An adaptive variable load adjustable photovoltaic support system

Abstract

This invention belongs to the field of photovoltaic equipment technology and discloses an adaptive variable load adjustable photovoltaic support system, including a support frame, a support bracket, and an adjustment device. The adjustment device includes an adjustment cylinder, a support suction cup, a drive component, and a reset component. The drive component uses a fan blade and a cam to drive a pressing air pump, which automatically draws air using wind power. It first drives the adjustment cylinder to adjust the photovoltaic panel to a horizontal position to reduce the wind load, and then drives the support suction cup to adhere to the ground and draw out the inner cavity to form a vacuum adsorption, which counteracts the airflow lift of the horizontal photovoltaic panel. The reset component achieves automatic air replenishment and reset after the wind stops through a centrifugal sealing structure, without the need for external power or ground anchoring. This invention can adapt to strong wind conditions, and has the characteristics of wind resistance, uplift resistance, and flexible relocation. It is suitable for mobile photovoltaic power stations, temporary construction sites, and other scenarios.

Description

Technical Field

[0001] This solution belongs to the field of photovoltaic equipment technology, specifically involving an adaptive variable load adjustable photovoltaic support system. Background Technology

[0002] Photovoltaic technology is an important way to convert solar energy into electrical energy and is widely used in the field of clean energy. Photovoltaic brackets are the load-bearing components of photovoltaic systems, mainly used to fix and support photovoltaic panels, ensuring their installation in various application scenarios.

[0003] To improve solar energy reception, photovoltaic (PV) panels are typically installed at a tilt angle to maximize the absorption of solar radiation. However, due to their large-area, plate-like structure, the tilted panel has a significant windward surface area, making it susceptible to substantial wind loads in strong winds, potentially leading to the collapse of the support structure. Therefore, it is necessary to adaptively adjust the tilt angle of the PV panels so that they can horizontalize in strong winds, thereby reducing the wind-facing area and minimizing the wind load on the panel's windward side.

[0004] In the existing photovoltaic support structure, the patent document with publication (announcement) number CN119182348A discloses a photovoltaic support, photovoltaic module and its control method. The photovoltaic support includes a photovoltaic panel bracket for mounting photovoltaic panels, a base, a power mechanism, a first adjustment mechanism and a second adjustment mechanism. The base serves as the base of the photovoltaic support and is directly fixed to the mounting surface, which makes the photovoltaic support have good overall stability and improves the overall wind resistance performance of the photovoltaic support.

[0005] For example, the aforementioned photovoltaic (PV) support system uses an adjustment mechanism to change the tilt angle of the PV panels, allowing them to remain horizontal in windy conditions and reducing wind load on the windward side. However, while the windward area is significantly reduced when the PV panels are horizontal, they also face lift issues under airflow. The principle behind this is (e.g.) Figure 1 As shown in the diagram, when wind flows across the surface of a horizontal photovoltaic panel, according to Bernoulli's principle, the airflow above the panel is faster, while the airflow below the panel is relatively slower due to the presence of supports and other structures. This creates a pressure difference between the upper and lower surfaces of the photovoltaic panel, generating an upward lift force F. This lift force can cause the photovoltaic panel to be lifted upwards, placing a significant upward pull on the connection between the support and the ground, which can still affect the operation of the photovoltaic system. Although in practice, the support can be anchored to the ground with bolts, in temporary construction sites and mobile photovoltaic application scenarios, the photovoltaic system needs to be moved and redeployed in real time according to the construction progress or power demand. Fixing the support to the ground is inconvenient for disassembly, assembly, and flexible relocation in these scenarios. Summary of the Invention

[0006] This invention provides an adaptive variable load adjustable photovoltaic support system to solve the problem of photovoltaic supports easily overturning in strong wind conditions.

