SAFETY DOOR, DOOR LOCK AND DOOR LOCK RELEASE MECHANISM

摘要

A safety door, door lock and door lock release mechanism for preventing a child from opening a door while permitting an adult to do so includes a weight sensor and a height sensor for unlocking a locked door. An alarm is used to indicate a child's attempt to open the door and a sensor for sensing a dangerous condition such as smoke or carbon monoxide is also provided for unlocking the door in the event of a dangerous condition and activating a more discernable alarm at that time.