A docking assembly for concealed sealing of gas pipelines

Abstract

This utility model relates to a connecting assembly for concealed gas pipeline sealing, comprising an insert and a connector that plug in at the top and bottom. A stud is fixed at the center of both the insert and the connector, with the two studs facing each other. Each stud is threadedly connected to a limiting component. The bottom of the limiting component is threaded to the stud, the middle is a limiting post, and the top has a protrusion. A pipe clamp is arranged between the insert and the connector, with two facing through holes on the clamp. The two protrusions are located inside the pipe clamp, and the two limiting posts are surrounded by their corresponding through holes. This connecting assembly for concealed gas pipeline sealing solves the problem that conventional concealed sealing directly hides the gas pipeline, making it difficult to detect. In the event of a gas leak, the hidden gas pipeline makes it difficult to locate the leak, or even to know that a leak has occurred, leading to difficulties in timely handling and posing safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, and specifically to a docking component for concealed sealing of gas pipelines. Background Technology

[0002] Gas pipelines are piping systems used to transport natural gas. They play a vital role in modern cities and industries, delivering natural gas from pipelines or other gas sources to residential, commercial, and industrial users within cities. Gas pipelines can be further subdivided into distribution pipelines, user inlet pipes, and indoor gas pipelines. Indoor gas pipelines are permitted to be concealed (encased), but strict requirements apply. Concealing already installed exposed pipes is essentially a modification of the gas pipeline. The concealment of gas pipelines must comply with relevant regulations and safety requirements, and the concealed gas pipelines should be able to undergo regular safety inspections to ensure there are no leaks or damage.

[0003] In existing technologies, conventional concealed gas pipelines are directly hidden, making them difficult to detect. Once a gas leak occurs, the concealed gas pipeline makes it difficult to locate the leak, or even to know that a gas leak has occurred, making it difficult to deal with in a timely manner and posing a safety hazard.

[0004] Therefore, existing technologies have shortcomings and need to be improved and developed. Utility Model Content

[0005] The utility model provides a docking component for concealing gas pipelines, which solves the problem that conventional concealment in the prior art directly hides the gas pipeline, making it difficult to detect. Once a gas leak occurs, it is difficult to directly locate the gas leak location, or even know that a gas leak has occurred, which makes it difficult to deal with in a timely manner and poses a safety hazard.

[0006] This utility model provides a docking assembly for concealed sealing of gas pipelines, characterized in that it includes an insert and a connector that are inserted vertically. The insert includes a first mounting platform and a first insertion part and a second insertion part located on both sides of the first mounting platform. The connector includes a second mounting platform and a first receiving part and a second receiving part located on both sides of the second mounting platform. The first receiving part has a first groove that adapts to the outer contour of the first insertion part, and the first insertion part is inserted into the first groove. The second receiving part has a second groove that adapts to the outer contour of the second insertion part, and the second insertion part is inserted into the second groove. The center of the first mounting platform is directly opposite the center of the second mounting platform. A stud is fixed at the center of both the first and second mounting platforms. Each stud is threadedly connected to a limiting member, and the limiting member includes a rotating post threadedly connected to the stud. One end of the rotating column has a recessed threaded hole that fits the stud. A limiting post is fixed to the end of the rotating column not connected to the stud, and the diameter of the limiting post is smaller than the diameter of the rotating column. A protrusion is fixed to the end of the limiting post not connected to the rotating column, and the area of ​​the protrusion facing the limiting post is larger than the area of ​​the circular surface of the limiting post. A pipe clamp is arranged between the first mounting platform and the second mounting platform. The pipe clamp has two opposing through holes, the diameter of which is larger than the diameter of the limiting post but smaller than the diameter of the rotating column, and the area of ​​which is smaller than the area of ​​the protrusion facing the limiting post. One of the through holes surrounds the limiting post in the limiting member connected to the stud on the first mounting platform, and the other through hole surrounds the limiting post in the limiting member connected to the stud on the second mounting platform.

[0007] Furthermore, the first insertion part and the second insertion part are parallel to each other, and the angle between the first insertion part, the second insertion part and the first mounting platform is 90°.

[0008] Furthermore, the protrusion is hemispherical, and the circular surface of the protrusion is fixed to the end of the limiting post that is not connected to the rotating post, with the hemispherical surface of the protrusion close to the tube clamp.

[0009] Furthermore, at least one corrosion-resistant buffer layer is adhered to the hemispherical surface.

[0010] Furthermore, the corrosion-resistant buffer layer is one of flame-retardant neoprene rubber or silicone rubber.

[0011] Furthermore, the second mounting platform has at least one ventilation hole that penetrates the upper and lower surfaces of the second mounting platform, and the ventilation hole is positioned to avoid the fixing position of the stud on the second mounting platform.

[0012] Furthermore, the first mounting platform is provided with at least one mounting screw hole that penetrates the upper and lower surfaces of the first mounting platform, for detachably connecting the first mounting platform to the mounting plane near the gas pipeline.

[0013] Furthermore, the direction of gas flow in the gas pipeline is defined as the front. The first installation platform has a male buckle protruding outward in the front direction and a female buckle recessed in the rear direction. When the length of the gas pipeline to be sealed is greater than the length of the first installation platform in the front and rear directions, multiple docking components for sealing the gas pipeline are sequentially snapped together, wherein the male buckle of the previous docking component is snapped into the female buckle of the next docking component.

[0014] Beneficial effects:

[0015] As can be seen from the above technical solutions, this utility model provides a docking assembly for concealed sealing of gas pipelines:

[0016] 1. Convenient and reliable structural connection: The first and second insertion parts of the plug are respectively inserted into the first and second grooves of the connector, forming a stable positioning fit in the structure. This can effectively prevent the gas pipeline enclosure structure from loosening or misaligning due to external forces such as vibration and temperature difference during long-term operation. Compared with traditional bolt connection or adhesive method, the plug-in structure has higher assembly consistency and facilitates industrialized batch pre-assembly and rapid on-site assembly.

[0017] 2. Easy disassembly and maintenance: The first mounting platform has mounting screw holes, allowing it to be detachably connected to ceilings, walls, brackets, and other mounting surfaces using standard expansion bolts or screws. Disassembly is simple; just turn the screws. Alternatively, the top of the first mounting platform can be directly glued to the ceiling, wall, bracket, or other mounting surface. Heating the glued surface during disassembly causes the first mounting platform to detach. A limiting component is also designed, threadedly connected to a stud. The limiting component includes a rotating post, a limiting post, and a protrusion. Combined with the through-hole structure of the pipe clamp, on one hand, the limiting post inserts into the through-hole to fix its position; on the other hand, the protrusion blocks the edge of the through-hole, effectively preventing axial slippage of the limiting component due to vibration or thermal expansion and contraction. Furthermore, the threaded connection of the limiting component to the stud allows for easy clamping of the gas pipeline. When it is necessary to clamp the gas pipeline, rotating the rotating part causes the protrusion to contact the gas pipeline. When maintenance or inspection is required, rotating the rotating part moves the protrusion away from the gas pipeline, allowing for disassembly of the docking assembly and enabling regular inspection and replacement maintenance operations.

[0018] 3. Possesses buffering and energy absorption properties and corrosion resistance, extending service life: The protrusion adopts a hemispherical structure, which can provide a certain deformation space when the component is subjected to external impact or structural deformation, reducing the risk of damage to the main structure; the hemispherical surface is bonded with a flame-retardant neoprene rubber layer or silicone rubber layer, which has good elasticity, oil resistance, weather resistance and corrosion resistance, and is especially suitable for the environment commonly encountered by gas pipelines, effectively extending the service life of the concealed sealing structure and reducing the frequency of maintenance.

[0019] 4. Ventilation function enhances leak detection capability: Ventilation holes are installed on the second installation platform, providing a micro-circulation channel for gas without affecting structural strength. The ventilation hole design allows any small gas leak inside the pipeline to quickly spread to the detectable area along the ventilation holes. Combined with a gas leak alarm, this enables rapid early warning and reduces the probability of accidents. Moreover, the ventilation hole design can simultaneously slow down the accumulation of moisture in the sealed area, preventing condensation or mold growth and ensuring safe use.

[0020] 5. Modular splicing installation, adaptable to different pipe lengths: By setting a male coupling at the front end and a female coupling at the rear end of the first installation platform, multiple docking components can be connected sequentially along the gas pipeline direction; compared with the traditional solution that requires customized length sealing plates, this solution can achieve standard component splicing, flexibly adapt to various concealed sealing environments, and reduce manufacturing costs and installation complexity; the multi-segment snap-fit ​​connection structure can form a continuous closed pipe groove, which has both structural rigidity and segmented maintainability, making it convenient for subsequent inspection or partial dismantling.

[0021] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered part of the inventive subject matter of this disclosure, provided that such concepts do not contradict each other.

[0022] The foregoing and other aspects, embodiments, and features of the teachings of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0023] The accompanying drawings are not drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a structural cross-sectional view of a docking assembly for concealed sealing of a gas pipeline, as described in an embodiment of this application.

[0025] Explanation of icon numbers:

[0026] 1. Insert; 101. First mounting platform; 102. First insertion part; 103. Second insertion part; 2. Stud; 3. Limiting component; 301. Rotating column; 302. Limiting column; 303. Protrusion; 4. Pipe clamp; 5. Connector; 501. Second mounting platform; 502. First receiving part; 503. Second receiving part; 6. Ventilation hole; 7. Mounting plane; 8. Gas pipeline. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this invention pertains.

[0028] The terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0029] In existing technologies, conventional concealed gas pipelines are directly hidden, making them difficult to detect. Once a gas leak occurs, the concealed gas pipeline makes it difficult to locate the leak, or even to know that a gas leak has occurred, making it difficult to deal with in a timely manner and posing a safety hazard.

[0030] In view of this, this utility model embodiment provides a docking assembly for the concealed sealing of a gas pipeline 8, referring to... Figure 1The device includes a plug-in 1 and a connector 5 that are inserted into each other. The plug-in 1 includes a first mounting platform 101 and a first insertion part 102 and a second insertion part 103 located on both sides of the first mounting platform 101. The connector 5 includes a second mounting platform 501 and a first receiving part 502 and a second receiving part 503 located on both sides of the second mounting platform 501. The first receiving part 502 has a first groove that is recessed to fit the outer contour of the first insertion part 102, and the first insertion part 102 is inserted into the first groove. The second receiving part 503 has a second groove that is recessed to fit the outer contour of the second insertion part 103, and the second insertion part 103 is inserted into the second groove.

[0031] The first groove is adapted to the first insertion part 102, and the second groove is adapted to the second insertion part 103, so that the first insertion part 102 and the second insertion part 103 can be accommodated in the first groove and the second groove respectively, so that the vertical movement of the connector 5 is not affected when the vertical position of the connector 5 is adjusted in the future.

[0032] The center of the first mounting platform 101 is directly opposite the center of the second mounting platform 501. A stud 2 is fixed at the center of both the first mounting platform 101 and the second mounting platform 501. Each stud 2 is threadedly connected to a limiting member 3. The limiting member 3 includes a rotating post 301 threadedly connected to the stud 2. One end of the rotating post 301 has a threaded hole that fits the stud 2. A limiting post 302 is fixed at the end of the rotating post 301 that is not connected to the stud 2. The diameter of the limiting post 302 is smaller than the diameter of the rotating post 301. A protrusion 303 is fixed at the end of the limiting post 302 that is not connected to the rotating post 301. The area of ​​the end of the protrusion 303 facing the limiting post 302 is larger than the area of ​​the circular surface of the limiting post 302. A pipe clamp 4 is arranged between the first installation platform 101 and the second installation platform 501. The pipe clamp 4 has two through holes facing each other. The diameter of the through hole is larger than the diameter of the limiting post 302 and smaller than the diameter of the rotating post 301. The area of ​​the through hole is smaller than the area of ​​the end of the protrusion 303 facing the limiting post 302. One through hole is sleeved on the limiting post 302 and surrounds the limiting post 302 in the limiting member 3 connected to the stud 2 on the first installation platform 101. The other through hole is sleeved on the limiting post 302 and surrounds the limiting post 302 in the limiting member 3 connected to the stud 2 on the second installation platform 501.

[0033] In use, the gas pipe 8 is placed inside the pipe clamp 4, where the inner diameter of the clamp 4 is larger than the outer diameter of the gas pipe 8. Then, by rotating the rotating part of the limiting member 3 connected to the stud 2 on the first mounting platform 101 and the rotating part of the limiting member 3 connected to the stud 2 on the second mounting platform 501, both protrusions 303 are brought into contact with the outer contour of the gas pipe 8, thus achieving fixation. Generally, the rotating part of the limiting member 3 connected to the stud 2 on the first mounting platform is rotated first, so that the protrusion 303 contacts the gas pipe 8. Then, the rotating part of the limiting member 3 connected to the stud 2 on the second mounting platform 501 is rotated for adjustment. When the rotating part of the limiting member 3 connected to the stud 2 on the second mounting platform 501 rotates, it causes the connector 5 to move up and down, causing the depths of the first insertion part 102 and the second insertion part 103 in the first and second grooves to change accordingly. Once both protrusions 303 are in contact with the outer contour of the gas pipe 8, the gas pipe 8 is fixed.

[0034] In some embodiments, the first insertion part 102 and the second insertion part 103 are parallel to each other, and the angle between the first insertion part 102, the second insertion part 103 and the first mounting platform 101 is 90°.

[0035] The vertical design of the first insertion part 102 and the second insertion part 103 with the first mounting platform 101 ensures structural symmetry, improves directional identification and installation convenience during the insertion process, and enhances the structural balance and insertion strength of the overall docking components. During production, it is conducive to modular batch design, improves the uniformity of stress, and reduces wear and deformation caused by off-center loading or misalignment.

[0036] In some embodiments, the protrusion 303 is hemispherical, and the circular surface of the protrusion 303 is fixed to the end of the limiting post 302 that is not connected to the rotating post 301. The hemispherical surface of the protrusion 303 is close to the tube clamp 4.

[0037] The hemispherical structure has the characteristic of dispersing force. When the structure is subjected to external force, the protrusion 303 can buffer the force, playing a buffering and protective role against structural impact and extrusion, and avoiding wear and displacement caused by rigid contact. Moreover, the circular surface area of ​​the protrusion 303 is larger than the area of ​​the through hole on the pipe clamp 4, which can prevent the protrusion 303 from being pushed out of the pipe clamp 4, so that the limiting post 302 is always surrounded by the through hole of the pipe clamp 4, thereby realizing the movement of the limiting post 302 on the pipe clamp 4, enhancing the limiting effect and preventing axial sliding.

[0038] In some embodiments, at least one corrosion-resistant buffer layer is adhered to the hemispherical surface.

[0039] The corrosion-resistant buffer layer is in direct contact with the outer contour of the gas pipeline 8. This layer provides an elastic deformation zone to absorb impact forces; it also provides surface protection, preventing the penetration of moisture and corrosive gases, thus improving the structure's durability over long-term use; it enhances environmental adaptability, making it suitable for humid or corrosive environments in sealed locations. It also reduces the impact of wear and thermal expansion on the gas pipeline 8.

[0040] In some embodiments, the corrosion-resistant buffer layer is either a flame-retardant neoprene rubber layer or a silicone rubber layer. Both materials possess properties such as flame retardancy, corrosion resistance, aging resistance, and good elasticity, making them suitable for safety scenarios related to gas pipelines, improving fire safety, extending component lifespan, and reducing maintenance frequency.

[0041] In some embodiments, at least one ventilation hole 6 is provided on the second mounting platform 501, penetrating the upper and lower surfaces of the second mounting platform 501, and the ventilation hole 6 is located away from the fixing position of the stud 2 on the second mounting platform 501.

[0042] In the event of a minor gas leak inside the pipeline, the gas can quickly diffuse along the vent 6 to the detectable area. Combined with a gas leak alarm, this allows for rapid early warning, reducing the probability of accidents. Furthermore, the design of the vent 6 simultaneously slows down moisture accumulation in the sealed area, preventing condensation or mold growth and ensuring safe operation. The vent 6 avoids the installation area of ​​the stud 2, ensuring structural integrity and providing a gas exchange channel without compromising structural strength. Leaked gas can be led out and detected through the vent 6, enhancing safety and facilitating timely detection of gas leaks.

[0043] In some embodiments, the first mounting platform 101 has at least one mounting screw hole that penetrates the upper and lower surfaces of the first mounting platform 101, for detachably connecting the first mounting platform 101 to the mounting plane 7 near the gas pipeline 8.

[0044] Mounting surface 7 refers to the mounting surface such as ceiling, wall, or bracket. The first mounting platform 101 is equipped with mounting screw holes, allowing it to be detachably connected to the mounting surface 7 using standard expansion bolts or screws. Disassembly is achieved by turning the screws. Besides using bolts or screws for detachable mounting to the mounting surface 7, the top of the first mounting platform 101 can also be directly glued to the mounting surface 7 using adhesive. Disassembly is achieved by heating the glued surface, causing the first mounting platform 101 to detach. Using adhesive to glue the top of the first mounting platform 101 to the mounting surface 7 is suitable for environments where the adhesive's melting temperature is compatible. When the ambient temperature is below the adhesive's melting temperature, this method is more efficient than using bolts or screws for detachable mounting to the mounting surface 7; when the ambient temperature is above the adhesive's melting temperature, using bolts or screws for detachable mounting to the mounting surface 7 is safer.

[0045] In some embodiments, the direction of forward flow of gas in the gas pipeline 8 is defined as the front. The first mounting platform 101 has a male buckle protruding outward in the front direction and a female buckle recessed in the rear direction. When the length of the gas pipeline 8 to be sealed is greater than the length of the first mounting platform 101 in the front and rear directions, multiple docking components for sealing the gas pipeline 8 are sequentially snapped together, wherein the male buckle of the previous docking component is snapped into the female buckle of the next docking component.

[0046] When the gas pipeline 8 is long, it can be flexibly assembled according to its actual length. After the first docking component is installed, the next component is first docked using a snap-fit ​​connection, and then connected to the mounting plane 7. Multiple docking components are sequentially snap-fitted together, using a mechanical snap-fit ​​method to connect multiple modules, forming a continuous structure. The modules are interlocked and can be fixed without the use of additional fasteners. The connection between the first mounting part and the mounting plane 7 enables the installation of multiple docking components. Modular design avoids the waste of resources caused by customizing a large structure at once, and it is convenient to disassemble and maintain, reducing installation and operation and maintenance costs. In some embodiments, it is not necessary to install docking components continuously; an appropriate number of docking components can be used at appropriate locations, further reducing installation and operation and maintenance costs.

[0047] In summary, the present invention provides a connecting component for the concealed sealing of a gas pipeline 8, which offers convenient and reliable structural connection: the first insertion part 102 and the second insertion part 103 of the plug 1 are respectively inserted into the first groove and the second groove of the connector 5, forming a stable positioning fit in the structure. This effectively prevents the sealed structure of the gas pipeline 8 from loosening or misaligning due to external forces such as vibration and temperature difference during long-term operation. Compared with traditional bolt connections or adhesive methods, the plug-in structure has higher assembly consistency, facilitating industrialized batch pre-assembly and rapid on-site assembly. Disassembly is convenient and facilitates later maintenance: the first mounting platform 101 is provided with mounting screw holes, allowing it to be detachably connected to ceilings, walls, brackets, and other mounting surfaces using standard expansion bolts or screws. Disassembly can be performed by turning the screws; alternatively, the top of the first mounting platform 101 can be directly glued to ceilings, walls, brackets, and other mounting surfaces, and disassembly can be performed by heating the adhesive surface to detach the first mounting platform 101. A limiting component 3 is also designed, which is threadedly connected to the stud 2. The limiting component 3 includes a rotating post 301, a limiting post 302, and a protrusion 303. Combined with the through hole structure of the pipe clamp 4, on the one hand, the limiting post 302 enters the through hole to form a fixed position; on the other hand, the protrusion 303 blocks the edge of the through hole, effectively preventing the axial slippage of the limiting component 3 due to vibration or thermal expansion and contraction. Furthermore, the limiting component 3 is threadedly connected to the stud 2. When it is necessary to clamp the gas pipeline 8, rotating the rotating part makes the protrusion 303 contact the gas pipeline 8. When maintenance or inspection is required, rotating the rotating part makes the protrusion 303 move away from the gas pipeline 8, thereby disassembling the docking assembly and realizing regular inspection and replacement maintenance operations. With buffering and energy absorption properties and corrosion resistance, extending service life: The protrusion 303 adopts a hemispherical structure, which can provide a certain deformation space when the component is subjected to external impact or structural deformation, reducing the risk of damage to the main structure; the hemispherical surface is bonded with a flame-retardant neoprene rubber layer or silicone rubber layer, which has good elasticity, oil resistance, weather resistance and corrosion resistance, especially suitable for the environment commonly encountered by gas pipelines 8, effectively extending the service life of the concealed structure and reducing the frequency of maintenance. With ventilation function, improving leak detection capability: Ventilation holes 6 are set on the second installation platform 501, which can provide a gas micro-circulation channel without affecting the structural strength; the design of ventilation holes 6 allows the gas to quickly diffuse to the detectable area in the event of a small gas leak inside the pipeline, which can be combined with a gas leak alarm to achieve rapid early warning and reduce the probability of accidents; moreover, the design of ventilation holes 6 can also slow down the accumulation of moisture in the concealed area, prevent condensation or mold, and ensure safe use.Modular splicing installation adaptable to different pipe lengths: By setting a male coupling at the front end and a female coupling at the rear end of the first installation platform 101, multiple docking components can be connected sequentially along the 8 directions of the gas pipeline; compared with the traditional solution that requires customized length sealing plates, this solution can achieve standard component splicing, flexibly adapt to various concealed sealing environments, and reduce manufacturing costs and installation complexity; the multi-segment snap-fit ​​connection structure can form a continuous closed pipe groove, which has both structural rigidity and segmented maintainability, making it convenient for subsequent inspection or partial dismantling.

[0048] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A connection assembly for concealed sealing of gas pipelines, characterized in that, The device includes a plug-in and a connector that can be inserted into each other. The plug-in includes a first mounting platform and a first insertion part and a second insertion part located on both sides of the first mounting platform. The connector includes a second mounting platform and a first receiving part and a second receiving part located on both sides of the second mounting platform. The first receiving part has a first groove that adapts to the outer contour of the first insertion part, and the first insertion part is inserted into the first groove. The second receiving part has a second groove that adapts to the outer contour of the second insertion part, and the second insertion part is inserted into the second groove. The center of the first mounting platform is directly opposite the center of the second mounting platform. A stud is fixed to the center of each mounting platform. Each stud is threadedly connected to a limiting component. The limiting component includes a rotating post threadedly connected to the stud, with one end of the rotating post having a threaded hole that fits the stud. A limiting post is fixed to the end of the rotating post not connected to the stud, and the diameter of the limiting post is smaller than the diameter of the rotating post. A protrusion is fixed to the end of the limiting post not connected to the rotating post, and the area of ​​the protrusion facing the limiting post is larger than the area of ​​the circular surface of the limiting post. A pipe clamp is arranged between the first mounting platform and the second mounting platform. The pipe clamp has two opposing through holes. The diameter of the through hole is larger than the diameter of the limiting post and smaller than the diameter of the rotating post. The area of ​​the through hole is smaller than the area of ​​the end of the protrusion facing the limiting post. One of the through holes surrounds the limiting post in the limiting member connected to the stud on the first mounting platform, and the other through hole surrounds the limiting post in the limiting member connected to the stud on the second mounting platform.

2. The connection assembly for concealed sealing of gas pipelines according to claim 1, characterized in that, The first insertion part and the second insertion part are parallel to each other, and the angle between the first insertion part, the second insertion part and the first mounting platform is 90°.

3. The connection assembly for concealed sealing of gas pipelines according to claim 1, characterized in that, The protrusion is hemispherical, and the circular surface of the protrusion is fixed to the end of the limiting post that is not connected to the rotating post. The hemispherical surface of the protrusion is close to the tube clamp.

4. A connection assembly for concealed sealing of gas pipelines according to claim 3, characterized in that, At least one corrosion-resistant buffer layer is bonded to the hemispherical surface.

5. A connection assembly for concealed sealing of gas pipelines according to claim 4, characterized in that, The corrosion-resistant buffer layer is one of flame-retardant chloroprene rubber or silicone rubber.

6. A connection assembly for concealed sealing of gas pipelines according to claim 1, characterized in that, The second mounting platform has at least one ventilation hole that penetrates the upper and lower surfaces of the second mounting platform, and the ventilation hole is located away from the fixing position of the stud on the second mounting platform.

7. A connection assembly for concealed sealing of gas pipelines according to claim 1, characterized in that, The first mounting platform has at least one mounting screw hole that penetrates the upper and lower surfaces of the first mounting platform, for detachably connecting the first mounting platform to the mounting plane near the gas pipeline.

8. A connection assembly for concealed sealing of gas pipelines according to claim 7, characterized in that, The forward flow direction of gas in the gas pipeline is defined as the front. The first installation platform has a male buckle protruding outward in the front direction and a female buckle recessed in the rear direction. When the length of the gas pipeline to be sealed is greater than the length of the first installation platform in the front and rear directions, multiple docking components for sealing the gas pipeline are sequentially snapped together, wherein the male buckle of the previous docking component is snapped into the female buckle of the next docking component.

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