CN204533894U - A kind of enlarging sealing joint body - Google Patents
A kind of enlarging sealing joint body Download PDFInfo
- Publication number
- CN204533894U CN204533894U CN201420851953.4U CN201420851953U CN204533894U CN 204533894 U CN204533894 U CN 204533894U CN 201420851953 U CN201420851953 U CN 201420851953U CN 204533894 U CN204533894 U CN 204533894U
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- Prior art keywords
- annular
- adopts
- enlarging
- seal
- sealing
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Abstract
The utility model relates to a kind of enlarging sealing joint body, comprise the fittings body body that flaring angle is 74 °, the enlarging sealed end of described fittings body body is provided with the annular groove placing O RunddichtringO, pipeline screw terminal adopts seal with screwed joint, afterbody connecting end outside thread is the tapered thread outwards tightened up, and tapering is 3-6 °.Annular groove is by the annular facade with axes normal and become the annular slope of 15-30 ° of angle to form with axis, adopts round-corner transition between annular facade and annular slope.Prior art is compared, the beneficial effects of the utility model are: end part seal adopts and firmly seals the mode combined with soft seal, screw terminal adopts seal with screwed joint, connecting end adopts outer cone thread to connect sealing, between itself and each link in outside, sealing effect is good, and the requirement on machining accuracy that can reduce sealed end, thus reduce cost of production.
Description
Technical field
The utility model relates to a kind of hydraulic pressure or pneumatic circuit link, particularly relates to a kind of enlarging sealing joint body.
Background technique
In hydraulic system, pipe joint is referred to as by connecting pipeline or the part be contained in by pipeline on hydraulic element, is a kind of link can installed and removed in fluid passage.Hard pipe joint mainly contains Welded fitting, Bite type fittings and flared fitting.Flared fitting is the joint that hydraulic pressure and other fluid control or commonly use in transmission, because it has the characteristics such as high temperature resistant, high temperature hydraulic pressure and other fluid circuit use amount many especially.Because the joint of flared fitting and pipeline belongs to the hard sealing of metal covering to metal covering, in order to ensure sealing effect, flared fitting sealed end requirement on machining accuracy is very high, assembling screw-down torque must within the limits prescribed, cause the processing cost of enlarging work fittings body to remain high simultaneously always.
Summary of the invention
The utility model provides a kind of enlarging sealing joint body, its end part seal adopts and firmly seals the mode combined with soft seal, and screw terminal adopts seal with screwed joint, and connecting end adopts outer cone thread to connect sealing, between itself and each link in outside, sealing effect is good, and can reduce cost of production.
In order to achieve the above object, the utility model realizes by the following technical solutions:
A kind of enlarging sealing joint body, comprise the fittings body body that flaring angle is 74 °, the enlarging sealed end of described fittings body body is provided with the annular groove placing O RunddichtringO, pipeline screw terminal adopts seal with screwed joint, afterbody connecting end outside thread is the tapered thread outwards tightened up, and tapering is 3-6 °.
Described annular groove is by the annular facade with axes normal and become the annular slope of 15-30 ° of angle to form with axis, adopts round-corner transition between annular facade and annular slope.
Compared with prior art, the beneficial effects of the utility model are:
End part seal adopts and firmly seals the mode combined with soft seal, screw terminal adopts seal with screwed joint, and connecting end adopts outer cone thread to connect sealing, and between itself and each link in outside, sealing effect is good, and the requirement on machining accuracy that can reduce sealed end, thus reduce cost of production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model scheme of installation.
In figure: 1. joint body 11. enlarging sealed end 12. pipeline screw terminal 13. afterbody connecting end 14. annular groove 2.O RunddichtringO 3. nut 4. is taken over
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, it is structural representation of the present utility model, a kind of enlarging sealing joint body of the utility model, comprise the fittings body body 1 that flaring angle is 74 °, the enlarging sealed end 11 of described fittings body body 1 is provided with the annular groove 14 placing O RunddichtringO 2, pipeline screw terminal 12 adopts seal with screwed joint, and afterbody connecting end 13 outside thread is the tapered thread outwards tightened up, tapering (β) 3-6 °.
Described annular groove 14 is by the annular facade with axes normal and become the annular slope of 15-30 ° of angle (α) to form with axis, adopts round-corner transition between annular facade and annular slope.
Seeing Fig. 2, is the utility model scheme of installation.O RunddichtringO 2 is selected according to annular groove 14 minimum diameter during use, be inserted in from fittings body enlarging sealed end 11 after O RunddichtringO 2 is strutted, because O RunddichtringO 2 itself has elasticity, can clamp after removing external force and be fixed on annular groove 14 place, after docking with adapter 4, nut 3 is tightened from pipeline screw terminal 12, now, between 74 ° of end faces of joint body 1 and adapter 4 except the rigid contact between metal covering, also add the Elastic Contact after O RunddichtringO 2 distortion, make sealing more closely reliable.Pipeline screw terminal 12 after enlarging sealed end 11 adopts and is threaded, and afterbody connecting end 13 adopts external conical shape screw thread, all makes to have good sealing between joint body 1 and connected piece, and the pipeline that can adapt under certain hydrodynamic pressure connects.
Claims (2)
1. an enlarging sealing joint body, it is characterized in that, comprise the fittings body body that flaring angle is 74 °, the enlarging sealed end of described fittings body body is provided with the annular groove placing O RunddichtringO, pipeline screw terminal adopts seal with screwed joint, afterbody connecting end outside thread is the tapered thread outwards tightened up, and tapering is 3-6 °.
2. a kind of enlarging sealing joint body according to claim 1, is characterized in that, described annular groove is by the annular facade with axes normal and become the annular slope of 15-30 ° of angle to form with axis, adopts round-corner transition between annular facade and annular slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851953.4U CN204533894U (en) | 2014-12-29 | 2014-12-29 | A kind of enlarging sealing joint body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851953.4U CN204533894U (en) | 2014-12-29 | 2014-12-29 | A kind of enlarging sealing joint body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533894U true CN204533894U (en) | 2015-08-05 |
Family
ID=53747900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420851953.4U Expired - Fee Related CN204533894U (en) | 2014-12-29 | 2014-12-29 | A kind of enlarging sealing joint body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099235A (en) * | 2017-06-21 | 2018-12-28 | 辽宁美托科技股份有限公司 | Compound seal flared fitting and encapsulating method |
| CN109424805A (en) * | 2017-08-28 | 2019-03-05 | 艾默生环境优化技术(苏州)有限公司 | Sealing connection structure, functional part, thermal expansion valve and system |
-
2014
- 2014-12-29 CN CN201420851953.4U patent/CN204533894U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099235A (en) * | 2017-06-21 | 2018-12-28 | 辽宁美托科技股份有限公司 | Compound seal flared fitting and encapsulating method |
| CN109424805A (en) * | 2017-08-28 | 2019-03-05 | 艾默生环境优化技术(苏州)有限公司 | Sealing connection structure, functional part, thermal expansion valve and system |
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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: 20150805 |