Sealing structure of gas pipeline buried system

Abstract

The utility model discloses a sealing structure of a gas pipeline buried system, comprising: a connecting box, the interior of which is used for connecting a gas pipe; the connecting part is arranged at at least one end of the connecting box; the connecting part comprises a connecting pipe orifice extending inwards or outwards, and the connecting pipe orifice is used for allowing a gas pipe to penetrate through and receiving a socket of a protective sleeve; a plugging structure is arranged in the connecting pipe opening and used for sealing a gap between the outer wall of the gas pipe and the inner wall of the connecting pipe opening and a gap between the inner wall of the protective sleeve and the outer wall of the gas pipe. The plugging structure can be connected with the gas pipe, the protective sleeve and the connecting part at the same time, and gas escape caused by gas leakage in the connecting box or the in-out wall box can be effectively prevented.

Description

Technical Field

[0001] This application relates to the field of gas system technology, and in particular to the sealing structure of buried gas pipeline systems. Background Technology

[0002] Existing household gas appliances, such as stoves and water heaters, typically include a junction box (also called a concealed box), an inlet / outlet wall box, a gas pipe, and a protective sleeve in their concealed gas pipeline systems. The junction box is usually embedded in the wall and houses a valve system, which often includes a manual valve for controlling gas intake and a self-closing valve. The junction box is sealed with a cover plate, and the two ends of the valve system within the junction box are used to connect the gas pipes for gas intake and delivery, respectively. For protection, a protective sleeve is installed over the gas pipe. Generally, the operation of a concealed gas pipeline system is stable. However, if a leak occurs in the connecting pipe body, valve body, or the connection structure between the valve and the pipe within the junction box (or inlet / outlet wall box), the leaked gas will escape through the protective sleeve due to the lack of a good sealing and protection structure in the existing junction box structure. This gas may accumulate at a certain location (such as the bottom or ceiling) and form a combustion and explosion space, posing a safety hazard.

[0003] Therefore, the purpose of this application is to establish an effective sealing structure between the junction box (or wall box), the gas pipe, and the protective sleeve to prevent gas escape caused by gas leakage inside the junction box (or wall box).

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0005] Based on this, this application provides a sealing structure for a gas pipeline burial system to solve one of the aforementioned technical problems.

[0006] The technical solution adopted by this application to solve its technical problem is: a sealing structure for a buried gas pipeline system, including:

[0007] The connection box, whose interior is used to install valve structures and connect gas pipes;

[0008] A connecting part is disposed at at least one end of the connecting box;

[0009] The connection includes an outwardly extending connection port for the gas pipe to pass through and for receiving the protective sleeve.

[0010] A sealing structure is provided inside the connecting pipe opening. The sealing structure is used to seal the gap between the outer wall of the gas pipe and the inner wall of the connecting pipe opening, as well as between the inner wall of the protective sleeve and the outer wall of the gas pipe.

[0011] In some embodiments, the sealing structure is non-removable and is one of an adhesive structure, a welded structure, or a potting structure.

[0012] In some embodiments, the plugging structure is a removable plugging device that is elastic and deformable under pressure.

[0013] In some embodiments, the plugger has a first step and a second step, and the connecting portion has a third step. The first step of the plugger is sealed and fitted on the third step of the connecting portion, and the second step of the plugger is used to seal and fit with the inner wall of the protective sleeve.

[0014] In some embodiments, the plugger further includes an abutment portion, the abutment portion being conical in shape, and an abutment surface being formed at the end region of the abutment portion for sealing against the outer wall of the gas pipe.

[0015] In some embodiments, the occluder is made of nitrile rubber.

[0016] In some embodiments, the connecting part and the connecting box are integrally formed.

[0017] In some embodiments, the connecting part and the connecting box are detachably connected.

[0018] In some embodiments, the connecting box is a stove box for a stove gas delivery system, and both ends of the connecting box are provided with connecting parts.

[0019] In some embodiments, the connecting box is a water heater box for a gas water heater delivery system, and one end of the connecting box is provided with a connecting part.

[0020] The beneficial effects of this application are as follows: the sealing structure can connect the gas pipe, the protective sleeve and the connection part at the same time, which can effectively prevent gas escape caused by gas leakage in the connection box (or inlet / outlet wall box). At the same time, this application can also adapt to some equipment that requires frequent maintenance by setting a detachable sealing structure or set a non-detachable sealing structure to fundamentally prevent the problem of gas escape. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of the installation of this application.

[0023] Figure 2 This is a cross-sectional schematic diagram of the sealing block in this application.

[0024] Figure 3 This is a cross-sectional view of the connection box in this application.

[0025] Figure 4 This is a three-dimensional structural diagram of this application.

[0026] Figure 5 This is a cross-sectional view of the stove box and the wall-mounted access box installation plug of this application.

[0027] Figure 6 This is a cross-sectional view of the water heater box installation plug of this application.

[0028] The following are the reference numerals: 1. Connection box; 11. Stove box; 12. Water heater box; 13. Inlet / outlet wall box; 2. Connection part; 21. Connection pipe port; 22. Third step; 3. Sealing structure; 31. First step; 32. Second step; 33. Abutment part; 4. Gas pipe; 5. Protective sleeve. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0030] In the embodiments of this application, please refer to Figure 1-6 As shown, this application provides a sealing structure for a buried gas pipeline system, mainly including: a connection box 1, which is used to connect a gas pipe 4 inside; a connection part 2, which is disposed at at least one end of the connection box 1; the connection part 2 includes a connection port 21 extending inward or outward, the connection port 21 being used for the gas pipe 4 to pass through and for receiving the socket of the protective sleeve 5; a sealing structure 3 is provided inside the connection port 21, the sealing structure 3 being used to seal the gap between the outer wall of the gas pipe 4 and the inner wall of the connection port 21, and between the inner wall of the protective sleeve 5 and the outer wall of the gas pipe 4.

[0031] Specifically, the sealing structure 3 simultaneously seals the connecting box 1, the protective sleeve 5, and the gas pipe 4, and the sealing structure 3 can be selected as detachable for sealing depending on the usage.

[0032] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0033] Specifically, when it is necessary to permanently seal the sealing structure 3 to ensure its stability and extend its service life, the sealing structure 3 is non-removable and can be one of the following: adhesive structure, welded structure, or potting structure. Adhesive structures can be used to seal the area requiring sealing using various adhesives; for welded structures, considering that the connection box, gas pipe, and protective sleeve are generally made of plastic or rubber, a thermoplastic gun with thermoplastic welding rods can be used for welding; while potting structures are generally not preferred due to their more complex process.

[0034] Specifically, in order to achieve a sealing effect quickly during maintenance, the sealing structure 3 is a detachable plug, which is elastic and can be deformed under pressure.

[0035] Reference Figure 2 As shown, the plug has a first step 31 and a second step 32, and the connecting part 2 has a third step 22. The first step 31 of the plug is sealed and fitted on the third step 22 of the connecting part 2. The second step 32 of the plug is used to seal and fit with the inner wall of the protective sleeve 5. Specifically, the second step 32 can form a U-shaped receiving area with the inner wall of the protective sleeve for connecting the protective sleeve. Under the action of the elastic material, the effectiveness of the seal can be guaranteed.

[0036] Specifically, the plug also includes an abutment portion 33, which is conical in shape. The end region of the abutment portion 33 forms an abutment surface, which is used to seal against the outer wall of the gas pipe 4. The conical design can be adapted to different pipe diameters and plays a guiding role during installation.

[0037] Preferably, the plug is made of nitrile rubber, which has excellent resistance to mineral oil, vegetable oil, animal fat and many other types of oils and fats, making it an ideal material for manufacturing fuel lines, seals and the like.

[0038] In some embodiments, the connecting part 2 and the connecting box 1 are integrally formed.

[0039] In other embodiments, the connecting part 2 and the connecting box 1 are detachably connected. For example, a plug-in connection or a screw connection.

[0040] Starting from the usage scenario, refer to Figure 5As shown, the connecting box 1 is a stove box 11 or an inlet / outlet wall box 13 for a four-way gas pipe system for stoves. When the connecting box is a stove box, both ends of the connecting box 1 are provided with connecting parts 2; however, when the connecting box is an inlet / outlet wall box, only one side of the connecting box is provided with a connecting part 2.

[0041] Reference Figure 6 As shown, the connection box 1 is a water heater box 12 or an inlet / outlet wall box 13 for a gas water heater piping system, and a connection part 2 is provided at one end of the connection box 1.

[0042] Under normal circumstances, it is sufficient to install the sealing structure described in this application inside the stove box or water heater box. However, in order to further improve the sealing reliability, a sealing structure can also be installed inside the wall box.

[0043] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A sealing structure for a gas pipe burying system, characterized by, The utility model relates to a connecting box for connecting gas pipe, comprising: a connecting box for connecting gas pipe; a connecting part arranged at least one end of the connecting box; the connecting part comprises a connecting pipe opening extending inwardly or outwardly, which is used for passing the gas pipe and receiving the socket of the protective sleeve pipe; a sealing structure is arranged in the connecting pipe opening, which is used for sealing the gap between the outer wall of the gas pipe and the inner wall of the connecting pipe opening, and the gap between the inner wall of the protective sleeve pipe and the outer wall of the gas pipe.

2. The sealing structure of the gas pipe embedding system according to claim 1, wherein The sealing structure is one of the following: inseparable, adhesive structure, welding structure and potting structure.

3. The sealing structure of the gas pipe embedding system according to claim 1, wherein The sealing structure is a detachable sealing device, which is elastic and can be deformed under pressure.

4. The sealing structure of the gas pipe embedding system according to claim 3, wherein The sealing device has a first step and a second step, and the connecting part has a third step, the first step of the sealing device is sealed and matched on the third step of the connecting part, and the second step of the sealing device is used for sealing and matching with the inner wall of the protective sleeve pipe.

5. The sealing structure of a gas pipe embedding system according to claim 3 or 4, characterized in that, The sealing device further comprises an abutting part, which is arranged in a conical surface, and the end area of the abutting part is formed with an abutting surface, which is used for sealing and matching with the outer wall of the gas pipe.

6. The sealing structure of a gas pipe embedding system according to claim 3, wherein The material of the sealing device is nitrile rubber.

7. The sealing structure of a gas pipe embedding system according to claim 1, wherein The connecting part and the connecting box are integrally formed.

8. The sealing structure of a gas pipe embedding system according to claim 1, wherein The connecting part and the connecting box are detachably connected.

9. The sealing structure of a gas pipe embedding system according to claim 1, wherein The connecting box is a stove box or an in-out wall box for a stove gas pipe system, and both ends of the connecting box are provided with the connecting part.

10. The sealing structure of a gas pipe embedding system according to claim 1, wherein The connecting box is a water heater box or an in-out wall box for a gas water heater pipe system, and one end of the connecting box is provided with the connecting part.

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