Instrument is restoreed to tubular product surface pit

The utility model discloses an instrument is restoreed to tubular product surface pit, attack the head including root cone form lead screw, an annular, the annular attack the head and be one section outward appearance and personally submit the cylindric column body, the axis of personally experiencing sth. Part of the body along the column at the inner chamber center part of the column body is provided with the screw hole of taper, the cylindric column body form to embracing by several, several are separated into along the axis direction to the column body, several external week of column is tied up by the elastomer, the taper lead screw attack the screw hole phase-match of first inner chamber with the annular. The utility model discloses an instrument is restoreed to tubular product surface pit is light, the environmental protection, easily carry, convenient operation. The restoration at nonrust steel pipe, aluminum pipe, copper pipe pit position can be accomplished in short-term to this instrument, and it needs the oxy arc heating, wastes time and energy and the difficult scheduling problem of repairing to solve metal tubular product, has extensive popularization prospect and in-service use meaning in the society.