Temporary plugging mechanism for gas pipeline

Abstract

The utility model belongs to the technical field of fuel gas maintenance, and particularly relates to a fuel gas pipeline temporary plugging mechanism which comprises a supporting plate, an adjusting mechanism is fixedly arranged at the left end of the upper side wall of the supporting plate, a supporting frame is fixedly arranged at the upper end of the adjusting mechanism, and a fuel gas pipeline is arranged in the supporting frame. The device comprises a supporting plate, a sliding groove is formed in the right end of the upper side wall of the supporting plate, a moving mechanism is arranged in the sliding groove, a fixing plate is fixedly arranged at the upper end of the moving mechanism, and a sealing cover is fixedly arranged on the left side wall of the fixing plate. The right end of the gas pipeline and the edge of the sealing cover can be sealed through the first sealing layer and the second sealing layer, when gas leaks, whether gas leaks or not is verified by directly observing whether the plastic floating strip in the sealing cover moves or not, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas maintenance, in particular to a temporary blocking mechanism for a gas pipeline. Background Art

[0002] During the inspection or maintenance of the gas pipeline, the entire gas pipeline needs to be shut down and vented due to welding. In order to prevent the residual gas inside the pipeline from leaking, the port is often blocked by a blocking mechanism;

[0003] However, the existing blocking mechanism still has the following technical problems when used:

[0004] After the existing plugging mechanism blocks the pipeline, if the sealing performance of the plugging is poor, leakage will occur after the plugging. The gas is colorless and odorless before being mixed with the odorizer, and there is no way to detect it in time, which is easy to cause unexpected danger.

[0005] Therefore, a temporary plugging mechanism for a gas pipeline is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a temporary plugging mechanism for a gas pipeline to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temporary plugging mechanism for a gas pipeline, comprising a support plate, an adjusting mechanism is fixedly arranged on the left end of the side wall of the support plate, a support frame is fixedly arranged on the upper end of the adjusting mechanism, a gas pipeline is arranged inside the support frame, a slide groove is opened on the right end of the side wall of the support plate, a moving mechanism is arranged inside the slide groove, a fixing plate is fixedly arranged on the upper end of the moving mechanism, a sealing cover is fixedly arranged on the left side wall of the fixing plate, a first sealing layer is arranged inside the sealing cover on the left side wall of the fixing plate, and a second sealing layer is fixedly arranged on the left side wall of the sealing cover Sealing layer, the outer wall of the gas pipeline contacts the side wall of the second sealing layer, the right side wall of the gas pipeline contacts the left side wall of the first sealing layer, the left side wall of the fixing plate is fixedly provided with a fixing tube, the left end of the fixing tube is fixedly provided with an air bag, the right side wall of the fixing plate is fixedly provided with an air pump, the right side wall of the air pump is fixedly provided with an air intake pipe, the left side wall of the air pump is fixedly provided with a connecting tube, the left end of the connecting tube is fixedly connected to the right side wall of the air bag, the interior of the sealing cover is fixedly provided with evenly arranged fixing rings, and the interiors of the evenly arranged fixing rings are fixedly provided with plastic floating strips.

[0008] Preferably, a symmetrical mounting bracket is fixedly provided on the lower side wall of the support plate, and the side walls of the symmetrical mounting bracket are both threadedly provided with symmetrical fixing bolts.

[0009] Preferably, the adjusting mechanism includes a U-shaped plate, which is fixedly connected to the upper side wall of the support plate, a first screw rod is provided inside the U-shaped plate for longitudinal rotation via a bearing, a rotating block is fixedly provided at the lower end of the first screw rod, a lifting block is threadedly provided on the rod wall of the first screw rod, the left and right walls of the lifting block are both slidably connected to the inner wall of the U-shaped plate, and symmetrical moving rods are fixedly provided on the upper side wall of the lifting block, and the two moving rods are both slidably connected to the upper side wall of the U-shaped plate and the upper ends thereof are fixedly connected to the lower side wall of the support frame.

[0010] Preferably, the support frame is in a "V" shape.

[0011] Preferably, the sealing cover is a transparent plastic cover.

[0012] Preferably, the moving mechanism includes a second screw rod, which is arranged inside the slide groove for transverse rotation through a bearing, the right end of the second screw rod extends to the right end of the support plate and is fixedly provided with a handle, the rod wall of the second screw rod is threaded with a moving block, the upper side wall of the moving block is fixedly provided with a fixing rod, and the upper end of the fixing rod is fixedly connected to the lower side wall of the fixing plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] After the right port of the gas pipeline is blocked by the fixing plate and the air bag, the right end of the gas pipeline and the edge of the sealing cover can be sealed by the first sealing layer and the second sealing layer. When there is a gas leak, the leakage can be verified directly by observing whether the plastic floating strip inside the sealing cover moves, thereby improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 It is a side structural diagram of the adjustment mechanism;

[0018] Figure 4 It is a schematic diagram of the top view of the moving mechanism;

[0019] Figure 5 It is a schematic diagram of the side structure of the sealing cover.

[0020] In the figure: 1 support plate, 2 support frame, 3 gas pipeline, 4 fixed plate, 5 sealing cover, 6 first sealing layer, 7 second sealing layer, 8 fixed pipe, 9 air bag, 10 air pump, 11 intake pipe, 12 connecting pipe, 13 fixed rod, 14 fixed ring, 15 plastic floating strip, 16 mounting frame, 17 U-shaped plate, 18 first screw rod, 19 rotating block, 20 lifting block, 21 moving rod, 22 second screw rod, 23 handle, 24 moving block, 25 fixed rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Example:

[0024] See also Figure 1-5 , the utility model provides a technical solution:

[0025] A temporary plugging mechanism for a gas pipeline comprises a support plate 1, an adjusting mechanism is fixedly arranged on the left end of the upper side wall of the support plate 1, a support frame 2 is fixedly arranged on the upper end of the adjusting mechanism, a gas pipeline 3 is arranged inside the support frame 2, a slide groove is opened on the right end of the upper side wall of the support plate 1, a moving mechanism is arranged inside the slide groove, a fixed plate 4 is fixedly arranged on the upper end of the moving mechanism, a sealing cover 5 is fixedly arranged on the left side wall of the fixed plate 4, a first sealing layer 6 is arranged inside the sealing cover 5 on the left side wall of the fixed plate 4, a second sealing layer 7 is fixedly arranged on the left side wall of the sealing cover 5, an outer wall of the gas pipeline 3 contacts the side wall of the second sealing layer 7, a right side wall of the gas pipeline 3 contacts the left side wall of the first sealing layer 6, a fixed pipe 8 is fixedly arranged on the left side wall of the fixed plate 4, and a fixed pipe 8 is fixedly arranged on the left end of the fixed pipe 8 An airbag 9 is arranged, an air pump 10 is fixedly arranged on the right side wall of the fixed plate 4, an air intake pipe 11 is fixedly arranged on the right side wall of the air pump 10, a connecting pipe 12 is fixedly arranged on the left side wall of the air pump 10, the left end of the connecting pipe 12 is fixedly connected to the right side wall of the airbag 9, and the interior of the sealing cover 5 is fixedly provided with evenly arranged fixing rings 14, and the interiors of the evenly arranged fixing rings 14 are fixedly provided with plastic floating strips 15. After the right port of the gas pipeline 3 is blocked by the fixed plate 4 and the airbag 9, the right end of the gas pipeline 3 and the edge of the sealing cover 5 can be sealed by the first sealing layer 6 and the second sealing layer 7. When there is a gas leak, whether there is a gas leak can be verified by directly observing whether the plastic floating strip 15 inside the sealing cover 5 moves, thereby improving the safety of use.

[0026] A symmetrical mounting bracket 16 is fixedly provided on the lower side wall of the support plate 1 , and symmetrical fixing bolts are threadedly provided on the side walls of the symmetrical mounting bracket 16 .

[0027] The adjusting mechanism includes a U-shaped plate 17, which is fixedly connected to the upper side wall of the support plate 1. A first screw rod 18 is longitudinally rotated inside the U-shaped plate 17 through a bearing. A rotating block 19 is fixedly provided at the lower end of the first screw rod 18. A lifting block 20 is threadedly provided on the rod wall of the first screw rod 18. The left and right walls of the lifting block 20 are both slidably connected to the inner wall of the U-shaped plate 17. Symmetrical moving rods 21 are fixedly provided on the upper side wall of the lifting block 20. The two moving rods 21 are both slidably connected to the upper side wall of the U-shaped plate 17 and their upper ends are fixedly connected to the lower side wall of the support frame 2.

[0028] The support frame 2 is in a "V" shape, which not only provides a more stable support, but also can support and fix gas pipelines 3 of different thicknesses.

[0029] The sealing cover 5 is a transparent plastic cover, which is convenient for observing whether the plastic floating strip 15 moves.

[0030] The moving mechanism includes a second screw rod 22, which is arranged inside the slide groove for horizontal rotation through a bearing. The right end of the second screw rod 22 extends to the right end of the support plate 1 and is fixedly provided with a handle 23. The rod wall of the second screw rod 22 is threadedly provided with a moving block 24, and the upper side wall of the moving block 24 is fixedly provided with a fixing rod 13. The upper end of the fixing rod 13 is fixedly connected to the lower side wall of the fixing plate 4. The moving mechanism drives the fixing plate 4, the fixing tube 8 and the airbag 9 to be inserted into the right end of the gas pipeline 3, so that the outer wall of the gas pipeline 3 is contacted and sealed with the second sealing layer 7, and the right end of the gas pipeline 3 is squeezed and sealed with the left side wall of the first sealing layer 6, and the right end of the gas pipeline 3 is sealed by the expansion of the airbag 9.

