CN104344129B - Fast connector for operation under pressure - Google Patents
Fast connector for operation under pressure Download PDFInfo
- Publication number
- CN104344129B CN104344129B CN201410560102.9A CN201410560102A CN104344129B CN 104344129 B CN104344129 B CN 104344129B CN 201410560102 A CN201410560102 A CN 201410560102A CN 104344129 B CN104344129 B CN 104344129B
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- CN
- China
- Prior art keywords
- seal receptacle
- pressure release
- valve body
- valve element
- push rod
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
- F16L37/40—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings with a lift valve being opened automatically when the coupling is applied
Abstract
The invention discloses a fast connector for operation under pressure. The fast connector comprises a male connector and a female connector, wherein the male connector comprises a valve body, a valve element and a male connector cap, and a first reset spring which is used for keeping the valve element to have the trend of moving forwards is arranged on the valve element; the fast connector further comprises a sealing seat, wherein the sealing seat can move in the valve body, the side surface of the sealing seat can be tightly matched with the inner side wall of the valve body, a pressure release hole is formed in the front part of the sealing seat, and an inner cavity of the front part of the sealing seat is communicated with the periphery of the front part of the sealing seat through the pressure release hole; the pressure release rod is provided with push rods and a protrusion part, the push rods comprise a first push rod and a second push rod, at least part of the first push rod is inserted into a first guide groove which is formed in the back part of the valve element, and the outer diameter of the second push rod is less than the inner diameter of the inner cavity of the front part of the sealing seat; the protrusion part can be used for closing or opening the back end of the inner cavity of the front part of the sealing seat; the spring seat is fixed in the male connector, at least part of the back part of the pressure release rod is inserted into a second guide groove of the spring seat, and a second reset spring which is used for keeping the pressure release rod to have the trend of moving forwards is arranged on the pressure release rod.
Description
Technical field
The present invention relates to a kind of snap joint, especially a kind of can be with the snap joint of press operation.
Background technology
In fluid pressure line connects, the application of snap joint is quite varied, and this is that one kind does not need by instrument with regard to energy in fact
Existing pipeline connection or the joint of disconnection, bring great convenience to the installation and maintenance of hydraulic system.
A kind of hydraulic quick coupling as disclosed in the Chinese patent of Application No. 201120067425.6, including male joint and
Female joint assembly, female joint assembly includes fittings body, belled body and movable sheath body, and the fixation of belled body one end is set in fittings body one
Outside end, it is provided with flap in joint body and is arranged on the compression spring that flap corresponds to belled body side, however, due to hydraulic pressure system
The particularity of system, above-mentioned this snap joint, during two male and female connector docking, in two pipelines of connection, there is the larger back of the body
Pressure, this back pressure acts directly on the flap of snap joint.And the area of flap is larger, flap needs the pressure overcoming very
Greatly, moved it with handss operation flap thus turn on pipeline in practical operation very difficult it is necessary to by the liquid pressure in pipeline
Just can be plugged after power release, be made troubles to connecting work.
For this reason, Chinese patent quickly the connecing to above-mentioned prior art of the Application No. 201320661901.6 of the applicant
Head has been made to improve, the male connector body including hollow with press operation snap joint disclosed in the patent of the applicant, and close-fitting is in sun
The valve element of fittings body leading inside, be connected to male connector body rear end for the joint cap being connected with pipeline, described valve element closing
Male connector body front end, is much smaller than the first push rod and second push rod of valve element by arranging diameter, in the face of same pressure can apply
For the larger valve element of relative diameter (lifting surface area is big), less power just can promote the first push rod, after promoting the second push rod
The inner chamber of joint cap can be with the inner space of male connector body, thus two pipelines turn on.Above-mentioned this joint, needs by crimp head
So that valve element promotes the first push rod action after the valve element of end, until the first push rod moves to continuing after abutting with the second push rod
Promote valve element could promote the second push rod, and the second push rod extends in the valve seat sleeve pipe of valve seat, this make the first push rod with
Valve seat sleeve pipe, the positioning of the second push rod need very accurate；During joint connects, after valve element promotes push rod pressure release, continue
And promoting valve seat to make pipeline connection, the fit structure of spring base, seal receptacle and valve seat is complicated, and installation difficulty is big, the accuracy of manufacture
Have high demands, relatively costly.
Content of the invention
The technical problem to be solved is the problem existing for above-mentioned prior art, provides a kind of structure letter
Band press operation snap joint that is single, being easy to processing.
The technical scheme that present invention solution above-mentioned technical problem is adopted is: a kind of press operation snap joint of band, including sun
Joint and famale connector, described male contact includes the valve body of hollow, close-fitting in the valve element of described valve body leading inside and is connected to institute
State valve rear end for the male contact cap being connected with pipeline, described valve element is enclosed in described valve body front end, and described valve element sets
Have keep valve element have forward movement trend (the first back-moving spring it is characterised in that: also include a seal receptacle, described seal receptacle
Can move in described valve body and valve body can carry out spacing, described seal receptacle side energy foremost to seal receptacle mobile route
With the medial wall close-fitting of described valve body, the front portion of described seal receptacle offers relief hole, described relief hole will be anterior for seal receptacle in
Chamber and the conducting of seal receptacle front periphery；One pressure release bar, described pressure release bar includes positioned at anterior push rod and is located at the prominent of rear portion
Portion, the second push rod that described push rod includes positioned at the first anterior push rod and is located at rear portion, the rear portion of described valve element offers the
One gathering sill, described first push rod is at least partially inserted in described first gathering sill, and the external diameter of described second push rod is less than institute
State the internal diameter of seal receptacle forward lumen；Described protuberance can close described seal receptacle forward lumen rear end, and protuberance is moved back by
Described seal receptacle forward lumen can be made after dynamic certain distance to connect with the body cavity positioned at seal receptacle rear；One spring base, institute
State the front and rear sides connection that spring base is fixed on the position being located at seal receptacle rear in male contact and spring base, described spring
Seat tool has the second gathering sill extending forward, and the rear portion of described pressure release bar is at least partially inserted in the second gathering sill, described lets out
Depression bar is provided with the second back-moving spring keeping pressure release bar to have forward movement trend.
Protuberance movement open or a preferred mode of close encapsulation seat inner chamber is, in the rear portion of described seal receptacle
Offer the first containing cavity and the second containing cavity, described first containing cavity is located at the front portion of the second containing cavity, and described first
The internal diameter of containing cavity is less than the internal diameter of the second containing cavity；The diameter forward end of described protuberance tapers into, before described protuberance
The diameter at end is less than the internal diameter of described first containing cavity, the internal diameter with diameter greater than the first containing cavity of described protuberance rear end, institute
The side stating protuberance can be abutted with the rearward end of described first containing cavity.Optionally, protuberance can also select spheroid, or adopts
Other suitable structures with this area.
Spacing mode unidirectional to seal receptacle is to be provided with radially-inwardly raised flange on the medial wall of described valve body,
When described seal receptacle moves forward side can abut with described flange spacing.
The front end of described seal receptacle has the pressure release portion that diameter reduces, and described relief hole is opened in described pressure release portion；Institute
The rear portion stating valve element has diameter and reduces the first extension extending back, and described first gathering sill is opened in the first extension
Interior, described pressure release portion and the first extension coupling, valve element passes through to promote pressure release portion thus promoting whole seal receptacle to move.
(the first back-moving spring is preferable to provide mode, and described (the first back-moving spring is located at described first extension and pressure release
The periphery in portion, the two ends of described (the first back-moving spring are abutted with the rear portion of described valve element and the front portion of seal receptacle respectively.
Second back-moving spring is preferable to provide mode, and described spring base has chassis, described chassis offers multiple
Hollow-out parts, the two ends of described second back-moving spring are connected on the rear end and described chassis of described protuberance respectively, described chassis
Extend forward and be formed with the second extension, described second gathering sill is opened in chassis and the second extension.
Compared with prior art, it is an advantage of the current invention that: body cavity is divided into two, positioned at middle seal receptacle profit
With directly extruding to be realized sealing with body cavity, there are sealing, pressure release, the triple functions of conducting；The leading of valve element and spring base
To the design of groove, thus realizing two-way positioning to pressure release bar so that pressure release bar is guide post, and energy pressure release is it is ensured that can carry
While press operation, and guide effect is played to valve element and seal receptacle so that when valve element and seal receptacle move back and forth and its stablizing,
And processing can be greatly simplified, the concentricity of pressure release bar, valve element and spring base ensure that, improves the operation of snap joint
Convenience.
Brief description
Fig. 1 is the sectional view with press operation snap joint of the present invention；
Fig. 2 is the decomposition texture schematic diagram with press operation snap joint of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Referring to Fig. 1 and Fig. 2, a kind of press operation snap joint of band, including male contact, for being connected with famale connector, at this
In bright, famale connector can adopt existing common joint.Hereinafter, for ease of description, " front " refers to be connected with famale connector
Direction, and " afterwards " refers to the direction away from famale connector.
Male contact includes the valve body 1 of hollow, and the front end of valve body 1 is provided with valve element 2, and the rear end of valve body 1 is provided with male contact cap 3.
The front inner diameter of valve body 1 reduces, and valve element 2 is placed in the front end of valve body 1, the front end external diameter of valve element 2 and valve body 1 corresponding position
Internal diameter is adapted to, thus forming tight fit, seal ring bracket 12 can be provided with the first sealing ring between valve body 1 and valve element 2
11, in initial not-connected status, due to valve element 2 and valve body 1 be fitted close and the first sealing ring 11 setting, liquid is not
Valve body 1 front end can be passed through in valve body 1 to flow out.Male contact cap 3 is connected to the rear end of valve body 1, and extends partially in valve body 1
Side, male contact cap 3 is used for being connected with pipeline, is provided with the second sealing ring 14, thus preventing liquid between valve body 1 and male contact cap 3
Leakage.
It is provided with seal receptacle 4 in valve body 1, the medial wall of valve body 1 is provided with radially-inwardly raised flange 13, for limiting
The position of seal receptacle 4 so that seal receptacle 4 is when moving forward, spacing and close-fitting when abutting against with flange 13 when side, prevent
Seal receptacle 4 moves further along, passes through between seal receptacle 4 and valve body 1 prevented also from liquid, thus by seal receptacle 4 both sides
Valve body 1 inner chamber isolation.It is equipped with pressure release bar 5, seal receptacle 4 is extended at the two ends of pressure release bar 5 in seal receptacle 4.Before seal receptacle 4
End has the pressure release portion 41 that diameter reduces, and the both sides in pressure release portion 41 offer relief hole 42.Arrange between seal receptacle 4 and valve body 1
There is the 3rd sealing ring 45.
The front portion of pressure release bar 5 is push rod 51, and push rod 51 is included positioned at the first anterior push rod 511 and positioned at rear portion second
Push rod 512, the external diameter of the second push rod 512 is less than the internal diameter of the inner chamber in pressure release portion 41, and the external diameter of the first push rod 511 is then more than the
The external diameter of two push rods 512, the rear portion of valve element 2 has diameter and reduces the first extension 21 backward, opens up in the first extension 21
There is the first gathering sill 22, in first gathering sill 22 at the rear portion being at least partially inserted into valve element 2 of the first push rod 511, first leads
It is adapted to the internal diameter of groove 22 with the external diameter of the first push rod 511.It is provided with (the first back-moving spring 6 between valve element 2 and seal receptacle 4, the
One back-moving spring 6 is located at the periphery in the first extension 21 and pressure release portion 41 so that valve element 2 keeps proal trend.Pressure release
Portion 41 is mated with the first extension 21 so that can promote pressure release portion 41 when the first extension 21 is moved rearwards by.
The rear portion being located at push rod 51 on pressure release bar 5 is provided with protuberance 52, and the diameter forward end of protuberance 52 diminishes and forms
Truncated cone-shaped.The rear portion of seal receptacle 4 offers the first containing cavity 43 and the second containing cavity 44, and the first containing cavity 43 is located at second and houses
The front portion in chamber 44 and internal diameter are less than the second containing cavity 44.The diameter of protuberance 52 front end is less than the internal diameter of the first containing cavity 43,
And the internal diameter with diameter greater than the first containing cavity 43 of protuberance 52 rear end.During initial not-connected status, the lateral wall of protuberance 52
Abut with inside the rearward end of the first containing cavity 43, thus block liquid path, prevent liquid from entering in the first containing cavity 43
Flow out from relief hole 42 by by the gap between the second push rod 512 and pressure release portion 41.
The rearward end of pressure release bar 5 is inserted in a spring base 7, spring base 7 be fixed on male contact cap 3 medial wall so that
Spring base 7 valve body 1 position relatively is fixed.Spring base 7 has chassis 71, and chassis 71 offers multiple hollow-out parts 711, from sun
Pipeline that joint cap 3 connects and the liquid that comes flows through and enters in the hollow-out parts 711 on chassis 71 in valve body 1, be filled in spring base 7
In space and seal receptacle 4 between.Spring base 7 also has the second extension 72 extending forward from chassis 71, the second extension
72 and chassis 71 in offer the second gathering sill 721, the rear portion of pressure release bar 5 is at least partially inserted in the second gathering sill 721.
Be provided with second back-moving spring 8 between pressure release bar 5 and spring base 7 so that pressure release bar 5 keep proal become
Gesture, the two ends of second back-moving spring 8 are connected on protuberance 52 rear end and chassis 71 respectively.
When original state is not connected with famale connector, between the leading section of the leading section of the first push rod 511 and the first gathering sill 22
There may be a certain distance (this distance less it is also possible to the leading section of the leading section of the first push rod 511 and the first gathering sill 22
Abut), when needing to be attached operation, valve body 1 is connected with famale connector, compresses valve element 2, promote valve element 2 to be moved rearwards by, directly
Abut to the leading section of the first push rod 511 and the leading section of the first gathering sill 22；Hereafter, continue to press on valve element 2, valve element 2 promotes
Pressure release bar 5 is moved rearwards by, and now (the first back-moving spring 6 is compressed, and protuberance 52 gradually leaves the first containing cavity 43, due to prominent
The diameter in portion 52 is gradually reduced forward, therefore, during promoting, inside the rearward end of protuberance 52 and the first containing cavity 43
Wall disengaging, valve body 1 inner chamber at seal receptacle 4 rear and pressure release portion 41 inner space, liquid can be entered into by both gaps
In first containing cavity 43, thus by the gap between the second push rod 512 and pressure release portion 41, flowing from the relief hole 42 in pressure release portion 41
Go out, by the inner chamber conducting of seal receptacle 4 both sides in this valve body 1, the fluid pressure in the pipeline of male contact cap 3 is almost nil；This
The less power of Shi Keyong continues to promote valve element 2 again, until the rearward end of valve element 2 is abutted with the front end in pressure release portion 41, then continues
Promote valve element 2, seal receptacle 4 entirety thus can be made to be moved rearwards by, now second back-moving spring 8 is compressed, the outside of seal receptacle 4
Wall is no longer abutted with the medial wall of valve body 1, and liquid can pass through in the gap between seal receptacle 4 and valve body 1, be filled in valve body 1,
In space between seal receptacle 4 and valve element 2；And now valve element 2 has pushed away from the front end of close-fitting valve body 1, thus
The gap that liquid can continue between valve element 2 and valve body 1 is passed through, and enters into famale connector from the front end of valve body 1, and male contact and the moon connect
Two pipeline conductings that head connects respectively.
After two male and female connectors interconnecting separate, valve element 2 is no longer applied with external force, in second back-moving spring 8
In the presence of, gradually promote pressure release bar 5 to reset；Under fluid pressure, seal receptacle 4 is promoted to reset so that being located at sealing in valve body 1
The inner chamber of seat 4 both sides recovers isolation；Hereafter, the restoring force of (the first back-moving spring 6 is applied on valve element 2 so that valve element 2 is multiple
Position, the lumen portion pressure being now located between seal receptacle 4 and valve element 2 in valve body 1 is almost nil, and therefore male contact does not turn on
When, valve body 1 inner chamber is almost nil all the time, and this is that after pressure release bar 5 is departed from seal receptacle 4, pressure release creates condition.
Claims (6)
1. a kind of band press operation snap joint, includings male contact and famale connector, described male contact includes the valve body (1), tightly of hollow
Fit over the valve element (2) of described valve body (1) leading inside and be connected to connecing for the sun being connected with pipeline of described valve body (1) rear end
Head cap (3), described valve element (2) is enclosed in described valve body (1) front end, and described valve element (2) is provided with holding valve element (2) to be had forward
The (the first back-moving spring (6) of mobile trend it is characterised in that: also include
One seal receptacle (4), seal receptacle (4) is located in described valve body (1) and described valve body (1) inner chamber is divided into two parts, described
Seal receptacle (4) can move in described valve body (1) and valve body (1) can limiting to seal receptacle (4) mobile route foremost
Position, described seal receptacle (4) side can be with the medial wall close-fitting of described valve body (1), and the front portion of described seal receptacle (4) offers pressure release
Hole (42), seal receptacle (4) forward lumen and seal receptacle (4) front periphery are turned on by described relief hole (42)；
One pressure release bar (5), the protuberance (52) that described pressure release bar (5) includes positioned at anterior push rod (51) and is located at rear portion, institute
State the second push rod (512) that push rod (51) includes positioned at anterior the first push rod (511) and is located at rear portion, described valve element (2)
Rear portion offers the first gathering sill (22), and described first push rod (511) is at least partially inserted in described first gathering sill (22),
The external diameter of described second push rod (512) is less than the internal diameter of described seal receptacle (4) forward lumen；Described protuberance (52) can close institute
State seal receptacle (4) forward lumen rear end, and protuberance (52) can make described seal receptacle (4) anterior interior after being moved rearwards by certain distance
Chamber and valve body (1) inner space positioned at seal receptacle (4) rear；
One spring base (7), described spring base (7) is fixed on position and the spring base being located at seal receptacle (4) rear in male contact
(7) front and rear sides connection, described spring base (7) has the second gathering sill (721) extending forward, described pressure release bar (5)
Rear portion is at least partially inserted in the second gathering sill (721), and described pressure release bar (5) is provided with holding pressure release bar (5) to be had forward
The second back-moving spring (8) of mobile trend.
2. as claimed in claim 1 with press operation snap joint it is characterised in that: open up in the rear portion of described seal receptacle (4)
There are the first containing cavity (43) and the second containing cavity (44), described first containing cavity (43) is located at the front portion of the second containing cavity (44),
And the internal diameter of described first containing cavity (43) is less than the internal diameter of the second containing cavity (44)；The diameter of described protuberance (52) is forward
End tapers into, and the diameter of described protuberance (52) front end is less than the internal diameter of described first containing cavity (43), described protuberance
(52) internal diameter with diameter greater than the first containing cavity (43) of rear end, the side of described protuberance (52) can be with described first containing cavity
(43) rearward end abuts.
3. as claimed in claim 1 or 2 with press operation snap joint it is characterised in that: set on the medial wall of described valve body (1)
It is equipped with radially-inwardly raised flange (13), when described seal receptacle (4) moves forward, side can abut limit with described flange (13)
Position.
4. as claimed in claim 1 or 2 with press operation snap joint it is characterised in that: the front end of described seal receptacle (4) has
The pressure release portion (41) that diameter reduces, described relief hole (42) is opened in described pressure release portion (41)；The rear portion tool of described valve element (2)
Diameter is had to reduce the first extension (21) extending back, described first gathering sill (22) is opened in the first extension (21),
Described pressure release portion (41) and the first extension (21) coupling.
5. as claimed in claim 4 band press operation snap joint it is characterised in that: described (the first back-moving spring (6) be located at institute
State the first extension (21) and the periphery of pressure release portion (41), the two ends of described (the first back-moving spring (6) respectively with described valve element (2)
Rear portion and seal receptacle (4) anterior abutting.
6. as claimed in claim 1 or 2 band press operation snap joint it is characterised in that: described spring base (7) has chassis
(71), described chassis (71) offers multiple hollow-out parts (711), the two ends of described second back-moving spring (8) are connected to respectively
On the rear end and described chassis (71) of described protuberance (52), described chassis (71) extends forward and is formed with the second extension
(72), described second gathering sill (721) is opened in chassis (71) and the second extension (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410560102.9A CN104344129B (en) | 2014-10-20 | 2014-10-20 | Fast connector for operation under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410560102.9A CN104344129B (en) | 2014-10-20 | 2014-10-20 | Fast connector for operation under pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104344129A CN104344129A (en) | 2015-02-11 |
| CN104344129B true CN104344129B (en) | 2017-01-18 |
Family
ID=52500332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410560102.9A Active CN104344129B (en) | 2014-10-20 | 2014-10-20 | Fast connector for operation under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104344129B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465432B (en) * | 2015-07-31 | 2018-04-24 | 中航光电科技股份有限公司 | A kind of fluid connector pressure release component |
| CN107725814B (en) * | 2017-11-10 | 2023-07-04 | 宁波新佳行自动化工业有限公司 | Switch controllable joint |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT316183B (en) * | 1970-07-01 | 1974-06-25 | Racek Alfred | Filling valve for gas containers |
| CN100538145C (en) * | 2008-04-23 | 2009-09-09 | 宁波中迪机械有限公司 | Self-sealing joint |
| CN201680095U (en) * | 2010-04-14 | 2010-12-22 | 台州市黄岩通禾塑业有限公司 | Female connector of quick connector for air conditioner |
| CN102620089B (en) * | 2012-03-31 | 2014-10-22 | 贾林祥 | Quick tank flushing interface device for liquefied natural gas |
| FR3003331B1 (en) * | 2013-03-12 | 2015-09-18 | Staubli Sa Ets | RAPID COUPLING FEMALE ELEMENT AND RAPID CONNECTION INCLUDING SUCH FEMALE ELEMENT |
| CN203189931U (en) * | 2013-03-22 | 2013-09-11 | 宁波铮华阀门管件有限公司 | Hydraulic quick coupling operated under pressure |
| CN203560645U (en) * | 2013-10-23 | 2014-04-23 | 宁波精艺阀门管件有限公司 | Fast connector for operation under pressure |
| CN204201348U (en) * | 2014-10-20 | 2015-03-11 | 宁波精艺阀门管件有限公司 | The rapid pipe joint of band press operation |
-
2014
- 2014-10-20 CN CN201410560102.9A patent/CN104344129B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104344129A (en) | 2015-02-11 |
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Effective date of registration: 20180823 Address after: 315193 Hu Jia Fen Village, Jiangshan Town, Yinzhou District, Ningbo, Zhejiang Patentee after: Ningbo Zhenghua Hydraulic Co. Ltd. Address before: 315193 Hu Jia Fen Village, Donglin Temple village, Jiangshan Town, Yinzhou District, Ningbo, Zhejiang Patentee before: NINGBO E.H HYDRAULIC CO., LTD. |