A pile body reinforcing structure of a photovoltaic cast-in-place pile

Abstract

This invention relates to the field of foundation reinforcement technology, and more particularly to a pile reinforcement structure for photovoltaic cast-in-place piles. The structure includes a pile cylinder and a reinforcing cage welded to the outer wall of the pile cylinder. An mounting cylinder for connection to photovoltaic legs is located above the pile cylinder. A top cylinder is fixedly connected to the top of the pile cylinder, and an adjustment structure for adjusting the position of the mounting cylinder is provided on the top cylinder. A T-shaped support ring is fixedly connected to the inner side of the top cylinder, and a threaded rod is threaded through the top of the T-shaped support ring. A hexagonal block is fixedly connected to the top of the threaded rod. Through the reinforcement structure, this invention allows multiple spikes to be driven upwards and inserted into the surrounding soil after the cast-in-place pile is placed in the pouring pit, providing stronger support for the pile body. Simultaneously, the upwardly inserted spikes provide better pull-out resistance because they have a larger contact area with the soil and greater friction with the soil, which helps resist wind and other forces that may pull the pile out.

Description

Technical Field

[0001] This invention relates to the field of foundation reinforcement technology, and in particular to a pile reinforcement structure for photovoltaic cast-in-place piles. Background Technology

[0002] Photovoltaic piles are an important foundational structure used to support solar photovoltaic panels. They are widely used in the field of solar power generation. Their main purpose is to provide stable support for photovoltaic panels under various terrain conditions, ensuring that the photovoltaic panels can withstand the influence of external environmental factors such as wind and snow loads, while maintaining the correct installation angle to maximize the absorption efficiency of solar energy. Therefore, the reinforcement structure of photovoltaic piles is crucial to the stability and safety of the entire photovoltaic power generation system.

[0003] The prior art discloses a photovoltaic support grouting pile reinforcement device with the publication number CN222435376U. It uses two pairs of threaded rods to merge a pair of semi-cylinders, so that the buffer plate is in contact with the grouting pile. When the grouting pile vibrates, the force is transmitted to the semi-cylinders through the buffer plate, which can play a reinforcement role. The reinforcement device is easy to install and disassemble, which is beneficial to practical use.

[0004] While the aforementioned cast-in-place piles enhance the strength of the connection between piles, some defects still exist in actual use. Because existing photovoltaic cast-in-place pile reinforcement structures are mainly installed using reinforced cage casting, this method, while providing necessary reinforcement, suffers from insufficient interlocking and friction between the pile and the soil due to the lack of a direct contact structure between the reinforced cage and the surrounding soil. This reduces the pile's pull-out resistance. To compensate for this defect, engineering practice typically employs methods such as increasing the length of the reinforced cage and increasing the concrete pouring depth to improve pull-out resistance. Although this method can improve pile stability to some extent, it also brings a series of problems, including increased material usage, higher construction costs, longer construction periods, and the inability to meet pull-out resistance requirements under certain geological conditions.

[0005] Therefore, a pile reinforcement structure for photovoltaic cast-in-place piles is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a reinforcement structure for photovoltaic cast-in-place piles.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a pile body reinforcement structure for photovoltaic cast-in-place piles, including a pile cylinder and a steel cage welded to the outer wall of the pile cylinder. An installation cylinder for connecting with photovoltaic support legs is provided above the pile cylinder. A top cylinder is fixedly connected to the top of the pile cylinder. An adjustment structure for adjusting the position of the installation cylinder is provided on the top cylinder. A T-shaped support ring is fixedly connected to the inner side of the top cylinder. A screw is threaded through the top of the T-shaped support ring. A hexagonal block is fixedly connected to the top of the screw. A sliding cylinder is fixedly connected to the inner side of the pile cylinder. A storage frame is fixedly connected to the bottom end of the sliding cylinder. A pair of upper inclined grooves are opened on the front side of the storage frame. A lower inclined groove is opened on the rear side of the storage frame. A slider is slidably connected to the inner side of both the upper and lower inclined grooves. A spike is provided on the side wall of each slider. A reinforcement structure for driving multiple spikes to extend obliquely upward and insert into the surrounding soil is provided inside the storage frame.

[0008] The reinforcement structure includes pull ropes, rectangular plates are fixedly connected to the side walls of the sliders, the thorns are rotatably connected to the side walls of the rectangular plates, upper guide rollers are rotatably connected to the top ends of the upper and lower inclined grooves, four pull ropes are provided, and all four pull ropes are fixedly connected to the side walls of the sliders, a pair of sliding plates are slidably connected to the inside of the storage frame, the other end of each pull rope passes through the upper guide roller and is fixedly connected to the top of the sliding plate, a connecting rod is fixedly connected between the sliding plates, an upper rod is rotatably connected to the bottom end of the screw, and the bottom end of the upper rod is fixedly connected to the top of one of the sliding plates, and a limiting mechanism for limiting the position of the thorns is also provided.

[0009] In the above technical solution, the inner side of the storage frame is rotatably connected to the lower guide roller relative to the middle position of the upper and lower inclined grooves, and the pull rope passes through the outer wall of the lower guide roller.

[0010] In the above technical solution, the limiting mechanism further includes a limiting block, and the size of the limiting block is the same as the size of the upper inclined groove and the lower inclined groove. Four limiting blocks are provided, and all four limiting blocks are located next to the piercing. A sliding rod is fixedly connected to the side wall of each limiting block. The sliding rod passes through the side wall of the piercing. An upper spring is fixedly connected between the outer wall of the sliding rod and the side wall of the piercing.

[0011] In the above technical solution, the rectangular plate has an arc-shaped groove on its side wall, the piercing side wall is fixedly connected to a guide block, and the guide block is slidably connected to the inside of the arc-shaped groove. A lower spring is fixedly connected between the side wall of the arc-shaped groove and the side wall of the guide block.

[0012] In the above technical solution, the upper and lower inclined grooves are arranged in opposite directions, the tip of the piercing is set as a spike, and a pair of openings for flipping the piercing are provided on the outer wall of the pile cylinder.

[0013] In the above technical solution, the adjustment structure further includes an adjustment ring, which is fixedly connected to the inner side of the mounting cylinder. A limiting ring is fixedly connected to the outer wall of the T-shaped support ring, and a gap adapted to the adjustment ring is left between the limiting ring and the top of the top cylinder. The adjustment ring is inserted between the limiting ring and the top cylinder. Three nuts are welded to the outer wall of the mounting cylinder, and a pair of insertion holes are opened through the outer wall of the mounting cylinder.

[0014] In the above technical solution, three positioning bolts are further provided through the threaded connection on the outer wall of the mounting cylinder, and the three positioning bolts are equidistantly distributed on the outer wall of the mounting cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting up a reinforcement structure, this invention enables the use of an electric gun to drive the reinforcement structure after the cast-in-place pile is placed in the pouring pit, so that multiple spikes are inserted into the surrounding soil at an upward tilt, providing stronger support for the pile body. At the same time, the upward tilting spikes can provide better pull-out resistance because they have a larger contact area with the soil and greater friction with the soil, which helps to resist wind and other forces that may pull out the pile body.

[0017] 2. The piercings of this invention can be stored during transportation to avoid affecting the transportation of the pile due to the increased overall volume. At the same time, through the setting of the adjustment mechanism, the installation position of the installation cylinder can be flexibly adjusted according to actual needs after the pile is cast and fixed, ensuring the accurate installation of the cast-in-place pile and avoiding the phenomenon of being unable to adjust due to the insertion of the piercings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the front of the filling pile of the present invention;

[0019] Figure 2 This is a schematic diagram of the frontal full-section three-dimensional structure of the cast-in-place pile of the present invention;

[0020] Figure 3 Appendix of the present invention Figure 2 A magnified view of the structure at point A in the middle;

[0021] Figure 4 Appendix of the present invention Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0022] Figure 5 This is a partial three-dimensional structural diagram of the screw, slide, and storage frame of the present invention.

[0023] Figure 6 This is a full-section three-dimensional structural diagram of the mounting cylinder of the present invention.

[0024] Figure 7 This is a schematic diagram of the partial external structure of the piercing spike, pull rope, and storage frame of the present invention.

[0025] Figure 8 This is a schematic diagram of the partial half-section three-dimensional structure of the rectangular plate and the piercing separation of the present invention.

