Mine gear device

The utility model discloses a car stop device for a mine, which relates to the technical field of ore extraction and comprises a positioning plate in the shape of a right trapezoid; the mounting plate is arranged on the lower surface of the positioning plate; the positioning cylinder is fixedly arranged on the vertical surface of the positioning plate, and the opening end of the positioning cylinder is opposite to the positioning plate; the top plate is slidably arranged in the positioning cylinder, and the top plate is connected with the inner wall of the positioning cylinder through a second spring; one end of the sliding cylinder slidably extends into the positioning cylinder, and a second sliding hole is formed in the side wall of the other end; the baffle is connected with a sliding rod, and the sliding rod penetrates through the second sliding hole in a sliding mode; the third spring slidably sleeves the sliding rod, one end of the third spring is connected with the baffle, and the other end of the thir