Gas pipeline transmission and distribution butt joint fixing structure

Abstract

The utility model relates to the technical field of gas pipeline transmission and distribution butt joint, and discloses a gas pipeline transmission and distribution butt joint fixing structure which comprises a gas inlet connector, a gas inlet pipe arranged on the outer wall of the gas inlet connector, a convenient mechanism arranged on the outer wall of the gas inlet connector, and a sealing mechanism arranged on the inner wall of the gas inlet pipe. The convenient mechanism comprises a fixing base and a round rod, the fixing base is fixedly installed on the outer wall of the gas inlet connector, the round rod is rotatably installed on the inner wall of the fixing base, the outer wall of the round rod is sleeved with a torsional spring, and an L-shaped rod is fixedly installed on the outer wall of the round rod. The spring, the sliding groove, the limiting rod, the jacking spring and the arc groove are arranged, the jacking spring pushes the limiting rod to slide towards the other side on the inner wall of the sliding groove, the L-shaped rod is limited and fixed, and the defect that a tool is needed in a traditional threaded connection mode is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline transmission pair connection, in particular to a gas pipeline transmission pair connection fixing structure. Background Art

[0002] Gas pipeline docking is a key link in the gas pipeline installation project, which refers to the operation of connecting the pipe ends of two sections of gas pipelines according to design requirements and specifications. First, the pipeline ports need to be finely processed, such as cutting flat, removing burrs and impurities, etc., to ensure that the ports are clean, smooth and the dimensions are accurate. Then, according to the pipe diameter, material and working conditions, the appropriate docking method is selected. Common ones include welding, flange connection, threaded connection, etc. During the docking process, the coaxiality, verticality and interface gap of the pipeline must be strictly controlled, and professional tools and equipment must be used for precise alignment and fixation. After that, the quality of the weld is ensured by welding, or the threads are tightened, flange gaskets and bolts are installed and tightened evenly, etc., to complete the reliable connection of the pipeline to achieve safe, efficient and stable gas transportation.

[0003] The existing gas pipeline docking still has some shortcomings in practical applications. First of all, most of the existing docking on the market are threaded connections, but threaded connections require the use of external tools for construction, which is complicated and tedious. If the end of the tool is damaged after long-term use or the top notch of the bolt is severely worn, it will directly affect the efficiency of the disassembly and maintenance of the equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a gas pipeline transmission pair connection fixing structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas pipeline transmission pair connection and fixing structure, comprising an air inlet interface, an air inlet pipe is provided on the outer wall of the air inlet interface, a convenient mechanism is provided on the outer wall of the air inlet interface, a sealing mechanism is provided on the inner wall of the air inlet pipe, and the convenient mechanism comprises: a fixing seat, the fixing seat is fixedly mounted on the outer wall of the air inlet interface, and a round rod, the round rod is rotatably mounted on the inner wall of the fixing seat.

[0006] Preferably, the outer wall of the round rod is sleeved with a torsion spring, the outer wall of the round rod is fixedly installed with an L rod, the inner wall of the fixed seat is slidably installed with a clamping rod, the outer wall of the clamping rod is sleeved with a spring, the inner wall of the intake pipe is provided with a sliding groove, and the inner wall of the sliding groove is slidably installed with a limiting rod.

[0007] Preferably, a top spring is fixedly mounted on the inner wall of the slide groove, and an arc groove is formed on the inner wall of the air intake pipe.

[0008] Preferably, the sealing machine includes: a round-headed rod, which is slidably mounted on the inner wall of the air inlet pipe, a sealing strip fixedly mounted on the end of the round-headed rod, a return spring fixedly mounted on the outer wall of the round-headed rod, and a beveled strip fixedly mounted on the outer wall of the air inlet interface.

[0009] Preferably, one end of the torsion spring is fixedly mounted on the outer wall of the round rod, and the other end of the torsion spring is fixedly mounted on the outer wall of the fixing seat, one end of the spring is fixedly mounted on the upper surface of the fixing seat, and the other end of the spring is fixedly mounted on the outer wall of the clamping rod, one end of the top spring is fixedly mounted on the inner wall of the slide groove, and the other end of the top spring is fixedly mounted on the inner wall of the limit rod, the slide groove is provided with two groups, which are mirrored with the center line in the vertical direction of the intake pipe as the axis of symmetry, and the inner walls of the two groups of the slide grooves are slidably mounted with limit rods, and the limit rod can be displaced by setting the top spring.

[0010] Preferably, one end of the return spring is fixedly mounted on the outer wall of the round head rod, and the other end of the return spring is fixedly mounted on the outer wall of the intake pipe. The sealing strip slides on the inner wall of the intake pipe. The return spring can be set to reset the sealing strip.

