CN106274877B - Trailer brake valve with fourth gear output pressure - Google Patents
Trailer brake valve with fourth gear output pressure Download PDFInfo
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- CN106274877B CN106274877B CN201610766326.4A CN201610766326A CN106274877B CN 106274877 B CN106274877 B CN 106274877B CN 201610766326 A CN201610766326 A CN 201610766326A CN 106274877 B CN106274877 B CN 106274877B
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- chamber
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- outlet chamber
- control
- switching valve
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Classifications
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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
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
Abstract
The present invention provides a kind of trailer brake valve with fourth gear output pressure, including upper cover, upper body, lower body, lower cover, gear selection component, relay piston, manipulation chamber switching valve, outlet chamber switching valve, control piston component, manipulation interface, intake interface and outlet interface.It includes gear knob, shaft and Option stage that gear, which selects component,.Shaft is set to upper cover, and is connected with gear knob；Option stage is set to shaft.Relay piston is set between upper body and lower body, forms main manipulation chamber and secondary manipulation chamber with upper body, main outlet chamber and secondary outlet chamber are formed with lower body.Chamber switching valve connection shaft and Option stage are manipulated, chamber switching valve unicom is manipulated or the main manipulation chamber of disconnection manipulates chamber with secondary.Outlet chamber switching valve connects shaft.It controls piston component and connects outlet chamber switching valve, control piston component is arranged between main outlet chamber and secondary outlet chamber, and outlet chamber switching valve drives control piston component movement, unicom or the main outlet chamber of disconnection and secondary outlet chamber.
Description
The application is the applying date to be August in 2014 28, application No. is 201410429876.8, entitled " fourth gear
The divisional application of output pressure trailer brake valve ".
Technical field
The present invention relates to vehicle brake control fields, and more particularly to a kind of trailer brake with fourth gear output pressure
Valve.
Background technology
Trailer, semitrailer trailer brake valve be secondary valve in truck combination brake system, for controlling trailer and half
Trailer rear axle brake valve.Because it is farther out from headstock, brake line is longer, cannot directly be braked by the brake valve on main vehicle, and
It is to control the brake of trailer and semitrailer rear axle using the brake pressure of main vehicle as the manipulation air pressure of trailer brake valve.It hangs at present
Emergency relay valve that vehicle and semitrailer use, synchronous emergency relay valve, other three-axle relay valves etc., exist and brake when overloaded not
The problems such as spirit, traction grinds tire when unloaded.
Although gas braking ABS system is mostly used in existing vehicle, however, since trailer and semitrailer brake valve are gas
The medium of pressure type brake valve, braking system is compressed air.Compared with brake fluid system, since compressed air is that one kind can
The medium of compression, and liquid is incompressible.Therefore, in trailer, semitrailer brake valve, gas brakes ABS system control not
Sensitive, the effect is unsatisfactory for anti-lock.Especially slippery when wet and frost road surface of snowing, occur rear lock, defective steering stabilizer etc.
Dangerous problem.
And it is further, in existing trailer or semitrailer, Quick brake, but its are realized using synchronous emergency brake
The speed for releasing brake is slower, and the speed for releasing brake is considerably slower than the releasing speed of front part of vehicle wheel, causes trailing wheel stagnant
The problems such as vehicle restores traveling slowly, brake shoe serious wear.
Invention content
The present invention for overcome the deficiencies in the prior art, provide one kind can be rained according to vehicle heavy duty, underloading, unloaded, under
Road conditions condition and driver are avenged to the handling of vehicle self, select suitable brake output pressure gear there is fourth gear to export gas
The trailer brake valve of pressure.
