Locking device of locomotive high-voltage electric appliance screen cabinet door

The utility model discloses a locking device of a locomotive high-voltage electric appliance screen cabinet door. The locking device of the locomotive high-voltage electric appliance screen cabinet door comprises a latch blocking rod, a latch link stopper and a plug-in device, wherein one lateral face of the latch link stopper is fixedly connected with a stand column which is arranged on one side of a screen cabinet, one end of the latch blocking rod penetrates through a fixed hole in the latch link stopper, the other end of the latch blocking rod is fixedly connected with the plug-in device, and the back of the plug-in device is fixedly connected with a stand column which is arranged on the other side of the screen cabinet. The locking device of the locomotive high-voltage electric appliance screen cabinet door aims at the requirement of a high-voltage interlocking function of a locomotive high-voltage electric appliance screen cabinet and solves the problem that an operational gap of sides of the screen cabinet of an electric appliance becomes smaller and smaller, the locking device with a front pulling type structure is adopted, and the locking device of the locomotive high-voltage electric appliance screen cabinet door solves the problem that an existing locking device is not convenient to operate due to the fact that the operational gap between screen cabinets is small, and has strong operability.