CN1153917C - Joint for metal and plastic pipe and joint method thereof - Google Patents
Joint for metal and plastic pipe and joint method thereof Download PDFInfo
- Publication number
- CN1153917C CN1153917C CNB011389427A CN01138942A CN1153917C CN 1153917 C CN1153917 C CN 1153917C CN B011389427 A CNB011389427 A CN B011389427A CN 01138942 A CN01138942 A CN 01138942A CN 1153917 C CN1153917 C CN 1153917C
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- CN
- China
- Prior art keywords
- tube
- plastic pipe
- plastic tube
- plastic
- connection
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- Expired - Fee Related
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Abstract
The present invention relates to a connection joint for a metal pipe and a plastic pipe and a connection method. The present invention belongs to an improvement of the connection structure and the connection method of two material pipes. At least six circular grooves (4) are arranged on the inner wall of a bell mouth (6) at the end head of the metal pipe (1); at least one O-shaped sealing ring (5) is arranged among the circular grooves. The end head of the plastic pipe (2) is clamped between the inner wall of the bell mouth and the outer wall of a rigid inner expansion pipe (3). The corresponding parts of the plastic pipe and the circular grooves are provided with outer convex rings (7); the corresponding parts of the plastic pipe and the O-shaped sealing rings are provided with concave rings (8). In the connection method, sealing gum (9) is coated in the annular grooves; the O-shaped sealing rings are arranged among the annular grooves; after the connection segments of the plastic pipe are heated to 90 to 93 DEG C, the plastic pipe is extended into the bell mouth; the rigid inner expansion pipe is inserted into the corresponding part of the bell mouth in the plastic pipe. Because multiple sealing grooves are contained and the sealing rings make the connection parts have good sealing performance, the connection joint has the advantages of simple external structure, convenient corrosion prevention and construction, little axial shearing force and good low temperature resistance performance. The connection method is simple and is easy to operate.
Description
Technical field: the improvement that the invention belongs to two kinds of material pipe butt joint linkage structures and its connecting means.
Background technique: it is to adopt flange that folder is connected that existing metal tube is connected with plastic tube, and this Placement exists the site operation difficulty big, tightens the improper damage that easily causes, sealing is poor, easily causes jointing to leak complex geometry, unsuitable anticorrosion, axially shearing force is big, and the joint is fragile.Its connecting means can not guarantee the realistic requirement of the seal of joint.
Summary of the invention: the objective of the invention is to develop the joint that a kind of metal tube is connected with plastic tube, this joint has been cancelled flange, nor with welding, make it to have easy construction, good airproof performance, joint cracky not, its connecting means is provided simultaneously.The present invention comprises metal tube 1, plastic tube 2, it also comprises expand tube 3 in the rigidity, form an abducent flared horn 6 in metal tube 1 end, on the inwall of flared horn 6, have at least six circular grooves 4, be provided with at least one O-ring seals 5 between circular groove 4, the termination of plastic tube 2 is clipped between the outer wall of expand tube 3 in the inwall of flared horn 6 of metal tube 1 and the rigidity.Got into formation outer lug rings 7 in the circular groove 4 with the corresponding position of circular groove 4 by expand tube in the rigidity 3 on the plastic tube 2, on plastic tube 2, be squeezed into pit ring 8 with O-ring seals 5 corresponding parts.Connecting means of the present invention is: sealer 9 is coated in the circular groove 4 of metal tube 1, O-ring seals 5 is placed between the circular groove 4, plastic tube 2 linkage sections are heated in the flared horn 6 that puts in metal tube after 90-93 ℃ again, with the corresponding part of the 3 reeve plastic tubes of expand tube in the rigidity, 2 inside trumpet mouths 6, behind cooling shaping, promptly finished connection.The present invention is because seal groove is many, and there is seal ring to make the good airproof performance of xenogenesis material pipe joint again, leakage phenomenon can not appear, and form structure simply is convenient to anticorrosion construction, the boundary dimension of jointing metal tube is close with other position, so axial shearing force is little, has improved whole Security.Again because two kinds of material pipe joint plastic tubes adopt interference fit, so its lower temperature resistance improves no leakage phenomenon under-35 ℃.Tightness is more than or equal to 1Mpa, and tensile resistence is not less than the tensile force of mother metal itself.It can be widely used in the usefulness of connection of gas pipeline, the fluid pipeline of two kinds of materials.Its connecting means is simple to operation, and the joint after guaranteeing to connect is used for a long time and do not leaked.
Description of drawings: Fig. 1 is an overall structure schematic representation of the present invention, and Fig. 2 is the A place partial enlarged drawing of Fig. 1.
Embodiment one: present embodiment is made up of expand tube 3 in steel pipe 1, plastic tube 2, the rigidity, form an abducent flared horn 6 in steel pipe 1 end, on the inwall of flared horn 6, have eight circular grooves 4, be provided with three O-ring seals 5 between eight circular grooves 4 equally spacedly, the straight termination of plastic tube 2 is clipped between the outer wall of expand tube 3 in the inwall of flared horn 6 of steel pipe 1 and the rigidity.Plastic tube 2 is heated to form molten state with the plastic tube 2 of the corresponding section of expand tube 3 in the rigidity when being connected with metal tube 1, got into formation outer lug rings 7 in the circular groove 4 with the corresponding position of circular groove 4 by expand tube in the rigidity 3 on the plastic tube 2, on plastic tube 2, be squeezed into pit ring 8 with O-ring seals 5 corresponding parts.Outer lug ring 7 places at circular groove 4 and plastic tube 2 scribble sealer 9.
Embodiment two: the difference of present embodiment and embodiment one is the external diameter Φ of plastic tube 2
2Internal diameter Φ greater than horn mouth 6
1Amount be the 1.2-1.5 millimeter.Other composition is identical with embodiment one with annexation.
Embodiment three: present embodiment is that sealer 9 is coated in eight circular grooves 4 of steel pipe 1, two O-ring seals 5 are equidistantly placed between the circular groove 4, the linkage section of plastic tube 2 is heated to 92 ℃ with hot water, put in again in the horn mouth 6 of steel pipe 2 after making this section plastic tube become molten state, with the corresponding part of the horn mouth 6 in the 3 reeve plastic tubes 2 of expand tube in the rigidity, behind cooling shaping, promptly finish connection.
Claims (4)
1, the jointing of metal tube and plastic tube, it comprises metal tube (1), plastic tube (2), it is characterized in that it also comprises expand tube (3) in the rigidity, form an abducent horn mouth (6) in metal tube (1) end, on the inwall of horn mouth (6), have at least six circular grooves (4), between circular groove (4), be provided with at least one O RunddichtringO (5), the termination of plastic tube (2) is clipped between the outer wall of expand tube (3) in the inwall of horn mouth (6) of metal tube (1) and the rigidity, plastic tube (2) go up and the corresponding position of circular groove (4) by rigidity in expand tube (3) get into formation outer lug ring (7) circular groove (4) in, last and O-ring seals (5) corresponding part is squeezed into pit ring (8) at plastic tube (2).
2, the jointing of metal tube according to claim 1 and plastic tube is characterized in that the outer lug ring (7) of circular groove (4) and plastic tube (2) locates to scribble sealer (9).
3, the jointing of metal tube according to claim 1 and 2 and plastic tube is characterized in that the external diameter Φ of plastic tube (2)
2Internal diameter Φ greater than metal tube (1)
1Amount be the 1.2-1.5 millimeter.
4, the connecting means of the jointing of metal tube according to claim 1 and plastic tube, it is characterized in that sealer (9) is coated in the circular groove (4) of metal tube (1), O-ring seals (5) is placed between the circular groove (4), plastic tube (2) linkage section is heated in the horn mouth (6) that puts in metal tube after 90-93 ℃ again, with the corresponding part of expand tube in the rigidity (3) reeve plastic tube (2) inside trumpet mouth (6), behind cooling shaping, promptly finished connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011389427A CN1153917C (en) | 2001-12-25 | 2001-12-25 | Joint for metal and plastic pipe and joint method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011389427A CN1153917C (en) | 2001-12-25 | 2001-12-25 | Joint for metal and plastic pipe and joint method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1358950A CN1358950A (en) | 2002-07-17 |
| CN1153917C true CN1153917C (en) | 2004-06-16 |
Family
ID=4674893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011389427A Expired - Fee Related CN1153917C (en) | 2001-12-25 | 2001-12-25 | Joint for metal and plastic pipe and joint method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153917C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799095A (en) * | 2010-04-09 | 2010-08-11 | 赵启林 | Method for connecting resin-based composite material tube and metal material |
| TWI673224B (en) * | 2018-12-11 | 2019-10-01 | 財團法人工業技術研究院 | Feeding device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100253066A1 (en) * | 2009-04-02 | 2010-10-07 | Victaulic Company | Crimp-Type Coupling, Crimping Tool and Method of Crimping |
| CN104454855B (en) * | 2014-12-04 | 2016-08-24 | 中国科学院工程热物理研究所 | A kind of composite/metal stepped tooth Hybrid connections structure and preparation method thereof |
| WO2016101122A1 (en) * | 2014-12-23 | 2016-06-30 | 梁广仁 | Connection device for thin-wall flexible tube and connection method therefor |
| CN107120284A (en) * | 2017-03-29 | 2017-09-01 | 安徽博古特机电科技有限公司 | A kind of big end cap air-guide rod assembly technology of vehicle-mounted air compressor |
| CN108281733A (en) * | 2018-03-09 | 2018-07-13 | 华霆（合肥）动力技术有限公司 | Flat tube adapter assembly and heating liquid cooling apparatus |
| CN109595410A (en) * | 2018-12-28 | 2019-04-09 | 中国石油天然气集团有限公司 | A kind of on-site connection joint and method for reinforced thermoplastics pipe |
-
2001
- 2001-12-25 CN CNB011389427A patent/CN1153917C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799095A (en) * | 2010-04-09 | 2010-08-11 | 赵启林 | Method for connecting resin-based composite material tube and metal material |
| TWI673224B (en) * | 2018-12-11 | 2019-10-01 | 財團法人工業技術研究院 | Feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1358950A (en) | 2002-07-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |