INTEGRATED MANUAL GARDEN DRILL Russian patent published in 2020 - IPC E21B3/02 A01C5/04 

FIELD: soil drilling.

SUBSTANCE: invention relates to design of hand drill intended for formation of holes in soil, in particular, during installation of pillars, when planting bushes and trees. Integrated hand drill bit comprises cylindrical bar with working element rigidly secured at its lower end. Handle is made as a composite structure with possibility of smooth adjustment of its length taking into account an anthropological parameters of the operator - chest diameter and length of hands. Rod is composed of two pipes - external and internal, arranged telescopically with possibility of smooth adjustment of rod length considering height and length of legs of operator. Outer pipe on external side has thread pitch of which is equal to step of master nut, which during formation of hole is in contact with master nut, installed on platform of drill.

EFFECT: technical result consists in improvement of labour productivity and quality of formation of holes in soil, reduction in operator fatigue and correct orientation of hole axis in space of soil in required direction.

3 cl, 4 dwg