CN1038157C - Pressure fluid direction control valve and its application in tyre pressure adjusting device - Google Patents
Pressure fluid direction control valve and its application in tyre pressure adjusting device Download PDFInfo
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- CN1038157C CN1038157C CN92112058A CN92112058A CN1038157C CN 1038157 C CN1038157 C CN 1038157C CN 92112058 A CN92112058 A CN 92112058A CN 92112058 A CN92112058 A CN 92112058A CN 1038157 C CN1038157 C CN 1038157C
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Abstract
The present invention belongs to a hydraulic control valve or a pneumatic control valve and the application thereof in a pneumatic regulating device for tyres, which is suitable for a hydraulic system or a pneumatic system and is particularly to suitable for the pressure maintaining operation, the pressure decreasing operation, the pressure increasing operation and the pressure measuring operation of tyres of an automobile in running. The present invention is characterized in that the control valve is provided with an input hole communicated with a pressure fluid source, a use hole communicated with an operating chamber, and an air exhaust hole communicated with the atmosphere. A plurality of passages and valves are arranged in the valve, and the passages and the valves are control by an electromagnetic valve to enable a pressure source to provide four kinds of pressure (atmospheric pressure, high pressure, low pressure and high-pressure pulse) fluid; after the being input into the input hole, the fluid enables all the valves to generate different motions, so the pressure maintaining operation, the pressure decreasing operation, the pressure increasing operation and the pressure measuring operation of the operating chamber can be completed.
Description
The invention belongs to pressured fluid or gas direction control valve, be applicable to the flow direction of control fluid in hydraulic pressure or the pressure system, be specially adapted to automobile tire in travelling is carried out pressurize, decompression, supercharging and pressure measurement work.
The road surface situation that is run in the automobile running is constantly to change, and the air pressure on different road surfaces in the tire should be different.For example, tire should be specified air pressure on good highway, to reduce running resistance and to prolong tyre life; Soft terrain or desert then require the air pressure in the tire lower, and the surface of contact with between increase and the ground prevents wheel sinkage For long-distance vehicle, especially Field Vehicle, in order to guarantee good passing ability is being arranged on the hover ground and on highway, can run at high speed, just need in the process of moving, the pressure that should be able to control in the tire along with the variation of road surface situation changes accordingly, that is to say, need tire exit decompression, a plenum pressure measurement job.By retrieval, D.B.P. (patent No. 2929894) has proposed the technological scheme that addresses this problem, but this patent is carried and is mainly contained following shortcoming on the structure: as the Pneumatic actuator of the air pressure of accepting solenoid valve output, and must be by the work of working in coordination of relay valve, outlet valve and tire valve; When deflating a tire, the indoor pressed gas of tyre cavity must be through tire valve, behind the rotary seal air chamber, emits through outlet valve again, and the venting circuit is long; Outlet valve cooperates the venting principle with tire valve be the resistance venting, and promptly the gas flow of being discharged by air release valve hole must be much smaller than the indoor gas flow that can enter tire valve of tyre cavity, so that tire valve is held open state, otherwise tire valve will be closed; Reduction along with tire pressure, the air pressure that enters in the tire valve also reduces, and makes that the effect to cured also reduces by this air pressure in the tire valve, the active force of the spring that is used for throttle down of never can resist, cause the opening degree of tire valve also more and more littler, further reduced venting speed.Generally speaking, its shortcoming is: venting speed is slow.Other has a U. S. Patent (patent No. is 4782879) that said structure has been made improvement; Original relay valve, outlet valve and tire valve have been replaced with tire valve, but the shortcoming of this tire valve is: the input hole of this valve and use has an one-way cock of closing by spring between the duct, the condition that input hole is connected with tire chamber institute siphunculus road, the air pressure that is input hole must exceed the minimum control air pressure of venting than tire pressure, otherwise passage disconnects, and the mensuration work of tire pressure just can not be carried out in the outside of tire valve input hole like this; So dress pressure transducer and by being loaded on the idol circle completely in the rotary seal air chamber on the pipeline between tire chamber and tire valve the electrical signal of survey air pressure is passed in the operator cabin, thereby this patent is structurally still very complicated.
The objective of the invention is to propose a kind of pressure fluid direction control valve of new structure, to overcome the shortcoming that above-mentioned patent exists, this control valve both can be used for hydraulic system, also can be used for pressure system, particularly can carry out pressurize, supercharging, decompression and pressure measurement work to automobile tire in travelling.
The object of the present invention is achieved like this: design a housing, this housing is formed by connecting with bolt by loam cake, valve body and lower cover three, between valve body and lower cover, accompany diaphragm and on housing, have four holes: a. input hole, it is connected with pipeline with the fluid source of pressure fluid (gas or liquid), and pressure fluid has four kinds of pressure: the pressure, low pressure that barometric pressure, high pressure promptly are higher than work chamber's (as tire) i.e. pressure and high-voltage pulse between barometric pressure and work chamber's regulation barometric minimum.B. use the hole, it is connected with pipeline with work chamber's (as tire); C. drain boles, its straight-through atmosphere, this hole can be one or more; D. standby hole, it seals with one-way valve, and is inoperative at ordinary times, when control system breaks down, can carry out pressure measurement, supercharging and decompression with the effective handling of external gas to work chamber's (as tire) through this hole.Also have three passage: a. to use passage between holes and the input hole in enclosure interior; B. use the passage between hole and the drain boles; C. use the passage between hole and the standby hole.When above-mentioned three passages are alternately realized opening and closing through control, can realize pressurize, supercharging, decompression and pressure measurement work to work chamber.
Advantage of the present invention: a. can finish supercharging, decompression, pressure measurement, the multiple work of pressurize, and b. is needed simple to this control valve device; C. be provided with standby hole, when control system breaks down, still can carry out pressure regulation work.
Introduce structure of the present invention and working principle and the application in tyre pressure adjusting device thereof in detail below in conjunction with accompanying drawing.Valve of the present invention proposes two kinds of structural types, i.e. A type and Type B altogether.
Fig. 1 is the general structure longitudinal sectional drawing of the present invention's (A type)
Fig. 2 is the present invention's's (Type B) a general structure longitudinal sectional drawing;
Fig. 3 uses valve of the present invention application example in the vehicle tyre barometric control unit.
Referring to Fig. 1, shown in the figure A type structure of the present invention.As seen from the figure, the present invention is made up of loam cake 1, valve body 2, diaphragm 4 and lower cover 3, and four transverse section (being profile) can be circle, square, rectangular or other shape, and they use fixedly connected being integral of bolt (among the figure draw in the end) successively.Have four holes on the loam cake 1, promptly use hole 6, leadout hole 5, charge into hole 7 and standby hole 25.Loam cake 1 constitutes chamber 8, above-mentioned each hole with valve body 2 and all is communicated with chamber 8.Use between hole 6 and the work chamber's (as tire, among the figure draw in the end) and be connected with pipeline.Have two holes on the valve body 2, be input hole 17, introduction hole 23, also have chamber 8, upper chamber 14 and a chamber 16, wherein, all be communicated with between input hole 17, introduction hole 23, chamber 8 and the chamber 14, the outlet periphery that is positioned at chamber 8 on the introduction hole 23 has individual boss, places the one-way valve 10 that floats above the boss.One-way valve 10 is cylindrical, and top has the radial groove 13 of across or Mi Zixing, relies on the pressure difference between input hole 17 and the use hole 6, makes the opening and closing of one-way valve 10 liftings with control introduction hole 23 of floating.It is radially spacing that the one-way valve 10 that floats relies on chambers 8 to do, and the periphery that relies on the boss of introduction hole 23 and charge into hole 7 is made the axle limit to the position.Chamber 16 is positioned at the center of valve body 2, is connected with leadout hole 5.A three-position valve bar 9 is housed in the chamber 16, and a blanking cover 24 is equipped with on its top, and the bottom of blanking cover 24 is thinner, and is fastening in axial center hole 11 tops of insertion three-position valve bar 9.This center hole opening down, blanking cover 24 tops contact with the boss of leadout hole 5 bottoms, a spring 22 is placed in the outside of three-position valve bar 9, its underpart contacts with the boss of valve body 2, its top contacts with boss on the blanking cover 24, rely on the elastic force of spring 22, make upwards top of blanking cover 24, leadout hole 5 is closed.Be sandwiched in the diaphragm 4 between valve body 2 and the lower cover 3, there is individual hole at its middle part, and the three-position valve bar passes through in 9 holes, and with pad 19 nuts 20 diaphragm 4 and three-position valve bar 9 is fixed.The top of diaphragm 4 is upper chamber 14, and the bottom is a lower chambers 15.One or more radial hole 12 they and axial center hole heart hole 11 are arranged on the three-position valve bar 9, be connected with lower chambers 15.There is a Sealing 21 to be installed in the circular groove of valve body 2 between valve body 2 and the three-position valve bar 9, makes between upper chamber 14 and the chamber 16 to separate.Be positioned at axial center hole over against the bottom periphery of lower cover 3 have one or more drain boleses 18, be used for fluid and enter atmosphere.In the standby hole 25 of loam cake 1, an one-way valve is housed, concrete structure is: a valve base 27 is installed in standby hole 25, the flange of unidirectional valve rod 26 is towards the inboard, its thin bar passes the hole 28 in the middle of the valve base 27, one end of spring 29 is pressed on the valve 27, and the other end is pressed on thin bar projection with 28 sealings of valve base hole.
Working principle of the present invention is as follows:
One, pressurize work: with the logical atmosphere in input hole 17 limits, in the chamber 8 at one-way valve 10 places that floats, owing to use hole 6 to be communicated with work chamber, make the one-way valve 10 that floats above be subjected to the fluid pressure action of work chamber, be barometric pressure and it is subjected to below, pressure reduction between the two makes unsteady one-way valve 10 press to the below, and introduction hole 23 is tightly sealed, and has stoped and has used the pressure fluids in the hole 6 to release through input hole 17.In addition, upper chamber 14 and lower chambers 15 all communicate with atmosphere, make the upper and lower balance of diaphragm 4, and diaphragm 4 does not move, three-position valve bar 9 does not also move, locate illustrated upper limit position, at this moment, under the effect of spring 22, blanking cover 24 tops upward, press leadout hole 5, make it sealing, let out another passage to atmosphere thereby cut off the pressure fluids that use in the hole 6.The present invention can be to having realized pressurize with the work chamber that uses hole 6 to link to each other like this.
