Large-span road mechanical bridge erecting mechanism

The utility model relates to the technical field of bridges, and particularly discloses a large-span road mechanical bridge erecting mechanism which comprises a first bridge body and a second bridge body hinged with the first bridge body, and is characterized by further comprising a first mounting seat fixedly connected to the lower surface of the first bridge body and a second mounting seat slidably connected to the lower surface of the second bridge body, a mounting groove is formed in the side, facing the second mounting base, of the first mounting base, a mounting plate matched with the mounting groove is arranged on the second mounting base, first connecting pieces are symmetrically arranged on the two sides of the first bridge body, and second connecting pieces matched with the first connecting pieces are arranged on the two sides of the second bridge body. The problems that a traditional large-span road mechanical bridge erecting mechanism is weak in connecting position and unstable in connection, and