CN2818262Y - Emergent relay valve assembly of automotive - Google Patents
Emergent relay valve assembly of automotive Download PDFInfo
- Publication number
- CN2818262Y CN2818262Y CN 200520014580 CN200520014580U CN2818262Y CN 2818262 Y CN2818262 Y CN 2818262Y CN 200520014580 CN200520014580 CN 200520014580 CN 200520014580 U CN200520014580 U CN 200520014580U CN 2818262 Y CN2818262 Y CN 2818262Y
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- piston
- chamber
- valve body
- control chamber
- ladder
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Abstract
The utility model relates to an emergency relay valve assembly of an automobile, which comprises an upper valve body and a lower valve body, wherein a control opening on the upper valve body is communicated with a control chamber on the lower valve body; a piston is arranged in the control chamber, and is connected with a pressure opening valve which is arranged in the lower valve body. The piston is a hollow ladder-shaped piston with a big upper end and a small lower end, and is divided into an upper ladder and a lower ladder. The control chamber is a ladder-shaped control chamber corresponding to the plunger, and is divided into an upper chamber, a middle chamber and a lower chamber by a piston. The upper end of the piston is closed, the bottom end of the piston is provided with a flow throttling hole which is communicated with the lower chamber of the control chamber and the lateral wall of the lower ladder of the piston is provided with an air through hole and is communicated with the middle chamber of the control chamber. The utility model causes the air pressure of an air outlet of the emergency relay valve to have a certain leading quantity, the air pressure of the air outlet can be dynamically changed into zero in a leading way in the process of braking and the driving safety is ensured.
Description
Technical field
The utility model relates to a kind of automobile emergency relay valve assembly.
Background technology
Emergency relay valve is contained on trailer or the superimposed trailer, is handled by tractor truck main brake gas circuit and emergency braking gas circuit, makes trailer braking protection valve or brake off.Simultaneously, after trailer loading line or brake piping interruption gas leakage or taking off extension, trailer is automatically braked, thereby guaranteed the trailer traffic safety.But its braking gas circuit of trailer emergency relay valve commonly used at present is longer than tractor truck braking gas circuit, thereby the situation that trailer braking protection valve lags behind the tractor truck braking occurs, influences traffic safety.
Summary of the invention
The utility model is longer than tractor truck braking gas circuit at the trailer braking protection valve gas circuit, exist trailer braking protection valve to lag behind the situation of tractor truck braking, a kind of automobile emergency relay valve assembly is provided, can have effectively solved the situation that trailer braking protection valve in the brake process lags behind the tractor truck braking, guaranteed traffic safety.
To achieve these goals, the technical solution adopted in the utility model is: a kind of automobile emergency relay valve assembly, comprise upper valve body and following valve body, control mouth on the upper valve body is communicated with control chamber on the following valve body, the indoor piston that is provided with of control chamber, the piston opened by pressure valve interior with being located at down valve body is connected, it is characterized in that: described piston is small top and big bottom stepped hollow piston, ladder and downstairs on the branch, described control chamber is and the cooresponding stepped control chamber of described piston, and be divided into upper chamber by piston, middle chamber and lower chambers, described piston upper end closed, the bottom is provided with cutoff port and is communicated with the lower chambers of control chamber, and the downstairs sidewall of piston is provided with air extractor vent and is communicated with the middle chamber of control chamber.
As a kind of preferred version of the present utility model, described piston upper end is by the pressing plate sealing of band seal ring.
As a kind of optimization of the present utility model, the last ladder and the downstairs of described piston are provided with seal ring.
The utility model is owing to adopt technique scheme, trailer is in the starting stage of braking procedure, because the effect of cutoff port, make on the piston, there is area difference in lower surface, trailer is in the starting stage of braking procedure, the air extractor duct air pressure of automobile emergency relay valve is higher than the control implication and presses, after the opened by pressure valve is opened, pressurized air is filled the middle cavity space of internal piston space and control cavity by cutoff port and air extractor vent, make on the piston, the lower surface area difference is corresponding to diminish, also corresponding the diminishing of preceding more amount of emergency relay valve air extractor duct air pressure, after the extremely short time, after pressurized air is full of the middle cavity space of internal piston space and control cavity by cutoff port and air extractor vent, on the piston, the lower surface area difference becomes 0, the preceding more amount of the air extractor duct air pressure of emergency relay valve is 0, the air extractor duct air pressure of emergency relay valve is pressed with the control implication and is equated, so just can make air extractor duct air pressure is 0 from certain preceding more amount of more preceding measuring, realize dynamical equilibrium, solved the problem that trailer braking protection valve lags behind tractor truck effectively.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the upward view of Fig. 1.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, be automobile emergency relay valve assembly of the present utility model, be made of upper valve body 4 and following valve body 9, upper valve body 4 is provided with admission port 41 and two control mouths 42, and following valve body 9 is provided with control chamber 92, circulation port 93, exhausr port 94 and four air extractor ducts 95.Be provided with successively from top to bottom in the upper valve body and stop up 1, absorbing pad 2, feedback piston 3, check valve 5, be provided with valve piston 6 in the following valve body, passage 96, with opened by pressure valve 10, control mouth 42 on the upper valve body is communicated with control chamber 92 on the following valve body, the indoor piston 8 that is provided with of control chamber, piston 8 is small top and big bottom stepped hollow piston, ladder 81 and downstairs 82 on the branch, have seal ring 87 on last ladder 81 and the downstairs 82, control chamber 92 is and the cooresponding stepped control chamber of described piston, and be divided into upper chamber 921 by piston 8, middle chamber 922 and lower chambers 923, opened by pressure valve 10 in piston 8 bottoms are provided with valve port 85 and are located at down valve body is connected, described piston 8 upper ends are by pressing plate 7 sealings of band seal ring 86, the bottom is provided with cutoff port 83 and is communicated with the lower chambers 923 of control chamber, and downstairs 82 sidewalls of piston are provided with air extractor vent 84 and are communicated with the middle chamber 922 of control chamber.
The utility model is made as piston 8 stepped, because the effect of cutoff port, make on the piston 8, there is area difference in lower surface, trailer is in the starting stage of braking procedure like this, control implication body enters, piston 8 moves down, the air extractor duct air pressure of emergency relay valve is higher than the control implication and presses, after opened by pressure valve 10 is opened, admission port gas is through check valve 5, valve piston 6, passage 96 and opened by pressure valve 10 enter circulation port, and pressurized air is filled middle cavity 922 spaces of piston 8 inner spaces and control cavity by cutoff port 15 and air extractor vent 16, make on the piston 8, the lower surface area difference is corresponding to diminish, also corresponding the diminishing of preceding more amount of emergency relay valve air extractor duct air pressure, after the extremely short time, after pressurized air is full of middle cavity 922 spaces of piston 8 inner spaces and control cavity by cutoff port 15 and air extractor vent 16, on the piston 8, the lower surface area difference becomes 0, the preceding more amount of the air extractor duct air pressure of emergency relay valve is 0, the air extractor duct air pressure of emergency relay valve is pressed with the control implication and is equated, so just can make air extractor duct air pressure is 0 from certain preceding more amount of more preceding measuring, realize dynamical equilibrium, solved the problem that trailer braking protection valve lags behind tractor truck effectively.
The utility model is applicable to all kinds of trailers and superimposed trailer.
Claims (3)
1, a kind of automobile emergency relay valve assembly, comprise upper valve body (4) and following valve body (9), control mouth (42) on the upper valve body is communicated with control chamber (92) on the following valve body, be provided with piston (8) in the control chamber (92), piston (8) the opened by pressure valve (10) interior with being located at down valve body is connected, it is characterized in that: described piston (8) is small top and big bottom stepped hollow piston, ladder on the branch (81) and downstairs (82), described control chamber (92) is and the cooresponding stepped control chamber of described piston (8), and be divided into upper chamber (921) by piston (8), middle chamber (922) and lower chambers (923), described piston (8) upper end closed, the bottom is provided with cutoff port (83) and is communicated with the lower chambers (923) of control chamber, and the downstairs of piston (82) sidewall is provided with air extractor vent (84) and is communicated with the middle chamber (922) of control chamber.
2, according to the described a kind of automobile emergency relay valve assembly of claim 1, it is characterized in that: described piston (8) upper end is by pressing plate (7) sealing of band seal ring (86).
3, according to the described a kind of automobile emergency relay valve assembly of claim 1, it is characterized in that: the last ladder (81) and the downstairs (82) of described piston (8) are provided with seal ring (87).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014580 CN2818262Y (en) | 2005-09-01 | 2005-09-01 | Emergent relay valve assembly of automotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520014580 CN2818262Y (en) | 2005-09-01 | 2005-09-01 | Emergent relay valve assembly of automotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818262Y true CN2818262Y (en) | 2006-09-20 |
Family
ID=37004311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520014580 Expired - Lifetime CN2818262Y (en) | 2005-09-01 | 2005-09-01 | Emergent relay valve assembly of automotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818262Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716928B (en) * | 2009-11-16 | 2011-06-08 | 浙江万安科技股份有限公司 | Emergency control valve assembly |
| CN101531185B (en) * | 2008-03-12 | 2012-07-11 | 王绿阳 | Multi-bridge emergency synchronous brake valve |
| CN103359101A (en) * | 2013-07-23 | 2013-10-23 | 河北神安汽车部件科技有限公司 | Intermediate emergency relay valve of motor vehicle trailer |
| CN104627156A (en) * | 2014-11-28 | 2015-05-20 | 昌通科技有限公司 | Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof |
-
2005
- 2005-09-01 CN CN 200520014580 patent/CN2818262Y/en not_active Expired - Lifetime
Cited By (6)
| 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 |
| CN101716928B (en) * | 2009-11-16 | 2011-06-08 | 浙江万安科技股份有限公司 | Emergency control valve assembly |
| CN103359101A (en) * | 2013-07-23 | 2013-10-23 | 河北神安汽车部件科技有限公司 | Intermediate emergency relay valve of motor vehicle trailer |
| CN103359101B (en) * | 2013-07-23 | 2015-07-01 | 河北神安汽车部件科技有限公司 | Intermediate emergency relay valve of motor vehicle trailer |
| CN104627156A (en) * | 2014-11-28 | 2015-05-20 | 昌通科技有限公司 | Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof |
| CN104627156B (en) * | 2014-11-28 | 2017-04-12 | 昌通科技有限公司 | Three-level pressure transformation relay valve and three-level pressure transformation relay valve kit thereof |
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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 |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150901 Granted publication date: 20060920 |
|
| EXPY | Termination of patent right or utility model |