Photovoltaic support stand column adjusting mechanism

Abstract

The invention relates to the technical field of photovoltaics, and discloses a photovoltaic support stand column adjusting mechanism which comprises a plurality of stand columns with the height capable of being independently adjusted. Each stand column comprises a lower column casing, an upper sliding column connected into the lower column casing in a sliding mode, a connecting piece arranged at the upper end of the upper sliding column, a locking mechanism arranged in the lower column casing and a balance detection device arranged among the multiple stand columns, and the balance detection device comprises at least one balance beam. A rollable balance ball and an arc-shaped groove used for limiting the position of the balance ball are arranged in the balance beam, and the inner wall of the bottom of the balance beam is arranged to be an inclined face inclining towards the arc-shaped groove. The photovoltaic module mounting structure fixed by the connecting piece can be prevented from bearing additional torque, structural damage caused by stress concentration is reduced, the overall stability and operation safety of the photovoltaic support are remarkably improved, and the service life of the support is prolonged.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and more specifically to a photovoltaic support column adjustment mechanism. Background Technology

[0002] Photovoltaic support structures are metal structural systems designed for installing and fixing photovoltaic modules. They are typically made of aluminum alloy, carbon steel, or stainless steel and are characterized by corrosion resistance, high load-bearing capacity, and long lifespan. Their core function is to serve as the "skeleton" of the power station, resisting external forces such as wind loads and snow pressure, and ensuring the stable operation of the modules in complex environments. In areas with strong winds, wind resistance can be reduced by lowering the height of the support structure or adjusting its angle. In northern regions during winter, the tilt angle can be increased to prevent snow accumulation and reduce shading losses. At the same time, since the solar altitude angle changes with the seasons, adjusting the tilt angle of the support columns can keep the photovoltaic modules close to the optimal angle of sunlight reception, maximizing the reception of solar radiation and increasing power generation. The column adjustment function, by adapting to geographical, seasonal, and weather variables, has become a key design feature for balancing power generation revenue, safety, and cost. Existing photovoltaic (PV) support columns are typically adjustable independently, so the installation location of PV supports is usually unrestricted and can be installed on both slopes and flat terrain. However, when installing PV supports on slopes, the height difference of the slope, even on the same slope, can cause differences in the height of adjacent column foundations due to local depressions or protrusions. Therefore, the foundations of the four columns of the same support group cannot be on the same horizontal plane. During the installation of the support, workers need to adjust the height of each column independently. Since there is a certain distance between the columns, there may be some errors when manually adjusting the height of the columns. This can cause the inclined beams and crossbeams of the support to bear additional torque. Long-term uneven stress can lead to stress concentration, and may even cause weld cracking and support collapse. Summary of the Invention

[0003] This invention provides a photovoltaic support column adjustment mechanism to solve the above-mentioned problems.

[0004] This invention provides a photovoltaic support column adjustment mechanism, comprising: Multiple independently adjustable columns, each column including a lower column cylinder and an upper sliding column slidably connected within the lower column cylinder; A connecting piece located at the upper end of the upper sliding column; A locking mechanism located inside the lower column is used to lock or release the sliding of the upper sliding column; And a balance detection device disposed between the plurality of columns, the balance detection device comprising at least one balance beam, wherein the balance beam is provided with a rollable balance ball and an arc-shaped groove for limiting the position of the balance ball, and the bottom inner wall of the balance beam is configured as an inclined surface inclined toward the arc-shaped groove.

[0005] The photovoltaic support column adjustment mechanism operates around balance detection and precise adjustment. The balance detection device connects multiple columns via a balance beam. The inclined surface of the inner wall at the bottom of the balance beam provides a rolling guide for the balance ball. When there is a height deviation among the columns, the balance ball will disengage from the arc-shaped groove and roll along the inclined surface towards the lower column, providing direct feedback on the height difference between the columns. Workers can calibrate the column height by adjusting the sliding position of the upper sliding column within the lower column cylinder based on the rolling direction of the balance ball. Once the column heights are consistent, the balance ball will roll back into the arc-shaped groove along the inclined surface, completing the balance calibration. Subsequently, a locking mechanism fixes the relative position of the upper sliding column and the lower column cylinder, ensuring stable column height. By utilizing the balance ball in conjunction with the inclined surface and arc-shaped groove, it can quickly and accurately detect the consistency of column height, avoiding errors from manual adjustment and ensuring uniform column height. This prevents the photovoltaic module installation structure, which is fixed by the connectors, from bearing additional torque, reducing structural damage caused by stress concentration, significantly improving the overall stability and operational safety of the photovoltaic support system, and extending its service life.

[0006] In one alternative implementation, the balance detection device includes two transverse beams and one vertical beam, forming an I-shaped structure. Each of the transverse beams and the vertical beams is provided with a balance ball and an arc-shaped groove.

[0007] In one optional embodiment, the locking mechanism includes two clamping plates symmetrically arranged inside the lower column, the clamping plates being able to move relative to each other to clamp or release the upper sliding column; The locking mechanism also includes a handle threadedly connected to the lower cylinder, wherein one of the locking plates is rotatably connected to the end of the handle.

[0008] In one optional embodiment, the locking mechanism further includes a wedge plate and a conical plate. The wedge plate is disposed on both sides of the locking plate, and the conical plate engages with the inclined surface of the wedge plate, so that when the handle rotates, it drives the two locking plates to move synchronously in opposite directions.

[0009] In one optional implementation, a height compensation mechanism is further included, the height compensation mechanism comprising: A third spring is provided between the connector and the upper sliding column; A retractable limiting unit is provided inside the upper sliding column to limit the displacement of the connecting member; And a drive unit for controlling the limiting unit to release the connector when a height deviation is detected, so that the third spring pushes the connector up to compensate for the height.

[0010] In one optional embodiment, the limiting unit includes a plurality of magnetic plates that are laterally slidably mounted on the inner wall of the upper sliding column, and the magnetic plates are connected to the upper sliding column via elastic rods; The drive unit includes a vertically movable magnetic strip, which engages with the magnetic plate through magnetic repulsion to control the extension and retraction of the magnetic plate.

[0011] In one optional implementation, the drive unit further includes: A magnetic sheet is slidably disposed within the upper sliding column and is linked with the magnetic strip; A ratchet mechanism, including a pawl and a ratchet, is used to convert the lateral movement of the magnetic sheet into the vertical movement of the magnetic strip.

[0012] In one alternative embodiment, the balance detection device includes a sliding magnetic rod that engages with the magnetic sheet through magnetic repulsion, thereby driving the magnetic sheet to move when a height deviation is detected.

[0013] In one optional embodiment, a pneumatic buffer mechanism is further included, the pneumatic buffer mechanism comprising: A funnel-shaped rubber ring is provided at the bottom of the lower column cylinder; A sealing plate used to control the opening and closing of the rubber ring; And a push rod connected to the sealing plate via a connecting rope, the push rod being mounted on the handle.

[0014] In one optional embodiment, a height adjustment mechanism is further included, the height adjustment mechanism comprising: The fixing rod and collar are fixed inside the upper sliding column; Connect the steel wire corresponding to the collar; And to rotate the winding shaft provided on the lower column cylinder to wind up and unwind the steel wire to adjust the height of the upper sliding column. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the upper sliding column in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4This is a schematic diagram of the internal structure of the lower column in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of the handle in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the wedge plate and conical plate structure in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the sealing plate and rubber ring structure in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the internal structure of the balance frame in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the magnetic sheet structure in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 10 for Figure 9 Enlarged structural diagram at point B; Figure 11 This is a schematic diagram of the limiting ring and magnetic strip structure in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the magnetic strip and magnetic plate structure in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the slide and push plate structure in a photovoltaic support column adjustment mechanism according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Column; 2. Base; 3. Lower column cylinder; 4. Upper sliding column; 5. Connector; 6. Clamping plate; 7. Handle; 8. Balance frame; 9. Horizontal beam; 10. Vertical beam; 11. Positioning hole; 12. Balance ball; 13. Arc groove; 14. Slider; 15. Magnetic block; 16. First spring; 17. Magnetic rod; 18. Baffle; 19. Magnetic sheet; 20. Fixing plate; 21. Pawl; 22. Torsion spring; 23. Ratchet; 24. Screw; 25. Limiting ring; 26. Magnetic strip 27. Third spring; 28. Limiting strip; 29. ​​Magnetic plate; 30. Elastic rod; 31. Slide groove; 32. Push plate; 33. Fixing rod; 34. Collar; 35. Steel wire; 36. Spiral groove; 37. Sealing gasket; 38. Rubber ring; 39. Sealing plate; 40. Fourth spring; 41. Connecting rope; 42. Wedge plate; 43. Conical plate; 44. Guide strip; 45. Guide groove; 46. Second spring; 47. Winding spool; 48. Push rod; 49. Fifth spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Photovoltaic support structures are metal structural systems designed for installing and fixing photovoltaic modules. They are typically made of aluminum alloy, carbon steel, or stainless steel and are characterized by corrosion resistance, high load-bearing capacity, and long lifespan. Their core function is to serve as the "skeleton" of the power station, resisting external forces such as wind loads and snow pressure, and ensuring the stable operation of the modules in complex environments. In areas with strong winds, wind resistance can be reduced by lowering the height of the support structure or adjusting its angle. In northern regions during winter, the tilt angle can be increased to prevent snow accumulation and reduce shading losses. At the same time, since the solar altitude angle changes with the seasons, adjusting the tilt angle of the support columns can keep the photovoltaic modules close to the optimal angle of sunlight reception, maximizing the reception of solar radiation and increasing power generation. The column adjustment function, by adapting to geographical, seasonal, and weather variables, has become a key design feature for balancing power generation revenue, safety, and cost. Existing photovoltaic (PV) support columns are typically adjustable independently, so the installation location of PV supports is usually unrestricted and can be installed on both slopes and flat terrain. However, when installing PV supports on slopes, the height difference of the slope, even on the same slope, can cause differences in the height of adjacent column foundations due to local depressions or protrusions. Therefore, the foundations of the four columns of the same support group cannot be on the same horizontal plane. During the installation of the support, workers need to adjust the height of each column independently. Since there is a certain distance between the columns, there may be some errors when manually adjusting the height of the columns. This can cause the inclined beams and crossbeams of the support to bear additional torque. Long-term uneven stress can lead to stress concentration, and may even cause weld cracking and support collapse.

[0020] The following is combined with Figures 1 to 13 The following describes embodiments of the present invention.

[0021] According to an embodiment of the present invention, a photovoltaic support column adjustment mechanism is provided, comprising a plurality of independently adjustable columns 1. Each column 1 includes a lower column cylinder 3 and an upper sliding column 4 slidably connected within the lower column cylinder 3, a connector 5 disposed at the upper end of the upper sliding column 4, a locking mechanism disposed within the lower column cylinder 3, and a balance detection device disposed among the plurality of columns 1. The balance detection device includes at least one balance beam, and the balance beam is provided with a rollable balance ball 12 and an arc-shaped groove 13 for limiting the position of the balance ball 12. The bottom inner wall of the balance beam is configured as an inclined surface inclined toward the arc-shaped groove 13.

[0022] The working principle of this photovoltaic support column adjustment mechanism revolves around balance detection and precise adjustment. The balance detection device connects multiple columns 1 through a balance beam. The inclined surface of the inner wall at the bottom of the balance beam provides a rolling guide for the balance ball 12. When there is a height deviation among the columns 1, the balance ball 12 will disengage from the arc groove 13 and roll along the inclined surface toward the column 1 with the lower height, providing a direct feedback on the height difference between the columns 1. Workers can calibrate the height of the columns 1 by adjusting the sliding position of the upper sliding column 4 in the lower column cylinder 3 according to the rolling direction of the balance ball 12. When the height of each column 1 tends to be consistent, the balance ball 12 will roll back into the arc groove 13 along the inclined surface to complete the balance calibration. Then, the relative position of the upper sliding column 4 and the lower column cylinder 3 is fixed by the locking mechanism to ensure the stability of the column 1 height. By utilizing the combination of the balance ball 12, the inclined plane, and the arc groove 13, it can quickly and accurately detect the height consistency of the column 1, avoid the error of manual adjustment, keep the height of each column 1 uniform, and thus prevent the photovoltaic module installation structure fixed by the connector 5 from bearing additional torque, reduce structural damage caused by stress concentration, significantly improve the overall stability and operational safety of the photovoltaic bracket, and extend the service life of the bracket.

[0023] Specifically, the photovoltaic support column 1 adjustment mechanism includes four independently adjustable columns 1, each of which is fixedly installed on a concrete foundation via a base 2.

[0024] In one embodiment, the balance detection device includes two horizontal beams 9 and one vertical beam 10, forming an I-shaped structure; each horizontal beam 9 and vertical beam 10 is provided with a balance ball 12 and an arc-shaped groove 13.

[0025] Two horizontal beams 9 are fixedly connected to the two ends of the vertical beam 10, forming the main body of the I-shaped balance detection device. This I-shaped structure is connected to multiple columns 1 through the horizontal beams 9, covering the horizontal and vertical distribution range of the columns 1, and realizing the linkage detection of the height status of all columns 1. The bottom inner wall of each horizontal beam 9 and vertical beam 10 is set as an inclined surface that slopes inward toward the arc groove 13. During operation, if the height of each column 1 is consistent, the horizontal beams 9 and vertical beams 10 are in a horizontal state, and the balance ball 12 inside will roll along the inclined surface into the arc groove 13 under the action of gravity, and the arc groove 13 will then balance the balance ball 12. The limit position indicates that the height of column 1 meets the balance requirements. If there is a height difference between columns 1 in a certain direction (horizontal or longitudinal), the horizontal beam 9 or vertical beam 10 in the corresponding direction will tilt as the height of column 1 changes. The balance ball 12 inside will disengage from the limit position of the arc groove 13 and roll along the inclined surface toward the side of the lower column 1, thus providing a direct feedback on the direction and position of the height deviation of column 1. After adjusting the columns 1 to restore the height of each column 1 to a consistent level, the tilted horizontal beam 9 or vertical beam 10 returns to horizontal, and the balance ball 12 will roll back into the arc groove 13 along the inclined surface, completing a complete balance test and calibration process. Specifically, each horizontal beam 9 is fixed to the corresponding upper sliding column 4 at both ends by bolts, and each upper sliding column 4 has several positioning holes 11 on one side for limiting the balance frame 8.

[0026] In one embodiment, the locking mechanism includes two locking plates 6 symmetrically arranged inside the lower cylinder 3, which can move relative to each other to clamp or release the upper sliding column 4; the locking mechanism also includes a handle 7 threadedly connected to the lower cylinder 3, wherein one of the locking plates 6 is rotatably connected to the end of the handle 7.

[0027] The two locking plates 6 are symmetrically arranged inside the lower cylinder 3. They can move relative to each other in the transverse direction of the lower cylinder 3 to clamp or release the upper sliding column 4. The end of one of the locking plates 6 is rotatably connected to the handle 7, and the handle 7 is threadedly engaged with the lower cylinder 3. This connection method allows the rotational movement of the handle 7 to be converted into its own axial displacement, thereby driving the locking plate 6 connected to it to move synchronously. During operation, when it is necessary to lock the upper sliding column 4 to fix the height of the column 1, rotate the handle 7. Due to the threaded action between the handle 7 and the lower column cylinder 3, the handle 7 will move towards the center of the lower column cylinder 3, simultaneously driving the clamping plate 6 connected to it to move inward. This clamping plate 6 will then drive another symmetrical clamping plate 6 to move synchronously towards each other. The two clamping plates 6 gradually approach and clamp the upper sliding column 4, thereby restricting the sliding of the upper sliding column 4 within the lower column cylinder 3. When it is necessary to adjust the height of the column 1 and release the upper sliding column 4, rotate the handle 7 in the opposite direction. The handle 7 will move away from the center of the lower column cylinder 3, pulling the connected clamping plate 6 outward. The other clamping plate 6 will also move in the opposite direction. The two clamping plates 6 will move away from each other, releasing the clamping constraint on the upper sliding column 4. At this time, the upper sliding column 4 can slide freely within the lower column cylinder 3 to adjust the height. After the height adjustment is completed, rotate the handle 7 in the forward direction again. The relative movement of the clamping plates 6 will re-clamp the upper sliding column 4, completing the locking operation.

[0028] In one embodiment, the locking mechanism further includes a wedge plate 42 and a conical plate 43. The wedge plate 42 is disposed on both sides of the locking plate 6, and the conical plate 43 engages with the inclined surfaces of the wedge plate 42, so that when the handle 7 rotates, it drives the two locking plates 6 to move synchronously in opposite directions.

[0029] In the locking mechanism, each card plate 6 has a wedge plate 42 fixed on both sides, and a conical plate 43 adapted to the inclined surface of the wedge plate 42 is provided in the lower column cylinder 3. Guide strips 44 are provided on the inclined surfaces of both sides of the lower end of the conical plate 43, and guide grooves 45 that cooperate with the guide strips 44 are opened on the inclined surface of the wedge plate 42. The guide strips 44 are embedded in the guide grooves 45 to form a sliding guide structure. Figure 6The end of the left-handle plate 6 is rotatably connected to the handle 7, which is threadedly connected to the lower column cylinder 3. Through the inclined surface cooperation of the wedge plate 42 and the tapered plate 43, and the guiding and limiting of the guide strip 44 and the guide groove 45, a structure is constructed in which the handle 7 drives the two plates 6 in linkage. When the height of the column 1 needs to be adjusted, the handle 7 is rotated to a horizontal position. Since the handle 7 is threadedly connected to the lower column cylinder 3, the rotation of the handle 7 will drive the end plate 6 to move outwards from the lower column cylinder 3. When one plate 6 moves outwards from the lower column cylinder 3... The guide groove 45 limits the guide bar 44, causing the corresponding conical plate 43 to move downwards and push the wedge plate 42 and the clamping plate 6 on the other side to move synchronously to the outside of the lower column cylinder 3. This causes the two clamping plates 6 to move in opposite directions, releasing the lock on the upper sliding column 4 and allowing the height of the column 1 to be adjusted. When it is necessary to lock the height of the column 1, the handle 7 is rotated to the vertical position. The wedge plate 42 will push the corresponding conical plate 43 upwards, and the two clamping plates 6 will move relative to each other, clamping the upper sliding column 4 and fixing the height of the column 1. During this process, the guide groove 45 needs to be in constant engagement with the guide bar 44. Therefore, the guide bar 44 can be limited and abutted at the opening of the guide groove 45 to prevent it from disengaging. At the same time, in order to ensure that the conical plate 43 can only move up and down, a limiting shaft is passed through the conical plate 43 and fixed to the lower column cylinder 3.

[0030] In one embodiment, two sliders 14 are symmetrically slidably installed inside each transverse beam 9. Each slider 14 is fixedly connected to the inner wall of the transverse beam 9 by a first spring 16. Magnetic rods 17 are fixedly installed at both ends of each slider 14. Two magnetic blocks 15 are symmetrically slidably installed inside the vertical beam 10. Each magnetic block 15 is fixedly connected to the inner wall of the vertical beam 10 by a fifth spring 49. The magnetic properties of the magnetic blocks 15 and the magnetic rods 17 are repelled. Four baffles 18 are symmetrically arranged inside the vertical beam 10 to limit the movement of the balance ball 12. During the long-term use of the photovoltaic support, the concrete foundations of different columns 1 are affected by strong winds and rain. The sound will cause varying degrees of settlement, resulting in a height difference between the columns 1 again and causing the support to tilt. When the support tilts to a certain angle, the corresponding balance ball 12 will disengage from the limit of the arc groove 13 and roll towards the side with the lower height. If one column 1 is lower, the balance ball 12 in the corresponding transverse beam 9 will roll towards the corresponding column 1. The balance ball 12 will push the corresponding slider 14 and magnetic rod 17 to slide towards the column 1, and compress the first spring 16. If the other transverse beam 9 tilts less, the corresponding balance ball 12 cannot disengage from the limit of the arc groove 13. At the same time, one end of the vertical beam 10 tilts towards the corresponding column 1. After the internal balance ball 12 is released from the limit of the arc groove 13, it will roll towards the corresponding column 1 within the vertical beam 10 and will eventually be intercepted by the corresponding baffle 18, preventing the balance ball 12 from colliding with the magnetic block 15. When the two columns 1 are at a lower height, if the two columns 1 are located on one side, both horizontal beams 9 will tilt, and the internal balance balls 12 will slide, pushing the corresponding slider 14. The vertical beam 10 will be biased to one side, and the internal balance balls 12 will slide towards the inner wall of the vertical beam 10 without contacting the magnetic block 15. If both columns 1 are located in the front or back row, neither of the two horizontal beams 9 will tilt, but the vertical beam 10 will tilt vertically. At this time, the balance ball 12 inside the vertical beam 10 will roll to the side with lower height and pass between the two baffles 18. After colliding with the magnetic block 15, it will push the end of the magnetic block 15 into the corresponding horizontal beam 9. Since the magnetism of the magnetic block 15 and the magnetic rod 17 are repelled, the two sliders 14 inside the corresponding horizontal beam 9 will move in opposite directions, causing the corresponding magnetic rod 17 to move towards the two columns 1 with lower height. If the two columns 1 with lower height are set diagonally, the balance ball 12 inside the two horizontal beams 9 will roll towards the column 1 with lower height. The vertical beam 10 is tilted by a small amount, and the balance ball 12 inside it cannot get out of the arc groove 13 limit.

[0031] In one embodiment, the photovoltaic support column 1 adjustment mechanism further includes a height compensation mechanism. The height compensation mechanism includes a third spring disposed between the connector 5 and the upper sliding column 4, a retractable limiting unit disposed within the upper sliding column 4 to limit the displacement of the connector 5, and a drive unit to control the limiting unit to release the connector 5 when a height deviation is detected, causing the third spring 27 to push the connector 5 upward to compensate for the height. The limiting unit includes multiple magnetic plates 29 laterally slidably mounted on the inner wall of the upper sliding column 4, the magnetic plates 29 being connected to the upper sliding column 4 via elastic rods 30. The drive unit includes a vertically movable magnetic strip 26, the magnetic strip 26 engaging with the magnetic plates 29 through magnetic repulsion, used to control the extension and retraction of the magnetic plates 29. The drive unit also includes a magnetic sheet 19 and a ratchet mechanism. The magnetic sheet 19 is laterally slidably disposed within the upper sliding column 4 and linked with the magnetic strip 26. The ratchet mechanism includes a pawl 21 and a ratchet 23, used to convert the lateral movement of the magnetic sheet 19 into the vertical movement of the magnetic strip 26. The balance detection device is equipped with a sliding magnetic rod 17, which is magnetically repulsed by the magnetic plate 19 and is used to drive the magnetic plate 19 to move when a height deviation is detected.

[0032] Specifically, each upper sliding column 4 has a magnetic sheet 19 horizontally slidably installed inside. The magnetic sheet 19 and the magnetic rod 17 are magnetically repelled. Each magnetic sheet 19 is fixedly connected to the inner wall of the upper sliding column 4 with two second springs 46. A fixing plate 20 is fixedly installed on one side of the upper end of each magnetic sheet 19. A pawl 21 is rotatably installed at the lower end of each fixing plate 20. A torsion spring 22 is fixedly connected between each pawl 21 and the corresponding fixing plate 20. A ratchet 23 that cooperates with the pawl 21 is rotatably installed inside each upper sliding column 4. A screw 24 is fixedly installed at the upper end of each ratchet 23. A limiting ring 25 that cooperates with the screw 24 is vertically slidably installed inside each upper sliding column 4. Each limiting ring 25 has a magnetic strip 26 fixedly installed on both sides. Each connector 5 is fixedly connected to the inner wall of the top of the upper sliding column 4 with a third spring 27. Each connector 5 has a limiting strip 28 fixedly installed on both sides. Several magnetic plates 29 for limiting the limiting strip 28 are horizontally slidably installed on the inner walls of both sides of the upper end of each upper sliding column 4. The magnetic plates 29 are arranged vertically and their magnetism is repelled by the magnetic strip 26. Each magnetic plate 29 is fixedly connected to the inner wall of the upper sliding column 4 with two elastic rods 30. Each magnetic plate 29 has a groove 31 at its upper end and a push plate 32 that cooperates with the groove 31 is fixedly installed at its lower end. The magnetic repulsion force between the magnetic strip 26 and the magnetic plate 29 is greater than the elastic force of the four elastic rods 30. When the magnetic rod 17 slides towards the column 1, the magnetic plate 19 is subjected to the magnetic repulsion force of the magnetic rod 17, which will overcome the elastic force of the second spring 46 and drive the fixed plate 20 to slide upwards onto the inner wall of the other side of the column 4. Through the cooperation of the pawl 21 and the ratchet 23, the ratchet 23 and the screw 24 will be driven to rotate at a certain angle. Through the cooperation of the screw 24 and the limiting ring 25, the limiting ring 25 and the magnetic strips 26 on both sides will be driven to move upwards a certain distance. When the magnetic strip 26 moves upwards, the corresponding magnetic plate 29 will no longer be subjected to the magnetic repulsion force of the magnetic strip 26 and will be pulled back by the elastic force of the elastic rod 30. The magnetic plate 29 will no longer be subjected to the limiting strip. 28 is positioned to limit the movement. The third spring 27 will push the connector 5 upward, increasing the overall height of the column 1 to compensate for the height loss due to settlement. Simultaneously, after rising a certain distance, the magnetic strip 26 will align with the magnetic plate 29 above the original magnetic plate 29, causing the corresponding magnetic plate 29 to extend. Then, the limiting strip 28 will press against the upper-level magnetic plate 29. After being pressed against by the limiting strip 28, the upper-level magnetic plate 29 will continue to extend. At the same time, its end push plate 32 will move to the end of the groove 31 of the next-level magnetic plate 29, causing the next-level magnetic plate 29 to extend as well. At this point, the upward movement of the limiting strip 28 will not affect the extension of the next-level magnetic plate 29. (See attached diagram.) Figure 12As shown, the magnetic plate 29 that is finally aligned with the magnetic strip 26 will extend fully, while the next level magnetic plate 29 will extend halfway. The limiting strip 28 is limited by the upper and lower magnetic plates 29, preventing the connector 5 from sliding up and down. After the corresponding column 1 is extended, the additional stress on the support due to the different settlement amplitudes of each column 1 can be reduced. When the height of another column 1 is lower, the corresponding balance ball 12 will roll towards the corresponding column 1, repeating the above process of raising the connector 5. When the balance ball 12 is reset, it will no longer push the slider 14. The elastic force of the first spring 16 will push the slider 14 and the magnetic rod 17 to reset. The magnetic sheet 19 will no longer be subject to the magnetic repulsion force of the magnetic rod 17 and will be pushed to reset by the elastic force of the second spring 46, and drive the fixing plate 20 and the pawl 21 to reset. When the pawl 21 is reset, it will be limited by the ratchet 23 to rotate. When the magnetic sheet 19 is reset, the pawl 21 will be pushed to reset by the elastic force of the torsion spring 22 and engage with the next tooth of the ratchet 23.

[0033] In one embodiment, the photovoltaic support column 1 adjustment mechanism further includes a pneumatic buffer mechanism. The pneumatic buffer mechanism includes a funnel-shaped rubber ring 38 located at the bottom of the lower column 3, a sealing plate 39 for controlling the opening and closing of the rubber ring 38, and a push rod 48 connected to the sealing plate 39 via a connecting rope 41. The push rod 48 is located on the handle 7. The photovoltaic support column 1 adjustment mechanism also includes a height adjustment mechanism. The height adjustment mechanism includes a fixing rod 33 and a collar 34 fixed inside the upper sliding column 4, a steel wire 35 connected to the corresponding collar 34, and a winding shaft 47 rotatably located on the lower column 3 for winding and unwinding the steel wire 35 to adjust the height of the upper sliding column 4.

[0034] Each upper sliding column 4 has two fixed rods 33 fixedly installed inside, and each fixed rod 33 has a collar 34 slidably installed on it. A steel wire 35 is fixedly connected between every two corresponding collars 34. Each lower column cylinder 3 has a rotatably mounted winding spool 47 for winding the steel wire 35. Each winding spool 47 is provided with a spiral groove 36 for limiting the movement of the steel wire 35. When adjusting the height of the column 1, the winding and unwinding of the steel wire 35 can be completed by rotating the winding spool 47. When the winding spool 47 winds the steel wire 35 to one end, the other end is correspondingly unwound. The length of the steel wire 35 remains constant, and the height of the upper sliding column 4 can be accurately adjusted during winding and unwinding. Simultaneously, the collar 34 can slide correspondingly on the fixed rod 33 to prevent the steel wire from slipping. The phenomenon of entanglement occurs due to changes in the winding angle of the thread 35. A sealing gasket 37 is fixedly installed at the lower end of each upper sliding column 4. Several rubber rings 38 are provided at the bottom of each lower column cylinder 3. Each rubber ring 38 is funnel-shaped, with the small opening of the funnel facing inwards towards the lower column cylinder 3. Several sealing plates 39 are slidably installed inside each lower column cylinder 3 to push the rubber rings 38 to close. Each sealing plate 39 corresponds one-to-one with the rubber ring 38. A fourth spring 40 is fixedly installed on the inner wall of the bottom of each lower column cylinder 3. The lower ends of the several sealing plates 39 inside each lower column cylinder 3 are all fixedly connected to their corresponding fourth springs 40. A push rod 48 is slidably installed on each handle 7. A connecting rope 41 is fixedly installed at one end of each push rod 48. The lower end of each connecting rope 41 is fixedly connected to... When adjusting the height of the column 1 by rotating the handle 7 on the corresponding sealing plate 39, the push rod 48 is compressed into the handle 7. The push rod 48 pulls one end of the connecting rope 41, and the other end of the connecting rope 41 drives the sealing plate 39 to rise, stretching the fourth spring 40. After the sealing plate 39 no longer limits the rubber ring 38, the elasticity of the rubber ring 38 restores it to a funnel shape, allowing air to pass through the middle hole of the rubber ring 38. The lower column cylinder 3 is no longer sealed. At this time, the upper sliding column 4 slides downward rapidly under the action of gravity. Atmospheric pressure pushes the small end of the rubber ring 38 to move outward rapidly, making the rubber ring 38 re-sealed. The air in the lower column cylinder 3 cannot be discharged, and atmospheric pressure prevents the upper sliding column 4 from sliding downward, preventing the upper sliding column 4 from suddenly falling and causing the lower column to collapse when adjusting the height of the column 1. When the cylinder 3 is subjected to excessive impact, and the height of the column 1 is being adjusted, keep the push rod 48 pressed into the handle 7. Then, first rotate the winding shaft 47 to make the upper sliding column 4 slide upward. The rubber ring 38 will return to its funnel shape, allowing air to enter the lower cylinder 3. Then, slowly rotate the winding shaft 47 to move the upper sliding column 4 up and down, so that the gas discharged from the lower cylinder 3 is discharged through the small opening of the rubber ring 38. The rubber ring 38 does not deform and does not obstruct the up and down sliding of the upper sliding column 4, allowing the height of the column 1 to be adjusted. After adjustment, when the handle 7 is rotated to the vertical position, release the push rod 48. The elastic force of the fourth spring 40 pulls the sealing plate 39 downward to reset. The sealing plate 39 keeps the rubber ring 38 in a closed state again, preventing air from escaping from the lower cylinder 3 and preventing external air from entering.In addition to the clamping plate 6 fixing the upper sliding column 4, atmospheric pressure also prevents the upper sliding column 4 from sliding, further locking the height of the column 1.

[0035] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A photovoltaic racking post adjustment mechanism, characterized by, The application relates to a height-adjustable column, which comprises: a plurality of height-adjustable columns (1), each of which comprises a lower column cylinder (3) and an upper sliding column (4) slidingly connected in the lower column cylinder (3); a connecting piece (5) arranged at the upper end of the upper sliding column (4); a locking mechanism arranged in the lower column cylinder (3) and used for locking or releasing the sliding of the upper sliding column (4); and a balance detection device arranged between the plurality of columns (1), wherein the balance detection device comprises at least one balance beam, the balance beam is internally provided with a balance ball (12) capable of rolling and an arc-shaped groove (13) used for limiting the position of the balance ball (12), and the bottom inner wall of the balance beam is provided with an inclined surface inclined to the arc-shaped groove (13).

2. The photovoltaic racking post adjustment mechanism of claim 1, wherein, The balance detection device comprises two transverse beams (9) and a vertical beam (10), which form a H-shaped structure. The balance ball (12) and the arc-shaped groove (13) are arranged in each of the transverse beams (9) and the vertical beam (10).

3. A photovoltaic racking post adjustment mechanism according to claim 1 or 2, characterized in that, The locking mechanism comprises two clamping plates (6) symmetrically arranged in the lower column cylinder (3), the clamping plates (6) can relatively move to clamp or release the upper sliding column (4); the locking mechanism further comprises a handle (7) threadedly connected with the lower column cylinder (3), and one of the clamping plates (6) is rotationally connected to the end of the handle (7).

4. The photovoltaic racking post adjustment mechanism of claim 3, wherein, The locking mechanism further comprises a wedge-shaped plate (42) arranged on the two sides of the clamping plate (6) and a conical plate (43) matched with the inclined surface of the wedge-shaped plate (42), so that the handle (7) drives the two clamping plates (6) to synchronously and reversely move when the handle (7) rotates.

5. The photovoltaic racking post adjustment mechanism of claim 1, wherein, The height-adjustable column further comprises a height compensation mechanism, which comprises: a third spring (27) arranged between the connecting piece (5) and the upper sliding column (4); a limiting unit arranged in the upper sliding column (4) and capable of extending and retracting, which is used for limiting the displacement of the connecting piece (5); and a driving unit used for controlling the limiting unit to release the connecting piece (5) when a height deviation is detected, so that the third spring (27) pushes the connecting piece (5) to ascend to compensate the height.

6. The photovoltaic racking post adjustment mechanism of claim 5, wherein, The limiting unit comprises a plurality of magnetic plates (29) transversely slidingly arranged on the inner wall of the upper sliding column (4), and the magnetic plates (29) are connected with the upper sliding column (4) through elastic rods (30); the driving unit comprises a magnetic strip (26) vertically movable, the magnetic strip (26) is matched with the magnetic plates (29) in magnetic repulsion, and is used for controlling the extension and retraction of the magnetic plates (29).

7. The photovoltaic racking post adjustment mechanism of claim 6, wherein, The driving unit further comprises: a magnetic sheet (19) transversely slidingly arranged in the upper sliding column (4) and connected with the magnetic strip (26); a ratchet mechanism comprising a pawl (21) and a ratchet wheel (23), which is used for converting the transverse movement of the magnetic sheet (19) into the vertical movement of the magnetic strip (26).

8. The photovoltaic racking post adjustment mechanism of claim 7, wherein, The balance detection device is internally provided with a slidable magnetic rod (17), the magnetic rod (17) is matched with the magnetic sheet (19) in magnetic repulsion, and is used for driving the magnetic sheet (19) to move when a height deviation is detected.

9. The photovoltaic mounting post adjustment mechanism of claim 4, wherein, The height-adjustable column further comprises a gas pressure buffering mechanism, which comprises: A funnel-shaped rubber ring (38) is arranged at the bottom of the lower cylinder (3); A sealing plate (39) is arranged for controlling the opening and closing of the rubber ring (38); A push rod (48) is connected with the sealing plate (39) through a connecting wire (41), and the push rod (48) is arranged on the handle (7).

10. The photovoltaic racking post adjustment mechanism of claim 1, wherein, Further comprising a height adjusting mechanism, the height adjusting mechanism comprises: A fixed rod (33) and a sleeve ring (34) fixed in the upper sliding column (4); A steel wire (35) connected with the sleeve ring (34); And a winding shaft (47) arranged on the lower cylinder (3) is used for winding and unwinding the steel wire (35) to adjust the height of the upper sliding column (4).

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