Safety stop device for railway transportation hopper car with bottom door

The utility model relates to the technical field of railway hopper cars, in particular to a railway transportation hopper car safety blocking device which comprises a car hopper, a car door and a safety blocking assembly are respectively installed on the outer surface of the front side of the bottom of the car hopper, a hinged support is installed at the connecting position of the car door and the car hopper, and a door lock is installed on the front end face of the car door. The safety gear assembly comprises a first baffle and a second baffle, a gear is installed between the first baffle and the second baffle, tooth blocks are arranged on the outer surfaces of the sides, opposite to the gear, of the first baffle and the second baffle, and the rear end face of the gear is connected with a stepping motor. The safety stop assembly is arranged on one side of the door of the railway transportation hopper car with the bottom door, the gear rotates anticlockwise to drive the first baffle and the second baffle to s