Pipe pile connecting structure
By designing a limiting column, clamping plate, and screw structure, the problems of low connection efficiency and insufficient strength of pipe piles are solved, enabling rapid connection and convenient disassembly, and enhancing the torsional and tensile resistance of pipe piles.
Patent Information
- Application Number
- CN202423057393.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing pipe pile connection methods are inefficient, have insufficient connection strength, and are difficult to disassemble.
The structure employs a limiting post, clamping plate, and screw, enabling rapid connection of pipe piles through threaded connection. The limiting hole and clamping groove design enhance the connection strength, and the screw can be unscrewed for easy separation during disassembly.
It improves the efficiency and strength of pipe pile connections, enhances resistance to torsion and pull-out, and facilitates disassembly.
Smart Images
Figure CN223481824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe pile connection technology, and specifically to a pipe pile connection structure. Background Technology
[0002] Pipe piles are foundation engineering components made of steel pipes and concrete. They are installed in the foundation by driving or vibrating to sink, and are used to bear the load of the building and transfer it to the foundation. Under different geological conditions, the bearing capacity, stability, and soil type of the soil layer will vary. By connecting pipe piles, the pile length can be flexibly adjusted to adapt to different geological conditions, ensuring the safety and reliability of the pile foundation.
[0003] Currently, welding is the common method used to connect two pipe piles. However, welding results in low connection efficiency and a small connection area between the pipe piles, making it difficult to guarantee the connection strength. Furthermore, welding makes disassembly difficult when the two pipe piles need to be removed. Summary of the Invention
[0004] This utility model addresses the problems of low connection efficiency, low connection strength, and difficulty in disassembly when connecting pipe piles. It provides a pipe pile connection structure that can improve the efficiency of connection and disassembly between pipe piles and increase the connection strength between pipe piles.
[0005] To solve the above problems, the technical solution of this utility model is:
[0006] A pipe pile connection structure includes a lower pipe pile and an upper pipe pile, and further includes a connecting column, a limiting column, and a retaining plate. The connecting column is fixed to the upper end of the lower pipe pile. The top surface of the connecting column has a limiting hole recessed therein, and the side surface of the limiting hole has multiple grooves recessed therein. The top surface of the connecting column has a threaded hole that communicates with each groove. The lower end of the upper pipe pile is fixed to a connecting plate, and the bottom surface of the connecting plate has a limiting column that extends into the limiting hole. The limiting column has multiple retaining slots corresponding to the grooves. Each groove has a retaining plate. The outer end of the retaining plate is connected to the outer side of the groove via an elastic band, and the inner end extends into the retaining slot corresponding to the groove. The top surface of the retaining plate has a recessed groove, and the bottom surface is a sloping groove with a higher inner end and a lower outer end. Each threaded hole has a threaded rod connected to it. The lower end of the rod presses against the bottom surface of the sloping groove of the lower retaining plate, and the upper end of the rod movably passes through the connecting plate and is connected to the limiting plate.
[0007] Furthermore, the limiting hole is an upward-facing regular hexagonal hole, and the limiting post is a regular hexagonal post that corresponds to the limiting hole.
[0008] Furthermore, the slide groove is a rectangular groove, each side of the limiting hole is provided with a slide groove, and each side of the limiting post is provided with a slot, the slot being a rectangular groove with an opening opposite to the opening of the corresponding slide groove.
[0009] Furthermore, the connecting plate is provided with a through hole for the upper end of the screw to pass through; the side of the clamping plate is in sliding contact with the side of the sliding groove, one end of the clamping plate extending into the groove corresponds to the groove, and the width of the inclined groove corresponds to the diameter of the screw.
[0010] Furthermore, when the inner end of each of the card plates extends into the corresponding card slot, the lower end of the screw presses against the outer end of the inclined groove bottom surface of the lower card plate, the elastic band connected to the card plate is in a stretched state, and the limiting plate connected to the upper end of the screw contacts the top surface of the connecting plate.
[0011] Furthermore, when the elastic band connected to the card plate is in its natural state, the inner end of the card plate is located within the groove.
[0012] The beneficial effects of this utility model through the above technical solution are as follows:
[0013] In this invention, when connecting the upper and lower pipe piles, after the limiting post extends into the limiting hole, each screw is connected by a thread. The screw can drive the corresponding clamping plate to extend into the clamping groove on the limiting post, which can conveniently and quickly connect the upper and lower pipe piles.
[0014] This invention improves the torsional and tensile strength of the upper and lower pipe piles after they are connected, thereby enhancing their connectivity.
