CN102818058B - Large flow pipe-type breaking valve - Google Patents
Large flow pipe-type breaking valve Download PDFInfo
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- CN102818058B CN102818058B CN2012102527424A CN201210252742A CN102818058B CN 102818058 B CN102818058 B CN 102818058B CN 2012102527424 A CN2012102527424 A CN 2012102527424A CN 201210252742 A CN201210252742 A CN 201210252742A CN 102818058 B CN102818058 B CN 102818058B
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Abstract
The invention discloses a large flow pipe-type breaking valve which is characterized by comprising an air inlet valve, a locating sleeve, a plane one-way valve, a breaking shaft, a shield, a lantern ring, a one-way valve core, a stainless steel spring I, a spring seat, a stainless steel spring II, a stainless steel ball I, a supporting ring I, an O-type seal ring I, a one-way valve seal ring, an O-type sea ring II, a main valve seal ring, an O-type seal ring III, a compression spring, a stainless steel ball II, fluid channel technology holes I-IV, a spring hole, a symmetrical hole, a locating hole and a balance cavity. The pressure balance principle is used by the breaking valve, that is, the breaking valve can be automatically and securely separated when the two ends of the breaking valve are applied to the tension for not less than 600N (the breaking force is adjustable) under the circumstance that the pressure fluid or the fluid passes through a hose, and the two ends of the breaking valve can be automatically, effectively and reliably sealed, and no fluid leaks, thereby being capable of playing the role of breaking and protecting on the high pressure hose for below 25MPa, at the same time, the breaking valve is stable and reliable in breaking force, large in flow, low in maintenance cost, convenient to maintain and reusable.
Description
Technical field
The invention belongs to valve technology field, be specifically related to a kind of high volume pipe abruption valve.
Background technique
The application of Pull breaking ualve and popularization have related to a lot of relevant industries, and the Pull breaking ualve product for all trades and professions has a variety of at present.From on function, requiring purpose that Pull breaking ualve finally reaches is to be reduced to minimum for fear of the probability that high-risk accident maybe will occur the generation with preventing security incident, to Pull breaking ualve break performance, sealability, reliability and stability requirement after breaking be higher; Say technically, the technical performance of current whole Pull breaking ualve industry and universal performance are not also very ripe, major embodiment is that the application of Pull breaking ualve is changeable, and majority is to design and produce for single requirement, also have the same Pull breaking ualve to be applied to the applicability of multiple environment or medium lower, main manifestations has certain narrow limitation for the versatility to aspects such as working environment, operating temperature, working medium and special industry, particular surroundingss; From on structure, Pull breaking ualve for industry-by-industry, various particular job environment, various working medium occasions and various performance requirements structurally has certain difference, is mainly reflected in the realization of material, dismounting technical requirements and additional other function that working environment, medium, latus rectum size, each parts adopt.
Due to environmental pollution, gas price is the reason such as risings constantly in the different regions of China, and the taxi that many automobiles, especially frequency of utilization time are grown has all made compressed natural gas into basically as power fuel.But compressed natural gas has higher pressure, in aerating and using process, each pipeline all requires fastening reliable connection.In actual aerating process, there will be automobile not add after gas or aerating complete and also do not close in the situation of aerating valve, automobile slides suddenly or starts, and causes natural gas leaking to such an extent as to break the aerating flexible pipe.Because rock gas has the characteristics such as pressure is high, inflammable, volatilization is fast, natural gas leaking can cause serious consequence.Seldom, after breaking or the moment of breaking, if there is no protective gear, the consequence caused is inconceivable to the situation that pipeline breaks although occur, the aerating scene even can produce the danger of blast after reaching certain concentration of natural gas.
Summary of the invention
The object of the invention is to overcome the situation of above-mentioned technical deficiency, at this, provide a kind of tube-type abruption valve, this tube-type abruption valve utilizes pressure balance principle, namely in the situation that in flexible pipe, there is fluid to pass through, to the Pull breaking ualve two ends apply >=the 600N(pull-off force is adjustable) pulling force the time, the separation of Pull breaking ualve meeting automatic safe disconnects, and forms the two ends automatic-sealed and closes, and leaks without flowing medium.Can on the high pressure hose below 25MPa, play and break protective action, also have simultaneously that pull-off force is reliable and stable, flow is large, maintenance cost is low, easy to maintenance, reusable.And on inlet valve, exposed balance cavity 27 can solve the icing unbalance problem of valve body self that causes under low-temperature condition reliably, the position structure be comprised of plane one-way valve, Stainless Steel Ball and inlet valve can effectively prevent fluid impact, makes the valve body balance and stability.With inlet valve, setting sleeve, plane one-way valve and break the fluid passage that axle forms and can seal fast and effectively after breaking, the advantage such as limited flow and leakage rate are few.Can avoid reliably because after breaking, can not effectively sealing the generation of the serious consequences such as the fluid leakage that may cause or blast.
The present invention is achieved in that a kind of high volume pipe abruption valve of structure, it is characterized in that:
Structure forms and to comprise and be provided with inlet valve, setting sleeve, the plane one-way valve, break axle, guard shield, the collar, nonreturn valve core, the stainless steel spring I, spring seat, the stainless steel spring II, the Stainless Steel Ball I, the support ring I, O RunddichtringO I, the one-way valve seal ring, O RunddichtringO II, the main valve seal ring, O RunddichtringO III, stainless steel spring and Stainless Steel Ball II, fluid passage auxiliary hole I, fluid passage auxiliary hole II, fluid passage auxiliary hole III, fluid passage auxiliary hole IV, spring eye, symmetrical holes, positioning hole and balance cavity,
Described inlet valve, setting sleeve, break axle and plane one-way valve and form a complete hermetic cavity, inside is provided with described fluid passage for fluid process auxiliary hole I, fluid passage auxiliary hole II, fluid passage auxiliary hole III, fluid passage auxiliary hole IV, after breaking, can seal fast and effectively, limited flow and leakage rate are few, the exposed balance cavity that the intermediate portion of described inlet valve arranges, for solving the icing unbalance problem of valve body self that causes under low-temperature condition, by the plane one-way valve, the position structure that Stainless Steel Ball and inlet valve form can effectively prevent fluid impact, make the valve body balance and stability, 4 symmetries are arranged in the body of inlet valve fluid passage auxiliary hole I, in air inlet, be plugged with screw thread one end and be provided with 6 symmetrical spring holes,
Described setting sleeve one end is threaded with inlet valve, the inner chamber of the other end is connected with the cylindrical of breaking axle, and near guard shield one end, be provided with the collar, stainless steel spring II and the Stainless Steel Ball I of cooperation with it arranged, be used to assembling and positioning and the position-limiting action of breaking axle at the endoporus of the collar;
Plane one-way valve inner chamber with break the cylindrical fitted seal of axle, the cylindrical of plane one-way valve and the inner chamber aperture fitted seal of inlet valve, and in the lower end of main valve seal ring, be provided with the Stainless Steel Ball positioning hole of 4 symmetries, the position structure formed with Stainless Steel Ball and inlet valve can effectively prevent fluid impact, make the valve body balance and stability, in the circular groove of plane one-way valve one end, be provided with the one-way valve seal ring, make the one-way sealing seal with the interior resonator end surface of setting sleeve, become sealing to prevent that fluid from flowing out for when Pull breaking ualve, breaking back plane one-way valve generation displacement;
Break an end of axle and the inner chamber aperture of plane one-way valve and carry out fitted seal, break the other end of axle and the inner chamber aperture of setting sleeve and carry out fitted seal, the external arc groove of breaking simultaneously axle coordinates location with the Stainless Steel Ball I of setting sleeve one end;
Guard shield is arranged in the outer round surface groove of breaking the outer six side lower ends of axle, after Pull breaking ualve from breaking, can effectively protect the cylindrical sealing surfaces of breaking axle be used to preventing;
The collar is arranged on the outer round surface that setting sleeve one end has step, be used to blocking the stainless steel spring II, supports the Stainless Steel Ball I;
Nonreturn valve core is arranged on to be broken in the internal cavities that the axial outlet end is threaded, and for Pull breaking ualve, breaks rear counter fluid and promotes nonreturn valve core and prevent the fluid outflow with the sealing of inner chamber end contact;
The stainless steel spring I is arranged in the end face step hole of nonreturn valve core, be used to support nonreturn valve core and auxiliary reset and with break axle and form sealing;
Spring seat is arranged in the tool withdrawal groove of breaking axial outlet end thread bottom, be used to locating the stainless steel spring I;
The stainless steel spring II is arranged in the positioning hole of setting sleeve one end, is placed between Stainless Steel Ball and the collar, reliably locates be used to supporting Stainless Steel Ball, guarantees pull-off force;
The Stainless Steel Ball I is arranged on the front end of Stainless Steel Ball, and with the external arc groove fit applications of breaking axle;
The support ring I is arranged in the seal groove at auxiliary hole III two ends, fluid passage, and the outside of close groove, be used to supporting seal ring, has simultaneously certain seal action;
O RunddichtringO I is arranged in the seal groove at auxiliary hole III two ends, fluid passage, and becomes symmetrical near tunnel-shaped, prevents from leaking outside for fluid-encapsulated medium;
The one-way valve seal ring is arranged in the circular groove of plane one-way valve one end, breaks rear and the end face seal of setting sleeve inner chamber for Pull breaking ualve;
O RunddichtringO II is arranged in the seal groove of plane one-way valve cylindrical, prevents from leaking outside for fluid-encapsulated medium;
The main valve seal ring is arranged in the seal groove of plane one-way valve cylindrical, be used to supporting seal ring and auxiliary seal effect;
O RunddichtringO III is arranged on setting sleeve to be had in the stepped slot of screw thread one end, prevents from leaking outside for fluid-encapsulated medium;
Compress Spring is arranged in the spring eye that air inlet is plugged with screw thread one end, and the auxiliary reset after breaking for Pull breaking ualve strengthens sealing effect;
The Stainless Steel Ball II is arranged on the plane one-way valve near in the symmetrical holes of main valve seal ring one end, and the position structure formed with plane one-way valve and inlet valve can effectively prevent fluid impact, makes the valve body balance and stability.
