Blockage detection device and Z-shaped material elevator

The utility model discloses a material blocking detection device and a Z-shaped material hoister, which comprise a hoister main body, the upper end face of the hoister main body is provided with a feed port, the upper end of the feed port is provided with a feeding hopper, the two ends of the feeding hopper are provided with supporting rods, and the feeding hopper is fixedly connected with the hoister main body through the supporting rods. A screen is arranged between the feeding hopper and the elevator body, a pulley is arranged on the side end face of the screen, a motor is arranged on the upper end face of the elevator body, a cam is in key joint with the front end of the motor, a baffle is arranged on the upper end face of the elevator body, and a first spring is arranged between the baffle and the screen. A blockage detection mechanism is arranged on the inner end face, close to the top of the inlet end, of the elevator body. Through cooperation of the screen, the motor, the cam, the pulley and the first