FIELD: construction.
SUBSTANCE: proposed device comprises housing, cover installed outside the housing, safety plate covering body cavity, key holes coaxially arranged in housing, cover and safety plate. Protective elements are installed in housing cavity and made spring-loaded by springs with possibility of covering key hole of casing, free from key, and with open protective elements and open casing key hole with input of key. Protective elements are made in form of plates with opposite ends of rods, coaxial offset relative to longitudinal axis of plates and which are installed in slots made in housing. At least one rod for each plate is provided with ledge with hole. One end of spring is installed in hole of projection, and other one is installed on pin arranged protruding inside housing. Safety plate is installed on housing on side facing door.
EFFECT: device increases reliability of mechanism and complicate its disassembly and cracking.
4 cl, 8 dwg
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