Abstract: The present invention relates to a locking device comprising—a housing (10)—a first bolt (30) comprising a pivotable bolt head (31) connected to a bolt head operator (32), the pivotable bolt head (31) being pivotable around an axis (A) extending from the upper end (11) to the lower end (12) of the housing,—a catch (22) for blocking pivoting of the bolt head (31) in a blocked state of the locking device (1), and—a catch receiver (21) for receiving the catch (22) in an unblocked state of the locking device (1), and further comprising an activation mechanism (40) comprising an activation unit (41) and a transfer mechanism (49) for transferring a movement from the activation unit (41) to the bolt head operator (32), wherein the bolt head operator (32) comprises a control member (33) for controlling the state of the catch (22), wherein rotation of the control member (33) causes the catch receiver (21) to become available to the catch (22) for forming the unblocked state.