Joint adjusting photovoltaic support

Abstract

The utility model discloses a joint adjusting photovoltaic support in the technical field of photovoltaic supports, which comprises a plurality of groups of photovoltaic supports, a bearing seat of a single group of photovoltaic supports is fixedly arranged at the top end of a stand column, a main beam penetrates through a bearing on the bearing seat, a support frame is fixedly arranged on the main beam, an adjusting mechanism is arranged on the stand column, and the adjusting mechanism comprises an air cylinder, a piston and a piston rod. One end of the air cylinder is hinged to the stand column, the piston is arranged in a piston cavity of the air cylinder, one side of the piston is a first cavity, the other side of the piston is a second cavity, the second cavity is provided with a compression spring, one end of the piston rod is fixedly connected with the piston, and the other end of the piston rod extends out of the air cylinder to be hinged to the supporting frame. And the first cavities of the cylinders arranged on the plurality of groups of photovoltaic brackets are communicated with air supply equipment through pipelines. According to the utility model, the technical problems of incapability of realizing synchronous adjustment of a plurality of groups of photovoltaic brackets, adaption to east-rising and west-falling large-angle adjustment of the sun and high manufacturing cost in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a photovoltaic support for joint commissioning. Background Technology

[0002] With the increasing emphasis placed on energy conservation and emission reduction by the international community, solar energy, as a clean and renewable energy source, has been widely applied and developed. Photovoltaic panels are one of the most common ways to utilize solar energy today. In practice, photovoltaic panels are usually installed in rows on supports with rotating adjustment devices to track different angles of the sun and optimize the efficiency of sunlight reception.

[0003] In photovoltaic power plants, due to the large number of photovoltaic panels, the corresponding photovoltaic support structures are also arranged in multiple groups. A single photovoltaic support structure includes a column, a bearing seat, a main beam, and a support frame. The bearing seat is fixed at the top of the column and contains a bearing. The main beam passes through the bearing and the support frame is fixed on the main beam. The column of a single photovoltaic support structure is usually equipped with an independent motor and an electric push rod, which drives the main beam and the support frame to rotate around the central axis of the bearing at a certain angle, thereby achieving optimal capture of sunlight.

[0004] In this situation, the adjustment of each photovoltaic support needs to be completed by controlling its motor and electric actuator separately. This means that when adjusting the position of multiple photovoltaic support sets, the angle must be checked and set one by one. It is impossible to adjust the tilt angle of multiple support sets simultaneously or synchronously. This process is both time-consuming and inefficient. Each photovoltaic support set is independently equipped with a motor and electric actuator. On the one hand, the range of adjustable angles is limited and cannot adapt to the large angle adjustment of the sun rising in the east and setting in the west. On the other hand, the manufacturing cost is high and maintenance is inconvenient. Utility Model Content

[0005] To address the technical problems of existing technologies being unable to achieve synchronous adjustment of multiple photovoltaic brackets, adapt to large-angle adjustments during sunrise and sunset, and having high manufacturing costs, this utility model provides a photovoltaic bracket that can synchronously adjust multiple brackets and reduce manufacturing costs.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] The integrated photovoltaic (PV) support system comprises multiple PV support units. Each PV support unit includes a column, bearing housing, main beam, and support frame. The bearing housing is fixedly mounted on the top of the column and contains a bearing. The main beam passes through the bearing, and the support frame is fixedly mounted on the main beam. An adjustment mechanism is installed on the column to drive the main beam and support frame to rotate around the central axis of the bearing. The adjustment mechanism includes a cylinder, a piston, and a piston rod. One end of the cylinder is hinged to the column, and the cylinder has a piston chamber inside. The piston is located in the piston chamber, with one side of the piston forming a first chamber and the other side forming a second chamber. The second chamber is equipped with a compression mechanism. The system includes a spring, a piston rod, and a piston rod. One end of the piston rod is fixedly connected to the piston, and the other end of the piston rod extends out of the cylinder and is hinged to the support frame. The piston rod has a first state and a second state. When the piston rod is in the first state, the air in the first chamber is pressurized, the compression spring is gradually compressed, and the piston rod gradually extends out of the cylinder. When the piston rod is in the second state, the air in the first chamber is depressurized, the compression spring is gradually extended, and the piston rod gradually retracts into the cylinder. The system also includes an air supply device. One air supply device is connected in parallel to multiple sets of photovoltaic brackets. The first chambers of the cylinders installed on the multiple sets of photovoltaic brackets are all connected to the air supply device through pipelines.

