Gas leakage plugging device

Abstract

The utility model discloses a gas leakage plugging device which comprises a plugging unit, the plugging unit comprises two semicircular pipes and two pairs of semicircular sealing rings fixedly connected to the inner walls of the two semicircular pipes respectively, and the two ends of the two semicircular pipes are jointly provided with hoops movably connected to the semicircular pipes in a sleeving mode. And one sides of the two semicircular pipes are fixedly connected with symmetrically-arranged fixing plates, and the top of one fixing plate is fixedly connected with a limiting rod. The gas pipeline is remotely clamped by the two semicircular pipes through the first telescopic plate and the second telescopic plate, so that a safe distance is kept between a worker and the leakage position of the gas pipeline, and then the first telescopic plate and the second telescopic plate are tightly attached together by rotating the fixing rod; therefore, the two semicircular pipes seal the gas pipeline through the two pairs of semicircular sealing rings, the gas leakage rate is greatly reduced, and then the harm of gas to workers is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plugging devices, in particular to a gas leakage plugging device. Background Technique

[0002] Gas is a combustible gas, mainly used for heating, cooking and industrial applications. Common gases include natural gas (the main component is methane), liquefied petroleum gas (LPG, the main components are propane and butane), and coal gas. Natural gas is generally transported through pipelines, while liquefied petroleum gas is stored in cylinders in a liquid state. Gas has the characteristics of high energy density and clean combustion, making it an ideal energy choice in many application scenarios.

[0003] Gas is usually transported through gas pipelines to provide fuel for equipment such as gas stoves and water heaters. When cracks occur in the gas pipeline, gas will spray out from the cracks of the gas pipeline. If not dealt with in time, it may cause the expansion of the cracks and pose great safety hazards. When the gas valve fails, gas will continuously flow in the gas pipeline. When workers plug the cracks in the gas pipeline, workers need to directly contact the gas pipeline, making the distance between the worker's nasal cavity and the crack too close. When the gas leakage is large, the gas sprayed out from the crack will endanger the physical health of workers. Even wearing a mask still cannot completely isolate the gas, thus making the gas plugging work have safety hazards. Therefore, a gas leakage plugging device is proposed. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the description of this application, to avoid obscuring the purpose of this part, the abstract of the description, and the title of the utility model. Such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above-mentioned existing gas leakage plugging device, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a gas leakage plugging device, which is suitable for solving the problem that when workers plug the cracks in the gas pipeline, workers need to directly contact the gas pipeline, making the distance between the worker's nasal cavity and the crack too close, and the gas sprayed out from the crack will endanger the physical health of workers.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: A gas leakage plugging device, comprising:

[0008] The plugging unit includes two semi-circular pipes and two pairs of semi-circular sealing rings respectively fixedly connected to the inner walls of the two semi-circular pipes. Clamps are movably sleeved on the semi-circular pipes at both ends of the two semi-circular pipes. Symmetrically arranged fixing plates are fixedly connected to one side of each of the two semi-circular pipes. A limiting rod is fixedly connected to the top of one of the fixing plates, and the end of the limiting rod slidably penetrates through the other fixing plate. Threaded holes are formed on the opposite surfaces of the two fixing plates.

[0009] The adjusting unit includes a first telescopic plate and a second telescopic plate respectively fixedly connected to one side of the two semi-circular pipes. Positioning rods are threadedly connected to one side of each of the first telescopic plate and the second telescopic plate. A plurality of positioning holes for fitting the positioning rods are formed on one side of each of the first telescopic plate and the second telescopic plate. Threaded holes are formed on the opposite surfaces of the first telescopic plate and the second telescopic plate. A fixing rod is rotatably connected to the top of the first telescopic plate, and the fixing rod penetrates through the first telescopic plate and the second telescopic plate and is threadedly connected to the second telescopic plate.

[0010] As a preferred solution of the gas leakage plugging device of the present utility model, wherein: A rectangular block is fixedly connected to the top of the second telescopic plate, the rectangular block slidably penetrates through the first telescopic plate, a chute is formed on one side of the rectangular block, a convex block is slidably arranged inside the chute, and a first spring is fixedly connected to the inner wall of the chute. One end of the first spring is fixedly connected to the convex block.

[0011] As a preferred solution of the gas leakage plugging device of the present utility model, wherein: A limiting groove is formed on the top of the rectangular block, a clamping rod is slidably arranged on the top of the convex block, and the clamping rod is slidably arranged in the limiting groove.

[0012] As a preferred solution of the gas leakage plugging device of the present utility model, wherein: An air outlet pipe is fixedly communicated with one side of one of the semi-circular pipes, and a valve is fixedly sleeved on the end of the air outlet pipe.

[0013] As a preferred solution of the gas leakage plugging device of the present utility model, wherein: A straight pipe is fixedly communicated with one side of the air outlet pipe, a piston rod slidably penetrates through one end of the straight pipe, a circular plate is fixedly connected to one end of the piston rod located inside the straight pipe cavity, and a second spring is fixedly connected to the side of the circular plate facing the piston rod.

[0014] As a preferred solution of the gas leakage plugging device of the present utility model, wherein: A sleeve is fixedly connected to the inner wall of one of the semi-circular pipes, and a round hole for fitting the air outlet pipe is formed on one side of the sleeve.

[0015] The beneficial effects of the present invention are as follows: when a gas pipeline leaks, the two semicircular tubes are remotely clamped on the gas pipeline by the first telescopic plate and the second telescopic plate to ensure that workers maintain a safe distance from the leaking part of the gas pipeline. Then, the fixing rod is rotated to tightly fit the first telescopic plate and the second telescopic plate together, so that the two semicircular tubes seal the gas pipeline through two pairs of semicircular sealing rings, and greatly reduce the amount of gas leakage, thereby reducing the harm of gas to workers, thereby making it easier for workers to safely use clamps to seal the cracks in the gas pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of the gas leakage blocking device proposed in the utility model;

[0018] Figure 2 This is a schematic diagram of the local structure of the plugging unit proposed in the present invention;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of a rectangular block proposed by the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the protrusion and the clamping rod proposed in the utility model.

[0021] Figure 5 This is a schematic diagram of the internal structure of a half-section of a straight tube proposed in the present invention.

[0022] Description of the drawings: 100, sealing unit; 101, semicircular tube; 102, semicircular sealing ring; 103, clamp; 104, fixing plate; 105, limiting rod; 106, air outlet pipe; 107, straight tube; 108, piston rod; 109, disc; 110, second spring; 111, sleeve; 200, adjusting unit; 201, first telescopic plate; 202, second telescopic plate; 203, positioning rod; 204, fixing rod; 205, rectangular block; 206, protrusion; 207, first spring; 208, limiting groove; 209, clamping rod. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other manners different from those described herein. Those skilled in the art may make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is separate or selectively mutually exclusive with other embodiments.

[0026] Thirdly, the present utility model is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present utility model, for the sake of illustration, the cross-sectional views showing the device structure are enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0027] Embodiment

[0028] Referring to Figures 1-5 , for an embodiment of the present utility model, a gas leakage blocking device is provided, which is characterized by comprising: a blocking unit 100 and an adjusting unit 200;

[0029] Among them, the blocking unit 100 includes two semi-circular tubes 101 and two pairs of semi-circular sealing rings 102 respectively fixedly connected to the inner walls of the two semi-circular tubes 101. Clamps 103 are movably sleeved on the semi-circular tubes 101 at both ends of the two semi-circular tubes 101. Symmetrically arranged fixing plates 104 are fixedly connected to one side of each of the two semi-circular tubes 101. A limiting rod 105 is fixedly connected to the top of one of the fixing plates 104. The end of the limiting rod 105 slidably penetrates through the other fixing plate 104. Threaded holes are formed on the opposite surfaces of the two fixing plates 104;

[0030] The adjusting unit 200 includes a first telescopic plate 201 and a second telescopic plate 202 respectively fixedly connected to one side of the two semi-circular tubes 101. Positioning rods 203 are threadedly connected to one side of each of the first telescopic plate 201 and the second telescopic plate 202. A plurality of positioning holes adapted to the positioning rods 203 are formed on one side of each of the first telescopic plate 201 and the second telescopic plate 202. Threaded holes are formed on the opposite surfaces of the first telescopic plate 201 and the second telescopic plate 202. A fixing rod 204 is rotatably connected to the top of the first telescopic plate 201. The fixing rod 204 penetrates through the first telescopic plate 201 and the second telescopic plate 202 and is threadedly connected to the second telescopic plate 202.

