CN201872746U - Relay valve - Google Patents
Relay valve Download PDFInfo
- Publication number
- CN201872746U CN201872746U CN2010205754939U CN201020575493U CN201872746U CN 201872746 U CN201872746 U CN 201872746U CN 2010205754939 U CN2010205754939 U CN 2010205754939U CN 201020575493 U CN201020575493 U CN 201020575493U CN 201872746 U CN201872746 U CN 201872746U
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- CN
- China
- Prior art keywords
- valve
- piston
- air pressure
- air cavity
- pressure
- 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
The utility model discloses a relay valve which comprises a valve body assembly, a valve cap, a piston, and a valve arranged on the valve body assembly, wherein a first air cavity and a control air pressure inlet communicated with the first air cavity are formed between the valve cap and the piston; a second air cavity and an input air pressure inlet providing air pressure on the second air cavity are formed between the valve body assembly and the piston; and the improvement of the utility model lies in that a solenoid valve is fixed on the valve cap, and a spring is arranged between a valve rod of the solenoid valve and the piston. The relay valve has the advantages that through the additional arrangement of a pressure spring and the solenoid valve adjusting the elasticity of the pressure spring on the piston, the output air pressure is larger than the control air pressure, the formative time of the pressure of a rear brake wheel cylinder is shortened, and the braking strength is increased; and the structure is simple, and the cost is low.
Description
Technical field
The utility model relates to a kind of Car Relay Valve.
Background technology
Relay valve is the effect that is used for shortening the brake response time handled in the gas circuit and pressure setting time.Relay valve is used for the long pipe runs end, and the pressurized air of air receiver is full of compressed air brake cylinder, and the control air pressure of relay valve comes from master brake cylinder.Master brake cylinder is long to the relay valve pipeline, and control air pressure will lose part air pressure in transmission, makes that the control air pressure of the relay valve be used for rear brake is longer setting time; The braking pressure of front brake directly comes from master brake cylinder, and the tracheae pipeline is shorter, and air pressure is set up fast, loses little.So act on the relay valve on the heavy goods vehicles, especially rear braking subpump pressure is longer setting time when overload, hypervelocity, sluggish.
Summary of the invention
The utility model is for solving prior art in use, and relay valve rear braking subpump pressure when heavy duty is longer setting time, and defectives such as sluggish provide a kind of new relay valve.
The technical scheme that the utility model solves existing issue is: a kind of relay valve, comprise valve body assembly, valve gap, piston, be arranged at valve on the valve body assembly, the control air pressure inlet that is provided with first air cavity between described valve gap and the piston and communicates with first air cavity, be provided with second air cavity between valve body assembly and the piston and supply with the input air pressure inlet of the second air cavity air pressure, as improvement of the present utility model, be fixed with electromagnetic valve on the described valve gap, be provided with spring between the valve rod of electromagnetic valve and the piston.
As further improvement of the utility model, spring one end is connected with the electromagnetic valve valve rod, and the other end and piston join naturally.
The utility model compared with prior art, its beneficial effect is, by increasing stage clip and regulate the electromagnetic valve of stage clip elastic force on piston, the air pressure that makes output is greater than control air pressure, shortens rear braking subpump pressure setting time, increases the braking brake dynamics.The utility model simple in structure and low in cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, the implementation case comprises: valve body assembly 1, valve gap 2, piston 3, be arranged at valve 11 on the valve body assembly 1, the control air pressure inlet 4 that is provided with first air cavity 21 between valve gap 2 and the piston 3 and communicates with first air cavity 21, enter the mouth 5 input air pressures inlet 5 of the input air pressure that is provided with second air cavity 22 between valve body assembly 1 and the piston 3 and supplies with second air cavity, 22 air pressure is connected with second air cavity 22 by valve 51, be fixed with electromagnetic valve 6 on the valve gap 2, be provided with spring 62 between the valve rod 61 of electromagnetic valve 6 and the piston 3.Spring 62 1 ends are connected with electromagnetic valve 6 valve rods 62, and the other end and piston 3 join naturally.
During the vehicle heavy duty, electromagnetic valve 6 work, valve rod 61 actions of electromagnetic valve 6, compression spring 62, force in piston 3, piston 3 is under the effect of control air pressure and spring 62 pressure, and piston 3 moves down fast, opens valve 6, input air pressure enters second air cavity 22, the back forms output pressure, and output pressure is greater than control air pressure at this moment, and relay valve plays amplification.
Claims (2)
1. relay valve, comprise valve body assembly, valve gap, piston, be arranged at valve on the valve body assembly, the control air pressure inlet that is provided with first air cavity between described valve gap and the piston and communicates with first air cavity, be provided with second air cavity between valve body assembly and the piston and supply with the input air pressure inlet of the second air cavity air pressure, it is characterized in that: be fixed with electromagnetic valve on the described valve gap, be provided with spring between the valve rod of electromagnetic valve and the piston.
2. relay valve as claimed in claim 1 is characterized in that: spring one end is connected with the electromagnetic valve valve rod, and the other end and piston join naturally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205754939U CN201872746U (en) | 2010-10-22 | 2010-10-22 | Relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205754939U CN201872746U (en) | 2010-10-22 | 2010-10-22 | Relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201872746U true CN201872746U (en) | 2011-06-22 |
Family
ID=44160678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205754939U Expired - Fee Related CN201872746U (en) | 2010-10-22 | 2010-10-22 | Relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201872746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI557348B (en) * | 2014-08-29 | 2016-11-11 | 鉅力精控股份有限公司 | Valve rod assembly |
| CN111003479A (en) * | 2019-12-20 | 2020-04-14 | 济南海能仪器股份有限公司 | Feeding slide block and full-automatic sample feeding device |
-
2010
- 2010-10-22 CN CN2010205754939U patent/CN201872746U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI557348B (en) * | 2014-08-29 | 2016-11-11 | 鉅力精控股份有限公司 | Valve rod assembly |
| CN111003479A (en) * | 2019-12-20 | 2020-04-14 | 济南海能仪器股份有限公司 | Feeding slide block and full-automatic sample feeding device |
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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: 20110622 Termination date: 20131022 |