[0015] After each screw is unscrewed, the multiple clamping plates no longer limit the positioning post, making it easy to remove the positioning post from the positioning hole, and facilitating the disassembly of the upper and lower pipe piles. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a sectional front view of the present invention;
[0018] Figure 3 This is a schematic diagram of the connection between the upper pipe pile, connecting plate and limiting column of this utility model;
[0019] Figure 4 This is a structural schematic diagram (enlarged view) of the card plate of this utility model;
[0020] Figure 5 This is a top view of the connecting column of this utility model.
[0021] The attached diagram is labeled as follows: 1. Lower pipe pile, 2. Upper pipe pile, 3. Connecting column, 4. Limiting column, 5. Clamping plate, 6. Limiting hole, 7. Sliding groove, 8. Threaded hole, 9. Screw, 10. Connecting plate, 11. Limiting column, 12. Clamping groove, 13. Elastic band, 14. Inclined groove, 15. Screw, 16. Limiting plate, 17. Through hole. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0023] like Figures 1 to 5 As shown, a pipe pile connection structure includes a lower pipe pile 1 and an upper pipe pile 2, and also includes a connecting column 3, a limiting column 4, and a clamping plate 5. The connecting column 3 is a cylinder with a diameter larger than the outer diameter of the pipe pile. The connecting column 3 is coaxially fixed to the upper end of the lower pipe pile 1. The top surface of the connecting column 3 has a limiting hole 6 recessed. The side surface of the limiting hole 6 has multiple grooves 7 recessed. The opening of each groove 7 faces the central axis of the connecting column 3. The top surface of the connecting column 3 has a threaded hole 8 that communicates with each groove 7. The lower end of each threaded hole 8 penetrates the top surface of the corresponding groove 7. The lower end of the upper pipe pile 2 is coaxially fixed to a connecting plate 10. The connecting plate 10 is a circular plate with a diameter larger than the outer diameter of the upper pipe pile 2. The bottom surface of the connecting plate 10 is fixed with an extension limiting plate 5. The limiting post 4 is located in the positioning hole 6; the limiting post 4 is provided with a plurality of slots 12 corresponding to the sliding groove 7, and each sliding groove 7 is provided with a retaining plate 5. The outer end of the retaining plate 5 is connected to the outer side of the sliding groove 7 via an elastic band 13, and the inner end extends into the slot 12 corresponding to the sliding groove 7. The outer side of the sliding groove is the side opposite to the opening of the sliding groove. The elastic band is a band made of elastic rubber. The inner end of the retaining plate 5 is one end facing the central axis of the connecting post 3, and the other end is the outer end. The top surface of the retaining plate 5 is recessed with a sloping groove 14 with the bottom surface being higher at the inner end and lower at the outer end. Each threaded hole 8 is threaded with a screw 9. The lower end of the screw 9 presses against the bottom surface of the sloping groove 14 of the lower retaining plate 5, and the upper end of the screw 9 moves through the connecting plate 10 and is connected to the limiting plate 16.
[0024] The limiting hole 6 is a regular hexagonal hole with the opening facing upwards, and the limiting post 4 is a regular hexagonal post that corresponds to the limiting hole 6.
[0025] The slide groove 7 is a rectangular groove, and each side of the limiting hole 6 is provided with a slide groove 7. Each side of the limiting post 4 is provided with a slot 12, and the slot 12 is a rectangular groove with an opening opposite to the opening of the corresponding slide groove 7.
[0026] The connecting plate 10 is provided with a through hole 17 for the upper end of the screw 9 to pass through; the clamping plate 5 is a rectangular plate, the side of the clamping plate 5 slides in contact with the side of the sliding groove 7, one end of the clamping plate 5 extends into the clamping groove 12 and matches the clamping groove 12, the width of the inclined groove 14 matches the diameter of the screw 9, and the inner and outer ends of the inclined groove 14 respectively penetrate the inner and outer end faces of the clamping plate 5.
[0027] When the inner end of each of the card plates 5 extends into the corresponding card slot 12, the lower end of the screw 9 presses against the outer end of the bottom surface of the inclined groove 14 of the lower card plate 5, the elastic band 13 connected to the card plate 5 is in a stretched state, and the limiting plate 16 connected to the upper end of the screw 9 contacts the top surface of the connecting plate 10.
[0028] When the elastic band 13 connected to the card plate 5 is in its natural state, the inner end of the card plate 5 is located in the groove 7, which is to facilitate the insertion of the limiting post 4 into the limiting hole 6.
[0029] During installation, the screw rods 9 are not initially connected to the threaded holes 8. At this time, the retaining plates 5 in each groove 7 are not pressed by the screw rods 9, and the elastic bands connected to the retaining plates 5 are in a natural state. The inner end of each retaining plate 5 is located in its respective groove 7. The lower pipe pile 1 is in a vertical state, and the connecting column 3 is also in a vertical state along with the lower pipe pile 1. The upper pipe pile 2 is hoisted and moves from top to bottom. The limiting column 4 is in a vertical state along with the upper pipe pile 2 and extends into the limiting hole 6 of the connecting column 3 until the limiting column 4 is completely inserted into the limiting hole 6. At this time, the retaining groove 12 on the limiting column 4 opens. All screws 9 are oriented towards the corresponding groove 7. Each through hole 17 on the connecting plate 10 corresponds to a threaded hole 8. The lower end of each screw 9 passes through the corresponding through hole 17. The screw 9 is threaded into the corresponding threaded hole. The lower end of the screw 9 extends into the inclined groove of the corresponding clamping plate 5 on the lower side. When the screw 9 moves downward, the lower end of the screw 9 presses against the bottom surface of the inclined groove 14, driving the inner end of the clamping plate 5 to extend into the corresponding clamping groove 12 until the limiting plate 16 on the screw 9 contacts the top surface of the connecting plate 10. The connection between the upper pipe pile 2 and the lower pipe pile 1 is completed.
[0030] Since the connecting plate 10 and the connecting column 3 are connected by multiple screws 9, the limiting column 4 is a regular hexagonal prism, and the limiting hole 6 is a regular hexagonal hole, which can improve the torsional resistance of the upper pipe pile 2 and the lower pipe pile 1; the upper end of each screw 9 is connected to a limiting plate 16 that contacts the connecting plate 10, and each slot 12 on the limiting column 4 is limited by the locking plate 5. Therefore, this utility model can improve the pull-out resistance of the upper pipe pile 2 and the lower pipe pile 1.
[0031] When disassembly is required, unscrew the screw 9 in each threaded hole. The bottom surface of the inclined groove 14 on each clamping plate 5 is no longer pressed. Under the restoring force of the elastic band 13 connected to the clamping plate 5, the inner end of the clamping plate 5 returns to the groove 7. The limiting post 4 is no longer limited, and the limiting post 4 can be easily removed from the limiting hole 6. The upper pipe pile 2 and the lower pipe pile 1 are easy to disassemble.
[0032] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.
Claims
1. A pipe pile connection structure, comprising a lower pipe pile (1) and an upper pipe pile (2), characterized in that, It also includes a connecting column (3), a limiting column (4), and a clamping plate (5). The connecting column (3) is fixed to the upper end of the lower pipe pile (1). The top surface of the connecting column (3) has a limiting hole (6). The side of the limiting hole (6) has multiple grooves (7). The top surface of the connecting column (3) has a threaded hole (8) that communicates with each groove (7). The lower end of the upper pipe pile (2) is fixed with a connecting plate (10). The bottom surface of the connecting plate (10) is fixed with a limiting column (4) that extends into the limiting hole (6). The limiting column (4) is provided with multiple grooves (8) that communicate with each groove (8). 7) Corresponding slot (12), each slide (7) is provided with a card plate (5). The outer end of the card plate (5) is connected to the outer side of the slide (7) via an elastic band (13), and the inner end extends into the corresponding slot (12) of the slide (7). The top surface of the card plate (5) is recessed with a sloping groove (14) with the inner end higher than the outer end. Each threaded hole (8) is threaded with a screw (9). The lower end of the screw (9) presses against the bottom surface of the sloping groove (14) of the lower card plate (5). The upper end of the screw (9) moves through the connecting plate (10) and is connected to the limiting plate (16).
2. The pipe pile connection structure according to claim 1, characterized in that, The limiting hole (6) is a regular hexagonal hole with the opening facing upwards, and the limiting post (4) is a regular hexagonal post that corresponds to the limiting hole (6).
3. The pipe pile connection structure according to claim 2, characterized in that, The slide (7) is a rectangular groove, and each side of the limiting hole (6) is provided with a slide (7). Each side of the limiting post (4) is provided with a slot (12). The slot (12) is a rectangular groove with an opening opposite to the opening of the corresponding slide (7).
4. The pipe pile connection structure according to claim 3, characterized in that, The connecting plate (10) is provided with a through hole (17) through which the upper end of the screw (9) passes; the side of the clamping plate (5) slides in contact with the side of the sliding groove (7), one end of the clamping plate (5) extends into the clamping groove (12) and matches the clamping groove (12), and the width of the inclined groove (14) matches the diameter of the screw (9).
5. The pipe pile connection structure according to claim 4, characterized in that, When the inner end of each of the card plates (5) extends into the corresponding card slot (12), the lower end of the screw (9) presses against the outer end of the bottom surface of the inclined groove (14) of the lower card plate (5), the elastic band (13) connected to the card plate (5) is in a stretched state, and the limiting plate (16) connected to the upper end of the screw (9) contacts the top surface of the connecting plate (10).
6. A pipe pile connection structure according to claim 5, characterized in that, When the elastic band (13) connected to the card plate (5) is in its natural state, the inner end of the card plate (5) is located in the groove (7).