Plugging device for municipal gas pipeline

Abstract

The utility model provides a plugging device for a municipal gas pipeline, which relates to the technical field of municipal gas pipelines and comprises a first clamping ring and a second clamping ring. The connecting device is arranged on the surfaces of the first clamping ring and the second clamping ring to realize quick connection between the first clamping ring and the second clamping ring; the sealing device is arranged on the surface of the first clamping ring and the surface of the second clamping ring to seal the pipeline, the connecting device comprises two supporting blocks, the supporting blocks are fixedly connected to the surface of the first clamping ring, the inner walls of the supporting blocks are fixedly connected with fixing plates, the inner walls of the supporting blocks are fixedly connected with two limiting frames, and the fixing plates are fixedly connected to the inner walls of the limiting frames. The inner wall of the limiting frame is slidably connected with two clamping blocks. According to the gas pipeline plugging device, by arranging the connecting device, the connecting and fixing effect between the first clamping ring and the second clamping ring is improved, the labor amount of workers for plugging the gas pipeline is reduced, the first clamping ring and the second clamping ring can be conveniently and rapidly separated, and the working effect of the plugging device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal gas pipelines, in particular to a plugging device for municipal gas pipelines. Background Art

[0002] Municipal gas facilities refer to the pipelines and equipment from the gate station to the user's riser. Gas is a general term for gaseous fuels that burn and release heat for use by residents and industrial enterprises. During the construction process, the gas pipeline needs to be sealed to prevent gas leakage and safety accidents.

[0003] The existing gas pipeline is generally blocked by two clamping rings, and then the two clamping rings are fixed to the gas pipeline by bolts and nuts. Although this method can fix the blocking device to the gas pipeline, the bolts and nuts need to be fixed with tools such as wrenches, which increases the workload of the staff, is not convenient for quick connection and fixing between the two clamping rings, and reduces the practicality of the blocking device. Utility Model Content

[0004] The utility model provides a plugging device for a municipal gas pipeline, which solves the problems raised by the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] The embodiment of the utility model provides a plugging device for a municipal gas pipeline, comprising:

[0007] a first clasp and a second clasp;

[0008] A connecting device, arranged on the surfaces of the first clamp ring and the second clamp ring, to achieve a quick connection between the first clamp ring and the second clamp ring;

[0009] The sealing device is arranged on the surfaces of the first clamp ring and the second clamp ring to achieve sealing of the pipeline.

[0010] Through the above technical solution, by providing a connecting device, the connection between the first clamp ring and the second clamp ring is facilitated, thereby reducing the workload of the staff, and by providing a sealing device, the gas pipeline is easily sealed.

[0011] Furthermore, the connecting device includes two supporting blocks, the supporting blocks are fixedly connected to the surface of the first retaining ring, the inner wall of the supporting block is fixedly connected to a fixing plate, the inner wall of the supporting block is fixedly connected to two limiting frames, the inner wall of the limiting frame is slidably connected to two clamping blocks, the sides of the clamping blocks and the fixing plate close to each other are fixedly connected to a spring, the surface of the second retaining ring is provided with two I-grooves, the inner wall of the I-groove on the surface of the second retaining ring is provided with a clamping groove, and the sizes of the clamping blocks and the clamping grooves are matched.

[0012] Through the above technical solution, the spring and the clamping block cooperate with each other to facilitate quick connection and fixation between the first clamping ring and the second clamping ring.

[0013] Furthermore, a ball is rotatably connected to the surface of the block, and the ball is a spherical structure.

[0014] Through the above technical solution, the ball reduces the friction force on the block when it slides.

[0015] Furthermore, a draw rope is fixedly connected to one side of the two clamping blocks that are close to each other, and a draw ring is fixedly connected to the surface of the draw rope.

[0016] The above technical solution makes it easy to pull the clamping ring, thereby facilitating the separation of the first clamping ring and the second clamping ring.

[0017] Furthermore, two magnet blocks are fixedly connected to the surface of the first clamping ring, and the pull ring is an iron ring.

[0018] Through the above technical solution, the pull ring is fixed to reduce the shaking of the pull ring.

[0019] Furthermore, four positioning rods are fixedly connected to the surface of the first clamping ring, and a circular hole is opened on the surface of the second clamping ring. The sizes of the positioning rods and the circular holes on the surface of the second clamping ring are matched.

[0020] Through the above technical solution, by inserting the positioning rod into the circular hole of the second clamping ring, it is convenient to accurately connect the first clamping ring and the second clamping ring.

[0021] Furthermore, the sealing device includes four arc grooves, which are arranged in groups of two. The four arc grooves are respectively opened on the inner walls of the first clamping ring and the second clamping ring. A rubber strip is placed on the inner wall of the arc groove, and a sealing gasket is fixedly connected to the surface of the rubber strip. The sizes of the rubber strip and the arc groove are matched.

[0022] Through the above technical solution, the sealing gasket can effectively improve the sealing effect of the sealing device on the gas pipeline.

[0023] Furthermore, a plurality of sharp protrusions are fixedly connected to the inner wall of the arc-shaped groove, and barbs are fixedly connected to the surface of the sharp protrusions.

[0024] The above technical solution makes it convenient to regularly replace the sealing gasket.

[0025] The above solution of the utility model includes at least the following beneficial effects:

[0026] 1. The utility model improves the connection and fixing effect between the first clamp ring and the second clamp ring by setting a connecting device, reduces the workload of workers when sealing the gas pipeline, facilitates the rapid separation between the first clamp ring and the second clamp ring, and further improves the working effect of the sealing device.

[0027] 2. The utility model improves the sealing effect of the gas pipeline by arranging a sealing device, facilitates the replacement of the sealing gasket, and further improves the practicability of the sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0030] Figure 3 This utility model Figure 2 A schematic diagram of the structure at A;

[0031] Figure 4 It is a structural schematic diagram of the support block in the utility model;

[0032] Figure 5 It is a schematic diagram of the split structure of the utility model;

[0033] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point B.

[0034] Description of reference numerals:

[0035] 1. First snap ring; 2. Second snap ring; 3. Connecting device; 301. Support block; 302. Limit frame; 303. Block; 304. Fixing plate; 305. Spring; 306. Ball; 307. Pull rope; 308. Pull ring; 309. Magnet block; 310. Positioning rod; 311. I-shaped groove; 4. Sealing device; 41. Arc groove; 42. Sharp protrusion; 43. Barb; 44. Rubber strip; 45. Sealing gasket. DETAILED DESCRIPTION

[0036] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0037] like Figures 1 to 6As shown, an embodiment of the utility model provides a plugging device for a municipal gas pipeline, comprising: a first clamp ring 1 and a second clamp ring 2; a connecting device 3, which is arranged on the surface of the first clamp ring 1 and the second clamp ring 2 to achieve a quick connection between the first clamp ring 1 and the second clamp ring 2; and a sealing device 4, which is arranged on the surface of the first clamp ring 1 and the second clamp ring 2 to achieve sealing of the pipeline. By arranging the connecting device 3, it is convenient to fix the first clamp ring 1 and the second clamp ring 2, and by arranging the sealing device 4, it is convenient to seal the gas pipeline.

