A photovoltaic pile perfusion pile same-row high-precision positioning device
By using telescopic columns and tensioning mechanisms in photovoltaic pile installations, the problem of slack and sagging of the engineering lines was solved, achieving uniformity of elevation and improved installation accuracy, thereby enhancing construction efficiency and the economic benefits of the power station.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA CHONGQING ENG CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-05-29
AI Technical Summary
In existing photovoltaic cast-in-place pile elevation devices, the engineering line is prone to slack and sagging, making it difficult to maintain a straight state, which leads to measurement errors and reduced installation accuracy.
The system employs telescopic columns and a tensioning mechanism within the uprights. Through the cooperation of ratchet and cam, it achieves automatic tensioning of the engineering line and fixation of the telescopic columns, ensuring uniform elevation.
It effectively maintains the straightness of the engineering line, reduces measurement errors, improves installation accuracy and construction efficiency, and reduces later maintenance costs.
Smart Images

Figure CN224303024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic support foundation construction technology, and in particular to a photovoltaic cast-in-place pile same row elevation calibration device. Background Technology
[0002] Photovoltaic cast-in-place piles are the foundation structure of photovoltaic (PV) systems. By driving / casting concrete or steel piles into the ground, they utilize the friction between the piles and the soil, as well as end-bearing capacity, to support the load of the PV modules and resist external forces such as wind and snow, ensuring the stability of the system. They are suitable for areas with soft soil, such as farmland and wetlands where large-scale excavation should be avoided; complex terrain such as mountains and slopes; and harsh environments such as coastal mudflats and deserts. Adaptable to various soil conditions, they are easy to construct and cause minimal damage to the surface, making them a common foundation type for ground-mounted PV power plants.
[0003] The purpose of calibrating the elevation of the same row of photovoltaic (PV) piles is to ensure that the top elevation of the piles in the same row is consistent, guaranteeing the horizontal and vertical alignment of the PV support system and ensuring uniform stress on the module array. This improves the stability of the support system, avoids stress concentration caused by elevation differences, extends the lifespan of the power station, reduces installation errors, improves construction efficiency, lowers later maintenance costs, ensures the optimal tilt angle of the PV modules, increases power generation, and enhances the economic benefits of the power station.
[0004] In existing technologies, some photovoltaic pile co-row elevation calibration devices typically use an engineering line directly tied to the scale on the column to limit the height. This can cause the engineering line to sag and become difficult to keep straight, resulting in bending of the benchmark line for the top elevation of the piles in the same row, leading to measurement errors. When affected by external forces such as wind or construction collisions, the engineering line is prone to displacement, resulting in increased positioning deviations of the pile heights and affecting installation accuracy. Therefore, a photovoltaic pile co-row elevation calibration device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a photovoltaic grouting pile parallel elevation calibration device, which aims to improve the problem that some existing photovoltaic grouting pile parallel elevation calibration devices usually tie the engineering line directly to the scale on the column to limit the height, which causes the engineering line to sag and be difficult to keep straight.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A photovoltaic cast-in-place pile elevation calibration device includes a column, an extension column slidably connected to the inner wall of the column, an extension mechanism installed on the inner wall of the column, a tensioning mechanism slidably connected to the outer wall of the extension column, and graduation lines provided on the outer wall of the column and the extension column.
[0008] The tensioning mechanism includes a mounting box, a pawl rotatably connected to the inner wall of the mounting box, a lever pawl fixedly connected to the top of the pawl, torsion springs fixedly connected to both the upper and lower ends of the pawl, the other ends of the two torsion springs fixedly connected to the inner wall of the mounting box, and a control component installed on the inner wall of the mounting box.
[0009] As a further description of the above technical solution:
[0010] The control component includes a ratchet, the outer wall of which is rotatably connected to the inner wall of the mounting box, and a control lever is fixedly connected to the top of the ratchet;
[0011] As a further description of the above technical solution:
[0012] The bottom of the ratchet is fixedly connected to a take-up roller, and the outer wall of the take-up roller is fitted with engineering thread. The outer wall of the ratchet and the outer wall of the pawl are engaged with each other.
[0013] As a further description of the above technical solution:
[0014] The telescopic mechanism includes a fixed box, a fixed plate is fixedly connected to the inner wall of the mounting box, a limit rod is slidably connected to the inner wall of the fixed plate, a fixed ring is fixedly connected to the outer wall of the limit rod, and a locking assembly is installed on the outer wall of the fixed box;
[0015] As a further description of the above technical solution:
[0016] The inner wall of the telescopic column is provided with multiple limiting holes, and one end of the limiting rod is detachably connected to the inner wall of the limiting hole;
[0017] As a further description of the above technical solution:
[0018] An elastic spring is fixedly connected to the outer wall of the fixing plate, and the other end of the elastic spring is fixedly connected to the outside of the fixing ring.
[0019] As a further description of the above technical solution:
[0020] The positioning assembly includes two mounting plates, the outer walls of the two mounting plates are fixedly connected to the outer wall of the fixing box, and cams are rotatably connected to the adjacent sides of the two mounting plates;
[0021] As a further description of the above technical solution:
[0022] A pull rod is fixedly connected to the outer wall of the cam, and the outer wall of the pull rod is rotatably connected to the inner wall of one of the mounting plates. The outer wall of the cam is in contact with the other end of the limiting rod.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, when it is necessary to tension the engineering line, the control lever is rotated. The rotation of the control lever drives the ratchet to rotate. At this time, the pawl will engage with the outer wall of the ratchet, thereby limiting the ratchet. The rotation of the ratchet drives the take-up roller to rotate, and the rotation of the take-up roller drives the engineering line to start rotating and tightening, so that the engineering line is taut at the same elevation, which facilitates the uniformity of the elevation when installing photovoltaic injection piles later.
[0025] 2. In this utility model, the telescopic column is slidable, allowing it to slide on the inner wall of the column. When it slides to a suitable height, the pull rod is activated. The activation of the pull rod changes the shape of the cam, causing the cam to push out the limiting rod. The pushing out of the cam pushes the limiting rod to the inner wall of the limiting hole opened on the inner wall of the telescopic column, thereby fixing the telescopic column at a suitable height on the inner wall of the column. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a photovoltaic cast-in-place pile elevation calibration device proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the column structure of a photovoltaic cast-in-place pile elevation calibration device proposed in this utility model;
[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0029] Figure 4 This is a schematic diagram of the structure of a telescopic column for a photovoltaic cast-in-place pile elevation calibration device proposed in this utility model;
[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.
[0031] Legend:
[0032] 1. Column; 2. Telescopic column; 3. Wire tensioning mechanism; 31. Mounting box; 32. Pawl; 33. Torsion spring; 34. Actuating pawl; 35. Control assembly; 351. Ratchet; 352. Control lever; 353. Take-up roller; 4. Telescopic mechanism; 41. Fixing box; 42. Fixing plate; 43. Fixing ring; 44. Limiting rod; 45. Elastic spring; 46. Limiting hole; 47. Locking assembly; 471. Mounting plate; 472. Pull rod; 473. Cam; 5. Scale line; 6. Engineering line. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figures 1 to 3 This utility model provides an embodiment of a photovoltaic grouting pile elevation calibration device, including a column 1, which serves as the basic support component of the device to stabilize the entire device. A telescopic column 2 is slidably connected to the inner wall of the column 1, and the telescopic column 2 can move up and down along the inner wall of the column 1 to adjust the overall height. A telescopic mechanism 4 is installed on the inner wall of the column 1 to fix the position of the telescopic column 2 inside the column 1. A tensioning mechanism 3 is slidably connected to the outer wall of the telescopic column 2, and the tensioning mechanism 3 can slide on the outer wall of the telescopic column 2 to adapt to the tensioning requirements at different positions. The outer wall of the column 1 is provided with scale lines 5, which facilitates intuitive reading of the height information of the column 1. The outer wall of the telescopic column 2 is provided with scale lines 5, which facilitates reading the length of the telescopic column 2 extending out of the column 1 to determine the total height.
[0035] The tensioning mechanism 3 includes a mounting box 31, which provides mounting space for the various components of the tensioning mechanism 3. A pawl 32 is rotatably connected to the inner wall of the mounting box 31. The pawl 32 can rotate within the mounting box 31 to engage or disengage with the ratchet 351. A lever pawl 34 is fixedly connected to the top of the pawl 32, which facilitates manual operation of the pawl 32. Torsion springs 33 are fixedly connected to both the upper and lower ends of the pawl 32. The torsion springs 33 provide a restoring force to keep the pawl 32 engaged with the ratchet 351. The other ends of the two torsion springs 33 are fixedly connected to the inner wall of the mounting box 31, thereby fixing the torsion springs 33 and realizing their elastic function. A control component 35 is installed on the inner wall of the mounting box 31. The control component 35 is used to drive the take-up roller 353 to rotate to achieve tensioning.
[0036] The control component 35 includes a ratchet 351. Rotation of the ratchet 351 can drive the take-up roller 353 to rotate synchronously. The outer wall of the ratchet 351 is rotatably connected to the inner wall of the mounting box 31, so that the ratchet 351 can rotate stably within the mounting box 31. A control rod 352 is fixedly connected to the top of the ratchet 351, which facilitates manual rotation of the ratchet 351. The bottom of the ratchet 351 is fixedly connected to the take-up roller 353. Rotation of the take-up roller 353 can wind up or release the engineering line 6. The engineering line 6 is sleeved on the outer wall of the take-up roller 353. The engineering line 6 is used as a calibration benchmark to ensure that the elevation of the piles in the same row is uniform. The outer wall of the ratchet 351 and the outer wall of the pawl 32 are interlocked. The interlocking enables the ratchet 351 to rotate in one direction and prevents it from rotating in reverse, which would cause the engineering line 6 to loosen.
[0037] Reference Figure 4 and Figure 5 The telescopic mechanism 4 includes a fixed box 41, which provides an installation carrier for the components of the telescopic mechanism 4. A fixed plate 42 is fixedly connected to the inner wall of the mounting box 41. The fixed plate 42 is used to install the limiting rod 44 and limit its sliding direction. The limiting rod 44 is slidably connected to the inner wall of the fixed plate 42. The limiting rod 44 can slide within the fixed plate 42 to insert into or disengage from the limiting hole 46. A fixed ring 43 is fixedly connected to the outer wall of the limiting rod 44. The fixed ring 43 is used to connect the elastic spring 45 and drive the limiting rod 44 to move. A locking assembly 47 is installed on the outer wall of the fixed box 41. The locking assembly 47 is used to control the position of the limiting rod 44.
[0038] The inner wall of the telescopic column 2 is provided with multiple limiting holes 46, which allow the telescopic column 2 to be fixed at different heights. One end of the limiting rod 44 is detachably connected to the inner wall of the limiting hole 46, and the telescopic column 2 is fixed by inserting it into the limiting hole 46. An elastic spring 45 is fixedly connected to the outer wall of the fixing plate 42. The elastic spring 45 provides a restoring force to the limiting rod 44, causing it to disengage from the limiting hole 46. The other end of the elastic spring 45 is fixedly connected to the outer wall of the fixing ring 43, thereby fixing the elastic spring 45 and realizing its elastic function. The locking assembly 47 includes two mounting plates 471, which are used to mount the cam 473 and make it rotate stably. The outer wall of plate 471 is fixedly connected to the outer wall of fixed box 41. Fixing the mounting plate 471 to fixed box 41 ensures structural stability. A cam 473 is rotatably connected to the adjacent side of the two mounting plates 471. The rotation of cam 473 can push the limit rod 44 to move. A pull rod 472 is fixedly connected to the outer wall of cam 473. The pull rod 472 facilitates manual rotation of cam 473. The outer wall of pull rod 472 is rotatably connected to the inner wall of one of the mounting plates 471, so that pull rod 472 can rotate stably and drive cam 473. The outer wall of cam 473 contacts the other end of limit rod 44. The rotation of cam 473 pushes limit rod 44 to move, thereby achieving locking or unlocking.
[0039] Working principle: When the engineering line 6 needs to be tied to the surface of the take-up roller 353, and when the engineering line 6 needs to be tensioned, the control lever 352 is rotated. The rotation of the control lever 352 drives the ratchet 351 to rotate. At this time, the pawl 32 will engage with the outer wall of the ratchet 351, thereby limiting the ratchet 351. The rotation of the ratchet 351 drives the take-up roller 353 to rotate, and the rotation of the take-up roller 353 drives the engineering line 6 to start rotating and tightening, so that the engineering line 6 is taut at the same elevation, which facilitates the uniformity of elevation when installing photovoltaic injection piles later.
[0040] When installing the same row of elevation devices, the bottom of column 1 is installed on the ground. Then, the telescopic column 2 is slid along the inner wall of column 1. When it reaches the appropriate height, the pull rod 472 is activated. The activation of the pull rod 472 changes the shape of the cam 473. The cam 473 then pushes the limit rod 44 to the inner wall of the limit hole 46 on the inner wall of the telescopic column 2, thus fixing the telescopic column 2 at the appropriate height on the inner wall of column 1. At this time, the elastic spring 45 is in a stretched state. When further adjustment is needed, the pull rod 472 is rotated, causing the shape of the cam 473 to change again so that the elastic spring 45 releases its elastic potential energy and pulls the limit rod 44 out of the inner wall of the limit hole 46 through the fixing ring 43, thereby adjusting the height of the telescopic column 2 inside column 1.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A photovoltaic cast-in-place pile elevation calibration device, comprising a column (1), characterized in that: The inner wall of the column (1) is slidably connected to a telescopic column (2), the inner wall of the column (1) is equipped with a telescopic mechanism (4), the outer wall of the telescopic column (2) is slidably connected to a tensioning mechanism (3), the outer wall of the column (1) is provided with scale lines (5), and the outer wall of the telescopic column (2) is provided with scale lines (5). The tensioning mechanism (3) includes a mounting box (31), a pawl (32) is rotatably connected to the inner wall of the mounting box (31), a lever pawl (34) is fixedly connected to the top of the pawl (32), torsion springs (33) are fixedly connected to both the upper and lower ends of the pawl (32), and the other ends of the two torsion springs (33) are fixedly connected to the inner wall of the mounting box (31). A control component (35) is installed on the inner wall of the mounting box (31).
2. The photovoltaic cast-in-place pile elevation calibration device according to claim 1, characterized in that: The control assembly (35) includes a ratchet (351), the outer wall of which is rotatably connected to the inner wall of the mounting box (31), and a control lever (352) is fixedly connected to the top of the ratchet (351).
3. The photovoltaic cast-in-place pile elevation calibration device according to claim 2, characterized in that: The bottom of the ratchet (351) is fixedly connected to a take-up roller (353), and the outer wall of the take-up roller (353) is fitted with an engineering line (6). The outer wall of the ratchet (351) and the outer wall of the pawl (32) are engaged with each other.
4. The photovoltaic cast-in-place pile elevation calibration device according to claim 1, characterized in that: The telescopic mechanism (4) includes a fixed box (41), a fixed plate (42) is fixedly connected to the inner wall of the mounting box (31), a limit rod (44) is slidably connected to the inner wall of the fixed plate (42), a fixed ring (43) is fixedly connected to the outer wall of the limit rod (44), and a locking assembly (47) is installed on the outer wall of the fixed box (41).
5. The photovoltaic cast-in-place pile elevation calibration device according to claim 4, characterized in that: The inner wall of the telescopic column (2) is provided with a plurality of limiting holes (46), and one end of the limiting rod (44) is detachably connected to the inner wall of the limiting hole (46).
6. The photovoltaic cast-in-place pile elevation calibration device according to claim 5, characterized in that: An elastic spring (45) is fixedly connected to the outer wall of the fixing plate (42), and the other end of the elastic spring (45) is fixedly connected to the outer wall of the fixing ring (43).
7. The photovoltaic cast-in-place pile elevation calibration device according to claim 4, characterized in that: The positioning assembly (47) includes two mounting plates (471), the outer walls of the two mounting plates (471) are fixedly connected to the outer wall of the fixing box (41), and a cam (473) is rotatably connected to the adjacent side of the two mounting plates (471).
8. The photovoltaic cast-in-place pile elevation calibration device according to claim 7, characterized in that: A pull rod (472) is fixedly connected to the outer wall of the cam (473), and the outer wall of the pull rod (472) is rotatably connected to the inner wall of one of the mounting plates (471). The outer wall of the cam (473) is in contact with the other end of the limiting rod (44).