Angle-adjustable photovoltaic support for photovoltaic power generation

Abstract

The angle-adjustable photovoltaic support for photovoltaic power generation comprises a supporting assembly and a cleaning assembly, the supporting assembly comprises a supporting leg, a pressing wing, a stress application rod, a rotating frame, a reinforcing rod, a worm, a pressing screw and a rotating shaft, a pressing nut is in threaded connection with the pressing screw, and the pressing screw is fixedly connected to the center of the inner bottom of the supporting leg. The upper end of the rotating shaft is fixedly connected with the worm, the rotating shaft is rotationally connected with the pressing screw rod, the pressing screw rod is in sliding connection with the pressing nut through the synchronous pin, the reinforcing rod is in inclined sliding connection with the supporting leg, the upper end of the reinforcing rod is attached to the pressing nut, and the pressing wing is horizontally arranged at the upper end of the rotating frame. By arranging the supporting feet and the lower pressing wings, the device can adapt to the strong wind environment, and meanwhile the device can be reinforced when bearing strong wind.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and in particular to an angle-adjustable photovoltaic bracket for photovoltaic power generation. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor materials to directly convert solar radiation energy into electrical energy, while photovoltaic brackets are devices used to place, install and fix photovoltaic panels.

[0003] For the sake of power generation efficiency, site resources and wind and sand fixation, photovoltaic panels are mostly installed in relatively flat areas such as the Gobi Desert. Due to the flat terrain and the lack of shelter around, strong winds are prone to occur in such areas. However, the wind resistance of existing devices of this type is not ideal. For example, the Chinese patent publication number "CN116938086A" discloses a photovoltaic bracket with an adjustable angle for photovoltaic power generation. The bottom of the rotating legs of the device is rectangular. This contour makes it difficult for the rotating legs of the device to be nailed into the ground, which reduces the wind resistance of the device. When installed in places such as the Gobi Desert, the device is more likely to fall over, thereby affecting photovoltaic power generation. When the device is installed on the ground, the photovoltaic panel is at a certain angle to the ground. When the wind blows towards the device, the wind will generate a force on the photovoltaic panel, which will eventually act on the rotating legs of the device. In summary, the device is difficult to adapt to strong wind environments due to the above two defects. Accordingly, the present application proposes a photovoltaic bracket with an adjustable angle for photovoltaic power generation. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an angle-adjustable photovoltaic bracket for photovoltaic power generation.

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

[0006] A photovoltaic bracket with adjustable angle for photovoltaic power generation, comprising a supporting assembly and a cleaning assembly, wherein the supporting assembly comprises a supporting foot, a downward pressure wing, a force rod, a rotating frame, a reinforcing rod, a worm, a downward pressure screw, and a rotating shaft, wherein the downward pressure nut is threadedly connected to the downward pressure screw, the downward pressure screw is fixedly connected to the inner bottom center of the supporting foot, the upper end of the rotating shaft is fixedly connected to the worm, the rotating shaft is rotationally connected to the downward pressure screw, the downward pressure screw is slidingly connected to the downward pressure nut through a synchronous pin, the reinforcing rod is obliquely slidably connected to the supporting foot, the upper end of the reinforcing rod is in contact with the downward pressure nut, and the downward pressure wing is horizontally arranged at the upper end of the rotating frame;

[0007] The support assembly is used to support and reinforce the device body. When the support foot of the device is inserted into the ground, the shaft can be rotated through the force rod, so that the synchronous pin drives the pressing nut to rotate and presses the reinforcement rod into the surrounding soil, thereby increasing the contact area between the support foot and the soil, making the device less likely to fall over in a windy environment;

[0008] At the same time, the downforce wing will also generate downward pressure when the wind blows toward the device, so that the device will be subjected to a top-down pressure when the wind blows, thereby the device will be constantly reinforced when there is wind in the front or back.

[0009] Preferably, the cleaning assembly comprises a mounting frame, a sail, a spring box, a first gear, a second gear, a limit block, a transmission belt, a pulley, a cleaning block, a slide plate, a spring, a spring rod, a slider, a power storage shaft, and a spring, the limit block is slidably connected to the slide plate, the spring is arranged between the limit block and the slide 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 cooperates with the two pulleys, and the cleaning block is fixedly connected to the transmission belt;

[0010] The cleaning mechanism is used to clean the photovoltaic panels in this device. When the wind blows towards the sail, the sail will rotate with the power storage shaft, and gear No. 1 and gear No. 2 will rotate at the same time, and the mainspring will store energy under the action of the sail. The limit block can achieve unidirectional limiting to prevent the mainspring from releasing the stored energy, but it will not prevent the mainspring from storing power.

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

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

[0013] Preferably, the raised side of the pressure wing should be installed downward during installation, the force rod is inserted into the rotating shaft, the maximum diameter of the pressure nut is the same as the inner diameter of the support foot, a clamping plate is provided 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 mainspring is fixedly connected, and the other end of the mainspring fits with the mainspring box through friction.

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

[0016] 1. By setting the support legs, the device can adapt to the environment of strong winds and avoid the problem of the device tipping over due to strong winds. When the device is installed, the reinforcement rod can be extended from the support legs using the force rod, so that the part of the support legs below the ground forms a barb-like structure, which can increase the area of ​​the support legs below the ground and make the support legs more secure.

[0017] 2. By setting up the down-pressure wing, the device can be reinforced when the front or back of the device is subjected to strong wind. The principle is the same as the principle of lift generated by the wing, but in this device, the lower part of the down-pressure wing is an area with low air pressure, while the upper part is an area with high air pressure, that is, the direction of lift is reversed, so when the wind blows through the device, the down-pressure wing will generate pressure from bottom to top on the support foot, so that the support foot is pressed downward, thereby completing the tightening.

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

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

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

[0021] Figure 2 for Figure 1 A magnified image;

[0022] Figure 3 for Figure 1 Enlarged view of point B;

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

[0024] Figure 5 A schematic diagram of the internal structure of a support leg of a photovoltaic bracket with adjustable angle for photovoltaic power generation proposed by the present invention;

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

[0026] Figure 7 for Figure 6Enlarged view of point C.

[0027] In the figure: 1 mounting frame, 2 clamping plate, 3 fixing bolt, 4 supporting foot, 5 reinforcing rod, 6 rotating frame, 7 pressure wing, 8 spring box, 9 sail, 10 first gear, 11 second gear, 12 transmission belt, 13 pulley, 14 spring rod, 15 limit block, 16 slide plate, 17 spring, 18 slider, 19 worm, 20 worm wheel, 21 rotating shaft, 22 synchronization pin, 23 pressure nut, 24 cleaning block, 25 pressure screw, 26 force rod, 27 power storage shaft, 28 spring, 29 angle shaft. DETAILED DESCRIPTION

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

[0029] Embodiment 1:

[0030] Reference Figure 4-5 , a photovoltaic bracket with adjustable angle for photovoltaic power generation, including a supporting component and a cleaning component.

[0031] The pressing nut 23 is threadedly connected to the pressing screw 25, the pressing screw 25 is fixedly connected to the inner bottom center 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 pressing screw 25;

[0032] The pressing screw rod 25 is slidably connected to the pressing nut 23 through a plurality of synchronous pins 22. The joint action of the plurality of synchronous pins 22 can ensure the strength of the synchronous pin 22 and avoid the breakage of the synchronous pin 22. The reinforcing rod 5 is obliquely slidably connected to the support leg 4, and its upper end is fitted with the pressing nut 23. The force rod 26 is inserted into the rotating shaft 21. The force rod 26 is used to increase the torque, so that the pressing nut 23 can be easily rotated even if it is located inside the support leg 4.

[0033] The support assembly is used to support and reinforce the device body. When the support foot 4 of the device is inserted into the ground, the rotating shaft 21 can be rotated through the force rod 26, so that the synchronization pin 22 drives the downward nut 23 to rotate together. The downward nut 23 is an inverted cone, and the maximum diameter of the cone is the same as the inner diameter of the support foot 4. This allows the downward nut 23 to press the reinforcement rod 5 out of the support foot 4 when pressed down, and nail it under the ground, which increases the contact surface and makes the device less likely to fall over when facing a windy environment.

[0034] In this embodiment, refer to Figure 5The rotating shaft 21 is slidably connected with the synchronization pin 22, and the rotating shaft 21 is rotationally connected with the downward pressure screw 25. When the rotating shaft 21 is rotated by the force rod 26, multiple synchronization pins 22 will transmit the torque to the downward pressure nut 23 and make it rotate synchronously with the rotating shaft 21. At the same time, the inner diameter of the downward pressure nut 23 is the same as the inner diameter of the support leg 4. When the downward pressure nut 23 is pressed downward, the reinforcement rod 5 will also be pressed into the soil around the support leg 4, thereby increasing the contact area between the support leg 4 and the soil, and at the same time forming a profile similar to a barb, making it more difficult for the device to be pulled out from the ground, thereby obtaining better wind resistance.

[0035] Embodiment 2:

[0036] Different from the first embodiment, Figure 1 and Figure 4 , this embodiment also has the following further contents:

[0037] The downward pressure wing 7 is horizontally arranged at the upper end of the rotating frame 6, and the downward pressure wing 7 should be installed with the raised side facing downwards during installation;

[0038] The downforce wing 7 is used to reinforce the support leg 4. When the wind blows toward the device, the downforce wing 7 will generate downward pressure on the support leg 4, so that the support leg 4 will be reinforced when there is wind on the front or back of the device. The reason why the downforce wing 7 should be installed with the raised side facing downward is related to aerodynamics and Bernoulli's theorem, that is, when the aircraft flies forward, 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 air flowing over the upper surface is faster than that of the lower surface, resulting in a lower pressure on the upper surface than on the lower surface. This pressure difference generates an upward force on the upper and lower surfaces of the wing, namely, lift.

[0039] In the present device, the direction of the downward pressure wing 7 is opposite, that is, the direction of the lift is reversed, so the original lift is converted into pressure on the support foot 4 in the present device.

[0040] Embodiment three:

[0041] Reference Figure 1 - Figure 3 , compared with the first embodiment and the second embodiment, in this embodiment:

[0042] The cleaning mechanism is used for cleaning the photovoltaic panels in the device. The limit block 15 is slidably connected to the slide plate 16, the slide plate 16 is slidably connected to the mounting frame 1, the second gear 11 is rotatably connected to the pulley 13 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 to the pulley 13, the transmission belt 12 is matched with the two pulleys 13, and the cleaning block 24 is fixedly connected to the transmission belt 12.

[0044] The limit block 15 can realize unidirectional limit, so as to prevent the spring 28 from releasing the stored energy, but will not prevent the spring 28 from storing power. One end of the power storage shaft 27 and the spring 28 are fixedly connected.

[0045] The sail 9 is fixedly connected with one end of the spring 28 and the first gear 10 through the power storage shaft 27. When the wind blows towards the sail 9, the sail 9 will rotate with the power storage shaft 27, and the first gear 10 and the second gear 11 will rotate at the same time, and the spring 28 will store energy under the action of the sail 9.

[0046] The other end of the mainspring 28 is fitted with the mainspring box 8 by friction. When the mainspring 28 is charged, if it is subjected to the force from the charge shaft 27, it will rotate along the inner wall of the mainspring box 8. When the end of the mainspring 28 that is fitted with the mainspring box 8 moves to the end of the spring rod 14 located in the mainspring box 8, the end of the spring rod 14 located in the mainspring box 8 will be pushed into the mainspring box 8, and then the inclined surface of the slider 18 will push the limit block 15 away, so that it is out of the limit position of the second gear 11.

