CN201703370U - Flow control type three-axle synchronous quick-release emergency relay valve - Google Patents
Flow control type three-axle synchronous quick-release emergency relay valve Download PDFInfo
- Publication number
- CN201703370U CN201703370U CN2009202691085U CN200920269108U CN201703370U CN 201703370 U CN201703370 U CN 201703370U CN 2009202691085 U CN2009202691085 U CN 2009202691085U CN 200920269108 U CN200920269108 U CN 200920269108U CN 201703370 U CN201703370 U CN 201703370U
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- valve
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- quick
- air inlet
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Abstract
A flow control type three-axle synchronous quick-release emergency relay valve belongs to the technical field of automobile brake and comprises an upper valve body 1, a lower valve body 2, an emergency piston 3, a control piston 5, a brake valve 6 and quick-release valves 8. The flow control type three-axle synchronous quick-release emergency relay valve is characterized in that an emergency piston 3 and an air inlet one-way valve 4 are mounted in the upper valve body 1, the upper valve body 1 is provided with an air inlet 12 and a control opening 14, the three quick-release valves are disposed on three sides of the lower valve body 2, air inlet holes of the three quick-release valves are large, medium and small respectively, air flow rates of the three air inlet holes are also large, medium and small respectively, and brake forces of front, middle and rear axles of a three-axle semitrailer are adjusted by aid of different flow rates of the three air inlet holes so as to synchronize brake of the three axles.
Description
Technical field:
The utility model relates to a kind of flow controlled three bridges and puts emergency relay valve synchronously soon,, belong to the automobile brake technical field, specifically refer to be applied to the brake gear of three bridge semitrailer vehicles.
Background technology:
Produce the semi-mounted three bridge cars that use at present, because styling design all is that preceding high back is low, before the trailer, in, the tire of back axle is different with the load weight with ground-surface area of contact, with respect to jackshaft, the propons load is light, the back axle load is heavy, and the brake pressure in the several brakes of the relay valve chamber, single chamber of institute's adapted is identical, and vehicle is when the deadhead operation drag, before, in, back axle is with identical pneumatic brake, propons, the jackshaft of stopping again, rear brake back axle can appear stopping earlier, cause propons or preceding jackshaft brake locking, the brake of three bridges is asynchronous, seriously holds in the palm the emery wheel tire, causes very big economic loss to the car owner.
The utility model content:
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of and can make the brake of three bridges synchronously, does not hold in the palm the emery wheel tire, and brake is fast, removes fast flow controlled three bridges and puts emergency relay valve synchronously soon.
The technical scheme that its technical matters that will solve the utility model adopts is: these flow controlled three bridges are put emergency relay valve synchronously soon and are comprised: upper valve body, following valve body, emergency piston, the admission port check valve, control plunger, braking valve, valve seat, rapid release valve, the rapid release valve sheet, it is characterized in that emergency piston and breather check valve are installed in the upper valve body, can move forward and backward, upper valve body is provided with admission port and control mouth, control plunger is installed in down in the valve body, the control plunger bottom is equipped with braking valve and valve seat, control plunger is up big and down small two-diameter piston, can move up and down, following valve body one side is provided with trailer air receiver interface, following valve body three sides are provided with three rapid release valves, the induction opening of three rapid release valves divides big, in, little, because of three induction openings have greatly, in, little branch is so the airshed of three induction openings also has greatly, in, little.The utility model utilizes the flow difference of three induction openings, solves the asynchronous problem of brake that three bridges are caused because of the load difference before, during and after the trailer.Admission port is big, and relative discharge is just big, connects back axle, air inlet is young, and flow is just little, connects propons, admission port is moderate, and flow is moderate, connects jackshaft, the utility model is by the flow difference of three air extractor ducts, and the braking strength of bridge before, during and after adjusting makes the brake of three bridge superimposed trailers, three bridges synchronously, no longer hold in the palm the emery wheel tire, descend valve body to be provided with rapid release valve in addition, have brake soon, remove fast characteristics.
Description of drawings:
Fig. 1 is an External view of the present utility model.
Fig. 2 is the utility model A-A section-drawing.
Fig. 3 is the utility model B-B section-drawing.
Wherein upper valve body 1, down valve body 2, emergency piston 3, admission port check valve 4, control plunger 5, braking valve 6, valve seat 7, rapid release valve 8, rapid release valve sheet 9, balance spring 10, seal ring 11, admission port 12, trailer air receiver interface 13, control mouthfuls 14, control air cavity 15, braking air cavity 16, rapid release valve admission port 17, brake air extractor duct 18, exhausr port 19, rapid release valve exhausr port 20.
Referring to Fig. 1-3 appearance forrns of the present utility model and internal structure are shown respectively, put emergency relay valve synchronously soon below in conjunction with flow controlled three bridges of Fig. 1-3 pair the utility model and be described further.
The specific embodiment:
Principle of work and working process are as follows:
Main car is connected with trailer, main car loading line is connected with the utility model admission port 12, main car pilot piping is connected with control mouth 14, main car is inflated to trailer, air pressure enters admission port 12, enter trailer air receiver interface 13 through admission port check valve 4, enter the trailer air receiver, vehicle is in driving process, when needing drag, chaufeur is stepped on brake pedal, the control air pressure of main car enters control mouth 14 of the present utility model through pilot piping, control of access air cavity 15, control plunger 5 controlled air pressure move down, push braking valve 6 simultaneously open, compression gas-pressure in the trailer air receiver interface 13 is from braking air cavity 16 to rapid release valve admission port 17,9 reaches of air pressure impulsion rapid release valve sheet, the air extractor duct of rapid release valve 8 is closed, air pressure respectively from the brake air extractor duct 18 to the trailer braking protection valve wheel cylinder, by trailer braking protection valve wheel cylinder control brake, when the chaufeur loosen the brake, the Exhaust Open of main car master cylinder, the Pneumatic pipe cleaner of control air cavity 15 is crossed control mouthfuls 14 and is emitted from main car master cylinder, moves braking valve 6 on the control plunger 5 and closes, and the wheel cylinder internal gas pressure moves behind brake air extractor duct 18 impulsion rapid release valve sheets 9, the air pressure of braking simultaneously in the air cavity 16 is emitted from exhausr port 19, air pressure in the wheel cylinder is emitted fast from rapid release valve exhausr port 20, and brake is removed, normal vehicle operation.
Claims (2)
1. flow controlled three bridges are put emergency relay valve synchronously soon and are comprised upper valve body (1), following valve body (2), emergency piston (3), control plunger (5), braking valve (6), rapid release valve (8), it is characterized in that emergency piston (3) and breather check valve (4) are installed in the upper shell (1), upper shell (1) is provided with admission port (12) and control mouthful (14).
2. flow controlled three bridges according to claim 1 are put emergency relay valve synchronously soon, it is characterized in that three sides of valve body (2) are provided with three rapid release valves (8) down, three admission ports (17), and bore divides large, medium and small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202691085U CN201703370U (en) | 2009-12-26 | 2009-12-26 | Flow control type three-axle synchronous quick-release emergency relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202691085U CN201703370U (en) | 2009-12-26 | 2009-12-26 | Flow control type three-axle synchronous quick-release emergency relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201703370U true CN201703370U (en) | 2011-01-12 |
Family
ID=43440522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202691085U Expired - Fee Related CN201703370U (en) | 2009-12-26 | 2009-12-26 | Flow control type three-axle synchronous quick-release emergency relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201703370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556037A (en) * | 2011-12-19 | 2012-07-11 | 浙江诸暨东港液压机械有限公司 | Novel three-bridge emergency relay valve |
| CN103395415A (en) * | 2013-08-16 | 2013-11-20 | 浙江福尔加机械有限公司 | Double-pass quick release relay valve |
-
2009
- 2009-12-26 CN CN2009202691085U patent/CN201703370U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556037A (en) * | 2011-12-19 | 2012-07-11 | 浙江诸暨东港液压机械有限公司 | Novel three-bridge emergency relay valve |
| CN102556037B (en) * | 2011-12-19 | 2014-11-19 | 浙江诸暨东港液压机械有限公司 | Novel three-bridge emergency relay valve |
| CN103395415A (en) * | 2013-08-16 | 2013-11-20 | 浙江福尔加机械有限公司 | Double-pass quick release relay valve |
| CN103395415B (en) * | 2013-08-16 | 2015-11-04 | 浙江福尔加机械有限公司 | A kind of bi-pass quick-releasing relay valve |
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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: 20110112 Termination date: 20121226 |