Patent ID: 7464570

Claim:
A time programmable unlocking lock comprising: a tenon structure assembly, comprising a front and a rear retaining plate, the front retaining plate connecting to an inner side of a door and having a round hole for a tenon of the rear retaining plate to go through, the rear retaining plate having a slot disposed thereon and cooperating with a flange to slidingly connect to the inner side of the door, a front end of the rear retaining plate connecting with the tenon, a rear end of the rear retaining plate connecting with a metal plate, the front retaining plate connecting with the rear retaining plate through a compression spring; a timer device disposed at the inner side of the door, the timer device controlling a circuit operation, a timer setting and a counter setting of the time programmable unlocking lock; a magnetic valve disposed and connected nearby the timer device, the valve having its top disposed with a cylindrical tenon; and a connecting rod disposed on top of the cylindrical tenon of the magnetic valve and connected to the door through a spring.