Pile pulling-out device of concrete pipe pile for constructional engineering
By designing a pile-extraction device that includes a base plate, column, sliding seat, and rotary motor, and utilizing the cooperation of auger drill rod and mounting plate, the silt inside concrete pipe piles can be quickly and thoroughly removed. This solves the problems of low cleaning efficiency and incomplete cleaning in existing technologies, improves cleaning efficiency, and enhances the flexibility of the device.
Patent Information
- Application Number
- CN202520431223.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-12
AI Technical Summary
The existing concrete pipe piles have low efficiency in cleaning silt after construction, and the existing pile-extraction devices do not clean thoroughly, still requiring manual cleaning. The overall efficiency needs to be improved.
Design a pile-excavating device that includes a base plate, column, sliding seat, power rod and rotary motor. It uses a spiral drill rod to quickly clean the silt inside the pipe pile, and avoids silt residue by moving the mounting plate laterally. Combined with telescopic rod and positioning column, the device's flexibility and mobility are improved.
It enables rapid and thorough cleaning of silt inside pipe piles, reduces the amount of silt residue, improves cleaning efficiency, avoids manual replenishment, and enhances the flexibility and convenience of the device.
Smart Images

Figure CN223893373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe pile construction, specifically a pile-extraction device for concrete pipe piles used in building engineering. Background Technology
[0002] After construction, existing concrete pipe piles require the removal of silt and other impurities from their interior. Current dredging methods typically involve manual excavation using tools. However, once the pile reaches deeper into the interior, manual cleaning becomes increasingly difficult and inefficient. While some improvements have been proposed using pile-extraction devices for automatic silt removal, these devices are cumbersome to set up and do not completely remove the silt, leaving some residue that requires subsequent manual cleaning. Overall, the cleaning efficiency remains low, and the efficiency of pile-extraction needs further improvement. Utility Model Content
[0003] The purpose of this utility model is to provide a pile-removing device for concrete pipe piles used in building engineering. It can solve the technical problems of difficult and inefficient cleaning of silt inside existing pipe piles, realize the rapid cleaning of silt inside the pipe pile, reduce the amount of silt residue, prevent the cleaned silt from falling back into the pipe pile, and greatly improve the cleaning efficiency.
[0004] To achieve the above objectives, this utility model employs the following technical solution:
[0005] A pile-extraction device for concrete pipe piles used in construction engineering includes a base plate, a plurality of fixed columns at the bottom of the base plate, and a column at the top of the base plate. One side of the bottom of the column is rotatably connected to the base plate. The base plate is provided with a positioning column that cooperates with the other side of the bottom of the column. The base plate is provided with a telescopic rod for driving the column to rotate. A sliding seat is slidably connected to the column vertically. A power rod for driving the sliding seat to slide is provided on the column. An mounting plate is slidably connected to the sliding seat horizontally. A rotary motor is provided on the mounting plate. A spiral drill rod is provided on the output shaft of the rotary motor.
[0006] Furthermore, the column is provided with a vertical groove, the slide block is slidably connected in the groove, and the power rod is set in the groove.
[0007] Furthermore, a lifting motor is provided at the top of the column, and the power rod is fixed on the output shaft of the lifting motor. The power rod passes through the slide and is threadedly connected to it.
[0008] Furthermore, the inner wall of the slide groove is symmetrically provided with guide grooves, and the two sides of the slide block are symmetrically provided with guide blocks, which are slidably connected in the guide grooves.
[0009] Furthermore, the telescopic rod is rotatably connected to the base plate, the movable end of the telescopic rod is rotatably connected to the column, the base plate is provided with a positioning plate, and the end of the positioning column passes through the positioning plate and is threadedly connected to the column.
[0010] Furthermore, the bottom of the base plate is provided with multiple omnidirectional wheels, and the bottom of the base plate is provided with multiple fixing plates. The fixing column is threadedly connected to the fixing plate, and the bottom of the fixing column is conical.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. The structure of this utility model features a column on a base plate, with a sliding block vertically connected to the column. A power rod drives the sliding block to slide vertically, and a mounting plate is horizontally connected to the sliding block. A rotary motor is mounted on the mounting plate, and a spiral drill rod is mounted on the output shaft of the rotary motor. This structure allows the rotary motor to drive the spiral drill rod to rotate, enabling rapid cleaning of silt inside the pipe pile. The spiral drill rod can rotate to the bottom of the pipe pile, lifting the silt at the bottom to the pipe pile opening through spiral rotation, reducing the amount of silt residue and making the pile removal and silt removal more thorough. After cleaning, the spiral drill rod rises and detaches from the pipe pile. The mounting plate then drives the spiral drill rod to move horizontally, detaching it from directly above the pipe pile. This allows for the cleaning of any remaining silt on the spiral drill rod from the outside of the pipe pile, preventing the remaining silt from falling back into the pipe pile. This makes the silt removal more thorough, eliminating the need for manual replenishment and greatly improving the efficiency of pile removal and silt removal.
[0013] 2. One side of the column is rotatably connected to the base plate. The base plate is equipped with a positioning column that works with the other side of the bottom of the column. The base plate is also equipped with a telescopic rod that drives the column to rotate. This structure allows the positioning column to be released after the pipe pile is cleaned, and the telescopic rod can be used to drive the column to rotate from vertical to tilted position. This reduces the vertical space occupied by the device, making it easier to move and transport the device and greatly improving the flexibility of the device. Attached Figure Description
[0014] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Appendix Figure 2 This is a schematic diagram of the internal structure of the groove of this utility model.
[0016] Appendix Figure 3 This is a schematic diagram of the structure of the column and base plate of this utility model.
[0017] The labels shown in the attached diagram:
[0018] 1. Base plate; 2. Fixed column; 3. Upright column; 4. Positioning column; 5. Telescopic rod; 6. Slide; 7. Power rod; 8. Mounting plate; 9. Rotary motor; 10. Spiral drill rod; 11. Slide groove; 12. Lifting motor; 13. Guide groove; 14. Guide block; 15. Positioning plate; 16. Caster wheel; 17. Fixed plate. Detailed Implementation
[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0020] Reference Figure 1 and Figure 3This utility model describes a pile-extraction device for concrete pipe piles used in building construction. The main structure includes a base plate 1, which provides support. Multiple fixing columns 2 are located at the bottom of the base plate 1 to secure it to the ground, ensuring stability during pile-extraction. A vertical column 3 is located at the top of the base plate 1. One side of the bottom of the column 3 is rotatably connected to the base plate 1 via a pin or hinge. A positioning column 4 is provided on the base plate 1 to cooperate with the other side of the bottom of the column 3. This structure allows the column 3 to be used... The device can be rotated vertically, and then tilted or rotated horizontally when not in use, thus saving vertical space and facilitating its transport and storage. The positioning column 4 is used to fix the column 3 vertically, ensuring a firm connection with the base plate 1 and providing stable support for the piling and dredging operations within the pipe pile. The base plate 1 is equipped with a telescopic rod 5 that drives the column 3 to rotate. The telescopic rod 5 is generally a pneumatic or hydraulic cylinder, and its telescopic movement drives the rotation of the column 3, thereby achieving automatic storage and retraction of the column 3. The column 3 has a vertical sliding connection... A sliding block 6 is connected to the column 3, which can slide up and down. The column 3 has a power rod 7 that drives the sliding block 6. A mounting plate 8 is laterally connected to the sliding block 6. The mounting plate 8 is typically driven laterally by an electric cylinder or a pneumatic cylinder. A rotary motor 9 is fixed to the mounting plate 8 by welding or bolts. A spiral drill rod 10 is fixed to the output shaft of the rotary motor 9 by welding or bolts. This structure allows the lateral sliding of the mounting plate 8 to move the rotary motor 9 and the spiral drill rod 10 above the pipe pile, and then rotate the electric... Machine 9 drives the spiral drill rod 10 to rotate. The rotation of the spiral blades on the spiral drill rod 10 rotates the silt inside the pipe pile to the pipe opening, thereby realizing the silt removal operation inside the pipe pile. The structure is simple, and the silt removal and pile emptying are more convenient and efficient. After the pile emptying is completed, the spiral blades move upward to the top of the pipe pile, and then the mounting plate 8 moves laterally to make the spiral blades detach from the top of the pipe pile. At this time, the silt remaining on the spiral blades can be cleaned off to prevent it from falling back into the pipe pile. There is no need for manual replenishment and cleaning again, making the pile emptying and silt removal more efficient and thorough.
[0021] Preferred, refer to Figure 2 The column 3 is provided with a vertical groove 11 that runs through one side of the column 3. The slide block 6 is slidably connected in the groove 11. The power rod 7 is set in the groove 11. The mounting plate 8 passes through the side and is connected to the slide block 6. This structure uses the groove 11 to provide guidance and restriction for the up and down sliding of the slide block 6, making the sliding structure of the slide block 6 more stable.
[0022] Preferably, the top of the column 3 is fixed with a lifting motor 12 by welding or bolts, and the power rod 7 is fixed to the output shaft of the lifting motor 12 by welding or bolts. The power rod 7 passes through the slide block 6 and is threadedly connected to it. With this structure, when the lifting motor 12 drives the power rod 7 to rotate, it can drive the slide block 6 to slide up and down in the slide groove 11 under the action of the threaded connection, thereby driving the mounting plate 8 and the spiral drill rod 10 to move up and down, realizing the top-down dredging and cleaning operation of the silt in the pipe pile. The structure is simple and the vertical movement control of the spiral drill rod 10 is more accurate and stable.
[0023] Preferably, guide grooves 13 are symmetrically provided on the inner wall of the slide groove 11. The guide grooves 13 are recessed inward from the side wall of the slide groove 11. Guide blocks 14 are symmetrically fixed on both sides of the slide block 6 by welding or integral molding. The guide blocks 14 are slidably connected in the guide grooves 13. The sliding cooperation between the guide blocks 14 and the guide grooves 13 makes the sliding structure of the slide block 6 in the slide groove 11 more stable and less prone to tilting or shaking. This makes the vertical sliding structure of the slide block 6 and the spiral drill rod 10 more stable and ensures the smoothness of the pile excavation operation.
[0024] Preferably, the main body of the telescopic rod 5 is rotatably connected to the base plate 1 via a pin or hinge, and the movable end of the telescopic rod 5 is rotatably connected to the column 3 via a pin or hinge. This structure allows the telescopic rod 5 to drive the column 3 to rotate around one side of the bottom when it extends or retracts, thus achieving automatic retraction or unfolding of the column 3. A positioning plate 15 is fixed to the base plate 1 by welding or bolts. The end of the positioning column 4 passes through the positioning plate 15 and is threadedly connected to the column 3. Specifically, a through hole is provided on the positioning plate 15, and bolt holes are provided on the side of the column 3 at positions corresponding to the through hole. With this structure, when the column 3 rotates to the vertical position, the positioning column 4 passes through the through hole on the positioning plate 15 and is threadedly connected to the threaded hole, so that the column 3 remains relatively fixed with the positioning plate 15 and the base plate 1, thereby ensuring the firmness of the column 3 and the stability of the pile excavation operation.
[0025] Preferably, the bottom of the base plate 1 is provided with multiple casters 16 to facilitate the movement of the device and improve the convenience of use. The bottom of the base plate 1 is fixed with multiple fixing plates 17 by welding or bolts. The fixing post 2 is threadedly connected to the fixing plate 17. The bottom of the fixing post 2 is conical. This structure allows the bottom of the fixing post 2 to move up and down by rotating it. The conical bottom can be easily inserted into the ground to fix the base plate 1 to the ground, making the fixing operation of the base plate 1 more convenient and secure.
