互锁门开关：安全保护的关键设备

互锁门开关是一种重要的安全保护设备，它通常由一个门开关和一个或多个附属开关组成。当门开关打开时，它会触发附属开关，使设备处于安全状态，而当门关闭时，它会解除附属开关的安全状态。这种设备通常用于维护设备的安全，防止意外的伤害和损坏。

Interlock door switch is an important safety protection device, which is usually composed of one door switch and one or more subordinate switches. When the door switch is opened, it triggers the subordinate switch to make the device safe, and when the door is closed, it releases the safety state of the subordinate switch. This kind of device is usually used to maintain the safety of the equipment, prevent accidental injury and damage.