UPPER ISOLATING VALVE Russian patent published in 2019 - IPC E21B34/10 F16K5/06 

FIELD: valves.

SUBSTANCE: group of inventions relates to shutoff valves and can be used as an upper isolating valve as part of a system for accessing a well. Valve with through channel includes housing, holder with ball, in which through channel is made. Ball is reciprocally rotationally connected to the body by means of at least one connecting element so that the possibility of linear movement of the ball together with the cage in the body with simultaneous rotation of the ball is provided. Roller bearings are installed on the ball rotation axis. Each rolling bearing is formed by rolling path made in ball with balls and ring installed in cage with recesses for balls installation. On the outer side of the rings of each rolling bearing there is a protrusion with a recess, and in the holder there are grooves. Each groove is made under the projection of the rolling bearing ring for their fixation in the cage. In the cartridge there is at least one cutout sufficient for passage of the said at least one connecting element and made longitudinally to the through passage of the valve. Rolling bearing ring is installed so that said groove is oriented towards said cutout.

EFFECT: technical result consists in providing locking functions, possibility of opening valve by forcing and simultaneous provision of high reliability of valve.

12 cl, 5 dwg