Connecting structure of gas pipeline and lead-in pipe
By using components such as intake connecting pipes, conical sealing rings and tightening movable cover rings in the connecting structure between gas pipelines and plastic steel introduction pipes, the problems of unstable and poor sealing of existing connecting structures are solved, and rapid docking and High sealing connection ensures the stability and convenience of the connection.
Patent Information
- Application Number
- CN202421251123.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing plastic steel introduction pipe and gas pipeline connection structure are relatively single, resulting in cumbersome and instable connection process, which affects sealing.
Using a structure including air intake connecting pipe, tapered sealing ring, tightening movable cover ring, bearing sealing ring and sealing ring, through the mutual cooperation of these components, the rapid butt and double seal between the gas pipeline and the plastic steel introduction pipe, and through the bearing The coordination between the limiting cylinder and the L-shaped limiting rod ensures the stability of the connection and is convenient to disassemble and assemble.
It realizes rapid butt and high sealing connection between gas pipelines and plastic steel introduction pipes, improves the stability and convenience of connection, prevents leakage, and facilitates transportation and storage.
Smart Images
Figure CN222297224U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas pipelines, and in particular to a connection structure between a gas pipeline and an introduction pipe. Background Art
[0002] Most gas is transmitted using dedicated gas pipelines. Gas pipes are special pipelines for transporting combustible gas. They are metal gas pipe hoses that replace traditional rubber hoses with clips. They can solve the problems of rubber hoses that are easy to fall off, easy to age, easy to be bitten by insects, and have a short service life. Plastic steel inlet pipes are pipes that introduce external natural gas lines into indoor gas pipelines. The main function of this type of pipe is to introduce gas from the main pipeline into the indoor pipeline for the convenience of users. It is usually located between the exterior wall of the house and the indoor ceiling and needs to be connected using a splicing mechanism. The existing technology has the following problems:
[0003] Because the existing plastic-steel inlet pipe splicing mechanism structure is relatively simple, the connection process between the plastic-steel inlet pipe and the gas pipeline is relatively complicated, resulting in the effect of the device connection and use is not very good, making the device connection not stable enough. Utility Model Content
[0004] The utility model provides a connection structure between a gas pipeline and an inlet pipe to solve the problems raised in the above background technology.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A connection structure between a gas pipeline and an inlet pipe comprises a plastic steel inlet pipe, a splicing pipe is fixedly connected to the front end of the plastic steel inlet pipe, a positioning mechanism is arranged at the front end of the splicing pipe, a gas pipeline is arranged at the front end of the positioning mechanism, a gas pipe clamping cabin is provided at the center of the front end of the splicing pipe, the gas pipe clamping cabin is communicated with the inner ring of the plastic steel inlet pipe, a threaded ring is fixedly installed at the front end of the splicing pipe, an air intake connecting pipe is fixedly installed on the rear side of the inner ring of the gas pipe clamping cabin, the plastic steel inlet pipe is communicated with the inner cavity of the gas pipe clamping cabin by the air intake connecting pipe, a conical sealing ring is fixedly installed on the outer wall of the air intake connecting pipe, an annular bearing groove 1 is provided on the outer wall of the splicing pipe, and a bearing 1 is arranged inside the annular bearing groove 1.
[0007] A further improvement of the technical solution of the utility model is that: the positioning mechanism includes a tightening movable cover ring, a threaded wall is opened on the rear side of the inner ring of the tightening movable cover ring, a bearing sealing ring is fixedly installed on the front side of the inner ring of the tightening movable cover ring, a sealing ring is fixedly installed on the front side of the inner ring of the bearing sealing ring, the tightening movable cover ring is threadedly connected to the outer wall of the threaded ring by the threaded wall, and after the threaded connection, the threaded ring is located between the inner ring of the tightening movable cover ring and the bearing sealing ring.
[0008] A further improvement of the technical solution of the utility model is that: the outer wall of the tightening movable cover ring is provided with an annular bearing groove 2, the interior of the annular bearing groove 2 is provided with a bearing 2, the top of the bearing 2 is fixedly installed with a fixed vertical rod, the top of the fixed vertical rod is fixedly installed with a limiting cylinder, and the rear end of the limiting cylinder is provided with an insertion hole that penetrates into the inner cavity.
[0009] A further improvement of the technical solution of the utility model is that an L-shaped limit rod is fixedly installed on the top of the bearing 1, and the front end of the horizontal part of the L-shaped limit rod passes through the insertion hole to the inner cavity of the limit cylinder and is fixedly installed with an anti-slip disk.
[0010] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0011] 1. The utility model provides a connection structure between a gas pipeline and an inlet pipe. Through the cooperation between the air intake connecting pipe, the conical sealing ring, the tightening movable cover ring, the bearing sealing ring and the sealing ring, the gas pipeline and the plastic steel inlet pipe can be quickly connected by using a splicing mechanism. At the same time, the inner and outer walls of the gas pipeline can be sealed to improve the sealing performance.
[0012] 2. The utility model provides a connection structure between a gas pipeline and an inlet pipe. Through the cooperation among bearing 1, bearing 2, a limit cylinder, an L-shaped limit rod and an anti-slip disk, when the tightening movable cover ring and the threaded ring are rotated and disassembled, the L-shaped limit rod slides in the limit cylinder and cooperates with the anti-slip disk for stable limiting, thereby preventing the tightening movable cover ring from being separated from the splicing pipe, and facilitating transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is an overall schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a cross-sectional schematic diagram of the plastic steel introduction pipe and the spliced pipe of the structure of the utility model;
[0015] Figure 3 It is a cross-sectional schematic diagram of the positioning mechanism of the utility model structure;
[0016] Figure 4 It is a schematic diagram of the second cross section of the bearing structure of the utility model;
[0017] Figure 5 It is a cross-sectional schematic diagram of the connection between the L-shaped limiting plug rod and the limiting cylinder of the utility model structure.
[0018] In the figure: 1. Plastic steel inlet pipe; 2. Spliced pipe; 21. Gas pipe clamping compartment; 22. Threaded ring; 23. Air intake connecting pipe; 24. Conical sealing ring; 25. Annular bearing groove one; 26. Bearing one; 261. L-shaped limit rod; 262. Anti-slip disc; 3. Positioning mechanism; 31. Tightening movable cover ring; 32. Threaded wall; 33. Bearing sealing ring; 34. Sealing ring; 35. Annular bearing groove two; 36. Bearing two; 361. Fixed pole; 362. Limit cylinder; 363. Insertion hole; 4. Gas pipeline. DETAILED DESCRIPTION
[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0020] like Figure 1 , Figure 2 As shown, the utility model provides a connection structure between a gas pipeline and an inlet pipe, comprising a plastic steel inlet pipe 1, a splicing pipe 2 is fixedly connected to the front end of the plastic steel inlet pipe 1, a positioning mechanism 3 is arranged at the front end of the splicing pipe 2, a gas pipeline 4 is arranged at the front end of the positioning mechanism 3, a gas pipe clamping cabin 21 is opened at the center of the front end of the splicing pipe 2, the gas pipe clamping cabin 21 is connected with the inner circle of the plastic steel inlet pipe 1, a threaded ring 22 is fixedly installed at the front end of the splicing pipe 2, an air intake connecting pipe 23 is fixedly installed on the rear side of the inner circle of the gas pipe clamping cabin 21, the plastic steel inlet pipe 1 is connected with the inner cavity of the gas pipe clamping cabin 21 by the air intake connecting pipe 23, a conical sealing ring 24 is fixedly installed on the outer wall of the air intake connecting pipe 23, an annular bearing groove 25 is opened on the outer wall of the splicing pipe 2, and a bearing 26 is arranged inside the annular bearing groove 25;
[0021] When the gas pipeline 4 moves into the gas pipe clamping compartment 21 opened inside the splicing pipe 2 following the movement of the tightened movable cover ring 31, the conical sealing ring 24 on the outer wall of the air intake connecting pipe 23 will be clamped into the inner ring of the gas pipeline 4 by the inclined surface, thereby performing a secondary seal on the gas pipeline 4, realizing a double seal of the inner and outer walls to prevent leakage, and the gas in the gas pipeline 4 can directly enter the inner cavity of the plastic steel introduction pipe 1 through the air intake connecting pipe 23
[0022] like Figure 3As shown, the positioning mechanism 3 includes a tightening movable cover ring 31, a threaded wall 32 is provided at the rear side of the inner ring of the tightening movable cover ring 31, a bearing sealing ring 33 is fixedly installed at the front side of the inner ring of the tightening movable cover ring 31, and a sealing ring 34 is fixedly installed at the front side of the inner ring of the bearing sealing ring 33. The tightening movable cover ring 31 is threadedly connected with the outer wall of the threaded ring 22 by the threaded wall 32, and after the threaded connection, the threaded ring 22 is located between the inner ring of the tightening movable cover ring 31 and the bearing sealing ring 33, and an annular bearing groove 25 is provided on the outer wall of the tightening movable cover ring 31, and a bearing 2 36 is arranged inside the annular bearing groove 25;
[0023] When it is necessary to splice and combine the gas pipeline 4 and the plastic-steel inlet pipe 1, first pass the gas pipeline 4 through the bearing sealing ring 33 of the inner ring of the tightening movable cover ring 31, and use the sealing ring 34 to firmly squeeze the outer wall of the gas pipeline 4 to seal and fix it, then rotate the entire tightening movable cover ring 31 to use the threaded connection between the threaded wall 32 and the threaded ring 22 to make the entire tightening movable cover ring 31 rotatably installed on the front end of the splicing tube 2, and when rotating the tightening movable cover ring 31, the gas pipeline 4 can use the rotation of the bearing sealing ring 33 to keep the position unchanged.
[0024] like Figure 4 , Figure 5 As shown, a fixed vertical rod 361 is fixedly installed on the top of the bearing 2 36, a limiting cylinder 362 is fixedly installed on the top of the fixed vertical rod 361, and an insertion hole 363 penetrating to the inner cavity is opened at the rear end of the limiting cylinder 362, and an L-shaped limiting plug rod 261 is fixedly installed on the top of the bearing 1 26, and the front end of the horizontal part of the L-shaped limiting plug rod 261 penetrates the insertion hole 363 to the inner cavity of the limiting cylinder 362 and is fixedly installed with an anti-slip disk 262;
[0025] When the tightening movable cover ring 31 rotates, the limiting cylinder 362 on the fixed vertical rod 361 at the top of the bearing 2 36 utilizes the fixation of the bearing 2 36 and the annular bearing groove 2 35 to maintain the unchanged position. The L-shaped limiting plug 261 at the top of the bearing 1 26 utilizes the connection between the bearing 1 26 and the annular bearing groove 1 25 to also maintain the inconvenience of the position. Therefore, when the tightening movable cover ring 31 rotates and moves back and forth, the limiting cylinder 362 can slide back and forth at the level of the L-shaped limiting plug 261, and the limiting cylinder 362 is limited by the anti-slip disk 262 whose diameter is larger than the insertion hole 363, so as to prevent the tightening movable cover ring 31 from falling off and being lost, and facilitate transportation.
[0026] The working principle of the connection structure between the gas pipeline and the inlet pipe will be described in detail below.
[0027] like Figure 1-5As shown, when the gas pipeline 4 needs to be spliced and combined with the plastic steel inlet pipe 1, first, the gas pipeline 4 is passed through the bearing sealing ring 33 of the inner ring of the tightening movable cover ring 31, and the outer wall of the gas pipeline 4 is firmly squeezed by the sealing ring 34 to seal and fix it, and then the overall tightening movable cover ring 31 is rotated to make use of the threaded connection between the threaded wall 32 and the threaded ring 22 to make the overall tightening movable cover ring 31 rotatably installed on the front end of the splicing pipe 2, and at this time, the gas pipeline 4 follows the movement of the tightening movable cover ring 31 to move into the gas pipe clamping compartment 21 opened inside the splicing pipe 2, and finally the conical sealing ring 24 on the outer wall of the intake connecting pipe 23 can be clamped into the inner ring of the gas pipeline 4 by the inclined surface, so as to perform secondary sealing on the gas pipeline 4, realize double sealing of the inner and outer walls, and prevent The gas in the gas pipeline 4 can directly enter the inner cavity of the plastic steel inlet pipe 1 through the air intake connecting pipe 23. At the same time, when the movable cover ring 31 is tightened, the limiting cylinder 362 on the fixed vertical rod 361 at the top of the bearing 2 36 is fixed by the bearing 2 36 and the annular bearing groove 2 35 to keep the position unchanged. The L-shaped limiting plug 261 at the top of the bearing 1 26 is connected with the annular bearing groove 1 25 to also keep the position unchanged, so that when the movable cover ring 31 is rotated and moved back and forth, the limiting cylinder 362 can slide back and forth at the level of the L-shaped limiting plug 261, and the anti-falling disc 262 with a diameter larger than the insertion hole 363 is used to limit the limiting cylinder 362 to prevent the movable cover ring 31 from falling off, which is convenient for storage.
[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can 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 connection structure between a gas pipeline and an inlet pipe, comprising a plastic steel inlet pipe (1), characterized in that: The front end of the plastic steel inlet pipe (1) is fixedly connected to a splicing pipe (2), the front end of the splicing pipe (2) is provided with a positioning mechanism (3), the front end of the positioning mechanism (3) is provided with a gas pipeline (4), a gas pipe clamping cabin (21) is provided at the center of the front end of the splicing pipe (2), the gas pipe clamping cabin (21) is connected with the inner ring of the plastic steel inlet pipe (1), a threaded ring (22) is fixedly installed at the front end of the splicing pipe (2), an air intake connecting pipe (23) is fixedly installed on the rear side of the inner ring of the gas pipe clamping cabin (21), the plastic steel inlet pipe (1) and the inner cavity of the gas pipe clamping cabin (21) are connected with each other by the air intake connecting pipe (23), a conical sealing ring (24) is fixedly installed on the outer wall of the air intake connecting pipe (23), an annular bearing groove (25) is provided on the outer wall of the splicing pipe (2), and a bearing (26) is provided inside the annular bearing groove (25).
2. A connection structure between a gas pipeline and an inlet pipe according to claim 1, characterized in that: The positioning mechanism (3) includes a tightening movable cover ring (31), a threaded wall (32) is provided on the rear side of the inner ring of the tightening movable cover ring (31), a bearing sealing ring (33) is fixedly installed on the front side of the inner ring of the tightening movable cover ring (31), and a sealing ring (34) is fixedly installed on the front side of the inner ring of the bearing sealing ring (33), the tightening movable cover ring (31) is threadedly connected to the outer wall of the threaded ring (22) by using the threaded wall (32), and after the threaded connection, the threaded ring (22) is located between the inner ring of the tightening movable cover ring (31) and the bearing sealing ring (33).
3. A connection structure between a gas pipeline and an inlet pipe according to claim 2, characterized in that: The outer wall of the tightening movable cover ring (31) is provided with an annular bearing groove 2 (35), and a bearing 2 (36) is arranged inside the annular bearing groove 2 (35). A fixed vertical rod (361) is fixedly installed on the top of the bearing 2 (36), and a limiting cylinder (362) is fixedly installed on the top of the fixed vertical rod (361). The rear end of the limiting cylinder (362) is provided with an insertion hole (363) that penetrates into the inner cavity.
4. A connection structure between a gas pipeline and an inlet pipe according to claim 3, characterized in that: An L-shaped limiting rod (261) is fixedly installed on the top of the bearing 1 (26), and the front end of the L-shaped limiting rod (261) at the horizontal position passes through the insertion hole (363) to the inner cavity of the limiting cylinder (362) and is fixedly installed with an anti-slip disk (262).