CN103343827B - Manual automatic tire shut-off valve and operation method thereof - Google Patents
Manual automatic tire shut-off valve and operation method thereof Download PDFInfo
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- CN103343827B CN103343827B CN201310301451.4A CN201310301451A CN103343827B CN 103343827 B CN103343827 B CN 103343827B CN 201310301451 A CN201310301451 A CN 201310301451A CN 103343827 B CN103343827 B CN 103343827B
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Abstract
The invention relates to a device which can shut off a single tire automatically or manually when a vehicle tire is inflated and deflated, in particular to a multifunctional valve which can automatically and rapidly shut off a gas circuit when the intake pressure is lower tan certain pressure and is widely applied to cross-country vehicles. The manual automatic tire shut-off valve enables a gas circuit channel to be shut off, can automatically shut off a gas channel between the tire and a rotating sealing air chamber through a spring arranged on the tire valve when the intake pressure is lower than a designed pressure value, can achieve pressure maintaining of the tire, and can achieve inflation, deflation, pressure measuring and pressure maintaining of the tire when the vehicle runs at a low speed.
Description
Technical field
The device turned off single tire implementation automatic or manual when the present invention relates to a kind of automobile tire inflation/deflation, especially when suction pressure can turn off gas circuit rapidly automatically lower than during certain pressure, applies more extensive in offroad vehicle.
Background technique
At present, independent locking valve and tire valve is had in Germany, the U.S. etc.Locking valve is used for manually turning off the gas channels between tire and rotary seal air chamber; Tire valve is then when suction pressure automatically shuts down the gas channels between tire and rotary seal air chamber lower than during design pressure value by the spring on tire valve.Two valves are connected by pipeline, just easily occur that pipeline leak gas, there is potential safety hazard, but also there is the cost high unfavorable factor such as inconvenience after sale.
Patent documentation CN2328543Y discloses a kind of rotary moveable head semi-automatic automobile tire inflator nozzle, it is connected and composed by inflation/deflation switch, curved conductor, front and rear housings, connecting bolt, piston, O-ring seal, thimble spring, spring seat, one-way valve thimble, this device can easily to all kinds of automobile tyre inflation, save time, laborsaving, and can semi-automatic clamping, get loose taking-up, but cannot realize automatic or manual closing control; Document CN2806207Y then discloses Multifunctional tyre pressure-monitoring automatic alarming device, comprise air injection opening and tubulose connecting sleeve, gas injection conduit and valve is had between air injection opening and tubulose connecting sleeve, air-pressure balancing device is provided with side by side with gas injection conduit, air-pressure balancing device is provided with alarm, enough discover tire in time cause the situation of air pressure deficiency because leaking gas and report to the police, and automatic inflating can be carried out under emergency conditions, but structure is comparatively complicated.Domestic also have be similar to external independent locking valve and tire valve, but owing to being two valves, pipeline is longer, and structure is also relatively complicated, and thus also inevitably rate of fault is higher.
Summary of the invention
Improve stability to reduce costs and optimize structure, based on the problems referred to above, the invention provides a kind of multifunction valve, this valve manually can not only turn off gas channels, and can also work as suction pressure and automatically shut down the gas channels between tire and rotary seal air chamber lower than during design pressure value by the spring on tire valve.Structure Rational structure air chamber, realizes the pressurize to single tire, also can realize when low speed driving the inflation/deflation of tire, pressure measurement and pressurize.
The technical solution adopted in the present invention is: a kind of manual automatic tire shut-off valve for automobile inflation/deflation, this manual automatic tire shut-off valve comprises main valve and ball valve two-part, main valve realizes automatically closing and automatic opening function, ball valve realizes manual unlocking and closing function, described main valve comprises: connecting rod, one O type rubber seal, sealing nut, 2nd O type rubber seal, 3rd O type rubber seal, main valve body, 4th O type rubber seal, dynamic piston, spring, main valve lid, circlip for hole, fixed base, described connecting rod is connected with rotary seal air chamber by screw thread, it is air tight that one O type rubber seal makes it sealing, sealing nut is fixed on main valve body by screw thread, 2nd O type rubber seal is contained in sealing nut groove, and connecting rod stretches in sealing nut chamber, 3rd O type rubber seal is contained in connecting rod groove, 4th O type rubber seal is contained in be formed between dynamic piston and main valve body and seals, spring is contained in dynamic piston and main valve cover chamber, and main valve lid is fixed in main valve body by circlip for hole, and fixed base is fixed on main valve body by hexagon socket head cap screw, described ball valve comprises the 5th O type rubber seal, ball valve body, lid, positioning ring, 6th O type rubber seal, solid of rotation, valve inside cap, valve inside, ball valve connecting head, be tightly connected bar, interior hexagonal retainer ring, seal ring, ball valve core, described lid is fixed on positioning ring by bayonet socket, positioning ring becomes to be integrated by round key drive fit with solid of rotation, 6th O type rubber seal is contained on solid of rotation and seals with ball valve body, ball valve connecting head has connected solid of rotation and ball valve core by upper and lower keyway also can synchronous rotary, valve inside and valve inside cap are fixed on ball valve body respectively by inside and outside two screw threads, seal ring is contained in the counterbore of ball valve body and interior hexagonal retainer ring for fixing ball valve core, metal knitted connecting hose is used for connecting the threaded coupling of threaded coupling and tyre valve core on ball valve body.
The technique effect adopting technological scheme of the present invention to bring is:
1, main valve realizes automatically closing and automatic opening function, and ball valve realizes manual unlocking and closing function, and two valves combine and cut middle long connecting pipeline, and structure is comparatively simple, and cost is low, air tight;
2, be manually ball valve type structure, reliable performance, easy to use;
3, dual pressurize (manually with automatic) function is had, i.e. clockwise (along the OFF direction of arrow) rotary cover 90 °, on gas circuit on manual shutoff main valve body between cylindrical B cavity and ball valve body inner cylinder shape C cavity and connecting rod cylindrical A cavity air-flow by fast-discharge valve arrange be low to moderate certain air pressure time, under the elastic force effect of spring, dynamic piston moves, gas circuit on automatic cut-out connecting rod on cylindrical A cavity and main valve body between cylindrical B cavity, all realizes pressurize to tire;
4, the valve cock taken by valve redesigns one on valve, still can measuring wheel tire pressure or manually to tire inflation/deflation easily.
Accompanying drawing explanation
To describe as preferred but nonrestrictive embodiment of the present invention now, these and other features of the present invention, aspect and advantage will become apparent when reading following detailed description in detail with reference to accompanying drawing, wherein:
Fig. 1 is manual automatic tire shut-off valve plan view
Reference character: 1. connecting rod, 2. an O type rubber seal, 3. sealing nut, 4. the 2nd O type rubber seal, 5. the 3rd O type rubber seal, 6. main valve body, 7. the 4th O type rubber seal, 8. dynamic piston, 9. spring, 10. main valve lid, 11. the 5th O type rubber seal, 12. circlip for holes, 13. ball valve bodies, 14. lids, 15. positioning rings, 16. the 6th O type rubber seal 17. solid of rotation, 18. valve inside caps, 19. valve insides, 20. ball valve connecting heads, 21. fixed bases, 22. are tightly connected bar, hexagonal retainer ring in 23., 24. seal rings, 25. ball valve cores.
Embodiment
The following description is only exemplary and be not to limit the disclosure, application or purposes in essence.Should be understood that, in whole accompanying drawing, corresponding reference character represents identical or corresponding parts and feature.
As shown in Figure 1, manual automatic tire shut-off valve mainly comprises main valve and ball valve two-part, and wherein said main valve mainly comprises: connecting rod 1, an O type rubber seal 2, sealing nut 3, the 2nd O type rubber seal the 4, the 3rd O type rubber seal 5, main valve body 6, the 4th O type rubber seal 7, dynamic piston 8, spring 9, main valve lid 10, circlip for hole 12, fixed base 21.Annexation between the component of described primary valve part: connecting rod 1 is connected with rotary seal air chamber by screw thread, it is air tight that an O type rubber seal 2 makes it sealing; Sealing nut 3 is fixed on main valve body 6 by screw thread, 2nd O type rubber seal 4 is contained in sealing nut 3 groove, and connecting rod 1 stretches in sealing nut 3 chamber, 3rd O type rubber seal 5 is contained in connecting rod 1 groove, 4th O type rubber seal 7 is contained in be formed between dynamic piston 8 and main valve body 6 and seals, spring 9 is contained between dynamic piston 8 and main valve lid 10, and main valve lid 10 is fixed in main valve body 6 by circlip for hole 12.Fixed base 21 is fixed on main valve body 6 by hexagon socket head cap screw (not shown in FIG.).
Described ball valve comprises the 5th O type rubber seal 11, ball valve body 13, lid 14, positioning ring 15, 6th O type rubber seal 16, solid of rotation 17, valve inside cap 18, valve inside 19, ball valve connecting head 20, be tightly connected bar 22, interior hexagonal retainer ring 23, seal ring 24, ball valve core 25, annexation between the component of described ball valve part is: lid 14 is fixed on positioning ring 15 by bayonet socket, positioning ring 15 becomes to be integrated by round key drive fit with solid of rotation 17, 6th O type rubber seal 16 is contained on solid of rotation 17 and seals with ball valve body 13, ball valve connecting head 20 has connected solid of rotation 17 and ball valve core 25 by upper and lower keyway also can synchronous rotary, valve inside 19 and valve inside cap 18 are fixed on ball valve body 13 respectively by inside and outside two screw threads, seal ring 24 is contained in the counterbore of ball valve body 13 and interior hexagonal retainer ring 23 for fixing ball valve core 25, described metal knitted connecting hose (not shown in FIG.) is the metallic hose that a kind of special gas circuit connects, the activity female adapter of one end is connected with the screw thread of the upper threaded coupling of this valve upper ball valve valve body (13), middle is that rubber or metallic hose are fixed in the union at two ends with the wire gaze wrapping in outside by net retainer ring, band valve inside thimble in the activity female adapter of the other end, be used for connecting the threaded coupling of tyre valve core and unseat the valve core.
The concrete model type of described component can be following selection:
Described ball valve is fixed on main valve by two hexagon socket head cap screws (not shown in FIG.), seals by the bar 22 that is tightly connected in joint with dress the 5th O type rubber seal 11 thereon.Described connecting rod 1 is an ironcasting, and its function is connected conducting air inlet with rotary seal air chamber; A described O type rubber seal 2 is standard piece (GB/T3452.3-2005), low temperature resistant, and its function is sealing; Described sealing nut 3 is aluminum components, and its function is for connecting rod 1 provides location; Described 2nd O type rubber seal 4 is standard piece (GB/T3452.3-2005), low temperature resistant, and its function is sealing; Described 3rd O type rubber seal 5 is standard piece (GB/T3452.3-2005), low temperature resistant, and its function is sealing;
Described main valve body 6 is aluminum components, and its function is for other parts provide installing space, and forms a closed air chamber; Described 4th O type rubber seal 7 is standard piece (GB/T3452.3-2005), low temperature resistant, and its function is sealing; Described dynamic piston 8 is aluminum components, and its function turns on and off the gas circuit on connecting rod 1 on cylindrical A cavity and main valve body 6 between cylindrical B cavity place; Described spring 9 is Common parts, a kind of dextrorotation cylindrical helical spring; Described main valve lid 10 is aluminum components, and its function is for spring 9 provides support; Described 5th O type rubber seal 11 is standard piece (GB/T3452.3-2005), low temperature resistant, and its function is sealing; Described circlip for hole 12 is standard piece (GB893.1-86), and its function is that main valve lid 10 is fixed on main valve body 6; Described ball valve body 13 is copper castings, and its function is for other parts provide installing space; Described lid 14 is copper castings, and its function turns on and off the gas circuit on ball valve body 13 inner cylinder shape C cavity and main valve body 6 between cylindrical B cavity for convenience; Described positioning ring 15 is copper piece, and its function is locating cover 14; Described 6th O type rubber seal 16 is standard piece (GB/T3452.3-2005), low temperature resistant, and its function is sealing; Described solid of rotation 17 is copper piece, and its function is carry-over moment;
Described valve inside cap 18 is standard piece (GB/T12893-2005); Described valve inside 19 is standard piece (GB/T12893-2005); Described ball valve connecting head 20 is copper piece, and its function is carry-over moment; Described fixed base 21 is stamping part, and whole valve is fixed on automotive hub by it; The described bar 22 that is tightly connected is copper piece, and its function is communicated with main valve and ball valve and provides fixed position for the 5th O type rubber seal 11; Described interior hexagonal retainer ring 23 is with inner hexagonal hole and externally threaded copper piece, and its function is locked seal ring 24 and ball valve core 25; Described seal ring 24 is polytetrafluoroethylene parts, and its function is located for ball valve core 25 provides and seal; Described ball valve core 25 is steel ball bodies of a band through hole, and its function turns on and off the gas circuit on ball valve body 13 inner cylinder shape C cavity and main valve body 6 between cylindrical B cavity.Described metal knitted connecting hose (not shown in FIG.) is used to the threaded coupling connecting threaded coupling and tyre valve core on ball valve body 13, and with the mouth that is threaded of tyre valve core built with valve inside thimble.
The technical solution adopted for the present invention to solve the technical problems and working principle are: to be communicated with on main valve body 6 between cylindrical B cavity and ball valve body 13 inner cylinder shape C cavity when gas circuit in this valve, when the air-flow at connecting rod 1 inner cylinder shape A cavity place is low to moderate certain air pressure by fast-discharge valve row, dynamic piston 8 is under the effect of Compress Spring 9, gas circuit on automatic cut-out connecting rod 1 inner cylinder shape A cavity and main valve body 6 between cylindrical B cavity, now valve is in the state of automatically shutting down is off working state, carries out pressurize to tire.After the pressure of connecting rod 1 inner cylinder shape A cavity air-flow reaches certain value, the power that air-flow produces enough overcomes the compressive force of spring 9 and dynamic piston self gravitation, dynamic piston 8 moves upward, be communicated with the gas circuit between cylindrical B cavity on connecting rod 1 inner cylinder shape A cavity and main valve body 6, now valve is in running order, can inflate, exits and pressure measurement to tire.
As clockwise (along the OFF direction of arrow) rotary cover 1490 °, drive positioning ring 15, the 6th O type rubber seal 16, solid of rotation 17, ball valve connecting head 20, ball valve core 25 successively simultaneously, being now the gas circuit manually turned off on main valve body 6 between cylindrical B cavity and ball valve body 13 inner cylinder shape C cavity, is also that off working state realizes realizing pressurize to tire.Otherwise (along the ON direction of arrow) rotatable cover 14 counterclockwise, be then communicated with the gas circuit on main valve body 6 between cylindrical B cavity and ball valve body 13 inner cylinder shape C cavity, be also working state, can inflate tire, exit and pressure measurement.
Normally always be communicated with the gas circuit between cylindrical B cavity and ball valve body 13 inner cylinder shape C cavity on main valve body 6 in situation.
Concrete operation method as above-mentioned manual automatic tire shut-off valve is:
1) this valve of manual-lock: insert the intermediate groove in lid with flat mouth bottle opener, clockwise along OFF direction of arrow rotary cover 1490 °, drive positioning ring 15, the 6th O type rubber seal 16, solid of rotation 17, ball valve connecting head 20, ball valve core 25 successively simultaneously, gas circuit on manual shutoff main valve body 6 between cylindrical B cavity and ball valve body 13 inner cylinder shape C cavity is also that off working state realizes realizing pressurize to tire.
2) this valve of manual unlocking: insert the intermediate groove in lid with flat mouth bottle opener, counterclockwise along ON direction of arrow rotatable cover 14, drive the gas circuit between cylindrical B cavity and ball valve body 13 inner cylinder shape C cavity on positioning ring 15, the 6th O type rubber seal 16, solid of rotation 17, ball valve connecting head 20,25, ball valve core connection main valve body 6 successively simultaneously.
3) automatically this valve is closed, when this valve of manual unlocking, namely to be communicated with on main valve body 6 between cylindrical B cavity and ball valve body 13 inner cylinder shape C cavity when gas circuit, when the air-flow at connecting rod 1 inner cylinder shape A cavity place is low to moderate certain air pressure by fast-discharge valve row, dynamic piston 8 is under the effect of Compress Spring 9, gas circuit on automatic cut-out connecting rod 1 inner cylinder shape A cavity and main valve body 6 between cylindrical B cavity, now valve is in the state of automatically shutting down is off working state, carries out pressurize to tire.
4) automatically this valve is opened: after the pressure of connecting rod 1 inner cylinder shape A cavity air-flow is raised to certain value, the power that air-flow produces enough overcomes the compressive force of spring 9 and dynamic piston self gravitation, dynamic piston 8 moves upward, be communicated with the gas circuit between cylindrical B cavity on connecting rod 1 inner cylinder shape A cavity and main valve body 6, now valve is opened.
5) manually to tire inflation/deflation: can be filled the tire that valve connects, exit by inflation/deflation special tool at the joint of band valve inside screw thread place connecting band valve inside thimble.
6) measuring wheel tire pressure, connecting pressure measuring tool table at band valve inside screw thread place just can measuring wheel tire pressure.
Although describe in detail invention has been in conjunction with the embodiments; but those skilled in the art are with being to be understood that; the present invention is not limited only to specific embodiment; on the contrary; do not exceeding the various corrections of the application's spirit and essence, distortion and replacement all drop among the protection domain of the application.
Claims (3)
1., for a manual automatic tire shut-off valve for automobile inflation/deflation, this manual automatic tire shut-off valve comprises main valve and ball valve two-part, it is characterized in that:
Described main valve comprises connecting rod (1), an O type rubber seal (2), sealing nut (3), the 2nd O type rubber seal (4), the 3rd O type rubber seal (5), main valve body (6), the 4th O type rubber seal (7), dynamic piston (8), spring (9), main valve lid (10), circlip for hole (12), fixed base (21), described connecting rod (1) is connected with rotary seal air chamber by screw thread, and it is air tight that an O type rubber seal (2) makes it sealing, sealing nut (3) is fixed on main valve body (6) by screw thread, 2nd O type rubber seal (4) is contained in sealing nut (3) groove, and connecting rod (1) stretches in sealing nut (3) chamber, 3rd O type rubber seal (5) is contained in connecting rod (1) groove, 4th O type rubber seal (7) is contained in be formed between dynamic piston (8) and main valve body (6) and seals, spring (9) is contained between dynamic piston (8) and main valve lid (10), main valve lid (10) is fixed in main valve body (6) by circlip for hole (12), fixed base (21) is fixed on main valve body (6) by hexagon socket head cap screw,
Described ball valve comprises the 5th O type rubber seal (11), ball valve body (13), lid (14), positioning ring (15), 6th O type rubber seal (16), solid of rotation (17), valve inside cap (18), valve inside (19), ball valve connecting head (20), be tightly connected bar (22), interior hexagonal retainer ring (23), seal ring (24), ball valve core (25), described lid (14) is fixed on positioning ring (15) by bayonet socket, positioning ring (15) becomes to be integrated by round key drive fit with solid of rotation (17), 6th O type rubber seal (16) is contained on solid of rotation (17) and ball valve body (13) seals, ball valve connecting head (20) has connected solid of rotation (17) and ball valve core (25) by upper and lower keyway and can synchronous rotary, valve inside (19) and valve inside cap (18) are fixed on ball valve body (13) respectively by inside and outside two screw threads, seal ring (24) is contained in the counterbore of ball valve body (13) and interior hexagonal retainer ring (23) for fixing ball valve core (25), metal knitted connecting hose is used for connecting the threaded coupling that ball valve body (13) goes up threaded coupling and tyre valve core.
2. manual automatic tire shut-off valve according to claim 1, is characterized in that: described manual automatic tire shut-off valve has manually and automatic dual pressure holding function, comprising:
1), dextrorotation hub cap (14) 90 °, manually turn off the upper gas circuit between cylindrical B cavity and ball valve body (13) inner cylinder shape C cavity of main valve body (6), realizing pressurize to tire, is now manual function;
2) when, the air-flow of the upper cylindrical A cavity of connecting rod (1) is low to moderate certain air pressure by fast-discharge valve row, under the elastic force effect of spring (9), dynamic piston (8) is mobile, gas circuit between the upper cylindrical A cavity of automatic cut-out connecting rod (1) and the upper cylindrical B cavity of main valve body (6), also can realize pressurize to tire, now be automatic pressure-maintaining function.
3. operate a method for manual automatic tire shut-off valve as claimed in claim 1 or 2, comprise the following steps:
1) hand stop valve: insert the intermediate groove in lid with flat mouth bottle opener, dextrorotation hub cap (14) 90 °, drive positioning ring (15), the 6th O type rubber seal (16), solid of rotation (17), ball valve connecting head (20), ball valve core (25) successively simultaneously, the upper gas circuit between cylindrical B cavity and ball valve body (13) inner cylinder shape C cavity of manual shutoff main valve body (6) is also that off working state realizes realizing pressurize to tire;
2) manual unlocking valve: insert the intermediate groove in lid with flat mouth bottle opener, along ON direction of arrow rotatable cover (14), drive positioning ring (15), the 6th O type rubber seal (16), solid of rotation (17), ball valve connecting head (20), ball valve core (25) to be then communicated with the upper gas circuit between cylindrical B cavity and ball valve body (13) inner cylinder shape C cavity of main valve body (6) successively simultaneously;
3) self acting stop valve, when this valve of manual unlocking, namely be communicated with main valve body (6) upper between cylindrical B cavity and ball valve body (13) inner cylinder shape C cavity when gas circuit, when the air-flow at connecting rod (1) inner cylinder shape A cavity place is low to moderate certain air pressure by fast-discharge valve row, dynamic piston (8) is under the effect of Compress Spring (9), gas circuit between automatic cut-out connecting rod (1) inner cylinder shape A cavity and the upper cylindrical B cavity of main valve body (6), now valve is in the state of automatically shutting down is off working state, pressurize is carried out to tire,
4) automatically valve is opened: after the pressure of connecting rod (1) inner cylinder shape A cavity air-flow is raised to certain value, the power that air-flow produces enough overcomes the compressive force of spring (9) and dynamic piston self gravitation, dynamic piston (8) moves upward, be communicated with the gas circuit between connecting rod (1) inner cylinder shape A cavity and the upper cylindrical B cavity of main valve body (6), now valve is opened;
5) manually to tire inflation/deflation: can be filled the tire that valve connects, exit by inflation/deflation special tool at the joint of band valve inside screw thread place connecting band valve inside thimble;
6) measuring wheel tire pressure, connecting pressure measuring tool table at band valve inside screw thread place just can measuring wheel tire pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301451.4A CN103343827B (en) | 2013-07-18 | 2013-07-18 | Manual automatic tire shut-off valve and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301451.4A CN103343827B (en) | 2013-07-18 | 2013-07-18 | Manual automatic tire shut-off valve and operation method thereof |
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| Publication Number | Publication Date |
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| CN103343827A CN103343827A (en) | 2013-10-09 |
| CN103343827B true CN103343827B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310301451.4A Active CN103343827B (en) | 2013-07-18 | 2013-07-18 | Manual automatic tire shut-off valve and operation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3318426A1 (en) * | 2016-11-04 | 2018-05-09 | DANA ITALIA S.r.l. | Pneumatically controllable valve assembly, tire inflation system, and methods of operating the valve assembly and the tire inflation system |
| CN109505752B (en) * | 2018-12-27 | 2023-12-12 | 昆山十全塑胶五金产品有限公司 | Inflator capable of presetting pressure value |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162061A (en) * | 2007-10-30 | 2008-04-16 | 武汉元丰汽车技术发展有限公司 | Automobile tyre central inflation-deflation over-flow shuttle valve |
| CN101608701A (en) * | 2008-06-20 | 2009-12-23 | 深圳市中科力函热声技术工程研究中心有限公司 | Rotary valve |
| CN201651455U (en) * | 2010-04-30 | 2010-11-24 | 锦州红海桥橡胶有限公司 | Tire explosion-proof valve cock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100163763A1 (en) * | 2008-12-31 | 2010-07-01 | Bradford Ronald F | Pilot operated vacuum packable inflation system |
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2013
- 2013-07-18 CN CN201310301451.4A patent/CN103343827B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162061A (en) * | 2007-10-30 | 2008-04-16 | 武汉元丰汽车技术发展有限公司 | Automobile tyre central inflation-deflation over-flow shuttle valve |
| CN101608701A (en) * | 2008-06-20 | 2009-12-23 | 深圳市中科力函热声技术工程研究中心有限公司 | Rotary valve |
| CN201651455U (en) * | 2010-04-30 | 2010-11-24 | 锦州红海桥橡胶有限公司 | Tire explosion-proof valve cock |
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Effective date of registration: 20210512 Address after: 442000 No.6, Shiyang Road, Maojian District, Shiyan City, Hubei Province Patentee after: Shiyan Zhen Ke Industrial Technology Co.,Ltd. Address before: 442000 No.2, 7th floor, unit 1, family building, Federation of trade unions, 8 Gongyuan Road, Shiyan City, Hubei Province Patentee before: Liu Shangtian |