CN201858451U - Conveniently dismounted high-pressure hydraulic pipe joint - Google Patents
Conveniently dismounted high-pressure hydraulic pipe joint Download PDFInfo
- Publication number
- CN201858451U CN201858451U CN2010205800250U CN201020580025U CN201858451U CN 201858451 U CN201858451 U CN 201858451U CN 2010205800250 U CN2010205800250 U CN 2010205800250U CN 201020580025 U CN201020580025 U CN 201020580025U CN 201858451 U CN201858451 U CN 201858451U
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- conical surface
- mushroom
- fittings
- pipe joint
- pipe
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Abstract
The utility model discloses a conveniently dismounted high-pressure hydraulic pipe joint. An inner ring at one end of a joint body is provided with a conical surface; a joint nut is screwed at an outer ring at one end of the joint body; a conical end is arranged at one end of a connection pipe; a jacket is sheathed at an outer ring of the connection pipe and a conical surface matched with the conical end of the connection pipe is arranged at one end of the jacket; the connection pipe and the jacket are penetrated in a through hole of the joint nut, and the conical end of the connection pipe and the conical surface of the jacket are located in the joint nut; ring-shaped grooves are arranged in two side inclined surfaces of a mushroom-shaped transition body; two O-shaped sealing rings are respectively arranged in the two ring-shaped grooves of the mushroom-shaped transition body; and the mushroom-shaped transition body is arranged on the conical surface of the inner ring at one end of the joint body and at the conical end of the connection pipe. The pipe joint is applicable to the pipe connection in high-pressure hydraulic systems; and as the defects of traditional pipe joints are overcome, the work pressure achieves above 44MPa, the dismounting is convenient and the influence on the sealing performance of the pipe joint caused by repeated dismounting is avoided the pipe joint is applicable to various high-pressure hydraulic systems.
Description
Technical field
The utility model relates to a kind of high-pressure and hydraulic pipe joint of easy disassembly.
Background technique
Along with the portion of advancing of Modern Manufacturing Technology, hydraulic system is being played the part of the role who becomes more and more important in the modern comfort manufacturing, also plays a part bolt in the similar mechanical structure as the hydraulic fitting of hydraulic services.Particularly in high-pressure system, more and more higher requirement has been proposed pipe joint.
Common hydraulic fitting form has welding type, FERRULETYPE and flared type at present.
Welded fitting mainly is made up of fittings body, O RunddichtringO, Female connector fittings and adapter; Fittings body is screwed into body (as the valve body or the pump housing etc.), and screw thread is the closely-pitched cylindrical thread, fittings body and take between link closely and adopt the O-ring seals sealing by Female connector fittings, take over pipe-line system in steel pipe be weldingly connected; The working pressure 31.5MPa of Welded fitting, the welding quality of adapter is had relatively high expectations, and dismounting inconvenience.
The flared fitting working principle is that adapter (being generally copper pipe and thin-wall steel tube) expanding end angle is 74 °, and the internal taper hole of guide pin bushing is 66 °, with nut guide pin bushing is formed sealing together with taking over to be pressed on the fittings body during installation; The flared fitting working pressure depends on the allowable pressure of tubing, is generally 3.5～16Mpa; It utilizes the tube end enlarging to seal, and does not need other Sealings; Generally be used for, in the low pressure line system.
Bite type fittings mainly is made up of fittings body, the cutting ferrule that has sharp-pointed inner edge and three basic parts of Female connector fittings.When cutting ferrule and Female connector fittings be enclosed within insert fittings body on the pipe after, screw Female connector fittings, because the internal taper hole of fittings body and the effect of nut back taper, the cutting ferrule rear portion is stuck in plays the retaining effect on the tube wall, in the tube outer wall of cutting ferrule cutting edge incision simultaneously, played the effect of sealing and anti-pull-off, cutting ferrule is a vital part in the fittings body, and its quality quality directly influences sealability, join strength and the repeat performance of pipe joint; Its working pressure is 31.5MPa, and the concubine requires pipe sizing precision height, needs cold drawing steel tube.
The working pressure of above-mentioned conventional pipe joint all below 31.5MPa, and repeatedly after the dismounting reliability reduce, easily cause seepage, dismounting inconvenience.Conventional pipe joint can't be applied in the hydraulic system of high pressure, and as the hydraulic system of all kinds of chassises that adopt the static pressure transmission, its loine pressure reaches 44MPa, and the pipe joint dismounting is frequent in vehicle regular maintenance process.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of high-pressure and hydraulic pipe joint of easy disassembly, this pipe joint has overcome the defective of conventional pipe joint, its working pressure reaches more than the 44MPa, and easy accessibility, avoid repeatedly dismounting to the pipe seal Effect on Performance, be applicable to all kinds of high-pressure hydraulics.
For solving the problems of the technologies described above, the high-pressure and hydraulic pipe joint of the utility model easy disassembly comprises fittings body, Female connector fittings and adapter, also comprise mushroom-like transition body, sheath, two O RunddichtringOs, described fittings body one end inner ring is provided with conical surface, described Female connector fittings is twisted in described fittings body one end outer ring, described adapter one end is a tapered end, described sheath is placed in described adapter outer ring and an end is provided with the conical surface that mates with described adapter tapered end, described adapter and sheath penetrate the interior tapered end of also taking over of through hole of described Female connector fittings and the conical surface of sheath is positioned at Female connector fittings, two lateral incline of described mushroom-like transition body have annular groove, described two O RunddichtringOs are located at respectively in two annular grooves of described mushroom-like transition body, and described mushroom-like transition body is located at the conical surface of described fittings body one end inner ring and the tapered end of adapter.
For reaching good sealing effect, the conical surface angle of above-mentioned adapter tapered end can be 66 ° or 74 °.
For further improving the reliability of sealing, the external circle end face of above-mentioned mushroom-like transition is provided with buckle, and the buckle of described mushroom-like transition body is against the conical surface end of described fittings body one end.
Because the high-pressure and hydraulic pipe joint of the utility model easy disassembly has adopted technique scheme, be that fittings body one end inner ring is provided with conical surface, Female connector fittings is twisted in fittings body one end outer ring, taking over an end is tapered end, sheath is placed in the adapter outer ring and an end is provided with and takes over the conical surface of tapered end coupling, adapter and sheath penetrate the interior tapered end of also taking over of through hole of Female connector fittings and the conical surface of sheath is positioned at Female connector fittings, two lateral incline of mushroom-like transition body have annular groove, two O RunddichtringOs are located at respectively in two annular grooves of mushroom-like transition body, and mushroom-like transition body is located at the conical surface of fittings body one end inner ring and the tapered end of adapter.This pipe joint is applicable to that being used for pipeline in the high-pressure hydraulic connects, and has overcome the defective of conventional pipe joint, and its working pressure reaches more than the 44MPa, and easy accessibility, has avoided repeatedly dismounting to the pipe seal Effect on Performance, is applicable to all kinds of high-pressure hydraulics.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of the high-pressure and hydraulic pipe joint of the utility model easy disassembly.
Embodiment
As shown in Figure 1, the high-pressure and hydraulic pipe joint of the utility model easy disassembly comprises fittings body 1, Female connector fittings 2 and adapter 3, also comprise mushroom-like transition body 4, sheath 7, two O RunddichtringOs 61 and 62, described fittings body 1 one end inner rings are provided with conical surface, described Female connector fittings 2 is twisted in described fittings body 1 one end outer rings, described adapter 3 one ends are tapered end, described sheath 7 is placed in described adapter 3 outer rings and an end is provided with the conical surface that mates with described adapter 3 tapered ends, described adapter 3 and sheath 7 penetrate in the through hole of described Female connector fittings 2 and take over 3 tapered end and the conical surface of sheath 7 is positioned at Female connector fittings 2, two lateral incline of described mushroom-like transition body 4 have annular groove 41 and 42, described two O RunddichtringOs 61 and 62 are located at respectively in two annular grooves 41 and 42 of described mushroom-like transition body 4, and described mushroom-like transition body 4 is located at the conical surface of described fittings body 1 one end inner rings and is taken over 3 tapered end.
For reaching good sealing effect, the conical surface angle of above-mentioned adapter 3 tapered ends can be 66 ° or 74 °.
For further improving the reliability of sealing, above-mentioned mushroom-like transition body 4 outer ring end faces are provided with buckle 43, and the buckle 43 of described mushroom-like transition body 4 is against the conical surface end of described fittings body 1 one ends.
When this pipe joint uses, fittings body can be threaded onto hydraulic pipe line one end of bodies such as the valve body or the pump housing, take over and connect the hydraulic pipe line the other end, screw Female connector fittings and make the fittings body conical surface and take over two lateral incline that tapered end is tight against mushroom-like transition body, two O RunddichtringOs of being located at mushroom-like transition body two lateral incline play seal action simultaneously; In the adapter outer ring sheath is housed, has both protected adapter, stressed even when Female connector fittings is screwed, reach and reduce the purpose of taking over distortion in the pipe joint disassembly process; In addition,, adopted the conical surface seal structure of similar one-way valve, made that the sealing of pipe joint is more reliable in the connecting part of fittings body and mushroom-shaped transition body.
