CN202608761U - Self-unloading parking brake circuit - Google Patents
Self-unloading parking brake circuit Download PDFInfo
- Publication number
- CN202608761U CN202608761U CN 201220254852 CN201220254852U CN202608761U CN 202608761 U CN202608761 U CN 202608761U CN 201220254852 CN201220254852 CN 201220254852 CN 201220254852 U CN201220254852 U CN 201220254852U CN 202608761 U CN202608761 U CN 202608761U
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- CN
- China
- Prior art keywords
- valve
- gas
- parking
- differential relay
- hand brake
- 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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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model belongs to the technical field of vehicle braking, in particular relates to a self-unloading parking brake circuit. The self-unloading parking brake circuit comprises a gas storage cylinder, pipe connectors, a hand brake valve, a one-way valve, a differential relay valve and a brake gas chamber, wherein the gas storage cylinder is connected to the gas inlet of the hand brake valve and the gas inlet of the differential relay valve through the pipe connectors; the gas outlet of the hand brake valve is connected with a control port of the differential relay valve, and the gas outlet of the differential relay valve is connected with a parking gas chamber of the brake gas chamber; and the one-way valve is arranged between the pipe connectors and the hand brake valve. According to the utility model, because the using number of the pipe connectors is decreased, arrangement space is reduced, and a gas leakage link is correspondingly eliminated, and therefore, the convenience for installation and maintenance is achieved; a parking gas circuit and an auxiliary gas are isolated through the one-way valve and therefore, the parking reliability of a parking circuit is enhanced; and the self-unloading parking brake circuit disclosed by the utility model has popularization and use value.
Description
Technical field
The utility model belongs to the vehicle brake technology field, is specifically related to a kind of dumping car braking during standstill loop.
Background technology
In order to guarantee traffic safety; The brake system of general vehicle all comprises the service brake emergency brake system of unifying simultaneously; For dumping car; The air receiver of its braking during standstill is leaded up to tee connection and pipeline and is connected to hand brake valve and differential relay valve, through operator brake activation valve control brake air chamber, realizes the dumping car Parking or removes parking function.But simultaneously for the auxiliary of vehicle provides source of the gas with gas, other auxiliaryly links to each other dumping car with air receiver with pipeline through independent tee connection with gas the air receiver of braking during standstill separately toward contact.Because assisting with other, Parking usefulness gas do not isolate with gas; Parking usefulness gas is subject to car load, and other auxiliary disturbs with gas; In driving process, the excessive air pressure that causes of gas consumption is low excessively when perhaps using other to assist with gas during chaufeur stepping on clutch pedal, differential relay valve meeting this moment corresponding action; Make automobile produce the mistake brake, it is not steady to cause dumping car to go; Because the quantity of the adaptor union of air receiver is many, taken big quantity space simultaneously, caused possible gas leakage link also a lot, be difficult to when leaking air fault detect rapidly and change.
Summary of the invention
It is high that the utility model technical matters to be solved provides a kind of reliability, the dumping car braking during standstill loop that takes up room little.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
A kind of dumping car braking during standstill loop; Comprise air receiver, adaptor union, hand brake valve, check valve, differential relay valve and compressed air brake cylinder; Air receiver is connected to the admission port of hand brake valve and the admission port of differential relay valve through adaptor union, and the air extractor duct of hand brake valve is connected with the control mouth of differential relay valve, and the air extractor duct of differential relay valve is connected with the Parking air chamber of compressed air brake cylinder; Also comprise check valve, said check valve is arranged between said adaptor union and the said hand brake valve.
Said adaptor union is the adaptor union group.
Said dumping car braking during standstill loop also comprises the infrabar alarm switch, and said infrabar alarm switch is arranged between the control mouth of air extractor duct and differential relay valve of said hand brake valve.
The beneficial effect of the utility model is owing to the usage quantity that has reduced adaptor union, thereby reduces arrangement space, also reduces the gas leakage link accordingly, is easy to install and maintain; Check valve leaves with auxiliary the Parking gas circuit with air bound, improved the therefore reliability of Parking loop braking, has popularizing value.
Description of drawings
Further specify below in conjunction with accompanying drawing and the specific embodiment technical scheme the utility model.
Fig. 1 is the schematic diagram in the utility model embodiment dumping car braking during standstill loop.
The specific embodiment
As shown in Figure 1; A kind of dumping car braking during standstill loop that the utility model embodiment provides; Air receiver 1 links to each other with adaptor union group 2; A joint of adaptor union group 2 connects check valve 4, and check valve 4 rear end pipelines are connected to the admission port of hand brake valve 3 and the admission port of differential relay valve 6 through a tee connection is set through pipeline, and the air extractor duct of hand brake valve 3 is connected with the control mouth of differential relay valve 6; The air extractor duct of differential relay valve 6 is connected with the Parking air chamber of compressed air brake cylinder 7, and infrabar alarm switch 5 is arranged between hand brake valve 3 air extractor ducts and the differential relay valve 6 control mouths.
The driver realizes the dumping car Parking through operator brake activation valve 3 or removes parking function.Other is assisted and links to each other with adaptor union group 2 other interfaces respectively with gas, temporarily blocks with plug without joint, and the usage quantity of adaptor union is reduced in this loop, and the corresponding gas leakage link that reduced is easy to install and maintain; Check valve 4 leaves with air bound Parking gas circuit and other are auxiliary, not auxiliaryly disturbed with gas by other, has improved the therefore reliability of Parking loop braking.
It should be noted last that; The above specific embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (3)
1. dumping car braking during standstill loop; Comprise air receiver, adaptor union, hand brake valve, check valve, differential relay valve and compressed air brake cylinder, air receiver is connected to the admission port of hand brake valve and the admission port of differential relay valve through adaptor union, and the air extractor duct of hand brake valve is connected with the control mouth of differential relay valve; The air extractor duct of differential relay valve is connected with the Parking air chamber of compressed air brake cylinder; It is characterized in that, also comprise check valve, said check valve is arranged between said adaptor union and the said hand brake valve.
2. dumping car braking during standstill according to claim 1 loop is characterized in that said adaptor union is the adaptor union group.
3. according to claim 1 or 2 said dumping car braking during standstill loops, it is characterized in that, also comprise the infrabar alarm switch, said infrabar alarm switch is arranged between the control mouth of air extractor duct and differential relay valve of said hand brake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254852 CN202608761U (en) | 2012-06-01 | 2012-06-01 | Self-unloading parking brake circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254852 CN202608761U (en) | 2012-06-01 | 2012-06-01 | Self-unloading parking brake circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202608761U true CN202608761U (en) | 2012-12-19 |
Family
ID=47342485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254852 Expired - Fee Related CN202608761U (en) | 2012-06-01 | 2012-06-01 | Self-unloading parking brake circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202608761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114987419A (en) * | 2022-07-13 | 2022-09-02 | 北京福田戴姆勒汽车有限公司 | Solenoid valve, parking braking system and vehicle |
-
2012
- 2012-06-01 CN CN 201220254852 patent/CN202608761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114987419A (en) * | 2022-07-13 | 2022-09-02 | 北京福田戴姆勒汽车有限公司 | Solenoid valve, parking braking system and vehicle |
| CN114987419B (en) * | 2022-07-13 | 2023-03-14 | 北京福田戴姆勒汽车有限公司 | Solenoid valve, parking braking system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150601 |
|
| EXPY | Termination of patent right or utility model |