Device for installing embedded sleeve in large-size concrete structure

The utility model discloses a device for installing an embedded sleeve in a large-size concrete structure. The device comprises an embedded formwork, a structure formwork, an outer cover formwork, a lead screw, an end fixing piece and a reinforcing sleeve. The lead screw is arranged on the pipeline central axis of the embedded sleeve; the embedded formwork, the outer cover formwork and the end fixing piece sequentially penetrate through the lead screw from inside to outside and are arranged at one end of the embedded sleeve in a tightly attached mode. The embedded template is arranged in the embedded sleeve, and the structural template is arranged at the end part of the embedded sleeve in a sleeving manner; the end fixing piece is arranged on the screw rod in a penetrating manner and is arranged on the outer side of the outer cover template; and the structure of the other end of the pre-embedded sleeve and the structure of one end of the pre-embedded sleeve are symmetrically arranged. According to the utility