Rock core lossless sampling device for geotechnical engineering investigation

• Main Authors: DAI QUANWEI, DAI FENGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses a rock core lossless sampling device for geotechnical engineering reconnaissance, which comprises a main body shell and a rotating shaft, a telescopic rod is arranged on the lower side of the rotating shaft, the lower end of the telescopic rod is fixedly connected with a connecting disc, the lower surface of the connecting disc is fixedly connected with a sampling shell in a clamping manner, and the sampling shell is fixedly connected with the rotating shaft. A plurality of sets of sawteeth are fixedly connected to the lower end of the sampling shell, a rotating baffle disc is arranged on the lower side of the main body shell, a first screw hole is formed in the middle of the lower surface of the rotating baffle disc in a penetrating mode, a coring pipe is arranged in the middle of the lower surface of the rotating baffle disc in a penetrating mode, and a mounting cover plate is fixedly mounted on the upper side of the main body shell in a clamped mode. And a driving motor is fixed