To achieve the goals above, the present invention provide a kind of trailer brake valve with fourth gear output pressure include upper cover,
Upper body, lower body, lower cover, gear selection component, relay piston, manipulate chamber switching valve, outlet chamber switching valve, control piston component,
Manipulate interface, intake interface and outlet interface.Gear selection component includes gear knob, shaft and Option stage, gear rotation
Button is set to upper cover, and there are four the selection gears of different location for gear knob tool.Shaft is set to upper cover, and with gear knob phase
Connection；Option stage is set to shaft, and Option stage includes that control manipulates the elliptic cam of chamber switching valve, control outlet chamber switching valve
Sector and locating wheel.Relay piston is set between upper body and lower body, and relay piston is in three-decker, and master is formed with upper body
Chamber and secondary manipulation chamber are manipulated, main outlet chamber and secondary outlet chamber are formed with lower body.It manipulates chamber switching valve and connects shaft, unicom or disconnection
Main manipulation chamber and it is secondary manipulate chamber, pair manipulates chamber and leads to air when disconnection.
Outlet chamber switching valve connects shaft.It is identical with outlet chamber conversion valve arrangement to manipulate chamber switching valve, includes switching valve
Tappet, conversion valve base, connection convert valve tappet and convert the switching valve tappet spring of valve base, are connected with conversion valve tappet
The switching valve valve spring of the switching valve valve and connection switching valve valve that connect.
Piston component setting is controlled between main outlet chamber and secondary outlet chamber, outlet chamber switching valve drives control piston component
Movement, unicom or disconnects main outlet chamber and secondary outlet chamber, and pair outlet chamber leads to air when disconnection.It manipulates interface and is set to upper body, and
It is connected with main manipulation chamber.Outlet interface is set to lower body, and is connected with main outlet chamber.Intake interface is set to lower body, carries
For compressed air needed for brake.
In one embodiment of the invention, control piston component includes control piston, control valve tappet, control mandrel, control
Valve and control slip pipe.Control valve tappet is set to the lower section of control piston, passes through control valve tappet spring and control piston
It is connected.Control mandrel, which is worn, penetrates control piston and control valve tappet.Control valve is set to the lower section of control valve tappet.Control is slided
Pipe is set on the outside of control valve tappet, is connected with control valve by control valve spring, and the both sides for controlling slip pipe are set respectively
The secondary outlet chamber connector for being equipped with the main outlet chamber connector being connected with main outlet chamber and being connected with secondary outlet chamber.
In one embodiment of the invention, the trailer brake valve with fourth gear output pressure further includes emergency piston, urgent living
Plug be set to it is lower emergency braking chamber and for air cavity is formed between lower body in vivo, emergency braking chamber is connected with intake interface, confession
Air cavity is connected with the air feed interface for being arranged in lower body, and the air feed interface is connected with external air tank, is set in emergency piston
It is equipped with main valve, and for being provided with check valve between air cavity and intake interface.
It in one embodiment of the invention, controls and forms control manipulation chamber between piston upper and upper body, control manipulates chamber and going out
Air cavity switching valve is connected when opening with main manipulations chamber, controls manipulation chamber when disconnection and air communicates.Control piston below with it is upper
Control chamber is formed between body, and the gas storage chamber being connected with control chamber is also formed between upper body and upper cover.
In one embodiment of the invention, there is seal request to be connected with each other in the trailer brake valve with fourth gear output pressure
It is sealed using rubber seal between two parts.
In conclusion the trailer brake valve provided by the invention with fourth gear output pressure compared with prior art with
Lower advantage：
Manipulate chamber switching valve disconnect or main the manipulations chamber of unicom and it is secondary manipulate chamber, and when the two disconnects, pair manipulates chamber and greatly
Gas unicom realizes two different manipulation chamber effective areas.Similarly, outlet chamber switching valve drives control piston component movement, breaks
Open or the main outlet chamber of unicom and secondary outlet chamber, and when the two disconnects, secondary outlet chamber and atmosphere, realization it is two different go out
Air cavity effective area.Difference, which manipulates chamber effective area and the intercombination of outlet chamber effective area, realizes four kinds of different output gas
Press the magnification ratio to manipulating air pressure.Driver when in use, can be according to trailer or the loading condition and road conditions item of semitrailer
Part selects different output pressures and manipulates the ratio of air pressure, and the brake not only greatly improved under vehicle case of heavy load is sensitive
Degree, while selecting smaller output pressure when road surface is more sliding and manipulating the ratio of air pressure, avoid the occurrence of vehicle rear wheel locking and
The problems such as sideslip.
In addition, to further increase security performance, it further includes urgent work that this, which has the trailer brake valve of fourth gear output pressure,
Plug, emergency braking chamber, the air feed interface being connected for air cavity and with for air cavity.When emergency occurs, (for example, vehicle encounters
Unexpected to disconnect, main vehicle is detached with trailer), at this point, the air inlet pipe that is connected with intake interface and being connected with manipulation interface
Control lead is torn, emergency braking chamber decompression or logical air, and emergency piston moves up main valve opening, for air cavity and main outlet chamber
Unicom, and the compressed air in external air tank is transported to and realizes emergency braking for air cavity by air feed interface.
For above and other objects of the present invention, feature and advantage can be clearer and more comprehensible, preferred embodiment cited below particularly,
And coordinate attached drawing, it is described in detail below.
Description of the drawings
Fig. 1 show the sectional view of the trailer brake valve with fourth gear output pressure of one embodiment of the invention offer.
The amplification that Fig. 2 show control piston component in the trailer brake valve shown in FIG. 1 with fourth gear output pressure is cutd open
View.
Fig. 3 show the section view after upper cover is rotated by 90 ° in the trailer brake valve shown in FIG. 1 with fourth gear output pressure
Figure.
Fig. 4 show the outline drawing of the trailer brake valve shown in FIG. 1 with fourth gear output pressure.
Specific implementation mode
Fig. 1 show the sectional view of the trailer brake valve with fourth gear output pressure of one embodiment of the invention offer.Fig. 2
It show the enlarged cross-sectional view that piston component is controlled in the trailer brake valve shown in FIG. 1 with fourth gear output pressure.Shown in Fig. 3
Sectional view after being rotated by 90 ° for upper cover in the trailer brake valve shown in FIG. 1 with fourth gear output pressure.Fig. 4 show Fig. 1
Shown in fourth gear output pressure trailer brake valve outline drawing.
The present invention provide a kind of trailer brake valve with fourth gear output pressure wrap lid 1, upper body 2, lower body 3, lower cover 4,
Gear select component 5, relay piston 6, manipulate chamber switching valve 7, outlet chamber switching valve 8, control piston component 9, intake interface 10,
Outlet interface 11 manipulates interface 15 and air feed interface 16.It includes gear knob 51, shaft 52 and choosing that gear, which selects component 5,
Select part 53.Gear knob 51 is set to upper cover 1, and there are four the selection gears of different location for the tool of gear knob 51.Shaft 52 is arranged
In in upper cover 1, and it is connected with gear knob 51.Option stage 53 is set to shaft 52.Relay piston 6 is set to upper body 2 under
Between body 3, relay piston 6 is in three-decker, forms main manipulation chamber 21 and secondary manipulation chamber 22 with upper body 2, main outlet is formed with lower body 3
Chamber 31 and secondary outlet chamber 32.It manipulates chamber switching valve 7 and connects shaft 52, unicom or the main manipulation chamber 21 of disconnection manipulate chamber 22 with secondary, break
Pair manipulation chamber 22 leads to air when opening.
Outlet chamber switching valve 8 connects shaft 52.Control the setting of piston component 9 main outlet chamber 31 and secondary outlet chamber 32 it
Between, outlet chamber switching valve 8 drives control piston component 9 to move, and unicom or disconnects main outlet chamber 31 and secondary outlet chamber 32, when disconnection
Secondary outlet chamber 32 leads to air.It manipulates interface 15 and is set to upper body 2, and be connected with main manipulation chamber 21, main vehicle brake pressure is passed through
It manipulates interface 15 and is transmitted to main manipulation chamber 21.Outlet interface 11 is set to lower body 3, and is connected with main outlet chamber 31.Air inlet connecting
Mouth 10 is set to lower body 3, and required compressed air is provided for brake.
In this present embodiment, control piston component 9 includes control piston 91, control valve tappet 92, control mandrel 93, control
Valve 94 and control slip pipe 95.Control valve tappet 92 is set to the lower section of control piston 91, passes through control valve tappet spring 96
It is connected with control piston 91.Control mandrel 93, which is worn, penetrates control piston 93 and control valve tappet 92.Control valve 94 is set to control
The lower section of valve tappet 92 processed.Control slip pipe 95 is set to 92 outside of control valve tappet, passes through control valve spring 97 and control valve
94 are connected, and the both sides for controlling slip pipe 95 be respectively arranged with the main outlet chamber connector 952 that is connected with main outlet chamber 31 with
And the secondary outlet chamber connector 951 being connected with secondary outlet chamber 32.
And in this present embodiment, Option stage 53 includes that control manipulates the elliptic cam 531 of chamber switching valve 7, control outlet
The sector 532 and locating wheel 533 of chamber switching valve 8.It is identical with 8 structure of outlet chamber switching valve to manipulate chamber switching valve 7, wraps
Include conversion valve tappet 71, conversion valve base 72, connection conversion valve tappet 71 and the switching valve tappet spring for converting valve base 72
73, with the switching valve valve 74 that is connected of conversion valve tappet 71 and it connect the switching valve valve spring 75 of switching valve valve 74.
Concrete implementation mode：Gear knob 51 drives shaft 52 to rotate, and chamber conversion is manipulated by the control of elliptic cam 531
Valve 7 moves downward, and in opened condition, main manipulation chamber 21 and the secondary chamber 22 that manipulates are connected, and manipulate chamber effective area and increase.And as behaviour
Vertical chamber switching valve 7 moves up closing, and main manipulation chamber 21 and pair manipulate the separated of chamber 22, and the secondary chamber 22 that manipulates is by converting valve tappet
Aperture in 71 and 18 unicom of switch room venthole on upper body 2, realization and atmosphere, manipulate the significant surface of chamber at this time
The area of chamber 21 is manipulated based on product.
Likewise, realizing the variation of outlet chamber effective area by controlling outlet chamber switching valve 8.However, main outlet chamber
Unicom or disconnection between 31 and secondary outlet chamber 32 are not by outlet chamber control valve 8 come direct unicom.But pass through control
Piston control assembly 9 processed is realized.Outlet chamber switching valve 8 moves down opening, and control manipulates chamber 17 and is connected with main manipulation chamber 21.When
Manipulating air pressure overcomes control piston spring and 96 two micro-force springs of control valve tappet spring to make under control piston 91 and mandrel 93
When shifting, main outlet chamber connector 952 is disconnected with secondary outlet chamber connector 951, and secondary outlet chamber 32 by 93 thin footpath of mandrel around
Cross O-shaped rubber Mi Quan in slip pipe, realization and atmosphere.I.e. main outlet chamber 31 and secondary outlet chamber 32 disconnect, and outlet chamber significant surface is
31 area of main outlet chamber, output pressure become larger.And when releasing brake, manipulating air pressure declines, and controls piston 91 and controls mandrel
It is moved up under 93 gas pressure in control chamber 23 and gas storage chamber 24, main outlet chamber connector 952 and secondary outlet chamber connector 951
Unicom, 32 unicom of main outlet chamber 31 and secondary outlet chamber, outlet chamber effective area is to increase, and exhaust is accelerated.
In this present embodiment, when manipulating chamber switching valve 7 and outlet chamber switching valve 8 moves up closing, 7 He of chamber switching valve is manipulated
8 place switch room of outlet chamber switching valve is connected by switch room venthole 18 with air.
If manipulating air pressure P1, outlet air pressure is P2, main 21 piston area of manipulation chamber is S11, pair manipulate 22 piston area of chamber be
S12, 31 piston area of main outlet chamber is S21, 32 piston area of secondary outlet chamber is S22.It is considered as S when pair manipulation chamber 22 leads to air12=
0；It is considered as S when secondary outlet chamber 32 leads to air22=0.The equilibrium equation of relay piston 6 is that (piston gravity and frictional resistance can neglect
Slightly disregard)：
P1(S11+S12)=P2(S21+S22)；
P can be obtained2：P1=(S11+S12):(S21+S22)；
When secondary outlet chamber 32 leads to air：P2：P1=(S11+S12)：S21；
When pair manipulates chamber 22 and secondary outlet chamber 32 leads to air：P2：P1=S11：S21；
When main manipulation chamber 21 and the secondary chamber 22 that manipulates communicate, and main outlet chamber 31 and secondary outlet chamber 32 communicate：
P2：P1=(S11+S12):(S21+S22)=1；
When pair, which manipulates chamber 22, leads to air：P2：P1=S11:(S21+S22)；
The manipulation chamber that the main unicom manipulated between chamber 21 and secondary manipulation chamber 22 or disconnection realize two kinds of different conditions is effective
Area.And the unicom or disconnection between main outlet chamber 31 and secondary outlet chamber 32 realize the outlet chamber significant surface of two kinds of different conditions
Product.It is combined with each other the ratio that can be formed four kinds of different output pressures and manipulate air pressure between the two, to realize that fourth gear exports.
Driver can select suitable output pressure and be manipulated according to the case where loading condition and road surface of vehicle in the process of moving
The ratio between air pressure.In this present embodiment, setting output pressure is 2.5 times, 1.5 times, 1 times and 0.6 times with the ratio between air pressure is manipulated.When
Another group of air pressure ratio can be so arranged as required to.
For example, under case of heavy load, since vehicle inertia is larger, there need to be larger brake force, that is, need larger defeated
Go out air pressure and manipulate the ratio between air pressure, selects one grade 2.5 times.It is connected at this point, main manipulation chamber 21 manipulates chamber 22 with pair, and main outlet
Chamber 31 is disconnected with secondary outlet chamber 32.The effective area for manipulating chamber is more than the effective area of outlet chamber, and output pressure is to manipulating pressure
2.5 times of amplification.At this point, vehicle rear output pressure rises the manipulation air pressure more than front part of vehicle, fast braking is realized, improve weight
Sensitivity in the case of load.Amplification of the output gas to manipulation gas herein, is not unlimited, its highest air pressure can only be vehicle
The atmospheric pressure value of air tank.
And vehicle is when raining, snowing and freeze road traveling, the friction system between vehicle tyre and road surface is smaller, main
Chamber 21 is manipulated to disconnect with pair manipulation 22 phase of chamber, and main outlet chamber 31 and 32 unicom of secondary outlet chamber.The effective area for manipulating chamber is less than
The effective area of outlet chamber, output pressure only have manipulate pressure 0.6 times, realize slowly braking, effectively prevent rear lock,
Defective steering stabilizer.However, the present embodiment is not limited in any way this.In other embodiments, driver can close according to actual conditions
The other gears of selection of reason.
Release brake when, main 21 air pressure of manipulations chamber reduces, and the air pressure that control manipulates chamber 17 also reduces, control piston 91 and
Control mandrel 93 is moved up rapidly by the gas pressure for the gas storage chamber 24 being connected with control chamber 23, main outlet chamber 31 and secondary outlet chamber
32 are connected, and outlet cavity area reaches maximum at this time.Releasing brake is quickly discharged in brake pressure, and recovery travel speed is fast, vehicle
Foot wheel abrasion is small afterwards.
