▎ 摘　　要

NOVELTY - The floor has a floor main body (1) whose side is formed with an edge side opposite stress groove (2). A middle position of a bottom unit of the floor main body is provided with a middle disk seat. The middle disk seat is provided with a side disk sleeve ring. Inner side of an outer ring of the floor main body is provided with an outer ring separating ring. Inner side of an elastic sleeve is provided with an inner graphene layer. A top unit of an inner unit of the middle disk seat is provided with a heat insulating resin layer. USE - Building floor. ADVANTAGE - The floor has prolonged service life, better pedal comfortable feeling and spontaneous heat for protecting the floor main body, and generates heat during trampling, so that internal hot air flow forms circulation, and prevents from internal local heat flow accumulation. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the building floor. Floor main body (1) Edge side opposite stress groove. (2)