FIELD: locks.
SUBSTANCE: invention relates to a block lock. Block lock (3) for connection of two ends of chain (2) in locked state has two opposite halves (7, 8) of locking lock, which engage with each other and are locked to form two receiving holes (5). Block lock halves (7, 8) in the area of rotary end (10) are connected to each other with possibility of rotation, so that halves (7, 8) of the block lock can be moved to the open position or into the locked position when the turn movement is performed. Block lock halves (7, 8) in locked position on opposite fixing end (11) with geometrical closure engage with each other and are locked.
EFFECT: enabling the design simplification.
10 cl, 11 dwg
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