Pipeline spiral welding seam defect repairing device

Abstract

The utility model relates to the technical field of leaking stoppage under pressure, and discloses a pipeline spiral welding seam defect repairing device which comprises a leaking stoppage plate, the left portion and the right portion of the rear side of the leaking stoppage plate are both rotationally connected with connecting plates, the sides, close to each other, of the front portions of the two connecting plates are fixedly connected with a second fixing plate, and the front portion of the leaking stoppage plate is fixedly connected with a first fixing block. A rotating block is rotationally connected to the interior of the first fixing block, a threaded rod is rotationally connected to the interior of the rotating block, a pushing plate is in threaded connection to the periphery of the upper portion of the threaded rod, a limiting plate is fixedly connected to the upper end of the threaded rod, and the pushing plate abuts against the middle of the upper portion of the second fixing plate; a sealing assembly is arranged on the inner wall of the leaking stoppage plate and used for preventing leakage of a pipeline medium. According to the pipeline leaking stoppage device, the limiting plate drives the threaded rod to rotate, the threaded rod drives the pushing plate to move downwards, the pushing plate abuts against the installation groove downwards to extrude the installation groove, and pipeline leaking stoppage operation can be achieved when the threaded rod cannot rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure - tight plugging, in particular to a device for repairing defects of pipeline spiral weld seams. Background Technique

[0002] In the modern industrial field, as an important device for transporting media such as liquids and gases, the safety and reliability of pipeline systems are of crucial importance. Due to the influence of manufacturing processes, material properties, and usage environment factors, various defects such as cracks, perforations, and problems with weld seams are inevitable during the use of pipelines. This not only affects the normal operation of pipelines but also may lead to serious safety accidents. Therefore, developing an efficient device for repairing defects of pipeline spiral weld seams has important practical significance.

[0003] The plugging plate is made of metal materials and has high strength and toughness. When in use, according to the shape and size of the pipeline defect, the appropriate model and specification of the plugging plate are selected, and the plugging plate is fixed at the pipeline defect through bolts and fixture connectors, thereby achieving the purpose of plugging.

[0004] When the traditional plugging plate is used, multiple bolts are used to fix it one by one. This results in that the tightening degrees between multiple bolts cannot vary too much. Otherwise, it is easy to occur that the plugging plate tilts during installation, causing the plugging plate not to fit well on the outer surface of the pipeline for plugging. For this reason, a device for repairing defects of pipeline spiral weld seams is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a device for repairing defects of pipeline spiral weld seams, aiming to improve the problem that the plugging plate tilts during installation in the prior art, resulting in the plugging plate not fitting well on the outer surface of the pipeline for plugging and causing pipeline leakage.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A device for repairing defects of pipeline spiral weld seams includes a plugging plate. Both the left and right parts at the rear of the plugging plate are rotatably connected with connecting plates. A second fixing plate is fixedly connected to the adjacent side of the front parts of the two connecting plates. A first fixing block is fixedly connected to the front of the plugging plate. A rotating block is rotatably connected inside the first fixing block. A threaded rod is rotatably connected inside the rotating block. A pushing plate is threadedly connected to the outer circumference of the upper part of the threaded rod. A limiting plate is fixedly connected to the upper end of the threaded rod. The pushing plate abuts against the middle part of the upper part of the second fixing plate. A sealing assembly is arranged on the inner wall of the plugging plate, and the sealing assembly is used to prevent pipeline media from leaking.

[0007] Further, the sealing assembly includes a base layer fixedly connected to the inner wall of the plugging plate, and a filling layer is fixedly connected to the inner wall of the base layer.

[0008] Further, an installation groove is provided in the middle of the upper part of the second fixing plate, and the pushing plate abuts against the inside of the installation groove.

[0009] Further, the threaded rod penetrates through the second fixing plate.

[0010] Further, a drainage groove is provided on the inner wall of the plugging plate, and the drainage groove penetrates through the inner wall of the plugging plate in a diagonal thread manner.

[0011] Further, a drainage valve is fixedly connected to the middle of the inner wall of the plugging plate.

[0012] Further, a splicing groove is provided on the left part of the plugging plate, and the shape of the right part of the plugging plate is complementary to the shape of the splicing groove.

[0013] Further, the base layer is made of rubber, and the filling layer is made of silicone rubber.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, hold the pushing plate and drive the threaded rod to rotate, so that the pushing plate moves over the second fixing plate and is located above the installation groove. Use a triangular screwdriver to rotate the limiting plate, the limiting plate drives the threaded rod to rotate, the threaded rod drives the pushing plate to move downward, the pushing plate abuts against and presses downward on the installation groove, and continuously rotate the limiting plate until the threaded rod cannot rotate. Thus, the plugging operation of the pipeline can be realized.

[0016] 2. In the utility model, the base layer can ensure the sealing performance between the plugging plate and the pipeline, and the filling layer can fill the gap between the pipeline and the base layer to prevent the generation of gaps. Description of the Drawings

[0017] Figure 1 is a three-dimensional schematic diagram of a pipeline spiral weld defect repair device proposed by the utility model;

[0018] Figure 2 is a structural schematic diagram of the plugging plate of a pipeline spiral weld defect repair device proposed by the utility model;

[0019] Figure 3 is a structural schematic diagram of the second fixing plate of a pipeline spiral weld defect repair device proposed by the utility model;

[0020] Figure 4 is a structural schematic diagram of the filling layer of a pipeline spiral weld defect repair device proposed by the utility model.

[0021] Legend Explanation:

[0022] 1. Plugging plate; 2. Connecting plate; 3. First fixing block; 4. Second fixing plate; 5. Rotating block; 6. Threaded rod; 7. Pushing plate; 8. Limiting plate; 9. Installation groove; 10. Drainage valve; 11. Drainage groove; 12. Splicing groove; 13. Base layer; 14. Filling layer. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Referring to Figures 1 - 3 , an embodiment provided by the present invention: A device for repairing defects in a spiral weld seam of a pipeline includes a plugging plate 1. The plugging plate 1 can connect various components and prevent the sealing assembly from being deformed by pressure extrusion. Both the left and right parts of the rear side of the plugging plate 1 are rotatably connected to a connecting plate 2. The two connecting plates 2 can be buckled on the outer circumference of the pipeline to form a fixed support connection. A second fixing plate 4 is fixedly connected to the adjacent side of the front parts of the two connecting plates 2. The second fixing plate 4 can provide a space for the pushing plate 7 to abut and be fixed. A first fixing block 3 is fixedly connected to the front part of the plugging plate 1. The first fixing block 3 can fix the rotating block 5. The lower end rotation fulcrum of the threaded rod 6 is fixedly connected inside the first fixing block 3. The rotating block 5 is rotatably connected to the threaded rod 6 inside. The threaded rod 6 can push the pushing plate 7 to move. The threaded rod 6 penetrates through the second fixing plate 4. The upper outer circumference of the threaded rod 6 is threadedly connected to the pushing plate 7. The pushing plate 7 can push the second fixing plate 4 to move. The upper end of the threaded rod 6 is fixedly connected to a limiting plate 8. The limiting plate 8 can prevent the pushing plate 7 from moving upward excessively and disengaging from the threaded rod 6. The pushing plate 7 abuts against the middle part of the upper part of the second fixing plate 4. An installation groove 9 is opened in the middle part of the upper part of the second fixing plate 4. The pushing plate 7 abuts inside the installation groove 9. A sealing assembly is provided on the inner wall of the plugging plate 1. The sealing assembly is used to prevent pipeline media from leaking. A drainage groove 11 is opened on the inner wall of the plugging plate 1. The drainage groove 11 penetrates through the inner wall of the plugging plate 1 in a diagonal thread manner. A drainage valve 10 is fixedly connected to the middle part of the inner wall of the plugging plate 1. The drainage groove 11 can guide the pipeline media to converge together and flow out from the drainage valve 10. A splicing groove 12 is opened on the left part of the plugging plate 1. The shape of the right part of the plugging plate 1 is complementary to the shape of the splicing groove 12. The splicing groove 12 provides for the splicing and assembly of different plugging plates 1.

[0025] Referring to Figure 1 and Figure 4, the sealing assembly includes a base layer 13 made of rubber, which has good sealing performance and oil resistance. The base layer 13 is fixedly connected to the inner wall of the leak stoppage plate 1. The base layer 13 can seal the pipeline to prevent the leakage of pipeline medium. The inner wall of the base layer 13 is fixedly connected with a filling layer 14 made of silicone rubber, which has good flexibility and elasticity. The filling layer 14 can fill the uneven surface or small defects to ensure close contact of the contact surface.

[0026] Working principle: When using this device, place the leak stoppage plate 1 at the pipeline leakage point, rotate the fixing plate two 4 to cover the upper part of the pipeline, then hold the push plate 7 and drive the threaded rod 6 to rotate, so that the push plate 7 passes over the fixing plate two 4 and is located above the installation groove 9. Then use a triangular screwdriver to rotate the limit plate 8, the limit plate 8 drives the threaded rod 6 to rotate, and the threaded rod 6 drives the push plate 7 to move downward. When the push plate 7 moves downward, it will abut and squeeze inside the installation groove 9. Continuously rotate the limit plate 8 until the threaded rod 6 cannot rotate. At this time, the base layer 13 and the filling layer 14 will fit on the outer surface of the pipeline. The base layer 13 can ensure the sealing performance between the leak stoppage plate 1 and the pipeline, and the filling layer 14 can fill the gap between the pipeline and the base layer 13 to prevent the generation of gaps. If one leak stoppage plate 1 cannot cover the pipeline leakage point, the splicing groove 12 of another leak stoppage plate 1 can be pressed on the right side of the first leak stoppage plate 1, and then installation can be carried out to achieve the function of pipeline leak stoppage.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline spiral weld defect repair device, comprising a plugging plate (1), characterized in that: The left and right parts of the rear side of the plugging plate (1) are both rotatably connected to connecting plates (2), and the front parts of the two connecting plates (2) are fixedly connected to a fixing plate (4). The front part of the plugging plate (1) is fixedly connected to a fixing block (3), and the inside of the fixing block (3) is rotatably connected to a rotating block (5), and the inside of the rotating block (5) is rotatably connected to a threaded rod (6). The upper outer periphery of the threaded rod (6) is threadedly connected to a push plate (7), and the upper end of the threaded rod (6) is fixedly connected to a limiting plate (8), and the push plate (7) abuts against the upper middle part of the fixing plate (4). The inner wall of the plugging plate (1) is provided with a sealing component, and the sealing component is used to prevent leakage of pipeline medium.

2. A pipeline spiral weld defect repairing device according to claim 1, characterized in that: The sealing assembly comprises a base layer (13), the base layer (13) being fixedly connected to the inner wall of the plugging plate (1), and the inner wall of the base layer (13) being fixedly connected to a filling layer (14).

3. A pipeline spiral weld defect repairing device according to claim 1, characterized in that: A mounting groove (9) is provided in the middle of the upper part of the second fixing plate (4), and the pushing plate (7) abuts against the inside of the mounting groove (9).

4. A pipeline spiral weld defect repairing device according to claim 1, characterized in that: The threaded rod (6) passes through the second fixing plate (4).

5. The pipeline spiral weld defect repairing device according to claim 1 is characterized by: The inner wall of the plugging plate (1) is provided with a drainage groove (11), and the drainage groove (11) penetrates the inner wall of the plugging plate (1) in the form of a diagonal thread.

6. The pipeline spiral weld defect repairing device according to claim 1 is characterized by: A drainage valve (10) is fixedly connected to the middle portion of the inner wall of the leak-blocking plate (1).

7. The pipeline spiral weld defect repairing device according to claim 1 is characterized by: The left portion of the plugging plate (1) is provided with a splicing groove (12), and the shape of the right portion of the plugging plate (1) and the shape of the splicing groove (12) complement each other.

8. The pipeline spiral weld defect repairing device according to claim 2 is characterized by: The base layer (13) is made of rubber, and the filling layer (14) is made of silicone rubber.

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