System and method of inspection of holes to charge explosives in blasting holes

摘要

A drill inspection system comprising - a drill inspection device comprising: a tubular housing (7), lighting means (10) and image collection means (9), housed in the housing (7), at less a circulation passage (16) of a fluid (4), and a diffuser element (1) suitable for projecting the fluid (4) under pressure that circulates through the at least one circulation conduit (16) on a transparent closure ( 2) that allows the illumination and the capture of images through it. characterized in that the borehole inspection system comprises: - a flexible tubular conduit (25), with a certain torsional stiffness, leaving the wiring and conduits necessary for lighting, image capture and the supply of the cleaning fluid protected and located in the interior of said flexible tubular conduit (25), and - a centering element (22) disposed in a position between the borehole inspection device and the flexible tubular conduction (25), the centering element (22) being configured as an elongate element , deformable under the action of a force and with memory so that it has an upper section, a lower section and two couplings in opposite directions in a central portion, the upper section being provided to remain substantially in contact with the hole wall and providing the lower section to remain substantially centered in the hole.