The invention has the advantages that:
(1) in counter balance pocket physical efficiency exposed on inlet valve, solve reliably the icing unbalance problem of valve body self that causes under low-temperature condition;
(2) position structure be comprised of plane one-way valve, Stainless Steel Ball and inlet valve can effectively prevent fluid impact, makes the valve body balance and stability;
(3) separation of Pull breaking ualve meeting automatic safe disconnects, forming the two ends automatic-sealed closes, with inlet valve, setting sleeve, plane one-way valve and break the fluid passage that axle forms and can seal fast and effectively after breaking, and limited flow, few flowing medium that reduces leaks;
(4) can be for a long time for various working environments and working medium, prerequisite is to guarantee the purity of working medium and without other impurity;
(5) have that pull-off force is reliable and stable, flow is large, maintenance cost is low, easy to maintenance, reusable; (6) can avoid reliably because after breaking, can not effectively sealing fluid leakage or the blast that may cause
Generation etc. serious consequence.
The accompanying drawing explanation
Fig. 1 is the structural profile schematic diagram of tube-type abruption valve of the present invention.
In figure: 1, inlet valve, 2, setting sleeve, 3, the plane one-way valve, 4, break axle, 5, guard shield, 6, the collar, 7, nonreturn valve core, 8, the stainless steel spring I, 9, spring seat, 10, the stainless steel spring II, 11, the Stainless Steel Ball I, 12, support ring I, 13, O RunddichtringO I, 14, the one-way valve seal ring, 15, O RunddichtringO II, 16, the main valve seal ring, 17, O RunddichtringO III, 18, stainless steel spring, 19, the Stainless Steel Ball II, 20, fluid passage auxiliary hole I; 21, fluid passage auxiliary hole II; 22, fluid passage auxiliary hole III; 23, fluid passage auxiliary hole IV; 24, spring eye; 25, symmetrical holes; 26, positioning hole; 27, balance cavity.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to overcome the deficiencies in the prior art, the invention provides a kind of high volume pipe abruption valve, be provided with inlet valve 1, setting sleeve 2, break axle 4 and complete hermetic cavity of plane one-way valve 3 formation, inside is provided with fluid passage auxiliary hole I 20, fluid passage auxiliary hole II 21, fluid passage auxiliary hole III 22, the fluid passage auxiliary hole IV 23 for the fluid process.In the intermediate portion of inlet valve 1, be provided with an exposed balance cavity, be used to solving the icing unbalance problem of valve body self that causes under low-temperature condition.The position structure be comprised of plane one-way valve, Stainless Steel Ball and inlet valve can effectively prevent fluid impact, makes the valve body balance and stability.4 symmetrical fluid passage I 20 are arranged in the body of inlet valve 1, have screw thread one end to be provided with spring eye 24 at inlet valve 1; Setting sleeve 2 one ends are threaded with inlet valve, the inner chamber of the other end is connected with the cylindrical of breaking axle, and near guard shield one end, be provided with the collar, stainless steel spring II 10 and the Stainless Steel Ball I 11 of cooperation with it arranged, be used to assembling and positioning and the position-limiting action of breaking axle at the endoporus of the collar.Plane one-way valve 3 inner chambers with break the cylindrical fitted seal of axle 4, the cylindrical of plane one-way valve 3 and the inner chamber aperture fitted seal of inlet valve 1, and be provided with the Stainless Steel Ball positioning hole in the lower end of main valve seal ring 16, the position structure formed with Stainless Steel Ball and inlet valve can effectively prevent fluid impact, make the valve body balance and stability, in the circular groove of plane one-way valve 3 one ends, be provided with one-way valve seal ring 14, make one-way sealing seal 14 with the interior resonator end surface of setting sleeve 2, become sealing to prevent that fluid from flowing out for when Pull breaking ualve, breaking the 3 generation displacements of back plane one-way valve; Break an end of axle and the inner chamber aperture of plane one-way valve and carry out fitted seal, break the other end of axle and the inner chamber aperture of setting sleeve and carry out fitted seal, the external arc groove of breaking simultaneously axle coordinates location with the Stainless Steel Ball I 11 of setting sleeve one end.Guard shield is arranged in the outer round surface groove of breaking axle 4 outer six side lower ends, after Pull breaking ualve from breaking, can effectively protect the cylindrical sealing surfaces of breaking axle be used to preventing; The collar is arranged on the outer round surface that setting sleeve one end has step, supports Stainless Steel Ball I 11 be used to blocking stainless steel II 10; Nonreturn valve core is arranged on to be broken in the internal cavities that the axial outlet end is threaded, and for Pull breaking ualve, breaks rear counter fluid and promotes nonreturn valve core and prevent the fluid outflow with the sealing of inner chamber end contact; Stainless steel spring I 8 is arranged in the end face step hole of nonreturn valve core, be used to support nonreturn valve core and auxiliary reset and with break axle and form sealing; Spring seat is arranged in the tool withdrawal groove of breaking axial outlet end thread bottom, for the stainless steel spring II 10 of locating Stainless Steel Ball I 11, be arranged in the positioning hole 26 of setting sleeve one end, be placed between Stainless Steel Ball and the collar, reliably locate be used to supporting Stainless Steel Ball, guarantee pull-off force; Stainless Steel Ball I 11 is arranged on the front end of Stainless Steel Ball, and with the external arc groove fit applications of breaking axle; The support ring I is arranged in the seal groove at auxiliary hole III 22 two ends, fluid passage, and the outside of close groove, be used to supporting seal ring, has simultaneously certain seal action; O RunddichtringO I 13 is arranged in the seal groove at auxiliary hole III 22 two ends, fluid passage, and becomes symmetrical near tunnel-shaped, prevents from leaking outside for fluid-encapsulated medium; The one-way valve seal ring is arranged in the circular groove of plane one-way valve one end, breaks rear and the end face seal of setting sleeve inner chamber for Pull breaking ualve; O RunddichtringO II 15 is arranged in the seal groove of plane one-way valve cylindrical, prevents from leaking outside for fluid-encapsulated medium; The main valve seal ring is arranged in the seal groove of plane one-way valve cylindrical, be used to supporting seal ring and auxiliary seal effect; O RunddichtringO III 17 is arranged on setting sleeve to be had in the stepped slot of screw thread one end, prevents from leaking outside for fluid-encapsulated medium; Stainless steel spring 18 is arranged in the spring eye 24 that air inlet is plugged with screw thread one end, and the auxiliary reset after breaking for Pull breaking ualve strengthens sealing effect; Stainless Steel Ball II 19 is arranged on plane one-way valve 3 near in the hole 25 of main valve seal ring 16 1 ends, and the position structure formed with plane one-way valve and inlet valve can effectively prevent fluid impact, makes the valve body balance and stability.
Working principle
Normal working: when fluid is introduced fluid passage 20 by the inlet valve tapped hole, flowing out inlet valve introduces and coordinates passage 21 between setting sleeve and balance one-way valve, introduce again fluid passage auxiliary hole III 22, introducing is broken the 23 promotion nonreturn valve core displacements of axial flow body passage and is made spring-compressed again, now nonreturn valve core with break axocoel body sealing surface and separate and form fluid passage, the passage that fluid is drawn in the middle of spring seat by the auxiliary hole of nonreturn valve core conical surface enters the structure that the high-voltage explosion-proof flexible pipe forms a population equilibrium.
Break working state: when the moment that stretch break method is broken, break the parts such as axle, guard shield, seal ring, support ring, nonreturn valve core and simultaneously with setting sleeve, separate disconnection fully under with the fast moving of high pressure hose at automobile, the plane one-way valve promotes to move forward under the effect of hydrodynamic pressure and Returnning spring simultaneously, make the end face of one-way valve seal ring form quick the contact with the interior resonator end surface protrusion arc surface of setting sleeve, form sealing state, block the flowing medium of introducing from inlet valve.In the inside cavity of breaking axle, be subject to simultaneously the promotion of backpressure fluid and Returnning spring due to nonreturn valve core, also oppositely the mobile conical surface of nonreturn valve core and the inner chamber body end face of breaking axle of making forms sealing state, blocks reverse leakage.
Claims (1)
1. high volume pipe abruption valve is characterized in that:
Structure forms and to comprise and be provided with inlet valve (1), setting sleeve (2), plane one-way valve (3), break axle (4), guard shield (5), the collar (6), nonreturn valve core (7), stainless steel spring I (8), spring seat (9), stainless steel spring II (10), Stainless Steel Ball I (11), support ring I (12), O RunddichtringO I (13), one-way valve seal ring (14), O RunddichtringO II (15), main valve seal ring (16), O RunddichtringO III (17), stainless steel spring (18) and Stainless Steel Ball II (19), fluid passage auxiliary hole I (20), fluid passage auxiliary hole II (21), fluid passage auxiliary hole III (22), fluid passage auxiliary hole IV (23), spring eye (24), symmetrical holes (25), positioning hole (26) and balance cavity (27),
Described inlet valve (1), setting sleeve (2), break axle (4) and plane one-way valve (3) and form a complete hermetic cavity, inside is provided with the described auxiliary hole I of fluid passage for the fluid process (20), fluid passage auxiliary hole II (21), fluid passage auxiliary hole III (22), fluid passage auxiliary hole IV (23), after breaking, can seal fast and effectively, limited flow and leakage rate are few, the exposed balance cavity (27) that the intermediate portion of described inlet valve (1) arranges, for solving the icing unbalance problem of valve body self that causes under low-temperature condition, by the plane one-way valve, the position structure that Stainless Steel Ball and inlet valve form can effectively prevent fluid impact, make the valve body balance and stability, 4 symmetries are arranged in the body of inlet valve (1) fluid passage auxiliary hole I (20), at inlet valve (1), there is screw thread one end to be provided with 6 symmetrical spring holes (24),
Described setting sleeve (2) one ends are threaded with inlet valve (1), the inner chamber of the other end is connected with the cylindrical of breaking axle (4), and be provided with the collar (6) near guard shield (5) one ends, endoporus at the collar (6) has stainless steel spring II (10) and the Stainless Steel Ball I (11) coordinated with it, be used to breaking assembling and positioning and the position-limiting action of axle (4);
Plane one-way valve (3) inner chamber and the cylindrical fitted seal of breaking axle (4), the inner chamber aperture fitted seal of the cylindrical of plane one-way valve (3) and inlet valve (1), and in the lower end of main valve seal ring (16), be provided with the Stainless Steel Ball positioning hole of 4 symmetries, the position structure formed with Stainless Steel Ball and inlet valve can effectively prevent fluid impact, make the valve body balance and stability, in the circular groove of plane one-way valve (3) one ends, be provided with one-way valve seal ring (14), for when Pull breaking ualve, breaking back plane one-way valve (3) generation displacement, make one-way sealing seal (14) with the interior resonator end surface of setting sleeve (2), become sealing to prevent that fluid from flowing out,
Break an end of axle (4) and the inner chamber aperture of plane one-way valve (3) and carry out fitted seal, break the other end of axle (4) and the inner chamber aperture of setting sleeve (2) and carry out fitted seal, the external arc groove of breaking simultaneously axle (4) coordinates location with the Stainless Steel Ball I (11) of setting sleeve (2) one ends;
Guard shield (5) is arranged in the outer round surface groove of breaking the outer six side lower ends of axle (4), after Pull breaking ualve from breaking, can effectively protect the cylindrical sealing surfaces of breaking axle (4) be used to preventing;
The collar (6) is arranged on the outer round surface that setting sleeve (2) one ends have step, be used to blocking stainless steel spring II (10), supports Stainless Steel Ball I (11);
