CN216344664U

CN216344664U - Sealing device for leakage-proof natural gas pipeline valve

Info

Publication number: CN216344664U
Application number: CN202122931421.4U
Authority: CN
Inventors: 张霖; 龚德洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-19
Anticipated expiration: 2031-11-26

Abstract

The utility model relates to the technical field of natural gas pipeline valves and discloses a sealing device of a leakage-proof natural gas pipeline valve, which comprises a sealing housing unit and a shaft connection seat plate unit connected to the lower end of the sealing housing unit, by arranging a sealing slot at the opening of the housing sealing part of the half housing piece A, fixedly arranging an inserting sealing strip frame at the opening of the housing sealing part of the half housing piece B, and fixedly arranging a rubber sealing strip on the arc surface wall of the arc surface joint connecting part, when the half casing piece A and the half casing piece B are covered on the natural gas pipeline valve, the plugging sealing strip frame is inserted into the sealing slot, so that the sealing performance of the joint of the half casing piece A and the half casing piece B is better, meanwhile, the rubber sealing strip is attached to the natural gas pipeline, the sealing performance of the sealing housing unit is further improved, and the natural gas pipeline valve can be covered in the sealing housing unit in a sealing mode.

Description

Sealing device for leakage-proof natural gas pipeline valve

Technical Field

The utility model relates to the technical field of natural gas pipeline valves, in particular to a sealing device of a leakage-proof natural gas pipeline valve.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The existing pipeline valve for preventing natural gas leakage generally exposes the pipeline valve in the air directly when in use, although the pipeline valve can be normally used, a large amount of impurities can be adhered to the valve after a long time, and the impurities can permeate into the pipeline valve from gaps of the valve, so that the quality of substances in the pipeline can be influenced.

In view of the above problems, the present invention provides a sealing device for a leak-proof natural gas pipeline valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing device of a leakage-proof natural gas pipeline valve, which comprises a sealing cover shell unit and a shaft connection seat plate unit connected to the lower end of the sealing cover shell unit, can seal the valve, and effectively prevents impurities from entering a gap of the valve, thereby solving the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a sealing device of a leakage-proof natural gas pipeline valve comprises a sealing housing unit and a coupling seat plate unit connected to the lower end of the sealing housing unit, wherein the sealing housing unit comprises a half housing piece A and a half housing piece B, and the half housing piece A and the half housing piece B are both provided with a cambered surface joint connecting part and a housing sealing part arranged at the upper end of the cambered surface joint connecting part;

the coupling seat plate unit comprises a sealing seat plate and support shaft plates fixedly welded at two ends of the upper end face of the sealing seat plate, and the support shaft plates are movably coupled with the lower ends of the cambered surface fitting connecting portions.

Preferably, the side surface of the cambered surface joint connecting part is provided with a shaft connecting slotted hole, a rubber sealing strip is fixedly arranged on the cambered surface wall of the cambered surface joint connecting part, and the lower end of the cambered surface joint connecting part is provided with a concave cambered strip groove.

Preferably, a sealing slot is formed at a housing opening of a housing sealing part arranged on the half housing member a, and an insertion block is fixedly welded on the upper end face of the half housing member a.

Preferably, the housing opening of the housing sealing part of the half housing part B is fixedly provided with an inserting sealing strip frame, the upper end face of the half housing part B is fixedly welded with the connecting port block, the upper end face of the connecting port block is provided with a fixing bolt in a threaded manner, and the connecting insertion block is movably inserted into the notch of the connecting port block and is fixed through the fixing bolt.

Preferably, the sealing seat plate member comprises a seat plate body and a semi-cylindrical sealing strip fixedly mounted on the upper end surface of the seat plate body.

Preferably, the support shaft plate comprises a support plate fixedly welded on the upper end surface of the sealing seat plate and a cambered surface welding plate fixedly welded at one end of the support plate, and a shaft column is fixedly welded on the side surface of the support plate and movably inserted in the shaft connecting slot hole.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the sealing device of the leakage-proof natural gas pipeline valve, the sealing slot is formed in the housing opening of the housing sealing part arranged on the half housing piece A, the plug-in sealing strip frame is fixedly arranged at the housing opening of the housing sealing part arranged on the half housing piece B, the rubber sealing strip is fixedly arranged on the arc surface wall of the arc surface joint connecting part, when the half housing piece A and the half housing piece B are covered on the natural gas pipeline valve, the plug-in sealing strip frame is inserted into the sealing slot, so that the sealing performance of the joint of the half housing piece A and the half housing piece B is better, meanwhile, the rubber sealing strip is jointed on the natural gas pipeline, the sealing performance of the sealing housing unit is further improved, and the natural gas pipeline valve can be covered in the sealing housing unit in a sealing mode.

2. The utility model provides a sealing device of a leakage-proof natural gas pipeline valve, which is characterized in that a support plate block welded with an axial column is fixedly welded on a seat plate body, the axial column is movably inserted in an axial connecting groove hole formed in the side surface of an arc surface joint connecting part, and an arc surface welding plate is fixedly welded on the outer wall of a natural gas pipeline, so that the half casing piece A and the half casing piece B are more convenient to open and close, when the half casing piece A and the half casing piece B are covered, a connecting insert block is movably inserted in a groove opening of a connecting groove block and is fixed through a fixing bolt, the covering of the half casing piece A and the half casing piece B is convenient to fix, a semi-cylindrical sealing strip is fixedly arranged on the upper end surface of the seat plate body, a concave arc strip groove is formed at the lower end of the arc surface joint connecting part, and after the half casing piece A and the half casing piece B are covered, the semi-cylindrical sealing strip is attached in the concave arc strip groove for sealing, so that the cambered surface joint connecting part and the seat plate body can be well sealed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a half-shell member A of the present invention;

FIG. 3 is a schematic structural view of a half-shell member B of the present invention;

FIG. 4 is a schematic view of a connection structure between a half casing member A and a half casing member B according to the present invention;

fig. 5 is a schematic structural view of the bearing plate unit of the present invention.

In the figure: 1. a sealing housing unit; 11. a half-shell member A; 111. sealing the slot; 112. connecting the plug blocks; 12. a half-shell member B; 121. inserting a sealing strip frame; 122. connecting a slot block; 123. fixing the bolt; 101. the cambered surface is attached to the connecting part; 1011. a shaft connection slot hole; 1012. a rubber seal strip; 1013. a concave arc groove; 102. a housing sealing portion; 2. a shaft connecting seat plate unit; 21. a sealing seat plate; 211. a seat plate body; 212. a semi-cylindrical sealing strip; 22. supporting a shaft plate; 221. a support plate; 222. welding a plate with a cambered surface; 223. and (4) a shaft column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2 and 5, a sealing device for a leakage-proof natural gas pipeline valve includes a sealing housing unit 1 and a shaft connection seat plate unit 2 connected to a lower end of the sealing housing unit 1, where the sealing housing unit 1 includes a half housing piece a11 and a half housing piece B12, and both the half housing piece a11 and the half housing piece B12 are provided with an arc-shaped joint connection 101 and a housing sealing portion 102 disposed at an upper end of the arc-shaped joint connection 101.

The shaft joint seat plate unit 2 comprises a sealing seat plate 21 and support shaft plates 22 fixedly welded at two ends of the upper end face of the sealing seat plate 21, and the support shaft plates 22 are movably connected with the lower ends of the cambered surface joint connecting portions 101 in a shaft joint mode.

Referring to fig. 2-4, the side of the curved surface joint connection portion 101 is provided with a shaft connection slot 1011, a rubber sealing strip 1012 is fixedly disposed on the curved surface wall of the curved surface joint connection portion 101, and a concave curved groove 1013 is formed at the lower end of the curved surface joint connection portion 101.

A sealing slot 111 is arranged at the cover opening of the cover sealing part 102 arranged on the half cover A11, and an insert block 112 is fixedly welded on the upper end surface of the half cover A11.

A plug-in sealing strip frame 121 is fixedly arranged at a housing opening of a housing sealing part 102 arranged on a half housing piece B12, a connecting port block 122 is fixedly welded on the upper end surface of the half housing piece B12, a fixing bolt 123 is installed on the upper end surface of the connecting port block 122 in a threaded manner, a connecting plug block 112 is movably plugged in a notch of the connecting port block 122 and is fixed through the fixing bolt 123, a sealing slot 111 is formed at a housing opening of the housing sealing part 102 arranged on the half housing piece A11, the plug-in sealing strip frame 121 is fixedly arranged at a housing opening of the housing sealing part 102 arranged on the half housing piece B12, a rubber sealing strip 1012 is fixedly arranged on an arc surface wall of an arc surface joint connecting part 101, when the half housing piece A11 and the half housing piece B12 are covered on a natural gas pipeline valve, the plug-in sealing strip frame 121 is inserted into the sealing slot 111, so that the sealing property of the connecting part of the half housing piece A11 and the half housing piece B12 is better, meanwhile, the rubber sealing strip 1012 is attached to the natural gas pipeline, so that the sealing performance of the sealing housing unit 1 is further improved, and the natural gas pipeline valve can be hermetically covered in the sealing housing unit 1.

Referring to fig. 5, the sealing seat plate 21 includes a seat plate 211 and a semi-cylindrical sealing strip 212 fixedly mounted on the upper end surface of the seat plate 211.

The supporting shaft plate 22 comprises a supporting plate 221 fixedly welded on the upper end face of the sealing seat plate 21 and an arc welding plate 222 fixedly welded on one end of the supporting plate 221, a shaft column 223 is fixedly welded on the side face of the supporting plate 221, the shaft column 223 is movably inserted in the shaft connecting slot 1011, the supporting plate 221 welded with the shaft column 223 is fixedly welded on the seat plate 211, the shaft column 223 is movably inserted in the shaft connecting slot 1011 formed on the side face of the arc surface joint connecting part 101, and the arc welding plate 222 is fixedly welded on the outer wall of the natural gas pipeline, so that the half cover piece A11 and the half cover piece B12 are more convenient to open and close, when the half cover piece A11 and the half cover piece B12 are covered, the connecting insert 112 is movably inserted in the slot opening of the connecting slot opening 122 and is fixed through the fixing bolt 123, the covering and the half cover piece A11 and the half cover piece B12 are convenient to fix, and the half cylindrical sealing strip 212 is fixedly installed on the upper end face of the seat plate 211, and the lower end of the cambered surface joint connecting part 101 is provided with a concave arc groove 1013, and after the half casing piece A11 and the half casing piece B12 are covered, the half-column-shaped sealing strip 212 is jointed in the concave arc groove 1013 for sealing, so that the cambered surface joint connecting part 101 and the seat plate body 211 can be well sealed.

The working principle is as follows: the side of the seat plate body 211 and the cambered surface of the cambered surface welding plate 222 are fixedly welded on the outer wall of the natural gas pipeline, the cambered surface of the cambered surface welding plate 222 is flush with one side of the cambered surface joint connecting portion 101, when the half casing piece A11 and the half casing piece B12 are covered, the connecting insertion block 112 is movably inserted into a notch of the connecting notch block 122 and is fixed through a fixing bolt 123, the inserting sealing strip frame 121 is inserted into the sealing insertion groove 111 to enable the joint of the half casing piece A11 and the half casing piece B12 to have better sealing performance, meanwhile, the rubber sealing strips 1012 are jointed on the natural gas pipeline, the sealing performance of the sealing casing unit 1 is further improved, meanwhile, the two ends of the half-column-shaped sealing strips 212 are fixed at the two ends of the seat plate body 211 and are jointed in the concave arc strip grooves 1013 for sealing, and good sealing can be achieved between the cambered surface joint connecting portion 101 and the seat plate body 211.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealing device of preventing leaking natural gas line valve door, includes sealed housing unit (1) and connects at the coupling bedplate unit (2) of sealed housing unit (1) lower extreme, its characterized in that: the sealing housing unit (1) comprises a half housing piece A (11) and a half housing piece B (12), wherein the half housing piece A (11) and the half housing piece B (12) are respectively provided with an arc surface joint connecting part (101) and a housing sealing part (102) arranged at the upper end of the arc surface joint connecting part (101);

the shaft joint seat plate unit (2) comprises a sealing seat plate (21) and support shaft plates (22) fixedly welded at two ends of the upper end face of the sealing seat plate (21), and the support shaft plates (22) are movably connected with the lower ends of the cambered surface joint connecting portions (101) in a shaft joint mode.

2. A seal for a leak resistant natural gas line valve as defined in claim 1, wherein: the side surface of the cambered surface joint connecting part (101) is provided with a shaft connecting slot hole (1011), the cambered surface wall of the cambered surface joint connecting part (101) is fixedly provided with a rubber sealing strip (1012), and the lower end of the cambered surface joint connecting part (101) is provided with a concave cambered strip groove (1013).

3. A seal for a leak resistant natural gas line valve as defined in claim 1 or 2, wherein: a sealing slot (111) is arranged at the opening of the housing sealing part (102), and an insertion block (112) is fixedly welded on the upper end surface of the half housing piece A (11).

4. A seal for a leak resistant natural gas line valve as defined in claim 3, wherein: the sealing structure is characterized in that an inserting sealing strip frame (121) is fixedly arranged at a housing opening of a housing sealing part (102) arranged on the half housing part B (12), a connecting port block (122) is fixedly welded on the upper end face of the half housing part B (12), a fixing bolt (123) is installed on the upper end face of the connecting port block (122) in a threaded mode, and the connecting insertion block (112) is movably inserted into a groove opening of the connecting port block (122) and is fixed through the fixing bolt (123).

5. A seal for a leak resistant natural gas line valve as defined in claim 1, 2 or 4, wherein: the sealing seat plate member (21) comprises a seat plate body (211) and a semi-cylindrical sealing strip (212) fixedly arranged on the upper end surface of the seat plate body (211).

6. A seal for a leak resistant natural gas line valve as defined in claim 3, wherein: the sealing seat plate member (21) comprises a seat plate body (211) and a semi-cylindrical sealing strip (212) fixedly arranged on the upper end surface of the seat plate body (211).

7. A seal for a leak resistant natural gas line valve as defined in claim 2, wherein: the supporting shaft plate (22) comprises a supporting plate (221) fixedly welded on the upper end face of the sealing seat plate (21) and an arc welding plate (222) fixedly welded at one end of the supporting plate (221), and a shaft column (223) is fixedly welded on the side face of the supporting plate (221), and the shaft column (223) is movably inserted in the shaft connecting groove hole (1011).