Rear-end collision prevention warning device for large mine car

The utility model relates to a rear-end collision prevention warning device for a large mine car, and belongs to the technical field of mechanical devices. According to the technical scheme, an external loudspeaker box (3) is installed at the tail of the mine car, a digital probe (1) is arranged on the external loudspeaker box (3), a laser character emitting lamp (2) is installed on the external loudspeaker box (3), the digital probe (1) is connected with the laser character emitting lamp (2) and the external loudspeaker box (3), and the detection direction of the digital probe (1) and the irradiation direction of the laser character emitting lamp (2) both face the rear portion of the mine car. Compared with the prior art, the utility model has the beneficial effects that the laser character emitting lamp and the external sound box are used for visual and auditory perception to remind a driver behind to keep a safe distance, the reliability is high, the structure is simple, the installation is easy, the use i