PROTECTIVE SEALED ROTARY GATE FOR METRO MAIN LINE TUNNEL Russian patent published in 2016 - IPC E21F17/12 

FIELD: construction.

SUBSTANCE: invention relates to subways and is intended for construction and operation of metro tunnels and other underground structures. Said technical result is achieved by that drive of sealing mechanism of drainage gutter is located in space of drainage gutter, drive housing is pivotally mounted, and shaft is mounted in bearings on a frame, concreted in track concrete of main line tunnel. On shaft is mounted a lever, pivotally connected with eye lug drive rod, and by one end are fixed levers, second ends of which are pivotally connected with additional levers, pivotally connected by second ends with axis of bracket of shutter, on which by one end is pivotally mounted a suspension, end of which is pivotally mounted on axis of bracket installed on frame above covering of opening.

EFFECT: simplified design of sealing mechanism of drainage gutter.

1 cl, 8 dwg