Rapid adjusting device of photovoltaic support

Abstract

The utility model discloses a rapid adjusting device of a photovoltaic support, which comprises a photovoltaic panel, a base, a telescopic arm and a connecting arm, and is characterized in that the photovoltaic panel is hinged with the base; one end of the telescopic arm is hinged to the photovoltaic panel, and the other end of the telescopic arm is inserted into the connecting arm hinged to the base; a clamping pin assembly and a pulling assembly are installed at the two ends of the telescopic arm. The clamping pin assembly comprises a clamping pin base, a clamping pin support and a torsional spring. A rotating rod is arranged on the clamping pin seat, the clamping pin support is rotatably connected to the rotating rod and comprises a clamping pin and a pulling rod, the clamping pin is rotatably connected with the clamping pin support, a plurality of adjusting holes are formed in the side wall of the connecting arm, and the clamping pin is connected with one adjusting hole in an inserted mode; the rotating rod is sleeved with the torsional spring, one pin of the torsional spring abuts against the abutting rod, the other pin of the torsional spring abuts against the pulling rod, the pulling assembly comprises a connecting rod and a connecting line, one end of the connecting rod is connected with the pulling rod, and the other end of the connecting rod is connected with the connecting line. And the working efficiency of adjusting the photovoltaic panel is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic mounting systems, and in particular to a rapid adjustment device for photovoltaic mounting systems. Background Technology

[0002] A photovoltaic (PV) support structure is a metal structural support designed for placing, installing, and fixing solar panels in a solar power generation system. The PV support structure supports the main power generation body of the PV power station and serves as the skeleton of the PV power station, making it an important component of the PV power generation system.

[0003] As attached Figure 9 and attached Figure 10 As shown, when the angle of the photovoltaic panel 1 needs to be adjusted, it is often necessary to loosen and remove the bolts 31 on the left and right tension rods 3, and then move the photovoltaic panel 1 along the tension rods 3 toward the base 2. After the photovoltaic panel 1 is adjusted to a certain angle, the bolts 31 are passed through the tension rods 3 and the nuts are screwed into the bolts to fix the position of the photovoltaic panel 1.

[0004] When the sun shines directly on the surface of the photovoltaic panel, the power of the photovoltaic panel 1 reaches its maximum. Therefore, the photovoltaic panel 1 often needs to be adjusted frequently to adapt to the incident angle of sunlight at different times. However, in actual use, when it is necessary to adjust the angle of the photovoltaic panel 1, it is necessary to tighten or loosen the bolts 31 to adjust or fix the photovoltaic panel 1. The adjustment takes a long time and the adjustment process is cumbersome. At the same time, the tension rods 3 on the left and right sides cannot be adjusted at the same time, which reduces the working efficiency of adjusting the photovoltaic panel 1. Utility Model Content

[0005] To adapt to direct sunlight at different angles, photovoltaic panels need to be quickly adjusted, and a quick adjustment device for photovoltaic brackets is provided.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A quick-adjustment device for a photovoltaic (PV) bracket includes a PV panel, a base, a telescopic arm, and a connecting arm. The PV panel is hinged to the base. One end of the telescopic arm is hinged to the PV panel, and the other end of the telescopic arm is inserted into the connecting arm. The end of the connecting arm away from the telescopic arm is hinged to the base. A locking pin assembly is installed in the end of the telescopic arm inserted into the connecting arm, and a pulling assembly is installed in the end of the telescopic arm away from the connecting arm. The locking pin assembly includes a locking pin seat, a locking pin bracket, and a torsion spring. The locking pin seat is provided with a rotating rod perpendicular to the telescopic arm and the telescopic arm's extension / retraction direction. The locking pin bracket is rotatably connected to the rotating rod, and locking pins are respectively installed at both ends of the locking pin bracket. The pull rod, the locking pin, and the locking pin bracket are rotatably connected with the rotation axis parallel to the rotating rod. The side wall of the connecting arm has multiple adjustment holes along the extension and retraction direction of the connecting arm and the telescopic arm. The locking pin is inserted into one of the adjustment holes. The locking pin seat is located on the side of the rotating rod opposite to the locking pin and a pressure rod is also installed. A torsion spring is sleeved on the rotating rod. One pin of the torsion spring abuts against the side of the pressure rod facing the locking pin seat, and the other pin of the torsion spring abuts against the side of the pull rod opposite to the locking pin. The pull assembly includes a connecting rod located inside the telescopic arm and a connecting line located outside. One end of the connecting rod is connected to the pull rod, and the other end of the connecting rod is connected to the connecting line.

[0008] By adopting the above technical solution, when the angle of the photovoltaic panel needs to be adjusted, the connecting rod is moved outward by pulling the connecting wire. The end of the connecting rod away from the connecting wire is connected to the pulling rod, which in turn moves the pulling rod in the direction of the connecting wire. The torsion spring is compressed by the pulling rod. Since the locking pin bracket is sleeved on the rotating rod, the end of the locking pin bracket near the locking pin will move downward synchronously, and the locking pin will move downward inward towards the telescopic arm, disengaging from the adjustment hole. When the locking pin reaches the predetermined adjustment position, the locking pin is aligned with the adjustment hole. The connecting wire is then released, releasing the tension of the connecting wire on the connecting rod. The force of the torsion spring will cause the pulling rod to move in the direction of the connecting arm, and the locking pin bracket will simultaneously move the locking pin upward. The locking pin will then pop out from the adjustment hole, achieving automatic reset of the locking pin bracket. The adjustment process is relatively simple, improving the working efficiency of adjusting the photovoltaic panel. It can adapt to different incident angles of sunlight, making the angle between the photovoltaic panel and the incident sunlight the optimal angle.

[0009] Optionally, the side wall of the connecting arm is provided with a sliding groove, the groove direction is consistent with the arrangement direction of the adjustment holes, and a limit post is installed in the end of the telescopic arm facing the connecting arm, the limit post being slidably connected to the sliding groove.

[0010] By adopting the above technical solution, when adjusting the angle of the photovoltaic panel, the sliding connection between the slide groove and the limiting post reduces the shaking and offset caused by the sliding of the telescopic arm within the connecting arm, and improves the stability of the telescopic arm sliding within the connecting arm.

[0011] Optionally, a positioning element is installed inside the end of the telescopic arm facing the connecting arm. The positioning element is located on the side of the locking pin bracket facing the connecting arm, and the distance from the rotating shaft to the pulling rod is greater than the distance from the positioning element to the pulling rod.

[0012] By adopting the above technical solution, if the locking pin moves too far downward when the locking pin bracket moves back, the locking pin bracket will not be able to reset. Therefore, a positioning component is added. When the locking pin bracket moves too far downward, the positioning component will abut against the locking pin bracket to prevent the locking pin bracket from exceeding the predetermined position. This avoids the phenomenon that the locking pin bracket cannot reset when it moves back beyond its stroke, thus improving the stability of the photovoltaic bracket and reducing the frequency of maintenance.

[0013] Optionally, the pulling assembly includes a hinge plate and a hinge shaft. One end of the hinge plate is located inside the telescopic arm and is rotatably connected to the connecting rod, while the other end of the hinge plate is located outside the telescopic arm and is fixedly connected to the connecting line. The hinge shaft is rotatably connected to the hinge plate, and the tension direction of the hinge shaft is perpendicular to that of the connecting line.

[0014] By adopting the above technical solution, the end of the telescopic arm away from the connecting arm is located on the back side of the photovoltaic panel. When the connecting line pulls the hinge plate, the tension parallel to the telescopic arm direction is converted into a tension perpendicular to the telescopic arm direction through the setting of the hinge shaft, which facilitates the pulling of the hinge plate.

[0015] Optionally, the pulling assembly includes a retaining ring, with one end of the hinge shaft passing through the hinge plate and the telescopic arm in sequence. A slot is opened on the end of the hinge shaft located outside the telescopic arm, and the retaining ring is inserted into the slot. The outer circumferential diameter of the retaining ring is larger than the outer circumferential diameter of the end of the hinge shaft located outside the telescopic arm.

[0016] By adopting the above technical solution, the structure in which the retaining ring and the slot are connected allows for easy assembly and disassembly of the hinge shaft when maintenance of the hinge shaft and hinge plate is required, simply by pulling the retaining ring out of the slot.

[0017] Optionally, there are two connecting arms, two telescopic arms, and two connecting lines, with each connecting line fixedly connected to one of the two connecting rods.

[0018] By adopting the above technical solution, the two connecting lines can simultaneously control the rotation of the two hinge plates, enabling the two telescopic arms to be adjusted at the same time without having to adjust them sequentially, thus improving the efficiency of photovoltaic panel angle adjustment.

[0019] Optionally, the pull assembly also includes a handle, with the ends of the two connecting lines away from the hinge piece being fixedly connected to the handle.

[0020] By adopting the above technical solution, when it is necessary to adjust the telescopic arms on both sides, only the handle needs to be pressed. The handle can simultaneously drive the two connecting lines to pull the two hinge plates without having to pull the two connecting lines, making it easier to pull the connecting lines and improving the efficiency of adjusting the two telescopic arms at the same time.

[0021] Optionally, the pulling assembly further includes a fixing plate, one end of which is fixedly connected to the hinge piece, and the other end of which abuts against the connecting rod.

[0022] By adopting the above technical solution, the height of the connecting rod is raised so that both sides of the connecting rod are at the same height, reducing the friction generated when the connecting rod contacts the telescopic arm during the pulling process. This makes it more time-saving and labor-saving to pull the hinge plate with the connecting line, thus improving the efficiency of the adjustment work.

[0023] Optionally, the locking pin bracket bends upward at one end near the locking pin, and the extended end is flat.

[0024] By adopting the above technical solution, the contact area between the locking pin bracket and the inner wall of the telescopic arm is increased, thereby improving the stability of the locking pin bracket and facilitating the control of the pop-out and retraction of the locking pin.

[0025] In summary, this application has at least the following beneficial effects:

[0026] 1. This photovoltaic bracket can adjust its angle according to changes in the sun's position and geographical location. Pressing the handle moves two connecting lines simultaneously, controlling the movement of two telescopic arms, which allows for rapid adjustment of the photovoltaic panel's angle. This enables the photovoltaic panel to adapt to the angle of sunlight, thus achieving the optimal angle between the solar photovoltaic panel and the incident sunlight, increasing the power generation of the solar photovoltaic panel and ensuring stable power generation. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of a rapid adjustment device for a photovoltaic bracket. Figure 1 ;

[0028] Figure 2 A schematic diagram of the structure of a rapid adjustment device for a photovoltaic bracket. Figure 2 ;

[0029] Figure 3 An explosion diagram of a rapid adjustment device for a photovoltaic bracket. Figure 1 ;

[0030] Figure 4 This is a cross-sectional view of the latch assembly;

[0031] Figure 5 Schematic diagram of the telescopic arm Figure 1 ;

[0032] Figure 6 This is a structural diagram of the pull component;

[0033] Figure 7 An explosion diagram of a rapid adjustment device for a photovoltaic bracket. Figure 2 ;

[0034] Figure 8 A schematic diagram of the structure of a rapid adjustment device for a photovoltaic bracket. Figure 3 ;

[0035] Figure 9 This is a schematic diagram of a photovoltaic support structure based on existing technology.

[0036] Figure 10 for Figure 9 A magnified view of a portion at point A.

[0037] Reference numerals: 1. Photovoltaic panel; 2. Base; 21. Fixing frame; 22. First square tube; 23. Second square tube; 24. Support base; 3. Locking pin assembly; 31. Locking pin seat; 311. Base plate; 312. Positioning plate; 313. Pressing rod; 314. Rotating rod; 32. Locking pin bracket; 321. Pulling rod; 33. Pull buckle; 331. Mounting part; 332. Pull ring part; 34. Torsion spring; 35. Locking pin; 4. Pulling assembly; 41. Connecting rod; 42. Hinge piece; 43. Fixing plate; 44. Pin; 45. Hinge shaft; 451. Slot; 46. Snap ring; 47. Cable bundle tube; 471. Cable bundle hole; 48. Handle; 49. Connecting wire; 5. Connecting arm; 51. Adjustment hole; 52. Slide groove; 6. Telescopic arm; 61. Positioning component; 62. Limiting post. Detailed Implementation

[0038] The following section provides a more detailed description, in conjunction with the accompanying diagrams:

[0039] As attached Figure 1 and attached Figure 2 As shown, a quick adjustment device for a photovoltaic bracket includes a photovoltaic panel 1, a base 2, a locking pin assembly 3, a pulling assembly 4, a connecting arm 5, and a telescopic arm 6.

[0040] The base 2 includes two relatively parallel fixing frames 21. A first square tube 22 and a second square tube 23 are provided between the two fixing frames 21. The first square tube 22 and the second square tube 23 are relatively parallel and perpendicular to the two fixing frames 21 respectively. The two ends of the first square tube 22 and the second square tube 23 are fixedly connected to the two fixing frames 21 by bolts.

[0041] The ends of the two fixing frames 21 away from the second square tube 23 are hinged to the bottom end of the photovoltaic panel 1. Support seats 24 are installed on the opposite sides of the two fixing frames 21, and the two support seats 24 are located on the ends of the two fixing frames 21 away from the first square tube 22.

[0042] There are two telescopic arms 6 and two connecting arms 5. One end of each telescopic arm 6 is hinged to the top of the photovoltaic panel 1. The other end of each telescopic arm 6 is inserted into the two connecting arms 5 respectively. The ends of the two connecting arms 5 away from the telescopic arms 6 are hinged to the two support seats 24 respectively.

[0043] As attached Figure 3 and attached Figure 4 As shown, the locking pin assembly 3 is located inside the end of the telescopic arm 6 facing the connecting arm 5. The locking pin assembly 3 includes a locking pin seat 31, a locking pin bracket 32, and a pull buckle 33.

[0044] The locking pin seat 31 includes a base plate 311 and two relatively parallel positioning plates 312. The ends of the two positioning plates 312 facing the base plate 311 are respectively fixedly connected to the two ends of the base plate 311. The side of the base plate 311 facing away from the positioning plates 312 is fixedly connected to the inner wall of the telescopic arm 6. Between the two positioning plates 312, there is a pressing rod 313 and a rotating rod 314 perpendicular to the telescopic arm 5 and the telescopic arm 6. The pressing rod 313 and the rotating rod 314 are both located on the side of the two positioning plates 312 facing away from the base plate 311, and the pressing rod 313 and the rotating rod 314 are relatively parallel.

[0045] The locking pin bracket 32 ​​is located inside the locking pin seat 31. One end of the locking pin bracket 32 ​​is sleeved on the rotating rod 314 and rotatably connected to the rotating rod 314. A pulling rod 321 is installed on the locking pin bracket 32. The pulling rod 321 is located on the side of the rotating rod 314 facing the base plate 311, and the pulling rod 321 is relatively parallel to the rotating rod 314.

[0046] A locking pin 35 is installed on one end of the locking pin bracket 32 ​​facing the connecting arm 5. The locking pin 35 is rotatably connected to the locking pin bracket 32 ​​and the rotating shaft 351 is parallel to the rotating rod 314. One end of the locking pin 35 passes through the inner wall of the telescopic arm 6 to the outside of the telescopic arm 6, and the end of the locking pin 35 located outside the telescopic arm 6 has a smooth transition.

[0047] The end of the locking pin bracket 32 ​​near the locking pin 35 bends upward and extends, and the extended end is flat, which increases the contact area between the locking pin bracket 32 ​​and the inner wall of the telescopic arm 6, thereby improving the stability of the locking pin bracket 32.

[0048] The buckle 33 is located above the base plate 311. The buckle 33 includes a mounting part 331 and a pull ring part 332. The mounting part 331 is fixedly connected to the pulling assembly 4. The pull ring part 332 is located between the locking pin brackets 32 and is sleeved on the pulling rod 321.

[0049] The locking pin assembly 3 also includes a torsion spring 34. The torsion spring 34 is sleeved on the rotating rod 314 and is located between the locking pin brackets 32. One pin of the torsion spring 34 abuts against the side of the pressing rod 313 facing the base plate 311, and the other pin of the torsion spring 34 abuts against the side of the pulling rod 321 facing away from the locking pin 35.

[0050] As attached Figure 4 and attached Figure 5 As shown, the pulling assembly 4 includes a connecting rod 41 and a hinge plate 42. The connecting rod 41 is located inside the telescopic arm 6. The connecting rod 41 is long and narrow. One end of the connecting rod 41 is fixedly connected to the pull buckle 33, and the other end of the connecting rod 41 is located at the opening of the telescopic arm 6.

[0051] As attached Figure 5 and attached Figure 6 As shown, the hinge plate 42 abuts against the inner wall of the telescopic arm 6, with one end of the hinge plate 42 located inside the telescopic arm 6 and the other end located outside the telescopic arm 6. A fixing plate 43 is installed on the end of the hinge plate 42 located inside the telescopic arm 6. One end of the fixing plate 43 is fixedly connected to the hinge plate 42, and the other end of the fixing plate 43 abuts against the connecting rod 41. The fixing plate 43 is perpendicular to the connecting rod 41. The fixing plate 43 raises the height of the connecting rod 41, so that both sides of the connecting rod 41 are at the same height, reducing the friction generated when the connecting rod 41 contacts the telescopic arm 6 during the pulling process.

[0052] A pin 44 is installed on one end of the hinge plate 42 inside the telescopic arm 6. The pin 44 passes through the end of the connecting rod 41 and is rotatably connected to the hinge plate 42. The pin 44 is located on the side of the fixing plate 43 facing the opening.

[0053] A hinge shaft 45 is also installed on one end of the hinge plate 42 located inside the telescopic arm 6. One end of the hinge shaft 45 is located inside the telescopic arm 6, and the other end of the hinge shaft 45 passes through the hinge plate 42 and the inner wall of the telescopic arm 6 to the outside of the telescopic arm 6. The outer diameter of the end of the hinge shaft 45 located inside the telescopic arm 6 is larger than the outer diameter of the end of the hinge shaft 45 located outside the telescopic arm 6.

[0054] The pulling assembly 4 also includes a retaining ring 46, which is a circular ring with an opening. The hinge shaft 45 has a slot 451 on the side wall of the outer end of the telescopic arm 6. The retaining ring 46 is inserted into the slot 451 from the opening and engages with the slot 451. The outer diameter of the retaining ring 46 is larger than the outer diameter of the outer end of the hinge shaft 45 on the telescopic arm 6. When repairing the hinge shaft 45 and the hinge plate 42, it is only necessary to pull the retaining ring 46 out of the slot 451, which facilitates the assembly and disassembly of the hinge shaft 45.

[0055] A cable bundle 47 is installed on one end of the hinge plate 42 outside the telescopic arm 6. The cable bundle 47 is annular and has multiple cable bundle holes 471 on its outer peripheral sidewall.

[0056] As attached Figure 2 and attached Figure 5 As shown, the pulling assembly 4 also includes a connecting wire 49 and a handle 48. There are two connecting wires 49. One end of each connecting wire 49 passes through a wire harness hole 471 and is fixedly connected to two wire harness tubes 47. The connecting wires 49 can simultaneously control the rotation of the two hinge pieces 42, enabling the two telescopic arms 6 to be adjusted simultaneously within the two connecting arms 5, thus improving the efficiency of angle adjustment.

[0057] The handle 48 is located on the back side of the top of the photovoltaic panel 1. The ends of the two connecting wires 49 away from the cable bundle 47 are fixedly connected to the handle 48. The two connecting wires 49 can be pulled simultaneously by the handle 48 to pull the two hinge pieces 42, making it easier to pull the connecting wires 49 and improving the efficiency of adjusting the angle.

[0058] As attached Figure 4 and attached Figure 7 As shown, the telescopic arm 6 is inserted into one end of the connecting arm 5 and is equipped with a positioning component 61 and a limiting post 62. The positioning component 61 is located on the side of the locking pin bracket 32 ​​facing the connecting arm 5, and the distance from the rotating shaft 351 to the pulling rod 321 is greater than the distance from the positioning component 61 to the pulling rod 321. This avoids the phenomenon that the locking pin bracket 32 ​​cannot be reset due to exceeding its stroke when it retracts, thus improving the stability of the photovoltaic bracket and reducing the frequency of maintenance.

[0059] As attached Figure 7 and attached Figure 8 As shown, one end of the limiting post 62 is located inside the telescopic arm 6, and the other end of the limiting post 62 is located outside the telescopic arm 6. The end of the limiting post 62 located outside the telescopic arm 6 is cylindrical.

[0060] Multiple adjustment holes 51 are provided on the side wall of the connecting arm 5 along the telescopic direction of the connecting arm 5 and the telescopic arm 6. The end of the locking pin 35 that passes through the telescopic arm 6 and extends outside the telescopic arm 6 is inserted into one of the adjustment holes 51. The locking pin 35 is engaged with one of the adjustment holes 51. The locking pin 35 can be adjusted in multiple adjustment holes 51 to increase the range in which the telescopic arm 6 can be inserted into the connecting arm 5, thereby increasing the range of adjustment angle.

[0061] A groove 52 is provided on the outer wall of the connecting arm 5. The groove direction of the groove 52 is consistent with the arrangement direction of the adjustment hole 51. The side wall where the groove 52 is located is perpendicular to the side wall where the adjustment hole 51 is located. The groove 52 is slidably connected to the end of the limiting post 62 located outside the telescopic arm 6, which reduces the shaking and displacement caused by the telescopic arm 6 sliding in the connecting arm 5 and improves the stability of the telescopic arm 6 sliding in the connecting arm 5.

[0062] The principle of this embodiment:

[0063] When the angle of the photovoltaic panel 1 needs to be adjusted, press the handle 48. The handle 48 drives the two connecting wires 49 to pull the cable bundle 47. The cable bundle 47 drives the hinge piece 42 to move toward the photovoltaic panel 1. The hinge piece 42 is connected to the connecting rod 41 through the pin 44. The connecting rod 41 will move toward the photovoltaic panel 1 synchronously. The end of the connecting rod 41 away from the pulling component 4 is fixedly connected to the pull buckle 33. The pull buckle 33 will drive the pulling rod 321 to move toward the connecting rod 41 synchronously. Since the rotating rod 314 is rotatably connected to the locking bracket 32, the rotating rod 314 is located on the side of the pulling rod 321 facing away from the base plate 311. Therefore, when the pulling rod 321 is pulled toward the connecting rod 41, it will drive the locking bracket 32 ​​to move toward the locking seat 31. The locking pin 35 moves from the outside of the telescopic arm 6 toward the inside of the telescopic arm 6, so that the locking pin 35 is disengaged from the adjustment hole 51.

[0064] After the locking pin 35 disengages from the adjustment hole 51, hold the handle 48 and pull the photovoltaic panel 1 toward the base 2. After the photovoltaic panel 1 reaches the predetermined position, align the locking pin 35 with the adjustment hole 51, and then release the handle 48. Due to the force of the torsion spring 34, the pin that abuts against the pull rod 321 will drive the pull rod 321 to move toward the connecting arm 5, thereby driving the locking pin bracket 32 ​​to move toward the direction away from the base plate 311, so that the locking pin 35 pops out of the adjustment hole 51 and engages with the adjustment hole 51, thereby fixing the position of the telescopic arm 6 inside the connecting arm 5.

[0065] In summary: When the photovoltaic bracket needs to be able to adjust its angle according to changes in the sun's position and geographical location, pressing the handle 48 will cause the two connecting lines 49 to move simultaneously, controlling the two telescopic arms 6 to move within the connecting arm 5. After reaching the predetermined position, releasing the handle 48 will cause the torsion spring 34 to cause the locking bracket 32 ​​to pop out the locking pin 35, thereby fixing the position of the telescopic arm 6. The adjustment time is short and the adjustment process is simple. At the same time, the two telescopic arms 6 can be adjusted simultaneously, thereby improving the working efficiency of adjusting the photovoltaic panel 1.

[0066] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A quick adjustment device for a photovoltaic bracket, comprising a photovoltaic panel (1), a base (2), a telescopic arm (6), and a connecting arm (5), wherein the photovoltaic panel (1) is hinged to the base (2); one end of the telescopic arm (6) is hinged to the photovoltaic panel (1), the other end of the telescopic arm (6) is inserted into the connecting arm (5), and the end of the connecting arm (5) away from the telescopic arm (6) is hinged to the base (2); characterized in that, A locking pin assembly (3) is installed inside one end of the telescopic arm (6) inserted into the connecting arm (5), and a pulling assembly (4) is installed inside the other end of the telescopic arm (6) away from the connecting arm (5). The locking pin assembly (3) includes a locking pin seat (31), a locking pin bracket (32), and a torsion spring (34). A rotating rod (314) perpendicular to the telescopic direction of the connecting arm (5) and the telescopic arm (6) is provided on the locking pin seat (31). The locking pin bracket (32) is rotatably connected to the rotating rod (314). A locking pin (35) and a pulling rod (321) are respectively installed at both ends of the locking pin bracket (32). The locking pin (35) is rotatably connected to the locking pin bracket (32), and the rotating shaft (351) is parallel to the rotating rod (314). The side wall of the connecting arm (5) extends and retracts along the connecting arm (5) and the telescopic arm (6). Multiple adjustment holes (51) are opened in the direction, and the locking pin (35) is inserted into one of the adjustment holes (51); the locking pin seat (31) is located on the side of the rotating rod (314) facing away from the locking pin (35) and a pressing rod (313) is also installed. The torsion spring (34) is sleeved on the rotating rod (314). One pin of the torsion spring (34) abuts against the side of the pressing rod (313) facing the locking pin seat (31), and the other pin of the torsion spring (34) abuts against the side of the pulling rod (321) facing away from the locking pin (35). The pulling assembly (4) includes a connecting rod (41) located inside the telescopic arm (6) and a connecting line (49) located outside. One end of the connecting rod (41) is connected to the pulling rod (321), and the other end of the connecting rod (41) is connected to the connecting line (49).

2. The rapid adjustment device for a photovoltaic bracket according to claim 1, characterized in that, The side wall of the connecting arm (5) has a groove (52), and the groove direction of the groove (52) is consistent with the arrangement direction of the adjustment hole (51). A limit post (62) is installed on one end of the telescopic arm (6) facing the connecting arm (5), and the limit post (62) is slidably connected to the groove (52).

3. The rapid adjustment device for a photovoltaic bracket according to claim 1, characterized in that, The telescopic arm (6) has a positioning element (61) installed at one end facing the connecting arm (5). The positioning element (61) is located on the side of the latch bracket (32) facing the connecting arm (5), and the distance from the rotating shaft (351) to the pull rod (321) is greater than the distance from the positioning element (61) to the pull rod (321).

4. The rapid adjustment device for a photovoltaic bracket according to claim 1, characterized in that, The pulling assembly (4) includes a hinge plate (42) and a hinge shaft (45). One end of the hinge plate (42) is located inside the telescopic arm (6) and is rotatably connected to the connecting rod (41). The other end of the hinge plate (42) is located outside the telescopic arm (6) and is fixedly connected to the connecting line (49). The hinge shaft (45) is rotatably connected to the hinge plate (42), and the tension direction of the hinge shaft (45) and the connecting line (49) is perpendicular to each other.

5. The rapid adjustment device for a photovoltaic bracket according to claim 4, characterized in that, The pulling assembly (4) includes a retaining ring (46), and one end of the hinge shaft (45) passes through the hinge plate (42) and the telescopic arm (6) in sequence. A slot (451) is opened on the end of the hinge shaft (45) located outside the telescopic arm (6). The retaining ring (46) is inserted into the slot (451), and the outer diameter of the retaining ring (46) is greater than the outer diameter of the end of the hinge shaft (45) located outside the telescopic arm (6).

6. The rapid adjustment device for a photovoltaic bracket according to claim 1, characterized in that, The number of connecting arms (5), telescopic arms (6) and connecting lines (49) are all two, and the two connecting lines (49) are fixedly connected to the connecting rod (41) respectively.

7. A quick adjustment device for a photovoltaic bracket according to claim 6, characterized in that, The pull assembly (4) also includes a handle (48), and the ends of the two connecting lines (49) away from the hinge piece (42) are fixedly connected to the handle (48).

8. The rapid adjustment device for a photovoltaic bracket according to claim 1, characterized in that, The pulling assembly (4) also includes a fixing plate (43), one end of which is fixedly connected to the hinge piece (42), and the other end of which abuts against the connecting rod (41).

9. A quick adjustment device for a photovoltaic bracket according to claim 1, characterized in that, The pin bracket (32) extends upward near the pin (35) and the extended end is flat.

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