Positioning device for welding of flexible connector pipeline

Abstract

The utility model discloses a positioning device for welding a flexible interface pipeline, which comprises an upper arc-shaped clamping piece and a lower arc-shaped clamping piece which are arranged in pairs, a notch is arranged on the lower side of a connecting plate between the upper arc-shaped clamping piece and the lower arc-shaped clamping piece, a positioning threaded rod is arranged on the connecting plate, and one end of the upper arc-shaped clamping piece is rotatably connected with the lower arc-shaped clamping piece through a connecting assembly. And an adjusting threaded rod is screwed between the upper and lower horizontal plates. During use, the upper arc-shaped clamping piece and the lower arc-shaped clamping piece need to be placed on pipelines on the two sides of a welded junction, then the adjusting threaded rod is screwed to enable the upper arc-shaped clamping piece and the lower arc-shaped clamping piece located on a socket pipeline to abut against the outer side wall of the socket pipeline, and then the positioning threaded rod is screwed to enable the lower end of the positioning threaded rod to abut against the outer side of the socket pipeline and the outer side of a spigot pipeline respectively. Therefore, positioning welding of the flexible connector pipeline is achieved. The arrangement of the notch can prevent the welded junction from being blocked during welding, the welding effect is improved, the upper horizontal plate and the lower horizontal plate are matched with the arrangement of the adjusting threaded rod, positioning welding of pipelines with different calibers can be achieved, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of flexible joint pipe welding technology, and in particular to a positioning device for flexible joint pipe welding. Background Technology

[0002] Epoxy glass composite steel pipe (also known as epoxy fiberglass pipe or FRP pipe) is a composite material pipe made of glass fiber reinforcement and epoxy resin as the matrix, through winding, pultrusion, or molding processes. It features corrosion resistance, high strength, light weight, and long service life, and is widely used in the petrochemical industry, power industry (desulfurization, circulating water systems), municipal water supply and drainage and sewage treatment, marine engineering and shipbuilding, agricultural irrigation and water conservancy projects, and other fields.

[0003] When epoxy glass composite steel pipes are processed, produced, and put into use, the ends of two pipes need to be flexibly connected before welding the joint with a welding torch to accommodate stresses caused by thermal expansion and contraction, vibration, or foundation settlement. Currently, during welding with a handheld welding torch, the pipe is prone to shaking and displacement, leading to poor welding results and low welding efficiency. Therefore, various pipe alignment tools have been developed to improve pipe positioning during welding, enhance welding stability, and ensure welding quality. However, existing alignment tools tend to obstruct the welded joint at the pipe interface, affecting the welding effect. Furthermore, their adjustability is poor, making them unsuitable for positioning pipes of different diameters. Utility Model Content

[0004] The purpose of this application is to provide a positioning device for welding flexible joint pipes, so as to solve the problems that existing pipe jointing devices tend to block the gaps at the pipe joints that need to be welded after use, affecting the welding effect, and are not applicable to positioning pipes of different diameters.

[0005] To address the aforementioned technical problems, this application provides a positioning device for welding flexible joint pipes, comprising:

[0006] The system comprises a pair of upper and lower arc-shaped clamping members, with a connecting plate fixed between each pair. The lower side of the connecting plate has a notch corresponding to the pipe connection seam. Positioning threaded rods located on both sides of the notch are screwed onto the connecting plate. One end of each upper arc-shaped clamping member is rotatably connected to the lower arc-shaped clamping member via a connecting assembly. The other ends of both upper arc-shaped clamping members are jointly fixed to an upper horizontal plate, and the other ends of both lower arc-shaped clamping members are jointly fixed to a lower horizontal plate. An adjusting threaded rod is screwed between the upper and lower horizontal plates.

[0007] In a preferred embodiment, a positioning device for welding flexible interface pipes is provided, wherein the connecting assembly includes a connecting seat fixed to one end of the lower arc-shaped clamping member, the connecting seat is provided with an installation notch, an installation shaft passing through the installation notch is installed on the connecting seat, and one end of the upper arc-shaped clamping member is located inside the installation notch and rotatably connected to the installation shaft.

[0008] The solution requires detailed explanation of a positioning device for welding flexible interface pipes, wherein both ends of the mounting shaft are screwed with limit nuts.

[0009] In a preferred embodiment, a positioning device for welding flexible interface pipes includes an upper arc-shaped clamping member and a lower arc-shaped clamping member, the outer sides of which are fixed with an installation plate that is misaligned with the connecting plate, and an auxiliary positioning threaded rod is screwed onto the installation plate.

[0010] The solution requires detailed explanation of a positioning device for welding flexible interface pipes, wherein multiple limiting threaded rods are screwed onto the upper and lower arc-shaped clamping parts located on the spigot pipe.

[0011] In a preferred embodiment, a positioning device for welding flexible interface pipes is provided, wherein the upper ends of the positioning threaded rod, the auxiliary positioning threaded rod, and the limiting threaded rod are all fixed with nuts, and the lower ends of the positioning threaded rod, the auxiliary positioning threaded rod, and the limiting threaded rod are all fixed with positioning plates.

[0012] In a preferred embodiment, a positioning device for welding flexible interface pipes includes two adjusting threaded rods, and the upper ends of both adjusting threaded rods are fixed with nuts.

[0013] Compared with the prior art, the positioning device for flexible interface pipe welding provided by this utility model includes a pair of upper arc-shaped clamping parts and lower arc-shaped clamping parts. A connecting plate is fixed between the two upper arc-shaped clamping parts and the two lower arc-shaped clamping parts. The lower side of the connecting plate is provided with a notch corresponding to the pipe connection seam. Positioning threaded rods located on both sides of the notch are screwed onto the connecting plate. One end of the upper arc-shaped clamping part is rotatably connected to the lower arc-shaped clamping part through a connecting assembly. The other ends of the two upper arc-shaped clamping parts are jointly fixed to an upper horizontal plate. The other ends of the two lower arc-shaped clamping parts are jointly fixed to a lower horizontal plate. An adjusting threaded rod is screwed between the upper horizontal plate and the lower horizontal plate. During use, the upper and lower arc-shaped clamping parts need to be placed on the pipes on both sides of the weld (connection seam), ensuring that the notch is located at the weld. The positioning threaded rods on both sides of the notch are located on the socket pipe and the spigot pipe, respectively. Then, tighten the adjusting threaded rods to make the upper and lower arc-shaped clamping parts on the socket pipe abut against the outer wall of the socket pipe. Afterward, tighten the positioning threaded rods so that their lower ends abut against the outer sides of the socket pipe and the spigot pipe, respectively. This achieves positioning welding of flexible joint pipes (socket pipe and spigot pipe), effectively preventing pipe displacement during welding. The notch design avoids obstruction at the weld joint during welding, improving the welding effect. The upper and lower horizontal plates, together with the adjusting threaded rods, can achieve positioning welding of pipes of different diameters, making it widely applicable. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of a positioning device for welding flexible interface pipes provided in an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the installation of a positioning device for welding flexible interface pipes provided in an embodiment of this application;

[0017] Figure 3 This is a disassembly diagram of a positioning device for welding flexible interface pipes provided in an embodiment of this application;

[0018] Figure 4 This is a disassembly diagram of another positioning device for welding flexible interface pipes provided in an embodiment of this application;

[0019] In the diagram: 1. Upper arc-shaped clamping component; 2. Lower arc-shaped clamping component; 3. Connecting plate; 4. Notch; 5. Positioning threaded rod; 6. Upper horizontal plate; 7. Lower horizontal plate; 8. Adjusting threaded rod; 9. Connecting seat; 10. Installation notch; 11. Installation shaft; 12. Limit nut; 13. Mounting plate; 14. Auxiliary positioning threaded rod; 15. Limiting threaded rod; 16. Nut; 17. Positioning plate; 18. Socket pipe; 19. Spiral pipe. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0021] The core of this application is to provide a positioning device for welding flexible joint pipes, which solves the problems of existing pipe jointing devices, which easily block the gaps at the pipe joints that need to be welded after use, affecting the welding effect, and are not applicable to positioning pipes of different diameters.

[0022] Figure 1 This is a schematic diagram of a positioning device for welding flexible interface pipes provided in an embodiment of this application. Figure 2 This is a schematic diagram of the installation of a positioning device for welding flexible joint pipes provided in an embodiment of this application. Figure 3 This is a disassembly diagram of a positioning device for welding flexible interface pipes provided in an embodiment of this application. Figure 4 See the disassembly diagram of another positioning device for welding flexible interface pipes provided in this application embodiment. Figures 1 to 4 As shown.

[0023] Example 1

[0024] A positioning device for welding flexible joint pipes includes a pair of upper arc-shaped clamping parts 1 and a pair of lower arc-shaped clamping parts 2. The shapes of the upper arc-shaped clamping parts 1 and the lower arc-shaped clamping parts 2 match the shape of the pipe. A connecting plate 3 is fixed between each of the two upper arc-shaped clamping parts 1 and the two lower arc-shaped clamping parts 2. That is, a connecting plate 3 is fixed between the two upper arc-shaped clamping parts 1 and the two lower arc-shaped clamping parts 2. A notch 4 corresponding to the pipe joint (that is, the weld joint where the welding rod needs to be welded) is provided on the lower side of the connecting plate 3. During welding, the welding rod can be inserted into the notch 4 by hand to weld the weld joint below it. The connecting plate 3 has two positioning threaded rods 5 screwed on it, located on both sides of the notch 4. One end of the upper arc-shaped clamping member 1 is rotatably connected to the lower arc-shaped clamping member 2 through the connecting assembly. When in use, the upper arc-shaped clamping member 1 and the lower arc-shaped clamping member 2 need to be put on the outside of the socket pipe 18 and the spigot pipe 19, and the connecting plate 3 should be made to cross the weld joint to ensure that the notch 4 is located at the weld joint. Ensure that one positioning threaded rod 5 on the same connecting plate 3 corresponds to the socket pipe 18 and the other positioning threaded rod 5 corresponds to the spigot pipe 19. The other ends of the two upper arc-shaped clamping parts 1 are jointly fixed to an upper horizontal plate 6, and the other ends of the two lower arc-shaped clamping parts 2 are jointly fixed to a lower horizontal plate 7. An adjusting threaded rod 8 is screwed between the upper horizontal plate 6 and the lower horizontal plate 7. After the upper arc-shaped clamping parts 1 and the lower arc-shaped clamping parts 2 are positioned, the adjusting threaded rod 8 is operated to make the upper arc-shaped clamping parts 1 and the lower arc-shaped clamping parts 2 fitted on the socket pipe 18 abut against the outer wall of the socket pipe 18. Then, the positioning threaded rod 5 is screwed so that its lower end abuts against the outer wall of the socket pipe 18 and the spigot pipe 19 respectively, thereby achieving the positioning of the socket pipe 18 and the spigot pipe 19 and preventing the socket pipe 18 and the spigot pipe 19 from shifting during the welding process, which would affect the welding effect.

[0025] Example 2

[0026] Based on Embodiment 1, a positioning device for welding flexible interface pipes, in order to achieve a rotatable connection between the upper arc-shaped clamping member 1 and the lower arc-shaped clamping member 2, preferably includes a connecting seat 9 fixed to one end of the lower arc-shaped clamping member 2. The connecting seat 9 has a mounting notch 10, and a mounting shaft 11 passing through the mounting notch 10 is mounted on the connecting seat 9. One end of the upper arc-shaped clamping member 1 is located within the mounting notch 10 and rotatably connected to the mounting shaft 11. In this embodiment, the mounting shaft 11 is fixedly connected to the connecting seat 9.

[0027] Based on Embodiment 2, a positioning device for welding flexible interface pipes is provided, with limit nuts 12 screwed on both ends of the mounting shaft 11. The setting of limit nuts 12 can further improve the stability of the mounting shaft 11 in use and the firmness of the installation.

[0028] Example 3

[0029] Based on Embodiment 1, a positioning device for welding flexible joint pipes is provided. To further improve the positioning effect of the flexible joint pipes, preferably, an installation plate 13 that is misaligned with the connecting plate 3 is fixed on the outside of the upper arc-shaped clamping member 1 and the lower arc-shaped clamping member 2. An auxiliary positioning threaded rod 14 is screwed onto the installation plate 13. In use, the auxiliary positioning threaded rod 14 can be screwed so that its bottom end abuts against the outer wall of the socket pipe 18 and the spigot pipe 19, thereby further positioning the socket pipe 18 and the spigot pipe 19.

[0030] Based on Embodiment 3, a positioning device for welding flexible interface pipes is provided, wherein multiple limiting threaded rods 15 are screwed onto the upper arc-shaped clamping member 1 and the lower arc-shaped clamping member 2 located on the spigot pipe 19. In use, the limiting threaded rods 15 can be screwed so that their lower ends abut against the outside of the spigot pipe 19, thereby further improving the positioning effect of the spigot pipe 19.

[0031] In this embodiment, a positioning device for welding flexible interface pipes, in order to further improve the positioning effect of the flexible interface pipes, preferably, has nuts 16 fixed at the upper ends of the positioning threaded rod 5, the auxiliary positioning threaded rod 14, and the limiting threaded rod 15. The nuts 16 facilitate the tightening operation of the positioning threaded rod 5, the auxiliary positioning threaded rod 14, and the limiting threaded rod 15. The lower ends of the positioning threaded rod 5, the auxiliary positioning threaded rod 14, and the limiting threaded rod 15 are all fixed with positioning pieces 17. The positioning pieces 17 increase the contact area between the positioning threaded rod 5, the auxiliary positioning threaded rod 14, and the limiting threaded rod 15 and the outer side of the corresponding pipe, thereby improving the positioning effect and effectively preventing the pipe from shifting during the welding process.

[0032] Based on Embodiment 1, a positioning device for welding flexible interface pipes is preferably provided, wherein there are two adjusting threaded rods 8, and the upper ends of the two adjusting threaded rods 8 are fixed with nuts 16. The nuts 16 facilitate the screwing operation of the adjusting threaded rods 8. The provision of two adjusting threaded rods 8 can improve the adjustment effect of the upper arc-shaped clamping member 1 and the lower arc-shaped clamping member 2.

[0033] The positioning device for welding flexible interface pipes provided by this utility model includes a pair of upper arc-shaped clamping parts 1 and lower arc-shaped clamping parts 2. A connecting plate 3 is fixed between each of the two upper arc-shaped clamping parts 1 and the two lower arc-shaped clamping parts 2. A notch 4 corresponding to the pipe connection seam is provided on the lower side of the connecting plate 3. Positioning threaded rods 5 located on both sides of the notch 4 are screwed onto the connecting plate 3. One end of the upper arc-shaped clamping part 1 is rotatably connected to the lower arc-shaped clamping part 2 through a connecting assembly. The other ends of the two upper arc-shaped clamping parts 1 are jointly fixed to an upper horizontal plate 6. The other ends of the two lower arc-shaped clamping parts 2 are jointly fixed to a lower horizontal plate 7. An adjusting threaded rod 8 is screwed between the upper horizontal plate 6 and the lower horizontal plate 7. During use, the upper arc-shaped clamping piece 1 and the lower arc-shaped clamping piece 2 need to be placed on the pipes on both sides of the weld joint, ensuring that the notch 4 is located at the weld joint. The positioning threaded rods 5 on both sides of the notch 4 are located on the socket pipe and the spigot pipe, respectively. Then, tighten the adjusting threaded rod 8 so that the upper arc-shaped clamping piece 1 and the lower arc-shaped clamping piece 2 on the socket pipe abut against the outer wall of the socket pipe. After that, tighten the positioning threaded rod 5 so that its lower end abuts against the outer side of the socket pipe and the spigot pipe, respectively. This achieves the positioning welding of the socket pipe and the spigot pipe of the flexible joint pipe, effectively preventing pipe displacement during welding. The notch 4 can avoid obstruction at the weld joint during welding, improving the welding effect. The upper horizontal plate 6 and the lower horizontal plate 7, together with the adjusting threaded rod 8, can achieve positioning welding of pipes of different diameters, making it widely applicable.

[0034] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0035] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A positioning device for flexible interface pipe welding, characterized in that include: The upper arc-shaped clamping member (1) and the lower arc-shaped clamping member (2) are arranged in pairs. A connecting plate (3) is fixed between the two upper arc-shaped clamping members (1) and the two lower arc-shaped clamping members (2). A notch (4) corresponding to the pipe connection seam is provided on the lower side of the connecting plate (3). A positioning threaded rod (5) located on both sides of the notch (4) is screwed on the connecting plate (3). One end of the upper arc-shaped clamping member (1) is rotatably connected to the lower arc-shaped clamping member (2) through a connecting assembly. The other ends of the two upper arc-shaped clamping members (1) are fixed together with an upper horizontal plate (6). The other ends of the two lower arc-shaped clamping members (2) are fixed together with a lower horizontal plate (7). An adjusting threaded rod (8) is screwed between the upper horizontal plate (6) and the lower horizontal plate (7).

2. The flexible interface tubing welding positioning device of claim 1, wherein, The connecting assembly includes a connecting seat (9) fixed to one end of the lower arc-shaped clamping member (2), the connecting seat (9) is provided with an installation notch (10), the connecting seat (9) is provided with an installation shaft (11) that passes through the installation notch (10), one end of the upper arc-shaped clamping member (1) is located inside the installation notch (10) and is rotatably connected to the installation shaft (11).

3. The flexible interface tubing welding positioning device of claim 2, wherein, Both ends of the mounting shaft (11) are screwed with limit nuts (12).

4. The flexible interface tubing welding positioning device of claim 1, wherein, The upper arc-shaped clamping member (1) and the lower arc-shaped clamping member (2) are also fixed with an installation plate (13) that is misaligned with the connecting plate (3), and an auxiliary positioning threaded rod (14) is screwed onto the installation plate (13).

5. The flexible interface tubing welding positioning device of claim 4, wherein, Multiple limiting threaded rods (15) are screwed onto the upper arc-shaped clamping member (1) and the lower arc-shaped clamping member (2) located on the spigot pipe.

6. The flexible interface tubing welding positioning device of claim 5, wherein, The upper ends of the positioning threaded rod (5), the auxiliary positioning threaded rod (14) and the limiting threaded rod (15) are all fixed with nuts (16), and the lower ends of the positioning threaded rod (5), the auxiliary positioning threaded rod (14) and the limiting threaded rod (15) are all fixed with positioning pieces (17).

7. The flexible interface tubing welding positioning device of claim 1, wherein, There are two adjusting threaded rods (8), and the upper ends of both adjusting threaded rods (8) are fixed with nuts (16).

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