COUPLING STRUCTURE, GEOTHERMAL LOOP STRUCTURE HAVING SAME, AND GEOTHERMAL LOOP CONSTRUCTION METHOD

摘要

Disclosed is a coupling structure, connected to an end part of a geothermal pipe forming a geothermal loop. According to the present invention, the coupling structure has a coupler comprising: a cylinder unit of which a lower portion is fastened to the end part of the geothermal pipe; and a cover unit selectively covering an opening of the cylinder unit. The cover unit can comprise: one or more cover pieces enabling the upper end opening to be closed or opened by rotating around a rotational shaft formed in the circumference of the upper end opening; and an elastic member providing an elastic restoring force to the rotational shaft of the cover piece in the direction of covering the upper end opening.;COPYRIGHT KIPO 2016