CN205971276U - Mechanical type ABS anti -lock relay valve - Google Patents
Mechanical type ABS anti -lock relay valve Download PDFInfo
- Publication number
- CN205971276U CN205971276U CN201621017044.6U CN201621017044U CN205971276U CN 205971276 U CN205971276 U CN 205971276U CN 201621017044 U CN201621017044 U CN 201621017044U CN 205971276 U CN205971276 U CN 205971276U
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- China
- Prior art keywords
- atmospheric pressure
- relay valve
- pressure
- controller
- mechanical type
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Abstract
The utility model provides a mechanical type ABS anti -lock relay valve, includes relay valve body, controller, regulator, relay valve body and controller fixed connection, the controller with regulator sealing connection just is connected with the involucra control part that is used for the conditioning controller internal gas pressure between the two, be provided with first atmospheric pressure chamber and second atmospheric pressure chamber in the controller, first atmospheric pressure intracavity be provided with with first atmospheric pressure piston rod is connected to the involucra control part, second atmospheric pressure intracavity is provided with second atmospheric pressure piston rod, the involucra control part with be provided with the atmospheric pressure pipeline of control second atmospheric pressure piston rod motion between the second atmospheric pressure chamber, reached can guarantee the car when braking, the tire can not the locking, guarantees the tire and can brake when the brake that the frictional force of increase tire, and then avoid the condition of back end whip to take place improves the safe driving performance of car.
Description
Technical field
This utility model is related to automobile brake parts technical field, particularly to a kind of mechanical type ABS anti-lock servo
Valve.
Background technology
Basically form with China's highway backbone network, there is large-tonnage, the length of obvious ton kilometre cost advantage
Wheelbase semitrailer, trailer also increase year by year.When long wheelbase emergency brake of vehicle, wheel is in locking, slip state, leads to make
Dynamic distance extends, and vehicle produces sideslip or breaks away and make vehicle lose steering capability, and especially bad weather, road conditions are not good, high
Easily vehicle accident when travelling in speed.
For this problem, the Chinese patent of Patent No. CN1919668A discloses a kind of urgent servo of ABS
Valve, including solenoid valve and relay valve, wherein relay valve is fixed on the bottom of solenoid valve, and electricity connected by its total pump steam inlet
The air intake duct of magnetically condition valve, and connect control chamber C through the air flue in solenoid valve, electricity is connected at the top of the exhaust duct of relay valve
The decompression air flue of magnetically condition valve, relay valve adopts emergency relay valve, and exhaust duct is arranged on the center of emergency relay valve.Reach
On the premise of not changing ECU (electronic control unit) and the wheel speed sensors of ABS anti-lock braking system, by emergency relay valve and
ABS solenoid valve is integrated, and can be arranged on semitrailer, use on trailer.When the supply air line of main car ruptures suddenly
When, trailer has emergency braking function of dying, and improves the safety of car load.
And the relay valve of existing trailer does not have the function of ABS anti-lock braking system, experienced driver can adopt
Stopped and stopped to realize preventing the situation of tire locking slowly with point, it is to avoid the direction of tire locking and uncontrollable vehicle, cause vapour
Car skids.So, large trailer needs in addition go this ABS anti-lock braking system is installed, but due to ABS anti-skid braking system
System use solenoid valve, such valve body structure is excessively complicated, and processing cost is also higher, once and valve certain portion
Part breaks down it is necessary to change whole valve.
Utility model content
The purpose of this utility model is to provide a kind of processing cost low, and structure is simple, makes vehicle in brake hard situation
The mechanical type ABS anti-lock relay valve of tire locking will not occur down.
Above-mentioned purpose of the present utility model technical scheme is that：A kind of mechanical type ABS anti-lock
Relay valve, including servo valve body, described servo valve body is fixedly connected with controller and regulator, described controller with
Described regulator is tightly connected and is connected with the epithelium control unit for adjusting controller internal gas pressure, described control between the two
It is provided with the first atmospheric pressure cavity and the second atmospheric pressure cavity, described first air pressure intracavity is provided with and is connected with described epithelium control unit in device
One pneumaticpiston bar, described second air pressure intracavity is provided with the second pneumaticpiston bar, described epithelium control unit and described second gas
It is provided with the air-pressure duct controlling the second pneumaticpiston bar motion between pressure chamber.
