Drilling sampling device

The utility model discloses a drilling sampling device, and particularly relates to the technical field of drilling sampling. The drilling and sampling mechanism comprises a movable plate arranged in the frame, a driving assembly is arranged on the bottom side of the movable plate, the output end of the driving assembly is connected with a connecting rod, a sampling drill bit is arranged at the bottom of the connecting rod, and a channel is formed in the middle of the interior of the sampling drill bit; a sampling groove is formed in the bottom end, close to the upper part of the channel, of the connecting rod; and the sampling barrel is embedded in the sampling groove. The sampling barrel is arranged in the sampling groove and provided with the pull block, the pull rod, the clamping column, the second spring and other structures, the clamping column can be controlled to enter or exit from the clamping groove in the sampling drill bit, and therefore the sampling barrel can be rapidly disassembled and assemble