Building transformer convenient to disassemble and assemble

The transformer comprises a transformer body, a bottom plate is arranged at the bottom of the transformer body, shells are fixedly connected to the front side and the rear side of the two sides of thebottom of the transformer body, fixing mechanisms are arranged in inner cavities of the shells, and the fixing mechanisms are fixedly connected with the front side and the rear side of the bottom ofthe transformer body. Fixing grooves used in cooperation with the fixing mechanisms are formed in the two sides of the bottom plate, a movable groove is formed in the side, away from the bottom plate,of the bottom of the shell, and a limiting mechanism used in cooperation with the fixing mechanisms is arranged in an inner cavity of the movable groove. Through cooperative use of the transformer body, the bottom plate, the shell, the fixing mechanism, the fixing groove, the movable groove, the limiting mechanism, the first through hole, the second through hole, the third through hole and the fourth through hole, the prob