CN100381737C - Bidirectional non-return valve - Google Patents
Bidirectional non-return valve Download PDFInfo
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- CN100381737C CN100381737C CNB200510093371XA CN200510093371A CN100381737C CN 100381737 C CN100381737 C CN 100381737C CN B200510093371X A CNB200510093371X A CN B200510093371XA CN 200510093371 A CN200510093371 A CN 200510093371A CN 100381737 C CN100381737 C CN 100381737C
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Abstract
The invention relates to a bidirectional check valve, which comprises: a hollow muffle, a connecting muffle, a valve top rod, the first valve, the second valve, the first pressure adjuster, the second pressure adjuster and a gas inlet connector, wherein two ends of hollow muffle are connected to the valve top rod and gas inlet connector; the valve top rod is sheathed with connecting muffle; the hollow muffle has the first and second muffles, to independently contain the first container and the second container; the first container contains the second valve; the second valve has one containing groove, to contain the first valve and the first pressure adjuster; and the second container can contain the pressure adjuster.
Description
Technical field
The present invention relates to a kind of bidirectional non-return valve, refer to especially a kind of make pressurized gas or fluid by the time have a check valve that produces two-way check function.
Background technique
At present employed on the market tyre inflater or tyre pressure sensor all are installed on the cranked tire valve on the tire, use the force value of detecting inside tires.And the tyre inflater of prior art mainly comprises a charging air inlet, a pressure gauge and an air inlet controller, and be connected in an air compressor, make that the user can be by controlling the air inlet controller, the high-pressure air that air compressor produced is imported inside tires via charging air inlet, and measure the tire internal pressure simultaneously at same intake duct by pressure gauge.But because its force value is difficult to do setting, often cause inside tires pressure excessive or not enough, must discharge or pressurising the inside tires gas pressure repeatedly, and inconvenience when causing inflation or the danger in the driving.
Number the tire pressure detector that is disclosed in No. 578706 at the TaiWan, China patent announcement in addition, then tire pressure detector directly is installed in inside tires,, often cause the inconvenience in the dismounting though can be convenient to carry out the detecting of tire pressure internal pressure.For further making tire pressure detector be convenient to installing and use, alter course gradually at present tire pressure detector directly is installed on the cranked tire valve of outside tires, but also often cause trouble for tyre inflation, and be difficult to correctly do setting, correct suitable tire pressure size is provided at tyre inner pressure.
Summary of the invention
Main purpose of the present invention, be to provide a kind of bidirectional non-return valve, make when pressurized gas (or fluid) are entered by the inlet hole of bidirectional non-return valve one end, pressurized gas (or fluid) are pushed open first valve body when pressure improves after, input to the inside for the treatment of the filling object of this bidirectional non-return valve the other end, surpass going up in limited time of first valve body setting and treat filling object pressure inside when this, this treats that the pressurized gas (or fluid) of filling object inside are closed first valve body automatically and pushed second valve body simultaneously open, and discharge by inlet hole, use this other end of maintenance bidirectional non-return valve and treat the constant voltage of filling object inside.
Another object of the present invention is to provide a kind of bidirectional non-return valve, can adjust and control the excessive pressure that releases the internal high pressure gas (or fluid) for the treatment of the filling object of second valve body to reach by adjusting the pressure that bears of second valve body.
A further object of the present invention, be to provide a kind of bidirectional non-return valve, can be applicable on the tire pressure detector, provide pressurized gas just or backward unidirectional output, pass to this tire pressure detector and this tire pressure drawn, for this tire pressure of detecting, and the present invention can adjust the size of this tire pressure setting value.
For reaching above-mentioned purpose, bidirectional non-return valve of the present invention mainly includes: a hollow sleeve, it has first sleeve part and second sleeve part, and the internal diameter of first sleeve part is less than second sleeve part, and constitute first putting chamber and second putting chamber respectively in the inside of first sleeve part and second sleeve part, be formed with crossette portion between first putting chamber and second putting chamber; One valve push rod is provided with an air outlet hole, this valve push rod lower end and the first sleeve part bolt; One connects body, is the body of a hollow, and its bottom is socketed on the valve push rod, and this connection body can be connected to and treats on the filling object; One air input joint, it runs through and is provided with an inlet hole, and this air input joint is provided with one first spiro union portion and one second spiro union portion, and wherein this first spiro union portion engages with second sleeve part; One second valve body, the one end is opening and has an internal thread, the other end then has a duct, this second valve inner is formed with the containing groove of a hollow, and between this containing groove and duct, being formed with a block face, this second valve body is placed in the first putting chamber inside, and can do in this first putting chamber inside longitudinally and move, and an end that has this duct on this second valve body extends to the second putting chamber inside, and corresponds in this crossette portion place at this second valve outer surface and be provided with a projecting ring section; One first valve body is placed in the containing groove inside of second valve body, and can do in this containing groove inside longitudinally and move, and an end of this first valve body has a push rod, and this pushing rod sleeve places the inside, duct of second valve body, and the other end then has a bulge loop; One first pressure is adjusted assembly, it has a compresses elastomeric and and adjusts nut, the adjustment nut of this first pressure adjustment assembly is fixed in the internal thread of second valve body threadably, and be equipped with through hole, the compresses elastomeric that this first pressure is adjusted assembly then is mounted on this first pressure and adjusts between the bulge loop of the adjustment nut of assembly and first valve body, make the valve body of winning to bear this first pressure and adjust the elastic force of the compresses elastomeric of assembly and pass, and make the bulge loop of first valve body be adjusted the elastic force overhead of compresses elastomeric of assembly by first pressure on the block face of second valve body towards the duct of second valve body one end; And one second pressure adjust assembly, it has a compresses elastomeric and and adjusts nut, the compresses elastomeric that this second pressure is adjusted assembly is mounted on the end that second valve body has the duct, the adjustment nut that this second pressure is adjusted assembly then is fixed on the internal thread of second sleeve part of hollow sleeve threadably, and be equipped with through hole, the compresses elastomeric that makes second pressure adjust assembly is located in second valve body and second pressure is adjusted between the adjustment nut of assembly, this second pressure is adjusted assembly can provide elastic force, make second valve body must bear this second pressure and adjust the elastic force of assembly and pass, make between the set oil seal ring of the projecting ring section end face of second valve body and interior crossette portion and fit tightly the also airtight effect of tool towards the opening of first putting chamber.
Description of drawings
Fig. 1 is bidirectional non-return valve first embodiment's of the present invention generalized section;
Fig. 2 is that bidirectional non-return valve shown in Figure 1 is installed in the schematic representation on the tire;
Action schematic representation when Fig. 3 inflates for bidirectional non-return valve shown in Figure 1 is applied to vehicle tyre;
Fig. 4 is applied to full and the action schematic representation when stopping air inlet of inflating tyres of vehicles for bidirectional non-return valve shown in Figure 1.
Wherein, reference character:
1 bidirectional non-return valve, 2 tire pressure detectors
3 tires, 4 cranked tire valves
5 connect body 6 charging air inlets
10 hollow sleeves
12 first sleeve parts, 122 first putting chambers
Crossette portion in 13
14 second sleeve parts, 142 second putting chambers
16 internal threads, 18 internal threads
20 connect body 22 internal threads
24 inner grooves, 242 rubber washers
30 valve push rods, 32 air outlet holes
34 outside threads, 36 bulge loops
362 oil seal rings, 38 annular grooves
39 prominent mouth 40 first valve bodies
42 push rods, 44 bulge loops
45 rubber washers, 50 second valve bodies
51 projecting ring sections, 52 containing grooves
53 oil seal rings, 54 internal threads
56 ducts, 58 block faces
60 first pressure are adjusted assembly 62 compresses elastomeric
64 adjust nut 642 through holes
70 second pressure are adjusted assembly 72 compresses elastomeric
74 adjust nut 742 through holes
80 air input joints, 82 inlet holes
84 first spiro union portions, 842 outside threads
844 annular grooves, 846 oil seal rings
86 second spiro union portions, 862 outside threads
Embodiment
Below accompanying drawing and preferred embodiment are elaborated, thereby further understand structure of the present invention, feature and purpose thereof.
See also shown in Figure 1ly, it is the generalized section of one embodiment of the invention.As shown in the figure, bidirectional non-return valve 1 of the present invention includes a hollow sleeve 10, a connection body 20, a valve push rod 30, one first valve body 40, one second valve body 50, one first pressure adjustment assembly 60, one second pressure adjustment assembly 70 and an air input joint 80.On combining structure, valve push rod 30 and air input joint 80 are located to be spirally connected respectively in hollow sleeve 10 two ends, and are arranged with connection body 20 on valve push rod 30.Again, this hollow sleeve 10 has one first sleeve part 12 and second sleeve part 14, and forms one first putting chamber 122 and one second putting chamber 142 respectively in first sleeve part 12 and second sleeve part 14.Ccontaining second valve bodies 50 in first putting chamber 122, and be formed with a containing groove 52 in second valve body 50, can ccontaining first valve body 40 and first pressure adjust assembly 60; Then can adjust assembly 70 by ccontaining second pressure in second putting chamber 142.According to this, constitute bidirectional non-return valve 1 structure of the present invention.
Say it more in detail, the present invention's hollow sleeve 10 wherein is a hollow tube, and the inner edge place of hollow sleeve 10 both ends opens has an internal thread 16,18 respectively, for respectively with valve push rod 30 and air input joint 80 bolts.This hollow sleeve 10 has one first sleeve part 12 and one second sleeve part 14, and wherein, first sleeve part, 12 opening ends are by internal thread 16 and valve push rod 30 bolts, and second sleeve part 14 is then by internal thread 18 and air input joint 80 bolts.The internal diameter of first sleeve part 12 is less than second sleeve part 14, and constitutes first putting chamber 122 and second putting chamber 142 respectively at first sleeve part 12 and second sleeve part, 14 inside.Be formed with crossette portion 13 in because of difference in internal diameters between first putting chamber 122 and second putting chamber 142.
Valve push rod 30 is equipped with an air outlet hole 32 along the place, axle center.Valve push rod 30 rear surfaces have an outside thread 34, this outside thread and first sleeve part, 12 bolts.And these valve push rod 30 surfaces have a bulge loop 36, this bulge loop bottom surface is equipped with an oil seal ring 362, make that oil seal ring 362 can form airtight effect between the valve push rod 30 and first sleeve part 12 when valve push rod 30 is fixed in first sleeve part 12 threadably.Have an annular groove 38 at valve push rod 30 upper ends in addition, connect body 20 in order to socket.Valve push rod 30 upper ends then have an outwards outstanding prominent mouth 39.
Connecting body 20 is the body of a hollow, and its bottom is socketed on the annular groove 38 of valve push rod 30.These connection body 20 internal surfaces have an internal thread 22, this internal thread can be for being bolted on the object to be measured, for example can be bolted on the valve of tire, and the internal surface of this connection body is provided with an inner groove 24, and being equipped with a rubber washer 242 on the prominent mouth 39 of above-mentioned valve push rod 30, this rubber washer 242 is positioned to connect the inner groove 24 of body 20.
Second pressure is adjusted assembly 70 and is had a compresses elastomeric 72 and an adjustment nut 74.The compresses elastomeric 72 that second pressure is adjusted assembly is mounted on the end that second valve body 50 has duct 56,74 on the adjustment nut that second pressure is adjusted assembly is fixed on the internal thread 18 of second sleeve part 14 threadably, and the compresses elastomeric 72 of assembly is located in second valve body 50 and second pressure is adjusted between the adjustment nut 74 of assembly so that second pressure is adjusted.Second pressure is adjusted assembly 70 can provide elastic force to second valve body 50, and adjust the pressure set points of this second valve body, make second valve body 50 must bear second pressure and adjust of the opening passing of the elastic force of assembly 70, and the projecting ring section 51 of second valve body 50 and 13 generations of oil seal ring 53 and interior crossette portion are fitted tightly and the airtight effect of tool towards first putting chamber 122.Be equipped with the through hole 742 of ventilation usefulness on the adjustment nut 74 of second pressure adjustment assembly in addition.
Please consult Fig. 3 and shown in Figure 4 simultaneously, when inflation is used, bidirectional non-return valve 1 of the present invention connection body 20 wherein is connected to treats filling object (tire for example, the suction port of air groove or pressure tank etc., the 3rd figure and the 4th figure do not show), make when pressed gas is entered by the inlet hole 82 of bidirectional non-return valve one end, when the pressure of charge air conditioning is higher than the pressure set points (promptly first pressure is adjusted the compresses elastomeric 62 and the relative setting relation of adjusting nut 64 of assembly) of first valve body 40, pushed open this first valve body 40, and input gas is treated the inside (as shown in Figure 3) of filling object to this.Yet, treat filling object pressure inside when this and surpass the upper limit (pressure set points of setting of second valve body 50, promptly second pressure is adjusted the compresses elastomeric 72 and the relative setting relation of adjusting nut 74 of assembly) time, and stop in real time inflating, this treats that the pressurized gas of filling object inside then can close first valve body 40 automatically and push second valve body 50 simultaneously open, and discharge (as shown in Figure 4) by inlet hole 82, use maintenance and treat the constant voltage of filling object inside.In addition, also can adjust the elasticity strength of 74 on the adjustment nut of assembly at second valve body 50 and second pressure by adjusting and control compresses elastomeric 72 that second pressure adjusts assembly, thereby can adjust the pressure that bears of this second valve body 50, and then can reach the pressure set points that the filling object is treated in adjustment.
Bidirectional non-return valve of the present invention also can draw second valve body, 50 gas pressures of letting out that overflow on the connecting pipeline that passes to pressure-detecting device, that is bidirectional non-return valve of the present invention can be used and be connected on the connecting pipeline of the tyre inflater of air compressor, pressure detection device or vehicle tyre and tire pressure detector etc.One embodiment of the invention are to be that example describes with the tire pressure detector that is applied in vehicle.Shown in the 2nd figure, on the implementation, the present invention is that the connection body 20 with bidirectional non-return valve 1 one ends is fixed on the cranked tire valve 4 set on the vehicle tyre 3 threadably; Second spiro union portion 86 of the air input joint 80 of bidirectional non-return valve 1 the other end then can be connected with a tire pressure detector 2 by a connection body 5.
See also equally shown in Figure 3, the action schematic representation when it is used one embodiment of the invention and inflate for vehicle tyre.When user's desire is inflated tire 3 and charging air inlet 6 on tire pressure detector 2 when carrying out aeration, the pressurized gas of being inculcated can be by connecting body 5 transmission, enter by the inlet hole 82 on the air input joint 80 of bidirectional non-return valve 1, and adjust via this inlet hole 82 and second pressure assembly adjustment nut 74 through hole 742 and input in second putting chamber 142 of hollow sleeve 10.The high-pressure gas pressure that is produced when wherein inflating can promote first valve body 40 and move to adjustment nut 64 places that first pressure is adjusted assembly 60, rubber washer 45 and 58 tightness that kept of block face on the bulge loop 44 of the valve body 40 of winning are removed, and make pressurized gas to enter in the containing groove 52 via duct 56, input to tire 3 inside via through hole 642, first putting chamber 122, air outlet hole 32 and cranked tire valve 4 in regular turn again, so that tire 3 is inflated.Because this moment, tire pressure detector 2 communicated with tire 3 inside by first valve body of opening 40, therefore, this tire pressure detector 2 shows this tire 3 pressure inside simultaneously.And above-mentioned this charging air inlet 6 is connected with tire pressure detector 2, and has the unidirectional check valve structure (not shown) of general cranked tire valve 4.
Please consult in addition shown in Figure 4ly simultaneously, it uses one embodiment of the invention in inflating action schematic representation full and when stopping air inlet for vehicle tyre.When vehicle tyre 3 air pressure inside are filled when full, because vehicle tyre 3 internal pressures will be greater than the pressure set points of second valve body 50, so unnecessary pressurized gas will be passed back in first putting chamber 122 by air outlet hole 32, and enter by through hole 642 in the containing groove 52 of second valve body 50, and promote first valve body 40 and move to duct 56 1 ends, so being fitted tightly, rubber washer 45 on the bulge loop 44 of the valve body of winning and 58 generations of block face can stop external high pressure gas to continue to flow into tires 3 inside via first valve body 40.And, in this simultaneously, because first valve body 40 has sealed, therefore only allowing that unnecessary pressurized gas are unidirectional is entered in second putting chamber 142 by first putting chamber 122, so the high-pressure gas pressure of inside tires can promote second valve body 50 simultaneously and move to the direction of second putting chamber 142, and make 13 tightness that kept of oil seal ring 53 and interior crossette portion on the projecting ring section 51 remove, the pressurized gas of this inside tires then can be via the gap between second valve body 50 and first putting chamber 122, flow in second putting chamber 142 by first putting chamber 122, and adjust the through hole 742 of the adjustment nut 74 of assembly in regular turn by second pressure, inlet hole 82 and connection body 5, and enter tire pressure detector 2 and detected, produce a detecting numerical value by this, and can stop to proceed inflation in real time.That is these tire pressure detector 2 perseverances can be reacted tire 3 pressure inside states at any time, and detect the pressure of this tire 3 according to this, in order to avoid inflate excessive or under-inflation and cause danger in the driving.
Moreover, because adjusting assembly 70, second pressure of the present invention can be fixed in position on the internal thread 18 in second putting chamber 142 threadably by adjusting nut 74, use and adjust and control compresses elastomeric 72 that second pressure adjusts assembly is adjusted 74 on the adjustment nut of assembly at second valve body 50 and second pressure elasticity strength, difference according to elasticity strength like this can be so that pressurized gas be interior also inequality to the excessive pressure of letting out by tire 3.In other words, by bidirectional non-return valve 1 of the present invention, can be in order to adjust and to set the size that charges into tire 3 internal gas pressures.
Can be understood by above-mentioned explanation, the present invention not only can be applied to the tire pressure detector of vehicle tyre, everyly needs restriction or is the device or the object of the input of the one-way high-pressure gas of fixation pressure or fluid, all can obtain good effect by the present invention.
Though the present invention is elaborated by above-mentioned preferred embodiment, the above only makes those skilled in the art can be easier to understand the present invention in order to explanation the present invention, is not to be used for limiting scope of the invention process.Therefore, all variation and modifications of being done according to described shape structure characteristics of claim scope of the present invention and spirit all should be contained in the scope of patent protection of the present invention.
Claims (9)
1. a bidirectional non-return valve is characterized in that, comprise,
One hollow sleeve, it is a hollow tube, the inner edge place of described hollow sleeve both ends open respectively has an internal thread, described hollow sleeve has first sleeve part and second sleeve part, and the internal diameter of described first sleeve part is less than described second sleeve part, and constitute first putting chamber and second putting chamber respectively in the inside of described first sleeve part and second sleeve part, be formed with crossette portion between described first putting chamber and second putting chamber;
One valve push rod is equipped with an air outlet hole along its place, axle center, and described valve push rod rear surface has an outside thread, this outside thread and the described first sleeve part bolt;
One connects body, is the body of a hollow, and its bottom is socketed on the described valve push rod, and has an internal thread in described connection body internal surface;
One air input joint, it is a long column body, its center is run through and is provided with an inlet hole, described air input joint is provided with one first spiro union portion and one second spiro union portion, described first spiro union portion and the second spiro union portion surface respectively are provided with an outside thread, wherein said first spiro union portion can with the described second sleeve part bolt;
One second valve body, it is a hollow cylinder, described second valve body, one end is opening and has an internal thread, the other end then has a duct, described second valve inner is formed with the containing groove of a hollow, and between described containing groove and duct, be formed with a block face, described second valve body is placed in the described first putting chamber inside, and can do in the first putting chamber inside longitudinally and move, and an end that has described duct on described second valve body extends in described second putting chamber, and the outer surface of described second valve body correspond to described in crossette portion place be provided with a projecting ring section;
One first valve body is placed in the containing groove inside of described second valve body, and can do in described containing groove inside longitudinally and move, and described first valve body, one end has a pushing rod sleeve and places inside, described duct, and the other end then has a bulge loop;
One first pressure is adjusted assembly, have a compresses elastomeric and and adjust nut, the adjustment nut of described first pressure adjustment assembly is fixed in the internal thread of the described second valve body containing groove threadably, and be equipped with the ventilation usefulness through hole, the compresses elastomeric that described first pressure is adjusted assembly is mounted on described first pressure and adjusts between the bulge loop of the adjustment nut of assembly and described first valve body, make described first valve body can bear described first pressure and adjust the elastic force of the compresses elastomeric of assembly and pass, and make described bulge loop be adjusted the elastic force overhead of compresses elastomeric of assembly by described first pressure on described block face towards the duct of described second valve body one end; And
One second pressure is adjusted assembly, have a compresses elastomeric and and adjust nut, the compresses elastomeric that described second pressure is adjusted assembly is mounted on the end that described second valve body has the duct, the adjustment nut that described second pressure is adjusted assembly then is fixed on the internal thread of described second sleeve part threadably, the compresses elastomeric that makes described second pressure adjust assembly is located in described second valve body and described second pressure is adjusted between the adjustment nut of assembly, described second pressure is adjusted assembly can provide an elastic force, making described second valve body must bear described second pressure adjusts the elastic force of assembly and passes towards the opening of described first putting chamber, make described second valve body projecting ring section and described in fit tightly between crossette portion and the airtight effect of tool, described second pressure is adjusted the through hole that is equipped with ventilation usefulness on the adjustment nut of assembly in addition.
2. bidirectional non-return valve according to claim 1, it is characterized in that, described valve push rod surface has a bulge loop, and the bulge loop bottom surface of described valve push rod is equipped with an oil seal ring, make that described oil seal ring can form airtight effect between described valve push rod and described first sleeve part when described valve push rod is fixed in described first sleeve part threadably.
3. bidirectional non-return valve according to claim 1 is characterized in that, described valve push rod upper end has an annular groove, can be in order to be socketed on described connection body.
4. bidirectional non-return valve according to claim 1 is characterized in that, described valve push rod top has an outwards outstanding prominent mouth.
5. bidirectional non-return valve according to claim 4 is characterized in that the internal surface of described connection body is provided with an inner groove, and the prominent muzzle of described valve push rod is equipped with a rubber washer, and described rubber washer is positioned described inner groove.
6. bidirectional non-return valve according to claim 1 is characterized in that, is positioned on described second valve body between described projecting ring section and described crossette portion to be arranged with an oil seal ring.
7. according to claim 1 a described bidirectional non-return valve, it is characterized in that, be positioned at the bulge loop of described first valve body and the periphery of the described push rod between described block face and be arranged with a rubber washer, in order to the bulge loop that increases described first valve body and the tightness between described block face.
8. according to claim 1 a described bidirectional non-return valve, it is characterized in that, the outer surface of first spiro union portion of described air input joint is provided with an annular groove, and described annular groove is equipped with an oil seal ring, make that described oil seal ring can form airtight effect between described air input joint and described second sleeve part when described air input joint is fixed in described second sleeve part threadably.
9. according to claim 1 a described bidirectional non-return valve, it is characterized in that described connection body is fixed on the valve set on the tire of a vehicle threadably, described air input joint then connects body by one and is connected with a tire pressure detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510093371XA CN100381737C (en) | 2005-08-26 | 2005-08-26 | Bidirectional non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510093371XA CN100381737C (en) | 2005-08-26 | 2005-08-26 | Bidirectional non-return valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1920361A CN1920361A (en) | 2007-02-28 |
| CN100381737C true CN100381737C (en) | 2008-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510093371XA Expired - Fee Related CN100381737C (en) | 2005-08-26 | 2005-08-26 | Bidirectional non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100381737C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889583A (en) * | 2016-05-19 | 2016-08-24 | 山东浩信机械有限公司 | Hub unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2323077A1 (en) * | 1975-09-05 | 1977-04-01 | Eaton Corp | DECOMPRESSION VALVE |
| GB2082734A (en) * | 1980-08-29 | 1982-03-10 | Winther Andrew R | A Valve and a Vehicle Tyre Deflation Signalling Means Incorporating the Valve |
| US4895199A (en) * | 1986-07-31 | 1990-01-23 | Paccar Inc | Tire inflation and deflation valve |
| EP0435715A1 (en) * | 1989-12-13 | 1991-07-03 | Hutchinson | Pressure vessel outlet control device |
| CN2100536U (en) * | 1991-08-26 | 1992-04-01 | 李树林 | Safety valve of inner tube valve |
| CN1227801A (en) * | 1998-03-02 | 1999-09-08 | 黄添财 | Tyre-pressure alarm |
| CN2402517Y (en) * | 1999-11-24 | 2000-10-25 | 王爱民 | Tyre explosion-proof device |
-
2005
- 2005-08-26 CN CNB200510093371XA patent/CN100381737C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2323077A1 (en) * | 1975-09-05 | 1977-04-01 | Eaton Corp | DECOMPRESSION VALVE |
| GB2082734A (en) * | 1980-08-29 | 1982-03-10 | Winther Andrew R | A Valve and a Vehicle Tyre Deflation Signalling Means Incorporating the Valve |
| US4895199A (en) * | 1986-07-31 | 1990-01-23 | Paccar Inc | Tire inflation and deflation valve |
| EP0435715A1 (en) * | 1989-12-13 | 1991-07-03 | Hutchinson | Pressure vessel outlet control device |
| CN2100536U (en) * | 1991-08-26 | 1992-04-01 | 李树林 | Safety valve of inner tube valve |
| CN1227801A (en) * | 1998-03-02 | 1999-09-08 | 黄添财 | Tyre-pressure alarm |
| CN2402517Y (en) * | 1999-11-24 | 2000-10-25 | 王爱民 | Tyre explosion-proof device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1920361A (en) | 2007-02-28 |
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Granted publication date: 20080416 |