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Abnormal braking alarm device for semi-trailer

An alarm device, semi-trailer technology, applied in the direction of braking safety system, brake pressure measurement, etc., can solve the problem of not being able to detect abnormal braking of semi-trailers in time, reducing the performance and service life of semi-trailers, and heating of semi-trailer rims, etc. problems, to achieve the effect of reducing vehicle damage, simple structure, and timely alarm

Active Publication Date: 2017-06-16
ZHUMADIAN CIMC HUAJUN VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the above situation occurs, it is difficult for the driver to find out, which will often cause the rim of the semi-trailer to heat up and even cause the tire to spontaneously ignite
[0004] The existing alarm method is to add a thermal induction alarm device on the axle rim, which is not only complicated to install but also ineffective. Normal braking, at this time, abnormal braking has already caused damage to the semi-trailer, reducing the performance and service life of the semi-trailer

Method used

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  • Abnormal braking alarm device for semi-trailer
  • Abnormal braking alarm device for semi-trailer
  • Abnormal braking alarm device for semi-trailer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 with figure 2 As shown, an abnormal braking alarm device for a semi-trailer includes a first pressure switch 2 , a second pressure switch 3 , an alarm circuit 4 and a power supply 1 . The semi-trailer abnormal braking alarm device is installed in the semi-trailer braking system, which includes an air supply pipeline 6, a control pipeline 5, an emergency relay valve 7, an ABS system 10, and a single-chamber brake chamber 8. Dual-cavity brake air chamber 9. Semi-trailer air storage tank 11.

[0019] The air pressure detection port of the first pressure switch 2 is connected to the control pipeline 5 of the semi-trailer, the air pressure detection port of the second pressure switch 3 is connected to the air supply end of the double-chamber brake chamber 9 of the semi-trailer, and the power supply 1 1. A pair of normally closed contacts of the first pressure switch 2, a pair of normally open contacts of the second pressure switch 3 and the alarm circuit ...

Embodiment 2

[0036] The main difference between this embodiment and Embodiment 1 is that: the air supply method of the air supply pipeline to the dual-chamber brake air chamber is different. Specific different as image 3 As shown, the air supply pipeline 6 supplies air, and the gas enters and enters the semi-trailer air storage tank 11 through the emergency relay valve 7, and then passes through the semi-trailer air storage tank 11 to the double-chamber brake air chamber. 9 for air supply. When the gas pressure in the double-chamber brake air chamber 9 is greater than the pressure required by the double-chamber brake air chamber to release the spring brake, the semi-trailer releases the spring brake.

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PUM

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Abstract

The invention provides an abnormal brake warning device for a semitrailer. The abnormal brake warning device comprises a first pressure switch, a second pressure switch, a warning circuit and a power supply. A gas pressure detection port of the first pressure switch is communicated with a control pipeline of the semitrailer, a gas pressure detection port of the second pressure switch is communicated with a gas supply end of a double-cavity brake gas chamber of the semitrailer, and the power supply, a pair of normally closed contacts of the first pressure switch, a pair of normally open contacts of the second pressure switch and the warning circuit form a warning loop. The abnormal brake warning device for the semitrailer has the advantages of scientific design, reasonable structure, simplicity in mounting, convenience in use and warning timeliness.

Description

technical field [0001] The invention relates to a braking alarm device, in particular to an abnormal braking alarm device for a semi-trailer. Background technique [0002] The standard stipulates that semi-trailers must have separate dual-pipeline braking systems. When one circuit fails, the other circuit can still work and brake to ensure driving safety. In order to ensure driving safety, semi-trailers must be equipped with dual-chamber brake chambers that meet parking brakes, but most semi-trailers are not equipped with dual-chamber brake chambers on all axles. [0003] When the air leakage of the air supply pipeline or continuous braking causes the pressure of the semi-trailer's air storage tank to be lower than the pressure required to release the spring brake of the double-chamber brake chamber during driving, the axle with the double-chamber brake chamber is installed abnormally. braking, while axles in tractors and semi-trailers that are not equipped with dual-chambe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22
CPCB60T17/22B60T2270/88
Inventor 时中华朱爱平刘四涛董华周李晨诗韩月琴
Owner ZHUMADIAN CIMC HUAJUN VEHICLE