CN2928615Y - Multiple axil back pressure emergency synchronous brake valve - Google Patents
Multiple axil back pressure emergency synchronous brake valve Download PDFInfo
- Publication number
- CN2928615Y CN2928615Y CN 200620087553 CN200620087553U CN2928615Y CN 2928615 Y CN2928615 Y CN 2928615Y CN 200620087553 CN200620087553 CN 200620087553 CN 200620087553 U CN200620087553 U CN 200620087553U CN 2928615 Y CN2928615 Y CN 2928615Y
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- valve
- piston
- emergency
- valve body
- back pressure
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
A multiple backpressure type emergency and synchronous brake valve belongs to breaking device of vehicle field comprising a upper valve body (6), a lower valve body (7), pistons (8), a emergency mobile forces piston (11), valves (13), valve holders (14), liners (15), characterized in that the piston (8) is installed on the upper part of the upper valve body (7), the mental is installed with a sepal disk (9), the middle lower is installed in the upper part of the emergency mobile forces piston (11), and the lower valve body (7) is installed with a gas admitting structure, valves (13) and valve holders (14) are installed in the lower end of the emergency mobile forces piston (11), the emergency mobile forces piston (11) is installed in the upper valve body (7) through the liner (15). The utility model has advantages of matching to different vehicle braking forces, braking fast, vacating fast and so on.
Description
Technical field
Many bridges back pressure type emergency synchronous brake valve belongs to the vehicle braking device field, specifically refers to be applied to many bridges trailer, superimposed trailer vehicle braked device.
Background technology
At present in the vehicle of the many bridges trailer that uses emergency brake valve, superimposed trailer, the normal employing by two or more emergency relay valve of dress, make the braking force between bridge and bridge tire not of uniform size, cause problems such as vehicle tyre locking, wear on tyres be irregular, manufacturing cost, use and service expenditure are strengthened.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of and be contained on trailer or the superimposed trailer, have many bridges back pressure type emergency synchronous brake valve that brake is fast, releasing is fast.
The technical scheme that its technical matters that solves the utility model adopts is: this many bridges back pressure type emergency synchronous brake valve, comprise upper valve body, following valve body, piston, emergency piston, valve, valve seat, lining is characterized in that: piston is installed in down the top of valve body, is with outward every dish, middle lower portion places in the top of emergency piston, be provided with admission gear on the valve body down, mounted valve and valve seat in the emergency piston lower port, emergency piston is installed in down in the valve body by lining.Main effect every dish is the ratio of the area up and down of adjusting piston, and it is that emergency piston can be moved up and down that lining mainly acts on.
Admission gear comprises admission port and air supply opening, and admission port is arranged on down a side of valve body, and air supply opening is arranged on down the opposite side of valve body.
Piston is a two-diameter piston, up big and down small structure.Produce area difference, make the output area adjustable.
Admission port is built-in with adaptor union, nonreturn valve core, check valve and oblique induction opening, nonreturn valve core and adaptor union are split type, the nonreturn valve core outer periphery is provided with seal ring, and tiltedly the induction opening import links to each other with nonreturn valve core, export with following valve body and emergency piston between pressure gap A communicate.The air pressure that induction opening comes arrives A, the B chamber of emergency piston respectively by nonreturn valve core, check valve, oblique induction opening.
The anti-true hole of piston is adopted built-in.
The sealing surface of piston, emergency piston, nonreturn valve core all adopts the R face.Improve the stability and the reliability of product.
Gapped chamber F between valve and the valve seat.
Following valve body has six downward delivery ports of array.
Compared with prior art, the beneficial effect that many bridges back pressure type emergency synchronous brake valve of the present utility model is had: since down be provided with piston above the valve body, every dish, can be by come the ratio of the upper and lower area of adjusting piston every dish; Side-inlet at following valve body is provided with built-in check valve, reaches oblique induction opening, guarantees rapid to the air supply opening air feed; Below following valve body, be provided with emergency piston, lining, make emergency piston upper and lower mobile; The dress valve sealing face adopts plane polysulphide rubbers structure in the emergency piston, and valve improves product stability and reliability with filling air in the chamber F of valve seat gap.Thereby guarantee that many bridges back pressure type emergency synchronous brake valve can be matched with different vehicle braking force size, have characteristics such as brake is fast, releasing is fast.
Description of drawings
Fig. 1 is many bridges of the utility model back pressure type emergency synchronous brake valve structural representation.
Wherein: 1 admission port, 2 air extractor ducts, 3 exhausr ports, 4 controls mouthful 7 times valve bodies of 5 air supply openings, 6 upper valve bodies, 8 pistons 9 are every dish 10 oblique induction opening 11 emergency pistons 12 valve springs 13 valves 14 valve seats 15 linings 16 spring perches 17 dustproof sheets 18 springs 19 check valves 20 seal rings 21 nonreturn valve cores 22 adaptor union A pressure gap B inlet chamber C air inlet clearance D exhaust clearance E air cavitys.
