CN2264388Y - Anti-theft alarm installed on the door and window glass - Google Patents

Abstract

The utility model provides an install theftproof alarm on door and window glass, its mainly is with thin wire or conductive paint coating on door and window glass surface periphery, and circular little iron sheet is then connected to its two endpoints, connects into a closed circuit with the host computer circuit by means of removable external circuit to lead to with the electric current, after this glass breaks, will make the wire become the state of opening circuit, makes the host computer circuit work, and then makes the alarm send out the police dispatch newspaper sound, in order to avoid can be broken the glass in advance by the gangster after, destroys the theftproof equipment again, makes the theftproof function lose, by the utility model discloses an arrangement makes theftproof alarm function more perfect.

Description

Anti-theft alarm installed on the door and window glass

The utility model relates to an alarm, in particular to an anti-theft alarm installed on door and window glass.

In recent years, social security has been poor and thieves are rampant, and the iron window industry is still flourishing. However, after the installation of iron windows, in case of fire, it will hinder the escape route. Recently, anti-theft devices that have been widely installed on doors and windows, Therefore, it is more common to install a magnetic reed switch, and its installation is relatively simple. Just install a set of two magnetic reed switches on the fixed window frame and the movable window respectively. When the window is closed tightly, the two magnetic reed switches If the reed switch is close to each other, the magnetic line of force between the two switches will be conducted, and the anti-theft alarm will not act. The cost of traditional devices is relatively low, but they are relatively easy to be damaged by human beings. These devices will be broken by smart criminals first to break the glass, and then destroy the anti-theft equipment, so that the original anti-theft function will be lost. If the alarm is triggered again, it is possible to enter the house and turn over boxes and cabinets arbitrarily, causing the homeowner to suffer incalculable losses. Of course, such troubles also exist for the window glass.

The designer of this utility model is an anti-theft device researcher, in view of this, then constantly researches and develops, after long-term experiment, finally develops the utility model of cost.

The primary purpose of this utility model is to provide a kind of anti-theft alarm device installed on the glass, when the gangster breaks the glass, the alarm device will alarm immediately to scare off the gangster and achieve the anti-theft function.

Another object of the present invention is to provide an anti-theft alarm installed on the glass. When cleaning or dismantling the doors and windows, only need to remove the magnet joint directly, which is simple and convenient.

The technical scheme of the utility model is: an anti-theft alarm installed on the glass of the door and window, which is glued and coated with a continuous thin wire on the edge of the glass of the door and window, and the two ends of the wire are connected by small iron pieces. , these small iron pieces can be glued to the glass, and the host circuit has an amplifier circuit, a control circuit, and an alarm, which extend two external wires, and the tail ends of these external wires are provided with magnet connectors. , which consists of a round pie-shaped magnet that is glued at both ends and a small round iron piece that is connected to the external wire. With the help of the magnet attraction, it can be adsorbed on the small iron piece that has been bonded to the glass, and the current can be conducted and connected to the glass. form a closed circuit. When the glass is broken, the thin wires coated on it will be in an open circuit state with the glass breaking, and the voltage of the amplifier circuit on the host circuit will rise, prompting the control circuit to be energized, and the siren will make a huge alarm sound.

In order to enable a clear understanding of the structure of the utility model and its achieved effects, the utility model will be further described in detail in conjunction with the drawings and preferred embodiments.

Graphic description:

Fig. 1 is the assembly diagram and circuit diagram of the utility model.

Fig. 2 is a schematic diagram of installation of an embodiment of the present utility model.

The utility model relates to an anti-theft alarm installed on the glass of doors and windows, please refer to Figure 1, on the edge of the glass 11 of each door and window 1, a continuous thin wire 2 is glued and coated, and the thin wires are conductive paint Or metal wires can be used, and the two ends of this wire 2 are respectively connected with circular small iron pieces 21, 22 with a diameter of about one centimeter. These small iron pieces 21, 22 can be glued to the glass, and the A layer of transparent glue can be applied again to prevent the conductive paint or metal wire from being oxidized or scratched by foreign matter, and the metal wire can be fixed on the periphery of the glass surface by means of glue.

There is an amplifying circuit 31, a control circuit 32, and an alarm 33 in the host computer circuit 3, and it extends two external wires 34, 35 from two points A and B, and the tail ends of these external wires are all provided with magnet joints 4, which Respectively glue one all connected to the circular small iron sheet 42,43 of external wire by a round cake shape magnet 41 two ends, by magnet attraction, can be adsorbed on the small iron sheet 21 that has been bonded on glass 11, and borrow The phase contact of two small iron sheets 43,21 that are conductors together can conduct electric current and form a closed circuit. Simultaneously, thin wire and small iron sheet can also be installed equally between a plurality of fan doors and windows, and connect with wire 5 phases in series in addition, have the wire connection mode of magnet joint 4 at two ends with this, can borrow the wire on all door and window glass surfaces Connect completely in series by external wire 34,35, each magnet connector 4, wire 5, small iron plate 21,22 etc., to form a closed circuit.

Referring to Fig. 2 again, when the glass 11 was broken, the fine wire 2 coated on it was in an open circuit state with the glass breaking, and the voltage of the amplifying circuit 31 on the host circuit was raised to impel the control circuit 32 to be energized. Make the siren 33 send a huge alarm sound to scare away criminals and achieve the purpose of anti-theft; of course, the utility model can also be applied to the window glass to increase the anti-theft function of the car.

Each contact of the utility model can form a closed-circuit circuit by the conduction of two small iron sheets 21, 43, and is adsorbed on the small iron sheets 21, 22 that are glued on the glass 11 in advance by the magnetic force of the magnet joint 4, when it needs to be cleaned or When removing doors and windows, as long as the magnet joints 4 are directly taken off, it is very easy and effortless.

To sum up, the utility model has a simple assembly structure, improves the shortcomings of traditional anti-theft alarms, and is economical and practical.

Claims (3)

1, a kind of burglar alarm that is installed on the door glass, it is characterized in that: it is the glass edge at door and window, stick and coat a continuous thin wire, and these lead two ends respectively connect with small iron plate, these small iron plates can stick the jail on glass by glue, again, has an amplifying circuit in the host circuit, control circuit, and warning horn, it extends two external wires, and the tail end of these external wires is equipped with the magnet joint, and it is by each cemented one circular small iron plate that all is connected external wire of patty magnet two ends, by magnet suction, can be adsorbed on and bind on the small iron plate of glass, can be with current lead-through, and form a closed-circuit.

2, a kind of burglar alarm that is installed on the door glass as claimed in claim 1, it is characterized in that: also can install thin wire and small iron plate equally between the multiple leaf door window, contact mutually with lead therebetween and in addition, the side connecting conductor formula that has the magnet joint with these two ends, the lead on all door glass surfaces can be together in series fully by connections such as external wire, each magnet joint, lead, small iron plates, to form closed-circuit.

3, a kind of burglar alarm that is installed on the door glass as claimed in claim 1 or 2 is characterized in that described thin wire can be conductive paint or metal wire.

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