Automatic discharge device for preventing blocking of machine base of elevator

The invention discloses an automatic discharge device for preventing blocking of a machine base of an elevator, belongs to the technical field of grain processing equipment, and mainly solves the problems that in conventional manual discharge, the efficiency is low, blocking finding is not timely, and a motor is burnt. The automatic discharge device is mainly characterized by comprising an elevator tail wheel rotating shaft head, an elevator tail machine base and a movable hole in the bottom of the tail machine base, wherein a detection piece is mounted at the end part of the tail wheel rotating shaft head; a detecting instrument bracket and a rotary detecting instrument are mounted in mounting holes of an elevator tail wheel rotating shaft bearing seat; a probe of the rotary detecting instrument is matched with the detection piece; and a pneumatic gate is mounted at the movable hole in the bottom of the tail machine base. The automatic discharge device can timely detect blocking, automatically discharges mat