Energy-Saving Magnetic Lock

Abstract

An energy-saving magnetic lock comprising: a first lock module mounted to a part of a door such as a doorframe; and a second lock module, mounted to the other part of the door such as a door panel which can pivot about the doorframe, for interacting with the first lock module, wherein the first lock module comprises: an electromagnet (1); a slot (12); a trip lever (11) inserted inside the slot; a sensor (13) equipped at the slot end; a member, which is arranged between the trip lever (11) and the slot (12), allowing the trip lever to move toward the slot opening axially a predetermined distance when the pressing force on the head of the lever (11) is less than the predetermined value; a circuit control board (15), wherein the trip lever (11) has a length equal to the distance between the slot opening and a surface of the sensor (13) facing the slot opening, the second lock module comprises: an iron plate (2) installed on or in the part of the door panel by a main screw (21), wherein the main screw (21) comprises: a rod whose end passes through a counterbore (22) of the iron plate (2) and being secured to the part of the door; and a cap (211) abutting against the head of the lever (11) when the electromagnet (1) and the iron plate (2) are sucked together and wherein a first elastic member (23) is arranged between the iron plate (2) and the cap (211) of the main screw (21), and a second elastic member (24) is arranged between the iron plate and the part of the door. The lock can save energy and have added alarm function thereby security is strengthened.

Dependencies are inferred from the claim text.