A photovoltaic support with adjustable angle for photovoltaic power generation

Abstract

The present invention discloses a photovoltaic support with adjustable angle for photovoltaic power generation, which includes a support component and a cleaning component. The support component includes a support leg, a downward pressure wing, a force increasing rod, a rotating frame, a reinforcing rod, a worm, a downward pressure screw rod, and a rotating shaft. A thread connection is provided between the downward pressure nut and the downward pressure screw rod. The downward pressure screw rod is fixedly connected to the center of the inner bottom of the support leg. The upper end of the rotating shaft is fixedly connected to the worm, and the rotating shaft is rotatably connected to the downward pressure screw rod. The downward pressure screw rod and the downward pressure nut are slidably connected through a synchronous pin. The reinforcing rod is inclined and slidably connected to the support leg, and its upper end is in contact with the downward pressure nut. The downward pressure wing is horizontally arranged at the upper end of the rotating frame. By setting the support leg and the downward pressure wing, the present invention enables the device to adapt to a strong wind environment and can reinforce the device when bearing strong wind.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and particularly to a photovoltaic bracket with adjustable angle for photovoltaic power generation. Background Art

[0002] Photovoltaic power generation is a technology that directly converts solar radiation energy into electrical energy by using the photovoltaic effect of semiconductor materials, and a photovoltaic bracket is a device used to place, install, and fix photovoltaic panels.

[0003] For the considerations of power generation efficiency, site resources, and wind prevention and sand fixation, most photovoltaic panels are installed in relatively flat areas such as gobi deserts. Due to the flat terrain and no surrounding obstacles, strong winds are likely to occur in such areas. However, the wind resistance performance of existing such devices is not ideal. For example, a photovoltaic bracket with adjustable angle for photovoltaic power generation disclosed in Chinese Patent Publication No. "CN116938086A", the bottom of the rotating leg of this device is rectangular, and this contour shape makes it difficult to nail the rotating leg of this device into the ground, which reduces the wind resistance performance of this device. When installed in places such as gobi deserts, it will cause this device to be more likely to tip over, thereby affecting photovoltaic power generation. Moreover, when this device is installed on the ground, the photovoltaic panel forms a certain angle with the ground. When the wind blows towards this device, the wind will generate a force on the photovoltaic panel, and this force will ultimately act on the rotating leg of this device. To sum up, this device is difficult to adapt to a strong wind environment due to the above two defects. Accordingly, this application proposes a photovoltaic bracket with adjustable angle for photovoltaic power generation. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a photovoltaic bracket with adjustable angle for photovoltaic power generation.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A photovoltaic bracket with adjustable angle for photovoltaic power generation, including a support assembly and a cleaning assembly. The support assembly includes a support foot, a downward pressure wing, a force increasing rod, a rotating frame, a reinforcing rod, a worm, a downward pressure screw, and a rotating shaft. A thread connection is provided between the downward pressure nut and the downward pressure screw. The downward pressure screw is fixedly connected to the center of the inner bottom of the support foot. The upper end of the rotating shaft is fixedly connected to the worm, and the rotating shaft is rotatably connected to the downward pressure screw. The downward pressure screw and the downward pressure nut are slidably connected through a synchronous pin. The reinforcing rod is inclined and slidably connected to the support foot, and its upper end is in contact with the downward pressure nut. The downward pressure wing is horizontally arranged at the upper end of the rotating frame;

[0007] The support component is used for supporting and strengthening the entire photovoltaic bracket. After the feet of the entire photovoltaic bracket are inserted into the ground, the rotating shaft can be rotated through the force-applying rod, and then the synchronous pin drives the pressing nut to rotate, and the reinforcing rod is pressed into the surrounding soil, so as to increase the contact area between the feet and the soil, making the entire photovoltaic bracket less likely to fall in a strong wind environment;

[0008] At the same time, the downward pressure wing will also generate a downward pressure when the wind blows towards the entire photovoltaic bracket, so that the entire photovoltaic bracket will receive a downward pressure when blown by the wind, and then the entire photovoltaic bracket will be continuously strengthened when there is wind on the front or back.

[0009] Preferably, the cleaning component includes a mounting frame, a sail, a spring box, a first gear, a second gear, a limiting block, a transmission belt, a pulley, a cleaning block, a sliding plate, a spring, a spring rod, a slider, a power storage shaft, and a spring. The limiting block is slidably connected to the sliding plate, and the spring is arranged between the limiting block and the sliding plate. The first gear and the second gear are meshed with each other. The second gear is fixedly connected to the pulley. The transmission belt is matched with the two pulleys. The cleaning block is fixedly connected to the transmission belt;

[0010] The cleaning mechanism is used for cleaning the photovoltaic panels inside the entire photovoltaic bracket. When the wind blows towards the sail, the sail will drive the power storage shaft to rotate. At the same time, the first gear and the second gear will rotate, and the spring will store energy under the action of the sail. The limiting block can achieve one-way limiting, so as to prevent the spring from releasing the stored energy, but it will not prevent the spring from storing energy.

[0011] Preferably, the spring rod is fixedly connected to the mounting frame, the spring box is fixedly connected to the mounting frame, the sliding plate is slidably connected to the mounting frame, and the second gear and the pulley are rotatably connected to the mounting frame.

[0012] Preferably, a worm gear is fixedly connected to the rear side wall of the mounting frame. The center of the worm gear is fixedly connected to an angle shaft. The angle shaft is rotatably connected to a rotating frame. The worm gear is meshed with a worm.

[0013] Preferably, when the downward pressure wing is installed, the convex side should face downwards. The force-applying rod is inserted into the rotating shaft. The maximum diameter of the pressing nut is the same as the inner diameter of the foot. A clamping plate is arranged on the side of the mounting frame, and a fixing bolt is threadedly connected to the side wall of the clamping plate.

[0014] Preferably, one end of the power storage shaft spring is fixedly connected, and the other end of the spring is attached to the spring box by friction.

[0015] The present invention has the following beneficial effects:

[0016] 1. By setting the outriggers, the device can adapt to strong wind environments, avoiding the problem of the device tipping over due to strong wind environments. When the device is installed, a force multiplier rod can be used to extend the reinforcement rod from the outrigger, so that the part of the outrigger below the ground forms a structure similar to barbs, which can increase the area of the part of the outrigger below the ground and make the outrigger more secure.

[0017] 2. By setting the downward pressure wings, when strong wind acts on the front or back of the device, the device can be reinforced. The principle is the same as the principle of an airplane wing generating lift, but in this device, the lower part of the downward pressure wing is a low-pressure area, while the upper part is a high-pressure area, that is, the direction of the lift is reversed. Therefore, when the wind blows over the device, the downward pressure wing will generate an upward pressure on the outrigger, pressing the outrigger downward, thereby completing the fastening.

[0018] 3. By setting the cleaning component, the device can automatically clean the dust on the photovoltaic panel, which reduces the labor intensity and at the same time avoids the problem that dust adhering to the surface of the photovoltaic panel affects the power generation efficiency, because when dust adheres to the surface of the photovoltaic panel, it will block a part of the sunlight, thereby affecting the power generation efficiency.

[0019] 4. By setting the worm and worm gear, the angle of the photovoltaic panel will automatically change when the device is installed, which makes the installation and disassembly of the device easier and more convenient. At the same time, when disassembling, the angle of the photovoltaic panel will automatically change to a position such as Figure 1 . BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of an angle-adjustable photovoltaic support for photovoltaic power generation proposed by the present invention;

[0021] Figure 2 is Figure 1 an enlarged view of part A;

[0022] Figure 3 is Figure 1 an enlarged view of part B;

[0023] Figure 4 is a schematic diagram of the back structure of an angle-adjustable photovoltaic support device for photovoltaic power generation proposed by the present invention;

[0024] Figure 5 is a schematic diagram of the internal structure of the outrigger in an angle-adjustable photovoltaic support for photovoltaic power generation proposed by the present invention;

[0025] Figure 6 is a schematic diagram of the structure of the spring box in an angle-adjustable photovoltaic support for photovoltaic power generation proposed by the present invention;

[0026] Figure 7 is Figure 6Enlarged view at C.

[0027] In the figure: 1 mounting bracket, 2 clamping plate, 3 fixing bolt, 4 support leg, 5 reinforcing rod, 6 rotating bracket, 7 downward pressing wing, 8 spring box, 9 sail, 10 first gear, 11 second gear, 12 transmission belt, 13 pulley, 14 spring rod, 15 limit block, 16 sliding plate, 17 spring, 18 slider, 19 worm, 20 worm gear, 21 rotating shaft, 22 synchronization pin, 23 downward pressing nut, 24 cleaning block, 25 downward pressing screw rod, 26 force increasing rod, 27 energy storage shaft, 28 spring, 29 angle shaft. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Embodiment 1:

[0030] Refer to Figures 4 - 5 , a photovoltaic bracket with adjustable angle for photovoltaic power generation, including a support assembly and a cleaning assembly.

[0031] The downward pressing nut 23 is threadedly connected to the downward pressing screw rod 25. The downward pressing screw rod 25 is fixedly connected to the center of the inner bottom of the support leg 4. The upper end of the rotating shaft 21 is fixedly connected to the worm 19, and the rotating shaft 21 is rotatably connected to the downward pressing screw rod 25;

[0032] The downward pressing screw rod 25 and the downward pressing nut 23 are slidably connected through a plurality of synchronization pins 22. The common action of the plurality of synchronization pins 22 can ensure the strength of the synchronization pins 22 and avoid the fracture of the synchronization pins 22. The reinforcing rod 5 is inclined and slidably connected to the support leg 4, and its upper end is in contact with the downward pressing nut 23. The force increasing rod 26 is inserted on the rotating shaft 21, and the force increasing rod 26 is used to increase the torque. In this way, the downward pressing nut 23 can be easily rotated even when it is inside the support leg 4;

[0033] The support assembly is used for the support and reinforcement of the entire photovoltaic bracket. After the support legs 4 of the entire photovoltaic bracket are inserted into the ground, the rotating shaft 21 can be rotated through the force increasing rod 26, and then the synchronization pins 22 drive the downward pressing nut 23 to rotate together. The downward pressing nut 23 is in the shape of an inverted cone, and the diameter of the largest part of the cone is the same as the inner diameter of the support leg 4. This allows the downward pressing nut 23 to press the reinforcing rod 5 out of the support leg 4 and nail it under the ground when pressing down, playing a role in increasing the contact area and making the entire photovoltaic bracket less likely to fall when facing a windy environment.

[0034] In this embodiment, for details, refer to Figure 5, the rotating shaft 21 is slidably connected to the synchronization pin 22, and the rotating shaft 21 is rotatably connected to the downward pressing screw 25. When the rotating shaft 21 is rotated by the force applying rod 26, multiple synchronization pins 22 will transmit the torque to the downward pressing nut 23 and cause it to rotate synchronously with the rotating shaft 21. At the same time, the inner diameter of the downward pressing nut 23 is the same as the inner diameter of the support leg 4. When the downward pressing nut 23 presses downward, it will also press the reinforcing rod 5 into the soil around the support leg 4, thereby increasing the contact area between the support leg 4 and the soil and forming a contour similar to barbs, making the entire photovoltaic support more difficult to be pulled out from the ground, thereby obtaining better wind resistance performance.

[0035] Embodiment Two:

[0036] Different from Embodiment One, referring to Figure 1 and Figure 4 , this embodiment also has the following further content:

[0037] The downward pressing wing 7 is horizontally arranged at the upper end of the rotating frame 6, and the convex side of the downward pressing wing 7 should be installed downward during installation;

[0038] The downward pressing wing 7 is used to reinforce the support leg 4. When the wind blows towards the entire photovoltaic support, the downward pressing wing 7 will generate a downward pressure on the support leg 4, so that the support leg 4 will always be reinforced when there is wind on the front or back of the entire photovoltaic support. The reason why the convex side of the downward pressing wing 7 should be installed downward during installation is related to aerodynamics and Bernoulli's theorem. That is, when an airplane flies forward, the air flows over the wing. Since the curvature of the upper surface of the wing is larger than that of the lower surface, the speed of the air flowing over the upper surface is faster than that of the lower surface, resulting in the pressure on the upper surface being lower than that on the lower surface. This pressure difference generates an upward force on the upper and lower surfaces of the wing, that is, lift;

[0039] In the entire photovoltaic support, the direction of the downward pressing wing 7 is opposite, that is, the direction of the lift is reversed, so the original lift becomes a pressure on the support leg 4 in the entire photovoltaic support.

[0040] Embodiment Three:

[0041] Referring to Figure 1 - Figure 3 , compared with Embodiment One and Embodiment Two, in this embodiment:

[0042] The cleaning mechanism is used for cleaning the photovoltaic panels in the entire photovoltaic support. The limiting block 15 is slidably connected to the sliding plate 16, the sliding plate 16 is slidably connected to the mounting frame 1, the second gear 11 and the belt pulley 13 are rotatably connected to the mounting frame 1, the spring rod 14 is fixedly connected to the mounting frame 1, and the spring box 8 is fixedly connected to the mounting frame 1.

[0043] The spring 17 is arranged between the limit block 15 and the slide plate 16. The first gear 10 and the second gear 11 are meshed with each other. The second gear 11 is fixedly connected with the belt pulley 13. The transmission belt 12 is matched with the two belt pulleys 13. The cleaning block 24 is fixedly connected with the transmission belt 12

[0044] The limit block 15 can achieve one-way limit, so as to prevent the spring 28 from releasing the stored energy, but it will not prevent the spring 28 from storing energy. One end of the spring 28 is fixedly connected with the energy storage shaft 27

[0045] The sail 9 fixedly connects one end of the spring 28 and the first gear 10 together through the energy storage shaft 27. When the wind blows towards the sail 9, the sail 9 will drive the energy storage shaft 27 to rotate. At the same time, the first gear 10 and the second gear 11 will rotate, and the spring 28 will store energy under the action of the sail 9

[0046] The other end of the spring 28 is attached to the spring box 8 by friction. When the spring 28 is fully charged and then receives the force from the energy storage shaft 27, it will rotate along the inner wall of the spring box 8. When the end of the spring 28 that is in contact with the spring box 8 moves to the end of the spring rod 14 located inside the spring box 8, the end of the spring rod 14 located inside the spring box 8 will be pushed out of the spring box 8, and then the inclined surface of the slider 18 will push the limit block 15 away, so that it is disengaged from the limit of the second gear 11

[0047] At this time, the energy stored in the spring 28 will be transmitted to the second gear 11 through the first gear 10, and finally drive the belt pulley 13 to rotate. The transmission belt 12 moves, and then the cleaning block 24 moves to clean the dust on the photovoltaic panel

[0048] In this embodiment, for details, refer to Figure 2 and Figure 3 The photovoltaic panel is installed in the mounting frame 1. After the entire photovoltaic support is installed, the mounting frame 1 will form a certain inclination angle with the ground. The front end of the spring rod 14 extends into the spring box 8 and slides with the spring box 8. When the spring 28 is not fully charged, the states of the limit block 15 and the slider 18 are as Figure 2 At this time, the limit block 15 can perform one-way limit, because when the second gear 11 rotates due to the energy storage of the spring 28, the teeth of the second gear 11 will press over the inclined surface on the left side of the limit block 15 and press the limit block 15 downward. Under the action of the spring 17, the limit block 15 will reset because there are no teeth above

