Pre-stress notch template device for prefabricating box girder

The utility model relates to the technical field of box girder prefabrication prestress notch formworks, and discloses a box girder prefabrication prestress notch formwork device which comprises two first formworks, second formworks are arranged at the left ends and the right ends of the adjacent sides of the two first formworks, and fixing pins are fixedly connected to the tops of the front sides and the rear sides of the second formworks. Fixing blocks are fixedly connected to the left sides and the right sides of the fixing pins correspondingly, holes are formed in the tops of the fixing pins correspondingly, and through grooves are formed in the four corners of the adjacent sides of the first mold plate correspondingly. According to the utility model, the fixing pins respectively penetrate through the corresponding through grooves, the fixing blocks are respectively inserted into the corresponding grooves and the clamping plates to rotate, the limiting blocks are used for limiting, and then the fixing bol