A tilt-adjustable photovoltaic device

Abstract

The application discloses a kind of adjustable inclination photovoltaic equipment, it is related to photovoltaic equipment technical field, this kind of adjustable inclination photovoltaic equipment, including chassis and turnover frame, the turnover frame is rotationally installed at the top of chassis, the top of the turnover frame is fixedly installed with clamping device, the front of the chassis is provided with switch, the front of the clamping device is provided with speed reducer, the speed reducer includes fixed block, hydraulic rod, hydraulic cylinder, piston plate, connecting block, oil cylinder and T-shaped block, the inclination angle of turnover frame can be adjusted by electric push rod device, prevent photovoltaic panel from tracking sun to thereby affect the efficiency that photovoltaic panel converts solar energy into electric energy, when electric push rod device fails, the hydraulic rod in hydraulic cylinder is pushed by the downward overturning of supporting plate, the bottom limit block of hydraulic rod will limit T-shaped block, reduce the flow speed of liquid between hydraulic cylinder and oil cylinder, play the role of deceleration.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic equipment technology, specifically to a photovoltaic device with adjustable tilt angle. Background Technology

[0002] Photovoltaic power generation is a technology that directly converts sunlight into electrical energy through photovoltaic cells. Photovoltaic cells are usually made of semiconductor materials and can generate current when they receive sunlight. The efficiency of a photovoltaic system depends on the angle of incidence of sunlight, which varies with time and seasons.

[0003] Patent publication number CN221614885U discloses a tilt-adjustable photovoltaic device bracket, including a bracket body. An adjustment box is fixedly connected to the bottom inner side of the bracket body. A motor is fixedly installed on the left side of the adjustment box's inner cavity. A first rotating rod is fixedly connected to the output end of the motor. A main gear is fixedly connected to one side of the first rotating rod. A secondary gear meshes with the surface of the main gear. A second rotating rod is fixedly connected to the inner cavity of the secondary gear. A support plate is fixedly connected to the top of the second rotating rod. An L-shaped plate is fixedly connected to the top of the support plate. This patent, through the arrangement of the motor, first rotating rod, main gear, secondary gear, second rotating rod, and support plate, solves the problem that existing brackets, although adjustable in tilt angle, lack rotation functionality and cannot be adjusted according to the direction of sunlight, resulting in a significant reduction in the efficiency of solar energy conversion into electrical energy and decreasing the practicality of the device.

[0004] However, the following problems still exist when the tilt-adjustable photovoltaic equipment is working: the motor may malfunction during the tilting process of the photovoltaic panel, causing the push rod to stop moving. Under the action of gravity, the photovoltaic panel will quickly flip to a horizontal position, and at the same time, the photovoltaic panel will collide with the base frame, resulting in damage to the photovoltaic panel and affecting its normal use. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a photovoltaic device with an adjustable tilt angle, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable tilt photovoltaic device, comprising a base frame and a tilting frame, wherein the tilting frame is rotatably mounted on the top of the base frame, and a clamping device is fixedly mounted on the top of the tilting frame. The top of the clamping device is provided with two protective covers and a cleaning device. An electric push rod device is provided on the left side of the clamping device. A switch is provided at the front of the base frame, and a deceleration device is provided at the front of the clamping device. The deceleration device includes a fixed block, a hydraulic rod, a hydraulic cylinder, a piston plate, a connecting block, an oil cylinder, a lower pressure plate, a spring limit block, and a T-shaped block. The fixed block is fixedly mounted on the front of the tilting frame, and an arc plate is fixedly mounted on the bottom of the fixed block. The hydraulic rod is fixedly mounted on the bottom of the fixed block. The connecting block is fixedly installed at the front of the base frame, the hydraulic cylinder is fixedly installed at the front end of the connecting block, the hydraulic rod slides through the interior of the hydraulic cylinder, the piston plate is fixedly installed at the end of the hydraulic rod away from the fixed block, the oil cylinder is located at the front of the base frame, the oil cylinder and the hydraulic cylinder are connected by a hydraulic pipe, the lower pressure plate is slidably installed on the inner wall of the oil cylinder, one end of the spring is fixedly installed on the bottom of the lower pressure plate, the other end of the spring is fixedly installed on the bottom of the inner wall of the oil cylinder, the limiting block is fixedly installed on the bottom of the piston plate, and the T-shaped block is slidably installed on the bottom of the inner wall of the hydraulic cylinder. When the electric push rod device is running, it will push the flipping frame to flip upwards, the flipping frame will flip the pallet, and the pallet will flip the photovoltaic panel.

[0007] According to the above technical solution, the top of the T-shaped block is set as an inclined surface, the limiting block is in contact with the top inclined surface of the T-shaped block, and a spring is provided between the left side of the T-shaped block and the inner wall of the hydraulic cylinder.

[0008] According to the above technical solution, the clamping device includes a tray, a threaded rod, a clamping plate, a triangular rod, an alarm, a pressing rod, an insulating sheet, a limiting rod, and a U-shaped plate. The tray is fixedly installed on the top of the flipping frame. The threaded rod rotatably passes through the front of the tray. The clamping plate is slidably installed in the top groove of the tray and is threadedly connected to the threaded rod. The triangular rod slidably passes through the interior of the tray. The alarm is fixedly installed on the rear of the tray. The pressing rod slidably passes through the top of the alarm. The insulating sheet is fixedly installed on the left side of the triangular rod. The limiting rod is fixedly installed on the top of the triangular rod. The U-shaped plate is fixedly installed on the top of the inner wall of the alarm. In case of abnormal disassembly, rotating the threaded rod moves the clamping plate away from the photovoltaic panel. Under the elastic action of the second spring, the insulating sheet will detach from the alarm, thereby triggering the alarm.

[0009] According to the above technical solution, the top of the triangular rod is set as an inclined surface, and the top inclined surface of the triangular rod contacts the photovoltaic panel during installation. A first spring is provided between the pressure rod and the U-shaped plate, and a second spring is provided on the left side of the triangular rod.

[0010] According to the above technical solution, the cleaning device includes a motor, a roller, a nozzle, a support plate, a guide tube, a water tank, two baffles, a baffle pipe, two U-shaped rods, a gear, a rack, a support frame, and a rotating rod. The support frame is slidably mounted on the right side of the support plate. The motor is fixedly mounted on the top of the support frame, and the switch is electrically connected to the motor. The rotating rod is fixedly mounted on the output end of the motor. The gear is fixedly mounted on the circumferential surface of the rotating rod. The rack is fixedly mounted inside the support plate, and the gear meshes with the rack. The roller is fixedly mounted on the circumferential surface of the rotating rod. The nozzle is fixedly mounted in a groove on the surface of the roller. The support plate is fixedly mounted on the left side of the support plate. The guide tube is fixedly mounted on the top of the support plate. The water tank is fixedly mounted on the top of the guide tube. The two baffles are fixedly mounted on the top of the support plate. The baffle pipe is fixedly mounted on the bottom of the water tank. The two U-shaped rods are fixedly mounted on the top of the support plate. The roller and the guide tube are connected by a water pipe. When the baffle moves, the water in the water tank flows between the guide tube and the baffle pipe, and flows through the water pipe to the nozzle inside the roller. The nozzle intermittently sprays water onto the surface of the photovoltaic panel.

[0011] According to the above technical solution, the two stop rods are fixedly installed on the top of the support plate, and there is a rotating rod between the two stop rods. The rotating rod contacts the two stop rods, and when the rotating rod moves, it will drive the two stop rods to slide, so that the two stop rods drive the support plate to slide on the left side of the clamping device.

[0012] According to the above technical solution, the cleaning device further includes a baffle, an arc-shaped plate, and a square rod. The baffle is fixedly installed on the top of the inner wall of the baffle tube, the arc-shaped plate is fixedly installed on the end of the rotating rod near the water storage tank, the square rod slides through the interior of the baffle tube, and the square rod is fixedly connected to the arc-shaped plate.

[0013] According to the above technical solution, one end of the square rod is set as an arc surface, the square rod contacts the arc surface of the arc plate, a No. 3 spring piece is provided between the inner wall of the baffle tube and the baffle, the surface of the arc plate has several protrusions, when the arc plate rotates, the protrusions contact the switch, and since the switch is electrically connected to the motor, the motor runs when it is flipped.

[0014] This invention provides a photovoltaic device with an adjustable tilt angle. It has the following beneficial effects:

[0015] (1) The invention can adjust the tilt angle of the flipping frame through the electric push rod device to prevent the photovoltaic panel from failing to track the sun and thus affecting the efficiency of the photovoltaic panel in converting solar energy into electrical energy. When the electric push rod device malfunctions, the tray will flip downward quickly and push the hydraulic rod in the hydraulic cylinder. The bottom limit block of the hydraulic rod will limit the T-shaped block, reduce the flow speed of the liquid between the hydraulic cylinder and the oil cylinder, and play a deceleration role. This prevents the photovoltaic panel from colliding with the base frame due to the rapid downward flipping caused by the motor failure, thereby damaging the photovoltaic panel and affecting its use.

[0016] (2) The invention can fix the photovoltaic panel by means of a clamping device, preventing the photovoltaic panel from falling out of the tray during the flipping process, which would cause damage to the photovoltaic panel. By setting an alarm, the limit rod can release the limit on the insulating sheet during abnormal disassembly of the photovoltaic panel, the insulating sheet will separate from the inside of the alarm, and the alarm will sound, preventing the photovoltaic panel from being stolen, thereby improving the safety of the photovoltaic equipment.

[0017] (3) In this invention, when the arc plate rotates, the protrusion on the arc plate will contact the switch, so that the motor runs and drives the roller to roll, which can clean the dust on the surface of the photovoltaic panel and prevent the excessive accumulation of dust on the surface of the photovoltaic panel from affecting its use. When the rotating rod rotates, the arc plate will intermittently collide with the square rod in the baffle tube, causing the baffle to open intermittently. The roller will drive the nozzle inside to spray water on the photovoltaic panel intermittently, which improves the cleaning effect of the photovoltaic panel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of part C;

[0020] Figure 3 This is a schematic diagram showing the position and structure of the hydraulic cylinder and oil cylinder of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A;

[0022] Figure 5 This is a schematic diagram of the position structure of the pallet and roller of the present invention;

[0023] Figure 6 This is a schematic diagram showing the position and structure of the triangular rod and alarm device of the present invention;

[0024] Figure 7 This is a schematic diagram of the location and structure of the water storage tank and the baffle pipe of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged structural diagram of section B.

[0026] In the diagram: 1. Base frame; 2. Tilting frame; 3. Clamping device; 301. Support plate; 302. Threaded rod; 303. Clamping plate; 304. Triangular rod; 305. Alarm; 306. Pressing rod; 307. Insulating sheet; 308. Limiting rod; 309. U-shaped plate; 4. Protective cover; 5. Electric push rod device; 6. Arc plate; 601. Fixing block; 602. Hydraulic rod; 603. Hydraulic cylinder; 604. Piston plate; 605. Connecting block; 606. Oil 607. Cylinder; 608. Lower pressure plate; 609. Spring; 610. Limit block; 711. T-shaped block; 72. Switch; 701. Motor; 702. Roller; 703. Nozzle; 704. Support plate; 705. Conduit; 706. Water tank; 707. Stop bar; 708. Stop pipe; 709. Baffle; 710. Arc plate; 711. Square rod; 712. U-shaped rod; 713. Gear; 714. Rack; 715. Support frame; 716. Rotating rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-8An adjustable tilt photovoltaic device includes a base frame 1 and a tilting frame 2. The tilting frame 2 is rotatably mounted on the top of the base frame 1. A clamping device 3 is fixedly mounted on the top of the tilting frame 2. Two protective covers 4 and a cleaning device are provided on the top of the clamping device 3. An electric push rod device 5 is provided on the left side of the clamping device 3. A switch 7 is provided at the front of the base frame 1. A deceleration device is provided at the front of the clamping device 3. The deceleration device includes a fixing block 601, a hydraulic rod 602, a hydraulic cylinder 603, a piston plate 604, a connecting block 605, an oil cylinder 606, a lower pressure plate 607, a spring 608, a limiting block 609, and a T-shaped block 610. The fixing block 601 is fixedly mounted on the front of the tilting frame 2. An arc plate 6 is fixedly mounted on the bottom of the fixing block 601. The hydraulic rod 602 is fixed... A fixed block 601 is installed at the bottom of the base frame 1, a connecting block 605 is fixedly installed at the front of the base frame 1, a hydraulic cylinder 603 is fixedly installed at the front end of the connecting block 605, a hydraulic rod 602 slides through the interior of the hydraulic cylinder 603, a piston plate 604 is fixedly installed at the end of the hydraulic rod 602 away from the fixed block 601, an oil cylinder 606 is located at the front of the base frame 1, and the oil cylinder 606 and the hydraulic cylinder 603 are connected by a hydraulic pipe, a lower pressure plate 607 is slidably installed on the inner wall of the oil cylinder 606, one end of a spring piece 608 is fixedly installed on the bottom of the lower pressure plate 607, the other end of the spring piece 608 is fixedly installed on the bottom of the inner wall of the oil cylinder 606, a limit block 609 is fixedly installed on the bottom of the piston plate 604, and a T-shaped block 610 is slidably installed on the bottom of the inner wall of the hydraulic cylinder 603. When the electric push rod device 5 malfunctions, the pallet 301 flips downwards quickly, which pushes the hydraulic rod 602 in the hydraulic cylinder 603. The bottom limit block 609 of the hydraulic rod 602 limits the T-shaped block 610, reducing the flow speed of the liquid between the hydraulic cylinder 603 and the oil cylinder 606, thus slowing down the flow.

[0029] The top of the T-block 610 is set as an inclined surface. The limiting block 609 contacts the top inclined surface of the T-block 610. A spring is provided between the left side of the T-block 610 and the inner wall of the hydraulic cylinder 603. When the limiting block 609 moves downward, it will push the T-block 610 to move to the right, making the opening smaller and thus reducing the flow rate of the liquid.

[0030] The clamping device 3 includes a support plate 301, a threaded rod 302, a clamping plate 303, a triangular rod 304, an alarm 305, a pressing rod 306, an insulating sheet 307, a limiting rod 308, and a U-shaped plate 309. The support plate 301 is fixedly installed on the top of the flipping frame 2. The threaded rod 302 rotatably passes through the front of the support plate 301. The clamping plate 303 is slidably installed in the top groove of the support plate 301 and is threadedly connected to the threaded rod 302. The triangular rod 304 slides through the interior of the support plate 301. The alarm 305 is fixedly installed. Installed at the rear of the support plate 301, the pressure rod 306 slides through the top of the alarm 305, the insulating sheet 307 is fixedly installed on the left side of the triangular rod 304, the limiting rod 308 is fixedly installed on the top of the triangular rod 304, and the U-shaped plate 309 is fixedly installed on the top of the inner wall of the alarm 305. Through the setting of the alarm 305, it can be realized that during the abnormal disassembly of the photovoltaic panel, the limiting rod 308 will release the limiting of the insulating sheet 307, the insulating sheet 307 will detach from the inside of the alarm 305, and the alarm 305 will sound.

[0031] The top of the triangular rod 304 is set as an inclined surface. When the photovoltaic panel is installed, the top inclined surface of the triangular rod 304 contacts the photovoltaic panel. A first spring is set between the pressure rod 306 and the U-shaped plate 309. A second spring is set on the left side of the triangular rod 304, so that during abnormal disassembly of the photovoltaic panel, the insulating sheet 307 is disengaged from the alarm 305 through the second spring.

[0032] The cleaning device includes a motor 701, a roller 702, a nozzle 703, a support plate 704, a conduit 705, a water tank 706, two baffles 707, a baffle pipe 708, two U-shaped rods 712, a gear 713, a rack 714, a support frame 715, and a rotating rod 716. The support frame 715 is slidably mounted on the right side of the support plate 301. The motor 701 is fixedly mounted on the top of the support frame 715. A switch 7 is electrically connected to the motor 701. The rotating rod 716 is fixedly mounted on the output end of the motor 701. The gear 713 is fixedly mounted on the circumferential surface of the rotating rod 716. The rack 714 is fixedly mounted on the support plate 301. Inside, gear 713 meshes with rack 714, roller 702 is fixedly installed on the circumferential surface of rotating rod 716, nozzle 703 is fixedly installed in the groove on the surface of roller 702, support plate 704 is fixedly installed on the left side of support plate 301, conduit 705 is fixedly installed on the top of support plate 704, water tank 706 is fixedly installed on the top of conduit 705, two baffles 707 are fixedly installed on the top of support plate 704, baffle 708 is fixedly installed on the bottom of water tank 706, two U-shaped rods 712 are fixedly installed on the top of support plate 301, and roller 702 and conduit 705 are connected by water pipe.

[0033] Two stop levers 707 are fixedly installed on the top of the support plate 704. There is a rotating rod 716 between the two stop levers 707. The rotating rod 716 contacts the two stop levers 707. When the rotating rod 716 moves, it will drive the two stop levers 707 to slide, so that the two stop levers 707 drive the support plate 704 to slide on the left side of the clamping device 3.

[0034] The cleaning device also includes a baffle 709, an arc-shaped plate 710, and a square rod 711. The baffle 709 is fixedly installed on the top of the inner wall of the baffle tube 708. The arc-shaped plate 710 is fixedly installed on one end of the rotating rod 716 near the water storage tank 706. The square rod 711 slides through the interior of the baffle tube 708 and is fixedly connected to the arc-shaped plate 710. When the rotating rod 712 rotates, the arc-shaped plate 710 will intermittently collide with the square rod 711 in the baffle tube 708, causing the baffle 709 to open intermittently. The roller 702 will drive the nozzle 703 inside it to intermittently spray water on the photovoltaic panel, improving the cleaning effect on the photovoltaic panel.

[0035] One end of the square rod 711 is set as an arc surface. The square rod 711 contacts the arc surface of the arc plate 710. A No. 3 spring piece is provided between the inner wall of the baffle tube 708 and the baffle 709. The surface of the arc plate 6 has several protrusions. When the arc plate 6 rotates, the protrusions contact the switch 7. Since the switch 7 is electrically connected to the motor 701, the motor 701 runs when it is flipped.

[0036] During operation: When the electric push rod device 5 is running, it pushes the tilting frame 2 upward to tilt. The tilting frame 2 tilts the support plate 301, which in turn tilts the photovoltaic panel. When the electric push rod device 5 malfunctions, the photovoltaic panel tilts downward under gravity. This tilting of the photovoltaic panel tilts the support plate 301, which in turn tilts the tilting frame 2. The tilting frame 2 tilts the fixed block 601 downward, which pushes the hydraulic rod 602 downward. The downward movement of the hydraulic rod 602 pushes the piston plate 604 downward... As the piston plate 604 moves downwards, the fluid in the hydraulic cylinder 603 enters the oil cylinder 606 through the hydraulic pipe. When the fluid enters the oil cylinder 606, it pushes the lower pressure plate 607 downwards. When the lower pressure plate 607 moves downwards, it pushes the spring 608 downwards. When the piston plate 604 moves downwards to a certain position, it drives the limit block 609 downwards. When the limit block 609 moves, it limits the T-shaped block 610, causing the T-shaped block 610 to move to the right. When the T-shaped block 610 moves to the right, the speed at which the fluid enters the oil cylinder 606 decreases, thereby achieving a deceleration effect.

