CN107255176A - Cavity space can compensate for the upper valve body and the pneumatic operated valve with the upper valve body of regulation - Google Patents
Cavity space can compensate for the upper valve body and the pneumatic operated valve with the upper valve body of regulation Download PDFInfo
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- CN107255176A CN107255176A CN201710557603.5A CN201710557603A CN107255176A CN 107255176 A CN107255176 A CN 107255176A CN 201710557603 A CN201710557603 A CN 201710557603A CN 107255176 A CN107255176 A CN 107255176A
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- lower valve
- chamber
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- 238000007789 sealing Methods 0.000 claims description 44
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000008859 change Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 31
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000013536 elastomeric material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses the upper valve body and the pneumatic operated valve using this upper valve body that cavity space can compensate for regulation, upper valve body includes being provided with valve element, upper valve chamber seal, upper Valve seal, upper valve spring, upper valve block piece in upper shell, housing；Valve core inside is provided with movable piston bush, and piston bush can make in upper valve core up and down deposits headroom so as to changing inside upper shell；Pneumatic operated valve also includes being provided with coupled piston, lower valve chamber seal, lower Valve seal, lower valve spring, lower valve plug in lower valve body, lower valve body；Upper valve body and lower valve body are all connected to independent air feed pump, and lower valve body is also connected to brake chamber, by the teamwork of upper lower valve body, change the break-make of gas circuit, and then control the air-flow for entering brake chamber to realize automobile brake.The present invention uses new valve element, can reach the braking effect of more efficient stable.
Description
Technical field
The present invention relates to braking automobile pneumatic operated valve field, and in particular to cavity space can compensate for upper valve body and the utilization of regulation
The pneumatic operated valve of the upper valve body.
Background technology
Pneumatic operated valve is the primary control among running brakes, the braking of primary brake system in double loop
Realize sensitive servo antrol during journey and release, brake valve mainly by epicoele piston, cavity of resorption piston, push rod, balancing spring,
Return spring (upper and lower cavity), epicoele valve, cavity of resorption valve, air inlet, gas outlet, exhaust outlet, passage composition.When driver steps on
During lower pedal, piston is pushed balancing spring by stretching pull bar, piston is moved down, and first closes drain tap, open into
Air valve, now the compressed air of gas receiver be filled with brake chamber through intake valve, promote air chamber diaphragm make brake cam rotate from
And realize wheel braking.
The cavity space of existing pneumatic operated valve upper valve body is fixed non-adjustable, and the dynamics of trampling reaches most in brake process
After big, then the air pressure in pneumatic valve chamber is not over peak value, does not compensate stopping power raising, therefore existing pneumatic operated valve
Stopping power can not tackle more severe working environment, and more excellent braking effect can not be reached during in face of emergency case.
The content of the invention
In order to solve the above technical problems, can compensate for the upper valve body of regulation and with this invention discloses cavity space
The pneumatic operated valve of valve body, it is desirable to provide a kind of cavity space of upper valve body can suitably change, in braking to providing gas in chamber
Pressure compensation, improves the pneumatic operated valve of skidding ability.
The technical solution adopted by the present invention is：
Cavity space can compensate for the upper valve body of regulation, including upper shell, upper chamber and upper valve storage that upper shell is communicated with
Air cavity, is additionally provided with upper valve pneumatic cavity；Valve element is provided with upper chamber, upper valve air storing cavity is provided with upper valve chamber seal, positioned at upper valve
The upper valve gasket on chamber seal top, the upper Valve seal being enclosed on chamber seal, it is placed in chamber seal and upper Valve seal
Between upper valve spring, be placed in the upper valve block piece of upper valve its lower part, upper valve pneumatic cavity is located at the bottom of upper shell.
Upper valve gasket is ring-type, is coaxially disposed with upper Valve seal, and upper valve gasket is fixed on upper chamber and connected with upper valve air storing cavity
Interface；And the intermediate throughholes of upper valve gasket allow to drive the lower end of piston to pass through.
Specifically, valve element is made up of piston bush and driving piston；Piston bush is connected and piston bush and upper casing with upper shell
The first cavity is formed between body；It is stepped piston and including three sections of upper, middle and lower, the epimere and upper casing of driving piston to drive piston
Internal wall contact or piston bush contact, stage casing are located in piston bush, and hypomere is located between upper chamber and upper valve air storing cavity
At connected entrance.Drive connection portion is additionally provided with the top of driving piston, drive connection portion is the connector of groove-like, and it is acted on
Contacted in outside drive link, bear to trample brake pedal transmission next pressure during braking and pass to driving piston, as
The driving force that driving piston is moved downward.
Further, piston bush is provided with back-moving spring and counterbalance spring, and back-moving spring one end is connected to piston bush, another
End is connected to the epimere of driving piston；Counterbalance spring one end is connected to piston bush, and the other end is connected to spring mountings or benefit
Repay regulating part.
Back-moving spring is connected with driving piston, and its role is to go up to provide restoring force for driving piston；Counterbalance spring with
Spring mountings are connected, and piston bush is flexibly connected with epicoele chamber interior walls, and piston bush is upper in upper valve body air inlet and exhaust process
Enter line slip in chamber, counterbalance spring provides restoring force for the reply of piston bush；Counterbalance spring is attached with compensation adjustment part,
Piston bush is compensation adjustment part provided with single movable part, in upper valve body air inlet and exhaust process, and compensation adjustment part is in work
Carry out up and down on plug sleeve, the size of headroom is deposited in the inside of regulation upper chamber, and counterbalance spring is that compensation adjustment part is being replied
Restoring force is provided during initial position.
