Wind-resistant damping photovoltaic support

Abstract

The invention belongs to the field of photovoltaic technology, and discloses a wind-resistant damping photovoltaic support, which comprises a support beam as a support structure of the photovoltaic support; the connecting nodes are fixed to the supporting beam at intervals in the length direction of the supporting beam; the longitudinal beam is connected with the supporting beam through the connecting node and is used for connecting a photovoltaic panel; the two ends of the inclined supporting rod are connected to the longitudinal beam and the supporting beam through the connecting nodes, and the inclined supporting rod plays a supporting role; when wind is weak, vibration reduction operation is carried out through the damping shock absorber base, friction damping intervention is avoided, normal tiny deformation of the support is not limited, interference of excessive damping on angle adjustment of the tracking type support is prevented, and the power generation efficiency of the photovoltaic panel is guaranteed. When strong wind occurs, dual vibration reduction of friction damping and a damping shock absorber is automatically triggered, the requirement for large vibration energy under the strong wind is met, the pain point that a traditional single damping structure is uncomfortable in weak wind and insufficient in strong wind is solved, and the full-wind-condition use scene is covered.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic technology, and in particular relates to a wind-resistant and shock-absorbing photovoltaic support. Background Technology

[0002] In the current context of rapid development in the photovoltaic industry, photovoltaic (PV) mounting systems, as key structures supporting PV modules, directly affect the stability and lifespan of PV systems through their wind resistance and vibration damping performance. However, existing PV mounting systems have many shortcomings when facing different wind conditions.

[0003] On the one hand, if a damper with a larger damping coefficient is used to deal with strong winds, it can play a role in shock absorption during strong winds. However, in the case of lower wind speeds (such as level 3 and below), the larger damping will restrict the normal small deformation and stress release of the support structure, affecting the adaptability of the support structure to low wind conditions. In fact, excessive damping may even generate additional stress on the support structure, which is not conducive to long-term stability. At the same time, the manufacturing process of larger dampers is more complex and requires more materials, which significantly increases the overall cost of photovoltaic support structure, reduces the economic efficiency of the project, and may also affect the flexibility of the support angle adjustment, thereby adversely affecting the power generation efficiency of photovoltaic modules. On the other hand, relying solely on simple elastic elements or a single damping structure is insufficient to effectively cope with the large vibration energy generated by the rapid swaying of photovoltaic supports during strong winds (above level 3). It is difficult to achieve precise matching of vibration reduction efficiency under different wind levels, which leads to excessive vibration of the supports under strong winds, or even structural damage, seriously threatening the safe operation of the photovoltaic system. Summary of the Invention

[0004] This invention addresses one of the shortcomings of existing technologies. While using dampers with large damping coefficients to cope with strong winds can provide shock absorption in strong winds, in conditions with lower wind speeds (such as level 3 and below), the large damping restricts the normal small deformation and stress release of the support structure, affecting its adaptability to low wind conditions. In fact, excessive damping can even generate additional stress on the support structure, which is detrimental to long-term stability. At the same time, the manufacturing process of larger dampers is complex and requires more materials, which significantly increases the overall cost of photovoltaic support structures, reduces the economic efficiency of projects, and may also affect the flexibility of support angle adjustment, thereby adversely affecting the power generation efficiency of photovoltaic modules. On the other hand, relying solely on simple elastic elements or a single damping structure is insufficient to effectively cope with the large vibration energy generated by the rapid swaying of photovoltaic supports during strong winds (above level 3). It is also difficult to achieve precise matching of vibration reduction efficiency under different wind speeds, leading to excessive vibration of the supports under strong winds, and even structural damage, seriously threatening the safe operation of the photovoltaic system. Therefore, the following technical solution is proposed: A wind-resistant and vibration-damping photovoltaic support structure includes: a support beam, which serves as the support structure for the photovoltaic support structure; Connecting nodes are fixed to the support beam at intervals along the length of the support beam to achieve connection between various components; The longitudinal beam, connected to the support beam via the connecting node, is used to connect the photovoltaic panel; The inclined support rod is connected to the longitudinal beam and the support beam at both ends through the connection nodes, and serves a supporting function. It also includes a damping assembly, which comprises a cylinder, a damping shock absorber, a connecting sleeve, a push rod, a compression spring, a flip plate, a damping compression block, and a friction plate; The end of the connecting sleeve away from the support beam is connected to the damping shock absorber, and the end of the damping shock absorber away from the connecting sleeve is connected to the cylinder. The end of the push rod away from the support beam extends into the connecting sleeve and is connected to the inner wall of the connecting sleeve through a compression spring. A flip plate is rotatably connected inside the connecting sleeve. One side of the flip plate is connected to a friction plate through a damping compression block. The friction plate is located inside the cylinder.

[0005] As a preferred embodiment of the above technical solution, the damping compression block is provided with a limiting and resetting structure, the limiting and resetting structure comprising: A limiting rod is connected to the outer wall of the connecting sleeve; A magnetic block is connected to the opposite side of the damping compression block and the connecting sleeve; The damping compression block is arranged along the axial direction of the limiting rod, and the attraction force between the magnetic block and the connecting sleeve drives the damping compression block to reset.

[0006] As a preferred embodiment of the above technical solution, a fixing post is embedded at one end of the magnetic block, and a drainage groove is provided inside the flip plate, with the fixing post located inside the drainage groove.

[0007] As a preferred embodiment of the above technical solution, a limiting structure is provided between the push rod and the connecting sleeve, the limiting structure comprising: The column is connected to the push rod; A positioning sleeve is fitted onto the column and one end is connected to the connecting sleeve. The compression spring is sleeved on the outside of the positioning sleeve and the column.

[0008] As a preferred embodiment of the above technical solution, a connecting fulcrum structure is provided between the flip plate and the connecting sleeve, the connecting fulcrum structure comprising: A threaded rod is located inside the flip plate; Two nuts are provided, located on the outside of the threaded rod; A bearing, connected to the nut and sleeved on the outside of the threaded rod; The nut drives the bearing to be inserted into the inside of the flip plate and the connecting sleeve along the threaded rod.

[0009] As a preferred embodiment of the above technical solution, a slider is welded to one end of the threaded rod, and the slider is slidably connected inside the connecting sleeve.

[0010] As a preferred embodiment of the above technical solution, the magnetic blocks are configured in two groups, with two magnetic blocks in each group, symmetrically distributed on the damping compression block and at both ends near the connecting sleeve. The adsorption surfaces of the magnetic blocks and the connecting sleeve are both polished.

[0011] As a preferred embodiment of the above technical solution, the damping extrusion block has an arc-shaped contact surface on the side near the friction plate, and the curvature of the arc-shaped contact surface is adapted to the curvature of the inner wall of the friction plate.

[0012] As a preferred embodiment of the above technical solution, the push rod is convex in shape, and a circular groove is provided in the middle of the outer side of the push rod. One end of the flip plate is located inside the circular groove and fits against the push rod.

[0013] The beneficial effects of this invention are as follows: (1) In weak winds (level 3 and below), the damping damper is used only for foundation vibration reduction to avoid the intervention of friction damping. This does not restrict the normal small deformation of the support, but also prevents excessive damping from interfering with the angle adjustment of the tracking support, thus ensuring the power generation efficiency of the photovoltaic panel. In strong winds (level 3 and above), the dual vibration reduction of "friction damping + damping shock absorber" is automatically triggered, which accurately matches the large vibration energy demand under strong winds, solves the pain point of traditional single damping structure "unsuitable in weak winds and insufficient in strong winds", and covers all wind conditions. (2) The pivot point of the flip plate can be adjusted as needed to flexibly adapt to the wind conditions of different regions (e.g., in coastal areas with high wind speeds, the pivot point can be brought closer to the push rod to improve the response speed). There is no need to replace the entire component, which improves adaptability. Attached Figure Description

[0014] Figure 1 The diagram shown is a structural schematic of a wind-resistant and vibration-damping photovoltaic support in Embodiment 1; Figure 2 The diagram shown is a schematic diagram of the installation structure of the connecting sleeve in Embodiment 1; Figure 3 The diagram shown is a cross-sectional view of the cylinder in Embodiment 1; Figure 4 The diagram shown is a schematic of the installation structure of the flip plate in Embodiment 1; Figure 5 The diagram shown is a schematic of the slider installation structure in Embodiment 1; Figure 6 The diagram shown is a schematic of the bearing mounting structure in Embodiment 1; Figure 7 The image shown is a physical diagram of a wind-resistant and vibration-damping photovoltaic support system according to Embodiment 1.

[0015] In the diagram: 1. Support beam; 2. Connecting node; 3. Longitudinal beam; 4. Inclined support rod; 51. Cylinder; 52. Damping shock absorber; 53. Connecting sleeve; 54. Push rod; 55. Compression spring; 56. Flip plate; 57. Damping extrusion block; 58. Friction plate; 510. Column; 511. Positioning sleeve; 513. Limiting rod; 514. Magnetic block; 515. Slider; 516. Threaded rod; 517. Nut; 518. Bearing; 6. Guide groove; 7. Positioning hole; 9. Channel; 10. Slide groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Example

[0017] This invention provides a wind-resistant and vibration-damping photovoltaic support, such as... Figures 1 to 7 As shown, the system includes: a support beam 1, connecting nodes 2, a longitudinal beam 3, an inclined support rod 4, and a damping assembly; the support beam 1 serves as the supporting structure for the photovoltaic bracket; the connecting nodes 2 are fixed to the support beam 1 at intervals along its length to achieve connections between components; the longitudinal beam 3 is connected to the support beam 1 via the connecting nodes 2 to connect the photovoltaic panels; both ends of the inclined support rod 4 are connected to the longitudinal beam 3 and the support beam 1 via the connecting nodes 2, providing support; the damping assembly includes a cylinder 51, a damping shock absorber 52, a connecting sleeve 53, a push rod 54, a compression spring 55, a flip plate 56, a damping compression block 57, and a friction plate 58; the end of the connecting sleeve 53 furthest from the support beam 1 is connected to the damping shock absorber 52, and the end of the damping shock absorber 52 furthest from the connecting sleeve 53 is connected to the cylinder 51; the push rod 54 is convex in shape, with a circular groove in the middle of its outer side; the push rod 54 furthest from the support beam 1... One end of beam 1 extends into the connecting sleeve 53 and is connected to the inner wall of the connecting sleeve 53 via a compression spring 55. A flip plate 56 is rotatably connected inside the connecting sleeve 53. One end of the flip plate 56 is located inside the circular groove and is in contact with the push rod 54. One side of the flip plate 56 is connected to the friction plate 58 via a damping compression block 57. The friction plate 58 is located inside the cylinder 51. In weak winds, the slight force of the inclined support rod 4 is transmitted to the compression spring 55 via the push rod 54, and then acts on the damping shock absorber 52 via the connecting sleeve 53. In strong winds, the larger force of the inclined support rod 4 pushes the push rod 54, causing the compression spring 55 to compress rapidly. The annular groove sidewall of the push rod 54 pushes the end of the flip plate 56, causing the flip plate 56 to rotate around the axis, causing the damping compression block 57 to fit tightly against the friction plate 58. At the same time, the push rod 54, the compressed compression spring 55, and the connecting sleeve 53 work together to exert force on the damping shock absorber 52.

[0018] The photovoltaic support system uses damping shock absorbers 52 to increase wind resistance and vibration reduction performance; however, damping shock absorbers 52 have the following disadvantages in use: On the one hand, if a damper with a larger damping coefficient is used to deal with strong winds, it can play a role in shock absorption during strong winds. However, in the case of lower wind speeds (such as level 3 and below), the larger damping will restrict the normal small deformation and stress release of the support structure, affecting the adaptability of the support structure to low wind conditions. In fact, excessive damping may even generate additional stress on the support structure, which is not conducive to long-term stability. At the same time, the manufacturing process of larger dampers is more complex and requires more materials, which significantly increases the overall cost of photovoltaic support structure, reduces the economic efficiency of the project, and may also affect the flexibility of the support angle adjustment, thereby adversely affecting the power generation efficiency of photovoltaic modules. On the other hand, relying solely on simple elastic elements or a single damping structure is insufficient to effectively cope with the large vibration energy generated by the rapid swaying of photovoltaic supports in strong winds (above level 3). It is difficult to achieve precise matching of vibration reduction efficiency under different wind levels, which leads to excessive vibration of the supports under strong winds, or even structural damage, seriously threatening the safe operation of the photovoltaic system. To address this, a damping component was designed. In weak winds (level 3 and below, when the wind speed is low, the inertial force generated by the push rod 54 is insufficient to instantaneously compress the compression spring 55), the slight force of the inclined support rod 4 directly acts on the damping shock absorber 52, which avoids the large damping limiting the small deformation of the support and prevents the structure from generating additional stress. During strong winds (level 3 and above; for every level increase in wind force, the wind load intensity increases by 1.5-2 times, and the wind pressure on the support increases synchronously, leading to a greater imbalance in the forces between the longitudinal beam 3 and the inclined support rod 4. This causes a sharp increase in the support's swing speed, which in turn causes the push rod 54 to swing rapidly. This results in the push rod 54 generating a force greater than the spring preload, triggering the instantaneous compression spring 55). The large force generated by the rapid swing of the support causes the compression spring 55 to compress instantaneously, and the displacement of the push rod 54 exceeds the set threshold, triggering the compression spring 55. The flip plate 56 flips, causing the damping compression block 57 to fit tightly against the friction plate 58, forming friction damping. Friction damping can dissipate vibration energy. At the same time, the push rod 54, compression spring 55 and connecting sleeve 53 work together on the damping shock absorber 52 to achieve dual vibration reduction of "friction damping dissipation + damper absorption". It can not only efficiently dissipate the large vibration energy under strong wind, but also automatically switch the vibration reduction intensity according to the wind level, accurately match the needs of different wind conditions, avoid excessive vibration of the support or structural damage, and ensure the safe operation of the photovoltaic system.

[0019] In use, the longitudinal beam 3 transmits the vibration force to the inclined support rod 4 through the connecting node 2. At this time, the inclined support rod 4 transmits the force to the damping component through the connecting node 2. When a weak wind blows, the inclined support rod 4 causes the connecting node 2 to swing slightly. When the connecting node 2 swings slightly, the push rod 54 and the compression spring 55 drive the connecting sleeve 53 to press the damping shock absorber 52 to form a buffer. During strong winds, the inclined support rod 4 causes the connecting node 2 to move instantaneously. When the connecting node 2 moves instantaneously, it causes the push rod 54 to move rapidly. When the push rod 54 moves rapidly, it causes the compression spring 55 to compress and simultaneously applies pressure to the connecting sleeve 53, causing the connecting sleeve 53 to press against the damping shock absorber 52. At the same time, when the push rod 54 moves instantaneously, its annular groove sidewall pushes the end of the flip plate 56, driving the flip plate 56 to flip. Through the leverage effect of the flip plate 56, the damping compression block 57 is instantly driven to fit with the friction plate 58, forming a friction damping effect.

[0020] Specifically, the number of support beams 1 is set to three. A connecting node 2 is movably installed between the top ends of each of the three support beams 1. A longitudinal beam 3 is installed between the top ends of the connecting nodes 2 via screws. An inclined support rod 4 is installed between the bottom end of the longitudinal beam 3 and the vertical plane of the support beam 1 via the connecting node 2. A cylinder 51 is fixedly installed inside the longitudinal beam 3. A damping shock absorber 52 is installed on one end face of the cylinder 51 via screws. A connecting sleeve 53 is installed on one end face of the damping shock absorber 52 via screws. A push rod 54 is slidably connected inside the connecting sleeve 53. The shape of the push rod 54 is... The push rod 54 has a convex shape and a circular groove in the middle of its outer side. One end of the flip plate 56 is located inside the circular groove and fits against the push rod 54. A compression spring 55 is fixedly installed inside the connecting sleeve 53 between the opposite face of the push rod 54 (the preload of the compression spring 55 is set to 1.2-1.5 times the maximum thrust value of level 3 wind). The flip plate 56 is symmetrically rotated inside the connecting sleeve 53. A damping compression block 57 is provided on the outer side of the flip plate 56. A friction plate 58 is fixedly installed on the inner wall of the cylinder 51. The connection node 2 of the vertical surface of the longitudinal beam 3 is installed with the push rod 54 by screws.

[0021] like Figure 4 and Figure 5 As shown, since the damping compression block 57 needs to be reset after moving, to prevent the entire device from failing to operate due to the damping compression block 57 not being able to reset after moving, a limit reset structure is provided inside the damping compression block 57. The limit reset structure includes: a limit rod 513 and a magnetic block 514. The limit rod 513 is connected to the outer wall of the connecting sleeve 53; the magnetic block 514 is connected to the opposite surface of the damping compression block 57 and the connecting sleeve 53; the damping compression block 57 is arranged along the axial direction of the limit rod 513, and the magnetic block 514 (the material of the magnetic block 514 is neodymium iron boron magnet) and the iron connecting sleeve 53 generate an attraction force, driving the damping compression block 57 to reset.

[0022] When in use, when the flip plate 56 rotates, it drives the fixed column to move vertically along the length direction of the fixed column through the diversion groove. When the fixed column moves vertically, it drives the magnetic block 514 to move. When the magnetic block 514 moves vertically, it drives the damping extrusion block 57 to move towards the inner wall of the friction plate 58.

[0023] Specifically, magnetic blocks 514 are symmetrically embedded at the bottom of the damping extrusion block 57. Both the magnetic blocks 514 and the damping extrusion block 57 have round holes inside. A limit rod 513 is slidably connected inside the round hole. One end of the limit rod 513 is welded to the outside of the connecting sleeve 53 (the connecting sleeve 53 is made of iron). A fixing post is embedded between the opposite faces of the two magnetic blocks 514. A flow channel is opened inside the flip plate 56. The fixing post is located inside the flow channel. The magnetic blocks 514 are set in two groups, with two magnetic blocks 514 in each group. They are symmetrically distributed on the damping extrusion block 57 and at both ends near the connecting sleeve 53. The adsorption surfaces of the magnetic blocks 514 and the connecting sleeve 53 are polished to increase the adsorption effect. The side of the damping extrusion block 57 near the friction plate 58 has an arc-shaped contact surface. The curvature of the arc-shaped contact surface matches the curvature of the inner wall of the friction plate 58.

[0024] like Figure 3 As shown, the compression spring 55 is compressed due to the pressure during strong winds, and the compression spring 55 will tilt during the compression process. Therefore, the compression spring 55 needs to be limited. A limiting structure is provided between the push rod 54 and the connecting sleeve 53. The limiting structure includes: a column 510 and a positioning sleeve 511. The column 510 is connected to the push rod 54; the positioning sleeve 511 is sleeved on the column 510 and one end is connected to the connecting sleeve 53; the compression spring 55 is sleeved on the outside of the positioning sleeve 511 and the column 510.

[0025] When in use, as the push rod 54 moves, it drives the column 510 to move along the inside of the positioning sleeve 511. At this time, the push rod 54 moves and drives the compression spring 55 to be compressed. After being compressed, the compression spring 55 is located outside the column 510 and the positioning sleeve 511. The column 510 and the positioning sleeve 511 cooperate to axially constrain the compression spring 55 and prevent it from becoming unstable and bending.

[0026] Specifically, a column 510 is embedded in one end face of the push rod 54, and a positioning sleeve 511 is sleeved on the outside of the column 510. The positioning sleeve 511 and the column 510 are fitted with a clearance (0.1-0.3mm). The positioning sleeve 511 is welded to the inside of the connecting sleeve 53.

[0027] like Figures 3 to 6As shown, since the flip plate 56 requires a fulcrum when rotating, and the position of the fulcrum needs to be adjusted, the reaction speed of the flip plate 56 driving the damping compression block 57 varies. Therefore, a connecting fulcrum structure is provided between the flip plate 56 and the connecting sleeve 53. The connecting fulcrum structure includes: a slider 515, a threaded rod 516, a nut 517, and a bearing 518. The threaded rod 516 is located inside the flip plate 56. Two nuts 517 are provided, located outside the threaded rod 516. The bearing 518 is connected to the nut 517 and sleeved on the outside of the threaded rod 516. The nut 517 drives the bearing 518 to be inserted into the flip plate 56 and the connecting sleeve 53 along the threaded rod 516. A slider 515 is welded to one end of the threaded rod 516, and the slider 515 is slidably connected inside the connecting sleeve 53.

[0028] In use, rotate the nut 517. The nut 517 rotates and moves along the outside of the threaded rod 516, thereby driving the bearing 518 to move. When the bearing 518 moves, it separates from the flip plate 56 and the connecting sleeve 53. Then push the threaded rod 516. The threaded rod 516 drives the slider 515 to move inside the flip plate 56 and then enters another position. Then install the bearing 518 into the flip plate 56 and the connecting sleeve 53 respectively. During operation, when the flip plate 56 rotates, it drives the threaded rod 516 to rotate through the slider 515. At this time, due to the action of the bearing 518, the threaded rod 516 rotates synchronously, causing the nut 517 to rotate, which results in the nut 517 being unable to move along the outside of the threaded rod 516, causing the threaded rod 516 and the nut 517 to spin freely.

[0029] Specifically, the flip plate 56 has symmetrically formed grooves 10 inside, and a slider 515 is slidably connected to the inside of the flip plate 56 at the position of the groove 10. A threaded rod 516 is welded to one end face of the slider 515. A groove 9 is formed inside the flip plate 56 at the position corresponding to the outer side of the threaded rod 516. Nuts 517 are symmetrically connected to the outer side of the threaded rod 516 by threads. A bearing 518 is welded to one end of the nut 517. The inner ring of the bearing 518 is slidably connected to the outer side of the threaded rod 516 and welded to the nut 517. Multiple positioning holes 7 are symmetrically formed at equal intervals between the inner walls of the flip plate 56 and the connecting sleeve 53. The inner diameter of the positioning hole 7 is equal to the outer diameter of the bearing 518. A guide groove 6 is symmetrically formed on the outer side of the connecting sleeve 53. The flip plate 56 is located inside the guide groove 6.

[0030] Working principle: In actual use, the operator rotates the nut 517, which rotates and moves along the outside of the threaded rod 516, thereby driving the bearing 518 to move. When the bearing 518 moves, it separates from the flip plate 56 and the connecting sleeve 53, and then pushes the threaded rod 516. The threaded rod 516 drives the slider 515 to move inside the flip plate 56 and then enters another position. Then, the bearing 518 is installed inside the flip plate 56 and the connecting sleeve 53 respectively (the positions of the two threaded rods 516 are adjusted so that the center lines coincide), which changes the position of the rotation node. When operating in a weak wind, the wind blows the photovoltaic panel, causing the longitudinal beam 3 to vibrate slightly. The longitudinal beam 3 transmits the vibration force to the inclined support rod 4 through the connecting node 2. The inclined support rod 4 then transmits the force to the push rod 54 through the connecting node 2. The push rod 54 is subjected to a slight force and transmits the force to the compression spring 55. Since the slight force on the push rod 54 is insufficient to reach the spring preload of the compression spring 55, the compression spring 55 cannot be compressed. As a result, when the push rod 54 moves, it drives the connecting sleeve 53 to move through the compression spring 55. The force is transmitted to the damping shock absorber 52 through the connecting sleeve 53. The damping shock absorber 52 absorbs the vibration energy. At the same time, the column 510 slides along the positioning sleeve 511 to prevent the compression spring 55 from tilting and ensure smooth operation. At this time, the inertial force of the push rod 54 is less than the preload of the compression spring 55, the flip plate 56 does not flip, and the damping compression block 57 remains separated from the friction plate 58 to avoid excessive damping and limiting the small deformation of the bracket. During operation in strong winds, the wind load intensity increases, exacerbating the imbalance of the support structure and causing a sharp increase in sway speed. The tilting support rod 4 causes the connecting node 2 to move instantaneously, driving the push rod 54 to move rapidly. The instantaneous force of the push rod 54 exceeds the preload of the compression spring 55, causing the compression spring 55 to compress rapidly. Simultaneously, the column 510 slides along the positioning sleeve 511, axially constraining the compression spring 55 to prevent instability and bending. As the push rod 54 moves rapidly, its grooved sidewall presses against the end of the flip plate 56, triggering the flip plate 56 to rotate around the preset connecting fulcrum structure (when the flip plate 56 rotates, it drives the threaded rod 516 to rotate via the slider 515). At this time, under the action of bearing 518, the threaded rod 516 rotates synchronously with the nut 517, causing the nut 517 to be unable to move along the outside of the threaded rod 516, resulting in the threaded rod 516 and the nut 517 spinning freely. The flipping plate 56 drives the damping compression block 57 to slide along the limit rod 513 through the lever effect, and it is tightly attached to the arc-shaped contact surface of the friction plate 58 to form friction damping. At the same time, the push rod 54, the compressed compression spring 55 and the connecting sleeve 53 jointly apply force to the damping shock absorber 52. The damping shock absorber 52 absorbs the remaining energy and realizes the dual vibration reduction of "friction dissipation + damping absorption". When the wind weakens to below level 3, the force on the push rod 54 drops to the level of weak wind. The elastic potential energy of the compression spring 55 is released, pushing the push rod 54 to reset. After the push rod 54 resets, the squeezing force of its circular groove on the flip plate 56 disappears. Under the attraction of the magnetic block 514 and the iron connecting sleeve 53, the damping squeezing block 57 slides back to reset along the limiting rod 513, causing the flip plate 56 to return to the center position. This causes the damping squeezing block 57 to separate from the friction plate 58. At this time, the compression spring 55, the limiting structure, and the connecting fulcrum structure all return to their initial state, waiting for the next wind condition response.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A wind resistant, shock absorbing photovoltaic racking, characterized by, The utility model relates to a photovoltaic support structure, comprising: a support beam (1) as a support structure of photovoltaic support; a connecting node (2) fixed to the support beam (1) along the length direction of the support beam (1) for connecting components; a longitudinal beam (3) connected to the support beam (1) through the connecting node (2) for connecting photovoltaic panels; an inclined support rod (4) connected to the longitudinal beam (3) and the support beam (1) through the connecting node (2) for support; a damping assembly comprising a cylinder (51), a damping shock absorber (52), a connecting sleeve (53), a push rod (54), a compression spring (55), a turnover plate (56), a damping extrusion block (57), and a friction plate (58); the connecting sleeve (53) is connected to the damping shock absorber (52) at one end away from the support beam (1), the damping shock absorber (52) is connected to the cylinder (51) at one end away from the connecting sleeve (53), the push rod (54) extends into the connecting sleeve (53) at one end away from the support beam (1) and is connected to the inner wall of the connecting sleeve (53) through the compression spring (55), the turnover plate (56) is rotatably connected inside the connecting sleeve (53), one side of the turnover plate (56) is connected to the friction plate (58) through the damping extrusion block (57), and the friction plate (58) is arranged inside the cylinder (51).

2. A wind resistant, shock absorbing photovoltaic racking system according to claim 1, wherein, The damping extrusion block (57) is provided with a limiting reset structure inside, the limiting reset structure comprising: a limiting rod (513) connected to the outer wall of the connecting sleeve (53); a magnetic attraction block (514) connected to the opposite surfaces of the damping extrusion block (57) and the connecting sleeve (53); the damping extrusion block (57) is arranged along the axial direction of the limiting rod (513), and the adsorption force between the magnetic attraction block (514) and the connecting sleeve (53) drives the damping extrusion block (57) to reset.

3. A wind resistant, shock absorbing photovoltaic racking system according to claim 2, wherein, One end of the magnetic attraction block (514) is embedded with a fixed column, the turnover plate (56) is provided with a drainage groove inside, and the fixed column is located inside the drainage groove.

4. A wind resistant, shock absorbing photovoltaic racking system according to claim 2, wherein, A limiting structure is arranged between the push rod (54) and the connecting sleeve (53), and the limiting structure comprises: a stand column (510) connected to the push rod (54); a positioning sleeve (511) sleeved to the stand column (510) and connected to the connecting sleeve (53) at one end; the compression spring (55) is sleeved to the outer side of the positioning sleeve (511) and the stand column (510).

5. A wind resistant, shock absorbing photovoltaic racking system according to claim 2, wherein, A connecting fulcrum structure is arranged between the turnover plate (56) and the connecting sleeve (53), and the connecting fulcrum structure comprises: a threaded rod (516) arranged inside the turnover plate (56); two nuts (517) arranged outside the threaded rod (516); a bearing (518) connected to the nut (517) and sleeved to the outer side of the threaded rod (516); the nut (517) drives the bearing (518) to be inserted into the turnover plate (56) and the connecting sleeve (53) along the threaded rod (516).

6. A wind resistant, shock absorbing photovoltaic racking system according to claim 5, wherein, One end of the threaded rod (516) is welded with a sliding block (515) which is slidingly connected to the inside of the connecting sleeve (53).

7. A wind resistant, shock absorbing photovoltaic racking system according to claim 2, wherein, The magnetic attraction blocks (514) are provided in two groups, and the number of the magnetic attraction blocks (514) in each group is two, which are symmetrically distributed on the damping extrusion blocks (57) and close to the two ends of the side of the connecting sleeve (53), and the adsorption surfaces of the magnetic attraction blocks (514) and the connecting sleeve (53) are polished.

8. A wind resistant, shock absorbing photovoltaic racking system according to claim 1, wherein, The damping extrusion blocks (57) are provided with arc contact surfaces on the side close to the friction plates (58), and the curvature of the arc contact surfaces is adapted to the curvature of the inner wall of the friction plates (58).

9. A wind resistant, shock absorbing photovoltaic racking system according to claim 1, wherein, The push rod (54) is convex in shape, a circular groove is formed in the middle of the outer side of the push rod (54), and one end of the turnover plate (56) is located in the circular groove and is attached to the push rod (54).

Images