[0037] When installing the photovoltaic panel, place it into the support plate 301. The photovoltaic panel will contact the inclined surface of the triangular rod 304, pushing the triangular rod 304 towards the alarm 305. As the triangular rod 304 moves, it will push the insulating sheet 307 to move, inserting it into the alarm 305 and disabling it. Rotating the threaded rod 302 will push the clamping plate 303 towards the photovoltaic panel, clamping it. For normal disassembly of the photovoltaic panel, push it downwards. When the pressure rod 306 moves downward, it will be limited by the limiting rod 308 at the top of the triangular rod 304, preventing the insulating sheet 307 from detaching from the inside of the alarm 305. In case of abnormal disassembly, rotating the threaded rod 302 will move the clamping plate 303 away from the photovoltaic panel. Under the elastic action of the second spring, the insulating sheet 307 will detach from the alarm 305, thereby triggering the alarm 305. The installation of the alarm 305 effectively prevents the theft of photovoltaic panels, thereby improving the safety of photovoltaic equipment.

[0038] When the flipping frame 2 flips upward, it drives the fixing block 601 to flip upward as well. The flipping of the fixing block 601 drives the arc plate 6 to flip. When the arc plate 6 flips, the protrusion on the arc plate 6 contacts the switch 7. Since the switch 7 is electrically connected to the motor 701, the motor 701 starts running. The running motor 701 drives the rotating rod 716 to rotate, which in turn drives the roller 702 to rotate. As the roller 702 rotates, under the action of the gear 713 and rack 714, the roller 702 rolls on the surface of the photovoltaic panel, cleaning the panel. The rotation of the rotating rod 716 also pushes the stop lever 707 to move. When the device moves, it will cause the support plate 704 to move. When the support plate 704 moves, it will slide on the left side of the support plate 301. When the rotating rod 716 rotates, it will also cause the arc plate 710 to rotate. When the arc plate 710 rotates, it will intermittently contact the square rod 711. The arc plate 710 will push the square rod 711 to move to the left. When the square rod 711 moves, it will push the baffle 709 to move. When the baffle 709 moves, the water in the water tank 706 will flow between the conduit 705 and the baffle pipe 708, and flow through the water pipe to the spray head 703 in the roller 702. The spray head 703 will intermittently spray water on the surface of the photovoltaic panel, which improves the cleaning effect of the photovoltaic panel.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tilt-adjustable photovoltaic device, comprising a base frame (1) and a turnover frame (2), the turnover frame (2) being rotatably mounted on the top of the base frame (1), characterized in that: The top of the turnover frame (2) is fixedly installed with a clamping device (3), the top of the clamping device (3) is provided with two protective covers (4) and a cleaning device, the left side of the clamping device (3) is provided with an electric push rod device (5), the front of the chassis (1) is provided with a switch (7), the front of the clamping device (3) is provided with a speed reducer, the speed reducer comprises a fixed block (601), a hydraulic rod (602), a hydraulic cylinder (603), a piston plate (604), a connecting block (605), an oil cylinder (606), a pressing plate (607), an elastic sheet (608), a limiting block (609) and a T-shaped block (610), the fixed block (601) is fixedly installed at the front of the turnover frame (2), the bottom of the fixed block (601) is fixedly installed with an arc plate (6), the hydraulic rod (602) is fixedly installed at the bottom of the fixed block (601), the connecting block (605) is fixedly installed at the front of the chassis (1), the hydraulic cylinder (603) is fixedly installed at the front end of the connecting block (605), the hydraulic rod (602) slidably penetrates through the inside of the hydraulic cylinder (603), the piston plate (604) is fixedly installed at the end of the hydraulic rod (602) away from the fixed block (601), the oil cylinder (606) is arranged at the front of the chassis (1), the oil cylinder (606) and the hydraulic cylinder (603) are communicated through a hydraulic pipe, the pressing plate (607) is slidably installed on the inner wall of the oil cylinder (606), one end of the elastic sheet (608) is fixedly installed at the bottom of the pressing plate (607), the other end of the elastic sheet (608) is fixedly installed at the bottom of the inner wall of the oil cylinder (606), the limiting block (609) is fixedly installed at the bottom of the piston plate (604), and the T-shaped block (610) is slidably installed at the bottom of the inner wall of the hydraulic cylinder (603); The clamping device (3) comprises a supporting plate (301), a threaded rod (302), a clamping plate (303), a triangular rod (304), an alarm (305), a pressing rod (306), an insulating sheet (307), a limiting rod (308) and a U-shaped plate (309), the supporting plate (301) is fixedly installed at the top of the turnover frame (2), the threaded rod (302) is rotatably penetrated through the front of the supporting plate (301), the clamping plate (303) is slidably installed in the groove at the top of the supporting plate (301), the clamping plate (303) is in threaded connection with the threaded rod (302), the triangular rod (304) slidably penetrates through the inside of the supporting plate (301), the alarm (305) is fixedly installed at the rear of the supporting plate (301), the pressing rod (306) slidably penetrates through the top of the alarm (305), the insulating sheet (307) is fixedly installed at the left side of the triangular rod (304), the limiting rod (308) is fixedly installed at the top of the triangular rod (304), and the U-shaped plate (309) is fixedly installed at the top of the inner wall of the alarm (305). The cleaning device comprises a motor (701), a roller (702), a spray head (703), a support plate (704), a conduit (705), a water storage tank (706), two blocking rods (707), a blocking pipe (708), two U-shaped rods (712), a gear (713), a rack (714), a support frame (715) and a rotating rod (716), the support frame (715) is slidingly installed at the right side of the supporting plate (301), the motor (701) is fixedly installed at the top of the support frame (715), the switch (7) is electrically connected with the motor (701), the rotating rod (716) is fixedly installed at the output end of the motor (701), the gear (713) is fixedly installed at the circumferential surface of the rotating rod (716), the rack (714) is fixedly installed at the inside of the supporting plate (301), the gear (713) is in mesh with the rack (714), the roller (702) is fixedly installed at the circumferential surface of the rotating rod (716), the spray head (703) is fixedly installed in the surface groove of the roller (702), the support plate (704) is fixedly installed at the left side of the supporting plate (301), the conduit (705) is fixedly installed at the top of the support plate (704), the water storage tank (706) is fixedly installed at the top of the conduit (705), the two blocking rods (707) are fixedly installed at the top of the support plate (704), the blocking pipe (708) is fixedly installed at the bottom of the water storage tank (706), the two U-shaped rods (712) are fixedly installed at the top of the supporting plate (301), and the roller (702) and the conduit (705) are communicated through a water pipe.