Nonreturn valve core (7) is arranged on to be broken in the internal cavities that axle (4) outlet end is threaded, and for Pull breaking ualve, breaks rear counter fluid and promotes nonreturn valve core (7) and prevent that with the sealing of inner chamber end contact fluid from flowing out;
Stainless steel spring I (8) is arranged in the end face step hole of nonreturn valve core, be used to support nonreturn valve core (7) and auxiliary reset and with break axle (4) and form sealing;
Spring seat (9) is arranged in the tool withdrawal groove of breaking axle (4) outlet end thread bottom, be used to locating stainless steel spring I (8);
Stainless steel spring II (10) is arranged in the positioning hole (26) of setting sleeve (2) one ends, is placed between Stainless Steel Ball and the collar, reliably locates be used to supporting Stainless Steel Ball, guarantees pull-off force;
Stainless Steel Ball I (11) is arranged on the front end of Stainless Steel Ball, and with the external arc groove fit applications of breaking axle (4);
Support ring I (12) is arranged in the seal groove at fluid passage auxiliary hole III (22) two ends, and the outside of close groove, be used to supporting seal ring, has simultaneously certain seal action;
O RunddichtringO I (13) is arranged in the seal groove at fluid passage auxiliary hole III (22) two ends, and becomes symmetrical near tunnel-shaped, prevents from leaking outside for fluid-encapsulated medium;
One-way valve seal ring (14) is arranged in the circular groove of plane one-way valve (3) one ends, breaks rear and setting sleeve (2) inner chamber end face seal for Pull breaking ualve;
O RunddichtringO II (15) is arranged in the seal groove of plane one-way valve cylindrical, prevents from leaking outside for fluid-encapsulated medium;
Main valve seal ring (16) is arranged in the seal groove of plane one-way valve cylindrical, be used to supporting seal ring and auxiliary seal effect;
O RunddichtringO III (17) is arranged on setting sleeve to be had in the stepped slot of screw thread one end, prevents from leaking outside for fluid-encapsulated medium;
Compress Spring (18) is arranged in the spring eye (24) that air inlet is plugged with screw thread one end, and the auxiliary reset after breaking for Pull breaking ualve strengthens sealing effect;
Stainless Steel Ball II (19) is arranged on plane one-way valve (3) near in the symmetrical holes (25) of main valve seal ring (16) one ends, and the position structure formed with plane one-way valve and inlet valve can effectively prevent fluid impact, makes the valve body balance and stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102527424A CN102818058B (en) | 2012-07-20 | 2012-07-20 | Large flow pipe-type breaking valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102527424A CN102818058B (en) | 2012-07-20 | 2012-07-20 | Large flow pipe-type breaking valve |
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| Publication Number | Publication Date |
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| CN102818058A CN102818058A (en) | 2012-12-12 |
| CN102818058B true CN102818058B (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102527424A Active CN102818058B (en) | 2012-07-20 | 2012-07-20 | Large flow pipe-type breaking valve |
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| CN104044465B (en) * | 2014-06-30 | 2016-08-24 | 安徽江淮汽车股份有限公司 | A kind of automobile storage battery assembly and automobile |
| CN105626917A (en) * | 2014-10-29 | 2016-06-01 | 哈尔滨聚吉轩科技开发有限公司 | High-pressure disconnector capable of realizing rapid pressure relief |
| CA3146922C (en) | 2021-02-03 | 2023-09-26 | Spectrum Associates, Inc. | Self-sealing breakaway valve |
| CN113251188B (en) * | 2021-05-20 | 2023-05-02 | 北京航天试验技术研究所 | Break-off valve |
| CN113581146B (en) * | 2021-07-27 | 2022-08-23 | 西安航空制动科技有限公司 | Automatic stop valve capable of controlling oil leakage |
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| CN201306494Y (en) * | 2008-12-08 | 2009-09-09 | 北京长空机械有限责任公司 | An abruption valve for gas transmission pipelines |
| CN102182852A (en) * | 2011-05-09 | 2011-09-14 | 成都安迪生测量有限公司 | Snapping valve |
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| US7575023B2 (en) * | 2006-08-11 | 2009-08-18 | Husky Corporation | Disposable breakaway nozzle connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3719194A (en) * | 1971-09-23 | 1973-03-06 | Wiggens E Inc | Breakaway coupling |
| US3794057A (en) * | 1972-06-26 | 1974-02-26 | Textron Inc | Safety breakaway fluid coupling |
| US4643216A (en) * | 1986-02-06 | 1987-02-17 | Aeroquip Corporation | Frangible ball valve connector |
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| CN102182852A (en) * | 2011-05-09 | 2011-09-14 | 成都安迪生测量有限公司 | Snapping valve |
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| Publication number | Publication date |
|---|---|
| CN102818058A (en) | 2012-12-12 |
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