[0031] Working principle:

[0032] When the gas pipeline 3 needs to be blocked, the height of the support frame 2 is adjusted by the adjustment mechanism, so that the support frame 2 is in contact with the lower side wall of the gas pipeline 3 to achieve the effect of supporting the pipeline, and the fixing plate 4 is driven to move to the left by the moving mechanism, and the fixing pipe 8 and the air bag 9 are inserted into the inside of the gas pipeline 3, so that the right side wall of the gas pipeline 3 is in contact with the first sealing layer 6, and the second sealing layer 7 of the left side wall of the sealing cover 5 is in contact with the outer wall of the gas pipeline 3, and the air pump 10 is started, and the air pump 10 discharges the external gas into the inside of the air bag 9 through the air inlet pipe 11 and the connecting pipe 12, and the right end of the gas pipeline 3 is blocked by the expansion of the air bag 9. In the later blocking process, since the inside of the air bag 9 is sealed, under normal circumstances, the plastic floating strip 15 will not shake, and if there is a gas leak at the right end of the gas pipeline 3, gas will enter the inside of the sealing cover 5, thereby blowing the plastic floating strip 15, causing the plastic floating strip 15 to move, which means that there is a gas leak at the right end of the gas pipeline 3.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary gas pipeline blocking mechanism, comprising a support plate (1), characterized in that: An adjustment mechanism is fixedly provided at the left end of the upper side wall of the support plate (1), a support frame (2) is fixedly provided at the upper end of the adjustment mechanism, a gas pipeline (3) is arranged inside the support frame (2), a slide groove is provided at the right end of the upper side wall of the support plate (1), a moving mechanism is arranged inside the slide groove, a fixed plate (4) is fixedly provided at the upper end of the moving mechanism, a sealing cover (5) is fixedly provided on the left side wall of the fixed plate (4), a first sealing layer (6) is arranged inside the sealing cover (5) on the left side wall of the fixed plate (4), a second sealing layer (7) is fixedly provided on the left side wall of the sealing cover (5), an outer wall of the gas pipeline (3) contacts the side wall of the second sealing layer (7), and the The right side wall of the gas pipeline (3) contacts the left side wall of the first sealing layer (6); a fixing tube (8) is fixedly provided on the left side wall of the fixing plate (4); an air bag (9) is fixedly provided on the left end of the fixing tube (8); an air pump (10) is fixedly provided on the right side wall of the fixing plate (4); an air intake pipe (11) is fixedly provided on the right side wall of the air pump (10); a connecting tube (12) is fixedly provided on the left side wall of the air pump (10); the left end of the connecting tube (12) is fixedly connected to the right side wall of the air bag (9); evenly arranged fixing rings (14) are fixedly provided inside the sealing cover (5); and plastic floating strips (15) are fixedly provided inside the evenly arranged fixing rings (14).

2. A temporary plugging mechanism for a gas pipeline according to claim 1, characterized in that: A symmetrical mounting frame (16) is fixedly provided on the lower side wall of the support plate (1), and symmetrical fixing bolts are threadedly provided on the side walls of the symmetrical mounting frame (16).

3. A temporary plugging mechanism for a gas pipeline according to claim 1, characterized in that: The adjustment mechanism comprises a U-shaped plate (17), wherein the U-shaped plate (17) is fixedly connected to the upper side wall of the support plate (1), a first screw rod (18) is longitudinally rotatably arranged inside the U-shaped plate (17) via a bearing, a rotating block (19) is fixedly arranged at the lower end of the first screw rod (18), a lifting block (20) is threadedly arranged on the rod wall of the first screw rod (18), the left side wall and the right side wall of the lifting block (20) are both slidably connected to the inner wall of the U-shaped plate (17), and symmetrical moving rods (21) are fixedly arranged on the upper side wall of the lifting block (20), and the two moving rods (21) are both slidably connected to the upper side wall of the U-shaped plate (17) and their upper ends are fixedly connected to the lower side wall of the support frame (2).

4. A temporary plugging mechanism for a gas pipeline according to claim 1, characterized in that: The support frame (2) is in a "V" shape.

5. A temporary gas pipeline blocking mechanism according to claim 1, characterized in that: The sealing cover (5) is a transparent plastic cover.

6. A temporary gas pipeline blocking mechanism according to claim 1, characterized in that: The moving mechanism comprises a second screw rod (22), the second screw rod (22) being arranged inside the slide groove for transverse rotation via a bearing, the right end of the second screw rod (22) extending to the right end of the support plate (1) and being fixedly provided with a handle (23), a moving block (24) being threadedly provided on the rod wall of the second screw rod (22), a fixing rod (13) being fixedly provided on the upper side wall of the moving block (24), and the upper end of the fixing rod (13) being fixedly connected to the lower side wall of the fixing plate (4).

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