CN105365803B - A kind of six loop protection valves - Google Patents
A kind of six loop protection valves Download PDFInfo
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- CN105365803B CN105365803B CN201510916252.3A CN201510916252A CN105365803B CN 105365803 B CN105365803 B CN 105365803B CN 201510916252 A CN201510916252 A CN 201510916252A CN 105365803 B CN105365803 B CN 105365803B
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- valve
- delivery outlet
- atmospheric pressure
- pressure cavity
- loop protection
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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
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The present invention relates to a kind of six loop protection valves, including upper valve body, middle valve body and lower valve body；Upper valve body is equipped with air inlet, exhaust outlet and pressure regulating part point；Middle valve body is equipped with inner air path currency structure and valve portion；Lower valve body is equipped with delivery outlet and pressure sensor output par, c；Inner air path currency structure is equipped with atmospheric pressure cavity, and piston is equipped in atmospheric pressure cavity, and piston is equipped with spring base, and atmospheric pressure cavity is equipped with hole；Valve portion is equipped with valve port；Pressure sensor output par, c is equipped with pressure sensor.Its is vdiverse in function, and good reliability, service life is long, and real-time is good, good braking effect and independence and safety are good；Its is compact-sized, has the function of loop protection, saves entrucking space, improves life of product, intelligence degree is high, and reliability and safety are good.
Description
Technical field
The invention belongs to vehicle arrangement technical fields, more particularly to a kind of six loop protection valves.
Background technology
In vehicle arrangement, the delivery outlet of drier needs that multi-circuit braking system is arranged more so that a wherein circuit
Failure, still ensures that there is certain safety arrestment air pressure in other circuits., there is function list more in existing multi-circuit braking equipment
One, reliability is poor, and service life is shorter, and real-time is poor, and braking effect is poor and independence and the poor problem of safety.
Patent No. " ZL200410087954.7 ", Authorization Notice No. are " CN1611403 ", entitled " four loop protections
The Chinese invention patent of valve " discloses a kind of four-loop protection valve, and valve body is made monolithic entity construction, can cut down part
Number, and high intensity can be maintained.There is four-loop protection valve valve body, valve body to be formed by monolithic entity, which is
In bending section in a manner of forming the first main part and the second main part that extend respectively along the first axis direction and the second axis direction
Locate integrally bending shape, for be arranged first check-valve portion and second check-valve portion check-valves opening be formed in not via
Other component and can be from the position that the outer wall of bending section touches.Although braking function may be implemented in it, it is equally existed
Have a single function, reliability is poor, and service life is shorter, and real-time is poor, braking effect is poor and independence and safety it is poor
The problem of.
Patent No. " ZL201520330415.5 ", Authorization Notice No. are " CN204750147U ", entitled " more times a kind of
The Chinese invention patent of road protection valve " discloses a kind of multiloop protection valve, including valve body, interior first valve respectively of the valve body
Body flow-path tube, the second valve flowing channel pipe, the first valve flowing channel pipe are connect with the first connecting tube, second successively from top to bottom
Pipe, third connecting tube are connected, and the 4th is equipped on the first valve flowing channel pipe between first connecting tube and the second connecting tube
Connecting tube is equipped with the 5th connecting tube on the first valve flowing channel pipe between second connecting tube and third connecting tube；It is described
Second valve flowing channel pipe is connected with the 6th connecting tube, the 7th connecting tube, the 8th connecting tube successively from top to bottom, the 6th connection
9th connecting tube is installed, the 7th connecting tube is connect with the 8th on the second valve flowing channel pipe between seven connecting tubes of Guan Yu
The tenth connecting tube is installed on the second valve flowing channel pipe between pipe.Although braking function may be implemented in it, it is equally deposited
Having a single function, reliability is poor, and service life is shorter, and real-time is poor, braking effect is poor and independence and safety compared with
The problem of difference.
On the whole, some existing loop protection valves exist more and have a single function, and reliability is poor, and service life is shorter,
Real-time is poor, and braking effect is poor and independence and the poor problem of safety, for this reason, it may be necessary to a kind of six loop protection valves,
It solves the above problems, keeps its vdiverse in function, good reliability, service life is long, and real-time is good, good braking effect and independence and peace
Good perfection.
Invention content
The purpose of the present invention is to provide a kind of six loop protection valves, solve to have a single function, reliability is poor, service life
Shorter, real-time is poor, and braking effect is poor and independence and the poor problem of safety, keeps its vdiverse in function, good reliability,
Service life is long, and real-time is good, good braking effect and independence and safety are good.
To achieve the above object, the present invention provides a kind of six loop protection valves, including upper valve body, middle valve body and lower valve body；
Upper valve body is equipped with air inlet, exhaust outlet and pressure regulating part point；Middle valve body is equipped with inner air path currency structure and valve portion；Under
Valve body is equipped with delivery outlet and pressure sensor output par, c；Inner air path currency structure is equipped with atmospheric pressure cavity, is equipped with and lives in atmospheric pressure cavity
Plug, piston are equipped with spring base, and atmospheric pressure cavity is equipped with hole；Valve portion is equipped with valve port；Pressure sensor output par, c is equipped with pressure
Force snesor.
In above scheme preferably, upper valve body, middle valve body and lower valve body are set as symmetrical from left to right.
It may also be preferred that delivery outlet is connected with the output unit of pressure sensor.
It may also be preferred that the pressure regulating part of upper valve body is divided to including two compression limiters.
It may also be preferred that compression limiter is separately positioned on the left and right side of upper valve body.
It may also be preferred that the top middle position in middle valve body is arranged in air inlet.
It may also be preferred that air inlet is connected with the compression limiter in the left side of upper valve body.
The valve portion of valve body is equipped with check valve in it may also be preferred that.
It may also be preferred that delivery outlet is connected with the compression limiter on right side.
It may also be preferred that delivery outlet include the first delivery outlet, the second delivery outlet, third delivery outlet, the 4th delivery outlet,
5th delivery outlet, the 6th delivery outlet, the 7th delivery outlet and the 8th delivery outlet.
It may also be preferred that air inlet is connected with the delivery outlet of drier.
It may also be preferred that the first delivery outlet is connected with the first circuit of service brake.
It may also be preferred that the second delivery outlet is connected with service brake second servo loop.
It may also be preferred that third delivery outlet is connected with trailer brake system.
It may also be preferred that the 4th delivery outlet is connected with auxiliary air passage system.
It may also be preferred that the 5th delivery outlet is connected with parking braking system.
It may also be preferred that the 6th delivery outlet is connected with clutch and gear-box steerable system.
It may also be preferred that the 7th delivery outlet and the 8th delivery outlet are connected with pressure switch.
It may also be preferred that atmospheric pressure cavity include the first atmospheric pressure cavity, the second atmospheric pressure cavity, third atmospheric pressure cavity, the 4th atmospheric pressure cavity,
5th atmospheric pressure cavity, the 6th atmospheric pressure cavity, the 7th atmospheric pressure cavity, the 8th atmospheric pressure cavity and the 9th atmospheric pressure cavity.
It may also be preferred that valve port include the first valve port, the second valve port, third valve port, the 4th valve port,
5th valve port, the 6th valve port, the 7th valve port, the 8th valve port, the 9th valve port, the tenth valve port, the 11st valve
Mouth, the 12nd valve port.
It may also be preferred that spring base include the first spring base, second spring seat, third spring base, the 4th spring base,
5th spring base and the 6th spring base.
It may also be preferred that hole includes the first hole, the second hole, third hole and the 4th hole.
It may also be preferred that piston includes first piston, second piston and third piston.
Compared with prior art, the present invention has the following advantages：
Six loop protection valves of the present invention, can solve to have a single function, reliability is poor, and service life is shorter, real-time
Poor, braking effect is poor and independence and the poor problem of safety, and vdiverse in function, good reliability, service life is long, real
When property is good, good braking effect and independence and safety are good；Its is compact-sized, has the function of loop protection, saves entrucking space,
Life of product is improved, intelligence degree is high, and reliability and safety are good.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of six loop protection valve according to the invention；
Fig. 2 is the sectional view along A-A according to six loop protection valves of the embodiment of the present invention shown in Fig. 1；
Fig. 3 is the B-B direction sectional view according to six loop protection valves of the embodiment of the present invention shown in Fig. 1；
Fig. 4 is the C-C according to six loop protection valves of the embodiment of the present invention shown in Fig. 1 to sectional view；
Fig. 5 is the fundamental diagram according to six loop protection valves of the embodiment of the present invention shown in Fig. 1.
In figure, 1 is air inlet, and 21 be the first delivery outlet, and 22 be the second delivery outlet, and 23 be third delivery outlet, and 24 be the 4th
Delivery outlet, 25 be the 5th delivery outlet, and 26 be the 6th delivery outlet, and 27 be the 7th delivery outlet, and 28 be the 8th delivery outlet, and 30 be exhaust
Mouthful, 101 be the first atmospheric pressure cavity, and 102 be the second atmospheric pressure cavity, and 103 be third atmospheric pressure cavity, and 104 be the 4th atmospheric pressure cavity, and 105 be the 5th
Atmospheric pressure cavity, 106 be the 6th atmospheric pressure cavity, and 107 be the 7th atmospheric pressure cavity, and 108 be the 8th atmospheric pressure cavity, and 109 be the 9th atmospheric pressure cavity, and 110 are
Tenth atmospheric pressure cavity, 111 be the 11st atmospheric pressure cavity, and 112 be the 12nd atmospheric pressure cavity, and 113 be the 13rd atmospheric pressure cavity, and 114 be the 14th
Atmospheric pressure cavity, 115 be the 15th atmospheric pressure cavity, 201 be the first valve port, 202 be the second valve port, 203 be third valve port, 204
It is the 5th valve port for the 4th valve port, 205,206 be the 6th valve port, and 207 be the 7th valve port, and 208 be the 8th valve port,
209 be the 9th valve port, and 210 be the tenth valve port, and 211 be the 11st valve port, and 401 be the first spring base, and 402 be the second bullet
Spring abutment, 403 be third spring base, and 404 be the 4th spring base, and 405 be the 5th spring base, and 406 be the 6th spring base, and 601 be the
One hole, 602 be the second hole, and 603 be third hole, and 604 be the 4th hole, and 701 be first piston, and 702 be second piston, and 703 be the
Three pistons.
Specific implementation mode
For a better understanding of the present invention, the present invention is explained in detail with reference to specific embodiment.It is clear that
Different modifications can be carried out to the present invention with remodeling and without departing from the broader spirit of the present invention of appended claims and model
It encloses.Therefore, following embodiment has illustrative without the meaning of limitation.
Embodiment:
A kind of six loop protection valves, as shown in Figures 1 to 5, including upper valve body, middle valve body and lower valve body；Upper valve body is equipped with
Air inlet 1, exhaust outlet 30 and pressure regulating part point；Middle valve body is equipped with inner air path currency structure and valve portion；Lower valve body is set
There are delivery outlet and pressure sensor output par, c；Inner air path currency structure is equipped with atmospheric pressure cavity, and piston, piston are equipped in atmospheric pressure cavity
Equipped with spring base, atmospheric pressure cavity is equipped with hole；Valve portion is equipped with valve port；Pressure sensor output par, c is equipped with pressure sensor
5。
In the above-described embodiments, upper valve body, middle valve body and lower valve body are set as symmetrical from left to right.
In the above-described embodiments, delivery outlet is connected with the output unit of pressure sensor 5.
In the above-described embodiments, the pressure regulating part of upper valve body is divided to including two compression limiters.
In the above-described embodiments, compression limiter is separately positioned on the left and right side of upper valve body.
In the above-described embodiments, the top middle position in middle valve body is arranged in air inlet 1.
In the above-described embodiments, air inlet is connected with the compression limiter in the left side of upper valve body.
In the above-described embodiments, the valve portion of middle valve body is equipped with check valve.
In the above-described embodiments, delivery outlet is connected with the compression limiter on right side.
In the above-described embodiments, delivery outlet includes the first delivery outlet 21, the second delivery outlet 22, third delivery outlet the 23, the 4th
Delivery outlet 24, the 5th delivery outlet 25, the 6th delivery outlet 26, the 7th delivery outlet 27 and the 8th delivery outlet 28.
In the above-described embodiments, air inlet 1 is connected with the delivery outlet of drier.
In the above-described embodiments, the first delivery outlet 21 is connected with the first circuit of service brake.
In the above-described embodiments, the second delivery outlet 22 is connected with service brake second servo loop.
In the above-described embodiments, third delivery outlet 23 is connected with trailer brake system.
In the above-described embodiments, the 4th delivery outlet 24 is connected with auxiliary air passage system.
In the above-described embodiments, the 5th delivery outlet 25 is connected with parking braking system.
In the above-described embodiments, the 6th delivery outlet 26 is connected with clutch and gear-box steerable system.
In the above-described embodiments, the 7th delivery outlet 27 and the 8th delivery outlet 28 are connected with pressure switch.
In the above-described embodiments, atmospheric pressure cavity includes the first atmospheric pressure cavity 101, the second atmospheric pressure cavity 102, third atmospheric pressure cavity 103, the
Four atmospheric pressure cavities 104, the 5th atmospheric pressure cavity 105, the 6th atmospheric pressure cavity 106, the 7th atmospheric pressure cavity 107, the 8th atmospheric pressure cavity 108 and the 9th air pressure
Chamber 109.
In the above-described embodiments, valve port includes the first valve port 201, the second valve port 202, third valve port 203, the
Four valve ports 204, the 5th valve port 205, the 6th valve port 206, the 7th valve port 207, the 8th valve port 208, the 9th valve
The 209, the tenth valve port 210 of mouth, the 9th valve port 209, the tenth valve port 210.
In the above-described embodiments, spring base includes the first spring base 401, second spring seat 401, third spring base 403, the
Four spring bases 404, the 5th spring base 405 and the 6th spring base 406.
In the above-described embodiments, including the first hole 601, the second hole 602, third hole 603 and the 4th hole 604.
In the above-described embodiments, piston includes first piston 701, second piston 702 and third piston 703.
Six loop protection valves of the present invention, are assemblied in drier delivery outlet, multi-circuit braking system are used for, when wherein one
Partial failure, still ensures that there is certain safety arrestment air pressure in other circuits；An air inlet 1 and six masters can be arranged in it
Delivery outlet and two small delivery outlets are wanted, six independent loops are formed；Its piping connection such as following table：
| This six circuit connector | Corresponding connecting object |
| 1 mouthful of air inlet | 21 mouthfuls of drier |
| 21 delivery outlets | The first circuit of service brake |
| 22 delivery outlets | Service brake second servo loop |
| 23 delivery outlets | Trailer brake system |
| 24 delivery outlets | Auxiliary air passage system |
| 25 delivery outlets | Parking braking system |
| 26 delivery outlets | Clutch, gear-box steerable system |
| 27,28 delivery outlet | Pressure switch is blocked when not in use |
Six loop protection valves of the present invention, operation principle are as shown in Figure 5：From 1 air inlet of air inlet, pressure limiting portion is passed through in air pressure
It is divided into two bursts of loop protection parts for separately flowing into carry potential overflow, then an air pressure part separately flows into the first delivery outlet 21 and
Two delivery outlets 22, a part flow to pressure sensor 5 respectively, remaining summarizes by check valve respectively, then by pressure limiting part, divide
Two parts not Liu Ru loop protection part, then separately flow into third delivery outlet 23, the 5th delivery outlet 25, the 7th delivery outlet 27 and
Four delivery outlets 24, the 6th delivery outlet 26, the 8th delivery outlet 28, wherein the 5th delivery outlet 25, the 6th delivery outlet 26 are equipped with check valve；
Pressure protection structure is equipped between other first delivery outlet 21 and third delivery outlet 23, the 7th delivery outlet 27, when the first delivery outlet
When 21 air pressures drop to a certain value, third delivery outlet 23, the 7th delivery outlet air pressure can be discharged to air by exhaust outlet 30.
Six loop protection valves of the present invention, intake process are：Air pressure is flowed into from air inlet 1, respectively from the first delivery outlet
21, the second delivery outlet 22, third delivery outlet 23, the 4th delivery outlet 24, the 5th delivery outlet 25, the output of the 6th delivery outlet the 26, the 7th
Mouth 27 and the 8th delivery outlet 28 export.As shown in Figures 1 to 4, specific work process is as follows：Air pressure flows into first from air inlet 1
Atmospheric pressure cavity 101 enters the second atmospheric pressure cavity 102 after the first valve port 201, and air pressure rises to certain value, and air pressure overcomes spring force
The first spring base 401 is pushed to move upwards, air pressure flows into third atmospheric pressure cavity 103 by the first hole 601, pushes first piston 701
It moves downwardly to the first valve port 201 and is in equilibrium state, complete pressure limiting.
The air pressure of first atmospheric pressure cavity 101 flows into the 4th atmospheric pressure cavity 104 and the 6th atmospheric pressure cavity simultaneously through the first valve port 201
106；The air pressure of 4th atmospheric pressure cavity 104 directly can flow into the 5th atmospheric pressure cavity 105 by the third valve port 203 of check valve, through the
Two delivery outlets 22 export, while by the second empty 602 feed pressure sensors 5, when air pressure reaches certain value, air pressure overcomes spring
It pushes dynamic 6th spring base 406 to move upwards, the second valve port 202 is opened, and the throughput for flowing into the 5th atmospheric pressure cavity 105 increases；
The air pressure of 6th atmospheric pressure cavity 106 directly can flow into the 7th atmospheric pressure cavity 107 by the 5th valve port 205 of check valve, through first
Delivery outlet 21 exports, while by 603 feed pressure sensor 5 of third hole, when air pressure reaches certain value, air pressure overcomes spring force
Second spring seat 402 is pushed to move upwards, the 4th valve port 204 is opened, and the throughput for flowing into the 7th atmospheric pressure cavity 107 increases.
4th atmospheric pressure cavity 104 and the 6th atmospheric pressure cavity 106 pass through the 6th valve port 206 of check valve and the 7th valve port respectively
207 flow into the 7th atmospheric pressure cavity 107 simultaneously.The air pressure of 7th atmospheric pressure cavity 107 enters the 8th atmospheric pressure cavity after the 8th valve port 208
108, air pressure rises to certain value, and air pressure overcomes spring force that third spring base 403 is pushed to move upwards, and air pressure passes through the 4th hole
604 flow into the 9th atmospheric pressure cavity 109, push second piston 702 to move downwardly to the 8th valve port 208 and are in equilibrium state, complete
At pressure limiting.
7th atmospheric pressure cavity 107 flows into the tenth atmospheric pressure cavity 110 and the 12nd atmospheric pressure cavity 112 simultaneously through the 8th valve port 208；The
The air pressure of ten atmospheric pressure cavities 110 reaches certain value, and air pressure overcomes spring force that the 4th spring base 404 is pushed to move upwards, the 8th valve
Mouth 208 is opened, and flows into the 11st atmospheric pressure cavity 111, the 11st atmospheric pressure cavity 111 can be directly from the 4th delivery outlet 24 and the 8th delivery outlet
28 outputs, while by the 9th valve port 209 of check valve, being exported through the 6th delivery outlet 26.12nd atmospheric pressure cavity, 112 air pressure reaches
To certain value, air pressure overcomes spring force that the 5th spring base 405 is pushed to move upwards, and the tenth valve port 210 is opened, and flows into the 13rd
The 113, the 13rd atmospheric pressure cavity 113 of atmospheric pressure cavity can be exported directly from third delivery outlet 23 and the 7th delivery outlet 27, while by unidirectional
11st valve port 211 of valve is exported through the 5th delivery outlet 25.
Six loop protection valves of the present invention, safeguard protection process are：
First, dynamic closes press process：
When air inlet 1 fails, the 4th atmospheric pressure cavity 104, the 5th atmospheric pressure cavity 105 and the 6th atmospheric pressure cavity 106, the 7th atmospheric pressure cavity
107 air pressure reduces, and the second valve port 202 and the 4th valve port 204 are closed under the active force of spring force, the second delivery outlet 22
It is dynamic protection pressure with 21 remaining pressure of the first delivery outlet, the 6th valve port 206 of check valve and the 7th valve port 207 exist
The air pressure of air inlet 1 is closed when beginning to decline, third delivery outlet 23, the 4th delivery outlet 24, the 5th delivery outlet 25, the 6th delivery outlet
26, the atmospheric pressure of the 7th delivery outlet 27 and the 8th delivery outlet 28 remains unchanged.
Secondly, static state closes press process：
When the first delivery outlet 21 fails, the air pressure of the 7th atmospheric pressure cavity 107 reduces, the 6th atmospheric pressure cavity 106, the 4th atmospheric pressure cavity
104 and the 5th the air pressure of atmospheric pressure cavity 105 decrease, the second valve port 202 and the 4th valve port 204 are under spring force
It closes, 22 remaining pressure of the second delivery outlet is static protection pressure of second delivery outlet 22 when the first delivery outlet 21 fails.
Meanwhile the 7th atmospheric pressure cavity 107 be connected with the 14th atmospheric pressure cavity 114, the 13rd atmospheric pressure cavity 113 and 115 phase of the 15th atmospheric pressure cavity
Connection, when the 7th atmospheric pressure cavity 107, the 14th atmospheric pressure cavity 114 air pressure drop as low as certain value when, piston under spring force to
Lower movement, the discharge of 115 through hole of the 15th atmospheric pressure cavity, the air pressure of the 13rd atmospheric pressure cavity 113 fall to zero, 23 He of third delivery outlet
7th delivery outlet 27 fails, and the air pressure of the 12nd atmospheric pressure cavity 112, the tenth atmospheric pressure cavity 110 and the 11st atmospheric pressure cavity 111 is under
Drop, the 8th valve port 208 and the tenth valve port 210 are closed under spring force, and 24 remaining pressure of the 4th delivery outlet is
Static protection pressure of 4th delivery outlet 24 when the first delivery outlet 21 fails.5th delivery outlet 25 and the 6th delivery outlet 26 have list
It is protected to the 11st valve port 211 of valve and the 9th valve port 209, keeps air pressure constant.
When the second delivery outlet 22 fails, the air pressure of the 5th atmospheric pressure cavity 105 reduces, the 4th atmospheric pressure cavity 104, the 6th atmospheric pressure cavity
106 and the 7th the air pressure of atmospheric pressure cavity 107 decrease, the second valve port 202 and the 4th valve port 204 are under spring force
It closes, 21 remaining pressure of the first delivery outlet is static protection pressure of first delivery outlet 21 when the second delivery outlet 22 fails.
The 6th valve port 206, the 7th valve port 207 of check valve are closed when the 5th atmospheric pressure cavity 105 is begun to decline, third delivery outlet
23, the air pressure pressure of the 4th delivery outlet 24, the 5th delivery outlet 25, the 6th delivery outlet 26, the 7th delivery outlet 27 and the 8th delivery outlet 28
Power remains unchanged.
When third delivery outlet 23 fails, the air pressure of the 13rd atmospheric pressure cavity 113 reduces, the 12nd atmospheric pressure cavity 112, the 6th gas
Press chamber 106, the 8th atmospheric pressure cavity 108, the tenth atmospheric pressure cavity 110, the 11st atmospheric pressure cavity 111, third atmospheric pressure cavity 103 and the 5th atmospheric pressure cavity
105 air pressure declines therewith, the tenth valve port 210, the 11st valve port 211, the second valve port 202 and the 4th valve port 204
It closes under spring force, the first delivery outlet 21, the second delivery outlet 22 and 24 remaining pressure of the 4th delivery outlet are third
Static protection pressure when delivery outlet 23 fails.5th delivery outlet 25 and the 6th delivery outlet 26 have the 11st valve port of check valve
211 and the 9th valve port 209 protect, keep air pressure it is constant.
When the 4th delivery outlet 24 fails, the air pressure of the 11st atmospheric pressure cavity 111 reduces, the tenth atmospheric pressure cavity 110, the 12nd gas
Press chamber 112, the 13rd atmospheric pressure cavity 113, the 6th atmospheric pressure cavity 106, the 7th atmospheric pressure cavity 107, third atmospheric pressure cavity 103 and the 5th atmospheric pressure cavity
105 air pressure declines therewith, and the tenth valve port 210, the 8th valve port 208, the second valve port 202 and the 4th valve port 204 exist
It is closed under the action of spring force, the first delivery outlet 21, the second delivery outlet 22 and 23 remaining pressure of third delivery outlet are the 4th defeated
The static protection pressure of outlet 24.5th delivery outlet 25 and the 6th delivery outlet 26 have the 11st valve port 211 and of check valve
Nine valve ports 209 are protected, and keep air pressure constant.
Six loop protection valves of the present invention, there are six independent circuits for tool, there is multiple functions, can realize vehicle diversification
Function and safety and reliability.Its feature is as follows：（1）Pressure-limiting function is set there are two pressure limiting valve, while being service brake and stayed
Vehicle braking provides different air pressures respectively.（2）Relief function is equipped with overflow valve, is not required to open circuit valve be driving
Braking provides air pressure, improves service using life.（3）Pressure monitoring function is equipped with pressure sensor, can monitor driving in real time
The pressure of brake circuit.（4）Back flow protection function, being equipped with pressure protection structure can realize when service brake partial failure
Automatic parking brake.（5）Unidirectional protection function is equipped with multiple check valves, can improve the independence and security performance in circuit.
Claims (21)
1. a kind of six loop protection valves, including upper valve body, middle valve body and lower valve body；It is characterized in that：Upper valve body is equipped with air inlet
(1), exhaust outlet (30) and pressure regulating part point；Middle valve body is equipped with inner air path currency structure and valve portion；Lower valve body is equipped with
Delivery outlet and pressure sensor output par, c；Inner air path currency structure is equipped with atmospheric pressure cavity, is equipped with piston in atmospheric pressure cavity, piston is set
There are spring base, atmospheric pressure cavity to be equipped with hole；Valve portion is equipped with valve port；Pressure sensor output par, c is equipped with pressure sensor
(5)；The pressure regulating part of upper valve body is divided to including two compression limiters, and compression limiter is separately positioned on the left side and the right side of upper valve body
Side, pressure limiting process are：Air pressure flows into the first atmospheric pressure cavity (101) from air inlet (1), and the is entered after the first valve port (201)
Two atmospheric pressure cavities (102), air pressure rise to certain value, and air pressure overcomes spring force that the first spring base (401) is pushed to move upwards, air pressure
Third atmospheric pressure cavity (103) is flowed by the first hole (601), first piston (701) is pushed to move downwardly to the first valve port (201)
In equilibrium state, pressure limiting is completed.
2. six loop protection valve as described in claim 1, it is characterised in that：Upper valve body, middle valve body and lower valve body are set as from a left side
It is symmetrical to the right side.
3. six loop protection valve as claimed in claim 2, it is characterised in that：The output list of delivery outlet and pressure sensor (5)
Member is connected.
4. six loop protection valve as claimed in claim 3, it is characterised in that：Air inlet (1) is arranged in the top of middle valve body
Between at position.
5. six loop protection valve as claimed in claim 4, it is characterised in that：The compression limiter in the left side of air inlet and upper valve body
It is connected.
6. six loop protection valve as claimed in claim 5, it is characterised in that：The valve portion of middle valve body is equipped with check valve.
7. six loop protection valve as claimed in claim 6, it is characterised in that：Delivery outlet is connected with the compression limiter on right side.
8. six loop protection valves as described in any one of claim 1-7, it is characterised in that：Delivery outlet includes the first delivery outlet
(21), the second delivery outlet (22), third delivery outlet (23), the 4th delivery outlet (24), the 5th delivery outlet (25), the 6th delivery outlet
(26), the 7th delivery outlet (27) and the 8th delivery outlet (28).
9. six loop protection valves as described in any one of claim 1-7, it is characterised in that：Air inlet (1) and drier
Delivery outlet is connected.
10. six loop protection valve as claimed in claim 8, it is characterised in that：First delivery outlet (21) and service brake first
Circuit is connected.
11. six loop protection valve as claimed in claim 10, it is characterised in that：Second delivery outlet (22) and service brake second
Circuit is connected.
12. six loop protection valve as claimed in claim 11, it is characterised in that：Third delivery outlet (23) and trailer brake system
It is connected.
13. six loop protection valve as claimed in claim 12, it is characterised in that：4th delivery outlet (24) and auxiliary air passage system
It is connected.
14. six loop protection valve as claimed in claim 13, it is characterised in that：5th delivery outlet (25) and parking braking system
It is connected.
15. six loop protection valve as claimed in claim 14, it is characterised in that：6th delivery outlet (26) and clutch and gear
Case steerable system is connected.
16. six loop protection valve as claimed in claim 15, it is characterised in that：7th delivery outlet (27) and the 8th delivery outlet
(28) it is connected with pressure switch.
17. six loop protection valve as claimed in claim 16, it is characterised in that：Atmospheric pressure cavity includes the first atmospheric pressure cavity (101), the
Two atmospheric pressure cavities (102), third atmospheric pressure cavity (103), the 4th atmospheric pressure cavity (104), the 5th atmospheric pressure cavity (105), the 6th atmospheric pressure cavity
(106), the 7th atmospheric pressure cavity (107), the 8th atmospheric pressure cavity (108) and the 9th atmospheric pressure cavity (109).
18. six loop protection valve as claimed in claim 17, it is characterised in that：Valve port includes the first valve port (201), the
Two valve ports (202), third valve port (203), the 4th valve port (204), the 5th valve port (205), the 6th valve port
(206), the 7th valve port (207), the 8th valve port (208), the 9th valve port (209), the tenth valve port (210), the 11st
Valve port (211), the 12nd valve port (212).
19. six loop protection valve as claimed in claim 18, it is characterised in that：Spring base includes the first spring base (401), the
Two spring bases (401), third spring base (403), the 4th spring base (404), the 5th spring base (405) and the 6th spring base
(406)。
20. six loop protection valve as claimed in claim 19, it is characterised in that：Hole includes the first hole (601), the second hole
(602), third hole (603) and the 4th hole (604).
21. six loop protection valve as claimed in claim 20, it is characterised in that：Piston includes first piston (701), the second work
Fill in (702) and third piston (703).
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| CN201510916252.3A CN105365803B (en) | 2015-12-10 | 2015-12-10 | A kind of six loop protection valves |
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| CN201510916252.3A CN105365803B (en) | 2015-12-10 | 2015-12-10 | A kind of six loop protection valves |
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| CN105365803A CN105365803A (en) | 2016-03-02 |
| CN105365803B true CN105365803B (en) | 2018-10-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102546036B1 (en) | 2016-03-28 | 2023-06-22 | 에이치엘만도 주식회사 | Valve block of electronic control brake system |
| CN106178853A (en) * | 2016-08-31 | 2016-12-07 | 瑞立集团瑞安汽车零部件有限公司 | A kind of automatically controlled air treatment system |
| CN107776564A (en) * | 2017-11-13 | 2018-03-09 | 浙江德翰制动系统有限公司 | Automobile integral air processing system |
| CN108437964B (en) * | 2018-06-12 | 2024-01-16 | 浙江万安科技股份有限公司 | Air treatment unit assembly for vehicle and four-loop protection valve thereof |
| CN113715792A (en) * | 2021-08-27 | 2021-11-30 | 东风汽车股份有限公司 | Four-loop protection valve with partial loop having pressure limiting function |
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