CN204956468U - Trailer under -voltage protection brakies pipe -line system - Google Patents
Trailer under -voltage protection brakies pipe -line system Download PDFInfo
- Publication number
- CN204956468U CN204956468U CN201520725460.0U CN201520725460U CN204956468U CN 204956468 U CN204956468 U CN 204956468U CN 201520725460 U CN201520725460 U CN 201520725460U CN 204956468 U CN204956468 U CN 204956468U
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- trailer
- pressure sensor
- brake
- valve block
- brake piping
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Abstract
The utility model provides a trailer under -voltage protection brakies pipe -line system, include the valve piece, entry and braking input pipeline intercommunication, two exports of this valve piece of this valve piece feed through with tractor brake piping and trailer brake piping respectively, be provided with the pressure sensor who is used for detecting oil pressure in the valve piece on the valve piece and be used for the normally open solenoid valve of control trailer brake piping break -make, this normally open solenoid valve with the pressure sensor electricity is connected. The utility model discloses the brake piping of tractor can be protected effectively, braking system's reliability has been increased, the security that has improved whole car.
Description
Technical field
The utility model relates to tractor truck brake pipeline system technical field, is specifically related to a kind of brake pipeline system for trailer o-volt protection.
Background technology
Brake pipeline system many employings dynamic brake of the matching used flat-bed trailer of current tractor truck, in order to ensure the brake synchronous of tractor truck and flat truck, what tractor truck and trailer adopted is same master brake cylinder, and be only increases the brake piping that a threeway is assigned to trailer on the pipeline that master brake cylinder leads to drive axle.The shortcoming of this brake piping is, when the brake piping of rear end trailer occurs to leak, tractor truck pipeline also produces leakage, causes braking failure.
Utility model content
For preventing in braking procedure because trailer brake pipeline generation leakage causes tractor truck braking failure; the utility model provides a kind of trailer o-volt protection brake pipeline system; brake piping adds trailer o-volt protection function specially; after can guaranteeing that brake-line leak appears in rear end trailer, front end tractor truck still can normal brake application.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of trailer o-volt protection brake pipeline system; comprise valve block; the entrance of this valve block is communicated with braking chargine line; two of this valve block outlets respectively with tractor truck brake piping and trailer brake pipeline connection; described valve block is provided with the pressure sensor for detecting oil pressure in valve block and the normally open solenoid valve for control trailer brake piping break-make, this normally open solenoid valve is electrically connected with described pressure sensor.
Preferably, the energising pressure of described pressure sensor is less than or equal to 4MPa.
Preferably, described pressure sensor is electrically connected with foot brake switch.
From above technical scheme, the utility model can protect the brake piping of tractor truck effectively, adds the reliability of brake system, improves the safety of car load.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is electrical schematic diagram of the present utility model.
In figure: 10, valve block, 20, braking chargine line, 30, tractor truck brake piping, 40, trailer brake pipeline, 50, pressure sensor, 60, normally open solenoid valve, 70, foot brake switch.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of preferred implementation of the present utility model is described in detail.
As shown in Figure 1, described brake pipeline system comprises valve block 10, braking chargine line 20, tractor truck brake piping 30 and trailer brake pipeline 40, wherein the entrance of valve block is communicated with braking chargine line, two of valve block outlets respectively with tractor truck brake piping and trailer brake pipeline connection, described valve block is also provided with the pressure sensor 50 for detecting oil pressure in valve block, this pressure sensor is electrically connected with foot brake switch 70, by foot brake come control presssure sensor electric.The path leading to trailer brake pipeline in valve block adds one two one normally open solenoid valves 60 led to, and this normally open solenoid valve is electrically connected with described pressure sensor 50, can according to the break-make of the signal control trailer brake pipeline 40 of pressure sensor.
Composition graphs 2 is described below principle of work of the present utility model:
Pressure is distributed to tractor truck brake piping and trailer brake pipeline by valve block by braking chargine line, make tractor truck, flat-bed trailer reaches braking effect, electromagnetic valve and pressure sensor are set in valve block, electromagnetic valve is often opened, obtain electric rear closedown, electric signal is from pressure sensor, pressure sensor is energized when pressure is less than 4MPa, pressure sensor electric signal is from foot brake switch, during tractor truck braking, electric signal is passed to pressure sensor by foot brake switch, if trailer does not leak, pressure on pressure sensor remains on the rated pressure on 10MPa(brake piping) left and right, now pressure sensor no power, electromagnetic valve does not have electric signal yet, all the time open, if trailer leaks, when pressure on pressure sensor is less than 4MPa, pressure sensor is energized, after electromagnetic valve has had electric signal, close, cut off the hydraulic tubing leading to trailer, trailer brake pipeline does not just have pressure at once, would not, because of trailer conduit failure, hydraulic fluid leak be caused to affect tractor truck braking effect like this.
The above embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.
Claims (3)
1. a trailer o-volt protection brake pipeline system; it is characterized in that; comprise valve block (10); the entrance of this valve block is communicated with braking chargine line (20); two outlets of this valve block are communicated with tractor truck brake piping (30) and trailer brake pipeline (40) respectively; described valve block (10) is provided with the pressure sensor (50) for detecting oil pressure in valve block and the normally open solenoid valve (60) for control trailer brake piping break-make, this normally open solenoid valve is electrically connected with described pressure sensor.
2. trailer o-volt protection brake pipeline system according to claim 1, is characterized in that, the energising pressure of described pressure sensor (50) is less than or equal to 4MPa.
3. trailer o-volt protection brake pipeline system according to claim 1, is characterized in that, described pressure sensor (50) is electrically connected with foot brake switch (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725460.0U CN204956468U (en) | 2015-09-18 | 2015-09-18 | Trailer under -voltage protection brakies pipe -line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725460.0U CN204956468U (en) | 2015-09-18 | 2015-09-18 | Trailer under -voltage protection brakies pipe -line system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204956468U true CN204956468U (en) | 2016-01-13 |
Family
ID=55051550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520725460.0U Active CN204956468U (en) | 2015-09-18 | 2015-09-18 | Trailer under -voltage protection brakies pipe -line system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204956468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203184A (en) * | 2019-05-06 | 2019-09-06 | 万向钱潮股份有限公司 | A kind of ABS hydraulic block for electric automobile energy recycling |
| CN110203184B (en) * | 2019-05-06 | 2024-05-24 | 万向钱潮股份公司 | ABS hydraulic block for energy recovery of electric automobile |
-
2015
- 2015-09-18 CN CN201520725460.0U patent/CN204956468U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203184A (en) * | 2019-05-06 | 2019-09-06 | 万向钱潮股份有限公司 | A kind of ABS hydraulic block for electric automobile energy recycling |
| CN110203184B (en) * | 2019-05-06 | 2024-05-24 | 万向钱潮股份公司 | ABS hydraulic block for energy recovery of electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |