A photovoltaic bracket

Abstract

The present invention provides a photovoltaic bracket, which relates to the technical field of photovoltaic brackets, including a supporting mechanism, wherein an anti-seismic mechanism is arranged in the supporting mechanism, and two groups of load-bearing mechanisms are respectively arranged on the top of the two groups of supporting mechanisms, and a limiting mechanism is arranged on the outside of the supporting mechanism. The two groups of supporting mechanisms can adjust different positions and angles to support the load-bearing mechanisms, and the anti-seismic mechanism strengthens the stability of the supporting mechanism, improves the wind resistance and vibration resistance of the supporting mechanism, and the load-bearing mechanism continuously and stably fixes the photovoltaic panel as the angle changes. The photovoltaic bracket proposed in this solution has the characteristics of flexibility, adjustability, wind resistance and earthquake resistance, and can arrange photovoltaic panels in more scenarios, thereby maximizing land utilization.

Description

Technical Field

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

[0002] In recent years, my country's investment in photovoltaic projects has continued to increase, and the photovoltaic construction rate has continued to grow. In order to highlight the design advantages of photovoltaic projects, it is necessary to consider the wind and earthquake resistance issues in complex scenarios when building photovoltaic power stations. However, traditional photovoltaic brackets are difficult to meet the needs, so a photovoltaic bracket is needed to overcome the shortcomings in current practical applications. Summary of the Invention

[0003] The present invention provides a photovoltaic bracket to solve the defects existing in the above-mentioned prior art.

[0004] The present invention provides a photovoltaic bracket, comprising: a supporting mechanism, wherein an anti-seismic mechanism is arranged inside the supporting mechanism, a load-bearing mechanism is arranged on the supporting mechanism, and a limiting mechanism is arranged outside the supporting mechanism.

[0005] Preferably, the support mechanism includes a fixed support and a lifting support, the fixed support and the lifting support are both fixed to a ground foundation via a base, and a load-bearing mechanism is provided on the fixed support and the lifting support.

[0006] Preferably, the lifting pillar includes a sleeve, a driving groove is provided in the sleeve, a first motor is provided in the driving groove, the output end of the first motor is connected to a threaded rod through a coupling, a lifting plate is connected to the threaded rod, the lifting plate is connected to an adjusting column, and a first buffer spring is provided between the lifting plate and the top of the first motor.

[0007] Preferably, the load-bearing mechanism includes two groups of rotating seats, and any group of the rotating seats is rotatably connected to the fixed pillar and the adjusting column on the same side respectively. Any group of the rotating seats is connected through a load-bearing beam, and supports are provided at both ends of the load-bearing beam.

[0008] Preferably, a limiting hole is provided in the support, a load-bearing cable passes through the limiting hole between the two fixed pillars or the two lifting pillars and is connected to the limiting mechanism, and a photovoltaic frame is placed on the load-bearing cable;

[0009] An auxiliary support rod is provided on the load-bearing cable, and a photovoltaic frame is placed on the auxiliary support rod and the load-bearing cable.

[0010] Preferably, the anti-seismic mechanism includes a first ear plate, a second ear plate, and a third ear plate. The first ear plate is arranged on the side of the fixed pillar facing the adjusting column, the second ear plate is arranged on the side of the adjusting column facing the fixed pillar, and the third ear plate is arranged at the bottom of the load-bearing beam. The two ends of the first connecting rod are respectively connected to the first ear plate and the third ear plate, the third ear plate is connected to one end of the rod sleeve, the second ear plate is connected to one end of the second connecting rod, and the other end of the rod sleeve is sleeved outside the other end of the second connecting rod.

[0011] Preferably, a sliding cavity is provided in the rod sleeve, a sliding groove is provided in the sliding cavity, a sliding block is provided on the other end of the second connecting rod, the sliding block is slidably connected to the sliding groove, and a second buffer spring is provided between the other end of the second connecting rod and the sliding cavity.

[0012] Preferably, the limiting mechanism includes a limiting block and a pressing component, one end of the pressing component is inserted into the limiting block, the other end of the pressing component passes through the limiting block and is exposed outside the limiting block, and the limiting block is fixedly connected to the rotating seat;

[0013] The limit block has a built-in first fixed plate and a second fixed plate, the first fixed plate is provided with a second motor, the output end of the second motor is connected to one end of the rotating shaft through a coupling, the rotating shaft is provided with a first bevel gear, the other end of the rotating shaft is passed through the second fixed plate, and the other end of the rotating shaft is also provided with a threaded shaft, the inner wall of the limit block is provided with a limit sleeve, the limit sleeve is sleeved on the threaded shaft, and the threaded shaft is also sleeved with a movable sleeve, the movable sleeve and the limit block are fixed by a fixed sleeve; the load-bearing cable is wound on the movable sleeve and fixedly connected to the threaded shaft.

[0014] Preferably, the pressing assembly includes a threaded sleeve, which is arranged in a hole opened at the top of the limit block, a rotating rod is arranged in the threaded sleeve, a turntable is provided at one end of the rotating rod, and the other end of the rotating rod is inserted into an insert tube arranged at the bottom of the limit block, and a pressing spring is arranged between the bottom of the rotating rod and the bottom of the insert tube.

[0015] Preferably, a second bevel gear is provided on the rotating rod part between the threaded sleeve and the first bevel gear, and an inclined sleeve is provided at the lower end of the rotating rod. A micro switch is provided inside the limit block corresponding to the inclined sleeve, an elastic plate is provided on the micro switch, and a rotating wheel is provided on the elastic plate.

[0016] Compared with existing technologies, the photovoltaic bracket proposed in this solution is flexible, adjustable, wind-resistant and earthquake-resistant, and can be used to deploy photovoltaic panels in more scenarios, maximizing land utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the side structure provided by an embodiment of the present invention;

[0020] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A;

[0021] Figure 4 is a schematic cross-sectional structural diagram of a limiting mechanism provided in an embodiment of the present invention;

[0022] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of part B.

[0023] Reference numerals:

[0024] 1. Support mechanism; 11. Fixed pillar; 12. Lifting pillar; 121. Sleeve; 122. Drive slot; 123. First motor; 124. Threaded rod; 125. Lifting plate; 126. Adjusting column; 127. First buffer spring; 13. Base; 2. Load-bearing mechanism; 21. Rotating seat; 22. Load-bearing beam; 23. Support; 24. Load-bearing cable; 25. Auxiliary support rod; 26. Photovoltaic frame; 27. Limiting hole; 3. Anti-seismic mechanism; 31. First ear plate; 32. Third ear plate; 33. Second ear plate; 34. First connecting rod; 35. Rod sleeve; 36. Sliding cavity; 37. Sliding slot; 38. First Second connecting rod; 39, sliding block; 391, second buffer spring; 4, limiting mechanism; 41, limiting block; 411, first fixed plate; 412, second fixed plate; 413, second motor; 413, rotating shaft; 414, bevel gear one; 415, threaded shaft; 416, limiting sleeve; 417, movable sleeve; 418, fixed sleeve; 42, pressing assembly; 421, threaded sleeve; 422, rotating rod; 423, turntable; 424, insert; 425, pressing spring; 426, bevel gear two; 427, oblique sleeve; 428, micro switch; 429, elastic plate; 430, rotating wheel; 5, photovoltaic panel. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying the importance of their relative settings or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] The present invention provides the following embodiments

[0028] Example 1

[0029] The embodiment of the present invention provides a photovoltaic bracket, such as Figure 1 As shown, it includes: a support mechanism 1, an anti-seismic mechanism 3 is provided inside the support mechanism 1, a load-bearing mechanism 2 is provided on the support mechanism 1, and a limiting mechanism 4 is provided on the outside of the support mechanism 1.

[0030] In the above technical solution: the two groups of supporting mechanisms 1 can adjust different positions and angles to support the load-bearing mechanism 2, the anti-seismic mechanism 3 strengthens the stability of the supporting mechanism 1, and improves the wind resistance and earthquake resistance of the supporting mechanism 1. As the angle changes, the load-bearing mechanism 2 maintains fixed stability for the photovoltaic panel 5.

[0031] Example 2

[0032] On the basis of Example 1, Figures 1-4 As shown, the support mechanism 1 includes a fixed support 11 and a lifting support 12, and the fixed support 11 and the lifting support 12 are both fixed to the ground foundation through a base 13, and a load-bearing mechanism 2 is provided on the fixed support 11 and the lifting support 12;

[0033] The lifting pillar 12 includes a sleeve 121, a driving slot 122 is defined in the sleeve 121, a first motor 123 is disposed in the driving slot 122, an output end of the first motor 123 is connected to a threaded rod 124 via a coupling, a lifting plate 125 is connected to the threaded rod 124, an adjusting column 126 is connected to the lifting plate 125, and a first buffer spring 127 is disposed between the lifting plate 125 and the top of the first motor 123.

[0034] In the above technical solution: the base 13 provides stable support for the fixed pillar 11 and the lifting pillar 12, and the base 13 can also be placed directly on the ground or fixed to the ground by bolts. The fixed pillar 11 and the lifting pillar 12 provide stable support for the load-bearing mechanism 2, and the driving groove 122 in the sleeve 121 fixes the first motor 123. The output end of the first motor 123 drives the threaded column to rotate synchronously through the coupling. When the threaded rod 124 rotates, the lifting plate 125 is driven to rise and fall through the thread. At the same time, the lifting plate 125 drives the adjusting column 126 to rise and fall synchronously, thereby adjusting the photovoltaic frame 26 to an appropriate angle. The first buffer spring 127 realizes buffering when the lifting plate 125 is raised and lowered, thereby preventing the lifting plate 125 from falling rapidly due to an accident.

[0035] Example 3

[0036] On the basis of Example 2, Figures 1-4 As shown, the load-bearing mechanism 2 includes two groups of rotating seats 21, and each group of the rotating seats 21 is rotatably connected to the fixed support 11 and the adjustment column 126 on the same side. Each group of the rotating seats 21 is connected through a load-bearing beam 22, and supports 23 are provided at both ends of the load-bearing beam 22;

[0037] A limiting hole 27 is defined in the support 23 , and a load-bearing cable 24 passes through the limiting hole 27 between the two fixed pillars 11 or the two lifting pillars 12 and is connected to the limiting mechanism 4 , and a photovoltaic frame 26 is placed on the load-bearing cable 24 ;

[0038] An auxiliary support rod 25 is provided on the load-bearing cable 24 , and a photovoltaic frame 26 is placed on the auxiliary support rod 25 and the load-bearing cable.

[0039] In the above technical solution: the fixed pillar 11 and the adjusting column 126 support and limit the rotation of the load-bearing beam 22, the two supports 23 arranged at both ends of the load-bearing beam 22 balance the gravity distribution, the load-bearing cable 24 passes through the limiting hole 27, the limiting hole 27 limits the load-bearing cable 24, the two load-bearing cables 24 pass through the bottom of the two auxiliary support rods 25 respectively, the two load-bearing cables 24 provide stable support for the photovoltaic frame 26 on the two auxiliary support rods 25, the auxiliary support rods 25 increase the contact with the bottom of the photovoltaic frame 26, further enhance the stability of the photovoltaic frame 26, the load-bearing cable 24 facilitates the two auxiliary support rods 25 to still be able to stably support the photovoltaic frame 26 at different positions and heights, and the load-bearing cable 24 can achieve force unloading when encountering wind.

[0040] Example 4

[0041] On the basis of Example 3, Figures 1-4 As shown, the anti-seismic mechanism 3 includes a first ear plate 31, a second ear plate 33, and a third ear plate 32. The first ear plate 31 is provided on the side of the fixed pillar 11 facing the adjustment column 126, the second ear plate 33 is provided on the side of the adjustment column 126 facing the fixed pillar 11, and the third ear plate 32 is provided at the bottom of the load-bearing beam 22. The two ends of the first connecting rod 34 are respectively connected to the first ear plate 31 and the third ear plate 32. The third ear plate 32 is connected to one end of the rod sleeve 35. The second ear plate 33 is connected to one end of the second connecting rod 38. The other end of the rod sleeve 35 is sleeved outside the other end of the second connecting rod 38.

[0042] A sliding cavity 36 is provided in the rod sleeve 35 , a sliding groove 37 is provided in the sliding cavity 36 , a sliding block 39 is provided on the other end of the second connecting rod 38 , the sliding block 39 is slidably connected to the sliding groove 37 , and a second buffer spring 391 is provided between the other end of the second connecting rod 38 and the sliding cavity 36 .

[0043] In the above technical solution: the fixed pillar 11, the adjusting pillar 126, and the load-bearing beam 22 respectively fix and limit the first ear plate 31, the second ear plate 33, and the third ear plate 32; the first ear plate 31, the third ear plate 32, and the first connecting rod 34 limit the angle between the fixed pillar 11 and the load-bearing beam 22 while strengthening the support strength between the two; the second ear plate 33, the third ear plate 32, the rod sleeve 35, and the second connecting rod 38 limit the angle between the adjusting pillar 126 and the load-bearing beam 22 while strengthening the support strength between the two; the sliding groove 37 in the rod sleeve 35 limits the sliding block 39 at one end of the second connecting rod 38; the sliding groove 37 limits one end of the second connecting rod 38; the second buffer spring 391 buffers the second connecting rod 38 and the inner wall of the sliding groove 37; when subjected to vibration, the second connecting rod 38 moves in the rod sleeve 35 to unload the force, thereby enhancing the seismic resistance of the bracket.

[0044] Example 5

[0045] On the basis of Example 4, Figures 1-4 As shown, the limiting mechanism 4 includes a limiting block 41 and a pressing assembly 42. One end of the pressing assembly 42 is inserted into the limiting block 41, and the other end of the pressing assembly 42 passes through the limiting block 41 and is exposed outside the limiting block 41. The limiting block 41 is fixedly connected to the rotating seat 21.

[0046] The limit block 41 has a first fixed plate 411 and a second fixed plate 412 built in. The first fixed plate 411 is provided with a second motor 413. The output end of the second motor 413 is connected to one end of the rotating shaft 419 through a coupling. The rotating shaft 419 is provided with a first bevel gear 426. The other end of the rotating shaft 419 is arranged through the second fixed plate 412. A threaded shaft 415 is also provided on the other end of the rotating shaft 419. A limit sleeve 416 is provided on the inner wall of the limit block 41, and the limit sleeve 416 is sleeved on the threaded shaft 415. A movable sleeve 417 is also sleeved on the threaded shaft 415. The movable sleeve 417 is fixed to the limit block 41 by a fixed sleeve 418; the load-bearing cable 24 is wound on the movable sleeve 417 and fixedly connected to the threaded shaft 415.

[0047] In the above technical solution: the rotating seat 21 fixes the limit block 41, and the limit block 41 rotates synchronously with the rotating seat 21, which facilitates the correspondence between the limit block 41 and the limit hole 27. When the second motor 413 fails, it can be adjusted to the pressing component 42, and the limit block 41 limits and fixes the pressing component 42, the first fixed plate 411, and the second fixed plate 412. The first fixed plate 411 limits the second motor 413, and the second motor 413 drives the rotating shaft 419 through the coupling to rotate synchronously. The second fixed plate 412 limits the rotation of the rotating shaft 419, and the rotating shaft 419 drives the first bevel gear 426 to rotate synchronously. The pin connects the rotating shaft 419 and the threaded shaft 415, and the limiting sleeve 416 limits the rotation of the threaded column. The threaded shaft 415 rotates synchronously with the rotating shaft 419 in the limiting sleeve 416. The threaded shaft 415 limits the inner wall of the movable sleeve 417, and the fixed sleeve 418 limits the outer wall of the movable sleeve 417. When the threaded column rotates, the movable sleeve 417 is threadedly connected to the rotating shaft 419 under the condition that the fixed sleeve 418 limits the movable sleeve 417. When the movable sleeve 417 rotates counterclockwise, it moves to the right. Under the action of the gravity of the photovoltaic frame 26, the load-bearing cable 24 on the movable sleeve 417 is released from the output hole on the wall of the limit block 41, and the external load-bearing cable 24 becomes longer to adjust the position of the photovoltaic frame 26; when the movable sleeve 417 rotates clockwise, it moves to the left, retracts the external load-bearing cable 24, and adjusts the position of the photovoltaic frame 26. At the same time, the threaded shaft 415 fixes one end of the load-bearing cable 24 to prevent the load-bearing cable 24 from slipping and causing the photovoltaic panel 5 to fall.

[0048] Example 6

[0049] On the basis of Example 5, Figures 1-4 As shown, the pressing assembly 42 includes a threaded sleeve 421, which is arranged in a hole opened at the top of the limit block 41. A rotating rod 422 is arranged in the threaded sleeve 421, and a rotating disk 423 is provided at one end of the rotating rod 422. The other end of the rotating rod 422 is inserted into an insert 424 provided at the bottom of the limit block 41. A pressing spring 425 is provided between the bottom of the rotating rod 422 and the bottom of the insert 424.

[0050] A second bevel gear 414 is also provided on the rotating rod 422 between the threaded sleeve 421 and the first bevel gear 426, and an inclined sleeve 427 is also provided at the lower end of the rotating rod 422. A micro switch 428 is provided inside the limit block 41 corresponding to the inclined sleeve 427, and an elastic plate 429 is provided on the micro switch 428, and a rotating wheel 430 is provided on the elastic plate 429.

[0051] In the above technical solution: the top of the limit block 41 limits the threaded sleeve 421, and the threaded sleeve 421 limits the rotating rod 422. When the second motor 413 fails and stops working, the rotating rod 422 is rotated, and the rotating rod 422 moves downward through the threaded connection. The pressing spring 425 at the bottom of the rotating rod 422 is compressed to buffer the bottom of the rotating rod 422 and the limit block 41. The inclined sleeve 427 at the bottom of the rotating rod 422 moves downward synchronously, and the inclined sleeve 427 squeezes the rotating wheel 430. The rotation setting of the rotating wheel 430 reduces the friction between the inclined sleeve 427 and the rotating wheel 430. At the same time, the elastic The plate 429 is bent, and the micro switch 428 is activated by the action of the elastic plate 429 to disconnect the circuit of the second motor 413 to prevent a short circuit in the event of a failure of the second motor 413 and thus cause a fire hazard. While the rotating rod 422 moves downward, the second bevel gear 414 moves downward and engages with the first bevel gear 426. The rotating rod 422 continues to rotate, and the second bevel gear 414 and the first bevel gear 426 are engaged and transmitted, and a movement as in the aforementioned embodiment occurs, thereby adjusting the length of the load-bearing cable 24 and then adjusting the position of the photovoltaic frame 26.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A photovoltaic bracket, characterized in that: include: A support mechanism (1), wherein the support mechanism (1) is provided with an anti-seismic mechanism (3), the support mechanism (1) is provided with a load-bearing mechanism (2), and a limiting mechanism (4) is provided on the outside of the support mechanism (1); The support mechanism (1) comprises a fixed support (11) and a lifting support (12), wherein the fixed support (11) and the lifting support (12) are both fixed to a ground foundation via a base (13), and a load-bearing mechanism (2) is provided on the fixed support (11) and the lifting support (12); The lifting support (12) includes a sleeve (121), a driving slot (122) is provided in the sleeve (121), a first motor (123) is provided in the driving slot (122), an output end of the first motor (123) is connected to a threaded rod (124) via a coupling, a lifting plate (125) is connected to the threaded rod (124), the lifting plate (125) is connected to an adjusting column (126), and a first buffer spring (127) is provided between the lifting plate (125) and the top of the first motor (123); The load-bearing mechanism (2) includes two groups of rotating seats (21), each group of the rotating seats (21) is rotatably connected to the fixed support (11) and the adjustment column (126) on the same side, and each group of the rotating seats (21) is connected via a load-bearing beam (22), and both ends of the load-bearing beam (22) are provided with supports (23); The limiting mechanism (4) comprises a limiting block (41) and a pressing assembly (42), one end of the pressing assembly (42) is inserted into the limiting block (41), and the other end of the pressing assembly (42) passes through the limiting block (41) and is exposed outside the limiting block (41), and the limiting block (41) is fixedly connected to the rotating seat (21); The limiting block (41) has a first fixed plate (411) and a second fixed plate (412) built therein. The first fixed plate (411) is provided with a second motor (413). The output end of the second motor (413) is connected to one end of a rotating shaft (419) via a coupling. The rotating shaft (419) is provided with a first bevel gear (426). The other end of the rotating shaft (419) passes through the second fixed plate (412). The other end of the rotating shaft (419) is also provided with a A threaded shaft (415) is provided, and a limiting shaft sleeve (416) is provided on the inner wall of the limiting block (41), the limiting shaft sleeve (416) is sleeved on the threaded shaft (415), and a movable shaft sleeve (417) is further sleeved on the threaded shaft (415), and the movable shaft sleeve (417) and the limiting block (41) are fixed by a fixed shaft sleeve (418); a load-bearing rope (24) is wound on the movable shaft sleeve (417) and fixedly connected to the threaded shaft (415).

2. A photovoltaic bracket according to claim 1, characterized in that: A limiting hole (27) is provided in the support (23); a load-bearing cable (24) passes through the limiting hole (27) between the two fixed pillars (11) or the two lifting pillars (12) and is connected to the limiting mechanism (4); a photovoltaic frame (26) is placed on the load-bearing cable (24); An auxiliary support rod (25) is provided on the load-bearing cable (24), and a photovoltaic frame (26) is placed on the auxiliary support rod (25) and the load-bearing cable.

3. A photovoltaic bracket according to claim 1, characterized in that: The anti-seismic mechanism (3) includes a first ear plate (31), a second ear plate (33), and a third ear plate (32). The first ear plate (31) is provided on a side of the fixed pillar (11) facing the adjustment pillar (126), the second ear plate (33) is provided on a side of the adjustment pillar (126) facing the fixed pillar (11), and the third ear plate (32) is provided at the bottom of the load-bearing beam (22). Two ends of a first connecting rod (34) are respectively connected to the first ear plate (31) and the third ear plate (32). The third ear plate (32) is connected to one end of a rod sleeve (35). The second ear plate (33) is connected to one end of a second connecting rod (38). The other end of the rod sleeve (35) is sleeved outside the other end of the second connecting rod (38).

4. A photovoltaic bracket according to claim 3, characterized in that: A sliding cavity (36) is provided in the rod sleeve (35), a sliding groove (37) is provided in the sliding cavity (36), a sliding block (39) is provided on the other end of the second connecting rod (38), the sliding block (39) is slidably connected to the sliding groove (37), and a second buffer spring (391) is provided between the other end of the second connecting rod (38) and the sliding cavity (36).

5. A photovoltaic support according to claim 4, characterized in that: The pressing assembly (42) includes a threaded sleeve (421), the threaded sleeve (421) is arranged in a hole opened at the top of the limit block (41), a rotating rod (422) is arranged in the threaded sleeve (421), a rotating disk (423) is provided at one end of the rotating rod (422), and the other end of the rotating rod (422) is inserted into an insert (424) provided at the bottom of the limit block (41), and a pressing spring (425) is provided between the bottom of the rotating rod (422) and the bottom of the insert (424).

6. A photovoltaic support according to claim 5, characterized in that: A second bevel gear (414) is further provided on the rotating rod (422) between the threaded sleeve (421) and the first bevel gear (426). An oblique sleeve (427) is further provided at the lower end of the rotating rod (422). A micro switch (428) is provided inside the limit block (41) corresponding to the oblique sleeve (427). An elastic plate (429) is provided on the micro switch (428), and a rotating wheel (430) is provided on the elastic plate (429).

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