Drilling equipment for drilling ground holes into building, has transverse bore running transverse to axis of tool, drive cultivated at kelly bar or at intermediate piece or at tool, and bolt moved out from bore by drive

摘要

The equipment has a transverse bore (12) running transverse to a longitudinal axis of a tool (1) e.g. drill bit, through walls (14) of the tool. A drive (4) e.g. mechanical or pneumatic or electrical or hydraulic drive and electromotor such as linear electromotor, is cultivated at a kelly bar (2) or at an intermediate piece or at the tool, and a bolt (3) is moved out from the transverse bore by the drive. An energy storage (5) is formed as an accumulator e.g. lithium ion battery, and a radio receiver (7) is arranged close to the drive. A tube holder is coupled to the kelly bar or to the piece.