Folding device

A folder comprises a folder body, a handle and a locking mechanism, the folder body comprises a first folder unit and a second folder unit which are hinged to each other, the locking mechanism comprises a locking assembly and a springback assembly, and the handle is hinged to the first folder unit. The locking assembly comprises a first locking unit arranged on the handle and a second locking unit arranged on the second folder unit. The rebounding assembly is arranged between the folder body and the handle and comprises a first spring and a rebounding piece, and the rebounding piece applies reverse acting force to the handle and the second folder unit which are close to each other under the action of the first spring. By the adoption of the technical scheme, when the folder is locked, the handle overcomes the force of the first spring to rotate around the hinged position, so that the first locking unit and the second locking unit get close to each other and are locked. After the locking assembly is unlocked,