Pipeline welding plugging device

Abstract

The utility model discloses a pipeline welding plugging device, which relates to the technical field of pipeline welding and comprises a pipeline body, a fixing rod is movably arranged in the pipeline body, a sleeve is slidably arranged on the outer surface of the fixing rod, and a first fixing block is further fixedly arranged on the outer surface of the fixing rod. A first fixing block is fixedly arranged on the outer surface of the pipeline body, a first rotating rod is rotationally connected to the outer surface of the first fixing block, a second fixing block is fixedly arranged on the outer surface of the sleeve, a second rotating rod is rotationally connected to the outer surface of the second fixing block, an arc-shaped plate is arranged on the inner wall of the pipeline body, and the first rotating rod and the second rotating rod are rotationally connected into the arc-shaped plate. An electric push rod is installed in the fixing rod, a connecting rod is fixedly arranged at the output end of the electric push rod, the connecting rod is slidably inserted into the fixing rod, and the other end of the connecting rod is fixedly arranged in the sleeve. According to the utility model, the pipeline body can be internally clamped after being plugged, so that the plugging effect is improved, and meanwhile, the device can be positioned after being sealed.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline welding, and in particular to a pipeline welding plugging device. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. Usually, the fluid flows from the high pressure part of the pipeline to the low pressure part after being pressurized by blowers, compressors, pumps and boilers. At the same time, the fluid can also be conveyed by its own pressure or gravity. Pipelines are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices.

[0003] During the welding process of pipelines, it is sometimes necessary to inject protective inert gas into the welding pipeline. At this time, the pipeline openings on both sides of the pipeline need to be blocked to prevent the injected gas from overflowing. In the existing blocking process, the pipeline openings at both ends of the pipeline are generally blocked by sealing plugs, which easily causes the gas pressure generated in the pipeline to fall off when the gas is injected, resulting in leakage, and the blocking effect is poor.

[0004] In view of the above problems, the present application provides a pipeline welding plugging device. Summary of the invention

[0005] In order to solve the problem that when gas is filled in the pipeline, the gas pressure generated in the pipeline will cause the sealing plug to fall off, resulting in leakage; the purpose of the utility model is to provide a pipeline welding plugging device.

[0006] To achieve the purpose of this application, this application provides the following technical solutions:

[0007] A pipeline welding plugging device comprises a pipeline body, wherein a fixing rod is movably provided in the pipeline body, a sleeve is slidably provided on the outer surface of the fixing rod, a first fixing block is fixedly provided on the outer surface of the fixing rod, a first rotating rod is rotatably connected to the outer surface of the first fixing block, a second fixing block is fixedly provided on the outer surface of the sleeve, a second rotating rod is rotatably connected to the outer surface of the second fixing block, an arc plate is provided on the inner wall of the pipeline body, and the first rotating rod and the second rotating rod are respectively rotatably connected in the arc plate;

[0008] An electric push rod is installed in the fixed rod, a connecting rod is fixedly provided at the output end of the electric push rod, the connecting rod is slidably inserted in the fixed rod, and the other end of the connecting rod is fixedly provided in the sleeve.

[0009] Preferably, a second limit block is fixedly provided on one side of the arc plate, one end of the first rotating rod is rotatably connected to the outer surface of the second limit block, a connecting shaft is rotatably inserted in the first rotating rod, and the connecting shaft is rotatably inserted in the second rotating rod.

[0010] Preferably, a second limit block is fixedly provided on one side of the arc plate, one end of the first rotating rod is rotatably connected to the outer surface of the second limit block, a connecting shaft is rotatably inserted in the first rotating rod, and the connecting shaft is rotatably inserted in the second rotating rod.

[0011] Preferably, a first limit block is fixedly provided on one side of the arc-shaped plate, and one end of the second rotating rod is rotatably connected to the outer surface of the first limit block.

[0012] Preferably, a slide groove is provided in the sleeve, a guide rod is fixedly provided on the outer surface of the fixing rod, and the guide rod is slidably arranged in the slide groove.

[0013] Preferably, a fixing ring is fixedly sleeved on the outer surface of the fixing rod, an extension plate is fixedly provided on the outer surface of the fixing ring, a limiting ring is fixedly provided at one end of the extension plate, the electric push rod is installed on one side of the limiting ring, and a sealing plug is fixedly provided on the other side of the limiting ring.

[0014] Preferably, a fixing plate is fixedly provided on one side of the sealing plug, a connecting plate is fixedly provided on the outer surface of the fixing plate, a transverse plate is fixedly provided on one side of the connecting plate, the internal thread of the transverse plate passes through a threaded rod, and a clamp is rotatably connected to the bottom end of the threaded rod.

