DEVICE FOR SHUTTING OFF PIPELINE Russian patent published in 2020 - IPC F16L55/10 F16K3/06 

FIELD: auxiliary devices for pipeline network.

SUBSTANCE: invention relates to auxiliary devices for pipeline network intended to shut off flow of working medium in pipeline or tight separation of adjacent cavities of pipelines during operation, as well as for emergency, repair and diagnostic work for production purposes. Proposed device comprises mating flanges with bosses, mounting pins with nuts, swing bracket with two inserts in form of blind and circular discs. Device additionally contains a shaft installed by means of bearings in holes of bosses, which is connected to the driven link of the self-braking reduction gear with possibility of their joint rotation by the driving link of the reduction gear. At the same time the self-braking reduction gear housing is fixed on one of the bosses. Swing bracket with inserts is rigidly fixed on the shaft and is kept from spontaneous rotation by the driven link of the self-braking reduction gear.

EFFECT: invention will make it possible to increase safety and mechanization of work when performing swapping of swing bracket with inserts due to application of self-braking reduction gear.

1 cl, 1 dwg