Soil sampling device for geological exploration

The utility model discloses a soil sampling device for geological exploration. The sampling device comprises a rack and a sampling cylinder, a sampling motor is horizontally mounted on one side of theupper part of the rack; a second bevel gear is mounted at the tail end of a driving shaft of the sampling motor; the second bevel gear is meshed with the first bevel gear; the first bevel gear is sleeved outside the rotating shaft; the bottom end of the rotating shaft is connected with the top center of the sampling cylinder through bolts; a pressure plate is mounted at the top of the spindle; two sides of the pressure plate are respectively connected with the upper ends of pull ropes; the lower ends of the two pull ropes are respectively fixed in the winding drum; the winding drum is horizontally mounted on one side of the top of the auxiliary rack; the utility model is advantageous in that the structure is simple, the positioning block is pushed by the cylinder to be kept at the lower opening of the straight cy