Turnover simple steel pipe pipeline butt joint adjusting device

By combining the positioning ring and the triangular pin, the problems of low efficiency, high labor intensity and poor applicability in the existing technology of pipe docking are solved, realizing fast and convenient pipe alignment and welding, and improving construction efficiency and applicability.

CN224587371UActive Publication Date: 2026-08-04THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
Filing Date
2025-07-09
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing pipe connection methods are inefficient, labor-intensive, and have poor applicability. They also require multiple rotations of fasteners or temporary support devices, making it difficult to achieve fast, convenient, and accurate alignment and welding.

Method used

The system employs a positioning ring and triangular pin structure. The positioning rings are pointed and evenly distributed at the pipe interface. The triangular pins are inserted into the positioning rings and abut against the outer wall of the pipe. They are fixed by temporary spot welding to form a stable triangular system, simplifying the operation process.

Benefits of technology

It enables rapid, convenient, and precise alignment and fixing of pipelines, improving construction efficiency. It is highly applicable, has ample welding space, is highly tool-based, and can be reused.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a simple and easy steel pipe pipeline butt joint adjusting device can turnover, it is used for the butt joint installation of first pipeline and second pipeline, simple and easy steel pipe pipeline butt joint adjusting device that can turnover includes: positioning ring, positioning ring is provided with three, three positioning rings are evenly distributed and are welded at the interface of first pipeline, and positioning ring is the sharp corner structure, and the triangular cavity is formed between positioning ring and the outer wall of first pipeline, triangular pin, triangular pin is inserted in the triangular cavity of positioning ring from one side of second pipeline, and the bottom of triangular pin is respectively with the outer wall of first pipeline and second pipeline and abuts, and the upper portion of triangular pin is with the top of positioning ring and clamps, wherein, the interface position of first pipeline and second pipeline of every positioning ring both sides is all through the temporary spot welding fixed connection. The utility model discloses through setting up three sharp corner structure's positioning ring, can be temporarily fixed to the pipeline interface, and the accuracy is high, and after the interface alignment, the welding space is enough, and the operability is strong.
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Description

Technical Field

[0001] This utility model relates to the field of steel pipe connection and installation technology, specifically to a reusable and simple steel pipe connection adjustment device. Background Technology

[0002] With the acceleration of urbanization, municipal pipeline projects play a vital role in ensuring the normal operation of cities. These projects are mostly long-distance linear projects, requiring multiple pipe sections to be connected. Currently, welding is a common connection method.

[0003] Existing pipe connection adjustment methods mainly include clamping devices, pipe connectors, and spring supports. However, they still have the following drawbacks:

[0004] If a clamping device is used for pipe connection, the screw or nut needs to be rotated multiple times for tightening, which is inefficient and requires other temporary support devices; otherwise, there is no space for welding.

[0005] (2) If pipe connectors are used for pipe connection, the installation is complicated, requiring multiple rotations of fasteners, which is time-consuming and labor-intensive, especially in scenarios with frequent disassembly and assembly, where efficiency is even lower.

[0006] (3) If spring supports are used for pipe connection, the flatness of the foundation is required. One type of support is only suitable for a few types of pipes, and its applicability is poor.

[0007] Therefore, how to ensure the precise alignment of pipeline installations and achieve simple and convenient connection methods has been a problem that construction personnel have been constantly exploring and solving. Utility Model Content

[0008] The purpose of this utility model is to provide a reusable and simple steel pipe connection adjustment device to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides a reusable, simple steel pipe docking adjustment device for docking and installing a first pipe and a second pipe. The reusable, simple steel pipe docking adjustment device includes: three positioning rings evenly distributed and welded to the interface of the first pipe; each positioning ring has a pointed structure, and a triangular cavity is formed between the positioning ring and the outer wall of the first pipe; and a triangular pin inserted into the triangular cavity of the positioning ring from one side of the second pipe, with the bottom of the triangular pin abutting against the outer walls of both the first and second pipes, and the upper part of the triangular pin engaging with the top of the positioning ring; wherein the interfaces of the first and second pipes on both sides of each positioning ring are temporarily spot-welded for fixed connection.

[0010] In a preferred embodiment, the top of the end into which the triangular pin is inserted is inclined, the top of the end away from the positioning ring is horizontal, and the height of the top of the end away from the positioning ring is greater than the height of the positioning ring.

[0011] In a preferred embodiment, the bottom of the triangular pin is horizontal, and the bottom of the triangular pin is flush with the first pipe and the second pipe. One end of the triangular pin that is inserted into the positioning ring is triangular, and the insertion end of the triangular pin extends to the outside of the positioning ring.

[0012] In a preferred embodiment, the positioning ring is made of a steel plate with a length of 150 mm, a width of 100 mm, a height of 100 mm, and a wall thickness of 8 mm, and the two sides of the pointed corner of the positioning ring are of equal length.

[0013] In a preferred embodiment, the triangular pin is made of a steel plate with a length of 450 mm, a width of 100 mm, a height of 110 mm, and a wall thickness of 8 mm. The length of the triangular pin inserted into the positioning ring is 2 / 3 of the overall length.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a three-pointed positioning ring, employing the stability principle of triangles, to quickly and accurately align and fix pipe joints. The device consists of only two components: the positioning rings and the triangular pins. The operation can be completed through simple welding and hammering, making it convenient and significantly improving work efficiency. The pointed positioning rings are suitable for different pipe diameters, offering strong applicability. After joint alignment, there is sufficient welding space, enhancing operability. Furthermore, this device is reusable, exhibiting a high degree of tooling sophistication and utilization. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the side elevation structure of the device of this utility model;

[0017] Figure 2 for Figure 1 Cross-sectional view along the AA direction.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. First pipe; 2. Second pipe; 3. Positioning ring; 4. Triangular pin; 5. Spot welding. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] like Figures 1 to 2 As shown, the preferred embodiment of this utility model discloses a reusable simple steel pipe docking adjustment device, which is used for docking and installing a first pipe 1 and a second pipe 2. This reusable simple steel pipe docking adjustment device includes positioning rings 3 and triangular pins 4. Three positioning rings 3 are evenly distributed and welded at the interface of the first pipe 1, forming a triangular stable system at the interface of the two pipes. The positioning rings 3 have a "∧" shaped pointed structure, forming a triangular cavity between the positioning rings 3 and the outer wall of the first pipe 1. Three triangular pins 4 are movable parts, inserted into the triangular cavity of the positioning rings 3 from one side of the second pipe 2. The bottom of the triangular pins 4 abuts against the outer walls of the first pipe 1 and the second pipe 2 respectively, and the upper part of the triangular pins 4 engages with the inner top wall of the positioning rings 3. The interface positions of the first pipe 1 and the second pipe 2 on both sides of each positioning ring 3 are temporarily spot-welded together for final formal interface welding.

[0023] Furthermore, the top of the end of the triangular pin 4 that is inserted into the positioning ring 3 is inclined, while the top of the end away from the positioning ring 3 is horizontal, and the height of the top of the end away from the positioning ring 3 is greater than the height of the positioning ring 3. The bottom of the triangular pin 4 is horizontal, and the bottom of the triangular pin 4 is flush with the first pipe 1 and the second pipe 2. The end of the triangular pin 4 that is inserted into the positioning ring 3 has a triangular structure, and the insertion end of the triangular pin extends to the outside of the positioning ring.

[0024] Specifically, the positioning ring 3 is made of a steel plate with a length of 150mm, a width of 100mm, a height of 100mm, and a wall thickness of 8mm. The two sides of the pointed corner of the positioning ring 3 are of equal length, and the ends of the two sides of the pointed corner are welded and fixed to the outer wall of the first pipe 1. The triangular pin is made of a steel plate with a length of 450mm, a width of 100mm, a height of 110mm, and a wall thickness of 8mm. The length of the triangular pin 4 inserted into the positioning ring 3 is 2 / 3 of the overall length of the triangular pin.

[0025] Example 2

[0026] The following describes how to use this utility model:

[0027] (1) Move the first pipe 1 and the second pipe 2 that need to be connected longitudinally to achieve the required joint width;

[0028] (2) Push the two pipes horizontally to roughly connect the first pipe 1 and the second pipe 2, and set multiple L-shaped pads of preset width in the joint;

[0029] (3) Weld three positioning rings evenly distributed at the first pipe joint;

[0030] (4) Hammer the three triangular pins 4 into the positioning ring 3 in sequence. During the wedging process, pay attention to adjusting the joint width longitudinally.

[0031] (5) Tighten all three triangular pins 4, check the joint width again, and remove the L-shaped pad;

[0032] (6) Temporarily spot weld the two pipe joints on both sides of each positioning ring 3;

[0033] (7) Perform formal interface welding;

[0034] (8) Remove the triangular pin 4 and the positioning ring 3, and proceed with the next pipe connection operation.

[0035] 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 reusable, simple steel pipe docking adjustment device, used for docking installation of a first pipe (1) and a second pipe (2), characterized in that: The reusable simple steel pipe docking and adjustment device includes: Positioning ring (3), three positioning rings (3) are provided, and the three positioning rings (3) are evenly distributed and welded at the interface of the first pipe (1). The positioning ring (3) has a pointed structure, and a triangular cavity is formed between the positioning ring (3) and the outer wall of the first pipe (1). A triangular pin (4) is inserted into the triangular cavity of the positioning ring (3) from one side of the second pipe (2). The bottom of the triangular pin (4) abuts against the outer walls of the first pipe (1) and the second pipe (2) respectively, and the upper part of the triangular pin (4) is engaged with the top of the positioning ring (3). The interface positions of the first pipe (1) and the second pipe (2) on both sides of each positioning ring (3) are fixedly connected by temporary spot welding (5).

2. The turnkey simple steel pipe pipe-up butt adjusting device according to claim 1, characterized in that: The top of the triangular pin (4) inserted into the positioning ring (3) is inclined, and the top of the end away from the positioning ring (3) is horizontal. The height of the top of the end away from the positioning ring (3) is greater than the height of the positioning ring (3).

3. The turnkey simple steel pipe pipe-up butt adjusting device according to claim 2, characterized in that: The bottom of the triangular pin (4) is horizontal, and the bottom of the triangular pin (4) is flush with the first pipe (1) and the second pipe (2). The end of the triangular pin (4) inserted into the positioning ring (3) is triangular, and the insertion end of the triangular pin (4) extends to the outside of the positioning ring (3).

4. The turnable simple steel pipe pipe butt joining adjusting device according to claim 3, characterized in that: The positioning ring (3) is made of a steel plate with a length of 150mm, a width of 100mm, a height of 100mm and a wall thickness of 8mm. The two sides of the pointed corner of the positioning ring (3) are of equal length.

5. The turnable simple steel pipe pipe butt joining adjusting device according to claim 3, characterized in that: The length of the triangular pin (4) inserted into the positioning ring (3) is 2 / 3 of the overall length.