CN2690245Y - Novel balance rear wheel brake valve assembly - Google Patents
Novel balance rear wheel brake valve assembly Download PDFInfo
- Publication number
- CN2690245Y CN2690245Y CN 200420006741 CN200420006741U CN2690245Y CN 2690245 Y CN2690245 Y CN 2690245Y CN 200420006741 CN200420006741 CN 200420006741 CN 200420006741 U CN200420006741 U CN 200420006741U CN 2690245 Y CN2690245 Y CN 2690245Y
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- China
- Prior art keywords
- valve body
- piston
- valve
- rear wheel
- following
- 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.)
- Expired - Fee Related
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Abstract
A novel balance rear wheel brake valve assembly comprises an upper valve body, a piston, a spiral spring, a bottom valve body, valve components, a piston projecting edge, a piston narrow neck and a bottom valve body flute. The piston is arranged in the upper valve body, the external edge of the piston is provided with a sealing ring, the upper end of the piston is provided with a plurality of ventilating chambers, the upper end of the bottom valve body is sealing connected with the bottom end of the upper valve body, the spiral spring is arranged between the piston and the bottom valve body, and an air inlet opening is arranged at the upper end of the upper valve body. The external edge of the bottom valve body is provided with a plurality of air inlet and outlet openings, the lower end of the bottom valve body is provided with coaxial valve components, the inner of the upper end of the bottom valve body is provided with venting holes, the lower end of the piston is provided with a project edge, the circumferential surface of the project edge sliding sealing matched with the corresponding side of the bottom valve body flute, and a sealing ring is arranged between the circumferential surface and the corresponding side. The utility model can increase the adaptability and the security and can reduce the traffic accidents.
Description
Technical field
The utility model relates to automobile component, particularly a kind of novel balance braking valve of rear wheel assembly.
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.
Background technology
There is following problem in existing braking valve of rear wheel: when the braking valve of rear wheel piston moves down when opening valve, the air pressure in the braking gas circuit can produce and brakes opposite pressure piston, has hindered the opening speed of braking valve of rear wheel valve, influences braking effect.The working air pressure of trailing wheel braking produces the pressure opposite with brake-pressure when serious to piston, can make the braking valve of rear wheel valve closing, can cause brake failure and causes serious traffic accident.
Summary of the invention
The purpose of this utility model just provides a kind of novel balance braking valve of rear wheel assembly, piston is produced and brake opposite pressure at glancing impact with what solve that existing braking valve of rear wheel exists, hinder the opening speed of braking valve of rear wheel valve, influenced the problem of braking effect.
The technical solution of the utility model is: comprise upper valve body 1, piston 2, coil spring 15, following valve body 17, valve member, piston flange 18, the thin neck 20 of piston, following valve body recess 19 and seal ring 4, piston 2 is positioned at upper valve body 1, following valve body 17 upper ends are connected with the lower end vapor seal of upper valve body 1, coil spring 15 is provided with a plurality of admission port A, A1 in the end face or the side of the upper end of described upper valve body 1 between piston 2 and following valve body 17; Valve member is positioned at the center of valve body 17 down, and a flange 18 is arranged in the lower end of described piston 2, and the outer peripheral face of this flange 18 cooperates with a described corresponding sideslip dynamic seal of valve body recess 19 down, is provided with seal ring 4 between the two.Outer rim at described piston 2 is provided with seal ring 3, and there are a plurality of breather chamber 16 upper end of piston 2; Be provided with a plurality of air inlet/outlet B, C in the described outer of valve body 17 down, be provided with coaxial valve member in the lower end of this time valve body 17, be provided with air extractor vent 6 in the inside, upper end of this time valve body 17.
Described valve member comprises valve port, valve 7, coil spring 10, the guided seat 8 that is positioned at following valve body 17 centers, valve 7 is positioned at valve port, guided seat 8 is inserted in its lower end slipper seal, coil spring 10 is enclosed within outside the valve 7, its two ends withstand on respectively between the step of the upper end of following guided seat 8 and valve 7 upper ends, and guided seat 8 is fixed on down in the valve body 17 by jump ring 13; Between described vent B and C are connected to inside and outside the valve port.
The utility model advantage is: by increasing back piston for brake valve upper plane area, and reduce piston lower flat area, thus reduce the counter pressure of operating air pressure greatly to piston, obviously reduced to produce thus brake resistance, make the braking fast and flexible, make its pistons work normal; Improve comformability and safety greatly, reduced the generation of traffic accident.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model structure.
The specific embodiment
Referring to Fig. 1, the utility model comprises upper valve body 1, piston 2, coil spring 15, following valve body 17, valve member, piston flange 18, the thin neck 20 of piston, following valve body recess 19 and seal ring 4.Piston 2 is positioned at upper valve body 1, and following valve body 17 upper ends are connected with the lower end vapor seal of upper valve body 1, and coil spring 15 is provided with a plurality of admission port A, A1 in the end face or the side of the upper end of described upper valve body 1 between piston 2 and following valve body 17.Piston 2 is positioned at upper valve body 1, and seal ring 3 slipper seals of the outer rim by being located at piston 2 between the two cooperate.A plurality of breather chamber 16 are arranged in the upper end of piston 2.Valve member is positioned at the centre hole of valve body 17 down, one flange 18 is arranged in the lower end of described piston 2, the outer peripheral face of this flange 18 cooperates with a corresponding sideslip dynamic seal of described valve body recess 19 down, be provided with seal ring 4 between the two, this structure makes the compression area of piston 2 lower ends be reduced to flange 18 around interior area.Be provided with a plurality of air inlet/outlet B, C in the described outer of valve body 17 down, be provided with coaxial valve member in the lower end of this time valve body 17, be provided with air extractor vent 6 in the inside, upper end of this time valve body 17.
Described valve member comprises valve port, valve 7, coil spring 10, guided seat 8, O RunddichtringO 9 and 14, dust guard 11, snap ring 21 and the jump ring 13 that is positioned at following valve body 17 centers, valve 7 is positioned at valve port, its lower end slipper seal is inserted in the hole on guided seat 8 tops, the sliding surface of between is provided with seal ring 14, is provided with snap ring 21 outside the side face of the lower end of valve 7.Coil spring 10 is enclosed within outside the valve 7, and its two ends withstand on respectively between the step of the upper end of following guided seat 8 and valve 7 upper ends, and guided seat 8 is fixed on down in the valve body 17 by jump ring 13.Be respectively equipped with seal ring 5 and 9 between upper valve body 1 and the following valve body 17 and between guided seat 8 and the following valve body 17.Interconnect as a whole by a plurality of screws 12 between upper valve body 1 and the following valve body 17.Between described vent B and C are connected to inside and outside the valve port.
The utility model principle of work is: because of the admission port B of braking valve of rear wheel directly is communicated with the work air receiver to the air chamber F of operating air pressure, and the thin neck bottom surface 24 of piston 2 has only 2mm apart from the upper end of the valve 7 of operating air pressure, and the gas passage length of braking pressure from air receiver to braking valve of rear wheel have 15 approximately surplus rice.Glancing impact, operating air pressure exceeds than braking pressure and manys times in a short period of time.Though this operating air pressure height because work pressurized plane 23 (being the lower surface of piston 2) are less, reduces its pressure.On the other hand, though braking pressure is low,, its pressure is increased because work pressurized plane 22 (being the upper surface of piston 2) are bigger.So operating air pressure can not produce the pressure opposite with braking pressure to piston, make braking valve of rear wheel piston 2 push valve 7 open balance and stability, can not hinder opening speed, can not influence braking effect and cause brake failure.
Working process of the present utility model is: at glancing impact, add braking pressure at induction opening A, A1, it is descending that this pressure promotes piston 2, the thin neck 20 of piston 2 end faces is pushed valve 7 open, opening valve port makes braking gas enter the F chamber and go into the D chamber by valve 7 from vent B, thereby, make operating air pressure enter the purpose that brake system reaches braking with conducting between vent B and the C.
The utility model is particularly suitable for equipped or is retrofitted on the various large, medium and small type automobile of China's one vapour, Second Automobile Works and other manufacturers produce, make each wheel shaft braking effectively good more, guarantee that each wheel shaft rate of braking and axle load adapt, thereby reach the insensitivity of automobile under various load and deceleration, on muddy ice and snow road, can realize stable equilibrium's braking.
Claims (3)
1, a kind of novel balance braking valve of rear wheel assembly, comprise upper valve body (1), piston (2), coil spring (15), following valve body (17), valve member, piston flange (18), the thin neck of piston (20), following valve body recess (19), piston (2) is positioned at upper valve body (1), outer rim at described piston (2) is provided with seal ring (3), and there are a plurality of breather chamber (16) upper end of piston (2); Following valve body (17) upper end is connected with the lower end vapor seal of upper valve body (1), and coil spring (15) is positioned between piston (2) and the following valve body (17), is provided with admission port in the upper end of described upper valve body (1); Be provided with a plurality of air inlet/outlets (B, C) in the described outer of valve body (17) down, lower end at this time valve body (17) is provided with coaxial valve member, be provided with air extractor vent (6) in the inside, upper end of this time valve body (17), it is characterized in that: be provided with a flange (18) in the lower end of described piston (2), the outer peripheral face of this flange (18) cooperates with a corresponding sideslip dynamic seal of described valve body recess (19) down, is provided with seal ring (4) between the two.
2, novel balance braking valve of rear wheel assembly according to claim 1, it is characterized in that: the admission port of the upper end of described valve body (1) has a plurality of, is located at end face (A) or side (A1) respectively.
3, novel balance braking valve of rear wheel assembly according to claim 1 and 2, it is characterized in that: described valve member comprises valve port, valve (7), coil spring (10), the guided seat (8) that is positioned at following valve body (17) center, valve (7) is positioned at valve port, guided seat (8) is inserted in its lower end slipper seal, coil spring (10) is enclosed within outside the valve (7), its two ends withstand on respectively between the upper end and the step on the valve (7) of following guided seat (8), and guided seat (8) is fixed on down in the valve body (17) by jump ring (13); Between described vent B and C are connected to inside and outside the valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006741 CN2690245Y (en) | 2004-03-12 | 2004-03-12 | Novel balance rear wheel brake valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006741 CN2690245Y (en) | 2004-03-12 | 2004-03-12 | Novel balance rear wheel brake valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690245Y true CN2690245Y (en) | 2005-04-06 |
Family
ID=34668097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420006741 Expired - Fee Related CN2690245Y (en) | 2004-03-12 | 2004-03-12 | Novel balance rear wheel brake valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690245Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192136A (en) * | 2014-09-22 | 2014-12-10 | 昌通科技有限公司 | 140-type relay valve |
| CN104192135A (en) * | 2014-09-22 | 2014-12-10 | 昌通科技有限公司 | Delong relay valve |
| CN107323443A (en) * | 2017-07-10 | 2017-11-07 | 谢洪川 | A kind of lower valve body and its high-precision brake valve |
-
2004
- 2004-03-12 CN CN 200420006741 patent/CN2690245Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192136A (en) * | 2014-09-22 | 2014-12-10 | 昌通科技有限公司 | 140-type relay valve |
| CN104192135A (en) * | 2014-09-22 | 2014-12-10 | 昌通科技有限公司 | Delong relay valve |
| CN107323443A (en) * | 2017-07-10 | 2017-11-07 | 谢洪川 | A kind of lower valve body and its high-precision brake valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |