Small hanger chain for preventing personal effects from being lost

The utility model relates to a small hanger chain for preventing personal effects from being lost. An anti-theft alarming device is always arranged on the top-grade vehicles, which can automatically alarm when the vehicle is moved for a distance away from the host, but no small anti-theft product is...

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Bibliographic Details
Main Authors WAN WEILONG, WANG YUQI, ZHU YU, FENG LIFENG, YU KAIYUE, ZHANG XINRUI, ZU DAPENG
Format Patent
LanguageChinese
English
Published 09.03.2011
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The utility model relates to a small hanger chain for preventing personal effects from being lost. An anti-theft alarming device is always arranged on the top-grade vehicles, which can automatically alarm when the vehicle is moved for a distance away from the host, but no small anti-theft product is designed for preventing small and delicate cheap personal effects, such as mobile phone, key, hand bag, and the like, from being lost. The small hanger chain for preventing personal effects from being lost comprises a high frequency signal emitting circuit (1), a high frequency signal receiving and amplifying circuit (2) connected to the high frequency signal emitting circuit, a frequency-selecting circuit (3) connected to the high frequency signal receiving and amplifying circuit, a low frequency signal amplifying and shaping circuit (4) connected to the frequency-selecting circuit, and a delay alarming circuit (5) connected to the low frequency signal amplifying and shaping circuit. The hanger chain of the utili
Bibliography:Application Number: CN20102221599U