Anti-sinking photovoltaic support assembly for desert areas

Abstract

The present application relates to the field of photovoltaic support, and specifically discloses a kind of desert area is used to prevent subsidence photovoltaic support assembly, respectively include: upper support rod, for carrying photovoltaic panel in photovoltaic module;Lower sand-fixing anchor rod is fixed with the upper support rod butt joint, the lower sand-fixing anchor rod tip is pointed end, it is provided with not less than three groups of thread engagement piece on it.The present application is installed, by rotating the way of piling, and the lower sand-fixing anchor rod is driven into sand, avoid digging foundation, reduce the damage to grass checkerboard, subsequently bottom plate is placed below square plate, and rotating engagement screw, prop up lower sand-fixing anchor rod, so that thread engagement piece obtains the resistance of lifting, increase the engagement force with soil, and the purpose of preventing subsidence is realized in cooperation with grass checkerboard, subsequently upper support rod is inserted into lower sand-fixing anchor rod and is fixed, subsequent installation operation can be carried out, can be directly constructed on grass checkerboard land, construction speed is fast, the degree of damage to land is small, suitable for flexible construction.

Description

Technical Field

[0001] This invention relates to photovoltaic support technology, specifically a photovoltaic support component for preventing subsidence in desert areas. Background Technology

[0002] As is well known, desert areas are mostly located in low-latitude regions, where the sun shines directly on them all year round, resulting in a high amount of sunlight per unit area, making them very suitable for building photovoltaic power stations. In the construction of these stations, additional components and supports are used to support the photovoltaic panels, overcoming the complex terrain of the desert.

[0003] For example, the invention patent with publication number CN118573091B, publication date November 15, 2024, entitled "Photovoltaic Support", includes: a load-bearing module for fixed connection to a wall; a support module for installing photovoltaic panels, the support module having at least three connecting parts; and a transfer module including a first connecting member and a second connecting member; the first connecting member includes a rotating rod, one end of which is rotatably connected to the load-bearing module, and the other end of which is rotatably connected to the first connecting part; the second connecting member is fixedly connected to the load-bearing module, and can be detachably connected to either the second or third connecting part; when the second connecting member is detachably connected to the second connecting part, the distance between the first connecting part and the load-bearing module is a first distance, and when the second connecting member is detachably connected to the third connecting part, the distance between the first connecting part and the load-bearing module is a second distance, the first distance being greater than the second distance. Based on the photovoltaic support provided in this application, the limitations of applicable scenarios and inconvenient maintenance of photovoltaic support systems in related technologies can be solved.

[0004] The shortcomings of existing technologies are that the geological conditions in desert areas are loose sandy soil structures and there is severe wind and sand activity. Grass checkerboard is a low-cost and high-efficiency means of sand fixation and is widely used in photovoltaic power stations. However, the construction steps of conventional cement mortar foundations or cement piles are cumbersome, requiring excavation, formwork and steel reinforcement pouring, and the construction process will damage the grass checkerboard, making it inflexible. Summary of the Invention

[0005] The purpose of this invention is to provide a photovoltaic support assembly for desert areas to prevent subsidence, thereby addressing the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic support assembly for desert areas to prevent subsidence, comprising:

[0007] The upper support rod is used to support the photovoltaic panels in the photovoltaic module.

[0008] The lower sand-fixing anchor rod is connected and fixed to the upper support rod. The end of the lower sand-fixing anchor rod is a pointed tip, which is provided with no less than three sets of threaded engagement plates.

[0009] A square plate is installed at the top of the lower sand-fixing anchor rod, and a locking screw is threaded onto it;

[0010] The base plate is fitted to the grass checkerboard sand, and the engagement screw pushes against the base plate to engage the threaded engagement piece with the sand.

[0011] As a further description of the above technical solution: it also includes an angle adjustment mechanism, which includes steel cables passing through both sides of the plurality of photovoltaic panels, the two steel cables being driven to tighten or loosen in order to adjust the angle of the plurality of photovoltaic panels.

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

[0013] As a further description of the above technical solution: the upper support rod is provided with a locking groove, the lower sand-fixing anchor rod is provided with a side groove corresponding to the locking groove, and 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 base plate, a movable frame that moves along the hinged column is provided on the top plate, and an anchor point is provided on the top plate to pry the base plate to flip.

[0015] As a further description of the above technical solution: the angle adjustment mechanism also includes an arc-shaped limiting plate disposed on the upper support rod, and the photovoltaic panel has extended protrusions that move within the arc-shaped limiting plate at both ends.

[0016] As a further description of the above technical solution: multiple sets of elastic plates are arranged in a linear array symmetrically inside the arc-shaped limiting plate, and the extending boss is limited and fixed by the elastic plates.

[0017] As a further description of the above technical solution: an elastic connector is hinged between the two sets of photovoltaic panels, and the elastic connector flips and stretches as the photovoltaic panels are interleaved.

[0018] As a further description of the above technical solution: the elastic connector includes a coupling head disposed 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 the steel cable, the winch being disposed on the base plate.

[0020] In the above technical solution, the photovoltaic support assembly for preventing subsidence in desert areas provided by the present invention has the following beneficial effects: During installation, the lower sand-fixing anchor rod is driven into the sand by rotating pile driving, avoiding the need to dig a foundation pit and reducing damage to the grass grid. Then, the base plate is placed under the square plate, and the engagement screw is rotated to support the lower sand-fixing anchor rod, so that the threaded engagement plate obtains upward resistance, increasing the engagement force with the soil. Combined with the grass grid, the purpose of preventing subsidence is achieved. Then, the upper support rod is 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, the construction speed is fast, the degree of damage to the land is small, and it is suitable for flexible construction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention;

[0023] Figure 2 An exploded structural diagram 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 Enlarged view of point A in the middle;

[0025] Figure 4 This is an exploded view of the overall structure provided in an embodiment of the present invention;

[0026] Figure 5 This is another schematic diagram of the overall structure provided in an embodiment of the present invention;

[0027] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0028] Figure 7 This is a schematic cross-sectional view of the overall structure provided in an embodiment of the present invention;

[0029] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0030] Figure 9 This is a schematic cross-sectional view of the overall structure from another angle, provided in an embodiment of the present invention.

[0031] Figure 10 for Figure 9 Enlarged view of point D;

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

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Upper support rod; 11. Connecting rod; 12. Locking groove; 13. Expansion frame; 14. Connecting joint; 2. Lower sand-fixing anchor rod; 21. Threaded engagement piece; 22. Grout outlet; 24. Connecting interface; 241. Side groove; 25. Square plate; 251. Threaded opening; 26. Engaging screw; 3. Photovoltaic module; 31. Photovoltaic panel; 32. Protective frame; 321. Extension boss; 33. Arc limiting plate; 331. Elastic plate; 34. Elastic connector; 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 engagement mechanism; 51. Side frame; 52. Base plate; 521. Hinge column; 53. Top plate; 531. Movable frame. Detailed Implementation

[0035] 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] Please see Figure 1-11 This invention provides a technical solution: a photovoltaic support assembly for desert areas to prevent subsidence, comprising an upper support rod 1, a lower sand-stabilizing anchor rod 2, a square plate 25, and a base plate 52. An expansion frame 13 is mounted on the upper support rod 1, which supports the photovoltaic panels 31 in the photovoltaic assembly 3. The size of the expansion frame 13 can vary with the size of the photovoltaic panels 31. Figure 1 and Figure 7 This refers to two different sizes of photovoltaic panels 31. The expansion frame 13 is equipped with a connector 14, which, after being snapped together with the upper support rod 1, can be fixed by welding or screws. The lower sand-fixing anchor 2 is connected and fixed to the upper support rod 1; the end of the lower sand-fixing anchor 2 is a pointed tip. Figure 7For reference, the lower end is the bottom end and the upper end is the top end. The pointed end is for easy insertion into the sand. The anchor body of the lower sand-fixing anchor 2 is provided with no less than three sets of threaded engagement plates 21. During installation, the lower sand-fixing anchor 2 is rotated to assist in burying the lower sand-fixing anchor 2 into the sand through the threaded engagement plates 21. A square plate 25 is set at the top of the lower sand-fixing anchor 2. The square plate 25 has a threaded opening 251, and an engagement screw 26 is threaded onto the threaded opening 251. The base plate 52 is attached to the grass square sand. After the lower sand-fixing anchor 2 is installed, the engagement screw 26 is rotated to move towards the base plate 52 to push against it, so that the lower sand-fixing anchor 2 has an upward force. The upward force causes the threaded engagement plates 21 to engage with the sand, which achieves the purpose of sand fixation and preventing subsidence. The lower sand-fixing anchor 2 has a mating interface 24, which corresponds to the connecting rod 11 on the upper support rod 1. The lower sand-fixing anchor 2 has a grout outlet 22 that communicates with the mating interface 24. After the lower sand-fixing anchor 2 is buried to the lowest position, it is rotated in the opposite direction and lifted a certain distance (the distance is 10% to 20% of the length of the lower sand-fixing anchor 2). Then, cement grout is poured in along the mating interface 24, and the cement grout is output along the grout outlet 22 to form a cement anchor platform to assist in fixing the lower sand-fixing anchor 2. Before the cement grout solidifies, the connecting rod 11 is inserted to fix the upper support rod 1 and the lower sand-fixing anchor 2.

[0037] In another embodiment of the present invention, an angle adjustment mechanism 4 is further included, which comprises a steel cable 41 passing through both sides (east and west sides, for reference during installation) of multiple photovoltaic panels 31. The steel cable 41 is slidably positioned at 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 restrict the passage of the steel cable 41. When the steel cable 41 is pulled taut, the photovoltaic panel 31 is pulled closer to the highest point by the steel cable 41. When there is a storm or strong wind in the desert area, the pulling steel cable 41 will pull both ends of the photovoltaic panel 31 taut to the highest point, making the photovoltaic panel 31 area parallel, thereby protecting it. In normal use, the steel cable 41 on one side of the photovoltaic panel 31 is taut, while the steel cable 41 on the other side of the photovoltaic panel 31 is gradually loosened. When loosening, the rotation is made with the taut side as the rotation point to adjust the angle, and vice versa, so that the photovoltaic panel 31 faces the sun, increases the conversion efficiency, and the adjustment eliminates the gear structure, reduces the damage of wind and sand in the desert area to the gear, extends the service life, and facilitates maintenance.

[0038] Preferably, the angle adjustment mechanism 4 further includes an arc-shaped limiting plate 33 disposed on the upper support rod 1. Two arc-shaped limiting plates 33 correspond to one photovoltaic panel 31. The size of the arc-shaped limiting plate 33 changes with the size of the photovoltaic panel 31. A protective frame 32 is disposed on the photovoltaic panel 31. Extended protrusions 321 that move within the arc-shaped limiting plate 33 are disposed at both ends of the protective frame 32 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 shakes, it will be restricted by the two arc-shaped limiting plates 33 and cannot rotate at will, thereby reducing the shaking amplitude of the photovoltaic panel 31 and protecting the photovoltaic panel 31.

[0039] Preferably, multiple sets of elastic plates 331 are arranged in a linear array symmetrically within the arc-shaped limiting plate 33. When the steel cable 41 is relaxed and the photovoltaic panel 31 is rotated, the extension boss 321 slides along the arc-shaped limiting plate 33 and is restricted and fixed by the elastic plates 331 to fix the rotation angle of the photovoltaic panel 31. Several fixed angles facilitate adjustment, reduce the precision of the power source driving the steel cable 41, reduce the number of precision instruments, and are more suitable for desert environments. As the steel cable 41 continues to relax, the self-weight of the photovoltaic panel 31 causes the extension boss 321 to pass over the elastic plates 331 for angle adjustment.

[0040] Preferably, an elastic connector 34 is hinged between the two sets of photovoltaic panels 31. The number of elastic connectors 34 is not less than one and can be increased according to the size of the photovoltaic panels 31. The elastic connector 34 includes a coupling head 341 disposed on the photovoltaic panel 31. A telescopic plate 342 is rotatably connected between the two coupling heads 341. A spring 343 is disposed between the telescopic plates 342, which can act as a damping element. When the photovoltaic panel 31 rotates at an angle due to the slack of the steel cable 41, the photovoltaic panel 31 at the center will tilt first due to the weight and flexibility of the steel cable 41. At this time, the telescopic plate 342 pulls the adjacent photovoltaic panels 31, and with the restraint of the elastic plate 331, keeps multiple photovoltaic panels 31 at the same angle.

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

[0042] Preferably, a hinge post 521 is provided on the base plate 52, and a movable frame 531 that moves along the hinge post 521 is provided on the top plate 53. The hinge post 521 is slidably disposed in a groove. Anchor points are provided on the top plate 53 to pry the base plate 52 and flip it over. During installation, the hinge post 521 on the base plate 52 is slid into the groove and slides to the bottom of the groove. Figure 8 For reference, the left end is the bottom. Then, the top plate 53 is lowered and rotated along the hinge post 521. The bottom plate 52 is flipped by the anchor point to maintain the biting force of the threaded engagement piece 21.

[0043] In another embodiment of the present invention, a locking groove 12 is provided on the upper support rod 1. The locking grooves 12 are symmetrically arranged and correspond 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 sliding groove. At this time, the bottom plate 52 passes through the side groove 241 and is embedded in the locking groove 12 as the top plate 53 is pushed, locking the lower sand-fixing anchor rod 2 and the upper support rod 1, which plays an auxiliary locking role.

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

[0045] During installation, firstly, rotate the lower sand-fixing anchor 2 to assist in burying it in the sand through the threaded engagement piece 21, and then rotate it upwards a certain distance in the opposite direction. Next, inject cement grout along the joint 24, allowing the grout to exit through the grout outlet 22, forming a cement anchor platform to further fix the lower sand-fixing anchor 2. Before the cement grout solidifies, insert the connecting rod 11 to fix the upper support rod 1 and the lower sand-fixing anchor 2. Then, install the side frame 51, and slide the hinged column 521 on the base plate 52 along the groove until it reaches the bottom of the groove, allowing the base plate 52 to follow the top plate 53. The lower sand-fixing anchor rod 2 and the upper support rod 1 are locked by pushing through the side groove 241 and embedding into the locking groove 12. Then, the engagement screw 26 is rotated and moved towards the bottom plate 52 to push, so that the lower sand-fixing anchor rod 2 has an upward force. The upward force makes the threaded engagement piece 21 engage with the sand, which achieves the purpose of fixing sand and preventing subsidence. At this time, the initial installation is completed. After the cement solidifies, the base frame 42 is set on the connecting rod 43 as a counterweight, so that the top plate 53 is driven by the weight to rotate along the hinge column 521. The bottom plate 52 is flipped by the anchor point to maintain the engagement force of the threaded engagement 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 taut, while the steel cable 41 on the other side of the photovoltaic panel 31 is gradually relaxed. When it is relaxed, the panel is rotated around the taut side to adjust the angle. During the rotation, due to the weight and flexibility of the steel cable 41, the photovoltaic panel 31 in the center will tilt first. At this time, the telescopic plate 342 pulls the adjacent photovoltaic panels 31, and with the restriction of the elastic plate 331, the multiple photovoltaic panels 31 are kept 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 shakes, it will be restricted by the two arc-shaped restriction plates 33 and cannot be rotated at will.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic support assembly for preventing subsidence in desert areas, characterized in that, These include: Upper support rod (1), which is used to support the photovoltaic panel (31) in the photovoltaic module (3); The lower sand-fixing anchor (2) is connected and fixed to the upper support rod (1). The lower sand-fixing anchor (2) has a pointed end with at least three sets of threaded engagement pieces (21). A square plate (25) is set at the top of the lower sand-fixing anchor (2), and a threaded screw (26) is threaded onto it. The base plate (52) is fitted to the grass checkerboard sand, and the engagement screw (26) pushes against the base plate (52) to engage the threaded engagement piece (21) with the sand.

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), the two steel cables (41) being driven to tighten or loosen in order to adjust the angle of the plurality of photovoltaic panels (31).

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

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

5. A photovoltaic support assembly for desert areas according to claim 3, characterized in that, The base plate (52) is provided with a hinge column (521), the top plate (53) is provided with a movable frame (531) that moves along the hinge column (521), and the top plate (53) is provided with an anchor point that pryes the base plate (52) to flip.

6. A photovoltaic support assembly for desert areas to prevent subsidence, as described in claim 2, is characterized in that... The angle adjustment mechanism (4) also includes an arc-shaped limiting plate (33) set on the upper support rod (1), and the photovoltaic panel (31) has an extension boss (321) at both ends that moves within the arc-shaped limiting plate (33).

7. A photovoltaic support assembly for desert areas according to claim 6, characterized in that, The arc-shaped limiting plate (33) has multiple sets of elastic plates (331) arranged in a linear array symmetrically, and the extension boss (321) is limited and fixed by the elastic plates (331).

8. A photovoltaic support assembly for desert areas according to claim 6, characterized in that, An elastic connector (34) is hinged between the two sets of photovoltaic panels (31), and the elastic connector (34) flips and stretches as the photovoltaic panels (31) are interleaved.

9. A photovoltaic support assembly for desert areas according to claim 8, characterized in that, The elastic connector (34) includes a coupling head (341) disposed on the photovoltaic panel (31), and a telescopic plate (342) is rotatably connected between the two coupling heads (341).

10. A photovoltaic support assembly for desert areas to prevent subsidence, as described in claim 2, is characterized in that... It also includes a winch (421) for winding the steel cable (41), the winch (421) being disposed on the base plate (52).

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