Detachable and reusable device for reinforcing deformation joint formwork and use method

The invention discloses a detachable and reusable device for reinforcing a deformation joint formwork. The detachable and reusable device is characterized in that the detachable and reusable device comprises at least two four-bar mechanisms which are in mutual series, and a screw rod and fastening nuts which mutually connect the two four-bar mechanisms in series, the four-bar mechanisms refer to square four-bar mechanisms which are formed by mutually and rotatably connecting rod pieces with same length, and the four-bar mechanisms which are in mutual series refer to that a tail pivot point ofa first four-bar mechanism is a head pivot point of a second four-bar mechanism; and the screw rod connects the four-bar mechanisms which are in mutual series in unified series, and the two fasteningnuts are arranged at the tail of the four-bar mechanism at the tail in a sleeving mode. According to the detachable and reusable device and method, the construction quality and construction efficiencyof the deformation joint f