Gate-type nucleation security check instrument

The utility model discloses a gate-type nucleation security check instrument. The device comprises a vertical door frame, a threaded rod, a glass plate, a threaded sleeve, a detector, a second belt wheel, a belt, a buzzer, a control panel, a single-chip microcomputer, a first motor, a first belt wheel, a transverse door frame, a first shaft rod, a standing plate, a second shaft rod, a second motor, limiting rods, baffles, chains, chain wheels, rotating rods, pinions, third shaft rods, third motors, big gears, bases and through holes. According to the utility model, through the mutual cooperation of the threaded rod, the threaded sleeve, the standing plate, the transverse door frame and the belt wheel, pedestrians can be better detected in a more omnibearing manner, the detection efficiencyof the security check door is greatly improved, and the work intensity of workers is reduced; and through mutual cooperation of a baffle, a chain wheel, a rotating rod and a gear, the situation thatprohibited objects are car