CN2645987Y - Automobile air brake valve - Google Patents
Automobile air brake valve Download PDFInfo
- Publication number
- CN2645987Y CN2645987Y CN 03210588 CN03210588U CN2645987Y CN 2645987 Y CN2645987 Y CN 2645987Y CN 03210588 CN03210588 CN 03210588 CN 03210588 U CN03210588 U CN 03210588U CN 2645987 Y CN2645987 Y CN 2645987Y
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- CN
- China
- Prior art keywords
- valve
- brake
- air
- piston
- shell body
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- 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 - Lifetime
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses an automobile air brake valve which is mainly composed of a brake valve body upper cover, a brake valve upper shell body and a brake valve lower shell body, wherein the brake valve upper shell body and the brake valve lower shell body which are connected with the brake valve body upper cover is arranged under the upper cover, the upper part of the upper cover is provided with a brake pedal, a push rod which is arranged under the brake pedal is connected with an upper piston arranged in the upper shell body, and a compensating spring and a return spring are arranged outside the upper piston. The upper shell body is provided with an air inlet and an air outlet connected with a back brake chamber, wherein the air inlet is connected with a back air storage barrel, the lower shell body is provided with an air inlet and an air outlet connected with a front brake chamber, and the air inlet is connected with a front air storage barrel. An exhaust port is arranged under the lower shell body. An upper chamber is arranged in the upper shell body, an upper valve is arranged in the upper chamber, and the upper valve is connected with the upper piston. A middle piston is also arranged in the upper shell body, the middle piston is arranged under the upper valve, and a vent hole is also arranged in the upper chamber, causing compressed air in the upper chamber to communicated with an air exhaust interstice above the middle piston. A lower chamber is arranged in the lower shell body, a lower valve is arranged in the lower chamber, and the lower valve is connected with the middle piston. The utility model is suitable for the automobile and other vehicles.
Description
Technical field
The utility model relates to the Automobile air brake activation valve in a kind of automobile double pipeline air braking system.
Background technology
Brake valve of car is the control center of brake system of car middle rolling car braking, in the parallel double-chamber brake activation valve that generally uses at present, the major defect that exists is the balance spring that generally uses rigidity, the soft property of glancing impact is bad, the upper and lower cavity difference of pressure is bigger, and volume is big, and it is bigger to form glancing impact air pressure bounce, so it is long generally to form pedal, influences installing space.
Summary of the invention
The purpose of this utility model is to provide a kind of reasonable in design at the existing problem of above-mentioned brake activation valve, and volume is little, compact conformation, safe and reliable Automobile air brake activation valve.
In order to achieve the above object, the utility model has mainly adopted following technical scheme to realize.The utility model is mainly by the braking valve upper cover and be located at loam cake below, coupled brake activation valve upper shell and lower house are formed, the top of loam cake is provided with brake pedal, the brake pedal below is provided with tappet, tappet is connected at the upper piston in the upper shell, and upper piston is provided with balance spring and pull back spring outward.Described upper shell is provided with admission port that connects the back air tank and the air extractor duct that is connected the back brake repair room, is provided with the admission port and the air extractor duct that is connected preceding brake repair room of air tank before connecting on lower house.The below of lower house is provided with exhausr port.Be provided with epicoele in the described upper shell, be provided with valve in the epicoele, last valve is connected with upper piston.Also be provided with middle piston in the upper shell, middle piston also is provided with air extractor vent the pressurized air of epicoele is communicated with the exhaust clearance of middle piston top below last valve in the epicoele.Be provided with cavity of resorption in lower house, be provided with lower valve in the cavity of resorption, lower valve links to each other with middle piston.
The utility model compared with prior art has following obvious advantage and progress.(1), the utility model is a two-chamber tandem piston formula structure, brake repair room and preceding brake repair room provide essentially identical braking attitude air pressure backward respectively in upper and lower chamber, by the chaufeur direct control, as service brake, when the air supply source in a chamber is cut off or the work of the working line of its control when damaging, still can work as usual in another chamber, and output characteristic is constant, therefore improved the safety of driving greatly.(2), the utility model adopts rubber balance spring and counter balance pocket independently, so smooth-going when brake snub, soft, servo-actuated is good, and is highly sensitive, gas transmission is fast during emergency braking.
The utility model is applicable to automobile and other vehicle.
Below in conjunction with the drawings and specific embodiments the utility model is done into a detailed description.
Description of drawings
Accompanying drawing is the utility model integral structure cut-away view.
The specific embodiment
As shown in the figure, the utility model is mainly by braking valve upper cover 2 and be located at loam cake 2 belows, coupled brake activation valve upper shell 18 and lower house 16 are formed, the top of loam cake 2 is provided with brake pedal 1, brake pedal 1 below is provided with tappet 19, tappet 19 is connected at the upper piston 4 in the upper shell 18, upper piston 4 outer balance spring 3 and the pull back springs 5 of being provided with.Described upper shell 18 is provided with admission port 17 that connects the back air tank and the air extractor duct 7 that is connected the back brake repair room, is provided with the admission port 15 and the air extractor duct 12 that is connected preceding brake repair room of air tank before connecting on lower house 16.The below of lower house 16 is provided with exhausr port 14.Be provided with epicoele 6 in the described upper shell 18, be provided with valve 8 in the epicoele 6, last valve 8 is connected with upper piston 4.Piston 10 in also being provided with in the upper shell 18, middle piston 10 also is provided with air extractor vent 9 pressurized air of epicoele 6 is communicated with the exhaust clearance of middle piston 10 tops below last valve 8 in the epicoele 6.Be provided with cavity of resorption 11 in lower house 16, be provided with lower valve 13 in the cavity of resorption 11, lower valve 13 links to each other with middle piston 10.
Embodiment
As shown in the figure, when stepping on brake pedal 1, depress tappet 19, balance spring 3 and upper piston 4 are moved down, eliminate exhaust clearance, after push valve 8 open, the pressurized air of coming from the back air tank this moment enters epicoele 6 through the air inlet gap of last valve 8 and upper valve body, and is transported to the back brake repair room, make trailing wheel produce brake action, meanwhile, piston 10 tops during the pressurized air of epicoele 6 acts on by air extractor vent 9, piston 10 moves down and lower valve 13 is opened in making, at this moment, the gap of pressurized air between lower valve 3 and following valve body of coming from air tank enters cavity of resorption 11, and is transported to preceding brake repair room, makes front wheel brake.
During loosen the brake 1, be subjected to the effect of balance spring 3 and piston return spring 5, upper piston 4 moves up, last valve 8 moves up thereupon, with the path blockade of back air tank with the back compressed air brake cylinder, on continuing, moves upper piston 4, form exhaust clearance with last valve 8 upper ends, the pressurized air of back compressed air brake cylinder is through epicoele 6 and exhaust clearance, again through exhausr port 14 exhaust to atmospheres.Simultaneously, middle piston 10 is moved by cavity of resorption 11 compressed-air actuated using, lower valve 13 with on move, with the path blockade between preceding air tank and the preceding compressed air brake cylinder, on continuing, moves in middle piston 10, with the upper end formation exhaust clearance of lower valve 13, the pressurized air of preceding brake repair room is through cavity of resorption 11 and exhaust clearance, again through exhausr port 14 exhaust to atmospheres.
The utility model is applicable to automobile and other vehicle.
Claims (2)
1, a kind of Automobile air brake activation valve, mainly by braking valve upper cover (2) and be located at loam cake (2) below, coupled brake activation valve upper shell (18) and lower house (16) are formed, the top of loam cake (2) is provided with brake pedal (1), brake pedal (1) below is provided with tappet (19), described upper shell (18) is provided with admission port 17 that connects the back air tank and the air extractor duct (7) that is connected the back brake repair room, on lower house (16), be provided with the admission port (15) and the air extractor duct (12) that is connected preceding brake repair room of air tank before connecting, the below of lower house (16) is provided with exhausr port (14), it is characterized in that tappet (19) is connected at the upper piston (4) in the upper shell (18), outer balance spring (3) and the pull back spring (5) of being provided with of upper piston (4).
2, Automobile air brake activation valve according to claim 1, it is characterized in that being provided with in the described upper shell (18) epicoele (6), be provided with valve (8) in the epicoele (6), last valve (8) is connected with upper piston (4), also be provided with middle piston (10) in the upper shell (18), middle piston (10) is in the below of last valve (8), also being provided with air extractor vent (9) in the epicoele (6) makes the pressurized air of epicoele (6) communicate with the exhaust clearance of middle piston (10) top, in lower house (16), be provided with cavity of resorption (11), be provided with lower valve (13) in the cavity of resorption (11), lower valve (13) links to each other with middle piston (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210588 CN2645987Y (en) | 2003-09-12 | 2003-09-12 | Automobile air brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210588 CN2645987Y (en) | 2003-09-12 | 2003-09-12 | Automobile air brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2645987Y true CN2645987Y (en) | 2004-10-06 |
Family
ID=34289426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210588 Expired - Lifetime CN2645987Y (en) | 2003-09-12 | 2003-09-12 | Automobile air brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2645987Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436213C (en) * | 2006-09-30 | 2008-11-26 | 田青锋 | Three-inlet and multi-exit two-stage electromagnetic booster braking general pump |
| CN100436214C (en) * | 2006-09-30 | 2008-11-26 | 田青锋 | Two-stage electromagnetic booster braking general pump of three-inlet and multi-exit |
| CN102390374A (en) * | 2011-09-28 | 2012-03-28 | 芜湖市安芜汽车制动元件有限公司 | Air brake valve assembly |
| CN110065486A (en) * | 2019-05-24 | 2019-07-30 | 福州大学 | A kind of double brake valve and its control method based on brake system of car |
-
2003
- 2003-09-12 CN CN 03210588 patent/CN2645987Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436213C (en) * | 2006-09-30 | 2008-11-26 | 田青锋 | Three-inlet and multi-exit two-stage electromagnetic booster braking general pump |
| CN100436214C (en) * | 2006-09-30 | 2008-11-26 | 田青锋 | Two-stage electromagnetic booster braking general pump of three-inlet and multi-exit |
| CN102390374A (en) * | 2011-09-28 | 2012-03-28 | 芜湖市安芜汽车制动元件有限公司 | Air brake valve assembly |
| CN110065486A (en) * | 2019-05-24 | 2019-07-30 | 福州大学 | A kind of double brake valve and its control method based on brake system of car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG WANAN SCIENCE & TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHUJI AUTOMOBILE BRAKE SYSTEM CO., LTD., WAN AN GROUP Effective date: 20080328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080328 Address after: Zhuji City, Zhejiang Province town of Wan An science and Technology Park, zip code: 311835 Patentee after: Zhejiang VIE Science & Technology Co., Ltd. Address before: Zhuji City, Zhejiang Province town of Wan An science and Technology Park, zip code: 311835 Patentee before: Zhuji Automobile Braking System Co., Ltd., Wanan Group |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130912 Granted publication date: 20041006 |