CN1367109A - Improved automobile rear wheel brave valve - Google Patents
Improved automobile rear wheel brave valve Download PDFInfo
- Publication number
- CN1367109A CN1367109A CN 02104045 CN02104045A CN1367109A CN 1367109 A CN1367109 A CN 1367109A CN 02104045 CN02104045 CN 02104045 CN 02104045 A CN02104045 A CN 02104045A CN 1367109 A CN1367109 A CN 1367109A
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- China
- Prior art keywords
- valve
- piston
- valve body
- valve seat
- rear wheel
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- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The present invention relates to an improved automobile rear wheel brake valve, including valve body, piston, helical spring, valve seat and valve component, in which the piston is positioned in the valve body, upper end of valve seat and lower end of valve body are airtight-connected, and the spring is positioned between piston and valve seat, the upper end of the described valve body is equipped with air inlet, the valve component is positioned at the centre of valve seat, an airtight segregation barrier is set between the piston and the valve seat, and its centre has a hole, the centre of the described piston is equipped with an axial regulating bar, the said regulating bar is passed through the central hole of the described segregation barrier, they are slipper-sealed, the external edge of the piston has two parallel sealing rings, and the air inlet of valve body is positioned at the centre of external end of the valve body. Its braking is quick and flexible, and its safety is high.
Description
Technical field
The present invention relates to automobile component, particularly a kind of improved automobile rear wheel brave valve.
Background technology
The compressed-air controlled brake valve of car is the piston that promotes brake activation valve by operating air pressure, connects gas circuit by the valve of this piston promotion brake activation valve to drg again, thereby reaches the purpose of braking.
There is following problem in existing braking valve of rear wheel:
1, move when opening valve when piston, the air pressure in the braking gas circuit can produce the pressure opposite with braking to piston, hinders opening speed, influences braking effect, can cause brake failure in the time of seriously, causes the accident;
2, piston and valve spacing are difficult for adjusting, and can not it be adjusted at optimum regime according to vehicle condition and external factor;
3, piston has only an O RunddichtringO, and the piston lack of equilibrium all can be caused in the side in the admission port position that promotes piston, causes because of piston-deflection and blocks brake failure.
Summary of the invention
Purpose of the present invention just provide a kind ofly reduce counter pressure, can adjust the open position, improved automobile rear wheel brave valve that piston can balance work.
Technical scheme of the present invention is: comprise valve body, piston, coil spring, valve seat, valve member, piston is positioned at valve body, the valve seat upper end is tightly connected with valve body lower end, spring is between piston and valve seat, in the upper end of described valve body induction opening A is arranged, valve member is positioned at the center of valve seat, at described piston and valve base chamber one air-tightness division board is arranged, and the heart is porose therein; At the center of described piston one axial adjustment bar is arranged, this adjust bar passes the centre hole of described division board, and slipper seal between the two has two parallel seal rings in the outer rim of piston; Described valve body induction opening A is positioned at the center of this valve body outer end.
The outer rim of described division board and centre hole inner edge thereof all have O type circle.
Described adjust bar is connected with piston thread, and clamp nut is arranged outside adjust bar, and a protruding dish is arranged in the outer end of adjust bar.
Described valve member comprises valve port, valve plug, coil spring, orienting sleeve, vent B and the C that is positioned at the valve seat center, valve plug is positioned at valve port, orienting sleeve is inserted in its lower end, coil spring is enclosed within outside the valve plug, its two ends withstand on respectively between the upper end and the step on the valve plug of following orienting sleeve, and orienting sleeve is fixed in the valve seat by jump ring; Between vent B and C are connected to inside and outside the valve port.
Advantage of the present invention is: reduce the counter pressure of braking pressure to piston greatly by division board, obviously reduced to produce thus brake resistance, make the braking fast and flexible; At the adjusting lever that piston end surface is provided with, can be according to vehicle condition, the sensitivity of load-carrying and road surface situation adjustment braking has improved comformability and safety; Two parallel seal rings being set and valve end work gas induction opening is arranged on the center at piston has all increased piston balancing, and it is worked more reliably, avoids because the unbalance brake failure that causes.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Referring to Fig. 1, the present invention includes valve body 1, piston 2, valve seat 5, valve member, piston 2 is positioned at valve body 1, and valve seat 5 upper ends and valve body lower end are tightly connected, and seal ring 6 is arranged between the two.There is induction opening A at center, upper end at described valve body 1, and valve member is positioned at the center of valve seat 5.At described piston 2 and 5 of valve seats an air-tightness division board 4 is arranged, the heart has centre hole therein, in the outer of this division board 4 and the interior edge of centre hole O RunddichtringO 22 and 21 is arranged respectively.By the axial adjustment bar 19 that is threaded, this adjust bar 19 passes the centre hole of described division board 4, and seal ring 11 slipper seals are arranged between the two at the center of described piston 2.Outer rim at piston 2 has two parallel seal rings 14.Clamp nut 3 is arranged outside adjust bar 19, a protruding dish 18 is arranged in the outer end of adjust bar 19, this protruding dish 18, fixing with screw 15.Between piston 2 and division board 4, coil spring 16 is arranged.
Described valve member is a prior art, it comprises valve port, valve plug 7, coil spring 17, orienting sleeve 8 and vent B, the C at the center that is positioned at valve seat 5, valve plug 7 is positioned at valve port, orienting sleeve 8 is inserted in its lower end, coil spring 17 is enclosed within outside the valve plug 7, its two ends withstand on respectively between the step of the upper end of following orienting sleeve 8 and valve plug 2 upper ends, and orienting sleeve is fixed in the valve seat 5 by jump ring 13; Between vent B and C are connected to inside and outside the valve port.Seal ring 9 is arranged outside orienting sleeve 8.
Working process of the present invention is: at glancing impact, add work air pressure at induction opening A, it is descending that this pressure promotes piston 2, and the adjust bar 19 of piston 2 end faces promotes valve plug 7, opens valve port and make the conducting between vent B and C of braking gas.Prior art does not have division board 4, and when opening valve port, braking gas charges into the valve port top and piston 2 is produced one upwards pressure, this pressure is opposite with operating air pressure, has weakened the downward displacing force of piston 2, influences braking effect.After increasing division board 4, reduced counter pressure (compression area of piston 2 reduces).
The present invention is particularly suitable for equipped or is retrofitted on the truck of (140,145,151,153 take advantage of dragon series, liberation series, red rock, Steyr, Chunlan), on the various big bus cars, make each wheel shaft braking effectively good more on the minibus car, guarantee that each wheel shaft rate of braking and axle load adapt, thereby reach the insensitivity of automobile under various load and deceleration, realize stable braking at the first-class energy of muddy ice and snow road.
Claims (4)
1, a kind of improved automobile rear wheel brave valve, comprise valve body (1), piston (2), coil spring (16), valve seat (5), valve member, piston (2) is positioned at valve body (1), valve seat (5) upper end is tightly connected with valve body (1) lower end, spring (16) is positioned between piston (2) and the valve seat (5), there is induction opening A upper end at described valve body (1), valve member is positioned at the center of valve seat (5), it is characterized in that: an air-tightness division board (4) is arranged between described piston (2) and valve seat (5), and the heart is porose therein; At the center of described piston (2) an axial adjustment bar (19) is arranged, this adjust bar (19) passes the centre hole of described division board (4), and slipper seal between the two has two parallel seal rings (14) in the outer rim of piston; Described valve body induction opening A is positioned at the center of this valve body (1) outer end.
2, improved automobile rear wheel brave valve according to claim 1 is characterized in that: the outer rim of described division board (4) and centre hole inner edge thereof all have O type circle (22) and (21).
3, improved automobile rear wheel brave valve according to claim 1 is characterized in that: described adjust bar (19) is threaded with piston (2), and clamp nut (3) is arranged outside adjust bar (19), and a protruding dish (18) is arranged in the outer end of adjust bar (19).
4, improved automobile rear wheel brave valve according to claim 1, it is characterized in that: described valve member comprises valve port, valve plug (7), coil spring (17), orienting sleeve (8), vent B and the C that is positioned at valve seat (5) center, valve plug (7) is positioned at valve port, orienting sleeve (8) is inserted in its lower end, coil spring (17) is enclosed within outside the valve plug (7), its two ends withstand on respectively between the upper end and the step on the valve plug (2) of following orienting sleeve (8), and orienting sleeve is fixed in the valve seat (5) by jump ring 13; Between vent B and C are connected to inside and outside the valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021040451A CN1147407C (en) | 2002-03-07 | 2002-03-07 | Improved automobile rear wheel brave valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021040451A CN1147407C (en) | 2002-03-07 | 2002-03-07 | Improved automobile rear wheel brave valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1367109A true CN1367109A (en) | 2002-09-04 |
| CN1147407C CN1147407C (en) | 2004-04-28 |
Family
ID=4739977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021040451A Expired - Fee Related CN1147407C (en) | 2002-03-07 | 2002-03-07 | Improved automobile rear wheel brave valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1147407C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115135545A (en) * | 2020-03-06 | 2022-09-30 | 采埃孚商用车系统欧洲有限公司 | Fluid valve, valve device and brake system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5161828B2 (en) * | 2009-04-01 | 2013-03-13 | 日立オートモティブシステムズ株式会社 | Brake device for vehicle |
-
2002
- 2002-03-07 CN CNB021040451A patent/CN1147407C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115135545A (en) * | 2020-03-06 | 2022-09-30 | 采埃孚商用车系统欧洲有限公司 | Fluid valve, valve device and brake system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1147407C (en) | 2004-04-28 |
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| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |