Segmented jacking type printing platform for building 3D printing

The utility model relates to the technical field of printing platforms, and discloses a building 3D printing segmented jacking type printing platform which comprises a main body frame, the main body frame comprises a bottom plate, a frame body and a supporting assembly, the frame body is connected with the bottom plate through the supporting assembly, a walking mechanism is arranged at the bottom of the bottom plate, a plurality of jacking plates are arranged at the top of the frame body, and the jacking plates are connected with the bottom plate through the supporting assembly. Jacking mechanisms are arranged at the bottoms of the multiple jacking plates correspondingly. The surface of the printing platform is divided into a plurality of jacking plates capable of independently lifting, the jacking plates are lifted to the same height during printing to form a printing plane, the platform can be moved to a maintenance area after printing is completed, and when the strength of a component meets the carrying co