[0049] Due to the structural characteristics of the spring 28, two rotational directions of the first gear 10 and the second gear 11 respectively correspond to energy storage and energy release. During energy storage, the teeth of the second gear 11 will press over the inclined surface on the left side of the limit block 15 and press the limit block 15 downward. At this time, the second gear 11 can turn from the left side of the limit block 15 to the right side, which is the rotational direction of the second gear 11 when the spring 28 stores energy. However, the other side of the limit block 15 is a flat surface, so the tooth surface of the second gear 11 will abut against this flat surface, preventing the second gear 11 from turning from the right side of the limit block 15 to the left side, which is the rotational direction of the second gear 11 when the spring 28 releases energy;

[0050] Among the above two rotational directions, the rotational direction of the second gear 11 when the spring 28 releases energy is the rotational direction of the belt pulley 13, that is, the moving direction of the cleaning block 24. The number of teeth of the first gear 10 is more than that of the second gear 11. Therefore, when the rotational speed provided by the spring 28 is transmitted to the second gear 11, the rotational speed will increase, so that the cleaning block 24 can return to the state as shown in Figure 2 after completing one cleaning;

[0051] When the energy stored in the spring 28 is completely output, the pressure of the spring 28 on the spring box 8 will decrease, that is, the frictional force on the spring box 8 will decrease. At this time, the force output by the spring rod 14 can push the spring 28 away, and make the spring 28 slip and misalign at the front end of the spring rod 14. At the same time, the position where the spring 28 abuts against the inner wall of the spring box 8 will also change, and a gap will appear between the spring 28 and the inner wall of the spring box 8, and the front end of the spring rod 14 is located within this gap;

[0052] At this time, the slider 18 is reset under the action of the spring rod 14, and the slide plate 16 will be reset under the action of gravity, and the limit block 15 will restore the limit on the second gear 11 again.

[0053] Embodiment 4:

[0054] Refer to Figure 4 . Compared with Embodiment 1, Embodiment 2 and Embodiment 3, in this embodiment:

[0055] A worm gear 20 is fixedly connected to the rear side wall of the mounting bracket 1, and an angle shaft 29 is fixedly connected to the center of the worm gear 20. In this way, the mounting bracket 1 can be rotationally connected to the rotating bracket 6. The worm gear 20 is meshed with the worm 19. Therefore, when the rotating shaft 21 rotates, the worm 19 will also rotate, and then the worm gear 20 will rotate, driving the angle of the mounting bracket 1 to change;

[0056] A clamping plate 2 is provided on the side of the mounting bracket 1, and a fixing bolt 3 is threadedly connected to the side wall of the clamping plate 2. When the device body needs to install a photovoltaic panel, the fixing bolt 3 is removed, then the clamping plate 2 is removed, and then the photovoltaic panel is slid into the mounting bracket 1, and then the clamping plate 2 is connected to the side wall of the mounting bracket 1 by using the fixing bolt 3 to complete the installation of the photovoltaic panel.

[0057] In this embodiment, the worm gear 20 meshes with the worm 19. When the rotating shaft 21 is rotated, the rotating shaft 21 will transmit power to the worm 19, and then the worm 19 will drive the worm gear 20 to rotate and change the angle of the mounting bracket 1. Because there is a self-locking property between the worm gear 20 and the worm 19, the angle of the mounting bracket 1 will be fixed.

