Gas pipeline butt joint

Abstract

The utility model discloses a fuel gas pipeline butt joint which comprises a first pipeline, a first connecting piece is fixedly installed on the outer side of the first pipeline, a metal handle ring is connected to the front end of the first connecting piece in a threaded mode, a metal sealing ring is rotatably installed in the metal handle ring, an adaptive through hole is formed in the rear side of the metal sealing ring, and the adaptive through hole is communicated with the first connecting piece. A second pipeline is fixedly installed in the adaptive through hole, a metal conical head is fixedly installed at the front end of the second pipeline, the metal conical head is located in the metal sealing ring and matched with the first pipeline, an anti-skid sleeve is arranged on the outer side of the first connecting piece in a sleeving mode, the anti-skid sleeve facilitates hand holding, and an arc-shaped face is arranged at the front end of the first pipeline. And the arc-shaped surface can be conveniently extruded on the outer side of the metal conical head. The device improves safety and reliability through multiple sealing mechanisms, integrates an anti-skid sleeve and anti-skid grains, simplifies handheld and rotating operations, and is simple and convenient to disassemble and maintain due to threaded connection and rotatable parts.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline connection technology, and in particular to a gas pipeline connection. Background Technology

[0002] With the promotion and popularization of smart homes and smart home systems, a convenient gas pipe connection connector has been disclosed, including a connector body and a fixing ring. A threaded ring is threaded to the side of the fixing ring away from the connector body. A second vent pipe is opened inside the threaded ring, and a filter element is installed inside the second vent pipe. Filter plates are installed at both ends of the filter element, and vent holes are provided inside the filter element. A retaining plate is provided at the end of the threaded ring away from the fixing ring, and a sealing tube is threaded to the inside of the retaining plate. A third vent pipe is opened inside the sealing tube, and a limiting block is installed inside the third vent pipe. One side of the limiting block is in contact with the filter plate. The connector body of this application is externally connected to the other side of the gas pipe through a first external thread. The connector body, fixing ring, threaded ring, sealing tube, and filter element are interconnected, allowing gas to pass through. The filter element filters impurities in the gas. The first and second sealing rings increase the sealing between the threaded ring and the fixing ring, increasing safety.

[0003] Publication No. CN222543253U discloses a convenient gas pipeline connection joint, including a first pair of joints, with a gas pipe body embedded in the middle of the first pair of joints; a connecting pipe is fixedly connected to one side of the first pair of joints, and a third sealing plate is tightly fitted inside the connecting pipe. In use, this utility model consists of a gas pipe body, a first pair of joints, a second pair of joints, multiple sealing plates, and connecting pipes. The gas pipe body and the first pair of joints are nested together to ensure a stable connection. The first and second pairs of joints are connected by an overlapping mechanism, which not only facilitates installation but also enhances the sealing performance of the joint. The design of the connecting pipes and the built-in connecting pipes allows for smooth connection of the gas pipeline, reducing the risk of gas leakage. The tight fit of multiple sealing plates effectively prevents gas leakage and improves safety. The embedded threaded rod and adjusting gear valve make the connection process more flexible and adjustable.

[0004] Existing pipeline joint seals use a single sealing method, resulting in poor sealing performance. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a gas pipeline connection joint. Existing pipeline connection joints use a single sealing method, resulting in poor sealing performance.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a gas pipeline docking joint, including a first pipeline, a first connector fixedly installed on the outer side of the first pipeline, a metal handle ring threadedly connected to the front end of the first connector, a metal sealing ring rotatably installed inside the metal handle ring, an adaptation through hole opened on the rear side of the metal sealing ring, a second pipeline fixedly installed in the adaptation through hole, a metal cone fixedly installed at the front end of the second pipeline, the metal cone being located inside the metal sealing ring and cooperating with the first pipeline.

[0007] Preferably, the outer side of the first connector is fitted with an anti-slip sleeve, which makes it easy to hold, and the front end of the first pipeline is provided with an arc-shaped surface, which makes it easy to press against the outside of the metal cone.

[0008] Preferably, the front end of the first connector is provided with an external thread, and the inner side of the metal handle ring is provided with an internal thread. The internal thread and the external thread are threadedly connected, which can fix the metal handle ring on the outside.

[0009] Preferably, a rubber sealing ring is fixedly provided on the inner side of the metal sealing ring, and the outer side of the first pipeline is sealed with the inner ring of the rubber sealing ring. The rubber sealing ring is used to seal the first pipeline and the metal sealing ring.

[0010] Preferably, a sliding sealing groove is provided on the inner side of the metal handle ring, and a sliding sealing ring is fixedly installed on the outer side of the metal sealing ring. The sliding sealing ring is slidably connected to the inner wall of the sliding sealing groove to ensure relative rotation between the metal sealing ring and the metal handle ring.

[0011] Preferably, the front end of the first connector is provided with a sealing groove, the sealing groove is located outside the first pipeline, the metal sealing ring is slidably connected to the inner wall of the sealing groove, and a secondary seal is formed between the metal sealing ring and the sealing groove.

[0012] Preferably, the outer side of the metal handle ring is provided with anti-slip texture to facilitate rotation of the metal handle ring.

[0013] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0014] 1. Enhanced safety and reliability through multiple sealing mechanisms: A redundant barrier is created through a four-stage sealing design (metal cone and curved surface forming a metal-metal contact seal; rubber sealing ring providing a resilient secondary seal; sealing groove achieving a sliding auxiliary seal; threaded connection curing to form the final seal). This layered approach significantly reduces the probability of leakage, making it particularly suitable for the transportation of flammable gases.

[0015] 2. Integrated anti-slip sleeve and anti-slip texture simplify hand and rotation operations; at the same time, the sliding sealing ring and sliding sealing groove allow the metal sealing ring to rotate relative to each other, reducing installation torque. Users can complete the connection without additional tools (saving up to 30% of time in pipeline repairs), and the curved surface design also compensates for slight alignment errors, improving adaptability.

[0016] 3. Highly integrated components (such as the metal handle ring which serves both connection and rotation functions) save space and facilitate deployment in dense pipeline networks. The separate design (the first and second pipelines can rotate independently) also reduces pipeline stress and extends the overall system lifespan.

[0017] 4. Threaded connections and rotatable parts facilitate disassembly and maintenance (e.g., replacing rubber sealing rings does not require cutting the pipeline). Compared to welded joints, this design reduces installation costs by more than 20% and is reusable, aligning with sustainable engineering principles.

[0018] 5. The combination of the metal cone and the curved surface adapts to thermal expansion and contraction or vibration, while the sliding sealing groove ensures dynamic sealing. It performs stably under gas pressure fluctuations (commonly 0-0.3MPa), making it suitable for scenarios such as urban gas distribution.

[0019] This device features multiple sealing mechanisms to enhance safety and reliability, integrated anti-slip sleeves and anti-slip textures to simplify handheld and rotating operations, and threaded connections and rotatable parts to facilitate disassembly and maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 for Figure 1 Cross-sectional view;

[0022] Figure 3 This is an exploded view of the present invention;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure viewed from below;

[0024] The components are: 1. First pipeline; 11. First connector; 12. Anti-slip sleeve; 13. External thread; 14. Sealing groove; 15. Arc-shaped surface; 2. Second pipeline; 21. Metal sealing ring; 22. Metal handle ring; 23. Rubber sealing ring; 24. Metal cone; 25. Anti-slip texture; 26. Sliding sealing groove; 27. Internal thread; 28. Sliding sealing ring; 29. ​​Adaptive through hole. Detailed Implementation

[0025] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0026] like Figures 1-4 As shown, this utility model provides a gas pipeline connection connector, including a first pipeline 1. A first connector 11 is fixedly installed on the outer side of the first pipeline 1. A metal handle ring 22 is threadedly connected to the front end of the first connector 11. A metal sealing ring 21 is rotatably installed inside the metal handle ring 22. An adaptation through hole 29 is opened on the rear side of the metal sealing ring 21. A second pipeline 2 is fixedly installed in the adaptation through hole 29. A metal cone 24 is fixedly installed at the front end of the second pipeline 2. The metal cone 24 is located inside the metal sealing ring 21 and cooperates with the first pipeline 1.

[0027] In this embodiment, the outer side of the first connector 11 is fitted with an anti-slip sleeve 12, which makes it easy to hold. The front end of the first pipeline 1 is provided with an arc-shaped surface 15, which makes it easy to press 1 against the outside of the metal cone head 24.

[0028] In this embodiment, the front end of the first connector 11 is provided with an external thread 13, and the inner side of the metal handle ring 22 is provided with an internal thread 27. The internal thread 27 is threadedly connected to the external thread 13, which can fix the metal handle ring 22 on the outside of 11.

[0029] In this embodiment, a rubber sealing ring 23 is fixedly provided on the inner side of the metal sealing ring 21, and the outer side of the first pipeline 1 is sealed with the inner ring of the rubber sealing ring 23. The rubber sealing ring 23 is used to seal the first pipeline 1 and the metal sealing ring 21.

[0030] In this embodiment, a sliding sealing groove 26 is provided on the inner side of the metal handle ring 22, and a sliding sealing ring 28 is fixedly installed on the outer side of the metal sealing ring 21. The sliding sealing ring 28 is slidably connected to the inner wall of the sliding sealing groove 26 to ensure relative rotation between the metal sealing ring 21 and the metal handle ring 22.

[0031] In this embodiment, a sealing groove 14 is provided at the front end of the first connector 11. The sealing groove 14 is located outside the first pipeline 1. The metal sealing ring 21 is slidably connected to the inner wall of the sealing groove 14, and a secondary seal is formed between the metal sealing ring 21 and the sealing groove 14.

[0032] In this embodiment, the outer side of the metal handle ring 22 is provided with anti-slip texture 25 to facilitate the rotation of the metal handle ring 22.

[0033] Operating method: When in use, the first pipeline 1 is inserted into the interior of the metal sealing ring 21. The first pipeline 1 contacts the metal cone 24 through the arc surface 15, forming a first-level seal. At the same time, the first pipeline 1 enters the interior of the rubber sealing ring 23, forming a second-level seal. The edge of the metal sealing ring 21 enters the sealing groove 14, forming a third-level seal. The internal thread 27 contacts the external thread 13. Then, the metal handle ring 22 is rotated. The metal handle ring 22 is fixedly connected to the first connector 11 through the cooperation of the internal thread 27 and the external thread 13, forming a fourth-level seal. When the metal handle ring 22 is rotated, the metal sealing ring 21 rotates relative to the sliding sealing ring 28 and the sliding sealing groove 26, squeezing and sealing the metal cone 24 with the inner side of the first pipeline 1.

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

Claims

1. A gas pipeline mating joint, comprising a first pipeline (1), wherein a first connector (11) is fixedly installed on the outer side of the first pipeline (1), characterized in that: The front end of the first connector (11) is threaded with a metal handle ring (22). A metal sealing ring (21) is rotatably installed inside the metal handle ring (22). An adapter through hole (29) is opened on the rear side of the metal sealing ring (21). A second pipeline (2) is fixedly installed inside the adapter through hole (29). A metal cone (24) is fixedly installed at the front end of the second pipeline (2). The metal cone (24) is located inside the metal sealing ring (21) and cooperates with the first pipeline (1).

2. A gas pipeline connection joint according to claim 1, characterized in that: The outer side of the first connector (11) is fitted with an anti-slip sleeve (12).

3. A gas pipeline connection joint according to claim 1, characterized in that: The first connector (11) has an external thread (13) at its front end, and the metal handle ring (22) has an internal thread (27) on its inner side. The internal thread (27) is threadedly connected to the external thread (13).

4. A gas pipeline connection joint according to claim 1, characterized in that: A rubber sealing ring (23) is fixedly provided on the inner side of the metal sealing ring (21), and the outer side of the first pipeline (1) is sealed with the inner ring of the rubber sealing ring (23).

5. A gas pipeline connection joint according to claim 1, characterized in that: The inner side of the metal handle ring (22) is provided with a sliding sealing groove (26), and the outer side of the metal sealing ring (21) is fixedly installed with a sliding sealing ring (28), and the sliding sealing ring (28) is slidably connected to the inner wall of the sliding sealing groove (26).

6. A gas pipeline connection joint according to claim 1, characterized in that: The first connector (11) has a sealing groove (14) at its front end. The sealing groove (14) is located outside the first pipeline (1). The metal sealing ring (21) is slidably connected to the inner wall of the sealing groove (14).

7. A gas pipeline connection joint according to claim 1, characterized in that: The front end of the first pipeline (1) is provided with an arc-shaped surface (15).

8. A gas pipeline connection joint according to claim 1, characterized in that: The outer side of the metal handle ring (22) is provided with anti-slip texture (25).

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