[0038] like Figures 1 to 5 As shown, the connecting device 3 includes two support blocks 301, which are fixedly connected to the surface of the first clamping ring 1, and the inner wall of the support block 301 is fixedly connected with a fixing plate 304, and the inner wall of the support block 301 is fixedly connected with two limit frames 302, and the inner wall of the limit frame 302 is slidably connected with two clamping blocks 303, and the side of the clamping block 303 and the fixing plate 304 close to each other is fixedly connected with a spring 305, and the surface of the second clamping ring 2 is provided with two I-shaped grooves 311, and the inner wall of the I-shaped groove 311 on the surface of the second clamping ring 2 is provided with a clamping groove, and the size of the clamping block 303 and the clamping groove is adapted, and the first clamping ring 1 and the second clamping ring 2 are placed on both sides of the gas pipeline. At this time, the first snap ring 1 and the second snap ring 2 are pushed to approach each other, and the support block 301 is inserted into the I-shaped groove 311. When the clamping block 303 contacts the second snap ring 2, it is resisted by the second snap ring 2 and moves into the support block 301, driving the spring 305 to contract. When the support block 301 completely enters the I-shaped groove 311, the clamping block 303 is located at the clamping groove. At this time, the clamping block 303 loses the obstruction of the second snap ring 2, and resets under the action of the elastic force of the spring 305 and is inserted into the clamping groove, thereby improving the stability between the first snap ring 1 and the second snap ring 2, and then facilitating the quick connection and fixation between the first snap ring 1 and the second snap ring 2. The surface of the clamping block 303 is rotatably connected with a ball 306, which is a spherical structure. The setting of the ball 306 reduces the friction between the clamping block 303 and the limit frame 302, and facilitates the sliding work of the clamping block 303.

[0039] like Figures 1 to 5As shown, a pull rope 307 is fixedly connected to the side of the two clamping blocks 303 that is close to each other, and a pull ring 308 is fixedly connected to the surface of the pull rope 307. When the pull ring 308 is pulled, the pull ring 308 drives the pull rope 307 to move. At this time, the clamping block 303 slides and descends into the support block 301 under the action of the pull rope 307. At this time, the clamping block 303 is far away from the clamping groove in the second clamping ring 2, which facilitates the separation between the first clamping ring 1 and the second clamping ring 2. Two magnet blocks 309 are fixedly connected to the surface of the first clamping ring 1. The pull ring 308 is an iron ring. When the pull ring 308 is placed on the magnet block 309, the magnetic force of the magnet block 309 fixes the pull ring 308, thereby reducing the shaking of the pull ring 308, which causes the separation between the clamping block 303 and the second clamping ring 2. Four positioning rods 310 are fixedly connected to the surface of the first snap ring 1, and a circular hole is opened on the surface of the second snap ring 2. The sizes of the positioning rods 310 and the circular holes on the surfaces of the second snap ring 2 are adapted to each other. When the first snap ring 1 and the second snap ring 2 are in contact, the positioning rods 310 are inserted into the circular holes of the second snap ring 2, thereby avoiding deviation between the first snap ring 1 and the second snap ring 2 when connected.

[0040] In the embodiment of the utility model (working principle), when the first clamp ring 1 and the second clamp ring 2 are placed on both sides of the gas pipeline, the positioning rod 310 is first inserted into the round hole on the second clamp ring 2 to avoid the offset when the first clamp ring 1 and the second clamp ring 2 are connected. At this time, the support block 301 is inserted into the I-shaped groove 311, and the clamping block 303 is inserted into the clamping groove of the second clamp ring 2, thereby completing the connection between the first clamp ring 1 and the second clamp ring 2, and then sealing the gas pipeline. Pulling the pull rope 307 drives the clamping block 303 to retract into the support block 301, which facilitates the separation between the first clamp ring 1 and the second clamp ring 2.

[0041] like Figure 1 , Figure 5 and Figure 6 As shown, the sealing device 4 includes four arc grooves 41, and the four arc grooves 41 are arranged in groups of two. The four arc grooves 41 are respectively opened on the inner wall of the first clamp ring 1 and the second clamp ring 2. A rubber strip 44 is placed on the inner wall of the arc groove 41. A sealing gasket 45 is fixedly connected to the surface of the rubber strip 44. The size of the rubber strip 44 and the arc groove 41 are adapted. The rubber strip 44 on the sealing gasket 45 is placed in the arc groove 41. When the first clamp ring 1 and the second clamp ring 2 are connected, the sealing gasket 45 can seal the gap between the gas pipelines, thereby reducing the leakage of gas. A plurality of sharp protrusions 42 are fixedly connected to the inner wall of the arc groove 41. The surface of the sharp protrusion 42 is fixedly connected with barbs 43. When the rubber strip 44 enters the arc groove 41, it will contact the sharp protrusion 42. At this time, the sharp protrusion 42 is inserted into the rubber strip 44, which preliminarily improves the stability of the sealing gasket 45. The provision of the barbs 43 can effectively improve the friction between the sharp protrusion 42 and the rubber strip 44, further improving the stability of the sealing gasket 45.

[0042] In the embodiment of the utility model, the sealing gasket 45 is fixed by the pointed protrusion 42 and the barb 43, and the regular replacement of the sealing gasket 45 is convenient. When the first clamp ring 1 and the second clamp ring 2 block the gas pipeline, the sealing gasket 45 can reduce the gas leakage in the gas pipeline.

[0043] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plugging device for a municipal gas pipeline, characterized in that: include: A first clamping ring (1) and a second clamping ring (2); A connecting device (3) is arranged on the surface of the first clamping ring (1) and the second clamping ring (2) to achieve a quick connection between the first clamping ring (1) and the second clamping ring (2); The sealing device (4) is arranged on the surface of the first clamping ring (1) and the second clamping ring (2) to achieve sealing of the pipeline.

2. A plugging device for a municipal gas pipeline according to claim 1, characterized in that: The connecting device (3) comprises two support blocks (301), wherein the support blocks (301) are fixedly connected to the surface of the first snap ring (1), the inner wall of the support block (301) is fixedly connected to a fixing plate (304), the inner wall of the support block (301) is fixedly connected to two limit frames (302), the inner wall of the limit frame (302) is slidably connected to two clamping blocks (303), a spring (305) is fixedly connected to a surface of the clamping block (303) and the fixing plate (304) close to each other, the surface of the second snap ring (2) is provided with two I-shaped grooves (311), the inner wall of the I-shaped groove (311) on the surface of the second snap ring (2) is provided with a clamping groove, and the sizes of the clamping block (303) and the clamping groove are matched.

3. A plugging device for municipal gas pipeline according to claim 2, characterized in that: A ball (306) is rotatably connected to the surface of the clamping block (303), and the ball (306) is a spherical structure.

4. A plugging device for municipal gas pipeline according to claim 2, characterized in that: A pull rope (307) is fixedly connected to one side of the two clamping blocks (303) that is close to each other, and a pull ring (308) is fixedly connected to the surface of the pull rope (307).

5. A plugging device for municipal gas pipeline according to claim 4, characterized in that: Two magnet blocks (309) are fixedly connected to the surface of the first clamping ring (1), and the pull ring (308) is an iron ring.

6. A plugging device for municipal gas pipeline according to claim 2, characterized in that: Four positioning rods (310) are fixedly connected to the surface of the first clamping ring (1), and a circular hole is opened on the surface of the second clamping ring (2). The sizes of the positioning rods (310) and the circular holes on the surfaces of the second clamping ring (2) are matched.

7. A plugging device for municipal gas pipeline according to claim 1, characterized in that: The sealing device (4) comprises four arc-shaped grooves (41), the four arc-shaped grooves (41) are arranged in groups of two, and the four arc-shaped grooves (41) are respectively opened on the inner walls of the first clamping ring (1) and the second clamping ring (2), a rubber strip (44) is placed on the inner wall of the arc-shaped groove (41), a sealing gasket (45) is fixedly connected to the surface of the rubber strip (44), and the size of the rubber strip (44) and the arc-shaped groove (41) are matched.

8. A plugging device for municipal gas pipeline according to claim 7, characterized in that: A plurality of sharp protrusions (42) are fixedly connected to the inner wall of the arc-shaped groove (41), and barbs (43) are fixedly connected to the surface of the sharp protrusions (42).

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