[0008] Furthermore, the air supply equipment includes an air compressor, an air tank, connecting pipes, and multiple branch pipes. The air compressor is connected to the air tank via the connecting pipes, and a check valve is installed on the connecting pipes. The air tank is equipped with a main gas supply pipe, and the first chamber of the cylinder installed on each photovoltaic support is connected to the main gas supply pipe via a branch pipe.

[0009] Furthermore, the gas storage tank is connected to an exhaust pipe, and an electric valve is installed on the exhaust pipe to control the internal gas pressure of the gas storage tank.

[0010] Furthermore, a pressure switch is installed on the connecting pipe to control the start and stop of the air compressor.

[0011] Furthermore, manual ball valves are installed on the connecting pipes, main gas supply pipes, branch pipes, and exhaust pipes for equipment inspection and maintenance.

[0012] Furthermore, the gas storage tank is equipped with a safety pressure relief valve.

[0013] Furthermore, a pressure gauge is installed on the gas storage tank.

[0014] Furthermore, a purging connector is provided on the branch pipe.

[0015] Furthermore, it also includes a metal hose, through which the branch pipe is connected to the first chamber of the cylinder.

[0016] The beneficial effects of this utility model are:

[0017] This solution achieves synchronized angle adjustment of multiple photovoltaic (PV) brackets by introducing a centralized air supply system connected to pneumatic components (cylinders, pistons, and piston rods) on each PV bracket group. This ensures all PV panels consistently track the sun's position, optimizing sunlight reception. This solution eliminates the traditional method of independently installing motors and electric actuators for each PV bracket group, avoiding the need for individual tilt angle adjustments. This simplifies the structure, reduces manufacturing and maintenance costs, and improves adjustment speed and efficiency. The solution eliminates the need for multiple motors and related electrical components outdoors, reducing the need for extensive electrical and control wiring, preventing electric shock hazards, reducing potential failure points, and enhancing system stability and safety. It also lowers long-term operating costs. Only the air pressure supplied by the air supply system needs to be controlled to uniformly adjust the angles of multiple PV bracket groups, making operation more convenient. Furthermore, the pneumatic components are more resistant to harsh weather conditions, enhancing the all-weather operation capability of the PV power station. This represents a significant advancement in PV bracket technology and has a positive impact on the development of the solar energy industry.

[0018] Furthermore, this solution enables a wide adjustment range of over 180° for the photovoltaic bracket, allowing it to automatically align with the light source and achieve the optimal illumination angle as the sun rises and sets. This solution requires only one air supply unit to supply gas to the first chamber, and the photovoltaic bracket can be reset using a compression spring. There is no need to add additional pipelines to supply gas to the second chamber, nor is there a need for a control system to manage the pressure difference between the first and second chambers for reset, thus reducing the complexity of the equipment and the difficulty of maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the cylinder of this utility model installed on the photovoltaic bracket;

[0020] Figure 2 yes Figure 1 A schematic diagram of some structures has been omitted.

[0021] Figure 3 This is a schematic diagram of the cylinder structure;

[0022] Figure 4 This is a schematic diagram of the structure in which the main gas supply pipe is connected to multiple cylinders via branch pipes;

[0023] Figure 5 yes Figure 4 A magnified view of part A in the image;

[0024] Figure 6 This is a structural diagram of an air supply system;

[0025] Figure 7 This is a simplified structural diagram showing the orientation of the photovoltaic support bracket of this utility model at sunrise;

[0026] Figure 8 This is a simplified structural diagram showing the orientation of the photovoltaic support bracket of this utility model at sunset;

[0027] The markings in the diagram are as follows: 1-Column, 2-Bearing seat, 3-Main beam, 4-Support frame, 5-Cylinder, 6-Piston, 7-Piston rod, 8-First chamber, 9-Second chamber, 10-Compression spring, 11-Air compressor, 12-Air tank, 13-Connecting pipe, 14-Main gas supply pipe, 15-Branch pipe, 16-Check valve, 17-Exhaust pipe, 18-Electric valve, 19-Pressure switch, 20-Manual ball valve, 21-Safety relief valve, 22-Pressure gauge, 23-Purge connector, 24-Metal hose, 25-Air inlet. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the present invention will be further described below with reference to the accompanying drawings.

[0029] First, it should be stated that the technical solutions of the embodiments of this application are clearly and completely described. The described embodiments are only some of the embodiments of this application, and not a limitation of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the description of this utility model, it should be understood that the terms "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0031] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation," etc., should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Reference Figures 1 to 8 This utility model provides a photovoltaic support bracket for joint regulation.

[0033] like Figures 1 to 4As shown in the embodiment of this solution, the photovoltaic support system includes multiple photovoltaic support sets. Each photovoltaic support set includes a column 1, a bearing seat 2, a main beam 3, and a support frame 4. The bearing seat 2 is fixedly mounted on the top of the column 1, and a bearing is installed inside the bearing seat 2. The main beam 3 passes through the bearing, and the support frame 4 is fixedly mounted on the main beam 3. An adjustment mechanism is provided on the column 1 to drive the main beam 3 and the support frame 4 to rotate around the central axis of the bearing. The adjustment mechanism includes a cylinder 5, a piston 6, and a piston rod 7. One end of the cylinder 5 is hinged to the column 1, and the cylinder 5 has a piston chamber inside. The piston 6 is located in the piston chamber. One side of the piston 6 is a first chamber 8, and the other side of the piston 6 is a second chamber 9. The chamber 9 is equipped with a compression spring 10. One end of the piston rod 7 is fixedly connected to the piston 6, and the other end of the piston rod 7 extends out of the cylinder 5 and is hinged to the support frame 4. The piston rod 7 has a first state and a second state. When the piston rod 7 is in the first state, the air in the first chamber 8 is pressurized, the compression spring 10 is gradually compressed, and the piston rod 7 gradually extends out of the cylinder 5. When the piston rod 7 is in the second state, the air in the first chamber 8 is depressurized, the compression spring 10 is gradually extended, and the piston rod 7 gradually retracts into the cylinder 5. It also includes an air supply device. One set of air supply device is connected in parallel to multiple sets of photovoltaic brackets. The first chamber 8 of the cylinders 5 set on the multiple sets of photovoltaic brackets are all connected to the air supply device through pipelines.

[0034] This invention employs a cylinder 5 as the angle adjustment device for the photovoltaic (PV) bracket. An air supply device supplies air through pipelines to the first chamber 8 of the cylinder 5 on multiple PV brackets. The air pressure in the first chamber 8 of the cylinder 5 is proportional to the extension length of the piston rod 7. By controlling the air pressure supplied by the air supply device, the extension length of the piston rod 7 on the cylinder 5 of the connected PV brackets can be controlled, thereby achieving joint adjustment of the angle of multiple PV brackets. This solution can achieve a wide range of adjustment of the PV bracket exceeding 180°, adapting to the rising and setting of the sun, ensuring that the PV panels always receive optimal sunlight. This solution only requires one air supply device to supply gas to the first chamber 8, and the PV bracket can be reset by the compression spring 10. There is no need to add other pipelines to supply gas to the second chamber 9, nor is there a control system to control the pressure difference between the first chamber 8 and the second chamber 9 for reset, reducing the complexity of the equipment and the difficulty of maintenance.

[0035] Traditional technology requires an independent motor and electric actuator for each photovoltaic (PV) bracket, necessitating individual tilt angle adjustments for each bracket. Furthermore, the motors require regular wiring checks, and the mechanical adjustment mechanisms require regular lubrication. The motors on each bracket are repeatedly started and stopped daily, increasing the risk of motor damage. Extensive wiring is also required for power supply and control, increasing the workload and posing a risk of electric shock. This new invention eliminates the need for multiple motors and related electrical components outdoors, preventing electric shock hazards, reducing potential failure points, and enhancing system stability and safety. In case of failure, only a simple replacement of cylinder 5 is needed, resulting in low operating and maintenance costs, a simplified structure, and improved adjustment speed and efficiency. This invention only requires controlling the air pressure supplied by the air supply equipment to uniformly adjust the angles of multiple PV brackets, making operation more convenient. The pneumatic components are also more resistant to harsh weather conditions, enhancing the all-weather operation capability of the PV power station.

[0036] The air supply equipment is installed indoors and connected to multiple photovoltaic brackets via piping. For this air supply equipment, mature supporting equipment can be selected for retrofitting, or an air supply system including an air compressor 11, an air tank 12, piping, and related valve assemblies can be chosen. Figure 5 and Figure 6 As shown, the air supply equipment includes an air compressor 11, an air tank 12, a connecting pipe 13, and multiple branch pipes 15. The air compressor 11 is connected to the air tank 12 via the connecting pipe 13, which is equipped with a check valve 16. The air tank 12 is equipped with a main air supply pipe 14. The first chamber 8 of the cylinder 5 on each photovoltaic support is connected to the main air supply pipe 14 via the branch pipes 15. This equipment is generally installed indoors. The air compressor 11 is used to pressurize or replenish the air tank 12. Its start and stop can be controlled by a pressure switch 19 installed on the connecting pipe 13, or an external control switch can be connected to the air compressor 11. It can be automatically shut off by setting a pressure threshold, or it can be manually started and stopped. The air tank 12 is used to balance and maintain pressure. Its large capacity ensures that the air pressure connected to the air tank 12, pipelines, cylinders 5, etc., is stable, and the piston rod 7 will not move due to small fluctuations in air pressure. For check valve 16, a rotary check valve can be selected, which controls the air to be conducted in only one direction, that is, only the air compressor 11 can transmit to the air tank 12, and the air tank 12 cannot flow back to the air compressor 11.

[0037] For cylinder 5, such as Figure 3As shown, one side of piston 6 is the first chamber 8, and the other side is the second chamber 9. The second chamber 9 is equipped with a compression spring 10. Piston rod 7 has a first state and a second state. When piston rod 7 is in the first state, the air in the first chamber 8 is pressurized, the compression spring 10 is gradually compressed, and piston rod 7 gradually extends out of cylinder 5. When piston rod 7 is in the second state, the air in the first chamber 8 is depressurized, the compression spring 10 gradually extends, and piston rod 7 gradually retracts into cylinder 5. When no air pressure is formed in the first chamber 8, piston rod 7 is at its shortest extension. As the air pressure in the first chamber 8 increases, the compression spring 10 is continuously compressed, and piston rod 7 gradually extends. The extension length of piston rod 7 is proportional to the air pressure inside the cylinder. When the air pressure in the first chamber 8 begins to decrease, under the elastic force of the compression spring 10, piston 6 gradually returns to its original position, and piston rod 7 gradually retracts. By adjusting the air pressure in the first chamber 8, the extension length of piston rod 7 can be adjusted, thereby driving the main beam 3 and support frame 4 to rotate around the bearing's central axis, thus achieving adjustment of the photovoltaic panel angle. Simply supplying air to the air inlet 25 of the first chamber 8 enables unidirectional movement, which is then reset by the compression spring 10. This results in a simpler structure, lower cost, and eliminates the need for additional pipelines to supply gas to the second chamber 9. It also eliminates the need for a control system to manage the pressure difference between the first chamber 8 and the second chamber 9 to achieve reset, thus reducing the complexity and maintenance difficulty of the equipment.

[0038] Furthermore, cylinder 5 can be configured as a multi-stage cylinder, increasing the stroke of piston rod 7, which can effectively increase the angle adjustment range of the photovoltaic bracket.

[0039] like Figure 6 As shown in this embodiment, an exhaust pipe 17 is connected to the gas storage tank 12, with the end of the exhaust pipe 17 leading to the outside. An electric valve 18 is installed on the exhaust pipe 17 to control the internal air pressure of the gas storage tank 12. The electric valve 18 is used to dynamically control the pressure inside the gas storage tank 12 to a set pressure value. By adjusting the electric valve 18 to control whether air is released to the outside, the air pressure inside the gas storage tank 12 can be controlled more precisely, thereby controlling the gas pressure in the first chamber 8 of the cylinder 5 connected to the gas storage tank 12, and obtaining the corresponding piston rod 7 extension stroke.

[0040] like Figure 6 As shown in the embodiment of this solution, a pressure switch 19 for controlling the start and stop of the air compressor 11 is provided on the connecting pipe 13. The pressure switch 19 controls whether to replenish air into the air tank 12, and the air pressure in the air tank 12 can be roughly controlled.

[0041] like Figure 6 As shown in the embodiment of this solution, manual ball valves 20 are installed on the connecting pipe 13, the main gas supply pipe 14, the branch pipe 15, and the exhaust pipe 17. These manual ball valves 20 are used for maintenance purposes and are located at the connection points between individual devices for maintenance of those devices.

[0042] like Figure 6 As shown in the embodiment of this solution, a safety pressure relief valve 21 is provided on the air storage tank 12. The safety pressure relief valve 21 is preferably located on the top of the air storage tank 12. When the entire air supply equipment experiences extreme abnormal operating conditions, the safety pressure relief valve 21 releases pressure from the air storage tank 12 to ensure that the entire air supply equipment is within a safe and controllable range.

[0043] like Figure 6 As shown in this embodiment, a pressure gauge 22 is installed on the gas storage tank 12. The pressure gauge 22 is used to obtain the corresponding system pressure value, which verifies the system's detected air pressure and facilitates operators to monitor the system's safety dynamics in real time.

