Automobile tire detection fixing device

The utility model discloses an automobile tire detection fixing device which comprises a working table, a mounting groove is formed in the upper end face of the working table, a mounting plate is movably connected in the mounting groove, a hollow column is arranged in the middle of the upper end face of the mounting plate, a plurality of communicating grooves are formed in the hollow column at equal angles, and movable plates are arranged at the upper end and the lower end in the hollow column. The ends, located at the communicating grooves, of the moving plates are provided with protruding blocks movably connected with the communicating grooves, extrusion plates corresponding to the communicating grooves are arranged on the outer sides of the hollow columns, one ends of the extrusion plates are hinged to the protruding blocks on the moving plates at the upper ends and the lower ends of the hollow columns through corresponding connecting rods, and transmission devices enabling the moving plates to move opposi