2. A tilt adjustable photovoltaic apparatus according to claim 1, wherein: The top of the T-shaped block (610) is provided as an inclined surface, the limiting block (609) is in contact with the top inclined surface of the T-shaped block (610), and a spring is arranged between the left side of the T-shaped block (610) and the inner wall of the hydraulic cylinder (603).

3. A tilt adjustable photovoltaic apparatus according to claim 1, wherein: The top of the triangular rod (304) is provided as an inclined surface, the top inclined surface of the triangular rod (304) is in contact during installation of the photovoltaic panel, a first elastic sheet is arranged between the pressing rod (306) and the U-shaped plate (309), and a second elastic sheet is arranged at the left side of the triangular rod (304).

4. A tilt adjustable photovoltaic apparatus according to claim 1, wherein: The two blocking rods (707) are fixedly installed at the top of the support plate (704), and a rotating rod (716) is arranged between the two blocking rods (707) and in contact with the two blocking rods (707).

5. A tilt adjustable photovoltaic apparatus according to claim 4, wherein: The cleaning device further comprises a baffle (709), an arc-shaped plate (710) and a square rod (711), the baffle (709) is fixedly installed at the inner wall top of the blocking pipe (708), the arc-shaped plate (710) is fixedly installed at one end of the rotating rod (716) close to the water storage tank (706), the square rod (711) slidingly penetrates the inside of the blocking pipe (708), and the square rod (711) is fixedly connected with the arc-shaped plate (710).

6. A tilt angle adjustable photovoltaic device according to claim 5, wherein: One end of the square rod (711) is provided as a curved surface, the square rod (711) is in contact with the curved surface of the arc-shaped plate (710), a third elastic sheet is arranged between the inner wall of the blocking pipe (708) and the blocking plate (709), the surface of the arc plate (6) has a plurality of protrusions, and the protrusions are in contact with the switch (7) when the arc plate (6) rotates.

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