CN206377383U - Snap joint - Google Patents

Snap joint Download PDF

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Publication number
CN206377383U
CN206377383U CN201621424517.4U CN201621424517U CN206377383U CN 206377383 U CN206377383 U CN 206377383U CN 201621424517 U CN201621424517 U CN 201621424517U CN 206377383 U CN206377383 U CN 206377383U
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CN
China
Prior art keywords
valve element
valve
valve core
connecting portion
ring
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Active
Application number
CN201621424517.4U
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Chinese (zh)
Inventor
楼仲宇
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ZHEJIANG SONGQIAO PNEUMATIC AND HYDRAULIC Co Ltd
Original Assignee
ZHEJIANG SONGQIAO PNEUMATIC AND HYDRAULIC Co Ltd
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Priority to CN201621424517.4U priority Critical patent/CN206377383U/en
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Publication of CN206377383U publication Critical patent/CN206377383U/en
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Abstract

The utility model is related to a kind of attachment means of fast assembling-disassembling, especially snap joint.Snap joint, including public plug and mother socket, public plug includes plug, valve element A and valve seat A, valve element A includes valve core head A, valve element connecting portion A and valve core rod A, groove is equipped with the middle part of valve element connecting portion A, groove front and rear sides are round estrade, valve element connecting portion A outer walls are cased with valve element O-ring A, plug outer wall is provided with back stop slot, mother socket includes housing, valve element B and valve seat B, valve element B includes valve core head B, valve element connecting portion B and valve core rod B, groove is equipped with the middle part of valve element connecting portion B, groove front and rear sides are round estrade, valve element connecting portion B outer walls are cased with valve element O-ring B, housing left end outer wall is provided with overcoat, the overcoat connects steel ball, steel ball passes through housing.Usefulness of the present utility model:Valve element connecting portion A is provided with after groove, and pre-small post-large to form annular tip, valve element O-ring puts in easily, difficult for drop-off, lift-off seal effect.

