A precast pipe pile connecting device
By designing a detachable and adjustable precast pipe pile connection device, the problems of difficulty in disassembly and insufficient support stability in the existing technology are solved, and the device can be reused and provide stable support.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-03
AI Technical Summary
The existing precast pile connection device is difficult to disassemble in actual operation, resulting in single use and insufficient support stability, which increases production costs.
A connecting device comprising a first set of rings and a second set of rings was designed. Through structures such as bolts, telescopic columns, fixing nails and arc-shaped clamps, a detachable and adjustable support state is achieved, and all-round welding is performed in conjunction with ball bearings and arc-shaped grooves.
This enables the reusability of the connecting device, improves the stability of the support, and reduces production costs.
Smart Images

Figure CN224451624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a precast pipe pile connection device. Background Technology
[0002] With the development of technology, precast piles are often used to build foundations at construction sites. Precast piles are usually hollow tubes made of concrete, which serve to bear the load. Precast piles refer to piles that are manufactured in a factory and then transported to the piling site for direct use. They are usually made of concrete. During the piling process, the connection between two sets of precast piles is fixed by welding to ensure their stability during construction.
[0003] An existing patent (publication number: CN220598415U) discloses a precast pile connection device for hollow concrete pipe piles, relating to the field of building construction technology. This precast pile connection device for hollow concrete pipe piles includes a ring body. A support rod is fixedly connected to the outer wall of the ring body, and a conical block is fixedly connected to the bottom of the support rod. A fixing mechanism is provided on the outer wall of the ring body. The fixing mechanism includes an elastic telescopic rod, the outer wall of which is slidably connected to the inner wall of a through groove. The through groove is located on the outer wall of the ring body. In this invention, by providing a fixing mechanism, pulling the elastic telescopic rod outward and moving it upward causes the elastic telescopic rod to move the ring upward, and the ring squeezes the triangular block, causing the fixing plate to move inward and clamp and fix the outer walls of two sets of precast piles. This allows for rapid inward fixing of the precast piles by four fixing plates simultaneously, improving work efficiency and saving the process of fixing by rotating bolts.
[0004] In the aforementioned patented technology, during use, after fixing a set of precast piles to the ground, the device is installed on the outer wall of the set of precast piles from above, and then another set of precast piles is moved above the first set of precast piles. However, in actual operation, after welding the two sets of precast piles, the connecting device is integrated, and because the precast piles are relatively high, it is difficult to disassemble the connecting device from the outside of the precast piles. This may even result in the connecting device being usable only once, increasing production costs. Furthermore, the support rod of the connecting device in the aforementioned technology is fixed, making it inconvenient to adjust the support state as needed, which makes it difficult to guarantee the stability of the support. Therefore, a precast pipe pile connecting device is proposed. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a precast pipe pile connection device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a precast pipe pile connection device, comprising a first collar and a second collar, wherein a fixing plate is fixedly connected to the outer surfaces of both the left and right sides of the first collar and the second collar, and a plurality of threaded holes are provided on the outer surface of the fixing plate, wherein bolts are provided inside the plurality of threaded holes, a first rotating seat is fixedly connected to the outer surface of both the first collar and the second collar, a telescopic column is rotatably connected to the outer surface of the first rotating seat, and a second rotating seat is rotatably connected to the outer surface of the telescopic column away from the first rotating seat, wherein a fixing nail is fixedly connected to the bottom outer surface of the second rotating seat.
[0007] Furthermore, two arc-shaped grooves are formed on the top outer surface of both the first and second rings. Fixed columns are movably connected inside the four arc-shaped grooves. Movable columns are movably arranged inside the four fixed columns. Limiting rings are fixedly connected to the top outer surface of the two front movable columns and the top outer surface of the two rear movable columns. A positive and negative lead screw is rotatably passed through the outer surface of the front limiting ring. Two threaded plates are threadedly connected to the outer surface of the positive and negative lead screws. Slide plates are provided on the outer surface of the two threaded plates. Arc-shaped clamping plates are fixedly connected to the opposite outer surfaces of the two threaded plates and the opposite outer surfaces of the two slide plates.
[0008] Furthermore, a rectangular box is fixedly connected to the outer surface of each of the four fixed columns. A limit rod is movably passed through the outer surface of the rectangular box. A pull plate is fixedly connected to the outer surface of the limit rod. A connecting plate is fixedly connected to the limit rod inside the rectangular box. A spring is fixedly connected to the outer surface of the connecting plate near the pull plate. The other end of the spring is fixedly connected to the inside of the rectangular box. The spring is sleeved on the outer surface of the limit rod. Several limit holes are equidistantly opened on the outer surface of the movable column.
[0009] Furthermore, a sliding rod is fixedly inserted through the outer surface of the rear limiting ring, and two sliding plates are movably sleeved on the outer surface of the sliding rod.
[0010] Furthermore, a plug plate is fixedly connected to the side of the threaded plate near the slide plate, and a slot is provided on the side of the slide plate near the threaded plate.
[0011] Furthermore, the outer surface of the arc-shaped clamp is provided with a number of ball bearings.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The precast pipe pile connection device, by setting a first collar and a second collar, and setting a fixing plate on the outer surface of the first collar and the second collar, and with the help of bolts, makes it easy to disassemble the first collar and the second collar from the side of the precast pipe pile, so that the connection device can be reused.
[0014] 2. The precast pipe pile connection device, by setting a first rotating seat and a second rotating seat, together with the telescopic column and fixing nail, can adjust the support state of the connection device as needed, thereby improving the stability of the support.
[0015] 3. The precast pipe pile connection device is equipped with positive and negative screws. When the positive and negative screws are rotated, the two threaded rods and the sliding plate move. In conjunction with the arc-shaped clamp, the precast pipe pile above is fixed. The limit ring is rotated by setting ball bearings, arc-shaped sliding grooves and fixing columns to carry out welding work in all directions. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the first ring, the second ring, the limiting ring, and their related structures of this utility model;
[0018] Figure 3 This is a schematic diagram of the threaded plate and slide plate of this utility model and their related structures;
[0019] Figure 4 This is an exploded view of the first set of rings and the limiting ring and their related structures of this utility model;
[0020] Figure 5 This is a cross-sectional schematic diagram of the fixed column and movable column of this utility model and their related structures.
[0021] In the diagram: 1. First ring; 2. Second ring; 3. Fixing plate; 4. Bolt; 5. First rotating seat; 6. Telescopic column; 7. Second rotating seat; 8. Fixing nail; 9. Arc-shaped slide groove; 10. Fixing column; 11. Movable column; 12. Limiting ring; 13. Positive and negative lead screws; 14. Threaded plate; 15. Slide plate; 16. Arc-shaped clamp; 17. Ball bearing; 18. Rectangular box; 19. Limiting rod; 20. Pull plate; 21. Connecting plate; 22. Spring. Detailed Implementation
[0022] 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.
[0023] Please refer to the following: Figures 1-5This utility model provides a technical solution: a precast pipe pile connection device, including a first collar 1 and a second collar 2. Fixing plates 3 are fixedly connected to the outer surfaces of both sides of the first collar 1 and the second collar 2. The outer surface of the fixing plates 3 has several threaded holes, and bolts 4 are installed inside each of the threaded holes. A first rotating seat 5 is fixedly connected to the outer surface of both the first collar 1 and the second collar 2. A telescopic column 6 is rotatably connected to the outer surface of the first rotating seat 5. A second rotating seat 7 is rotatably connected to the outer surface of the telescopic column 6 away from the outer surface of the first rotating seat 5. A fixing nail 8 is fixedly connected to the bottom outer surface of the second rotating seat 7. In this embodiment... After fixing a set of precast piles to the ground, the device is installed on the outer wall of the set of precast piles from above. According to actual needs, the telescopic column 6 rotates on the outer surface of the first rotating seat 5 and the outer surface of the second rotating seat 7. The angle and length of the telescopic column 6 are adjusted so that the fixing nail 8 is driven into the ground to support the device. After the welding work is completed, the bolt 4 is unscrewed to release the limit on the two adjacent fixing plates 3, so that the first ring 1 and the second ring 2 are released from the limit, thereby disassembling the first ring 1 and the second ring 2. Thus, the connecting device can be disassembled from both sides of the precast pile and reused.
[0024] The top outer surfaces of the first ring 1 and the second ring 2 each have two arc-shaped grooves 9. Fixed columns 10 are movably connected inside each of the four arc-shaped grooves 9. Movable columns 11 are movably installed inside each of the four fixed columns 10. Limiting rings 12 are fixedly connected to the top outer surfaces of the two front movable columns 11 and the two rear movable columns 11. A positive and negative threaded rod 13 rotatably passes through the outer surface of the front limiting ring 12. Two threaded plates 14 are threadedly connected to the outer surface of the positive and negative threaded rod 13. Slide plates 15 are installed on the outer surfaces of the two threaded plates 14. Arc-shaped clamping plates 16 are fixedly connected to the opposing outer surfaces of the two threaded plates 14 and the opposing outer surfaces of the two slide plates 15. In this embodiment, rotating the positive and negative threaded rod 13 causes the two threaded plates 14 to move, and the two threaded plates 14 drive the slide plates 15 and the arc-shaped clamping plates 16 to clamp and fix the precast pile above.
[0025] A rectangular box 18 is fixedly connected to the outer surface of each of the four fixed columns 10. A limiting rod 19 is movably passed through the outer surface of the rectangular box 18. A pull plate 20 is fixedly connected to the outer surface of the limiting rod 19. A connecting plate 21 is fixedly connected to the inside of the rectangular box 18. A spring 22 is fixedly connected to the outer surface of the connecting plate 21 near the pull plate 20. The other end of the spring 22 is fixedly connected to the inside of the rectangular box 18. The spring 22 is sleeved on the outer surface of the limiting rod 19. Several limiting holes are equidistantly opened on the outer surface of the movable column 11. In this embodiment, when the pull plate 20 is pulled, the pull plate 20 drives the limiting rod 19 to move, causing the connecting plate 21 to deform the spring 22. The limiting rod 19 disengages from the inside of the limiting hole, releasing the limiting of the movable column 11. The position of the movable column 11 inside the fixed column 10 is adjusted, thereby adjusting the height of the limiting ring 12. The height of the limiting ring 12 is adjusted to be above another set of precast piles, so that the connection between the two precast piles is exposed.
[0026] A slide rod is fixedly inserted through the outer surface of the rear limiting ring 12. Two slide plates 15 are movably sleeved on the outer surface of the slide rod. In this embodiment, when the threaded plate 14 moves, it drives the slide plates 15 to slide on the outer surface of the slide rod, so as to prevent the threaded plate 14 from rotating with the rotation of the threaded rod.
[0027] A plug plate is fixedly connected to the side of the threaded plate 14 near the slide plate 15. A slot is provided on the side of the slide plate 15 near the threaded plate 14. In this embodiment, the slide plate 15 and the threaded plate 14 can be spliced by inserting the plug plate into the slot, so that when the threaded plate 14 moves, it drives the slide plate 15 to slide. When disassembling the connecting device, the slide plate 15 and the threaded plate 14 can be disassembled.
[0028] The outer surface of the arc-shaped clamp 16 is provided with a number of balls 17. In this embodiment, by providing balls 17 on the outer surface of the arc-shaped clamp 16, it is convenient to make the arc-shaped clamp 16 rotate on the outer surface of the precast pile when rotating the limiting ring 12.