[0026] In the diagram: 1. Pit; 2. Reinforcing cage; 3. Installation cylinder; 4. Top cylinder; 5. T-shaped support ring; 6. Screw; 7. Hexagonal block; 8. Sliding cylinder; 9. Storage frame; 10. Upper inclined groove; 11. Lower inclined groove; 12. Sliding block; 13. Spike; 14. Pull rope; 15. Rectangular plate; 16. Upper guide roller; 17. Sliding plate; 18. Connecting rod; 19. Upper rod; 20. Lower guide roller; 21. Limiting block; 22. Sliding rod; 23. Upper spring; 24. Arc groove; 25. Guide block; 26. Lower spring; 27. Adjusting ring; 28. Limiting ring; 29. ​​Nut; 30. Insertion hole; 31. Positioning bolt; 32. Opening. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0029] In practical use, it has been found that the existing photovoltaic cast-in-place pile reinforcement structure is mainly installed by casting a steel cage 2. Although this method can provide the necessary reinforcement, the lack of a structure on the steel cage 2 that directly contacts the surrounding soil results in insufficient interlocking and friction between the pile and the soil, thus reducing the pull-out performance of the pile. To compensate for this deficiency, engineering practice usually adopts the method of increasing the length of the steel cage 2 and increasing the concrete pouring depth to improve the pull-out performance. Although this method can improve the stability of the pile to a certain extent, it also brings a series of problems, including increased material usage, increased construction costs, extended construction period, and may still not meet the pull-out performance requirements under certain geological conditions. To solve the above problems, the following structure is invented.

[0030] like Figures 1-8The diagram illustrates a reinforcement structure for a photovoltaic cast-in-place pile, comprising a pile cylinder 1 and a reinforcing cage 2 welded to the outer wall of the pile cylinder 1. An mounting cylinder 3 for connecting to a photovoltaic support leg is located above the pile cylinder 1. A top cylinder 4 is fixedly connected to the top of the pile cylinder 1. An adjustment structure for adjusting the position of the mounting cylinder 3 is provided on the top cylinder 4. A T-shaped support ring 5 is fixedly connected to the inner side of the top cylinder 4. A threaded rod 6 is threaded through the top of the T-shaped support ring 5. (It should be noted that since the threaded rod 6 is later solidified in the concrete and does not need to be removed, therefore...) To save costs, the screw 6 is made of plastic. A hexagonal block 7 is fixedly connected to the top of the screw 6. A sliding cylinder 8 is fixedly connected to the inside of the pile cylinder 1. A storage frame 9 is fixedly connected to the bottom of the sliding cylinder 8. A pair of upper inclined grooves 10 are opened on the front side of the storage frame 9, and a lower inclined groove 11 is opened on the rear side of the storage frame 9. A slider 12 is slidably connected to the inside of both the upper inclined groove 10 and the lower inclined groove 11. The side walls of the slider 12 are provided with spikes 13. The storage frame 9 is provided with a reinforcement structure for driving multiple spikes 13 to extend obliquely upward and insert into the surrounding soil.

[0031] The reinforcement structure includes pull ropes 14, rectangular plates 15 fixedly connected to the side walls of sliders 12, spikes 13 rotatably connected to the side walls of rectangular plates 15, upper guide rollers 16 rotatably connected to the top ends of upper and lower inclined grooves 10 and 11, four pull ropes 14 fixedly connected to the side walls of sliders 12, and a pair of sliding plates 17 slidably connected to the inside of the storage frame 9. The other ends of the pull ropes 14 pass through the upper guide rollers 16 and are fixedly connected to the top of the sliding plates 17. The setting of 6 can provide guidance for the sliding direction of the pull rope 14, ensuring that the pull rope 14 moves along the specified path and can pull the slider 12 to slide inside the upper inclined groove 10 or the lower inclined groove 11, so that the spike 13 can be quickly inserted into the surrounding soil. The connecting rod 18 is fixedly connected between the slide plates 17, and the bottom end of the screw 6 is rotatably connected to the upper rod 19, and the bottom end of the upper rod 19 is fixedly connected to the top of one of the slide plates 17. A limiting mechanism is also provided to limit the position of the spike 13.

[0032] The inner side of the storage frame 9 is rotatably connected to the lower guide roller 20 relative to the middle position of the upper inclined groove 10 and the lower inclined groove 11, and the pull rope 14 passes through the outer wall of the lower guide roller 20. The lower guide roller 20 can further guide the sliding direction of the pull rope 14, ensuring that the pull rope 14 moves along the designated path.

[0033] During the installation of photovoltaic cast-in-place piles, holes are first drilled in the designated ground, and a baseline is drawn (to facilitate subsequent adjustment of the installation position of the cast-in-place piles and ensure that multiple cast-in-place piles are on the same horizontal line). Then, the insertion pins 13 on the cast-in-place piles are opened, and the cast-in-place piles are placed into the grouting pit, with the reinforcing cage 2 facing downwards (at this time, the installation cylinder 3 needs to be aligned with the baseline). At this point, an electric gun with a sleeve can be used to drive the hexagonal block 7 to rotate, which simultaneously drives the screw 6 to move downwards in a spiral motion. This, in turn, pushes the sliding plate 17 downwards in the storage frame 9 via the upper rod 19. When multiple ropes 14 are pulled downwards, the other end of the ropes 14 will pull the slider 12 to slide in the upper inclined groove 10 and the lower inclined groove 11 under the guidance of the upper guide roller 16 and the lower guide roller 20. At the same time, the rectangular plate 15 and the spike 13 will slide obliquely upwards, so that the spike 13 is inserted obliquely into the surrounding soil. Then the concrete can be poured into the pouring pit (it should be noted that the depth of the pouring pit is equal to the length of the pile cylinder 1 and the steel cage 2. After the cast-in-place pile is placed, the installation cylinder 3 is exposed above the ground), thereby realizing the reinforcement pouring of the photovoltaic cast-in-place pile.

[0034] In summary, through the design of the above structure, after the cast-in-place pile is placed in the pouring pit, the electric gun can be used to drive the reinforcement structure, so that multiple spikes 13 are inserted into the surrounding soil at an upward angle, providing stronger support for the cast-in-place pile. At the same time, the upwardly angled spikes 13 can provide better pull-out resistance because they have a larger contact area with the soil and greater friction with the soil, which helps to resist wind and other forces that may pull out the pile.

[0035] Based on the above embodiments, it was found during use that since the piercing 13 extends out of the reinforcing cage 2 after it opens, if the piercing 13 cannot be retracted, the overall volume of the cast-in-place pile will increase, making it inconvenient to transport. To solve the above problem, the above structure has been further improved.

[0036] The limiting mechanism includes a limiting block 21, and the size of the limiting block 21 is the same as that of the upper inclined groove 10 and the lower inclined groove 11. There are four limiting blocks 21, and all four limiting blocks 21 are located next to the piercing 13. A sliding rod 22 is fixedly connected to the side wall of each limiting block 21. The sliding rod 22 passes through the side wall of the piercing 13. An upper spring 23 is fixedly connected between the outer wall of the sliding rod 22 and the side wall of the piercing 13. With the setting of the limiting mechanism, when the piercing 13 is flipped to the side of the upper inclined groove 10 or the lower inclined groove 11, the compression on the limiting block 21 is released. Then, under the elastic force of the upper spring 23, the limiting block 21 is pushed into the upper inclined groove 10 or the lower inclined groove 11, which can limit and guide the sliding direction of the piercing 13.

[0037] The rectangular plate 15 has an arc-shaped groove 24 on its side wall. The guide block 25 is fixedly connected to the side wall of the spike 13, and the guide block 25 is slidably connected to the inside of the arc-shaped groove 24. A lower spring 26 is fixedly connected between the side wall of the arc-shaped groove 24 and the side wall of the guide block 25. The arc-shaped groove 24 and the guide block 25 can limit the flipping angle of the spike 13. At the same time, the lower spring 26 ensures that the spike 13 always remains vertical, avoiding tilting to both sides, increasing the overall volume of the cast-in-place pile, and affecting transportation.

[0038] The upper inclined groove 10 and the lower inclined groove 11 are set in opposite directions. By inserting them in two directions, the reinforcement effect on the cast-in-place pile can be ensured. The tip of the piercing 13 is set in a spike shape, which makes it easier for the piercing 13 to be inserted into the surrounding soil more smoothly. A pair of openings 32 for the piercing 13 to flip are provided on the outer wall of the pile tube 1. The openings 32 are set to avoid obstructing the normal flipping of the piercing 13.

[0039] Before the cast-in-place pile is placed into the grouting pit (at which time the upper spring 23 is in a compressed state), the corresponding piercing 13 needs to be swung to the side of the upper inclined groove 10 or the lower inclined groove 11. At the same time, the limiting block 21 is moved from the side wall of the receiving frame 9 to the side of the upper inclined groove 10 or the lower inclined groove 11, thereby relieving the pressure on the limiting block 21. Then, under the elastic force of the upper spring 23, the limiting block 21 and the sliding rod 22 are pushed to move, so that the limiting block 21 is stuck in the upper inclined groove 10 or the lower inclined groove 11. At the same time, the rotation of the piercing 13 will drive the guide block 25 to slide in the arc groove 24, while compressing the lower spring 26, thereby causing the piercing 13 to open to both sides, the same as the subsequent insertion angle, to ensure that the piercing 13 is inserted normally into the surrounding soil. At the same time, the limiting block 21 is stuck in the upper inclined groove 10 or the lower inclined groove 11, which can guide the sliding direction of the piercing 13, ensuring that the piercing 13 moves in the direction of installation of the upper inclined groove 10 or the lower inclined groove 11.

[0040] In summary, through the above structural design, the spike 13 can be stored during transportation, avoiding the impact on the transportation of the pile body due to the increased overall volume. At the same time, the spike 13 can be quickly opened before installation, improving the installation efficiency of the cast-in-place pile.

[0041] Based on the above embodiments, it was found during use that during the on-site installation of photovoltaic cast-in-place piles, many factors can cause the casting hole to deviate or the cast-in-place pile to deviate. If the cast-in-place pile after the insertion of the piercing 13 cannot be adjusted, it will affect the normal installation of the subsequent photovoltaic support. To solve the above problems, the above structure has been further improved.

[0042] The adjustment structure includes an adjustment ring 27, which is fixedly connected to the inner side of the mounting cylinder 3. A limit ring 28 is fixedly connected to the outer wall of the T-shaped support ring 5, and a gap is left between the limit ring 28 and the top of the top cylinder 4 to match the adjustment ring 27. The adjustment ring 27 is inserted between the limit ring 28 and the top cylinder 4. Three nuts 29 are welded to the outer wall of the mounting cylinder 3, and a pair of insertion holes 30 are opened through the outer wall of the mounting cylinder 3.

[0043] The outer wall of the mounting cylinder 3 is connected by three locating bolts 31 through threads. The three locating bolts 31 are equidistantly distributed on the outer wall of the mounting cylinder 3. The three locating bolts 31 can limit the position of the mounting cylinder 3 after adjustment, ensuring the stability of the photovoltaic installation.

[0044] When the piercing 13 on the cast-in-place pile is inserted into the surrounding soil for reinforcement, and the position of the installation cylinder 3 is deviated and needs to be adjusted, the position of the installation cylinder 3 can be moved freely. At this time, since the adjusting ring 27 is stuck between the limiting ring 28 and the top cylinder 4, the upward movement of the installation cylinder 3 will be restricted, ensuring the connection between the installation cylinder 3 and the pile cylinder 1. Then, the sleeve on the electric gun is used to drive one of the positioning bolts 31 to rotate, and the side end of the positioning bolt 31 is spirally moved to the outer wall of the top cylinder 4, ensuring that the position of the installation cylinder 3 is in the accurate installation position. Then, the other two positioning bolts 31 can be driven in sequence, so that the other two positioning bolts 31 abut against the outer wall of the top cylinder 4, thereby restricting the forward, backward, left and right movement of the installation cylinder 3, and thus locking the position of the installation cylinder 3, thus completing the adjustment.

[0045] In summary, the above structural design allows for flexible adjustment of the installation position of the installation cylinder 3 after the pile body is cast and fixed, based on actual needs, ensuring accurate installation of the cast-in-place pile and avoiding the inability to adjust due to the insertion of the piercing 13.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0047] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A pile reinforcement structure for a photovoltaic cast-in-place pile, comprising a pile cylinder (1) and a reinforcing cage (2) welded to the outer wall of the pile cylinder (1), characterized in that: The pile tube (1) is provided with an installation tube (3) for connecting to the photovoltaic support leg. The top of the pile tube (1) is fixedly connected to a top tube (4). The top tube (4) is provided with an adjustment structure for adjusting the position of the installation tube (3). A T-shaped support ring (5) is fixedly connected to the inside of the top tube (4). A screw (6) is threaded through the top of the T-shaped support ring (5). A hexagonal block (7) is fixedly connected to the top of the screw (6). A sliding cylinder is fixedly connected to the inside of the pile tube (1). (8) A storage frame (9) is fixedly connected to the bottom end of the sliding cylinder (8). A pair of upper inclined grooves (10) are opened on the front side of the storage frame (9), and a lower inclined groove (11) is opened on the rear side of the storage frame (9). A slider (12) is slidably connected to the inner side of the upper inclined groove (10) and the lower inclined groove (11). A spike (13) is provided on the side wall of the slider (12). A reinforcement structure for driving multiple spikes (13) to extend obliquely upward and insert into the surrounding soil is provided inside the storage frame (9). The reinforcement structure includes a pull rope (14), a rectangular plate (15) is fixedly connected to the side wall of the slider (12), the piercings (13) are rotatably connected to the side wall of the rectangular plate (15), the top of the upper inclined groove (10) and the lower inclined groove (11) are rotatably connected to the upper guide roller (16), four pull ropes (14) are provided, one end of each of the four pull ropes (14) is fixedly connected to the side wall of the slider (12), a pair of slide plates (17) are slidably connected to the inside of the storage frame (9), the other end of each pull rope (14) passes through the upper guide roller (16) and is fixedly connected to the top of the slide plate (17), a connecting rod (18) is fixedly connected between the slide plates (17), the bottom end of the screw (6) is rotatably connected to the upper rod (19), and the bottom end of the upper rod (19) is fixedly connected to the top of one of the slide plates (17), and a limiting mechanism for limiting the position of the piercings (13) is also provided.

2. The pile reinforcement structure for photovoltaic cast-in-place piles according to claim 1, characterized in that: The inner side of the storage frame (9) is rotatably connected to the lower guide roller (20) relative to the middle position of the upper inclined groove (10) and the lower inclined groove (11), and the pull rope (14) passes through the outer wall of the lower guide roller (20).

3. The pile reinforcement structure for photovoltaic cast-in-place piles according to claim 1, characterized in that: The limiting mechanism includes a limiting block (21), and the size of the limiting block (21) is the same as that of the upper inclined groove (10) and the lower inclined groove (11). There are four limiting blocks (21), and all four limiting blocks (21) are located next to the piercing (13). Each limiting block (21) has a sliding rod (22) fixedly connected to its side wall. The sliding rod (22) passes through the side wall of the piercing (13). An upper spring (23) is fixedly connected between the outer wall of the sliding rod (22) and the side wall of the piercing (13).

4. The pile reinforcement structure for photovoltaic cast-in-place piles according to claim 1, characterized in that: The rectangular plate (15) has an arc-shaped groove (24) on its side wall. The side wall of the piercing (13) is fixedly connected to a guide block (25), and the guide block (25) is slidably connected to the inside of the arc-shaped groove (24). A lower spring (26) is fixedly connected between the side wall of the arc-shaped groove (24) and the side wall of the guide block (25).

5. The pile reinforcement structure for photovoltaic cast-in-place piles according to claim 1, characterized in that: The upper inclined groove (10) and the lower inclined groove (11) are arranged in opposite directions, the top of the piercing (13) is set in the shape of a spike, and a pair of openings (32) for the piercing (13) to flip are provided on the outer wall of the pile cylinder (1).

6. The pile body reinforcement structure for photovoltaic cast-in-place piles according to claim 1, characterized in that: The adjustment structure includes an adjustment ring (27), which is fixedly connected to the inner side of the mounting cylinder (3). A limiting ring (28) is fixedly connected to the outer wall of the T-shaped support ring (5), and a gap is left between the limiting ring (28) and the top of the top cylinder (4) to match the adjustment ring (27). The adjustment ring (27) is inserted between the limiting ring (28) and the top cylinder (4). Three nuts (29) are welded to the outer wall of the mounting cylinder (3), and a pair of insertion holes (30) are opened through the outer wall of the mounting cylinder (3).

7. The pile reinforcement structure for a photovoltaic cast-in-place pile according to claim 6, characterized in that: The outer wall of the mounting cylinder (3) is threaded with three positioning bolts (31), and the three positioning bolts (31) are equidistantly distributed on the outer wall of the mounting cylinder (3).

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