Gas pipe plug

By using a stainless steel protective sleeve and a chamfered, raised, and grooved design on the plastic head, the problems of unstable sealing and easy damage to gas pipe plugs are solved, achieving a gas pipe plug with high efficiency and long service life.

CN224188270UActive Publication Date: 2026-05-01WUXI QIANSHI FUNCTIONAL PLASTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI QIANSHI FUNCTIONAL PLASTICS CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing gas pipe plugs have unstable sealing performance, are prone to aging and deformation, and are easily chewed by rats, resulting in a high risk of gas leakage.

Method used

The design incorporates a stainless steel protective sleeve and a plastic head, along with chamfered, raised, and grooved structures to ensure a secure connection and seal between the plastic head and the hose clamp, preventing separation and leakage.

Benefits of technology

It improves the service life and sealing effect of gas pipe plugs, reduces the risk of gas leakage, and enhances safety and stability in use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gas pipe plug, belongs to the technical field of gas pipe plugs, and solves the problem that the gas plug is inconvenient to protect. Comprising a protective sleeve, the inner wall of the protective sleeve is connected with a plastic head in a sliding mode, the outer surface of the plastic head is sleeved with a hose clamp, the outer surface of the protective sleeve is provided with a first chamfer, the caliber of the protective sleeve is gradually reduced in the direction of the first chamfer, and the protective sleeve is made of stainless steel materials. Through the protection sleeve made of stainless steel, the limiting design of the first chamfer and the second protrusion of the plastic head and the friction force increased by the third protrusion, not only can the plastic head be prevented from being bitten by rats, but also the stable connection between the protection sleeve and the plastic head is ensured, the plastic head can be reliably protected in various complex use environments, and the service life of the plastic head is prolonged. The service life of the gas pipe plug is prolonged, the safety and stability of gas or liquefied gas in the using process are improved, and the gas pipe plug is convenient to operate, carry and install.
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Description

A gas pipe plug Technical Field

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

[0002] In modern life, natural gas and liquefied petroleum gas (LPG) are widely used as efficient and convenient energy sources for home cooking, heating, and many commercial and industrial fields. However, natural gas and LPG are flammable and explosive. Once a leak occurs, it can easily cause serious safety accidents such as fires and explosions, posing a huge threat to people's lives and property. Therefore, the safety protection of gas equipment is of utmost importance. Among them, the gas pipe plug, as a small but critical component in the gas transmission system, has its performance directly related to the safety of gas use.

[0003] Common gas pipe plugs rely solely on simple rubber rings or plastic parts for sealing, resulting in unstable sealing performance. Over time or due to environmental factors, they are prone to aging and deformation, leading to seal failure and subsequent gas leaks. Furthermore, in environments where small animals such as rats are frequently active, gas pipe plugs are often gnawed by rats, damaging the plastic parts. Therefore, there is a problem with the difficulty in protecting gas pipe plugs. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a gas pipe plug.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a gas pipe plug, including a protective sleeve, a plastic head slidably connected to the inner wall of the protective sleeve, and a hose clamp fitted on the outer surface of the plastic head.

[0008] In a preferred embodiment of the gas pipe plug of this utility model, the outer surface of the protective sleeve is provided with a first chamfer, and the diameter of the protective sleeve gradually decreases towards the first chamfer. The protective sleeve is made of stainless steel.

[0009] By adopting the above technical solution, the first chamfer facilitates the limiting of the plastic head, preventing the plastic head from passing through the inside of the protective sleeve.

[0010] In a preferred embodiment of the gas pipe plug of this utility model, the outer surface of the plastic head is provided with a groove, and the outer surface of the groove is provided with a first protrusion.

[0011] By adopting the above technical solution, the first protrusion facilitates the limiting of the hose clamp, preventing the hose clamp and the plastic head from separating.

[0012] In a preferred embodiment of the gas pipe plug of this utility model, the outer surface of the plastic head is provided with a second protrusion, and the outer surface of the second protrusion is in contact with the inner wall of the first chamfer.

[0013] By adopting the above technical solution, the second protrusion helps to prevent the plastic head and the protective cover from separating.

[0014] In a preferred embodiment of the gas pipe plug of the present invention, a plurality of third protrusions are fixedly connected to the outer surface of the second protrusion, and the third protrusions are spaced apart on the outer surface of the second protrusion.

[0015] By adopting the above technical solution, the third protrusion facilitates increased friction between the plastic head and the inner wall of the protective sleeve.

[0016] In a preferred embodiment of the gas pipe plug described in this utility model, the plastic head, the second protrusion, the first protrusion, and the third protrusion are integrally formed.

[0017] By adopting the above technical solution and using one-piece molding, the manufacturing cost of the plastic head is reduced.

[0018] (III) Beneficial Effects

[0019] This utility model provides a gas pipe plug. It has the following beneficial effects:

[0020] 1. The stainless steel protective sleeve, combined with its first chamfer and the limiting design of the second protrusion of the plastic head, as well as the increased friction of the third protrusion, not only prevents rats from chewing the plastic head, but also ensures a stable connection between the protective sleeve and the plastic head. It can reliably protect the plastic head in various complex usage environments, extend the service life of the gas pipe plug, improve the safety and stability during the use of gas or liquefied gas, and is easy to operate, carry and install.

[0021] 2. The tight fit between the plastic head groove and the valve, along with the compression and tightening of the plastic head by the hose clamp, greatly enhances the sealing effect between the plastic head and the valve port, effectively preventing gas or liquefied gas leakage, reducing the risk of safety accidents caused by gas leakage, and providing a solid guarantee for the user's gas safety. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 is a schematic diagram of the front cross-sectional structure of this utility model;

[0025] Figure 3 is a schematic diagram of the exploded structure of this utility model.

[0026] In the diagram, 1 is the protective cover; 2 is the first chamfer; 3 is the plastic head; 4 is the hose clamp; 5 is the groove; 6 is the first protrusion; 7 is the second protrusion; and 8 is the third protrusion. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Example 1

[0029] Referring to Figures 1, 2 and 3, the first embodiment of this utility model is provided. This embodiment provides a gas pipe plug, including a protective sleeve 1, a plastic head 3 slidably connected to the inner wall of the protective sleeve 1, and a hose clamp 4 sleeved on the outer surface of the plastic head 3.

[0030] The outer surface of the protective cover 1 is provided with a first chamfer 2, and the diameter of the protective cover 1 gradually decreases towards the direction of the first chamfer 2. The protective cover 1 is made of stainless steel, and the outer surface of the plastic head 3 is provided with a groove 5, and the outer surface of the groove 5 is provided with a first protrusion 6.

[0031] Furthermore, the protective sleeve 1 made of stainless steel, combined with the limiting design of its first chamfer 2 and the second protrusion 7 of the plastic head 3, and the increased friction of the third protrusion 8, not only prevents rats from chewing the plastic head 3, but also ensures a stable connection between the protective sleeve 1 and the plastic head 3. It can reliably protect the plastic head 3 in various complex usage environments, extend the service life of the gas pipe plug, improve the safety and stability during the use of gas or liquefied gas, and is easy to operate, carry and install.

[0032] Example 2

[0033] Referring to Figures 1, 2 and 3, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The outer surface of the plastic head 3 is provided with a second protrusion 7, and the outer surface of the second protrusion 7 is in contact with the inner wall of the first chamfer 2.

[0034] Specifically, multiple sets of third protrusions 8 are fixedly connected to the outer surface of the second protrusion 7. The third protrusions 8 are spaced apart on the outer surface of the second protrusion 7. The plastic head 3, the second protrusion 7, the first protrusion 6 and the third protrusion 8 are integrally molded.

[0035] Furthermore, the uniquely designed plastic head 3 groove 5 fits tightly with the valve, and the hose clamp 4 squeezes and tightens the plastic head 3, greatly enhancing the sealing effect between the plastic head 3 and the valve port, effectively preventing gas or liquefied gas leakage, reducing the risk of safety accidents caused by gas leakage, and providing a solid guarantee for the user's gas safety.

[0036] Working Principle: When installing the gas pipe plug, first carefully inspect the gas or liquefied petroleum gas (LPG) valve interface to ensure that its surface is free of impurities, oil stains, or damage, which could affect the sealing effect. After confirming that the valve is in good condition, accurately insert the unsealed portion of the gas or LPG valve into the groove 5 on the outer surface of the plastic head 3. Since the size of the groove 5 is designed according to common valve interfaces, it can fit the valve tightly, laying the foundation for subsequent sealing work. After inserting the valve, start adjusting the hose clamp 4. The hose clamp 4 is usually adjusted by tightening its fastening bolts. During the tightening process, the hose clamp 4 gradually applies uniform pressure to the outer surface of the plastic head 3, making the plastic head 3 fit tightly against the valve opening. The outer surface of the first protrusion 6 fits against the side surface of the hose clamp 4, effectively preventing the hose clamp 4 from shifting or falling off during the tightening process. This ensures stable compression of the plastic head 3 by the hose clamp 4, thereby greatly increasing the sealing between the plastic head 3 and the valve opening, effectively preventing the leakage of gas or LPG.

[0037] The protective sleeve 1 is made of stainless steel, possessing excellent strength and corrosion resistance, capable of withstanding various external damages. Its inner wall is slidably connected to the plastic head 3. During installation, the protective sleeve 1 is slowly slid along the plastic head 3 until it is in place. The first chamfer 2 on the outer surface of the protective sleeve 1 cooperates with the second protrusion 7 on the outer surface of the plastic head 3, reliably limiting the plastic head 3 and preventing it from protruding from the inside of the protective sleeve 1. Furthermore, multiple sets of third protrusions 8 are fixedly connected to the outer surface of the second protrusion 7, spaced apart on the second protrusion 7. When the protective sleeve is placed on the plastic head 3, the third protrusion 8 increases the friction between the plastic head 3 and the inner wall of the protective sleeve 1, further ensuring the relative position stability between the protective sleeve 1 and the plastic head 3, and preventing the protective sleeve 1 from accidentally slipping off. In daily use, even if animals such as rats that may damage gas pipe components are encountered, the presence of the protective sleeve 1 makes it difficult for rats to bite the plastic head 3, thus effectively preventing the risk of gas leakage caused by the plastic head 3 being chewed up. This provides a reliable safety guarantee for the use of natural gas or liquefied petroleum gas, and is convenient to operate, carry, and install.

[0038] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A gas pipe plug comprising a protective sleeve (1), characterised in that: The inner wall of the protective sleeve (1) is slidably connected to a plastic head (3), and a hose clamp (4) is fitted on the outer surface of the plastic head (3). The outer surface of the protective sleeve (1) is provided with a first chamfer (2), and the diameter of the protective sleeve (1) gradually decreases towards the first chamfer (2). The protective sleeve (1) is made of stainless steel. The outer surface of the plastic head (3) is provided with a groove (5), and the outer surface of the groove (5) is provided with a first protrusion (6). The outer surface of the plastic head (3) is provided with a second protrusion (7), and the outer surface of the second protrusion (7) is in contact with the inner wall of the first chamfer (2).

2. A gas pipe plug according to claim 1, characterised in that: Multiple sets of third protrusions (8) are fixedly connected to the outer surface of the second protrusion (7), and the third protrusions (8) are spaced apart on the outer surface of the second protrusion (7).

3. A gas pipe plug according to claim 2, characterized in that: The plastic head (3), the second protrusion (7), the first protrusion (6) and the third protrusion (8) are integrally molded.