Sampling device for geotechnical engineering investigation

Abstract

The utility model belongs to the technical field of rock soil sampling tools, and particularly relates to a sampling device for geotechnical engineering investigation, which comprises a sampling barrel, a conical head, a brushing mechanism and a pressure applying piece, the outer side of the sampling barrel is provided with scale marks for indicating the insertion depth, and the bottom of the sampling barrel is connected with the conical head to reduce the insertion force. The sampling window reduces sample soil disturbance and improves sampling precision through arc angle design; the brushing mechanism comprises a sealing piece, a sealing plate, bristles and a hand lever, the sealing piece is attached to the sampling window to achieve the sealing function, meanwhile, the bristles brush soil loosely and guide the soil sample into the sampling barrel, and a guide groove in the sealing plate is matched with a guide strip of the sampling barrel to ensure that the position of the sealing piece is accurate; the top of the sealing head is sealed through a circular-truncated-cone-shaped design. The conical head is fixed with the connector through the connecting thread, and a clamping groove is formed in the outer side to facilitate disassembly and maintenance.

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