High-stability photovoltaic support screw pile

Abstract

The application discloses a high-stability photovoltaic support spiral pile, relates to the technical field of photovoltaic support spiral piles, and comprises a pile body, a spiral plate is sleeved outside the pile body, a splicing extension and sand locking anchoring mechanism is arranged at the top end of the pile body, the splicing extension and sand locking anchoring mechanism comprises an extension rod, the extension rod is installed at the top end of the pile body, a butt joint cylinder is clamped at the bottom end of the extension rod, and a limiting sleeve is sleeved outside the extension rod, the structure of the application is scientific and reasonable, safe and convenient to use, the splicing extension and sand locking anchoring mechanism is arranged, the butt joint cylinder, the splicing insertion cylinder and the positioning screw rod are matched, quick disassembly and assembly can be realized, the extension rod and a drilling machine device can be connected with the pile body according to requirements, the overall length of the pile is extended, the insertion depth of the pile is improved, meanwhile, the sand locking cover cylinder drives the sand locking rotating blade to rotate into the sand soil, and the sand soil around the upper end of the pile is wrapped and locked.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic support spiral ground pile technology, specifically a high-stability photovoltaic support spiral ground pile. Background Technology

[0002] With the increasing prevalence of large-scale ground-mounted power plant construction, photovoltaic (PV) brackets are needed to support PV panels in order to meet environmental protection requirements. These brackets also need to be installed in various complex terrains. For loose soil, bedrock, sandy land, and swamps, ground piles need to be driven into the ground to provide stable and reliable foundation support for the PV brackets. This ensures the support of the PV panels during use. For example, a spiral ground pile sleeve for a PV bracket is disclosed in patent application number 202520527602.6. This patent uses a force transmission path of pile cap—vertical stiffening rib—sleeve—fixing nut—spiral ground pile—soil. The sleeve drives the spiral ground pile to rotate downward at high speed through the fixing nut, so that the spiral ground pile is driven into the designed depth, avoiding drilling holes in the pile body and welding flanges to the pile head. However, during use, after the ground piles are inserted into the ground, the surrounding sand and soil are not protected or secured. As a result, under the long-term blowing of wind and sand, the sand and soil on top of the ground piles are washed away, which affects the stability of the ground piles and makes them prone to tilting, reducing the stability of the support. Therefore, in order to avoid the above-mentioned technical problems, it is indeed necessary to provide a high-stability photovoltaic support spiral ground pile to overcome the defects in the existing technology. Summary of the Invention

[0003] This invention provides a highly stable photovoltaic support spiral ground pile, which can effectively solve the problem mentioned in the background art where, after the ground pile is inserted into the ground, the surrounding sand and soil are not protected or locked, resulting in the loss of the sand and soil on the top of the ground pile under long-term wind and sand blowing, which affects the stability of the ground pile, makes it easy for it to tilt, and reduces the stability of the support.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a highly stable photovoltaic support spiral ground pile, comprising a ground pile body, a spiral plate sleeved on the outer side of the ground pile body, and a splicing extension and sand-locking anchoring mechanism provided at the top of the ground pile body, the splicing extension and sand-locking anchoring mechanism comprising an extension rod; An extension rod is installed at the top of the ground pile body, and a connecting tube is snapped into the bottom end of the extension rod; The extension rod is fitted with a limiting sleeve on its outer side, and a sand-locking cover is fitted with a sand-locking sleeve on its outer side. Sand-locking blades are equidistantly engaged at the bottom end of the sand-locking cover. A rotating sleeve is movably sleeved on the outer side of the limiting sleeve, and a transmission shaft sleeve is snapped onto the top of the rotating sleeve, with a central guide rod connected to the inner wall of the transmission shaft sleeve. The outer side of the rotating sleeve is rotatably fitted with an annular transmission box. The top of the annular transmission box is clamped with a tilting block. The inside of the tilting block is connected to a cross guide cylinder, and the inside of the cross guide cylinder is connected to a cross diagonal brace. The bottom end of the cross diagonal brace is clamped with a spiral anchor rod.

[0005] According to the above technical solution, slots are provided at equal intervals on the outer side of the ground pile body and the outer side of the extension rod, and a locking block is engaged in the inner wall of the limiting sleeve corresponding to the slot. A protrusion is engaged in the inner wall of the transmission shaft sleeve at equal intervals, and a vertical groove is provided on the outer side of the center guide rod corresponding to the outer side of the protrusion.

[0006] According to the above technical solution, the top of the annular transmission box is inclined, the bottom of the cross guide cylinder penetrates the bottom of the annular transmission box, the outer diameter of the spiral anchor rod is smaller than the outer diameter of the cross brace, and the inclination angle of the cross guide cylinder is thirty degrees.

[0007] According to the above technical solution, the outer side of the rotating sleeve is fixedly sleeved with an active bevel gear ring corresponding to the inside of the annular transmission box, and the outer side of the cross guide rotating cylinder is fixedly sleeved with a driven bevel gear ring to the outer side of the active bevel gear ring. A linkage collar is movably sleeved on the outside of the central guide rod. A guide horizontal tube is equidistantly clamped on the outside of the linkage collar. A return spring is clamped inside the guide horizontal tube. A telescopic connecting rod is clamped on the other end of the return spring. A hinge seat is clamped on the other end of the telescopic connecting rod. A hinge shaft seat is rotatably connected inside the hinge seat. The outer top of the central guide rod is rotatably sleeved with a limit pressure plate, and the top of the hinge seat is engaged with a guide slider; The top of the central guide rod is engaged with a top pad, and the top of the top pad, the top of the extension rod, and the top of the ground pile body are all engaged with splicing inserts.

[0008] According to the above technical solution, both the active bevel gear ring and the driven bevel gear ring are bevel gears, and the active bevel gear ring and the driven bevel gear ring mesh with each other. The outer side of the telescopic connecting rod slides against the inner wall of the guide tube, and one end of the hinged shaft seat is rotatably connected to the top of the cross brace.

[0009] According to the above technical solution, the bottom end of the limiting pressure plate is provided with equidistant sliding grooves, and the top of the guide slider is slidably connected to the inner wall of the sliding groove. The three splicing inserts are symmetrically provided with insertion holes on their outer sides.

[0010] According to the above technical solution, a series and locking adjustment mechanism is provided at the top of the top pad block, and the series and locking adjustment mechanism includes a lifting slide rod; The top of the annular transmission box is equidistantly connected to a lifting slide rod, and a locking pressure ring is engaged at the bottom of the lifting slide rod. A tension spring is engaged at the top of the locking pressure ring corresponding to the outside of the lifting slide rod. The top of the active bevel ring is engaged with a locking friction ring at the bottom of the locking pressure ring; A connecting ring washer is snapped into the top of the lifting slide bar; The top of the limiting pressure plate is equidistantly connected to an adjusting cylinder, and an adjusting screw is engaged inside the adjusting cylinder. A central pressure rod is threadedly connected to the outside of the adjusting screw and the inside of the adjusting cylinder, and a lower pressure ring is engaged at the bottom of the central pressure rod. The top of the limiting pressure plate is rotatably connected to the outer side of the adjusting cylinder, and a transmission gear is fixedly sleeved on the inner wall of the annular cover and the outer side of the adjusting cylinder. The splicing insert on the top pad is sleeved with an installation cylinder on the outside, and both the installation cylinder and the docking cylinder are movably connected with positioning screws. The top of the mounting cylinder is snapped to a support tray, and a rotating ring frame is rotatably sleeved on the outside of the mounting cylinder corresponding to the bottom of the support tray. A connecting extension frame is snapped to the outside of the rotating ring frame at equal intervals. A series crossbeam is sleeved on the outside of the connecting extension frame, and both ends of the series crossbeam are snapped to docking slots. The connecting extension frame has push plates symmetrically slidably connected inside, and locking springs are equidistantly engaged between the two push plates. Locking rods are symmetrically engaged at opposite ends of the two push plates.

[0011] According to the above technical solution, the bottom end of the lifting slide rod passes through the top of the annular transmission box, the bottom end of the locking pressure ring is evenly provided with anti-slip teeth, the outer side of the central pressure rod is in contact with the inner wall of the adjusting cylinder, and the installation position of the lower pressure ring corresponds to the installation position of the connecting ring pad.

[0012] According to the above technical solution, the transmission gear on the annular cover meshes with the transmission gear on the adjusting cylinder, and a locking nut is threadedly connected to one end of the positioning screw, and one end of the positioning screw passes through one end of the insertion hole.

[0013] According to the above technical solution, there are four connecting extension frames. The outer side of the connecting extension frame fits against the inner wall of the docking slot, and round holes are symmetrically opened at both ends of the series crossbeam. One end of the locking rod is embedded in the round hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. A splicing extension and sand-locking anchoring mechanism is set up. Through the cooperation of the connecting cylinder, splicing insert, and positioning screw, it can be quickly assembled and disassembled. It is convenient to connect the extension rod and drilling equipment to the ground pile body according to the needs, realizing the extension of the overall length of the ground pile, increasing the insertion depth of the ground pile, and enhancing the support stability of the photovoltaic bracket. Through the cooperation of the limiting sleeve, the slot, and the locking block, the sand-locking cover cylinder rotates synchronously when the extension rod rotates, driving the sand-locking disc to rotate into the sand. This allows the sand-locking cover cylinder to wrap and lock the sand around the upper end of the ground pile, effectively reducing sand loss and playing a protective role in windbreak and sand fixation. By combining the tilting blocks and the cross guide cylinder, the cross bracing rods and the helical anchor rods are embedded into the sand at an oblique angle, forming a stable bracing structure that effectively resists horizontal forces and overturning moments from all directions, significantly improving the overall stability of the ground pile. At the same time, by utilizing the combination of the active conical tooth ring, the driven conical tooth ring, the transmission shaft sleeve, and the rotating sleeve, the central guide rod drives the four cross bracing rods to rotate synchronously. Combined with the helical drilling of the helical anchor rod, the cross bracing rods are pressed down quickly and smoothly, improving construction efficiency. At the same time, the synchronization and uniformity of the four bracing rods are ensured, avoiding the phenomenon of eccentricity that could lead to the tilting of the ground pile. Through the cooperation of the linkage collar, guide tube, return spring, telescopic link, hinge seat, and hinge shaft seat, the telescopic link adaptively slides inside the guide tube when the cross brace slides, ensuring that the inclination angle of the cross brace remains constant. This ensures the geometric accuracy and force rationality of the diagonal support. At the same time, through the cooperation of the linkage collar and the central guide rod, the limiting pressure plate is driven to descend synchronously, realizing the adaptive adjustment of the height of the limiting pressure plate. This changes the installation height of the subsequent support tray, adapting to different terrain undulations and design requirements, and improving the flexibility of installation.

[0015] 2. A series and locking adjustment mechanism is set up. By rotating the annular cover and driving the transmission gear, the annular cover can be rotated synchronously to drive the four adjusting cylinders to rotate. Then, through the cooperation of the adjusting screw, the central pressure rod and the lower pressure ring are pushed down to apply pressure to the connecting ring pad, so that the locking pressure ring and the locking friction ring are tightly engaged. Thus, after the cross brace is installed in place, the active conical tooth ring is locked to prevent the ground pile from reversing and loosening under the action of external forces such as wind, sand and vibration, and to ensure the safety of long-term use. When disassembly or adjustment is required, the annular cover is rotated in the opposite direction to release the pressure of the lower pressure ring on the connecting ring pad. The tension spring is used to pull the locking pressure ring to rise and reset, restoring the rotational freedom of the active conical tooth ring. This facilitates the disassembly and maintenance of the ground pile and enables quick switching between locking and unlocking. The mating slots facilitate the insertion of connecting extension frames from two adjacent ground piles into the ends of the series crossbeam. The locking spring pushes the push plate and locking rod to move, forcing the locking rod into the round hole on the series crossbeam, ensuring the stability of the connection. This allows multiple independent ground piles to be connected into a whole, achieving collaborative load-bearing of the pile group. This significantly improves the overall rigidity and wind and vibration resistance of the photovoltaic support foundation. At the same time, the standardized design of the series crossbeam facilitates rapid on-site installation and disassembly, improving construction efficiency.

[0016] In summary, through the coordination of splicing extension and sand-locking anchoring mechanisms and series connection and locking adjustment mechanisms, the system achieves on-demand extension of pile depth, effective prevention of sand erosion, stable reinforcement of inclined supports, and adaptive adjustment of lifting height. It also solves the problems of overturning resistance and sand fixation of single piles in sandy environments, rigidly connecting multiple piles in series to address the risk of loosening during long-term use and the issue of collaborative load-bearing among pile groups. This forms a complete spiral pile foundation reinforcement system for photovoltaic supports in sandy areas, improving the stability, safety, and adaptability of photovoltaic support foundations under complex conditions such as wind, sand, and vibration. Furthermore, the modular production of each component facilitates replacement and maintenance. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the central guide rod of the present invention; Figure 3 This is a schematic diagram of the installation structure of the limiting sleeve of the present invention; Figure 4 This is a schematic diagram of the installation structure of the tilting block of the present invention; Figure 5 This is a schematic diagram of the splicing extension and sand-locking anchoring mechanism of the present invention; Figure 6 This is a schematic diagram of the installation structure of the telescopic linkage of the present invention; Figure 7 This is a schematic diagram of the series connection and locking adjustment mechanism of the present invention; Figure 8 This is a schematic diagram of the installation structure of the connecting extension frame of the present invention; Figure 9 This is a schematic diagram of the installation structure of the locking rod of the present invention.

[0019] The diagram labels are: 1. Ground pile body; 2. Spiral plate; 3. Splicing extension and sand-locking anchoring mechanism; 301. Extension rod; 302. Connecting cylinder; 303. Limiting sleeve; 304. Sand-locking cover cylinder; 305. Sand-locking vane; 306. Rotating sleeve; 307. Transmission shaft sleeve; 308. Central guide rod; 309. Annular transmission box; 310. Tilter block; 311. Cross guide cylinder; 312. Cross diagonal brace; 313. Spiral anchor rod; 314. Active bevel gear ring; 315. Driven bevel gear ring; 316. Linkage collar; 317. Guide horizontal tube; 318. Return spring; 319. Telescopic connecting rod; 320. Hinge seat; 321. Hinge shaft seat; 322. Limiting pressure plate; 323. Guide slider; 324. Top pad; 325. Splicing insert; 4. Series and locking adjustment mechanism; 401. Lifting slide bar; 402. Locking pressure ring; 403. Tension spring; 404. Locking friction ring; 405. Connecting ring washer; 406. Adjusting cylinder; 407. Adjusting screw; 408. Center pressure rod; 409. Lower pressure ring; 410. Annular cover; 411. Transmission gear; 412. Mounting cylinder; 413. Positioning screw; 414. Support tray; 415. Rotating ring frame; 416. Connecting extension frame; 417. Series crossbeam; 418. Docking slot; 419. Push plate; 420. Locking spring; 421. Locking insert rod. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-9 As shown, the present invention provides a technical solution: a highly stable photovoltaic support spiral ground pile, including a ground pile body 1, a spiral plate 2 sleeved on the outside of the ground pile body 1, and a splicing extension and sand-locking anchoring mechanism 3 provided at the top of the ground pile body 1. The splicing extension and sand-locking anchoring mechanism 3 includes an extension rod 301, a docking cylinder 302, a limiting sleeve 303, a sand-locking cover cylinder 304, a sand-locking rotary plate 305, a rotating sleeve 306, a transmission shaft sleeve 307, a central guide rod 308, an annular transmission box 309, a tilting block 310, a cross guide rotating cylinder 311, a cross diagonal brace 312, a spiral anchor rod 313, an active conical tooth ring 314, a driven conical tooth ring 315, a linkage collar 316, a guide horizontal tube 317, a return spring 318, a telescopic connecting rod 319, a hinge seat 320, a hinge shaft seat 321, a limiting pressure plate 322, a guide slider 323, a top pad 324, and a splicing insert 325. An extension rod 301 is installed at the top of the ground pile body 1, and a connecting tube 302 is snapped into the bottom end of the extension rod 301. An extension rod 301 is fitted with a limiting sleeve 303 on its outer side, and a sand-locking cover 304 is fitted on its outer side. Sand-locking blades 305 are equidistantly engaged at the bottom end of the sand-locking cover 304. A rotating sleeve 306 is movably sleeved on the outer side of the limiting sleeve 303. A transmission shaft sleeve 307 is snapped onto the top of the rotating sleeve 306. A central guide rod 308 is connected to the inner wall of the transmission shaft sleeve 307. In order to limit and transmit, slots are provided at equal intervals on the outer side of the ground pile body 1 and the outer side of the extension rod 301. A locking block is snapped into the inner wall of the limiting sleeve 303 corresponding to the slot. A protrusion is snapped into the inner wall of the transmission shaft sleeve 307 at equal intervals. A vertical groove is provided on the outer side of the central guide rod 308 corresponding to the outer side of the protrusion. A ring transmission box 309 is rotatably sleeved on the outside of the rotating sleeve 306. A tilting block 310 is snapped onto the top of the ring transmission box 309. A cross guide cylinder 311 is connected inside the tilting block 310, and a cross diagonal brace 312 is connected inside the cross guide cylinder 311. A spiral anchor rod 313 is snapped onto the bottom of the cross diagonal brace 312. In order to improve the support effect, the top of the ring transmission box 309 is inclined. The bottom of the cross guide cylinder 311 penetrates the bottom of the ring transmission box 309. The outer diameter of the spiral anchor rod 313 is smaller than the outer diameter of the cross diagonal brace 312. The tilt angle of the cross guide cylinder 311 is thirty degrees. The outer side of the rotating sleeve 306 is fixedly sleeved with an active bevel gear ring 314 corresponding to the inside of the annular transmission box 309, and the outer side of the cross guide rotating cylinder 311 is fixedly sleeved with a driven bevel gear ring 315 to the outer side of the active bevel gear ring 314. A linkage collar 316 is movably sleeved on the outer side of the central guide rod 308. A guide horizontal tube 317 is equidistantly clamped on the outer side of the linkage collar 316. A return spring 318 is clamped inside the guide horizontal tube 317. A telescopic connecting rod 319 is clamped on the other end of the return spring 318. A hinge seat 320 is clamped on the other end of the telescopic connecting rod 319. A hinge shaft seat 321 is rotatably connected inside the hinge seat 320. In order to transmit power, both the driving bevel gear ring 314 and the driven bevel gear ring 315 are bevel gears, and the driving bevel gear ring 314 and the driven bevel gear ring 315 mesh with each other. The outer side of the telescopic connecting rod 319 slides against the inner wall of the guide horizontal tube 317. One end of the hinge shaft seat 321 is rotatably connected to the top of the cross brace 312. The outer top of the center guide rod 308 is rotatably sleeved with a limit pressure plate 322, and the top of the hinge seat 320 is snapped with a guide slider 323. The top of the central guide rod 308 is snapped with a top pad 324. The top of the top pad 324, the top of the extension rod 301, and the top of the ground pile body 1 are all snapped with splicing inserts 325. In order to facilitate docking, the bottom of the limiting pressure plate 322 is provided with equidistant grooves, and the top of the guide slider 323 is slidably connected to the inner wall of the groove. The three splicing inserts 325 are symmetrically provided with insertion holes on their outer sides. The top of the top pad 324 is provided with a series and locking adjustment mechanism 4. The series and locking adjustment mechanism 4 includes a lifting slide bar 401, a locking pressure ring 402, a tension spring 403, a locking friction ring 404, a connecting ring pad 405, an adjusting cylinder 406, an adjusting screw 407, a center pressure bar 408, a lower pressure ring 409, an annular cover 410, a transmission gear 411, a mounting cylinder 412, a positioning screw 413, a support tray 414, a rotating ring frame 415, a connecting extension frame 416, a series crossbeam 417, a docking slot 418, a push plate 419, a locking spring 420, and a locking insert rod 421. The top of the annular transmission box 309 is equidistantly connected to a lifting slide rod 401. The bottom end of the lifting slide rod 401 is engaged with a locking pressure ring 402, and the top of the locking pressure ring 402 is engaged with a tension spring 403 corresponding to the outside of the lifting slide rod 401. The top of the active bevel ring 314 corresponds to the locking pressure ring 402, and the bottom of the locking friction ring 404 is engaged with the locking friction ring 404. The top of the lifting slide bar 401 is fitted with a connecting ring washer 405; The top of the limiting pressure plate 322 is equidistantly connected to the adjusting cylinder 406. The adjusting cylinder 406 is fitted with an adjusting screw 407. The outer side of the adjusting screw 407 is connected to the inner side of the adjusting cylinder 406 via a threaded connection to the center pressure rod 408. The bottom end of the center pressure rod 408 is fitted with a lower pressure ring 409. In order to facilitate the limiting of the active bevel gear ring 314, the bottom end of the lifting slide rod 401 passes through the top of the annular transmission box 309. The bottom end of the locking pressure ring 402 is evenly provided with anti-slip teeth. The outer side of the center pressure rod 408 fits against the inner wall of the adjusting cylinder 406. The installation position of the lower pressure ring 409 corresponds to the installation position of the connecting ring pad 405. The top of the limiting pressure plate 322 is rotatably connected to the outer side of the adjusting cylinder 406, and the inner wall of the annular cover 410 and the outer side of the adjusting cylinder 406 are both fixedly sleeved with transmission gears 411. An installation cylinder 412 is sleeved on the outside of the splicing insert 325 on the top pad 324, and a positioning screw 413 is movably connected inside the installation cylinder 412 and the docking cylinder 302. In order to facilitate the descent of the lower pressure ring 409, the transmission gear 411 on the annular cover 410 meshes with the transmission gear 411 on the adjusting cylinder 406. A locking nut is threaded to one end of the positioning screw 413, and one end of the positioning screw 413 passes through one end of the insertion hole. The top of the mounting cylinder 412 is snapped with a support tray 414, and a rotating ring frame 415 is rotatably sleeved on the outside of the mounting cylinder 412 corresponding to the bottom of the support tray 414. A connecting extension frame 416 is equidistantly snapped on the outside of the rotating ring frame 415. A series crossbeam 417 is sleeved on the outside of the connecting extension frame 416, and both ends of the series crossbeam 417 are snapped with docking slots 418. The connecting extension frame 416 has push plates 419 symmetrically slidably connected inside, and locking springs 420 are equidistantly engaged between the two push plates 419. Locking rods 421 are symmetrically engaged at opposite ends of the two push plates 419. In order to facilitate the connection of multiple ground piles, there are four connecting extension frames 416. The outer side of the connecting extension frame 416 fits against the inner wall of the docking slot 418, and round holes are symmetrically opened at both ends of the connecting crossbeam 417. One end of the locking rod 421 is embedded in the round hole.

[0022] The working principle and usage process of this invention are as follows: First, by using the splicing insert 325 and the positioning screw 413, the ground pile body 1 is easily fixedly connected to the drilling equipment, which facilitates the drilling equipment to drive the ground pile body 1 and the spiral plate 2 to rotate. The drilling equipment presses down, causing the ground pile body 1 to be embedded in the ground. After the ground pile body 1 has descended to a certain distance, the positioning screw 413 is removed, separating the drilling equipment from the splicing insert 325 on the ground pile body 1. Then, as needed, by using the cooperation of the docking sleeve 302 and the splicing insert 325, the extension rod 301 is docked with the ground pile body 1, and the positioning screw 413 is reinserted to ensure the stability of the connection. Next, the sand-locking sleeve 304 is fixed to the outside of the extension rod 301 by the limiting sleeve 303, and another positioning screw 413 is reused to connect the splicing insert 325 on the extension rod 301 to the drilling equipment. This makes it easier for the drilling equipment to rotate with the extension rod 301 and the ground pile body 1 and continue to descend, increasing the insertion depth of the ground pile body 1 into the ground and increasing the stability of the subsequent photovoltaic support. In addition, through the cooperation of the slot and the locking block, when the extension rod 301 rotates, it drives the limiting sleeve 303, the sand-locking sleeve 304 and the sand-locking rotating plate 305 to rotate simultaneously. After descending a certain distance, the sand-locking sleeve 304 fits into the sand and wraps the sand, thereby firmly locking the sand around the upper end of the ground pile body 1 for wind protection, thereby reducing the loss of sand on the outside of the extension rod 301. Next, remove the positioning screw 413, then put the rotating sleeve 306 on the outside of the extension rod 301, and make the inner wall of the transmission shaft sleeve 307 fit against the outer side of the splicing insert 325, so as to facilitate the installation of the annular transmission box 309 above the sand-locking cover cylinder 304, and press down to fix the sand-locking cover cylinder 304. Next, the central guide rod 308 is inserted into the extension rod 301 through the top of the transmission shaft sleeve 307, and the four cross bracing rods 312 are respectively inserted through the cross guide cylinder 311 to form bracing. The limiting pressure plate 322 is fixed above the annular transmission box 309. Then, the splicing insert 325 on the top pad 324 is connected to the drilling equipment using the positioning screw 413, so that the drilling equipment can continuously provide downward pressure. The limiting pressure plate 322 pushes the cross bracing rods 312 down and embeds them into the sand through the cooperation of the central guide rod 308, the linkage collar 316, the guide horizontal tube 317, the return spring 318, the telescopic connecting rod 319, the hinge seat 320 and the hinge shaft seat 321. Meanwhile, during the downward pressing process, the drilling equipment drives the splicing insert 325, the top pad 324 and the central guide rod 308 to rotate. With the cooperation of the protrusion and the vertical groove, the central guide rod 308 can synchronously push the rotating sleeve 306 and the active conical tooth ring 314 to rotate. The limiting pressure plate 322 is limited because the cross brace 312 is embedded in the sand and will not rotate together. This forces the active conical tooth ring 314 to drive the driven conical tooth ring 315 and the cross guide cylinder 311 to rotate, which in turn drives the four cross braces 312 to rotate. Then, through the spiral anchor rod 313 at the bottom of the cross brace 312, the drilling equipment can be lowered, which improves the ease of embedding the cross brace 312 into the sand. This can form a stable oblique support and prevent the ground pile from tilting. Next, as the cross brace 312 slides down along the cross guide cylinder 311, the telescopic connecting rod 319 and the guide horizontal tube 317 are pulled down through the cooperation of the hinge seat 320 and the hinge shaft seat 321. At the same time, the telescopic connecting rod 319 slides inside the guide horizontal tube 317, ensuring that the angle of the cross brace 312 remains unchanged. Through the cooperation of the linkage collar 316, it is easy to pull the limiting pressure plate 322 down synchronously. The height of the limiting pressure plate 322 is adjusted as needed, thereby changing the installation height of the subsequent support tray 414 and improving adaptability. Next, after the cross brace 312 is installed, rotate the annular cover 410 on the limiting pressure plate 322. Then, through the cooperation of the transmission gear 411, the four adjusting cylinders 406 and their internal adjusting screws 407 are rotated, thereby pushing the central pressure rod 408 and the lower pressure ring 409 down. This forces the lower pressure ring 409 to press against the connecting ring pad 405, which in turn pushes the lifting slide rod 401 and the locking pressure ring 402 down. This allows the locking pressure ring 402 to mesh tightly with the locking friction ring 404, limiting the active bevel gear ring 314 and triggering the locking to prevent reverse rotation. At the same time, the annular transmission box 309 and the sand-locking cover 304 are pressed tightly against the sand surface to enhance the sand-fixing effect. During installation, the annular cover 410 is reversed and, through transmission, the central pressure rod 408 moves the lower pressure ring 409 up and down, releasing the pressure on the connecting ring pad 405. This allows the tension spring 403 to contract and pull the locking pressure ring 402 up, separating it from the locking friction ring 404, thus facilitating the rotation of the active bevel gear ring 314. Finally, the mounting cylinder 412 and the splicing insert 325 on the top pad 324 are easily connected by the positioning screw 413, thereby fixing the support tray 414 above the limiting pressure plate 322, which facilitates the subsequent installation of the photovoltaic bracket. In addition, rotating the rotating ring frame 415 makes the connecting extension frame 416 on the two adjacent ground pile bodies 1 correspond, which makes it easy to embed the connecting extension frame 416 on the two adjacent ground pile bodies 1 into the docking slots 418 at both ends of the series crossbeam 417. Then, with the cooperation of the locking spring 420, the push plate 419 is pushed to move in the opposite direction, so that the locking insert 421 is embedded into the round hole on the series crossbeam 417, fixing the series crossbeam 417. This facilitates the connection of multiple ground piles in series, realizes multi-pile linkage, and forms a rigid connection structure, which improves the stability of the support.

[0023] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly stable photovoltaic support spiral ground pile, comprising a ground pile body (1), characterized in that: The outer side of the ground pile body (1) is fitted with a spiral plate (2), and the top of the ground pile body (1) is provided with a splicing extension and sand-locking anchoring mechanism (3), which includes an extension rod (301). An extension rod (301) is installed at the top of the ground pile body (1), and a connecting tube (302) is snapped into the bottom of the extension rod (301). The extension rod (301) is sleeved with a limiting sleeve (303) on the outside, and a sand-locking cover cylinder (304) is sleeved with the limiting sleeve (303) on the outside. The bottom end of the sand-locking cover cylinder (304) is equidistantly clamped with sand-locking rotary plates (305). The limiting sleeve (303) is movably sleeved with a rotating sleeve (306), and the top of the rotating sleeve (306) is clamped with a transmission shaft sleeve (307), and the inner wall of the transmission shaft sleeve (307) is connected with a central guide rod (308). The outer side of the rotating sleeve (306) is rotatably sleeved with an annular transmission box (309), the top of the annular transmission box (309) is clamped with a tilting block (310), the inside of the tilting block (310) is connected to a cross guide cylinder (311), and the inside of the cross guide cylinder (311) is connected to a cross diagonal brace (312), the bottom end of the cross diagonal brace (312) is clamped with a spiral anchor rod (313).

2. The high-stability photovoltaic support spiral ground pile according to claim 1, characterized in that: The outer side of the ground pile body (1) and the outer side of the extension rod (301) are provided with slots at equal intervals, and the inner wall of the limiting sleeve (303) is provided with a block corresponding to the slot. The inner wall of the transmission shaft sleeve (307) is provided with a protrusion at equal intervals, and the outer side of the center guide rod (308) is provided with a vertical groove corresponding to the outside of the protrusion.

3. The high-stability photovoltaic support spiral ground pile according to claim 1, characterized in that: The top of the annular transmission box (309) is inclined, the bottom of the cross guide cylinder (311) passes through the bottom of the annular transmission box (309), the outer diameter of the spiral anchor rod (313) is smaller than the outer diameter of the cross diagonal brace (312), and the inclination angle of the cross guide cylinder (311) is thirty degrees.

4. The high-stability photovoltaic support spiral ground pile according to claim 1, characterized in that: The outer side of the rotating sleeve (306) is fixedly sleeved with an active bevel gear ring (314) corresponding to the inside of the annular transmission box (309), and the outer side of the cross guide rotating cylinder (311) is fixedly sleeved with a driven bevel gear ring (315) to the outer side of the active bevel gear ring (314). A linkage collar (316) is movably sleeved on the outside of the central guide rod (308). A guide horizontal tube (317) is equidistantly clamped on the outside of the linkage collar (316). A return spring (318) is clamped inside the guide horizontal tube (317). A telescopic connecting rod (319) is clamped on the other end of the return spring (318). A hinge seat (320) is clamped on the other end of the telescopic connecting rod (319). A hinge shaft seat (321) is rotatably connected inside the hinge seat (320). The outer top of the central guide rod (308) is rotatably sleeved with a limit pressure plate (322), and the top of the hinge seat (320) is engaged with a guide slider (323). The top of the central guide rod (308) is engaged with a top pad (324), and the top of the top pad (324), the top of the extension rod (301), and the top of the ground pile body (1) are all engaged with splicing inserts (325).

5. A high-stability photovoltaic support spiral ground pile according to claim 4, characterized in that: Both the active bevel gear ring (314) and the driven bevel gear ring (315) are bevel gears, and the active bevel gear ring (314) and the driven bevel gear ring (315) mesh with each other. The outer side of the telescopic connecting rod (319) slides against the inner wall of the guide tube (317), and one end of the hinged shaft seat (321) is rotatably connected to the top end of the cross brace (312).

6. The high-stability photovoltaic support spiral ground pile according to claim 4, characterized in that: The bottom end of the limiting pressure plate (322) is provided with equidistant grooves, and the top of the guide slider (323) is slidably connected to the inner wall of the groove. The three splicing inserts (325) are symmetrically provided with insertion holes on their outer sides.

7. A high-stability photovoltaic support spiral ground pile according to claim 4, characterized in that: The top of the top pad (324) is provided with a series and locking adjustment mechanism (4), which includes a lifting slide rod (401). The top of the annular transmission box (309) is equidistantly connected to a lifting slide rod (401), and a locking pressure ring (402) is snapped into the bottom of the lifting slide rod (401). A tension spring (403) is snapped into the top of the locking pressure ring (402) corresponding to the outside of the lifting slide rod (401). The top of the active bevel ring (314) is engaged with the bottom of the locking pressure ring (402) and the locking friction ring (404). The top of the lifting slide bar (401) is engaged with a connecting ring pad (405). The top of the limiting pressure plate (322) is equidistantly rotatably connected to an adjusting cylinder (406). An adjusting screw (407) is snapped inside the adjusting cylinder (406). A central pressure rod (408) is threadedly connected to the outside of the adjusting screw (407) corresponding to the inside of the adjusting cylinder (406). A lower pressure ring (409) is snapped at the bottom of the central pressure rod (408). The top of the limiting pressure plate (322) is rotatably connected to the outer side of the adjusting cylinder (406), and a transmission gear (411) is fixedly sleeved on the inner wall of the annular cover (410) and the outer side of the adjusting cylinder (406). The splicing insert (325) on the top pad (324) is sleeved with an installation cylinder (412), and both the inside of the installation cylinder (412) and the inside of the docking cylinder (302) are movably connected with positioning screws (413). The top of the mounting cylinder (412) is snapped with a support tray (414), and a rotating ring frame (415) is rotatably sleeved on the outside of the mounting cylinder (412) corresponding to the bottom of the support tray (414). A connecting extension frame (416) is snapped at an equal distance on the outside of the rotating ring frame (415). A series crossbeam (417) is sleeved on the outside of the connecting extension frame (416), and both ends of the series crossbeam (417) are snapped with docking slots (418). The connecting extension frame (416) has push plates (419) symmetrically slidably connected inside, and locking springs (420) are equidistantly engaged between the two push plates (419). Locking rods (421) are symmetrically engaged at opposite ends of the two push plates (419).

8. The high-stability photovoltaic support spiral ground pile according to claim 7, characterized in that: The bottom end of the lifting slide bar (401) passes through the top end of the annular transmission box (309), the bottom end of the locking pressure ring (402) is evenly provided with anti-slip teeth, the outer side of the central pressure bar (408) is in contact with the inner wall of the adjusting cylinder (406), and the installation position of the lower pressure ring (409) corresponds to the installation position of the connecting ring pad (405).

9. A high-stability photovoltaic support spiral ground pile according to claim 7, characterized in that: The transmission gear (411) on the annular cover (410) meshes with the transmission gear (411) on the adjusting cylinder (406). One end of the positioning screw (413) is connected to a locking nut by a thread, and one end of the positioning screw (413) passes through one end of the insertion hole.

10. A high-stability photovoltaic support spiral ground pile according to claim 7, characterized in that: There are four connecting extension frames (416). The outer side of the connecting extension frame (416) is in contact with the inner wall of the docking slot (418), and the two ends of the series crossbeam (417) are symmetrically provided with round holes. One end of the locking rod (421) is embedded in the round hole.

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