Two, decompression work: be higher than the low-pressure fluid that barometric pressure is lower than work chamber's pressure again to input hole 17 inputs, owing to arriving and act on the hydrodynamic pressure of unsteady one-way valve 10 belows less than arriving the pressure that chambers 8 act on one-way valve 10 tops of floating through charging into hole 7 by use hole 6 through input hole 17 and introduction hole 23, therefore, float one-way valve 10 still with introduction hole 23 sealings, dead end; In addition, after low-pressure fluid enters upper chamber 14 by input hole 17, suffered above the diaphragm 4 is the low-pressure fluid effect, and suffered below the diaphragm 4 be barometric pressure, resiliently deformable takes place in both pressure official post diaphragms 4, drive three-position valve bar 9 overcome spring 22 active force and slightly to moving down, reach the neutral position, be that blanking cover 24 is opened leadout hole 5, and the lower end of three-position valve bar 9 does not have and lower cover 3 contacts, therefore, use between hole 6 and the drain boles 18 to be communicated with, like this, the pressure fluid in the work chamber just can be through use hole 6, leadout hole 5, chamber 16, radial hole 12, axial center hole 11 enters lower chambers,, reach the purpose of work chamber's decompression after drain boles 18 leaks into atmosphere;
Three, pressurized operation: in input hole 17, send into high-pressure liquid, force value is greater than the pressure in the work chamber, high-pressure liquid enters the moment after the diaphragm upper chamber 14, lower cover 3 is not touched in the lower end of three-position valve bar 9 because blanking cover 24 is opened, be that three-position valve bar 9 does not arrive the lower position, so the phenomenon that the pressure fluid of work chamber leaks through drain boles 18 can take place, but this situation moment promptly stops and changing normal operation over to: under the high-pressure liquid effect, diaphragm 4 distortion, drive three-position valve bar 9 and be displaced downwardly to the lower position, the lower end that is three-position valve bar 9 closely contacts with lower cover 3, because the axial center hole 11 on the three-position valve bar 9, periphery has projection, helps axial center hole 11 and is tightly sealed by lower cover 3.At this moment, use the passage between hole 6 and the drain boles 18 to be closed, the pressure fluid in the work chamber can not be let out to atmosphere.Float in addition one-way valve 10 below be subjected to the effect of high-pressure liquid, its pressure is greater than the pressure of its top from work chamber.Therefore, the one-way valve 10 that floats is pushed to the top, contacts with loam cake 1, and introduction hole 23 is opened, and at this moment, the radial groove 13 of high-pressure liquid on introduction hole 23, chamber 8, the one-way valve 10 that floats, charges into hole 7 and enters and use hole 6, makes work chamber's supercharging.
Four, pressure measurement work: after input hole 17 is carried a high-voltage pulse, the closing pressure fluid source.At this moment, the on all four action of this valve supercharging work: use the pathway closure between hole 6 and the drain boles 18; Use the passage between hole 6 and the input hole 17 to open.After the high-pressure liquid in the input hole 17 enters use hole 6, fluid pressure value in the input hole 17 progressively reduces, until with use hole 6 in force value equate, at this moment, fluid remains static, and the one-way valve 10 that floats is in quick condition in chamber 8, is contained in pressure transducer or pressure gauge on the continuous pipeline of the outside input hole of valve body, can record force value, this force value is the force value of work chamber.
The effect of standby hole 25 and one-way valve is: when control system breaks down, can utilize external air source to carry out handling in standby hole to tire pressure measurement, supercharging, decompression work.
Referring to Fig. 2, shown in the figure Type B structure of the present invention.As seen from the figure, this structure is made up of loam cake 101, valve body 102, diaphragm 104 and lower cover 103, and they use fixedly connected being integral of bolt (among the figure draw in the end) successively.Have three holes on the loam cake 101: use hole 106, leadout hole 105 and charge into hole 107, interconnect between them.Have on valve body 102: input hole 117, introduction hole 123, chamber 108 and upper chamber 114 also are interconnected between them, and charge into hole 107 and be communicated with using hole 106; Also have on the valve body 102 and drain chamber 112, hole 111 and drain boles 118, also be communicated with between them, and be connected with using hole 106 through leadout hole 105.Three-position valve bar 109 is positioned at the middle part of valve body 102, a head that diameter is bigger is arranged on top, respectively there is a boss upper-end surface of head and lower end surface, be respectively applied for opening and closing leadout hole 105 and hole 111, between three-position valve bar 109 and the valve body 102 Sealing 121 is housed, to prevent atria chamber 112 and the mutual seepage of upper chamber's 114 inner fluids.The periphery of diaphragm 104 is fixed between valve body 102 and the lower cover 103, there is a hole at the middle part, diaphragm 104 is passed in three-position valve bar 109 bottoms from the hole upper and lowerly respectively has a pad 119, shoulder on three's the dependence three-position valve bar 109, nut 120, make diaphragm 104 and three-position valve bar 109 be fixed into one.A spring 122 is arranged below pad 119, and its bottom contacts with lower cover 103.Spring 122 is in pressured state, with three-position valve bar 109 jack-up upwards, so that close leadout hole 105.Have an aperture 116 on the lower cover 103, lower chambers 115 is communicated with atmosphere.On introduction hole 123, chamber 108 inside, a unsteady one-way valve 110 is housed, and its upper-end surface is processed with the radial groove 13 of cross or rice font, and a standby hole and one-way valve are also arranged on the loam cake 101, among the figure draw in the end, and its 26S Proteasome Structure and Function is identical with A type structure.
The working principle of Type B structure and A type structure similar simply are described below:
One, pressurize work: input hole 117 is communicated with atmosphere, owing to use the pressure of hole 106 inner fluids to be higher than barometric pressure, therefore, the one-way valve 110 that floats moves down, and with introduction hole 123 sealings, three-position valve bar 109 is under spring 122 effects, with leadout hole 105 sealings, become packing state;
Two, step-down work: input is higher than the low-pressure fluid that barometric pressure is lower than work chamber's pressure again in input hole 117, at this moment, the one-way valve 110 that floats is closed introduction hole 123, but, because the pressure in the upper chamber 114 is greater than the pressure in the lower chambers 115, diaphragm 104 distortion, make three-position valve bar 109 move down into the neutral position, be that leadout hole 105 is opened, and hole 111 is not closed, therefore, use the fluid in the hole 106, be discharged to atmosphere through leadout hole 105, hole 111 with drain boles 118 and make work chamber's decompression.
Three, supercharging work: input is higher than the high-pressure liquid of work chamber's hydrodynamic pressure in input hole 117.At this moment, move on the one-way valve 110 that floats, introduction hole 123 is opened, input hole 117 is communicated with, with using hole 106 high-pressure liquid input service chamber.And three-position valve bar 109 under the effect of high-pressure liquid to being displaced downwardly to limit position, hole 111 is closed by the three-position valve club head, thereby, blocked the passage that uses between hole 106 and the drain boles 118.
Four, pressure measurement work: behind input hole 117 input high-voltage pulse fluids, the closing pressure source.At this moment, three-position valve bar 109 moves down into limit position, with the passage that uses between hole 106 and the drain boles 118, be that hole 111 is closed, and move on the one-way valve 110 that floats that introduction hole 123 is opened, input hole 117 is connected with using hole 106, but,, become state of rest so the fluid in the active chamber stops to flow because of pressure source is closed.Only need measure the force value on the exterior line that links to each other with input hole 117, i.e. the force value of work chamber.
The valve of the invention described above A type, Type B structure also can adopt unsteady one-way valve and structure with matching and three-position valve bar and structure with matching to make monomer respectively, two single valve body and function respective line (being equivalent to the valve inner duct) is communicated with again.
Referring to being inflation pressure of tires of vehicle controlling device sketch in travelling shown in Fig. 3 figure.30 is the pressure fluid direction control valve of introducing above, and by the front explanation as can be known, the controlling method of the valve of two kinds of structures of the present invention is identical.Be that example explanation is used the present invention and how to be reached the inflation pressure of tire of vehicle in travelling is regulated and measured now with first kind of structure of the present invention (A type).
The present invention 30 is fixed on the wheel, rotates with wheel, and it uses hole 6 usefulness pipelines 46 to be communicated with tire chamber 43, the hole (being positioned on the wheel hub) on the rotary seal air chamber 49 between its input hole 17 usefulness pipelines, 47 connection wheel hubs and the axle.Open on the central siphon that does not rotate that links to each other with vehicle body in another duct of rotary seal air chamber, and this hole connects a two-position two-way solenoid valve 48 open in usual by pipeline 50, and another hole of this solenoid valve is connecting pipeline 42,40,35,41 again.Pipeline 35 connects a two-position two-way solenoid valve 36 open in usual, this solenoid valve the other end leads to atmosphere, pipeline 40 connects Normally closed type two-position two-way solenoid valve 39, this solenoid valve connects reduction valve 38 with pipeline 34 again, this reduction valve connects gas receiver 31 with pipeline 37 again, pipeline 41 is connected to manometer 44 (as pressure gauge or pressure transducer) and Normally closed type two-position two-way solenoid valve 33, and this solenoid valve is communicated with gas receiver 31 by pipeline 32 again.Gas receiver 31 is by pipeline connection air compressor (drawing in the end), and gas receiver also is connected to manometer 45.
This device is as follows to tire pressure regulation, pressure measurement and pressurize working procedure.
Pressurize work: all solenoid valves do not connect, normally closed solenoid valve 39 stops the gas of low pressure and normally closed solenoid valve 33 to stop the gas of high pressure to enter pipeline 42, normally open solenoid valve 36 is communicated with atmosphere with pipeline 35, so the input hole 17 of pipeline 50, rotary seal air chamber 49, pipeline 47 and tire valve 30 is communicated with atmosphere through normally open solenoid valve 48, pipeline 42.According to the explanation of front, valve 30 of the present invention is with the 43 sealing pressurizes of tire chamber.
Bleed work: only solenoid valve 36 solenoid valves 39 are connect.The normally closed solenoid valve 33 that does not connect electricity stop the gas receiver pressurized gas enter pipeline 42, gas receiver pressurized gas after reduction valve 38 step-downs by the road 34, solenoid valve 39, pipeline 40 enter pipeline 42, electromagnetic valve closed 36 stops and should discharge thus by low gas, and low-pressure gas enters the input hole 17 of valve 30 of the present invention again through solenoid valve 48, pipeline 50, rotary seal air chamber 49, pipeline 47.According to the explanation of front, valve 30 will use hole 6 to be communicated with drain boles 18, and tire chamber 43 internal pressure gases 46 6 backs, use hole that enter valve 30 of the present invention are by the road discharged to atmosphere by drain boles 18.
Plenum work: only solenoid valve 36, solenoid valve 33 are connect, gas receiver 31 inner high voltage gases by the road 32, solenoid valve 33, the pipeline 41 opened enter pipeline 42, stop pressurized gas to be sewed to atmosphere thus because solenoid valve 36 has cut out, because normally closed solenoid valve 39 is still closed blocking-up pipeline 40.The high pressure air that enters pipeline 42 enters the input hole 17 of valve 30 through hold one's breath chamber 49, pipeline 47 of solenoid valve 48, pipeline 50, rotary seal.The working principle of the valve of having explained according to front explanation of the present invention 30, use 6 with drain boles 18 between passage be closed, input hole 17 and the channel connection that uses hole 6, high pressure air 46 is imported tire chambers 43 by the road.
Pressure measurement work: connect electricity for solenoid valve 36, solenoid valve 33, and then give solenoid valve 33 outages.Therefore, a highpressure pulse is arranged in pipeline 42, because solenoid valve 36 still cuts out, the unique passage of this high voltage pulse gas is the hole input 17 that enters valve 30 through solenoid valve 48, pipeline 50, rotary seal air chamber 49, pipeline 47.According to the front explanation, the use hole 6 in the valve 30 and the pathway closure of drain boles 18.High pressure draught in the input hole 17 is to using hole 6, and through the time of short duration, input hole 17 internal air pressures reach with use hole 6 internal air pressures and equate.The pressure gauge 44 shown atmospheric pressure values that are connected on the pipeline 41 are the tire pressure value.
To the left tire pressure measurement, right tire institute connection solenoid valve 48 should be connect electricity as only before aforesaid operations, make right tire valve 30 can not accept pulse air pressure, then barometer 44 only shows the left tire atmospheric pressure value; , should earlier left tire institute connection solenoid valve 48 be connect right tire pressure measurement as only; Make left tire valve 30 can not accept pulse air pressure.Then pressure gauge 44 only shows right tire pressure value.
Each vehicle bridge be subjected to one group of solenoid valve 33,39,36, about 48 control, the control of each bridge is independent mutually.
Standby hole 25 provides the artificial auxiliary inflation to tire, standby mouthful of venting and pressure measurement, and wheel must stop operating when using standby mouthful.Directly be communicated with standby mouthful with peripheral hardware high-pressure air source pipeline, promptly inflatable.With instrument unidirectional valve rod 26 inwardly is pressed into, in the tire chamber 43 gases can be by the road 46, use hole 6, unidirectional valve seat endoporus 28 backs to emit by standby hole 25.Use special-purpose pressure-measuring meter also can be thus mouthful meter wheel air pressure.
Above-mentioned accompanying drawing and explanation thereof have provided embodiments of the invention.
Claims (6)
1. a pressure fluid direction control valve (A type), form by loam cake, valve body, matrix and lower cover, with fixedly connected being integral of spiral shell inspection, have the input hole that communicates with pressure fluid source on the valve, use hole that communicates with work chamber and the drain boles that communicates with atmosphere successively.
Its structure characteristic is:
Have on a, the loam cake (1) and use hole (6), leadout hole (5), charge into machine (7) and standby hole (25), be interconnected between them;
Have an input hole (17), an introduction hole (2) (3) on b, the valve body (2), also have chamber (8), upper chamber (14) and chamber (16), be interconnected between them, and be communicated with four holes on the loam cake (1);
C, introduction hole (23) are positioned at a side of chamber (8), its peripheral boss, place a unsteady one-way valve (10) on the boss, it is radially spacing that the one-way valve (10) that floats relies on chamber (8) to do, and the periphery that relies on the boss of introduction hole (23) and charge into hole (7) is made axial limiting;
There is a chamber (16) center of d, valve body (2), and a tubular shape three-position valve bar (9) is housed in the chamber (16), and a cylindrical blanking cover (24) is equipped with on the top of three-position valve bar (9).Blanking cover (24) bottom is thinner, and the center hole that inserts three-position valve bar (9) is interior fastening, and its top is thicker, contacts with the boss of leadout hole (5) bottom;
Have an axial center hole (11) and one or more radial hole (12) on e, the three-position valve bar (9), center hole (11) communicates with radial hole (12), they also are connected with chamber (16) and lower chambers (15), the outside of three-position valve bar (9) is with a spring (22), and the bottom of spring (22) contacts with the boss of valve body (2).
Between f, valve body (2) and the three-position valve bar (9) Sealing (21) is arranged, Sealing (21) be installed on and the circular groove of body (2) in;
There is individual hole at the middle part of g, diaphragm (4), and three-position valve bar (9) passes through from the hole, with pad (19) and nut (20) diaphragm (4) and three-position valve bar (9) is fixed;
Have one or more drain boleses (18) on h, the lower cover (3), a lower chambers (15) that communicates with drain boles (18).
2. as the said control valve of claim 1, it is characterized in that: one-way valve (10) top of floating has cross or rice font groove;
3. as the said control valve of claim 1, one-way valve and structure with matching thereof and three-position valve bar (9) and the structure with matching thereof of floating can be made monomer respectively, again two monomers be connected with respective line.
4. a pressure fluid direction control valve (Type B), form by loam cake, valve body, diaphragm and lower cover, with fixedly connected being integral of spiral shell inspection, have the input hole that communicates with pressure fluid source on the valve, use hole that communicates with work chamber and the drain boles that communicates with atmosphere successively.
Its structure characteristic is:
Have on a, the loam cake (101) and use hole (106), leadout hole (105) and charge into hole (107), be interconnected between them;
Have input hole (117), leadout hole (123), chamber (108) and upper chamber (114) on b, the valve body (102), also be interconnected between them, and be communicated with using hole (106) through charging into hole (107); Also have on the valve body (102) and drain chamber (112), hole (111), drain boles (118), also be communicated with between them, and footpath leadout hole (105) is connected with using hole (106);
C, three-position valve bar (109) are positioned at the middle part of valve body (102), and a head that diameter is bigger is arranged at its top, and respectively there is a boss upper-end surface of head and lower end surface;
There is a hole at the middle part of d, diaphragm (104), the bottom of three-position valve bar (109) is passed through from the hole, diaphragm (104) upper and lower respectively has a pad, three's top relies on the shoulder on the three-position valve bar (109), the bottom relies on nut (120), and diaphragm (104) and three-position valve bar (109) are fixed into one.
Between e, pad (119) and the lower cover (103) compression spring (109) is housed;
Have an aperture (116) and lower chambers (115) on f, the lower cover (103).Both are interconnected, and are communicated with atmosphere;
G, a unsteady one-way valve (110) is housed in chamber (108) inside;
5. as the said control valve of claim 4, it is characterized in that: one-way valve (110) top of floating has cross or rice font groove;
6. as the said control valve of claim 4, it is characterized in that: the one-way valve that floats (110) and structure with matching and three-position valve bar (109) and structure with matching thereof can be made monomer respectively, again two monomers are connected with respective line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112058A CN1038157C (en) | 1992-09-30 | 1992-09-30 | Pressure fluid direction control valve and its application in tyre pressure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112058A CN1038157C (en) | 1992-09-30 | 1992-09-30 | Pressure fluid direction control valve and its application in tyre pressure adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1084944A CN1084944A (en) | 1994-04-06 |
| CN1038157C true CN1038157C (en) | 1998-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92112058A Expired - Fee Related CN1038157C (en) | 1992-09-30 | 1992-09-30 | Pressure fluid direction control valve and its application in tyre pressure adjusting device |
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| CN (1) | CN1038157C (en) |
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| CN101108576B (en) * | 2006-07-23 | 2010-11-03 | 曾干 | Automatic control device of tire pressure |
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| CN104019261B (en) * | 2014-06-18 | 2016-05-18 | 中国北方车辆研究所 | Vehicle tyre pressure control valve |
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| CN110077179B (en) * | 2019-05-19 | 2021-06-01 | 赵海荣 | Passive pressure stabilizer |
| CN110077180B (en) * | 2019-05-19 | 2021-02-19 | 大连元坤机械设备有限公司 | Automobile tire pressure stabilizer |
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|---|---|---|---|---|
| US478279A (en) * | 1892-07-05 | Apparatus for the manufacture of tubular articles of confectionery | ||
| DE2929894A1 (en) * | 1979-07-24 | 1981-02-05 | Daimler Benz Ag | Commercial vehicle tyre pressure control - has dynamic pressure actuated valve connected by switch valve to vent valve or pressure source |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US478279A (en) * | 1892-07-05 | Apparatus for the manufacture of tubular articles of confectionery | ||
| DE2929894A1 (en) * | 1979-07-24 | 1981-02-05 | Daimler Benz Ag | Commercial vehicle tyre pressure control - has dynamic pressure actuated valve connected by switch valve to vent valve or pressure source |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324245C (en) * | 2001-11-06 | 2007-07-04 | 阿克图安特公司 | Hydraulic device with breather assembly |
| CN1979067B (en) * | 2005-12-09 | 2010-05-12 | 中国国际海运集装箱(集团)股份有限公司 | Refrigerator with pressure regulation device |
| CN101108576B (en) * | 2006-07-23 | 2010-11-03 | 曾干 | Automatic control device of tire pressure |
| CN101574906B (en) * | 2008-05-09 | 2011-09-28 | 浙江吉利汽车研究院有限公司 | Controllable deflation type tire device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1084944A (en) | 1994-04-06 |
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