BOLT Russian patent published in 2012 - IPC F16K31/60 

FIELD: machine building.

SUBSTANCE: bolt comprises a body with seats and inlet and outlet pipes, mounted on the housing cover, in a central aperture of which a gland seal of a spindle is placed, connected to the gate, and the free end of the spindle is provided with a threaded portion on which the stem nut is installed, kinematically connected to the hub flywheel, installed in parallel to the axes of the inlet and outlet, with the axis of the spindle inclined to the axis of the outlet pipe at an acute or obtuse angle, on the housing cover the bearing housing with supporting bearings are fixed, in which in the threaded bush is installed, on its surface on the side of its upper end a bevel gear is rigidly fixed, and on the bearing housing a bearing shell is fixed, on which the flywheel hub leans with an ability of rotation, made in the form of a cylindrical wheel with internal toothed gearing, connected by gearing with a bevel gear with a threaded barrel, and on the hub of the flywheel a protective cover is installed, through the cover the upper threaded section of the flywheel spindle is passing, located in the cap put on it, rigidly connected to the protective cover, in which a longitudinal slot is made, through which in the upper part of the spindle a gate position indicator is inserted.

EFFECT: increased reliability design of the bolt and while simplified formation of pipeline valves binding of manufacture equipment.

1 dwg