| 主权项 |
1. An electrically operable locking device (400), for locking a gate (402), said locking device (400) comprising:
a frame (200) for mounting said locking device (400) to said gate (402), and a housing (300) slidably movable with respect to the frame (200) between an upper position and a lower position and comprising a drop bolt (302) arranged to move between an extended drop bolt position and an retracted drop bolt position and a mechanical locking mechanism (301) arranged to lock and unlock the housing (300) to the frame (200) and comprising a key-operated cylinder lock (303) to unlock the housing (300) to the frame (200), wherein said gate (402) is locked if said housing (300) is in the lower position and said drop bolt (302) is in the extended position, and wherein said locking device (400) further comprises a resilient element (309) positioned between said frame (200) and said housing (300) and arranged to lift the housing (300) relative to the frame when said housing (300) is unlocked from the frame (200) by operation of said key-operated cylinder lock (303). |
