The utility model relates to the technical field of underground mine cars, in particular to an
alarm device for an underground mine car, which comprises a car bottom, a car head fixedly mounted at the top of the front of the car bottom, a cab fixedly mounted at the top of the back of the car bottom, and an
alarm device arranged at the top of the car head. The
alarm device comprises a
millimeter-
wave radar, a
radar dome, a wire, a lamp post and a
buzzer, the
millimeter-
wave radar is arranged, the
radar dome senses front obstacles and transmits electric signals to a
processing unit in the
millimeter-
wave radar, then the
processing unit transmits
alarm trigger signals to the lamp post through the wire, and the alarm device sends the
alarm trigger signals to the lamp post through the wire. The lamp post and the
buzzer can
flicker and ring at the same time, even if a driver cannot see potential dangers at front persons or corners in a dust environment, the millimeter wave
radar can also see the potential dangers, danger signals are transmitted to the lamp post and the
buzzer through the wire, an alarm is given in time, the driver is reminded to take measures, and therefore accidents are avoided.