust removal functions, improving the space utilization of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the present invention; Figure 3 This is a schematic diagram of the extrusion assembly of the present invention; Figure 4 This is an enlarged schematic diagram of the structure at point A in this invention; Figure 5 This is a schematic diagram of the spray section structure of the present invention; Figure 6 This is a schematic diagram of the mobile battery section structure of the present invention; Figure 7 This is a schematic diagram of the support plate structure of the present invention.

[0017] Legend: 10. Frame; 11. Load-bearing plate; 12. Photovoltaic panel; 13. Protective plate; 20. Folding section; 201. Rotating rod; 202. Lifting block; 21. Lifting rod; 30. Mobile battery unit; 301. Electric push rod; 302. Connecting block; 303. Battery; 304. Cover; 31. Perforation; 40. Spray nozzle; 401. Airbag; 402. Air inlet; 403. Exhaust pipe; 404. Spray head; 50. Extrusion assembly; 501. Mounting plate; 502. Telescopic rod; 503. L-shaped moving block; 504. First spring; 505. Slide groove; 506. Slider; 507. Second spring; 508. Extrusion plate; 51. Abutment rod. Detailed Implementation

[0018] The following will describe in detail, with reference to the accompanying drawings of the embodiments of the present invention, a foldable protective photovoltaic device according to the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1-7 As shown, the present invention provides a foldable protective photovoltaic device, including a frame 10 and two support plates 11 rotatably mounted on both sides of the frame 10, and also includes two folding parts 20, a movable battery part 30, multiple blowing parts 40 and two extrusion components 50, etc. The two folding parts 20 are rotatably connected to one side of the support plate 11. The displacement of the folding parts 20 drives the support plate 11 to rotate, thereby realizing the unfolding and storage of the photovoltaic module. A lifting rod 21 is fixedly installed at the bottom of the folding parts 20. The movable battery part 30 is located inside the frame 10. One end of the lifting rod 21 is connected to the bottom of the movable battery part 30. The bottom of the movable battery part 30 can be retracted into the frame 10 and drive the lifting rod 21 to move, realizing the linkage action of the folding parts 20. The blowing section 40 is located on the top of the frame 10, with its lower end inside the frame 10, ensuring that the blowing range can cover the surface of the support plate 11. Two extrusion components 50 are respectively located on both sides of the frame 10, corresponding to the positions of the blowing section 40. A contact rod 51 for pushing the extrusion component 50 to move is fixedly installed on one side of the support plate 11. The extrusion component 50 extrudes the blowing section 40 to spray the blowing medium, thereby removing dust from the photovoltaic module supported by the support plate 11 and reducing the impact of dust accumulation on the photovoltaic power generation efficiency.

[0020] Specifically, the movable battery unit 30 can be linearly displaced into the frame 10. Its vertical displacement is smooth and without deviation, avoiding jamming. At this time, the movable battery unit 30 drives the folding part 20 to move through the lifting rod 21, and causes the two support plates 11 to rotate to a position that is in close contact with the side of the frame 10. This makes the frame 10 and the two support plates 11 form a protective space for the photovoltaic module and the movable battery unit 30. A sealing gasket is provided at the contact point between the support plate 11 and the frame 10, which can enhance the sealing of the protective space and further prevent rainwater and dust from entering. This protective space can provide good protection for the photovoltaic module and the movable battery unit 30 inside, effectively avoiding damage to the core components caused by external factors such as outdoor rain, snow, and impacts from debris. During this process, the contact rod 51 drives the extrusion component 50 to extrude air from the blowing part 40 to remove dust from the photovoltaic module and the movable battery unit 30.

[0021] In one embodiment, such as Figure 4 and Figure 6 As shown, specifically, the folding part 20 includes a rotating rod 201, which is rotatably mounted on the side of the support plate 11. Two rotating rods 201 on the same side are rotatably connected to a lifting block 202. The upper end of the lifting rod 21 is welded and fixed to the bottom of the lifting block 202. When the lifting rod 21 moves up and down, it can synchronously drive the lifting block 202 to move vertically. When the lifting block 202 moves, it drives the rotating rods 201 on both sides to rotate around the connection point through the rotating shaft. When the rotating rod 201 rotates, it synchronously drives the support plate 11 to rotate around the side of the frame 10, thereby realizing the unfolding and folding of the support plate 11. Wear-resistant bearings are provided at the connecting shafts of the rotating rod 201, the lifting block 202, and the support plate 11 to reduce friction during rotation, reduce component wear, and extend service life.

[0022] The frame 10 has a through hole 31 at the bottom for the movable battery unit 30 to enter and exit the frame 10. The movable battery unit 30 includes an electric push rod 301 and two batteries 303. The upper end of the electric push rod 301 is fixedly installed on the top inner side of the frame 10. A connecting block 302 is fixedly installed on the output end of the electric push rod 301. The two batteries 303 are symmetrically fixed at both ends of the connecting block 302. The batteries 303 are lithium batteries, which have the advantages of large capacity, high charging efficiency and long service life. When the electric push rod 301 is started, it can drive the connecting block 302 to move up and down, thereby driving the batteries 303 to move up and down. The batteries 303 can pass through the through hole 31 to enter and exit the frame 10, and can also drive the lifting block 202 to move through the lifting rod 21.

[0023] Specifically, a cover 304 is fixedly installed on the top surface of the battery 303. The cover 304 is triangular prism-shaped and its surface is smoothed to prevent dust from accumulating on the top surface of the cover 304. When dust falls on the top surface of the cover 304, it can pass down through the perforation 31 along the cover 304 and get off the frame 10, making it difficult for dust to accumulate on the top of the battery 303.

[0024] In one embodiment, such as Figure 5 As shown, specifically, the blowing unit 40 includes an airbag 401 and two exhaust pipes 403. The airbag 401 is fixedly installed on the top surface of the frame 10 and is made of highly elastic, aging-resistant rubber material, possessing good sealing performance and rebound capability. An air inlet 402 is fixedly installed on the upper end of the airbag 401, and the two exhaust pipes 403 are symmetrically fixedly installed on the bottom of the airbag 401. The exhaust pipes 403 penetrate the top of the frame 10, and their lower ends are fixedly connected to a blowing head 404 for blowing dust off the photovoltaic modules supported on the top surface of the support plate 11. The air inlet 402 is specifically used to blow air into the airbag 401. The one-way air inlet ensures that air can only enter the airbag 401 in one direction, preventing backflow of air when the airbag 401 is compressed and ensuring sufficient blowing pressure. The exhaust pipe 403 is connected to the blower head 404 through the air circuit one-way valve. The one-way air inlet 402 is used to inflate the airbag 401. Under the action of the air circuit one-way valve, the air in the airbag 401 can only be discharged through the exhaust pipe 403 and the blower head 404. The air circuit one-way valve can adjust the exhaust efficiency of the airbag 401, so that the blower head 404 can blow air evenly to clean the photovoltaic module and the mobile battery section 30.

[0025] In one embodiment, such as Figures 1-3As shown, specifically, a contact rod 51 for pushing the extrusion assembly 50 is fixedly installed on one side of the support plate 11. The extrusion assembly 50 includes two mounting plates 501 and a slider 506. The two mounting plates 501 are respectively fixedly installed on both sides of the frame 10. A telescopic rod 502 is fixedly installed on the inner side of the mounting plate 501. An L-shaped moving block 503 is fixedly installed at one end of the telescopic rod 502. An elastic element is provided between the L-shaped moving block 503 and the mounting plate 501. A groove 505 is opened on the top surface of the L-shaped moving block 503. The groove 505 adopts a T-slot design to prevent the slider 506 from moving. To improve sliding stability, the slider 506 is slidably installed inside the slide groove 505. A second spring 507 is fixedly installed on one side of the slider 506, and the end of the second spring 507 away from the slider 506 is fixedly installed inside the slide groove 505. An extrusion plate 508 is fixedly installed on the top surface of the slider 506. The two extrusion plates 508 are positioned opposite each other, and the blowing part 40 passes between the two extrusion plates 508. The elastic element is specifically a first spring 504. One end of the first spring 504 is fixedly installed on one side of the mounting plate 501, and the other end of the first spring 504 is fixedly installed on the L-shaped... On one side of the movable block 503, the first spring 504 surrounds the outside of the telescopic rod 502, which can protect the telescopic rod 502 and assist in the reset of the L-shaped movable block 503, ensuring that the spring extension direction is consistent with the telescopic rod 502, and preventing spring misalignment and deformation. The abutment rod 51 rotates with the bearing plate 11, thereby abutting the L-shaped movable block 503. The L-shaped movable block 503 drives the extrusion plate 508 to move through the slider 506. After the extrusion plate 508 contacts the airbag 401, the L-shaped movable block 503 continues to move, but is blocked by the airbag 401. 8 and slider 506 move relative to L-shaped moving block 503, and under the action of second spring 507, slider 506 and extrusion plate 508 keep extruding airbag 401 to exhaust air. After the photovoltaic module on the support plate 11 and its surface moves to a vertical position, it can continuously extrude the blowing part 40 to blow air onto the surface of the photovoltaic module and the moving battery part 30 to clean the surface dust. This can extend the cycle of manually cleaning the photovoltaic module and the moving battery part 30. At the same time, the automatic reset function of the extrusion component 50 can avoid manual intervention, improve the automation level of the device, and reduce maintenance costs.

[0026] In one embodiment, such as Figure 1 and Figure 7As shown, specifically, a photovoltaic panel 12 is fixedly installed on the top surface of the support plate 11, and a protective plate 13 is fixedly installed on the bottom surface of the support plate 11. The protective plate 13 has a slope on the side away from the support plate 11 to guide the water flow. After the two support plates 11 move to the side of the contact frame 10, the frame 10, the support plate 11, and the protective plate 13 protect the movable battery unit 30 and the photovoltaic panel 12. It is worth noting that the slope on one side of the protective plate 13 can be used to guide rainwater and snow water to flow down. The surface of the slope is smoothed to accelerate the sliding of rainwater and snow water and prevent water accumulation and freezing from damaging the protective plate 13.

[0027] Working principle: In use, the support plate 11 supports the photovoltaic panel 12. The photovoltaic panel 12 generates electricity and stores the electrical energy in the battery 303 through the inverter and other equipment. In rainy or snowy weather or at night, the photovoltaic panel 12 cannot generate electricity normally. At this time, the switch of the electric push rod 301 is activated, which drives the connecting block 302 to move upward. The connecting block 302 drives the battery 303 to move upward, which passes through the through hole 31 and enters the inside of the frame 10. During this process, the battery 303 drives the lifting rod 21 to move upward. The lifting rod 21 drives the lifting block 202 to move upward, thereby driving the rotating rod 201 to rotate. The rotating rod 201 drives the two support plates 11 to rotate towards the frame 10. Finally, the two support plates 11 close the two sides of the frame 10. At this time, the frame 10 and the two support plates 11 form a space to protect the photovoltaic panel 12 and the battery 303, so that the battery 303 and the photovoltaic panel 12 are protected from rainy or snowy weather and external collisions. At night, it can reduce the dust accumulation on the surface of the photovoltaic panel 12 and extend its maintenance cycle. When the support plate 11 rotates, it drives the abutment rod 51 to rotate. When the abutment rod 51 rotates to the rear section, it abuts the L-shaped moving block 503 and moves. During the movement of the L-shaped moving block 503, it drives the slider 506 inside it to move. The slider 506 drives the extrusion plate 508 to move and contact the airbag 401. After the L-shaped moving block 503 moves into place, because the gas in the airbag 401 has not been completely discharged, the extrusion plate 508 remains in contact with the airbag 401. Therefore, the slider 506 slides relative to the L-shaped moving block 503, causing the second spring 507 to stretch. When the L-shaped moving block 503 is in place, the abutment rod 51 and the support plate 11 are both in place. At this time, the photovoltaic panel 12 remains in a vertical state, and the extrusion... The pressure plate 508 maintains the state of squeezing the airbag 401. The air inside the airbag 401 is discharged through the exhaust pipe 403 and the blower head 404, thereby blowing off the floating dust on the surface of the photovoltaic panel 12 and the outer shell of the battery 303. The blown-off floating dust falls out of the frame 10 through the perforation 31. Under the combined action of the slider 506, the second spring 507 and the pressure plate 508, when the photovoltaic panel 12 is rotated to the vertical position, the pressure plate 508 continues to squeeze the airbag 401 until most of the air inside the airbag 401 is discharged. This achieves the effect of cleaning the floating dust on the surface of the photovoltaic panel 12 and the battery 303 during the folding process of the photovoltaic panel 12, and extends the manual maintenance cycle of the photovoltaic panel 12 and the battery 303. When power generation is needed, the electric push rod 301 extends, causing the connecting block 302 and the battery 303 to move downwards. The battery 303 drives the lifting rod 21 to move downwards, which in turn drives the rotating rod 201 to rotate through the lifting block 202, causing the two support plates 11 to rotate to a horizontal state, allowing sunlight to fully irradiate the photovoltaic panel 12. At this time, the battery 303 moves to the lower side of the two protective plates 13. The two support plates 11, together with the cover 304, shield the battery 303 from sunlight, reducing the charging temperature of the battery 303. Moreover, the battery 303 is unobstructed in the horizontal direction and at the bottom, which helps it to passively dissipate heat. It is worth noting that, due to the loss of the resistance of the abutment rod 51, the first spring 504 drives the L-shaped moving block 503 to reset, causing the slider 506, the second spring 507, and the extrusion plate 508 to reset, preparing for the next extrusion. At this time, the airbag 401 is squeezed by the extrusion plate 508. The reset force of the material itself causes the airbag 401 to generate negative pressure, and can draw in air through the air inlet 402 for storage, preparing for subsequent blowing.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the foldable protective photovoltaic device and its inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. A foldable protective photovoltaic device, comprising a frame (10) and two support plates (11) rotatably mounted on both sides of the frame (10), characterized in that, Also includes: Two folding parts (20) are rotatably connected to one side of the support plate (11). The folding parts (20) are displaced to drive the support plate (11) to rotate. A lifting rod (21) is fixedly installed at the bottom of the folding parts (20). The movable battery unit (30) is located inside the frame (10). One end of the lifting rod (21) is connected to the bottom of the movable battery unit (30). The bottom of the movable battery unit (30) can be retracted into the frame (10) and drive the lifting rod (21) to move. Multiple spray nozzles (40) are disposed on the top of the frame (10), with the lower ends of the spray nozzles (40) located inside the frame (10); Two extrusion components (50) are respectively set on both sides of the frame (10). A contact rod (51) for pushing the extrusion component (50) to move is fixedly installed on one side of the support plate (11). The extrusion component (50) extrudes the blowing part (40) to make it blow the medium to remove dust from the photovoltaic module carried by the support plate (11).

2. The foldable protective photovoltaic device according to claim 1, characterized in that: The fold (20) includes: Rotating rod (201) is rotatably installed on the side of bearing plate (11). On the same side, two rotating rods (201) are rotatably connected to a lifting block (202). The upper end of the lifting rod (21) is welded and fixed to the bottom of the lifting block (202).

3. A foldable protective photovoltaic device according to claim 1, characterized in that: The bottom of the frame (10) has a through hole (31) for the movable battery unit (30) to enter and exit the frame (10), and the movable battery unit (30) includes: An electric push rod (301) is fixedly installed at the top of the inner side of the frame (10), and a connecting block (302) is fixedly installed at the output end of the electric push rod (301). Two batteries (303) are symmetrically fixed at both ends of the connecting block (302), and the batteries (303) are lithium batteries.

4. A foldable protective photovoltaic device according to claim 3, characterized in that: A cover (304) is fixedly installed on the top surface of the battery (303). The cover (304) is triangular prism-shaped and is used to prevent dust from accumulating on the top surface of the cover (304).

5. A foldable protective photovoltaic device according to claim 1, characterized in that: The spray section (40) includes: An airbag (401) is fixedly installed on the top surface of the frame (10), and an air inlet (402) is fixedly installed on the upper end of the airbag (401). Two exhaust pipes (403) are symmetrically fixedly installed at the bottom of the airbag (401). The exhaust pipes (403) penetrate the top of the frame (10). The lower end of the exhaust pipes (403) is fixedly connected to a blower head (404) for blowing the photovoltaic module supported on the top surface of the support plate (11).

6. A foldable protective photovoltaic device according to claim 5, characterized in that: The air inlet (402) is specifically a one-way air inlet for inputting air into the airbag (401), and the exhaust pipe (403) is connected to the blow nozzle (404) through a one-way air valve.

7. A foldable protective photovoltaic device according to claim 1, characterized in that: A contact rod (51) for pushing the extrusion assembly (50) to move is fixedly installed on one side of the support plate (11). The extrusion assembly (50) includes: Two mounting plates (501) are fixedly installed on both sides of the frame (10). A telescopic rod (502) is fixedly installed on the inner side of the mounting plate (501). An L-shaped moving block (503) is fixedly installed at one end of the telescopic rod (502). An elastic element is provided between the L-shaped moving block (503) and the mounting plate (501). A sliding groove (505) is opened on the top surface of the L-shaped moving block (503). A slider (506) is slidably installed inside a slide groove (505). A second spring (507) is fixedly installed on one side of the slider (506). The end of the second spring (507) away from the slider (506) is fixedly installed inside the slide groove (505). An extrusion plate (508) is fixedly installed on the top surface of the slider (506).

8. A foldable protective photovoltaic device according to claim 7, characterized in that: The two extrusion plates (508) are positioned opposite each other, and the blowing part (40) passes between the two extrusion plates (508).

9. A foldable protective photovoltaic device according to claim 7, characterized in that: The elastic element is specifically a first spring (504), one end of which is fixedly installed on one side of the mounting plate (501), and the other end of which is fixedly installed on one side of the L-shaped moving block (503).

10. A foldable protective photovoltaic device according to claim 1, characterized in that: A photovoltaic panel (12) is fixedly installed on the top surface of the bearing plate (11), and a protective plate (13) is fixedly installed on the bottom surface of the bearing plate (11). The protective plate (13) has an inclined surface on the side away from the bearing plate (11) for guiding water flow.

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