CN2921978Y

CN2921978Y - Antitheft alarming electric bell

Info

Publication number: CN2921978Y
Application number: CN 200620089455
Authority: CN
Inventors: 赵子焕
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-01
Filing date: 2006-03-01
Publication date: 2007-07-11
Anticipated expiration: 2016-03-01

Abstract

An antitheft alarming electric bell comprises a housing and an alarming circuit comprising a switch, an electric bell, a diode, a 5S module, a constantly closed dry reed pipe, a resistor, a capacitor and a bar magnet. The utility model is characterized in that: the bar magnet is arranged on the movable window, the constantly closed dry reed pipe is arranged on the window frame near the bar magnet, the housing is arranged in the bedroom, wherein the bar magnet arranged on the movable window and the constantly closed dry reed pipe arranged on the window frame near the bar magnet are all connected by the lead and installed in series in the alarming circuit. Compared with the prior art, the utility model has a simple structure, low price, and strong function of antitheft and driving thieves, and can remind sleeping masters to get up and catch thieves in time.

Description

The burglar alarm electric bell

Technical field

The utility model relates to a kind of warning device, particularly relates to a kind of being exclusively used in and prevents that the thief from the burglar alarm electric bell that window enters, belongs to safety apparatus.

Background technology

At present, existing burglar alarm kind is a lot, the existing thief of preventing enters from door, also have to prevent that the thief from entering from window, substantially all be medium-to-high grade product, its complex structure, bring a high price, be unsuitable in town and country common other popularize and promote.And great majority other still only prevent that by closing traditional window the thief enters, also have and outside window, install one protection network additional, but above-mentioned measure can not prevent entering of thief.For guaranteeing a stable life order, people press for the burglar alarm that a kind of popular style can be arranged and come out.

The utility model content

The purpose of this utility model is to overcome the prior art above shortcomings, provides a kind of burglar alarm electric bell.This novel burglar alarm electric bell is simple in structure, cheap, has stronger antitheftly to drive crafty function, and can in time remind the owner who sleep soundly to get up to catch a thief.

This burglar alarm electric bell that the utility model provides, include a housing and by switch, electric bell, diode, the 5S module, normally closed tongue tube, resistance, the warning circuit that electric capacity and bar magnet are formed, be characterized in that described bar magnet is arranged on the movable window, described normally closed tongue tube is arranged near on the window frame of bar magnet, described housing is arranged in the bedroom, wherein be arranged on the bar magnet on the movable window, be arranged near the normally closed tongue tube on the window frame of bar magnet and connect parallel-series in warning circuit by lead, an end of normally closed tongue tube is connected with the pin 4 of 5S module in the described warning circuit, and be connected by the pin one of resistance R 1 with resistance R 2 and 5S module, the other end of normally closed tongue tube is connected with the pin 5 of capacitor C and 5S module, the pin 6 of 5S module is connected with the circuit of electric bell by the rectification circuit that is made of diode, and the pin 7 of 5S module is connected with external 220V AC power.

Warning circuit in the technique scheme is common warning circuit, owing to be provided with the rectification circuit that constitutes by four diodes in the circuit, therefore power supply is a municipal 220V alternating current, and the design of the other parts of warning circuit also should be well known to those skilled in the art.

Compared with prior art, the beneficial effects of the utility model are: simple in structure, cheap, and have and stronger antitheftly drive crafty function, and can in time remind the owner who sleep soundly to get up to catch a thief.

Description of drawings

Accompanying drawing is the warning circuit schematic diagram of the embodiment that provides of the utility model.

Embodiment

As shown in drawings, this burglar alarm electric bell, include one and by switch, electric bell, diode, the 5S module, normally closed tongue tube, resistance, the warning circuit that electric capacity and bar magnet are formed, described bar magnet is arranged on the movable window, described normally closed tongue tube is arranged near on the window frame of bar magnet, the housing of described burglar alarm electric bell is arranged in the bedroom, wherein be arranged on the bar magnet on the movable window, be arranged near the normally closed tongue tube on the window frame of bar magnet and connect parallel-series in warning circuit by lead, an end of normally closed tongue tube is connected with the pin 4 of 5S module in the described warning circuit, and be connected by the pin one of resistance R 1 with resistance R 2 and 5S module, the other end of normally closed tongue tube is connected with the pin 5 of capacitor C and 5S module, the pin 6 of 5S module is connected with the circuit of electric bell DL by the rectification circuit that is made of diode, and the pin 7 of 5S module is connected with external 220V AC power.

During the utility model work, window is closed condition, plug inserts municipal 220V alternating current, the contactor closure, the bar magnet ZT that is arranged on the movable window is closer to each other with the normally closed tongue tube that is arranged near on the window frame of bar magnet, this moment, the interior contact of normally closed tongue tube AG disconnected, and warning circuit is an off state, and the electric bell DL that is connected in the circuit does not work.In case the thief leaps in through the window, as long as draw back window, the bar magnet ZT that is arranged on the movable window will be away from being arranged near the normally closed tongue tube on the window frame of bar magnet, the interior contact of normally closed tongue tube AG resets, and make whole warning circuit form path, the electric bell DL that is connected in the circuit starts working, and sends alerting signal, because of resistance R ₂With the effect of capacitor C, the alerting signal that electric bell DL sends will continue for some time.

Claims

1. burglar alarm electric bell, include a housing and by switch, electric bell, diode, the 5S module, normally closed in reed pipe, resistance, the warning circuit that electric capacity and bar magnet are formed, it is characterized in that described bar magnet is arranged on the movable window, described normally closed tongue tube is arranged near on the window frame of bar magnet, described housing is arranged in the bedroom, wherein be arranged on the bar magnet on the movable window, be arranged near the normally closed tongue tube on the window frame of bar magnet and connect parallel-series in warning circuit by lead, an end of normally closed tongue tube is connected with the pin (4) of 5S module in the described warning circuit, and be connected with the pin (1) of resistance R 2 and 5S module by resistance R 1, the other end of normally closed tongue tube is connected with the pin (5) of capacitor C and 5S module, the pin of 5S module (6) is connected with the circuit of electric bell by the rectification circuit that is made of diode, and the pin of 5S module (7) is connected with external 220V AC power.