Joint adjusting photovoltaic support

Abstract

The invention 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 bearing is arranged in the bearing seat, a main beam is arranged in the bearing in a penetrating manner, 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. The technical problems that in the prior art, synchronous adjustment of multiple sets of photovoltaic supports cannot be achieved, wide-angle adjustment of the sun rising in the east and falling in the west cannot be achieved, and the manufacturing cost is high are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and in particular to a joint-adjustment photovoltaic bracket. Background Art

[0002] As the international community pays more and more attention to energy conservation and emission reduction, solar energy, as a clean and renewable energy source, has been widely used and developed. Photovoltaic panel assembly is one of the most common ways to utilize solar energy today. In practice, photovoltaic panels are usually arranged in rows on brackets with rotating adjustment devices to track different angles of the sun and optimize the efficiency of light reception.

[0003] In a photovoltaic power station, due to the large number of photovoltaic panels, the corresponding photovoltaic brackets are also divided into multiple groups. A single group of photovoltaic brackets includes a column, a bearing seat, a main beam and a support frame. The bearing seat is fixed at the top of the column, a bearing is arranged in the bearing seat, the main beam is passed through the bearing, and the support frame is fixed on the main beam. The columns of a single group of photovoltaic brackets are usually equipped with independent motors and electric push rods, which drive the main beam and the support frame to rotate a certain angle around the central axis of the bearing, so as to achieve the best capture of sunlight.

[0004] In this case, the adjustment of each group of photovoltaic brackets needs to be completed by individually controlling its motor and electric push rod. This results in that when adjusting the position of multiple groups of photovoltaic brackets, the angles must be checked and set one by one, and the inclination angles of multiple groups of brackets cannot be adjusted simultaneously or synchronously. This process is time-consuming and inefficient. Each group of photovoltaic brackets is independently equipped with a motor and an electric push rod. 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. Summary of the invention

[0005] In order to solve the technical problems that the prior art cannot achieve synchronous adjustment of multiple groups of photovoltaic brackets, adapt to large-angle adjustment of the sun rising in the east and setting in the west, and has high manufacturing costs, the present invention provides a joint-adjustment photovoltaic bracket that can synchronously adjust multiple groups of brackets and reduce manufacturing costs.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] The joint-adjustment photovoltaic bracket includes multiple groups of photovoltaic brackets. A single group of photovoltaic brackets includes a column, a bearing seat, a main beam and a support frame. The bearing seat is fixedly arranged at the top of the column, a bearing is arranged in the bearing seat, the main beam is inserted in the bearing, and the support frame is fixed on the main beam. An adjustment mechanism is arranged on the column to drive the main beam and the 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 hingedly arranged on the column, and a piston cavity is arranged inside the cylinder. The piston is arranged in the piston cavity. One side of the piston is a first chamber, and the other side of the piston is a second chamber. The second chamber is provided with a compression A spring, one end of the piston rod is fixedly connected to the piston, 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 is gradually extended 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 is gradually retracted into the cylinder, and also includes air supply equipment, a set of air supply equipment is connected to multiple groups of photovoltaic brackets in parallel, and the first chambers of the cylinders arranged on the multiple groups of photovoltaic brackets are connected to the air supply equipment through pipelines.

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

[0009] Furthermore, the gas storage tank is connected to an exhaust pipe, and the exhaust pipe is provided with an electric valve for controlling the internal air pressure of the gas storage tank.

[0010] Furthermore, a pressure switch for controlling the start and stop of the air compressor is arranged on the connecting pipe.

[0011] Furthermore, manual ball valves are provided on the connecting pipe, gas main pipe, branch pipe and exhaust pipe for inspection and maintenance of the equipment.

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

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

[0014] Furthermore, a purge joint is reserved on the branch pipe.

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

[0016] The beneficial effects of the present invention are:

[0017] This solution introduces a centralized air supply device connected to the pneumatic components (cylinders, pistons and piston rods) on each group of photovoltaic brackets, realizing the synchronous angle adjustment of multiple groups of photovoltaic brackets, ensuring that all photovoltaic panels can consistently track the position of the sun and optimize light reception. This solution abandons the traditional way of independently setting motors and electric push rods for each group of photovoltaic brackets, avoiding the need for traditional technology to adjust the tilt angle of each group of photovoltaic brackets one by one, simplifying the structure, reducing manufacturing and maintenance costs, and improving the adjustment speed and efficiency. This solution eliminates the use of multiple motors and related electrical components outdoors, does not require the laying of a large number of electrical and control pipelines, prevents safety hazards of electric shock, reduces fault points, enhances the stability and safety of the system, and reduces long-term operating costs. It only needs to control the air pressure supplied by the air supply equipment to complete the unified adjustment of the angles of multiple groups of photovoltaic brackets. The operation is more convenient, and the pneumatic components are more resistant to severe weather conditions, enhancing the all-weather operation capability of photovoltaic power stations, representing an important advancement in photovoltaic bracket technology, and has positive significance for promoting the development of the solar energy industry.

[0018] In addition, this solution can achieve a wide range of adjustment of the photovoltaic bracket over 180°, so that the photovoltaic bracket can automatically align with the light source as the sun rises and sets to obtain the best irradiation angle. This solution only requires one set of air supply equipment to supply gas to the first chamber, and the photovoltaic bracket can be reset by relying on the compression spring. There is no need to add other pipelines to supply gas to the second chamber, and there is no need to set up a control system to control the air pressure difference between the first chamber and the second chamber to achieve reset, which reduces the complexity of the equipment and the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the cylinder of the present invention installed on a photovoltaic support;

[0020] Figure 2 yes Figure 1 A schematic diagram omitting some structures;

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

[0022] Figure 4 It is a structural diagram of a gas transmission main pipe connected to multiple cylinders through branch pipes;

[0023] Figure 5 yes Figure 4 A partial enlarged view of middle A;

[0024] Figure 6 It is a schematic diagram of the structure of the air supply equipment;

[0025] Figure 7 It is a simplified structural schematic diagram of the photovoltaic bracket of the present invention facing in the sunrise;

[0026] Figure 8 It is a simplified structural schematic diagram of the photovoltaic bracket of the present invention facing at sunset;

[0027] Marked in the figure are, 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-gas storage tank, 13-connecting pipe, 14-gas main pipe, 15-branch pipe, 16-check valve, 17-exhaust pipe, 18-electric valve, 19-pressure switch, 20-manual ball valve, 21-safety pressure relief valve, 22-pressure gauge, 23-purge joint, 24-metal hose, 25-air inlet. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clearly expressed, the present invention is further described below in conjunction with the accompanying drawings.

[0029] First of all, it needs to be stated that the technical solutions of the embodiments of the present application are clearly and completely described. The described embodiments are part of the embodiments of the present application, and are not limitations of the present invention. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0030] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “first”, “second”, “upper”, “lower”, “left”, “right”, “inner”, “outer”, “axial” or “radial” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0031] It should be noted that, in the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Reference Figures 1 to 8 The present invention provides a joint-adjustment photovoltaic bracket.

[0033] like Figures 1 to 4As shown, in the embodiment of the present scheme, the joint-adjusting photovoltaic bracket includes multiple groups of photovoltaic brackets, and a single group of photovoltaic brackets includes a column 1, a bearing seat 2, a main beam 3 and a support frame 4. The bearing seat 2 is fixedly arranged at the top of the column 1, and a bearing is arranged in the bearing seat 2. The main beam 3 is inserted into the bearing, and the support frame 4 is fixed on the main beam 3. An adjustment mechanism is arranged 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 hingedly arranged on the column 1, and a piston cavity is provided inside the cylinder 5. The piston 6 is arranged in the piston cavity. 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 provided 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 is gradually retracted into the cylinder 5. It also includes an air supply device, a set of air supply equipment is connected in parallel with multiple groups of photovoltaic brackets, and the first chambers 8 of the cylinders 5 arranged on the multiple groups of photovoltaic brackets are connected to the air supply equipment through pipelines.

[0034] The present invention adopts the cylinder 5 as the angle adjustment device of the photovoltaic bracket, and the air supply device connects the air to the first chamber 8 of the cylinder 5 set on the multiple groups of photovoltaic brackets through the pipeline. 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 on the multiple groups of photovoltaic brackets connected thereto can be controlled, thereby realizing the joint adjustment of the angles of the multiple groups of photovoltaic brackets. This scheme can realize a large range adjustment of the photovoltaic bracket exceeding 180°, can adapt to the rising and setting of the sun, so that the photovoltaic panel can always obtain the best illumination angle. This scheme only needs one set of air supply equipment to supply gas to the first chamber 8, and the photovoltaic bracket can be reset by relying on the compression spring 10. There is no need to add other pipelines to supply gas to the second chamber 9, and there is no need to set a control system to control the air pressure difference between the first chamber 8 and the second chamber 9 to achieve reset, which reduces the complexity of the equipment and the difficulty of maintenance.

[0035] Traditional technology requires that each group of photovoltaic brackets be independently provided with a motor and an electric push rod, and that the tilt angle of each group of photovoltaic brackets be adjusted one by one. At the same time, the motor needs to check the circuit regularly, and the mechanical adjustment structure needs to be regularly refueled and lubricated. The motor on each group of photovoltaic brackets needs to be repeatedly started and stopped every day, which is easy to damage the motor. In order to supply power and control electrical equipment, a large number of pipelines need to be buried, which increases the amount of engineering work, and there is also a hidden danger of electric shock during use. However, the present invention eliminates the use of multiple motors and related electrical components outdoors, prevents safety hazards of electric shock, reduces the points of failure, and enhances the stability and safety of the system. If a failure occurs, it is only necessary to simply replace the cylinder 5. The operating and maintenance costs are low, the structure is simplified, and the adjustment speed and efficiency are improved. The present invention only needs to control the air pressure supplied by the air supply equipment to complete the unified adjustment of the angles of multiple groups of photovoltaic brackets. The operation is more convenient, and the pneumatic components are more resistant to severe weather conditions, which enhances the all-weather operation capability of the photovoltaic power station.

[0036] The air supply equipment is arranged indoors and connected to multiple photovoltaic brackets through pipelines. For the air supply equipment, mature supporting equipment can be selected for modification, or air supply equipment including an air compressor 11, an air storage tank 12, pipelines and related valve groups can be selected, such as Figure 5 and Figure 6 As shown, specifically: the air supply equipment includes an air compressor 11, an air tank 12, a connecting pipe 13 and a plurality of branch pipes 15. The air compressor 11 is connected to the air tank 12 through the connecting pipe 13. A check valve 16 is arranged on the connecting pipe 13. The air tank 12 is equipped with a gas supply main pipe 14. The first chamber 8 of the cylinder 5 arranged on each group of photovoltaic brackets is connected to the gas supply main pipe 14 through the branch pipe 15. The equipment is generally arranged indoors. The air compressor 11 is used to pressurize or replenish the air in the air tank 12. Its start and stop can be controlled by the pressure switch 19 arranged on the connecting pipe 13. The air compressor 11 can also be connected to an external control switch, and the pressure threshold can be set to automatically shut down, or it can be started and stopped manually. The air tank 12 is used to balance pressure and maintain pressure. Its large capacity is used to ensure 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 slight fluctuations in air pressure. A rotary check valve can be selected for the check valve 16 to control air to be conducted in only one direction, that is, air can only be transmitted from the air compressor 11 to the air storage tank 12 , but not from the air storage tank 12 to the air compressor 11 .

[0037] For cylinder 5, if Figure 3As shown, one side of the piston 6 is the first chamber 8, and the other side of the piston 6 is the second chamber 9. The second chamber 9 is provided with a compression spring 10. 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 is gradually retracted into the cylinder 5. When there is no air pressure in the first chamber 8, the piston rod 7 extends the shortest. As the air pressure in the first chamber 8 increases, the compression spring 10 is continuously compressed, and the piston rod 7 will gradually extend. The extension length of the piston rod 7 is proportional to the air pressure in the cylinder. When the air pressure in the first chamber 8 begins to decrease, under the elastic force of the compression spring 10, the piston 6 gradually resets and the piston rod 7 is gradually retracted. The extension length of the piston rod 7 can be adjusted by adjusting the air pressure in the first chamber 8, thereby driving the main beam 3 and the support frame 4 to rotate around the central axis of the bearing to achieve the adjustment of the angle of the photovoltaic panel. It is only necessary to ventilate the air inlet 25 of the first chamber 8 to achieve unidirectional movement, and rely on the compression spring 10 to reset. The structure is simpler and the cost is low. There is no need to add other pipelines to supply gas to the second chamber 9, and there is no need to set up a control system to control the air pressure difference between the first chamber 8 and the second chamber 9 to achieve reset, which reduces the complexity of the equipment and the difficulty of maintenance.

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

[0039] like Figure 6 As shown, in the embodiment of the present scheme, the gas storage tank 12 is connected with an exhaust pipe 17, the end of the exhaust pipe 17 is led to the outside, and the exhaust pipe 17 is provided with an electric valve 18 for controlling the internal air pressure of the gas storage tank 12. The electric valve 18 is used to dynamically control the pressure in the gas storage tank 12 at a set pressure value. By adjusting the electric valve 18 to control whether the air is released to the outside, the air pressure in the gas storage tank 12 can be controlled more accurately, 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 extension stroke of the piston rod 7.

[0040] like Figure 6 As shown, in the embodiment of the present scheme, 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 add air to the air storage tank 12, and the air pressure in the air storage tank 12 can be roughly controlled.

[0041] like Figure 6 As shown, in the embodiment of this scheme, a manual ball valve 20 is provided on the connecting pipe 13, the gas main pipe 14, the branch pipe 15 and the exhaust pipe 17. Here, the manual ball valve 20 is used for maintenance purposes and is arranged at the connection between each monomer device for maintenance of the monomer device.

[0042] like Figure 6 As shown, in the embodiment of the present solution, a safety pressure relief valve 21 is provided on the gas storage tank 12. The safety pressure relief valve 21 is preferably provided on the top of the gas storage tank 12. When the entire air supply device encounters an extremely abnormal working condition, the safety pressure relief valve 21 releases the pressure of the gas storage tank 12 to ensure that the entire air supply device is within a safe and controllable range.

[0043] like Figure 6 As shown, in the embodiment of the present scheme, a pressure gauge 22 is provided on the gas storage tank 12. The pressure gauge 22 is used to obtain the corresponding system pressure value, which is a verification of the system's detected air pressure, so that the operating personnel can grasp the system safety dynamics in real time.

[0044] like Figure 4 and Figure 5 As shown, in the embodiment of this scheme, a purge joint 23 is reserved on the branch pipe 15. Air is used as the medium, which is non-toxic and pollution-free. The reserved purge joint 23 has a valve, such as Figure 8 As shown, every night when the photovoltaic panel faces the direction of the setting sun, the piston rod 7 in the cylinder 5 is extended the longest, and the gas pressure in the first chamber 8 is the highest. At this time, the purge joint 23 can be connected to a purge device or the valve can be directly opened for purge. The high-pressure air in the first chamber 8 is used to purge the surface of the photovoltaic panel to keep the surface of the photovoltaic panel clean and improve the power generation efficiency. During the purge process, the gas storage tank 12 can also be depressurized until it returns to the state shown in FIG. Figure 7 The tilt angle shown allows the photovoltaic panel to return to the tilt angle facing the direction of sunrise sunlight. Pressure relief can also be performed at the gas storage tank 12 to allow the photovoltaic panel to return to the tilt angle facing the direction of sunrise sunlight.

[0045] like Figure 5 As shown, in the embodiment of the present 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 for joint adjustment, comprising a plurality of photovoltaic support groups, wherein a single photovoltaic support group comprises a column (1), a bearing seat (2), a main beam (3) and a support frame (4), wherein the bearing seat (2) is fixedly arranged at the top of the column (1), a bearing is arranged in the bearing seat (2), the main beam (3) is inserted into the bearing, the support frame (4) is fixedly arranged on the main beam (3), and an adjustment mechanism is arranged on the column (1) to drive the main beam (3) and the support frame (4) to rotate around the central axis of the bearing, wherein the characteristics are: The regulating mechanism comprises a cylinder (5), a piston (6) and a piston rod (7). One end of the cylinder (5) is hingedly arranged on a column (1). The cylinder (5) has a piston cavity inside. The piston (6) is arranged in the piston cavity. One side of the piston (6) is a first chamber (8). The other side of the piston (6) is a second chamber (9). The second chamber (9) is provided with a compression spring (10). One end of the piston rod (7) is fixedly connected to the piston (6). The other end of the piston rod (7) extends out of the cylinder (5) and is hingedly arranged on the support frame (4). The piston rod (7) has a first chamber (8). The invention relates to a photovoltaic power generation system comprising: a first state and a second state, wherein 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) is gradually extended out of the cylinder (5); and 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) is gradually retracted into the cylinder (5). The invention also includes an air supply device, wherein a set of air supply devices is connected in parallel to a plurality of photovoltaic brackets, and the first chambers (8) of the cylinders (5) arranged on the plurality of photovoltaic brackets are all connected to the air supply device through pipelines.

2. The photovoltaic bracket according to claim 1, characterized in that: The air supply device comprises an air compressor (11), an air storage tank (12), a connecting pipe (13) and a plurality of branch pipes (15); the air compressor (11) is connected to the air storage tank (12) via the connecting pipe (13); a check valve (16) is arranged on the connecting pipe (13); the air storage tank (12) is equipped with a gas supply main pipe (14); and the first chamber (8) of the cylinder (5) arranged on each group of photovoltaic brackets is connected to the gas supply main pipe (14) via the branch pipe (15).

3. The photovoltaic bracket according to claim 2, characterized in that: The gas storage tank (12) is connected to an exhaust pipe (17), and the exhaust pipe (17) is provided with an electric valve (18) for controlling the internal air pressure of the gas storage tank (12).

4. The photovoltaic bracket according to claim 2, characterized in that: The connecting pipe (13) is provided with a pressure switch (19) for controlling the start and stop of the air compressor (11).

5. The photovoltaic bracket according to claim 2, characterized in that: A manual ball valve (20) is provided on the connecting pipe (13), the gas transmission main pipe (14), the branch pipe (15) and the exhaust pipe (17).

6. The photovoltaic bracket according to claim 2, characterized in that: The gas storage tank (12) is provided with a safety pressure relief valve (21).

7. The photovoltaic bracket according to claim 2, characterized in that: The gas storage tank (12) is provided with a pressure gauge (22).

8. The photovoltaic bracket according to claim 2, characterized in that: A purge joint (23) is reserved on the branch pipe (15).

9. The photovoltaic support according to 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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