SOIL DRILL SAMPLER Russian patent published in 2020 - IPC E02D1/04 

FIELD: sampling; soil science.

SUBSTANCE: invention relates to devices for collection of soil with disturbed structure and can be used for selection of various soil samples in field conditions both for scientific purposes, and for assessment of quality of agricultural lands. Soil drill-sampler comprises a cylindrical bar with a centering handle, made with possibility of rotation, on the upper end of the rod a crank with a handle is fixed, on the lower end – an opening cylindrical shell with cutters, between them is restricting unit with disc, and support platform with pins, guide sleeve and bracket with C-shaped stop. Limiting assembly is made of bushing with three spring retainers, inside which there are balls, cylindrical springs and covers with external thread and slot for screwdriver. On the triangular support platform, there is a central hole with a movable guide sleeve and a vertical pipe with a yoke, bolts, thumbs and an adjustment support bracket with an adjusting bolt and an adjusting stop adjusting bolt, horizontal bracket with a C-shaped internal fork and a signal roller with multi-colored signal windows and a pivotally mounted two-arm lever with an external C-shaped yoke and a pressure bracket.

EFFECT: technical result consists in providing simplicity and ease of sampling soil from different depths with possibility of estimating density of soil.

4 cl, 4 dwg