A hinge is provided, which includes a V-shaped blade, an intermediate blade and a terminal blade. The V-shaped blade, the intermediate blade and the terminal blade are provided with holes to allow a fixed member to pass through； the V-shaped blade is hinged to one end of the intermediate blade for supporting the bending of a body； another end of the intermediate blade is hinged to the terminal blade for supporting the bending of the body； the strip-shaped grooves on the V-shaped blade, the intermediate blade and the terminal blade can be used to fix the hinge to a surface of the body using a belt or other fixed member, and to make the corrective member stably fix to one side of the body, effectively producing the lateral corrective force； the hinge design of each blade can coordinate the forward bending motion of the body, effectively introducing the corrective force.
