DEVICE FOR SURVEYING PILLAR MINING SECTIONS Russian patent published in 2012 - IPC G01C3/00 

FIELD: electricity.

SUBSTANCE: device for surveying pillar mining sections comprises a vertical stand, a plate, a bull's-eye level fixed on the plate, according to the invention, the vertical stand is equipped with a ball hinged joint, comprising a ball pivot and a body equipped with a clamp, at the same time the ball pivot is connected with a seating sleeve having an inner hole, in which a support is arranged as capable of rotation around the axis, besides, the support via a pressing stem is connected to another support, onto which a cylinder is placed, with the possibility of rotation around the axis of this support, and which is attached to one of the plate sides coaxially with a circular goniometrical scale arranged on the other side of the plate, at the same time in the centre of the circular goniometrical scale by means of a pin, a laser range finder is fixed with a pointer as capable of rotation around the pin axis, and a surveying compass is fixed to the end surface of the plate perpendicularly to the plane of the circular goniometrical scale, by means of the coupling, as capable of rotation around the coupling axis, and the goniometrical scale with angle marks of ±90°, equipped with a pointer, at the same time all elements of the device, apart from the surveying compass pointer, are made of a non-magnetic material. The seating sleeve and the cylinder are equipped with fixators. The surveying compass is equipped with a balancing weight fixed to it by means of ties.

EFFECT: invention provides for measurement of pillar mining section dimensions in horizontal and vertical planes.

3 cl, 10 dwg