Angle-adjustable solar photovoltaic support and its solar power generation structure

Abstract

This invention discloses an angle-adjustable solar photovoltaic (PV) support structure and its solar power generation structure. The support structure includes a base, a main support rod, a PV frame, and a tilt adjustment structure. An innovative tilt support structure is provided between the PV frame and the base. This structure consists of a support arm and an arc-shaped support rail. One end of the support arm is vertically fixed to the PV frame, and the other end engages with the arc-shaped support rail via a sliding part. The arc-shaped support rail is fixed to the base via a support column. Its extension trajectory allows the angle α between the support arm and the base to continuously decrease from greater than 80° to less than 10° when the PV frame tilts, while the PV frame tilt angle θ increases from less than 10° to greater than 80°, achieving adaptive tilt adjustment. The solar power generation structure includes solar panels fixed within the PV frame. This design, through the coordinated operation of the support arm and the guide rail, automatically generates a stabilizing torque under large tilt angle conditions, significantly improving the support structure's wind resistance and adjustment stability.

Description

Technical Field

[0001] This invention relates to the field of solar photovoltaic mounting systems, specifically to angle-adjustable solar photovoltaic mounting systems and their solar power generation structures. Background Technology

[0002] Solar photovoltaic (PV) mounting systems, as key support structures for PV power generation systems, are widely used in unobstructed environments such as flat ground, deserts, and grasslands to ensure that PV panels receive optimal sunlight. These environments are typically open and sunny, but also susceptible to strong winds due to the lack of natural barriers, especially during seasonal gales or extreme weather conditions, requiring the mounting systems to withstand significant wind loads. Existing mounting systems mainly include fixed and adjustable types. Adjustable mounting systems adapt to changes in solar altitude angle by altering the tilt angle of the PV panels, but their structural design often prioritizes ease of adjustment over adequate wind resistance.

[0003] When existing adjustable support structures are adjusted to a larger tilt angle, the wind-exposed area of ​​the photovoltaic panels increases significantly, leading to a substantial rise in wind load moments. Especially when the tilt angle exceeds 30°, the bending resistance of the support structure faces severe challenges, easily resulting in problems such as support rod deformation, loosening of hinge points, or even complete overturning. Furthermore, traditional support structures lack a wind load adaptive mechanism and cannot dynamically adjust their wind resistance according to changes in tilt angle. This necessitates manual intervention to reduce the tilt angle under extreme weather conditions, impacting power generation efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide an angle-adjustable solar photovoltaic support structure and its solar power generation structure, aiming to automatically enhance wind resistance stability under different tilt angles by optimizing the mechanical structure of the support.

[0005] The technical solution of the present invention is as follows:

[0006] An adjustable solar photovoltaic bracket includes a bracket base, a main support rod, a photovoltaic frame, and a tilt adjustment structure. The main support rod is fixedly connected to the bracket base, the tilt adjustment structure is located between the main support rod and the photovoltaic frame, and a tilt support structure is provided between the photovoltaic frame and the bracket base.

[0007] The tilt support structure includes a support arm and an arc-shaped support rail. One end of the support arm is fixedly connected to one side of the photovoltaic frame. The support arm is perpendicular to the photovoltaic frame. The other end of the support arm is provided with a sliding part that cooperates with the arc-shaped support rail. The arc-shaped support rail is fixed to the bracket base by at least one support column. The extension trajectory of the arc-shaped support rail is such that when the photovoltaic frame rotates around the main support rod to adjust the tilt angle, the sliding part slides along the arc-shaped support rail, so that the angle α between the support arm and the bracket base continuously decreases from greater than 80° to less than 10°, while the tilt angle θ of the photovoltaic frame increases from less than 10° to greater than 80°.

[0008] In one possible implementation, the sliding part includes a rolling assembly and an axial limiting structure;

[0009] The rolling assembly includes at least one rotatable rolling element, and the axial limiting structure is used to prevent the rolling element from dislodging from the arc-shaped support guide.

[0010] The cross-section of the arc-shaped support guide rail is provided with an inwardly recessed limiting groove, which cooperates with the axial limiting structure to form a radial constraint.

[0011] In one possible implementation, the axial limiting structure includes a pin passing through the rolling element and extending into a limiting groove to prevent the rolling element from falling out of the arcuate support guide.

[0012] In one possible implementation, a stabilizing component is provided on one side of the support arm, which is used to provide gravity to the support arm toward the support base, and as the angle α between the support arm and the support base decreases, the center of gravity is closer to the middle of the support arm.

