CN205504314U - External pressure type steel is moulded changes tube replacement spare - Google Patents
External pressure type steel is moulded changes tube replacement spare Download PDFInfo
- Publication number
- CN205504314U CN205504314U CN201620242796.6U CN201620242796U CN205504314U CN 205504314 U CN205504314 U CN 205504314U CN 201620242796 U CN201620242796 U CN 201620242796U CN 205504314 U CN205504314 U CN 205504314U
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- steel
- pipe
- moulded
- steel pipe
- type steel
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Abstract
The utility model discloses an external pressure type steel is moulded changes tube replacement spare, including plastic tubing and steel pipe, steel pipe's one end periphery is provided with the screw thread district, and go up the interval and is provided with a plurality of seal grooves in the screw thread district, installs O type sealing washer in the seal groove, and inseparable interlude is distinguished in the plastic tubing to steel pipe's screw thread. The utility model discloses a there is not inside rigid support ring in the design of full latus rectum, increased the inside circulation of pipe fitting, has reduced in the past the pressure testing process in the pipe fitting production process, its simple structure, and it is convenient to use, and long service life is applicable to the straight tube of the different specifications of various nominal outside diameters, the production that the conversion was moulded to the bend pipe type steel, has obvious economic benefits and social.
Description
Technical field
This utility model belongs to the combustion gas in buried polyethylene pipe distributing system and the technical field of feedwater pipe fitting, is specifically related to a kind of external-compression type steel and moulds conversion pipe fitting.
Background technology
Development along with city, urbanite water consumption, use gas increase in demand, the water, the installation in letter shoot road that match therewith are essential, owing to relevant national standard specifies, plastic conduit cannot directly access user side, need steel mould conversion pipe fitting to complete water, feed channel is registered one's residence, therefore steel mould conversion pipe fitting be used widely；It is more complicated that conversion pipe fitting manufacturing procedure moulded by conventional steel, uses internal rigid support rings more, have impact on the flow of pipe interior medium to a certain extent.
Summary of the invention
According to the deficiencies in the prior art, it is provided that a kind of simple in construction, it is firm to connect, practical, it is simple to conversion pipe fitting moulded by the external-compression type steel of production.
Technical solutions of the utility model realize by the following method:
Conversion pipe fitting moulded by a kind of external-compression type steel, including plastic tube and steel pipe, the periphery, one end of described steel pipe is provided with threaded area, and described threaded area is arranged at intervals with multiple seal groove, being provided with O RunddichtringO in described seal groove, the threaded area of described steel pipe is interspersed in plastic tube closely.
Preferably, described plastic tube outer wall is set with retaining ring, and plastic tube is fastened further by described retaining ring with steel pipe.
Preferably, the steel pipe of described threaded area lower end is set with spacing collar.
Preferably, the outer wall of described steel pipe and spacing collar is provided with one layer of anticorrosive coat.
Preferably, described threaded area is arranged at intervals with three seal grooves.
Preferably, the internal diameter of described plastic tube is identical with the internal diameter of steel pipe.
Preferably, described plastic tube uses PE to mould pipe, and described steel pipe uses 20# seamless steel pipe.
This utility model beneficial effect:
The pipe fitting that pipe is connected through external pressure is provided with PE after this utility model a kind of steel pipe main body upper end turning external screw thread of offer, solve the steel pipe body segment blanking of conventional various this type pipe fitting, the drawback that segmental machining operation is loaded down with trivial details, pipe fitting uses full-bore design, there is not internal rigid support ring, increase the circulation of inside pipe fitting, decrease the pressure testing operation in conventional pipe fitting production process, its simple in construction, application is convenient, service life is long, it is applicable to the straight tube of various nominal outside diameter different size, the production of conversion moulded by bent-tube boiler steel, there is obvious economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
1 plastic tube, 2 O RunddichtringOs, 3 retaining rings, 4 threaded area, 5 spacing collars, 6 steel pipes, 7 anticorrosive coats, 8 seal grooves.
Detailed description of the invention
Below in conjunction with accompanying drawing, by specific embodiment, technical solutions of the utility model are described further.
nullAs shown in Figure 1，Conversion pipe fitting moulded by a kind of external-compression type steel，Including plastic tube 1 and steel pipe 6，Plastic tube 1 uses PE to mould pipe，PE moulds pipe and to required specification injection molding pipe part or moulds pipe through injection or extrusion by polyethylene mixed ingredients，On lathe, the connection end with steel pipe is processed according to dimensional requirement，Steel pipe 6 uses 20# seamless steel pipe to carry out fixed length cutting，The internal diameter of plastic tube 1 is identical with the internal diameter of steel pipe 6，The periphery, one end of steel pipe 6 is provided with threaded area 4，It is set with spacing collar 5 on the steel pipe 6 of threaded area 4 lower end，Three seal grooves 8 it are arranged at intervals with on threaded area 4，O RunddichtringO 2 is installed in seal groove 8，The threaded area 4 of steel pipe 6 is interspersed in plastic tube 1，And by the retaining ring 3 of plastic tube 1 outer wall suit, plastic tube 1 is fastened further with steel pipe 6，Retaining ring 3 carries out preservative treatment，The outer wall of steel pipe 6 and spacing collar 5 is provided with one layer of anticorrosive coat 7.
During use, the PE that external-compression type steel is moulded conversion pipe fitting moulds pipe end and the employing electric smelting of buried PE pipeline or hot-melt adhesive paste, and steel pipe 6 is integrally welded with the metallic conduit registered one's residence, and conversion moulded by the steel that can complete pipeline, and the medium conveying in buried pipeline registered one's residence.
Can be used for the straight tube of various nominal outside diameter different size by this utility model, the production of conversion moulded by bent-tube boiler steel, the internal diameter that pipe moulded by steel pipe 6 with PE is consistent, full-bore designs, adds the flow of pipe interior medium, reduce pressure operation, its production process is simple, application is convenient, and service life is long, has obvious economic benefit and social benefit.
Claims (8)
1. conversion pipe fitting moulded by an external-compression type steel, including plastic tube (1) and steel pipe (6), it is characterized in that: the periphery, one end of described steel pipe (6) is provided with threaded area (4), multiple seal groove (8) it is arranged at intervals with on described threaded area (4), being provided with O RunddichtringO (2) in described seal groove (8), the threaded area (4) of described steel pipe (6) is interspersed in plastic tube (1) closely.
The most according to claim 1, conversion pipe fitting moulded by a kind of external-compression type steel, it is characterised in that: described plastic tube (1) outer wall is set with retaining ring (3), and plastic tube (1) is fastened further by described retaining ring (3) with steel pipe (6).
Conversion pipe fitting moulded by a kind of external-compression type steel the most according to claim 1 or claim 2, it is characterised in that: it is set with spacing collar (5) on the steel pipe (6) of described threaded area (4) lower end.
The most according to claim 3, conversion pipe fitting moulded by a kind of external-compression type steel, it is characterised in that: the outer wall of described steel pipe (6) and spacing collar (5) is provided with one layer of anticorrosive coat (7).
The most according to claim 1, conversion pipe fitting moulded by a kind of external-compression type steel, it is characterised in that: it is arranged at intervals with three seal grooves (8) on described threaded area (4).
The most according to claim 1, conversion pipe fitting moulded by a kind of external-compression type steel, it is characterised in that: the internal diameter of described plastic tube (1) is identical with the internal diameter of steel pipe (6).
The most according to claim 1, conversion pipe fitting moulded by a kind of external-compression type steel, it is characterised in that: described plastic tube (1) uses PE to mould pipe.
The most according to claim 1, conversion pipe fitting moulded by a kind of external-compression type steel, it is characterised in that: described steel pipe (6) uses 20# seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620242796.6U CN205504314U (en) | 2016-03-28 | 2016-03-28 | External pressure type steel is moulded changes tube replacement spare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620242796.6U CN205504314U (en) | 2016-03-28 | 2016-03-28 | External pressure type steel is moulded changes tube replacement spare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205504314U true CN205504314U (en) | 2016-08-24 |
Family
ID=56733254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620242796.6U Expired - Fee Related CN205504314U (en) | 2016-03-28 | 2016-03-28 | External pressure type steel is moulded changes tube replacement spare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205504314U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084292A (en) * | 2017-06-05 | 2017-08-22 | 河南中久安科技有限公司 | The steel modeling conversion pipe fitting and its sealing technology of a kind of two-way stop of injection molding type |
| CN107956949A (en) * | 2017-12-19 | 2018-04-24 | 山东东宏管业股份有限公司 | Heavy antisepsis combustion gas moulds crossover sub and its manufacture method with steel |
| CN114215988A (en) * | 2021-11-09 | 2022-03-22 | 浙江新大塑料管件有限公司 | Elbow type steel-plastic conversion pipe fitting joint assembly |
-
2016
- 2016-03-28 CN CN201620242796.6U patent/CN205504314U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084292A (en) * | 2017-06-05 | 2017-08-22 | 河南中久安科技有限公司 | The steel modeling conversion pipe fitting and its sealing technology of a kind of two-way stop of injection molding type |
| CN107956949A (en) * | 2017-12-19 | 2018-04-24 | 山东东宏管业股份有限公司 | Heavy antisepsis combustion gas moulds crossover sub and its manufacture method with steel |
| CN107956949B (en) * | 2017-12-19 | 2024-03-29 | 山东东宏管业股份有限公司 | Steel-plastic adapter for heavy-duty gas and manufacturing method thereof |
| CN114215988A (en) * | 2021-11-09 | 2022-03-22 | 浙江新大塑料管件有限公司 | Elbow type steel-plastic conversion pipe fitting joint assembly |
| CN114215988B (en) * | 2021-11-09 | 2023-11-28 | 浙江新大塑料管件有限公司 | Bent pipe type steel-plastic conversion pipe fitting joint assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170328 |