Improved gas-insulated connection assembly

By combining a multi-layer sealing ring structure with insulating rotating parts, the problem of sealing failure in gas insulation connection assemblies is solved, thus achieving safety and stability in gas transportation.

CN224414566UActive Publication Date: 2026-06-26ZHUJI DUNER VALVE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUJI DUNER VALVE CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing gas-insulated connection assemblies may experience sealing failure due to aging of the sealing rings after prolonged operation, posing a safety hazard of gas leakage.

Method used

It adopts a multi-layer sealing ring structure, including a first sealing ring, a second sealing ring and a third sealing ring. Through the cooperation of the insulating rotating part and the limiting plate, it achieves all-round sealing between the components and enhances the connection stability.

Benefits of technology

It effectively prevents gas leaks, ensures the safety and stability of gas transportation, and improves the sealing and reliability of connection components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to gas pipeline technical field discloses an improved gas insulation connecting assembly, including first conduit, the first conduit right -hand outer wall fixedly connected with the limit stop, the first conduit outer wall rotationally connected with insulation rotating part, the insulation rotating part is located the left end of limit stop, the first conduit outer wall is equipped with third sealing washer, third sealing washer is located between insulation rotating part and limit stop, the inner wall screw thread connection of insulation rotating part has the connecting pipe, the right end of insulation rotating part is connected with insulation top block through sealing assembly. In the utility model, through second sealing washer, first sealing washer and third sealing washer all -round improve the sealing property between each component, and install the pipe and screw into second conduit and realize insulation top block, connecting pipe and second conduit stable connection, and insulation rotating part is screwed on the connecting pipe, not only makes first conduit and second conduit successfully link, opens gas transportation passage.
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Description

Technical Field

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

[0002] With the continuous development of the energy industry, natural gas, as an efficient and clean energy source, is being used more and more widely in industrial production and daily life. In natural gas transmission systems, gas insulation connection components play a crucial role, as they need to ensure the safe and stable transmission of natural gas while meeting various requirements such as electrical insulation.

[0003] In existing connection components, after long-term operation, the single-layer rubber sealing ring is prone to aging and deformation due to long-term chemical corrosion from gas and frequent fluctuations in temperature and pressure, leading to sealing failure and gas leakage, which poses a serious safety hazard. In response to this technical problem, this application proposes an improved gas insulation connection component. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an improved gas insulation connection assembly. The second sealing ring, the first sealing ring, and the third sealing ring comprehensively improve the sealing performance between the components. The installation tube is screwed into the second conduit to achieve a stable connection between the insulating top block, the connecting pipe, and the second conduit. The insulating rotating part is screwed onto the connecting pipe, which not only successfully connects the first conduit and the second conduit but also opens the gas transportation path.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An improved gas insulation connection assembly includes a first conduit, a limiting plate fixedly connected to the outer wall of the right end of the first conduit, an insulating rotating component rotatably connected to the outer wall of the first conduit, the insulating rotating component being located at the left end of the limiting plate, a third sealing ring sleeved on the outer wall of the first conduit, the third sealing ring being located between the insulating rotating component and the limiting plate, a connecting pipe threadedly connected to the inner wall of the insulating rotating component, an insulating top block connected to the right end of the insulating rotating component via a sealing assembly, the left end of the insulating top block being fixedly connected to the right end of the connecting pipe, and a second conduit connected to the right end of the insulating top block via an installation assembly.

[0007] Furthermore, the sealing assembly includes a first sealing ring located at the right end of the insulating rotating member, and sealing grooves are provided at both the right end of the insulating rotating member and the left end of the insulating top block, with both the left and right ends of the first sealing ring disposed inside the sealing grooves.

[0008] Furthermore, the first sealing ring is fitted onto the outer wall of the connecting pipe.

[0009] Furthermore, the mounting assembly includes a mounting tube fixedly connected to the right end of the insulating top block, and the second conduit has a threaded groove inside, with the outer wall of the mounting tube being adapted to the threaded groove.

[0010] Furthermore, the left end of the second conduit is provided with a insertion groove, and a second sealing ring is provided inside the insertion groove.

[0011] Furthermore, a pressing plate is fixedly connected to the right end of the insulating top block, and the pressing plate is located on the outer wall of the mounting tube.

[0012] Furthermore, the extrusion plate is disposed inside the insertion groove, and the extrusion plate is located to the left of the second sealing ring.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, by placing a second sealing ring in the second conduit insertion groove, and using the squeezing plate to press it when the installation pipe is screwed in, the seal between the insulating top block and the second conduit is strengthened, effectively preventing gas leakage from this point. At the same time, the first sealing ring is fitted on the connecting pipe, with its two ends entering the sealing grooves of the insulating top block and the insulating rotating part, respectively. Combined with the third sealing ring being squeezed by the insulating rotating part, the sealing performance between the components is improved in all aspects, ensuring the safety of gas transportation.

[0015] In this invention, the installation tube is screwed into the second conduit to achieve a stable connection between the insulating top block, the connecting tube, and the second conduit. The insulating rotating part is screwed onto the connecting tube, which not only successfully connects the first and second conduits and opens the gas transportation passage, but also ensures that the components cooperate with each other during the connection process. For example, the limiting plate and the insulating rotating part work together to squeeze the third sealing ring, further ensuring a tight connection. This structurally guarantees the stability and reliability of gas transportation. Attached Figure Description

[0016] Figure 1 This is a perspective view of an improved gas insulation connection assembly proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the sealing component structure of an improved gas insulation connection assembly proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the installation pipe structure of an improved gas insulation connection assembly proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the extrusion plate structure of an improved gas insulation connection assembly proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the third sealing ring structure of an improved gas insulation connection assembly proposed in this utility model.

[0021] Legend:

[0022] 1. First conduit; 2. Insulating rotating component; 3. First sealing ring; 4. Insulating top block; 5. Second conduit; 6. Connecting pipe; 7. Mounting pipe; 8. Second sealing ring; 9. Extrusion plate; 10. Third sealing ring; 11. Limiting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides an improved gas insulation connection assembly, including a first conduit 1, a limiting plate 11 fixedly connected to the outer wall of the right end of the first conduit 1, an insulating rotating component 2 rotatably connected to the outer wall of the first conduit 1, the insulating rotating component 2 being located at the left end of the limiting plate 11, a third sealing ring 10 sleeved on the outer wall of the first conduit 1, the third sealing ring 10 being located between the insulating rotating component 2 and the limiting plate 11, a connecting pipe 6 threadedly connected to the inner wall of the insulating rotating component 2, an insulating top block 4 connected to the right end of the insulating rotating component 2 through the first sealing ring 3, the left end of the insulating top block 4 fixedly connected to the right end of the connecting pipe 6, an installation pipe 7 fixedly connected to the right end of the insulating top block 4, a threaded groove opened inside the second conduit 5, the outer wall of the installation pipe 7 being adapted to the threaded groove, a plug-in groove opened at the left end of the second conduit 5, a second sealing ring 8 being provided inside the plug-in groove, a pressing plate 9 fixedly connected to the right end of the insulating top block 4, the pressing plate 9 being located on the outer wall of the installation pipe 7, the pressing plate 9 being located inside the plug-in groove, and the pressing plate 9 being located to the left of the second sealing ring 8;

[0025] Specifically, a pre-drilled insertion groove is provided on the second conduit 5, in which the second sealing ring 8 is precisely placed. Next, the installation tube 7 is connected to the second conduit 5 by screwing the installation tube 7 into the threaded groove inside the second conduit 5. During this screwing process, the compression plate 9 on the installation tube 7 gradually enters the insertion groove of the second conduit 5. As the installation tube 7 continues to rotate, the compression plate 9 penetrates deeper, applying pressure to the second sealing ring 8 already placed in the insertion groove. This pressure causes the second sealing ring 8 to deform, tightly fitting it against the connection between the insulating top block 4 and the second conduit 5, thereby significantly increasing the sealing performance between them and effectively preventing gas leakage from this connection point. As the insulating rotating part 2 rotates, the connecting pipe 6 gradually penetrates into the interior of the insulating rotating part 2 until the connecting pipe 6 comes into contact with the limiting plate 11 located in the insulating rotating part 2. On this basis, the insulating rotating part 2 continues to rotate, and the rear of the insulating rotating part 2 gradually approaches and squeezes the third sealing ring 10 located between the insulating rotating part 2 and the limiting plate 11. This squeezing action makes the third sealing ring 10 tightly fill the gap, effectively preventing the gas transmitted through the connecting pipe 6 from leaking from the rear of the insulating rotating part 2. Through the tight connection between the insulating rotating part 2 and the connecting pipe 6, the first conduit 1 and the second conduit 5 are successfully connected into a complete passage, thereby realizing the safe and stable transportation of gas.

[0026] Reference Figure 2 and Figure 5 The right end of the insulating rotating part 2 is provided with a first sealing ring 3. Both the right end of the insulating rotating part 2 and the left end of the insulating top block 4 are provided with sealing grooves. Both the left and right ends of the first sealing ring 3 are provided inside the sealing grooves. The first sealing ring 3 is sleeved on the outer wall of the connecting pipe 6.

[0027] Specifically, the first sealing ring 3 is carefully fitted onto the connecting pipe 6, ensuring that one end of it can accurately enter the pre-set sealing groove on the insulating top block 4. At this time, the first conduit 1 and the connecting pipe 6 are connected. Using the insulating rotating part 2 on the first conduit 1, it is twisted toward the connecting pipe 6. The other side of the first sealing ring 3 fitted onto the connecting pipe 6 will also enter the sealing groove on the insulating rotating part 2, further improving the sealing performance between the insulating rotating part 2 and the insulating top block 4.

[0028] Working principle: First, a second sealing ring 8 is placed in the insertion groove on the second conduit 5. Then, the installation tube 7 is screwed into the threaded groove inside the second conduit 5, thereby connecting the insulating top block 4 and the connecting tube 6 to the second conduit 5. During the screwing of the installation tube 7, the extrusion plate 9 on it enters the insertion groove on the second conduit 5. As the installation tube 7 continues to rotate, the extrusion plate 9 extrudes the second sealing ring 8 placed inside the insertion groove, thereby increasing the sealing between the insulating top block 4 and the second conduit 5 and preventing gas leakage from the connection between the two. Then, the first sealing ring 3 is fitted onto the connecting tube 6, so that one end of it enters the sealing groove on the insulating top block 4. At this time, the first conduit 1 is then used to... The insulating rotating part 2 is screwed onto the connecting pipe 6, so that the connecting pipe 6 penetrates into the interior of the insulating rotating part 2 and contacts the limiting plate 11 inside the insulating rotating part 2. By continuing to rotate the insulating rotating part 2, the rear of the insulating rotating part 2 will squeeze the third sealing ring 10 between the insulating rotating part 2 and the limiting plate 11, preventing the gas transmitted through the connecting pipe 6 from leaking from the rear of the insulating rotating part 2. The other side of the first sealing ring 3 will enter the sealing groove on the insulating rotating part 2, thereby improving the sealing between the insulating rotating part 2 and the insulating top block 4. Furthermore, by connecting the insulating rotating part 2 and the connecting pipe 6, the first conduit 1 and the second conduit 5 are connected, thereby transporting the gas.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved gas-insulated connection assembly, comprising a first conduit (1), characterized in that: A limiting plate (11) is fixedly connected to the outer wall of the right end of the first conduit (1). An insulating rotating part (2) is rotatably connected to the outer wall of the first conduit (1). The insulating rotating part (2) is located at the left end of the limiting plate (11). A third sealing ring (10) is sleeved on the outer wall of the first conduit (1). The third sealing ring (10) is located between the insulating rotating part (2) and the limiting plate (11). A connecting pipe (6) is threadedly connected to the inner wall of the insulating rotating part (2). An insulating top block (4) is connected to the right end of the insulating rotating part (2) through a sealing assembly. The left end of the insulating top block (4) is fixedly connected to the right end of the connecting pipe (6). A second conduit (5) is connected to the right end of the insulating top block (4) through an installation assembly.

2. The improved gas insulation connection assembly according to claim 1, characterized in that: The sealing assembly includes a first sealing ring (3) located at the right end of the insulating rotating part (2). Both the right end of the insulating rotating part (2) and the left end of the insulating top block (4) are provided with sealing grooves, and both the left and right ends of the first sealing ring (3) are located inside the sealing grooves.

3. An improved gas insulation connection assembly according to claim 2, characterized in that: The first sealing ring (3) is fitted onto the outer wall of the connecting pipe (6).

4. An improved gas insulation connection assembly according to claim 1, characterized in that: The mounting assembly includes a mounting tube (7) fixedly connected to the right end of the insulating top block (4), and the second conduit (5) has a threaded groove inside, with the outer wall of the mounting tube (7) being adapted to the threaded groove.

5. An improved gas insulation connection assembly according to claim 1, characterized in that: The second conduit (5) has a insertion groove at its left end, and a second sealing ring (8) is provided inside the insertion groove.

6. An improved gas insulation connection assembly according to claim 4, characterized in that: An extrusion plate (9) is fixedly connected to the right end of the insulating top block (4), and the extrusion plate (9) is located on the outer wall of the mounting tube (7).

7. An improved gas insulation connection assembly according to claim 6, characterized in that: The extrusion plate (9) is disposed inside the insertion groove, and the extrusion plate (9) is located to the left of the second sealing ring (8).