Y-shaped insertion core type node

A Y-shaped insertion core type node is used for connecting rod pieces in a space reticulated shell, tubular connecting portions are arranged at the ends of the rod pieces, and the Y-shaped insertion core type node is characterized in that the Y-shaped insertion core type node is provided with three insertion cores used for being connected with the connecting portions of the rod pieces in an inserted mode, and the three insertion cores are integrally connected in a Y shape. Compared with an existing plate-type joint, a bolt-sphere joint, a cast aluminum joint and a hub-type joint, the joint has the advantages of being attractive in appearance, light in weight, easy to manufacture and capable of easily achieving connection between rod pieces, and particularly, the three rod pieces can be gathered at one point in a crossed mode, so that the force transmission direction between the rod pieces does not deflect. According to the utility model, the degree of freedom of modeling design is greatly improved, and the ty