Photovoltaic lighting device for water conservancy and hydropower and use method of photovoltaic lighting device

Abstract

The photovoltaic lighting device comprises a wind-proof box (1), an opening is formed in the top of the wind-proof box (1), a transparent movable plate is arranged at the opening, a lifting mechanism (3) is arranged in the wind-proof box (1), and a lifting base (31) connected with the wind-proof box (1) in an up-down sliding mode is arranged on the lifting mechanism (3). A photovoltaic module (4) and a locking mechanism (5) for fixing the photovoltaic module (4) are arranged on the lifting base (31); a wind driven generator (6) is arranged outside the windproof box (1), a wind meter (61) is arranged on the wind driven generator (6), the wind meter (61) is electrically connected with the lifting mechanism (3), the locking mechanism (5) and the wind driven generator (6) through a control system, and the photovoltaic module (4) and the wind driven generator (6) are both electrically connected with a lighting device. According to the invention, the working stability and high efficiency of the photovoltaic panel in a severe environment are improved.

Description

Technical Field

[0001] The invention relates to a photovoltaic device, in particular to a photovoltaic lighting device for water conservancy and hydropower and a use method thereof. Background Art

[0002] Some projects of pumped storage power stations are located in high-altitude landforms, which not only have strong winds with maximum wind speeds of up to 25.0m / s, but also are accompanied by sandstorms. How to use photovoltaic power generation in severe weather and environments at high altitudes is a difficult problem. Conventional photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. It is mainly composed of three parts: solar panels, control systems, and inverters. After being connected in series and packaged for protection, solar panels can form large-area solar cell modules, which are then combined with power control systems and other components to form photovoltaic power generation devices.

[0003] However, the existing photovoltaic power generation devices are directly exposed to the outside world and have no corresponding protective devices. When they are affected by harsh environments, such as strong winds and sandstorms, the photovoltaic panels are easily polluted and damaged, affecting the working efficiency of the photovoltaic panels. In particular, some adjustable photovoltaic panels are hinged between the photovoltaic panels and the brackets. Under strong winds, the photovoltaic panels are prone to shaking, detaching, and causing damage. Therefore, the existing photovoltaic power generation devices have the problem of unstable power generation in harsh environments. Summary of the invention

[0004] The purpose of the present invention is to provide a photovoltaic lighting device for water conservancy and hydropower and a method of using the same. The present invention has the characteristics of improving the working stability and efficiency of photovoltaic panels in harsh environments.

[0005] The technical solution of the present invention is as follows: a photovoltaic lighting device for water conservancy and hydropower, comprising a windproof box, an opening is provided on the top of the windproof box, a transparent movable plate is provided at the opening, a lifting mechanism is provided inside the windproof box, a lifting base is provided on the lifting mechanism and is slidably connected to the windproof box up and down, a photovoltaic module and a locking mechanism for fixing the photovoltaic module are provided on the lifting base; a wind turbine is provided outside the windproof box, a wind turbine is provided on the wind turbine, the anemometer is electrically connected to the lifting mechanism, the locking mechanism and the wind turbine respectively through a control system, and the photovoltaic module and the wind turbine are both electrically connected to the lighting device.

[0006] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, the photovoltaic assembly includes a support seat, on which an adjustment frame is rotatably connected, on which a first photovoltaic panel is arranged, and on both sides below the first photovoltaic panel, second photovoltaic panels are symmetrically and slidably connected.

[0007] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, a first bidirectional screw is provided on the adjustment frame, one end of the first bidirectional screw is provided with a first driving motor, and the two threaded parts of the first bidirectional screw are respectively threadedly connected with first sliders, one end of the two first sliders are respectively fixedly connected to the second photovoltaic panels, and the other ends of the two first sliders are slidably connected to the slide groove on the adjustment frame.

[0008] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, a rotating motor for driving the adjustment frame to rotate is provided on the support seat.

[0009] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, the locking mechanism includes a second bidirectional screw, one end of which is provided with a second driving motor, and the two threaded portions of the second bidirectional screw are respectively threadedly connected with a second slider, and the second slider is provided with an electromagnet block, and the bottom of the adjustment frame is hinged with a limit block, and the bottom of the limit block is provided with a magnetic counterweight block which corresponds to and is adsorbed with the electromagnet block.

[0010] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, traction devices are symmetrically provided on the front and rear sides of the first photovoltaic panel and the second photovoltaic panel, and the traction device includes a first rope pulley and a second rope pulley respectively located on the left and right sides of the first photovoltaic panel or the second photovoltaic panel, and a rope pulley motor is provided on the first rope pulley or the second rope pulley, and a traction rope is wrapped around the first rope pulley and the second rope pulley to form a transmission loop, and a cleaning roller is fixedly connected to the traction rope and reciprocates along the surface of the first photovoltaic panel or the second photovoltaic panel.

[0011] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, the cleaning roller includes a sliding shaft fixedly connected to a traction rope, a protective sleeve is provided on the outside of the sliding shaft, and a cleaning brush and cleaning cotton are symmetrically distributed on the outer peripheral surface of the protective sleeve; a water tank with an open top is provided on the outer side edges of the first photovoltaic panel and the second photovoltaic panel, and a water tank with a serrated scraper is provided on the open side of the water tank facing the cleaning roller, and when the cleaning roller moves to the water tank, the cleaning brush and cleaning cotton come into contact with the water in the water tank.

[0012] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, the lifting mechanism adopts an electric push rod, and the transparent movable plate includes a first slide plate and a second slide plate slidably connected to the opening of the windproof box, and the bottom of the first slide plate and the second slide plate are provided with a rack, and the outer side of the windproof box is provided with a gear meshing with the rack, and the gear is rotatably connected to the windproof box via a rotating shaft, and a rope winding roller is coaxially provided on the rotating shaft, and a torsion spring is also sleeved on the rotating shaft, one end of the torsion spring is connected to the rope winding roller, and the other end of the torsion spring is connected to the windproof box, a pull rope is wound on the rope winding roller, and a guide wheel is provided on the windproof box below the gear, one end of the pull rope is fixedly connected to the rope winding roller, and the other end of the pull rope passes around the guide wheel and passes through the windproof box and is fixedly connected to the lifting base.

[0013] In the aforementioned photovoltaic lighting device for water conservancy and hydropower, a rainwater receiving box is provided on the outside of the windproof box, a filter plate extending from the inside to the outside and slanting downward is provided on the top of the rainwater receiving box, a filter membrane is provided on the surface of the filter plate, a water pipe is provided in the rainwater receiving box, the water pipe is provided with a water pump and a nozzle, and a water leakage hole is provided at the bottom of the windproof box.

[0014] The method for using the above-mentioned photovoltaic lighting device for water conservancy and hydropower includes sending information to the control system when the anemometer detects that the external wind speed reaches 3m / s, and the control system controls the locking mechanism to start, locking the photovoltaic panel to prevent it from being damaged by strong winds; when the anemometer detects that the external wind speed is greater than 5m / s, the anemometer sends information to the control system, and the control system controls the lifting mechanism to start, driving the photovoltaic module to descend into the windproof box, thereby protecting the photovoltaic module and preventing the photovoltaic module from being damaged by strong winds, so that the photovoltaic module can still generate electricity in severe weather conditions and power the lighting device through the inverter.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention uses a wind meter to monitor the wind speed, wind direction, etc. of the external environment in real time, adjusts the working state of the photovoltaic component according to the detected wind conditions, and combines the windproof measures of the windproof box to enable the photovoltaic lighting device to still generate electricity and illuminate stably in windy weather at high altitudes, greatly improving work efficiency; and the locking mechanism makes the structure of the photovoltaic device more stable and will not fall off at will in windy weather, reducing safety hazards.

[0017] Therefore, the present invention has the characteristics of improving the working stability and efficiency of the photovoltaic panel in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of a photovoltaic module.

[0020] Figure 3 It is a schematic diagram of the structure when the adjustment frame is in a tilted state.

[0021] Figure 4 It is a schematic diagram of the working status of the cleaning roller.

[0022] Figure 5 It is a schematic diagram of the side structure of the cleaning roller.

[0023] Figure 6 It is a structural diagram of a rainwater receiving box.

