DEVICE FOR HOLE MAKING Russian patent published in 2001 - IPC

FIELD: equipment and methods of hole making in geological structures by breakage of rocks with help of energy of compressed working medium. SUBSTANCE: device has body and power plant, rock breaking member operating on principle of action of medium to be broken by working agent under high pressure. Device body is comprised of module separate parts interconnected by elastopliable corrugated members made, mainly, of spring steel. Working member is also connected with body by means of said member and provided with shaped nozzles having internal inserts forming their flow areas, and ball supports for orientation of axes of nozzles to any direction. In this case, part of nozzles is oriented perpendicular to bottom, part, at different angles to bottom area, and part, in direction opposite to hole bottom, and part of nozzles is oriented with their axes at angle to diametrical late of working agent. Such design of device allows rapid change of its axis and direction of sunk hole or working to enhance productivity and efficiency of holing and making holes with complicated path and side holes with complicated paths from hollows of existing holes, laying of service lines under various obstacles such as buildings, water obstacle, embankments, etc. EFFECT: higher efficiency of device. 2 cl, 8 dwg