CN2241665Y - Multi-functional burglar alarm - Google Patents

Abstract

The utility model relates to a multifunctional anti-theft alarm, comprising a delay circuit for starting up, an opening and closing circuit for disassembly prevention, a delay circuit for alarming, a circuit for preventing self vibration, a cue circuit for the starting up, a control circuit for interval sound, a circuit for preventing the modulation of an alarm sound, an oscillating and a power amplification circuits, a buzzer, a battery, a lock core, an anti-disassembly outer shell, a vibroswitch, etc. One output path of the vibroswitch is connected with the circuit for preventing the self vibration, and the other path is sent to the opening and closing circuit for the disassembly prevention by the delay circuit for the starting up. The output of the opening and closing circuit for the disassembly prevention is sent to the control circuit for the interval sound by the delay circuit for the alarming and the cue circuit for the starting up, and the output of the control circuit fort he interval sound is sent to the buzzer by an alarm oscillation circuit and the power amplification circuit.

Description

Multi-function robbery protection alarm

The utility model relates to a kind of annunciator, particularly a kind of multi-function robbery protection alarm.

Existing anti-theft lock for bicycle all is to make the outside of lock more firm from the external and internal compositions of lock own and two aspects of material of lock body, the difficulty that increases picking lock or cut off lock, but can not be when being stolen bicycle by some way to the car owner report to the police or notice near other people, can not prevent the burglar directly car is moved, is transported stealthily after phenomenon such as picking lock again.According to reference to existing bicycle anti-theft alarm device, generally be the mode that adopts jack to trigger in addition.Adopt this mode, not only sensitivity is inconsistent, and certain directivity is arranged, and the circuit power consumption is high, often change battery, and the design of circuit is to the greatest extent imperfect yet.And common Car Burglar Alarm fails also to notice that to the protection of self external sabotaging do not had certain strick precaution.

The purpose of this utility model be to avoid above-mentioned the deficiencies in the prior art part and provide a kind of do not have obvious directivity, highly sensitive, sound intensity is big, multi-function robbery protection alarm easy to use.

The purpose of this utility model can reach by following measure: the utility model comprises the warning oscillating circuit, power amplifier, buzzer phone, direct supply, lock core, it is characterized in that: the time delay circuit of starting shooting in addition, the breaking-proof switch circuit, warning and delaying circuit, prevent self vibrating circuit, the start cue circuit, between ring control circuit, vibroswitch S2, the tamper shell, the output one tunnel of vibroswitch S2 is joined with anti-self vibrating circuit, the breaking-proof switch circuit is delivered to by the start time delay circuit in another road, warning and delaying circuit is passed through in the output of breaking-proof switch circuit, the start cue circuit rings control circuit between delivering to, and the output of a sound control circuit is by the warning oscillating circuit, power amplifier is delivered to buzzer phone.

The purpose of this utility model can also reach by following measure: vibroswitch S2 is made of two contacts, columniform insulation gum cover, weight, and two metallic contacts are inserted in insulating gel and put, and weight embeds between two contacts.The tamper shell is injection molded by engineering plastics, and the geometrical clamp on it is equipped with four metal weld tabs, and the both sides of shell have metallic channel, circuit trace can be linked on four weld tabs by metallic channel, and, make the short circuit of four metal weld tabs by screwing the installation screw, constitute breaking-proof switch S1.Vibroswitch S2 joins by 1 pin of capacitor C 6 with IC 2:D, 3 pin of IC2:D and 2 pin of IC 2:C join, 1 pin of IC2:C is by resistance R 9, breaking-proof switch S1 and direct supply join, and with capacitor C 7, resistance R 10 is joined, 3 pin of IC2:C are by diode D3 and capacitor C 4,1 of resistance R 8 and IC 2:8,2 pin join, 3 pin of IC2:8 are leaded up to diode D4, capacitor C 9 is joined with vibroswitch S2,1 pin of another road and IC 2:A joins, 2 pin of IC2:A and capacitor C 3, resistance R 7 is joined, 3 pin of IC2:A join by 1 pin of diode D2 and IC 1:C, and 3 pin of IC1:D join by 1 pin of diode D1 and IC1:C.On a sound control circuit, also can insert an anti-chimes of doom modified tone circuit that constitutes by diode D1.

Fig. 1 is a functional-block diagram of the present utility model;

Fig. 2, Fig. 3 are the structural representation of tamper shell;

Fig. 4 is the structural representation of vibroswitch;

Fig. 5 is an electrical schematic diagram of the present utility model.

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 1, the utility model by start time delay circuit 1, breaking-proof switch circuit 2, warning and delaying circuit 3, anti-self vibrating circuit 4, start cue circuit 5, ring control circuit 6, anti-chimes of doom modified tone circuit 7, warning oscillating circuit 8, power amplifier 9, buzzer phone 10, direct supply 11, lock core 12, vibroswitch S2, tamper shell 14 etc. and form.

With reference to Fig. 4,5 is two contacts, be made of copper, and electroplate, it is functional to keep in touch; 16 is a columniform insulation gum cover, and two contacts 15 are inserted on the insulation gum cover 16; 17 is weight, can embed between two contacts 15, forms vibroswitch S2, and the design-calculated vibroswitch just can be kept in touch well like this, makes short circuit between two contacts, and after switch was given a shock, weight will be beated, and switch moment opens a way.When switch was placed vertically, because weight is microscler, and two was circular arc, so weight always can be swung on one side, switch is kept in touch well.When being shaken, switch can produce the moment open circuit equally.The triggering input end than switch incircuit, under normal conditions, this switch is shorted to ground to the binary pair input, makes input end remain low level.Circuit remains when deploying troops on garrison duty state normally, and after being subjected to illegal vibrations, trigger switch will be opened a way moment, sends positive triggering pulse to alarm trigger, and control circuit is reported to the police.

Make by hard engineering plastics with reference to Fig. 2, Fig. 3, tamper shell 14; Wherein 18 for being loaded on four sheetmetals on the geometrical clamp 20, and 19 is the metallic channel of both sides shell; The circuit connection of breaking-proof switch is to link thus on four weld tabs 18, and by screwing the installation screw, makes four weld tabs short circuits, forms a good breaking-proof switch S2.When the installation screw being pulled down or unclamp, the loop will disconnect, and trigger circuit are reported to the police.Lock core 12 can be installed on the tamper shell 14 in addition; Direct supply (battery) 11 and electronic circuit board 21 can be installed in shell 14; Geometrical clamp 20 can be clamped vibroswitch S2.

With reference to Fig. 5, when the power supply opening of Car Burglar Alarm (S3 closes), C3 charges by R7, and the charging constant 0.5S of C3 is so be 0 level during the start of the positive terminal of C3.Anti-phase by IC2:A, be output as high level, and trigger what circuit of back, produce " too " two prompt tones.0.5S back C3 positive terminal becomes high level, stops the multistage work in back by IC2:A is anti-phase.Therefore produced the sound of start prompting 0.5S.

For preventing to trigger this circuit immediately after the car owner from deploying troops on garrison duty, in start moment, C5 charges by D12, and it is 8S that the positive terminal of C5 keeps low level time, and locked IC2:D is output as high level, and it is all invalid to entire circuit whether trigger switch S2 is triggered.After reaching start time-delay 8S, warning just can be triggered.

Anti-disassemble closes circuit to be made up of S1, R9, R10, C7.S1 is that the metal weld tabs and the screw of above-mentioned tamper shell formed, and S1 is short circuit under the normality, and keeping one of them input end of IC2:C is high level, makes circuit be in quiescent operation.When the screw of tamper shell is split, the S1 open circuit, the input end that is directed at IC2:C is a low level, through the anti-phase high level that is output as of IC2:C, the circuit triggers of back level is reported to the police.

Warning and delaying circuit is made up of C4, R8, D3.Be subjected to the triggering of S1 or S2 when circuit after, IC2:C is output as high level, and C4 moment is full of; When IC2:C became low level again again, because the unilateral conductivity of D3, C4 can only discharge by R8, and the time constant of discharge is about 8S, reached keep alarm sound at second about 8 so in a single day circuit is triggered.

Vibroswitch S2 is extremely sensitive, and slight vibrations all are easy to cause switch work.Because this Car Burglar Alarm reports to the police by sound, when reporting to the police, have very strong acoustic pressure will be to Car Burglar Alarm in some parts cause vibration, comprise S2.S2 is constantly triggered, and forms a positive feed back, makes that annunciator can not stop to report to the police, till dead battery, so this control circuit has used the circuit of a novelty, to reach the purpose that stops to report to the police.This circuit is made up of D4, C9, R13, C6, R11, S2.Under the normality, the IC2:B mouth is a high level, and the power supply of circuit triggers end is to be obtained by the mouth of IC2:B by D4 and R13, joins by R11 and S2.Open a way moment when S2 is subjected to vibration, C6 triggers alarm work to positive triggering pulse of IC2:D output, makes the output of IC2:B become low level, and C9 after S2 is put and decided electricity, also becomes low level by R13, and is between the warning time delay that the IC2:D input end is locked.Have only after chimes of doom stops, C9 could obtain the positive supply charging from the IC2:D mouth again by D4, and S2 just might obtain positive supply by R13 and prepare to vibrate work next time.