[0026] Working Principle: This utility model features a base plate 1 with a column 3. A sliding block 6 is vertically connected to the column 3. A power rod 7 drives the sliding block 6 to slide vertically. A mounting plate 8 is horizontally connected to the sliding block 6. A rotary motor 9 is mounted on the mounting plate 8, and a spiral drill rod 10 is mounted on the output shaft of the rotary motor 9. This structure allows the rotary motor 9 to drive the spiral drill rod 10 to rotate, achieving rapid cleaning of the silt inside the pipe pile. The spiral drill rod 10 can rotate to the bottom of the pipe pile, lifting the silt at the bottom to the pile opening through spiral rotation, reducing the amount of silt residue and making the pile cleaning more thorough. After cleaning, the spiral drill rod 10 rises and detaches from the pipe pile. The mounting plate 8 then drives the spiral drill rod 10 to move horizontally... Directly above the pipe pile, it can clean the residual silt on the spiral drill rod 10 from the outside of the pipe pile, preventing the residual silt from falling back into the pipe pile. This makes the silt cleaning more thorough and eliminates the need for manual replenishment, greatly improving the efficiency of pile removal and silt removal. One side of the column 3 is rotatably connected to the base plate 1. The base plate 1 is equipped with a positioning column 4 that works with the other side of the bottom of the column 3. The base plate 1 is also equipped with a telescopic rod 5 that drives the column 3 to rotate. This structure allows the positioning column 4 to be released after the pipe pile is cleaned, and the telescopic rod 5 can be used to drive the column 3 from a vertical position to an inclined position. This reduces the vertical space occupied by the device, making it easier to move and transport, and greatly improving the flexibility of the device.
Claims
1. A pile-extraction device for concrete pipe piles used in building construction, comprising a base plate (1), wherein a plurality of fixed columns (2) are provided at the bottom of the base plate (1), characterized in that: The base plate (1) has a column (3) on its top. One side of the bottom of the column (3) is rotatably connected to the base plate (1). The base plate (1) has a positioning column (4) for use with the other side of the bottom of the column (3). The base plate (1) has a telescopic rod (5) for driving the column (3) to rotate. The column (3) has a slide block (6) slidably connected vertically. The column (3) has a power rod (7) for driving the slide block (6) to slide. The slide block (6) has a mounting plate (8) slidably connected horizontally. The mounting plate (8) has a rotary motor (9). The output shaft of the rotary motor (9) has a spiral drill rod (10).
2. The pile-extraction device for concrete pipe piles used in building construction according to claim 1, characterized in that: The column (3) is provided with a vertical groove (11), the slide block (6) is slidably connected in the groove (11), and the power rod (7) is set in the groove (11).
3. The pile-extraction device for concrete pipe piles used in building construction according to claim 2, characterized in that: The top of the column (3) is provided with a lifting motor (12), and the power rod (7) is fixed on the output shaft of the lifting motor (12). The power rod (7) passes through the slide (6) and is threadedly connected to it.
4. The pile-extraction device for concrete pipe piles used in building construction according to claim 2, characterized in that: The inner wall of the slide groove (11) is symmetrically provided with guide grooves (13), and the two sides of the slide block (6) are symmetrically provided with guide blocks (14), and the guide blocks (14) are slidably connected in the guide grooves (13).
5. The pile-extraction device for concrete pipe piles used in building construction according to claim 1, characterized in that: The telescopic rod (5) is rotatably connected to the base plate (1), and the movable end of the telescopic rod (5) is rotatably connected to the column (3). The base plate (1) is provided with a positioning plate (15), and the end of the positioning column (4) passes through the positioning plate (15) and is threadedly connected to the column (3).
6. The pile-extraction device for concrete pipe piles used in building construction according to claim 1, characterized in that: The bottom of the base plate (1) is provided with multiple casters (16), and the bottom of the base plate (1) is provided with multiple fixing plates (17). The fixing column (2) is threadedly connected to the fixing plate (17), and the bottom of the fixing column (2) is conical.