Separation screw nut with buffer structure

The utility model belongs to the field of a reed type screw bolt catcher structure, and particularly relates to a separation screw nut with a buffer structure. The separation screw nut comprises a support ring (1), a separation screw nut casing (2), a buffer pad (3), a segmented screw nut (4) and an igniter (5), wherein a cavity is formed between the bottom of the separation screw nut casing (2) and the support ring (1), the metal buffer pad (3) is arranged in the cavity and is in an annular structure, and the inside of the cross section is provided with a cavity so that the annular cross section is in a spoon shape. The separation screw nut has the beneficial effects that the firer separation screw nut in the technical scheme provided by the utility model is adopted, and on the premise of not changing the outer structural dimension of the separation screw nut and the support ring moving stroke, the goal of reducing the separation impact generated through the severe collision between the support ring and the