CN209208745U - A kind of commercial vehicle controlled pneumatic braking valve for vehicle - Google Patents
A kind of commercial vehicle controlled pneumatic braking valve for vehicle Download PDFInfo
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- CN209208745U CN209208745U CN201821974493.9U CN201821974493U CN209208745U CN 209208745 U CN209208745 U CN 209208745U CN 201821974493 U CN201821974493 U CN 201821974493U CN 209208745 U CN209208745 U CN 209208745U
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- iron core
- dynamic iron
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- main valve
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Abstract
The utility model discloses a kind of commercial vehicle controlled pneumatic braking valve for vehicle, belong to commercial vehicle braking technology field, the main valve of brake valve is composed of upper valve body and lower valve body, the air inlet (A) being connected with air accumulator, the delivery outlet (B) being connected with brake chamber and the exhaust outlet (C) communicated with atmosphere are offered on main valve, exhaust passage has been opened up above main valve static iron core to communicate with exhaust outlet (C), and parking is carried out by the i.e. controllable vehicle of a main valve and releases parking；The brake valve further includes safety valve, for limiting to main valve plug, can ensure that control valve maintains current state in the power-off state；The brake valve further includes safety pin, for releasing braking in the power-off state, can also carry out park brake operation manually.Have the advantages that structure is simple, integrated level is high, safe and reliable, long service life.
Description
Technical field
The utility model relates to commercial vehicle braking technology fields, more particularly to a kind of commercial vehicle controlled pneumatic parking braking
Valve.
Background technique
With the development of automotive electronic technology, application of the electronic parking on passenger car has reached its maturity, still, relative to
Commonly used on passenger car, application of the electronic parking in commercial vehicle is still in infancy, and is especially applied to air pressure system
The electronic parking of dynamic system.Electronic brake system has easy to operate, manipulation labour-saving relative to traditional parking system
Advantage, if cooperating suitable control technology, additionally it is possible to realize that traditional manual brakes be cannot achieve hill start auxiliary, emergency is stayed
Vehicle, anti-forgetting parking and limitation protection and the functions such as antitheft, are with a wide range of applications.
For the electronic parking technology of Pneumatic braking system, what is generallyd use at present is pneumatically controlled applied by industrial system
Valve processed, although corresponding function can be realized, reliability and applicability are poor, and arrange complexity, such as Chinese invention patent
Three 2/2-way solenoid valves are used in application (application number: 201710118935.3, publication date: on 06 13rd, 2017),
Control difficulty and element cost are increased in this way, while reducing the reliability of system；Chinese invention patent application (application
Number: 201710450919.4, publication date: on 09 29th, 2017) by three 2/2-way solenoid valves and a relay valve collection
At improving control ability, but the manufacture difficulty of valve body increases, reliability reduces.By to existing air pressure electronic brake
The analysis of valve can be found that presently, there are following problems:
(1) multiple solenoid valves are used, valve body structure is complicated, and safety and reliability is lower, is unable to satisfy vehicle high safety
Demand；
(2) after solenoid valve powers off, general solenoid valve is unable to maintain that current state, to will appear car slipping or suddenly system
The problems such as dynamic, there are security risks；
(3) when solenoid valve failure or when leaking, it is unable to maintain that its stopping power, therefore do not have fault-safety principle
Function, reduce the reliability of system.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides that a kind of structure is simple, integrated level is high, safety
Reliable commercial vehicle controlled pneumatic braking valve for vehicle.
The technical scheme adopted by the utility model is a kind of commercial vehicle controlled pneumatic braking valve for vehicle, brake valve main valve
Be composed of upper valve body 6 and lower valve body 15, be equipped on upper valve body 6 first static iron core 3, first coil 4, locking knob 1 with
And second fixinig plate 21, the first static iron core 3 and upper valve body 6 are attached by the second fixinig plate 21, locking knob 1 and first is quiet
Iron core 3 connects and first coil 4 is fixed on upper valve body 6；Main valve plug 16, the second dynamic iron core 17 are installed in lower valve body 15
Under the action of second spring 18 with 16 upper end face contact of main valve plug；Offered on main valve the air inlet A being connected with air accumulator, with
Exhaust outlet C brake chamber connected delivery outlet B and communicated with atmosphere has opened up exhaust passage and row above the first static iron core 3
Port C is communicated.The brake valve further includes safety valve, and safety valve is mounted on main valve side, including the second coil 8, the first dynamic iron
The end of incoming cables of core 13, first coil 4 and the second coil 8 is all introduced connecting terminal 5 and is attached using three line waterproof connectors, the
One dynamic iron core 13 is stuck on the limited step of the second dynamic iron core 17, and the position of the second dynamic iron core 17 is defined and is kept；?
