Tire dismounting device and using method

The invention relates to a tire dismounting device and a using method. An existing tire only can rely on manpower for carrying and lifting after being dismounted, tire rectifying also relies on manpower for adjusting, and great manpower is needed. The composition of the tire dismounting device comprises a base plate (12), the base plate is connected with two oblique frames (3), and a sleeve pipe A (2) is connected with the ends of the two oblique frames; a groove is formed in the sleeve pipe A, a supporting pipe (1) is sleeved with the sleeve pipe A and is in a T shape, and a convex block (15) is arranged on the supporting pipe; one end of the supporting pipe is provided with a sharp head (25), the two ends of a connecting pipe (8) are connected with the oblique frames, and the connecting pipe is sleeved with a sleeve pipe B (7), and the connecting pipe is connected with two bottom pipes (6); a wheel shaft (4) is connected with the bottom pipes, the ends of the wheel shaft are provided with rotating wheels (5