CN203165120U - Dual-trigger electronic anti-theft alarm system - Google Patents
Dual-trigger electronic anti-theft alarm system Download PDFInfo
- Publication number
- CN203165120U CN203165120U CN 201320140062 CN201320140062U CN203165120U CN 203165120 U CN203165120 U CN 203165120U CN 201320140062 CN201320140062 CN 201320140062 CN 201320140062 U CN201320140062 U CN 201320140062U CN 203165120 U CN203165120 U CN 203165120U
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- trigger
- electronic anti
- alarm
- theft
- flip flop
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Abstract
The utility model discloses a dual-trigger electronic anti-theft alarm system, which comprises an alarm circuit, trigger devices and an alarm device, wherein the trigger devices and the alarm device are connected with the alarm circuit in series, the trigger devices are an induction trigger device and a disconnection trigger device, the induction trigger device is a normally open type reed switch with a magnet, the disconnection trigger device is a wire drawing type trigger switch, the induction trigger device and the disconnection trigger device are connected in series and then connected with the alarm device. According to the utility model, under the condition that one trigger device is out of operation, the other trigger deice can still play a role, thereby being capable of improving the safety coefficient of the electronic anti-theft device. In addition, the dual-trigger electronic anti-theft alarm system is simple in structure, low in production cost and significant in social and economic benefits.
Description
Technical field
The utility model relates to the electronic anti-theft warning system in electronic warning field, particularly a kind of dual triggering.
Background technology
The appearance of electronic alarm has changed the anti-theft measure of traditional mechanical locking-type, has increased the safety coefficient of such measures greatly, also possesses certain reliability simultaneously, is easily understood, and realizes easily, has therefore obtained using widely.But common electronic alarm all adopts the substance flip flop equipment to realize warning function, when in a single day the flip flop equipment of this alarm breaks down or is destroyed by the robber, then whole warning device does not just have warning function just as illusory, as seen there is also fatal defective.
The utility model content
In order to overcome above-mentioned deficiency, further improve the reliability of electronic alarm device, the utility model provide a kind of simple in structure, production cost is lower and safety coefficient is high, the electronic anti-theft warning system of dual triggering.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of electronic anti-theft warning system of dual triggering, include flip flop equipment, the warning device of warning circuit and series connection with it, described flip flop equipment is divided into induction trigger device, broken string flip flop equipment, wherein said induction trigger device is the open type dry-reed tube switch of carry magnet, described broken string flip flop equipment is the stay-supported trigger switch, and the two series connection back links to each other with described warning circuit.
As improvement of the technical scheme, described warning device comprises alarm lamp and alarming horn, and alarm lamp sends warning light, and alarming horn sends the warning audio, and anti-theft alarm function is played in the acousto-optic combination effectively.
Preferably, described warning circuit adopts the NE555 chip, and it forms an oscillatory circuit by 555 time base circuits, this oscillatory circuit output vibration alerting signal is to alarm, make alarm be able to normal operation, not only production cost is lower to adopt NE555 chip manufacturing oscillatory circuit, and stable performance.
The beneficial effects of the utility model are:
The electronic anti-theft warning system of a kind of dual triggering of the present utility model, employing has the dual triggering warning circuit of induction trigger device and broken string flip flop equipment, can be under the situation that a kind of flip flop equipment lost efficacy, another kind of flip flop equipment still can play a role, so just can improve the safety coefficient of electric anti-thief device, and the utility model is simple in structure, production cost is low, and economic results in society are remarkable.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and example,
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model circuit theory diagrams.
Embodiment
With reference to accompanying drawing 1, the electronic anti-theft warning system of a kind of dual triggering of the present utility model, it comprises flip flop equipment, the warning device of warning circuit 1 and series connection with it, and flip flop equipment can be divided into induction trigger device 2 and broken string flip flop equipment 3, wherein induction trigger device 2 is the open type dry-reed tube switch of carry magnet, broken string flip flop equipment 3 is the stay-supported trigger switch, and the two series connection back links to each other with described warning circuit 1.
The utility model can be applied in most occasions, and such as formation antitheft door, burglary-resisting window etc., and the largest benefit that it brings namely is the raising of anti-theft effect and reliability.Antitheft door of the present utility model is installed, its course of work is such: when door enters anti-theft state, tongue tube in the induction trigger device 2 and magnet cooperatively interact and make tongue tube keep normally off, when door is opened by unauthorized, tongue tube separates with magnet, tongue tube disconnects, and warning circuit 1 is triggered; If induction trigger device 2 lost efficacy on the other hand, can't operate as normal, when door is entered by unauthorized, broken string flip flop equipment 3 can rupture across the conductive thread of doorframe, and then triggers warning circuit 1, alarm work, play effective antitheft effect with this, so it can be under the situation that a kind of flip flop equipment lost efficacy, another kind of flip flop equipment still can play a role, and so just improves the safety coefficient of electric anti-thief device.Wherein said warning device comprises alarm lamp 4 and alarming horn 5, and alarm lamp 4 sends warning light, and alarming horn 5 sends the warning audio, and anti-theft alarm function is played in the acousto-optic combination effectively.
By reference to the accompanying drawings 2, warning circuit 1 of the present utility model adopts the NE555 chip, and an oscillatory circuit by 555 time base circuits are formed from the OUT pin output rectangle wave of oscillation, can make luminotron LED1 and loudspeaker LS1 luminous and sounding type, generation sound and light alarm effect.Dry-reed tube switch K1 and pullswitch K2 series connection insert the RST pin preset end of 555 chips, make reset terminal ground connection.Press switch S 1, then circuit is started working, this moment 555 chips RST pin preset end ground connection, reset terminal is effective, 555 chip resets, OUT pin output low level, luminotron LED1 and loudspeaker LS1 all are failure to actuate, and do not produce warning; When dry-reed tube switch K1 and pullswitch K2 were triggered, switch disconnected, and the RST pin of 555 chips is put high level, OUT pin output rectangle waveform, and luminotron LED1 and loudspeaker LS1 luminous and sounding type produce the sound and light alarm effect thus.In addition, the utility model simple in structure, convenient installation in addition, the advantage that cost is low.
The above is preferred embodiment of the present utility model, and the utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Claims (3)
1. the electronic anti-theft warning system of a dual triggering includes flip flop equipment, the warning device of warning circuit (1) and series connection with it, it is characterized in that:
Described flip flop equipment is divided into induction trigger device (2), broken string flip flop equipment (3), wherein said induction trigger device (2) is the open type dry-reed tube switch of carry magnet, described broken string flip flop equipment (3) is the stay-supported trigger switch, and the two series connection back links to each other with described warning circuit (1).
2. the electronic anti-theft warning system of a kind of dual triggering according to claim 1, it is characterized in that: described warning device comprises alarm lamp (4) and alarming horn (5).
3. the electronic anti-theft warning system of a kind of dual triggering according to claim 1 is characterized in that: described warning circuit (1) employing NE555 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140062 CN203165120U (en) | 2013-03-25 | 2013-03-25 | Dual-trigger electronic anti-theft alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320140062 CN203165120U (en) | 2013-03-25 | 2013-03-25 | Dual-trigger electronic anti-theft alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203165120U true CN203165120U (en) | 2013-08-28 |
Family
ID=49026287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320140062 Expired - Lifetime CN203165120U (en) | 2013-03-25 | 2013-03-25 | Dual-trigger electronic anti-theft alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203165120U (en) |
-
2013
- 2013-03-25 CN CN 201320140062 patent/CN203165120U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |