An underwater soil sampling device

CN117213905BActive Publication Date: 2026-06-19HARBIN ENG UNIV

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: HARBIN ENG UNIV
Filing Date: 2023-09-26
Publication Date: 2026-06-19

AI Technical Summary

Technical Problem

Existing underwater soil sampling devices are difficult to control precisely, which may damage the small animal communities in the samples. They are also not suitable for unmanned underwater robot operations and have poor adaptability.

Method used

An underwater soil sampling device was designed, which adopts a frame, a lead screw motor, a lead screw pair, a three-jaw chuck, and a sampling mechanism. Combined with a worm gear mechanism, it realizes the switching of multiple tubular samplers for sampling. Soil samples are collected by drilling with a drill bit, and the sampling tubes are switched through the three-jaw chuck and the worm gear mechanism, thereby improving sampling efficiency.

Benefits of technology

This technology enables the acquisition of multiple soil samples in a single dive, improving work efficiency, reducing the time and economic cost of underwater soil sampling, and adapting to the needs of different soil environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

An underwater soil sampling device comprises a frame, a lead screw motor, a lead screw pair, a three-jaw chuck, a sampling motor, and a sampling mechanism. A circular disc and a geared disc are arranged side-by-side and rotatably mounted on a drive shaft, which is fixedly connected to the frame. Multiple tubular samplers are circumferentially mounted on the circular and geared discs. Each tubular sampler can slide axially on the geared and circular discs. A latch is provided on the surface of the circular disc to allow the tubular sampler to be radially positioned when no axial external force is applied. The teeth on the geared disc mesh with a worm gear driven by a motor, which is fixed to the frame. The lead screw of the lead screw pair is rotatably mounted on the frame, with one end connected to the output end of the lead screw motor. The three-jaw chuck and the lead screw pair's nut are fixedly connected to the frame. The sampling motor is mounted on the frame. This invention has a compact structure, allows for switching between multiple tubular samplers, reduces underwater soil sampling time, and improves work efficiency.

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