A pipe pile uplift anchoring device

By designing the connection structure of the screw and positioning plate, the problem of time-consuming and labor-intensive traditional pipe pile pull-out devices is solved, realizing rapid and labor-saving pull-out tests and adaptability to different pile diameters, improving assembly and disassembly efficiency and tensile strength.

CN224338310UActive Publication Date: 2026-06-09XIAMEN JIEHANG ENG TESTING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN JIEHANG ENG TESTING TECH CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional pipe pile pull-out anchoring devices require pre-embedded anchoring steel bars and concrete pouring, which is time-consuming and labor-intensive, and cannot quickly conduct pull-out tests.

Method used

A pipe pile anti-pull-out anchoring device was designed, which adopts a screw, positioning plate and locking plate structure, and achieves direct anchoring through threaded connection and welding, eliminating the steps of concrete filling and waiting for curing.

Benefits of technology

It enables rapid, time-saving, and labor-saving pull-out tests for pipe piles, and is applicable to pipe piles of different diameters, improving disassembly and assembly efficiency and tensile strength.

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Abstract

This utility model discloses a pipe pile pull-out anchoring device, belonging to the field of pipe pile technology. It includes four sets of screws threadedly connected to a load-bearing base, four sets of positioning plates fixedly connected to locking plates, four sets of connecting plates fixedly connected to the outer sides of the positioning plates, and four sets of positioning sleeves fixedly connected to the connecting plates. The four sets of screws are threadedly connected to the four sets of positioning sleeves. Multiple sets of welding seats are fixedly connected to the other side of the four sets of positioning plates, with welding columns between corresponding pairs of welding seats. Multiple bolts are also provided on the locking plates, with locking nuts on the bolts. A connecting seat is fixedly connected to the bottom of the load-bearing base, and a crossbeam is fixedly connected to the bottom of the connecting seat. This utility model eliminates the need for pouring concrete to fill the core and anchor the tensile reinforcement, and allows for direct anchoring of the tested pipe pile to begin pull-out testing after a certain curing period, saving time and effort. It can also directly anchor pipe piles of different diameters under test, saving money.
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Description

Technical Field

[0001] This utility model relates to the field of pipe pile technology, specifically to a pipe pile anti-pull-out anchoring device. Background Technology

[0002] The pull-out test of pipe piles is a key test for evaluating the pull-out bearing capacity and deformation performance of pipe piles under pull-out loads. It is mainly used to verify the rationality of pile foundation design and engineering safety, determine the ultimate pull-out bearing capacity of pipe piles, and verify whether it meets the design requirements; analyze the distribution of frictional resistance and failure modes between the pile body and the soil; and provide a basis for optimizing the design parameters of pull-out piles (such as pile length, pile diameter, and reinforcement ratio).

[0003] Traditional pipe pile pull-out anchoring devices often require pre-embedding a sufficient amount of anchoring steel bars in the center of the pipe pile and pouring a certain depth of micro-expansion concrete. The pull-out anchoring device can only be tested after the concrete has solidified, which is time-consuming and labor-intensive.

[0004] Based on this, the present invention designs a pipe pile anti-pull-out anchoring device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a pipe pile anti-pull-out anchoring device to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe pile anti-pull-out anchoring device, comprising four sets of screws threadedly connected to a load-bearing seat, four sets of positioning plates fixedly connected to locking plates, four sets of connecting plates fixedly connected to the outer side of the four sets of positioning plates, four sets of positioning sleeves fixedly connected to the four sets of connecting plates, four sets of screws threadedly connected to four sets of positioning sleeves, multiple sets of welding seats fixedly connected to the other side of the four sets of positioning plates, welding columns provided between corresponding two sets of welding seats, multiple bolts provided on the locking plates, locking nuts provided on the bolts, connecting seats fixedly connected to the bottom of the load-bearing seat, and crossbeams fixedly connected to the bottom of the connecting seats.

[0007] By adopting the above technical solution, it is not necessary to pour concrete to fill the core and anchor the tensile reinforcement. After waiting for a certain age, the tested pipe pile can be directly anchored to start the pull-out test; it is possible to directly anchor pipe piles of different diameters to be tested for pull-out resistance.

[0008] Preferably, a clamping part is fixedly connected to the middle position of the four sets of screws.

[0009] By adopting the above technical solution, the screw can be easily disassembled and assembled.

[0010] Preferably, each of the four sets of screws is threaded with an anti-disengagement sleeve, and the four sets of anti-disengagement sleeves are respectively pressed against the bottom of the positioning sleeve during use.

[0011] By adopting the above technical solution, the tensile strength of the screw is improved.

[0012] Preferably, the bolts and welded columns are arranged in an alternating pattern among the four sets of positioning plates.

[0013] Preferably, the inner sides of all four sets of positioning plates are provided with anti-slip textures.

[0014] By adopting the above technical solution, the friction between the positioning plate and the pipe pile is increased.

[0015] In summary, this application has the following beneficial technical effects:

[0016] 1. It does not require pouring concrete to fill the core and anchor the tensile reinforcement, and can directly anchor the tested pipe pile to start the pull-out test after a certain age, saving time and effort; it can directly anchor tested pipe piles of different diameters, saving money.

[0017] 2. Furthermore, the clamping part facilitates the assembly and disassembly of the screw, thereby improving its assembly and disassembly efficiency. The anti-disengagement sleeve further enhances the tensile strength of the screw, increasing its performance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0020] Figure 2 This is a schematic diagram of the front structure of this embodiment;

[0021] Figure 3 This is a side view diagram of the embodiment.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Positioning plate; 2. Load-bearing seat; 3. Screw; 4. Locking plate; 5. Connecting plate; 6. Positioning sleeve; 7. Anti-disengagement sleeve; 8. Welding seat; 9. Welding column; 10. Bolt; 11. Locking nut; 12. Connecting seat; 13. Crossbeam; 14. Clamping part. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0026] A pipe pile anti-pull-out anchoring device includes four sets of positioning plates 1, load-bearing seats 2, and four sets of screws 3. The four sets of screws 3 have a certain degree of toughness and will deform when the pipe pile is locked by the positioning plates 1. All four sets of screws 3 are threadedly connected to the load-bearing seats 2. The four sets of positioning plates 1 are all arc-shaped plates, which can fit well around the pipe pile. Locking plates 4 are fixedly connected to each of the four sets of positioning plates 1. Connecting plates 5 are fixedly connected to the outer sides of each of the four sets of positioning plates 1. Positioning sleeves 6 are fixedly connected to each of the four sets of connecting plates 5. The four sets of screws 3 are threadedly connected to the four sets of positioning sleeves 6. On the other side of each of the four sets of positioning plates 1, multiple sets of welding seats 8 are fixedly connected. Welding columns 9 are provided between two corresponding sets of welding seats 8, which can lock the two sets of positioning plates 1 from this direction. Multiple bolts 10 are also provided on the locking plate 4, and locking nuts 11 are provided on the bolts 10. The two sets of locking plates 4 can be locked by the cooperation of the locking nuts 11 and the bolts 10. A connecting seat 12 is fixedly connected to the bottom of the load-bearing seat 2, and a crossbeam 13 is fixedly connected to the bottom of the connecting seat 12. The crossbeam 13 is lifted upward, thereby enabling the pull-out resistance of the pipe pile to be tested.

[0027] Furthermore, a clamping part 14 is fixedly connected in the middle of the four sets of screws 3, which makes it easy to assemble and disassemble the screws 3.

[0028] Furthermore, each of the four sets of screws 3 is threaded with an anti-disengagement sleeve 7. When in use, the four sets of anti-disengagement sleeves 7 are pressed against the bottom of the positioning sleeve 6, which can improve the tensile strength of the screws 3.

[0029] Furthermore, the bolts 10 and the welded column 9 are arranged in an alternating pattern among the four sets of positioning plates 1, which can lock the four sets of positioning plates 1, thereby enabling the pipe pile to be locked in a good manner.

[0030] Furthermore, anti-slip textures are provided on the inner side of each of the four positioning plates 1, which can further enhance the anti-slip capability.

[0031] The implementation principle of this embodiment is as follows: In use, first, the top ends of the four sets of screws 3 are threaded onto the bearing seats 2. Then, the four sets of positioning plates 1 are respectively fitted onto the four sets of screws 3. Next, the four sets of positioning plates 1 are installed at the same horizontal height. Then, the corresponding welding columns 9 are placed on the corresponding welding seats 8, and then fastened by welding (e.g., ...). Figure 1 (As shown), then the positioning plate 1 is fitted onto the outside of the pipe pile, and then multiple sets of bolts 10 are inserted. Locking nuts 11 are then fitted onto the positioning plate 1 in sequence to lock it, so that the positioning plate 1 can be firmly attached to the outside of the pipe pile. Then, the crossbeam 13 is lifted upward to test its pull-out resistance.

[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] 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 pipe pile anti-pull-out anchoring device, comprising four sets of screws (3) all threadedly connected to a load-bearing base (2), characterized in that: Locking plates (4) are fixedly connected to each of the four sets of positioning plates (1). Connecting plates (5) are fixedly connected to the outside of each of the four sets of positioning plates (1). Positioning sleeves (6) are fixedly connected to each of the four sets of connecting plates (5). The four sets of screws (3) are threadedly connected to the four sets of positioning sleeves (6). Multiple sets of welding seats (8) are fixedly connected to the other side of each of the four sets of positioning plates (1). Welding columns (9) are provided between the corresponding two sets of welding seats (8). Multiple bolts (10) are also provided on the locking plates (4). Locking nuts (11) are provided on the bolts (10). Connecting seats (12) are fixedly connected to the bottom of the load-bearing seat (2). A crossbeam (13) is fixedly connected to the bottom of the connecting seats (12).

2. The anti-pull-out anchoring device for pipe piles according to claim 1, characterized in that: The clamping part (14) is fixedly connected to the middle position of the four sets of screws (3).

3. The anti-pull-out anchoring device for pipe piles according to claim 1, characterized in that: Each of the four sets of screws (3) is threaded with an anti-disengagement sleeve (7), and the four sets of anti-disengagement sleeves (7) are pressed against the bottom of the positioning sleeve (6) during use.

4. The anti-pull-out anchoring device for pipe piles according to claim 1, characterized in that: The bolts (10) and the welded column (9) are arranged in an alternating pattern among the four sets of positioning plates (1).

5. The anti-pullout anchoring device for pipe piles according to claim 1, characterized in that: The inner side of each of the four positioning plates (1) is provided with anti-slip texture.