Between forming, IC1:C, IC1:D two-stage circuit ring control circuit, and by the high level driving work of IC2:A output.D1 forms the complete cycle control circuit, modifies tone to prevent alarm sound, and R6, D2 guarantee that the IC1:C end is 0 level when static state.

IC1:A, IC1:B two-stage circuit are formed the oscillator of oscillation frequency 3KHZ, to promote back level alarm sound power amplification circuit output certain voltage, boost by step-up transformer 8, send alarm sound hurriedly interrupted, monotone by buzzer phone Y1 at last.S3 is a source switch, and C8 is a filter capacitor, is connected on before the source switch, to guarantee each start start prompting sound 0.5S is arranged all.

The model of IC 1, IC2 is CD4011.

This annunciator is also applicable to occasions such as family, hotels.

The utility model has following advantage compared to existing technology:

1, sound-producing device is arranged, under abnormal conditions, energy sounding reminding owner or near people, To frighten the burglar away. And in situation about again not triggering, later on can be certainly through 8 seconds sounds Moving stop alarm sound keeps the state of deploying troops on garrison duty, then in case again be triggered.

2, used highly sensitive vibrating sensor. It is a kind of novel design, to reach To omnibearing sensitivity, can effectively prevent multiple auto theft gimmick.

3, little electric current, little energy consumption, sound intensity are big, can the criminal of preventing burglar, and need not often change battery.

4, need not can't cut off the control circuit power supply by special-purpose key.

5, crashproof, pick-proof, thief-proof, waterproof, corrosion prevention, period of service is long.

6, be provided with the moment prompting of deploying troops on garrison duty.When using key to unblank to deploy troops on garrison duty, annunciator can send " too " two, the prompting Car Burglar Alarm is located under the state of deploying troops on garrison duty.

7, alarm sound is rapid interrupted single-tone, with difference auto alarm and other warning, specially refers to the bicycle warning.

Claims (5)

1, a kind of multi-function robbery protection alarm, comprise warning oscillating circuit 8, power amplifier 9, buzzer phone 10, direct supply 11, lock core 12, it is characterized in that: the time delay circuit 1 of starting shooting in addition, breaking-proof switch circuit 2, warning and delaying circuit 3, prevent self vibrating circuit 4, start cue circuit 5, between ring control circuit 6, vibroswitch S2, tamper shell 14, the output one tunnel of vibroswitch S2 is joined with anti-self vibrating circuit 4, breaking-proof switch circuit 2 is delivered to by start time delay circuit 1 in another road, the output of breaking-proof switch circuit 2 is by warning and delaying circuit 3, start cue circuit 5 rings control circuit 6 between delivering to, and the output of a sound control circuit 6 is by warning oscillating circuit 8, power amplifier 9 is delivered to buzzer phone 10.

2, annunciator according to claim 1 is characterized in that; Vibroswitch S2 is made of two contacts 15, columniform insulation gum cover 16, weight 17, and two metallic contacts 15 are inserted in insulating gel and put, and weight 17 embeds between two contacts 15.

3, annunciator according to claim 1, it is characterized in that: tamper shell 14 is injection molded by engineering plastics, geometrical clamp 20 on it is equipped with four metal weld tabs 18, the both sides of shell 14 have metallic channel 19, circuit trace can be linked on four weld tabs 18 by metallic channel 19, and, make the short circuit of four metal weld tabs by screwing the installation screw, constitute breaking-proof switch S1.

4, annunciator according to claim 1, it is characterized in that: vibroswitch S2 joins by 1 pin of capacitor C 6 with IC 2:D, 3 pin of IC2:D and 2 pin of IC 2:C join, 1 pin of IC2:C is by resistance R 9, breaking-proof switch S1 and direct supply join, and with capacitor C 7, resistance R 10 is joined, 3 pin of IC2:C are by diode D3 and capacitor C 4,1 of resistance R 8 and IC 2:8,2 pin join, 3 pin of IC2:8 are leaded up to diode D4, capacitor C 9 is joined with vibroswitch S2,1 pin of another road and IC 2:A joins, 2 pin of IC2:A and capacitor C 3, resistance R 7 is joined, 3 pin of IC2:A join by 1 pin of diode D2 and IC 1:C, and 3 pin of IC1:D join by 1 pin of diode D1 and IC1:C.

5, annunciator according to claim 1 is characterized in that: also can insert an anti-chimes of doom modified tone circuit 7 that is made of diode D1 on a sound control circuit 6.

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