CN203560635U - Self-sealing joints and airport valve of hydraulic system utilizing same - Google Patents
Self-sealing joints and airport valve of hydraulic system utilizing same Download PDFInfo
- Publication number
- CN203560635U CN203560635U CN201320519435.8U CN201320519435U CN203560635U CN 203560635 U CN203560635 U CN 203560635U CN 201320519435 U CN201320519435 U CN 201320519435U CN 203560635 U CN203560635 U CN 203560635U
- Authority
- CN
- China
- Prior art keywords
- sealing
- sliding sleeve
- self
- valve body
- retainer plate
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model relates to the field of pipeline joints and especially relates to self-sealing joints and airport valve of a hydraulic system utilizing the same. Each self-sealing joint comprises a valve body, a core sleeve and a seal sliding sleeve. The core sleeve and the valve body are coaxially and fixedly arranged in the valve body. The seal sliding sleeve is arranged on the core sleeve in a front-back sliding mode. An oil outlet is arranged in the sleeve wall of the core sleeve and an oil inlet is arranged at the rear end. The rear end of the seal sliding sleeve is provided with a reset spring in an abutting mode. The front portion of the seal sliding sleeve is also provided with a sealing gasket used for being matched with a corresponding pipe fitting in a sealing mode. The self-sealing joints and the airport valve of the hydraulic system utilizing the same have following beneficial effects: the front portion is provided with the sealing gasket used for being matched with the corresponding pipe fitting in a sealing mode so that the sealing gasket is pressed between the seal sliding sleeve and the corresponding pipe fitting when the sealing gasket is connected with the corresponding pipe fitting of the hydraulic system and the matching part of the front end surface of the seal sliding sleeve and the corresponding pipe fitting is sealed; and therefore the leakage problem of a presently-used self-sealing joint is resolved.
Description
Self-sealing joint and use the hydraulic system of this joint valve that picks
Technical field
The utility model relates to pipe joint field, particularly relates to a kind of self-sealing joint and uses the hydraulic system of this joint valve that picks.
Background technique
In some main equipments in the fields such as aviation, navigation, the overall volume of some hydraulic systems is huge, Heavy Weight and need to connect long pipeline, and these hydraulic systems often all need to carry out strict testing property, clean and maintenance or oiling before installation or after work a period of time.When hydraulic system is tested, just it need to be connected with corresponding testing apparatus, certainly, during clean and maintenance hydraulic system, need it to connect with corresponding service equipment, during oiling, need to be connected with corresponding fuel-servicing equipment.
Under normal circumstances, being connected all between hydraulic system and relevant device undertaken by pipeline and corresponding pipe joint, specifically, test, clean or add wet goods service equipment and be connected with pipeline, the end of pipeline is provided with the pipe joint for being connected with corresponding hydraulic system, when hydraulic system is operated accordingly, need to first by pipe joint, service equipment and hydraulic system be linked together.Owing to itself just having the medium of certain pressure in most test systems, so when not being connected with hydraulic system, for fear of the leakage of medium, need pipeline in turnoff state.At present, in order to achieve the above object, conventional method is to adopt self-sealing joint as pipe joint.
Publication number is that the Chinese patent of CN102230542A discloses a kind of core joint valve of determining, this determines the one that core joint valve is exactly self-sealing joint, the core retainer plate that it comprises valve body and is coaxially fixed together with valve body, core retainer plate is the circle cover of front end sealing, the front end place of its jacket wall has inside and outside penetrating oil outlet, and the opening of its rear end forms the filler opening of core retainer plate; On core retainer plate, have can be along the sealing sliding sleeve of fore-and-aft direction activity for cover, between the rear end of sealing sliding sleeve and core retainer plate, be top-loaded with Returnning spring, under the effect of Returnning spring, sealing sliding sleeve is by the oil outlet sealing on core retainer plate, thereby realize, determine the self-styled of core joint valve, when pegging graft with corresponding pipe fitting, sealing sliding sleeve is pushed backward by pipe fitting, thereby the endoporus of pipe fitting is communicated with oil outlet on core retainer plate and the filler opening of core retainer plate, when pipe fitting is extracted, Returnning spring impels sealing sliding sleeve to reset and again seals the oil outlet of core retainer plate.Hence one can see that, this is determined core joint valve and can realize reliably self-styled, but, because the front end of its sealing sliding sleeve does not have corresponding sealing configuration, when coordinating with corresponding pipe fitting, there is seepage by the gap between front-end face and corresponding pipe fitting by sealing sliding sleeve in the medium that flows through core retainer plate, thereby causes the waste of medium and reduce the reliability being connected between service equipment and corresponding hydraulic system, in addition, owing to there is no corresponding sealing configuration between the sealing outer circumferential face of sliding sleeve and the internal face of valve body, the above-mentioned medium that oozes out of front end from sealing sliding sleeve will be flowed into and be remained in by the gap between sealing sliding sleeve and valve body and seal in the space that the rear end of sliding sleeve and core retainer plate and valve body surround, when determining core joint valve when separation with pipe fitting, this a part of medium will partly or entirely be discharged, thereby cause waste, especially when there is the situation of not discharging completely, remain in rear end and the core retainer plate of sealing sliding sleeve and space that valve body surrounds after ground medium also will obstruction seals sliding sleeve and move, for determining the use next time of core joint valve, make troubles.
Summary of the invention
The purpose of this utility model is to provide a kind of self-sealing joint, the leakage problem existing to solve existing self-sealing joint.
Meanwhile, the purpose of this utility model is also to provide a kind of hydraulic system of using above-mentioned self-sealing joint valve that picks.
In order to address the above problem, self-sealing joint is by the following technical solutions: self-sealing joint, comprise valve body, be slidably assemblied in the sealing sliding sleeve on core retainer plate with the core retainer plate and the front and back that are fixedly assemblied in valve body of valve body coaxial line, the jacket wall of core retainer plate is provided with oil outlet, its rear end has filler opening, the rear end of sealing sliding sleeve is top-loaded with Returnning spring, and the front portion of sealing sliding sleeve is also provided with the sealing gasket for being sealed and matched with corresponding pipe fitting.
Sealed sliding is enclosed within valve body and forms piston structure, on the jacket wall of core retainer plate, at the place, rear of sealing sliding sleeve, is provided with inside and outside penetrating pressure compensation opening.
The rear end of valve body is provided with the oil inlet passage identical with the filler opening of core retainer plate, is also provided with around the end-face seal ring of the external port of oil inlet passage thereafter on end face.
Described sealing sliding sleeve is ladder cover, and it comprises the path section of front end and the large footpath section of rear end, and the outer circumferential face of described path section is provided with annular groove, and sealing gasket is arranged in described annular groove.
Hydraulic system picks valve by the following technical solutions: the hydraulic system valve that picks, comprise two self-sealing joints and be connected to two self-loopa joints between self-sealing joint, each self-sealing joint includes valve body, is slidably assemblied in the sealing sliding sleeve on core retainer plate with the core retainer plate and the front and back that are fixedly assemblied in valve body of valve body coaxial line, the jacket wall of core retainer plate is provided with oil outlet, its rear end has filler opening, the rear end of sealing sliding sleeve is top-loaded with Returnning spring, and the front portion of sealing sliding sleeve is also provided with the sealing gasket for being sealed and matched with corresponding pipe fitting.
Sealed sliding is enclosed within valve body and forms piston structure, on the jacket wall of core retainer plate, at the place, rear of sealing sliding sleeve, is provided with inside and outside penetrating pressure compensation opening.
The rear end of valve body is provided with the oil inlet passage identical with the filler opening of core retainer plate, is also provided with around the end-face seal ring of the external port of oil inlet passage thereafter on end face, and valve body coordinates with self-loopa joint sealing by described end-face seal ring.
Described sealing sliding sleeve is ladder cover, and it comprises the path section of front end and the large footpath section of rear end, and the outer circumferential face of described path section is provided with annular groove, and sealing gasket is arranged in described annular groove.
Because the front portion of sealing sliding sleeve is also provided with the sealing gasket for being sealed and matched with corresponding pipe fitting, therefore, when being connected with the pipe fitting in corresponding hydraulic system, sealing gasket will be crushed between sealing sliding sleeve and corresponding pipe fitting, thereby by the sealing front-end face of sliding sleeve and the sealing of the cooperation place of corresponding pipe fitting, thereby solve the leakage problem that existing self-sealing joint exists.
Further, after sealed sliding being enclosed within form piston structure in valve body, even after sealing gasket lost efficacy, the medium oozing out from the front end of sealing sliding sleeve also cannot flow in the rear space that seals sliding sleeve and go, for as special hydraulic systems such as Tu-204 plane hydraulic systems, itself exist high pressure, the setting of pressure compensation opening can make the pressure moment that seals place, sliding sleeve two ends reach balance, damages Returnning spring in order to avoid the interior too high pressure of hydraulic system impacts sealing sliding sleeve by pressure; End-face seal ring has guaranteed the sealing of locating of self-sealing joint rear end, improves the sealability of self-sealing joint entirety; The path section of sealing sliding sleeve can be for coordinating with corresponding pipe fitting guide-localization, and it is also installed carrier is provided for the anticreep of sealing gasket simultaneously.
Accompanying drawing explanation
Fig. 1 is the use phase diagram of self-sealing joint while being connected with plane hydraulic system;
Fig. 2 is the pick structural representation of valve of hydraulic system.
Embodiment
The embodiment of self-sealing joint, as shown in Figure 1, this self-sealing joint comprises valve body 11, coupling nut 12, core retainer plate 13, sealing sliding sleeve 14 and Returnning spring 15.In the present embodiment, the external frame of valve body 11 is roughly cylindrical, its endoporus is step hole, comprise the large footpath section that is positioned at front end and the path section that is positioned at rear end, the front end place of its small diameter section is provided with internal thread, in addition, the front end place of valve body 11 is provided with outer turning edge, place, its rear end be provided with for the outside thread of corresponding pipeline or equipment connection.Coupling nut 12 is enclosed within on valve body 11, and outer the turning edge at valve body 11 front end places can stop coupling nut 12 to come off from its front end.
Sealing sliding sleeve 14 front and back are slidably enclosed within on core retainer plate 13, core retainer plate 13 comes off from its front end along prevention sealing sliding sleeve 14 by the set gear of its front end, the sealing outer circumferential face of sliding sleeve 14 and the internal face slipper seal of valve body 11 coordinate, inner wall surface thereof coordinates with the outer circumferential face slipper seal of core retainer plate 13, thereby formed piston structure in valve body 11, in the present embodiment, sealing sliding sleeve 14 is ladder nested structure, it comprises the path section that is positioned at front end and the large footpath section that is positioned at rear end, in the path section of sealing sliding sleeve 14, have annular groove, in annular groove, be provided with sealing gasket 17, sealing gasket 17 is for being crushed between the sealing large footpath section front-end face of sliding sleeve 14 and the pipe fitting 18 of corresponding hydraulic system (the present embodiment is plane hydraulic system), thereby realize the interfacial seal to sealing sliding sleeve 14 front end places, the large footpath section of sealing sliding sleeve 14 is provided with side face seal ring 19, it is to be sealed and matched by side face seal ring 19 and the internal face of valve body 11.
Returnning spring 15 tops are contained in the rear end of sealing sliding sleeve 14, in the present embodiment, it is to locate between the step surface pushing up in rear end and the valve body 11 that is contained in sealing sliding sleeve 14, and under original state, Returnning spring 15 impels sealing sliding sleeve 14 to be positioned at the front end place of core retainer plate 13 and the oil outlet of core retainer plate 13 is sealed.
The pick embodiment of valve of hydraulic system, as shown in Figure 2, it comprises two self-sealing joints and is connected to two self-loopa joints 201 between self-sealing joint, wherein in two self-sealing joints for the fuel-intake connection 202 that picks, another is the back leakage connection 203 that picks, their structure is identical and all identical with the embodiment's of above-mentioned self-sealing joint structure, the structure of self-loopa joint is prior art, and it will not go into details herein.Two self-sealing joints by its separately the end-face seal ring at valve rear end place coordinate with self-loopa joint sealing.When the fluid in the hydraulic oil container of the corresponding hydraulic system in ground needs self-loopa to clean, by self-loopa joint, pick fuel-intake connection and the back leakage connection that picks are communicated with, can carry out the self-loopa of fluid and clean.
Claims (8)
1. self-sealing joint, comprise valve body, be slidably assemblied in the sealing sliding sleeve on core retainer plate with the core retainer plate and the front and back that are fixedly assemblied in valve body of valve body coaxial line, the jacket wall of core retainer plate is provided with oil outlet, its rear end has filler opening, the rear end of sealing sliding sleeve is top-loaded with Returnning spring, it is characterized in that, the front portion of sealing sliding sleeve is also provided with the sealing gasket for being sealed and matched with corresponding pipe fitting.
2. self-sealing joint according to claim 1, is characterized in that, sealed sliding is enclosed within valve body and forms piston structure, on the jacket wall of core retainer plate, at the place, rear of sealing sliding sleeve, is provided with inside and outside penetrating pressure compensation opening.
3. self-sealing joint according to claim 1, is characterized in that, the rear end of valve body is provided with the oil inlet passage identical with the filler opening of core retainer plate, is also provided with around the end-face seal ring of the external port of oil inlet passage thereafter on end face.
4. according to the self-sealing joint described in claim 1 or 2 or 3, it is characterized in that, described sealing sliding sleeve is ladder cover, and it comprises the path section of front end and the large footpath section of rear end, and the outer circumferential face of described path section is provided with annular groove, and sealing gasket is arranged in described annular groove.
5. the hydraulic system valve that picks, comprise two self-sealing joints and be connected to two self-loopa joints between self-sealing joint, each self-sealing joint includes valve body, is slidably assemblied in the sealing sliding sleeve on core retainer plate with the core retainer plate and the front and back that are fixedly assemblied in valve body of valve body coaxial line, the jacket wall of core retainer plate is provided with oil outlet, its rear end has filler opening, the rear end of sealing sliding sleeve is top-loaded with Returnning spring, it is characterized in that, the front portion of sealing sliding sleeve is also provided with the sealing gasket for being sealed and matched with corresponding pipe fitting.
6. the hydraulic system according to claim 5 valve that picks, is characterized in that, sealed sliding is enclosed within valve body and forms piston structure, on the jacket wall of core retainer plate, at the place, rear of sealing sliding sleeve, is provided with inside and outside penetrating pressure compensation opening.
7. the hydraulic system according to claim 5 valve that picks, it is characterized in that, the rear end of valve body is provided with the oil inlet passage identical with the filler opening of core retainer plate, thereafter on end face, be also provided with around the end-face seal ring of the external port of oil inlet passage, valve body coordinates with self-loopa joint sealing by described end-face seal ring.
8. according to the valve that picks of the hydraulic system described in claim 5 or 6 or 7, it is characterized in that, described sealing sliding sleeve is ladder cover, and it comprises the path section of front end and the large footpath section of rear end, the outer circumferential face of described path section is provided with annular groove, and sealing gasket is arranged in described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320519435.8U CN203560635U (en) | 2013-08-23 | 2013-08-23 | Self-sealing joints and airport valve of hydraulic system utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320519435.8U CN203560635U (en) | 2013-08-23 | 2013-08-23 | Self-sealing joints and airport valve of hydraulic system utilizing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560635U true CN203560635U (en) | 2014-04-23 |
Family
ID=50510356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320519435.8U Withdrawn - After Issue CN203560635U (en) | 2013-08-23 | 2013-08-23 | Self-sealing joints and airport valve of hydraulic system utilizing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883097A (en) * | 2017-12-25 | 2018-04-06 | 新乡平原航空液压设备有限公司 | Determine core joint and the adapter assembly of core joint is determined using this |
| CN109488825A (en) * | 2018-12-07 | 2019-03-19 | 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 shutdown pipe fitting with hydraulic oil liquid block function |
-
2013
- 2013-08-23 CN CN201320519435.8U patent/CN203560635U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883097A (en) * | 2017-12-25 | 2018-04-06 | 新乡平原航空液压设备有限公司 | Determine core joint and the adapter assembly of core joint is determined using this |
| CN109488825A (en) * | 2018-12-07 | 2019-03-19 | 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 shutdown pipe fitting with hydraulic oil liquid block function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203560635U (en) | Self-sealing joints and airport valve of hydraulic system utilizing same | |
| CN104568329B (en) | A kind of test method and device testing jacking construction device sealing property | |
| CN104061348B (en) | The dual circuit flexible pipe explosive valve that action flow is adjustable | |
| CN201531647U (en) | Rapid switching valve | |
| CN203718228U (en) | Quick connector for airtight test | |
| CN205842067U (en) | A kind of steering joint with filter screen | |
| CN202360970U (en) | Filling valve | |
| CN201738915U (en) | Sealing and suppressing device of well sealing device for oil field | |
| CN103644426B (en) | A kind of hermetically sealed magnetic control pipeline valve | |
| CN104897384A (en) | Hydrostatic test system and hydrostatic test method for valve body casting | |
| CN204914342U (en) | Compound die protecgulum hydraulic fluid port connection structure | |
| CN202834531U (en) | Duplex three-way connection pipe | |
| CN209195867U (en) | A kind of hydraulic cleaning testing equipment | |
| CN208719673U (en) | A kind of hydraulic quick connection transmitter | |
| CN202132632U (en) | Flange joint leakproof device | |
| CN209524166U (en) | Steel strip reinforced pipe connections | |
| CN207599062U (en) | Safety valve with emulsion recycling function | |
| CN208203260U (en) | Live well control device pressure test tool | |
| CN105305327A (en) | Low pressure cable sealing device and manufacturing method thereof | |
| CN105372008A (en) | Test port for fuel dispenser | |
| CN201351597Y (en) | Filling valve of pressure transmitting oil well pump | |
| CN104791568B (en) | Quick plug device under water with flexible member | |
| CN204756235U (en) | Coupling that area cut off function | |
| CN205665150U (en) | High -voltage metal pipeline corrosion coupon monitoring devices that does not stop production | |
| CN204239932U (en) | The linkage structure of pipe and flange |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20170308 |