Damper structure for photovoltaic support

Abstract

The utility model discloses a damper structure for a photovoltaic support, the photovoltaic support comprises a stand column assembly, a bearing assembly and a main beam, the bearing assembly is installed at the top of the stand column assembly, and the main beam is rotatably arranged at the top of the stand column assembly through the bearing assembly. The damper structure comprises a first mounting base connected with the main beam, a second mounting base connected with the stand column assembly and a damper, the first mounting base is connected with a first shaft, the second mounting base is connected with a second shaft, one end of the damper is pivoted to the first shaft through a first fisheye bearing, and the other end of the damper is pivoted to the second shaft through a second fisheye bearing. The damper is of a structure with the telescopic length. By means of the arrangement, the two ends of the damper can move universally relative to the first installation base and the second installation base respectively, and installation of the damper can adapt to complex terrain conditions.

Description

Technical Field

[0001] This utility model relates to a damper structure for photovoltaic brackets, belonging to the field of photovoltaic technology. Background Technology

[0002] Dampers on photovoltaic (PV) mounting systems are used to reduce the instability caused by external forces such as wind pressure or environmental factors, maintaining the stability and accuracy of the PV system during operation. In related technologies, the PV system is equipped with an upper damper arm and a lower damper seat. The two ends of the damper are rotatably connected to the upper damper arm and lower damper seat via two pins. This connection method restricts the damper's degrees of freedom in other directions, making it difficult to adapt the damper installation to complex terrain conditions. Utility Model Content

[0003] The purpose of this invention is to provide a damper structure for photovoltaic brackets that can adapt to complex terrain conditions.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A damper structure for a photovoltaic (PV) support includes a column assembly, a bearing assembly, and a main beam. The bearing assembly is mounted on the top of the column assembly, and the main beam is rotatably mounted on the top of the column assembly via the bearing assembly. The damper structure includes a first mounting base connected to the main beam, a second mounting base connected to the column assembly, and a damper. The first mounting base is connected to a first shaft, and the second mounting base is connected to a second shaft. One end of the damper is pivotally connected to the first shaft via a first fisheye bearing, and the other end of the damper is pivotally connected to the second shaft via a second fisheye bearing. The damper is a length-extendable structure.

[0006] As a further improvement of the present invention, the first fisheye bearing includes a first bearing sleeve, a first connecting rod connected to the first bearing sleeve, and a first bearing ball, wherein the first bearing ball is disposed within the first bearing sleeve; the second fisheye bearing includes a second bearing sleeve, a second connecting rod connected to the second bearing sleeve, and a second bearing ball, wherein the second bearing ball is disposed within the second bearing sleeve, and the first connecting rod and the second connecting rod are respectively connected to both ends of the damper.

[0007] As a further improvement of the present invention, the first mounting base is provided with a first truncated cone portion, and the first shaft passes through the first truncated cone portion. The second mounting base is provided with a second truncated cone portion, and the second shaft passes through the second truncated cone portion. The outer diameter of the first truncated cone portion gradually decreases from the first mounting base outwards, and the outer diameter of the second truncated cone portion gradually decreases from the second mounting base outwards. The first truncated cone portion includes a first end face, which is an outwardly convex arc-shaped surface, and the first end face abuts against the first bearing ball. The second truncated cone portion includes a second end face, which is an outwardly convex arc-shaped surface, and the second end face abuts against the second bearing ball.

[0008] As a further improvement of the present invention, the first bushing is provided with a first gasket, and the second bushing is provided with a second gasket. Both the first gasket and the second gasket are conical gaskets. The end of the first gasket with a smaller outer diameter has a third end face, which is an outwardly convex arc surface. The third end face abuts against the end of the first bearing ball away from the first conical portion. The end of the second gasket with a smaller outer diameter has a fourth end face, which is an outwardly convex arc surface. The fourth end face abuts against the end of the second bearing ball away from the second conical portion.

