Fixed-point surveying and mapping monitor for surface movement and deformation of goaf

The invention relates to the technical field of monitors, in particular to a fixed-point surveying and mapping monitor for surface movement and deformation of a goaf. Comprising a monitoring assembly; the monitoring assembly is used for monitoring the earth surface movement deformation condition of the goaf; the fixed-point surveying and mapping monitor for the surface movement and deformation of the goaf further comprises a driving disc; the driving disc is fixedly connected to the lower end of the monitoring assembly; a substrate; the base plate is positioned below the driving disc; a screw rod; one end of the screw rod is rotationally connected to the lower end of the driving disc, and the other end of the screw rod penetrates through the base plate and is in spiral transmission connection with the base plate; the other end of the screw rod is conical; a first gear and a second gear are arranged between the driving disc and the base plate. The driving disc is treaded to drive the screw rod to move, and the