Prefabricated and assembled quick connection structure for concrete members

The utility model belongs to the technical field of civil engineering, and particularly relates to a concrete member prefabricating and assembling quick connection structure which comprises a cover beam and an installation mechanism arranged above the cover beam, and the installation mechanism comprises a first prefabricating and assembling assembly and a second prefabricating and assembling assembly; the first prefabricated assembly assembly comprises a cover beam, a pouring opening, a box beam, a supporting block and a first pouring groove, and the pouring opening is formed in the upper left portion of the cover beam. The interior of the box beam is in a trapezoid hollow shape, and when concrete is poured into the box beam, the concrete can be condensed and fixed according to the shape of the box beam; the construction difficulty can be reduced in the splicing process, the reserved steel bars are connected with the first pouring grooves, concrete can flow along with gaps reserved between the first pouring g