Fixed elevator for building installation engineering

The utility model relates to the technical field of building construction, in particular to a fixed elevator for building installation engineering, which comprises a traction assembly, the traction assembly comprises a bottom plate and a top plate, the bottom plate is fixed on an outer fixed surface, a guide rod is arranged between the bottom plate and the top plate, the bottom end of the top plate is fixedly connected with a traction machine, and the output end of the traction machine is provided with a traction rope; the lifting assembly comprises a lift car, the top end of the lift car is connected with the traction rope, a sliding sleeve corresponding to the guide rod is arranged on the outer side of the lift car, the guide rod is sleeved with the sliding sleeve, and the sliding sleeve can slide back and forth along the guide rod; the buffering assembly comprises a first buffering part and second buffering parts, the first buffering part is arranged on the bottom plate, the second buffering parts are arra