Soil layer sampling device for prospecting

The utility model discloses a soil layer sampling device for prospecting, including up -sampling pipe, middle sampling pipe and down -sampling pipe, up -sampling pipe, middle sampling pipe and down -sampling pipe are the hollow pipe that the diameter is the same, one is no less than to the number of middle sampling pipe, the number of up -sampling pipe and down -sampling pipe is one, the top and the bottom of up -sampling pipe all are equipped with the external screw thread, the top of middle sampling pipe is equipped with the internal thread, the down -sampling intraduct is close to drill bit department and is equipped with the dog, the dog symmetry sets up, the dog passes through welded mode fixed connection in down -sampling inside pipe wall, the down -sampling intraduct is close to the dog top and locates the articulated baffle that has, be connected with the spring on the baffle, one end fixed connection to the down -sampling inside pipe wall of spring. The utility model relates to a soil layer sampling