Temporary plugging device for reserved hole in building construction

The invention discloses a temporary plugging device for a reserved hole in building construction, and relates to the field of building construction. The temporary plugging device for the building construction reserved hole comprises a plugging disc and a fixing pipe, a positioning supporting mechanism is installed on the outer surface of the front end of the fixing pipe, and an anti-skid mechanism is arranged on the outer surface of the middle of the fixing pipe. According to the temporary plugging device for the building construction reserved hole, by rotating a rotating disc clockwise, an anti-skid plate is ejected outwards, an anti-skid rubber mat on the outer surface of the anti-skid plate abuts against the inner wall of the reserved hole and makes close contact with the inner wall of the reserved hole, and the supporting and anti-skid effects on the tail end of a fixed pipe are achieved; and meanwhile, the front end of the fixing pipe is supported through the positioning and supporting mechanism, then th