CN107975644B - Ultrahigh-pressure zero-leakage quick joint - Google Patents
Ultrahigh-pressure zero-leakage quick joint Download PDFInfo
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- CN107975644B CN107975644B CN201711193758.1A CN201711193758A CN107975644B CN 107975644 B CN107975644 B CN 107975644B CN 201711193758 A CN201711193758 A CN 201711193758A CN 107975644 B CN107975644 B CN 107975644B
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- joint
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- ring
- shell
- ejector rod
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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
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
- F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
Abstract
The utility model provides a zero water clock quick-operation joint of superhigh pressure, including first joint Assembly (1), second joint Assembly (2), connect snap ring (3), screens steel ball (4), connect fender ring (5), sealing washer (6), realize the complete sealing that connects through butt joint and sealing washer (6) of first joint Assembly (1) and second joint Assembly (2), through connecting snap ring (3), screens steel ball (4), connect fender ring (5) and realize the automatic locking that connects behind the butt joint process, rotate when removing the butt joint snap ring (3) and make to connect and withdraw from the lock-out state automatically, under the condition of guaranteeing zero water clock, adopt high pressure resistant material preparation to connect subassembly casing and inside device, guarantee at high pressure, liquid transportation under the airtight condition, and stability is high, moreover, the steam generator is simple in structure.
Description
Technical Field
The invention relates to an ultrahigh-pressure zero-water-drop-leakage quick connector, and belongs to the field of carrier rocket pipeline connection.
Background
The quick connector is a connector which can realize the connection or disconnection of pipelines without tools. In the case of a high plugging frequency of the connector in the system, a quick connector is required to ensure the installation efficiency. The quick connector is divided into two butted connectors, the disconnected state ensures sealing respectively, the internal medium is communicated after connection, and the external part ensures sealing.
At present, the ubiquitous high pressure operating mode of space flight product system, the connection of present ground system pipeline still adopts screw thread or flange joint mode, need connect the pipeline through instrument disconnection or connection during the system change, there is the time requirement, under the frequent operating mode of system change, current pipeline connection mode inefficiency, complex operation, simultaneously under various changeable operating condition, also have certain requirement to pressure tolerance, under the condition of guaranteeing not drippage, need a plug efficiency higher, the higher quick connect joint of reliability.
Disclosure of Invention
The technical problem solved by the invention is as follows: aiming at the connection of the current ground system pipeline, a threaded or flange connection mode is still adopted, and the pipeline connector is disconnected or connected by a tool when the system changes, the quick connection connector with higher plugging efficiency is provided, single-hand butt joint can be realized without special tools, self-locking is realized after butt joint, the operation is reliable, the efficiency is higher, and the pipeline connection time is greatly shortened.
The technical scheme for solving the technical problems is as follows:
an ultrahigh pressure zero-leakage quick joint comprises a first joint component, a second joint component, a joint snap ring, a clamping steel ball, a joint retaining ring and a sealing ring, wherein the first joint component comprises a first joint ejector rod, the second joint component comprises a second joint valve core, the second joint valve core is pushed by a spring through the first joint ejector rod to form internal communication during butt joint, the joint snap ring is sleeved at the joint part of the first joint component and the second joint component, the side wall of the joint snap ring is provided with a groove, the clamping steel ball is arranged in the groove of the side wall of the steel ball joint snap ring and slides into the groove of the side wall of the second joint component during butt joint, the clamping steel ball is blocked by the joint retaining ring arranged at the inner side of the snap ring through rotation of the joint snap ring to realize locking, the sealing ring is arranged at the butt joint part of the first joint component and the second joint component to seal, and is pushed towards the direction of the first joint component until the clamping steel ball is pushed by the joint retaining, the first joint assembly is separated from the second joint assembly under the action of the spring.
The first joint assembly comprises a first joint shell, a first joint ejector rod, a first joint valve seat, a sealing leather cup, a first joint sleeve and a first return spring, wherein the first joint ejector rod, the first joint valve seat, the sealing leather cup, the first joint sleeve and the first return spring are all installed in the first joint shell, the first joint ejector rod is installed in the first joint valve seat and is fixedly connected with a liquid inlet cavity interface of the first joint assembly head end, the first joint ejector rod drives the first joint valve seat and is arranged on the first joint sleeve outside the valve seat to be in butt joint with the second joint assembly during butt joint, the sealing leather cup is arranged at the tail end of the first joint valve seat to be sealed, the first return spring is arranged at the head end of the first joint sleeve, and the first joint sleeve is supported during butt joint.
The second joint assembly comprises a second joint shell, a second joint valve core and a second return spring, the second joint valve core and the second return spring are arranged in the second joint shell, the first joint ejector rod pushes the second joint valve core during butt joint, the second return spring is arranged at the tail end of the second joint valve core and supports the second joint valve core during butt joint, a groove is formed in the side wall of the second joint shell, and the clamping steel ball slides into the groove in the side wall of the second joint shell through the groove in the side wall of the joint snap ring when in butt joint and is clamped and fixed by the joint stop ring.
The groove on the side wall of the second joint shell is V-shaped, the included angle between the groove bottom and the groove wall is 45 degrees, the included angle between the groove wall and the side wall is 15 degrees, and the included angles are all in smooth transition.
The first joint assembly and the second joint assembly are both one-way valves.
The first joint shell is made of stainless steel 1Cr17Ni2, and the tensile strength is 1080 MPa.
The second joint shell is made of stainless steel 1Cr17Ni2, and the tensile strength is 1080 MPa.
Preferably, the sealing leather cup material is nitrile rubber.
Compared with the prior art, the invention has the advantages that:
(1) the ultrahigh-pressure zero-leakage quick connector provided by the invention overcomes the problems that the existing ground system pipeline is still connected by adopting a threaded or flange connection mode, tools are required for connection, the operation is complicated, and the efficiency is low.
(2) According to the joint butt joint structure provided by the invention, the dynamic and static seals in the quick joint are made of the nitrile rubber material, the nitrile rubber has excellent oil resistance, cold resistance, aging resistance and other performances, the use temperature is-55-135 ℃, and the nitrile rubber is widely applied to the dynamic and static seals of aerospace and aviation hydraulic systems, and is most applied to spacecraft hydraulic servo systems; the dynamic seal is the structural style of retaining ring and leather cup, and this sealing pattern has self sealss effect, can bear high pressure, and pressure is higher sealed effect better, can guarantee at the connection in-process zero water clock.
(3) The first joint component and the second joint component are of one-way valve type, and the pipeline tightness of the first joint component and the second joint component can be ensured in a disconnected state; the internal pressure-bearing structure is made of high-strength stainless steel materials, safety margin is considered in structural design, the structural failure strength is higher than 200MPa, and the internal pressure-bearing structure is proved to have higher safety and reliability through tests.
Drawings
FIG. 1 is a schematic view of a quick connector structure according to the present invention;
FIG. 2 is a schematic structural view of a first joint assembly provided by the present invention;
FIG. 3 is a schematic structural view of a second joint assembly provided by the present invention;
Detailed Description
An ultrahigh pressure quick joint without water dripping and leakage is shown in figure 1 and comprises a first joint component 1, a second joint component 2, a joint clamping ring 3, a clamping steel ball 4, a joint baffle ring 5 and a sealing ring 6, wherein the first joint component 1 comprises a first joint shell 101, a first joint ejector rod 102, a first joint valve seat 103, a sealing leather cup 104, a first joint sleeve 105 and a first return spring 106, and the second joint component 2 comprises a second joint shell 201, a second joint valve core 202 and a second return spring 203;
as shown in fig. 2, the first joint sleeve 105 and the first return spring 106 are both installed in the first joint housing 101, the first joint push rod 102 is installed in the first joint valve seat 103 and is fixedly connected with the liquid inlet cavity interface at the head end of the first joint assembly 1, the first joint push rod 102 drives the first joint valve seat 103 and the first joint sleeve 105 arranged outside the valve seat to be butted with the second joint assembly 2 during the butting, the sealing cup 104 is arranged at the tail end of the first joint valve seat 103 for sealing, and the first return spring 106 supports the first joint sleeve 105 during the butting.
As shown in fig. 3, the second joint valve core 202 and the second return spring 203 are both disposed in the second joint housing 201, the first joint plunger 102 pushes the second joint valve core 202 during butt joint, and the second return spring 203 and the second joint valve core 202 support the second joint valve core 202 during butt joint.
The clamping steel balls 4 are placed in the grooves on the side walls of the joint snap rings 3 under the condition that joints are not mutually butted, when the first joint component 1 is butted with the second joint component 2, the first joint mandril 102 of the first joint component 1 pushes the first section of valve core of the second joint component 2 to form internal communication under the pushing action of the first return spring 106, the clamping steel balls 4 are arranged in the grooves on the side walls of the joint snap rings 3 and slide into the grooves on the side walls of the second joint component 2 when the first joint component 1 is butted, the joint snap rings 3 are rotated and drive the joint baffle rings 5 arranged on the inner sides of the snap rings to baffle the clamping steel balls 4 to realize locking, at the moment, the second return springs 203 in the second joint component 2 and the first return springs 106 interact, the external fixation of the joint snap rings 3 ensures the stable connection of the joints, the sealing ring 6 is arranged at the butt joint of the first joint component 1 and the second, when the joint is separated, the joint clamping ring 3 is rotated and pushed towards the direction of the first joint component 1 until the clamping steel balls 4 are popped out after the joint stop ring 5 is displaced, and the first joint component 1 and the second joint component 2 are quickly separated under the action of the spring.
The side wall of the second connector shell 201 is provided with a V-shaped groove, the included angle between the groove bottom and the groove wall is 45 degrees, the included angle between the groove wall and the side wall is 15 degrees, and the included angles are all in smooth transition.
In order to ensure that the clamping steel balls 4 are quickly ejected out of the grooves under the interaction force of the two connectors, the grooves are designed to ensure that the locking state is quickly released. Meanwhile, the joint of the first joint component 1 and the second joint component 2 adopts a ball lock connection structure, so that the stability of the structure is ensured.
The first joint shell 101 and the second joint shell 201 are made of stainless steel 1Cr17Ni2, the tensile strength is 1080MPa, the corrosion resistance is good, and the structural design can ensure that the structure is not damaged under 200 MPa.
The sealing leather cup 104 is made of nitrile rubber, has excellent oil resistance, cold resistance, aging resistance and other performances, has the use temperature of-55-135 ℃, is widely applied to dynamic and static sealing of aerospace and aviation hydraulic systems, and is particularly most applied to missile (rocket) hydraulic servo systems and missile (arrow) heads.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (7)
1. The utility model provides a zero hourglass quick-operation joint of superhigh pressure which characterized in that: the joint comprises a first joint component (1), a second joint component (2), a joint snap ring (3), a clamping steel ball (4), a joint retaining ring (5) and a sealing ring (6), wherein the first joint component (1) comprises a first joint ejector rod (102), the second joint component (2) comprises a second joint valve core (202), the second joint valve core (202) is pushed by a spring through the first joint ejector rod (102) to form internal communication during butt joint, the joint snap ring (3) is sleeved at the connecting part of the first joint component (1) and the second joint component (2), the clamping steel ball (4) is arranged at the inner side of the joint snap ring (3) and is fixed in a gap formed by the joint snap ring (3), the joint retaining ring (5) and the first joint shell (101), and during butt joint, the second joint component (2) pushes the first joint ejector rod (102) and enables the first joint ejector rod (102) and the side wall thereof to slide into the inner side of the first joint shell (101), at the moment, the clamping steel balls (4) slide downwards into grooves in the side walls of the second joint component (2), the joint clamping ring (3) is rotated and drives the joint stop ring (5) arranged on the inner side of the clamping ring to slide towards the direction of the second joint component (2) until the clamping steel balls (4) are stopped to realize locking, the sealing ring (6) is arranged at the butt joint of the first joint component (1) and the second joint component (2) to seal, the joint clamping ring (3) rotates and pushes towards the direction of the first joint component (1) until the clamping steel balls (4) are ejected after the joint stop ring (5) is displaced, and the first joint component (1) and the second joint component (2) are separated under the action of a spring; wherein the first joint component (1) comprises a first joint shell (101), a first joint ejector rod (102), a first joint valve seat (103), a sealing leather cup (104), a first joint sleeve (105) and a first return spring (106), the first joint ejector rod (102), the first joint valve seat (103), the sealing leather cup (104), the first joint sleeve (105) and the first return spring (106) are all arranged in the first joint shell (101), the first joint ejector rod (102) is arranged on the inner side of the first joint valve seat (103), the front end of the first joint ejector rod (102) is arranged at the front end of the first joint component (1), the first joint ejector rod (102), the first joint valve seat (103) and the second joint component (2) are in butt joint during butt joint, the sealing leather cup (104) is arranged on the first joint valve seat (103) for sealing, the tail end of the first return spring (106) is arranged on the first joint sleeve (105), supporting the first adapter sleeve (105) when docked.
2. The ultra-high pressure zero drip quick connector of claim 1 wherein: the first joint shell (101) is made of stainless steel 1Cr17Ni2, and the tensile strength is 1080 MPa.
3. The ultra-high pressure zero drip quick connector of claim 1 wherein: the sealing leather cup (104) is made of nitrile rubber.
4. The ultra-high pressure zero drip quick connector of claim 1 wherein: the second joint assembly (2) comprises a second joint shell (201), a second joint valve core (202) and a second return spring (203), wherein the second joint valve core (202) and the second return spring (203) are arranged in the second joint shell (201), a first joint mandril (102) pushes the second joint valve core (202) during butt joint, the second return spring (203) is arranged at the tail end of the second joint valve core (202) and supports the second joint valve core (202) during butt joint, a groove is formed in the side wall of the second joint shell (201), and a clamping steel ball (4) slides into the groove in the side wall of the second joint shell (201) through the groove in the side wall of a joint snap ring (3) during butt joint and is clamped and fixed through a joint stop ring (5).
5. The ultra-high pressure zero drip quick connector of claim 4 wherein: the groove in the side wall of the second joint shell (201) is V-shaped, the included angle between the groove bottom and the groove wall is 45 degrees, the included angle between the groove wall and the side wall is 15 degrees, and smooth transition is realized among the included angles.
6. The ultra-high pressure zero drip quick connector according to claim 4 or 5, wherein: the second joint shell (201) is made of stainless steel 1Cr17Ni2, and the tensile strength is 1080 MPa.
7. The ultra-high pressure zero drip quick connector of claim 1 wherein: the first joint component (1) and the second joint component (2) are both one-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193758.1A CN107975644B (en) | 2017-11-24 | 2017-11-24 | Ultrahigh-pressure zero-leakage quick joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193758.1A CN107975644B (en) | 2017-11-24 | 2017-11-24 | Ultrahigh-pressure zero-leakage quick joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107975644A CN107975644A (en) | 2018-05-01 |
| CN107975644B true CN107975644B (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711193758.1A Active CN107975644B (en) | 2017-11-24 | 2017-11-24 | Ultrahigh-pressure zero-leakage quick joint |
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| Country | Link |
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| CN (1) | CN107975644B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140086B (en) * | 2018-09-30 | 2020-08-11 | 中国特种飞行器研究所 | A but autosegregation inflation connects for mooring balloon |
| CN109458508B (en) * | 2018-12-29 | 2023-08-25 | 宁波大雅汽车部件有限公司 | Quick-change connector of sealing ring anti-drop structure with high flow and low pressure drop |
| CN110500463B (en) * | 2019-07-17 | 2021-08-20 | 华为技术有限公司 | Joint, cooling system and computer device |
| CN114877149B (en) * | 2022-03-29 | 2023-07-21 | 哈尔滨工程大学 | Deep sea leakless quick-draining underwater hydraulic joint |
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| CN1380509A (en) * | 2001-04-12 | 2002-11-20 | Smc株式会社 | Pipe joint |
| CN2593017Y (en) * | 2002-12-30 | 2003-12-17 | 上海华光工具厂 | Hydraulic two-way rapid joint |
| CN201322156Y (en) * | 2008-10-15 | 2009-10-07 | 云南一通太阳能科技有限公司 | Clamp connector for pipe joint |
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| WO1997019289A1 (en) * | 1995-11-20 | 1997-05-29 | Aeroquip Corporation | Low spill female coupling |
| CN201636477U (en) * | 2010-04-21 | 2010-11-17 | 浙江锦帆船舶配件制造有限公司 | Quick connector |
| DK201000933A (en) * | 2010-10-13 | 2012-04-14 | CleanConnect ApS | Non-drip coupling device for transferring a fluid |
| CN103016878B (en) * | 2011-09-22 | 2015-07-08 | 上海启韬科技发展有限公司 | Non-leakage quick joint |
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| CN202708201U (en) * | 2012-04-28 | 2013-01-30 | 皇甫岳伟 | Reversing valve |
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| CN203963346U (en) * | 2014-05-14 | 2014-11-26 | 江西艾克实业有限公司 | A kind of portable type Quick push/pull joint |
| CN204664716U (en) * | 2015-06-10 | 2015-09-23 | 江西艾克实业有限公司 | A kind of plane type rapid pipe joint |
| CN206280639U (en) * | 2016-12-22 | 2017-06-27 | 何玉兰 | Snap joint |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380509A (en) * | 2001-04-12 | 2002-11-20 | Smc株式会社 | Pipe joint |
| CN2593017Y (en) * | 2002-12-30 | 2003-12-17 | 上海华光工具厂 | Hydraulic two-way rapid joint |
| CN201322156Y (en) * | 2008-10-15 | 2009-10-07 | 云南一通太阳能科技有限公司 | Clamp connector for pipe joint |
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| Publication number | Publication date |
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| CN107975644A (en) | 2018-05-01 |
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