CN202557521U - Front axle relay valve - Google Patents
Front axle relay valve Download PDFInfo
- Publication number
- CN202557521U CN202557521U CN2012202157070U CN201220215707U CN202557521U CN 202557521 U CN202557521 U CN 202557521U CN 2012202157070 U CN2012202157070 U CN 2012202157070U CN 201220215707 U CN201220215707 U CN 201220215707U CN 202557521 U CN202557521 U CN 202557521U
- Authority
- CN
- China
- Prior art keywords
- port
- braking
- valve
- air flue
- big piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The utility model relates to a relay valve used by a large-size automobile, in particular to a front axle relay valve with functions of parking braking, traveling braking and running state detection. The relay valve comprises a valve body, wherein a normal air inlet, an output port, a traveling braking control air port, a traveling control air port and an air exhaust port are formed in the valve body. The front axle relay valve is characterized in that a braking air channel, a braking air channel valve port, a traveling braking control air channel, a traveling control air channel, a parking piston, a parking control spring, a large piston, a large piston column, a large piston column resetting spring, an air exhaust channel and a movable air exhaust port resetting spring are arranged in the valve body; the air exhaust port is a movable air exhaust port; the parking piston is provided with a pushing end and a controlled end; the other end of the large piston column is matched with the movable air exhaust port to form an air exhaust valve port; and the large piston column has a limiting structure. According to the front axle relay valve, a front axle control air path and a braking air path of the conventional large-size automobile are not changed; and the front axle relay valve accords with the habit of a driver and can realize all functions of braking of a rear axle of the large-size automobile.
Description
Technical field
The utility model relates to the relay valve that a kind of full-sized car uses, the especially a kind of preceding axle relay valve that can realize braking during standstill, service brake and driving states function.
Background technology
The back axle braking of existing full-sized car has three kinds of states, and the state of promptly driving a vehicle, service brake state and braking during standstill state have only and all have this three kinds of states, and chaufeur could let the safety of automobile be able to ensure.Like the disclosed a kind of pair of relay valve pile-up valve of Chinese utility model patent ZL201020220115.9; This pile-up valve comprises structures such as hand valve interface, main valve interface, air feed air receiver interface, piston, valve and a plurality of cavitys; Wherein said main valve interface leads to the A chamber; Hand valve interface leads to the B chamber, and air feed air receiver interface separates through valve and C chamber, and said air feed air receiver interface also separates through another valve and D chamber; The motion that comes control plunger according to the air pressure that gets in the valve cavity, thereby the opening and closing of by-pass valve control.Through the integrated morphology of two relay valves, can shorten the intake and exhaust time to compressed air brake cylinder, reduce the airshed of control cock class, improve the integrated level of automobile air brake system, reduce pipeline and connect, improve the safety and the reliability of brake system work.And, also has the function that can prevent double brake at driving relay valve and the integrated time-out of differential type relay valve.This pile-up valve has certain advantage, can be fit to full-sized car back axle braking requirement.But; Because the propons of full-sized car has steering swivel system; To lay the space than back axle brake system little so the propons brake system is laid the space; And receive the restriction of steering swivel system, and make full-sized car propons brake system structure be different from the back axle brake system structure, the propons braking all is opposite with back axle glancing impact plenum system even.Therefore; The relay valve that is suitable for the braking requirement of full-sized car back axle but can not be directly applied for the braking requirement of full-sized car propons, that is to say, uses the braking system of dying like back axle; When back axle disconnection air feed carried out braking during standstill, propons can't carry out braking during standstill just.Certainly also just make the propons braking fail to realize the repertoire of back axle braking so far.Present various full-sized car is being realized the propons glancing impact; Usually adopt a rapid release valve or a common relay valve to realize service brake, the rapid release valve of employing or common relay valve only can be realized simple function, just need the propons control gas circuit of existing full-sized car be changed with the braking gas circuit if realize multiple function; This change not only increases potential safety hazard; But also quite complicated, waste a large amount of piping materials and master cock, do not meet the use habit of general chaufeur simultaneously yet.Existing relay valve can't satisfy the propons braking function of full-sized car when braking during standstill.Existing full-sized car is when Parking, and the back axle braking is in braking state, and the propons braking is in disarm state, and promptly propons is not braked, and only relies on the braking during standstill of automobile axle.Can also meet requirements in the smooth place of road; But when running into landform bevelled road surfaces such as hill path, abrupt slope and need carry out braking during standstill; Full-sized car only relies on the braking during standstill of back axle just to seem unable to do what one wishes, when particularly full-sized car has born load, safety misadventure takes place very easily.If configuration realizes the product of propons parking braking function separately, but also only can realize mono-propons parking braking function, need to lay pipeline in addition and realize the propons service brake.And also do not see now when being implemented in the back axle braking during standstill, realize the product of propons parking braking function simultaneously.This has brought inconvenience for full-sized car maker and user, and has great potential safety hazard.Therefore, be badly in need of providing a kind of do not change existing full-sized car propons control gas circuit with the braking gas circuit, meet driver habit, realize the preceding axle relay valve of full-sized car back axle braking repertoire.
