CN205302527U

CN205302527U - Safe deposit box dual supply safety alarm

Info

Publication number: CN205302527U
Application number: CN201620030434.0U
Authority: CN
Inventors: 苏省霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-13
Filing date: 2016-01-13
Publication date: 2016-06-08
Anticipated expiration: 2026-01-13

Abstract

The utility model discloses a safe deposit box dual supply safety alarm, including electric capacity C1, resistance R1, rectifier bridge T and chip IC1, electric capacity C1 and 220V alternating current are connected to resistance R1's one end, electric capacity C1's other end connecting resistance R1's the other end and rectifier bridge T's port 1, the other ends of rectifier bridge T's 3 connection 220V alternating currents of port, rectifier bridge T's port 2 connecting resistance R2, switch S1 and relay J's contact J -1, resistance R2's other end connection relay J. The utility model discloses safe deposit box dual supply safety alarm uses light -sensitive element as the detector, will be sent loud chimes of doom in case the safe deposit box opens, and the alarm uses dual power supply simultaneously, prevents that the burglar from breaking off the commercial power and leading to the alarm to become invalid, consequently has and triggers advantage accurate, disguised good and dual power supply.

Description

A kind of safety cabinet dual power supply safety alarm

Technical field

This utility model relates to a kind of alarm, specifically a kind of safety cabinet dual power supply safety alarm.

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, especially time night, owner slept soundly, thief slips into and steals valuables in family, therefore, a lot of families are equipped with safety cabinet for preserving valuables, safety cabinet is that people preserve vital document, the device of the valuables such as wealth, existing safety cabinet kind is a lot, such as mechanical type, electronic type, but its great majority are all based on password aspect and user's property provide protection service, unpromising client provides other protective measure, once safety cabinet password is revealed or is broken, the property safety of user is just faced with direct threat, therefore need to be improved.

Utility model content

The purpose of this utility model is in that to provide the safety cabinet dual power supply safety alarm of a kind of simple in construction, stable performance, with the problem solving to propose in above-mentioned background technology.

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

A kind of safety cabinet dual power supply safety alarm, including electric capacity C1, resistance R1, rectifier bridge T and chip IC 1, one end of described resistance R1 connects electric capacity C1 and 220V alternating current, the other end of electric capacity C1 connects the other end of resistance R1 and the port 1 of rectifier bridge T, the port 3 of rectifier bridge T connects the other end of 220V alternating current, the port 2 of rectifier bridge T connects resistance R2, the contact J-1 of switch S1 and relay J, the other end of resistance R2 connects relay J, the other end of relay J connects electric capacity C2, electric capacity C3, electric capacity C4, the negative electrode of diode D1, the negative electrode of diode D2, the emitter stage of audion V1, loudspeaker B, the port 4 of rectifier bridge T, the fixing end of of potentiometer RP1, the sliding end of potentiometer RP1, the negative pole of accumulator E and the pin 1 of chip IC 2, the other end of the contact J-1 of relay J connects the positive pole of accumulator E, the colelctor electrode of the other end connecting triode V1 of resistance R2 and the pin 1 of chip IC 2, the other end of resistance R3 connects another fixing end of potentiometer RP1 and the pin 3 of chip IC 1, the pin 4 of chip IC 1 connects the pin 2 of chip IC 2, the other end of resistance R4 and resistance R5, the other end of resistance R5 connects the anode of diode D1, the other end of resistance R6 connects the other end of electric capacity C2 and the pin 4 of chip IC 2, the pin 6 of chip IC 2 connects the other end of resistance R7, the other end of electric capacity C4 and the pin 7 of chip IC 2, the pin 3 of chip IC 2 connects resistance R8 and the other end of loudspeaker B, the other end of resistance R8 connects the anode of diode D2, the model of described chip IC 1 is LM321, the model of chip IC 2 is NE555.

As preferred version of the present utility model: described diode D2 is light emitting diode.

As preferred version of the present utility model: described audion V1 is phototriode.

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: this utility model safety cabinet dual power supply safety alarm uses light-sensitive element as detector, once safety cabinet is opened will send loud chimes of doom, alarm uses dual power supply simultaneously, prevent burglar from disconnecting civil power and cause that alarm lost efficacy, therefore there is the advantage triggering accurate, good concealment and dual power supply.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of safety cabinet dual power supply safety alarm;

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 obtain under not making creative work premise, broadly fall into the scope of this utility model protection.

Refer to Fig. 1, in this utility model embodiment, a kind of safety cabinet dual power supply safety alarm, including electric capacity C1, resistance R1, rectifier bridge T and chip IC 1, one end of described resistance R1 connects electric capacity C1 and 220V alternating current, the other end of electric capacity C1 connects the other end of resistance R1 and the port 1 of rectifier bridge T, the port 3 of rectifier bridge T connects the other end of 220V alternating current, the port 2 of rectifier bridge T connects resistance R2, the contact J-1 of switch S1 and relay J, the other end of resistance R2 connects relay J, the other end of relay J connects electric capacity C2, electric capacity C3, electric capacity C4, the negative electrode of diode D1, the negative electrode of diode D2, the emitter stage of audion V1, loudspeaker B, the port 4 of rectifier bridge T, the fixing end of of potentiometer RP1, the sliding end of potentiometer RP1, the negative pole of accumulator E and the pin 1 of chip IC 2, the other end of the contact J-1 of relay J connects the positive pole of accumulator E, the colelctor electrode of the other end connecting triode V1 of resistance R2 and the pin 1 of chip IC 2, the other end of resistance R3 connects another fixing end of potentiometer RP1 and the pin 3 of chip IC 1, the pin 4 of chip IC 1 connects the pin 2 of chip IC 2, the other end of resistance R4 and resistance R5, the other end of resistance R5 connects the anode of diode D1, the other end of resistance R6 connects the other end of electric capacity C2 and the pin 4 of chip IC 2, the pin 6 of chip IC 2 connects the other end of resistance R7, the other end of electric capacity C4 and the pin 7 of chip IC 2, the pin 3 of chip IC 2 connects resistance R8 and the other end of loudspeaker B, the other end of resistance R8 connects the anode of diode D2, the model of described chip IC 1 is LM321, the model of chip IC 2 is NE555.

Diode D2 is light emitting diode. Audion V1 is phototriode. Relay J is normally-closed contact relay.

Operation principle of the present utility model is: 220V line voltage enters in rectifier bridge T after resistance R1 and the electric capacity C1 capacitance-resistance voltage reduction circuit blood pressure lowering formed and carries out rectification, the output voltage of rectifier bridge 2 foot makes relay J turn on after resistance R2, its long closed contact J-1 disconnects, during use, Guan Bi switch S1, circuit obtains electric, phototriode V1 is placed in safe interior, under normal circumstances, safety cabinet cuts out, its internal dull thread, phototriode V1 ends, when there being ambient light to irradiate, V1 turns on, the 1 foot voltage of IC1 is lower than 3 foot voltages, at this moment IC1 is output as high potential, make light emitting diode D1 luminous, expression all goes well.If having and opening safety cabinet, having light to be shining into safety cabinet, phototriode V1 turns on, the output of IC1 step-down immediately, this electronegative potential pulse-triggered monostable circuit IC2, making 3 foot output high potentials of chip IC 2, start loudspeaker B and send chimes of doom sounding, light emitting diode D2 is luminous simultaneously, if burglar disconnects supply line in advance, then relay J dead electricity, its normally-closed contact J-1 recovers Guan Bi, accumulator E provide electric energy to circuit. Guarantee the uninterrupted power supply of alarm.

Claims

1. a safety cabinet dual power supply safety alarm, including electric capacity C1, resistance R1, rectifier bridge T and chip IC 1, it is characterized in that, one end of described resistance R1 connects electric capacity C1 and 220V alternating current, the other end of electric capacity C1 connects the other end of resistance R1 and the port 1 of rectifier bridge T, the port 3 of rectifier bridge T connects the other end of 220V alternating current, the port 2 of rectifier bridge T connects resistance R2, the contact J-1 of switch S1 and relay J, the other end of resistance R2 connects relay J, the other end of relay J connects electric capacity C2, electric capacity C3, electric capacity C4, the negative electrode of diode D1, the negative electrode of diode D2, the emitter stage of audion V1, loudspeaker B, the port 4 of rectifier bridge T, the fixing end of of potentiometer RP1, the sliding end of potentiometer RP1, the negative pole of accumulator E and the pin 1 of chip IC 2, the other end of the contact J-1 of relay J connects the positive pole of accumulator E, the colelctor electrode of the other end connecting triode V1 of resistance R2 and the pin 1 of chip IC 2, the other end of resistance R3 connects another fixing end of potentiometer RP1 and the pin 3 of chip IC 1, the pin 4 of chip IC 1 connects the pin 2 of chip IC 2, the other end of resistance R4 and resistance R5, the other end of resistance R5 connects the anode of diode D1, the other end of resistance R6 connects the other end of electric capacity C2 and the pin 4 of chip IC 2, the pin 6 of chip IC 2 connects the other end of resistance R7, the other end of electric capacity C4 and the pin 7 of chip IC 2, the pin 3 of chip IC 2 connects resistance R8 and the other end of loudspeaker B, the other end of resistance R8 connects the anode of diode D2, the model of described chip IC 1 is LM321, the model of chip IC 2 is NE555.

2. a kind of safety cabinet dual power supply safety alarm according to claim 1, it is characterised in that described diode D2 is light emitting diode.

3. a kind of safety cabinet dual power supply safety alarm according to claim 1, it is characterised in that described audion V1 is phototriode.

4. a kind of safety cabinet dual power supply safety alarm according to claim 1, it is characterised in that described relay J is normally-closed contact relay.