[0058] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic bracket with adjustable angle for photovoltaic power generation, comprising a support assembly and a cleaning assembly, characterized in that, The support assembly comprises a support foot (4), a downward pressure wing (7), a force rod (26), a rotating frame (6), a reinforcement rod (5), a worm (19), a downward pressure screw (25), and a rotating shaft (21); the downward pressure nut (23) and the downward pressure screw (25) are threadedly connected; the downward pressure screw (25) is fixedly connected to the center of the inner bottom of the support foot (4); the upper end of the rotating shaft (21) is fixedly connected to the worm (19); the rotating shaft (21) is rotationally connected to the downward pressure screw (25); the downward pressure screw (25) and the downward pressure nut (23) are slidingly connected via a synchronous pin (22); the reinforcement rod (5) is obliquely slidably connected to the support foot (4); the upper end of the reinforcement rod (5) is in contact with the downward pressure nut (23); the downward pressure wing (7) is horizontally arranged at the upper end of the rotating frame (6); The support assembly is used to support and reinforce the entire photovoltaic support. When the support leg (4) of the entire photovoltaic support is inserted into the ground, the rotation shaft (21) can be rotated through the force rod (26), thereby causing the synchronization pin (22) to drive the pressing nut (23) to rotate and press the reinforcement rod into the surrounding soil, thereby increasing the contact area between the support leg (4) and the soil, making the entire photovoltaic support less likely to fall over in a windy environment. At the same time, the downward pressure wing (7) will also generate downward pressure when the wind blows towards the entire photovoltaic support, so that the entire photovoltaic support will be subjected to a top-down pressure when the wind blows, thereby the entire photovoltaic support will be constantly reinforced when there is wind on the front or back.

2. The angle-adjustable photovoltaic support for photovoltaic power generation according to claim 1, wherein, The cleaning assembly comprises a mounting frame (1), a sail (9), a spring box (8), a first gear (10), a second gear (11), a limit block (15), a transmission belt (12), a pulley (13), a cleaning block (24), a slide plate (16), a spring (17), a spring rod (14), a slider (18), a power storage shaft (27), and a spring (28); the limit block (15) is slidably connected to the slide plate (16); the spring (17) is arranged between the limit block (15) and the slide plate (16); the first gear (10) and the second gear (11) are meshed with each other; the second gear (11) is fixedly connected to the pulley (13); the transmission belt (12) cooperates with the two pulleys (13); and the cleaning block (24) is fixedly connected to the transmission belt (12); The cleaning mechanism is used for cleaning the photovoltaic panels in the entire photovoltaic support. When the wind blows towards the sail (9), the sail (9) will drive the power storage shaft (27) to rotate, and the first gear (10) and the second gear (11) will rotate at the same time. The spring (28) will store energy under the action of the sail (9). The limit block (15) can realize unidirectional limit, thereby preventing the spring (28) from releasing the stored energy, but will not prevent the spring (28) from storing power.

3. The angle-adjustable photovoltaic support for photovoltaic power generation according to claim 2, wherein, The spring rod (14) is fixedly connected to the mounting frame (1), the clockwork box (8) is fixedly connected to the mounting frame (1), the slide plate (16) is slidably connected to the mounting frame (1), and the second gear (11) is rotationally connected to the pulley (13) mounting frame (1).

4. The angle-adjustable photovoltaic support for photovoltaic power generation according to claim 2, characterized in that, A worm gear (20) is fixedly connected to the rear side wall of the mounting bracket (1). A central angle shaft (29) is fixedly connected to the worm gear (20). The angle shaft (29) is rotationally connected to the rotating bracket (6). The worm gear (20) meshes with a worm (19).

5. The angle-adjustable photovoltaic support for photovoltaic power generation according to claim 2, wherein, When the pressing wing (7) is installed, the convex side should face downwards. The force adding rod (26) is inserted on the rotating shaft (21). The maximum diameter of the pressing nut (23) is the same as the inner diameter of the support leg (4). A clamping plate (2) is arranged on the side of the mounting bracket (1). A fixing bolt (3) is threadedly connected to the side wall of the clamping plate (2).

6. The angle-adjustable photovoltaic support for photovoltaic power generation according to claim 2, characterized in that, One end of a hairspring (28) is fixedly connected to the energy storage shaft (27). The other end of the hairspring (28) is in frictional contact with the hairspring box (8).

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