Soil sampling device of all-casing drilling machine

• Main Author: CUI YUANSHENG
• Format: Patent
• Language: Chinese; English
• Published: 29.07.2022
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a soil sampling device of an all-casing drilling machine. The soil sampling device is mainly used for soil sampling of the all-casing drilling machine in the building field. The working process comprises the following steps: firstly, putting the sleeve in place, then hoisting the soil sampling device B into the sleeve, then rotating the sleeve and driving the soil sampling device B to rotate, cutting a soil body into an annular groove shape by a plurality of drill bits of the sleeve, then cutting a columnar soil body by a soil sampling drill bit A and a soil sampling drill bit B of the soil sampling device B and pushing the soil body into the barrel hopper, and stopping rotation of the sleeve after the barrel hopper is filled with soil. When the gravity hammer continuously descends, the gravity hammer touches the crank arm and drives the crank arm to rotate to separate the left semi-cylinder from the right semi-cylinder, the soil body falls into a soil discarding area under the gravity