Open caisson blade foot sinking device

The utility model discloses an open caisson blade foot sinking device, which belongs to the technical field of open caisson construction and comprises a base, a support frame fixedly mounted at the upper end of the base, a hydraulic oil cylinder slidably mounted at the upper end of the support frame, a mounting plate fixedly mounted at the output end of the hydraulic oil cylinder, and pressing plates slidably mounted on two sides of the lower end of the mounting plate. A connecting plate is connected between the pressing plates in an inserted mode, an electric telescopic rod is fixedly installed on one side of the supporting frame, a well body is arranged at the position, below the pressing plates, of one side of the base, a round pipe is fixedly installed on one side of the electric telescopic rod, a lifting rod is connected into the round pipe in an inserted mode, and one end of the lifting rod makes contact with the well body. Well bodies of different sizes can be pressed and sunk by adjusting the position