By the first atmospheric pressure cavity and the second atmospheric pressure cavity, the air pressure entering is adjusted so that the first pneumaticpiston bar and the
Two pneumaticpiston bars carry out overcoming spring force to be moved, and make the air pressure in controller keep air inlet and the function of venting, simultaneously
So that regulator and controller can keep the atmospheric pressure value that servo valve body can brake to begin under the control of epithelium control unit
It is maintained at eventually in the range of protection atmospheric pressure value, and then the effective use braked can be kept, atmospheric pressure value will not be made too low, and lead to
Brake failure.
Preferably, described controller includes the primary air inlet connecting with the first atmospheric pressure cavity and first row pore, with the second gas
The second air inlet that first air inlet of pressure chamber connection setting is connected with gas receiver.
Air pressure is inputted the first air pressure intracavity by primary air inlet, and air pressure can be entered servo valve body through the first air pressure intracavity
Interior, when carrying out hard braking, air pressure can be entered from the first air inlet, and air pressure enters epithelium control unit through the second atmospheric pressure cavity, and then
The stable of air pressure can be controlled it is ensured that air pressure is too low and lead to brake cannot work.
Preferably, epithelium control unit includes diaphragm, regulating piston bar and the epithelium chamber connecting with described air-pressure duct, institute
State epithelium chamber to connect with the bottom of regulator.
Preferably, described regulator includes pressure regulation valve spring retainer, pressure regulator valve central shaft, pressure regulation valve pocket and pressure regulation bullet
Spring, described pressure spring supports and sets and pressure spring seat between, and described pressure regulator valve central shaft one end is supported on pressure spring seat.
Preferably, the outer circle wall of described first pneumaticpiston bar and the second pneumaticpiston bar is provided with multiple draw-in grooves,
It is connected with sealing ring on each described seal groove.
Preferably, the inwall of described first atmospheric pressure cavity and the second atmospheric pressure cavity is provided with multiple seal grooves, described in adjacent two
It is formed with the projection being tightly connected with sealing ring between seal groove.
In sum, this utility model has the advantages that：By the controller of setting, tune on servo valve body
Pressure device and epithelium control unit, can be relay valve have prevent tire occur locking state it is ensured that automobile is being braked
When it is ensured that the air pressure in relay valve is not less than protection value, and then can ensure that Brake Energy persistently brakes, also make tire simultaneously
Certain rotation can be kept in brake, and then can avoid automobile that the situation of whipping occurs, tire can be reduced simultaneously
Abrasion.
Brief description
Fig. 1 is the structural representation of this utility model mechanical type ABS anti-lock relay valve；
Fig. 2 is the sectional view of this utility model mechanical type ABS anti-lock relay valve A-A；
Fig. 3 is the structural representation for the first pneumaticpiston bar and the second pneumaticpiston bar；
Fig. 4 is the A portion enlarged diagram of this utility model mechanical type ABS anti-lock relay valve；
Fig. 5 is the B portion enlarged diagram of this utility model mechanical type ABS anti-lock relay valve.
In figure, 1, servo valve body；2nd, controller；21st, the first atmospheric pressure cavity；22nd, the first pneumaticpiston bar；23rd, the second gas
Pressure chamber；24th, the second pneumaticpiston bar；25th, air-pressure duct；26th, housing；261st, seal groove；262nd, raised；263rd, sealing ring；27、
First pressure spring；28th, the second pressure spring；3rd, epithelium control unit；31st, diaphragm；32nd, regulating piston bar；33rd, epithelium chamber；34、
Valve port；4th, regulator；41st, pressure regulation valve spring retainer；42nd, pressure regulator valve central shaft；43rd, pressure regulation valve pocket；44th, pressure spring；5th, main
Air inlet；51st, first row pore；52nd, the first air inlet；53rd, the second air inlet.
Specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in further detail.
A kind of mechanical type ABS anti-lock relay valve, as shown in figure 1, including servo valve body 1, sets on servo valve body 1
It is equipped with a mounting seat, controller 2 and regulator 4 have been bolted on this mounting seat, between mounting seat and controller 2
It is provided with sealing gasket to realize being tightly connected.
As depicted in figs. 1 and 2, this controller 2 includes the housing 26 being tightly connected with mounting seat, arranges on this housing 26
There is primary air inlet 5, start just there is first row pore 51 with primary air inlet 5 the same side, relatively open up with the opposite side of primary air inlet 5
There are the first air inlet 52 and the second air inlet 53.The first atmospheric pressure cavity connecting with servo valve body 1 is begun with this housing 26
21 and second atmospheric pressure cavity 23, primary air inlet 5 is connected with the first atmospheric pressure cavity 21 with first row pore 51, the first air inlet 52 and second
Air inlet 53 is connected with the second atmospheric pressure cavity 23.
As shown in Fig. 2 being provided with the first pneumaticpiston bar 22 in the first atmospheric pressure cavity 21, arrange in the second atmospheric pressure cavity 23
There is the second pneumaticpiston bar 24, equidistant arrangement sets along along the outer circle wall of the first pneumaticpiston bar 22 and the second pneumaticpiston bar 24
It is equipped with multiple draw-in grooves, elects three in the present embodiment as, this draw-in groove is ringwise arranged, be embedded in sealing ring in each draw-in groove
263；The inner peripheral wall of the first atmospheric pressure cavity 21 and the second atmospheric pressure cavity 23 begins with and the first pneumaticpiston bar 22 and the second gas
The seal groove 261 that sealing ring 263 on pressure piston rod 24 cooperates, is formed with and sealing ring between adjacent two seal grooves 261
263 mutually support and set the projection 262 forming sealing, by sealing ring 263 in the cooperation with seal groove 261 and projection 262 so that the
When one pneumaticpiston bar 22 and the second pneumaticpiston bar 24 respectively overcome the first pressure spring 27 and the second pressure spring 28 motion,
Form sealing space in the first atmospheric pressure cavity 21 and the second atmospheric pressure cavity 23, carry out in the first atmospheric pressure cavity 21 and the second atmospheric pressure cavity 23
Air pressure controls.
As shown in Figure 2 and Figure 4, this regulator 4 includes a regulation valve pocket, is provided with pressure regulation valve spring in regulating valve intracavity
Seat, pressure spring 44, pressure regulation valve spring retainer connects pressure spring 44, and pressure spring is divided into upper spring seat and lower spring for 44 41
Seat, one end of upper spring seat is supported to set and is connected with pressure regulator valve central shaft 42.
As shown in Figure 4 and Figure 5, it is provided with epithelium control unit 3 between pressure regulation valve pocket 43 and the first atmospheric pressure cavity 21, this epithelium
Control unit 3 includes the epithelium chamber 33 for storing air, is connected with diaphragm 31 in epithelium chamber 33 interior sealing, diaphragm 31 is equipped with
Regulating piston bar 32, is arranged with spring outside this regulating piston bar 32, meanwhile, one end of regulating piston bar 32 and pressure spring seat 41
Support and set, the other end is supported with the first pneumaticpiston bar 22 and sets；Offer pneumatic circuit between epithelium chamber 33 and the second atmospheric pressure cavity 23,
Second atmospheric pressure cavity 23 is connected with epithelium chamber 33.
During work, trailer air pressure enters in the first atmospheric pressure cavity 21 from primary air inlet 5, and air pressure is in the first atmospheric pressure cavity 21 through auxiliary
Air inlet is helped to enter the intrinsic plunger shaft of relay, when the air pressure of the first air inlet 52 output is less than 8KG, in epithelium chamber 33
Valve port 34 close, regulating piston bar 31 moves to the direction of the first atmospheric pressure cavity 21 so that valve port 34 is opened, the first pneumaticpiston
The air pressure at bar 22 top is discharged to pressure regulating cavity from the centre bore of copper axle, and now, the first pneumaticpiston bar 22 is to the side in epithelium chamber 32
To motion；Meanwhile, primary air inlet 5 is opened, and first row QI KOU is closed, and primary air inlet 5 is filled successively into servo valve body 1
Gas.This process can when automobile when being brought to a halt, be not result in tire locking so that automobile is taken turns in multiple brake process
Tire can keep slowly braking, and then automobile will not occur the action of whipping, and then can improve the safety of automobile.
When the air pressure in gas receiver is less than 7KG, the second pneumaticpiston bar overcomes spring force to the side of the second air inlet 53
To being moved；Now, close the air-pressure duct 25 between the second atmospheric pressure cavity 23 and epithelium chamber 33, the air pressure row in epithelium chamber 33
Go out, primary air inlet 5 continues air inlet.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make to the present embodiment after reading this specification as needed does not have the modification of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (6)
1. a kind of mechanical type ABS anti-lock relay valve, including servo valve body（1）It is characterised in that：Described servo valve body
（1）On be fixedly connected with controller（2）And regulator（4）, described controller（2）With described regulator（4）It is tightly connected
And be connected between the two for adjusting controller（2）The epithelium control unit of internal gas pressure（3）, described controller（2）Inside it is provided with
First atmospheric pressure cavity（21）With the second atmospheric pressure cavity（23）, described first atmospheric pressure cavity（21）Inside it is provided with and described epithelium control unit（3）
Connect the first pneumaticpiston bar（22）, described second atmospheric pressure cavity（23）Inside it is provided with the second pneumaticpiston bar（24）, described epithelium
Control unit（3）With described second atmospheric pressure cavity（23）Between be provided with control the second pneumaticpiston bar（24）The air-pressure duct of motion
（25）.
2. mechanical type ABS anti-lock relay valve according to claim 1 it is characterised in that：Described controller（2）Including with
First atmospheric pressure cavity（21）The primary air inlet of connection（5）With first row pore（51）, with the second atmospheric pressure cavity（23）The of connection setting
One air inlet（52）The second air inlet being connected with gas receiver（53）.
3. mechanical type ABS anti-lock relay valve according to claim 1 it is characterised in that：Epithelium control unit（3）Including film
Piece（31）, regulating piston bar（32）And with described air-pressure duct（25）The epithelium chamber of connection（33）, described epithelium chamber（33）With
Regulator（4）Bottom connection.
4. mechanical type ABS anti-lock relay valve according to claim 1 it is characterised in that：Described regulator（4）Including
Pressure regulation valve spring retainer（41）, pressure regulator valve central shaft（42）, pressure regulation valve pocket（43）And pressure spring（44）, described pressure spring
（44）Support and set and pressure spring（44）Between seat, described pressure regulator valve central shaft（42）One end is supported located at pressure spring（44）On seat.
5. mechanical type ABS anti-lock relay valve according to claim 1 it is characterised in that：Described first pneumaticpiston bar
（22）With the second pneumaticpiston bar（24）Outer circle wall on be provided with multiple draw-in grooves, each described seal groove（261）Upper connection
There is sealing ring（263）.
6. mechanical type ABS anti-lock relay valve according to claim 5 it is characterised in that：Described first atmospheric pressure cavity（21）
With the second atmospheric pressure cavity（23）Inwall on be provided with multiple seal grooves（261）, seal groove described in adjacent two（261）Between be formed with
With sealing ring（263）The projection being tightly connected（262）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621017044.6U CN205971276U (en) | 2016-08-31 | 2016-08-31 | Mechanical type ABS anti -lock relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621017044.6U CN205971276U (en) | 2016-08-31 | 2016-08-31 | Mechanical type ABS anti -lock relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205971276U true CN205971276U (en) | 2017-02-22 |
Family
ID=58039765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621017044.6U Expired - Fee Related CN205971276U (en) | 2016-08-31 | 2016-08-31 | Mechanical type ABS anti -lock relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205971276U (en) |
-
2016
- 2016-08-31 CN CN201621017044.6U patent/CN205971276U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20180831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |