The present invention discloses a lock that does not distinguish between public and private spaces and relates to the field of locks, comprising two sub locking systems which have the same structure, wherein the two sub locking systems are arranged mirror symmetrically on two sides. It can be optionally installed on both spaces where privacy is needed and a change of the entire lock is not required, such that all designs of an indoor layout and different requirements for design logics regarding doors are adjusted to, that a locking on both sides in an electrically controlled manner is possible, that rotation of a cylinder on both sides is prevented, and that an unlaching movement on both sides in an electrically controlled manner is possible.

A multipoint lock is described. The multipoint lock includes a main latch. The main latch has a latched position where the main latch is configured to extend a first distance from an unhinged edge of a door panel. The main latch is configured to be retractable toward the unhinged edge of the door panel by rotation of a latch drive hub in each of a clockwise direction and a counterclockwise direction relative to a first side of the door panel. The multipoint lock also includes at least one auxiliary latch and a deadbolt drive hub. Rotation of the deadbolt drive hub substantially simultaneously actuates the main latch and the at least one auxiliary latch.

A door locking device is applied to an electronic apparatus including a hinged door arranged in an opening portion of a casing. The door locking device includes a key cylinder and a pivot hook. When the door is closed and a movable element of the key cylinder is at a locked position, the pivot hook is caught on the casing to prevent the door from being opened. The door locking device further includes a rod member crank-coupled to the movable element of the key cylinder on an inner side of the door and configured to be displaced by interlocking with the movable element. When the door is closed and the movable element is at the locked position, a distal end (roller) of the rod member is held in contact with a rod receiving surface formed in the casing. Thus, the rod member keeps a closed state of the door.

A door locking device is applied to an electronic apparatus including a hinged door arranged in an opening portion of a casing. The door locking device includes a key cylinder and a pivot hook. When the door is closed and a movable element of the key cylinder is at a locked position, the pivot hook is caught on the casing to prevent the door from being opened. The door locking device further includes a rod member crank-coupled to the movable element of the key cylinder on an inner side of the door and configured to be displaced by interlocking with the movable element. When the door is closed and the movable element is at the locked position, a distal end (roller) of the rod member is held in contact with a rod receiving surface formed in the casing. Thus, the rod member keeps a closed state of the door.