[0009] As a further improvement of the present invention, both the first shaft and the second shaft are bolts. The first shaft is locked to the first mounting base by a first nut, and the second shaft is locked to the second mounting base by a second nut. The first mounting base has a first limiting groove for accommodating the first nut, and the second mounting base has a second limiting groove for accommodating the second nut.

[0010] As a further improvement of the present invention, the first mounting base includes a first base plate and a first seat body inclinedly protruding from one side of the first base plate. The first seat body is provided with a first hollow groove. The first seat body includes a first edge and a second edge. The first edge and the second edge have different degrees of inclination relative to the first seat body. When the first mounting base is installed on the main beam, the first seat body is inclined and protruding towards the damper. The damper structure for the photovoltaic bracket includes a U-shaped clamp. The U-shaped clamp surrounds the main beam. The first base plate is connected to the U-shaped clamp through a first fastening component.

[0011] As a further improvement of the present invention, the first base plate is provided with a first reinforcing rib, the first reinforcing rib abuts against the main beam, and the first reinforcing rib includes an inner wall surface adapted to the main beam.

[0012] As a further improvement of the present invention, the second mounting base includes a second base plate and a second seat body connected to the second base plate. The second base plate is connected to the column assembly through a second fastening component. The projection of the second seat body onto the second base plate is X-shaped, and the second seat body is provided with a second hollow groove.

[0013] As a further improvement of the present invention, the column assembly includes a column and a top seat. The column and the top seat are connected by a third fastening component. The column is provided with a first hole and a second hole, and the top seat is provided with a third hole and a fourth hole. One of the third fastening components passes through the first hole and the third hole, and the other of the third fastening components passes through the second hole and the fourth hole. The third hole is an arc-shaped hole.

[0014] As a further improvement of the present invention, the column includes two opposing first side plates and a web plate connecting the two first side plates, and the second mounting base is installed on the web plate. From the side view of the photovoltaic bracket, the damper is perpendicular to the main beam.

[0015] Compared with the prior art, in the photovoltaic support damper structure provided by this utility model, one end of the damper is pivoted to the first shaft on the first mounting base via the first fisheye bearing, and the other end of the damper is pivoted to the second shaft on the second mounting base via the second fisheye bearing, so that the two ends of the damper can move universally relative to the first mounting base and the second mounting base respectively, so that the installation of the damper can adapt to complex terrain conditions. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the damper structure for photovoltaic brackets of this utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0018] Figure 3 yes Figure 1 Enlarged view of region B in the middle;

[0019] Figure 4 yes Figure 1 An exploded view of the structure of the damper used in the photovoltaic support shown.

[0020] Figure 5 yes Figure 4 Enlarged diagram of region C in the middle;

[0021] Figure 6 yes Figure 4 Enlarged schematic diagram of region D in the middle;

[0022] Figure 7 yes Figure 1 A three-dimensional schematic diagram of the damper structure for the photovoltaic support shown from another angle;

[0023] Figure 8 yes Figure 7 An exploded view of the structure of the damper used in the photovoltaic support shown.

[0024] Figure 9 yes Figure 7 Exploded view of the central column assembly;

[0025] Figure 10 yes Figure 8 A three-dimensional schematic diagram of the first mounting base;

[0026] Figure 11 yes Figure 10 A three-dimensional schematic diagram of the first mounting bracket from another angle;

[0027] Figure 12 yes Figure 10 The front view of the first mounting base is shown;

[0028] Figure 13 yes Figure 10 A top view of the first mounting bracket shown;

[0029] Figure 14 It is along Figure 13 Schematic diagram of the cross section of the EE line;

[0030] Figure 15 yes Figure 8 A three-dimensional schematic diagram of the second mounting base;

[0031] Figure 16 yes Figure 15 Top view of the second mounting bracket shown;

[0032] Figure 17 yes Figure 15 The side view of the second mounting bracket is shown. Detailed Implementation

[0033] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0034] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” used in the specification and claims of this invention are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0035] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this utility model are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. In this utility model, the word "several" means two or more.

[0036] Please refer to Figures 1 to 17 As shown, this utility model discloses a damper structure for a photovoltaic (PV) support, comprising a first mounting base 3, a second mounting base 4, and a damper 5. The PV support includes a column assembly 1, a bearing assembly 9, and a main beam 2. There are at least two column assemblies 1, each with a bearing assembly 9 mounted on its top. The main beam 2 passes through at least two bearing assemblies 9 and is rotatably mounted on the top of the column assembly 1. The first mounting base 3 is connected to the main beam 2, and the second mounting base 4 is connected to the column assembly 1. The damper 5 is connected between the first mounting base 3 and the second mounting base 4 for vibration damping; the damper 5 is a telescopic structure. In this embodiment, the PV support is a PV tracking support.

[0037] The support column assembly 1 is set on a base surface (not shown in the figure). The base surface can be a building roof, plain, hill, mountain, lake, desert, Gobi, etc. This utility model does not limit the base surface. The main beam 2 is used to install purlins, and the photovoltaic modules are installed on the purlins. The main beam 2 is driven to rotate by a drive device, which drives the photovoltaic modules installed on the purlins to rotate, adjusting the light-receiving angle of the photovoltaic modules so that they can receive more irradiation and improve power generation efficiency.

[0038] Please refer to Figure 1As shown, the column assembly 1 includes a column 11 and a top seat 12, which are connected by a third fastening assembly 50. A bearing assembly 9 is located on the top seat 12. Specifically, the bearing assembly 9 includes a bearing housing and a bearing. The bearing housing is fixed to the top of the column 11 by bolts, and the bearing is rotatably disposed within the bearing housing. The main beam 2 passes through the bearing. For details, please refer to... Figure 9 As shown, the side plates on both sides of the column 11 are provided with a first hole 111 and a second hole 112, respectively. The side plates on both sides of the top seat 12 are provided with a third hole 121 and a fourth hole 122, respectively. A third fastening component 50 passes through the first hole 111 and the third hole 121, and another third fastening component 50 passes through the second hole 112 and the fourth hole 122, so as to achieve a stable connection between the top seat 12 and the column 11.

[0039] In some implementation methods, please refer to Figure 9 As shown, the first hole 111, the second hole 112, and the fourth hole 122 are all circular holes, while the third hole 121 is an arc-shaped hole. The first hole 111 can be positioned opposite and locked to the third hole 121 at different locations, thus facilitating the adjustment of the tilt angle between the main beam 2 and the ground according to the terrain, to better adapt to different terrains. In other possible embodiments, the first hole 111 and the second hole 112 are both circular holes, while the third hole 121 and the fourth hole 122 are both arc-shaped holes.

[0040] Column 11 is made of I-beams. Please refer to [reference needed]. Figure 9 As shown, the column 11 includes two opposing first side plates 11a and a web plate 11b connecting the two first side plates 11a. The second mounting base 4 is mounted on the web plate 11b. Viewed from the side of the photovoltaic bracket, the damper 5 is perpendicular to the main beam 2. Compared to the scheme where the second mounting base is mounted on the first side plate, this invention, by mounting the second mounting base 4 on the web plate 11b, makes the column assembly 1 more uniformly stressed within a ±60° range, and the second mounting base 4 also experiences relatively uniform stress. Each first side plate 11a has multiple first holes 111 and multiple second holes 112. The top mount 12 includes two opposing second top mount side plates 12a, each with a third hole 121 and a fourth hole 122. The third hole 121 can be aligned with and locked to any one of the multiple first holes 111, and the fourth hole 122 can be aligned with and locked to any one of the multiple second holes 112, thereby enabling height adjustment of the top mount 12.

[0041] Please refer to Figure 1As shown, the first mounting base 3 is connected to the first shaft 101, and the second mounting base 4 is connected to the second shaft 201. One end of the damper 5 is pivoted to the first shaft 101 via the first fisheye bearing 6, and the other end of the damper 5 is pivoted to the second shaft 201 via the second fisheye bearing 7. This allows the two ends of the damper 5 to move omnidirectionally relative to the first mounting base 3 and the second mounting base 4, respectively. This allows the installation of the damper 5 to adapt to complex terrain conditions, and also allows the damper 5 to move freely with the main beam 2 within the tracking angle. The damper 5 is a telescopic structure, thus enabling it to track the movement of the main beam 2. When the damper 5 moves and extends slowly, it has no damping force and does not affect tracking. When the damper 5 moves and extends rapidly, it generates a large damping force, which is beneficial for resisting strong winds.

[0042] In some implementation methods, please refer to Figure 2 and Figure 3 As shown, both the first shaft 101 and the second shaft 201 are bolts. The first shaft 101 is locked to the first mounting base 3 by a first nut 102, and the second shaft 201 is locked to the second mounting base 4 by a second nut 202. The first mounting base 3 has a first limiting groove 3220 to accommodate the first nut 102, and the second mounting base 4 has a second limiting groove 4220 to accommodate the second nut 202. During assembly, the first nut 102 is inserted into the first limiting groove 3220, and the second nut 202 is inserted into the second limiting groove 4220. Then, the first shaft 101 is rotated to pass through the first nut 102, and the second shaft 201 is rotated to pass through the second nut 202, thus achieving bolt-nut fastening. By tightening the bolts on one side, quick installation is achieved.

[0043] The first mounting base 3 is manufactured using a casting process. Please refer to... Figure 1 and Figure 2 As shown, the first mounting base 3 includes a first base plate 31 and a first seat body 32 inclinedly protruding from one side of the first base plate 31. The first seat body 32 is provided with a first hollow groove 320, which helps to reduce weight and save costs. The damper structure for the photovoltaic bracket includes a U-shaped clamp 8, which surrounds the main beam 2, and the first base plate 31 is connected to the U-shaped clamp 8 through a first fastening component 30.

[0044] The first seat, 32, is triangular in shape. Please refer to... Figure 10 As shown, the first mounting body 32 includes a first edge 32a and a second edge 32b, which are connected by an arc-shaped edge 32c. The first edge 32a and the second edge 32b have different degrees of inclination relative to the first mounting body 32. When the first mounting base 3 is installed on the main beam 2, the first mounting body 32 protrudes tilted towards the damper 5. For details, please refer to... Figure 12As shown, the inclination angle of the first edge 32a relative to the first base 32 is smaller than the inclination angle of the second edge 32b relative to the first base 32, causing the center of gravity of the first base 32 to shift towards the second edge 32b. The first shaft 101 is connected to the first base 32 near the arc-shaped edge 32c, thereby shifting the installation position of the first shaft 101 relative to the main beam 2, facilitating the connection of the first fisheye bearing 6 on the damper 5, and reducing interference between the damper 5 and the main beam 2. The first base 32 is provided with a first through hole 323 for the first shaft 101 to pass through, and the first through hole 323 is near the arc-shaped edge 32c.

[0045] Please refer to Figure 10 As shown, the first base 32 is provided with two limiting plates 322, which are positioned close to the first through hole 323. The space between the two limiting plates 322 forms a first limiting groove 3220. The first nut 102 is a hexagonal nut, and the two limiting plates 322 abut against two sides of the first nut 102. The limiting plates 322 are provided with a first side groove 3221, which is part of the first limiting groove 3220. The first side groove 3221 is used to accommodate the flange of the first nut 102, thus preventing the first nut 102 from moving along the height direction of the limiting plates 322.

[0046] Please refer to Figure 10 As shown, the first mounting base 3 includes a second reinforcing rib 33, which connects the first edge 32a and the first base plate 31. The second reinforcing rib 33 extends along the thickness direction of the first base body 32, and is formed on both sides of the first edge 32a. By providing the second reinforcing rib 33, stress concentration in the first mounting base 3 can be reduced.

[0047] Please refer to Figure 11 As shown, the first base plate 31 is provided with two symmetrical first reinforcing ribs 311. The first reinforcing ribs 311 abut against the main beam 2. The first reinforcing ribs 311 include an inner wall surface 3111 that is adapted to the main beam 2, thereby improving the assembly stability of the first base plate 31 and the main beam 2.

[0048] The second mounting base 4 is manufactured using a casting process. Please refer to... Figure 7 As shown, the second mounting base 4 includes a second base plate 41 and a second seat body 42 connected to the second base plate 41. The second base plate 41 is connected to the web plate 11b of the column assembly 1 via a second fastening assembly 40. Please refer to... Figure 15 As shown, the second base plate 41 has mounting holes 411 for the second fastening assembly 40 to pass through. The second base body 42 has a second hollow groove 420, which helps to reduce weight and save costs. Both the first fastening assembly 30 and the second fastening assembly 40 include bolts and nuts.

[0049] Please refer to Figure 15As shown, the second base 42 includes a first plate portion 42a and a second plate portion 42b arranged in a cross configuration, such that the projection of the second base 42 onto the second base plate 41 forms an X shape. A second hollow groove 420 passes through the first plate portion 42a and the second plate portion 42b. A second through hole 423 is provided at the intersection of the first plate portion 42a and the second plate portion 42b for the second shaft 201 to pass through, and the second through hole 423 communicates with the second limiting groove 4220. Please refer to... Figure 16 and Figure 17 As shown, the second limiting groove 4220 communicates with the second hollow groove 420. The two groove surfaces of the second limiting groove 4220 abut against the two surfaces of the second nut 202. Each of the two groove surfaces of the second limiting groove 4220 is provided with a second side groove 42201, which is used to accommodate the flange of the second nut 202. This arrangement prevents the second nut 202 from moving along the height direction of the second seat 42. The first plate portion 42a and / or the second plate portion 42b is provided with a third side groove 4200, which is located near the mounting hole 411. The third side groove 4200 is used to accommodate the flange of the nut of the second fastening assembly 40.

[0050] Please refer to Figures 2 to 6 As shown, the first base 32 has a first frustum 321, through which the first shaft 101 passes, i.e., the first through hole 323 passes through the first frustum 321. The second base 42 has a second frustum 421, through which the second shaft 201 passes, i.e., the second through hole 423 passes through the second frustum 421. Both the first frustum 321 and the second frustum 421 are truncated cones. The outer diameter of the first frustum 321 gradually decreases from the first mounting base 3 outwards, and the outer diameter of the second frustum 421 gradually decreases from the second mounting base 4 outwards. This arrangement, while meeting structural strength requirements, allows the first frustum 321 and the second frustum 421 to better cooperate with the first fisheye bearing 6 and the second fisheye bearing 7.

[0051] Please refer to Figure 5 and Figure 6As shown, the first fisheye bearing 6 includes a first bearing sleeve 61, a first connecting rod 62 connected to the first bearing sleeve 61, and a first bearing ball 63. The first bearing ball 63 passes through the first shaft 101 and can rotate around the first shaft 101, which helps increase the rotational freedom of the damper 5 in the north-south direction of the photovoltaic support and adapt to complex terrain environments. The first bearing ball 63 is disposed within the first bearing sleeve 61, and the first bearing sleeve 61 can move omnidirectionally around the first bearing ball 63. The second fisheye bearing 7 includes a second bearing sleeve 71, a second connecting rod 72 connected to the second bearing sleeve 71, and a second bearing ball 73. The second bearing ball 73 passes through the second shaft 201 and can rotate around the second shaft 201, which helps increase the rotational freedom of the damper 5 in the north-south direction of the photovoltaic support and adapt to complex terrain environments. The second bearing ball 73 is disposed within the second bearing sleeve 71, and the second bearing sleeve 71 can move omnidirectionally around the second bearing ball 73. The first connecting rod 62 and the second connecting rod 72 are respectively connected to the two ends of the damper 5. Please refer to... Figure 8 As shown, the damper 5 includes an outer tube 51 and an inner tube 52 movably disposed within the outer tube 51. A first connecting rod 62 is connected to one of the outer tube 51 and the inner tube 52, and a second connecting rod 72 is connected to the other of the outer tube 51 and the inner tube 52.

[0052] For details, please refer to Figures 11 to 14 As shown, the first conical portion 321 includes a first end face 3211, which abuts against the first bearing ball 63. The first end face 3211 is an outwardly convex arc-shaped surface, which helps to reduce the contact area between the first end face 3211 and the first bearing ball 63, thus limiting the position of the first bearing ball 63 while ensuring its normal rotation. Please refer to... Figure 15 As shown, the second cone portion 421 includes a second end face 4211, which abuts against the second bearing ball 73. The second end face 4211 is an outwardly convex arc-shaped surface, which helps to reduce the contact area between the second end face 4211 and the second bearing ball 73, thus limiting the second bearing ball 73 while ensuring its normal rotation.

[0053] Please refer to Figure 5 As shown, a first shim 103 is fitted onto the first shaft 101, and a second shim 203 is fitted onto the second shaft 201. Both the first shim 103 and the second shim 203 are tapered shims. The end of the first shim 103 with the smaller outer diameter has a third end face 1031. The third end face 1031 abuts against the end of the first bearing ball 63 away from the first truncated cone portion 321. The third end face 1031 is an outwardly convex arc-shaped surface, which helps to reduce the contact area between the third end face 1031 and the first bearing ball 63, thus limiting the position of the first bearing ball 63 while ensuring its normal rotation. Please refer to... Figure 6As shown, the end of the second gasket 203 with a smaller outer diameter has a fourth end face 2031. The fourth end face 2031 abuts against the end of the second bearing ball 73 away from the second cone portion 421. The fourth end face 2031 is an outwardly convex arc-shaped surface, which helps to reduce the contact area between the fourth end face 2031 and the second bearing ball 73, limiting the position of the second bearing ball 73 while ensuring its normal rotation.

[0054] In this invention, the damper 5 is provided with a first fisheye bearing 6 and a second fisheye bearing 7 at both ends. The first fisheye bearing 6 is movably connected to the first mounting seat 3 on the main beam 2, and the second fisheye bearing 7 is movably connected to the second mounting seat 4 on the column assembly 1. This enables slope adaptability and better adaptability to complex terrain. Through the bearing ball bearing design, the damper 5 can adapt to the terrain. Only the angle of the main beam 2 needs to be adjusted according to the terrain during installation, allowing the damper 5 to automatically adapt to the angle of the main beam 2. There is no need to adjust the installation angle of the damper 5 during installation, saving installation steps, greatly saving installation time, and reducing installation costs.

[0055] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of the present utility model should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A damper structure for a photovoltaic support, the photovoltaic support comprising a column assembly (1), a bearing assembly (9), and a main beam (2), wherein the bearing assembly (9) is mounted on the top of the column assembly (1), and the main beam (2) is rotatably mounted on the top of the column assembly (1) via the bearing assembly (9), characterized in that, The damper structure includes a first mounting base (3) connected to the main beam (2), a second mounting base (4) connected to the column assembly (1), and a damper (5). The first mounting base (3) is connected to a first shaft (101), and the second mounting base (4) is connected to a second shaft (201). One end of the damper (5) is pivoted to the first shaft (101) via a first fisheye bearing (6), and the other end of the damper (5) is pivoted to the second shaft (201) via a second fisheye bearing (7). The damper (5) is a length-extendable structure.

2. The damper structure for photovoltaic brackets as described in claim 1, characterized in that, The first fisheye bearing (6) includes a first bearing sleeve (61), a first connecting rod (62) connected to the first bearing sleeve (61), and a first bearing ball (63), wherein the first bearing ball (63) is disposed inside the first bearing sleeve (61); the second fisheye bearing (7) includes a second bearing sleeve (71), a second connecting rod (72) connected to the second bearing sleeve (71), and a second bearing ball (73), wherein the second bearing ball (73) is disposed inside the second bearing sleeve (71), and the first connecting rod (62) and the second connecting rod (72) are respectively connected to the two ends of the damper (5).

3. The damper structure for photovoltaic brackets as described in claim 2, characterized in that, The first mounting base (3) is provided with a first truncated cone portion (321), and the first shaft (101) passes through the first truncated cone portion (321). The second mounting base (4) is provided with a second truncated cone portion (421), and the second shaft (201) passes through the second truncated cone portion (421). The outer diameter of the first truncated cone portion (321) gradually decreases from the first mounting base (3) outward, and the outer diameter of the second truncated cone portion (421) gradually decreases from the second mounting base (4) outward. The first truncated cone portion (321) includes a first end face (3211), which is an outwardly protruding arc-shaped surface. The first end face (3211) abuts against the first bearing ball (63). The second truncated cone portion (421) includes a second end face (4211), which is an outwardly protruding arc-shaped surface. The second end face (4211) abuts against the second bearing ball (73).

4. The damper structure for photovoltaic brackets as described in claim 3, characterized in that, The first shaft (101) is fitted with a first gasket (103), and the second shaft (201) is fitted with a second gasket (203). Both the first gasket (103) and the second gasket (203) are tapered gaskets. The end of the first gasket (103) with a smaller outer diameter has a third end face (1031), which is an outwardly convex arc surface. The third end face (1031) abuts against the end of the first bearing ball (63) away from the first truncated cone portion (321). The end of the second gasket (203) with a smaller outer diameter has a fourth end face (2031), which is an outwardly convex arc surface. The fourth end face (2031) abuts against the end of the second bearing ball (73) away from the second truncated cone portion (421).

5. The damper structure for photovoltaic brackets as described in claim 1, characterized in that, Both the first shaft (101) and the second shaft (201) are bolts. The first shaft (101) is locked to the first mounting base (3) by a first nut (102), and the second shaft (201) is locked to the second mounting base (4) by a second nut (202). The first mounting base (3) has a first limiting groove (3220) for accommodating the first nut (102), and the second mounting base (4) has a second limiting groove (4220) for accommodating the second nut (202).

6. The damper structure for photovoltaic brackets as described in claim 1, characterized in that, The first mounting base (3) includes a first base plate (31) and a first seat body (32) that is inclined and protrudes from one side of the first base plate (31). The first seat body (32) is provided with a first hollow groove (320). The first seat body (32) includes a first edge (32a) and a second edge (32b). The first edge (32a) and the second edge (32b) have different degrees of inclination relative to the first seat body (32). When the first mounting base (3) is installed on the main beam (2), the first seat body (32) protrudes inclined towards the damper (5). The damper structure for the photovoltaic bracket includes a U-shaped clamp (8). The U-shaped clamp (8) surrounds the main beam (2). The first base plate (31) is connected to the U-shaped clamp (8) through a first fastening component (30).

7. The damper structure for photovoltaic brackets as described in claim 6, characterized in that, The first base plate (31) is provided with a first reinforcing rib (311), the first reinforcing rib (311) abuts against the main beam (2), and the first reinforcing rib (311) includes an inner wall surface (3111) adapted to the main beam (2).

8. The damper structure for photovoltaic brackets as described in claim 1, characterized in that, The second mounting base (4) includes a second base plate (41) and a second seat body (42) connected to the second base plate (41). The second base plate (41) is connected to the column assembly (1) through a second fastening assembly (40). The projection of the second seat body (42) onto the second base plate (41) is X-shaped. The second seat body (42) is provided with a second hollow groove (420).

9. The damper structure for photovoltaic brackets as described in claim 1, characterized in that, The column assembly (1) includes a column (11) and a top seat (12). The column (11) and the top seat (12) are connected by a third fastening assembly (50). The column (11) has a first hole (111) and a second hole (112). The top seat (12) has a third hole (121) and a fourth hole (122). One of the third fastening assemblies (50) passes through the first hole (111) and the third hole (121), and the other of the third fastening assemblies (50) passes through the second hole (112) and the fourth hole (122). The third hole (121) is an arc-shaped hole.

10. The damper structure for photovoltaic brackets as described in claim 9, characterized in that, The column (11) includes two opposing first side plates (11a) and a web plate (11b) connecting the two first side plates (11a). The second mounting base (4) is installed on the web plate (11b). From the side of the photovoltaic bracket, the damper (5) is perpendicular to the main beam (2).

Images