Fixed pipe correction device

Abstract

The utility model relates to pipeline welding construction technical field discloses a kind of fixed pipeline rectifying device, including the fixed ring of open-close, and the matching bolt via hole and bolt of two ends of fixed ring are respectively fixedly arranged, fixed ring can be installed by bolt and bolt via hole matching to be connected with head and fixed on pipeline, fixed ring is outwardly convex and is provided with the taper groove of the section of V type in axial direction, further including a push block capable of being matched with the shape of taper groove and capable of being inserted into taper groove, after fixed ring is fixed on pipeline, the orientation of taper groove is determined according to the position that pipeline needs to be corrected, pipeline is corrected by fixing push block in taper groove and exerting pressure on push block, solve the technical problem that pipeline clamping device operation of pipeline welding construction in prior art is complicated.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding construction technology, specifically a fixed pipeline correction device that is easy to operate quickly. Background Technology

[0002] During pipeline welding, two pipe sections typically need to be precisely aligned and fixed before welding can begin. Existing technologies usually employ rigid clamping devices, using bolts or clamps to secure the pipes. However, these existing technologies have the following problems: 1. The clamping range is fixed, making it difficult to adapt to different pipe diameters and resulting in poor versatility; 2. Once clamped, any fine-tuning of the alignment requires complete loosening before readjustment, making the operation cumbersome and inefficient; 3. The lack of a fine adjustment mechanism prevents precise correction in axial, radial, or angular directions, leading to misalignment or uneven gaps between the upper and lower pipe sections, affecting welding quality. Furthermore, some technical solutions require welding auxiliary parts to the pipe wall, which can damage the pipe surface and potentially cause corrosion, limiting their application, especially in thin-walled pipes or pipes with strict process requirements. Utility Model Content

[0003] To address the cumbersome operation of pipe clamping devices in existing pipe welding construction techniques, this utility model proposes a pipe fixing and correction structure.

[0004] A pipe straightening device includes a fixed ring with an opening. Matching bolt holes and bolts are fixedly installed at both ends of the opening. The fixed ring can be installed by matching the bolts with the bolt holes to close the opening. The fixed ring has a V-shaped conical groove protruding outwards, perpendicular to the axial direction of the fixed ring. It also includes a push block that matches the shape of the conical groove and can be inserted into it. After the fixed ring is fixed to the pipe, the orientation of the conical groove is determined according to the position of the pipe to be straightened. By fixing the push block in the conical groove and applying pressure to the push block, the pipe is straightened, bringing the pipe's axis to the desired position.

[0005] Furthermore, the front end of the push block is a pyramid with a guide surface for matching the conical groove, and the tail end of the push block is provided with a striking surface. By aligning the guide surface with the pipe and inserting the front end into the conical groove, pressure can be applied to the striking surface to achieve pipe correction.

[0006] Furthermore, the bolt through-holes are set in multiples, so that the retaining ring can adapt to pipes of different diameters within a certain pipe diameter range.

[0007] The beneficial effects of this utility model include: by setting a fixing ring with a conical groove and a push block that matches the conical groove, the positions of the two pipes to be welded can be adjusted more flexibly, and the assembly and disassembly are more convenient, which greatly improves the work efficiency and solves the technical problem of cumbersome operation of pipe clamping devices in pipe welding construction in the prior art. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the fixing ring structure of the fixed pipe correction structure of this utility model.

[0009] Figure 2 This is a schematic diagram of the push block structure of the fixed pipe correction structure of this utility model.

[0010] Figure 3 This is a front view of the fixed pipe correction structure of this utility model.

[0011] Figure 4 This is a front view of the working state of the fixed pipe correction structure of this utility model.

[0012] The markings in the diagram are: 1-fixing ring, 2-bolt through hole, 3-bolt, 4-conical groove, 5-push block, 51-guide surface, 52-striking surface. Detailed Implementation

[0013] The present invention will now be described in conjunction with the accompanying drawings.

[0014] like Figures 1-3 The diagram shows the pipe fixing and straightening device of this utility model, including a fixing ring 1 with an opening and a pusher block 5. The fixing ring 1 can be made of a material with suitable ductility. In this embodiment, the fixing ring 1 is made of Q235 steel strip with a thickness of 3mm to 8mm, or of hard rubber or polyurethane material with a thickness of 10mm to 20mm and a Shore hardness of 70A to 90A. Matching bolt holes 2 and bolts 3 are fixedly provided at the two ends of the opening of the fixing ring 1, respectively. The fixing ring 1 can be installed end-to-end by matching the bolts 3 with the bolt holes 2, thus fixing it to the outside of the pipe. The fixing ring 1 has a V-shaped conical groove 4 protruding outwards, perpendicular to the axial direction of the fixing ring. (See reference...) Figure 1 Both sides of the conical groove 4 are roughly parallel to the axis of the fixed shaft 1. When in use, the conical groove 4 is aligned with the part of the pipe that needs to be corrected, and then the bolt 3 is inserted into the bolt hole 2 and locked by the nut so that the fixing ring 1 basically covers the outer diameter of the pipe. One end of the push block 5 can match the conical groove 4 and can be inserted into the conical groove 4.

[0015] like Figure 2The present invention describes a fixed pipe correction device. The front end of the push block 5 is provided with a guide surface 51 that matches the conical groove 4, and the rear end of the push block 5 is provided with a striking surface 52. The guide surface 51 is placed against one side of the pipe wall and the front end is inserted into the conical groove 4. Pressure is applied to the striking surface 52. During the process, the change in the position of the pipe axis is continuously observed until the pipe is corrected.

[0016] Specifically, such as Figure 1 As shown, in this embodiment, there are multiple bolt holes 2, which facilitates the adjustment of the diameter of the fixed ring 1 after it is closed, so as to adapt to pipes of different sizes.

[0017] like Figure 4 As shown, in the process of using the fixed pipe correction device of this utility model, firstly, the two pipes that need to be aligned are determined, and the fixing ring 1 is fixed end to end of one of the pipes. Specifically, the bolt 3 is screwed into one of the bolt holes 2 to fix it, so that the diameter of the fixing ring 1 can match the pipe size. The conical groove 4 is aligned with the position where there is a large deviation at the connection of the two pipes. Then, the front end of the push block 5 is inserted into the conical groove 4, and the guide surface 51 faces the wall of the two pipes. After applying pressure to the striking surface 52, the side walls of the two pipes are basically flush with the guide surface 51. That is, the push block 5 pushes the side wall of one pipe that protrudes in the direction of the guide surface 51 to be flush with the side wall of the other pipe. Then, the fixing ring 1 is contacted and fixed. The conical groove 4 is rotated to another position where there is a deviation. The above steps are repeated to finally complete the pipe correction operation.

[0018] Compared with existing technologies, the fixed pipe correction device of this utility model, by setting an openable and closable fixed ring 1 with a conical groove and a push block 5, adopts a locking structure that combines an open ring with multiple bolt through holes. Through the mechanical correction principle of the push block 5 cooperating with the conical groove 4, it can flexibly correct the centering of different fixed pipes. In addition, it is equipped with multiple bolt through holes 2, thereby achieving pipe diameter self-adaptation within a certain range, improving the versatility of the device. The overall structure is simple and reliable, with a low risk of jamming and failure. The correction and adjustment of the pipe can be completed without welding auxiliary parts on the pipe surface. It solves the technical problem of cumbersome operation of pipe clamping devices in pipe welding construction of existing technologies, and significantly improves the pipe alignment accuracy and welding quality.

Claims

1. A fixed pipe straightening device, comprising a fixing ring (1) having an opening, wherein the two ends of the opening of the fixing ring (1) are respectively provided with matching bolt holes (2) and bolts (3), and the fixing ring (1) can be installed by matching the bolts (3) with the bolt holes (2) to close the opening, characterized in that: The fixing ring (1) has a V-shaped conical groove (4) protruding outwards and perpendicular to the axial direction of the fixing ring (1), and also includes a push block (5) that can match the shape of the conical groove (4).

2. The fixed pipe correction device according to claim 1, characterized in that: The front end of the push block (5) is a pyramid with a guide surface (51) that matches the conical groove (4), and the tail end of the push block (5) is provided with a striking surface (52).

3. The fixed pipe correction device according to claim 1, characterized in that: The bolt through-holes (2) are set to a plurality of holes.

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