Hoisting device and hoisting head

The utility model provides a hoisting device and a hoisting head. The hoisting device comprises a hoisting body and a buffer piece, the hoisting body comprises a hoisting part and a first connecting part used for being fixedly connected with a duct piece. And the buffer piece is arranged between the hoisting part and the first connecting part in a sleeving manner and is used for buffering the acting force of the hoisting part on the duct piece. The first connecting part is fixedly connected with the duct piece, so that the buffering piece arranged between the hoisting part and the first connecting part in a sleeving mode can be in abutting fit with the duct piece, and then the buffering piece can buffer the acting force of the hoisting part on the duct piece; therefore, it is guaranteed that the duct pieces on the periphery of the hoisting hole cannot crack or fall off due to the fact that the acting force between the hoisting part and the duct pieces is too large, and the quality of the assembled duct pieces