BAYONET LOCK Russian patent published in 2015 - IPC F16J13/20 

FIELD: machine building.

SUBSTANCE: lock is intended to lock covers of vessels, devices and end sections of pipeline under high pressure. The lock contains a hollow casing and cover with elements of the bayonet connection with possibility of rotation on the bearing assembly axis, sealing components, device for system pressure relief and lock of cover rotation relatively casing, gear for cover movement along axis and circle. The cover is secured in the swinging lever of the rotating support in radial-thrust bearing in a sleeve installed on the cover; sealing components are installed in ring slots of the cover; gear for cover movement along axis and circle is made in form of fork rigidly secured on the lock cover, and drive-screw secured in the supports on the lock casing with installed on it cross-arm with sockolet and drive-nut, device for pressure relief and lock of cover rotation relatively to axis is made as lock, its one end is inserted through the casing wall to one of slots, and second end is secured using the bracket on the screw with handwheel installed in pressure relief channel in the casing wall, at that the channel ends with bushing having cone hole, and screw end has cone lug.

EFFECT: invention increases safety, reliability and service life of the design.

4 dwg