Railway passenger car brake alarm valve

A technology of railway passenger cars and alarm valves, which is applied in the direction of brakes, brake components, brake safety systems, etc., and can solve problems such as emergency situations that cannot be handled in time

Active Publication Date: 2015-11-04
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the driver cannot know the situation at the first time, he will not be able to take the brake operation immediately, which will cause the emergency situation in the compartment to be dealt with in time, and there will be endless troubles

Method used

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  • Railway passenger car brake alarm valve
  • Railway passenger car brake alarm valve
  • Railway passenger car brake alarm valve

Examples

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Embodiment Construction

[0010] refer to figure 1 , 2 The embodiment of the present invention includes a main piston 4, a cross-shaped pull rod 3, a compression spring 10, a handle 1, a throttle plug 5, a valve body 6, and an extension spring 2, and a rubber sealing ring is installed on the main piston 4 as a core functional component. 8. It forms the main valve port with the valve body 6; the main piston is rigidly connected with the cross-shaped tie rod 3 and can move accordingly. Both of them are provided with a communication hole 9 to prevent the pressure difference between the main piston 4 and the cross-shaped tie rod 3. affect normal function. The cross rod is in the guide groove of the valve body 6 and can slide up and down along the guide groove; an O-ring 11 is installed between the guide groove and the cross rod to avoid air leakage when the cross rod slides; a compression spring is arranged above the cross rod 10. Its elastic force can press the cross rod and the main piston tightly on ...

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Abstract

A railway passenger train brake alarm valve comprises a main piston, a cross pull bar, a pressure spring, a handle, a throttling plug, a valve body and a tension spring. The main piston is provided with a rubber seal ring and forms a main valve opening with the valve body; the main piston is rigidly connected with the cross pull bar, and both the main piston and the cross pull bar are provided with communicating holes; the cross pull par is located in a guide groove of the valve body and capable of sliding up and down along the guide groove; the pressure spring is arranged over the cross pull bar, and the handle is fixed on the valve body and can axially rotate; the handle and the cross pull bar are connected by adopting a sliding pair, the throttling plug is mounted on an exhaust outlet of the valve body, and the tension spring is connected with the handle and the valve body. By the adoption of a piston structure with the communicating holes and a structure with exhaust diameters changed by replacement of the throttling plugs different in specification, air can be exhausted at the required speed, only particular levels of service braking are triggered, the effect that a driver can be informed of emergency circumstances which can be alleviated at any time is achieved, and operating requirements of a railway passenger train can be met.

Description

technical field [0001] The invention belongs to the technical field of railway passenger car braking, and relates to a brake alarm valve. Background technique [0002] The emergency brake valve is installed in the easy-to-operate position in the passenger compartment of railway passenger cars in my country. The valve is connected to the train pipe that controls the train brake. After the crew operates, the air in the train pipe is emptied through the large-diameter exhaust port with a fixed specification on the valve. , triggering the emergency braking of the train. [0003] Because the emergency brake valve on the existing railway passenger car is installed in a position that is easy to operate in the passenger compartment, there is a risk of misoperation by passengers, which will cause the train to stop abnormally and affect normal operation. Since the train stops quickly after the emergency brake valve is used, this action cannot be ignored or alleviated, and the train dr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T15/02B60T17/22
Inventor 辛志强孟繁辉
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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