Automatic positioning device for cast-in-place pile
By designing an automatic positioning device for cast-in-place piles, the installation platform and multiple adjustment structures are used to achieve precise alignment and stable insertion of the cast-in-place pile holes, solving the problem of inaccurate installation of cast-in-place piles in the construction of photovoltaic support foundations, and improving construction efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-05-08
AI Technical Summary
In the current construction of photovoltaic support foundations, the verticality of the cast-in-place piles is not up to standard and their positions are not accurate, resulting in insufficient construction precision and affecting the overall project progress and cost.
An automatic positioning device for cast-in-place piles was designed, including an installation platform, a positioning column structure, a leveling structure, a horizontal position adjustment structure, and a vertical position adjustment structure. The device achieves precise alignment and stable insertion of the cast-in-place pile hole through positioning identification equipment and a control module.
This improved the accuracy and efficiency of cast-in-place pile construction, reduced the construction cycle and cost, and ensured the accurate positioning of photovoltaic supports.
Smart Images
Figure CN121992782A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic equipment installation technology, and in particular to an automatic positioning device for cast-in-place piles. Background Technology
[0002] As a core component of power plant construction, the construction quality of photovoltaic brackets and their foundations directly affects the progress and effectiveness of the overall project.
[0003] However, due to the generally tight schedules and dispersed work areas of photovoltaic projects, insufficient precision control often occurs during the construction of the support foundation. This manifests as deviations in the position of the pile tops and substandard verticality. At the same time, the original flatness or undulating slope of the construction site further increases the difficulty of vertically installing the foundation piles. Once the foundation deviates, it will directly affect the accurate positioning of the upper support, not only increasing the workload of debugging and rectification during the installation phase, but also leading to a longer construction period and increased construction costs. Summary of the Invention
[0004] To overcome the shortcomings of the existing technology, the technical problem to be solved by the present invention is: how to improve the problems of substandard verticality and inaccurate positioning of existing cast-in-place piles.
[0005] The technical solution adopted by this invention to solve its technical problem is: An automatic positioning device for cast-in-place piles includes an installation platform with a vertically downward-extending positioning column structure at its lower end. A cast-in-place pile sleeve is detachably mounted at the lower end of the positioning column structure. The positioning column structure is equipped with a positioning identification device for identifying the cast-in-place pile hole. The installation platform is equipped with a leveling structure for adjusting the platform to a horizontal position. A horizontal position adjustment structure and a vertical position adjustment structure are also provided between the positioning column structure and the installation platform. The horizontal position adjustment structure adjusts the positioning column structure horizontally, and the vertical position adjustment structure adjusts the positioning column structure vertically. The device also includes a control module. The positioning identification device, leveling structure, horizontal position adjustment structure, and vertical position adjustment structure are all electrically connected to the control module. After the positioning identification device detects the position of the cast-in-place pile hole, it sends a signal to the control module. The control module controls the horizontal and vertical position adjustment structures to move, driving the positioning column structure and causing the cast-in-place pile sleeve to fit into the cast-in-place pile hole.
[0006] Furthermore, the installation platform includes an annular end plate, the leveling structure includes an electronic level, and at least three retractable outriggers are evenly spaced along the circumference at the lower end of the annular end plate. The retractable outriggers are electrically connected to the control module. The positioning column structure includes a circular connecting plate located directly above the annular end plate, and a vertically downward extending positioning column is provided at the lower end of the circular connecting plate. The grouting pile sleeve is detachably connected to the lower end of the positioning column, and the positioning column passes downward into the inner hole of the annular end plate. A horizontal position adjustment structure and a vertical position adjustment structure are connected between the circular connecting plate and the annular end plate.
[0007] Furthermore, multiple telescopic rods are spaced circumferentially at the upper end of the annular end plate. The horizontal position adjustment structure includes a horizontal drive rod located at the upper end of the telescopic rod, with the end of the horizontal drive rod away from the telescopic rod connected to a circular connecting plate. The horizontal drive component is electrically connected to the control module. The vertical position adjustment structure includes multiple vertical drive rods spaced at the upper end of the annular end plate. The vertical drive rods and telescopic rods are spaced apart. A movable connecting mechanism is provided between the upper end of the vertical drive rod and the circular connecting plate. The movable connecting mechanism is used to limit the vertical position of the circular connecting plate and slides with the circular connecting plate in the horizontal direction.
[0008] Furthermore, the movable connecting mechanism includes multiple through holes formed in the circular connecting plate, with each through hole corresponding to a position of a multiple vertical drive rod. A first limiting plate is provided at the top of the vertical drive rod, and a connecting rib is provided at the upper end of the first limiting plate. The connecting rib extends upward into the through hole, and the upper end of the connecting rib is connected to a second limiting plate. The dimensions of both the first and second limiting plates are larger than the inner diameter of the through hole, and the outer diameter of the connecting rib is smaller than the inner diameter of the through hole. The upper end of the first limiting plate is close to the lower surface of the circular connecting plate, and the lower end of the second limiting plate is close to the upper surface of the circular connecting plate. The connecting unit formed by the first limiting plate, the connecting rib, and the second limiting plate slides relative to the circular connecting plate within a preset range.
[0009] Furthermore, a limiting groove is provided on the periphery of the circular connecting plate, and an abutment block is provided at one end of the horizontal drive rod near the circular connecting plate. The size of the abutment block is smaller than the internal size of the limiting groove. When multiple horizontal drive rods extend and retract adaptively, the abutment end of the abutment block slides adaptively with the inner wall of the limiting groove.
[0010] Furthermore, the height of the limiting groove is adapted to the height of the abutment block, and the width of the limiting groove is greater than the outer diameter of the abutment block; the abutment end of the abutment block is hemispherical.
[0011] Furthermore, both the horizontal and vertical drive rods include pneumatic drive rod structures.
[0012] Furthermore, the lower part of the positioning column is tapered, and the lower end of the positioning column extends into the casing of the cast-in-place pile. The casing of the cast-in-place pile and the positioning column part extending into the casing of the cast-in-place pile are fixed by a pin structure.
[0013] Furthermore, the positioning and identification device includes a shadow image sensor, which is positioned at the center point of the bottom end of the positioning post.
[0014] Furthermore, the control module includes a PLC controller.
[0015] The beneficial effects of this invention are: The control leveling structure adjusts the installation platform horizontally, ensuring the positioning column structure remains vertical. After leveling, the position of the cast-in-place pile hole is detected by the positioning identification device. The control module then moves the horizontal position adjustment structure horizontally to align the positioning column structure with the cast-in-place pile hole. Simultaneously, the control module controls the vertical position adjustment structure to raise and lower the positioning column structure, enabling the cast-in-place pile sleeve to accurately and vertically enter the cast-in-place pile hole. The entire structure, through the automatic adjustment and control of multiple adjustment mechanisms, improves construction efficiency and significantly enhances the accuracy of cast-in-place pile construction. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram showing the connection relationship between the circular connecting plate and the horizontal drive rod of the present invention; Figure 3 This is a schematic diagram of the front view of the circular connecting plate of the present invention; Figure 4 This is a schematic diagram of the connection between the movable connecting mechanism and the circular connecting plate of the present invention; Figure 5 This is a top view schematic diagram of the annular end plate of the present invention; Figure 6 This is a schematic diagram of the connection between the positioning column and the grouting pile sleeve of the present invention; The markings in the diagram are as follows: 1-ring end plate, 2-telescopic support leg, 3-telescopic rod, 4-horizontal drive rod, 5-vertical drive rod, 6-circular connecting plate, 7-electronic level, 8-control module, 9-positioning column, 10-sleeve of cast-in-place pile, 11-movable connecting mechanism, 12-abutment block, 13-limiting groove, 14-first limiting plate, 15-second limiting plate, 16-connecting rib, 17-through hole, 18-pin structure. Detailed Implementation
[0017] The invention will be further described below with reference to the accompanying drawings.
[0018] like Figures 1-6As shown in the embodiment of this application, an automatic positioning device for cast-in-place piles is proposed, including an installation platform. A vertically downward extending positioning column structure is provided at the lower end of the installation platform. A cast-in-place pile sleeve 10 is detachably installed at the lower end of the positioning column structure. The positioning column structure is equipped with a positioning identification device for identifying the cast-in-place pile hole. The installation platform is equipped with a leveling structure for adjusting the installation platform to a horizontal state. A horizontal position adjustment structure and a vertical position adjustment structure are also provided between the positioning column structure and the installation platform. The horizontal position adjustment structure is used to adjust the position of the positioning column structure in the horizontal direction, and the vertical position adjustment structure is used to adjust the position of the positioning column structure in the vertical direction. The device also includes a control module 8. The positioning identification device, the leveling structure, the horizontal position adjustment structure, and the vertical position adjustment structure are all electrically connected to the control module 8. After the positioning identification device detects the position of the cast-in-place pile hole, it sends a signal to the control module 8. The control module 8 controls the horizontal and vertical position adjustment structures to move, driving the positioning column structure to move and causing the cast-in-place pile sleeve 10 to fit into the cast-in-place pile hole. In actual construction, the operator places the entire device in the corresponding casting hole based on visual estimation. Due to uneven ground, the installation platform tilted at the pile hole location. The leveling structure was activated to ensure the platform was horizontal and the positioning column structure was vertically aligned downwards. Simultaneously, the positioning identification device detected the position of the grouting pile hole. The control module 8 received the identification signal and controlled the horizontal position adjustment structure to fine-tune the positioning column structure's position in the horizontal plane, aligning the bottom of the positioning column structure with the grouting pile hole. The vertical position adjustment structure, under the control of the control module 8, lowered the positioning column structure and the grouting pile sleeve 10 into the grouting pile hole in the ground. The grouting pile sleeve 10 and positioning column structure were then disassembled, and a new grouting pile sleeve 10 was attached to the positioning column structure. The entire device was then moved to the new grouting pile hole location for installation. The positioning identification device included a shadow image sensor, positioned at the center point of the bottom of the positioning column 9 to ensure positioning accuracy. The control module 8 included an existing PLC controller. Through a preset control program, the detected position signal was output as control signals for the horizontal and vertical position adjustment structures using existing algorithm logic, ensuring adjustment accuracy.
[0019] The aforementioned installation platform can be a flat plate, a frame, or a box-shaped structure, capable of integrating multiple structures. Specifically, the installation platform includes an annular end plate 1. The leveling structure can be a level detection device. After detecting the level state, the level detection device controls the corresponding electric telescopic structure through the control module 8 to adjust the horizontal position of the annular end plate 1, achieving the leveling effect. To further simplify the structure, the leveling structure includes an electronic level 7. At least three telescopic legs are evenly spaced along the circumference at the lower end of the annular end plate 1, and the telescopic legs are electrically connected to the control module 8. The positioning column structure includes a circular connecting plate 6 located directly above the annular end plate 1. A vertically downward extending positioning column 9 is provided at the lower end of the circular connecting plate 6. The grouting pile sleeve 10 is detachably connected to the lower end of the positioning column 9, and the positioning column 9 penetrates downward into the inner hole of the annular end plate 1. A horizontal position adjustment structure and a vertical position adjustment structure are connected between the circular connecting plate 6 and the annular end plate 1. In other words, the electronic level 7 transmits the detected level state signal to the control module 8, and the control module 8 adjusts the level of the annular end plate 1 by controlling the height position of the telescopic legs.
