DETONATION TRANSFER DEVICE Russian patent published in 2018 - IPC E21B43/1185 C06C5/04 

FIELD: blasting operations.

SUBSTANCE: invention can be applied to development of ammunition, military and space technologies, explosion devices for use in industrial, scientific, and research activities, where it is required to transfer a detonation pulse to the required distance. Detonation transfer device has an adapter sleeve with an axial recess at the end and an axial stepped through hole in which a detonating cord and reinforcing bead of the explosive are placed. There is a frame with an axial projection at the end corresponding to the recess on the end of the adapter sleeve and an axial through hole in which a detonating cord and reinforcing bead of the explosive are also placed, wherein the axial recess at the end of the central adapter is made in the form of a polygon with a number of angles in a cross section of at least three; the frame is composite and consisting of a union nut with an axial stepped through hole and an adapter sleeve installed therein. At one end of the adapter sleeve there is an axial projection, made in the form of a prism with a number of angles corresponding to the number of angles of the axial recess of the central adapter, and the other end is in the form of a cylinder having an abutment in the bottom of the union nut and a shank whose diameter is smaller than the diameter of the hole in the bottom of the union nut. Height of the prism of the adapter sleeve is greater than the axial recess of the central adapter. Adapter sleeve and central adapter are fixed to each other by a union nut.

EFFECT: obtaining a detachable connection of individual detonating cords, excluding their rotation relative to each other due to the geometry of the adjacent elements.

1 cl, 1 dwg