Hydraulic lifting device for building installation

The hydraulic lifting device for building installation comprises a bottom plate, a top plate of the same specification is arranged at the top of the bottom plate, a traction assembly is arranged between the top plate and the bottom plate, driving mechanisms are arranged on the surface of the bottom of the top plate and the surface of the top of the bottom plate, and the traction assembly is in transmission connection with the driving mechanisms. Compared with the prior art, free selection can be carried out according to the lifting height, the problem that the height of the elevator is limited is solved, compared with an existing lifting mode of a lifting rope, mounting and dismounting of the containing frame are more convenient, a knotting mode is not needed, and the lifting efficiency is improved. The mounting position can be selected according to the conveying position, compared with a single-rope lifting structure, the stability is higher, the placing frame cannot slide in the lifting process, and therefo