CN201217436Y - Multi-axle synchronous brake valve for emergency - Google Patents
Multi-axle synchronous brake valve for emergency Download PDFInfo
- Publication number
- CN201217436Y CN201217436Y CNU2008200842921U CN200820084292U CN201217436Y CN 201217436 Y CN201217436 Y CN 201217436Y CN U2008200842921 U CNU2008200842921 U CN U2008200842921U CN 200820084292 U CN200820084292 U CN 200820084292U CN 201217436 Y CN201217436 Y CN 201217436Y
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- emergency
- gas
- valve body
- valve
- piston
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- Expired - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a multi-axle emergency synchronous brake valve, comprising an upper valve body of the emergency brake valve and a lower valve body connected with the upper valve body; a valve seat is arranged in the lower valve body; a valve is arranged on the valve seat; a gas chamber, a big piston, a bush, a gas storage cylinder interface and a plurality of gas outlets are arranged inside the lower valve body. Gas inlets and a gas source control interface are arranged inside the upper valve body; a bush is also arranged in the upper valve body, and an emergency piston is arranged inside the bush; the emergency piston is provided with an emergency piston rod and a plurality of one-way valves and O-seal rings; a convex flank gas cavity and a plurality of gas cavities are arranged between the bush and the emergency piston; and two one-way valves and a plurality of O-seal rings are arranged on the emergency piston rod in the convex flank gas cavity. The gas inlets and the gas source control interface are distributed in a T-form; at the same time, the air hole at the other end of the gas source control interface is directly communicated with the gas cavity. The convex flank gas cavity and the gas chamber are provided with a direct air passage. The utility model is suitable for braking large vehicles, semi-trailers and trailers.
Description
Technical field
The utility model relates to a kind of brake activation valve, especially relates to a kind of multi-bridge emergency synchronous brake valve.
Background technology
Brake valve of car is the control center of brake system of car middle rolling car braking, is used to control the too back axle braking of automobile, superimposed trailer and the braking of trailer.Because its trailing wheel of above-mentioned vehicle is far away from headstock, if directly braked by the brake activation valve of front portion, pipeline is longer, and braking can obviously lag behind front-wheel, so these vehicles are all controlled the rear portion braking with emergency brake valve.At present in the vehicle of the many trailers that use emergency brake valve, superimposed trailer, normal two or more emergency relay valve of installation that adopt make the braking force between bridge and bridge tire not of uniform size, cause the vehicle locking, stop partially. problems such as wear on tyres is irregular, also exist simultaneously and remove the wheel that brake is considerably slower than front part of vehicle, cause the trailing wheel car that stagnates, recovery is travelled slowly, so, the quantity that adopt to increase disconnected moving valve solves the problem of trailing wheel braking neither best choice, how to use the back brake synchronously, it is also synchronous to remove brake, is related to the big problem of ride safety of automobile.
Summary of the invention
The purpose of this utility model is to provide a kind of modern design at the defective of the emergency brake valve of the trailing wheel braking of above-mentioned vehicle, has the multi-bridge emergency synchronous brake valve that brake is fast, releasing is fast.
In order to achieve the above object, the utility model has mainly adopted following technical scheme to finish.The utility model mainly is made up of the upper valve body of emergency brake valve and the following valve body of coupled body, be provided with valve seat in the valve body down, on valve seat, be provided with valve,, also be provided with air tank interface and some air extractor ducts also being provided with air chamber and big piston and lining in the valve body down.In upper valve body, be provided with admission port and control gas source interface, in upper valve body, also be provided with lining, be provided with emergency piston in the lining, emergency piston is made up of emergency piston bar and many check valves and many O RunddichtringOs, between lining and emergency piston, be provided with a protruding abdomen type air cavity, in protruding abdomen type air cavity, on the emergency piston bar, be provided with two check valves and many O RunddichtringOs.Admission port and control gas source interface are tee T and distribute, and the other end pore of controlling gas source interface simultaneously directly leads to air cavity.Protruding abdomen type air cavity and air chamber have a straight air duct.
The utility model compared with prior art has following tangible advantage and innovation.(1) the utility model is provided with a protruding abdomen type air cavity and two check valves on upper valve body, also be provided with many O RunddichtringOs, because the check valve exhaust can continue to keep original pressure, can guarantee for this reason that air inlet is unidirectional and fill to gas storage barrel, can guarantee under the emergency braking situation simultaneously that air extractor duct and the external pipe that is connected thereof, air chamber can keep original air pressure constant always, not be implemented in when having other sources of the gas also can keep emergency braking.(2) braking effect is good, and it is fast to remove brake.The utility model is installed on automobile, the superimposed trailer, makes the front and rear part brake synchronously, can not occur the phenomenon that the back car pushes away front truck in brake process, has guaranteed the braking needs of the many wheels of long vehicle.(3) simple in structure, stable performance, material economy.
The utility model is applicable to the braking of big automobile, superimposed trailer and trailer.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the utility model integral structure cut-away view.
Fig. 2 is the utility model A-A cut-away view.
The specific embodiment
Shown in Fig. 1 or 2, the utility model mainly is made up of the upper valve body 10 of emergency brake valve and the following valve body 12 of coupled body, be provided with valve seat 14 in the valve body 12 down, on valve seat 14, be provided with valve 13, also being provided with air chamber 17 and big piston 16 and lining 15 in the valve body 12 down, also be provided with air tank interface 11 and some air extractor ducts 19.In upper valve body 10, be provided with admission port 1 and control gas source interface 18, in upper valve body 10, also be provided with lining 9, be provided with emergency piston 2 in the lining 9, emergency piston 2 is provided with emergency piston bar 8, be provided with a protruding abdomen type air cavity 4 and air cavity 20 between lining 9 and emergency piston 2, in protruding abdomen type air cavity 4, on emergency piston bar 8, be provided with 6,7 and two O RunddichtringOs 3,5 of two check valves.Admission port 1 and control gas source interface 18 are tee T and distribute, and the other end pore of controlling gas source interface 18 simultaneously directly leads to air cavity 20.Protruding abdomen type air cavity 4 and air chamber 17 have a straight air duct.
Embodiment
Gas circuit is set
1, air inlet is to be inflated to air tank interface 11 by check valve 7 by admission port 1.
2, when normal driving.Because the source of the gas air pressure of the source of the gas air pressure 〉=air tank interface 11 of admission port 1, emergency piston 2 two ends area S simultaneously
1＞S
2, as the product P1 * S of emergency piston 2 two ends areas and pressure
1＞P2 * S
2The time, for this reason emergency piston 2 when normal driving to S
2Direction promotes to put in place, make O type circle 5 and lining 9 sealings, O type circle 3 draws into a gas channels with lining 9 simultaneously, control source interface 18 enters air chamber 17 by the passage between O type circle 3 and the lining 9 and air cavity 20 and air cavity 4, promoting big piston 16 advances downwards, push valve 13 open, make the passage of gas between valve 13 and following valve body 12 of air tank interface 11 flow to air extractor duct 19 and flow out to external brake repair room, realize braking.When the needs brake off, the source of the gas air pressure discharging of control source interface 18, vapour in the air chamber 17 is by the passage between O type circle 3 and the lining 9 and air cavity 20 and 18 discharges of air cavity 4 flow direction control source interfaces, big piston 16 is upwards resetted, valve 13 also resets simultaneously, make the vapour of external brake repair room be discharged to atmosphere, thereby realize brake off through the middle preformed hole of valve 13 and valve seat 14.
3, when emergency braking.Because the inlet air source pressure decay or the interruption of admission port 1 are as the product P1 * S of emergency piston 2 two ends areas and pressure
1＜P2 * S
2The time, emergency piston 2 is to S
1Direction promotes to put in place, make O type circle 3 and lining 9 sealings, O type circle 5 draws into a passage with lining 9 simultaneously, the passage of gas between check valve 6 and O type circle 5 and lining 9 that leads to air tank interface 11 flows into air chamber 17 through air cavity 4, promotes downwards thereby promote big piston 16, push valve 13 open, make the passage of gas between valve 13 and following valve body 12 of air tank interface 11 flow into air extractor duct 19, connect the brake repair room inflation to external, thereby realize emergency braking.Simultaneously, because check valve 6 has unidirectional air guide function, make the gas of air cavity 4 and air chamber 17 can't be to emergency piston 2 two ends exhausts, thereby continue to keep original pressure when being implemented in emergency braking, can guarantee air extractor duct 19 and the external pipe that is connected thereof for this reason, air chamber 17 can keep original air pressure constant always, is not implemented in when having other sources of the gas also can keep emergency braking.When automobile recover to be exercised, the air pressure of admission port 1 end is local to rise, as the source of the gas air pressure of the source of the gas air pressure 〉=air tank interface 11 of admission port 1, emergency piston 2 two ends area S simultaneously
1＞S
2, as the product P1 * S of emergency piston 2 two ends areas and pressure
1＞P2 * S
2The time, emergency piston 2 is to S
2Direction promotes to put in place, make O type circle 5 and lining 9 sealings, O type circle 3 draws into a gas channels with lining 9 simultaneously, vapour in the air chamber 17 flows to control source interface 18 by passage between O type circle 3 and the lining 9 and air cavity 4. air cavitys 20 and discharges, big piston 16 is upwards resetted, valve 13 also resets simultaneously, makes the vapour of external brake repair room be discharged to atmosphere through the middle preformed hole of valve 13 and valve seat 14, thereby realizes brake off.
The utility model is applicable to the braking of big automobile, superimposed trailer and trailer.
Claims (4)
1, a kind of multi-bridge emergency synchronous brake valve, formed by the upper valve body (10) of emergency brake valve and the following valve body (12) of coupled body, be provided with valve seat (14) in the valve body (12) down, on valve seat (14), be provided with valve (13), also be provided with air chamber (17) and big piston (16) and lining (15) in the valve body (12) down, also be provided with air tank interface (11) and some air extractor ducts (19), in upper valve body (10), be provided with admission port (1) and control gas source interface (18), it is characterized in that in upper valve body (10), also being provided with lining (9), be provided with emergency piston (2) in the lining (9), emergency piston (2) has emergency piston bar (8) and many check valves and many O RunddichtringOs to form, and is provided with a protruding abdomen type air cavity (4) and air cavity 20 between lining (9) and emergency piston (2).
2, multi-bridge emergency synchronous brake valve according to claim 1, be provided with a protruding abdomen type air cavity (4) in it is characterized in that between lining (9) and emergency piston (2), in protruding abdomen type air cavity (4), on emergency piston bar (8), be provided with two check valves (6), (7) and two O RunddichtringOs (3), (5).
3, multi-bridge emergency synchronous brake valve according to claim 1 is characterized in that admission port (1) and control gas source interface (18) are tee T and distribute, and the other end pore of controlling gas source interface (18) simultaneously directly leads to air cavity (20).
4, multi-bridge emergency synchronous brake valve according to claim 1 is characterized in that protruding abdomen type air cavity (4) and air chamber (17) have a straight air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200842921U CN201217436Y (en) | 2008-03-12 | 2008-03-12 | Multi-axle synchronous brake valve for emergency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200842921U CN201217436Y (en) | 2008-03-12 | 2008-03-12 | Multi-axle synchronous brake valve for emergency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201217436Y true CN201217436Y (en) | 2009-04-08 |
Family
ID=40540270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200842921U Expired - Fee Related CN201217436Y (en) | 2008-03-12 | 2008-03-12 | Multi-axle synchronous brake valve for emergency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201217436Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531185B (en) * | 2008-03-12 | 2012-07-11 | 王绿阳 | Multi-bridge emergency synchronous brake valve |
-
2008
- 2008-03-12 CN CNU2008200842921U patent/CN201217436Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531185B (en) * | 2008-03-12 | 2012-07-11 | 王绿阳 | Multi-bridge emergency synchronous brake valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20110312 |