Anti-subsidence photovoltaic support assembly used in desert area

Abstract

The invention relates to the field of photovoltaic supports, and particularly discloses an anti-subsidence photovoltaic support assembly for a desert area, and the assembly comprises an upper supporting rod which is used for bearing a photovoltaic plate in a photovoltaic assembly; the lower sand stabilization anchor rod is in butt joint and fixed with the upper supporting rod, the tail end of the lower sand stabilization anchor rod is a tip end, and no less than three groups of threaded meshing pieces are arranged on the lower sand stabilization anchor rod. During installation, the lower sand-fixing anchor rod is driven into a sand land in a rotary piling mode, pit digging of a foundation is avoided, damage to grass checks is reduced, then the bottom plate is placed below the square plate, the occlusion screws are rotated, the lower sand-fixing anchor rod is supported, the threaded occlusion pieces obtain lifting resistance, the occlusion force with soil is increased, and the sand-fixing effect is improved. And then the upper supporting rod is inserted into the lower sand stabilization anchor rod to be fixed, follow-up installation operation can be carried out, construction can be directly carried out on grass checkered land, the construction speed is high, the damage degree to the land is small, and flexible construction is suitable for being carried out.

Description

Technical Field

[0001] The present invention relates to photovoltaic support technology, in particular to an anti-sinking photovoltaic support assembly for use in desert areas. Background Art

[0002] As we all know, sandy areas are mostly located in low-latitude areas. The areas receive direct sunlight all year round and receive more light per unit area, which is very suitable for building photovoltaic power stations. In the construction of desert areas, additional component brackets will be used to support photovoltaic panels to overcome the complex terrain of the desert areas.

[0003] For example, the invention patent with application publication number CN118573091B and application publication date November 15, 2024, and named “Photovoltaic Bracket” includes: a load-bearing module for fixed connection with a wall; a support module for installing photovoltaic panels, and the support module has at least three connection parts; a transfer module, including a first connection member and a second connection member; the first connection member includes a rotating rod, one end of the rotating rod is rotatably connected to the load-bearing module, and the other end of the rotating rod is rotatably connected to the first connection member; the second connection member is fixedly connected to the load-bearing module, and the second connection member can be detachably connected to the second connection member or the third connection member; when the second connection member is detachably connected to the second connection member, the distance between the first connection member and the load-bearing module is the first distance, and when the second connection member is detachably connected to the third connection member, the distance between the first connection member and the load-bearing module is the second distance, and the first distance is greater than the second distance. The photovoltaic bracket provided by this application can solve the problems of limited application scenarios and inconvenient maintenance of photovoltaic brackets in related technologies.

[0004] The shortcomings of the existing technology are that the geological conditions in desert areas are loose sandy soil structures and there are serious wind and sand activities. Grass grids are a low-cost and high-efficiency means of sand fixation and are widely used in photovoltaic power stations. However, the construction steps of conventional cement mortar bases or cement piles are cumbersome, requiring cumbersome steps such as excavation, formwork and steel bar pouring. In addition, the construction process will damage the grass grids and cannot be carried out flexibly. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-sinking photovoltaic support assembly for use in desert areas to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an anti-sinking photovoltaic support assembly for use in desert areas, comprising:

[0007] An upper support rod, which is used to support the photovoltaic panels in the photovoltaic assembly;

[0008] A lower sand-fixing anchor rod is fixedly connected to the upper support rod, and the end of the lower sand-fixing anchor rod is a pointed end, on which are provided no less than three groups of threaded engaging pieces;

[0009] A square plate, which is arranged on the top of the lower sand-fixing anchor rod and is threadedly connected with a bite screw;

[0010] The bottom plate is fitted into the grass checkered sand ground, and the engaging screw pushes against the bottom plate to make the threaded engaging piece engage with the sand ground.

[0011] As a further description of the above technical solution: it also includes an angle adjustment mechanism, which includes steel cables running through both sides of the multiple photovoltaic panels, and the two steel cables are driven to tighten or relax to adjust the angles of the multiple photovoltaic panels.

[0012] As a further description of the above technical solution: it also includes an auxiliary bite mechanism, which includes a side frame for supporting the bottom plate, and a top plate for driving the bottom plate to flip is provided on the side frame.

[0013] As a further description of the above technical solution: a locking groove is provided on the upper support rod, and a side groove corresponding to the locking groove is provided on the lower sand-fixing anchor rod. The bottom plate is driven to embed into the locking groove to lock the lower sand-fixing anchor rod and the upper support rod.

[0014] As a further description of the above technical solution: a hinged column is provided on the bottom plate, a movable frame movable along the hinged column is provided on the top plate, and an anchor point for prying the bottom plate to flip is provided on the top plate.

[0015] As a further description of the above technical solution: the angle adjustment mechanism also includes an arc limiting plate arranged on the upper support rod, and both ends of the photovoltaic panel are provided with extended bosses that move within the arc limiting plate.

[0016] As a further description of the above technical solution: a plurality of groups of elastic plates are symmetrically arranged in a linear array within the arc limiting plate, and the extended boss is restricted and fixed by the elastic plates.

[0017] As a further description of the above technical solution: an elastic connecting piece is hinged between the two groups of photovoltaic panels, and the elastic connecting piece is turned and stretched as the photovoltaic panels are staggered.

[0018] As a further description of the above technical solution: the elastic connecting member includes a coupling head arranged on the photovoltaic panel, and a telescopic plate is rotatably connected between the two coupling heads.

[0019] As a further description of the above technical solution: it also includes a winch for winding up the steel cable, and the winch is arranged on the bottom plate.

[0020] In the above technical solution, the present invention provides an anti-subsidence photovoltaic bracket assembly for desert areas, which has the following beneficial effects: during installation, the lower sand-fixing anchor rod is driven into the sand by rotating piling to avoid digging the foundation and reduce damage to the grass grid. The bottom plate is then placed under the square plate, and the bite screw is rotated to support the lower sand-fixing anchor rod, so that the threaded bite piece obtains upward resistance, increases the bite force with the soil, and cooperates with the grass grid to achieve the purpose of anti-subsidence. The upper support rod is then inserted into the lower sand-fixing anchor rod for fixation, and subsequent installation operations can be carried out. Construction can be carried out directly on the grass grid land, with fast construction speed and little damage to the land, and is suitable for flexible construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the explosion structure of the upper support rod and the lower sand-fixing anchor rod provided in an embodiment of the present invention;

[0024] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0025] Figure 4 An exploded schematic diagram of the overall structure provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the overall structure provided by an embodiment of the present invention from another angle;

[0027] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0028] Figure 7 A schematic cross-sectional view of the overall structure provided by an embodiment of the present invention;

[0029] Figure 8 for Figure 7 The enlarged schematic diagram of point C in the middle;

[0030] Figure 9 A schematic cross-sectional view of the overall structure from another angle provided by an embodiment of the present invention;

[0031] Figure 10 for Figure 9 The enlarged schematic diagram of point D in the middle;

[0032] Figure 11 A schematic cross-sectional view of a steel cable provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Upper support rod; 11. Docking rod; 12. Locking groove; 13. Expansion frame; 14. Docking joint; 2. Lower sand-fixing anchor rod; 21. Threaded bite piece; 22. Slurry outlet; 24. Docking port; 241. Side groove; 25. Square plate; 251. Threaded port; 26. Biting screw; 3. Photovoltaic module; 31. Photovoltaic panel; 32. Protection frame; 321. Extended boss; 33. Arc limiting plate; 331. Elastic plate; 34. Elastic connecting piece; 341. Coupling head; 342. Telescopic plate; 343. Spring; 4. Angle adjustment mechanism; 41. Steel cable; 42. Base frame; 421. Winch; 43. Connecting rod; 5. Auxiliary bite mechanism; 51. Side frame; 52. Bottom plate; 521. Articulated column; 53. Top plate; 531. Movable frame. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See also Figure 1-11 The embodiment of the present invention provides a technical solution: an anti-sinking photovoltaic support assembly for desert areas, comprising an upper support rod 1, a lower sand-fixing anchor rod 2, a square plate 25 and a bottom plate 52. An expansion frame 13 is provided on the upper support rod 1. The expansion frame 13 is used to support the photovoltaic panel 31 in the photovoltaic assembly 3. The size of the expansion frame 13 can change with the size of the photovoltaic panel 31, such as Figure 1 and Figure 7 That is, there are two photovoltaic panels 31 of different sizes. The expansion frame 13 is provided with a butt joint 14, which can be fixed with the upper support rod 1 by welding or screws after the butt joint 14 is connected. The lower sand-fixing anchor rod 2 is fixed with the upper support rod 1, and the end of the lower sand-fixing anchor rod 2 is a pointed end. Figure 7For reference, the end is the lower end, the upper end is the top end, and the tip is for easy insertion into the sand. The anchor body of the lower sand-fixing anchor rod 2 is provided with no less than three groups of threaded bite pieces 21. During installation, the lower sand-fixing anchor rod 2 is rotated to assist the lower sand-fixing anchor rod 2 in being buried in the sand through the threaded bite pieces 21. A square plate 25 is provided at the top of the lower sand-fixing anchor rod 2. A threaded opening 251 is provided on the square plate 25. A bite screw 26 is threadedly connected to the threaded opening 251. The bottom plate 52 fits the grass grid sand. After the lower sand-fixing anchor rod 2 is installed, the bite screw 26 is rotated to move toward the bottom plate 52 for pushing, so that the lower sand-fixing anchor rod 2 has an upward lifting force. The upward lifting force causes the threaded bite piece 21 to bite into the sand, thereby achieving the purpose of sand fixation and anti-sinking. A docking port 24 is provided on the lower sand-fixing anchor rod 2, and the docking port 24 corresponds to the docking rod 11 provided on the upper support rod 1. A slurry outlet 22 connected to the docking port 24 is provided on the lower sand-fixing anchor rod 2. After the lower sand-fixing anchor rod 2 is buried to the lowest position, it is rotated in the opposite direction and lifted up for a distance (a distance is 10% to 20% of the length of the lower sand-fixing anchor rod 2). Subsequently, cement slurry is poured along the docking port 24, and the cement slurry is output along the slurry outlet 22 to form a cement anchor platform, which assists in fixing the lower sand-fixing anchor rod 2, and the docking rod 11 is inserted before the cement slurry solidifies to fix the upper support rod 1 and the lower sand-fixing anchor rod 2.

[0037] In another embodiment provided by the present invention, an angle adjustment mechanism 4 is further included, which includes a steel cable 41 passing through both sides (the east side and the west side, for reference during installation) of the plurality of photovoltaic panels 31, and the steel cable 41 is slidably arranged on the highest point of the expansion frame 13 at the edge, such as Figure 11 As shown, a limiting head is provided at the end of the steel cable 41 to limit the passage of the steel cable 41. When the steel cable 41 is pulled and tightened, the photovoltaic panel 31 is pulled toward the highest point by the steel cable 41. When a storm or strong wind occurs in the desert area, the pulling steel cable 41 tightens both ends of the photovoltaic panel 31 and pulls them toward the highest point, making the photovoltaic panel 31 area parallel, thereby providing protection. In daily use, the steel cable 41 on one side of the photovoltaic panel 31 is tightened, while the steel cable 41 on the other side of the photovoltaic panel 31 is tightened and gradually loosened. When loosened, it rotates with the tightened side as the rotation point to adjust the angle, and vice versa, so as to point the photovoltaic panel 31 toward the sun, increase the conversion efficiency, and adjust the gear structure to reduce the damage of wind and sand in the desert area to the gears, extend the service life, and facilitate maintenance.

[0038] Preferably, the angle adjustment mechanism 4 also includes an arc limiting plate 33 arranged on the upper support rod 1, and two arc limiting plates 33 correspond to one photovoltaic panel 31. The size of the arc limiting plate 33 changes with the size of the photovoltaic panel 31. A protective frame 32 is provided on the photovoltaic panel 31, and both ends of the protective frame 32 are provided with extended bosses 321 that are movable in the arc limiting plate 33 to limit the movement path of the photovoltaic panel 31 pulled by the steel cable 41, thereby stabilizing the angle. When the wind is strong, both sets of steel cables 41 will be locked. At this time, even if the photovoltaic panel 31 is blown and shaken, it will be restricted by the two arc limiting plates 33 and cannot rotate at will, thereby reducing the shaking amplitude of the photovoltaic panel 31 to protect the photovoltaic panel 31.

[0039] Preferably, multiple groups of elastic plates 331 are symmetrically arranged in a linear array inside the arc limiting plate 33. When the steel cable 41 is relaxed and the photovoltaic panel 31 is rotated, the extended boss 321 will slide along the arc limiting plate 33 and be restricted and fixed by the elastic plate 331 to fix the rotation angle of the photovoltaic panel 31. Several fixed angles are convenient for adjustment, reducing the accuracy of the power source driving the steel cable 41, thereby reducing the number of precision instruments and being more suitable for the environment of desert areas. As the steel cable 41 continues to relax, the weight of the photovoltaic panel 31 causes the extended boss 321 to pass over the elastic plate 331 to adjust the angle.

[0040] Preferably, an elastic connecting member 34 is hinged between the two groups of photovoltaic panels 31. The number of elastic connecting members 34 is not less than one and can be increased according to the size change of the photovoltaic panel 31. The elastic connecting member 34 includes a coupling head 341 arranged on the photovoltaic panel 31. A telescopic plate 342 is rotatably connected between the two coupling heads 341. A spring 343 is arranged between the telescopic plates 342, which can act as a damping member. When the photovoltaic panel 31 rotates at an angle as the steel cable 41 relaxes, the photovoltaic panel 31 at the center will tilt first due to the deadweight and flexibility of the steel cable 41. At this time, the adjacent photovoltaic panels 31 are pulled by the telescopic plate 342, and the restriction of the elastic plate 331 is cooperated to keep the multiple photovoltaic panels 31 at the same angle.

[0041] In another embodiment provided by the present invention, an auxiliary bite mechanism 5 is further included, which includes a side frame 51 for supporting a bottom plate 52. The side frame 51 is concave and is symmetrically arranged in two numbers, such as Figure 3 As shown, the two side frames 51 are fixedly connected by screws, and a sliding groove is provided on the side frame 51. Figure 8 As shown, the bottom plate 52 is movably arranged on the slide groove, and a top plate 53 for driving the bottom plate 52 to flip is provided on the side frame 51. After the upper support rod 1 and the photovoltaic component 3 are installed, a heavy object can be added to the top plate 53 to flip the bottom plate 52 through the top plate 53 to maintain the bite force of the threaded bite piece 21.

[0042] Preferably, a hinge column 521 is provided on the bottom plate 52, and a movable frame 531 is provided on the top plate 53 to move along the hinge column 521. The hinge column 521 is slidably arranged in the slide groove, and an anchor point for prying the bottom plate 52 is provided on the top plate 53. During the installation process, the hinge column 521 on the bottom plate 52 is slid into the slide groove and slides to the bottom of the slide groove to Figure 8 For reference, the left end is the bottom, then the top plate 53 is lowered, rotated along the hinge column 521, and the bottom plate 52 is pried up and flipped through the anchor point to maintain the bite force of the threaded bite piece 21.

[0043] In another embodiment provided by the present invention, a locking groove 12 is provided on the upper support rod 1, and the locking grooves 12 are symmetrically arranged, corresponding to the two bottom plates 52 respectively. A side groove 241 corresponding to the locking groove 12 is provided on the lower sand-fixing anchor rod 2. After the side frame 51 is installed, the bottom plate 52 is slid in along the slide groove. At this time, the bottom plate 52 is pushed through the side groove 241 by the top plate 53 and embedded in the locking groove 12, thereby locking the lower sand-fixing anchor rod 2 and the upper support rod 1, thereby playing an auxiliary locking role.

[0044] In another embodiment provided by the present invention, it also includes a winch 421 for winding the steel cable 41 and a base frame 42 for supporting the winch 421. Connecting rods 43 are provided on multiple top plates 53 on the same side. The base frame 42 is provided on the connecting rod 43 to act as a counterweight, and the two winches 421 are driven to rotate by a reducer and a motor to achieve the tightening and relaxation of the steel cable 41.

[0045] During installation, first rotate the lower sand-fixing anchor rod 2 to assist the lower sand-fixing anchor rod 2 to be buried in the sand through the threaded bite piece 21, and reversely rotate it to lift it up for a distance, then pour cement slurry along the docking port 24, so that the cement slurry is output along the slurry outlet 22 to form a cement anchor platform, and assist in fixing the lower sand-fixing anchor rod 2. Insert the docking rod 11 before the cement slurry solidifies, fix the upper support rod 1 and the lower sand-fixing anchor rod 2, and then install the side frame 51, slide the hinged column 521 on the bottom plate 52 along the slide groove, and slide it to the bottom of the slide groove, so that the bottom plate 52 moves along with the top plate 53. The push rod passes through the side groove 241 and is embedded in the locking groove 12 to lock the lower sand-fixing anchor rod 2 and the upper support rod 1. Then the engaging screw 26 is rotated to move toward the bottom plate 52 for pushing, so that the lower sand-fixing anchor rod 2 has an upward force. The upward force causes the threaded engaging piece 21 to engage with the sand, thereby achieving the purpose of sand fixation and anti-sinking. At this time, the preliminary installation is completed. After the cement solidifies, the base frame 42 is set on the connecting rod 43 to act as a counterweight, so that the top plate 53 is driven by the weight to rotate along the hinge column 521, and the bottom plate 52 is flipped by prying through the anchor point to maintain the bite force of the threaded engaging piece 21.

[0046] When the angle of the solar panel needs to be adjusted, the steel cable 41 on one side of the photovoltaic panel 31 is tightened, while the steel cable 41 on the other side of the photovoltaic panel 31 is tightened and gradually relaxed. When relaxed, it is rotated with the tightened side as the rotation point to adjust the angle. During the rotation, due to the deadweight and flexibility of the steel cable 41, the photovoltaic panel 31 at the center will tilt first. At this time, the adjacent photovoltaic panels 31 are pulled by the telescopic plate 342, and the elastic plate 331 is used to limit the multiple photovoltaic panels 31 to keep them at the same angle. When the wind is strong, both sets of steel cables 41 will be locked. At this time, even if the photovoltaic panel 31 is blown and shaken, it will be restricted by the two arc limiting plates 33 and cannot rotate at will.

[0047] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An anti-sinking photovoltaic support assembly for desert areas, characterized in that: They include: An upper support rod (1) for supporting a photovoltaic panel (31) in a photovoltaic assembly (3); A lower sand-fixing anchor rod (2) is fixedly docked with the upper support rod (1), wherein the lower sand-fixing anchor rod (2) has a tip at its end and is provided with no less than three groups of threaded engaging pieces (21); A square plate (25) is provided at the top of the lower sand-fixing anchor rod (2) and is threadedly connected to a bite screw (26); The bottom plate (52) is fitted to the grass checkered sand ground, and the engaging screw (26) pushes against the bottom plate (52) to make the threaded engaging piece (21) engage with the sand ground.

2. The anti-sinking photovoltaic support assembly for desert areas according to claim 1, characterized in that: It also includes an angle adjustment mechanism (4), which includes steel cables (41) running through both sides of the plurality of photovoltaic panels (31), and the two steel cables (41) are driven to tighten or loosen to adjust the angles of the plurality of photovoltaic panels (31).

3. The anti-sinking photovoltaic support assembly for desert areas according to claim 1, characterized in that: It also includes an auxiliary bite mechanism (5), which includes a side frame (51) for supporting the bottom plate (52), and a top plate (53) for driving the bottom plate (52) to flip is provided on the side frame (51).

4. The anti-sinking photovoltaic support assembly for desert areas according to claim 1, characterized in that: The upper support rod (1) is provided with a locking groove (12), the lower sand-fixing anchor rod (2) is provided with a side groove (241) corresponding to the locking groove (12), and the bottom plate (52) is driven to embed into the locking groove (12) to lock the lower sand-fixing anchor rod (2) and the upper support rod (1).

5. The anti-sinking photovoltaic support assembly for desert areas according to claim 3, characterized in that: The bottom plate (52) is provided with a hinged column (521), the top plate (53) is provided with a movable frame (531) movable along the hinged column (521), and the top plate (53) is provided with an anchor point for prying the bottom plate (52) to flip.

6. The anti-sinking photovoltaic support assembly for desert areas according to claim 2, characterized in that: The angle adjustment mechanism (4) further comprises an arc limiting plate (33) provided on the upper support rod (1), and both ends of the photovoltaic panel (31) are provided with extension bosses (321) movable within the arc limiting plate (33).

7. The anti-sinking photovoltaic support assembly for desert areas according to claim 6, characterized in that: A plurality of groups of elastic plates (331) are symmetrically arranged in a linear array within the circular arc limiting plate (33), and the extending boss (321) is restricted and fixed by the elastic plates (331).

8. The anti-sinking photovoltaic support assembly for desert areas according to claim 6, characterized in that: An elastic connecting member (34) is hinged between the two groups of photovoltaic panels (31), and the elastic connecting member (34) is turned and stretched as the photovoltaic panels (31) are staggered.

9. The anti-sinking photovoltaic support assembly for desert areas according to claim 8, characterized in that: The elastic connecting member (34) comprises a coupling head (341) provided on the photovoltaic panel (31), and a telescopic plate (342) is rotatably connected between the two coupling heads (341).

10. The anti-sinking photovoltaic support assembly for desert areas according to claim 2, characterized in that: It also includes a winch (421) for winding up the steel cable (41), and the winch (421) is arranged on the bottom plate (52).

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