The brake valve is simple in structure, can realize wire control of the brake pipe fluid pressure, and has the capacity of mechanical backup brake under the condition of the electrical fault.

本发明结构简单，能实现制动管路液压力的线控制，并具备电气故障下的机械备份制动能力。

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In reality, the machines in the ICU have many fail-safe backup systems so that mechanical failure is rare.

在现实中，ICU机器都有很多故障保险备份系统，因此，出现机械故障的可能性很小。

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