A device for filling concrete at the joint of prestressed concrete pipe piles

By designing a limiting ring and a threaded connection device at the joint of the prestressed concrete pipe pile, the overflow problem during concrete pouring was solved, achieving convenient installation and overflow prevention.

CN224281286UActive Publication Date: 2026-05-26NINGBO DONGXIN CONSTR

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DONGXIN CONSTR
Filing Date
2025-04-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing prestressed concrete pipe piles lack fixed connection and installation devices at the pile joints, which makes it easy for concrete to overflow during pouring and is inconvenient to operate.

Method used

A device comprising a limiting ring, a fixing block, a screw, a connecting rod, a threaded rod, and a rotating rod is designed. The limiting ring is fixed by threaded connection and rotation operation to prevent concrete overflow and increase the operator's power arm for rotation.

Benefits of technology

It effectively prevents concrete overflow at the pile joint, improves the convenience of operation and the accuracy of installation, and saves resources.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224281286U_ABST
    Figure CN224281286U_ABST
Patent Text Reader

Abstract

This utility model discloses a core-filling concrete grouting device for the splice of prestressed concrete pipe piles, including a concrete pipe pile. A limit ring is fitted onto the inner wall of the concrete pipe pile. The core-filling concrete grouting device for the splice of prestressed concrete pipe piles uses a screw to rotate and tighten a fixing block to fit tightly against the inner wall of the concrete pipe pile, facilitating the installation of the limit ring. When the connecting rod rotates, it drives the splice assembly and the screw to rotate. The screw is threadedly connected to the concrete pipe pile assembly, causing the splice assembly to press against the limit ring, thus pressing the lower end of the concrete pipe pile against the concrete pipe pile assembly. This prevents concrete from overflowing from the splice joint during later concrete pouring. By inserting an internal hexagonal socket into a hexagonal slot, rotating the handle drives the rotating rod, support block, and internal hexagonal socket to rotate, facilitating the rotation of the connecting rod and tightening the screw threaded connection to the concrete pipe pile assembly. The design of the rotating rod, handle, and anti-slip sleeve increases the power arm, making it easier for the operator to rotate the connecting rod.
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Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically a core-filling concrete grouting device for the joint of prestressed concrete pipe piles. Background Technology

[0002] Prestressed concrete pipe piles are suitable for the foundation structures of large buildings, transferring the building's load to the soil bearing layer or a harder ground, thereby increasing the safety and stability of the building structure. Due to their high strength, high stability, and high durability, as well as their rapid construction, prestressed concrete pipe piles are a frequently used type of pile foundation.

[0003] Currently, existing utility models provide a core-filling concrete grouting device for the splicing of prestressed concrete pipe piles, which can effectively facilitate the connection of multiple sections of concrete pipe piles, improve the accuracy of the connection and prevent misalignment, facilitate installation, thereby speeding up the installation process, saving resources, and also facilitating transportation.

[0004] For example, the core-filling concrete pouring device for the splice of prestressed concrete pipe piles disclosed in authorized public account CN215105255U includes two identical first splice assemblies and second splice assemblies. The first splice assembly and the second splice assembly are respectively installed inside the first prestressed concrete pipe pile and the second prestressed concrete pipe pile, and the first splice assembly and the second splice assembly are connected together by a connecting pipe. However, in such a core-filling concrete pouring device for the splice of prestressed concrete pipe piles, the lack of a fixed connection and installation device between the first prestressed concrete pipe pile and the second prestressed concrete pipe pile during concrete pouring makes it easy for concrete to overflow from the gap, and it is also inconvenient for the operator to rotate the first splice assembly with ease.

