Abstract: An improved structure of an electronic lock includes an outside-door assembly, a lock middle, an inside-door assembly, and a latch. The outside-door assembly is mounted to an outer side of a door panel. The lock middle is connected to the outside-door assembly. The inside-door assembly is connected to the lock middle and is mounted to an inner side of the door panel. The latch is connected to the latch coupler. With a code entered, an electrically-driven valve of the lock middle causes a guide block and a projection block to extend outward to have an outside handle and the lock middle to synchronously operate for opening the door. Alternatively, a key may be used to open the door. If such a code and a key are both not available, the outside handle and the lock middle do not synchronously operate.

Abstract: An improved structure of an electronic lock includes an outside-door assembly, a lock middle, an inside-door assembly, and a latch. The outside-door assembly is mounted to an outer side of a door panel. The lock middle is connected to the outside-door assembly. The inside-door assembly is connected to the lock middle and is mounted to an inner side of the door panel. The latch is connected to the latch coupler. With a code entered, an electrically-driven valve of the lock middle causes a guide block and a projection block to extend outward to have an outside handle and the lock middle to synchronously operate for opening the door. Alternatively, a key may be used to open the door. If such a code and a key are both not available, the outside handle and the lock middle do not synchronously operate.

Abstract: A pushbutton type easy-code-change handle lock includes an outdoor assembly, a latch bolt arresting member, a latch bolt, and an indoor assembly. The outdoor assembly is mounted to an outside surface of a door panel and is coupled to an end of the latch bolt arresting member. The latch bolt arresting member drives the latch bolt to move. The indoor assembly is coupled to an opposite end of the latch bolt arresting member. The outdoor assembly includes a mechanical combination lock. When a user enters a correct combination of codes, the mechanical combination lock is operated and the external door handle and the latch bolt are operated synchronously to open the door; and if no code is provided, a key may be used to open the door; and if both codes and key are not provided, the external door handle and the latch bolt cannot be operated synchronously.

Abstract: An improved driving structure of an electronic lock includes an outdoor assembly, a lock core, an indoor assembly, and a latch bolt. The outdoor assembly is mounted to an outside surface of a door panel. The indoor assembly is mounted to an inside surface of the door panel. The lock core is arranged between the outdoor assembly and the indoor assembly and coupled thereto. The lock core is operatively coupled to the latch bolt. As such, an improved structure of an electronic lock is constructed. When a user enters a correct combination of codes, the electrical valve of the lock core stretches the projection block outward to engage the second stopper so as to allow the exterior handle and the lock core to be operated synchronously for unlocking. Without the combination of codes, a key may be used to unlock the door.

Abstract: An electric lock includes an outer door assembly, a nexus, an inner door assembly, and a latch bolt. The outer lock assembly is arranged to an outer side of a door. The nexus is connected to the outer door assembly. The inner door assembly is connected to the nexus and arranged to an inner side of the door. The latch bolt is connected to a latch bolt retaining unit of the nexus. An actuator of the nexus will move an engagement rod and a protruded block forward to engage an outer handle to the nexus for opening the door when inputting a correct password to the electric lock. The door can be opened by a proper key also. The nexus will be isolated from the outer handle to prevent damage to the nexus when a user does not have a right key and a correct password to the electric lock.

Abstract: An electric lock includes an outer door housing, nexus, inner door housing, and a latch bolt. The outer lock housing is arranged to an outer side of a door. The nexus is connected to the outer door housing. The inner door housing is connected to the nexus and arranged to an inner side of the door. The latch bolt is connected to a latch bolt retaining unit of the nexus. An actuator of the nexus will extend a guiding block and a protruded block to engage the outer handle to the nexus for opening the door while user inputting a correct password to the electric lock. The door can be opened by a proper key also. The nexus will be isolated from the outer handle to prevent damage to the nexus while a user does not have a right key and password to the electric lock.

Abstract: An fireproof door lock assembly comprises a handle seat frame being a U shape frame; a press unit installed in the U shape frame of the handle seat frame; the press unit having a driven mechanism; the driven mechanism including a driven unit; a plurality of buckling units, an elastic unit, at least one vibration reduction element, at least one driving bodies, a bottom plate and a pin unit; a press element having an L shape and being attached to the driving body by using a plurality of studs passing through a connecting unit, the press element and a driving unit; and fireproof door lock installed in front of the handle seat frame; so that the driven mechanism of the press unit having the effect of opening the fireproof door look.

Abstract: A hidden lock locked to an inner side of a doorplate comprises a top seat assembly; a top rod; the top seat assembly being assembled to the top rod; a linking rod installed to a lower side of the top rod; a lower rod; a lower head; a top seat assembly; a resisting unit. The connecting shaft having a groove, plurality of slots, a plurality of holes, an upper engaging tube and a lower engaging tube. A bent stop is extended from the resisting unit. When a top rod reduces inwards, the stop will resist against a neck of the top rod to prevent a lower head to contact the ground. A pin device is installed for retaining the lock in high temperature.

Abstract: An fireproof door lock comprises a handle seat frame being a U shape frame; a press unit installed in the U shape frame of the handle seat frame; the press unit having a driven mechanism; the driven mechanism including a driven unit; a plurality of buckling units, an elastic unit, at least one vibration reduction element, at least one driving bodies, a bottom plate and a pin unit; a press element having an L shape and being attached to the driving body by using a plurality of studs passing through a connecting unit, the press element and a driving unit; and fireproof door lock installed at a front end of the fireproof door lock; so that the driven mechanism of the press unit having the effect of opening the fireproof door look.

Abstract: A hidden lock locked to an inner side of a doorplate comprises a top seat assembly; a top rod; the top seat assembly being assembled to the top rod; a linking rod installed to a lower side of the top rod; a lower rod; a lower head; a top seat assembly; a resisting unit. The connecting shaft having a groove, plurality of slots, a plurality of holes, an upper engaging tube and a lower engaging tube. A bent stop is extended from the resisting unit. When a top rod reduces inwards, the stop will resist against a neck of the top rod to prevent a lower head to contact the ground. A pin device is installed for retaining the lock in high temperature.

Abstract: A tubular door lock includes a dead bolt and a follower slidably received in a housing and coupled together. The follower included a groove formed between two levers, two actuators are rotatably received in the housing and each includes one or more actuating fingers engageable with the levers of the follower, for selectively actuating the levers of the follower to move the dead bolt relative to the housing, when the actuators are rotated relative to the housing. The provision of the actuators in different positions relative to the housing allows the lock device or the knob to engage with either of actuators, for allowing the lock device and the knob to be secured into the door panel at different positions.

Abstract: An electric door lock includes a handle rotatably attached to a housing, a lock device engaged in the housing, a follower rotatably secure the handle to the housing, an electromagnetic control device having a receptacle rotatably received in the follower, a plunger slidably engaged in the receptacle and extendible out of the receptacle to engage with the follower, and a latching device for selectively latching the plunger to the receptacle. The plunger may be selectively actuated to engage with the follower either by the lock device and correct keys or by the electromagnetic control device with correctly entered passwords or secret codes.

Abstract: A door lock device includes a striker plate for engaging with a latch of a base, and a pawl pivotally secured to the latch and having a tongue biased to lock the latch to the base, to prevent the latch from being rotated relative to the base. A beam is engageable with the pawl for preventing the pawl from moving out of the latch. A bar is biased to engage with the pawl. A catch is pivotally supported on the base has two recesses for selectively receiving the bar in a lower and an upper position. A lever is pivotally secured to the base and has one end for moving the pawl into the latch.