CN2487938Y - Locking type pipe joint - Google Patents
Locking type pipe joint Download PDFInfo
- Publication number
- CN2487938Y CN2487938Y CN 01245796 CN01245796U CN2487938Y CN 2487938 Y CN2487938 Y CN 2487938Y CN 01245796 CN01245796 CN 01245796 CN 01245796 U CN01245796 U CN 01245796U CN 2487938 Y CN2487938 Y CN 2487938Y
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- China
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- utility
- model
- fittings body
- pipe
- pipe joint
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- Expired - Fee Related
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Abstract
The utility model discloses a locking type pipe joint for quick joint of pipes which comprises a joint body and a compaction nut which is in threaded connection with the joint body, wherein an adapter sleeve which is cylinder-shaped and of which two end parts are conical surfaces is arranged inside the joint body, a front end of the compaction nut and an inner end of the joint body are provided with inclined planes matching with the conical surfaces. The adaptor sleeve can be made of the copper materials. The utility model has the advantages of a simple structure and quick and convenient operations; because the rubber sealing rings are not used in the utility model, the utility model can not be troubled by the ageing and deformation problems; thereby the utility model has long service life, does not cause the secondary pollution and is uneasy to be eroded.
Description
The utility model relates to the pipe joint of a kind of linkage structure of pipe, particularly a kind of quick connection.
In the oil gas pipeline of water supply pipe or industrial use, because of galvanized pipe is eliminated gradually, various novel tubing such as stainless steel composite pipe, aluminium-plastic composite pipe etc. obtain using more and more widely.Because screw thread generally can not be opened in the end of these NEW TYPE OF COMPOSITE tubing, so traditional pipe joint that is threaded can not use.In order to connect composite pipe, people have proposed various pipe connecting structures, and what have has also applied for patent.As " quick coupling " that Chinese patent 97203906.6 provides, it is that end at fittings body has an insertion portion and sleeve pipe, and insertion portion has a plurality of annular grooves, filling O RunddichtringO in the annular groove.The something in common of existing pipe connecting structure is that the sealing between joint and the connecting tube realizes by rubber seal.In actual application, although the inventor finds to adopt rubber seal can reach the purpose of sealing, its working life is not long.This is because rubber seal itself is aging easily and distortion causes.Simultaneously, existing linkage structure is complicated, to the required precision height of installing, occurs poorly sealed and seepage phenomenon in the as installed process easily.
The purpose of this utility model is in order to overcome the problems referred to above, and a kind of locking pipe joint of simple in structure, easy to operate, good seal performance is provided.
For achieving the above object, the utility model has adopted following technical proposal: this locking pipe joint comprises fittings body and the clamping nut that is connected with fittings body by screw thread, be provided with an adapter sleeve in the fittings body, adapter sleeve is a cylindrical shape, its two end part are the conical surface, and there is the inclined-plane that matches with the above-mentioned conical surface the inner of clamping nut front end and fittings body.
It is that material is made that above-mentioned adapter sleeve can adopt red copper.
The utility model is mainly used in some rigidity composite pipes such as stainless steel crosslinked polyethylene composite pipe (abbreviation stainless steel composite pipe), PP-R pipe.During connection, as long as adapter sleeve is inserted in the end of composite pipe, inserts in the fittings body then and tighten clamping nut and get final product.In being screwed into the clamping nut process, fittings body inclined-plane inner and the clamping nut front end can push adapter sleeve, adapter sleeve is constantly shunk, until complete banding composite pipe.Like this, not only joint and composite pipe are connected firmly, and sealing effect is also fine.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the sectional view of this locking pipe joint when being connected with pipe.
Fig. 2 is the sectional view of this locking pipe joint middle joint body.
Fig. 3 is the sectional view of adapter sleeve in this locking pipe joint.
Among the figure, 1, fittings body; 2, clamping nut; 3, adapter sleeve; 4, pipe.
As shown in Figure 1, this locking pipe joint is made up of fittings body 1, clamping nut 2 and adapter sleeve 3.The inboard of fittings body 1 has internal thread, and fittings body 1 is connected with clamping nut 2 by internal thread.Fittings body 1 the inner and clamping nut 2 front ends all have inclined-plane 1b, and the gradient of inclined-plane 1b is consistent with the gradient of adapter sleeve 3 two ends conical surface 3a.Obviously, along with being screwed into of clamping nut 2, clamping nut 2 can make adapter sleeve 3 constantly shrink with the extruding of fittings body 1.
As shown in Figure 3, adapter sleeve 3 employing red coppers are that material is made in the present embodiment.Because red copper has certain ductility, therefore be screwed into continuous contraction of adapter sleeve 3 meetings and extruding pipe 4 in the process at clamping nut 2, will be connected with pipe 4 very securely at last, and reach the degree of sealing fully.The internal diameter of adapter sleeve 3 is general slightly greater than pipe 4 external diameters that connected.
As depicted in figs. 1 and 2, the inner of fittings body 1 also has retaining along 1a.Retaining works to stop pipe 4 along 1a, and the degree of depth that pipe 4 is inserted is suitable.
This locking pipe joint also can be used on the pipe of other type except being applied to rigidity pipes such as stainless steel composite pipe.As be used for the flexible tube period of the day from 11 p.m. to 1 a.m such as aluminium-plastic composite pipe, can connect at the default a bit of passive bushing pipe of its tube end.When pipe is when being threaded, as long as remove adapter sleeve 3.
Compared with prior art, the utlity model has following advantage:
1, this locking formula pipe joint is only organized by fittings body, clamping nut and fastening cover three Become, structure is very simple.
When 2, installing, as long as fastening cover is inserted in tube end, tightens clamping nut and get final product, Easy to operate quick.
3, in this locking formula pipe joint, owing to omitted rubber seal, but utilize The fastening cover that red copper is made substitutes, and does not have aging problem on deformation, product in the use procedure Long service life, and can not cause secondary pollution, not perishable.
4, be screwed in the process at clamping nut, utilized the conical surface of fastening cover and fittings body and Inclined-plane on the clamping nut cooperates, the effect that can reach firm connection and seal fully.
5, this locking pipe joint not only is suitable for the rigidity composite pipe, by also being applicable to soft pipe and the pipe that is threaded after the simple increase and decrease of its part, has wide range of applications, and has higher utility.
Claims (4)
1, a kind of locking pipe joint, comprise fittings body (1) and the clamping nut (2) that is connected with fittings body (1) by screw thread, it is characterized in that being provided with in the described fittings body (1) adapter sleeve (3), adapter sleeve (3) is a cylindrical shape, its two end part are the conical surface (3a), and there is the inclined-plane (1b) that matches with the above-mentioned conical surface (3a) the inner of clamping nut (2) front end and fittings body (1).
2, locking pipe joint according to claim 1 is characterized in that the inboard of described fittings body (1) has internal thread, and fittings body (1) is connected with clamping nut (2) by internal thread.
3, locking pipe joint according to claim 1 and 2 is characterized in that it is that material is made that described adapter sleeve (3) adopts red copper.
4, locking pipe joint according to claim 1 and 2 is characterized in that there is retaining the inner of described fittings body (1) along (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01245796 CN2487938Y (en) | 2001-06-05 | 2001-06-05 | Locking type pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01245796 CN2487938Y (en) | 2001-06-05 | 2001-06-05 | Locking type pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2487938Y true CN2487938Y (en) | 2002-04-24 |
Family
ID=33656987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01245796 Expired - Fee Related CN2487938Y (en) | 2001-06-05 | 2001-06-05 | Locking type pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2487938Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443900A (en) * | 2015-12-14 | 2016-03-30 | 中国北方发动机研究所(天津) | Pipeline drawing device |
-
2001
- 2001-06-05 CN CN 01245796 patent/CN2487938Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443900A (en) * | 2015-12-14 | 2016-03-30 | 中国北方发动机研究所(天津) | Pipeline drawing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |