CN2148983Y - Alarming anti-theft device for bag and pocket scratched - Google Patents

Abstract

The utility model provides an alarming anti-theft device for bag and pocket scratched. The essential technical proposal is that a guard net is arranged on soft bags and pockets, and two ends of the guard net are connected with an alarm circuit, wherein, a conductor wire is wound, and the guard net is formed; an amplifier circuit of pulse oscillation which is composed of a resistor, a capacitor, and two transistors is positioned in the alarm circuit; the output end of the alarm circuit is connected with loudspeaking elements. The utility model which can alarm automatically when bags and pockets are scratched has the advantages of high theftproof performance, high safety, simple structure, low cost, and easy portability. The psychic fatigue of people in the public areas can be relieved.

Description

Alarming anti-theft device for bag and pocket scratched

The utility model belongs to a kind of pocket, bag burglar alarm, and is particularly a kind of by a stroke alarm against theft.

In the public place that the people crowds more, people carry valuables or money, ticket etc. with handbag, bag, case, all seem very careful, spirit will stand alert constantly, even when so also unavoidably careless omission being arranged, take to scratch the way of pocket, bag as the thief, steal money and goods unconsciously, cause irremediable economic loss to people.

The purpose of this utility model provides a kind of handbag, bag is drawn alarm against theft, and theftproof performance is good, and is safe and convenient to use, in public places, removes people's mental fatigue, and simple in structure, and cost is low.

The purpose of this utility model is achieved in that it comprises warning circuit, its technology side; The case main points are: the protection network of lead coiling is set, the protection network two ends circuit taking alarm that goes between on the software bag; Resistance, electric capacity and two impulse hunting amplifying circuits that triode constitutes are arranged, its output termination loudspeaker element in the warning circuit.

During use, valuables are loaded in the bag, bag is loaded in handbag, bag, the case again, the normal condition warning device does not send the sound, when handbag, bag, case are scratched by the people, certainly will can be scratched by soft bag yet, this moment, the protection network of lead coiled was destroyed, cause and open circuit, warning is sent in the warning circuit conducting.

The utility model has the advantages that: handbag, bag, case are scratched, and can report to the police automatically, and theftproof performance is good, and is safe and reliable, remove people's mental fatigue in public places, and simple in structure, and cost is low, is easy to carry about with one.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model software bag synoptic diagram.

Fig. 2 is an electrical schematic diagram of the present utility model.

See Fig. 1,2, concrete structure of the present utility model is as follows: in the interlayer of software bag 4 bags of being made by flexible material protection network 3 wiry is set, protection network is drawn conductive plug 1, and software bag 4 has opening, the outside nylon adherent buckle 5 that connects of bag.The warning circuit plate is housed in the box body 2, the impulse hunting amplifying circuit is arranged in the warning circuit, it is connected into by resistance R, capacitor C, two triode BG1, BG2, and the impulse hunting amplification circuit output end connects loudspeaker Y.Some a, b(in the circuit is two jacks on the box body 2) connect conductive plug 1, the electric current protection network 2 in the bag of flowing through.During use, software bag 4 is contained in pocket, bag or the case, and is fixed in pocket, bag or the case that is connected with sticking mouthful of nylon by nylon adherent buckle 5.Valuables are loaded in the software bag 4, and when software bag 4 was scratched, protection network 3 went to pot and opens circuit, and the base voltage of triode BG1 raises, the work of impulse hunting amplifying circuit, and loudspeaker Y is promptly sent warning.

Claims (1)

1, a kind of pocket, bag are drawn alarm against theft, comprise warning circuit, it is characterized in that:

A, the protection network of lead coiling is set on the software bag, the protection network two ends circuit taking alarm that goes between;

The impulse hunting amplifying circuit of forming by resistance, electric capacity, triode in b, the warning circuit, its output termination loudspeaker element.