US 12,333,918 B2
One-time activation smoke alarm
Shih-Hsiung Hsieh, Yilan County (TW); and Yi-Shan Wu, Yilan County (TW)
Assigned to EVERDAY TECHNOLOGY CO., LTD., Yilan County (TW)
Filed by EVERDAY TECHNOLOGY CO., LTD., Yilan County (TW)
Filed on Dec. 12, 2023, as Appl. No. 18/536,244.
Claims priority of application No. 112206839 (TW), filed on Jul. 3, 2023.
Prior Publication US 2025/0014441 A1, Jan. 9, 2025
Int. Cl. G08B 17/10 (2006.01); G08B 17/113 (2006.01); G08B 29/18 (2006.01)
CPC G08B 17/10 (2013.01) [G08B 17/113 (2013.01); G08B 29/181 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A one-time activation smoke alarm, comprising:
a smoke alarm body, including:
a case, wherein an engaging recessed slot is recessed at one side of a bottom of the case, so that a supporting protrusion platform protrudes from a corresponding position on another side of the bottom of the case; and
a sliding sheet slidably disposed on the supporting protrusion platform, wherein the sliding sheet is capable of sliding to shift a slide switch for the smoke alarm body to turn on a detection function, and a front end of the sliding sheet has a pressed protrusion portion that extends into the engaging recessed slot; and
a wall-hanging base, wherein one side of the wall-hanging base is configured to be disposed on a wall surface, an engaging protrusion platform protrudes from another side of the wall-hanging base, and at least one abutting protrusion portion protrudes outward from a periphery of the engaging protrusion platform;
wherein the engaging protrusion platform and the engaging recessed slot are capable of being engaged and fixed to each other, so that the at least one abutting protrusion portion abuts against a pressed oblique surface formed on the pressed protrusion portion in the engaging recessed slot to move the sliding sheet forward from a first position to a second position, and a slider of the slide switch is synchronously moved forward from a turned-off position to a turned-on position such that the smoke alarm body is powered on to turn on the detection function; wherein the sliding sheet is connected to a backward-proofing mechanism that is configured to prevent the sliding sheet from moving backward such that the sliding sheet is unable to move backward from the second position to the first position, and the slider of the slide switch is unable to move backward from the turned-on position to the turned-off position such that the smoke alarm body is unable to turn off the detection function after turning on the detection function.