Fig. 1 is the most preferred embodiment of many bridges of the utility model back pressure type emergency synchronous brake valve, is described further below in conjunction with 1 pair of many bridge of the utility model of accompanying drawing back pressure type emergency synchronous brake valve:
The specific embodiment
With reference to accompanying drawing 1: this many bridges back pressure type emergency synchronous brake valve is by admission port 1, air extractor duct 2, exhausr port 3, control mouth 4, air supply opening 5 (general designation air supply opening 1-2 in the industry), upper valve body 6, following valve body 7, piston 8, every dish 9, oblique induction opening 10, emergency piston 11, valve spring 12, valve 13, valve seat 14, lining 15, spring perch 16, dustproof sheet 17, spring 18, check valve 19, seal ring 20, nonreturn valve core 21, adaptor union 22, pressure gap A, inlet chamber B, the air inlet clearance C, exhaust clearance D, chamber E forms.Control mouth 4 is in the side of upper valve body 6, and piston 8 is installed in down the top of valve body 7, and piston 8 is a two-diameter piston, up big and down small structure.Be with outward every dish 9, middle lower portion places in the top of emergency piston 11, be provided with admission gear on the valve body 7 down, mounted valve 13 and valve seat 14 in emergency piston 11 lower port, valve 13 seals by seal ring with valve seat 14, valve seat 14 outer mounted valve springs 12, and emergency piston 11 is installed in down in the valve body 7 by lining 15, lining 15 is installed in the top of spring perch 16, and dustproof sheet 17 is installed at below exhausr port 3 places of spring perch 16.Admission gear comprises admission port 1 and air supply opening 5, and admission port 1 is arranged on down a side of valve body, and air supply opening 5 is arranged on down the opposite side of valve body.Admission port 1 is built-in with adaptor union 22, nonreturn valve core 21, check valve 19 and oblique induction opening 10, nonreturn valve core 21 is split type with adaptor union 22, nonreturn valve core 21 outer periphery are provided with seal ring 20, tiltedly induction opening 10 imports link to each other with nonreturn valve core 21, export with following valve body 7 and emergency piston 11 between pressure gap A communicate.Piston 8 anti-true holes are adopted built-in.The sealing surface of piston 8, emergency piston 11, nonreturn valve core 22 all adopts the R face.Gapped chamber F between valve 13 and the valve seat 14.Following valve body 7 has six downward delivery ports 2 of array.
Principle of work and working process are as follows: the pressurized air of coming from the tractor-trailer supply air line enters from admission port 1 through trailer supply air line adaptor union 22, enters the B chamber by nonreturn valve core 21, check valve 19, and charges into the trailer air receiver through C chamber and air supply opening 5.Load anxious piston 11, lining 15 in the following valve body 7, emergency piston 11 can upper and lowerly be moved, when the Pneumatic pipe cleaner of admission port 1 is crossed the top that oblique induction opening 10 arrives emergency piston 11, under the inflation pressure effect, emergency piston 11 moves down, thereby piston 8 and emergency piston 11 are broken away from, and air inlet clearance C at this moment is closed, and exhaust clearance D is opened.Air extractor duct 2 air pressure are through exhausr port 3 exhaust to atmospheres.Between upper valve body 6 and following valve body 7, interior dress piston 8, every dish 9, piston 8 can be by the ratio that comes the upper and lower area of adjusting piston 8 every dish 9.When the gas pressure of control mouthfuls 4 top at piston 8, piston 8 is moved down, close exhaust clearance D, open the air inlet clearance C, pressurized air from air supply opening 5 through the air inlet clearance C to air extractor duct 2, the gas pressure of air extractor duct 2 below the less piston 8 of bottom area, therefore, the very fast growth of output pressure.Simultaneously, the air pressure in E chamber communicates with exhausr port 3 through piston 8, exhaust to atmosphere; When the air pressure of control mouth 4 was removed, the air pressure of air extractor duct 2 made on the piston 8 and moves to the top, opens exhaust clearance D, closes the air inlet clearance C, and air extractor duct 2 air pressure are through valve 13 and exhausr port 3 exhaust to atmospheres.Under the situation that tractor truck breaks off relations or supply air line breaks, check valve 19 is closed under the effect of air supply opening 5 pressure, air supply opening 5 air pressure impassabitity admission ports 1 are discharged, emergency piston 11 moves under the effect of air supply opening 5 pressure simultaneously, close exhaust clearance D, open the air inlet clearance C, the pressurized air of air supply opening 5 enters compressed air brake cylinder through the air inlet clearance C, thereby makes the trailer autobrake.
Glancing impact is controlled through trailer from the pressurized air that the tractor-trailer pilot piping comes.Pipeline gas joint enters from control mouthfuls 4, acts on the top of piston 8, and piston 8 is moved down, and closes exhaust clearance D, opens the air inlet clearance C, pressurized air from air supply opening 5 through the air inlet clearance C to air extractor duct 2.The gas pressure of air extractor duct 2 below the less piston 8 of bottom area, therefore, the very fast growth of output pressure.Simultaneously, the air pressure in E chamber communicates with exhausr port 3 through piston 8, exhaust to atmosphere.
During brake off, control mouthful 4 exhausts, the air pressure of air extractor duct 2 makes on the piston 8 and moves to the top, opens exhaust clearance D, closes the air inlet clearance C, and air extractor duct 2 air pressure are through valve and exhausr port 3 exhaust to atmospheres.
Under the situation that tractor truck breaks off relations or supply air line breaks, admission port 1 exhaust, emergency piston 11 moves under the effect of air supply opening 5 pressure, close exhaust clearance D, open the air inlet clearance C, the pressurized air of air supply opening 5 enters compressed air brake cylinder through the air inlet clearance C, thereby makes the trailer autobrake.
Claims (8)
1, many bridges back pressure type emergency synchronous brake valve, comprise upper valve body (6), following valve body (7), piston (8), emergency piston (11), valve (13), valve seat (14), lining (15), it is characterized in that: piston (8) is installed in down the top of valve body (7), be with outward every dish (9), middle lower portion places in the top of emergency piston (11), be provided with admission gear on the valve body (7) down, mounted valve (13) and valve seat (14) in emergency piston (11) lower port, emergency piston (11) is installed in down in the valve body (7) by lining (15).
2, many bridges back pressure type emergency synchronous brake valve according to claim 1 is characterized in that: admission gear comprises admission port (1) and air supply opening (5), and admission port (1) is arranged on down a side of valve body, and air supply opening (5) is arranged on down the opposite side of valve body.
3, many bridges back pressure type emergency synchronous brake valve according to claim 1 is characterized in that: piston (8) is a two-diameter piston, up big and down small structure.
4, many bridges back pressure type emergency synchronous brake valve according to claim 2, it is characterized in that: admission port (1) is built-in with adaptor union (22), nonreturn valve core (21), check valve (19) and oblique induction opening (10), nonreturn valve core (21) is split type with adaptor union (22), nonreturn valve core (21) outer periphery is provided with seal ring (20), tiltedly induction opening (10) import links to each other with nonreturn valve core (21), export with following valve body (7) and emergency piston (11) between pressure gap (A) communicate.
5, many bridges back pressure type emergency synchronous brake valve according to claim 3 is characterized in that: the anti-true hole of piston (8) is adopted built-in.
6, the described many bridges back pressure type of root pick claim 1 emergency synchronous brake valve, it is characterized in that: the sealing surface of piston (8), emergency piston (11), nonreturn valve core (22) all adopts (R face.
7, many bridges back pressure type emergency synchronous brake valve according to claim 1 is characterized in that: gapped chamber (F) between valve (13) and the valve seat (14).
8, many bridges back pressure type emergency synchronous brake valve according to claim 1, it is characterized in that: following valve body (7) has six downward delivery ports of array (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087553 CN2928615Y (en) | 2006-08-01 | 2006-08-01 | Multiple axil back pressure emergency synchronous brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087553 CN2928615Y (en) | 2006-08-01 | 2006-08-01 | Multiple axil back pressure emergency synchronous brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2928615Y true CN2928615Y (en) | 2007-08-01 |
Family
ID=38307002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620087553 Expired - Fee Related CN2928615Y (en) | 2006-08-01 | 2006-08-01 | Multiple axil back pressure emergency synchronous brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2928615Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927762A (en) * | 2010-09-27 | 2010-12-29 | 屠乐贤 | Three-axle relay valve |
| CN102267446A (en) * | 2011-05-11 | 2011-12-07 | 淄博亿伟汽车科技有限公司 | Axle-control integrated ABS (Antilock Brake System) device |
| CN101531185B (en) * | 2008-03-12 | 2012-07-11 | 王绿阳 | Multi-bridge emergency synchronous brake valve |
| CN108944887A (en) * | 2017-05-18 | 2018-12-07 | 张荣军 | Stepless voltage regulation water-drainage antifreezing emergency relay valve |
-
2006
- 2006-08-01 CN CN 200620087553 patent/CN2928615Y/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN101927762A (en) * | 2010-09-27 | 2010-12-29 | 屠乐贤 | Three-axle relay valve |
| CN102267446A (en) * | 2011-05-11 | 2011-12-07 | 淄博亿伟汽车科技有限公司 | Axle-control integrated ABS (Antilock Brake System) device |
| CN108944887A (en) * | 2017-05-18 | 2018-12-07 | 张荣军 | Stepless voltage regulation water-drainage antifreezing emergency relay 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 |