[0031] When the fixed rod 204 no longer contacts the second telescopic plate 202, the two semi-circular pipes 101 can be separated from each other. Through the fixed plate 104 and the limit rod 105, the two semi-circular pipes 101 remain connected when separated. The semi-circular sealing rings 102 at both ends of the two semi-circular pipes 101 can form two annular sealing rings to seal the gas pipeline. Before plugging the gas pipeline, the two clamps 103 are not sleeved on the semi-circular sealing rings 102. Before plugging the gas pipeline, the worker passes the first telescopic plate 201 and the second telescopic plate 202 through the gas pipeline at a crack far from the gas pipeline, and makes the gas pipeline located between the two semi-circular pipes 101. Then, the two positioning rods 203 on the first telescopic plate 201 and the second telescopic plate 202 are rotated in sequence so that their ends are no longer inserted into the positioning holes;

[0032] Subsequently, the first telescopic plate 201 and the second telescopic plate 202 are stretched so that the lengths of the first telescopic plate 201 and the second telescopic plate 202 are extended. After the stretching is completed, the two positioning rods 203 are inserted into the corresponding positioning holes to provide a safety distance for the worker so that they will not inhale a large amount of gas. The lengths of the first telescopic plate 201 and the second telescopic plate 202 can be adjusted according to the gas leakage amount to facilitate the safe operation of the worker on the premise of ensuring safety. Then, the two semi-circular pipes 101 are moved to the crack of the gas pipeline. Subsequently, the fixed rod 204 is rotated to be spirally connected with the second telescopic plate 202. When the first telescopic plate 201 and the second telescopic plate 202 approach each other, the two semi-circular pipes 101 will also approach each other and wrap the crack of the gas pipeline. When the first telescopic plate 201 and the second telescopic plate 202 are tightly attached to each other, multiple semi-circular sealing rings 102 will seal the two ends of the two semi-circular pipes 101;

[0033] At this time, the leaked gas in the gas pipeline is blocked by the semi-circular sealing ring 102, and only a small amount of gas will overflow from the connection between the semi-circular sealing ring 102 and the gas pipeline. Then the worker wears a safety mask and uses the clamp 103 to clamp the semi-circular sealing rings 102 at both ends of the two semi-circular pipes 101, so that the semi-circular sealing ring 102 tightly fits the outer wall of the gas pipeline, thereby blocking the crack of the gas pipeline. Then the two fixing plates 104 are fixed by bolts and nuts. The threaded holes of the first telescopic plate 201 and the second telescopic plate 202 are close to the semi-circular pipe 101, and the first telescopic plate 201 and the second telescopic plate 202 are also fixed by bolts and nuts. Thus, the two semi-circular pipes 101 tightly fit the gas pipeline and block the leakage point. When there is no gas flowing in the gas pipeline, the bolts and nuts of the two fixing plates 104 and the first telescopic plate 201 and the second telescopic plate 202 are taken out. Then the two clamps 103 are taken out. Subsequently, after rotating the fixing rod 204 so that it no longer contacts the second telescopic plate 202, the two semi-circular pipes 101 can be removed from the gas pipeline to facilitate the replacement or repair of the gas pipeline.

[0034] In addition, a rectangular block 205 is fixedly connected to the top of the second telescopic plate 202. The rectangular block 205 slidably penetrates through the first telescopic plate 201. A chute is formed on one side of the rectangular block 205. A convex block 206 is slidably arranged inside the chute. A first spring 207 is fixedly connected to the inner wall of the chute. One end of the first spring 207 is fixedly connected to the convex block 206. A limiting groove 208 is formed on the top of the rectangular block 205. A clamping rod 209 is slidably arranged on the top of the convex block 206. The clamping rod 209 is slidably arranged in the limiting groove 208.

[0035] The position of the rectangular block 205 is close to the semi-circular pipe 101. The upper end of the convex block 206 is provided with a rounded corner with a smooth transition. When the first telescopic plate 201 and the second telescopic plate 202 are separated from each other, the first spring 207 will push the convex block 206 to protrude from one side of the rectangular block 205. A rectangular opening that fits the rectangular block 205 is formed on the top of the first telescopic plate 201. When the first telescopic plate 201 and the second telescopic plate 202 approach each other, the rounded corner of the convex block 206 will contact the rectangular opening of the first telescopic plate 201, so that the convex block 206 is completely squeezed into the chute of the rectangular block 205. After the first telescopic plate 201 and the second telescopic plate 202 are attached together, the upper surface of the first telescopic plate 201 is lower than the height of the chute. At this time, the first spring 207 will push the convex block 206 again to make it protrude from one side of the rectangular block 205;

[0036] At this time, the bottom of the rectangular block 205 abuts against the upper surface of the first telescopic plate 201, and the position of the convex block 206 is close to the two semi-circular pipes 101. Through the convex block 206, the two semi-circular pipes 101 can further tightly clamp the gas pipeline to reduce the gas leakage. A clamping rod 209 capable of lateral sliding is arranged at the top of the convex block 206. The clamping rod 209 can drive the convex block 206 to move along the limiting groove 208. Thus, the convex block 206 can be completely moved into the sliding groove of the rectangular block 205 by the clamping rod 209. The limiting groove 208 is J-shaped, and the position of the clamping rod 209 can be limited by the limiting groove 208. When the convex block 206 is completely moved into the sliding groove of the rectangular block 205, the clamping rod 209 is located at the end of the limiting groove 208, so that the first spring 207 will not push the convex block 206, thus facilitating the separation of the first telescopic plate 201 and the second telescopic plate 202.

[0037] Further, an air outlet pipe 106 is fixedly communicated with one side of one of the semi-circular pipes 101. A valve is fixedly sleeved at the end of the air outlet pipe 106. A straight pipe 107 is fixedly communicated with one side of the air outlet pipe 106. A piston rod 108 slides through one end of the straight pipe 107. A circular plate 109 is fixedly connected to the end of the piston rod 108 located in the inner cavity of the straight pipe 107. A second spring 110 is fixedly connected to the side of the circular plate 109 facing the piston rod 108.

[0038] The air outlet pipe 106 can discharge the gas in the two semi-circular pipes 101. The valve can be externally connected to a pipeline so that the gas can be recovered and will not float around, ensuring the safety of workers. When there is no gas in the gas pipeline, the second spring 110 pushes the circular plate 109 so that the piston rod 108 closely adheres to the end of the straight pipe 107. When it is necessary to detect whether there is flowing gas in the gas pipeline, the valve of the air outlet pipe 106 is closed. When there is flowing gas in the gas pipeline, the gas flows into the straight pipe 107 and pushes the circular plate 109, so that the piston rod 108 is pushed by the circular plate 109, facilitating the worker to judge whether there is flowing gas in the gas pipeline according to the piston rod 108.

[0039] Still further, a sleeve 111 is fixedly connected to the inner wall of one of the semi-circular pipes 101. A round hole fitting the air outlet pipe 106 is opened on one side of the sleeve 111.

[0040] The sleeve 111 is annularly bent and elastic. When the two semi-circular pipes 101 approach each other to clamp the gas pipeline, the sleeve 111 will wrap the gas pipeline so that the crack of the gas pipeline is wrapped by the sleeve 111, thereby improving the plugging effect. A round hole fitting the air outlet pipe 106 is opened on one side of the sleeve 111, and a small amount of gas can pass through the round hole of the air outlet pipe 106 and enter the air outlet pipe 106, so that the worker can judge whether there is flowing gas in the gas pipeline according to the piston rod 108.

[0041] During use, before plugging the gas pipeline, the worker passes the first telescopic plate 201 and the second telescopic plate 202 through the gas pipeline at a crack far from the gas pipeline, and makes the gas pipeline located between the two semi-circular pipes 101. Then, the two positioning rods 203 on the first telescopic plate 201 and the second telescopic plate 202 are rotated in sequence to adjust the lengths of the first telescopic plate 201 and the second telescopic plate 202. Then, the two semi-circular pipes 101 are moved to the crack of the gas pipeline. Subsequently, the fixing rod 204 is rotated to be spirally connected with the second telescopic plate 202. When the first telescopic plate 201 and the second telescopic plate 202 are tightly attached to each other, a plurality of semi-circular sealing rings 102 will seal the two ends of the two semi-circular pipes 101.

