Device for protecting lifting inserts having a tubular body during their embedding in a prefabricated concrete component

摘要

A device for protecting lifting inserts having a tubular body during embedding in a concrete component, comprising an elastically deformable element insertable in the axial end of the tubular body of the lifting insert directed toward the outside of the prefabricated component engageable for lifting the prefabricated component. The elastically deformable element occupies an axial portion of the tubular body starting from axial end. The device comprises expansion elements, which act on the elastically deformable element to cause a radial expansion thereof through the elastically deformable element engaging whereby the inside walls of the tubular body to prevent infiltration of concrete through the axial end of the tubular body of the lifting insert.