CN201723870U - Sealless oil pipe joint - Google Patents
Sealless oil pipe joint Download PDFInfo
- Publication number
- CN201723870U CN201723870U CN2010201472204U CN201020147220U CN201723870U CN 201723870 U CN201723870 U CN 201723870U CN 2010201472204 U CN2010201472204 U CN 2010201472204U CN 201020147220 U CN201020147220 U CN 201020147220U CN 201723870 U CN201723870 U CN 201723870U
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- CN
- China
- Prior art keywords
- joint
- oil
- oil pipe
- internal
- spigot
- 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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Abstract
The utility model discloses a sealless oil pipe joint for a hydraulic system, which consists of a joint, an oil pipe, an internal joint, a connecting screw cap and a locking piece, wherein the internal joint is fixed on the oil pipe by the locking piece; the connecting screw cap is sheathed and connected on the internal joint and is connected on the joint; the part of the internal joint meshed with the joint is in a ball shape, and the part of the joint meshed with the internal joint is in a conical shape; and taper pipe thread is arranged at the part where the joint is connected with an oil cylinder or a valve block. The internal joint adopts a ball-shaped structure so as not to be easily worn, and the butt joint is closer when the oil pressure is higher, so that the connecting way is not influenced by the oil pressure and the oil temperature, the phenomenon of oil leakage is avoided, and the reliability of the hydraulic system is improved. The other end of the joint adopts the butt joint way of the taper pipe thread, and the joint has the advantage that the joint can be screwed down inwards to be tighter and tighter, thus further improving the sealing performance of the joint.
Description
Technical field
The utility model relates to the component in a kind of hydraulic system, relates in particular to various oil connections in a kind of hydraulic system.
Background technique
In hydraulic system, connection between oil pipe and oil cylinder, the valve piece all will be used the joint of all size, leaking in order to prevent between oil pipe and the joint, between oil cylinder or valve piece and the joint, usually to adopt seal ring or sealing gasket, but seal ring or sealing gasket are in use, be subjected to its working life the influence of oily gentle oil pressure bigger, wear and tear easily when the big and oil temperature of pressure is high, cause leaking, in case just leak and to change seal ring or sealing gasket, so not only influence the proper functioning of hydraulic system, and can increase production cost.
Summary of the invention
The utility model purpose is to overcome the deficiencies in the prior art, a kind of no sealing oil pipe joint is provided, does not use seal ring or sealing gasket, make the sealing effect of joint can not be subjected to the influence of oily gentle oil pressure, avoid the phenomenon of leakage of oil to take place, improved the hydraulic system reliability of operation.
The technical solution of the utility model is achieved in that
A kind of no sealing oil pipe joint, form by joint, oil pipe, spigot, coupling nut and locking element, described spigot is fixed on the described oil pipe by described locking element, described coupling nut is sleeved on the spigot, described coupling nut is connected on the described joint, it is characterized in that: the engagement position of described spigot and joint is a ball-type, and the engagement position of described joint and spigot is tapered.
Described joint and oil cylinder or valve piece connection part are taper pipe thread.
The utility model compared with prior art has following advantage:
1. because spigot adopts the ball-type structure, be difficult to wearing and tearing, and oil pressure is high more, dock tightly more, such Placement is not subjected to oil pressure and the warm influence of oil, has avoided the generation of oil leakage phenomenon, has improved the hydraulic system reliability of operation.
2. the other end of joint adopts the docking mode of taper pipe thread, and its advantage is inwardly stubborn more tight more, has further improved the sealability of joint.
Description of drawings
Fig. 1 is the structural representation of no sealing oil pipe joint described in the utility model
1. oil pipe 2. locking elements 3. spigots 4. coupling nuts 5. joints 6. taper pipe threads
Embodiment
Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model, and all technological schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by every claim.
As can be seen from Figure 1, a kind of no sealing oil pipe joint, form by joint 5, oil pipe 1, spigot 3, coupling nut 4 and locking element 2, described spigot 3 is fixed on the described oil pipe 1 by described locking element 2, described coupling nut 4 is sleeved on the spigot 3, described coupling nut 4 is connected on the described joint 5, it is characterized in that: the engagement position of described spigot 3 and joint 5 is a ball-type, and the engagement position of described joint 5 and spigot 3 is tapered; Described joint 5 and oil cylinder or valve piece connection part are taper pipe thread 6.
Claims (2)
1. no sealing oil pipe joint, form by joint ⑸, oil pipe ⑴, spigot ⑶, coupling nut ⑷ and locking element ⑵, described spigot ⑶ is fixed on the described oil pipe ⑴ by described locking element ⑵, described coupling nut ⑷ is sleeved on the spigot ⑶, described coupling nut ⑷ is connected on the described joint ⑸, it is characterized in that: the engagement position of described spigot ⑶ and joint ⑸ is a ball-type, and the engagement position of described joint ⑸ and spigot ⑶ is tapered.
2. a kind of no sealing oil pipe joint according to claim 1 is characterized in that: described joint ⑸ and oil cylinder or valve piece connection part are taper pipe thread ⑹.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201472204U CN201723870U (en) | 2010-04-01 | 2010-04-01 | Sealless oil pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201472204U CN201723870U (en) | 2010-04-01 | 2010-04-01 | Sealless oil pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723870U true CN201723870U (en) | 2011-01-26 |
Family
ID=43492200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201472204U Expired - Fee Related CN201723870U (en) | 2010-04-01 | 2010-04-01 | Sealless oil pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723870U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267187A (en) * | 2013-05-10 | 2013-08-28 | 西安航空动力股份有限公司 | Fuel manifold spherical joint and tester quick connector |
| CN103953805A (en) * | 2014-04-25 | 2014-07-30 | 西安航空动力股份有限公司 | Bolt type quick-change connector for test |
| CN104565626A (en) * | 2014-12-11 | 2015-04-29 | 中国北方发动机研究所(天津) | Auxiliary sealing structure for spherical joint |
| CN106153242A (en) * | 2015-03-30 | 2016-11-23 | 北京自动化控制设备研究所 | A kind of air gauge gas circuit switching and locking device |
| CN106870839A (en) * | 2016-12-27 | 2017-06-20 | 潍柴动力股份有限公司 | A kind of sucker of supercharger attachment structure and connection method |
| CN108006340A (en) * | 2017-11-30 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of preparation method of the pipe seal part used under high temperature |
| CN111750198A (en) * | 2020-07-06 | 2020-10-09 | 上海朋环测控技术股份有限公司 | Analysis sample transmission pipeline structure with heating function |
-
2010
- 2010-04-01 CN CN2010201472204U patent/CN201723870U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267187A (en) * | 2013-05-10 | 2013-08-28 | 西安航空动力股份有限公司 | Fuel manifold spherical joint and tester quick connector |
| CN103267187B (en) * | 2013-05-10 | 2015-04-29 | 西安航空动力股份有限公司 | Fuel manifold spherical joint and tester quick connector |
| CN103953805A (en) * | 2014-04-25 | 2014-07-30 | 西安航空动力股份有限公司 | Bolt type quick-change connector for test |
| CN104565626A (en) * | 2014-12-11 | 2015-04-29 | 中国北方发动机研究所(天津) | Auxiliary sealing structure for spherical joint |
| CN106153242A (en) * | 2015-03-30 | 2016-11-23 | 北京自动化控制设备研究所 | A kind of air gauge gas circuit switching and locking device |
| CN106870839A (en) * | 2016-12-27 | 2017-06-20 | 潍柴动力股份有限公司 | A kind of sucker of supercharger attachment structure and connection method |
| CN108006340A (en) * | 2017-11-30 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of preparation method of the pipe seal part used under high temperature |
| CN111750198A (en) * | 2020-07-06 | 2020-10-09 | 上海朋环测控技术股份有限公司 | Analysis sample transmission pipeline structure with heating function |
| CN111750198B (en) * | 2020-07-06 | 2022-05-06 | 上海朋环测控技术股份有限公司 | Analysis sample transmission pipeline structure with heating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20110401 |