CN217003604U - Steel-plastic adapter for corrosion-resistant gas pipeline - Google Patents
Steel-plastic adapter for corrosion-resistant gas pipeline Download PDFInfo
- Publication number
- CN217003604U CN217003604U CN202123427877.3U CN202123427877U CN217003604U CN 217003604 U CN217003604 U CN 217003604U CN 202123427877 U CN202123427877 U CN 202123427877U CN 217003604 U CN217003604 U CN 217003604U
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- steel
- fixedly connected
- gas pipeline
- plastic
- anticorrosive
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Abstract
The utility model discloses a steel-plastic adapter for an anticorrosive gas pipeline, which comprises a polyethylene plastic pipe fitting, a fixed sleeve and a metal lining member, wherein one side of the polyethylene plastic pipe fitting is fixedly connected with a threaded connecting part, the outer surface of the threaded connecting part is provided with first threads, the outer surface of the polyethylene plastic pipe fitting is fixedly connected with a first limiting ring, one side of the first limiting ring is fixedly connected with a first sealing gasket, one side of the fixed sleeve is provided with a threaded connecting port, the inside of the threaded connecting port is provided with second threads, the other side of the fixed sleeve is fixedly connected with a fixed ring, the outer surface of the metal lining member is provided with a PEX heat shrinkable sleeve, one side of the metal lining member is fixedly connected with a second limiting ring, and one side of the second limiting ring is fixedly connected with a second sealing gasket. According to the utility model, the PEX heat shrinkable sleeve is arranged, so that the corrosion resistance of the metal lining part is improved, and the service life of the steel-plastic adapter is prolonged.
Description
Technical Field
The utility model relates to the technical field of pipeline connecting pieces, in particular to a steel-plastic adapter for an anticorrosive gas pipeline.
Background
At present, in the field of fluid transportation such as gas, metal pipelines such as steel pipes and Polyethylene (PE) plastic pipelines are commonly used, wherein the metal pipelines are commonly used for medium-high pressure fluid transportation, and the plastic pipelines are commonly used for low-pressure fluid transportation; furthermore, for safety reasons, the state-related engineering code states that plastic pipes are not allowed to directly enter the end of the pipe, the user's room. Therefore, Polyethylene (PE) steel-plastic crossover joints are often used when high pressure pipes are transitioned to low pressure pipes and plastic pipes are routed from the yard pipe network to the home.
The Polyethylene (PE) pipeline has outstanding corrosion resistance, the design service life can be as long as 50 years, the self corrosion resistance of the steel pipe end of the steel-plastic adapter matched with the Polyethylene (PE) pipeline can not meet the requirement of the Polyethylene (PE) pipeline, and the steel-plastic adapter is mostly embedded in the wet underground or exposed in the air, so the requirement on corrosion resistance is very high, and the conventional steel-plastic adapter is complex in structure and easy to separate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides a steel-plastic adapter for an anti-corrosion gas pipeline.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an anticorrosive is steel for gas pipeline to mould crossover sub, includes polyethylene plastic pipe spare, fixed cover, the interior bush piece of metal, one side fixedly connected with threaded connection portion of polyethylene plastic pipe spare, the first spacing ring of outer fixed surface of polyethylene plastic pipe spare is connected with, one side of fixed cover is provided with the threaded connection mouth, the solid fixed ring of opposite side fixedly connected with of fixed cover, one side fixedly connected with second spacing ring of the interior bush piece of metal.
As a further description of the above technical solution:
the outer surface of the threaded connection portion is provided with a first thread.
As a further description of the above technical solution:
one side fixedly connected with first sealed pad of first spacing ring.
As a further description of the above technical solution:
and a second thread is arranged in the threaded connecting port.
As a further description of the above technical solution:
and a second sealing gasket is fixedly connected to one side of the second limiting ring.
As a further description of the above technical solution:
the outer surface of the metal lining piece is provided with a PEX heat shrinkage sleeve.
The utility model has the following beneficial effects:
1. compared with the prior art, the steel-plastic adapter for the anticorrosive gas pipeline has the advantages that the PEX heat shrinkage sleeve is arranged, the corrosion resistance of the metal lining part is improved, and the service life of the steel-plastic adapter is prolonged.
2. Compared with the prior art, this crossover sub is moulded to steel for anticorrosive gas pipeline inserts the interior bush spare of metal from the threaded connection mouth department of fixed cover, fixes the polyethylene plastic pipe spare with the interior bush spare of metal with the threaded connection portion and the fixed cover threaded connection of polyethylene plastic pipe spare again, and the installation is simple, combines firmly, compressive capacity is strong.
Drawings
FIG. 1 is an external view of a steel-plastic crossover joint for an anti-corrosion gas pipeline according to the present invention;
fig. 2 is an appearance view of a polyethylene plastic pipe of the steel-plastic crossover joint for the anti-corrosion gas pipeline, which is provided by the utility model;
FIG. 3 is a side view of the fixing sleeve of the steel-plastic crossover sub for the anti-corrosion gas pipeline according to the present invention;
FIG. 4 is another side view of the fixing sleeve of the steel-plastic crossover sub for the corrosion-resistant gas pipeline according to the present invention;
FIG. 5 is an external view of a metal lining member of the steel-plastic crossover sub for the corrosion-resistant gas pipeline according to the present invention;
fig. 6 is a structural view of a metal lining member of the steel-plastic adapter for the corrosion-resistant gas pipeline according to the present invention.
Illustration of the drawings:
1. polyethylene plastic tubing; 2. fixing a sleeve; 3. a metal lining member; 4. a first limit ring; 5. a first gasket; 6. a first thread; 7. a threaded connection; 8. a second thread; 9. a threaded connector; 10. a fixing ring; 11. a second gasket; 12. a second stop collar; 13. PEX heat shrinkable sleeve.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1-6, one embodiment of the present invention is provided: the utility model provides an anticorrosive is steel for gas pipeline to mould crossover sub, includes polyethylene plastic pipe fitting 1, fixed cover 2, the interior bush fitting of metal 3, one side fixedly connected with threaded connection portion 7 of polyethylene plastic pipe fitting 1, the first spacing ring 4 of outer fixed surface of polyethylene plastic pipe fitting 1 is connected with, one side of fixed cover 2 is provided with threaded connection mouth 9, the solid fixed ring 10 of opposite side fixedly connected with of fixed cover 2, one side fixedly connected with second spacing ring 12 of the interior bush fitting of metal 3.
The outer surface of the threaded connection part 7 is provided with a first thread 6, one side of the first limiting ring 4 is fixedly connected with a first sealing gasket 5, the first sealing gasket 5 is arranged to prevent gas leakage at the joint of the polyethylene plastic pipe fitting 1 and the fixed sleeve 2 and improve the sealing performance of the polyethylene plastic pipe fitting, a second thread 8 is arranged inside the threaded connection port 9, a second sealing gasket 11 is fixedly connected to one side of the second limiting ring 12, the second sealing gasket 11 is arranged to prevent gas leakage at the joint of the metal lining member 3 and the fixed sleeve 2 and improve the sealing performance of the metal lining member, the outer surface of the metal lining member 3 is provided with a PEX heat shrinkable sleeve 13, the corrosion resistance of the metal lining member 3 is improved by the PEX heat shrinkable sleeve 13, and the service life of the conversion joint is prolonged.
The working principle is as follows: this crossover sub is moulded to anticorrosive steel for gas pipeline, when using, insert 3 one side in the metal from the threaded connection mouth 9 end of fixed cover 2, make it can not drop through the second spacing ring 12 of the interior backing part 3 of metal and the solid fixed ring 10 of fixed cover 2, twist the threaded connection mouth 9 of fixed cover 2 with the threaded connection portion 7 of polyethylene plastic pipe spare 1 one end again, carry out threaded connection, extrude the interior backing part 3 of metal simultaneously and fix it.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides an anticorrosive is steel for gas pipeline and is moulded crossover sub, includes polyethylene plastic pipe spare (1), fixed cover (2), the interior welt fitting of metal (3), its characterized in that: one side fixedly connected with threaded connection portion (7) of polyethylene plastic pipe fitting (1), the outer fixed surface of polyethylene plastic pipe fitting (1) is connected with first spacing ring (4), one side of fixed cover (2) is provided with threaded connection mouth (9), the solid fixed ring (10) of opposite side fixedly connected with of fixed cover (2), one side fixedly connected with second spacing ring (12) of metal lining spare (3).
2. The steel-plastic adapter for the anticorrosive gas pipeline according to claim 1, characterized in that: the outer surface of the threaded connection part (7) is provided with a first thread (6).
3. The steel-plastic adapter for the anticorrosive gas pipeline according to claim 1, characterized in that: one side of the first limiting ring (4) is fixedly connected with a first sealing gasket (5).
4. The steel-plastic adapter for the anticorrosive gas pipeline according to claim 1, characterized in that: and a second thread (8) is arranged in the threaded connecting port (9).
5. The steel-plastic adapter for the anticorrosive gas pipeline according to claim 1, characterized in that: one side of the second limiting ring (12) is fixedly connected with a second sealing gasket (11).
6. The steel-plastic adapter for the anticorrosive gas pipeline according to claim 1, characterized in that: the outer surface of the metal lining piece (3) is provided with a PEX heat shrinkage sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123427877.3U CN217003604U (en) | 2021-12-31 | 2021-12-31 | Steel-plastic adapter for corrosion-resistant gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123427877.3U CN217003604U (en) | 2021-12-31 | 2021-12-31 | Steel-plastic adapter for corrosion-resistant gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217003604U true CN217003604U (en) | 2022-07-19 |
Family
ID=82389518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123427877.3U Active CN217003604U (en) | 2021-12-31 | 2021-12-31 | Steel-plastic adapter for corrosion-resistant gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217003604U (en) |
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2021
- 2021-12-31 CN CN202123427877.3U patent/CN217003604U/en active Active
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