[0011] Compared with the prior art, the present invention provides a gas pipeline transmission pair connection and fixing structure, which has the following beneficial effects:

[0012] 1. The gas pipeline transmission and transmission pair connection and fixing structure, in order to achieve rapid fixation of the pipeline, is provided with a fixing seat, a round rod, a torsion spring, an L rod, a clamping rod, a spring, a slide, a limit rod, a top spring, and an arc groove. The top spring pushes the limit rod to slide to the other side on the inner wall of the slide and limits and fixes the L rod. Not only is the connection more stable, but it also avoids the disadvantage of the traditional threaded connection method that requires the use of tools.

[0013] 2. The gas pipeline transmission pair connection fixed structure, in order to seal the pipeline interface, is provided with a round head rod, a sealing strip, a return spring, and an inclined strip. The round head rod is squeezed by the inclined strip to push the two sets of sealing strips closer to each other and seal the interface to prevent leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic cross-sectional view of part of the structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the A structure;

[0017] Figure 4 For this utility model Figure 2A magnified schematic diagram of the B structure.

[0018] In the figure: 1. Air intake interface; 2. Air intake pipe; 3. Convenient mechanism; 301. Fixed seat; 302. Round rod; 303. Torsion spring; 304. L rod; 305. Clamping rod; 306. Spring; 307. Slide groove; 308. Limit rod; 309. Top spring; 310. Arc groove; 4. Sealing mechanism; 401. Round head rod; 402. Sealing strip; 403. Return spring; 404. Bevel strip. DETAILED DESCRIPTION

[0019] like Figures 1-4 As shown, the utility model provides a technical solution: a gas pipeline transmission pair connection fixing structure, including an air inlet interface 1, an air inlet pipe 2 is provided on the outer wall of the air inlet interface 1, a convenient mechanism 3 is provided on the outer wall of the air inlet interface 1, and a sealing mechanism 4 is provided on the inner wall of the air inlet pipe 2.

[0020] The convenient mechanism 3 includes: a fixed seat 301, a round rod 302, a torsion spring 303, an L rod 304, a clamping rod 305, a spring 306, a slide groove 307, a limiting rod 308, a top spring 309, and an arc groove 310. The fixed seat 301 is fixedly mounted on the outer wall of the air inlet interface 1, and the round rod 302 is rotatably mounted on the inner wall of the fixed seat 301. The outer wall of the round rod 302 is sleeved with a torsion spring 303. One end of the torsion spring 303 is fixedly mounted on the outer wall of the round rod 302, and the other end of the torsion spring 303 is fixedly mounted on the outer wall of the fixed seat 301. The wall is fixedly installed with an L rod 304, the inner wall of the fixed seat 301 is slidably installed with a card rod 305, the outer wall of the card rod 305 is sleeved with a spring 306, one end of the spring 306 is fixedly installed on the upper surface of the fixed seat 301, and the other end of the spring 306 is fixedly installed on the outer wall of the card rod 305, the inner wall of the intake pipe 2 is provided with a slide groove 307, the slide groove 307 is provided with two groups, and the center line of the intake pipe 2 in the vertical direction is mirrored as the axis of symmetry, and the inner walls of the two groups of slide grooves 307 are slidably installed with a limit rod 308, and the inner wall of the slide groove 307 is slidably installed with a The inner wall of the limit rod 308 and the slide groove 307 is fixedly installed with a top spring 309, one end of the top spring 309 is fixedly installed on the inner wall of the slide groove 307, and the other end of the top spring 309 is fixedly installed on the inner wall of the limit rod 308. The inner wall of the intake pipe 2 is provided with an arc groove 310. The intake pipe 2 is aligned with the intake interface 1. At this time, the card rod 305 is pulled to release the card rod 305 from limiting the round rod 302. At this time, the torsion spring 303 will make the round rod 302 rotate and drive the L rod 304 to rotate and make the end of the L rod 304 embedded in the inner wall of the arc groove 310. When the L rod 304 When the locking rod 305 is embedded in the inner wall of the arc groove 310, the spring 306 will push the locking rod 305 to slide downward on the inner wall of the fixing seat 301 and limit the round rod 302. At this time, the intake pipe 2 is rotated so that the inclined surface of the limiting rod 308 is squeezed by the L rod 304 and pushed to slide to one side on the inner wall of the slide groove 307. When the intake pipe 2 is rotated to a certain extent, the top spring 309 will push the limiting rod 308 to slide to the other side on the inner wall of the slide groove 307 and limit and fix the L rod 304, avoiding the disadvantage of the traditional threaded connection method that requires the use of tools.

[0021] The above-mentioned sealing mechanism 4 includes: a round-headed rod 401, a sealing strip 402, a return spring 403, and a beveled strip 404. The round-headed rod 401 is slidably mounted on the inner wall of the intake pipe 2, and the end of the round-headed rod 401 is fixedly mounted with a sealing strip 402. The sealing strip 402 slides on the inner wall of the intake pipe 2, and the outer wall of the round-headed rod 401 is fixedly mounted with a return spring 403. One end of the return spring 403 is fixedly mounted on the outer wall of the round-headed rod 401, and the other end of the return spring 403 is fixedly mounted on the outer wall of the intake pipe 2. The outer wall of the intake interface 1 is fixedly mounted with a beveled strip 404. When the intake pipe 2 rotates, the round-headed rod 401 is squeezed by the beveled strip 404 to push the two sets of sealing strips 402 closer to each other and seal the interface to prevent air leakage from the interface. When the intake pipe 2 is reversed, the beveled strip 404 will release the squeezing of the round-headed rod 401. At this time, the return spring 403 will push the round-headed rod 401 to pull the sealing strips 402 away from each other to release the seal.

[0022] Working principle: Align the air intake pipe 2 with the air intake interface 1, then pull the clamping rod 305 to release the clamping rod 305 from limiting the round rod 302, then the torsion spring 303 will rotate the round rod 302 and drive the L rod 304 to rotate so that the end of the L rod 304 is embedded in the inner wall of the arc groove 310, when the L rod 304 is embedded in the inner wall of the arc groove 310, the clamping rod 305 is loosened, then the spring 306 will push the clamping rod 305 to slide downward on the inner wall of the fixing seat 301 and limit the round rod 302, then rotate the air intake pipe 2 so that the inclined surface of the limiting rod 308 is squeezed by the L rod 304 and pushed to one side on the inner wall of the slide groove 307. Sliding, when the intake pipe 2 rotates to a certain extent, the top spring 309 will push the limit rod 308 to slide to the other side on the inner wall of the slide groove 307 and limit and fix the L rod 304, avoiding the disadvantage of the traditional threaded connection method that requires the use of tools. While the intake pipe 2 rotates, the round head rod 401 is squeezed by the inclined surface 404 to push the two sets of sealing strips 402 closer to each other and seal the interface to prevent air leakage from the interface. When the intake pipe 2 is reversed, the inclined surface 404 will release the squeezing of the round head rod 401. At this time, the return spring 403 will push the round head rod 401 to pull the sealing strips 402 away from each other to release the seal.

[0023] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A gas pipeline transmission pair connection fixing structure, comprising an air inlet interface (1), characterized in that: The outer wall of the air intake interface (1) is provided with an air intake pipe (2), the outer wall of the air intake interface (1) is provided with a convenient mechanism (3), the inner wall of the air intake pipe (2) is provided with a sealing mechanism (4), and the convenient mechanism (3) comprises: A fixing seat (301), wherein the fixing seat (301) is fixedly mounted on the outer wall of the air inlet interface (1); A round rod (302) is rotatably mounted on the inner wall of the fixing seat (301).

2. A gas pipeline transmission pair connection and fixing structure according to claim 1, characterized in that: The outer wall of the round rod (302) is sleeved with a torsion spring (303), the outer wall of the round rod (302) is fixedly mounted with an L rod (304), the inner wall of the fixing seat (301) is slidably mounted with a clamping rod (305), the outer wall of the clamping rod (305) is sleeved with a spring (306), the inner wall of the air intake pipe (2) is provided with a sliding groove (307), and the inner wall of the sliding groove (307) is slidably mounted with a limiting rod (308).

3. A gas pipeline transmission pair connection and fixing structure according to claim 2, characterized in that: A top spring (309) is fixedly mounted on the inner wall of the slide groove (307), and an arc groove (310) is formed on the inner wall of the air intake pipe (2).

4. A gas pipeline transmission pair connection and fixing structure according to claim 3, characterized in that: The sealing mechanism (4) comprises: a round-headed rod (401), the round-headed rod (401) being slidably mounted on the inner wall of the air intake pipe (2), a sealing strip (402) being fixedly mounted on the end of the round-headed rod (401), a return spring (403) being fixedly mounted on the outer wall of the round-headed rod (401), and an inclined strip (404) being fixedly mounted on the outer wall of the air intake interface (1).

5. A gas pipeline transmission pair connection and fixing structure according to claim 4, characterized in that: One end of the torsion spring (303) is fixedly mounted on the outer wall of the round rod (302), and the other end of the torsion spring (303) is fixedly mounted on the outer wall of the fixing seat (301). One end of the spring (306) is fixedly mounted on the upper surface of the fixing seat (301), and the other end of the spring (306) is fixedly mounted on the outer wall of the clamping rod (305). One end of the top spring (309) is fixedly mounted on the inner wall of the slide groove (307), and the other end of the top spring (309) is fixedly mounted on the inner wall of the limit rod (308). The slide groove (307) is provided with two groups, which are mirror-imaged with the center line of the intake pipe (2) in the vertical direction as the axis of symmetry, and the limit rod (308) is slidably mounted on the inner walls of the two groups of slide grooves (307).

6. A gas pipeline transmission pair connection and fixing structure according to claim 5, characterized in that: One end of the return spring (403) is fixedly mounted on the outer wall of the round-head rod (401), and the other end of the return spring (403) is fixedly mounted on the outer wall of the intake pipe (2), and the sealing strip (402) slides on the inner wall of the intake pipe (2).

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