CN214500344U - Steel-plastic composite steel pipe - Google Patents
Steel-plastic composite steel pipe Download PDFInfo
- Publication number
- CN214500344U CN214500344U CN202120714671.XU CN202120714671U CN214500344U CN 214500344 U CN214500344 U CN 214500344U CN 202120714671 U CN202120714671 U CN 202120714671U CN 214500344 U CN214500344 U CN 214500344U
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- pipe
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- plastic
- steel pipe
- plastic tubing
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Abstract
The utility model relates to a compound steel pipe field, concretely relates to steel is moulded compound steel pipe. The heat insulation plastic pipe comprises a steel pipe, a plastic pipe is fixed in the steel pipe, two ends of the plastic pipe extend to the outside of the steel pipe, an insertion pipe is inserted in the left end of the plastic pipe in a sealing mode, the insertion pipe is fixedly connected with the plastic pipe, the left end of the insertion pipe extends to the outside of the plastic pipe, heat insulation rings are fixedly embedded in the outer edges of the two ends of the plastic pipe, and the heat insulation plastic pipe further comprises a steel lantern ring which is allowed to be sleeved on the steel pipe. The utility model discloses, simple structure, convenient operation, plastic tubing hot melt is connected the back, and the intubate is pegged graft in the plastic tubing, makes steel sleeve and the steel pipe of both sides carry out welded connection simultaneously, can improve the stability of plastic tubing hot melt junction, prevents that the steel-plastic composite pipe from receiving the hot melt junction fracture of plastic tubing behind the radial effort, and it is good to connect stability ability.
Description
Technical Field
The utility model relates to a compound steel pipe field, concretely relates to steel is moulded compound steel pipe.
Background
At present, the polymer is increasingly widely applied to the fields of building water supply, oil and gas transportation and the like as a pipeline material. Such as polyvinyl chloride, polyethylene, polypropylene, chlorinated polyvinyl chloride, cross-linked polyethylene tubing, and the like. The pipelines of the types have the advantages of convenient construction and simple connection, and the transported water is not rusted. However, compared with metal pipes, pure plastic pipes have inferior pressure resistance and heat resistance, and if the pure plastic pipes work at the temperature of more than 70 ℃, the working pressure needs to be greatly reduced so as to keep longer service life, and some pure plastic pipes even can not bear the service temperature. More outstanding is that the ultraviolet resistance and the ageing resistance are poor. With the development of science and technology, people have higher and higher requirements on water pipes for life and industrial production, and the steel-plastic composite pipe is widely applied to the field of building water supply. The metal pipe is used as a framework material to bear the working pressure of fluid, and the plastic pipe is combined on the inner surface of the metal to be used as a protective layer, so that the advantages of the metal material and the plastic material are fully exerted, and the heat resistance, the pressure resistance and the corrosion resistance of the pipeline are improved. However, after the existing steel-plastic composite pipe is connected by hot melting, the stability of the interface is poor, and when the composite pipe is subjected to an acting force, the hot melting joint is easy to crack.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure, convenient to use, compound pipe hot melt connect the back, and compound steel-plastic steel pipe that hot melt junction stability can be good.
In order to realize the purpose, the utility model provides a technical scheme is:
a steel-plastic composite steel pipe comprises a steel pipe body, a plastic pipe is fixed in the steel pipe body, two ends of the plastic pipe body extend to the outside of the steel pipe body, an insertion pipe is inserted in the left end of the plastic pipe body in a sealing mode, the insertion pipe is fixedly connected with the plastic pipe body, the left end of the insertion pipe extends to the outside of the plastic pipe body, heat insulation rings are fixedly embedded in the outer edges of the two ends of the plastic pipe body, and a steel lantern ring allowing the plastic pipe body to be sleeved on the steel pipe body is further included.
Specifically, the plastic pipe is a polypropylene pipe.
Specifically, the heat insulation ring is an asbestos ring.
Specifically, the outer edge of the steel pipe is provided with an annular scribed line corresponding to the end part of the heat insulation ring.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses, simple structure, convenient operation, plastic tubing hot melt is connected the back, and the intubate is pegged graft in the plastic tubing, makes steel sleeve and the steel pipe of both sides carry out welded connection simultaneously, can improve the stability of plastic tubing hot melt junction, prevents that the steel-plastic composite pipe from receiving the hot melt junction fracture of plastic tubing behind the radial effort, and it is good to connect stability ability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of two steel-plastic composite pipes after connection.
Detailed Description
As shown in fig. 1-2, a steel-plastic composite steel pipe comprises a steel pipe 1, a plastic pipe 2 is fixed in the steel pipe 1, the plastic pipe 2 is a polypropylene pipe, two ends of the plastic pipe 2 extend to the outside of the steel pipe 1, an insertion pipe 4 is inserted into the left end of the plastic pipe 2 in a sealing manner, the insertion pipe 4 is fixedly connected with the plastic pipe 2, the left end of the insertion pipe 4 extends to the outside of the plastic pipe 2, heat insulation rings 3 are fixedly embedded on the outer edges of two ends of the plastic pipe 2, the heat insulation rings 3 are asbestos rings, annular scribed lines corresponding to the ends of the heat insulation rings 3 are processed on the outer edge of the steel pipe 1, and a steel lantern ring 5 is further included.
When two steel-plastic composite pipes are connected, the opposite end parts of two plastic pipes 2 are heated to a molten state by the heating ring, then the two steel-plastic composite pipes move relatively, the insertion pipe 4 is inserted into the plastic pipe 2 opposite to the insertion pipe, the molten end faces of the two plastic pipes 2 are close to each other, the molten end parts of the plastic pipes 2 are kept to be cooled under the action of pressure, then the two plastic pipes 2 are connected into a whole, then the steel sleeve 5 is sleeved on the opposite end parts of the two steel pipes 1, the end part of the steel sleeve 5 corresponds to the heat insulation ring 3 on one side of the steel sleeve 5, the end part of the steel sleeve 5 is positioned between the two annular scribed lines on one side of the steel sleeve 5, then the steel sleeve 5 is welded and connected with the steel pipes 1, the heat insulation ring 3 can prevent the plastic pipes 2 from being heated and molten when the steel sleeve 1 is connected with the steel sleeve 5, the plastic pipes 2 can be effectively protected, and under the connecting action of the insertion pipe 4 and the steel sleeve 5, the stability of the joint of the plastic pipes 2 of the two steel-plastic composite pipes is better, and the hot melting joint of the plastic pipes 2 can be effectively prevented from cracking after the steel-plastic composite pipes are subjected to radial acting force.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a compound steel pipe is moulded to steel, includes the steel pipe, its characterized in that, and the steel pipe internal fixation has the plastic tubing, and the plastic tubing both ends extend to the steel outside of pipe, and sealed the pegging graft has the intubate in the plastic tubing left end, intubate and plastic tubing fixed connection, and the intubate left end extends to the plastic tubing outside, inlays on the outer fringe of plastic tubing both ends and is fixed with the heat insulating ring, still including allowing the steel lantern ring of cover on the steel pipe.
2. The steel-plastic composite steel pipe according to claim 1, wherein the plastic pipe is a polypropylene pipe.
3. The steel-plastic composite steel pipe according to claim 1, wherein the heat insulating ring is an asbestos ring.
4. The steel-plastic composite steel pipe according to claim 1, wherein the outer edge of the steel pipe is provided with an annular score line corresponding to the end of the heat insulation ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714671.XU CN214500344U (en) | 2021-04-08 | 2021-04-08 | Steel-plastic composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714671.XU CN214500344U (en) | 2021-04-08 | 2021-04-08 | Steel-plastic composite steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214500344U true CN214500344U (en) | 2021-10-26 |
Family
ID=78202587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120714671.XU Active CN214500344U (en) | 2021-04-08 | 2021-04-08 | Steel-plastic composite steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214500344U (en) |
-
2021
- 2021-04-08 CN CN202120714671.XU patent/CN214500344U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A steel plastic composite steel pipe Effective date of registration: 20220602 Granted publication date: 20211026 Pledgee: Puyang branch of Bank of Zhengzhou Co.,Ltd. Pledgor: Henan Yiyang Pipe Technology Co.,Ltd. Registration number: Y2022980007042 |