[0042] At this time, the leaked gas in the gas pipeline is blocked by the semi-circular sealing ring 102. Then, the worker wears a safety mask and uses the clamp 103 to clamp the semi-circular sealing rings 102 at both ends of the two semi-circular pipes 101, so that the semi-circular sealing rings 102 are tightly attached to the outer wall of the gas pipeline. Then, the two fixing plates 104, the first telescopic plate 201 and the second telescopic plate 202 are fixed by bolts and nuts, so that the two semi-circular pipes 101 are tightly attached to the gas pipeline and the leakage point is plugged. When there is no gas flowing in the gas pipeline, the bolts and nuts on the two fixing plates 104, the first telescopic plate 201 and the second telescopic plate 202 are taken out. Then, the two clamps 103 are taken out, and the convex block 206 is completely moved into the sliding groove of the rectangular block 205 by using the clamping rod 209. Then, after rotating the fixing rod 204 so that it no longer contacts the second telescopic plate 202, the two semi-circular pipes 101 can be removed from the gas pipeline to facilitate the replacement or repair of the gas pipeline.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A gas leakage plugging device, characterized in that, Comprising: A plugging unit (100), which includes two semi-circular pipes (101) and two pairs of semi-circular sealing rings (102) respectively fixedly connected to the inner walls of the two semi-circular pipes (101). Clamps (103) that are movably sleeved on the semi-circular pipes (101) are commonly provided at both ends of the two semi-circular pipes (101). Symmetrically arranged fixing plates (104) are fixedly connected to one side of each of the two semi-circular pipes (101). A limiting rod (105) is fixedly connected to the top of one of the fixing plates (104). The end of the limiting rod (105) slidably penetrates through the other fixing plate (104). Threaded holes are formed on the opposite surfaces of the two fixing plates (104). An adjusting unit (200), which includes a first telescopic plate (201) and a second telescopic plate (202) respectively fixedly connected to one side of the two semi-circular pipes (101). Positioning rods (203) are threadedly connected to one side of each of the first telescopic plate (201) and the second telescopic plate (202). A plurality of positioning holes that fit the positioning rods (203) are formed on one side of each of the first telescopic plate (201) and the second telescopic plate (202). Threaded holes are formed on the opposite surfaces of the first telescopic plate (201) and the second telescopic plate (202). A fixing rod (204) is rotatably connected to the top of the first telescopic plate (201). The fixing rod (204) penetrates through the first telescopic plate (201) and the second telescopic plate (202) and is threadedly connected to the second telescopic plate (202).

2. The gas leakage blocking device according to claim 1, wherein: A rectangular block (205) is fixedly connected to the top of the second telescopic plate (202). The rectangular block (205) slidably penetrates through the first telescopic plate (201). A chute is formed on one side of the rectangular block (205). A convex block (206) is slidably arranged inside the chute. A first spring (207) is fixedly connected to the inner wall of the chute. One end of the first spring (207) is fixedly connected to the convex block (206).

3. The gas leakage plugging device according to claim 2, characterized in that: A limiting groove (208) is formed on the top of the rectangular block (205). A clamping rod (209) is slidably arranged on the top of the convex block (206). The clamping rod (209) is slidably arranged in the limiting groove (208).

4. A gas leakage blocking device according to claim 1, characterized in that: An air outlet pipe (106) is fixedly communicated with one side of one of the semi-circular pipes (101). A valve is fixedly sleeved on the end of the air outlet pipe (106).

5. The gas leakage blocking device according to claim 4, characterized in that: A straight pipe (107) is fixedly communicated with one side of the air outlet pipe (106). A piston rod (108) slidably penetrates through one end of the straight pipe (107). A circular plate (109) is fixedly connected to the end of the piston rod (108) located inside the straight pipe (107) lumen. A second spring (110) is fixedly connected to the side of the circular plate (109) facing the piston rod (108).

6. The gas leakage plugging device according to claim 5, characterized in that: A sleeve (111) is fixedly connected to the inner wall of one of the semi-circular pipes (101). A circular hole that fits the air outlet pipe (106) is formed on one side of the sleeve (111).

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