Efficient automatic bottom support type segmental beam lifting appliance

The utility model discloses a high-efficiency automatic bottom support type segmental beam lifting appliance which comprises an upper lifting piece, a bearing main beam, a bearing secondary beam, a connecting piece, a lifting arm and a bottom support plate, the upper hoisting piece is arranged on the bearing main beam; the number of the load-bearing secondary beams is not less than two, the load-bearing secondary beams are arranged below the load-bearing main beam and are connected with the upper hoisting piece, and the length direction of the load-bearing secondary beams is perpendicular to the length direction of the load-bearing main beam; the connecting pieces are arranged on the secondary bearing beams, each connecting piece is connected with two lifting arms, the lifting arms are symmetrically arranged on the connecting pieces, the bottoms of the lifting arms are connected with bottom supporting plates, and the bottom supporting plates are used for bearing the bottoms of the segmental beams. According t