[0015] Preferably, a sliding rod slides through the transverse plate, and one end of the sliding rod is fixed on one side of the clamping member.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The arc-shaped plate provided in the utility model is attached to the inner wall of the pipeline body, and can be clamped inside after the pipeline body is blocked, so as to avoid the sealing plug from falling off after the gas is filled, causing leakage, thereby improving the blocking effect.

[0018] 2. The clamping piece designed in the utility model can be clamped on the outer surface of the pipeline body, and then the device can be positioned after the sealing plug seals the pipeline body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the pipeline body of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the fixing rod of the utility model;

[0023] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the sleeve of the utility model;

[0024] Figure 5 This is a schematic diagram of the fixed plate structure of the utility model.

[0025] In the figure: 1. pipeline body; 11. fixed plate; 111. connecting plate; 12. cross plate; 13. threaded rod; 14. sliding rod; 15. clamping member; 16. sealing plug; 17. limiting ring; 18. extension plate; 19. fixing ring; 2. fixing rod; 21. electric push rod; 22. sleeve; 221. slide groove; 23. guide rod; 24. connecting rod; 25. first fixed block; 26. first rotating rod; 27. second fixed block; 28. second rotating rod; 281. connecting shaft; 29. ​​arc plate; 291. first limiting block; 292. second limiting block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.

[0028] Example 1

[0029] like Figure 1-5As shown, the utility model provides a pipeline welding plugging device, including a pipeline body 1, a fixing rod 2 is movably provided in the pipeline body 1, a sleeve 22 is slidably provided on the outer surface of the fixing rod 2, a first fixing block 25 is fixedly provided on the outer surface of the fixing rod 2, a first rotating rod 26 is rotatably connected to the outer surface of the first fixing block 25, a second fixing block 27 is fixedly provided on the outer surface of the sleeve 22, a second rotating rod 28 is rotatably connected to the outer surface of the second fixing block 27, an arc plate 29 is provided on the inner wall of the pipeline body 1, and the first rotating rod 26 and The second rotating rod 28 is respectively rotatably connected in the arc plate 29, and the electric push rod 21 is installed in the fixed rod 2. The output end of the electric push rod 21 is fixedly provided with a connecting rod 24, and the connecting rod 24 is slidably inserted in the fixed rod 2, and the other end of the connecting rod 24 is fixedly provided in the sleeve 22. A first limit block 291 is fixedly provided on one side of the arc plate 29, and one end of the second rotating rod 28 is rotatably connected to the outer surface of the first limit block 291, and a second limit block 292 is fixedly provided on the other side of the arc plate 29. The first end is rotatably connected to the outer surface of the second limit block 292, a connecting shaft 281 is rotatably inserted in the first rotating rod 26, and the connecting shaft 281 is rotatably inserted in the second rotating rod 28, a sliding groove 221 is opened in the sleeve 22, and a guide rod 23 is fixed on the outer surface of the fixed rod 2, and the guide rod 23 is slidably arranged in the sliding groove 221. By turning on the electric push rod 21, the connecting rod 24 drives the sleeve 22 to slide on the outer surface of the fixed rod 2, and at the same time, the second rotating rod 28 rotates on the outer surface of the second fixed block 27, and the second rotating rod 28 rotates. The other end of the movable rod 28 rotates on the outer surface of the first limit block 291, so that the arc plate 29 can move. The connecting shaft 281 is set so that when the second rotating rod 28 rotates, the two ends of the first rotating rod 26 respectively rotate on the outer surfaces of the first fixed block 25 and the second limit block 292, so that the arc plate 29 can be attached to the inner wall of the pipeline body 1, and then after the pipeline body 1 is blocked, the inner clamp is performed to prevent the sealing plug 16 from falling off after the gas is filled, causing leakage, thereby improving the blocking effect.

[0030] A fixing ring 19 is fixedly sleeved on the outer surface of the fixing rod 2, an extension plate 18 is fixedly provided on the outer surface of the fixing ring 19, a limiting ring 17 is fixedly provided at one end of the extension plate 18, an electric push rod 21 is installed on one side of the limiting ring 17, and a sealing plug 16 is fixedly provided on the other side of the limiting ring 17.

[0031] By adopting the above technical solution, the pipeline body 1 can be blocked.

[0032] A fixing plate 11 is fixedly provided on one side of the sealing plug 16, a connecting plate 111 is fixedly provided on the outer surface of the fixing plate 11, a transverse plate 12 is fixedly provided on one side of the connecting plate 111, an internal thread of the transverse plate 12 passes through a threaded rod 13, a clamping piece 15 is rotatably connected to the bottom end of the threaded rod 13, a sliding rod 14 is slidably passed through the transverse plate 12, and one end of the sliding rod 14 is fixedly provided on one side of the clamping piece 15.

[0033] By adopting the above technical solution, the device can be positioned.

[0034] Working principle:

[0035] First, the fixing rod 2 is inserted into the pipe body 1, and the sealing plug 16 is tightly sealed on one side of the pipe body 1, so that the pipe body 1 can be blocked. The threaded rod 13 is rotated in the horizontal plate 12 to make the threaded rod 13 descend. Under the action of the sliding rod 14, the clamping member 15 descends and is clamped on the outer surface of the pipe body 1. After the sealing plug 16 seals the pipe body 1, the device can be positioned;

[0036] Secondly, the electric push rod 21 is turned on, and the connecting rod 24 drives the sleeve 22 to slide on the outer surface of the fixed rod 2. At this time, the second rotating rod 28 rotates on the outer surface of the second fixed block 27, and the other end of the second rotating rod 28 rotates on the outer surface of the first limit block 291, so that the arc plate 29 can move accordingly. When the second rotating rod 28 rotates, the connecting shaft 281 drives the two ends of the first rotating rod 26 to rotate on the outer surfaces of the first fixed block 25 and the second limit block 292 respectively, so that the arc plate 29 fits the inner wall of the pipeline body 1, and then after the pipeline body 1 is blocked, the inner clamp is performed to avoid the sealing plug 16 from falling off after the gas is filled, causing leakage, thereby improving the blocking effect.

[0037] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.

Claims

1. A pipeline welding plugging device, comprising a pipeline body (1), characterized in that: A fixing rod (2) is movably provided inside the pipe body (1), a sleeve (22) is slidably provided on the outer surface of the fixing rod (2), a first fixing block (25) is fixedly provided on the outer surface of the fixing rod (2), the outer surface of the first fixing block (25) is rotatably connected to a first rotating rod (26), a second fixing block (27) is fixedly provided on the outer surface of the sleeve (22), the outer surface of the second fixing block (27) is rotatably connected to a second rotating rod (28), an arc plate (29) is provided on the inner wall of the pipe body (1), and the first rotating rod (26) and the second rotating rod (28) are rotatably connected inside the arc plate (29), respectively.

2. A pipeline welding plugging device as claimed in claim 1, characterized in that: An electric push rod (21) is installed in the fixed rod (2), and a connecting rod (24) is fixedly provided at the output end of the electric push rod (21). The connecting rod (24) is slidably inserted in the fixed rod (2), and the other end of the connecting rod (24) is fixedly provided in the sleeve (22).

3. A pipeline welding plugging device as claimed in claim 1, characterized in that: A first limit block (291) is fixedly provided on one side of the arc-shaped plate (29), and one end of the second rotating rod (28) is rotatably connected to the outer surface of the first limit block (291).

4. A pipeline welding plugging device as claimed in claim 3, characterized in that: A second limit block (292) is fixedly provided on one side of the arc-shaped plate (29); one end of the first rotating rod (26) is rotatably connected to the outer surface of the second limit block (292); a connecting shaft (281) is rotatably inserted in the first rotating rod (26); and the connecting shaft (281) is rotatably inserted in the second rotating rod (28).

5. A pipeline welding plugging device as claimed in claim 1, characterized in that: A sliding groove (221) is provided in the sleeve (22), and a guide rod (23) is fixedly provided on the outer surface of the fixed rod (2), and the guide rod (23) is slidably arranged in the sliding groove (221).

6. A pipeline welding plugging device as claimed in claim 2, characterized in that: The outer surface of the fixing rod (2) is fixedly sleeved with a fixing ring (19), the outer surface of the fixing ring (19) is fixedly provided with an extension plate (18), one end of the extension plate (18) is fixedly provided with a limiting ring (17), the electric push rod (21) is installed on one side of the limiting ring (17), and the other side of the limiting ring (17) is fixedly provided with a sealing plug (16).

7. A pipeline welding plugging device as claimed in claim 6, characterized in that: A fixing plate (11) is fixedly provided on one side of the sealing plug (16), a connecting plate (111) is fixedly provided on the outer surface of the fixing plate (11), a transverse plate (12) is fixedly provided on one side of the connecting plate (111), an internal thread of the transverse plate (12) passes through a threaded rod (13), and a clamping member (15) is rotatably connected to the bottom end of the threaded rod (13).

8. A pipeline welding plugging device as claimed in claim 7, characterized in that: A sliding rod (14) slides through the transverse plate (12), and one end of the sliding rod (14) is fixedly arranged on one side of the clamping member (15).

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