Resin rod piece connecting structure for on-orbit construction of space structure

The invention discloses a resin rod piece connecting structure for in-orbit construction of a space structure, relates to the technical field of aerospace, and solves the problem that the cambered surface ultrasonic connecting quality and stability of in-orbit space resin rod pieces are difficult to guarantee. The device comprises a longitudinal beam and a longitudinal beam joint, wherein the longitudinal beam and the longitudinal beam joint are of a cylindrical structure; one end of the longitudinal beam is connected with the beam rod, the other end of the longitudinal beam is provided with a connection locking structure, and a locking structure and a plurality of energy guide ribs are arranged in the connection locking structure; one end of the longitudinal beam connector is connected with the beam rod, a locking groove is formed in the other end of the longitudinal beam connector, the end, provided with the locking groove, of the longitudinal beam connector is inserted into the connecting locking structure