Opening alignment auxiliary device for pipeline welding
By using steel belts, snap structures and bolt auxiliary devices, the problem of pipeline transportation deformation and alignment is solved, efficient and low-cost pipeline welding is achieved, and construction quality and construction period are improved.
Patent Information
- Application Number
- CN202421671135.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-15
AI Technical Summary
In the prior art, pipelines are prone to deform during transportation and handling, resulting in poor welding quality, low pass rate of flaw detection, and it is difficult to achieve the need to align the pipe ports during welding, which affects construction costs and construction periods.
Two parallel bent steel strips are used, equipped with snap structure, nuts and stop-top bolts. By adjusting the elasticity and bolt positions of the steel strips, the pipe is assisted with the counter-end welding, and temporary production of on-site materials is used to achieve pipeline alignment and defect recovery.
The pipeline welding process is simplified, additional material investment and construction period are saved, welding quality and efficiency are improved, and transportation costs and construction lag impacts of return to the factory and repair.
Smart Images
Figure CN223129708U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline butt joint, in particular to a pipeline welding butt joint auxiliary device. Background Art
[0002] At present, the pipelines of most projects are prefabricated in the processing plant and then transported to the site for welding and installation. This method often causes the pipeline mouth to deform due to external force during transportation and handling, resulting in welding failure, poor welding quality, low flaw detection pass rate and other problems. The solution to this problem at this stage is: contact the manufacturer to return to the factory for repair, make temporary adjustments on site or even remake the pipeline; these methods not only increase construction costs and low construction quality, but also affect the construction period, etc., and the two butt joints need to ensure that their pipe mouths are horizontally aligned during welding. Welding will cause the pipe body to shift, resulting in a bending angle at the welding point of the two pipe bodies. Therefore, it is necessary to align the pipelines during welding and set a pipe body clamping and limiting structure. Therefore, we propose a pipeline welding butt auxiliary device. Utility Model Content
[0003] The utility model aims to provide a pipeline welding butt auxiliary device, which solves the problems raised in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline welding butt auxiliary device, comprising two parallel and curved steel belts, the ends of the two steel belts are provided with buckle structures for adjusting the tightness of the steel belts, the outer sides of the two steel belts are welded to three steel plates, one end of the three steel plates is horizontally welded with a nut A, the nut A is threadedly connected with a stop bolt, and the end of the stop bolt facing away from the nut A is welded with a nut B.
[0005] As a preferred implementation of the technical solution of the present application, the buckle structure includes through-hole blocks fixed at the two ends of the steel belt, a screw rod passing through the two through-hole blocks, and nuts C are threadedly connected at both ends of the screw rod.
[0006] As a preferred implementation of the technical solution of the present application, three steel plates are arranged around the circumferential surface of the steel belt, and two adjacent steel plates are arranged perpendicular to each other.
[0007] As a preferred implementation of the technical solution of the present application, the stop bolt includes a threaded section, a bare rod section and a hexagonal nut head which are fixedly connected in sequence, nut A is spirally installed on the threaded section, and nut B is vertically arranged on the end face of the hexagonal nut head.
[0008] As a preferred implementation of the technical solution of the present application, the spacing between the two parallel steel belts is set to 30 cm to 60 cm.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0010] The technical solution of the present application can be easily collected at the construction site through the steel belt, the buckle structure, the nut A, the stop bolt and the nut B, the auxiliary device can be reused and the materials used can be collected from the construction site for temporary production, the tightness of the steel belt can be adjusted by the buckle structure to facilitate stable assembly with the pipeline, the nut B is used in conjunction with the steel pipe at the construction site to rotate and adjust the stop bolt, the three stop bolts are used to align and adjust the pipe mouth of the pipe bound with the steel belt, so as to assist the butt welding of the two pipes, and at the same time the stop bolt can press and restore the protruding defects at the pipe mouth of the pipe, so that the protruding defects at the pipe mouth of the pipe are eliminated, no additional material investment is required, the production is simple and quick, and the disassembly and assembly are convenient, saving a series of negative effects such as transportation costs and construction period delays caused by returning the pipeline to the factory. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0012] Figure 1 This is a three-dimensional diagram of a pipeline welding butt-joint auxiliary device of the utility model;
[0013] Figure 2 The utility model is a top view of a pipeline welding butt auxiliary device.
[0014] In the figure: 1. weld; 2. steel strip; 3. snap-fit structure; 301. screw; 302. nut C; 4. steel plate; 5. nut A; 6. top bolt; 7. nut B; 8. pipe. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0016] Embodiment 1, as Figure 1-2 As shown, the utility model provides a technical solution: a pipeline welding butt auxiliary device, comprising two parallel and curved steel belts 2, the spacing between the two parallel steel belts 2 is set to 30 cm, and the ends of the two steel belts 2 are provided with buckle structures 3 for adjusting the tightness of the steel belts, and the outer sides of the two steel belts 2 are welded to three steel plates 4, and nuts A5 are horizontally welded at one end of the three steel plates 4, and the nuts A5 are threadedly connected with stop bolts 6, and the end of the stop bolts 6 facing away from the nut A5 is welded with a nut B7.
[0017] In a specific embodiment of the utility model, the steel plate scraps collected on site are cut to make steel plates 4, and the nut A5 is horizontally welded to one end of the steel plate 4 as the main body of the "pipeline welding matching auxiliary device", the nut A5 is horizontally threaded to connect the top bolt 6, and a nut B7 is vertically welded to the end of the top bolt 6 away from the nut A5. Two steel strips 2 and the buckle structure 3 are welded to the steel plate as clamps to fix the device on the pipeline 8. The device is fixed near the welding joint of the pipeline 8, and the end of the top bolt 6 is located at the same position as the pipeline. Near the butt joint of the butt jointed pipe body 8, when there is a misalignment problem between the butt jointed pipe body and the pipe 8, a strong steel pipe that can pass through the nut B7 can be used as a crank handle of the auxiliary device to adjust the position of the end of the stop bolt 6, so as to achieve fine adjustment of the position of the butt joint pipe body, and finally align the pipe 8 with the butt joint pipe body. The stop bolt 6 can also press and restore the protruding defects at the pipe mouth, so that the shape of the pipe mouth is restored to a circle, which is convenient for subsequent welding work. After welding is completed, the screw 301 and the nut C302 are removed, and the device can be removed from the pipe 8.
[0018] In the preferred technical solution, the snap-fit structure 3 includes a through-hole block fixed at the two ends of the steel belt 2, a screw 301 passing through the two through-hole blocks, nuts C302 are threadedly connected at both ends of the screw 301, and the through-hole block is provided with a through hole for the screw 301 to pass through. By adjusting the nuts C302 at both ends of the screw 301, the tightness of the steel belt 2 can be adjusted, thereby adapting to the fixing work of pipes 8 of different diameters.
[0019] In the preferred technical solution, three steel plates 4 are arranged around the circumferential surface of the steel belt 2, and two adjacent steel plates 4 are arranged perpendicular to each other. The three steel plates 4 and the buckle structure 3 form a cross distribution. The two steel plates 4 are symmetrically distributed about the buckle structure 3, and the other steel plate is located on the back side of the buckle structure 3. The three steel plates 4 can be equipped with three stop bolts 6, and the three stop bolts 6 can improve the stability of the clamping of the butt joint body.
[0020] In the preferred technical solution, the stop bolt 6 includes a threaded section, a bare rod section and a hexagonal nut head which are fixedly connected in sequence. The nut A5 is spirally installed on the threaded section, and the nut B7 is vertically arranged on the end face of the hexagonal nut head. When the steel pipe passes through the nut B7, it can be conveniently used as a crank to assist the rotation of the stop bolt 6.
[0021] To sum up, the steel belt 2, the buckle structure 3, the screw 301, the nut C302, the steel plate 4, the nut A5, the top bolt 6 and the nut B7 are all made of materials temporarily collected at the construction site. They can not only be reused, but also the materials used can be used to make devices of different sizes according to different pipe diameters. No additional material investment is required, the production is simple and fast, and the disassembly and assembly are convenient, which saves a series of negative effects such as transportation costs and construction delays caused by returning the pipeline to the factory.
Claims
1. An auxiliary device for pipe welding butt joint, characterized in that: The invention comprises two parallel and curved steel strips (2), the ends of the two steel strips (2) are provided with buckle structures (3) for adjusting the tightness of the steel strips, the outer sides of the two steel strips (2) are welded to three steel plates (4), one end of the three steel plates (4) is horizontally welded with a nut A (5), the nut A (5) is threadedly connected with a stop bolt (6), and the end of the stop bolt (6) facing away from the nut A (5) is welded with a nut B (7).
2. The pipe welding butt joint auxiliary device according to claim 1, wherein: The buckle structure (3) comprises through-hole blocks fixed at two ends of the steel strip (2), and a screw rod (301) passing through the two through-hole blocks, wherein both ends of the screw rod (301) are threadedly connected to nuts C (302).
3. The pipe welding butt joint auxiliary device according to claim 1, characterized in that: The three steel plates (4) are arranged around the circumferential surface of the steel belt (2), and two adjacent steel plates (4) are arranged perpendicular to each other.
4. The pipe welding butt joint auxiliary device according to claim 2, characterized in that: The stop bolt (6) comprises a threaded section, a polished rod section and a hexagonal nut head which are fixedly connected in sequence, the nut A (5) is screwed onto the threaded section, and the nut B (7) is vertically arranged on the end surface of the hexagonal nut head.
5. The pipe welding butt joint auxiliary device according to claim 1, characterized in that: The distance between the two parallel steel belts (2) is set to 30 cm to 60 cm.