[0047] At this time, the energy stored in the spring 28 is transferred to the second gear 11 through the first gear 10, and finally drives the pulley 13 to rotate, the transmission belt 12 to move, and then the cleaning block 24 moves to clean the dust on the photovoltaic panel;

[0048] In this embodiment, refer to Figure 2 and Figure 3 The photovoltaic panel is installed in the mounting frame 1, and after the installation of the device is completed, the mounting frame 1 will be inclined at a certain angle to the ground, and the front end of the spring rod 14 is inserted into the spring box 8 and slides with the spring box 8. When the spring 28 is not fully charged, the state of the limit block 15 and the slider 18 is as follows: Figure 2 At this time, the limit block 15 can be limited in one direction, because when the second gear 11 rotates due to the power stored in 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 be reset because there is no tooth on the top;

[0049] Due to the structural characteristics of the spring 28, the two rotation directions of the first gear 10 and the second gear 11 correspond to each other when storing energy and releasing energy. When storing energy, 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. This is the direction of the second gear 11 when the spring 28 stores energy, but the other side of the limit block 15 is a plane, so the tooth surface of the second gear 11 will abut against the plane, so that the second gear 11 cannot turn from the right side of the limit block 15 to the left side. This is the direction of the second gear 11 when the spring 28 releases energy;

[0050] In the above two rotation directions, when the spring 28 releases energy, the direction of the second gear 11 is the rotation direction of the pulley 13, that is, the moving direction of the cleaning block 24. The number of teeth of the first gear 10 is greater than the number of teeth of the second gear 11, so the speed provided by the spring 28 is increased when it is transmitted to the second gear 11, so that the cleaning block 24 can be rotated back to the original position after completing one cleaning. Figure 2 Status;

[0051] When the energy stored in the spring 28 is outputted, the pressure of the spring 28 on the barrel 8 will decrease, that is, the friction force on the barrel 8 will decrease. At this time, the force outputted 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 fits the inner wall of the barrel 8 will also be changed, and a gap will appear between the spring 28 and the inner wall of the barrel 8, and the front end of the spring rod 14 is located in the gap.

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

[0053] Embodiment 4:

[0054] refer to Figure 4 , compared with the first embodiment, the second embodiment and the third embodiment, in this embodiment:

[0055] A worm wheel 20 is fixedly connected to the rear side wall of the mounting frame 1, and an angle shaft 29 is fixedly connected to the center of the worm wheel 20, so that the mounting frame 1 can be rotatably connected to the rotating frame 6, and the worm wheel 20 is meshed with the worm 19, so when the rotating shaft 21 rotates, the worm 19 will also rotate, thereby causing the worm wheel 20 to rotate and drive the angle of the mounting frame 1 to change;

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

[0057] In this embodiment, the worm wheel 20 is meshed 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 rotate with the worm wheel 20 and change the angle of the mounting frame 1. Because there is self-locking between the worm wheel 20 and the worm 19, the angle of the mounting frame 1 will be fixed.

[0058] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which 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 supporting component and a cleaning component, 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 device body. When the support foot (4) of the device 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 foot (4) and the soil, making the device 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 device, so that the device will be subjected to a top-down pressure when the wind blows, thereby the device will be constantly reinforced when there is wind on the front or back.

2. The photovoltaic bracket with adjustable angle for photovoltaic power generation according to claim 1, characterized in that: 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 panel in the device. When the wind blows towards the sail (9), the sail (9) will rotate with the power storage shaft (27), 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 bracket for photovoltaic power generation according to claim 2, characterized in that: 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 bracket for photovoltaic power generation according to claim 2, characterized in that: A worm wheel (20) is fixedly connected to the rear side wall of the mounting frame (1), an angle shaft (29) is fixedly connected to the center of the worm wheel (20), the angle shaft (29) is rotatably connected to the rotating frame (6), and the worm wheel (20) is meshed with the worm (19).

5. The photovoltaic bracket with adjustable angle for photovoltaic power generation according to claim 1, characterized in that: The downward pressure wing (7) should be installed with the raised side facing downwards during installation. The force rod (26) is plugged into the rotating shaft (21). The maximum diameter of the downward pressure nut (23) is the same as the inner diameter of the support foot (4). A clamping plate (2) is provided on the side of the mounting frame (1). A fixing bolt (3) is threadedly connected to the side wall of the clamping plate (2).

6. The angle-adjustable photovoltaic bracket for photovoltaic power generation according to claim 2, characterized in that: One end of the power storage shaft (27) is fixedly connected to the mainspring (28), and the other end of the mainspring (28) is fitted to the mainspring box (8) through friction.

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