Safety pin 14 is additionally provided in lower valve body 15, safety pin tip axle portion is provided with 1/4 groove, and safety pin 14, which is pressed, rotates clockwise 90
When spending, unslotted part first jacks up the first dynamic iron core 13, releases its limit to the second dynamic iron core 17；Continue pressing safety
It sells to its extreme sport position, and is rotated by 90 ° counterclockwise, the second dynamic iron core 17 is jacked up and keeps locking by safety pin.
Compared with prior art, the utility model has the beneficial effects that
1. structure is simple: opened up exhaust passage above main valve static iron core, by the i.e. controllable vehicle of a main valve into
Row parking and releasing parking, the structure of multiple solenoid valves, valve provided by the utility model are used relative to traditional electronic parking
Structure is simpler, highly reliable；
2. highly-safe: being specifically designed safety valve in main valve plug side, can have been limited to main valve plug, can ensure control
Valve processed maintains current state, guarantee driving safety in the power-off state；Meanwhile also accidentally energization causes spool malfunction to avoidable main valve
Make, excludes security risk；
3. having manual-operated emergent operating mechanism: safety pin button is devised on valve body, by operating the button, Ke Yi
Braking is released under off-position, can also carry out park brake operation manually, it in addition can also be in the case where system power on to gas
It is debugged in dynamic circuit；
4. durability is good: control valve provided by the utility model only need to carry out brief energization in switch operating state,
Remaining moment remains powered off state, therefore is able to carry out energy conservation, and extends the working life of solenoid valve.
Detailed description of the invention
Fig. 1 is the brake valve outline structural diagram of the utility model；
Fig. 2 is the brake valve schematic diagram of internal structure of the utility model；
Fig. 3 is safety pin installation diagrammatic cross-section；
Valve body piece status diagram when Fig. 4 is parking；
Fig. 5 is valve body piece status diagram when releasing parking (driving)；
Fig. 6 is the structural schematic diagram of safety pin；
In figure, 1 locking knob, 2 first sealing rings, 3 first static iron cores, 4 first coils, 5 connecting terminals, 6 upper valve bodies, 7
First fixinig plate, 8 second coils, 9 locking nuts, 10 second static iron cores, 11 first springs, 12 second sealing rings, 13 first is dynamic
Iron core, 14 safety pins, 15 lower valve bodies, 16 main valve plugs, 17 second dynamic iron cores, 18 second springs, 19 third sealing rings, 20 the 4th is close
Seal, 21 second fixinig plates, 22 bayonet locks, A- air inlet, B- delivery outlet, C- exhaust outlet.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
The commercial vehicle controlled pneumatic braking valve for vehicle as shown in Fig. 1,2, offer on main valve air inlet A, delivery outlet B and
Exhaust outlet C wherein connects air accumulator for A mouthfuls, and B mouthfuls connect brake chamber, and C mouthfuls communicate with atmosphere.Main valve is by upper valve body 6 and 15 groups of lower valve body
It closes, the first static iron core 3, first coil 4, locking knob 1 and the second fixinig plate 21 is installed on upper valve body 6, wherein the
One static iron core 3 and upper valve body 6 are attached by the second fixinig plate 21, locking knob 1 and the connection of the first static iron core 3 and by first
Coil 4 is fixed on upper valve body 6；Main valve plug 16, effect of second dynamic iron core 17 in second spring 18 are installed in lower valve body 15
Under, with 16 upper end face contact of main valve plug；Safety valve is mounted on main valve side, by the first fixinig plate 7, the second coil 8, locking nut
9, the second static iron core 10, the first spring 11, the second sealing ring 12 and the first dynamic iron core 13 composition, wherein the first dynamic iron core 13 is stuck in
On the limited step of second dynamic iron core 17, the position of the second dynamic iron core 17 is defined and is kept；First coil 4 and the second line
The end of incoming cables of circle 8 is all introduced connecting terminal 5 and is attached using three line waterproof connectors；It is additionally provided in main valve lower valve body 15
Safety pin 14, as shown in fig. 6, safety pin tip axle portion is provided with 1/4 groove, when pressing safety pin 14 and being rotated by 90 ° counterclockwise, peace
Full pin 14 can successively open the first dynamic iron core 13 and the second dynamic iron core 17, and the second dynamic iron core 17 is locked in upper dead center position, make
Inlet open, valve are in air-suction state；After being clockwise rotated by 90 ° safety pin 14, safety pin 14 is under spring force
It resets, 17 downlink of the second dynamic iron core closes main valve plug 16, and the first dynamic iron core 13 resets under spring force, locks the second dynamic iron
Core 17, valve work at this time is in exhaust condition.
When initial, commercial vehicle controlled pneumatic braking valve for vehicle is in state shown in Fig. 2, and air inlet A is by the second dynamic iron core 17
It closes under spring force, i.e., air inlet is in normally off；Delivery outlet B and exhaust outlet C is through in the first static iron core 3
Exhaust outlet is connected, and is in normally open；First dynamic iron core 13 of safety lock under spring force, is stuck in the second dynamic iron core
On 17 limited step, the movement of the second dynamic iron core 17 is limited, the malfunction of the second dynamic iron core 17 is avoided.
1) braking is released when the controller of controlled pneumatic park control valve receives parking instruction, on the second coil 8
Electricity, will limit the first dynamic iron core 13 lift, then powered on to first coil 4, under the action of electromagnetic force, the second dynamic iron core 17 to
On lift, then the second coil 8 is powered off, under spring force, 13 return of the first dynamic iron core is simultaneously stuck in the second dynamic iron core
17 lower section at this time powers off first coil 4, and each part will remain in position shown in Fig. 3.Air inlet A and defeated under the state
B connection is exported, exhaust outlet C keeps closing, and compressed air enters brake chamber for parking spring-compressed through the channel AB, and braking is solved
It removes.Since inlet channel is in normally open, even if disconnection fault occurs for system, brake valve will also maintain current state, avoid
It is endangered caused by power-off braking suddenly.In addition, even if C mouthfuls cause to be leaked due to being caught in impurity, since A mouthfuls in holding
Continue for gaseity, it will not be according to being decreased obviously at brake pressure.
2) parking braking is logical to the second coil of safety valve 8 first when vehicle need to enter on-position from driving states
Electricity, under electromagnetic force, the first dynamic iron core 13 is moved to right, and cancels the limit to the second dynamic iron core of main valve 17, in spring-force driven dual
Lower second dynamic iron core 17 resets, and closes air inlet A, then powers off the second coil 8, and the first dynamic iron core 13 is resetted and limited again
The movement of second dynamic iron core 17；At this point, exhaust outlet C is opened, the pressure in brake chamber through C mouthful discharges, parking spring reset into
Row braking.
The commercial vehicle controlled pneumatic braking valve for vehicle that the utility model is proposed, can not be grasped for solenoid valve after power-off
The problem of making especially is provided with manual operational unit --- safety pin 14, can successively drive the first dynamic iron core using the button
13 and second dynamic iron core 17, and then braking and brake release are carried out, it is as follows in detail:
3) emergency releases parking operation when disconnection fault occurs for parking braking system, can be carried out at this time by manual operation
Parking.Safety pin 14 is pressed first, since safety pin differential trench open structure designs, so that push-turn key rotates clockwise 90 degree
When, knob first jacks up the first dynamic iron core 13, and cancels limit of first dynamic iron core 13 to the second dynamic iron core 17, works as safety
After pin 14 is pressed on earth, safety pin 14 is rotated by 90 ° counterclockwise, the second dynamic iron core 17 is jacked up and locked by safety pin 14 at this time
Determine in the position, two dynamic iron cores can be stuck in normally open using safety pin 14 in this way, then air inlet is opened and arranges
Port is closed, in this way can be so that parking braking releases, and realization releases braking manually, facilitates the movement and maintenance of vehicle.
4) emergency parking is when disconnection fault occurs for parking braking system, since solenoid valve can not be acted by powering on, and
Emergency releasing parking is similar, and current second dynamic iron core 17 is in the open state and the first dynamic iron core 13 is then in close state, this
When only need flicking safety pin 14 to jack up the first dynamic iron core 13 to the right, cancel limit of first dynamic iron core 13 to the second dynamic iron core 17
Effect, the second dynamic iron core 17 resets under spring force, closes air inlet and opens exhaust outlet, i.e. when hearing exhaust sound
Knob can be unclamped, the first dynamic iron core 13 return under spring force is stuck on the limited step of the second dynamic iron core 17, realizes
Manual-operated emergent parking.
Claims (4)
1. a kind of commercial vehicle controlled pneumatic braking valve for vehicle, it is characterised in that: the main valve of the brake valve by upper valve body (6) and under
Valve body (15) is composed, and the first static iron core (3), first coil (4), locking knob (1) and are equipped on upper valve body (6)
Two fixinig plates (21), the first static iron core (3) and upper valve body (6) are attached by the second fixinig plate (21), locking knob (1) and
First static iron core (3) connects and first coil (4) is fixed on upper valve body (6)；Main valve plug is installed in lower valve body (15)
(16), the second dynamic iron core (17) under the action of second spring (18) with main valve plug (16) upper end face contact；It is offered on main valve
The air inlet (A) being connected with air accumulator, the delivery outlet (B) being connected with brake chamber and the exhaust outlet (C) communicated with atmosphere, first
Exhaust passage is opened up above static iron core (3) to communicate with exhaust outlet (C).
2. commercial vehicle controlled pneumatic braking valve for vehicle according to claim 1, it is characterised in that: the brake valve further includes
Safety valve, safety valve are mounted on main valve side, including the second coil (8), the first dynamic iron core (13), the first dynamic iron core (13) are stuck in
On the limited step of second dynamic iron core (17), the position of the second dynamic iron core (17) is defined and is kept.
3. commercial vehicle controlled pneumatic braking valve for vehicle according to claim 2, it is characterised in that: on lower valve body (15) also
It is provided with safety pin (14), safety pin tip axle portion is provided with 1/4 groove, and safety pin (14) is pressed when rotating clockwise 90 degree, not
Slotted section first jacks up the first dynamic iron core (13), releases its limit to the second dynamic iron core (17)；Continue to press safety pin
(14) it to its extreme sport position, and is rotated by 90 ° counterclockwise, the second dynamic iron core (17) are jacked up and protected by safety pin (14)
Hold locking.
4. commercial vehicle controlled pneumatic braking valve for vehicle according to claim 2 or 3, it is characterised in that: first coil (4) and
The end of incoming cables of second coil (8) is all introduced connecting terminal (5) and is attached using three line waterproof connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821974493.9U CN209208745U (en) | 2018-11-28 | 2018-11-28 | A kind of commercial vehicle controlled pneumatic braking valve for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821974493.9U CN209208745U (en) | 2018-11-28 | 2018-11-28 | A kind of commercial vehicle controlled pneumatic braking valve for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209208745U true CN209208745U (en) | 2019-08-06 |
Family
ID=67461641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821974493.9U Active CN209208745U (en) | 2018-11-28 | 2018-11-28 | A kind of commercial vehicle controlled pneumatic braking valve for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209208745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11801816B2 (en) | 2021-12-15 | 2023-10-31 | Automotive Research & Testing Center | Air brake electric control valve |
| US11999328B2 (en) | 2021-12-15 | 2024-06-04 | Automotive Research & Testing Center | Air parking brake electric control valve |
-
2018
- 2018-11-28 CN CN201821974493.9U patent/CN209208745U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11801816B2 (en) | 2021-12-15 | 2023-10-31 | Automotive Research & Testing Center | Air brake electric control valve |
| US11999328B2 (en) | 2021-12-15 | 2024-06-04 | Automotive Research & Testing Center | Air parking brake electric control valve |
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