[0007] This invention provides an adaptive variable load adjustable photovoltaic support system, including a support frame and a bracket for mounting photovoltaic panels. The bracket has two opposing hinged ends, one of which is hinged to the support frame. The system also includes an adjustment device comprising: An adjusting cylinder, wherein the cylinder body of the adjusting cylinder is hinged to another hinged end of the support frame, and the piston rod end of the adjusting cylinder is hinged to the support frame; A support suction cup is provided at the bottom of the support frame; A drive assembly includes a fan blade and a press-operated air pump. The fan blade is rotatably mounted on a support frame, and the press-operated air pump is fixedly mounted on the support frame. A cam is fixedly connected to the fan blade, and the trigger end of the press-operated air pump faces the cam. The cam is used to intermittently abut the trigger end of the press-operated air pump. The air inlet of the press-operated air pump is connected to the air outlet of the rod chamber of the regulating cylinder through a first pipe, and the air inlet of the press-operated air pump is connected to the inner cavity of the support suction cup through a second pipe. The press-operated air pump is provided with an air outlet for discharging gas from the pump. The first pipe and the second pipe are respectively provided with a first one-way valve and a second one-way valve for allowing gas to flow unidirectionally into the air pump.

[0008] Furthermore, it also includes a tripod, on which the support frame is mounted.

[0009] Furthermore, the adjustment device also includes a support cylinder, which is fixedly mounted on a support frame. The piston rod of the support cylinder is positioned towards the bottom of the support frame, and the end of the piston rod is fixedly connected to a support suction cup. The air inlet of the rodless chamber of the support cylinder is connected to the air outlet of a pressing air pump through a third pipe. The third pipe is equipped with a third one-way valve for allowing gas to flow unidirectionally into the rodless chamber of the support cylinder.

[0010] Furthermore, the air outlet of the rod chamber of the supporting cylinder is connected to the inner cavity of the supporting suction cup through a fourth pipe, and the fourth pipe is provided with a fourth one-way valve for allowing gas to flow unidirectionally into the inner cavity of the supporting suction cup; the pressing air pump is used to extract gas from the inner cavity of the supporting suction cup after the supporting suction cup is in contact with the ground.

[0011] Furthermore, the adjustment device also includes a reset assembly, which includes a turntable and a sealing ball. The turntable is coaxially and fixedly connected to the fan blade. The turntable has a cavity, and a through hole is formed in the side wall of the turntable. The through hole communicates with the cavity. The sealing ball is disposed in the through hole and is connected to a tension spring. The other end of the tension spring is fixedly connected to the cavity. The sealing ball is used to seal the through hole when the fan blade rotates and to move away from the through hole when the fan blade stops rotating. The air inlet of the rod chamber of the adjustment cylinder is connected to the cavity through a fifth pipe. The fifth pipe is provided with a fifth one-way valve for allowing gas to flow unidirectionally into the rod chamber of the adjustment cylinder.

[0012] Furthermore, the inner cavity of the support suction cup is connected to the cavity through a sixth pipe, and the sixth pipe is equipped with a sixth one-way valve for allowing gas to flow unidirectionally into the inner cavity of the support suction cup.

[0013] Furthermore, the air inlet of the rod chamber of the supporting cylinder is connected to the cavity through a seventh pipe, and the seventh pipe is provided with a seventh one-way valve for allowing gas to flow unidirectionally into the rod chamber of the supporting cylinder.

[0014] Furthermore, both the adjusting cylinder and the supporting cylinder are equipped with springs inside their cylinder bodies. One end of each set of springs is fixedly connected to the cylinder body of the adjusting cylinder and the supporting cylinder, respectively, and the other end is fixedly connected to the piston of the adjusting cylinder and the supporting cylinder, respectively.

[0015] Furthermore, a pressure relief valve is provided on the third pipeline.

[0016] Furthermore, the support suction cup is equipped with a manual valve, which is connected to the inner cavity of the support suction cup.

[0017] Compared with the prior art, the advantages of this application are as follows: 1. This application, on the one hand, adjusts the photovoltaic panel to a horizontal state by adjusting the cylinder to drive the support frame to swing, thereby reducing the windward area and reducing the frontal wind load; on the other hand, it uses the support suction cup to extract the inner cavity to form a vacuum adsorption, adsorbing the entire support frame to the ground, so as to counteract the upward force generated by the pressure difference between the upper and lower surfaces of the horizontal photovoltaic panel, thereby improving the wind resistance from both the frontal wind resistance and vertical pull-out resistance aspects.

[0018] 2. Existing adaptive windproof brackets mostly rely on wind speed sensors, electric actuators and electronically controlled valve groups to achieve attitude adjustment. This solution uses the fan blades to rotate due to airflow, which drives the cam to intermittently drive the press air pump to generate pneumatic power. This is combined with a one-way valve group and a reset component to achieve mechanical control, without the need for an external power supply and electronic control components.

[0019] 3. During the windy phase, when strong winds trigger, the gas in the regulating cylinder is extracted first to level the photovoltaic panel and reduce the frontal wind load. After the regulating cylinder is in position and the negative pressure in the pipeline rises to the threshold, the suction cup extraction pipeline is automatically activated to establish suction force. During the reset phase, the centrifugal sealing structure automatically completes the cylinder gas replenishment, suction cup vacuum breaking, and piston retraction reset, allowing the photovoltaic panel to return to its initial power generation tilt angle.

[0020] 4. This solution relies on adsorption force to connect the support to the ground. During deployment, it only needs to be placed on a flat surface to automatically complete the adsorption and fixation even in strong winds. After the wind disappears, the vacuum is automatically broken and the fixation is released, which facilitates the overall transfer and deployment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the existing technology; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the adjusting device of the present invention; Figure 5 This is a schematic diagram of the overall pipeline connection of the regulating device of the present invention; Figure 6 This is a schematic diagram of the pipe connection of the regulating device of the present invention in a windy condition; Figure 7 This is a schematic diagram of the pipe connection of the regulating device of the present invention in the state of wind stop.

[0022] The reference numerals in the accompanying drawings include: support frame 1, photovoltaic panel 2, support bracket 3, adjusting device 4, adjusting cylinder 41, rod chamber air outlet 411, first pipe 412, first one-way valve 413, rod chamber air inlet 414, fifth pipe 415, fifth one-way valve 416, support suction cup 42, second pipe 421, second one-way valve 422, sixth pipe 423, sixth one-way valve 424, manual valve 425, drive assembly 43, fan blade 431, press-type air pump 432, and cam 433. 434. Three-way connector, 44. Support cylinder, 441. Rodless chamber air inlet, 442. Third pipe, 443. Third check valve, 444. Fourth pipe, 445. Fourth check valve, 446. Rod chamber air inlet, 447. Seventh pipe, 448. Seventh check valve, 449. Pressure relief valve, 4410. Rod chamber air outlet, 45. Reset assembly, 45. Turntable, 451. Sealing ball, 452. Cavity, 453. Through hole, 454. Tension spring, 455. Spring, 456. Rotary air connector, 457. Four-way connector, 458. Tripod. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] The following is in conjunction with the appendix Figure 2-7 This invention describes an adaptive variable load adjustable photovoltaic support system according to an embodiment of the present invention. The system mainly includes a support frame 1, a support bracket 3, and an adjustment device 4. The support frame 1 has a columnar structure. The upper surface of the support bracket 3 is used to fix and install photovoltaic panels 2. The support bracket 3 has two spaced-apart hinged ends along its length. One hinged end is rotatably connected to the upper part of the support frame 1 via a hinge shaft, and the other hinged end cooperates with the adjustment device 4. The extension and retraction of the adjustment device 4 drives the support bracket 3 to swing back and forth around the hinge shaft, thereby adjusting the tilt angle of the photovoltaic panels 2. To improve overall support stability and site adaptability, a tripod 5 is also provided. The lower outer wall of the support frame 1 is fixedly installed on the top platform of the tripod 5. The tripod 5 adopts an outward-expanding support structure, and anti-slip pads can be installed at the bottom of the legs, thereby evenly distributing the overall load to the ground. This system is suitable for temporary construction sites, mobile photovoltaic power stations, and other application scenarios that do not require permanent anchoring, enabling rapid deployment and relocation.

[0027] like Figures 4-7As shown, the power for the adjustment device 4 is provided by the drive assembly 43. The drive assembly 43 is mounted as a whole in the middle of the support frame 1, and includes a fan blade 431 and a pressing air pump 432. The fan blade 431 is coaxially mounted on the support frame 1 via a horizontal rotating shaft, and can rotate autonomously around the rotating shaft under the action of external airflow. The press-type air pump 432 is fixedly mounted on the support frame 1 via a mounting base and is located beside the fan blade 431. The elastic trigger end of the press-type air pump 432 is set facing the radial side of the rotating shaft. A cam 433 is coaxially fixedly connected to the rotating shaft of the fan blade 431. The cam 433 has a blind hole (not shown) coaxially opened for the support frame 1 to pass through. The outer circumferential wheel surface of the cam 433 is arranged opposite to the trigger end of the press-type air pump 432. When the fan blade 431 is driven to rotate by wind, the cam 433 rotates synchronously with the rotating shaft. The flange of the cam 433 intermittently presses against the trigger end of the press-type air pump 432 as it rotates circumferentially, causing the pump chamber volume of the press-type air pump 432 to change, producing reciprocating suction and pumping actions. The press-type air pump 432 has a single air inlet port. To achieve parallel air extraction from two air paths, a three-way connector 434 is sealed to the air inlet port via a branch pipe. The two air extraction lines are respectively connected to the other two ports of the three-way connector 434, converging into the air inlet of the press-type air pump 432. It should be noted that the press-type air pump 432 in this embodiment is a press-type air pump 432 that can automatically reset after being pressed, i.e., an airbag structure. When the air inlet of the press-type air pump 432 can no longer draw in air, the press-type air pump 432 will not reset to its initial state, thus preventing gas from being discharged from the outlet when the cam 433 presses against the trigger end of the press-type air pump 432.

[0028] like Figures 4-7As shown, the adjustment device 4 also includes an adjustment cylinder 41, which is used to directly drive the support frame 3 to swing, thereby adjusting the tilt angle of the photovoltaic panel 2. The bottom end of the cylinder body of the adjustment cylinder 41 is hinged to the other hinged end of the support frame 3, and the top end of the piston rod of the adjustment cylinder 41 is hinged to the bottom side wall of the support frame 1. The rod chamber of the regulating cylinder 41 has a rod chamber outlet 411 on its side wall. The inner end of the rod chamber outlet 411 is connected to the rod chamber of the regulating cylinder 41. The outer end of the rod chamber outlet 411 is connected to one of the interfaces of the three-way connector 434 through the first pipe 412, and then connected to the air inlet of the pressing air pump 432. A first one-way valve 413 is also installed in series on the first pipe 412. The conduction direction of the first one-way valve 413 is set to flow unidirectionally from the rod chamber of the regulating cylinder 41 to the air inlet of the pressing air pump 432, allowing gas to be drawn out of the rod chamber of the regulating cylinder 41, preventing the gas from flowing back and causing the cylinder piston rod of the regulating cylinder 41 to retract. When the outside wind increases and the fan blade 431 drives the pressing air pump 432 to work continuously, the pressing air pump 432 continuously draws air from the rod chamber of the regulating cylinder 41 through the first pipe 412, so that a negative pressure is formed in the rod chamber. Under the action of the pressure difference on both sides, the piston moves towards the rod chamber side, causing the piston rod of the regulating cylinder 41 to extend, thereby driving the support frame 3 to swing upward, so that the photovoltaic panel 2 is gradually adjusted from the tilted state to the horizontal state, thereby reducing the windward area, reducing the wind load on the front of the photovoltaic panel 2, and preventing the support frame 1 and the support frame 3 from overturning due to the impact of strong wind.

[0029] like Figures 4-7As shown, to counteract the airflow lift of the photovoltaic panel 2 in a horizontal state and prevent the support frame 3 from being lifted upwards, the adjusting device 4 is also equipped with a support cylinder 44 and a support suction cup 42. The support frame 1 has a receiving cavity with a bottom opening along its axial direction. The support cylinder 44 is fixedly installed in the receiving cavity of the support frame 1 in the vertical direction. The piston rod of the support cylinder 44 extends vertically downwards towards the bottom of the support frame 1, and the lower end of the piston rod is fixedly connected to the top of the support suction cup 42 through a connecting flange. The support suction cup 42 adopts a cup-shaped flexible rubber sealing structure, with the open end facing the ground, which can adapt to flat or slightly rough ground surfaces to form a seal. The rodless chamber of the supporting cylinder 44 has a rodless chamber inlet 441 on its side wall. The inner end of the rodless chamber inlet 441 is connected to the rodless chamber of the supporting cylinder 44, and the outer end is connected to the outlet of the pressing air pump 432 through a third pipe 442. A third one-way valve 443 is installed in series on the third pipe 442. The conduction direction of the third one-way valve 443 is unidirectional from the outlet of the pressing air pump 432 to the rodless chamber of the supporting cylinder 44, preventing the gas in the rodless chamber from flowing back. The pressing air pump 432 draws gas from the rod chamber of the regulating cylinder 41, pumps it into the third pipe 442 through the outlet of the pressing air pump 432, and then into the rodless chamber of the supporting cylinder 44. This pushes the piston rod of the supporting cylinder 44 to extend downward, causing the supporting suction cup 42 to move towards the ground until the lower end face of the supporting suction cup 42 is in contact with the ground. It should be noted that, to prevent excessive pressure in the rodless chamber of the support cylinder 44 from damaging the cylinder or causing excessive compression and deformation of the support suction cup 42, a pressure relief valve 449 is installed on the third pipe 442. The inlet of the pressure relief valve 449 is connected to the third pipe 442, and the outlet is connected to the outside atmosphere. When the air pressure in the third pipe 442 exceeds the set safety threshold, the pressure relief valve 449 automatically opens to release air. Secondly, when placing this device, try to choose a relatively flat surface below the support suction cup 42 to avoid gaps between the support suction cup 42 and the ground. A manual valve 425 is also installed on the support suction cup 42. The valve port of the manual valve 425 is connected to the inner cavity of the support suction cup 42. In windy conditions requiring manual relocation or emergency removal of the suction, the manual valve 425 can be manually opened to allow air to enter the suction cup cavity, quickly breaking the vacuum and improving the convenience of equipment maintenance and relocation operations.

[0030] like Figures 4-7As shown, the rod chamber sidewall of the supporting cylinder 44 has a rod chamber outlet 4410. The inner end of the rod chamber outlet 4410 is connected to the rod chamber of the supporting cylinder 44, and the outer end is connected to the inner cavity of the supporting suction cup 42 through the fourth pipe 444. A fourth one-way valve 445 is installed on the fourth pipe 444. The conduction direction of the fourth one-way valve 445 is one-way flow from the rod chamber of the supporting cylinder 44 to the inner cavity of the supporting suction cup 42. During the downward extension of the piston of the supporting cylinder 44, the volume of the rod chamber gradually decreases. The pre-stored gas in the chamber is discharged into the inner cavity of the supporting suction cup 42 through the fourth pipe 444. This can blow away the ground directly below the supporting suction cup 42 before the suction cup is in contact with the ground, and blow away the dust in the inner cavity of the supporting suction cup 42, which facilitates the subsequent adsorption of the supporting suction cup 42 with the ground.

[0031] like Figures 4-7 As shown, the inner cavity of the support suction cup 42 is also connected to another interface of the three-way connector 434 through the second pipe 421, thereby connecting to the air inlet of the pressing air pump 432. A second one-way valve 422 is installed in series on the second pipe 421. The conduction direction of the second one-way valve 422 is unidirectional flow from the inner cavity of the support suction cup 42 to the air inlet of the pressing air pump 432. A pressure sequence valve 426 is also connected in series on the second pipe 421. The pressure sequence valve 426 is located upstream of the second one-way valve 422, and its opening pressure is set to the negative pressure value of the pipe after the piston rod of the regulating cylinder 41 is extended to the correct position. The function of the pressure sequence valve 426 is to control the gas extraction sequence: when the support cylinder 44 is not fully extended and the support suction cup 42 is not in contact with the ground, the negative pressure in the second pipe 421 has not reached the set threshold, the pressure sequence valve 426 remains closed, and the press air pump 432 only extracts the gas in the rod chamber of the regulating cylinder 41, prioritizing the tilt angle adjustment of the photovoltaic panel 2; when the support cylinder 44 is fully extended and the support suction cup 42 is in contact with the ground, the piston rod of the regulating cylinder 41 is fully extended, the negative pressure on the side of the first pipe 412 continues to rise and is transmitted to the second pipe 421, causing the negative pressure in the second pipe 421 to rise to the set threshold, the pressure sequence valve 426 automatically opens, and the press air pump 432 then extracts the gas in the inner cavity of the support suction cup 42, so that the inner cavity of the support suction cup 42 gradually forms a vacuum environment, thereby pressing the support frame 1 firmly on the ground without the need for bolt anchoring to the ground, adapting to the rapid disassembly and relocation needs of mobile photovoltaic scenarios. It should be noted that the pressure sequence valve 426 can also be omitted, and the opening pressure of the second check valve 422 can be set to be greater than the opening pressure of the first check valve 413, so that the gas in the rod chamber of the regulating cylinder 41 is extracted first, and then the gas in the suction cup 42 is extracted.

[0032] like Figures 4-7As shown, to achieve automatic system reset after wind weakening and restore the photovoltaic panel 2 to its initial power generation tilt angle, the adjustment device 4 is also equipped with a reset component 45. The reset component 45 includes a turntable 451, sealing balls 452, tension springs 455, and a rotary air connector 457. The turntable 451 is coaxially fixedly connected to the shaft of the fan blade 431 and can rotate synchronously with the fan blade 431. The turntable 451 has a hollow disc structure with an annular cavity 453 inside. Several radially penetrating through holes 454 are opened on the circumferential sidewall of the turntable 451, and each through hole 454 is connected to the cavity 453. The number of sealing balls 452 corresponds one-to-one with the number of through holes 454, and they are all set inside the cavity 453 and in the corresponding through hole 454. Each sealing ball 452 is connected to a tension spring 455 on the side facing the cavity 453, and the other end of the tension spring 455 is fixedly connected to the inner wall of the cavity 453. When the fan blade 431 rotates at high speed with strong wind, the sealing ball 452 moves radially outward under the action of centrifugal force, blocking the outer port of the through hole 454, so that the cavity 453 forms a sealed space; when the external wind force weakens and the fan blade 431 stops rotating, the centrifugal force disappears, and the sealing ball 452 retracts inward under the action of the tension spring 455, disengaging from the port of the through hole 454, so that the cavity 453 is connected to the outside atmosphere through the through hole 454. Since the turntable 451 rotates continuously with the fan blade 431, and the air passage connected to the cavity 453 is a fixed passage, in order to prevent the passage from twisting or tangling as the turntable rotates, a rotary air connector 457 is provided to achieve sealed connection of the air passage; the rotary air connector 457 is installed at the axial center end of the turntable 451, and its rotating side is sealed and fixedly connected to the central shaft hole of the turntable 451, rotates synchronously with the turntable 451 and maintains communication with the cavity 453; its fixed side remains relatively stationary with the external passage and is used to connect to each fixed air passage.

[0033] like Figures 4-7As shown, the fixed-side air outlet of the rotary air connector 457 is connected to a four-way connector 458, from which three independent air paths branch out, corresponding to the air replenishment of the regulating cylinder 41, the vacuum breaking of the support suction cup 42, and the reset of the support cylinder 44, respectively. The first path is the air replenishment pipeline for the regulating cylinder 41: the rod chamber sidewall of the regulating cylinder 41 is also provided with a rod chamber air inlet 414. The inner end of the rod chamber air inlet 414 is connected to the rod chamber of the regulating cylinder 41, and the outer end is connected to one of the interfaces of the four-way connector 458 through the fifth pipe 415, and then connected to the cavity 453 through the rotary air connector 457. A fifth one-way valve 416 is installed in series on the fifth pipe 415. The conduction direction of the fifth one-way valve 416 is one-way flow from the cavity 453 to the rod chamber of the regulating cylinder 41, allowing only outside air to replenish the rod chamber of the regulating cylinder 41. The second path is the vacuum path for the suction cup: the inner cavity of the supporting suction cup 42 is connected to one of the interfaces of the four-way connector 458 through the sixth pipe 423, and then connected to the cavity 453 through the rotary air connector 457. A sixth one-way valve 424 is installed on the sixth pipe 423. The conduction direction of the sixth one-way valve 424 is from the cavity 453 to the inner cavity of the supporting suction cup 42, allowing only outside air to enter the inner cavity of the suction cup to break the vacuum, preventing the gas from flowing back into the cavity 453 during the evacuation stage of the supporting suction cup 42. The third path is the reset air path for the support cylinder 44: The rod chamber sidewall of the support cylinder 44 has a rod chamber air inlet 446. The inner end of the rod chamber air inlet 446 is connected to the rod chamber of the support cylinder 44, and the outer end is connected to the last interface of the four-way connector through the seventh pipe 447, and then connected to the cavity 453 through the rotary air connector 457. A seventh one-way valve 448 is installed on the seventh pipe 447. The conduction direction of the seventh one-way valve 448 is one-way flow from the cavity 453 to the rod chamber of the support cylinder 44, allowing only outside air to enter the rod chamber of the support cylinder 44 to push the piston to reset.

[0034] like Figures 4-7 As shown, to further improve the smoothness of the reset action, springs 456 are installed in the rodless chambers of the adjusting cylinder 41 and the supporting cylinder 44. One end of each set of springs 456 is fixedly connected to the inner wall of the corresponding cylinder, and the other end is fixedly connected to the piston end face of the corresponding cylinder. The springs 456 always apply an elastic thrust towards the rod chamber side to the piston. During the strong wind suction stage, the negative pressure and air pressure thrust generated by the pressurized air pump 432 overcome the elastic force of the springs 456 to complete the extension of the piston rod. When the wind stops and the air is replenished for reset, the springs 456 can work together with the incoming air pressure to push the piston rod to reset and retract, accelerating the downward swing of the support frame 3 and the retraction of the support suction cup 42, so that the photovoltaic panel 2 can quickly return to the initial power generation tilt angle after the wind passes.

[0035] like Figures 2-7As shown, the complete workflow of this system is as follows: Under normal windless conditions, the photovoltaic panel 2 is arranged at the preset optimal power generation tilt angle; at this time, the fan blade 431 is stationary, the sealing ball 452 is in a retracted state under the action of the tension spring 455, the cavity 453 is connected to the atmosphere, and the pistons of each cylinder remain in a retracted state under the action of the spring 456. When the external wind force gradually increases, the fan blade 431 starts to rotate under the drive of the airflow, driving the cam 433 to intermittently press the press pump 432. At the same time, the sealing ball 452 is blocked by centrifugal force to block the through hole 454, so that the cavity 453 forms a sealed space, and the reset air passage is closed; the press pump 432 first draws gas from the rod chamber of the regulating cylinder 41 through the first pipe 412, so that the piston rod of the regulating cylinder 41 extends, pulling the photovoltaic panel 2 upward to a horizontal state (e.g., Figure 3 As shown in the figure, the windward area of ​​the photovoltaic panel 2 is reduced to reduce the frontal wind load; the gas extracted from the regulating cylinder 41 is pumped into the rodless chamber of the support cylinder 44, pushing the piston rod of the support cylinder 44 to extend downward, causing the support suction cup 42 to adhere to the ground; after the support suction cup 42 adheres, the negative pressure in the second pipe 421 rises to the threshold, at which point the press air pump 432 switches to extracting gas from the inner chamber of the support suction cup 42, forming a vacuum suction force, which counteracts the upward force generated by the pressure difference between the upper and lower surfaces of the horizontal photovoltaic panel 2, preventing it from being lifted by the wind. When the wind weakens and disappears, the fan blades 431 stop rotating, the centrifugal force disappears, and the sealing ball 452 resets to the through hole 454 under the action of the tension spring 455. Outside air enters the cavity 453 and is supplied to each chamber through the rotary air connector 457 and the four-way connector 458 respectively: air is supplied to the rod chamber of the regulating cylinder 41 to balance the pressure difference on both sides of the piston of the regulating cylinder 41; air is supplied to the inner cavity of the support suction cup 42 to break the vacuum adsorption; air is supplied to the rod chamber of the support cylinder 44 to push the piston of the support cylinder 44 to retract upward; with the elastic force of the spring 456, the piston rod of the regulating cylinder 41 drives the photovoltaic panel 2 to reset to the power generation tilt angle, the support cylinder 44 retracts and drives the support suction cup 42 to lift off the ground, and the system returns to the initial state. The whole process does not require external energy or human intervention, which solves the problems of existing photovoltaic brackets being easy to overturn in strong winds, being easily affected by lift in the horizontal state, and the inconvenience of relocation of the anchoring structure.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adaptive variable load adjustable photovoltaic support system, comprising a support frame (1) and a bracket (3) for mounting photovoltaic panels (2), the bracket (3) having two opposing hinged ends, one of which is hinged to the support frame (1); characterized in that, It also includes an adjustment device (4), which includes: Adjusting cylinder (41), the cylinder body of the adjusting cylinder (41) is hinged to the other hinge end of the support frame (3), and the piston rod end of the adjusting cylinder (41) is hinged to the support frame (1); A support suction cup (42) is provided at the bottom of the support frame (1); A drive assembly (43) includes a fan blade (431) and a press-operated air pump (432). The fan blade (431) is rotatably mounted on a support frame (1), and the press-operated air pump (432) is fixedly mounted on the support frame (1). A cam (433) is fixedly connected to the fan blade (431), and the trigger end of the press-operated air pump (432) is positioned facing the cam (433). The cam (433) is used to intermittently abut the trigger end of the press-operated air pump (432). The air inlet of the cylinder (41) is connected to the air outlet (411) of the rod chamber of the regulating cylinder (41) through the first pipe (412). The air inlet of the pressing air pump (432) is connected to the inner cavity of the support suction cup (42) through the second pipe (421). The pressing air pump (432) is provided with an air outlet for discharging the gas inside the pump. The first pipe (412) and the second pipe (421) are respectively provided with a first one-way valve (413) and a second one-way valve (422) for allowing gas to flow into the air pump (432) in one direction.

2. The adaptive variable load adjustable photovoltaic support system according to claim 1, characterized in that: It also includes a tripod (5), on which the support frame (1) is mounted.

3. The adaptive variable load adjustable photovoltaic support system according to claim 2, characterized in that: The adjustment device (4) further includes a support cylinder (44), which is fixedly mounted on the support frame (1). The piston rod of the support cylinder (44) is positioned facing the bottom of the support frame (1), and the end of the piston rod is fixedly connected to the support suction cup (42). The rodless chamber air inlet (441) of the support cylinder (44) is connected to the air outlet of the pressing air pump (432) through a third pipe (442). The third pipe (442) is provided with a third one-way valve (443) for allowing gas to flow unidirectionally into the rodless chamber of the support cylinder (44).

4. The adaptive variable load adjustable photovoltaic support system according to claim 3, characterized in that: The rod chamber outlet (4410) of the support cylinder (44) is connected to the inner cavity of the support suction cup (42) through the fourth pipe (444). The fourth pipe (444) is provided with a fourth one-way valve (445) for allowing gas to flow unidirectionally into the inner cavity of the support suction cup (42). The pressing air pump (432) is used to extract the gas from the inner cavity of the support suction cup (42) after the support suction cup (42) is in contact with the ground.

5. The adaptive variable load adjustable photovoltaic support system according to claim 4, characterized in that: The adjusting device (4) further includes a reset assembly (45), which includes a turntable (451) and a sealing ball (452). The turntable (451) is coaxially fixedly connected to the fan blade (431). The turntable (451) has a cavity (453), and the side wall of the turntable (451) has a through hole (454) that communicates with the cavity (453). The sealing ball (452) is located inside the through hole (454) and is connected to a tension spring. 455), the other end of the tension spring (455) is fixedly connected to the cavity (453), the sealing ball (452) is used to seal the through hole (454) when the fan blade (431) rotates, and to move away from the through hole (454) when the fan blade (431) stops rotating; the rod chamber air inlet (414) of the regulating cylinder (41) is connected to the cavity (453) through the fifth pipe (415), and the fifth pipe (415) is provided with a fifth one-way valve (416) for allowing gas to flow into the rod chamber of the regulating cylinder (41) in one direction.

6. The adaptive variable load adjustable photovoltaic support system according to claim 5, characterized in that: The inner cavity of the support suction cup (42) is connected to the cavity (453) through the sixth pipe (423), and the sixth pipe (423) is provided with a sixth one-way valve (424) for allowing gas to flow into the inner cavity of the support suction cup (42) in one direction.

7. The adaptive variable load adjustable photovoltaic support system according to claim 6, characterized in that: The rod chamber air inlet (446) of the support cylinder (44) is connected to the cavity (453) through the seventh pipe (447), and the seventh pipe (447) is provided with a seventh one-way valve (448) for allowing gas to flow into the rod chamber of the support cylinder (44) in one direction.

8. The adaptive variable load adjustable photovoltaic support system according to claim 7, characterized in that: Both the regulating cylinder (41) and the supporting cylinder (44) are equipped with springs (456). One end of each set of springs (456) is fixedly connected to the cylinder body of the regulating cylinder (41) and the supporting cylinder (44), respectively, and the other end is fixedly connected to the piston of the regulating cylinder (41) and the supporting cylinder (44), respectively.

9. The adaptive variable load adjustable photovoltaic support system according to claim 8, characterized in that: The third pipeline (442) is equipped with a pressure relief valve (449).

10. The adaptive variable load adjustable photovoltaic support system according to claim 9, characterized in that: The support suction cup (42) is equipped with a manual valve (425), which is connected to the inner cavity of the support suction cup (42).

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