Spare wheel up-down regulator capable of conveniently and rapidly disassembling wheel

The utility model provides a spare tire up-down regulator convenient and quick to detach wheel, relates to the technical field of automobile tools, and comprises a mounting shell and a steel cable wheel, the steel cable wheel is rotatably arranged in the mounting shell, a winding groove is arranged on the side wall of the steel cable wheel, a steel cable is wound in the winding groove, and the steel cable is connected with the mounting shell. The lower end of the steel cable extends out of the mounting shell and is connected with a hoisting part; sliding grooves are formed in the lower portions of the two sides of the mounting shell, I-shaped sliding blocks are movably arranged in the sliding grooves, a rotating shaft is rotationally arranged between the two I-shaped sliding blocks, and a worm is arranged on the rotating shaft. The steel cable wheel rotates to pull the steel cable to ascend or descend through matching of the worm and the worm wheel, the worm can be driven to descend and be separated from the