Summary of the invention
The purpose of the utility model provide a kind of do not change existing full-sized car propons control gas circuit with the braking gas circuit, meet driver habit, realize the preceding axle relay valve of full-sized car back axle braking repertoire.
The basic design of the utility model is: preceding axle relay valve comes the unlatching of by-pass valve control through a Parking controlling spring, thereby makes automobile when braking during standstill, realize the propons braking.Cooperate the selection unlatching of controlling exhaust valve port and braking air flue valve port with the big piston post through movable exhausr port, realize the repertoire of propons braking.
The preceding axle relay valve principle of work of the utility model can simply be interpreted as: 1, vehicle is when the Parking state, because driving control gas port is connected with extraneous hand control valve (HCV) output gas port; Gas in the driving control air flue of preceding axle relay valve is discharged through extraneous hand control valve (HCV) with pipeline; At this moment, the Parking piston moves down under the effect of Parking controlling spring, and promotion big piston post compressing big piston post retracing spring moves downward closes exhaust valve port; Continuing promotion activity exhausr port compressing activity exhausr port retracing spring then moves downward; Thereby open braking air flue valve port, this often the gas in the admission port get into brake piping through the braking air flue through delivery port, thereby realize braking.When the control of braking gas port of promptly driving a vehicle did not all have air pressure with driving control gas port, normal admission port and delivery port were communicated with, and delivery port and exhaust air flue break off.2, when automobile is in the enforcement state, the gas of extraneous hand control valve (HCV) output gets into driving control air flue through driving control gas port, makes Parking piston upward movement and oppresses the Parking controlling spring; Big piston post this moment upward movement under the effect of big piston post retracing spring, and under the effect of position limiting structure, drive together upward movement of big piston; Meanwhile, movable exhausr port under the effect of movable exhausr port retracing spring also upward movement stop upward movement until closing braking air flue valve port; The big piston post continues upward movement and opens exhaust valve port under the effect of big piston post retracing spring, let gas in the brake piping through exhausr port, exhaust to atmosphere, thus remove braking during standstill.The control of braking gas port of promptly driving a vehicle do not have pressure, when driving control gas port has air pressure, normal admission port breaks off with delivery port, delivery port and the connection of exhaust air flue.3, when automobile gets into service brake; The gas of extraneous master brake cylinder output promotes big piston through a service brake control mouthful entering service brake control air flue and moves downward; And make big piston under the effect of position limiting structure, drive big piston post compressing big piston post retracing spring to move downward and close exhaust valve port; Continuing promotion activity exhausr port compressing activity exhausr port retracing spring then moves downward; Thereby open braking air flue valve port, this often the gas in the admission port get into brake piping through the braking air flue through delivery port, thereby realize service brake.When the control of braking gas port of promptly driving a vehicle all had air pressure with driving control gas port, normal admission port and delivery port were communicated with, and delivery port and exhaust air flue break off.
Specifically; The preceding axle relay valve of the utility model has valve body; Offer normal admission port, delivery port, service brake control gas port, driving control gas port and exhausr port on the said valve body; It is characterized in that having in the said valve body braking air flue, braking air flue valve port, service brake control air flue, driving control air flue, Parking piston, Parking controlling spring, big piston, big piston post, big piston post retracing spring, exhaust air flue and movable exhausr port retracing spring, said exhausr port is movable exhausr port, and said normal admission port is connected with delivery port through braking air flue valve port, braking air flue successively; Said service brake control gas port is connected with service brake control air flue; Said driving control gas port is connected with driving control air flue, and said Parking piston has pushing end and controlled end, and said Parking controlling spring contacts with controlled end; Said pushing end matches with big piston post one end; The said big piston post other end formation exhaust valve port that matches with movable exhausr port, said delivery port are connected with the exhaust air flue through control air flue, exhaust valve port successively, and said big piston post has position limiting structure; Said big piston activity is nested with outside the big piston post and with position limiting structure and matches; Said big piston post retracing spring contacts with position limiting structure, and said movable exhausr port matches with braking air flue valve port, and said movable exhausr port retracing spring contacts with movable exhausr port.
The normal admission port that the preceding axle relay valve of the utility model is offered on valve body, delivery port, service brake control gas port, driving control gas port and exhausr port; Be applicable to the connection of the existing pipeline of general full-sized car; Do not increase other pipelines and equipment in addition; Just do not change existing full-sized car propons control gas circuit and braking gas circuit; Do not increase other by-pass valve controls in addition, meet general driver's operation custom, the propons brake system and the back axle brake system that let chaufeur can control full-sized car simultaneously realize same function.And the preceding axle relay valve of the utility model has been realized full-sized car back axle braking repertoire, and compact conformation, functional status are clear and definite, can effectively avoid maloperation, can let before and after the full-sized car bridge all can realize braking during standstill, has increased the safety performance of full-sized car.
Compare with aforementioned existing like product, the preceding axle relay valve of the utility model does not change existing full-sized car propons control gas circuit and brakes gas circuit, meets driver habit and can realize full-sized car back axle braking repertoire.
The content of the utility model combines following examples to do explanation further, but the content of the utility model is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is the preceding structural representation of axle relay valve when the Parking state among the embodiment.
Fig. 2 is the structural representation when preceding axle relay valve is expert at the car state among the embodiment.
Fig. 3 is the structural representation when preceding axle relay valve is expert at the car braking mode among the embodiment.
The specific embodiment
Shown in Fig. 1～3; Preceding axle relay valve described in the present embodiment has valve body 1; Offer normal admission port 2, delivery port 3, service brake control gas port 4, driving control gas port 5 and exhausr port on the said valve body 1; It is characterized in that having in the said valve body 1 braking air flue 6, braking air flue valve port 7, service brake control air flue 8, driving control air flue 9, Parking piston 10, Parking controlling spring 11, big piston 12, big piston post 13, big piston post retracing spring 14, exhaust air flue 15 and movable exhausr port retracing spring 16; Said exhausr port is movable exhausr port 17; Said normal admission port 2 is connected with delivery port 3 through braking air flue valve port 7, braking air flue 6 successively, and said service brake control gas port 4 is connected with service brake control air flue 8, and said driving control gas port 5 is connected with driving control air flue 9; Said Parking piston 10 has pushing end 18 and controlled end 19; Said Parking controlling spring 11 contacts with controlled end 19, and said pushing end 18 matches with big piston post 13 1 ends, and said big piston post 13 other ends match with movable exhausr port 17 and form exhaust valve port 20; Said delivery port 3 is connected with exhaust air flue 15 through control air flue 6, exhaust valve port 20 successively; Said big piston post 13 has position limiting structure 21, and said big piston 12 activities are nested with outside big piston post 13 and with position limiting structure 21 and match, and said big piston post retracing spring 14 contacts with position limiting structure 21; Said movable exhausr port 17 matches with braking air flue valve port 7, and said movable exhausr port retracing spring 16 contacts with movable exhausr port 17.
When using the preceding axle relay valve of present embodiment; Let driving control gas port 5 be connected earlier with extraneous hand control valve (HCV) output gas port; Let driving control of braking gas port 4 be connected with extraneous master brake cylinder output gas port; Let normal admission port 2 be connected, let delivery port 3 be connected, let exhaust air flue 15 be connected with ambient atmosphere with propons brake system brake piping with the output gas port of extraneous air feed air receiver.As shown in Figure 1, vehicle is when the Parking state, because driving control gas port 5 is connected with extraneous hand control valve (HCV) output gas port in the present embodiment; Gases in the driving control air flue 9 of preceding axle relay valve are discharged through extraneous hand control valve (HCV) with pipeline; At this moment; Parking piston 10 moves down under the effect of Parking controlling spring 11 pushing tow controlled end 19; Let pushing end 18 promote big piston post 13 compressing big piston post retracing springs 14 and move downward the movable exhausr port 17 that exposure phase cooperates; And then close exhaust valve port 20, continue promotion activity exhausr port 17 compressing activity exhausr port retracing springs 16 then and move downward, thereby let movable exhausr port 17 open braking air flue valve port 7; This often the gases in the admission port 2 get into extraneous brake piping through delivery port 3 again through braking air flue valve port 7, braking air flue 6 successively, thereby realize braking during standstill to the vehicle propons.When the control of braking gas port 4 of promptly driving a vehicle did not all have air pressure with driving control gas port 5, normal admission port 2 was communicated with delivery port 3, and delivery port 3 breaks off with exhaust air flue 15.
As shown in Figure 2; In the present embodiment when vehicle is in the enforcement state; The gas of extraneous hand control valve (HCV) output gets into driving control air flue 9 through driving control gas port 5; The Parking controlling spring 11 that Parking piston 10 upward movements and compressing are contacted with controlled end 19 is given big piston post 13 upward movement slot millings; Big piston post 13 this moment upward movement under the effect of big piston post retracing spring 14, and under the effect of position limiting structure 21 drive big piston 12 upward movement together; Meanwhile, movable exhausr port 17 also can stop upward movement until closing braking air flue valve port 7 by upward movement under the effect of movable exhausr port retracing spring 16; Big piston post 13 continues upward movement until opening exhaust valve port 20 under the effect of big piston post retracing spring 14; Let in the extraneous brake piping gas successively through delivery port 3, exhaust valve port 20 again through exhaust air flue 15 exhaust to atmospheres, thereby the braking during standstill of freeing vehicle propons.Promptly drive a vehicle control of braking gas port 4 no pressure, when driving control gas port 5 has air pressure, normal admission port 2 breaks off with delivery port 3, delivery port 3 is communicated with exhaust air flue 15.
As shown in Figure 3; In the present embodiment when vehicle gets into service brake; The gas of extraneous master brake cylinder output promotes big piston 12 through service brake control mouthful 4 entering service brake control air flues 8 and moves downward; And make big piston 12 under the effect of position limiting structure 21, drive the movable exhausr port 17 that big piston post 13 compressing big piston post retracing springs 14 move downward the exposure phase cooperation; And then close exhaust valve port 20, continue promotion activity exhausr port 17 compressing activity exhausr port retracing springs 16 then and move downward, thereby let movable exhausr port 17 open braking air flue valve port 7; This often the gases in the admission port 2 get into extraneous brake piping through delivery port 3 again through braking air flue valve port 7, braking air flue 6 successively, thereby realize service brake to the vehicle propons.In the driving braking procedure; The gas of extraneous hand control valve (HCV) output is retained in the driving control air flue 9 through driving control gas port 5; The Parking controlling spring 11 that makes Parking piston 10 keep compressing to contact with controlled end 19; When big piston post 13 moved downward, the pushing end 18 and the big piston post 13 of Parking piston 10 disengaged and keeps motionless.When the control of braking gas port 4 of promptly driving a vehicle all had air pressure with driving control gas port 5, normal admission port 2 was communicated with delivery port 3, and delivery port 3 breaks off with exhaust air flue 15.
Claims (1)
1. axle relay valve before a kind; Has valve body; Offer normal admission port, delivery port, service brake control gas port, driving control gas port and exhausr port on the said valve body; It is characterized in that having in the said valve body braking air flue, braking air flue valve port, service brake control air flue, driving control air flue, Parking piston, Parking controlling spring, big piston, big piston post, big piston post retracing spring, exhaust air flue and movable exhausr port retracing spring, said exhausr port is movable exhausr port, and said normal admission port is connected with delivery port through braking air flue valve port, braking air flue successively; Said service brake control gas port is connected with service brake control air flue; Said driving control gas port is connected with driving control air flue, and said Parking piston has pushing end and controlled end, and said Parking controlling spring contacts with controlled end; Said pushing end matches with big piston post one end; The said big piston post other end formation exhaust valve port that matches with movable exhausr port, said delivery port are connected with the exhaust air flue through control air flue, exhaust valve port successively, and said big piston post has position limiting structure; Said big piston activity is nested with outside the big piston post and with position limiting structure and matches; Said big piston post retracing spring contacts with position limiting structure, and said movable exhausr port matches with braking air flue valve port, and said movable exhausr port retracing spring contacts with movable exhausr port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202157070U CN202557521U (en) | 2012-05-15 | 2012-05-15 | Front axle relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202157070U CN202557521U (en) | 2012-05-15 | 2012-05-15 | Front axle relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557521U true CN202557521U (en) | 2012-11-28 |
Family
ID=47207212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202157070U Withdrawn - After Issue CN202557521U (en) | 2012-05-15 | 2012-05-15 | Front axle relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557521U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642535A (en) * | 2012-05-15 | 2012-08-22 | 四川柯世达汽车制动系统集团有限公司 | Relay valve of front axle |
| CN104512401A (en) * | 2013-09-26 | 2015-04-15 | 浙江科力车辆控制系统有限公司 | Proportional pressure reducing valve of autocrane |
-
2012
- 2012-05-15 CN CN2012202157070U patent/CN202557521U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642535A (en) * | 2012-05-15 | 2012-08-22 | 四川柯世达汽车制动系统集团有限公司 | Relay valve of front axle |
| CN102642535B (en) * | 2012-05-15 | 2014-09-10 | 四川柯世达汽车制动系统集团有限公司 | Relay valve of front axle |
| CN104512401A (en) * | 2013-09-26 | 2015-04-15 | 浙江科力车辆控制系统有限公司 | Proportional pressure reducing valve of autocrane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204279398U (en) | A kind of tractor truck gas-liquid brake system | |
| CN201784616U (en) | Relay, quick-release and bidirectional integrated valve and pneumatic brake system | |
| CN102642535B (en) | Relay valve of front axle | |
| CN102514567A (en) | Automobile pneumatic braking system | |
| CN202557521U (en) | Front axle relay valve | |
| CN102336187B (en) | Hand brake valve of rubber-tire vehicle | |
| CN108556830B (en) | Control method of electric control pneumatic automobile braking system | |
| WO2011153668A1 (en) | Double relay valve intergrated valve | |
| CN106627541A (en) | Automobile active hydraulic braking system | |
| CN103010196B (en) | Pilot central valve position control type integrated master pump | |
| CN205554170U (en) | Car vacuum helps ware of stopping | |
| CN202429194U (en) | Dual-channel electrical control relay valve of ABS (Anti-lock Brake System) | |
| CN202378856U (en) | Master brake valve with microswitch | |
| CN204527182U (en) | Automobile front axle holding brake device, parking braking system of automobile | |
| EP2022688A3 (en) | Additional brake system and release device for additional braking system for actuating the brakes on inertia braked trailer vehicles | |
| CN203819220U (en) | Parking brake system of trailer for underground coal mine | |
| CN101492043B (en) | Relay bi-pass quick-releasing combined valve | |
| CN203902525U (en) | Air brake system for vehicle and vehicle | |
| CN108082168B (en) | Electric control relay valve with double-way unidirectional function | |
| CN104590226B (en) | A kind of hill start servicing unit and vehicle | |
| CN212386470U (en) | Intelligent digital electric control air brake valve for automobile | |
| CN105365805A (en) | Pneumatic braking system capable of preventing vehicle from having malfunctions | |
| CN202593492U (en) | Parking braking control device and pneumatically braked vehicle | |
| CN203157982U (en) | Electronic parking braking control system and automobile using same | |
| CN2868789Y (en) | Fully double-circuit automobile braking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121128 Effective date of abandoning: 20140910 |
|
| RGAV | Abandon patent right to avoid regrant |