| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to aerospace engineering, particularly, to locking of replaceable elements of pressure compartment porthole. Locking mechanism comprises spring-loaded holder and retainer fitted on axle in casing. Retainer is composed of two-arm lever while holder represents lug with flanges. Said flanges are composed of cylindrical rolls arranged on edges of aforesaid lug on retainer side to get in contact by outer surfaces with retainer arm that are furnished with inner shoulder to hold holder in open position by interaction with ledges arranged on the casing and to hold that holder in closed position in interaction with retainer arm. Pressure surface of the lug is provided with elastic lining. Holder and retainer are furnished with individual springs. Holder spring force is lower than that of retainer.EFFECT: ease of use, reliable design.6 dwg |
