Valve dismounting device

The utility model discloses a valve dismounting device. The valve dismounting device comprises a dismounting rod (2), a fixed seat (3) and a movable nut (4), the fixed seat (3) is a cavity body with an opening at one end; a positioning boss is arranged on the other end surface of the positioning block; a through hole is formed in the positioning boss; the dismounting rod (2) is movably connected into the through hole, one end of the dismounting rod (2) is in threaded connection with the movable nut (4) through threads on the surface of the dismounting rod (2), a valve fixing structure is arranged at the other end, a positioning groove is formed in the end face of the movable nut (4), and the movable nut (4) is rotatably connected to one end of the fixing base (3) through the positioning groove. On the premise that the size precision and the surface smoothness of a matching surface are not damaged, the valve can be easily, conveniently and stably inserted or pulled out in a labor-savingmanner. 本实用新型公开了一种活门拆卸装置