CN202597983U - Quick coupling with steel ball locking structure - Google Patents
Quick coupling with steel ball locking structure Download PDFInfo
- Publication number
- CN202597983U CN202597983U CN 201220269251 CN201220269251U CN202597983U CN 202597983 U CN202597983 U CN 202597983U CN 201220269251 CN201220269251 CN 201220269251 CN 201220269251 U CN201220269251 U CN 201220269251U CN 202597983 U CN202597983 U CN 202597983U
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- China
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- steel ball
- male connector
- negative joint
- movable sheath
- male
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- Expired - Fee Related
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model provides a quick coupling with a steel ball locking structure. The quick coupling comprises a male coupling 8, a female coupling 9 and a steel ball locking device, wherein a movable valve core is arranged in one side of the female coupling or in the two sides of the female and male couplings; a movable sleeve 2 is arranged in a male coupling body 1, and meanwhile, a movable sleeve pushing piece 5 is arranged in a female coupling body 31; and the movable sleeve and the movable sleeve pushing piece are isolated between a runner and the steel ball 4 locking device. Compared with the prior art, the quick coupling has the advantages that when the quick coupling is switched on, an inner cavity of the male coupling body with a steel ball limiting groove is not directly impacted by media, so the deformation of the male coupling body, which is caused by high pressure impact of the working media, is prevented, and the safety and the reliability of the quick coupling with the steel ball locking structure are guaranteed.
Description
Technical field
The utility model relates to a kind of rapid pipe joint, especially adopt the rapid pipe joint with steel ball lock fixed structure of yin-yang structure, belong to the quick interconnection technique of pipe field in the mechanical engineering with steel ball lock fixed structure.
Background technique
Be in the pipe-line system of working medium with oil, gas, water, rapid pipe joint is through being commonly used to realize the quick disconnection or the connection of pipeline.Wherein the most commonly used is the rapid pipe joint of yin-yang structure; Generally be to comprise negative joint and male connector; Be divided into self-styled two kinds of one-sided and bilateral by the self-styled situation of joint, one-sided only being meant has from seal structure in negative joint one side, and bilateral then is all to have from seal structure with male and female connector.The part that pushes that pushes this one-way valve spool that is provided with in so-called one-way valve that in seal structure is meant a side connector, is provided with and the opposite side joint.The spool of the one-way valve in negative joint or the male connector is sealing surface with the cylndrical surface, and with the other side's joint spool identical end face and two end faces to be arranged are sealing surfaces and push part.When the male and female connector interfix, pushing part backs down spool and makes the one-way valve conducting and through pushing the flow passage that part one side is provided with, during two splice failures, be in cut-off state from seal structure and stop dielectric leakage.
The male and female connector of rapid pipe joint for preventing to get loose in the work, also need be locked after connecting.Said locking generally divides two kinds of manpower locking and mechanical interlockings.What wherein the rapid pipe joint general work time of manpower locking was short, working condition is good and manpower can be controlled, like tyre inflation etc., Chinese utility model patent CN200820164849.2 disclosed " self sealing rapid pipe joint " is just belong to this type.But the quick pipe connecting that some long operating time, working condition is poor, should not manpower control then need adopt mechanical interlocking usually.And a kind of locking mechanism with steel ball is arranged in the mechanical interlocking; Usually; Rapid pipe joint with steel ball lock fixed structure is on male connector one side shell (sun is followed a body, pushed part) outer cylinder, the steel ball restraining groove that supplies steel ball to snap in to be arranged; On the negative joint one side shell (negative joint body) radial hole is arranged, the hole less than the diameter at outer wall one end, has the steel ball of diameter circle diameter in the two ends, hole to place in the hole at the diameter of inwall one end; Active part (spool) is arranged, the external moving sleeve that the radial position of control steel ball is arranged of negative joint in the negative joint body.Promoting overcoat during work, that steel ball can be done is radially movable, and male and female connector pushes part and pushes active part and the steel ball restraining groove is arrived under the steel ball and snapped in by steel ball when inserting, and loosens behind the overcoat steel ball and loses radially move place and both are locked.
China utility model patent CN201020170004.1 " rapid pipe joint " is disclosed to be a kind of one-sided steel ball lock fixed structure in the rapid pipe joint of seal structure that is applied in.
Also has of the rapid pipe joint of a kind of bilateral from seal structure; Coaxial installation pushes part in the negative joint body; Negative joint body and push movable spool is arranged between the part; Coaxial installation activity spool in male connector body (being the part that pushes to movable spool in the socket simultaneously) is controlled by the part that pushes in the negative joint body.Runner is to push blind hole that the opening in the part communicates with interface, the blind hole bottom side blind hole that movable spool split shed communicates with interface in movable spool split shed and side direction through hole at the bottom of the blind hole that interface communicates, the male connector body in through hole, male connector body inner chambers, male connector body in the negative joint body.
In the male connector body of above-mentioned rapid pipe joint with steel ball lock fixed structure promptly is runner; Therefore it is at work like pressure medium when excessive; The steel ball restraining groove will produce certain deformation with the expansion of male connector body; Can cause steel ball to be choked when serious, make moving sleeve be difficult to push and shift out steel ball by the distortion of groove.When this phenomenon takes place then rapid pipe joint disconnection or attended operation difficulty will take place, possibly also can cause operating irregularity.
Summary of the invention
To above-mentioned deficiency, the utility model be exactly to propose a kind of can bear high-pressure working medium, operating security has the rapid pipe joint of steel ball lock fixed structure reliably.
The rapid pipe joint with steel ball lock fixed structure of the utility model comprises male connector, negative joint and steel ball locking device; The formation of said steel ball locking device is that the steel ball restraining groove that supplies steel ball to snap in is arranged on the external cylinder of male connector; On the negative joint body radial hole is arranged; The hole at the diameter of inwall one end less than diameter at outer wall one end; There is the steel ball of diameter circle diameter to place in the hole, the external moving sleeve that the radial position of control steel ball is arranged of negative joint in the two ends, hole; In negative joint one side or the male and female connector both sides movable spool is arranged; In the male connector body, movable sheath is set, in the negative joint body, movable sheath is set simultaneously and pushes part, set movable sheath and movable sheath push part and are isolated between runner and the steel ball locking device.
The rapid pipe joint with steel ball lock fixed structure of the utility model; Between original structure runner and male connector body, added one deck movable sheath again and movable sheath pushes part, made to constitute new runner, thereby compared with prior art; The utility model is when the work of connection; Make the inner chamber of the male connector body that has the steel ball restraining groove directly not meet with the impact of medium, avoided the male connector body to receive the impacting with high pressure deformation of working medium, guaranteed to have the safety reliability of the rapid pipe joint of steel ball lock fixed structure.
Description of drawings
The sectional view of the rapid pipe joint with steel ball lock fixed structure that Fig. 1 makes the transition for this practicality is among the figure: 1-male connector body, 2-movable sheath, 21-movable sheath spring, 22-moving sleeve; 3-sun core, 31-negative joint body, the 4-steel ball, the 5-movable sheath pushes part, 51-moving sleeve spring; The 52-big envelope, the cloudy core of 6-, 61-big envelope spring, 7-runner; The cloudy core spring of 71-, the cloudy core spring seat of 72-, 8-male connector, 9-negative joint.