This pipe joint is applicable in the high-pressure hydraulic, after in the hydraulic system of all kinds of chassises that adopt the static pressure transmission, using, this pipe joint is through test, withstand voltage more than 44MPa, satisfied the requirement of high-pressure hydraulic to pipe joint, this pipe joint is through more than a year use on the vehicle by statistics, and the dismounting of part pipe joint reaches more than 30 times, and sealing is still good.
Claims (3)
1. the high-pressure and hydraulic pipe joint of an easy disassembly, comprise fittings body, Female connector fittings and adapter, it is characterized in that: also comprise mushroom-like transition body, sheath, two O RunddichtringOs, described fittings body one end inner ring is provided with conical surface, described Female connector fittings is twisted in described fittings body one end outer ring, described adapter one end is a tapered end, described sheath is placed in described adapter outer ring and an end is provided with the conical surface that mates with described adapter tapered end, described adapter and sheath penetrate the interior tapered end of also taking over of through hole of described Female connector fittings and the conical surface of sheath is positioned at Female connector fittings, two lateral incline of described mushroom-like transition body have annular groove, described two O RunddichtringOs are located at respectively in two annular grooves of described mushroom-like transition body, and described mushroom-like transition body is located at the conical surface of described fittings body one end inner ring and the tapered end of adapter.
2. the high-pressure and hydraulic pipe joint of easy disassembly according to claim 1, it is characterized in that: the conical surface angle of described adapter tapered end is 66 ° or 74 °.
3. the high-pressure and hydraulic pipe joint of easy disassembly according to claim 1, it is characterized in that: the external circle end face of described mushroom-like transition is provided with buckle, and the buckle of described mushroom-like transition body is against the conical surface end of described fittings body one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205800250U CN201858451U (en) | 2010-10-27 | 2010-10-27 | Conveniently dismounted high-pressure hydraulic pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205800250U CN201858451U (en) | 2010-10-27 | 2010-10-27 | Conveniently dismounted high-pressure hydraulic pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858451U true CN201858451U (en) | 2011-06-08 |
Family
ID=44104257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205800250U Expired - Fee Related CN201858451U (en) | 2010-10-27 | 2010-10-27 | Conveniently dismounted high-pressure hydraulic pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858451U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364192A (en) * | 2011-10-28 | 2012-02-29 | 江苏宏丰奥凯机电有限公司 | Strengthening clamp for high pressure oil pipe |
| CN104405977A (en) * | 2014-11-27 | 2015-03-11 | 宁波福士汽车部件有限公司 | Engine pipeline assembly and manufacturing method thereof |
| CN105650371A (en) * | 2016-03-02 | 2016-06-08 | 谢博 | Oil pump connecting device for hydraulic steering gear |
| CN107366785A (en) * | 2017-08-18 | 2017-11-21 | 玉环县玉立水暖器材厂 | A kind of pipe joint |
| CN112066261A (en) * | 2020-07-30 | 2020-12-11 | 中广核核电运营有限公司 | Oil supplementing device of oil regulating system |
-
2010
- 2010-10-27 CN CN2010205800250U patent/CN201858451U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364192A (en) * | 2011-10-28 | 2012-02-29 | 江苏宏丰奥凯机电有限公司 | Strengthening clamp for high pressure oil pipe |
| CN104405977A (en) * | 2014-11-27 | 2015-03-11 | 宁波福士汽车部件有限公司 | Engine pipeline assembly and manufacturing method thereof |
| CN105650371A (en) * | 2016-03-02 | 2016-06-08 | 谢博 | Oil pump connecting device for hydraulic steering gear |
| CN107366785A (en) * | 2017-08-18 | 2017-11-21 | 玉环县玉立水暖器材厂 | A kind of pipe joint |
| CN107366785B (en) * | 2017-08-18 | 2023-05-09 | 湖南天力瑞家新材科技股份有限公司 | Pipeline joint |
| CN112066261A (en) * | 2020-07-30 | 2020-12-11 | 中广核核电运营有限公司 | Oil supplementing device of oil regulating system |
| CN112066261B (en) * | 2020-07-30 | 2022-10-21 | 中广核核电运营有限公司 | Oil supplementing device of oil regulating system |
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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: 20110608 Termination date: 20131027 |