All-composite material photovoltaic support spiral ground pile

Abstract

According to the all-composite-material photovoltaic support spiral ground pile, first connecting hinge rods are arranged on the two sides of the outer wall of a fixed limiting circular plate, a second connecting hinge rod is arranged at one end of each first connecting hinge rod, and an auxiliary rotating rod is arranged between each first connecting hinge rod and the corresponding second connecting hinge rod; the first connecting hinge rod and the second connecting hinge rod are rotationally connected through an auxiliary rotating rod, the supporting hollow moving plate is arranged below the fixed limiting circular plate, a circular through hole is formed in the middle of the supporting hollow moving plate, and a spiral ground pile body is arranged in the circular through hole; the inner wall of the supporting hollow moving plate does not make contact with the outer wall of the spiral ground pile body. The height of the photovoltaic support can be flexibly adjusted by supporting the hollow moving plate to move up and down so as to meet various installation requirements, the photovoltaic panel can be kept at a proper inclination angle and height, and the optimal illumination receiving effect is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic support installation, and in particular is a spiral ground pile of a full-composite photovoltaic support. Background Art

[0002] The spiral pile is a kind of spiral drill pile, which includes a drill bit and a drill rod. The drill bit or the drill rod is connected to the power source input connector. After the pile is driven into the ground, it is no longer taken out and is directly used as a pile body. On the basis of the "end-bearing pile" structure and "friction pile" structure used in the construction process, it is more widely used in the construction of various piles, anchors, and random structure piles. The existing spiral pile foundation is the most commonly used foundation for photovoltaic brackets.

[0003] Specifically, the common photovoltaic support spiral piles on the market currently have the following shortcomings:

[0004] A. In the existing photovoltaic bracket technology, most brackets have a fixed height, which is difficult to adapt to various installation environments. For example, when installing photovoltaic brackets in areas with uneven terrain, fixed-height brackets cannot ensure that the photovoltaic panels are at a suitable tilt angle and height, thus affecting the light reception effect. Because different terrain undulations require different height adjustments to enable photovoltaic panels to achieve the best lighting state, and the existing fixed-height brackets cannot meet this flexible adjustment needs.

[0005] B. In some complex stress environments, stress concentration is prone to occur at the connection points between the components of the photovoltaic bracket. When the photovoltaic bracket is subjected to forces from different directions, such as wind force, snow pressure, etc., some parts may be subjected to excessive forces, resulting in damage or jamming of the rotating connections between components during long-term use. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a full-composite material photovoltaic support spiral pile to at least partially solve the above technical problems.

[0007] The technical solution adopted by the present invention is as follows:

[0008] The present invention proposes a spiral ground pile of an all-composite photovoltaic bracket, comprising: a fixed limiting circular plate, a first connecting hinge rod is provided on both sides of the outer wall of the fixed limiting circular plate, a second connecting hinge rod is provided at one end of the first connecting hinge rod, an auxiliary rotating rod is provided between the first connecting hinge rod and the second connecting hinge rod, and the first connecting hinge rod and the second connecting hinge rod are rotatably connected through the auxiliary rotating rod; a supporting hollow movable plate, the supporting hollow movable plate is arranged below the fixed limiting circular plate, a circular through hole is provided in the middle of the supporting hollow movable plate, a spiral ground pile body is provided inside the circular through hole, the inner wall of the supporting hollow movable plate and the outer wall of the spiral ground pile body do not contact each other, the inner wall of the fixed limiting circular plate and the outer wall of the spiral ground pile body are fixedly connected to each other, the other end of the second connecting hinge rod is fixedly connected to the outer wall of the supporting hollow movable plate, and the supporting hollow movable plate moves up and down relative to the spiral ground pile body through the rotation connection between the first connecting hinge rod and the second connecting hinge rod.

[0009] In one embodiment of the present invention, the outer wall of the spiral ground pile body is provided with a thread, and the spiral ground pile body is provided with a threaded sliding circular plate through a threaded connection, and the threaded sliding circular plate is arranged between the fixed limiting circular plate and the supporting hollow movable plate, and the outer wall of the threaded sliding circular plate is provided with a plurality of groups of locking connecting ropes, and the locking connecting ropes are elastic, and the other end of the locking connecting ropes is arranged on the top surface of the supporting hollow movable plate, and the supporting hollow movable plate moves up and down on the surface of the spiral ground pile body relative to the threaded sliding circular plate through the locking connecting ropes.

[0010] In one embodiment of the present invention, a plurality of groups of L-shaped traction rods are provided on the bottom surface of the supporting hollow movable plate, the lower end of the L-shaped traction rod is fixedly connected with a bottom gripping circular plate, the bottom surface of the bottom gripping circular plate is fixedly connected with a force support plate, the inner walls of the bottom gripping circular plate and the force support plate are not in contact with the outer wall of the spiral pile body, and the size of the force support plate is smaller than that of the bottom gripping circular plate.

[0011] In one embodiment of the present invention, a ground pile drill bit is provided at the bottom of the spiral ground pile body. The shape of the ground pile drill bit is set to be an inverted triangle, and the tip of the ground pile drill bit is provided with a wear-resistant layer.

[0012] In one embodiment of the present invention, a top plate is provided on the top surface of the screw pile body, and the top plate is detachably connected to the top surface of the screw pile body. The top plate is circular in shape, and the diameter of the top plate is larger than the diameter of the screw pile body.

[0013] In one embodiment of the present invention, a liquid storage tank is provided at the top of the inner cavity of the spiral ground pile body. The shape of the liquid storage tank is set to be rectangular. The long side dimension of the liquid storage tank is smaller than the diameter dimension of the spiral ground pile body. An anti-rust liquid delivery pipe is inserted at the bottom end of the liquid storage tank. The anti-rust liquid delivery pipe is elastic, and the other end of the anti-rust liquid delivery pipe is inserted into the interior of the threaded sliding circular plate.

[0014] In one embodiment of the present invention, a fixed groove is provided inside the threaded sliding circular plate, a filter screen is provided inside the fixed groove, one end of the anti-rust liquid delivery pipe is arranged above the filter screen, and a plurality of groups of liquid dripping holes are provided on the bottom surface of the threaded sliding circular plate, and the shape of the liquid dripping holes is set to be a circular hole type.

[0015] In one embodiment of the present invention, the liquid storage tank stores rust-proof liquid inside, and the rust-proof liquid is transported through the rust-proof liquid delivery pipe and falls from the liquid dripping hole to the outer wall of the screw pile body.

[0016] In one embodiment of the present invention, rotating plates are provided at both ends of the auxiliary rotating rod, the rotating plates are arranged on the outside of the first connecting hinge rod and the second connecting hinge rod, and the shape of the rotating plates is set to be circular.

[0017] The beneficial effects of the technical solution of the present invention are:

[0018] By supporting the up and down movement of the hollow movable plate, the height of the photovoltaic bracket can be flexibly adjusted to meet various installation requirements. For example, in areas with uneven terrain, the photovoltaic panel can be kept at a suitable tilt angle and height to ensure the best light reception effect.

[0019] During the rotation of the first connecting hinge rod and the second connecting hinge rod, the circular rotating plate can evenly bear the forces from all directions, reduce stress concentration, and help improve the durability and reliability of the entire structure, ensuring that during long-term use, the rotational connection between the components can remain smooth and will not be damaged or stuck due to excessive local force.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A schematic diagram of the structure of a spiral pile of a fully composite photovoltaic support proposed in an embodiment of the present invention;

[0023] Figure 2 This is a front view of the spiral pile of the all-composite photovoltaic support proposed in an embodiment of the present invention;

[0024] Figure 3 A top view of a spiral ground pile of a fully composite photovoltaic support proposed in an embodiment of the present invention;

[0025] Figure 4 A side view of a spiral ground pile of an all-composite photovoltaic support proposed in an embodiment of the present invention;

[0026] Figure 5 for Figure 2 A cross-sectional view along the cutting line AA;

[0027] Figure 6 for Figure 3 A cross-sectional view along the cutting line BB;

[0028] Figure 7 for Figure 2 A cross-sectional view along the cutting line CC;

[0029] Figure 8 for Figure 4 A cross-sectional view along the cutting line DD;

[0030] Fig. 9 for Figure 6 A partial enlarged view of point Ⅰ in the middle.

[0031] In the figure: 1. spiral pile body; 2. fixed limit circular plate; 3. threaded sliding circular plate; 4. supporting hollow moving plate; 5. first connecting hinged rod; 6. second connecting hinged rod; 7. auxiliary rotating rod; 8. rotating plate; 9. locking connecting rope; 10. L-shaped traction rod; 11. bottom gripping circular plate; 12. force support plate; 13. pile drill bit; 14. top plate; 15. liquid storage tank; 16. anti-rust liquid delivery pipe; 17. fixed groove; 18. filter screen; 19. liquid dripping hole. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The following describes an all-composite photovoltaic support spiral pile according to an embodiment of the present invention with reference to the accompanying drawings.

[0034] like Figures 1 to 9As shown, an embodiment of the present invention provides a spiral ground pile of an all-composite photovoltaic support, a fixed limiting circular plate 2, a first connecting hinge rod 5 is arranged on both sides of the outer wall of the fixed limiting circular plate 2, a second connecting hinge rod 6 is arranged at one end of the first connecting hinge rod 5, an auxiliary rotating rod 7 is arranged between the first connecting hinge rod 5 and the second connecting hinge rod 6, the first connecting hinge rod 5 and the second connecting hinge rod 6 are rotatably connected through the auxiliary rotating rod 7, and rotating plates 8 are arranged at both ends of the auxiliary rotating rod 7, and the rotating plates 8 are arranged on the outer sides of the first connecting hinge rod 5 and the second connecting hinge rod 6, and the shape of the rotating plates 8 is set to be circular; the supporting space The central moving plate 4 supports the hollow moving plate 4 and is arranged below the fixed limiting circular plate 2. A circular through hole is provided in the middle of the supporting hollow moving plate 4, and a spiral pile body 1 is provided inside the circular through hole. The inner wall of the supporting hollow moving plate 4 and the outer wall of the spiral pile body 1 do not contact each other. The inner wall of the fixed limiting circular plate 2 and the outer wall of the spiral pile body 1 are fixedly connected to each other. The other end of the second connecting hinged rod 6 is fixedly connected to the outer wall of the supporting hollow moving plate 4. The supporting hollow moving plate 4 moves up and down relative to the spiral pile body 1 through the rotational connection between the first connecting hinged rod 5 and the second connecting hinged rod 6.

[0035] In a specific application of the embodiment of the present invention, the first connecting hinge rod 5, the second connecting hinge rod 6 and the auxiliary rotating rod 7 constitute a rotating connection system. When an external force acts on the supporting hollow movable plate 4 (for example, adjusting the height when installing a photovoltaic bracket or structural adaptive adjustment due to external environmental factors), the first connecting hinge rod 5 and the second connecting hinge rod 6 are connected to each other via the rotating connection of the auxiliary rotating rod 7 to achieve relative rotation. Since the other end of the second connecting hinge rod 6 is fixedly connected to the outer wall of the supporting hollow movable plate 4, this rotation will be converted into the up and down movement of the supporting hollow movable plate 4 relative to the spiral pile body 1.

[0036] During the movement of the entire structure, when the supporting hollow moving plate 4 is subjected to an upward or downward force, this force will be transmitted to the rotating structure composed of the first connecting hinge rod 5 and the auxiliary rotating rod 7 through the second connecting hinge rod 6. The rotating plate 8, as a connecting component at both ends of the auxiliary rotating rod 7, plays a role in dispersing the force, and evenly distributes the force at the connection parts with the first connecting hinge rod 5 and the second connecting hinge rod 6. At the same time, the fixed connection of the fixed limiting circular plate 2 to the spiral pile body 1 also provides a stable foundation for the transmission and balance of the entire force. If there is no stabilizing effect of the fixed limiting circular plate 2, during the movement of the supporting hollow moving plate 4, the spiral pile body 1 may be subjected to lateral force and tilt or displace, thereby affecting the stability of the entire photovoltaic support.

[0037] When the height of the supporting hollow movable plate 4 needs to be adjusted, since the first connecting hinge rod 5 and the second connecting hinge rod 6 can be rotated through the auxiliary rotating rod 7, and the other end of the second connecting hinge rod 6 is fixed on the outer wall of the supporting hollow movable plate 4, the supporting hollow movable plate 4 can move up and down along the spiral pile body 1. In this process, the fixed limiting circular plate 2 plays a limiting role. It is fixed on the spiral pile body 1 and limits the initial position of the first connecting hinge rod 5, thereby ensuring the stability and controllability of the entire structure during the movement.

[0038] When the photovoltaic bracket is subjected to gravity from above or external wind force and other forces, these forces first act on the supporting hollow movable plate 4, and the supporting hollow movable plate 4 will transfer the force to the connecting structure of the first connecting hinged rod 5 and the auxiliary rotating rod 7 through the second connecting hinged rod 6, and then transfer it to the spiral pile body 1 through the fixed limiting circular plate 2. The spiral pile body 1 transfers the force to the underground soil, thereby achieving force balance of the entire structure and ensuring the stability of the photovoltaic bracket.

[0039] In a possible embodiment, the outer wall of the spiral pile body 1 is provided with a thread, and the spiral pile body 1 is provided with a threaded sliding circular plate 3 through a threaded connection. The threaded sliding circular plate 3 is arranged between the fixed limiting circular plate 2 and the supporting hollow movable plate 4, and the outer wall of the threaded sliding circular plate 3 is provided with a plurality of groups of locking connecting ropes 9, and the locking connecting ropes 9 are elastic. The other end of the locking connecting ropes 9 is arranged on the top surface of the supporting hollow movable plate 4, and the supporting hollow movable plate 4 moves up and down on the surface of the spiral pile body 1 relative to the threaded sliding circular plate 3 through the locking connecting ropes 9; the bottom surface of the supporting hollow movable plate 4 is provided with a plurality of groups of L-shaped traction rods 10, and the lower end of the L-shaped traction rod 10 is fixedly connected with a bottom gripping circular plate 11, and the bottom surface of the bottom gripping circular plate 11 is fixedly connected with a force support plate 12, and the inner walls of the bottom gripping circular plate 11 and the force support plate 12 do not contact each other with the outer wall of the spiral pile body 1, and the size of the force support plate 12 is smaller than the size of the bottom gripping circular plate 11.

[0040] In a specific application of the embodiment of the present invention, the spiral pile body 1 is screwed into the ground. During the screwing process, since the threaded sliding circular plate 3 is threadedly connected to the spiral pile body 1, it will move downward as the spiral pile body 1 is screwed in (assuming that the spiral pile is screwed vertically downward into the ground). When the spiral pile body 1 reaches a certain installation depth, the supporting hollow moving plate 4 is connected to the threaded sliding circular plate 3 by a locking connecting rope 9, and the locking connecting rope 9 is elastic. The supporting hollow moving plate 4 will move downward relative to the threaded sliding circular plate 3 under the action of its own gravity and the locking connecting rope 9 until the bottom gripping circular plate 11 and the force-bearing support plate 12 touch the ground.

[0041] During normal use, if the ground sinks or is acted upon by external forces (such as lateral forces generated by wind acting on the photovoltaic bracket), the supporting hollow movable plate 4 can move up and down relative to the threaded sliding circular plate 3 within the elastic range of the locking connecting rope 9. For example, when the ground sinks, the supporting hollow movable plate 4 will drop with the sinking of the ground, and the locking connecting rope 9 will be stretched. The elasticity of the locking connecting rope 9 will buffer this displacement change, while the bottom gripping circular plate 11 and the force-bearing support plate 12 will always keep in contact with the ground and reasonably disperse the force.

[0042] When subjected to lateral force, the bottom gripping circular plate 11 and the force supporting plate 12 will transfer the force to the ground. Since the size of the force supporting plate 12 is smaller than that of the bottom gripping circular plate 11, the force will gradually concentrate from the larger area of ​​the bottom gripping circular plate 11 to the smaller area of ​​the force supporting plate 12 and be transferred to the ground, thereby ensuring the overall stability of the spiral pile.

[0043] In a possible embodiment, a ground pile drill bit 13 is provided at the bottom of the spiral ground pile body 1, and the shape of the ground pile drill bit 13 is set to be an inverted triangle, and the tip of the ground pile drill bit 13 is provided with a wear-resistant layer; a top plate 14 is provided on the top surface of the spiral ground pile body 1, and the top plate 14 is detachably connected to the top surface of the spiral ground pile body 1, and the shape of the top plate 14 is set to be circular, and the diameter of the top plate 14 is larger than the diameter of the spiral ground pile body 1.

[0044] In a specific application of an embodiment of the present invention, when installing this all-composite photovoltaic support spiral ground pile, firstly, downward pressure is applied to the spiral ground pile body 1 through a mechanical device (such as a pile driver, etc.). The inverted triangle shape of the ground pile drill bit 13 begins to cut into the ground. Due to its special shape and structure, the drill bit can gradually break through the soil and penetrate deep into the ground. During the drilling process, the wear-resistant layer at the tip of the ground pile drill bit 13 protects the drill bit from wear by hard objects in the soil, allowing the drill bit to continue to drill effectively. As the drill bit continues to go deeper, the spiral structure on the spiral ground pile body 1 will further squeeze the soil around to form a relatively stable hole, and the spiral structure can also increase the friction between the ground pile and the soil, thereby improving the stability of the ground pile underground.

[0045] After the spiral pile is installed to a suitable depth, the top plate 14 is installed on the top surface of the spiral pile body 1. When the photovoltaic bracket is installed on the top plate 14, the weight of the photovoltaic bracket and possible external forces (such as wind load, snow load, etc.) will be transmitted to the spiral pile body 1 through the top plate 14. Due to the large diameter and circular shape of the top plate 14, these forces can be evenly dispersed to the spiral pile body 1, and the spiral pile body 1 then transmits the force to the underground soil. The friction force of the soil on the spiral pile and the interaction force between the pile and the soil can resist these external forces, thereby ensuring the stability of the photovoltaic bracket during use.

[0046] In a possible embodiment, a liquid storage tank 15 is provided at the top of the inner cavity of the spiral pile body 1, and anti-rust liquid is stored in the liquid storage tank 15. The shape of the liquid storage tank 15 is set to be rectangular, and the long side dimension of the liquid storage tank 15 is smaller than the diameter dimension of the spiral pile body 1. An anti-rust liquid delivery pipe 16 is inserted at the bottom end of the liquid storage tank 15. The anti-rust liquid delivery pipe 16 is elastic, and the other end of the anti-rust liquid delivery pipe 16 is inserted into the inside of the threaded sliding circular plate 3; a fixing groove 17 is opened inside the threaded sliding circular plate 3, and a filter screen 18 is provided inside the fixing groove 17. One end of the anti-rust liquid delivery pipe 16 is arranged above the filter screen 18, and a plurality of groups of liquid dripping holes 19 are opened on the bottom surface of the threaded sliding circular plate 3, and the shape of the liquid dripping holes 19 is set to be circular.

[0047] In a specific application of the embodiment of the present invention, in the initial state, the rust-proof liquid is stored in the liquid storage tank 15. Since the liquid storage tank 15 is located at the top of the inner cavity of the spiral pile body 1, the rust-proof liquid has a tendency to flow downward under the action of gravity. When rust-proof work is required (for example, regular rust-proofing or when the humidity inside the pile is detected to be high), since the rust-proof liquid delivery pipe 16 is elastic, it can adapt to the structural changes and different working conditions inside the spiral pile. The rust-proof liquid in the liquid storage tank 15 is transmitted to the threaded sliding circular plate 3 through the rust-proof liquid delivery pipe 16 under the action of gravity or possible slight pressure (such as a slight pressure difference caused by temperature changes, etc.).

[0048] When the rust-proof liquid reaches the fixed groove 17 inside the threaded sliding circular plate 3, it is first filtered through the filter screen 18. The filtered rust-proof liquid is on the bottom surface of the threaded sliding circular plate 3. Due to the effect of gravity, the rust-proof liquid will drip through a plurality of groups of circular liquid drip holes 19 to the parts inside the spiral pile that need rust prevention, thereby achieving effective rust prevention of the inside of the spiral pile.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A fully composite photovoltaic support spiral pile, characterized in that: include: A fixed limiting circular plate (2), wherein first connecting hinge rods (5) are provided on both sides of an outer wall of the fixed limiting circular plate (2), a second connecting hinge rod (6) is provided at one end of the first connecting hinge rod (5), an auxiliary rotating rod (7) is provided between the first connecting hinge rod (5) and the second connecting hinge rod (6), and the first connecting hinge rod (5) and the second connecting hinge rod (6) are rotatably connected via the auxiliary rotating rod (7); A supporting hollow movable plate (4), wherein the supporting hollow movable plate (4) is arranged below the fixed limiting circular plate (2), a circular through hole is arranged in the middle of the supporting hollow movable plate (4), a spiral pile body (1) is arranged inside the circular through hole, an inner wall of the supporting hollow movable plate (4) and an outer wall of the spiral pile body (1) are not in contact with each other, the inner wall of the fixed limiting circular plate (2) and the outer wall of the spiral pile body (1) are fixedly connected to each other, the other end of the second connecting hinged rod (6) is fixedly connected to the outer wall of the supporting hollow movable plate (4), and the supporting hollow movable plate (4) moves up and down relative to the spiral pile body (1) through the rotational connection between the first connecting hinged rod (5) and the second connecting hinged rod (6).

2. The all-composite photovoltaic support spiral pile according to claim 1, characterized in that: The outer wall of the spiral pile body (1) is provided with a thread, and the spiral pile body (1) is provided with a threaded sliding circular plate (3) through a threaded connection. The threaded sliding circular plate (3) is arranged between the fixed limiting circular plate (2) and the supporting hollow movable plate (4). The outer wall of the threaded sliding circular plate (3) is provided with a plurality of groups of locking connecting ropes (9), and the locking connecting ropes (9) are elastic. The other end of the locking connecting rope (9) is arranged on the top surface of the supporting hollow movable plate (4). The supporting hollow movable plate (4) moves up and down on the surface of the spiral pile body (1) relative to the threaded sliding circular plate (3) through the locking connecting rope (9).

3. The all-composite photovoltaic support spiral pile according to claim 1, characterized in that: The bottom surface of the supporting hollow movable plate (4) is provided with a plurality of groups of L-shaped traction rods (10), the lower end of the L-shaped traction rod (10) is fixedly connected to a bottom ground-gripping circular plate (11), the bottom surface of the bottom ground-gripping circular plate (11) is fixedly connected to a force-bearing support plate (12), the inner walls of the bottom ground-gripping circular plate (11) and the force-bearing support plate (12) are not in contact with the outer wall of the spiral pile body (1), and the size of the force-bearing support plate (12) is smaller than the size of the bottom ground-gripping circular plate (11).

4. The all-composite photovoltaic support spiral pile according to claim 1, characterized in that: A ground pile drill bit (13) is provided at the bottom of the spiral ground pile body (1); the shape of the ground pile drill bit (13) is set to be an inverted triangle; and the tip of the ground pile drill bit (13) is provided with a wear-resistant layer.

5. The all-composite photovoltaic support spiral pile according to claim 1, characterized in that: The top surface of the spiral ground pile body (1) is provided with a top plate (14), and the top plate (14) is detachably connected to the top surface of the spiral ground pile body (1). The shape of the top plate (14) is set to be circular, and the diameter of the top plate (14) is larger than the diameter of the spiral ground pile body (1).

6. The all-composite photovoltaic support spiral pile according to claim 2, characterized in that: A liquid storage tank (15) is provided at the top of the inner cavity of the spiral pile body (1). The shape of the liquid storage tank (15) is set to be rectangular. The long side dimension of the liquid storage tank (15) is smaller than the diameter dimension of the spiral pile body (1). An anti-rust liquid delivery pipe (16) is inserted at the bottom end of the liquid storage tank (15). The anti-rust liquid delivery pipe (16) is elastic. The other end of the anti-rust liquid delivery pipe (16) is inserted into the interior of the threaded sliding circular plate (3).

7. The all-composite photovoltaic support spiral pile according to claim 6, characterized in that: A fixing groove (17) is provided inside the threaded sliding circular plate (3), a filter screen (18) is provided inside the fixing groove (17), one end of the anti-rust liquid delivery pipe (16) is arranged above the filter screen (18), and a plurality of groups of liquid dripping holes (19) are provided on the bottom surface of the threaded sliding circular plate (3), and the shape of the liquid dripping holes (19) is set to be a circular hole type.

8. The all-composite photovoltaic support spiral pile according to claim 6, characterized in that: The liquid storage tank (15) stores rust-proof liquid inside. The rust-proof liquid is transported through the rust-proof liquid delivery pipe (16) and falls from the liquid dripping hole (19) to the outer wall of the screw pile body (1).

9. The all-composite photovoltaic support spiral pile according to claim 1, characterized in that: Rotating plates (8) are provided at both ends of the auxiliary rotating rod (7), and the rotating plates (8) are arranged on the outside of the first connecting hinge rod (5) and the second connecting hinge rod (6), and the shape of the rotating plates (8) is set to be circular.

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