UNIVERSAL DIRECTIONAL PULLEY DEVICE FOR BOREHOLE INVESTIGATION

摘要

PURPOSE: A pulley device for inspecting a borehole is provided to improve the accuracy of a hydraulics test and borehole logging by rotating the top of a fixing device and automatically matching the directions of pulley, wire, and inspection devices. CONSTITUTION: A pulley device(100) for inspecting a borehole comprises a top main body(101), a bottom main body(102), and a pulley(110). A bearing(120) is rotatably inserted into the top and bottom main bodies. The pulley is rotatably installed in the top main body. The pulley hangs a probe wire and a conduction line. A pulley device is connected to a borehole casing which is joined to a borehole formed on the ground and rotates the pulley in a power application direction to the pulley.