Abstract: A door lock (10) includes a driving device (30) having an outer spindle (36) and an outer handle (38) mounted to the outer spindle (36). A mounting member (56) is rotatably mounted in a compartment (46) of the outer handle (38). A positioning member (72) is movably received in a groove (54) of the outer handle (38). When a lock core (74) disengages from the mounting member (56), the mounting member (56) cannot move along a longitudinal axis but can pivot about a pivotal axis relative to the outer handle (38) to change a positional relationship between first and second holes (64, 66) of the mounting member (56). After the lock core (74) engages with the mounting member (56), the mounting member (56) cannot pivot about the pivotal axis relative to the outer handle (38).

Abstract: A double door coordinator includes a release mechanism mounted in a body fixed in a door frame. A restraining mechanism is operably connected to the release mechanism. An actuation mechanism is pivotably connected to the body, is restrained by the restraining mechanism, and includes a buffering spring. When the inactive door is in a non-closed position, the restraining mechanism restrains the actuation mechanism to prevent the active door from pivoting to the closed position. When the inactive door is in the closed position, the release mechanism actuates the restraining mechanism to a position not hindering movement of the actuation mechanism, permitting the active door to pivot to the closed position. When the active door pivots towards the closed position under action of a large force, the buffering spring absorbs a portion of the large force to reduce damage to the double door coordinator and the active door.

Abstract: A cylindrical lock includes an outer operational device mounted to an outer side of a door, an inner operational device mounted to an inner side of a door, and a latch device between the inner and outer operational devices. The inner operational device includes an inner spindle and a locking driving device mounted in the inner spindle and connected to a burglarproof system. The locking driving device includes a motor for moving a driving member to perform a locking function setting or an unlocking function setting. Thus, the cylindrical lock in the locking state will not turn into the unlocking state even if power failure occurs. Likewise, the cylindrical lock in the unlocking state will not turn into the locking state even if power failure occurs.

Abstract: A panic exit door lock includes an inner cylinder seat. A shield is formed on the inner cylinder seat and includes a window. A driving block is pivotably connected to an actuating block operably connected to an outer lock core. The driving block includes a sleeve portion mounted around the actuating block. A flange is formed on the sleeve portion and is operably connected to a limiting member. An indicator member is pivotably connected to the inner cylinder seat and includes an indicator having a first portion indicating the limiting member is in a release position in which rotation of a handle retracts a latch and a second portion indicating the limiting member is in a blocking position in which the handle can not be rotated to retract the latch. One of the first and second portions is aligned with the window to indicate the position of the limiting member.

Abstract: A virtual touch-control lock includes a processing module electrically connected to a latch device. A storage module, at least one image pick up device, and an input platform including a transparent or non-transparent non-touch-control screen are electrically connected to the processing module. The input platform is configured to permit a user to proceed with handwriting on the input platform and/or touching the input platform. The at least one image pick up device picks up a handwriting trace of the handwriting and/or the touching sequence. The handwriting trace and/or the touching sequence is transmitted to the processing module and is compared with authorized door-opening identification information stored in the storage module. The identification result is used to control movement of a latch of the latch device from the latching position to the unlatching position or to permit the latch to move from the latching position to the unlatching position.

Abstract: A door access control system (9) with a cloud function includes a door lock (10) mounted to a door (435). A door lock controller (611) is mounted in the door (435) and is electrically connected to the door lock (10). A wireless charging device (511) is electrically connected to the door lock controller (611). A main control unit (659) is provided for operating the door lock controller (611). The door access control system (9) further includes a cloud server (711) that can be connected to the door lock controller (611). The main control unit (659) can be connected to and log in the cloud server (711).

Abstract: A door access control system (9) includes a door lock (10) mounted to a door (435). A door lock controller (611) is mounted in the door (435) and is electrically connected to the door lock (10). A wireless charging device (511) is electrically connected to the door lock controller (611). A main control unit (659) is provided for operating the door lock controller (611). At least one passive door opening unit (673) is provided to conduct induction with the door lock controller (611) to unlock the door lock (10).

Abstract: A push/pull operating device includes first and second operational devices mounted to two sides of a door. The first operational device includes a first bracket having two slots. A fixing plate is pivotably mounted to the first bracket. Two engaging rods extend through the slots of the first bracket. The fixing plate can be pivoted to a position where through-holes in a latch device and through-holes are aligned with the engaging rods. Thus, the push/pull operating device can be used with differently handed doors and different latch devices having different through-hole locations.

Abstract: An outer operating device for a door lock includes a mounting plate mounted to an outer side of a door. A driving wheel is pivotably mounted in a mounting seat fixed to the mounting plate. A driving member is pivotably mounted in the mounting seat and meshes with the driving wheel. A distal end of the driving member is operably connected to a latch of a latch device. A handle is pivotably mounted to the mounting seat and includes a lever. A movable block is slideably received in the driving wheel and includes a notch. When a pressing end of the lever is not aligned with the notch of the movable block, the latch can be retracted to an unlatching position by pivoting the handle. When the notch is aligned with the notch of the movable block, the latch cannot be retracted by pivoting the handle.

Abstract: A panic exit door lock includes an outer operational device mounted to an outer side of a door, an inner operational device mounted to an inner door of the door, a lock mounted in the door, and a locking mechanism mounted between the inner and outer operational devices and the lock. The locking mechanism includes an outer cylinder mounted to the outer operational device and an inner cylinder mounted to the inner operational device. An indicator member is operably connected to the inner cylinder and a setting member. The setting member is connected to a transmission block. When a key is used to set a locking function of the inner or outer cylinder, the transmission block and the indicator member pivot jointly. A user can see whether the locking function is set by observing the position of the indicator member via a window of an inner cylinder seat.

Abstract: A cylindrical lock includes an outer operational device mounted to an outer side of a door, an inner operational device mounted to an inner side of a door, and a latch device between the inner and outer operational devices. The inner operational device includes an inner spindle and a locking driving device mounted in the inner spindle and connected to a burglarproof system. The locking driving device includes a motor for moving a driving member to perform a locking function setting or an unlocking function setting. Thus, the cylindrical lock in the locking state will not turn into the unlocking state even if power failure occurs. Likewise, the cylindrical lock in the unlocking state will not turn into the locking state even if power failure occurs.

Abstract: A latch assembly with an anti-picking function includes a bracket mounted in a door and located at a top or bottom end of the door. A movable member is slideably received in the bracket. A lever is pivotably mounted in the bracket. A positioning member includes a first pivotal portion pivotably connected to the movable member. The positioning member and the movable member can move jointly. The positioning member further includes a second pivotal portion pivotably connected to the lever. When the lever pivots, the positioning member pivots and actuates the movable member to move, causing movement of a latch between a latching position and an unlatching position. When the latch is in the latching position, a lug of the positioning member abuts against the movable member to prevent the latch from moving from the latching position to the unlatching position by picking.

Abstract: A latch assembly (10) is mounted to a follower door (275) of a double door (257) and includes a latch (231) and a pressing board (453) pivotably received in a cutout (411) of the latch (231). When the follower door (275) moves from an open position to a closed position, a pressing side (457) of the pressing board (453) is pressed by a top beam (35) of a door frame (31). The pressing board (453) pivots and presses against a bottom face (413) of the cutout (411) of the latch (231), moving the latch (231) from an unlatching position to the latching position until the pressing side (457) of the pressing board (453) completely enters the cutout (411), and then a slant face (236) of the latch (231) presses against the door frame (31), causing movement of the latch (231) from the latching position to the unlatching position.

Abstract: A latch assembly with an anti-picking function includes a bracket mounted in a door and located at a top or bottom end of the door. A movable member is slideably received in the bracket. A lever is pivotably mounted in the bracket. A positioning member includes a first pivotal portion pivotably connected to the movable member. The positioning member and the movable member can move jointly. The positioning member further includes a second pivotal portion pivotably connected to the lever. When the lever pivots, the positioning member pivots and actuates the movable member to move, causing movement of a latch between a latching position and an unlatching position. When the latch is in the latching position, a lug of the positioning member abuts against the movable member to prevent the latch from moving from the latching position to the unlatching position by picking.

Abstract: A lock cylinder is mounted to an outer operating device of a door lock. The lock cylinder includes a lock core and an actuating block fixed to the lock core. The actuating block includes first and second lugs operatively coupled with the outer operating device. A key can be inserted into the lock core to pivot the lock core between an initial position and a non-initial position. When the lock core is in the non-initial position, the first lug permits a latch of the outer operating device to be moved from a latching position to an unlatching position by operating the outer operating device. When the lock core is in the initial position, the second lug prevents the latch from being moved from the latching position to the unlatching position by operating the outer operating device.

Abstract: A driving member (44) for an outer operational device (13) of a door lock includes a base portion (440) engaged with a connection member (595). The base portion (440) includes an engagement groove (449) having teeth (450). The connection member (595) and the base portion (440) are movable between a releasing position and a push position when a handle (197) is pivoted. A pressing rod (442) is detachably engaged with the base portion (440) and includes an insertion block (446) received in the engagement groove (449), with teeth (447) of the insertion block (446) engaged with the teeth (450) of the base portion (440). The pressing rod (442) and the base portion (440) are jointly movable. The pressing rod (442) has a driving end (445) operatively connected to a pressing member (155) of a latch device (12) having a latch (124) operatively connected to the pressing member (155).

Abstract: A door lock (3) includes a latch device (30) and an inner operational device (20) mounted to a first side (1A) of a door (1) and an outer operational device (16) mounted to a second side (1B) of the door (1). The inner and outer operational devices (20, 16) can be operated to retract a latch (38) of a latch device (30) from an extended, latching position to a retracted, unlatching position. A tooth (223) on an actuator (219) of the outer operational device (16) breaks if a large force is applied to a handle (197). A spindle (191) pivots freely without moving the latch (38), preventing damage to components of the outer operational device (16) and the latch device (30). A base (811) of the latch device (30) can be comprised of first, second, and third plates (813, 847, 883) to allow sheet metal processing without sacrificing structural strength.

Abstract: A latch assembly (10) is mounted to a follower door (275) of a double door (257) and includes a latch (231) and a pressing board (453) pivotably received in a cutout (411) of the latch (231). When the follower door (275) moves from an open position to a closed position, a pressing side (457) of the pressing board (453) is pressed by a top beam (35) of a door frame (31). The pressing board (453) pivots and presses against a bottom face (413) of the cutout (411) of the latch (231), moving the latch (231) from an unlatching position to the latching position until the pressing side (457) of the pressing board (453) completely enters the cutout (411), and then a slant face (236) of the latch (231) presses against the door frame (31), causing movement of the latch (231) from the latching position to the unlatching position.

Abstract: A panic exit door lock includes an outer operational device mounted to an outer side of a door, an inner operational device mounted to an inner door of the door, a lock mounted in the door, and a locking mechanism mounted between the inner and outer operational devices and the lock. The locking mechanism includes an outer cylinder mounted to the outer operational device and an inner cylinder mounted to the inner operational device. An indicator member is operably connected to the inner cylinder and a setting member. The setting member is connected to a transmission block. When a key is used to set a locking function of the inner or outer cylinder, the transmission block and the indicator member pivot jointly. A user can see whether the locking function is set by observing the position of the indicator member via a window of an inner cylinder seat.