[0005] As can be seen from the solutions disclosed in the existing patent documents, when pouring concrete, the lack of a fixed connection and installation device for the first prestressed concrete pipe pile and the second prestressed concrete pipe pile makes it easy for concrete to overflow from the gap, and it is inconvenient for the operator to rotate the first pile assembly. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this utility model is to provide a core-filling concrete grouting device for the splicing of prestressed concrete pipe piles, so as to solve the problem that when pouring concrete, the gap between the first prestressed concrete pipe pile and the second prestressed concrete pipe pile lacks a fixed connection and installation device, which makes it easy for concrete to overflow outward and the operator to rotate the first splicing assembly.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a core-filling concrete grouting device for the splice of a prestressed concrete pipe pile, comprising a concrete pipe pile, a limiting ring sleeved on the inner wall of the concrete pipe pile, a fixing block fixedly welded to the lower end face of the limiting ring, a screw threadedly connected to the inside of the fixing block, a splice assembly sleeved inside the concrete pipe pile, a splice rod installed inside the splice assembly, a screw fixedly welded to the lower end of the splice rod, a threaded hole provided inside the upper end of the splice rod, a hexagonal groove provided inside the upper end of the splice rod, an internal hexagonal socket inserted into the hexagonal groove, a support block fixedly welded to the upper end of the internal hexagonal socket, and a rotating rod fixedly welded to the upper end of the support block.

[0008] Preferably, one side of the fixing block is tightly attached to the concrete pipe pile, and one end of the screw is threaded to the concrete pipe pile. By rotating and tightening the screw, the fixing block is driven to be tightly attached to the inner wall of the concrete pipe pile, which facilitates the fixed installation of the limiting ring.

[0009] Preferably, the lower end face of the pile splicing assembly is tightly abutted against the limiting ring, and the lower end of the concrete pipe pile is tightly abutted against the concrete pipe pile assembly. When the splicing rod rotates, it drives the pile splicing assembly and the screw to rotate. The screw is threadedly connected to the concrete pipe pile assembly, which drives the pile splicing assembly to press against the limiting ring, so that the lower end of the concrete pipe pile presses against the concrete pipe pile assembly, which can prevent concrete from overflowing from the connection of the concrete pipe pile during the later pouring of concrete.

[0010] Preferably, the lower end of the screw is threadedly connected to a concrete pipe pile assembly. The hexagonal slot and the threaded hole are connected. By inserting the internal hexagonal socket into the hexagonal slot and rotating the handle, the rotating rod, the support block and the internal hexagonal socket are rotated, which facilitates the rotation of the connecting rod so that the screw is fastened to the threaded connection of the concrete pipe pile assembly.

[0011] Preferably, a handle is fixedly connected to one end of the rotating rod, and an anti-slip sleeve is tightly fitted to the outside of the handle. The design of the rotating rod, handle, and anti-slip sleeve can increase the power arm and make it convenient for the operator to rotate the docking rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. One side of the fixing block of this utility model is tightly attached to the concrete pipe pile, and one end of the screw is connected to the concrete pipe pile through the thread. By rotating and tightening the screw, the fixing block is moved to tightly attach to the inner wall of the concrete pipe pile, which facilitates the fixed installation of the limiting ring.

[0014] 2. The lower end face of the pile splicing assembly of this utility model is closely attached to the limiting ring, and the lower end of the concrete pipe pile is closely attached to the concrete pipe pile assembly. When the splicing rod rotates, it drives the pile splicing assembly and the screw to rotate. The screw is threadedly connected to the concrete pipe pile assembly, which drives the pile splicing assembly to press the limiting ring, so that the lower end of the concrete pipe pile presses against the concrete pipe pile assembly, which can prevent concrete from overflowing from the connection of the concrete pipe pile during the later pouring of concrete.

[0015] 3. The lower end of the screw of this utility model is connected to the concrete pipe pile assembly by a thread. The hexagonal groove and the threaded hole are connected. By inserting the inner hexagonal into the hexagonal groove, turning the handle drives the rotating rod, the support block and the inner hexagonal to rotate, which facilitates the rotation of the connecting rod so that the screw is fastened to the threaded connection of the concrete pipe pile assembly.

[0016] 4. One end of the rotating rod of this utility model is fixedly connected to a handle, and an anti-slip sleeve is tightly fitted on the outside of the handle. The design of the rotating rod, handle and anti-slip sleeve can increase the power arm and make it convenient for the operator to rotate the docking rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged view of section A of this utility model;

[0019] Figure 3 This is a top enlarged view of the connecting rod of this utility model.

[0020] In the diagram: 1 Concrete pipe pile, 11 Limiting ring, 12 Fixing block, 13 Screw, 14 Pipe splice assembly, 15 Connecting rod, 16 Screw, 17 Concrete pipe pile assembly, 2 Threaded hole, 21 Hexagonal groove, 22 Internal hexagon, 23 Support block, 24 Rotating rod, 25 Handle, 26 Anti-slip sleeve. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Please see Figure 1-3The diagram shows a prestressed concrete pipe pile splice filling concrete grouting device, including a concrete pipe pile 1, a limiting ring 11 sleeved on the inner wall of the concrete pipe pile 1, a fixing block 12 fixedly welded to the lower end face of the limiting ring 11, a screw 13 threadedly connected inside the fixing block 12, a splice assembly 14 sleeved inside the concrete pipe pile 1, a splice rod 15 installed inside the splice assembly 14, a screw 16 fixedly welded to the lower end of the splice rod 15, a threaded hole 2 inside the upper end of the splice rod 15, a hexagonal groove 21 inside the upper end of the splice rod 15, an internal hexagonal socket 22 inserted into the hexagonal groove 21, a support block 23 fixedly welded to the upper end of the internal hexagonal socket 22, and a rotating rod 24 fixedly welded to the upper end of the support block 23.

[0024] To prevent concrete from overflowing from the connection point of the concrete pipe pile 1 during later concrete pouring, one side of the fixing block 12 is tightly attached to the concrete pipe pile 1, and one end of the screw 13 is threadedly connected to the concrete pipe pile 1. By rotating and tightening the screw 13, the fixing block 12 is driven to be tightly attached to the inner wall of the concrete pipe pile 1, which facilitates the fixed installation of the limiting ring 11. The lower end face of the pile connection assembly 14 is tightly attached to the limiting ring 11, and the lower end of the concrete pipe pile 1 is tightly attached to the concrete pipe pile assembly 17. When the connecting rod 15 is rotated, it drives the pile connection assembly 14 and the screw rod 16 to rotate. The screw rod 16 is threadedly connected to the concrete pipe pile assembly 14, which drives the pile connection assembly 14 to press the limiting ring 11, so that the lower end of the concrete pipe pile 1 is pressed against the concrete pipe pile assembly 17, which can prevent concrete from overflowing from the connection point of the concrete pipe pile 1 during later concrete pouring.

[0025] In this embodiment, rotating the tightening screw 13 causes the fixing block 12 to be tightly attached to the inner wall of the concrete pipe pile 1, which facilitates the fixed installation of the limiting ring 11. When the connecting rod 15 rotates, it drives the pile connection assembly 14 and the screw 16 to rotate. The screw 16 is threadedly connected to the concrete pipe pile assembly 14, which drives the pile connection assembly 14 to press the limiting ring 11, so that the lower end of the concrete pipe pile 1 presses against the concrete pipe pile assembly 17, which can prevent concrete from overflowing from the connection of the concrete pipe pile 1 during the later pouring of concrete.

[0026] Example 2

[0027] Please see Figure 1-3This embodiment further illustrates Example 1. The illustrated prestressed concrete pipe pile splice filling concrete grouting device includes a concrete pipe pile 1. A limiting ring 11 is sleeved on the inner wall of the concrete pipe pile 1. A fixing block 12 is fixedly welded to the lower end face of the limiting ring 11. A screw 13 is threadedly connected inside the fixing block 12. A splice assembly 14 is sleeved inside the concrete pipe pile 1. A splice rod 15 is installed inside the splice assembly 14. A screw 16 is fixedly welded to the lower end of the splice rod 15. A threaded hole 2 is provided inside the upper end of the splice rod 15. A hexagonal groove 21 is provided inside the upper end of the splice rod 15. An internal hexagonal jack 22 is inserted into the hexagonal groove 21. A support block 23 is fixedly welded to the upper end of the internal hexagonal jack 22. A rotating rod 24 is fixedly welded to the upper end of the support block 23.

[0028] To facilitate the rotation of the connecting rod 15, the lower end of the screw 16 is threadedly connected to the concrete pipe pile assembly 17. The hexagonal slot 21 and the threaded hole 2 are connected. By inserting the inner hexagonal socket 22 into the hexagonal slot 21, rotating the handle 25 drives the rotating rod 24, the support block 23 and the inner hexagonal socket 22 to rotate, which facilitates the rotation of the connecting rod 15 so that the screw 16 is tightly threadedly connected to the concrete pipe pile assembly 17. One end of the rotating rod 24 is fixedly connected to the handle 25, and the outer side of the handle 25 is tightly fitted with an anti-slip sleeve 26. The design of the rotating rod 24, the handle 25 and the anti-slip sleeve 26 can increase the power arm and make it easier for the operator to rotate the connecting rod 15.

[0029] In this embodiment, by inserting the internal hexagonal socket 22 into the hexagonal slot 21, rotating the handle 25 drives the rotating rod 24, the support block 23 and the internal hexagonal socket 22 to rotate, which facilitates the rotation of the docking rod 15 so that the screw 16 can be tightened to the threaded connection of the concrete pipe pile assembly 17. The design of the rotating rod 24, the handle 25 and the anti-slip sleeve 26 can increase the power arm and make it easier for the operator to rotate the docking rod 15.

[0030] The filling concrete grouting device at the joint of the prestressed concrete pipe pile uses a screw tightening screw 13 to drive the fixing block 12 to fit tightly against the inner wall of the concrete pipe pile 1, facilitating the installation of the limiting ring 11. When the connecting rod 15 rotates, it drives the joint assembly 14 and the screw 16 to rotate. The screw 16 is threadedly connected to the concrete pipe pile assembly 14, causing the joint assembly 14 to press the limiting ring 11, so that the lower end of the concrete pipe pile 1 presses against the concrete pipe pile assembly 17, which can prevent concrete from overflowing from the joint of the concrete pipe pile 1 during later concrete pouring. By inserting the hexagonal socket 22 into the hexagonal slot 21, rotating the handle 25 drives the rotating rod 24, the support block 23 and the hexagonal socket 22 to rotate, which facilitates the rotation of the connecting rod 15, so that the screw 16 is threadedly connected to the concrete pipe pile assembly 17. The design of the rotating rod 24, the handle 25 and the anti-slip sleeve 26 can increase the power arm, making it easier for the operator to rotate the connecting rod 15.

[0031] 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 core-filling concrete pouring device for the splice of a prestressed concrete pipe pile, comprising a concrete pipe pile (1), characterized in that: The inner wall of the concrete pipe pile (1) is fitted with a limiting ring (11). A fixing block (12) is fixedly welded to the lower end face of the limiting ring (11). A screw (13) is threadedly connected inside the fixing block (12). A pile connection assembly (14) is fitted inside the concrete pipe pile (1). A connecting rod (15) is installed inside the pile connection assembly (14). A screw (16) is fixedly welded to the lower end of the connecting rod (15). A threaded hole (2) is provided inside the upper end of the connecting rod (15). A hexagonal groove (21) is provided inside the upper end of the connecting rod (15). An internal hexagonal socket (22) is inserted into the hexagonal groove (21). A support block (23) is fixedly welded to the upper end of the internal hexagonal socket (22). A rotating rod (24) is fixedly welded to the upper end of the support block (23).

2. The filling concrete pouring device for the splice of a prestressed concrete pipe pile according to claim 1, characterized in that: One side of the fixing block (12) is in close contact with the concrete pipe pile (1), and one end of the screw (13) is connected to the concrete pipe pile (1) by thread.

3. The filling concrete pouring device for the splice of a prestressed concrete pipe pile according to claim 1, characterized in that: The lower end face of the pile assembly (14) is in close contact with the limiting ring (11), and the lower end of the concrete pipe pile (1) is in close contact with the concrete pipe pile assembly (17).

4. The filling concrete pouring device for the splice of a prestressed concrete pipe pile according to claim 1, characterized in that: The lower end of the screw (16) is connected to a concrete pipe pile assembly (17) by a thread, and the hexagonal groove (21) and the threaded hole (2) are connected.

5. The filling concrete pouring device for the splice of a prestressed concrete pipe pile according to claim 1, characterized in that: One end of the rotating rod (24) is fixedly connected to a handle (25), and an anti-slip sleeve (26) is fastened to the outside of the handle (25).