Multifunctional borehole obstacle detecting device

The invention discloses a multifunctional borehole obstacle detecting device which comprises a wire reel, a wire wound on the wire reel, a length counter, an adapter and at least one pipe. The leading-out end of the wire is connected with the adapter through the length counter. The other end of the adapter is connected with the pipe. The length counter is arranged directly above a borehole where an obstacle is to be detected. The pipe is located in the borehole. When the multifunctional borehole obstacle detecting device is installed and operates, the wire extending through the length counteris perpendicular to the cross section of the borehole and coincides with the center line of the borehole. The device can effectively detect different sizes of boreholes to determine whether the requirements of the safe working environment of a geophysical prospecting or monitoring device are met. 本发明公开了一种多功能钻孔探障装置，包括线盘、缠绕于线盘上的线材、计米器、转接头以及至少一根管材，其中：所述线材的引出端经计米器与转接头连接，转接头的另一端与所述的管材连接；所述的计米器设置于需要探测障碍的钻孔的正上方，所述的管材位于钻孔内；在所述的多功