A mounting bracket for a photovoltaic power generation system

Abstract

The mounting support of the photovoltaic power generation system comprises a fixed frame and a movable frame, the fixed frame comprises a first fixed rod, a second fixed rod and a first connecting rod, the first fixed rod and the second fixed rod are connected through the first connecting rod in the horizontal direction, the movable frame comprises a cross rod and a support rod, the cross rod is arranged in the horizontal direction, the cross rod is parallel to the first connecting rod, a plurality of support rods in the vertical direction are arranged on the bottom of the cross rod along the length direction, a first support column and a second support column are arranged on the top of the cross rod at intervals, one end of a first steel wire rope is connected with the upper end of the first fixed rod, the other end of the first steel wire rope is connected with the upper end of the first support column, one end of a second steel wire rope is connected with the upper end of the second fixed rod, the other end of the second steel wire rope is connected with the upper end of the second support column, and photovoltaic modules are arranged on the first steel wire rope and the second steel wire rope. The purpose of the present application is to provide a net-shaped photovoltaic support system which is convenient to install and can adjust the tension.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic technology, and specifically relates to an installation bracket for a photovoltaic power generation system. Background Technology

[0002] Photovoltaics, short for solar photovoltaic power generation system, is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It can operate independently or be connected to the grid. Solar photovoltaic power generation systems are classified into two types: centralized, such as large-scale ground-mounted photovoltaic power generation systems in Northwest China; and distributed (with >6MW as the dividing line), such as rooftop photovoltaic power generation systems for industrial and commercial buildings and residential rooftop photovoltaic power generation systems. In recent years, China's photovoltaic industry has developed rapidly, with a wide variety of mounting brackets available. However, most are still fixed, and installation is greatly affected by the site conditions. In unfavorable terrain such as gullies, ditches, and hillsides, installation is almost impossible. Summary of the Invention

[0003] Therefore, the present invention aims to solve the problem in the prior art that it is not easy to install in unfavorable terrains such as ravines, ditches, and hillsides.

[0004] Therefore, the technical solution adopted is an installation bracket for a photovoltaic power generation system according to the present invention, comprising: a fixed frame and a movable frame. The fixed frame includes a first fixed rod, a second fixed rod, and a first connecting rod. The first fixed rod and the second fixed rod are arranged vertically at intervals. The length of the first fixed rod is greater than the length of the second fixed rod. The first fixed rod and the second fixed rod are connected by a first connecting rod in a horizontal direction. Several fixed frames are arranged in a row. The movable frame includes a crossbar and a support rod. The crossbar is arranged horizontally and is parallel to the first connecting rod. Several vertical support rods are arranged at the bottom of the crossbar along its length. A first support column and a second support column are arranged at intervals at the top of the crossbar. The length of the first support column is greater than the length of the second support column. One end of a first steel wire rope is connected to the upper end of the first fixed rod, and the other end of the first steel wire rope is connected to the upper end of the first support column. One end of a second steel wire rope is connected to the upper end of the second fixed rod, and the other end of the second steel wire rope is connected to the upper end of the second support column. Photovoltaic modules are arranged on the first steel wire rope and the second steel wire rope.

[0005] Preferably, both the first fixing rod and the second fixing rod have a base plate at their bottom ends, and the base plate is provided with anchor bolts.

[0006] Preferably, a shock-absorbing device is provided at the bottom end of the support rod, the shock-absorbing device comprising: a movable block, a first guide rod, and a slider.

[0007] A movable block is provided below the support rod, and a horizontal groove is provided at the top of the movable block. A first horizontal guide rod is provided in the groove. The two ends of the first guide rod are connected to the inner wall of the groove. The first guide rod passes through the slider, and the slider can reciprocate on the first guide rod. A first spring is provided at both ends of the slider. The first spring is sleeved on the first guide rod. One end of the first spring is connected to the slider, and the other end of the first spring is connected to the inner wall of the groove.

[0008] A vertically oriented fixing tube is provided at the upper end of the slider. One end of the fixing tube is connected to the upper end of the slider. The end of the support rod away from the crossbar is inserted into the other end of the fixing tube. A second spring is provided inside the fixing tube. One end of the second spring is connected to the upper end of the slider, and the other end of the second spring is connected to the lower end of the support rod. A third spring is provided inside the second spring. One end of the third spring is connected to the upper end of the slider, and the other end of the third spring is connected to the lower end of the support rod. The second spring is in a compressed state, and the third spring is in a stretched state.

[0009] Preferably, a connecting plate is provided below the movable block, and a groove is provided at the top of the connecting plate. The movable block is located in the groove. A screw and a second guide rod are respectively provided in the groove. The second guide rod is located above the screw. Both ends of the second guide rod are connected to the inner wall of the groove. The second guide rod passes through the lower end of the movable block, and the movable block can reciprocate left and right along the second guide rod. The screw passes through the lower end of the movable block and is threadedly connected to the movable block. One end of the screw is rotatably connected to the inner wall of the groove, and the other end of the screw passes through the side wall of the groove and is connected to the handle. The screw is rotatably connected to the side wall of the groove.

[0010] Preferably, the connecting plate has several connecting holes at both ends.

[0011] Preferably, it also includes a rainwater collection device, which comprises: a housing, a sector gear, a swing arm, a guide block, and a pull rod.

[0012] An opening is provided on the outer wall of the box. One end of the third wire rope is connected to the crossbar near the support rod, and the other end of the third wire rope extends through the opening into the box.

[0013] A first fixing block is provided on the inner wall of the box, and a first rotating shaft is provided on the first fixing block. One end of the first rotating shaft is rotatably connected to the first fixing block, and a sector gear and a second connecting rod are respectively provided on the other end of the first rotating shaft. The first rotating shaft passes through the center of the sector gear and is fixedly connected to the sector gear. One end of the second connecting rod is perpendicularly connected to the first rotating shaft, and a first roller is provided on the other end of the second connecting rod.

[0014] A second rotating shaft is provided on the inner wall of the housing. The second rotating shaft is on the same horizontal plane and parallel to the first rotating shaft. One end of the second rotating shaft is connected to the output shaft of the motor, and the motor is fixed on the inner wall of the housing. The other end of the second rotating shaft is rotatably connected to one end of the swing rod. The second rotating shaft is perpendicular to the swing rod, and the other end of the swing rod faces downward. A first sector plate and a second sector plate are coaxially arranged on the second rotating shaft. The first sector plate and the second sector plate are radially symmetrical about the second rotating shaft. The outer circumferential wall of the first sector plate is in contact with the first roller.

[0015] A guide block is provided at the side end of the swing arm. The guide block is parallel to the swing arm. A guide groove is provided along the length direction on the side of the guide block away from the swing arm. A rack is provided in the guide groove. The rack can slide back and forth in the guide groove. The rack meshes with the sector gear.

[0016] A second fixing block is provided below the rack, and the second fixing block is fixedly connected to the inner wall of the box. One end of the third connecting rod is hinged to the second fixing block, and the other end of the third connecting rod is connected to one end of the fourth connecting rod. The other end of the fourth connecting rod is provided with a second roller, which can contact the outer circumferential wall of the second sector plate. A sleeve is rotatably connected at the intersection of the fourth connecting rod and the third connecting rod. The end of the swing rod away from the second rotating shaft passes through the sleeve, and the swing rod can reciprocate within the sleeve. The lower end of the rack is connected to one end of the fifth connecting rod in the vertical direction. The other end of the fifth connecting rod is connected to one end of the inclined rod. The other end of the inclined rod is connected to one end of the vertical pulling rod. The other end of the pulling rod is connected to one end of the third steel wire rope extending into the box.

[0017] Preferably, the outer wall of the housing is provided with heat dissipation holes.

[0018] Preferably, a filter screen is provided inside the heat dissipation hole.

[0019] The technical solution of this invention has the following advantages: An installation bracket for a photovoltaic power generation system according to this invention includes: a fixed frame and a movable frame. The fixed frame includes a first fixed rod, a second fixed rod, and a first connecting rod. The first and second fixed rods are arranged vertically at intervals. The length of the first fixed rod is greater than the length of the second fixed rod. The first and second fixed rods are connected by a first connecting rod in a horizontal direction. Several fixed frames are arranged in a row. The movable frame includes a crossbar and support rods. The crossbar is arranged horizontally and parallel to the first connecting rod. Several vertical support rods are arranged at the bottom of the crossbar along its length. A first support column and a second support column are arranged at intervals at the top of the crossbar. The length of the first support column is greater than the length of the second support column. One end of a first steel wire rope is connected to the upper end of the first fixed rod, and the other end of the first steel wire rope is connected to the upper end of the first support column. One end of a second steel wire rope is connected to the upper end of the second fixed rod, and the other end of the second steel wire rope is connected to the upper end of the second support column. Photovoltaic modules are mounted on the first and second steel wire ropes. The mobile frame can be made at different heights according to the terrain and fixedly installed, thus adapting to different unfavorable terrains such as valleys, ditches, and hillsides. Since the length of the first support column is greater than the length of the second support column, the photovoltaic modules installed on the first and second steel wire ropes are tilted to facilitate the drainage of rainwater.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 yes Figure 1 Enlarged view of point A;

[0025] Figure 3 yes Figure 1 Enlarged view of point B;

[0026] Figure 4 This is a schematic diagram of the shock absorption device in this invention;

[0027] Figure 5 This is a schematic diagram of the structure of the box in this invention;

[0028] Figure 6 This is a schematic diagram of the rainwater accumulation device in this invention;

[0029] Among them, 1-fixed frame, 101-first fixed rod, 102-second fixed rod, 103-first connecting rod, 2-moving frame, 201-crossbar, 202-support rod, 203-first support column, 204-second support column, 3-first steel wire rope, 4-second steel wire rope, 5-photovoltaic module, 6-base plate, 7-slide groove, 8-first guide rod, 9-slider, 10-first spring, 11-fixed tube, 12-second spring, 13-third spring, 14-connecting plate, 15-groove body, 16-screw, 17-second guide rod, 18-connecting hole, 19-... - Box body, 20 - Opening, 21 - Third steel wire rope, 22 - First fixing block, 23 - First rotating shaft, 24 - Sector gear, 25 - Second connecting rod, 26 - First roller, 27 - Second rotating shaft, 28 - Swing rod, 29 - First sector plate, 30 - Second sector plate, 31 - Guide block, 32 - Guide groove, 33 - Rack, 34 - Second fixing block, 35 - Third connecting rod, 36 - Fourth connecting rod, 37 - Second roller, 38 - Sleeve, 39 - Fifth connecting rod, 40 - Diagonal rod, 41 - Pulling rod, 42 - Heat dissipation hole, 43 - Filter screen, 44 - Handle. Detailed Implementation

[0030] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] The present invention provides a mounting bracket for a photovoltaic power generation system, such as... Figure 1-3 As shown, the system includes: a fixed frame 1 and a movable frame 2. The fixed frame 1 includes a first fixed rod 101, a second fixed rod 102, and a first connecting rod 103. The first fixed rod 101 and the second fixed rod 102 are arranged vertically at intervals. The length of the first fixed rod 101 is greater than the length of the second fixed rod 102. The first fixed rod 101 and the second fixed rod 102 are connected by a first connecting rod 103 in a horizontal direction. Several fixed frames 1 are arranged in a row. The movable frame 2 includes a crossbar 201 and a support rod 202. The crossbar 201 is arranged horizontally and is connected to the first connecting rod 103. 03 Parallel, the bottom of the crossbar 201 is provided with several vertical support rods 202 along the length direction, the top of the crossbar 201 is provided with a first support column 203 and a second support column 204 at intervals, the length of the first support column 203 is greater than the length of the second support column 204, one end of the first steel wire rope 3 is connected to the upper end of the first fixed rod 101, the other end of the first steel wire rope 3 is connected to the upper end of the first support column 203, one end of the second steel wire rope 4 is connected to the upper end of the second fixed rod 102, the other end of the second steel wire rope 4 is connected to the upper end of the second support column 204, and photovoltaic modules 5 are provided on the first steel wire rope 3 and the second steel wire rope 4.

[0035] Both the first fixing rod 101 and the second fixing rod 102 are provided with a base plate 6 at their bottom ends, and the base plate 6 is provided with anchor bolts.

[0036] The working principle and beneficial technical effects of the above technical solution: The fixed frame 1 is fixed to the ground by the base plate 6. The movable frame 2 can be made at different heights according to the terrain and fixedly installed, so as to adapt to different unfavorable terrains such as valleys, ditches, and hillsides for installation. Since the length of the first support column 203 is greater than the length of the second support column 204, the photovoltaic module 5 installed on the first steel wire rope 3 and the second steel wire rope 4 is tilted, which facilitates the drainage of rainwater.

[0037] In one embodiment, such as Figure 4 As shown, a shock-absorbing device is provided at the bottom end of the support rod 202. The shock-absorbing device includes: a moving block 6, a first guide rod 8, and a slider 9.

[0038] A movable block 6 is provided below the support rod 202. A horizontal groove 7 is provided at the top of the movable block 6. A horizontal first guide rod 8 is provided in the groove 7. Both ends of the first guide rod 8 are connected to the inner wall of the groove 7. The first guide rod 8 passes through the slider 9. The slider 9 can reciprocate on the first guide rod 8. A first spring 10 is provided at both ends of the slider 9. The first spring 10 is sleeved on the first guide rod 8. One end of the first spring 10 is connected to the slider 9, and the other end of the first spring 10 is connected to the inner wall of the groove 7.

[0039] The upper end of the slider 9 is provided with a vertically oriented fixing tube 11. One end of the fixing tube 11 is connected to the upper end of the slider 9. The end of the support rod 202 away from the crossbar 201 is inserted into the other end of the fixing tube 11. A second spring 12 is provided inside the fixing tube 11. One end of the second spring 12 is connected to the upper end of the slider 9, and the other end of the second spring 12 is connected to the lower end of the support rod 202. A third spring 13 is provided inside the second spring 12. One end of the third spring 13 is connected to the upper end of the slider 9, and the other end of the third spring 13 is connected to the lower end of the support rod 202. The second spring 12 is in a compressed state, and the third spring 13 is in a stretched state.

[0040] A connecting plate 14 is provided below the movable block 6, and a groove 15 is provided at the top of the connecting plate 14. The movable block 6 is located in the groove 15. A screw 16 and a second guide rod 17 are respectively provided in the groove 15. The second guide rod 17 is located above the screw 16. Both ends of the second guide rod 17 are connected to the inner wall of the groove 15. The second guide rod 17 passes through the lower end of the movable block 6, and the movable block 6 can move back and forth along the second guide rod 17. The screw 16 passes through the lower end of the movable block 6 and is threadedly connected to the movable block 6. One end of the screw 16 is rotatably connected to the inner wall of the groove 15, and the other end of the screw 16 passes through the side wall of the groove 15 and is connected to the handle 44. The screw 16 is rotatably connected to the side wall of the groove 15.

[0041] The working principle and beneficial technical effects of the above technical solution are as follows: After the photovoltaic support has been used for a long time, the tension of the steel bars will loosen. At this time, turning the handle 44 will drive the screw 16 to rotate. Through the threaded transmission between the screw 16 and the moving block 6, the groove body 15 will move left and right. The crossbar 201 and the support rod 202 will also move left and right. Correspondingly, the first steel wire rope 3 and the second steel wire rope 4 installed on the first support column 203 and the second support column 204 will also be tightened or loosened, thereby adjusting the tension of the steel wire ropes, maintaining the rigidity of the entire photovoltaic support system, and improving the stability of the support. Since the slider 9 can move left and right in the horizontal direction, and the support rod 202 can move up and down in the fixed tube 11, the first spring 10 and the second spring 12 can play a good buffering role in the horizontal and vertical directions. When the pressure in the vertical direction is too great, exceeding a certain displacement, the third spring 13 will change from a stretched state to a compressed state, and the second spring 12 and the third spring 13 will also change to a compressed state. Similarly, if subjected to vertical stretching, and the tension is too great, the second spring 12 and the third spring 13 will both change to a stretched state. Therefore, when the support system is subjected to a huge impact force in the vertical direction, the rigidity of the elastic system composed of the second spring 12 and the third spring 13 will rapidly increase, thereby resisting the strong impact force.

[0042] In one embodiment, the connecting plate 14 is provided with a plurality of connecting holes 18 at both ends to facilitate the installation and disassembly of the connecting plate 14.

[0043] In one embodiment, such as Figure 5-6 As shown, it also includes a rainwater accumulation prevention device, which includes: a housing 19, a sector gear 24, a swing rod 28, a guide block 31, and a pull rod 41.

[0044] An opening 20 is provided on the outer wall of the box 19. One end of the third wire rope 21 is connected to the crossbar 201 near the support rod 202, and the other end of the third wire rope 21 extends through the opening 20 into the box 19.

[0045] A first fixing block 22 is provided on the inner wall of the housing 19. A first rotating shaft 23 is provided on the first fixing block 22. One end of the first rotating shaft 23 is rotatably connected to the first fixing block 22. A sector gear 24 and a second connecting rod 25 are respectively provided on the other end of the first rotating shaft 23. The first rotating shaft 23 passes through the center of the sector gear 24 and is fixedly connected to the sector gear 24. One end of the second connecting rod 25 is perpendicularly connected to the first rotating shaft 23. A first roller 26 is provided on the other end of the second connecting rod 25.

[0046] A second rotating shaft 27 is provided on the inner wall of the housing 19. The second rotating shaft 27 is on the same horizontal plane and parallel to the first rotating shaft 23. One end of the second rotating shaft 27 is connected to the output shaft of the motor, and the motor is fixed on the inner wall of the housing 19. The other end of the second rotating shaft 27 is rotatably connected to one end of the swing rod 28. The second rotating shaft 27 is perpendicular to the swing rod 28, and the other end of the swing rod 28 faces downward. A first sector plate 29 and a second sector plate 30 are coaxially arranged on the second rotating shaft 27. The first sector plate 29 and the second sector plate 30 are radially symmetrical about the second rotating shaft 27. The outer circumferential wall of the first sector plate 29 is in contact with the first roller 26.

[0047] A guide block 31 is provided on the side end of the swing arm 28. The guide block 31 is parallel to the swing arm 28. A guide groove 32 is provided on the side of the guide block 31 away from the swing arm 28 along the length direction. A rack 33 is provided in the guide groove 32. The rack 33 can slide back and forth in the guide groove 32. The rack 33 meshes with the sector gear 24.

[0048] A second fixing block 34 is provided below the rack 33. The second fixing block 34 is fixedly connected to the inner wall of the box 19. One end of the third connecting rod 35 is hinged to the second fixing block 34, and the other end of the third connecting rod 35 is connected to one end of the fourth connecting rod 36. The other end of the fourth connecting rod 36 is provided with a second roller 37, which can contact the outer circumferential wall of the second sector plate 30. A sleeve 38 is rotatably connected at the intersection of the fourth connecting rod 36 and the third connecting rod 35. One end of the swing rod 28 away from the second rotating shaft 27 passes through the sleeve 38, and the swing rod 28 can reciprocate within the sleeve 38. The lower end of the rack 33 is connected to one end of the fifth connecting rod 39 in the vertical direction. The other end of the fifth connecting rod 39 is connected to one end of the inclined rod 40. The other end of the inclined rod 40 is connected to one end of the vertical pulling rod 41. The other end of the pulling rod 41 is connected to one end of the third steel wire rope 21 extending into the box 19.

[0049] The working principle and beneficial technical effects of the above technical solution are as follows: When it rains heavily, the starting motor drives the second rotating shaft 27 to rotate, which in turn drives the first sector plate 29 to rotate. Through the contact between the first sector plate 29 and the first roller 26, the second connecting rod 25 is driven to swing. The second connecting rod 25 drives the sector gear 24 to swing up and down. Through the meshing of the sector gear 24 and the rack 33, the rack 33 is driven to reciprocate up and down along the guide block 31. At the same time, the second rotating shaft 27 drives the second sector plate 30 to rotate. Through the contact between the second sector plate 30 and the second roller 37, the fourth connecting rod 36 and the third connecting rod 35 swing left and right. Correspondingly, the sleeve 38 swings left and right, and the swing rod 28 reciprocates within the sleeve 38, causing the swing rod 28 to swing left and right. Rod 28 drives guide block 31 and rack 33 to swing left and right. While rack 33 moves up and down, it also swings left and right. Through the superposition of motion, the fifth connecting rod 39, diagonal rod 40 and traction rod 41, which are fixed to the lower end of rack 33, will move along a trapezoidal trajectory. The traction rod 41 will also pull the third steel wire rope 21 along the trapezoidal trajectory. The up and down traction makes the photovoltaic module 5 vibrate, which facilitates the sliding of rainwater out of the photovoltaic module 5. In addition, it can also make the photovoltaic module 5 tilt, which facilitates the flow of rainwater. The photovoltaic module 5 moves cyclically along the trapezoidal trajectory, so that the rainwater on the photovoltaic module 5 can move forward in the vibration, so that the rainwater can quickly leave the photovoltaic module, reduce the accumulation of rainwater on the surface of the photovoltaic module, and improve the service life of the photovoltaic module. A rain sensor is installed on the outer wall of the housing 19, and a processor is installed on the inner wall of the housing 19. The rain sensor is electrically connected to the processor, and the processor is electrically connected to the motor. When the rain sensor detects rain, the processor will start the motor to drive the rainwater accumulation prevention device to operate, preventing rainwater from accumulating on the photovoltaic modules and realizing the automatic removal of rainwater.

[0050] In one embodiment, such as Figure 5 As shown, the outer wall of the housing 19 is provided with heat dissipation holes 42, and a filter screen 43 is provided inside the heat dissipation holes 42. The heat dissipation holes 42 are used for heat dissipation, and the filter screen 43 can prevent foreign objects from entering the housing 19.

[0051] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A mounting bracket for a photovoltaic power generation system, characterized in that, include: A fixed frame (1) and a movable frame (2) are provided. The fixed frame (1) includes a first fixed rod (101), a second fixed rod (102), and a first connecting rod (103). The first fixed rod (101) and the second fixed rod (102) are arranged vertically at intervals. The length of the first fixed rod (101) is greater than the length of the second fixed rod (102). The first fixed rod (101) and the second fixed rod (102) are connected by a first connecting rod (103) in a horizontal direction. Several fixed frames (1) are arranged in a row. The movable frame (2) includes a crossbar (201) and a support rod (202). The crossbar (201) is arranged horizontally. The crossbar (201) is connected to the first connecting rod (103). Parallel, the bottom of the crossbar (201) is provided with several vertical support rods (202) along the length direction, the top of the crossbar (201) is provided with a first support column (203) and a second support column (204) at intervals, the length of the first support column (203) is greater than the length of the second support column (204), one end of the first wire rope (3) is connected to the upper end of the first fixed rod (101), the other end of the first wire rope (3) is connected to the upper end of the first support column (203), one end of the second wire rope (4) is connected to the upper end of the second fixed rod (102), the other end of the second wire rope (4) is connected to the upper end of the second support column (204), and photovoltaic modules (5) are provided on the first wire rope (3) and the second wire rope (4). in, The bottom end of the support rod (202) is provided with a shock-absorbing device, which includes: a moving block (6), a first guide rod (8), and a slider (9). A movable block (6) is provided below the support rod (202). A horizontal groove (7) is provided at the top of the movable block (6). A first guide rod (8) is provided in the groove (7). The two ends of the first guide rod (8) are connected to the inner wall of the groove (7). The first guide rod (8) passes through the slider (9). The slider (9) can reciprocate on the first guide rod (8). A first spring (10) is provided at both ends of the slider (9). The first spring (10) is sleeved on the first guide rod (8). One end of the first spring (10) is connected to the slider (9), and the other end of the first spring (10) is connected to the inner wall of the groove (7). The upper end of the slider (9) is provided with a vertical fixing tube (11). One end of the fixing tube (11) is connected to the upper end of the slider (9). The end of the support rod (202) away from the crossbar (201) is inserted into the other end of the fixing tube (11). A second spring (12) is provided inside the fixing tube (11). One end of the second spring (12) is connected to the upper end of the slider (9). The other end of the second spring (12) is connected to the lower end of the support rod (202). A third spring (13) is provided inside the second spring (12). One end of the third spring (13) is connected to the upper end of the slider (9). The other end of the third spring (13) is connected to the lower end of the support rod (202). The second spring (12) is in a compressed state, and the third spring (13) is in a stretched state. A connecting plate (14) is provided below the movable block (6), and a groove (15) is provided at the top of the connecting plate (14). The movable block (6) is located inside the groove (15). A screw (16) and a second guide rod (17) are respectively provided inside the groove (15). The second guide rod (17) is located above the screw (16). Both ends of the second guide rod (17) are connected to the inner wall of the groove (15). The second guide rod (17) passes through the movable block. (6) At the lower end, the movable block (6) can reciprocate along the second guide rod (17). The screw (16) passes through the lower end of the movable block (6). The screw (16) is threadedly connected to the movable block (6). One end of the screw (16) is rotatably connected to the inner wall of the groove body (15). The other end of the screw (16) passes through the side wall of the groove body (15) and is connected to the handle (44). The screw (16) is rotatably connected to the side wall of the groove body (15).

2. The mounting bracket for a photovoltaic power generation system according to claim 1, characterized in that, Both the first fixing rod (101) and the second fixing rod (102) have a base plate at their bottom ends, and the base plate is provided with anchor bolts.

3. The mounting bracket for a photovoltaic power generation system according to claim 1, characterized in that, The connecting plate (14) has several connecting holes (18) at both ends.

4. The mounting bracket for a photovoltaic power generation system according to claim 1, characterized in that, It also includes a rainwater accumulation device, which includes: a housing (19), a sector gear (24), a swing rod (28), a guide block (31), and a pull rod (41). An opening (20) is provided on the outer wall of the box (19). One end of the third wire rope (21) is connected to the crossbar (201) near the support rod (202), and the other end of the third wire rope (21) extends through the opening (20) into the box (19). The inner wall of the housing (19) is provided with a first fixing block (22), and a first rotating shaft (23) is provided on the first fixing block (22). One end of the first rotating shaft (23) is rotatably connected to the first fixing block (22), and a sector gear (24) and a second connecting rod (25) are respectively provided on the other end of the first rotating shaft (23). The first rotating shaft (23) passes through the center of the sector gear (24) and is fixedly connected to the sector gear (24). One end of the second connecting rod (25) is perpendicularly connected to the first rotating shaft (23), and a first roller (26) is provided on the other end of the second connecting rod (25). A second rotating shaft (27) is provided on the inner wall of the housing (19). The second rotating shaft (27) is on the same horizontal plane and parallel to the first rotating shaft (23). One end of the second rotating shaft (27) is connected to the output shaft of the motor. The motor is fixed on the inner wall of the housing (19). The other end of the second rotating shaft (27) is rotatably connected to one end of the swing rod (28). The second rotating shaft (27) is perpendicular to the swing rod (28). The other end of the swing rod (28) is downward. A first sector plate (29) and a second sector plate (30) are coaxially arranged on the second rotating shaft (27). The first sector plate (29) and the second sector plate (30) are radially symmetrical about the second rotating shaft (27). The outer circumferential wall of the first sector plate (29) is in contact with the first roller (26). A guide block (31) is provided on the side end of the swing arm (28). The guide block (31) is parallel to the swing arm (28). A guide groove (32) is provided on the side of the guide block (31) away from the swing arm (28) along the length direction. A rack (33) is provided in the guide groove (32). The rack (33) can slide back and forth in the guide groove (32). The rack (33) meshes with the sector gear (24). A second fixing block (34) is provided below the rack (33), and the second fixing block (34) is fixedly connected to the inner wall of the box (19). One end of the third connecting rod (35) is hinged to the second fixing block (34), and the other end of the third connecting rod (35) is connected to one end of the fourth connecting rod (36). The other end of the fourth connecting rod (36) is provided with a second roller (37), which can contact the outer circumferential wall of the second sector plate (30). The fourth connecting rod (36) and the third connecting rod (35) are rotatably connected at their intersection. The sleeve (38) has one end of the swing rod (28) away from the second rotating shaft (27) passing through the sleeve (38). The swing rod (28) can reciprocate inside the sleeve (38). The lower end of the rack (33) is connected to one end of the fifth connecting rod (39) in the vertical direction. The other end of the fifth connecting rod (39) is connected to one end of the inclined rod (40). The other end of the inclined rod (40) is connected to one end of the vertical pulling rod (41). The other end of the pulling rod (41) is connected to one end of the third wire rope (21) extending into the box (19).

5. The mounting bracket for a photovoltaic power generation system according to claim 4, characterized in that, The outer wall of the housing (19) is provided with heat dissipation holes (42).

6. The mounting bracket for a photovoltaic power generation system according to claim 5, characterized in that, A filter screen (43) is provided inside the heat dissipation hole (42).

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