US 11,905,737 B2
Electric locks
Zhong Liang, Shenzhen (CN); and Xuefeng Gu, Shenzhen (CN)
Assigned to CONSUMER 2.0 INC., Los Angeles, CA (US)
Filed by Consumer 2.0 Inc., Los Angeles, CA (US)
Filed on Sep. 27, 2021, as Appl. No. 17/449,086.
Claims priority of application No. 202110923864.0 (CN), filed on Aug. 12, 2021; and application No. 202121881831.6 (CN), filed on Aug. 12, 2021.
Prior Publication US 2023/0051877 A1, Feb. 16, 2023
Int. Cl. E05B 47/00 (2006.01)
CPC E05B 47/0012 (2013.01) [E05B 2047/002 (2013.01); E05B 2047/003 (2013.01); E05B 2047/0017 (2013.01); E05B 2047/0036 (2013.01); E05B 2047/0067 (2013.01)] 31 Claims
OG exemplary drawing
 
1. An electric lock, comprising:
(a) a knob;
(b) a lock body;
(c) a rotatable shaft comprising a rotatable-shaft front end and an opposing rotatable-shaft rear end, wherein the rotatable-shaft rear end is fixedly connected to the lock body to control a locking and unlocking of the lock body;
(d) a gear assembly comprising a gear and an inner core with a common axis center; and
(e) a motor assembly for driving the gear to rotate;
wherein
the gear comprises an internal wall that defines a gear internal space for accommodating the inner core, wherein the internal wall comprises at least one protrusion extending towards the axis center;
the inner core is at least partially mounted in the gear internal space, wherein the inner core comprises an inner core opening arranged on the axis center and at least one rounded head spring mechanism provided in the inner core, and the at least one rounded head spring mechanism comprises a rounded head extending away from the axis center and adjacent to the internal wall;
the electric lock further comprises a connector comprising a connector front end, an opposing connector rear end, and a connector outer periphery sized and shaped to match the inner core opening, wherein the connector front end is connected to the knob, and the connector rear end passes through the inner core opening and is connected to the rotatable-shaft front end;
wherein when the motor assembly drives the gear to rotate, the at least one protrusion interacts with the at least one rounded head spring mechanism to drive the inner core and the rotatable shaft to rotate together, thereby electrically controlling the locking and unlocking of the lock body; and
the at least one rounded head spring mechanism is compressible, such that when a sufficient manual rotational force is applied to the knob, the rounded head passes over the at least one protrusion, so that the inner core is free to rotate relative to the gear, thereby allowing a user to manually control the locking and unlocking of the lock body.