[0024] The markings in the attached drawings are: 1, windproof box; 11, rainwater receiving box; 12, filter plate; 13, water pipe; 14, nozzle; 15, water leakage hole; 21, first slide plate; 22, second slide plate; 23, rack; 24, gear; 25, rope roller; 26, pull rope; 27, guide wheel; 3, lifting mechanism; 31, lifting base; 4, photovoltaic module; 41, support seat; 42, adjustment frame; 43, first photovoltaic panel; 44, second photovoltaic panel; 441, first bidirectional screw rod; 442 , first drive motor; 443, first slider; 5, locking mechanism; 51, second bidirectional screw rod; 52, second drive motor; 53, second slider; 54, electromagnet block; 55, limit block; 56, magnetic counterweight; 6, wind turbine; 61, anemometer; 71, first rope pulley; 72, second rope pulley; 73, traction rope; 74, cleaning roller; 741, sliding shaft; 742, protective cover; 743, cleaning brush; 744, cleaning cotton; 75, water tank; 76, scraper. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the embodiments, but they are not intended to limit the present invention.

[0026] Example:

[0027] like Figure 1-Figure 6 As shown, a photovoltaic lighting device for water conservancy and hydropower comprises a windproof box 1, the top of which is provided with an opening, a transparent movable panel is provided at the opening, a lifting mechanism 3 is provided inside the windproof box 1, a lifting base 31 is provided on the lifting mechanism 3 and is connected to the windproof box 1 for sliding up and down, a photovoltaic module 4 and a locking mechanism 5 for fixing the photovoltaic module 4 are provided on the lifting base 31; a wind turbine 6 is provided outside the windproof box 1, a wind turbine 6 is provided on the wind turbine 6, the wind turbine 6 is provided with an anemometer 61, the anemometer 61 is electrically connected to the lifting mechanism 3, the locking mechanism 5 and the wind turbine 6 respectively through a control system, and the photovoltaic module 4 and the wind turbine 6 are both electrically connected to the lighting device.

[0028] When the photovoltaic assembly 4 is working, the lifting mechanism 3 drives the lifting base 31 to rise, and at the same time the transparent movable plate opens the windproof box 1, so that the photovoltaic assembly 4 is exposed to the outside to receive sunlight; when the external wind speed reaches the first critical value, the anemometer 61 sends information to the control system, and the control system controls the locking mechanism 5 to lock the photovoltaic assembly 4 so that it is not damaged by strong winds; when the anemometer 61 detects that the external wind speed is greater than the second critical value, the anemometer 61 sends information to the control system, and the control system controls the lifting mechanism 3 to drive the photovoltaic assembly 4 to descend into the windproof box 1, thereby protecting the photovoltaic assembly 4 and preventing the photovoltaic assembly 4 from being damaged by strong winds, so that the photovoltaic assembly 4 can still generate electricity under severe weather conditions and power the lighting device through the inverter.

[0029] The anemometer 61 transmits the collected data such as wind speed and wind direction to the control system of the wind turbine 6 through a cable. The control system adjusts the operating state of the wind turbine 6 according to these data to optimize the power generation efficiency.

[0030] The photovoltaic assembly 4 includes a support seat 41, an adjustment frame 42 is rotatably connected to the support seat 41, a first photovoltaic panel 43 is fixedly connected to the adjustment frame 42, and a second photovoltaic panel 44 is symmetrically slidably connected to the two sides below the first photovoltaic panel 43. By rotating the adjustment frame 42, the light receiving angles of the first photovoltaic panel 43 and the second photovoltaic panel 44 can be adjusted, so that they can receive solar energy following the sun's irradiation angle, face the sun at the best angle to absorb sunlight, and improve the solar energy receiving efficiency and photovoltaic power generation efficiency; the second photovoltaic panel 44 is arranged below the first photovoltaic panel 43, when the sunlight is weak, the second photovoltaic panel 44 retracts below the first photovoltaic panel 43, reducing the resistance to wind and sand, and reducing the damage caused by wind and sand to the photovoltaic assembly 4; when the sunlight is strong, the second photovoltaic panel 44 extends out from the bottom of the first photovoltaic panel 43, expanding the solar energy receiving area, and improving the photovoltaic power generation efficiency.

[0031] The adjustment frame 42 is provided with a first bidirectional screw rod 441, one end of which is provided with a first driving motor 442, and two threaded portions of the first bidirectional screw rod 441 are respectively threadedly connected with first sliders 443, one end of the two first sliders 443 is respectively fixedly connected with the second photovoltaic panels 44, and the other ends of the two first sliders 443 are slidably connected with the slide grooves provided on the adjustment frame 42. The first driving motor 442 drives the first bidirectional screw rod 441 to rotate, so that the two first sliders 443 are moved closer to or away from each other, thereby driving the two second photovoltaic panels 44 to retract or extend below the first photovoltaic panel 43.

[0032] The support seat 41 is provided with a rotating motor for driving the adjustment frame 42. The adjustment frame 42 is connected to the support seat 41 via a rotating shaft, and the rotating motor drives the rotating shaft to rotate, so that the adjustment frame 42 rotates, thereby adjusting the angle of sunlight irradiating the first photovoltaic panel 43 and the second photovoltaic panel 44 on the adjustment frame 42.

[0033] The locking mechanism 5 includes a second bidirectional screw rod 51, one end of which is provided with a second driving motor 52, two threaded parts of the second bidirectional screw rod 51 are respectively threadedly connected with a second slider 53, an electromagnet block 54 is provided on the second slider 53, and a limit block 55 is hinged at the bottom of the adjustment frame 42, and a magnetic counterweight block 56 corresponding to and adsorbed with the electromagnet block 54 is provided at the bottom of the limit block 55. The second bidirectional screw rod 51 is driven to rotate by the first driving motor 442 to drive the two second sliders 53 to move closer to or away from each other; when it is necessary to lock the photovoltaic module 4, the two second sliders 53 are respectively moved to the corresponding limit blocks 55 on both sides, and at the same time, the electromagnet block 54 is energized to make it magnetic, and the magnetic counterweight block 56 on the limit block 55 is adsorbed, thereby locking the photovoltaic module 4, so that it is not easily affected by strong winds and shaken, collided and damaged, and its working stability is ensured. And because the limit block 55 is hinged to the adjustment frame 42, even if the adjustment frame 42 is in a tilted state, the limit block 55 always remains in a vertical state under the action of the magnetic counterweight block 56, so that it can be better adsorbed and fixed with the electromagnet block 54, ensuring that the adjustment frame 42 can be locked by the locking mechanism 5 in different tilted states to better and more stably absorb light energy.

[0034] A traction device is symmetrically provided on the front and rear sides of the first photovoltaic panel 43 and the second photovoltaic panel 44, and the traction device includes a first rope pulley 71 and a second rope pulley 72 respectively located on the left and right sides of the first photovoltaic panel 43 or the second photovoltaic panel 44, and a rope pulley motor is provided on the first rope pulley 71 or the second rope pulley 72, and a traction rope 73 is wrapped around the first rope pulley 71 and the second rope pulley 72 to form a transmission loop, and a cleaning roller 74 is fixedly connected to the traction rope 73 and reciprocates along the surface of the first photovoltaic panel 43 or the second photovoltaic panel 44.

[0035] By controlling the forward and reverse rotation of the rope pulley motor, the traction rope 73 is guided to drive the cleaning roller 74 to reciprocate along the surface of the first photovoltaic panel 43 or the second photovoltaic panel 44, and the surface of the first photovoltaic panel 43 and the second photovoltaic panel 44 is cleaned to remove dust, stains, etc. on the surface of the first photovoltaic panel 43 and the second photovoltaic panel 44 to avoid blocking the first photovoltaic panel 43 and the second photovoltaic panel 44 and affecting the light energy absorption efficiency, thereby ensuring the surface cleanliness and photovoltaic effect efficiency of the first photovoltaic panel 43 and the second photovoltaic panel 44. A limit plate can be set on the side of the first photovoltaic panel 43 and the second photovoltaic panel 44, and a limit groove is set on the limit plate. The two ends of the cleaning roller 74 are slidably connected to the limit groove through a third slider, thereby ensuring the position accuracy of the cleaning roller 74 during the movement and avoiding tilting.

[0036] The cleaning roller 74 includes a sliding shaft 741 fixedly connected to the traction rope 73, and a protective sleeve 742 is provided on the outside of the sliding shaft 741, and a cleaning brush 743 and a cleaning cotton 744 are symmetrically distributed on the outer peripheral surface of the protective sleeve 742; a water tank 75 with an open top is provided on the outer side of the first photovoltaic panel 43 and the second photovoltaic panel 44 between the two groups of traction devices, and a serrated scraper 76 is provided on the open side of the water tank 75 facing the cleaning roller 74, and when the cleaning roller 74 moves to the water tank 75, the cleaning brush 743 and the cleaning cotton 744 contact the water in the water tank 75. In the process of moving and cleaning the first photovoltaic panel 43 and the second photovoltaic panel 44, the cleaning roller 74 first removes dust particles on the surface of the first photovoltaic panel 43 and the second photovoltaic panel 44 through the cleaning brush 743, and then further removes stubborn stains attached to the surface of the first photovoltaic panel 43 and the second photovoltaic panel 44 that are difficult to remove through the cleaning cotton 744, so as to improve the cleaning effect on the surface of the first photovoltaic panel 43 and the second photovoltaic panel 44. Moreover, when the cleaning roller 74 moves to the water tank 75, the cleaning brush 743 and the cleaning cotton 744 come into contact with the water in the water tank 75, wetting the cleaning cotton 744, and the stains on the cleaning brush 743 and the cleaning cotton 744 are cleaned and scraped off by the scraper 76, thereby improving the subsequent cleaning effect.

[0037] The lifting mechanism 3 adopts an electric push rod, and the transparent movable plate includes a first slide plate 21 and a second slide plate 22 which are slidably connected to the opening of the windproof box 1 for opening and closing the windproof box 1. A rack 23 is provided at the bottom of the first slide plate 21 and the second slide plate 22. A gear 24 meshing with the rack 23 is provided on the outer side of the windproof box 1. The gear 24 is rotatably connected to the windproof box 1 via a rotating shaft. A rope roller 25 is coaxially provided on the rotating shaft, and a torsion spring is also sleeved on the rotating shaft. One end of the torsion spring is connected to the rope roller 25, and the other end of the torsion spring is connected to the windproof box 1. A pull rope 26 is wound on the rope roller 25. A guide wheel 27 is provided on the windproof box 1 below the gear 24. One end of the pull rope 26 is fixedly connected to the rope roller 25, and the other end of the pull rope 26 passes around the guide wheel 27 and passes through the windproof box 1 and is fixedly connected to the lifting base 31. When the lifting base 31 rises under the drive of the lifting mechanism 3, the lifting base 31 drives one end of the pull rope 26 to move upward, and the other end of the pull rope 26 drives the rope winding roller 25 to rotate through the guide wheel 27 to overcome the elastic force of the torsion spring, and the rope winding roller 25 drives the gear 24 to rotate, and the corresponding first slide plate 21 and the second slide plate 22 are driven by the matched rack 23 to separate from each other and slide outward to open the opening of the windproof box 1, and the torsion spring is in a deformed state at this time; when the lifting base 31 descends under the drive of the lifting mechanism 3, the lifting base 31 drives one end of the pull rope 26 to move downward, and the rope winding roller 25 winds the other end of the pull rope 26 under the action of the restoring force of the torsion spring, and at the same time drives the gear 24 to rotate in the opposite direction, and the corresponding first slide plate 21 and the second slide plate 22 are driven by the matched rack 23 to slide inward to close the opening of the windproof box 1, thereby realizing the linkage relationship between the lifting and lowering of the lifting base 31 and the opening and closing of the windproof box 1.

[0038] The outside of the windproof box 1 is provided with a rainwater receiving box 11, and the top of the rainwater receiving box 11 is provided with a filter plate 12 extending from the inside to the outside and tilting downward, and the surface of the filter plate 12 is provided with a filter membrane, and the rainwater receiving box 11 is provided with a water pipe 13 passing through the filter plate 12 and the filter membrane and extending into the windproof box 1, and the water pipe 13 is provided with a water pump and a nozzle 14, and the bottom of the windproof box 1 is provided with a leaking hole 15. The rainwater receiving box 11 is used to receive rainwater from the outside, and filter the sand and dust from the outside through the filter plate 12 and the filter membrane, so that the sand and dust from the outside are discharged along the tilting direction of the filter plate 12; the rainwater collected in the rainwater receiving box 11 is flushed onto the photovoltaic module 4 located in the windproof box 1 through the water pipe 13, and the photovoltaic module 4 contaminated by the outside is cleaned; the washed sewage is discharged through the leaking hole 15. That is, the windproof box 1 not only plays a role in protecting the photovoltaic module 4, but also plays a role in cleaning the photovoltaic module 4, and can also fully collect and utilize the rainwater resources from the outside, playing a role in environmental protection and energy saving.

[0039] The method of using the above-mentioned photovoltaic lighting device for water conservancy and hydropower is as follows: when the anemometer 61 detects that the external wind speed reaches 3m / s, it sends information to the control system, and the control system controls the locking mechanism 5 to start, locking the photovoltaic panel to prevent it from being collected and damaged by strong winds; when the anemometer 61 detects that the external wind speed is greater than 5m / s, the anemometer 61 sends information to the control system, and the control system controls the lifting mechanism 3 to start, driving the photovoltaic component 4 to descend into the windproof box 1, thereby protecting the photovoltaic component 4 and preventing the photovoltaic component 4 from being damaged by strong winds, so that the photovoltaic component 4 can still generate electricity in severe weather conditions and power the lighting device through the inverter.

[0040] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. Photovoltaic lighting device for water conservancy and hydropower, characterized by: The invention comprises a windproof box (1), wherein the top of the windproof box (1) is provided with an opening, and a transparent movable plate is provided at the opening; a lifting mechanism (3) is provided inside the windproof box (1); a lifting base (31) is provided on the lifting mechanism (3) and is connected to the windproof box (1) in an upward and downward sliding manner; a photovoltaic module (4) and a locking mechanism (5) for fixing the photovoltaic module (4) are provided on the lifting base (31); a wind turbine (6) is provided outside the windproof box (1); a wind turbine (6) is provided on the wind turbine (6); the wind turbine (6) is electrically connected to the lifting mechanism (3), the locking mechanism (5) and the wind turbine (6) respectively through a control system; and the photovoltaic module (4) and the wind turbine (6) are both electrically connected to a lighting device.

2. The photovoltaic lighting device for water conservancy and hydropower according to claim 1, characterized in that: The photovoltaic assembly (4) comprises a support seat (41), an adjustment frame (42) is rotatably connected to the support seat (41), a first photovoltaic panel (43) is arranged on the adjustment frame (42), and second photovoltaic panels (44) are symmetrically slidably connected to the two sides below the first photovoltaic panel (43).

3. The photovoltaic lighting device for water conservancy and hydropower according to claim 2 is characterized in that: The adjustment frame (42) is provided with a first bidirectional screw rod (441), one end of the first bidirectional screw rod (441) is provided with a first driving motor (442), two threaded parts of the first bidirectional screw rod (441) are respectively threadedly connected with first sliders (443), one end of the two first sliders (443) are respectively fixedly connected to the second photovoltaic panel (44), and the other ends of the two first sliders (443) are slidably connected to the sliding groove on the adjustment frame (42).

4. The photovoltaic lighting device for water conservancy and hydropower according to claim 2, characterized in that: The support seat (41) is provided with a rotating motor for driving the adjustment frame (42) to rotate.

5. The photovoltaic lighting device for water conservancy and hydropower according to claim 2 is characterized in that: The locking mechanism (5) comprises a second bidirectional screw rod (51), one end of which is provided with a second driving motor (52), two threaded portions of the second bidirectional screw rod (51) are respectively threadedly connected with second sliders (53), the second slider (53) is provided with an electromagnet block (54), the bottom of the adjustment frame (42) is hinged with a limit block (55), and the bottom of the limit block (55) is provided with a magnetic counterweight block (56) corresponding to and adsorbed with the electromagnet block (54).

6. The photovoltaic lighting device for water conservancy and hydropower according to claim 2, characterized in that: The first photovoltaic panel (43) and the second photovoltaic panel (44) are symmetrically provided with traction devices on both sides of the front and rear, and the traction devices include a first rope wheel (71) and a second rope wheel (72) respectively located on the left and right sides of the first photovoltaic panel (43) or the second photovoltaic panel (44), a rope wheel motor is provided on the first rope wheel (71) or the second rope wheel (72), a traction rope (73) is wound around the first rope wheel (71) and the second rope wheel (72) to form a transmission circuit, and a cleaning roller (74) is fixedly connected to the traction rope (73) and reciprocates along the surface of the first photovoltaic panel (43) or the second photovoltaic panel (44).

7. The photovoltaic lighting device for water conservancy and hydropower according to claim 6, characterized in that: The cleaning roller (74) comprises a sliding shaft (741) fixedly connected to the traction rope (73); a protective sleeve (742) is provided on the outside of the sliding shaft (741); a cleaning brush (743) and a cleaning cotton (744) are symmetrically distributed on the outer peripheral surface of the protective sleeve (742); a water tank (75) with an open top is provided on the outer side of the first photovoltaic panel (43) and the second photovoltaic panel (44) between the two groups of traction devices; a serrated scraper (76) is provided on the open side of the water tank (75) facing the cleaning roller (74); when the cleaning roller (74) moves to the water tank (75), the cleaning brush (743) and the cleaning cotton (744) come into contact with water in the water tank (75).

8. The photovoltaic lighting device for water conservancy and hydropower according to claim 1, characterized in that: The lifting mechanism (3) adopts an electric push rod, and the transparent movable plate includes a first slide plate (21) and a second slide plate (22) which are slidably connected to the opening of the windproof box (1). The bottoms of the first slide plate (21) and the second slide plate (22) are both provided with a rack (23). The outer side of the windproof box (1) is provided with a gear (24) meshing with the rack (23). The gear (24) is rotatably connected to the windproof box (1) via a rotating shaft, and a rope winding roller (25) is coaxially provided on the rotating shaft. A torsion spring is also sleeved on the rotating shaft, one end of the torsion spring is connected to a rope winding roller (25), and the other end of the torsion spring is connected to the windproof box (1). A pull rope (26) is wound on the rope winding roller (25), and a guide wheel (27) is provided on the windproof box (1) below the gear (24). One end of the pull rope (26) is fixedly connected to the rope winding roller (25), and the other end of the pull rope (26) passes around the guide wheel (27) and passes through the windproof box (1) to be fixedly connected to the lifting base (31).

9. The photovoltaic lighting device for water conservancy and hydropower according to claim 1, characterized in that: A rainwater receiving box (11) is arranged on the outside of the windproof box (1), a filter plate (12) extending from the inside to the outside and tilting downward is arranged on the top of the rainwater receiving box (11), a filter membrane is arranged on the surface of the filter plate (12), a water pipe (13) passing through the filter plate (12) and the filter membrane and extending into the windproof box (1) is arranged in the rainwater receiving box (11), a water pump and a nozzle (14) are arranged on the water pipe (13), and a water leakage hole (15) is arranged at the bottom of the windproof box (1).

10. The method for using the photovoltaic lighting device for water conservancy and hydropower according to any one of claims 1 to 9, characterized in that: The method includes sending information to a control system when the anemometer (61) detects that the external wind speed reaches 3 m / s, and the control system controls the locking mechanism (5) to start, thereby locking the photovoltaic panel to prevent it from being damaged by strong winds; when the anemometer (61) detects that the external wind speed is greater than 5 m / s, the anemometer (61) sends information to the control system, and the control system controls the lifting mechanism (3) to start, thereby driving the photovoltaic assembly (4) to descend into the windproof box (1), thereby protecting the photovoltaic assembly (4) and preventing the photovoltaic assembly (4) from being damaged by strong winds, so that the photovoltaic assembly (4) can still generate electricity in severe weather conditions and supply power to the lighting device through the inverter.

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