[0044] like Figure 4 and Figure 5 As shown in this embodiment, a purge connector 23 is provided on the branch pipe 15. Air is used as the medium, which is non-toxic and pollution-free. The purge connector 23 has a valve, such as... Figure 8 As shown, when the photovoltaic panel faces the direction of the setting sun at night, the piston rod 7 in cylinder 5 extends to its longest position, and the gas pressure in the first chamber 8 is at its maximum. At this time, a purging device can be connected to the purging connector 23 or the valve can be opened directly to purge. The high-pressure air in the first chamber 8 is used to purge the surface of the photovoltaic panel to keep it clean and improve power generation efficiency. During the purging process, the pressure in the gas storage tank 12 can also be released until it returns to normal. Figure 7 The tilt angle shown allows the photovoltaic panel to return to the direction facing the sunrise. Alternatively, pressure can be released at the gas storage tank 12 to return the photovoltaic panel to the direction facing the sunrise.

[0045] like Figure 5 As shown, in this embodiment of the solution, a metal hose 24 is also included, and the branch pipe 15 is connected to the first chamber 8 of the cylinder 5 through the metal hose 24.

Claims

1. A photovoltaic support system, comprising multiple photovoltaic support systems, wherein a single photovoltaic support system comprises a column (1), a bearing seat (2), a main beam (3), and a support frame (4), wherein the bearing seat (2) is fixedly mounted on the top of the column (1), and a bearing is provided inside the bearing seat (2), the main beam (3) passes through the bearing, and the support frame (4) is fixedly mounted on the main beam (3), wherein an adjustment mechanism is provided on the column (1) to drive the main beam (3) and the support frame (4) to rotate around the central axis of the bearing, characterized in that: The adjusting mechanism includes a cylinder (5), a piston (6), and a piston rod (7). One end of the cylinder (5) is hinged to a column (1). The cylinder (5) has a piston chamber inside, and the piston (6) is located inside the piston chamber. One side of the piston (6) is a first chamber (8), and the other side of the piston (6) is a second chamber (9). A compression spring (10) is installed in the second chamber (9). One end of the piston rod (7) is fixedly connected to the piston (6), and the other end of the piston rod (7) extends out of the cylinder (5) and is hinged to a support frame (4). The piston rod (7) has a first... In the first state, the piston rod (7) is pressurized, the compression spring (10) is gradually compressed, and the piston rod (7) gradually extends out of the cylinder (5). In the second state, the piston rod (7) is depressurized, the compression spring (10) gradually extends, and the piston rod (7) gradually retracts into the cylinder (5). It also includes an air supply device. One set of air supply device is connected in parallel to multiple sets of photovoltaic brackets. The first chamber (8) of the cylinder (5) set on the multiple sets of photovoltaic brackets is connected to the air supply device through pipelines.

2. The photovoltaic support system as described in claim 1, characterized in that: The air supply equipment includes an air compressor (11), an air tank (12), a connecting pipe (13), and multiple branch pipes (15). The air compressor (11) is connected to the air tank (12) through the connecting pipe (13). A check valve (16) is installed on the connecting pipe (13). The air tank (12) is equipped with a main gas supply pipe (14). The first chamber (8) of the cylinder (5) installed on each photovoltaic bracket is connected to the main gas supply pipe (14) through the branch pipe (15).

3. The photovoltaic support system as described in claim 2, characterized in that: An exhaust pipe (17) is connected to the gas storage tank (12), and an electric valve (18) for controlling the internal air pressure of the gas storage tank (12) is installed on the exhaust pipe (17).

4. The photovoltaic support system as described in claim 2, characterized in that: A pressure switch (19) for controlling the start and stop of the air compressor (11) is provided on the connecting pipe (13).

5. The photovoltaic support system as described in claim 2, characterized in that: Manual ball valves (20) are installed on the connecting pipe (13), the main gas supply pipe (14), the branch pipe (15), and the exhaust pipe (17).

6. The photovoltaic support system as described in claim 2, characterized in that: A safety relief valve (21) is installed on the gas storage tank (12).

7. The photovoltaic support system as described in claim 2, characterized in that: A pressure gauge (22) is installed on the gas storage tank (12).

8. The photovoltaic support system as described in claim 2, characterized in that: A purge connector (23) is reserved on the branch pipe (15).

9. The photovoltaic support system as described in claim 2, characterized in that: It also includes a metal hose (24), and the branch pipe (15) is connected to the first chamber (8) of the cylinder (5) through the metal hose (24).

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