A zipper lock has a combination locking system defined by dials and clutches and a key overriding mechanism. The lock has a pole to receive zipper pullers and a movable cover plate to block the pole when the lock is in the locked mode. The lock has a control plate with release slots. The control plate can be shifted only if the dials are set to the correct combination or when a correct key is used to turn a tumbler cylinder. The cover plate is engaged with a latch having a latch finger. When the lock is in the locked mode, the latch finger is blocked by the control plate, restricting movement of the latch. When the lock is in the unlocked mode, the latch finger can be moved into a release slot, allowing the latch and cover plate to move in order to clear the pole.

A lock comprises an upper casing and a base plate connected to each other; between the upper casing and the base plate there is an accommodation space in which the locking device is. The locking device consists of a locking hook coordinated with the receiving hole at the top surface of the upper casing and a control unit to control the movement of the locking hook. The locking hook has a hook portion which can access the bottom end of the receiving hole and a connecting portion controlled by the control unit. At the left side of the receiving hole which the hook portion faces to, there is a side plate comprising an inclined upper part and a vertical part at the lower end, and the inclined part tilt outward towards the top surface of the receiving hole for locking two zipper pull tabs together conveniently.

An opening and closing device is provided, including a fixing device and a limiting device. The fixing device includes a fixing portion and a fixing member, and the limiting device includes a driving device, a limiting portion, and a limiting member. The fixing member may rotate to be engaged with the fixing portion. The driving device is disposed on a first shell. The limiting portion is disposed on an inner side of the first shell. The limiting member is disposed on an inner side of a second shell. When the first shell approaches the second shell, the limiting member end portion may be engaged with the limiting portion. The driving device may be subjected to an external force to release the engagement between the fixing member and the fixing portion and the engagement between the limiting member end portion and the limiting portion.

An automatic messy code character wheel coded lock includes a housing and a lock case capable of rotating with respect to the housing provided on the housing in a penetrating mode. A lock cylinder assembly is provided in one end of the lock case, and a lock piece is connected to the other end of the lock case. A character wheel shaft is provided in the housing. Several bushings are sleeved on the character wheel shaft. Each bushing is sleeved with a character wheel capable of driving the bushing to rotate together or rotate relatively. Several code characters are provided on a side wall of the character wheel. Each character wheel is provided with a pair of character wheel magnets having opposite poles, and the character wheel shaft is provided with one character wheel shaft magnet corresponding to each pair of character wheel magnets.

A padlock comprising a body/housing which contains a fin-catcher and a plate-hole to receive the coupling-plate, a shackle which contains a short-leg and long-leg, so that the short-leg can move away from the locking-hole to control the locking and opening position, a plurality of clutches to prevent the lock from being opened when the dials are not in a lock open by combination code, and a plurality of dials to control the rotational movement of the clutches.

The invention relates to a mechanical lock (37) for a plurality of keys (26) that can be authorized with a different code (39), with discriminated opening using a selection device (1) that can be activated manually from outside, a signaling element for displaying the selected code (2) (3), a manual closure (4) and locking (19) (15) mechanism, integrated with a modular set of lockers (FIG. 15) for delivery home and collection of parcels. The invention allows the use of a limited number of modular lockers for a larger set of users without requiring computer applications, electricity or an internet connection during the delivery, which is especially for common areas of communities of residents, building lobbies, housing estates, shared spaces or offices.

A lock has a hook and a locking finger to form a locking loop. The hook is fixedly attached to the lock body, whereas the locking finger can be pivoted to disengage from the hook to open the lock. The pivotal movement of the locking finger is controlled by a latch and an extended edge. The latch has a tip and the locking finger has a cut-out to receive the tip when the lock is locked. When the lock is locked, a spindle prevents the extended edge from moving toward the latch for releasing the tip from the cut-out. When the lock is opened by the combination mechanism, the spindle is moved away to allow the extended edge to move toward the latch to release the tip from the cut-out. When the lock is opened by the key mechanism, turning the cylinder causes the extended edge to move the latch downward.

A lock for computer security has housing comprising a bottom wall, at least one side wall and a front wall with a corner region defined adjacent to both the bottom wall and the at least one side wall. A combination-based locking assembly comprises a locking assembly body holding at least two locking elements including a main locking element and a movable locking element, both said locking elements being supported by the locking assembly body, and the main locking element extending from and away from the locking assembly body at the front wall of the lock housing. A driver is coupled to the movable locking element, configured to selectively move the movable locking element in frontwise and rearwise directions, and controlled by a locking mechanism. The locking assembly is secured to the housing at the corner region thereof, with the locking elements located directly adjacent both the bottom wall and the at least one side wall. A key-based lock enables overriding the combination-based locking assembly to unlock the movable locking element even while the combination lock is in a locked state.

A combination lock is provided, the lock having a latch movably mounted to a housing of the lock for movement between a locked position and an unlocked position; and a bolt movably mounted to the housing of the lock for movement between a first position and a second position, wherein the combination lock is a key-controlled combination changing permutation lock wherein a button disposed away from a rear exterior surface of the housing in a first direction rearwardly away from the rear exterior surface is depressed in order to change the combination of the combination lock and the housing has a button protection feature extending rearwardly away from the rear exterior surface of the housing in the first direction proximate to the button and the button protection feature extends farther away from the rear exterior surface of the housing in the first direction than the button.

An automatic messy code character wheel coded lock includes a housing and a lock case capable of rotating with respect to the housing provided on the housing in a penetrating mode. A lock cylinder assembly is provided in one end of the lock case, and a lock piece is connected to the other end of the lock case. A character wheel shaft is provided in the housing. Several bushings are sleeved on the character wheel shaft. Each bushing is sleeved with a character wheel capable of driving the bushing to rotate together or rotate relatively. Several code characters are provided on a side wall of the character wheel. Each character wheel is provided with a pair of character wheel magnets having opposite poles, and the character wheel shaft is provided with one character wheel shaft magnet corresponding to each pair of character wheel magnets.