摘要:
A door lock includes a first driven wheel connected drivenly to a motor and having two resilient driving elements, and a second driven wheel connected drivenly to a rotary handle and the first driven wheel. The second driven wheel has a driven element disposed between and driven by the driving elements so that the second driven wheel moves to a first or second position to place a latch bolt in a latching or unlatching position. When the latch bolt is jammed, the second driven wheel is inoperative. However, as the driving elements are resilient, the first driven wheel can continue its rotation without being obstructed.
摘要:
A latch-bolt mechanism includes a housing, a latch-bolt, and a drive member. The latch-bolt is movable between an extended position and a retracted position, and includes a bolt body and an engaging member operable to move relative to the bolt body between an engagement position and a disengagement position and having an engaging portion. The drive member has a driving portion. When the engaging member is at the engagement position, the driving portion can be activated to contact and push the engaging portion so as to move the latch-bolt from the extended position to the retracted position. When the engaging member is at the disengagement position, contact between the driving portion and the engaging portion can be prevented.
摘要:
In a handle-returning device of a cylinder lock assembly, a support base has an inner annular flange and an axial spring-retaining lug. A rotation driver has an inner tubular wall extending into the inner annular flange of the support base, and a spring driving element. A torsion spring is disposed around the inner annular flange and between the support base and the rotation driver, and has a spring leg abutting the spring-retaining lug and the spring driving element. A rotary plate abuts the support base opposite to the rotation driver, and has an engaging part engaging a tongue projecting from the rotation driver. A reinforced structure is thus provided to oppose high torsional stresses produced upon rotation of a lever handle.
摘要:
A kind of cylindrical lock, this lock able to be installed on a door, includes: one transmission structure which can operate a drive base, this drive base gearing a latch mechanism; this latch mechanism having: one tubular shaped element, which can be coupled to a handle for actuation; a tube, which can be rotated and inserted into the tubular shaped element; one pushing part, having one side with at least one pushing section, this pushing section able to push the drive base at the appropriate time; a collar, which can be set on one end of the tubular shaped element, a meshing section formed on one end of the collar; an engaging element, partly installed in this pushing part, one meshing section formed on this engaging element, and this engaging element having at least one pushable section; one rotating part, having at least one pushing portion, each pushing portion at the appropriate time pushing the adjacent pushable section of the engaging element; one lock set, having a lock core linked to one transmission part; rotating this lock core to move from the beginning position at an angled position in a predetermined direction back to the beginning position, the transmission part of this lock set can push a moving part, causing this engaging element to do axial displacement, and causing the meshing section of the engaging element to be positioned and move between the incompatible meshing of the first position or compatible meshing of the second position, on the meshing section of this collar.
摘要:
In a door lock assembly, a push/pull handle is connected to a slide plate through an actuator. When the handle is operated, the actuator drives a rotary cam to rotate a spindle tube, which in turn operates a latch cam connected to a latch. The slide plate is mounted movably within a housing in proximity to the rotary cam to slide transversely of a rotation axis of the spindle tube, and has two drive elements to respectively drive two driven elements of the rotary cam. The actuator is formed as a strip having one end connected to the handle, and another end connected to the slide plate. The strip is pivotal along with the handle to actuate the slide plate.
摘要:
An electric door lock includes a transmission wheel driven by a motor and incorporating a spring with a driving end to drive a driven wheel. The transmission wheel and the driven wheel are rotatably sleeved around an inner drive tube connected to an inner handle. A spindle is inserted into the inner drive tube and has an operating end exposed from the inner handle. The driven wheel is connected integrally to the spindle for rotation. Preferably, a coupling piece extends through an arc-shaped slot in the inner drive tube and interconnects the driven wheel and the spindle.
摘要:
A restoring structure of a lock comprises: a sleeve disk, having a first wall and a second wall, the first wall interconnecting a first face and a second face, and the second wall interconnecting the second face and a third face, the first face and the second face defining a recess, the first face further having a projection, and the second wall defining a central hole; an integrally formed rotative tube, inserted through the central hole of the sleeve disk, and having an end which is formed with a bent portion at a location corresponding to the projection of the sleeve disk and has at least one protrusion disposed at a predetermined position, the protrusion abutting against the first face of the sleeve disk; a torsion spring having two legs, adapted to fit onto an outer wall of the rotative tube such that the legs engage on the bent portion of the rotative tube and the projection of the sleeve disk; and a guard ring disposed adjacent to the third face of the sleeve disk and adapted to engage with at least one lateral slot formed on the rotative tube; whereby when the rotative tube is rotated clockwise or counterclockwise at a desired angle, the torsion spring is compressed to create an elastic deformation such that the at least one protrusion of the rotative tube runs toward the projection of the sleeve disk, and when the rotative tube is released, the rotative tube is returned to its original position by a restoration force of the torsion spring.
摘要:
A lock assembly includes a handle assembly including a tubular member having an axial hole defined in a first end thereof and extending along a longitudinal axis thereof and a receptacle defined in a second end thereof and in communication with the axial hole, and a handle formed on the second end of the tubular member. A lock core assembly is removably mounted to the receptacle of the handle assembly and includes a lock core therein. The lock core includes a key hole defined in a first end thereof. A transmission device is received in the axial hole of the tubular member and includes a first end and a second end. The second end of the transmission device includes an end face plate extending in a direction transverse to a longitudinal axis of the key driving means, and two spaced positioning rods project outwardly from the end face plate and extend away from the first end along a direction parallel to the longitudinal axis of the transmission device. The lock core includes two positioning holes defined in a second end thereof and extending along a direction parallel to a longitudinal axis thereof. The positioning rods are removably extended through the holes in the second end of the lock core. The holes are respectively aligned with the positioning rods when mounting the lock core assembly into the receptacle.
摘要:
A lock set for a door has a cylindrical spindle integrally coupled with a knob and containing a slide plate which can be actuated to lock and unlock the cylindrical spindle against rotation. The cylindrical wall of the spindle is provided with two diametrically opposing grooves which extend axially from one end thereof to a predetermined depth and which are opened at the one end so as to facilitate installation of the slide plate in the spindle. The slide plate has two opposing lugs for insertion into the grooves.