▎ 摘　　要

NOVELTY - The structure has a cylinder body (1) whose lower end opening is connected with a cylinder cover (2) by a screw thread. A front end of the cylinder cover is fixedly installed with a rotating handle (3). A central position of an inner wall of a top end of the cylinder body is vertically installed with a fixed column (4) through a bearing. A central position of the fixed column is vertically installed with a bidirectional threaded rod (5) through the bearing. An end of a spring is vertically installed between an upper end of a rotating shaft and a lower end of a pressing roller (22). USE - Protective structure for graphene coiled material sleeve. ADVANTAGE - The structure is convenient to fix graphene coiled material in the cylinder body, can support the graphene coiled material with different inner diameter of the paper cylinder so as to avoid excessive abrasion caused by shaking of the graphene coiled material in the cylinder body. The structure clamps the roll layer of the graphene coiled material tightly so as to avoid loose of the graphene coiled material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for utilizing protective structure of a graphene coiled material sleeve. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a protective structure. Cylinder body (1) Cylinder cover (2) Rotating handle (3) Fixed column (4) Bidirectional threaded rod (5) Pressing roller (22)