FIELD: mining.
SUBSTANCE: device for determining borehole direction has a handle made in the form of a gun and includes a guide with goniometric scale in the form of semi-circle with plumb equipped with fixture in the form of trigger, and light source is installed inside the guide. At that, device is equipped with Z-shaped frame on upper platform of which there arranged is azimuth circle with magnetic needle and needle lock, and counter weight is fixed on lower platform of the frame. At that, the frame is connected to the guide by means of a pin with possibility of being turned relative to its axis, and the pin is enveloped with the rod connected to the needle lock and to the plumb locking device. Azimuth circle plane is perpendicular to plane of goniometric scale. All the device elements except magnetic needle are made from non-magnetic material.
EFFECT: device allows measuring borehole location angles not only in vertical plane, but also in horizontal plane.
3 cl, 1 dwg
