High-strength anti-falling tubular pile end plate
By setting a fixing plate and a locking structure with irregular bolts on the end plate of the pipe pile, the problem of structural instability caused by bolt shaking is solved, achieving a high-strength anti-loosening effect and ensuring construction safety.
Patent Information
- Application Number
- CN202520375597.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-05
AI Technical Summary
The existing pipe pile end plates are prone to structural instability during pile driving due to bolt vibration, making them easy to loosen and fall off, which affects construction safety.
A fixing plate is welded onto the end plate body, and a special-shaped bolt is set on the fixing plate. The nut is provided with a locking groove. The locking protrusion of the locking part cooperates with the locking groove to realize the locking and positioning of the special-shaped bolt, so as to avoid shaking and loosening.
It effectively prevents the pipe pile end plate from shaking and loosening during the pile driving process, ensuring structural stability, avoiding detachment, and ensuring construction safety.
Smart Images

Figure CN223867214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe pile end plate technology, specifically a high-strength anti-fall-off pipe pile end plate. Background Technology
[0002] Pipe pile end plates are important components at both ends of precast pipe piles (such as prestressed concrete pipe piles and steel pipe piles). They play a crucial role in the production and construction of pipe piles. Pipe pile end plates are steel plates installed at both ends of the pipe pile, usually fixed by welding or bolts. They mainly serve to transfer loads, protect the pile body, and provide sealing and waterproofing. Many pipe pile end plates are connected by bolts. However, in actual pile driving, the impact force of pile driving can easily cause the bolts to shake, leading to instability in the bolt structure, easy shaking, and even loosening of the bolts. In this case, the structural stability of the pipe pile end plate cannot be guaranteed, which may cause the end plate to fall off, resulting in the end of the pipe pile cracking and affecting construction safety. Therefore, this utility model proposes a high-strength anti-fall-off pipe pile end plate to solve this problem. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a high-strength anti-detachment pipe pile end plate. A fixing plate is installed on the end plate body, and irregularly shaped bolts are arranged in an array on the fixing plate. The nuts of the irregularly shaped bolts have locking grooves. After the irregularly shaped bolts are installed, the annular body is fixed to one side of the end plate body, and the locking protrusion closes into the corresponding locking groove, achieving locking and positioning of the irregularly shaped bolts and preventing shaking during pile driving. This ensures the structural stability of the pipe pile end plate and solves the problem of poor structural stability of current pipe pile end plates.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A high-strength anti-fall-off pipe pile end plate includes an end plate body, on which an annular fixing plate is welded, and the fixing plate has an array of threaded holes. Each threaded hole of the fixing plate is threaded with a special-shaped bolt, which includes a screw threaded to the threaded hole and a nut fixedly connected to one end of the screw. A locking groove is provided on one side of the nut, and a locking element for locking and positioning the nut is provided on one side of the end plate body.
[0008] Furthermore, the locking member includes an annular body and a locking protrusion, wherein multiple locking protrusions are provided, and the array of multiple locking protrusions is fixed on the inner wall of the annular body, and the locking protrusions are adapted to the corresponding locking grooves.
[0009] Furthermore, a screw hole is provided on one side of both the annular body and the end plate body, and a screw is provided between the corresponding screw holes of the annular body and the end plate body.
[0010] Furthermore, the nut is provided with a hexagonal groove that extends to the outside of the nut.
[0011] Furthermore, the end plate body has an array of anchor holes distributed along the circumferential direction.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, this utility model provides a high-strength anti-fall-off pipe pile end plate, which has the following beneficial effects:
[0014] This invention relates to a method for fixing a pipe pile to an end plate body by welding a fixing plate with a ring-shaped design. A special-shaped bolt is installed at the threaded hole of the fixing plate, and the nut of the special-shaped bolt has a locking groove. During assembly, the end plate body is fixed to the pipe pile using the special-shaped bolt, with the opening of the locking groove facing outwards. A locking component is then fixed to one side of the end plate body. The main body of the locking component is a ring, and a locking protrusion is fixedly connected to the inner wall of the ring. The locking protrusion closes into the corresponding locking groove, achieving the locking effect of the special-shaped bolt through the cooperation between the locking protrusion and the locking groove. This method prevents the end plate body from shaking during pile driving, which could lead to the special-shaped bolt loosening. It also prevents the special-shaped bolt from rotating and loosening, thus avoiding the pipe pile end plate from falling off. This method effectively ensures the structural stability of the pipe pile end plate and guarantees construction safety. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the irregular bolt in this utility model;
[0017] Figure 3 This is a schematic diagram of the locking component in this utility model.
[0018] In the diagram: 1. End plate body; 2. Anchor hole; 3. Fixing plate; 4. Special bolt; 401. Screw; 402. Nut; 403. Hexagonal slot; 404. Locking groove; 5. Locking component; 501. Ring body; 502. Locking protrusion; 503. Screw; 504. Screw hole. Detailed Implementation
[0019] 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.
[0020] Example
[0021] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, an embodiment of the present invention provides a high-strength anti-fall-off pipe pile end plate, including an end plate body 1, an annular fixing plate 3 welded on the end plate body 1, and an array of threaded holes on the fixing plate 3. Each threaded hole of the fixing plate 3 is threaded with a special-shaped bolt 4. The special-shaped bolt 4 includes a screw 401 threadedly connected to the threaded hole, and a nut 402 fixedly connected to one end of the screw 401. A locking groove 404 is provided on one side of the nut 402, and a locking member 5 for locking and positioning the nut 402 is provided on one side of the end plate body 1.
[0022] It should be noted that the end plate body 1 is the main part of the pipe pile end plate, which protects the end of the column. A fixing plate 3 is welded to the end plate body 1. The fixing plate 3 is used for the installation of the special bolts 4. Then, the end plate body 1 is installed and fixed by the special bolts 4 and the fixing plate 3. The special bolts 4 are composed of a screw 401 and a nut 402. A locking groove 404 is provided on one side of the nut 402. The locking groove 404 can limit the position of the special bolts 4, preventing them from rotating or loosening during pile driving. This ensures the stability of the special bolts 4 and the stability of the entire pipe pile end plate, preventing the end plate body 1 from loosening and falling off. A locking member 5 is provided on one side of the end plate body 1. The locking member 5 can lock and position the special bolts 4. This solution can limit and protect the special bolts 4 by setting the locking member 5, preventing shaking during pile driving, and can well ensure the stability of the special bolts 4 and the end plate body 1.
[0023] like Figure 2 and Figure 3 As shown, in some embodiments, the locking member 5 includes an annular body 501 and locking protrusions 502. Multiple locking protrusions 502 are provided, and the array of multiple locking protrusions 502 is fixed on the inner wall of the annular body 501. The locking protrusions 502 are adapted to the corresponding locking grooves 404.
[0024] It should be noted that the annular body 501 is the main body of the locking component 5. By fixing and connecting the array of locking protrusions 502 on the inner wall of the annular body 501, the locking protrusions 502 are adapted to the corresponding locking grooves 404, so that the locking protrusions 502 can be engaged in the corresponding locking grooves 404. In this way, the locking and positioning of the entire irregular bolt 4 is achieved through the limiting relationship between the locking protrusions 502 and the locking grooves 404, which can prevent the irregular bolt 4 from rotating during piling, thereby ensuring the stability of the irregular bolt 4 and preventing the end plate body 1 from loosening and falling off.
[0025] like Figure 1 and Figure 3 As shown, in some embodiments, screw holes 504 are provided on one side of both the annular body 501 and the end plate body 1, and screws 503 are provided between the corresponding screw holes 504 of the annular body 501 and the end plate body 1.
[0026] It should be noted that the ring body 501 is installed and fixed by opening screw holes 504 on the ring body 501 and the end plate body 1, and by setting screws 503 at the corresponding screw holes 504.
[0027] like Figure 2 As shown, in some embodiments, a hexagonal slot 403 is provided on the nut 402, and the hexagonal slot 403 extends to the outside of the nut 402.
[0028] It should be noted that the hexagonal slot 403 facilitates the rotation and installation of the irregular bolt 4, allowing the irregular bolt 4 to extend to the threaded hole of the fixing plate 3, thereby fixing the end plate body 1 at the end of the pile.
[0029] like Figure 1 As shown, in some embodiments, the end plate body 1 has an array of rib anchor holes 2 distributed along the circumferential direction.
[0030] It should be noted that the anchor hole 2 can help optimize stress distribution, improve structural durability, and ensure the stability between structures.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-strength anti-fall-off pipe pile end plate, comprising an end plate body (1), characterized in that: The end plate body (1) is welded with a ring-shaped fixing plate (3), and the fixing plate (3) is provided with an array of threaded holes. The threaded holes of the fixing plate (3) are all threaded with special bolts (4). The special bolts (4) include a screw (401) threaded to the threaded hole and a nut (402) fixedly connected to one end of the screw (401). A locking groove (404) is provided on one side of the nut (402), and a locking member (5) for locking and positioning the nut (402) is provided on one side of the end plate body (1).
2. The high-strength anti-fall-off pipe pile end plate according to claim 1, characterized in that: The locking element (5) includes Ring-shaped (501); Locking protrusions (502) are provided in multiple ways. The array of multiple locking protrusions (502) is fixed on the inner wall of the annular body (501), and the locking protrusions (502) are adapted to the corresponding locking grooves (404).
3. The high-strength anti-fall-off pipe pile end plate according to claim 2, characterized in that: Both the annular body (501) and the end plate body (1) have screw holes (504) on one side, and screws (503) are provided between the corresponding screw holes (504) of the annular body (501) and the end plate body (1).
4. The high-strength anti-fall-off pipe pile end plate according to claim 1, characterized in that: The nut (402) has a hexagonal groove (403) extending to the outside of the nut (402).
5. A high-strength anti-fall-off pipe pile end plate according to claim 1, characterized in that: The end plate body (1) has arrayed anchor holes (2) along the circumferential direction.