Soil sampling device

The utility model provides a soil sampling device, which comprises a drill stem mechanism, a helix power-assisted mechanism and a drill stem vertical control mechanism. The drill stem mechanism comprises a screw rod, an upper end thereof is provided with a handle and a lower end thereof penetrates a nut sleeve and is connected with a drill head. The helix power-assisted mechanism comprises the nut sleeve and a lower end thereof is connected with a horizontal console through a bearing. The outer wall of the nut sleeve is provided with a force applying rod. The drill stem vertical control mechanism comprises the horizontal console and a console top thereof is provided with leveling bubbles. The horizontal console is connected with at least three supporting rods. The supporting rod is provided with a supporting rod telescopic sleeve. The bottom end of the supporting rod is provided with a bearing pad. The utility model has the advantages of complete function, simple structure and convenient use. The helix power-assisted mechanism saves labor and time for soil sampling. Because of the drill stem vertical control mechanism and the supporting rods with adjustable height, the utility model is applicable to the sampling of different landforms. Moreover, the vertical lifting of the drill head can be controlled, consequently inclined and sticking drilling is avoided.