THEODOLITE Russian patent published in 2023 - IPC G01C1/02 G01C3/08 

FIELD: geodetic instruments.

SUBSTANCE: claimed invention relates to geodetic instruments. The device contains a sighting channel, on the body of which there are two semi-axes, designed for installation in the coaxial holes of the carrier body. In this case, the supporting body includes a vertical axis and mechanisms for precision guidance of the sighting axis. The precision guidance mechanism comprises a rotatably mounted bushing with an eccentric outer surface and a threaded hole designed to accommodate a threaded pusher with a groove, an additional axle with a protrusion placed in the bushing coaxially with the pusher, a lever mounted on the collar with the possibility of rotation, an insert contacting the lever and designed to interact with the cylindrical surface of the axis of rotation, a hook with an earring mounted on the eccentric surface of the sleeve. At the same time, the clamp is made with a groove in which an insert spring-loaded towards the axis of rotation is located, the hook is mounted on the lever with the possibility of contact with the inner surface of the earring, an additional handwheel is fixed on the sleeve. The main handwheel is rigidly connected to the additional axle, the protrusion of which is placed in the pusher groove.

EFFECT: simplification of the design and elimination of excessive impact on the bearing body, causing a shift in the axis of sight.

1 cl, 4 dwg