Further, upper shell is provided with upper valve air inlet and upper valve air gate, and upper valve air inlet connects upper valve air storing cavity, on
Valve air gate connects upper chamber and outside, and passage is provided between upper chamber and upper valve pneumatic cavity.The effect of passage be by
The gas of upper chamber imports upper valve pneumatic cavity.
Further, described piston bush is cylindrical sleeve tubular or inverted T-shaped sleeve-shaped, piston bush and upper chamber's internal face
It is slidably connected；
During from this piston bush, back-moving spring quantity is at least one, when back-moving spring quantity is for the moment, back-moving spring connects
It is connected to the epimere of driving piston；When back-moving spring quantity is more than for the moment, back-moving spring is sequentially coaxially located on piston bush；Reset bullet
Counterbalance spring is additionally provided with the outside of spring, counterbalance spring is connected to spring mountings；Described spring mountings are to be located at upper chamber
Internal ring catch.The effect of ring catch is to provide stress point for counterbalance spring.
Scheme described above is not limited to, piston bush is double layer sleeve barrel, and the internal layer bottom of piston bush is connected with outer bottom,
Groove is formed between internal layer and outer layer, the longitudinal cross-section of piston bush is " mountain " font, and piston bush is fixedly connected with upper chamber, specifically
Connected mode can be step inlay card attachment structure and coordinate snap ring to fix, and can also be connected by screw bolts, buckle connects
Connect.
During from this piston bush, formed inside piston bush with driving piston in the second cavity, the second cavity provided with reset
Spring, back-moving spring upper end is connected to driving piston epimere and lower end is connected to piston bush；Piston bush outer wall and upper enclosure inner wall
Face, which is formed, is provided with the company of being additionally provided with compensation adjustment part, the 3rd cavity in upper end closed, the 3rd cavity of lower ending opening, the 3rd cavity
Connect the counterbalance spring of compensation adjustment part and the 3rd cavity top end；Described compensation adjustment part is back-up ring, and back-up ring is located at the 3rd cavity
It is interior, it can be slided during upper valve body air inlet and exhaust in the 3rd cavity, headroom, back-up ring are deposited in the inside for changing upper chamber
It is in close contact with the internal face of the 3rd cavity, prevents gas leakage.
Scheme described above is not limited to, piston bush is double layer sleeve barrel, and the internal layer bottom of piston bush is connected with outer bottom,
Groove is formed between internal layer and outer layer, the longitudinal cross-section of piston bush is " mountain " font, and piston bush is slidably connected with upper chamber, is connected
Face is sealed by sealing ring, prevents gas leakage.
During from this piston bush, formed inside piston bush with driving piston in the second cavity, the second cavity provided with reset
Spring, back-moving spring upper end is connected to driving piston epimere and lower end is connected to piston bush；The outer pars intramuralis of piston bush is provided with upper end
It is provided with closing, the 4th wall of lower ending opening, the 4th wall in compensation adjustment part, the 4th cavity and is additionally provided with connection compensation adjustment
The counterbalance spring of part and the 4th cavity top end；Described compensation adjustment part is back-up ring, and back-up ring is located in the 4th cavity, in upper valve body
It can be slided during air inlet and exhaust in the 4th cavity, headroom, back-up ring and the 4th cavity are deposited in the inside for changing upper chamber
Internal face be in close contact, prevent gas leakage.
Further, the epimere side wall and stage casing side wall of described driving piston are provided with sealing ring, epimere side
The sealing ring of wall is in close contact with upper chamber's internal face close contact or with piston bush internal face, the sealing of stage casing side wall
Circle is in close contact with piston bush internal face.
Further, it is provided with sealing ring outside the piston bush of the valve element, sealing ring closely connects with upper chamber internal face
Touch.
Set the meaning of sealing ring to be to prevent gas leakage, keep air-tightness inside pneumatic operated valve, so as to ensure that pneumatic operated valve works
Validity and accuracy.
Further, provided with driving piston block piece inside described upper chamber, or provided with driving piston in piston bush
Block piece.The effect of driving piston block piece is to limit the extreme position that piston bush is moved upwards, it is to avoid driving piston comes off.
Further, described upper valve chamber seal is the sleeve with air gap washer, and air gap washer covering driving is lived
Fill in the air gap between lower end and connected entrance.
Drive piston to carry out up and down, be located at high limit position, its lower end and connected entrance under driving piston normality
Flush or the edge positioned at upper chamber one end of connected entrance, the now closed connected entrance of air gap washer, upper chamber and upper valve air storing cavity
Between keep absolutely gas-tight；Piston is driven to move downward in skidding, driving piston promotes upper valve chamber seal,
Air gap washer is opened on top, is connected between upper chamber and upper valve air storing cavity, the gas of upper valve air storing cavity enters upper chamber by connected entrance,
And upper valve pneumatic cavity is entered by passage.
Further, described upper valve spring is volute spring, one end and the upper valve chamber seal of upper valve spring slot
One end of contact and wide-mouth and upper valve washer contacts.Bigger decrement can be obtained using volute spring to return there is provided more sufficient
Multiple power, the production space of upper valve air storing cavity can be also reduced to a certain extent, have product to improving the intensity of upper valve body, saving resource
Pole meaning.
The effect of upper Valve seal is to keep lower valve spring axially compressed, it is to avoid spring sideslip；While upper Valve seal
The axial direction property that upper valve chamber seal can also be kept to move.
Further, described upper valve block piece, spring mountings, driving piston block piece are snap ring.Elasticity
Snap ring is easily installed, practical using flexible, and it is as the preferred scheme in the present invention, in the case where meeting requirement
Replace with other workpiece.
The lower valve body being connected, upper valve body are matched with the pneumatic operated valve for the upper valve body being described above, including with the upper valve body
Complete pneumatic operated valve is constituted with lower valve body.The mode that generally upper valve body and lower valve body are connected by screw bolts is connected.
Specifically, described lower valve body includes lower house, lower valve pneumatic cavity and lower valve gas storage that lower house is communicated with
Chamber；Coupled piston, upper connector of the upper end provided with connection upper valve chamber seal of coupled piston, connection are provided with lower valve pneumatic cavity
The lower end of piston is provided with piston head, and piston head is located at the connected entrance of lower valve pneumatic cavity and lower valve air storing cavity, coupled piston, on
Connector, piston head insertion；Upper valve pneumatic cavity and lower valve pneumatic cavity complement each other to form closed pneumatic cavity.
Lower valve air storing cavity is provided with lower valve chamber seal, and seal closing lower valve pneumatic cavity and the company of lower valve air storing cavity
Port, lower valve air storing cavity is additionally provided with the lower valve gasket positioned at lower valve chamber seal top, is enclosed on lower valve chamber seal
Lower Valve seal, the lower valve spring being placed between lower valve chamber seal and lower Valve seal, the lower valve plug for being placed in lower valve its lower part,
The lower valve block piece being connected with lower valve plug.
Lower valve gasket is ring-type, is coaxially disposed with lower Valve seal, lower valve gasket is fixed on lower valve pneumatic cavity and lower valve gas storage
At chamber connector；And the intermediate throughholes of lower valve gasket allow piston head to pass through.
Lower house is provided with lower valve air gate and lower valve air inlet, and lower valve air gate connects lower valve pneumatic cavity, lower valve air inlet
Connect lower valve air storing cavity.
Further, described lower valve chamber seal is the sleeve with air gap washer, air gap washer covering piston head
Air gap between connected entrance.
Coupled piston can carry out it is up and down, under coupled piston normality be located at high limit position, piston head and connected entrance
Flush or the edge positioned at upper chamber one end of connected entrance, the now closed connected entrance of air gap washer, lower valve pneumatic cavity and lower valve storage
Absolutely gas-tight is kept between air cavity；In skidding, the gases at high pressure of upper chamber enter pneumatic cavity, and coupled piston is in pneumatic cavity
Gas pressure under move downward, piston head promotes lower valve chamber seal, and air gap washer is opened on top, lower valve pneumatic cavity and lower valve storage
Connected between air cavity, the gas in lower valve pneumatic cavity enters lower valve air storing cavity by connected entrance, and is discharged by lower valve air inlet.
Further, described lower valve spring is volute spring, one end and the lower valve chamber seal of lower valve spring slot
One end of contact and wide-mouth and lower valve washer contacts.Bigger decrement can be obtained using volute spring to return there is provided more sufficient
Multiple power, the production space of upper valve air storing cavity can be also reduced to a certain extent, have product to improving the intensity of upper valve body, saving resource
Pole meaning.
The effect of lower Valve seal is to keep lower valve spring axially compressed, it is to avoid spring sideslip.
Further, in described upper connector insertion upper valve cavity seal, upper connector outer wall is provided with sealing ring, close
Seal is brought into close contact with valve chamber seal internal face.The effect of upper connector is the axial direction for keeping coupled piston to move up and down
Property.
Further, described lower Valve seal side wall is provided with sealing ring, and the internal face of sealing ring and lower valve air storing cavity
It is brought into close contact.Set the meaning of sealing ring to be to prevent gas leakage, keep air-tightness inside pneumatic operated valve, so as to ensure that pneumatic operated valve works
Validity and accuracy.
Further, described lower valve plug insertion lower valve air storing cavity, lower valve plug side is provided with sealing ring, and lower valve air storing cavity
Lower valve plug is fixed provided with lower valve plug block piece for inside；Lower valve is beyond the Great Wall provided with the lower connection in insertion lower valve cavity seal
Part, lower connector outer wall is provided with sealing ring, and sealing ring is in close contact with lower valve cavity seal internal face.The work of lower valve plug
With being, lower valve cavity seal is set to keep stable axial direction property in axial action.
Further, described lower valve plug block piece is snap ring.
Compared with prior art, the beneficial effects of the present invention are：
1. the present invention is detachably connected by upper valve body and lower valve body, it is easy to repair or safeguards.
2. the present invention sets valve element, the headroom of depositing of upper chamber is can adjust, is easy to during skidding provide gas
The compensation of pressure, the effect of skidding is more obvious；When skidding is terminated, upper chamber deposits headroom and can gradually contracted
Small, air pressure inside will not terminate to trample the phenomenon disappeared at once of brake force after brake pedal action according to linear reduction,
This technology can be applied to ramp assistant starting, using the teaching of the invention it is possible to provide certain reaction time reacts for driver, brings and preferably drives
Sail experience.
3. the present invention sets upper valve chamber seal and lower valve chamber seal, air gap is carried out using air gap washer close
Close, the two chambers of connection realize the conversion of connection and isolation, so as to control the circulation of gas, so set control effect good.
4. the present invention sets upper Valve seal control upper valve chamber seal, and using lower Valve seal and lower valve plug control lower valve
Chamber seal, compared with prior art, control effect are good, the motion axial direction of upper valve chamber seal and lower valve chamber seal
Property is good.
5. the upper valve spring and lower valve spring of the present invention use taper spring, the compression degree of spring is bigger, brings
Restoring force is stronger so that before skidding between the upper cavity of pneumatic operated valve and upper valve air storing cavity, lower valve pneumatic cavity and lower valve
Air-tightness between air storing cavity is good；When terminating skidding, the reply energy of upper valve cavity seal and lower valve cavity seal
Power is extremely strong, and air-flow is cut off in time, improves the accuracy of brake.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings show but the section Example of the present invention, therefore be not to be taken as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the sectional view of the present invention.
Fig. 2 is the stereogram of the present invention.
Fig. 3 is the partial enlarged drawing at A in Fig. 1.
Fig. 4 is the partial enlarged drawing at B in Fig. 1.
Fig. 5 is the first structure sectional view that valve element is used in embodiment two.
Fig. 6 is second of structure sectional view that valve element is used in embodiment two.
Fig. 7 is the first structure sectional view that valve element is used in embodiment three.
Fig. 8 is second of structure sectional view that valve element is used in embodiment three.
In above-mentioned accompanying drawing, reference is corresponding entitled：1- upper shells, 101- upper chamber, 102- upper valve air storing cavities,
103- upper valve pneumatic cavities, the upper valve air gates of 104-, 105- upper valve air inlets, 106- passages, 107- spring mountings, 108- drives
Piston block piece, 109- upper valve block pieces, 2- piston bush, 201- compensation adjustment parts, 3- driving pistons, 301- back-moving springs,
Valve air gate under 4- upper valve chamber seals, the upper valve gaskets of 401-, the upper valve springs of 5-, the upper Valve seals of 6-, 7- lower houses, 700-,
On 701- lower valve air inlets, 702- lower valve pneumatic cavities, 703- lower valve air storing cavities, 704- lower valve block pieces, 8- coupled pistons, 801-
Valve plug under Valve seal under valve spring under connector, 802- piston heads, 9- lower valve chamber seals, 10-, 11-, 12-.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Embodiments of the present invention include but is not limited to following implementation
Example.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 shows, present embodiment discloses the upper valve body that a kind of cavity space can compensate for regulation, including it is upper
Housing 1, upper chamber 101 and upper valve air storing cavity 102 that upper shell 1 is communicated with, is additionally provided with upper valve pneumatic cavity 103；Upper chamber 101
Interior to be provided with valve element, upper valve air storing cavity 102 is provided with upper valve chamber seal 4, the upper valve gasket positioned at the top of upper valve chamber seal 4
401st, the upper Valve seal 6 that is enclosed on chamber seal, the upper valve spring 5 being placed between chamber seal and upper Valve seal 6, it is placed in
The upper valve block piece 109 of the upper bottom of Valve seal 6, upper valve pneumatic cavity 103 is located at the bottom of upper shell 1.
Preferably, upper chamber 101 and upper valve air storing cavity 102 are cylindrical chamber, and valve element profile is cylinder.
Valve element is made up of piston bush 2 and driving piston 3；Piston bush 2 be connected with upper shell 1 and piston bush 2 and upper shell 1 it
Between to form the first cavity；It is stepped piston and including three sections of upper, middle and lower, the epimere and upper casing of driving piston 3 to drive piston 3
The internal face of body 1 is contacted or piston bush 2 is contacted, and stage casing is located in piston bush 2, and hypomere is located at upper chamber 101 and upper valve air storing cavity
At connected entrance between 102.
Preferably, driving piston 3 is cylindrical step piston, drive the epimere of piston 3, stage casing, hypomere diameter successively
Reduce.
Piston bush 2 is provided with back-moving spring 301 and counterbalance spring 302, and back-moving spring 301 is connected to the upper of driving piston 3
Section, counterbalance spring 302 is connected to spring mountings 107 or compensation adjustment part 201.
Preferably, back-moving spring 301 is connected to the epimere of driving piston 3 among the present embodiment.
Upper shell 1 is provided with upper valve air inlet 105, the connection of upper valve air inlet 105 upper valve air storing cavity 102, upper chamber 101 with it is upper
Passage 106 is provided between valve pneumatic cavity 103.
Preferably, upper valve air inlet 105 is circular port, and internal thread is provided with the outside port of upper valve air inlet 105.
Piston bush 2 is cylindrical sleeve tubular or inverted T-shaped sleeve-shaped, and piston bush 2 is slidably connected with upper chamber 101 internal face；
The quantity of back-moving spring 301 is at least one, when the quantity of back-moving spring 301 is for the moment, back-moving spring 301 is connected to driving piston 3
Epimere；When the quantity of back-moving spring 301 is more than for the moment, back-moving spring 301 is sequentially coaxially located on piston bush 2.
The outside of back-moving spring 301 is provided with counterbalance spring 302, and counterbalance spring 302 is connected to spring mountings 107；It is described
Spring mountings 107 be to be located at ring catch inside upper chamber 101.
Preferably, piston bush 2 is inverted T-shaped sleeve-shaped, and the quantity of back-moving spring 301 is one.
Drive the epimere side wall and stage casing side wall of piston 3 to be provided with sealing ring, the sealing ring of epimere side wall with
The internal face of upper chamber 101 is in close contact or is in close contact with the internal face of piston bush 2, the sealing ring and piston bush of stage casing side wall
2 internal faces are in close contact.
The outside of piston bush 2 of valve element is provided with sealing ring, sealing ring and the internal face close contact of upper chamber 101.
Preferably, it is provided with outside the epimere side wall and stage casing side wall and piston bush 2 of driving piston 3 annular recessed
Groove, sealing ring is arranged in annular groove；Sealing ring is the flexible seal ring that rubber is made.
The inside of upper chamber 101 is provided with driving piston block piece provided with driving piston block piece 108, or in piston bush 2
108。
Preferably, the inwall of upper chamber 101 is provided with annular groove in the present embodiment, and the inside of groove stops provided with driving piston
Part 108.
Upper valve chamber seal 4 is the sleeve with air gap washer, the air gap washer covering driving lower end of piston 3 and connected entrance
Between air gap.
Preferably, upper valve chamber seal 4 is T-socket, and air gap washer is arranged on one end of its major part.
Upper valve spring 5 is volute spring, and one end of the upper slot of valve spring 5 is contacted and wide-mouth with upper valve chamber seal 4
One end is contacted with upper Valve seal 6.
Upper valve block piece 109, spring mountings 107, driving piston block piece 108 are snap ring.
The present embodiment also discloses a kind of pneumatic operated valve：
As Figure 1 and Figure 4, with the pneumatic operated valve of previously described upper valve body, including be connected with upper valve body matching
Lower valve body；Described lower valve body includes lower house 7, lower valve pneumatic cavity 702 and lower valve air storing cavity 703 that lower house 7 is communicated with；
Coupled piston 8, upper connector of the upper end provided with connection upper valve chamber seal 4 of coupled piston 8 are provided with lower valve pneumatic cavity 702
801, the lower end of coupled piston 8 is provided with piston head 802, and piston head 802 is located at lower valve pneumatic cavity 702 and lower valve air storing cavity 703
At connected entrance, coupled piston 8, upper connector 801, the insertion of piston head 802；.
Preferably, lower valve body is attached with upper valve body by bolt, and lower valve pneumatic cavity 702 and upper valve pneumatic cavity 103 are matched somebody with somebody
Closed pneumatic cavity is formed after conjunction.
Preferably, coupled piston 8 is cylinder, and upper connector 801 and piston head 802 are cylinder, and coupled piston
8th, upper connector 801 and piston head 802 are coaxially disposed.
Lower valve air storing cavity 703 is provided with lower valve chamber seal 9, and seal closing lower valve pneumatic cavity 702 is stored up with lower valve
The connected entrance of air cavity 703, lower valve air storing cavity 703 is additionally provided with the lower valve gasket 901 positioned at the top of lower valve chamber seal 9, is enclosed on
Lower Valve seal 11 on lower valve chamber seal 9, the lower valve spring being placed between lower valve chamber seal 9 and lower Valve seal 11
10th, the lower valve plug 12 of the lower bottom of Valve seal 11, the lower valve block piece 704 being connected with lower valve plug 12 are placed in.
Lower house 7 is provided with lower valve air gate 700 and lower valve air inlet 701, and lower valve air gate 700 connects lower valve pneumatic cavity
702, the connection lower valve of lower valve air inlet 701 air storing cavity 703.
Preferably, lower valve air gate 700 and lower valve air inlet 701 are circular port, are entered in lower valve air gate 700 and lower valve
Internal thread is provided with the outside port of gas port 701.
Lower valve chamber seal 9 is the sleeve with air gap washer, between air gap washer covering piston head 802 and connected entrance
Air gap.
Preferably, lower valve chamber seal 9 is T-socket, and air gap washer is arranged on one end of its major part.
Lower valve spring 10 is volute spring, and one end of the slot of lower valve spring 10 is contacted and extensively with lower valve chamber seal 9
One end of mouth is contacted with lower Valve seal 11.
In the insertion upper valve cavity seal of upper connector 801, the outer wall of upper connector 801 is provided with sealing ring, sealing ring and valve
Cavity seal internal face is brought into close contact.
Preferably, upper connector 801 is integrally formed with coupled piston 8.
The lower side wall of Valve seal 11 is provided with sealing ring, and the internal face of sealing ring and lower valve air storing cavity 703 is brought into close contact.
Preferably, the side wall of lower Valve seal 11 is provided with annular groove, and sealing ring is arranged in annular groove；Sealing ring
It is the flexible gaskets being made up of elastomeric material.
The lower insertion lower valve of valve plug 12 air storing cavity 703, the lower side of valve plug 12 is provided with inside sealing ring, and lower valve air storing cavity 703
Lower valve plug 12 is fixed provided with the lower block piece of valve plug 12；Lower valve plug 12 is provided with the lower company in insertion lower valve cavity seal
Fitting, lower connector outer wall is provided with sealing ring, and sealing ring is in close contact with lower valve cavity seal internal face.
Preferably, lower connector is cylinder, and lower connector is integrally formed with lower valve plug 12.
Preferably, lower connector outer wall, the side of lower valve plug 12, which are provided with annular groove, groove, sets sealing ring；
Sealing ring is the flexible gaskets being made up of elastomeric material.
The lower block piece of valve plug 12 is snap ring.
It is the full content of the present invention above, its operation principle is：
Mode as described above assembles pneumatic operated valve, while upper valve air inlet 105 is connected to brake air pump；Lower valve goes out
Gas port 700 is connected to gas receiver, and lower valve air inlet 701 is connected to brake chamber.
During normal driving automobile, the gas that upper valve air inlet 105 enters is concentrated on inside upper valve air storing cavity 102；Lower valve is entered
The gas that gas port 701 enters enters lower valve air storing cavity 703.
When stepping on automobile brake pedal, pedal force is passed to by driving piston 3, driving by the drive link of automotive interior
Piston 3 is down moved, and is contacted and is promoted upper valve chamber seal 4 to move downward, and driving piston 3 connects with upper valve chamber seal 4
Contacting surface seal, now upper chamber 101 connects with upper valve air storing cavity 102, brake air pump in gases at high pressure pass sequentially through air inlet,
Upper valve air storing cavity 102, connected entrance, upper chamber 101, pneumatic cavity；
When reaching certain air pressure in pneumatic cavity, coupled piston 8 is down moved, and piston head 802 is contacted and promoted downwards
Lower valve chamber seal 9, the contact surface of piston head 13 and lower valve chamber seal 9 is sealed；Now lower valve pneumatic cavity 702 and lower valve
Air storing cavity 703 is connected；Gases at high pressure in gas receiver pass through lower valve air inlet 701, lower valve air storing cavity 703, connected entrance, lower valve gas
Dynamic chamber 702, lower valve air gate 700 realize skidding into brake chamber；Gas passes through upper valve outlet in upper chamber 101 simultaneously
Mouth 104, which is discharged to up to another brake chamber, realizes skidding.
When unclamping automobile brake pedal, driving piston 3 playbacks in the presence of upper valve spring 5, and upper chamber 101 stores up with upper valve
Air cavity 102 recovers state of isolation, and driving piston 3 air gap, upper chamber 101 and upper valve occurs with the contact surface of upper valve chamber seal 4
Gas in pneumatic cavity 103 enters the hollow inside of upper valve chamber seal 4 by air gap and is down discharged into coupled piston 8
Portion, and discharged by lower valve plug 12；Now coupled piston 8 is up moved until returning back to normality in the presence of lower valve spring 10
The contact surface of position, piston head 13 and lower valve chamber seal 9 occurs in air gap, lower valve pneumatic cavity 702 and lower valve air storing cavity 703
Gas by the way that the air gap is down into the inside of lower valve plug 12 and discharges lower valve body.
In above process, movable piston bush 2 is act as：Step on driving piston 3 and move downward promotion upper valve chamber
Seal 4 connects upper chamber 101 and upper valve air storing cavity 102, and piston bush 2 is moved on the net after air-flow enters upper chamber 101, increase
Upper chamber 101 deposits headroom, it is to avoid air pressure instantaneous value is excessive in upper chamber 101；The process moved upwards in coupled piston 8
In, as upper valve pneumatic cavity 103 deposits the reduction of headroom, piston bush 2 is continued up, and increase upper chamber 101 deposits gas sky
Between, making the entirety of upper chamber 101 and upper valve pneumatic cavity 103, to deposit headroom constant, then air pressure size keeps fixing, and will not increase connection
The air pressure resistance that piston 8 is moved upwards, coupled piston 8 is easier to playback, and also can smoothly be vented.
Embodiment two
Present embodiment discloses a kind of pneumatic operated valve, the building block and connected mode and embodiment of pneumatic operated valve in the present embodiment
Identical in one, its difference is：
In the present embodiment, upper valve body employs the different valve element of structure.
As shown in Figure 5, Figure 6, the valve element in the present embodiment, piston bush 2 is the sleeve that longitudinal cross-section is " mountain " font, piston
Set 2 is fixedly connected with upper chamber 101；Provided with reset in the inside of piston bush 2 and driving the second cavity of formation of piston 3, the second cavity
Spring 301, the upper end of back-moving spring 301 is connected to the driving epimere of piston 3 and lower end is connected to piston bush 2；The outer wall of piston bush 2 with it is upper
Compensation adjustment part 201, the 3rd chamber are provided with the internal face of housing 1 formation upper end closed, the 3rd cavity of lower ending opening, the 3rd cavity
The counterbalance spring 302 of connection compensation adjustment part 201 and the 3rd cavity top end is additionally provided with vivo；Described compensation adjustment part 201 is
The internal face of back-up ring, back-up ring and the 3rd cavity is in close contact.
Preferably, the side wall of compensation adjustment part 201, which is provided with annular groove, groove, is provided with sealing ring.Sealing ring makes
The flexible gaskets being made up of elastomeric material.
The operation principle of this pneumatic operated valve is identical with embodiment one, just repeats no more herein.
Embodiment three
Present embodiment discloses a kind of pneumatic operated valve, the building block and connected mode and embodiment of pneumatic operated valve in the present embodiment
Identical in one, its difference is：
In the present embodiment, upper valve body employs the different valve element of structure.
As shown in Figure 7, Figure 8, the valve element in the present embodiment, piston bush 2 is the sleeve that longitudinal cross-section is " mountain " font, piston
Set 2 is slidably connected with upper chamber 101, the inside of piston bush 2 and driving the second cavity of formation of piston 3, provided with reset in the second cavity
Spring 301, the upper end of back-moving spring 301 is connected to the driving epimere of piston 3 and lower end is connected to piston bush 2；The outer pars intramuralis of piston bush 2
It is provided with compensation adjustment part 201, the 4th cavity and is additionally provided with the 4th cavity provided with upper end closed, lower ending opening, the 4th cavity
Connect the counterbalance spring 302 of compensation adjustment part 201 and the 4th cavity top end；Described compensation adjustment part 201 be back-up ring, back-up ring with
The internal face of 4th cavity is in close contact.
Preferably, the side wall of compensation adjustment part 201, which is provided with annular groove, groove, is provided with sealing ring.Sealing ring makes
The flexible gaskets being made up of elastomeric material.
The operation principle of this pneumatic operated valve is identical with embodiment one, just repeats no more herein.
According to above-described embodiment, the present invention just can be realized well.What deserves to be explained is, based on above-mentioned design principle, it is
Same technical problem is solved, some made on architecture basics disclosed in this invention are without substantial change or profit
Color, the technical scheme essence used is still as the present invention, therefore it should also be as within the scope of the present invention.
Claims (12)
1. cavity space can compensate for the upper valve body of regulation, including upper shell (1), the upper chamber (101) that upper shell (1) is communicated with
With upper valve air storing cavity (102), upper valve pneumatic cavity (103) is additionally provided with；Valve element, upper valve air storing cavity (102) are provided with upper chamber (101)
Upper valve gasket (401) provided with upper valve chamber seal (4), positioned at upper valve chamber seal (4) top, to be enclosed on upper valve chamber close
Upper Valve seal (6) on sealing (4), the upper valve spring (5) being placed between upper valve chamber seal (4) and upper Valve seal (6), put
Upper valve block piece (109) in upper Valve seal (6) bottom, upper valve pneumatic cavity (103) is located at the bottom of upper shell (1)；Its feature
It is：
Valve element is made up of piston bush (2) and driving piston (3)；Piston bush (2) be connected with upper shell (1) and piston bush (2) with it is upper
Housing forms the first cavity between (1)；It is stepped piston and including three sections of upper, middle and lower to drive piston (3), drives piston (3)
Epimere is contacted or piston bush (2) contact with upper shell (1) internal face, and stage casing is located in piston bush (2), and hypomere is located at upper chamber
(101) at the connected entrance between upper valve air storing cavity (102)；
Piston bush (2) is provided with back-moving spring (301) and counterbalance spring (302), and back-moving spring (301) one end is connected to piston bush
(2), the other end is connected to the epimere of driving piston (3)；Counterbalance spring (302) one end is connected to piston bush (2), other end connection
To spring mountings (107) or compensation adjustment part (201)；
Upper shell (1) is provided with upper valve air inlet (105) and upper valve air gate (104), upper valve air inlet (105) connection upper valve gas storage
Chamber (102), upper valve air gate (104) connection upper chamber (101) and outside, between upper chamber (101) and upper valve pneumatic cavity (103)
Provided with passage (106).
2. cavity space according to claim 1 can compensate for the upper valve body of regulation, it is characterised in that described piston bush
(2) it is cylindrical sleeve tubular or inverted T-shaped sleeve-shaped, piston bush (2) is slidably connected with upper chamber (101) internal face；Back-moving spring
(301) quantity is at least one.
3. cavity space according to claim 1 can compensate for the upper valve body of regulation, it is characterised in that described piston bush
(2) it is double layer sleeve barrel, the internal layer bottom of piston bush (2) is connected with outer bottom, and groove, piston bush are formed between internal layer and outer layer
(2) it is fixedly connected with upper chamber (101)；Piston bush (2) is internal to form the second cavity with driving piston (3)；Piston bush (2) outer wall
With upper chamber (101) internal face formation upper end closed, the 3rd cavity of lower ending opening, the 3rd cavity is interior to be provided with compensation adjustment part
(201)；Described compensation adjustment part (201) is back-up ring, the internal face close contact of back-up ring and the 3rd cavity.
4. cavity space according to claim 1 can compensate for the upper valve body of regulation, it is characterised in that described piston bush
(2) it is double layer sleeve barrel, the internal layer bottom of piston bush (2) is connected with outer bottom, and groove is formed between internal layer and outer layer；Piston bush
(2) it is fixedly connected with upper chamber (101), piston bush (2) is internal to form the second cavity with driving piston (3)；Piston bush (2) outer wall
Inside, which is provided with upper end closed, the 4th cavity of lower ending opening, the 4th cavity, is provided with compensation adjustment part (201)；Described compensation
Regulating part (201) is back-up ring, the internal face close contact of back-up ring and the 4th cavity.
5. cavity space according to claim 1 can compensate for the upper valve body of regulation, it is characterised in that described upper chamber
(101) it is internal interior provided with driving piston block piece (108) provided with driving piston block piece (108), or piston bush (2).
6. cavity space according to claim 1 can compensate for the upper valve body of regulation, it is characterised in that described upper valve chamber
Seal (4) is the sleeve with air gap washer, air gap of the air gap washer covering driving piston (3) between lower end and connected entrance.
7. cavity space according to claim 1 can compensate for the upper valve body of regulation, it is characterised in that described upper valve spring
(5) be volute spring, one end of upper valve spring (5) slot contacted with upper valve chamber seal (4) and wide-mouth one end and upper valve
Packing ring (6) is contacted.
8. cavity space any one of a kind of use claim 1-7 can compensate for the pneumatic operated valve of the upper valve body of regulation, it is special
Levy and be, described lower valve body includes lower house (7), lower valve pneumatic cavity (702) and lower valve gas storage that lower house (7) is communicated with
Chamber (703)；Coupled piston (8) is provided with lower valve pneumatic cavity (702), the upper end of coupled piston (8) is close provided with connection upper valve chamber
The upper connector (801) of sealing (4), the lower end of coupled piston (8) is provided with piston head (802), and piston head (802) is located at lower valve gas
At the connected entrance of dynamic chamber (702) and lower valve air storing cavity (703)；Coupled piston (8), upper connector (801), piston head (802) are passed through
It is logical；
Lower valve air storing cavity (703) is provided with lower valve chamber seal (9), and the seal is located at lower valve pneumatic cavity (702) and lower valve
The connected entrance of air storing cavity (703), lower valve air storing cavity (703) is additionally provided with the lower valve gasket positioned at lower valve chamber seal (9) top
(901) the lower Valve seal (11) on lower valve chamber seal (9), is enclosed on, lower valve chamber seal (9) and lower Valve seal is placed in
(11) lower valve spring (10) between, the lower valve plug (12) for being placed in lower Valve seal (11) bottom, are connected down with lower valve plug (12)
Valve block piece (704)；
Lower house (7) is provided with lower valve air gate (700) and lower valve air inlet (701), and lower valve air gate (700) connection lower valve is pneumatic
Chamber (702), lower valve air inlet (701) connection lower valve air storing cavity (703).
9. pneumatic operated valve according to claim 8, it is characterised in that described lower valve chamber seal (9) is with air gap
The sleeve of packing ring, air gap of the air gap washer covering piston head (802) between connected entrance.
10. pneumatic operated valve according to claim 8, it is characterised in that described lower valve spring (10) is volute spring, lower valve
One end of the slot of spring (10) is contacted with lower valve chamber seal (9) and one end of wide-mouth is contacted with lower Valve seal (11).
11. pneumatic operated valve according to claim 8, it is characterised in that described upper connector (801) insertion upper valve cavity is close
In sealing, upper connector (801) outer wall is provided with sealing ring, and sealing ring is brought into close contact with valve chamber seal internal face.
12. pneumatic operated valve according to claim 8, it is characterised in that the embedded lower valve air storing cavity of described lower valve plug (12)
(703), lower valve plug (12) is provided with inside sealing ring, and lower valve air storing cavity (703) provided with lower valve plug (12) block piece under sideways
Valve plug (12) is fixed；Lower valve plug (12) is provided with the lower connector in insertion lower valve cavity seal, lower connector outer wall
Sealing ring is provided with, and sealing ring is in close contact with lower valve cavity seal internal face；Lower connector is interior with lower valve plug (12)
Portion's insertion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557603.5A CN107255176A (en) | 2017-07-10 | 2017-07-10 | Cavity space can compensate for the upper valve body and the pneumatic operated valve with the upper valve body of regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557603.5A CN107255176A (en) | 2017-07-10 | 2017-07-10 | Cavity space can compensate for the upper valve body and the pneumatic operated valve with the upper valve body of regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107255176A true CN107255176A (en) | 2017-10-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710557603.5A Pending CN107255176A (en) | 2017-07-10 | 2017-07-10 | Cavity space can compensate for the upper valve body and the pneumatic operated valve with the upper valve body of regulation |
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| Country | Link |
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| CN (1) | CN107255176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839679A (en) * | 2017-12-05 | 2018-03-27 | 肖俊港 | A kind of locomotive emergency brake |
| CN111637231A (en) * | 2020-05-26 | 2020-09-08 | 成都肆点零智能科技有限公司 | Valve structure for precisely adding liquid raw materials and feeding method |
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| CN203318400U (en) * | 2013-01-25 | 2013-12-04 | 瑞立集团瑞安汽车零部件有限公司 | Trailer control valve |
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| CN207145676U (en) * | 2017-07-10 | 2018-03-27 | 谢洪川 | Cavity space can compensate for the upper valve body of regulation and the pneumatic operated valve with the upper valve body |
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| EP2060460A2 (en) * | 2007-11-16 | 2009-05-20 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Pressure relieve valve for railway air pressure brakes |
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| CN111637231A (en) * | 2020-05-26 | 2020-09-08 | 成都肆点零智能科技有限公司 | Valve structure for precisely adding liquid raw materials and feeding method |
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