[0013] In one possible implementation, the stabilizing component includes a sliding track and a counterweight. The sliding track is located inside the support arm and extends from the middle of the support arm to one end of the support arm near the arc-shaped support guide rail. The extension direction of the sliding track forms an acute angle β with the axis of the support arm. The counterweight is located inside the sliding track and is slidably connected to the sliding track. When the angle α between the support arm and the support base decreases, the counterweight gradually moves towards the middle of the support arm under the action of gravity.

[0014] In one possible implementation, a traction component is connected between the counterweight and the arc-shaped support rail. The traction component is used to apply an additional pulling force toward the support base to the counterweight when the angle between the support arm and the support base decreases. The additional pulling force applied by the traction component to the counterweight is at its maximum when the angle α between the support arm and the support base reaches a set minimum.

[0015] In one possible implementation, the traction assembly includes a traction rope and a spring-loaded automatic winding mechanism. The spring-loaded automatic winding mechanism is fixed to the front end of an arc-shaped support rail. The front end of the arc-shaped support rail refers to the end where the angle α between the support arm and the bracket base continuously increases as the support arm moves toward that end. One end of the traction rope is fixed to and wound around the spring-loaded automatic winding mechanism, and the other end of the traction rope is connected to a counterweight.

[0016] In one possible implementation, the support column is provided with a plurality of columns, and the included angle γ between the support column and the bracket base at different positions satisfies the following: when the support arm moves, the included angle γ between the support column and the bracket base at the corresponding position decreases as the included angle α between the support arm and the bracket base decreases, and the included angle γ between the support column and the bracket base ranges from 30° to 90°.

[0017] A solar power generation structure includes a solar photovoltaic support as described above, wherein a solar panel is fixed within the photovoltaic frame, and the solar panel converts light energy into electrical energy.

[0018] The working principle and beneficial effects of this invention are as follows:

[0019] The technical solution of this invention achieves stable adjustment of the tilt angle of a photovoltaic frame through the linkage design of a support arm and an arc-shaped support rail. One end of the support arm is fixedly connected to the photovoltaic frame and maintains a vertical relationship, while the other end dynamically cooperates with the arc-shaped support rail through a sliding part. The arc-shaped support rail is fixed to the support base by a support column and extends along its specific trajectory. This allows the angle α between the support arm and the support base to continuously decrease from greater than 80° to less than 10° when the photovoltaic frame rotates around the main support rod to adjust the tilt angle, while the tilt angle θ of the photovoltaic frame increases from less than 10° to greater than 80°. During this movement, the sliding of the support arm along the rail generates an adaptive anti-overturning moment, and the extension trajectory of the arc-shaped support rail and the arrangement of the support column together form a progressive support force distribution. When the photovoltaic frame is in a large tilt angle state, the structural rigidity is enhanced through geometric constraints, thereby achieving dynamic stability during the tilt angle adjustment process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 These are schematic diagrams of the solar photovoltaic support structure in Example 1 and the solar power generation structure in Example 2.

[0022] Figure 2 This is a side view of the solar photovoltaic support structure in Example 1;

[0023] Figure 3 The diagram shows the structure of the solar photovoltaic support in Example 1 and the solar power generation structure in Example 2 after angle adjustment.

[0024] Figure 4 This is a side view of the solar photovoltaic support after angle adjustment in Example 1;

[0025] Figure 5 This is a diagram of the internal structure of the arc-shaped support rail in Example 1.

[0026] Explanation of reference numerals: 1. Support base; 2. Main support rod; 3. Photovoltaic frame; 4. Tilt adjustment structure; 5. Tilt support structure; 6. Sliding part; 7. Stabilizing component; 8. Traction component; 51. Support arm; 52. Arc-shaped support rail; 53. Support column; 54. Limiting groove; 61. Rolling element; 62. Pin; 71. Sliding rail; 72. Counterweight; 81. Traction rope; 82. Spring-type automatic winding mechanism; 100. Solar panel.

[0027] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Example 1

[0029] like Figures 1-5 As shown, this embodiment proposes an angle-adjustable solar photovoltaic support, including a support base 1, a main support rod 2, a photovoltaic frame 3, and a tilt angle adjustment structure 4. The main support rod 2 is fixedly connected to the support base 1, the tilt angle adjustment structure 4 is located between the main support rod 2 and the photovoltaic frame 3, and a tilt angle support structure 5 is provided between the photovoltaic frame 3 and the support base 1.

[0030] The tilt support structure 5 includes a support arm 51 and an arc-shaped support rail 52. One end of the support arm 51 is fixedly connected to one side of the photovoltaic frame 3. The support arm 51 is perpendicular to the photovoltaic frame 3. The other end of the support arm 51 is provided with a sliding part 6 that cooperates with the arc-shaped support rail 52. The arc-shaped support rail 52 is fixed to the bracket base 1 by at least one support column 53. The extension trajectory of the arc-shaped support rail 52 is as follows: when the photovoltaic frame 3 rotates around the main support rod 2 to adjust the tilt angle, the sliding part 6 slides along the arc-shaped support rail 52, so that the angle α between the support arm 51 and the bracket base 1 continuously decreases from greater than 80° to less than 10°, while the tilt angle θ of the photovoltaic frame 3 increases from less than 10° to greater than 80°.

[0031] The support base 1 serves as the installation foundation for the entire support system. It provides a stable support platform by being fixedly connected to the main support rod 2. Its firm connection to the ground ensures the stability of the overall structure under various tilt angles, effectively reducing the risk of displacement due to wind loads or its own weight. The main support rod 2, as the core load-bearing component, is fixedly connected to the support base 1 and the photovoltaic frame 3 at its upper and lower ends, forming a rigid support skeleton. During tilt angle adjustment, it bears the main bending moment and shear force, significantly improving the support's resistance to deformation. The photovoltaic frame 3 directly supports the photovoltaic modules and maintains their mounting plane. Its vertical fixed connection to the support arm 51 ensures that the photovoltaic panels are always in the optimal stress state, and the rigid structural design reduces panel distortion. The tilt angle adjustment structure 4, located between the main support rod 2 and the photovoltaic frame 3, provides controllable rotational freedom, allowing the photovoltaic frame 3 to precisely change its tilt angle around the axis of the main support rod 2, achieving flexible adjustment of the illumination angle. In this embodiment, a hydraulic push rod can be used as the tilt angle adjustment structure 4. The cylinder end of the hydraulic push rod is hinged to the middle of the main support rod 2, and the piston rod end is hinged to the back of the photovoltaic frame 3. The tilt angle is adjusted by controlling the extension and retraction of the piston rod through a hydraulic system, driving the photovoltaic frame 3 to rotate around the main support rod 2. Alternatively, an electric lead screw mechanism, a worm gear transmission mechanism, or a servo motor-driven rack and pinion mechanism can also be used for tilt angle adjustment. Hydraulic push rods, electric lead screws, worm gears, and servo motor-driven rack and pinion mechanisms are all existing technologies, and their specific internal structures and working methods will not be described in detail in this embodiment. Since the tilt angle adjustment structure 4 is not an improvement in this application, only the most basic components of the tilt angle adjustment structure 4 are shown in the accompanying drawings. The support arm 51 converts the tilt angle change of the photovoltaic frame 3 into linear motion along the guide rail by vertically fixing one end to the photovoltaic frame 3 and slidingly connecting the other end to the guide rail. Its rigid structure design continuously transmits support force during adjustment, effectively balancing wind load torque. The arc-shaped support guide rail 52 constrains the movement path of the sliding part 6 of the support arm 51 through a preset extension trajectory. Its curvature design ensures that the angle change between the support arm 51 and the bracket base 1 forms a reverse linkage with the tilt angle of the photovoltaic frame 3, automatically enhancing wind resistance stability when the tilt angle increases. The sliding part 6 serves as the interface between the support arm 51 and the guide rail. Through low-friction motion, it enables the support arm 51 to move smoothly along the guide rail. Its tight fit design ensures structural continuity during tilt adjustment, preventing swaying or jamming. The support column 53 is fixedly connected to the arc-shaped support guide rail 52 and the bracket base 1. Its multiple spaced columns form distributed support for the guide rail, optimizing the force transmission path to reduce the risk of localized deformation of the guide rail and increase the overall structural reliability of the bracket under high wind conditions.

[0032] In this embodiment, the sliding part 6 includes a rolling component and an axial limiting structure;

[0033] The rolling assembly includes at least one rotatable rolling element 61, and an axial limiting structure is used to prevent the rolling element 61 from dislodging from the arcuate support guide rail 52.

[0034] The cross-section of the arc-shaped support guide rail 52 is provided with an inwardly recessed limiting groove 54, which cooperates with the axial limiting structure to form a radial constraint.

[0035] The rolling assembly achieves low-friction relative movement between the support arm 51 and the arc-shaped support rail 52 through rotatable rolling elements 61. This rolling contact significantly reduces sliding resistance, making tilt adjustment of the photovoltaic frame 3 smoother and less labor-intensive, while also reducing mechanical wear and extending the service life of the support arm 51, arc-shaped support rail 52, and rolling assembly. The axial limiting structure physically constrains the rolling elements 61 to prevent accidental detachment from the arc-shaped support rail 52, ensuring a reliable connection between the support arm 51 and the rail under extreme wind loads or vibration conditions, thus improving the operational safety of the support system in harsh environments. The inwardly recessed limiting groove 54 on the arc-shaped support rail 52, together with the axial limiting structure, forms a complementary radial constraint system. Through geometric fit, it restricts the lateral displacement of the rolling elements 61, effectively controlling the swing amplitude of the support arm 51 during movement and increasing the stability of the tilt adjustment process. The radial constraint system, which is composed of the limiting groove 54 and the axial limiting structure, restricts the movement degree of freedom of the rolling element 61 in both directions, ensuring that the support arm 51 moves smoothly along the predetermined trajectory, preventing movement deviation caused by lateral force, and improving the tilt angle positioning accuracy.

[0036] In this embodiment, the axial limiting structure includes a pin 62 passing through the rolling element 61, and the pin 62 extends into the limiting groove 54 to prevent the rolling element 61 from falling out of the arc-shaped support guide rail 52.

[0037] The axial limiting structure forms a mechanical lock through the pin 62 passing through the rolling element 61. The design of the pin 62 extending at both ends and embedded in the limiting groove 54 forms a double anti-disengagement protection. This structure maintains a reliable connection between the rolling element 61 and the guide rail during the movement of the support arm 51, effectively preventing the rolling element 61 from accidentally disengaging under extreme working conditions, and significantly improving the safety and reliability of the support system. At the same time, the rigid constraint of the pin 62 can reduce the displacement deviation of the rolling element 61 in the vibration environment, ensuring the accuracy of the tilt angle adjustment.

[0038] In this embodiment, a stabilizing component 7 is provided on one side of the support arm 51. The stabilizing component 7 is used to provide gravity to the support arm 51 towards the support base 1, and as the angle α between the support arm 51 and the support base 1 decreases, the center of gravity of the support arm 51 moves closer to the middle of the support arm 51. The stabilizing component 7 includes a sliding rail 71 and a counterweight 72. The sliding rail 71 is located inside the support arm 51 and extends from the middle of the support arm 51 to one end of the support arm 51 near the arc-shaped support guide rail 52. The extension direction of the sliding rail 71 forms an acute angle β with the axis of the support arm 51. The counterweight 72 is located inside the sliding rail 71 and is slidably connected to the sliding rail 71. When the angle α between the support arm 51 and the support base 1 decreases, the counterweight 72 gradually moves towards the middle of the support arm 51 under the action of gravity.

[0039] The stabilizing component 7 provides dynamic balancing force to the support arm 51 through gravity. As the tilt angle of the support arm 51 changes, the counterweight position automatically adjusts. When the angle between the support arm 51 and the base 1 decreases, the center of gravity moves towards the middle of the support arm 51, generating a stabilizing torque opposite to the overturning moment. This effectively enhances the support's wind resistance at large tilt angles while reducing the need for manual intervention. The sliding track 71 is arranged inside the support arm 51 at a specific tilt angle, providing a guiding path for the counterweight 72. The acute angle β formed by the track 71 and the axis of the support arm 51 ensures that the counterweight 72 can slide automatically with changes in tilt angle, linking the gravity compensation effect with the angle change of the support arm 51, thus improving the adaptive stability of the support. The counterweight 72 moves freely within the sliding track 71, generating a variable torque through its own gravity. When the angle of the support arm 51 decreases, it slides towards the middle under the influence of gravity, dynamically adjusting the center of gravity position, increasing the support's resistance to overturning, and avoiding reliability issues associated with complex mechanical structures. The acute angle β formed by the sliding track 71 and the axis of the support arm 51 makes the movement direction of the counterweight 72 form the optimal mechanical relationship with the direction of gravity, ensuring that the counterweight 72 can produce the expected displacement effect with the change of tilt angle, optimizing the gravity compensation efficiency and improving the stability performance of the support at different tilt angles.

[0040] In this embodiment, a traction component 8 is connected between the counterweight 72 and the arc-shaped support rail 52. The traction component 8 is used to apply an additional pulling force toward the support base 1 to the counterweight 72 when the angle between the support arm 51 and the support base 1 decreases. The additional pulling force applied by the traction component 8 to the counterweight 72 is at its maximum when the angle α between the support arm 51 and the support base 1 reaches a set minimum. The traction component 8 includes a traction rope 81 and a spring-type automatic winding mechanism 82. The spring-type automatic winding mechanism 82 is fixed to the front end of the arc-shaped support rail 52. The front end of the arc-shaped support rail 52 refers to the end where the angle α between the support arm 51 and the support base 1 continuously increases as the support arm 51 moves toward that end. One end of the traction rope 81 is fixed to the spring-type automatic winding mechanism 82 and wound around it, while the other end of the traction rope 81 is connected to the counterweight 72.

[0041] The traction component 8 applies additional tension to the counterweight 72 via mechanical linkage when the angle of the support arm 51 decreases, and provides maximum tension when the included angle α reaches its minimum, forming a composite stability system that works in conjunction with gravity. This further enhances the wind resistance of the support structure at its extreme tilt angles, while ensuring a smooth transition during angle adjustment. The traction rope 81, acting as a force transmission medium, connects the coil spring mechanism and the counterweight 72. Its flexibility allows the counterweight 72 to move freely within the sliding track 71 while transmitting tension, maintaining continuous tension as the angle of the support arm 51 changes, ensuring that the additional tension can effectively act on the counterweight 72. The coil spring-type automatic winding mechanism 82, fixed to the front end of the arc-shaped support guide rail 52, automatically adjusts the length of the traction rope 81 through preload. As the angle of the support arm 51 decreases, it gradually releases the stored elastic potential energy, converting it into additional tension on the counterweight 72, achieving adaptive force compensation as the angle changes. The tension adjustment system, consisting of the traction rope 81 and the coil spring mechanism, ensures that the additional tension increases as the angle of the support arm 51 decreases through the pre-tension setting and the coordination of the retraction mechanism, providing the maximum stable torque at the extreme position and optimizing the overall stability performance of the support under different tilt angles.

[0042] In this embodiment, several support columns 53 are provided. The included angle γ between the support column 53 and the bracket base 1 at different positions satisfies the following: when the support arm 51 moves, the included angle γ between the support column 53 and the bracket base 1 at the corresponding position decreases as the included angle α between the support arm 51 and the bracket base 1 decreases. The included angle γ between the support column 53 and the bracket base 1 ranges from 30° to 90°.

[0043] The support columns 53 are arranged at different angles to form a gradient support structure. The angle γ between the support column 53 and the support base 1 changes accordingly as the angle α of the support arm 51 decreases. This dynamic angle matching design makes the distribution of support force more reasonable, effectively disperses the bending moment borne by the arc-shaped support guide rail 52, improves the overall structural strength of the support, and reduces the risk of local stress concentration. The support columns 53 are arranged with gradually changing angles within the range of 30° to 90°, forming a support network that matches the movement trajectory of the support arm 51. This ensures that the support arm 51 achieves optimal support effect throughout its entire stroke, enhances the stability of the support at different tilt angles, and reduces the possibility of structural deformation. Example 2

[0044] like Figure 1 , Figure 3 As shown, this embodiment proposes a solar power generation structure, including any of the above-mentioned solar photovoltaic brackets. A solar panel 100 is fixed inside the photovoltaic frame 3, and the solar panel 100 converts light energy into electrical energy.

[0045] By fixing the solar panel 100 within the photovoltaic frame 3, the photovoltaic power generation unit and the support structure form an integrated system. The angle adjustment function of the support optimizes the light-receiving angle of the solar panel 100, improving light energy conversion efficiency while maintaining the compact structure and environmental adaptability of the power generation equipment. The collaborative design of the solar panel 100 and the adjustable support achieves the organic integration of the power generation unit and the supporting structure, enabling the solar panel 100 to fully utilize the tilt adjustment function of the support to obtain optimal lighting conditions, improving energy harvesting efficiency, and simplifying system installation and maintenance processes.

[0046] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., 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 application 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An angle-adjustable solar photovoltaic support, comprising a support base (1), a main support rod (2), a photovoltaic frame (3), and a tilt adjustment structure (4), wherein the main support rod (2) is fixedly connected to the support base (1), and the tilt adjustment structure (4) is located between the main support rod (2) and the photovoltaic frame (3), characterized in that, An inclined support structure (5) is provided between the photovoltaic frame (3) and the support base (1). The tilt support structure (5) includes a support arm (51) and an arc-shaped support rail (52). One end of the support arm (51) is fixedly connected to one side of the photovoltaic frame (3). The support arm (51) is perpendicular to the photovoltaic frame (3). The other end of the support arm (51) is provided with a sliding part (6) that cooperates with the arc-shaped support rail (52). The arc-shaped support rail (52) is fixed to the bracket base (1) by at least one support column (53). The extension trajectory of the arc-shaped support rail (52) is as follows: when the photovoltaic frame (3) rotates around the main support rod (2) to adjust the tilt angle, the sliding part (6) slides along the arc-shaped support rail (52), so that the angle α between the support arm (51) and the bracket base (1) continuously decreases from greater than 80° to less than 10°, while the tilt angle θ of the photovoltaic frame (3) increases from less than 10° to greater than 80°. The support arm (51) is provided with a stabilizing component (7) on one side. The stabilizing component (7) is used to provide gravity to the support arm (51) towards the support base (1). As the angle α between the support arm (51) and the support base (1) decreases, its center of gravity is closer to the middle of the support arm (51). The stabilizing component (7) includes a sliding rail (71) and a counterweight (72). The sliding rail (71) is located inside the support arm (51). The sliding rail (71) extends from the middle of the support arm (51) to one end of the support arm (51) near the arc-shaped support guide rail (52). The extension direction of the sliding rail (71) forms an acute angle β with the axis of the support arm (51). The counterweight (72) is located inside the sliding rail (71). The counterweight (72) is slidably connected to the sliding rail (71). When the angle α between the support arm (51) and the support base (1) decreases, the counterweight (72) gradually moves towards the middle of the support arm (51) under the action of gravity. A traction component (8) is connected between the counterweight (72) and the arc-shaped support rail (52). The traction component (8) is used to apply an additional pulling force toward the support base (1) to the counterweight (72) when the angle between the support arm (51) and the support base (1) becomes smaller. The additional pulling force applied by the traction component (8) to the counterweight (72) is at its maximum when the angle α between the support arm (51) and the support base (1) reaches the set minimum. The traction assembly (8) includes a traction rope (81) and a spring-type automatic winding mechanism (82). The spring-type automatic winding mechanism (82) is fixed to the front end of the arc-shaped support rail (52). The front end of the arc-shaped support rail (52) refers to the end where the angle α between the support arm (51) and the bracket base (1) continuously increases as the support arm (51) moves toward that end. One end of the traction rope (81) is fixed to the spring-type automatic winding mechanism (82) and wound around the spring-type automatic winding mechanism (82). The other end of the traction rope (81) is connected to the counterweight (72).

2. The angle-adjustable solar photovoltaic bracket according to claim 1, characterized in that, The sliding part (6) includes a rolling assembly and an axial limiting structure; The rolling assembly includes at least one rotatable rolling element (61), and the axial limiting structure is used to prevent the rolling element (61) from dislodging from the arcuate support rail (52); The cross-section of the arc-shaped support guide rail (52) is provided with an inwardly recessed limiting groove (54), which cooperates with the axial limiting structure to form a radial constraint.

3. The angle-adjustable solar photovoltaic bracket according to claim 2, characterized in that, The axial limiting structure includes a pin (62) passing through the rolling element (61) and extending into the limiting groove (54) to prevent the rolling element (61) from falling out of the arc-shaped support rail (52).

4. The angle-adjustable solar photovoltaic bracket according to claim 1, characterized in that, The support column (53) is provided with several columns. The included angle γ between the support column (53) and the bracket base (1) at different positions satisfies the following: when the support arm (51) moves, the included angle γ between the support column (53) and the bracket base (1) at the corresponding position decreases as the included angle α between the support arm (51) and the bracket base (1) decreases. The included angle γ between the support column (53) and the bracket base (1) ranges from 30° to 90°.

5. A solar power generation structure, characterized in that, The photovoltaic bracket as described in any one of claims 1-4 includes a solar panel (100) fixed inside the photovoltaic frame (3), which converts light energy into electrical energy.

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