FIELD: construction.
SUBSTANCE: safety lock with locking plates, in particular, for armoured doors, comprises a key hole, where the first working key may be inserted for a certain number of locks, a facility to stop action of the above first key by the second key, which may be inserted into the key hole and acts only on this lock, and a facility for activation of at least one element for closure of the lock regardless of the locking plates.
EFFECT: improved operating reliability.
10 cl, 9 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HIGHER SECURITY LOCKING DEVICE | 1994 |
|
RU2078186C1 |
| SAFETY LOCK WITH HIGH FLEXIBILITY OF USE | 2007 |
|
RU2419712C2 |
| LOCKING DEVICE | 1995 |
|
RU2105855C1 |
| SECURITY LOCK | 2010 |
|
RU2493342C2 |
| MAGNETIC LOCK | 1990 |
|
RU2017008C1 |
| LOCKING DEVICE | 2004 |
|
RU2270307C1 |
| DOOR LOCK | 2011 |
|
RU2476657C1 |
| LOCK | 2006 |
|
RU2404342C2 |
| LOCK "ANTIPANIC" | 2009 |
|
RU2395663C1 |
| DOOR LOCK | 2000 |
|
RU2174176C1 |
