Press automatic shrink door

The utility model relates to a press automatic shrink door belongs to mining mechanized equipment technical field, this shrink door includes side frame (1), left side frame (2), right side frame (3), left side door (4), right side door (5), middle frame (6) down, characterized by: include still that side frame (7), spring steel wire net (8), constriction device (9), the left end of side frame (1), middle frame (6), last side frame (7) and the right -hand member face of the body of the flange connection among the constriction device (9) (95) are connected down, and the horizontal direction of being convenient for is pressed the shrink, be connected through constriction device (9) between middle frame (6) and the last side frame (7), the vertical direction of being convenient for is pressed the shrink, constriction device (9) are including U type groove connector (91), nut (92), spring (93), bolt (94), the flange connection body (95), automatic shrink is realized to the right -hand member U type inslot in left