CUMULATIVE LOCKING UNIT

摘要

The utility model relates to performance of drill-blast operations. A cumulative locking unit has a hollow shutter made of elastic material, this is equipped with bottom arranged with symmetrical concavity to the side of the shutter cavity, support connected to the shutter, ribs placed in the cavity and connected to the bottom and the walls of the shutter. A cylindrical hermetic vessel is coaxially attached to the bottom from beneath. To provide possibility to place the charge without difficulties to the bottom of the well, hermetic vessel is arranged as a sphere with outer diameter smaller than diameter of the well.