[0020] Multiple telescopic rods 3 are spaced circumferentially along the upper end of the annular end plate 1. The horizontal position adjustment structure includes a horizontal drive rod 4 located on the upper end of the telescopic rod 3. The end of the horizontal drive rod 4 away from the telescopic rod 3 is connected to a circular connecting plate 6. The horizontal drive rod 4 is electrically connected to the control module 8. The vertical position adjustment structure includes multiple vertical drive rods 5 spaced apart on the upper end of the annular end plate 1. The vertical drive rods 5 and the telescopic rods 3 are spaced apart. A movable connecting mechanism 11 is provided between the upper end of the vertical drive rod 5 and the circular connecting plate 6. The movable connecting mechanism 11 is used to limit the vertical position of the circular connecting plate 6 and slides with the circular connecting plate 6 in the horizontal direction. The telescopic rods 3 can be telescopically extended by two slidingly fitted sleeves or by scissor telescopic components, ensuring both linear extension and extension in the vertical direction and limiting in the horizontal direction. Both the horizontal drive rod 4 and the vertical drive rod 5 can be electric push rods or hydraulic push rods. In this embodiment, a pneumatic drive rod structure is used to ensure the accuracy and stability of the structure drive. To ensure multi-directional horizontal position adjustment, the horizontal drive rod 4 is... Multiple circumferentially spaced rods are arranged around the circular connecting plate 6, and multiple horizontal drive rods 4 adjust the circular connecting plate 6 under the action of the control module 8. Specifically, to avoid relative interference and jamming when more than three horizontal drive rods 4 adjust the horizontal position of the circular connecting plate 6 simultaneously, a limiting groove 13 is provided on the peripheral edge of the circular connecting plate 6, and an abutment block 12 is provided at the end of the horizontal drive rod 4 near the circular connecting plate 6. The size of the abutment block 12 is smaller than the internal size of the limiting groove 13. When multiple horizontal drive rods 4 extend and retract adaptively, the abutment end of the abutment block 12 slides adaptively with the inner wall of the limiting groove 13. That is to say, a limiting groove 13 and an abutment block 12 form a horizontal adjustment unit. Multiple horizontal adjustment units need to act simultaneously to achieve the horizontal position adjustment of the circular connecting plate 6. When multiple horizontal adjustment units act synchronously, the abutment block 12 and the inner wall of the limiting groove 13 in different horizontal adjustment units adaptively slide relative to each other and change relative angles to achieve the adaptive structural requirements and ensure the stability and smoothness of the adjustment process.
[0021] Furthermore, in order to further improve the adaptability and position adjustment efficiency of the inner wall of the abutment block 12 and the limiting groove 13, and at the same time ensure that the limiting block and the circular connecting plate 6 do not undergo relative displacement in the vertical direction, the height of the limiting groove 13 is adapted to the height of the abutment block 12 and the width of the limiting groove 13 is greater than the outer diameter of the abutment block 12; the abutment end of the abutment block 12 is set in a hemispherical shape; thereby realizing the smoothness of the relative sliding of the abutment block 12 in the limiting groove 13 and avoiding jamming.
[0022] The aforementioned movable connecting mechanism 11 can be a clamping mechanism disposed on the edge of the circular connecting plate 6, with the clamping mechanism and the circular connecting plate 6 slidingly engaged; or it can be a magnetic adsorption structure, ensuring relative movement in the horizontal direction while ensuring no separation in the vertical direction. In this embodiment, to simplify the structure and reduce costs, the movable connecting mechanism 11 includes multiple through holes 17 formed in the circular connecting plate 6, the positions of the multiple through holes 17 corresponding one-to-one with the positions of multiple vertical driving rods 5; a first limiting plate 14 is provided at the top of the vertical driving rod 5, the first limiting plate 14... A connecting rib 16 is provided at the upper end of the plate 14. The connecting rib 16 extends upward into the through hole 17. The upper end of the connecting rib 16 is connected to the second limiting plate 15. The dimensions of the first limiting plate 14 and the second limiting plate 15 are both larger than the inner diameter of the through hole 17. The outer diameter of the connecting rib 16 is smaller than the inner diameter of the through hole 17. The upper end of the first limiting plate 14 is close to the lower surface of the circular connecting plate 6, and the lower end of the second limiting plate 15 is close to the upper surface of the circular connecting plate 6. The connecting unit formed by the first limiting plate 14, the connecting rib 16, and the second limiting plate 15 slides relative to the circular connecting plate 6 within a preset range. In other words, when multiple horizontal drive rods 4 simultaneously drive the circular connecting plate 6 to move horizontally, the first limiting plate 14 and the second limiting plate 15 move relative to the circular connecting plate 6. The upper end of the first limiting plate 14 slides relative to the lower end of the circular connecting plate 6, and the lower end of the second limiting plate 15 slides relative to the upper end of the circular connecting plate 6. The position of the connecting rib 16 changes relative to the through hole 17. Furthermore, the dimensions of the first limiting plate 14 and the second limiting plate 15 are designed to be larger than the preset inner diameter of the through hole 17, ensuring that the circular connecting plate 6 moves horizontally. At the same time, the first limiting plate 14 and the second limiting plate 15 always cover both ends of the through hole 17, and the outer diameter of the connecting rib 16 is smaller than the inner diameter of the through hole 17, which is set to a preset value to ensure that the connecting rib 16 has sufficient room for movement in the through hole 17. The upper and lower surfaces of the first limiting plate 14, the second limiting plate 15 and the circular connecting plate 6 are all smooth. The clamping force of the first limiting plate 14 and the second limiting plate 15 on the circular connecting plate 6 is set to a preset value to ensure the clamping effect while ensuring that relative sliding can occur under the action of the horizontal driving rod 4.
[0023] The lower part of the positioning column 9 is tapered, and the lower end of the positioning column 9 extends into the grouting pile sleeve 10. The grouting pile sleeve 10 and the part of the positioning column 9 extending into the grouting pile sleeve 10 are fixed by a pin structure. The tapered part at the lower end of the positioning column 9 is frustum-shaped and extends into the inner hole of the upper part of the grouting pile sleeve 10. The positioning column is fixed by a pin structure. At this time, the positioning column 9 and the grouting pile sleeve 10 are coaxially fixed. After the grouting pile sleeve 10 is accurately inserted into the grouting pile hole in the ground, the grouting pile sleeve 10 and the positioning column 9 are separated and disassembled by the pin structure to realize the installation of the grouting pile sleeve 10.
[0024] In summary, this invention proposes an automatic positioning device for cast-in-place piles. The leveling structure controls the horizontal adjustment of the installation platform, ensuring the positioning column structure remains vertical. After leveling, the position of the cast-in-place pile hole is detected by an identification device. Based on the detected position, the control module 8 controls the horizontal position adjustment structure to move the positioning column structure horizontally, aligning it with the position of the cast-in-place pile hole. Simultaneously, the control module 8 controls the vertical position adjustment structure to raise and lower the positioning column structure, enabling the cast-in-place pile sleeve 10 to accurately and vertically enter the cast-in-place pile hole. The entire structure, through the automatic adjustment and control of multiple adjustment mechanisms, improves construction efficiency and significantly enhances the accuracy of cast-in-place pile construction. The sliding fit between the abutment block 12 and the limiting groove 13, along with the movable connecting mechanism 11, ensures smoothness and stability during adjustment, preventing jamming.
Claims
1. An automatic positioning device for cast-in-place piles, characterized in that, The system includes an installation platform with a vertically extending positioning column structure at the lower end. A detachable pile sleeve (10) is installed at the lower end of the positioning column structure. The positioning column structure is equipped with a positioning identification device for identifying the pile hole. The installation platform is equipped with a leveling structure for adjusting the installation platform to a horizontal state. A horizontal position adjustment structure and a vertical position adjustment structure are also provided between the positioning column structure and the installation platform. The horizontal position adjustment structure is used to adjust the position of the positioning column structure in the horizontal direction, and the vertical position adjustment structure is used to adjust the position of the positioning column structure in the vertical direction. The system also includes a control module (8). The positioning identification device, the leveling structure, the horizontal position adjustment structure, and the vertical position adjustment structure are all electrically connected to the control module (8). After the positioning identification device detects the position of the pile hole, it sends a signal to the control module (8). The control module (8) controls the horizontal position adjustment structure and the vertical position adjustment structure to move, drive the positioning column structure to move, and drive the pile sleeve (10) to fit into the pile hole.
2. The automatic positioning device for cast-in-place piles according to claim 1, characterized in that, The installation platform includes an annular end plate (1), the leveling structure includes an electronic level (7), and at least three telescopic legs are evenly spaced along the circumference at the lower end of the annular end plate (1). The telescopic legs are electrically connected to the control module (8). The positioning column structure includes a circular connecting plate (6) located directly above the annular end plate (1). A positioning column (9) extending vertically downward is provided at the lower end of the circular connecting plate (6). The grouting pile sleeve (10) is detachably connected to the lower end of the positioning column (9). The positioning column (9) extends downward into the inner hole of the annular end plate (1). A horizontal position adjustment structure and a vertical position adjustment structure are connected between the circular connecting plate (6) and the annular end plate (1).
3. The automatic positioning device for cast-in-place piles according to claim 2, characterized in that, Multiple telescopic rods (3) are spaced circumferentially at the upper end of the annular end plate (1). The horizontal position adjustment structure includes a horizontal drive rod (4) located at the upper end of the telescopic rod (3). The end of the horizontal drive rod (4) away from the telescopic rod (3) is connected to a circular connecting plate (6). The horizontal drive component is electrically connected to the control module (8). The vertical position adjustment structure includes multiple vertical drive rods (5) spaced at the upper end of the annular end plate (1). The vertical drive rods (5) and the telescopic rods (3) are spaced apart. A movable connecting mechanism (11) is provided between the upper end of the vertical drive rod (5) and the circular connecting plate (6). The movable connecting mechanism (11) is used to limit the vertical position of the circular connecting plate (6) and slides with the circular connecting plate (6) in the horizontal direction.
4. The automatic positioning device for cast-in-place piles according to claim 3, characterized in that, The movable connecting mechanism (11) includes multiple through holes (17) opened in the circular connecting plate (6), the positions of the multiple through holes (17) corresponding one-to-one with the positions of multiple vertical drive rods (5); a first limiting plate (14) is provided at the top of the vertical drive rod (5), a connecting rib (16) is provided at the upper end of the first limiting plate (14), the connecting rib (16) passes upward into the through hole (17), and the upper end of the connecting rib (16) is connected to the second limiting plate (15), the first limiting plate (14) is connected to the second limiting plate (15), and the first limiting plate (16) is connected to the second limiting plate (15). 4) The dimensions of the first limiting plate (14) and the second limiting plate (15) are both larger than the inner diameter of the through hole (17), the outer diameter of the connecting rib (16) is smaller than the inner diameter of the through hole (17), and the upper end of the first limiting plate (14) is close to the lower surface of the circular connecting plate (6), and the lower end of the second limiting plate (15) is close to the upper surface of the circular connecting plate (6); the connecting unit formed by the first limiting plate (14), the connecting rib (16) and the second limiting plate (15) slides relative to the circular connecting plate (6) within a preset range.
5. The automatic positioning device for cast-in-place piles according to claim 3, characterized in that, A limiting groove (13) is provided on the periphery of the circular connecting plate (6). A stop block (12) is provided at one end of the horizontal drive rod (4) near the circular connecting plate (6). The size of the stop block (12) is smaller than the internal size of the limiting groove (13). When multiple horizontal drive rods (4) extend and retract adaptively, the stop end of the stop block (12) slides adaptively with the inner wall of the limiting groove (13).
6. The automatic positioning device for cast-in-place piles according to claim 5, characterized in that, The height of the limiting groove (13) is adapted to the height of the abutment block (12), and the width of the limiting groove (13) is greater than the outer diameter of the abutment block (12); the abutment end of the abutment block (12) is hemispherical.
7. The automatic positioning device for cast-in-place piles according to claim 3, characterized in that, Both the horizontal drive rod (4) and the vertical drive rod (5) include pneumatic drive rod structures.
8. The automatic positioning device for cast-in-place piles according to claim 2, characterized in that, The lower part of the positioning column (9) is tapered, and the lower end of the positioning column (9) extends into the pile sleeve (10). The pile sleeve (10) and the positioning column (9) extending into the pile sleeve (10) are fixed by a pin structure.
9. The automatic positioning device for cast-in-place piles according to claim 8, characterized in that, The positioning and identification device includes a shadow image sensor, which is located at the center point of the bottom end of the positioning column (9).
10. The automatic positioning device for cast-in-place piles according to claim 1, characterized in that, The control module (8) includes a PLC controller.