Telescopic probe for geological and geophysical prospecting device

The invention discloses a telescopic probe for a geology and geophysical prospecting device in the technical field of geophysical prospecting, and the telescopic probe comprises an outer shell and a telescopic mechanism, and an inner shell is rotatably matched in the outer shell; the bottom of the shell is fixedly connected with drills; the telescopic mechanism comprises a power piece, a middle shaft and a clamping mechanism which are sequentially arranged from top to bottom. An output shaft of the power piece is eccentrically connected with a cam; when the cam moves to the most place, the cam abuts against the top of the middle shaft. The middle shaft is in sliding fit with the inner shell, the middle shaft is sleeved with the clamping mechanism, and the clamping mechanism is used for enabling the connecting rod to be clamped on the inner shell when the cam pushes the middle shaft to move downwards; a sensor is fixedly connected to the side, close to the drill bit, of the connecting pipe, and the end, away f