Description

Snap joint
Technical field
The utility model is related to a kind of attachment means of fast assembling-disassembling, especially snap joint.
Background technology
Snap joint includes hydraulic quick coupling and various fluid quick joints, and it is a kind of quick connection or off-tube Road, realizes the attachment means of fast assembling-disassembling.Because there is dual check function pipeline to disconnect No leakage for snap joint, therefore in stone Oil, metallurgy, water power, engineering machinery, ship, electromechanical equipment etc. are widely used in field.Connecting structure for quick coupling is The most important part of snap joint, its connected mode and structure directly determines the ease of use of snap joint, reliability And product quality.Snap joint is made up of public plug and mother socket two parts, and the valve element in public plug and mother socket is generally cased with Valve element O-ring, but valve element outer wall is smooth, valve element O-ring easily loosens, and influences sealing effectiveness.
The content of the invention
In order to solve the technical problem that above-mentioned valve element O-ring easily loosens influence sealing effectiveness, the utility model provides fast Quick coupling.
The technical solution of the utility model is as follows:
Snap joint, including public plug and mother socket, public plug are included in the middle part of plug, valve element A and valve seat A, the plug Inwall is fixed with valve seat A, the valve seat A and is smoothly provided with slidable valve element A, and valve element A includes valve core head A, valve element and connected Portion A and valve core rod A, valve core rod A are connected by valve element connecting portion A with valve core head A, and valve core rod A is contacted with valve seat A, valve core head A from Left-to-right is round platform A, cylinder A and round platform B successively, and round platform A and round platform B diameter are from left to right reduced successively, plug and circle Cylinder A wall contacts, round platform A outer walls and the laminating of plug inwall inclined-plane, round platform B are exposed, are equipped with the middle part of valve element connecting portion A recessed Groove, groove front and rear sides are round estrade, and from left to right diameter increases round estrade successively, and it is O-shaped that valve element connecting portion A outer walls are cased with valve element A is enclosed, valve element O-ring A is contacted with valve core head A, and valve element O-ring A is contacted with plug inwall, and valve core rod A is cased with valve element bonnet A, valve Core bonnet A is fastened on valve element O-ring A, and valve core spring A is provided between the valve element bonnet A and valve seat A, and plug outer wall is provided with Back stop slot to block steel ball, mother socket includes housing, valve element B and valve seat B, and the rear inwall is fixed with valve seat Slidable valve element B is smoothly provided with B, the valve seat B, valve element B includes valve core head B, valve element connecting portion B and valve core rod B, valve element Bar B is connected by valve element connecting portion B with valve core head B, and valve core rod B is contacted with valve seat B, and valve core head B is round platform successively from right to left C, cylinder B and round platform D, round platform C and round platform D diameter are reduced successively from right to left, housing and cylinder B wall contacts, circle Platform C outer walls and the laminating of inner walls inclined-plane, round platform B are exposed in housing front portion, and groove is equipped with the middle part of valve element connecting portion B, recessed Groove front and rear sides are round estrade, and diameter increases round estrade successively from right to left, and valve element connecting portion B outer walls are cased with valve element O-ring B, Valve element O-ring B is contacted with valve core head B, and valve element O-ring B is contacted with inner walls, and valve core rod B is cased with valve element bonnet B, valve element valve Cap B is fastened on valve element O-ring B, and valve core spring B is provided between the valve element bonnet B and valve seat B, and housing left end outer wall is provided with Overcoat, the overcoat connects steel ball, and steel ball passes through housing.
Using the technical solution of the utility model, the seal of valve uses PTFE material, and being adapted to high purity chemical fluid should With;Main material passes through milled processed, and corrosion resistance is greatly improved;When joint disconnects, valve element is closed automatically, prevent leakage; After joint connection, valve is automatically turned on, and in nominal working range, remains the unobstructed of fluid;Reliable ball latch mechanism is by phase The two halves of matching are partially bonded together;Round table-like head is compared to the head of depression arc, and runner has been reduced, but processing letter Easily, durable, effect is very good in the impact of the slow pulse of resistance high-velocity fluid and solution, and is arranged with the multi-layer sealed protection of inwall Apply, improve the performance parameter of snap joint;Valve element connecting portion is provided with after groove, pre-small post-large to form annular tip, and valve element is O-shaped Circle puts in easily, but takes down because tip is withstood, very difficult, difficult for drop-off, lift-off seal effect, and easy to connect fast Prompt, intensity is high, resistance to deficient property is good, and operating pressure is up to reachable -40 DEG C to 200 DEG C of 35MPa, high temperature resistant, and plug access times can Up to 500,000 times.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model mother socket;
Fig. 3 is the structural representation of the utility model public plug.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment
Snap joint as shown in Figure 1, 2, 3, including public plug and mother socket, public plug include plug 1, valve element A2 and valve Seat A3, the left side outer wall of plug 1 is hexagon shape, and process operation is convenient, and the middle part inwall of plug 1 is fixed with valve seat A3, institute State and slidable valve element A2 is smoothly provided with valve seat A3, valve element A2 includes valve core head A, valve element connecting portion A and valve core rod A, valve element Bar A is connected by valve element connecting portion A with valve core head A, and valve core head A is located at the right side of plug 1, and valve core rod A is contacted with valve seat A3, valve Core print A is from left to right round platform A15, cylinder A16 and round platform B17 successively, and round platform A15 and round platform B17 diameter are from left to right Reduce successively, plug 1 and cylinder A16 wall contacts, round platform A15 outer walls and the laminating of the inwall inclined-plane of plug 1, such sealing effectiveness More preferably, valve element O-ring A4 sealings are coordinated, round platform B17 is exposed, is equipped with groove in the middle part of valve element connecting portion A, groove front and rear sides are Round estrade, from left to right diameter increases round estrade successively, and valve element connecting portion A outer walls are cased with valve element O-ring A4, valve element O-ring A4 Contacted with valve core head A, valve element O-ring A4 is contacted with the inwall of plug 1, valve core rod A is cased with valve element bonnet A14, valve element bonnet A14 cards It is located on valve element O-ring A4, valve core spring A6 is provided between the valve element bonnet A14 and valve seat A3, the outer wall of plug 1, which is provided with, is used to The back stop slot of steel ball 8 is blocked, mother socket includes housing 18, valve element B23 and valve seat B20, and the rear inside wall of housing 18 is fixed and set Have and slidable valve element B23 is smoothly provided with valve seat B20, the valve seat B20, valve element B23 includes valve core head B, valve element connecting portion B It is located at the left part inwall of housing 18 with valve core rod B, valve core head B, valve core rod B is connected by valve element connecting portion B with valve core head B, valve Core bar B is contacted with valve seat B20, and valve core head B is round platform C, cylinder B and round platform D successively from right to left, and round platform C and round platform D's is straight Footpath is reduced successively from right to left, housing 18 and cylinder B wall contacts, round platform C outer walls and the laminating of the inwall inclined-plane of housing 18, round platform B17 be exposed at housing 18 it is anterior in, be equipped with groove in the middle part of valve element connecting portion B, groove front and rear sides are round estrade, round estrade from The right side increases successively to left diameter, and valve element connecting portion B outer walls are cased with valve element O-ring B7, and valve element O-ring B7 is contacted with valve core head B, valve Core O-ring B7 is contacted with the inwall of housing 18, and valve core rod B is cased with valve element bonnet B13, and valve element bonnet B13 is fastened on valve element O-ring B7 On, valve core spring B12 is provided between the valve element bonnet B13 and valve seat B20, the left end outer wall of housing 18 is provided with overcoat 22, described Overcoat 22 connects steel ball 8, and steel ball 8 passes through housing 18, and outer casing spring 9 is provided between overcoat 22 and housing 18.
In use, valve seat A3 and the junction of plug 1 are provided with valve provided with valve seat back-up ring A5, valve seat B20 and the junction of housing 18 Seat back-up ring B11, the anterior outer wall of housing 18 is provided with overcoat back-up ring 10, and for spacing overcoat 22, the front inner wall of housing 18 is provided with housing O Type circle 21, in order to improve sealing effectiveness, the insertion housing 18 of plug 1, steel ball 8 pins back stop slot, and connection when exiting, departs from steel ball 8 , because valve element O-ring A4 is withstood in annular tip 19, even if fluid impact, valve element O-ring A4 is not easy to movement and come off, and protects Hold good seal performance.

Claims (1)

1. snap joint, including public plug and mother socket, it is characterised in that:Public plug includes plug(1), valve element A(2)And valve seat A(3), the plug(1)Middle part inwall is fixed with valve seat A(3), the valve seat A(3)On smoothly be provided with slidable valve element A (2), valve element A(2)Including valve core head A, valve element connecting portion A and valve core rod A, valve core rod A passes through valve element connecting portion A and valve core head A Connection, valve core rod A and valve seat A(3)Contact, valve core head A is from left to right round platform A successively(15), cylinder A(16)With round platform B (17), round platform A(15)With round platform B(17)Diameter from left to right reduce successively, plug(1)With cylinder A(16)Wall contacts, Round platform A(15)Outer wall and plug(1)Inwall inclined-plane is fitted, round platform B(17)It is exposed, groove is equipped with the middle part of valve element connecting portion A, it is recessed Groove front and rear sides are round estrade, and from left to right diameter increases round estrade successively, and valve element connecting portion A outer walls are cased with valve element O-ring A (4), valve element O-ring A(4)Contacted with valve core head A, valve element O-ring A(4)With plug(1)Inwall is contacted, and valve core rod A is cased with valve element Bonnet A(14), valve element bonnet A(14)It is fastened on valve element O-ring A(4)On, the valve element bonnet A(14)With valve seat A(3)Between Provided with valve core spring A(6), plug(1)Outer wall is provided with to block steel ball(8)Back stop slot, mother socket include housing(18), valve Core B(23)With valve seat B(20), the housing(18)Rear inside wall is fixed with valve seat B(20), the valve seat B(20)It is upper smooth Provided with slidable valve element B(23), valve element B(23)Including valve core head B, valve element connecting portion B and valve core rod B, valve core rod B passes through valve Core connecting portion B is connected with valve core head B, valve core rod B and valve seat B(20)Contact, valve core head B is round platform C, cylinder successively from right to left Body B and round platform D, round platform C and round platform D diameter are reduced successively from right to left, housing(18)With cylinder B wall contacts, round platform C Outer wall and housing(18)Inwall inclined-plane is fitted, round platform B(17)It is exposed at housing(18)In anterior, ring is set in the middle part of valve element connecting portion B Fluted, groove front and rear sides are round estrade, and diameter increases round estrade successively from right to left, and valve element connecting portion B outer walls are cased with valve Core O-ring B(7), valve element O-ring B(7)Contacted with valve core head B, valve element O-ring B(7)With housing(18)Inwall is contacted, valve core rod B is cased with valve element bonnet B(13), valve element bonnet B(13)It is fastened on valve element O-ring B(7)On, the valve element bonnet B(13)And valve seat B(20)Between be provided with valve core spring B(12), housing(18)Left end outer wall is provided with overcoat(22), the overcoat connection steel ball(8), Steel ball(8)Through housing(18).
CN201621424517.4U 2016-12-23 2016-12-23 Snap joint Active CN206377383U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621424517.4U CN206377383U (en) 2016-12-23 2016-12-23 Snap joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621424517.4U CN206377383U (en) 2016-12-23 2016-12-23 Snap joint

Publications (1)

Publication Number Publication Date
CN206377383U true CN206377383U (en) 2017-08-04

Family

ID=59407422

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621424517.4U Active CN206377383U (en) 2016-12-23 2016-12-23 Snap joint

Country Status (1)

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CN (1) CN206377383U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108317324A (en) * 2018-04-28 2018-07-24 浙江松乔气动液压有限公司 Quick coupling
CN110594512A (en) * 2019-10-11 2019-12-20 安徽科德森机械有限公司 One-way double-sealing hydraulic quick-change connector
WO2021119955A1 (en) * 2019-12-16 2021-06-24 苏州信运比尔精密机械有限公司 Pipeline quick connecting device
CN114233958A (en) * 2021-12-03 2022-03-25 北方导航控制技术股份有限公司 High-sealing self-sealing quick joint

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108317324A (en) * 2018-04-28 2018-07-24 浙江松乔气动液压有限公司 Quick coupling
CN110594512A (en) * 2019-10-11 2019-12-20 安徽科德森机械有限公司 One-way double-sealing hydraulic quick-change connector
WO2021119955A1 (en) * 2019-12-16 2021-06-24 苏州信运比尔精密机械有限公司 Pipeline quick connecting device
CN114233958A (en) * 2021-12-03 2022-03-25 北方导航控制技术股份有限公司 High-sealing self-sealing quick joint

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