Abstract: A lock core with a related key includes a core body and a housing and a related key. The related key is inserted in a keyhole of the core body and pushed inward to push a stop plate inward in the keyhole at the same time, with projecting ridges of the key moving inward together with engage shafts until projecting members align with an annular groove of the housing. Then the core body can be rotated to be unlocked. When the key is pulled out of the core body, the engage shafts and the stop plate return to their original positions by the springs to lock the core body. Thus the stop plate normally closes up the keyhole, preventing dirt and miscellaneous matters from entering the keyhole. Any matters or even broken key parts may be sprung out of the keyhole by the stop plate, with the keyhole never clogged.

Abstract: A remote-controlled door lock includes a housing provided inside with a lock base, a deadbolt, a battery base, a circuit board and an actuating device. The deadbolt is fixed with a stopper on the center portion. The locking button of a remote controller is pressed to send out a locking signal to the circuit board to start the motor of the actuating device to rotate. Synchronously, the rotating shaft of the motor actuates a rotary member to rotate together with its notch, which rotates to reach the stopper of the deadbolt and holds the stopper immovable therein, rendering the deadbolt unable to be moved inward. Thus even if the lock rods of the lock base are pried unlocked, the door lock is still impossible to be unlocked before the actuating device is driven by a remote controller to release the deadbolt, having best effect of anti-theft.

Abstract: A remote-controlled door lock includes a housing installed inside with a battery base, a circuit board and an electromagnetic valve. The electromagnetic valve is fitted with a lateral valve rod controlled by the circuit board to extend out of the through hole in a sidewall of the housing and engage in the insert hole in a sidewall of the bolt base of a doorjamb. A remote controller is operated to control the valve rod of electromagnetic valve to move outward and extend out of the through hole of the housing and engage in the insert hole of the bolt base to lock the door at a limited position. Thus, the door lock is impossible to be unlocked only by a key before the valve rod of the electromagnetic valve is released by the remote controller to disengage from the insert hole of the bolt base, having best effect of anti-theft.

Abstract: An automobile lock has a body, an ejecting rod and a retaining rod. When in using, use a key to rotate a lock core to withdraw the ejecting rod inwardly to make the retaining rod disengaged from a locating pin and urged outwardly by a spring to form a gap for allowing a steering wheel rim to be received therein and embraced by a holding member of the body and a retaining member of the retaining rod, and then pull the ejecting rod outwardly to be fixed at a rear end of the body, thus providing a secure lock on the steering wheel. When not in use, rotate the lock core to pull the retaining rod outwardly for removing the automobile lock from the steering wheel, and then withdraw the retaining rod into a housing, thereby reducing the automobile lock to a minimum dimension convenient for storage.

Abstract: A remote-controlled door lock has a case body provided with a battery base, a circuit board and a braking device therein. A latch-bolt assembly has a through hole and a slide slot extending from the through hole and having a width smaller than a retaining member. When the circuit board receives a locking sign from a remote controller, it actuates a motor of the braking device to turn a driving gear to rotate a gear rack of a slide block to move a retaining member upwards to be engaged with the through hole without moving into the slide slot to restrict the latch-bolt assembly in a locked position, whereby even though dead bolts of a lock base are unlocked, the door lock cannot be completely unlocked without using the remote controller to actuate the braking device to relieve the latch-bolt assembly from being locked, thus achieving a best effect of anti-theft.

Abstract: A remote-controlled door lock in the present invention has a case body provided with a battery base, a circuit board and a bolt-locking device therein. A bolt rod of the bolt-locking device can be actuated by the battery base and the circuit board under the control of a remote controller to extend out of a through hole of the case body to be inserted into and engaged with an engagement hole of a strike base installed in a door frame, thereby locking a door plate in a limited position. When the door plate is locked with the bolt rod still engaged with the engagement hole of the strike base, the door plate is unable to be completely unlocked only by a key without using the remote controller to actuate the bolt rod to be disengaged from the engagement hole of the strike base, thereby achieving a best effect of anti-theft.

Abstract: A remote-controlled door lock includes a lock shell provided inside with a battery base, a circuit board, a deadbolt and two electromagnetic valves. The deadbolt has a through hole connected sidewise to a slide slot with a smaller breadth than the diameter of the through hole. The two electromagnetic valves are respectively positioned on and under the door bolt. The two electromagnetic valves are controlled to operate by a remote controller and actuate the deadbolt to move to a limited position. The deadbolt cannot be unlocked with a key only before it is released by a remote controller, thus obtaining the best effect of anti-theft.

Abstract: A remote-controlled lock includes a shell, an engage base, a fix base, a motor, a circuit board, an actuating member, a passive member and a spring. The circuit board receives a locking signal from a remote controller and starts the motor to rotate clockwise together with the actuating member, which pushes the passive member to move outward and has its projections engaged with the projections of the passive member, which compresses the spring to force its deadbolt extend outward and inserted in the insert groove of the engage base to finish locking of the lock. The circuit board receives an unlocking signal and starts the motor to rotate reversely together with the actuating member, letting the passive member moved inward by the recovering resilience of the spring and the deadbolt disengaged from the insert groove of the engage base to finish unlocking of the lock.