[0029] Working Principle: In use, after fixing a set of precast piles to the ground, the device is installed on the outer wall of the precast piles from above. According to actual needs, the telescopic column 6 rotates on the outer surface of the first rotating seat 5 and the outer surface of the second rotating seat 7. The angle and length of the telescopic column 6 are adjusted, allowing the fixing nail 8 to be driven into the ground for support. Then, another set of precast piles is moved above the first set. Pulling the pull plate 20 causes the limiting rod 19 to move, causing the connecting plate 21 to deform the spring 22. The limiting rod 19 disengages from the limiting hole, releasing the limiting of the movable column 11. The position of the movable column 11 inside the fixed column 10 is adjusted, thereby adjusting the height of the limiting ring 12. The height of the limiting ring 12 is adjusted to be above the other set of precast piles, connecting the two precast piles. The exposed part is then rotated, and the positive and negative screws 13 rotate, causing the two threaded plates 14 to move. The two threaded plates 14 drive the sliding plate 15 and the arc-shaped clamping plate 16 to clamp and fix the precast pile above. Then, the connection between the two precast piles is welded. After welding, the limiting ring 12 is rotated, so that the fixed column 10 slides inside the arc-shaped sliding groove 9. Under the action of the ball 17, the arc-shaped clamping plate 16 can rotate on the surface of the precast pile above, thereby moving the fixed column 10 and the movable column 11 to provide a channel for welding work and to carry out welding work from all directions. After the welding work is completed, the bolt 4 is unscrewed to release the limitation of the two adjacent fixed plates 3, so that the first set of rings 1 and the second set of rings 2 are released, thereby disassembling the first set of rings 1 and the second set of rings 2. Thus, the connecting device can be disassembled from both sides of the precast pile and reused.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A precast pipe pile connection device, comprising a first collar (1) and a second collar (2), characterized in that: Fixing plates (3) are fixedly connected to the outer surfaces of the first collar (1) and the second collar (2) on both sides. The outer surface of the fixing plate (3) is provided with several threaded holes, and bolts (4) are provided inside the several threaded holes. The outer surfaces of the first collar (1) and the second collar (2) are fixedly connected to a first rotating seat (5). The outer surface of the first rotating seat (5) is rotatably connected to a telescopic column (6). The outer surface of the telescopic column (6) away from the first rotating seat (5) is rotatably connected to a second rotating seat (7). The bottom outer surface of the second rotating seat (7) is fixedly connected to a fixing nail (8).
2. A precast pipe pile connecting device according to claim 1, characterized in that: The top outer surfaces of the first ring (1) and the second ring (2) are provided with two arc-shaped grooves (9). The interior of each of the four arc-shaped grooves (9) is movably connected with a fixed column (10). The interior of each of the four fixed columns (10) is movably provided with a movable column (11). The top outer surfaces of the two movable columns (11) on the front side and the top outer surfaces of the two movable columns (11) on the rear side are fixedly connected with limit rings (12). The outer surface of the limit ring (12) on the front side is rotatably connected with a positive and negative screw rod (13). The outer surface of the positive and negative screw rod (13) is threadedly connected with two threaded plates (14). The outer surfaces of the two threaded plates (14) are provided with sliding plates (15). The opposite outer surfaces of the two threaded plates (14) and the opposite outer surfaces of the two sliding plates (15) are fixedly connected with arc-shaped clamps (16).
3. A precast pipe pile connecting device according to claim 2, wherein: A rectangular box (18) is fixedly connected to the outer surface of each of the four fixed columns (10). A limit rod (19) is movably passed through the outer surface of the rectangular box (18). A pull plate (20) is fixedly connected to the outer surface of the limit rod (19). A connecting plate (21) is fixedly connected to the inside of the rectangular box (18) of the limit rod (19). A spring (22) is fixedly connected to the outer surface of the connecting plate (21) near the pull plate (20). The other end of the spring (22) is fixedly connected to the inside of the rectangular box (18). The spring (22) is sleeved on the outer surface of the limit rod (19). A number of limit holes are equidistantly opened on the outer surface of the movable column (11).
4. A precast pipe pile connecting device according to claim 2, characterized in that: A sliding rod is fixedly inserted through the outer surface of the rear limiting ring (12), and two sliding plates (15) are movably sleeved on the outer surface of the sliding rod.
5. A precast pipe pile connecting device according to claim 4, wherein: The threaded plate (14) is fixedly connected to the side of the slide plate (15) near the threaded plate (14), and the slide plate (15) is provided with a slot on the side of the threaded plate (14).
6. A precast pipe pile connecting device according to claim 2, characterized in that: The outer surface of the arc-shaped clamp (16) is provided with a number of ball bearings (17).