CN205451347U

CN205451347U - Gate security protection warning circuit

Info

Publication number: CN205451347U
Application number: CN201620283475.0U
Authority: CN
Inventors: 陈启明
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-07
Filing date: 2016-04-07
Publication date: 2016-08-10
Anticipated expiration: 2026-04-07

Abstract

The utility model discloses a gate security protection warning circuit, including rectifier bridge T, reed switch K, electrode slice M summation potential ware RP1, do rectifier bridge T's port 1 connecting resistance R1 and electric capacity C1, resistance R1's the other end connect electric capacity C1 and 220V alternating current, the other ends of rectifier bridge T's 3 connection 220V alternating currents of port, rectifier bridge T's port 2 linked switch S1, relay K and relay K's contact K 1, relay K's contact K 1 connect E's positive pole of the other end. The utility model discloses gate security protection warning circuit simple structure, components and parts are few, have the touch lock and report to the police and the double alarming function that reports to the police that opens the door to the circuit adopts dual power supply, ensures alarm uninterrupted duty, increases the theftproof effect, consequently has convenient to use, function advantage various and with low costs.

Description

A kind of gate security alarm circuit

Technical field

This utility model relates to a kind of warning circuit, specifically a kind of gate security alarm circuit.

Background technology

Along with improving constantly of living standard, the security protection of family is worked and day by day payes attention to by people, and the when that especially night, owner sleeping soundly, thief slips into and steals valuables in family, and therefore, installing burglar alarm at home is very effective antitheft mode.But the alarm for average family is the most few on market, the devices such as several alarm many uses infrared ray of minority, gate controlled switch are as trigger source, there is also the defects such as reflection is insensitive, rate of false alarm is high, and for veteran burglar, it is easy to this kind of alarm is cracked, thus takes to crack measure, continue crime, the most this kind of alarm many uses mains-supplied, once supply line is cut off, and alarm will lose efficacy.

Utility model content

The purpose of this utility model is to provide a kind of gate security alarm circuit, with the problem solving to propose in above-mentioned background technology.

For achieving the above object, the following technical scheme of this utility model offer:

nullA kind of gate security alarm circuit，Including rectifier bridge T、Reed switch K、Electrode slice M and potentiometer RP1，The port 1 of described rectifier bridge T connects resistance R1 and electric capacity C1，The other end of resistance R1 connects electric capacity C1 and 220V alternating current，The port 3 of rectifier bridge T connects the other end of 220V alternating current，The port 2 connecting valve S1 of rectifier bridge T、The contact K-1 of relay K and relay K，The other end of the contact K-1 of relay K connects the positive pole of power supply E，The other end of switch S1 connects electric capacity C2、Electric capacity C4、The colelctor electrode of audion V1 and one of potentiometer RP1 fixing end，The other end of electric capacity C2 connects electric capacity C3、Resistance R2、Relay K、The negative pole of power supply E、The negative electrode of unidirectional thyristor Q1、The port 4 of reed switch P and rectifier bridge T，The base stage of audion V1 connects resistance R3，The other end of resistance R3 connects electrode slice M，The emitter stage of audion V1 connects anode and the other end of electric capacity C3 of diode D1，The negative electrode of diode D1 connects the other end and the control pole of unidirectional thyristor Q1 of resistance R2，The anode of unidirectional thyristor Q1 connects the other end of electric capacity C4、Resistance R4、The emitter stage of audion V2、Buzzer B and the other end of reed switch K，The base stage of the other end connecting triode V2 of resistance R4，Another fixing end of potentiometer RP1 connects the sliding end of potentiometer RP1、The colelctor electrode of audion V2 and the other end of buzzer B.

As preferred version of the present utility model: described relay J is normally-closed contact relay.

Compared with prior art, the beneficial effects of the utility model are: security alarm circuit structure is simple, components and parts are few for this utility model gate, there is touch door lock report to the police and the double warning function of open alarm, and circuit uses dual power supply, guarantee alarm non-stop run, increase anti-theft effect, the advantage therefore with easy to use, diverse in function and low cost.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of gate security alarm circuit.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.

nullRefer to Fig. 1，A kind of gate security alarm circuit，Including rectifier bridge T、Reed switch K、Electrode slice M and potentiometer RP1，The port 1 of described rectifier bridge T connects resistance R1 and electric capacity C1，The other end of resistance R1 connects electric capacity C1 and 220V alternating current，The port 3 of rectifier bridge T connects the other end of 220V alternating current，The port 2 connecting valve S1 of rectifier bridge T、The contact K-1 of relay K and relay K，The other end of the contact K-1 of relay K connects the positive pole of power supply E，The other end of switch S1 connects electric capacity C2、Electric capacity C4、The colelctor electrode of audion V1 and one of potentiometer RP1 fixing end，The other end of electric capacity C2 connects electric capacity C3、Resistance R2、Relay K、The negative pole of power supply E、The negative electrode of unidirectional thyristor Q1、The port 4 of reed switch P and rectifier bridge T，The base stage of audion V1 connects resistance R3，The other end of resistance R3 connects electrode slice M，The emitter stage of audion V1 connects anode and the other end of electric capacity C3 of diode D1，The negative electrode of diode D1 connects the other end and the control pole of unidirectional thyristor Q1 of resistance R2，The anode of unidirectional thyristor Q1 connects the other end of electric capacity C4、Resistance R4、The emitter stage of audion V2、Buzzer B and the other end of reed switch K，The base stage of the other end connecting triode V2 of resistance R4，Another fixing end of potentiometer RP1 connects the sliding end of potentiometer RP1、The colelctor electrode of audion V2 and the other end of buzzer B.

Relay J is normally-closed contact relay.

Operation principle of the present utility model is: 220V line voltage passes through resistance R1, electric capacity C1 blood pressure lowering, power to circuit after rectifier bridge T rectification, when line voltage is normal, relay K must conduct, its normally-closed contact K-1 disconnects, powered to circuit by line voltage, when civil power is because power-off occur or being cut off by burglar, relay K dead electricity, the K-1 adhesive of its contact, electric energy is passed through to circuit by accumulator E, during use, Guan Bi switch S1, M is Touching electrode, it is connected with door handle, when staff touching door handle, human body leakage current injects the emitter junction of V1 through resistance R3, V1 is made to turn on, DC voltage on C2 is through V1, D1 provides forward gate current to the control pole of unidirectional thyristor Q1, make Q1 the most open-minded, electric capacity C4 two ends can obtain DC voltage.The negative resistance oscillator starting of oscillation at once of V2, R4, RP1 and B composition, buzzer B is issued by loud chimes of doom.Regulation rheostat RP1 can change the tone of alarm sound.

After staff leaves electrode slice M, audion V1 recovers rapidly off-state, but the electric energy that now C3 stores can continue as Q1 offer forward gate current by D1, therefore Q1 will not immediately turn off, and circuit is still reported to the police.After the electric charge of C3 discharges, Q1 loses forward trigger current, turns off when alternating current zero passage.The electric charge that C4 stores remains to maintain negative resistance oscillator to work a period of time, until C4 electric charge discharges, and circuit just stop alarm.If touching electrode slice M again, then circuit can be reported to the police again at once, and from being analyzed above, circuit exists two-stage to postpone, so being required for large value capacitor just can obtain longer time delay.Save circuit cost, meanwhile, if burglar penetrates this function of touch mode alarm, or have gloves on crime, then will trigger reed switch P it is opened the door and come in when, its internal conducting, again such that alarm ON operation, thus play the function of dual-alarm.

Claims

null1. a gate security alarm circuit，Including rectifier bridge T、Reed switch K、Electrode slice M and potentiometer RP1，It is characterized in that，The port 1 of described rectifier bridge T connects resistance R1 and electric capacity C1，The other end of resistance R1 connects electric capacity C1 and 220V alternating current，The port 3 of rectifier bridge T connects the other end of 220V alternating current，The port 2 connecting valve S1 of rectifier bridge T、The contact K-1 of relay K and relay K，The other end of the contact K-1 of relay K connects the positive pole of power supply E，The other end of switch S1 connects electric capacity C2、Electric capacity C4、The colelctor electrode of audion V1 and one of potentiometer RP1 fixing end，The other end of electric capacity C2 connects electric capacity C3、Resistance R2、Relay K、The negative pole of power supply E、The negative electrode of unidirectional thyristor Q1、The port 4 of reed switch P and rectifier bridge T，The base stage of audion V1 connects resistance R3，The other end of resistance R3 connects electrode slice M，The emitter stage of audion V1 connects anode and the other end of electric capacity C3 of diode D1，The negative electrode of diode D1 connects the other end and the control pole of unidirectional thyristor Q1 of resistance R2，The anode of unidirectional thyristor Q1 connects the other end of electric capacity C4、Resistance R4、The emitter stage of audion V2、Buzzer B and the other end of reed switch K，The base stage of the other end connecting triode V2 of resistance R4，Another fixing end of potentiometer RP1 connects the sliding end of potentiometer RP1、The colelctor electrode of audion V2 and the other end of buzzer B.
A kind of gate security alarm circuit the most according to claim 1, it is characterised in that described relay J is normally-closed contact relay.