Embodiment
Below in conjunction with Fig. 1 the rapid pipe joint with steel ball lock fixed structure of the utility model is done further to describe:
What Fig. 1 showed is a kind of rapid pipe joint of bilateral self sealing.Wherein coaxial in the male connector 8 with the male connector body 1 that has been threaded, also coaxially in the endoporus of male connector body be fixed with positive core 3, positive core flange-like root has some little open-works, and the positive stem stem face external space is communicated with the male connector interface.Between male connector body and positive core, also be coaxially installed with movable sheath 2, the movable sheath rear end is connected with positive core through movable sheath spring 21, and it is the movable sheath spring seat that step is arranged on the positive core flange-like root.There are a bulge loop and male connector body inwall to make Spielpassung on the movable sheath outer cylinder.The interior outer cylinder of this movable sheath front end forms sealing surface with positive core front end outer cylinder and male connector body front end inner cylinder respectively, and seal ring is respectively arranged on the sealing surface.Sun core front end external diameter greater than after part, male connector movable sheath front inner diameter less than after part, form between positive core and the male connector movable sheath with the male connector interface between the positive stem stem external space that is communicated with.It is the steel ball restraining groove that one circle groove is arranged on the outer cylinder of male connector body.
Coaxial in the negative joint 9 with the negative joint body 31 that has been threaded; Also be coaxially installed with cloudy core 6 in the endoporus of negative joint body; Cloudy core rear end is connected with negative joint through cloudy core spring 71, and the coaxial cloudy core spring spring seat 72 that is fixed with hollow is in order to connect cloudy core spring in the negative joint interface.Cloudy core has opening to point to the blind hole of cloudy core spring spring seat, and the side direction through hole is arranged at the blind hole bottom.Between negative joint body and cloudy core, also with the beam warp screw thread movable sheath is installed and pushes part 5, inner cylinder and cloudy core front end outer cylinder that movable sheath pushes the part front end form sealing surface, seal ring on the sealing surface; Cloudy core front end external diameter greater than after part; Movable sheath push the part front inner diameter less than after part; Cloudy core pushes the cloudy stem stem external space that formation is communicated with the negative joint interface between the part with movable sheath, and it is runner that male connector interface, the positive stem stem external space, the cloudy stem stem external space and negative joint interface are communicated with.On the negative joint body radial hole is arranged, the hole less than the diameter at outer wall one end, has the steel ball 4 of diameter circle diameter in the two ends, hole to place in the hole at the diameter of inwall one end.The external moving sleeve 22 that the radial position of control steel ball is arranged of negative joint, the moving sleeve rear end is connected with negative joint through moving sleeve spring 51.The moving sleeve inwall is a step, and is pre-large post-small, and when the moving sleeve length of spring compressed, moving sleeve large diameter part is corresponding with steel ball, makes steel ball from the retraction of negative joint body inwall; And when movable spring discharged, the little inner-diameter portion whose of moving sleeve was corresponding with steel ball, made steel ball protrude in negative joint body inwall.When male and female connector was inserted mutually, steel ball snapped in the steel ball restraining groove on the male connector body.Push at negative joint body and movable sheath a big envelope 52 also is installed between the part, the big envelope rear end is connected with negative joint through the big envelope spring.The interior outer cylinder of big envelope front end pushes part front end outer cylinder with movable sheath respectively and negative joint body front end inner cylinder is made Spielpassung, makes its At time of eject that movable sheath is pushed the space sealing between part and the negative joint body front end.
Aforementioned movable sheath spring, cloudy core spring, moving sleeve spring and big envelope spring all are coaxial spiral cylinder springs.Between movable sheath and the male connector body, cloudy core and movable sheath pushes between the part, between moving sleeve and the negative joint body and between big envelope and the negative joint body all in making their stop bits in the stop bit step that belongs to the joint front end separately.Sun core front end end face and cloudy core front end end face, male connector body front end end face and big envelope front end end face, movable sheath front end end face and movable sheath push part front end end face each are identical and form respectively that side control opposite side ejects or the structure of retraction, and the said end face of respectively organizing forms sealing surface when male and female connector joins.More than be meant direction pointed when the yin, yang joint joins before said.
The rapid pipe joint of the utility model; When the work of connection; The butt joint of its yin, yang core and movable sheath push and have formed one after part, movable sheath dock and can supply medium to circulate; From the toroidal cavity of a side interface to opposite side interface, that is: working medium is flowed into by the male connector interface, is exported by the negative joint interface through runner; Working medium maybe can be carried by the opposite direction of above-mentioned direction.Having movable sheath and movable sheath to push part between medium and the steel ball locking framework isolates.
Rapid pipe joint for one-sided self sealing; The male connector body is for pushing part; Movable spool is arranged in the negative joint body, a movable sheath can be set in the male connector body, at the moving valve in-core one movable sheath is set and pushes part; Movable sheath pushes part has opening blind hole forward, and the blind hole rear end has side direction aperture and movable spool to constitute one-way valve.Movable spool rear end outer cylinder also constitutes sealing surface with negative joint body internal diameter.Said one-way valve conducting when movable spool is retreated and ending when advancing, make the negative joint interface through negative joint body rear end, movable spool rear end, movable sheath push the part front end, activity is set to male connector body interface and constitutes runner.
This part protection main points are that runner and steel ball locking framework are isolated, and last section is the simple description of one-sided self sealing, thereby makes this case can protect the rapid pipe joint of single bilateral self sealing.
Claims (1)
1. rapid pipe joint with steel ball lock fixed structure comprises male connector, negative joint and steel ball locking device; The formation of said steel ball locking device is that the steel ball restraining groove that supplies steel ball to snap in is arranged on the external cylinder of male connector; On the negative joint body radial hole is arranged; The hole at the diameter of inwall one end less than diameter at outer wall one end; There is the steel ball of diameter circle diameter to place in the hole, the external moving sleeve that the radial position of control steel ball is arranged of negative joint in the two ends, hole; In negative joint one side or the male and female connector both sides movable spool is arranged; It is characterized in that in the male connector body, movable sheath being set, in the negative joint body, movable sheath is set simultaneously and pushes part, set movable sheath and movable sheath push part and are isolated between runner and the steel ball locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269251 CN202597983U (en) | 2012-06-08 | 2012-06-08 | Quick coupling with steel ball locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269251 CN202597983U (en) | 2012-06-08 | 2012-06-08 | Quick coupling with steel ball locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597983U true CN202597983U (en) | 2012-12-12 |
Family
ID=47315523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269251 Expired - Fee Related CN202597983U (en) | 2012-06-08 | 2012-06-08 | Quick coupling with steel ball locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597983U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742740A (en) * | 2013-12-17 | 2014-04-23 | 浙江松乔气动液压有限公司 | Quick connector working under pressure |
| CN108278432A (en) * | 2018-03-05 | 2018-07-13 | 新乡平原航空液压设备有限公司 | A kind of quick coupling and its famale connector |
| CN112728257A (en) * | 2020-12-09 | 2021-04-30 | 上海群力紧固件制造有限公司 | Self-sealing connector |
-
2012
- 2012-06-08 CN CN 201220269251 patent/CN202597983U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742740A (en) * | 2013-12-17 | 2014-04-23 | 浙江松乔气动液压有限公司 | Quick connector working under pressure |
| CN103742740B (en) * | 2013-12-17 | 2016-01-13 | 浙江松乔气动液压有限公司 | A kind of rapid pipe joint of work with pressure |
| CN108278432A (en) * | 2018-03-05 | 2018-07-13 | 新乡平原航空液压设备有限公司 | A kind of quick coupling and its famale connector |
| CN112728257A (en) * | 2020-12-09 | 2021-04-30 | 上海群力紧固件制造有限公司 | Self-sealing connector |
| CN112728257B (en) * | 2020-12-09 | 2022-08-16 | 上海群力紧固件制造有限公司 | Self-sealing connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 316111 Zhoushan, Putuo District Zhujiajian street, Po Road, No. 8, No. Patentee after: Zhejiang run machinery Co., Ltd. Address before: 316100 Zhejiang city of Zhoushan province Putuo District Shenjiamen Marine Park Street Run Road No. 18 Bai Patentee before: Zhejiang Baorun Hydraulic Co., Ltd. |
|
| 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: 20121212 Termination date: 20180608 |