Emergency braking trigger control circuit and train

Abstract

The invention provides an emergency braking trigger control circuit and a train. The control circuit comprises two trigger devices which are arranged in a mirroring manner, wherein each trigger device consists of a control key switch, a first head compartment relay switch, a first tail compartment relay switch, a head compartment relay, a tail compartment relay, a second head compartment relay switch, a third head compartment relay switch, a second tail compartment relay switch and a third tail compartment relay switch, as well as an emergency braking button, an emergency braking protection button and a diode, wherein the first head compartment relay switch and the first tail compartment relay switch are connected in parallel, the head compartment relay and the tail compartment relay are connected in series, the emergency braking protection button and the diode are connected in series. According to the emergency braking trigger control circuit and the train, the two trigger devices are arranged in a mirroring manner, and each trigger device is connected with the emergency braking device, so that emergency braking can be conducted on the train and traction can be cut off under emergency circumstances, and when the emergency braking button of the train can not normally pop up due to mechanical faults, the train can realize normal traction through the emergency braking protection button and the diode which are connected in series.

Description

technical field [0001] The invention relates to mechanical technology, in particular to an emergency braking trigger control circuit and a train. Background technique [0002] Emergency braking is an important function to ensure that the train can stop at the fastest speed under abnormal conditions. If an emergency occurs, the driver cannot manually trigger the emergency braking, which will cause a major accident. [0003] In the prior art, the emergency braking trigger device is connected in series with a button with a normally closed contact in the emergency braking circuit. The train brakes suddenly. [0004] However, during the running of the train, if the emergency brake button is pressed, it cannot bounce up normally due to a mechanical failure, which will cause the train to be in an emergency braking state all the time and cannot be normally towed, which will further cause the entire line to be out of service. Contents of the invention [0005] The invention provi...

AI Technical Summary

Problems solved by technology

[0004] However, during the running of the train, if the emergency brake button is pressed, it cannot spring up normally due to mechanical failure, which will cause the train to always be in an emergency braking state and cannot be normally towed, which will further cause the entire line to be out of service.

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