Photovoltaic support

Abstract

The invention relates to the field of photovoltaic supports, and discloses a photovoltaic support which comprises a bottom frame and supporting plates, the supporting plates are arranged at the four corners of the upper surface of the bottom frame through folding structures, top plates are arranged at the top ends of the supporting plates through inserting structures, and an overturning frame is arranged between the two top plates through a first overturning structure. A plurality of overturning plates are arranged in the overturning frame through second overturning structures, a plurality of first photovoltaic panels are installed on each overturning plate at equal intervals, a plurality of lifting frames are arranged above the overturning plates through first unfolding structures, and the multiple second photovoltaic panels are arranged, so that the light receiving area can be increased under the environment of the same occupied area; and the arrangement of the first reflective mirror and the second reflective mirror can be used for reducing the shielding shadow area on the first photovoltaic panel and the second photovoltaic panel, so that the first photovoltaic panel and the second photovoltaic panel can better receive illumination, and solar energy is converted into electric energy for utilization.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and more particularly to a photovoltaic bracket. Background Art

[0002] A photovoltaic bracket is a special bracket designed to place, install, and fix solar panels in a solar photovoltaic power generation system; common materials include aluminum alloy, carbon steel, and stainless steel. In the prior art, for a photovoltaic bracket, a servo motor in a rotating assembly drives a rotating rod to rotate, so that an airbag can be quickly laid on the surface of a plate body under the guidance of a slider. Then, a blower quickly inflates the airbag to counteract the impact force when hail falls. An upper hail-proof cloth and a lower hail-proof cloth protect the airbag, and the smooth surface can guide the hail to quickly slide off, reducing the possibility of hail, rain, and snow staying on the upper hail-proof cloth and facilitating the recycling of the airbag. However, in the prior art, solar photovoltaic panels are generally installed adjacent to each other on the photovoltaic bracket. The photovoltaic bracket occupies a large space, and the light-receiving area on the photovoltaic bracket is limited. Moreover, when maintaining the photovoltaic panels at a relatively high position and near the middle position on the photovoltaic bracket, the operation is rather troublesome. Therefore, there is room for improvement. Summary of the Invention

[0003] In order to solve the problems raised in the above background art, the present invention provides a photovoltaic bracket.

[0004] The photovoltaic bracket provided by the present invention adopts the following technical solutions: A photovoltaic bracket includes a bottom frame and a support plate. At the four corners of the upper surface of the bottom frame, support plates are provided through folding structures. The top ends of the support plates are provided with top plates through plug-in structures. Between the two top plates, a flipping frame is provided through a first flipping structure. Inside the flipping frame, multiple flipping plates are provided through a second flipping structure. On each flipping plate, multiple first photovoltaic panels are evenly installed at equal intervals. Above the flipping plates, multiple lifting frames are provided through a first unfolding structure. Inside the lifting frames, multiple unfolding plates are provided through a second unfolding structure. On each unfolding plate, a second photovoltaic panel is installed. Each group of multiple unfolding plates is in a stepped shape inside the lifting frame. A first reflector is installed at the lower part of the lifting frame, and a second reflector is installed at the lower part of each unfolding plate. Each lifting frame is located directly above the position between two adjacent first photovoltaic panels.

[0005] Preferably, the second unfolding structure includes a plurality of first grooves opened at the left and right sides of the lower surface of the lifting frame. A first bidirectional screw is rotatably passed through one set of the first grooves, and a first guide rod is fixedly passed through the other set of the first grooves. The thread directions of the two sections of the first bidirectional screw in the first groove are opposite. A first rotating block is fixedly sleeved on the rear end of the first bidirectional screw passing through the lifting frame. Two first moving blocks are slidably arranged in each of the first grooves. A thread groove for the first bidirectional screw to pass through is opened on one set of the first moving blocks, and a through hole for the first guide rod to movably pass through is opened on the other set of the first moving blocks. A first unfolding bar is rotatably connected to each of the first moving blocks, and the top end of the first unfolding bar is rotatably connected to the corresponding unfolding plate.

[0006] Preferably, the first unfolding structure includes a plurality of groups of second grooves opened at the two sides of the upper surface of the flipping plate. Each group of two second grooves are distributed between adjacent two first photovoltaic panels. Two second moving blocks are slidably arranged in each of the second grooves. A second guide rod is fixedly inserted into the left second groove, and a second bidirectional screw is rotatably inserted into the right second groove. A thread groove for the second bidirectional screw to pass through is opened on the right second moving block, and a through hole for the second guide rod to movably pass through is opened on the left second moving block. The thread directions of the two sections of the second bidirectional screw in each second groove are opposite. A second unfolding bar is rotatably connected to the second moving block, and the top end of the second unfolding bar is rotatably connected to the corresponding lifting frame. A second rotating block is fixedly sleeved on one end of the second bidirectional screw passing through the flipping plate.

[0007] Preferably, the first flipping structure includes a fixing plate connected to the middle of the lower surface of the top plate. A rotating column is rotatably passed through the two fixing plates. Connecting plates are fixedly sleeved near both ends of the rotating column. The top ends of the connecting plates are connected to the flipping frame. A first positioning structure is arranged between the rotating column and the top plate.

[0008] Preferably, the first positioning structure includes two T-shaped plates connected to the rotating column near the middle. A sleeve frame is movably sleeved on the T-shaped plate. A pull rod is connected between the two sleeve frames. A spring is connected between the sleeve frame and the T-shaped plate. A pull rod is connected between the two sleeve frames. A driving plate movably passes through each T-shaped plate. A driving groove is formed on the driving plate. A driving frame is connected to the sleeve frame. The driving frame movably passes through the driving groove. Connecting strips are connected to the upper sides of the mutually remote side surfaces of the two driving plates. A through plate is connected to one end of the connecting strip. The through plate passes through a first through groove formed on the rotating column. Receiving grooves are formed on the left and right side surfaces of the flipping frame. A second through groove is formed in the middle of the lower groove wall of the receiving groove. A positioning plate is movably inserted into the receiving groove. The positioning plate is movably inserted into a positioning groove formed on the top plate. The top end of the through plate passing through the second through groove is connected to the positioning plate.

[0009] Preferably, the second flipping structure includes openings equally spaced on the flipping frame. Multiple flipping plates are arranged in the corresponding openings. A connecting frame is connected to the middle of the lower surface of each flipping plate. A flipping sleeve is installed at the bottom end of the connecting frame. The flipping sleeve is movably sleeved on the rotating column. A second positioning structure is provided between the connecting frame and the flipping frame.

[0010] Preferably, the second positioning structure includes two moving plates movably passing through the two side surfaces of the connecting frame. Positioning rods are connected to the mutually remote ends of the two moving plates. A positioning block is connected to the lower surface of the flipping frame near the position of the moving plate. The positioning rod movably passes through a positioning hole formed on the positioning block. Two connecting blocks are connected to the lower surface of the flipping plate near the middle. A rotating tube rotatably passes through the two connecting blocks. Threads are provided on the inner wall of the rotating tube. The thread directions of the left and right two sections of the inner wall of the rotating tube are opposite. First threaded rods are rotatably inserted into both ends of the rotating tube. Thread grooves for the first threaded rods to rotatably insert are formed on the end surfaces of the moving plates.

[0011] Preferably, the folding structure includes sector plates installed at the four corners of the upper surface of the bottom frame. A rotating shaft is rotatably connected between each group of two sector plates. A rotating plate is fixedly sleeved on the rotating shaft. A sleeve groove movably sleeved on the rotating plate is formed on the bottom end surface of the support plate. A positioning strip is provided at the bottom end of one side surface of the support plate. The positioning strip is movably inserted into a vertical groove formed on the sector plate.

[0012] Preferably, the plugging structure includes a plug block installed on the top end of the support plate. The plug block is movably inserted into a plug slot formed on the top plate. A second threaded rod rotatably passes through a thread groove on the side surface of the top plate near the plug block. One end of the second threaded rod is movably inserted into a positioning hole formed on the plug block. A turntable is fixedly sleeved on the second threaded rod.

[0013] In summary, the present invention includes the following beneficial technical effects: In the present invention, above the flipping frame of the first photovoltaic panel, multiple lifting frames and second photovoltaic panels are provided. Multiple second photovoltaic panels are arranged in a stepped manner in each lifting frame. Below each expansion plate for installing the second photovoltaic panel, a second reflector is provided. Below the lifting frame, a first reflector is provided. By providing multiple second photovoltaic panels, in an environment with the same floor area, the light-receiving area can be increased, thereby improving the utilization rate of light. Moreover, the provision of the first reflector and the second reflector can be used to reduce the shaded area on the first photovoltaic panel and the second photovoltaic panel, enabling the first photovoltaic panel and the second photovoltaic panel to better receive light and convert solar energy into electrical energy for utilization; In the present invention, by providing a first unfolding structure and a second unfolding structure, the first unfolding structure can unfold or fold the lifting frame on the flipping frame, and the second unfolding structure can unfold or fold multiple second photovoltaic panels in the lifting frame. Thus, when the lifting frame is folded to the flipping frame and the second photovoltaic panels are folded into the lifting frame, the occupied space of the bracket can be reduced, facilitating the transportation work; In the present invention, by providing a folding structure and a plugging structure, not only is the installation work of the photovoltaic bracket facilitated, but also the photovoltaic bracket can be disassembled. Thus, during transportation, the occupied space of the bracket is reduced, making the transportation work more convenient; In the present invention, by providing a first flipping structure and a second flipping structure, the first flipping structure can rotate the flipping frame and multiple flipping plates as a whole, facilitating the maintenance or replacement of the first photovoltaic panel or the second photovoltaic panel above and in the middle of the photovoltaic bracket. At the same time, the second flipping structure can also be used to separately rotate the flipping plates in the flipping frame, facilitating the maintenance or replacement of the corresponding first photovoltaic panel or second photovoltaic panel on a certain flipping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a photovoltaic bracket in an embodiment of the present invention; Figure 2 is in an embodiment of the present invention Figure 1 enlarged view of the structure at A; Figure 3 is a schematic structural diagram of the lower part of the flipping frame in an embodiment of the present invention; Figure 4 is in an embodiment of the present invention Figure 3 enlarged view of the structure at B; Figure 5 is in an embodiment of the present invention Figure 3 enlarged view of the structure at C; Figure 6 is a schematic structural diagram of the flipping frame in an embodiment of the present invention; Figure 7In the embodiments of the present invention Figure 6 is an enlarged view of the structure at position D; Figure 8 is a schematic structural diagram after the second photovoltaic panel is unfolded at the lifting frame in the embodiments of the present invention; Figure 9 is a schematic structural diagram of the interior of the lifting frame in the embodiments of the present invention.

[0015] Explanation of reference numerals: 1, bottom frame; 2, support plate; 3, top plate; 4, flipping frame; 5, lifting frame; 6, flipping plate; 7, first photovoltaic panel; 8, first reflector; 9, unfolding plate; 10, second photovoltaic panel; 11, second reflector; 12, first groove; 13, first bidirectional screw; 14, first moving block; 15, first unfolding strip; 16, first rotating block; 17, second groove; 18, second bidirectional screw; 19, second moving block; 20, second unfolding strip; 21, fixing plate; 22, rotating column; 23, connecting plate; 24, T-shaped plate; 25, sleeve frame; 26, spring; 27, pull rod; 28, driving frame; 29, driving plate; 30, driving groove; 31, connecting strip; 32, penetrating plate; 33, first penetrating groove; 34, second penetrating groove; 35, positioning plate; 36, receiving groove; 37, flipping sleeve; 38, connecting frame; 39, opening; 40, connecting block; 41, rotating tube; 42, first threaded rod; 43, moving plate; 44, positioning block; 45, positioning rod; 46, positioning groove; 47, sector plate; 48, rotating shaft; 49, rotating plate; 50, positioning strip; 51, vertical groove; 52, inserting block; 53, second threaded rod; 54, turntable. Detailed implementation manners

[0016] The following further elaborates on the present invention in conjunction with the attached Figures 1-9 drawings.

[0017] Refer to Figures 1-9, an embodiment of the present invention discloses a photovoltaic support, which includes a bottom frame 1 and a support plate 2. The support plates 2 are arranged at the four corners on the upper surface of the bottom frame 1 through folding structures. The top ends of the support plates 2 are provided with a top plate 3 through a plug-in structure. A flip frame 4 is arranged between the two top plates 3 through a first flip structure. A plurality of flip plates 6 are arranged in the flip frame 4 through a second flip structure. A plurality of first photovoltaic panels 7 are evenly installed at equal intervals on each flip plate 6. A plurality of lifting frames 5 are arranged above the flip plates 6 through a first unfolding structure. A plurality of unfolding plates 9 are arranged in the lifting frames 5 through a second unfolding structure. The heights of the plurality of unfolding plates 9 increase in sequence from front to back, and a part of the lower unfolding plate 9 is inserted into the lower part of the adjacent upper unfolding plate 9. A second photovoltaic panel 10 is installed on each unfolding plate 9. Each group of a plurality of unfolding plates 9 is in a stepped shape in the lifting frame 5. A first reflector 8 is installed at the lower part of the lifting frame 5. A second reflector 11 is installed at the lower part of each unfolding plate 9. Each lifting frame 5 is located directly above the position between two adjacent first photovoltaic panels 7. The arrangement of the plurality of second photovoltaic panels 10 in the lifting frame 5 can cooperate with the first photovoltaic panels 7 to increase the light-receiving area and improve the utilization rate of solar energy in an environment with a limited floor area. The arrangement of the first reflector 8 under the lifting frame 5 can reflect the light to reduce the shadow area blocked by the lifting frame 5 on the first photovoltaic panels 7. The arrangement of the second reflector 11 under the unfolding plates 9 can reduce the shadow area blocked by the unfolding plates 9 on the second photovoltaic panels 10, further increasing the light-receiving area of the photovoltaic support and improving the utilization rate of light energy.

[0018] See Figures 6-9 , the second unfolding structure includes a plurality of first grooves 12 opened at the left and right sides of the lower surface of the lifting frame 5. A first bidirectional screw 13 is rotatably passed through each of one group of the first grooves 12, and a first guide rod is fixedly passed through the other group of the first grooves 12. The thread directions of the two sections of the first bidirectional screw 13 in the first grooves 12 are opposite. A first rotating block 16 is fixedly sleeved on the rear end of the first bidirectional screw 13 that passes out of the lifting frame 5. Two first moving blocks 14 are slidably arranged in each of the first grooves 12. A thread groove for the first bidirectional screw 13 to pass through is opened on one group of the first moving blocks 14, and a through hole for the first guide rod to movably pass through is opened on the other group of the first moving blocks 14. A first unfolding bar 15 is rotatably connected to each of the first moving blocks 14. The top end of the first unfolding bar 15 is rotatably connected to the corresponding unfolding plate 9. The lengths of the multiple groups of first unfolding bars 15 increase from front to back. When the first rotating block 16 is used to rotate the first bidirectional screw 13, each group of two first moving blocks 14 move synchronously towards the middle in the corresponding first grooves 12. Since the moving distances of each group of first moving blocks 14 are the same and the lengths of the multiple groups of first unfolding bars 15 are different, the multiple groups of unfolding plates 9 and the second photovoltaic panels 10 can be unfolded to different heights in the lifting frame 5, so as to better receive light; The first unfolding structure includes multiple groups of second grooves 17 opened on both sides above the flipping plate 6. Each group has two second grooves 17 distributed between adjacent first photovoltaic panels 7. Two second moving blocks 19 are slidably arranged in each second groove 17. A second guiding rod is fixedly inserted into the left second groove 17, and a second bidirectional screw 18 is rotatably inserted into the right second groove 17. A threaded groove for the second bidirectional screw 18 to pass through is opened on the right second moving block 19, and a through hole for the second guiding rod to movably pass through is opened on the left second moving block 19. The thread directions of the two sections of the second bidirectional screw 18 in each second groove 17 are opposite. A second unfolding bar 20 is rotatably connected to the second moving block 19. The top end of the second unfolding bar 20 is rotatably connected to the corresponding lifting frame 5. A second rotating block is fixedly sleeved on one end of the second bidirectional screw 18 passing through the flipping plate 6. When the second bidirectional screw 18 is rotated by using the second rotating block, the two second moving blocks 19 in each group move synchronously towards the middle, and through the second unfolding bar 20, the lifting frame 5 is pushed up from the flipping plate 6. While the first photovoltaic panel 7 can receive better sunlight, it cooperates with the second photovoltaic panel 10 in the lifted lifting frame 5 to further increase the light-receiving area of the bracket.

[0019] See Figures 3-5 , the first flipping structure includes a fixing plate 21 connected to the middle of the lower surface of the top plate 3. A rotating column 22 is rotatably passed through the two fixing plates 21. Connecting plates 23 are fixedly sleeved on the rotating column 22 near both ends. The top ends of the connecting plates 23 are connected to the flipping frame 4. A first positioning structure is arranged between the rotating column 22 and the top plate 3; The first positioning structure includes two T-shaped plates 24 connected to the rotating column 22 near the middle. A sleeve frame 25 is movably sleeved on the T-shaped plates 24. A pull rod 27 is connected between the two sleeve frames 25. A spring 26 is connected between the sleeve frame 25 and the T-shaped plate 24. A pull rod 27 is connected between the two sleeve frames 25. A driving plate 29 movably passes through each T-shaped plate 24. A driving groove 30 is formed on the driving plate 29. A driving frame 28 is connected to the sleeve frame 25. The driving frame 28 movably passes through the driving groove 30. Connecting strips 31 are connected to the upper sides of the mutually remote sides of the two driving plates 29. A through plate 32 is connected to one end of the connecting strip 31. The through plate 32 passes through a first through groove 33 formed on the rotating column 22. Receiving grooves 36 are formed on the left and right side surfaces of the flipping frame 4. A second through groove 34 is formed in the middle of the lower groove wall of the receiving groove 36. A positioning plate 35 is movably inserted into the receiving groove 36. The positioning plate 35 is movably inserted into a positioning groove 46 formed on the top plate 3. The top end of the through plate 32 passing through the second through groove 34 is connected to the positioning plate 35. When it is necessary to repair or replace multiple first photovoltaic panels 7 or second photovoltaic panels 10 that are located above or near the middle of the bracket and are not easily accessible, the pull rod 27 can be used to pull the sleeve frame 25 to move upward on the T-shaped plate 24, driving the driving frame 28 to slide upward in the driving groove 30, and driving the two driving plates 29 to move synchronously toward the middle, so as to pull out the positioning plate 35 from the positioning groove 46 on the top plate 3, release the positioning of the flipping frame 4 on the top plate 3, and then use the pull rod 27 to rotate the rotating column 22, driving the flipping frame 4 to rotate, so as to turn down the first photovoltaic panel 7 located above or in the middle, facilitating the repair work of the first photovoltaic panel 7 or the second photovoltaic panel 10.

[0020] See Figures 3-5 , the second flipping structure includes openings 39 equally spaced on the flipping frame 4. Multiple flipping plates 6 are arranged in the corresponding openings 39. A connecting frame 38 is connected to the middle of the lower surface of each flipping plate 6. A flipping sleeve 37 is installed at the bottom end of the connecting frame 38. The flipping sleeve 37 is movably sleeved on the rotating column 22. A second positioning structure is arranged between the connecting frame 38 and the flipping frame 4; The second positioning structure includes two moving plates 43 that movably pass through both side surfaces of the connection frame 38. Positioning rods 45 are connected to the ends of the two moving plates 43 that are away from each other. A positioning block 44 is connected to the position near the moving plates 43 below the flipping frame 4. The positioning rods 45 movably pass through the positioning holes formed in the positioning block 44. Two connecting blocks 40 are connected to the position near the middle below the flipping plate 6. A rotating tube 41 rotatably passes through the two connecting blocks 40. Threads are provided on the inner wall of the rotating tube 41, and the thread directions of the left and right two sections on the inner wall of the rotating tube 41 are opposite. First threaded rods 42 are rotatably inserted into both ends of the rotating tube 41. Thread grooves for the first threaded rods 42 to rotatably insert are formed on the end faces of the moving plates 43. When it is necessary to repair a certain first photovoltaic panel 7 or second photovoltaic panel 10 at the upper or near the middle position, the rotating tube 41 can be rotated on the corresponding connecting block 40, and the corresponding two first threaded rods 42 drive the moving plates 43 to move synchronously towards each other on the connection frame 38, so as to extract the positioning rods 45 from the positioning holes in the positioning block 44, and release the positioning of the corresponding flipping plate 6 on the flipping frame 4. Then, by using the rotation of the flipping sleeve 37 on the rotating column 22, the first photovoltaic panel 7 and the second photovoltaic panel 10 at the upper or near the middle position can be turned down, so as to repair and replace the corresponding first photovoltaic panel 7 and second photovoltaic panel 10.

[0021] See Figure 1 and Figure 2 The folding structure includes sector plates 47 installed at the four corners on the upper surface of the bottom frame 1. A rotating shaft 48 is rotatably connected between every two sets of two sector plates 47. A rotating plate 49 is fixedly sleeved on the rotating shaft 48. A sleeve groove for movably sleeving on the rotating plate 49 is formed on the bottom end surface of the support plate 2. A positioning strip 50 is arranged at the bottom end of one side surface of the support plate 2. The positioning strip 50 movably inserts into a vertical groove 51 formed in the sector plate 47; the plugging structure includes a plug block 52 installed on the top end of the support plate 2. The plug block 52 movably inserts into a slot formed in the top plate 3. A second threaded rod 53 rotatably passes through a thread groove near the plug block 52 on the side surface of the top plate 3. One end of the second threaded rod 53 movably inserts into a positioning hole formed in the plug block 52. A turntable 54 is fixedly sleeved on the second threaded rod 53. When the bracket is in transportation, first, the turntable 54 can be used to extract one end of the second threaded rod 53 from the positioning hole in the plug block 52, and the entire top plate 3 and the flipping frame 4 on the bracket can be directly disassembled. Then, the support plate 2 is lifted upward on the rotating plate 49, the positioning strip 50 is extracted from the vertical groove 51, and then, with the rotating shaft 48 as the axis, the support plate 2 is rotated and folded onto the bottom frame 1, thereby reducing the occupied space of the bracket and facilitating the transportation work of the bracket. Moreover, the installation work of the bracket is also simpler and more convenient.

[0022] The implementation principle of a photovoltaic support in an embodiment of the present invention is as follows: First, with the rotating shaft 48 as the axis, the support plate 2 is rotated on the bottom frame 1 to the vertical state. Due to the self-gravity of the support plate 2, the support plate 2 moves downward on the rotating plate 49, driving the positioning strip 50 to insert into the vertical groove 51 on the sector plate 47 to position the rotated support plate 2. Then, the top plate 3 and the flipping frame 4 are integrally installed at the top end of the support plate 2. The insertion block 52 at the top end of the support plate 2 is inserted into the slot on the top plate 3. By rotating the second threaded rod 53 with the turntable 54, the second threaded rod 53 is inserted into the positioning hole on the insertion block 52 to fix the top plate 3 and the flipping frame 4 integrally on the support plate 2. Next, by rotating the second bidirectional screw 18 with the second rotating block, each group of two second moving blocks 19 move synchronously towards the middle. Through the second unfolding strip 20, the lifting frame 5 is pushed up from the flipping plate 6. Then, when the first bidirectional screw 13 is rotated with the first rotating block 16, each group of two first moving blocks 14 move synchronously towards the middle in the corresponding first groove 12. Since the moving distance of each group of first moving blocks 14 is the same and the lengths of multiple groups of first unfolding strips 15 are different, multiple groups of unfolding plates 9 and second photovoltaic panels 10 can be unfolded to different heights in the lifting frame 5. In this way, multiple second photovoltaic panels 10 in the lifting frame 5 and the first photovoltaic panel 7 on the flipping plate 6 can increase the light-receiving area on a photovoltaic support of the same size to improve the utilization rate of solar energy. Moreover, the setting of the first reflector 8 below the lifting frame 5 can reflect the light to reduce the shadow area blocked by the lifting frame 5 on the first photovoltaic panel 7, and the setting of the second reflector 11 below the unfolding plate 9 can reduce the shadow area blocked by the unfolding plate 9 on the second photovoltaic panel 10, thereby further increasing the light-receiving area of the photovoltaic support and greatly improving the utilization rate of light energy.

[0023] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A photovoltaic support, comprising a bottom frame (1) and a support plate (2), characterized in that: On the upper surface of the bottom frame (1), support plates (2) are provided at the four corners through folding structures. At the top of the support plates (2), a top plate (3) is provided through a plug-in structure. Between the two top plates (3), a flipping frame (4) is provided through a first flipping structure. Inside the flipping frame (4), multiple flipping plates (6) are provided through a second flipping structure. On the upper surface of each flipping plate (6), multiple first photovoltaic panels (7) are evenly installed at equal intervals. Above the flipping plates (6), multiple lifting frames (5) are provided through a first unfolding structure. Inside the lifting frames (5), multiple unfolding plates (9) are provided through a second unfolding structure. On the upper surface of each unfolding plate (9), a second photovoltaic panel (10) is installed. Multiple unfolding plates (9) in each group are in a stepped shape inside the lifting frames (5). At the lower surface of the lifting frames (5), first reflectors (8) are installed. At the lower surface of each unfolding plate (9), second reflectors (11) are installed. Each lifting frame (5) is located directly above the position between two adjacent first photovoltaic panels (7).

2. The photovoltaic support according to claim 1, characterized in that: The second unfolding structure includes a plurality of first grooves (12) opened at the left and right sides of the lower surface of the lifting frame (5). A first bidirectional screw (13) rotatably passes through one group of the first grooves (12). A first guide rod fixedly passes through the other group of the first grooves (12). The thread directions of the two sections of the first bidirectional screw (13) inside the first grooves (12) are opposite. A first rotating block (16) is fixedly sleeved on the rear end of the first bidirectional screw (13) passing through the lifting frame (5). Two first moving blocks (14) are slidably arranged in each of the first grooves (12). A thread groove for the first bidirectional screw (13) to pass through is opened on one group of the first moving blocks (14). A through hole for the first guide rod to movably pass through is opened on the other group of the first moving blocks (14). A first unfolding bar (15) is rotatably connected to each of the first moving blocks (14). The top end of the first unfolding bar (15) is rotatably connected to the corresponding unfolding plate (9).

3. A photovoltaic support according to claim 2, characterized in that: The first unfolding structure includes a plurality of groups of second grooves (17) opened on both sides of the upper surface of the flipping plate (6). Each group of two second grooves (17) is distributed between adjacent first photovoltaic panels (7). Two second moving blocks (19) are slidably arranged in each second groove (17). A second guide rod is fixedly inserted into the left second groove (17), and a second bidirectional screw (18) is rotatably inserted into the right second groove (17). A threaded groove for the second bidirectional screw (18) to pass through is opened on the right second moving block (19), and a through hole for the second guide rod to movably pass through is opened on the left second moving block (19). The two sections of the second bidirectional screw (18) in each second groove (17) have opposite thread directions. A second unfolding strip (20) is rotatably connected to the second moving block (19). The top end of the second unfolding strip (20) is rotatably connected to the corresponding lifting frame (5). A second rotating block is fixedly sleeved on one end of the second bidirectional screw (18) passing through the flipping plate (6).

4. A photovoltaic support according to claim 1, characterized in that: The first flipping structure includes a fixing plate (21) connected to the middle of the lower surface of the top plate (3). A rotating column (22) rotatably passes through the two fixing plates (21). Connecting plates (23) are fixedly sleeved on the rotating column (22) near both ends. The top end of the connecting plate (23) is connected to the flipping frame (4). A first positioning structure is arranged between the rotating column (22) and the top plate (3).

5. A photovoltaic support according to claim 4, characterized in that: The first positioning structure includes two T-shaped plates (24) connected to the rotating column (22) near the middle. A sleeve frame (25) is movably sleeved on the T-shaped plate (24). A pull rod (27) is connected between the two sleeve frames (25). A spring (26) is connected between the sleeve frame (25) and the T-shaped plate (24). A pull rod (27) is connected between the two sleeve frames (25). A driving plate (29) movably passes through each T-shaped plate (24). A driving groove (30) is opened on the driving plate (29). A driving frame (28) is connected to the sleeve frame (25). The driving frame (28) movably passes through the driving groove (30). Connecting strips (31) are connected to the upper sides of the mutually remote side surfaces of the two driving plates (29). A through plate (32) is connected to one end of the connecting strip (31). The through plate (32) passes through a first through groove (33) opened on the rotating column (22). Receiving grooves (36) are opened on the left and right side surfaces of the flipping frame (4). A second through groove (34) is opened in the middle of the lower groove wall of the receiving groove (36). A positioning plate (35) is movably inserted into the receiving groove (36). The positioning plate (35) is movably inserted into a positioning groove (46) opened on the top plate (3). The top end of the through plate (32) passing through the second through groove (34) is connected to the positioning plate (35).

6. A photovoltaic support according to claim 1, characterized in that: The second flipping structure includes openings (39) evenly distributed on the flipping frame (4). A plurality of the flipping plates (6) are arranged in the corresponding openings (39). A connecting frame (38) is connected to the middle of the lower surface of each flipping plate (6). A flipping sleeve (37) is installed at the bottom end of the connecting frame (38). The flipping sleeve (37) is movably sleeved on the rotating column (22). A second positioning structure is arranged between the connecting frame (38) and the flipping frame (4).

7. A photovoltaic support according to claim 6, characterized in that: The second positioning structure includes two moving plates (43) movably passing through the two side surfaces of the connecting frame (38). A positioning rod (45) is connected to the outer end of each of the two moving plates (43). A positioning block (44) is connected to the lower surface of the flipping frame (4) near the moving plate (43). The positioning rod (45) movably passes through a positioning hole formed in the positioning block (44). Two connecting blocks (40) are connected to the lower surface of the flipping plate (6) near the middle. A rotating tube (41) rotatably passes through the two connecting blocks (40). Threads are provided on the inner wall of the rotating tube (41). The thread directions of the left and right two sections on the inner wall of the rotating tube (41) are opposite. First threaded rods (42) are rotatably inserted into both ends of the rotating tube (41). Thread grooves for the first threaded rods (42) to rotatably insert are formed on the end surfaces of the moving plates (43).

8. A photovoltaic support according to claim 1, characterized in that: The folding structure includes sector plates (47) installed at the four corners of the upper surface of the bottom frame (1). A rotating shaft (48) is rotatably connected between each group of two sector plates (47). A rotating plate (49) is fixedly sleeved on the rotating shaft (48). A sleeve groove for movably sleeving on the rotating plate (49) is formed on the bottom end surface of the support plate (2). A positioning strip (50) is arranged at the bottom end of one side surface of the support plate (2). The positioning strip (50) is movably inserted into a vertical groove (51) formed in the sector plate (47).

9. A photovoltaic support according to claim 1, wherein: The plugging structure includes a plug block (52) installed at the top end of the support plate (2). The plug block (52) is movably inserted into a slot formed in the top plate (3). A second threaded rod (53) rotatably passes through a thread groove on the side surface of the top plate (3) near the plug block (52). One end of the second threaded rod (53) is movably inserted into a positioning hole formed in the plug block (52). A turntable (54) is fixedly sleeved on the second threaded rod (53).

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