CN202563620U - Antitheft alarm device - Google Patents
Antitheft alarm device Download PDFInfo
- Publication number
- CN202563620U CN202563620U CN2012201217106U CN201220121710U CN202563620U CN 202563620 U CN202563620 U CN 202563620U CN 2012201217106 U CN2012201217106 U CN 2012201217106U CN 201220121710 U CN201220121710 U CN 201220121710U CN 202563620 U CN202563620 U CN 202563620U
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- CN
- China
- Prior art keywords
- alarm
- integrated
- processing unit
- touch switch
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Burglar Alarm Systems (AREA)
Abstract
The present utility model discloses an antitheft alarm device. The device comprises a power supply, a switch, a touch switch, an integrated processing unit and an alarm unit, the touch switch is a warning line formed by a long and thin conducting wire, the integrated processing unit is a micro processing circuit formed by 555 integrated chips, and the alarm unit is a circuit formed by loudspeakers. The device is simple in design and reasonable in structure, when the warning line is touched and an alarm sound is given out by the loudspeakers, precautions can be taken against calamity, the device is suitable for ordinary families, supermarkets, banks and other places, and overhauling and maintenance are convenient.
Description
Technical field
The utility model belongs to the electronic anti-theft technical field, is specifically related to a kind of break line type burglar alarm.
Background technology
Anti-theft technique is along with the progress of science and technology gets the most structural circuits complicacies of also more and more faster, present anti-theft device, and maintenance bothers, moreover a lot of apparatus cost is expensive, is not suitable for average family or management on small scale owner use.
The utility model content
The utility model purpose: the purpose of the utility model is in order to solve the deficiency of prior art, a kind of simple and easy and right burglar alarm easy to maintenance to be provided.
Technical scheme: the described a kind of burglar alarm of the utility model; Comprise power supply, switch, touch switch; Integrated processing unit and alarm unit; Said touch switch is a warning line that elongated lead is set as, and said integrated processing unit is the micro-processor interface circuit of forming with 555 integrated chips, and said alarm unit is the circuit that loudspeaker is formed; Wherein 3 pin of 555 integrated chips are connected with capacitor C 2, and C2 is connected with loudspeaker again, and 4 pin of said 555 integrated chips are connected with lead a end with resistance R 3 respectively, and said lead b end is connected with power cathode.
Beneficial effect: the utility model simplicity of design, rational in infrastructure, loudspeaker sends chimes of doom when touching disconnected warning line, prevents trouble before it happens, and applicable to places such as general family, supermarket, banks, and repair and maintenance is convenient.
Description of drawings
Accompanying drawing 1 is the utility model electrical block diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Shown in accompanying drawing 1, a kind of burglar alarm comprises power supply; Switch; Touch switch, integrated processing unit and alarm unit, touch switch are a warning line that elongated lead is set as; Integrated processing unit is the micro-processor interface circuit of forming with 555 integrated chips, and alarm unit is the circuit that loudspeaker is formed; Wherein 3 pin of 555 integrated chips are connected with capacitor C 2, and C2 is connected with loudspeaker again, and 4 pin of said 555 integrated chips are connected with lead a end with resistance R 3 respectively, and said lead b end is connected with power cathode.
During use, can warning line ab be located at the mouth of entering, normal condition lower wire ab conducting, 4 pin of 555 mechanical chips and ground short circuit, 3 pin output low levels, loudspeaker alarm free sound; When lead ab is bumped when disconnected by the lawless person, 4 pin interrupt with the ground short circuit, and current potential raises, the multi-harmonic-oscillations starting of oscillation, and loudspeaker sends chimes of doom.
Claims (1)
1. burglar alarm; Comprise power supply and switch; It is characterized in that: also comprise touch switch, integrated processing unit and alarm unit, said touch switch are a lead ab; Said integrated processing unit is the micro-processor interface circuit of forming with 555 integrated chips, and said alarm unit is the circuit that loudspeaker is formed; 3 pin of said 555 integrated chips are connected with capacitor C 2, and C2 is connected with loudspeaker again, and 4 pin of said 555 integrated chips are connected with lead a end with resistance R 3 respectively, and said lead b end is connected with power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201217106U CN202563620U (en) | 2012-03-28 | 2012-03-28 | Antitheft alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201217106U CN202563620U (en) | 2012-03-28 | 2012-03-28 | Antitheft alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202563620U true CN202563620U (en) | 2012-11-28 |
Family
ID=47213249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201217106U Expired - Fee Related CN202563620U (en) | 2012-03-28 | 2012-03-28 | Antitheft alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202563620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616413A (en) * | 2015-03-01 | 2015-05-13 | 周芸 | Broken line type multi-purpose alarm device |
-
2012
- 2012-03-28 CN CN2012201217106U patent/CN202563620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616413A (en) * | 2015-03-01 | 2015-05-13 | 周芸 | Broken line type multi-purpose alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130328 |