CN201281197Y - Pipe with thread - Google Patents
Pipe with thread Download PDFInfo
- Publication number
- CN201281197Y CN201281197Y CNU2008201658634U CN200820165863U CN201281197Y CN 201281197 Y CN201281197 Y CN 201281197Y CN U2008201658634 U CNU2008201658634 U CN U2008201658634U CN 200820165863 U CN200820165863 U CN 200820165863U CN 201281197 Y CN201281197 Y CN 201281197Y
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- China
- Prior art keywords
- metal insert
- pipe body
- metal
- plastic pipe
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a threaded pipe fitting, which relates to the field of cold and hot water supply pipelines, and is used to connect pipe bodies in household pipelines. The pipe fitting comprises a plastic pipe body and a metal insert with a screw thread, the metal insert is inserted into one end of the plastic pipe body, wherein, the periphery at the end part of one end of the plastic pipe body into which the metal insert is inserted is also provided with a metal retainer ring, and the plastic pipe body, the metal insert and the metal retainer ring form into a whole by injection molding. In order to enhance the leak tightness, a sealing ring can be arranged between interfaces of the plastic pipe body and the metal insert. The utility model effectively solves the problem of water leakage from gaps between the interfaces of the plastic pipe body and the metal insert caused by characteristics of the molecular structure of PB material. Moreover, the sealing ring is injection-molded on an interface line, thereby forming the second line of defense for sealing. The utility model has advantages of convenient connection and very reliable leak tightness.
Description
Technical field
The utility model relates to cold and hot feedwater piping field, relates in particular to a kind of house ornamentation pipeline that is used for and work the band fiber tube spare that connects usefulness between body.
Background technique
Over past ten years, new type plastic pipe with hot molten characteristic, become and replaced the main tubing that Coating Steel Pipe is used for the cold and hot feedwater piping of building industry and residential project, especially three type atactic copolymerized polypropene (PP-R) tubing, the popularization and application basically in the whole nation, but in all plastic tubes, the cold short performance of PP-R tubing is the poorest, using under the environment below-10 ℃, PP-R tubing is easy to generate embrittlement, thereby has a strong impact on this tubing applying at a northern band or severe cold season.As everyone knows, the physical and chemical performance and the mechanical property of polybutylene (PB) tubing are best, the king who is rated as plastics with melting behaviour, especially to some Important Project projects, PP-R tubing untouchability, and adopt Stainless Steel Tube or copper pipe engineering cost high, just showed optimal selection from cost performance angle polybutylene (PB) tubing, according to market demand trend, polybutylene (PB) tubing obtains people's application gradually and affirms, and the trend that replaces PP-R tubing is arranged.
Yet why this polybutylene (PB) tubing can not form fast apply, problem is just for pipe fitting.Pipe fitting is called the link of tubing again.Whole tubing, the connection between tubing and the tubing is with regard to the tube part.The Placement of pipe fitting and tubing is mainly by two kinds, just not saying a kind of be that hot melt connects temporarily; Another kind is exactly to be threaded, and the plastic tube self with hot molten characteristic can not directly have screw thread, is by the chimeric metal insert of plastics inner, promptly is threaded the metal of structure, is entrenched in molding and forming in the plastics.The band fiber tube spare of prior art, the interface of metal insert and plastics can not form good applying.Its reason is that polybutylene (PB) self raw material have the specific molecule structure, this PB raw material are in molding and forming, the quality utmost point unstability at initial stage after crystallization process and the crystallization, even in the two weeks after molding and forming, plastics also can constantly outwards expand, cause the metal insert surface that is entrenched in plastic tube body inside and the interface between the plastic cover well not to fit, the root of Here it is percolating water.
Popular says, it is easy to produce PB tubing, and prior art can not effectively solve the sealing of PB band fiber tube spare, i.e. leakage problem, and this has become the bottleneck that restriction polybutylene (PB) tubing is applied.
The model utility content
In view of this, technical problem to be solved in the utility model is: a kind of reasonable in design, band fiber tube spare that can effectively solve sealing problem between plastic tube body and the metal insert is provided.
In order to achieve the above object, the utility model adopts following technological scheme to realize:
A kind of band fiber tube spare, comprise plastic tube body and threaded metal insert, the chimeric metal insert of stating to some extent in described plastic tube body one end, wherein, described plastic tube body is chimeric to have the periphery, end of an end of metal insert also to be provided with the metal collar, and described plastic tube body, metal insert and described metal collar are molding and forming together.
As preferably, between the interface of described plastic tube body and described metal insert, also be provided with seal ring.
As preferably, the external diameter of described metal collar is 30mm～120mm, and width is 4mm～12mm, and thickness is 0.5mm～2.5mm; The diameter of section of described seal ring is 1.5mm～6mm.
As preferably, the quantity of described seal ring is 1～3.
As preferably, the material of described metal collar is copper or stainless steel.
As preferably, the material of described seal ring is nitrile butadiene rubber, silicone rubber or teflon.
Compared to existing technology, the utility model by in the periphery, end of the chimeric end that metal insert arranged of plastic tube body together injection molding way be provided with the metal collar, limited the expansion of PB plastics, tided over plastic injection-moulded later size amphibolia of PB, thereby effectively solved owing to producing the problem that leaking appears in the gap between the interface of the plastic tube body that molecular structure property caused of PB material and metal insert.And because seal ring is again to be injection-moulded on the parting line, thereby formed the defence line, second road that seals.It is not only easy to connect, and sealing is very reliable.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
In order to make those skilled in the art can further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet accompanying drawing only for reference with the explanation, be not to be used for the utility model is limited.
See also shown in Figure 1, the utility model provides a kind of band fiber tube spare, comprise plastic tube body 1 and threaded metal insert 3, the chimeric metal insert 3 of stating to some extent in described plastic tube body 1 one ends, wherein, described plastic tube body is chimeric to have the periphery, end of an end of metal insert also to be provided with metal collar 2, and described plastic tube body 1, metal insert 3 and described metal collar 2 are molding and forming together.In order to improve sealing, can also between the interface of described plastic tube body 1 and described metal insert 3, seal ring 4 be set.The shape of described seal ring can be round, also can the side of being.Wherein, the external diameter of described metal collar can be 30mm～120mm, and width can be 4mm～12mm, and thickness can be 0.5mm～2.5mm; The diameter of section of described seal ring can be 1.5mm～6mm.As preferably, the quantity of described seal ring is generally 1～3.The material of described metal collar can adopt copper or stainless steel.The material of described seal ring can adopt nitrile butadiene rubber, silicone rubber or teflon.
Technology implementation procedure of the present utility model is: metal collar 2 and the metal insert 3 that packages seal ring 4 in advance are placed on the injection moulding mould single injection-molded respectively.
But the above only is a preferable possible embodiments of the present utility model; be not in order to limit to claim of the present utility model; in actual applications; also has stop valve; ball valves etc. have interior or externally threaded various pipe fittings; as long as the structure of screw thread one end is analogous to the utility model structure, all belong to the protection domain of claim of the present utility model.
Claims (6)
1, a kind of band fiber tube spare, comprise plastic tube body and threaded metal insert, the chimeric metal insert of stating to some extent in described plastic tube body one end, it is characterized in that, described plastic tube body is chimeric to have the periphery, end of an end of metal insert also to be provided with the metal collar, and described plastic tube body, metal insert and described metal collar are molding and forming together.
2, band fiber tube spare as claimed in claim 1 is characterized in that, also is provided with seal ring between the interface of described plastic tube body and described metal insert.
3, band fiber tube spare as claimed in claim 2 is characterized in that, the external diameter of described metal collar is 30mm～120mm, and width is 4mm～12mm, and thickness is 0.5mm～2.5mm; The diameter of section of described seal ring is 1.5mm～6mm.
4, band fiber tube spare as claimed in claim 3 is characterized in that, the quantity of described seal ring is 1～3.
5, as each described band fiber tube spare in the claim 1 to 4, it is characterized in that the material of described metal collar is copper or stainless steel.
6, as each described band fiber tube spare in the claim 2 to 4, it is characterized in that the material of described seal ring is nitrile butadiene rubber, silicone rubber or teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201658634U CN201281197Y (en) | 2008-10-20 | 2008-10-20 | Pipe with thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201658634U CN201281197Y (en) | 2008-10-20 | 2008-10-20 | Pipe with thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281197Y true CN201281197Y (en) | 2009-07-29 |
Family
ID=40928072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201658634U Expired - Fee Related CN201281197Y (en) | 2008-10-20 | 2008-10-20 | Pipe with thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281197Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438316A (en) * | 2013-08-23 | 2013-12-11 | 武汉金牛经济发展有限公司 | Metal insert used for embedded type plastic pipe and provided with sealing ring |
| CN109764199A (en) * | 2017-11-09 | 2019-05-17 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of high-low temperature resistant oil passage connection structure |
-
2008
- 2008-10-20 CN CNU2008201658634U patent/CN201281197Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438316A (en) * | 2013-08-23 | 2013-12-11 | 武汉金牛经济发展有限公司 | Metal insert used for embedded type plastic pipe and provided with sealing ring |
| CN109764199A (en) * | 2017-11-09 | 2019-05-17 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of high-low temperature resistant oil passage connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG JINGYANG WANG JINGBO LIU HEPING Effective date: 20140730 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140730 Address after: 324100, No. 76, pontoon bridge, pontoon bridge, Qinghe town, Jiangshan City, Zhejiang Patentee after: Wang Shaofa Patentee after: Wang Jingyang Patentee after: Wang Jingbo Patentee after: Liu Heping Address before: 324100, Zhejiang province Jiang Qing Lake Village Bridge village head Patentee before: Wang Shaofa |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: WANG JINGYANG WANG JINGBO LIU HEPING Effective date: 20140820 Owner name: ZHEJIANG SANLENG PLASTIC CO., LTD. Free format text: FORMER OWNER: WANG SHAOFA Effective date: 20140820 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140820 Address after: 324100 Zhejiang province Jiangshan City Hushan Street No. 61 Chen Jiaan Patentee after: ZHEJIANG SANLENG PLASTIC CO., LTD. Address before: 324100, No. 76, pontoon bridge, pontoon bridge, Qinghe town, Jiangshan City, Zhejiang Patentee before: Wang Shaofa Patentee before: Wang Jingyang Patentee before: Wang Jingbo Patentee before: Liu Heping |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20151020 |
|
| EXPY | Termination of patent right or utility model |