A gas leak-proof sleeve joint

Abstract

The application discloses a gas leakage-proof sleeve joint, and belongs to the technical field of gas fittings, which is characterized in that a pipeline is provided with two protective members symmetrically arranged along the joint of the pipeline, a leakage-proof assembly, wherein the protective member comprises a mounting sleeve and a protective sleeve which are integrally formed, and the mounting sleeve and the protective sleeve are each provided with two upper and lower sleeves, and the two pairs of mounting sleeves and protective sleeves are surrounded to form a cylindrical structure arranged on the pipeline, so that when the joint leaks, the leaked gas is difficult to directly diffuse to the external environment through the protective sleeve, the safety risk is reduced, and a leakage detection mechanism is provided to timely find the leakage, so that the maintenance personnel can quickly respond and handle, and the safety risk is further reduced.

Description

Technical Field

[0001] This application belongs to the field of gas fittings technology, and in particular relates to a gas leak-proof sleeve joint. Background Technology

[0002] Gas pipelines are part of municipal infrastructure. At the connection points between gas pipelines, flanges or pipe fittings are often used to connect them. To increase the service life of gas pipelines, protective sleeves are often used to protect the gas pipe fittings. Most existing protective sleeves can only achieve a single physical protection function and lack an effective sealing design. When a gas leak occurs at the joint, the leaked gas can easily break through the protective sleeve and spread directly into the external environment, causing safety hazards. Utility Model Content

[0003] The purpose of this application is to address the aforementioned technical problems by providing a gas leak-proof sleeve connector that prevents leaked gas from easily breaking through the protective sleeve and spreading directly into the external environment when a gas leak occurs at the connector, thus reducing safety hazards. Simultaneously, it is equipped with an active leak detection mechanism that can promptly detect leaks, enabling maintenance personnel to respond and handle them quickly, further reducing safety risks.

[0004] This application provides a gas leak-proof sleeve joint, including a pipeline, and further including: The protective component is provided in two parts, which are symmetrically arranged along the pipe joint. Leakage prevention components; The protective component includes an installation sleeve and a protective sleeve. The installation sleeve and the protective sleeve are integrally formed. Both the installation sleeve and the protective sleeve are provided in two parts, one at the top and one at the bottom. The two pairs of installation sleeves and protective sleeves form a cylindrical shape and are placed on the pipe.

[0005] The basic structure of this gas leak-proof sleeve joint includes a pipeline and matching protective components and leak-proof assemblies. Two protective components are provided, symmetrically distributed along the pipeline joint. Each protective component consists of an mounting sleeve and a protective sleeve, manufactured as a single piece. This structural design enhances the connection's strength and prevents separation during use. Each mounting sleeve and protective sleeve has two pairs, upper and lower. When these two pairs are joined together, they form a complete cylindrical structure that fits over the pipeline, precisely covering the joint. This connection method provides the first line of protection for the pipeline joint. The single-piece mounting sleeve and protective sleeve ensure the stability of the protective structure, while the assembled cylindrical structure completely encloses the joint, effectively blocking external factors from directly affecting the pipeline joint and reducing the risk of leakage due to external impact or corrosion.

[0006] Furthermore, a sealing rubber gasket is provided at the joint of the two pairs of mounting sleeves and protective sleeves, and a sealing rubber gasket is also provided at the joint of the two protective components.

[0007] To further enhance the sealing performance of the joint, a cylindrical structure formed by two pairs of mounting sleeves and protective sleeves is created. Sealing rubber gaskets are placed at the joints of the two pairs of mounting sleeves and protective sleeves, and also at the joints of two symmetrically distributed protective components. These sealing rubber gaskets fit tightly against each joint, forming a tight seal with the mounting sleeves, protective sleeves, and the two protective components. Utilizing their excellent elasticity and sealing properties, the gaskets fill any tiny gaps that may exist at the joints, preventing gas leaks from the pipe joint from spreading outwards through these gaps. This design not only provides physical protection but also forms a sealing barrier. Even if a minor leak occurs at the pipe joint, the leaked gas is confined within the cylindrical space enclosed by the protective components, preventing direct leakage into the external environment. This provides valuable time for subsequent detection and treatment, significantly improving the leak-proof performance of the joint.

[0008] Furthermore, the mounting sleeve is provided with a clamp groove, and a clamp is provided in the clamp groove.

[0009] To ensure the stability of the connection between the protective component and the pipeline and to prevent displacement or detachment during use, a clamp groove is provided on the mounting sleeve, into which a clamp is installed. The size of the clamp groove matches the clamp. After the clamp is installed in the clamp groove, tightening the fasteners on the clamp generates radial contraction force, tightly clamping the clamp within the clamp groove of the mounting sleeve. This securely connects the mounting sleeve to the pipeline. The contraction and tightening action of the clamp stably fixes the mounting sleeve to the pipeline. The clamp groove also limits the clamp's position, preventing slippage or displacement during stress. This ensures that the cylindrical structure formed by the two pairs of mounting sleeves and the protective sleeve remains precisely positioned at the pipeline joint, preventing displacement or detachment due to pipeline vibration, media flow, or other factors. This further guarantees the continuous and stable sealing and protective function of the protective component.

[0010] Furthermore, the leak-proof component includes: The detection sleeve is provided in two parts, and the two detection sleeves are symmetrically arranged at their joint. The cylinder formed by the two detection sleeves covers the protective component. The detection sleeve is installed on the pipeline by clamps. The detection hose has one end inserted into a cylinder composed of two detection sleeves, and the other end connected to an external leak detection device.

[0011] By adding a leak-proof assembly consisting of a detection sleeve and a detection hose to the protective component, a second layer of leak protection is formed. Two detection sleeves are symmetrically distributed along the pipe joint, forming a complete cylinder that perfectly covers the outside of the protective component. The detection sleeves are connected to the pipe via clamps, similar to the connection of the protective component's mounting sleeves, ensuring a secure connection. One end of the detection hose passes through the wall of the cylinder formed by the two detection sleeves, extending into the inner cavity of the cylinder; the other end connects to external leak detection equipment. When a leak occurs at the pipe joint, and the leaking gas breaches the protective component's seal, it will diffuse into the cavity between the detection sleeve and the protective component. Due to the excellent sealing between the detection sleeve and the pipe, as well as at the joint itself, the gas is confined within this cavity. As the gas accumulates within the cavity, the external detection equipment, connected to the detection hose, can promptly detect the presence of gas within the cavity, thus issuing a leak alarm. This design enables proactive detection of gas leaks. Even if the protective components fail to seal properly, leaks can be detected promptly through the detection sleeve and hose, preventing large amounts of gas from leaking into the external environment and causing safety hazards.

[0012] Furthermore, the detection sleeve is provided with a limiting ring, and the protective sleeve is provided with a limiting groove. When the detection sleeve is installed on the pipeline, the limiting ring is inserted into the limiting groove.

[0013] To further enhance the stability and accuracy of the detection sleeve installation, a limiting ring is incorporated into the detection sleeve, and a corresponding limiting groove is provided on the protective sleeve. When the detection sleeve is installed on the pipeline using clamps, the limiting ring on the detection sleeve precisely inserts into the limiting groove on the protective sleeve. The precise size match between the limiting ring and the limiting groove creates a tight fit, providing both circumferential and axial limiting for the detection sleeve, preventing circumferential rotation or axial displacement during installation and use. When the detection sleeve covers the protective component, the limiting ring inserts into the limiting groove, forming a cohesive whole. This ensures that the detection sleeve always precisely covers the outside of the protective component, preventing positional shifts due to external factors and eliminating detection blind spots. This guarantees comprehensive coverage of the external space of the protective component, ensuring that leaked gas can be collected and detected promptly, thus improving the reliability of leak detection.

[0014] Furthermore, a sealing rubber gasket is also provided on the surface of the detection sleeve that contacts the tube body.

[0015] By creating a second, robust sealing barrier for the detection sleeve, sealing rubber gaskets are also installed on the surface where the detection sleeve contacts the pipeline. These gaskets adhere tightly to the contact surfaces of the detection sleeve and the pipeline, forming a close seal. The gaskets fill the gaps between the contact surfaces, preventing gas leakage from the contact point. When gas leaks from the protective element and enters the cavity between the detection sleeve and the protective element, the joint of the detection sleeve itself and the sealing rubber gasket at the pipeline contact point form a complete sealed space, completely confining the leaked gas within this space. This prevents the gas from leaking out of the detection sleeve and into the external environment. Therefore, the detection sleeve not only serves as a carrier for leak detection but also becomes a crucial sealing barrier, effectively delaying the time it takes for gas to leak to the outside, providing maintenance personnel with ample reaction and handling time, and minimizing the safety risks associated with gas leaks.

[0016] The beneficial effects of this application are: 1. Sealing rubber gaskets are installed at the joints of the protective components and the joints of the mounting sleeve and the protective sleeve to form the first sealing barrier. Sealing rubber gaskets are also installed at the contact surface between the detection sleeve and the pipeline to form the second sealing barrier. The double sealing can confine the leaked gas to a specific space and prevent direct leakage.

[0017] 2. The installation sleeve is secured with clamps in the groove to prevent the protective components from shifting or coming off; the detection sleeve is inserted into the limiting groove of the protective sleeve via a limiting ring to prevent the detection sleeve from shifting. This multi-layered fixing structure ensures that the protective and detection components are always accurately positioned and minimally affected by vibration and other factors.

[0018] 3. The detection sleeve is covered with protective components and is equipped with a detection hose to connect to external equipment. After the gas breaks through the first seal, it will accumulate in the detection sleeve cavity. The equipment will detect it in time through the hose and trigger an alarm, which will buy enough time for maintenance and reduce safety hazards. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the overall structure of this application; Figure 2 This is a schematic diagram of the structure of the protected component of this application; Figure 3 This application is Figure 1 Enlarged view of part A; The attached diagram is labeled as follows: 100, pipe; 200, protective component; 210, mounting sleeve; 220, protective sleeve; 230, sealing rubber gasket; 250, clamp groove; 260, clamp; 300, leak-proof component; 310, detection sleeve; 311, limit ring; 312, limit groove; 320, detection hose. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The embodiments of this application are described in detail below with reference to the accompanying drawings, through specific examples and application scenarios.

[0023] Example 1: like Figure 1 , Figure 2 , Figure 3 As shown in the figure, this application embodiment provides a gas leak-proof sleeve joint, including a pipe 100, and further including: Two protective components 200 are provided, and the two are symmetrically arranged along the joint of the pipe 100; Leakage prevention component 300; The protective component 200 includes an installation sleeve 210 and a protective sleeve 220. The installation sleeve 210 and the protective sleeve 220 are integrally formed. Each of the installation sleeve 210 and the protective sleeve 220 has two pairs, one upper and one lower. The two pairs of installation sleeves 210 and the protective sleeve 220 form a cylindrical shape and are placed on the pipe 100.

[0024] The basic structure of this gas leak-proof sleeve joint includes a pipe 100 and matching protective components 200 and leak-proof components 300. Two protective components 200 are provided, symmetrically distributed along the joint of the pipe 100. Each protective component 200 consists of an mounting sleeve 210 and a protective sleeve 220, which are integrally molded. This structural design enhances the connection's strength and prevents separation during use. Furthermore, each mounting sleeve 210 and protective sleeve 220 has two pairs, upper and lower. When these two pairs are joined together, they form a complete cylindrical structure that fits over the pipe 100, precisely covering the joint. With this connection method, the two symmetrically arranged protective components 200 form the first line of protection for the joint of the pipe 100. The integrally formed installation sleeve 210 and protective sleeve 220 ensure the stability of the protective structure, while the assembled cylindrical structure can fully wrap the joint, effectively blocking the direct impact of external factors on the joint of the pipe 100 and reducing the risk of leakage at the joint due to external collision or corrosion.

[0025] Example 2: like Figure 3 As shown, this application embodiment provides a gas leak-proof sleeve connector. In addition to the above-mentioned technical features, a sealing rubber gasket 230 is provided at the joint of the two pairs of mounting sleeves 210 and protective sleeves 220, and a sealing rubber gasket 230 is also provided at the joint of the two protective components 200.

[0026] To further enhance the sealing performance of the protection, a sealing rubber gasket 230 is installed at the joint of the two pairs of mounting sleeves 210 and protective sleeves 220, based on the cylindrical structure formed by the splicing of two pairs of mounting sleeves 210 and protective sleeves 220. A sealing rubber gasket 230 is also installed at the joint of two symmetrically distributed protective components 200. The sealing rubber gasket 230 fits tightly against each joint gap, forming a tight seal with the mounting sleeves 210, protective sleeves 220, and the two protective components 200. Utilizing its own good elasticity and sealing properties, the sealing rubber gasket 230 fills any tiny gaps that may exist at the joint, preventing gas leaks from the pipe 100 joint and diffuses outwards through the joint gaps. This design allows the protective component 200 to not only provide physical protection but also form a sealed barrier. Even if a minor leak occurs at the joint of the pipe 100, the leaked gas will be confined within the cylindrical space enclosed by the protective component 200 and will not leak directly into the external environment. This buys time for subsequent detection and treatment and greatly improves the leak-proof performance of the joint.

[0027] Example 3: like Figure 3As shown, this application embodiment provides a gas leak-proof sleeve connector, which, in addition to the above-mentioned technical features, has a clamp 260 groove 250 on the mounting sleeve 210, and a clamp 260 is provided in the clamp 260 groove 250.

[0028] To ensure the stability of the connection between the protective component 200 and the pipeline 100 and to prevent the protective component 200 from shifting or coming off during use, a clamp 260 groove 250 is provided on the mounting sleeve 210, and a clamp 260 is installed in the clamp 260 groove 250. The dimensions of the groove 250 of clamp 260 match those of clamp 260. After clamp 260 is installed in groove 250, tightening the fasteners on clamp 260 causes radial contraction force, tightly clamping it into groove 250 of mounting sleeve 210. This securely connects mounting sleeve 210 to pipe 100. The contraction and tightening action of clamp 260 stabilizes mounting sleeve 210 on pipe 100. Groove 250 of clamp 260 limits clamp 260, preventing slippage or displacement during stress. This ensures that the cylindrical structure formed by the two pairs of mounting sleeves 210 and protective sleeve 220 remains in the precise position at the joint of pipe 100, preventing displacement or detachment due to pipe 100 vibration, media flow, or other factors. This further ensures the continuous and stable sealing and protective function of protective component 200.

[0029] Example 4: like Figure 2 , Figure 3 As shown, this application embodiment provides a gas leak-proof sleeve connector, which, in addition to the above-mentioned technical features, includes the leak-proof component 300 comprising: The detection sleeve 310 is provided in two parts, and the two detection sleeves 310 are symmetrically arranged at the joint. The cylinder formed by the two detection sleeves 310 is covered by the protective component 200. The detection sleeve 310 is installed on the pipe 100 by clamp 260. The detection hose 320 has one end inserted into the cylinder formed by two detection sleeves 310, and the other end connected to an external leakage detection device.

[0030] By adding a leak-proof assembly 300 consisting of a detection sleeve 310 and a detection hose 320 to the protective component 200, a second layer of leak-proof protection is formed. Two detection sleeves 310 are provided, symmetrically distributed along the joint of the pipe 100, and together they form a complete cylinder that precisely covers the outside of the protective component 200. The detection sleeves 310 are connected to the pipe 100 via clamps 260, in a connection method similar to that of the mounting sleeve 210 of the protective component 200, ensuring a secure connection between the detection sleeves 310 and the pipe 100. One end of the detection hose 320 passes through the wall of the cylinder formed by the two detection sleeves 310 and extends into the inner cavity of the cylinder; the other end connects to external leak detection equipment. When a leak occurs at the joint of the pipe 100, and the leaking gas breaches the seal of the protective component 200, it will diffuse into the cavity between the detection sleeves 310 and the protective component 200. Because the joints between the detection sleeve 310 and the pipeline 100, as well as the detection sleeve 310 itself, have excellent sealing properties, the gas is confined within the cavity. As the gas accumulates within the cavity, it is connected to external detection equipment via the detection hose 320. The external detection equipment can then promptly detect the presence of gas within the cavity and issue a leak alarm. This design enables proactive detection of gas leaks. Even if the seal of the protective component 200 fails, the leak can still be detected promptly through the detection sleeve 310 and the detection hose 320, preventing a large amount of gas from leaking into the external environment and causing safety hazards.

[0031] Example 5: like Figure 2 , Figure 3 As shown, this application embodiment provides a gas leak prevention sleeve joint. In addition to the above-mentioned technical features, the detection sleeve 310 is provided with a limiting ring 311, and the protective sleeve 220 is provided with a limiting groove 312. When the detection sleeve 310 is installed on the pipeline 100, the limiting ring 311 is inserted into the limiting groove 312.

[0032] To further enhance the stability and accuracy of the installation of the testing sleeve 310, a limiting ring 311 is provided on the testing sleeve 310, and a corresponding limiting groove 312 is provided on the protective sleeve 220. When the testing sleeve 310 is installed on the pipe 100 via the clamp 260, the limiting ring 311 on the testing sleeve 310 is precisely inserted into the limiting groove 312 on the protective sleeve 220. The precise size matching of the limiting ring 311 and the limiting groove 312 forms a tight insertion fit. The insertion fit of the limiting ring 311 and the limiting groove 312 provides dual circumferential and axial limiting for the testing sleeve 310, preventing circumferential rotation or axial displacement of the testing sleeve 310 during installation and use. When the detection sleeve 310 covers the outside of the protective component 200, the limiting ring 311 is inserted into the limiting groove 312, so that the detection sleeve 310 and the protective component 200 form a coordinated whole structure. This ensures that the detection sleeve 310 is always accurately covering the outside of the protective component 200, and there will be no detection blind spots due to positional deviation caused by external factors. This ensures that the detection sleeve 310 fully covers the external space of the protective component 200, ensuring that leaked gas can be collected and detected in a timely manner, thus improving the reliability of leak detection.

[0033] Example 6: like Figure 1 As shown, this application embodiment provides a gas leak prevention sleeve connector, which, in addition to the above-mentioned technical features, also has a sealing rubber gasket 230 provided on the surface of the detection sleeve 310 that contacts the pipe body.

[0034] To create a second, robust sealing barrier, a sealing rubber gasket 230 is also provided on the surface where the detection sleeve 310 contacts the pipe 100. The sealing rubber gasket 230 adheres to the contact surfaces of the detection sleeve 310 and the pipe 100, forming a tight, sealed connection. The sealing rubber gasket 230 fills the gaps between the contact surfaces of the detection sleeve 310 and the pipe 100, preventing gas leakage from the contact point. When gas leaks from the protective element 200 and enters the cavity between the detection sleeve 310 and the protective element 200, the joint of the detection sleeve 310 and the sealing rubber gasket 230 at the contact point with the pipeline 100 form a complete sealed space, completely confining the leaked gas within this space. This prevents the gas from leaking out of the detection sleeve 310 into the external environment, making the detection sleeve 310 not only a carrier for leak detection but also an important sealing and protective barrier. This effectively delays the time it takes for gas to leak to the outside, providing maintenance personnel with sufficient reaction and handling time, and minimizing the safety risks caused by gas leaks.

[0035] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0036] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A gas leak-proof sleeve joint, comprising a pipe (100), characterized in that... It also includes: Two protective components (200) are provided, which are symmetrically arranged along the joint of the pipe (100); Leakage prevention component (300); The protective component (200) includes an installation sleeve (210) and a protective sleeve (220). The installation sleeve (210) and the protective sleeve (220) are integrally formed. Both the installation sleeve (210) and the protective sleeve (220) are provided with two sets, one upper and one lower. The two sets of installation sleeves (210) and protective sleeves (220) form a cylindrical shape and are placed on the pipe (100).

2. A gas leak-proof sleeve joint according to claim 1, characterized in that, A sealing rubber gasket (230) is provided at the joint of the two pairs of mounting sleeves (210) and protective sleeves (220), and a sealing rubber gasket (230) is also provided at the joint of the two protective components (200).

3. A gas leak-proof sleeve joint according to claim 2, characterized in that, The mounting sleeve (210) is provided with a clamp (260) groove (250), and a clamp (260) is provided in the clamp (260) groove (250).

4. A gas leak-proof sleeve joint according to claim 3, characterized in that, The leak-proof component (300) includes: The detection sleeve (310) is provided in two parts, and the two detection sleeves (310) are symmetrically arranged at the joint. The cylinder after the two detection sleeves (310) are assembled is covered outside the protective component (200). The detection sleeve (310) is installed on the pipe (100) by clamp (260). The detection hose (320) has one end inserted into the cylinder formed by two detection sleeves (310), and the other end connected to an external leakage detection device.

5. A gas leak-proof sleeve joint according to claim 4, characterized in that, The detection sleeve (310) is provided with a limiting ring (311), and the protective sleeve (220) is provided with a limiting groove (312). When the detection sleeve (310) is installed on the pipeline (100), the limiting ring (311) is inserted into the limiting groove (312).

6. A gas leak-proof sleeve joint according to claim 5, characterized in that, A sealing rubber pad (230) is also provided on the surface of the detection sleeve (310) that contacts the tube body.

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