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1. (WO2017035722) DOOR OR WINDOW ALARM

Pub. No.:    WO/2017/035722    International Application No.:    PCT/CN2015/088537
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Sep 01 01:59:59 CEST 2015
IPC: G08B 13/08
Applicants: SHANG, Ping
尚平
Inventors: SHANG, Ping
尚平
Title: DOOR OR WINDOW ALARM
Abstract:
Provided is a door or window alarm, comprising: a trigger unit (3), a function unit (1), and a connection unit (2). The trigger unit (3) is electrically connected to the function unit (1) via the connection unit (2). The trigger unit (3) is provided with trigger spring sheets and a trigger member (32). The trigger spring sheets comprise a first spring sheet (311) and a second spring sheet (312) arranged at corresponding positions of the trigger member (32). An end of the first spring sheet (311) is elastically connected with an end of the second spring sheet (312), while the other end of the first spring sheet (311) and the other end of the second spring sheet (312) are separated and electrically connected to the trigger member (32) in a natural state. When a door or window is closed, the first spring sheet (311) and the second spring sheet (312) are pressed by the door or window, so as to be detached from the trigger member (32). By simply arranging the trigger spring sheets in a gap of the door or window and using characteristics of the trigger spring sheets, the other end of the first spring sheet (311) and the other end of the second spring sheet (312) are separated and electrically connected to the trigger member (32) if the door or window is open, so that the door or window alarm operates to raise an alarm. The present invention can be utilized in any gap of a door or window available for placing the trigger spring sheets, thereby having a wide application range and facilitating usage thereof.