CN100595097C - Synchronous valve in use for brake system - Google Patents
Synchronous valve in use for brake system Download PDFInfo
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- CN100595097C CN100595097C CN200610040313A CN200610040313A CN100595097C CN 100595097 C CN100595097 C CN 100595097C CN 200610040313 A CN200610040313 A CN 200610040313A CN 200610040313 A CN200610040313 A CN 200610040313A CN 100595097 C CN100595097 C CN 100595097C
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- control gas
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
A synchronous valve for brake system has a valve body with air inlet, air outlet and control opening, an air inlet valve in said air inlet and opened when the car is running, a piston in said controlopening for controlling said air inlet valve and several sealing rings. Said piston has an internal air channel for exhausting the residual air from braking tube, a screw plug for regulating its top limit position, and a restoring spring under its bottom.
Description
Technical field
The present invention relates to the synchronous valve that a kind of motor vehicle braking system is used, especially relate to a kind of synchronous valve of heavy motor vehicle use for brake system.
Background technology
As everyone knows, heavy goods vehicles is the ubiquitous weak point of tractor truck brake system especially, be exactly because vehicle body is long, brake line is long, thereby cause preceding, in (back) sedan-chair and trailer brake asynchronous, stopping distance is long, braking retardation, serious meeting causes that vehicle is overturned, the tragedy of car crash, brings immeasurable loss to lives and properties.Chinese patent CN89108201.8. discloses a kind of vehicle air brake systems and valve thereof, wherein discloses a kind of synchronous valve, and he has an air supply opening, an air taking port and a control mouth.The synchronous piston of socket retracing spring is arranged in the control mouthful end cylinder body, and the synchronous piston lower end is a needle.The air taking port end has bypass valve, and the needle under the synchronous piston withstands on the valve of bypass valve.Also be provided with the breathing pipe of bypass atmosphere in control mouthful end cylinder body synchronous piston retracing spring position.Its weak point is after taking braking, exists certain residual air to drain not fall in air supply opening and the brake repair room all the time.What seriously cause whole brake system and synchronous valve can not safe and reliable work.
Summary of the invention
The technical problem to be solved in the present invention is, for the weak point of the synchronous valve that remedies existing heavy goods vehicles use for brake system, and provides a kind of synchronous valve that starts the heavy goods vehicles use for brake system of quick, safe and reliable work.
Another object of the present invention provides the synchronous valve of the adjustable heavy goods vehicles use for brake system of a kind of synchronous piston stroke.
The present invention solves the problems of the technologies described above to adopt following technical scheme: 1, a kind of synchronous valve of use for brake system, comprise valve body, and admission port, air extractor duct and control gas port are arranged on the valve body; In admission port one end valve body, air inlet valve is set; During driving, inlet open, admission port and air extractor duct connect; The piston of control air inlet valve work is set in control gas port one end valve body, the up stroke stop of piston is spacing by there being scalable to be tightened on the control gas port plug screw of control gas port end, on the step, piston base compresses retracing spring with control gas port end valve body bottom to the down stroke stop of piston in control gas port end valve body; It is characterized in that: on valve body, adapt to the piston reset spring position exhausr port also is set, in piston, also be provided with air passage, during driving, air passage and air extractor duct are closed, during Parking, air passage and air extractor duct and exhausr port connect, and described admission port and air receiver join, the control gas port is connected with the hand braking valve air extractor duct, and air extractor duct and trailer braking valve admission port join.
Described air inlet valve is that the admission port plug screw holds out against valve by retracing spring in valve body admission port one end.
For making the retracing spring installing and locating accurate, spring perch is set at admission port plug screw and retracing spring connection place.
For making synchronous valve that good air-tightness be arranged, be provided with seal ring at control gas port plug screw, admission port plug screw and valve body and piston and valve body contact site.
Good effect of the present invention is: because air passage is set in piston, when brake off, connect air extractor duct and exhausr port, in time drain residual air in the brake pipe, make the safe and reliable work of whole brake system, but and in the control gas port plug screw up-down adjustment of controlling the gas port end, the scalable that the stroke of piston also becomes, working accurately and reliably and regulating and bring convenience for synchronous valve.This valve guaranteed to pull with tractor truck braking energy source (high pressure gas) synchronously, guaranteed to pull with tractor truck produce equality strength synchronously, with the service brake of constant velocity, improved the deceleration and stopping performance of car load.Many advantages such as that this valve has is simple in structure, cost is low, easy to manufacture, good reliability.
Further specify the present invention below in conjunction with embodiment and accompanying drawing.
Description of drawings
Fig. 1 is an organigram of the present invention.
Among the figure: 1. control gas port plug screw, 2. seal ring, 3. valve body, 4. seal ring, 5. compress retracing spring, 6. seal ring, 7. piston, 8. valve, 9. step, 10. retracing spring, 11. seal rings, 12. admission port plug screws, 13. air passages, 14. control gas ports, 15. exhausr ports, 16. admission ports, 17. air extractor ducts.
The specific embodiment
In Fig. 1, a kind of synchronous valve comprises valve body 3, and admission port 16, air extractor duct 17 and control gas port 14 are arranged on the valve body 3; In admission port 16 1 end valve bodies 3, air inlet valve is set; Glancing impact, inlet open, admission port 16 connects with air extractor duct 17; The piston 7 of control air inlet valve work is set in control gas port 14 1 end valve bodies 3, the up stroke stop of piston 7 is spacing by there being scalable to be tightened on the control gas port plug screw 1 of control gas port end, on the step 9, piston 7 bottoms compress retracing spring 5 with control gas port end valve body 3 bottoms to the down stroke stop of piston 7 in control gas port end valve body 3; Adapt to piston 7 retracing springs 10 positions on valve body 3 exhausr port 15 also is set, also be provided with air passage 13 in piston 7, during driving, air passage 13 is closed with air extractor duct 17, and during Parking, air passage 13 connects with air extractor duct 17 and exhausr port 15.
Described air inlet valve is that admission port plug screw 12 holds out against valve 8 by retracing spring 10 in valve body 3 admission ports 16 1 ends.Valve is a rubber valve.
For making retracing spring 10 installing and locating accurate, spring perch is set in admission port plug screw 12 and retracing spring 10 connection places.
For making synchronous valve that good air-tightness be arranged, be provided with seal ring with valve body 3 and piston 7 with valve body 3 contacts site at control gas port plug screw 1, admission port plug screw 12.Seal ring is " O " shape seal ring preferably.
Synchronous valve is annexation in brake system: synchronous valve admission port and air receiver join, and the control gas port is connected with hand braking valve (original a kind of valve in the system) air extractor duct, and air extractor duct and trailer braking valve admission port join.
The static position relation: two " O " shape seal rings 4,6 are contained on the piston piece 7, and rubber valve 8 pastes on the valve port face of valve body 3, has guaranteed the sealing property of synchronous valve off working state.Admission port does not communicate with air extractor duct.
Dynamic duty process: during driving, enter into the top of piston from the pressurized air of hand braking valve by the control gas port, make piston rod promote rubber valve and move down, open valve, the air pressure of air receiver just flows to the trailer braking valve of back by admission port through air extractor duct, enters the trailer air receiver.During Parking, during brake off, because the air pressure of piston top descends, spring 5 makes rubber valve 8 together with moving valve-off on the piston rod.Like this, the air pressure of brake repair room can enter exhausr port and bleed off through air extractor duct, the middle aperture air passage 13 of piston rod.
Principle of work: during driving, heavily blocking the novel automobile brake system with HFC (ZK) is example, when admission port air pressure is 882 ± 20kPa (system works pressure), control gas port atmospheric pressure value is 520 ± 50kPa, rubber valve is opened, and air extractor duct communicates with admission port, in time provides source of the gas to trailer braking valve, to the inflation of compressed air brake chamber, implement braking.When control gas port air pressure was reduced to 365 ± 25kPa, spring made rubber valve together with moving on the piston, and rubber valve is closed, and the pressurized air in the pipeline can enter exhausr port and bleed off through air extractor duct, the middle aperture of piston like this.
Claims (5)
1, a kind of synchronous valve of use for brake system comprises valve body (3), and admission port (16), air extractor duct (17) and control gas port (14) are arranged on the valve body (3); In admission port (16) one end valve bodies (3), air inlet valve is set; During driving, inlet open, admission port (16) connects with air extractor duct (17); The piston (7) of control air inlet valve work is set in control gas port (14) one end valve bodies (3), the up stroke stop of piston (7) is spacing by there being scalable to be tightened on the control gas port plug screw (1) of control gas port end, on the step (9), piston (7) bottom compresses retracing spring (5) with control gas port end valve body (3) bottom to the down stroke stop of piston (7) in control gas port end valve body (3); It is characterized in that: on valve body (3), adapt to piston (7) and compress retracing spring (5) position exhausr port (15) also is set, in piston (7), also be provided with air passage (13), during driving, air passage (13) is closed with air extractor duct (17), during Parking, air passage (13) connects with air extractor duct (17) and exhausr port (15), and described admission port (16) joins with air receiver, control gas port (14) is connected with the hand braking valve air extractor duct, and air extractor duct (17) joins with the trailer braking valve admission port.
2, the synchronous valve of use for brake system according to claim 1 is characterized in that: described air inlet valve is that admission port plug screw (12) holds out against valve (8) by retracing spring (10) in valve body (3) admission port (16) one ends.
3, the synchronous valve of use for brake system according to claim 2 is characterized in that: in admission port plug screw (12) and retracing spring (10) connection place spring perch is set.
4, the synchronous valve of use for brake system according to claim 1 and 2 is characterized in that: be provided with seal ring with valve body (3) and piston (7) with valve body (3) contact site at described control gas port plug screw (1), admission port plug screw (12).
5, the synchronous valve of use for brake system according to claim 4 is characterized in that: described seal ring is " O " shape seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610040313A CN100595097C (en) | 2006-05-15 | 2006-05-15 | Synchronous valve in use for brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610040313A CN100595097C (en) | 2006-05-15 | 2006-05-15 | Synchronous valve in use for brake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1958360A CN1958360A (en) | 2007-05-09 |
| CN100595097C true CN100595097C (en) | 2010-03-24 |
Family
ID=38070255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610040313A Expired - Fee Related CN100595097C (en) | 2006-05-15 | 2006-05-15 | Synchronous valve in use for brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100595097C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062234B (en) * | 2010-12-22 | 2012-09-05 | 芜湖盛力制动有限责任公司 | Matching valve of heavy truck braking system |
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2006
- 2006-05-15 CN CN200610040313A patent/CN100595097C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1958360A (en) | 2007-05-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUHU SHENGLI TECHNOLOGY CO., LTD Free format text: FORMER NAME: SHENGLI BRAKE CO., LTD., WUHU |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 241003 No. 17 West Mountain Road, hi tech Industrial Development Zone, Anhui, Wuhu Patentee after: Wuhu Shengli Technology Shares Co., Ltd. Address before: 241000 Anhui province Wuhu City Rehabilitation Road No. 24 Patentee before: Shengli Brake Co., Ltd., Wuhu |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20160515 |