In this present embodiment, to further increase the security performance of vehicle, the trailer brake valve with fourth gear output pressure
Further include emergency piston 12, emergency piston 12 is set in lower body 3.And emergency braking chamber 33 is formed between lower body 3 and is supplied
Air cavity 34.Emergency braking chamber 33 is connected with intake interface 10.It is connected with the air feed interface 16 for being arranged in lower body 3 for air cavity 34
Logical, air feed interface 16 is connected with vehicle air tank.And main valve 121 is provided in emergency piston 12.For air cavity 34 and air inlet
It is provided with check valve 14 between interface 10, under the action of check valve 14, is entered for air cavity by the compressed air of intake interface 10
34, and for compressed air in air cavity 34 only into cannot return.
In normal state, be connected with intake interface 10 due to emergency braking chamber 33, have in emergency braking chamber 33 compared with
Big pressure, the pressure push emergency piston 12, and main valve 121 is closed.If in vehicle travel process, for some reason
Trailer and main vehicle break off relations, the air inlet pipeline being connected with intake interface 10 and the pilot line quilt being connected with manipulation interface 15
It pulls apart, the compressed air in air inlet pipeline is discharged into air, and the air pressure in emergency braking chamber 33 at this time declines rapidly.Due to supplying
It is provided with check valve 14 in air cavity 34, will not be reduced for the air pressure in air cavity 34.Emergency piston 12 is for the pressure in air cavity 34
Top is rapidly risen under effect, opens main valve 121, and controlled trailer wheels emergency brake under vehicle air tank gas supply is prevented
Only fault spread.
The trailer with fourth gear output pressure is set in this present embodiment for the sealing performance for reinforcing between each union piece
It is sealed using rubber seal 13 between two parts for having seal request interconnection in brake valve.
In conclusion 7 disconnection of chamber switching valve or the main manipulation chamber 21 of unicom and secondary manipulation chamber 22 are manipulated, and when the two disconnects
When, pair manipulates chamber 22 and atmosphere, realizes two different manipulation chamber effective areas.Similarly, outlet chamber switching valve 8 drives control
Piston component 9 processed moves, and disconnects or the main outlet chamber 31 of unicom and secondary outlet chamber 32, and when the two disconnects, secondary outlet chamber 32 and
Atmosphere realizes two different outlet chamber effective areas.Difference manipulates chamber effective area and outlet chamber effective area is mutual
Combination realizes magnification ratio of four kinds of different output pressures to manipulation air pressure.Driver when in use, can according to trailer or
The loading condition and road conditions condition of semitrailer select different output pressures and manipulate the ratio of air pressure, not only greatly improve
Brake sensitivity under vehicle case of heavy load, while selecting smaller output pressure when road surface is more sliding and manipulating the ratio of air pressure
The problems such as example avoids controlled trailer, semitrailer rear lock and breaks away.
In addition, to further increase security performance, it further includes urgent work that this, which has the trailer brake valve of fourth gear output pressure,
Plug 6, emergency braking chamber 33, the air feed interface 16 being connected for air cavity 34 and with for air cavity 34.When generation emergency (example
Such as, vehicle encounters unexpected disconnection, and main vehicle is detached with trailer), at this point, the air inlet pipe that is connected with intake interface 10 and with manipulation
The control lead that interface 15 is connected is torn, and vehicle need to carry out quick emergency braking, and emergency piston 6 moves up main valve 121 and beats
It opens, for 31 unicom of air cavity 34 and main outlet chamber, and the compressed air in external air tank is transported to for air cavity by air feed interface 16
34 realize emergency braking.
Although the present invention is disclosed above by preferred embodiment, however, it is not intended to limit the invention, this any known skill
Skill person can make some changes and embellishment without departing from the spirit and scope of the present invention, therefore protection scope of the present invention is worked as
Subject to claims range claimed.
Claims (5)
1. a kind of trailer brake valve with fourth gear output pressure, including upper cover, upper body, lower body and lower cover, which is characterized in that
Further include：
Gear selects component, including gear knob, shaft and Option stage, and the gear knob is set to the upper cover, described
There are four the selection gears of different location for gear knob tool；The shaft is set to the upper cover, and with the gear knob phase
Connection；Option stage is set to the shaft, and Option stage includes that control manipulates the elliptic cam of chamber switching valve, control outlet chamber conversion
The sector and locating wheel of valve；
Relay piston is set between the upper body and lower body, and the relay piston is in three-decker, and main behaviour is formed with the upper body
Vertical chamber and secondary manipulation chamber, main outlet chamber and secondary outlet chamber are formed with the lower body；
Chamber switching valve is manipulated, the shaft, the manipulation chamber switching valve unicom or the disconnection main manipulation chamber and secondary manipulation are connected
Chamber, pair manipulates chamber and is communicated with air when disconnection；
Outlet chamber switching valve connects the shaft；The manipulation chamber switching valve is identical with outlet chamber conversion valve arrangement, wraps
Include conversion valve tappet, conversion valve base, the connection conversion valve tappet and the switching valve tappet spring and the institute that convert valve base
State the switching valve valve and the switching valve valve spring for connecting switching valve valve that conversion valve tappet is connected；
Piston component is controlled, the control piston component setting is between the main outlet chamber and secondary outlet chamber, the outlet chamber
Switching valve drives control piston component movement, unicom or disconnects the main outlet chamber and secondary outlet chamber, when disconnection pair outlet chamber with
Air communicates；
Interface is manipulated, is set to the upper body, and be connected with the main manipulation chamber；
Outlet interface is set to the lower body, and is connected with the main outlet chamber；And
Intake interface is set to the lower body, provides compressed air needed for brake.
2. the trailer brake valve according to claim 1 with fourth gear output pressure, which is characterized in that the control piston
Component includes：
Control piston；
Valve tappet is controlled, the lower section of the control piston is set to, is connected with the control piston by control valve tappet spring
It connects；
Mandrel is controlled, wears and penetrates the control piston and control valve tappet；
Control valve is set to the lower section of the control valve tappet；And
Slip pipe is controlled, is set on the outside of the control valve tappet, is connected with the control valve by control valve spring, and institute
The both sides for stating control slip pipe are respectively arranged with the main outlet chamber connector being connected with the main outlet chamber and go out with the pair
The secondary outlet chamber connector that air cavity is connected.
3. the trailer brake valve according to claim 1 with fourth gear output pressure, which is characterized in that described that there is fourth gear
The trailer brake valve of output pressure further includes emergency piston, the emergency piston be set to it is described it is lower in vivo, between the lower body
It forms emergency braking chamber and for air cavity, the emergency braking chamber is connected with the intake interface, it is described for air cavity and setting
It is connected in the air feed interface of the lower body, the air feed interface is connected with external air tank, setting in the emergency piston
There is main valve, and described for being provided with check valve between air cavity and the intake interface.
4. the trailer brake valve according to claim 2 with fourth gear output pressure, which is characterized in that the control piston
Control is formed between the upper body above and manipulates chamber, the control manipulates chamber when outlet chamber switching valve is opened and the main manipulation
Chamber is connected, and when outlet chamber switching valve disconnects, the control manipulates chamber and air communicates；Below the control piston with it is described on
Form control chamber between body, and the upper body with the gas storage chamber being connected with the control chamber is also formed between upper cover.
5. the trailer brake valve according to claim 1 with fourth gear output pressure, which is characterized in that described that there is fourth gear
It is sealed using rubber seal between two parts for having seal request interconnection in the trailer brake valve of output pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610766326.4A CN106274877B (en) | 2014-08-28 | 2014-08-28 | Trailer brake valve with fourth gear output pressure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410429876.8A CN104192134B (en) | 2014-08-28 | 2014-08-28 | Fourth gear output pressure trailer brake valve |
| CN201610766326.4A CN106274877B (en) | 2014-08-28 | 2014-08-28 | Trailer brake valve with fourth gear output pressure |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410429876.8A Division CN104192134B (en) | 2014-08-28 | 2014-08-28 | Fourth gear output pressure trailer brake valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106274877A CN106274877A (en) | 2017-01-04 |
| CN106274877B true CN106274877B (en) | 2018-10-12 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610766326.4A Active CN106274877B (en) | 2014-08-28 | 2014-08-28 | Trailer brake valve with fourth gear output pressure |
| CN201610766075.XA Active CN106274876B (en) | 2014-08-28 | 2014-08-28 | trailer brake valve |
| CN201410429876.8A Active CN104192134B (en) | 2014-08-28 | 2014-08-28 | Fourth gear output pressure trailer brake valve |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610766075.XA Active CN106274876B (en) | 2014-08-28 | 2014-08-28 | trailer brake valve |
| CN201410429876.8A Active CN104192134B (en) | 2014-08-28 | 2014-08-28 | Fourth gear output pressure trailer brake valve |
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| Country | Link |
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| CN (3) | CN106274877B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274877B (en) * | 2014-08-28 | 2018-10-12 | 陈仲明 | Trailer brake valve with fourth gear output pressure |
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| GB350638A (en) * | 1930-04-08 | 1931-06-18 | Electro Mechanical Brake Compa | Improvements relating to automatic valves for pneumatic brake systems |
| DE102007051151B4 (en) * | 2007-04-23 | 2010-04-08 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | commercial vehicle braking system |
| CN201040526Y (en) * | 2007-05-08 | 2008-03-26 | 傅晓辉 | Relay valve |
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| CN201109427Y (en) * | 2007-08-20 | 2008-09-03 | 淄博龙达金山汽车部件有限公司 | Electrically-controlled load sensing emergency relay valve |
| CN201208961Y (en) * | 2008-03-01 | 2009-03-18 | 屠程鑫 | Two stage pressure regulating urgent synchronous relay valve |
| CN201816582U (en) * | 2010-05-31 | 2011-05-04 | 河南昌通科技有限公司 | Secondary snub brake main valve |
| CN201694183U (en) * | 2010-06-02 | 2011-01-05 | 李彦波 | Flexible braking assistance relay valve |
| CN201825031U (en) * | 2010-09-25 | 2011-05-11 | 陈仲安 | Automatic changeover brake valve |
| CN106274877B (en) * | 2014-08-28 | 2018-10-12 | 陈仲明 | Trailer brake valve with fourth gear output pressure |
| CN204095798U (en) * | 2014-08-28 | 2015-01-14 | 陈仲明 | Fourth gear output pressure trailer brake valve |
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2014
- 2014-08-28 CN CN201610766326.4A patent/CN106274877B/en active Active
- 2014-08-28 CN CN201610766075.XA patent/CN106274876B/en active Active
- 2014-08-28 CN CN201410429876.8A patent/CN104192134B/en active Active
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| CN201475302U (en) * | 2009-07-21 | 2010-05-19 | 杭州萧山叉车配件有限公司 | Variable speed operating valve with hydraulic brake device |
| CN103189249A (en) * | 2010-09-20 | 2013-07-03 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Control valve comprising switching means for switching between characteristic curves of brake pressure |
| CN102556037A (en) * | 2011-12-19 | 2012-07-11 | 浙江诸暨东港液压机械有限公司 | Novel three-bridge emergency relay valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106274876A (en) | 2017-01-04 |
| CN106274877A (en) | 2017-01-04 |
| CN104192134A (en) | 2014-12-10 |
| CN104192134B (en) | 2016-12-07 |
| CN106274876B (en) | 2018-12-04 |
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