A device for preventing unwanted opening of a locked enclosure includes a lock bolt moveable between a locked position and an unlocked position. A face gear is meshable with and rotatable by the worm gear between locking and unlocking positions when the worm gear is driven in the first and second directions, respectively. A blocker member is rotatable between first and second positions. A biasing member is operatively coupled to the face gear and the blocker member to bias the blocker member in a biasing direction. A sliding member selectively disengages the blocker member to allow the blocker member to rotate in the biasing direction. A lever arm is operatively coupled to the sliding member such that the lever arm is in the disengaged and engageable positions when the sliding member engages the blocker member in the first and second positions, respectively.

A device for preventing unwanted opening of a locked enclosure includes a lock bolt moveable between a locked position and an unlocked position. A face gear is meshable with and rotatable by the worm gear between locking and unlocking positions when the worm gear is driven in the first and second directions, respectively. A blocker member is rotatable between first and second positions. A biasing member is operatively coupled to the face gear and the blocker member to bias the blocker member in a biasing direction. A sliding member selectively disengages the blocker member to allow the blocker member to rotate in the biasing direction. A lever arm is operatively coupled to the sliding member such that the lever arm is in the disengaged and engageable positions when the sliding member engages the blocker member in the first and second positions, respectively.

A lock includes a housing having a plurality of apertures receiving buttons. A biasing member biases each button towards an un-pressed position. A plurality of spools includes circumferential grooves. Each circumferential groove has a notch that is angularly displaced relative to each of the other notches on that spool. A plurality of legs is in communication with one of the buttons and contacts one of the circumferential grooves. A locking plate includes apertures receiving the spools. An actuator is associated with the locking plate and a latch. Pressing and releasing the buttons causes translation of the spool rotationally orienting a notch to be adjacent to the locking plate. The locking plate only moves into an unlocked position, when driven by the actuator disengaging the latch and unlocking the lock if all of the notches which are adjacent to the locking plate are in a unlocked rotational orientation.

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.

A locking cap having a push button reset and method for operating the locking cap having a push button reset are disclosed. The locking cap with a push button reset system is a deterrent to keep medications in the correct hands.

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 chain lock includes a lock body having a first closure part, a second closure part, and a combination locking mechanism that is aligned along a lock axis. The chain lock having a bolt selectively locked to the lock body by the combination locking mechanism. The lock body has a chain connection part permanently connected to the bolt via a chain. The combination locking mechanism having a plurality of rotatable code setting rings arranged between the first and second closure parts. At a first end the lock body has at least one first fastening pin that engages through the housing sleeve into an annular groove of the chain connection part. At a second end the lock body has at least one second fastening pin that engages through the housing sleeve into the second closure part of the lock body and that fixes the second closure part to the housing sleeve.

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.

A door handle assembly that allows for easy removal and switching of handles. Such an arrangement may provide the flexibility to change handle orientation and interchange handles based on a user's circumstances or preferences such as when a door handle is configured as a lever having a curved shape. Further, the door handle may be configured as a door lock having a keypad access control. The face of the keypad accessible from outside the door may include auxiliary battery terminals to provide the user with easy accessibility for providing temporary power to the door lock with an auxiliary battery should the installed batteries housed within the door lock fail to provide sufficient power.