BALL VALVE Russian patent published in 2018 - IPC F16K5/06 F16K35/04 

FIELD: machine building.

SUBSTANCE: invention relates to the field of engineering, in particular to rocket and space technology, and is intended as a shut-off valve with a manual drive with protection against abnormal operation during flight loads. In the ball valve, where in the end face of the spring-loaded rod on the side of the retaining member there is a recess with a boring for a spring, the retaining member is movably mounted along and around the vertical axis of the neck of the body and fixed by means of a rod passed through two coaxial ellipsoidal holes perpendicular to the axis in the spring-loaded rod in the walls defined by the recess, and also through two symmetrical, mirror-to-each other longitudinal-transverse through-holes in the neck of the body, with the possibility of subsequent fixation in the extreme positions of the longitudinal-transverse grooves by a spring. Wherein the length of the larger diameter of the ellipsoidal hole in the spring-loaded stem is greater than the distance between the extreme positions of the longitudinally transverse grooves, but does not exceed the length of the spring-loaded stem projection. And the handle is integral with the holding member, and the neck of the housing is provided with a pair of fluoroplastic sliding bearings.

EFFECT: invention provides protection of the valve against abnormal operation under the influence of random and sinusoidal vibration, as well as shock-impulse loads.

3 cl, 3 dwg