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Electromagnetic valve for train tail device

The technology of a column tail device and a solenoid valve, which is applied in the field of solenoid valves, can solve the problems of small effective exhaust diameter and poor versatility of the solenoid valve, and achieve the effects of compact structure, convenient installation, simple and reasonable structure

Active Publication Date: 2012-07-11
BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are many types of passenger trains in operation at present, and the effective exhaust diameter of the solenoid valve of the train passenger tail device used in the railway is small, which can only trigger the emergency braking requirements of some trains, and has poor versatility

Method used

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  • Electromagnetic valve for train tail device
  • Electromagnetic valve for train tail device
  • Electromagnetic valve for train tail device

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as figure 1 and 2 As shown, according to the present invention, there is provided a solenoid valve 100 for a rear end device of a passenger car. The electromagnetic valve 100 is fixed in the train end device of the passenger car, and the working pressure range is 0.15-0.7 MPa. It adopts electric and pneumatic combined control and internal pilot to open the air exhaust mode. The solenoid valve 100 mainly includes a solenoid coil 1 , a pilot mechanism 2 , an intake pipe 3 , a solenoid valve cavity 4 , a valve core 5 , a sensor 8 and other components.

[0025] exist image 3 An exploded view of the components of the solenoid valve 100 is shown in . As shown in the figure, the pilot mechanism 2 is installed on the solenoid valve cavity 4 through the sealing ring 18 and the bolt 20, and is installed above the solenoid valve cavity 4 in the illustrated embodi...

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PUM

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Abstract

An electromagnetic valve for a train tail device comprises an electromagnetic valve cavity, an air inlet pipe, a pilot mechanism and at least two spools, wherein the air inlet pipe and the pilot mechanism are mounted on the electromagnetic valve cavity, and the spools are mounted in the electromagnetic valve cavity. The pilot mechanism comprises a pilot valve and an electromagnetic coil acting to the pilot valve, and each spool comprises a piston and a valve. The electromagnetic coil can drive the pilot valve to be switched on, so that air from the air inlet pipe can enter the electromagnetic valve cavity and drive the spools to act. By the aid of the at least two spools arranged in the electromagnetic valve cavity, when one of the spools cannot act due to faults, the other one can be switched on and off normally, and thereby air exhaust can be realized and the requirements of emergency brake of a train can be met.

Description

technical field [0001] The invention relates to an electromagnetic valve, in particular to an electromagnetic valve used for a rear end device of a passenger car. Background technique [0002] The disconnection of the carriage at the rear of the train is a major safety hazard in the operation of the train, and accidents in this area often occur in recent years. In order to eliminate potential safety hazards and ensure the driving safety of trains, it is generally adopted to install wind pressure alarm equipment at the rear of the train. In the case of adopting the above-mentioned design scheme, it is generally necessary to articulate a train tail device at the tail car of the train. The end-of-train device communicates with the locomotive through a radio station to achieve multiple functions, such as displaying the wind pressure value at the rear of the train, confirming the integrity of the train, and automatically detecting the leakage of the air duct. The end-of-line de...

Claims

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Application Information

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IPC IPC(8): B61H11/10F16K31/06F16K11/10
Inventor 田秀臣冷盛翔李晓伟
Owner BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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