CN200993808Y - Electric wire anti-theft alarm - Google Patents
Electric wire anti-theft alarm Download PDFInfo
- Publication number
- CN200993808Y CN200993808Y CN 200620172430 CN200620172430U CN200993808Y CN 200993808 Y CN200993808 Y CN 200993808Y CN 200620172430 CN200620172430 CN 200620172430 CN 200620172430 U CN200620172430 U CN 200620172430U CN 200993808 Y CN200993808 Y CN 200993808Y
- Authority
- CN
- China
- Prior art keywords
- relay
- power
- power lead
- triode
- audio
- 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 utility model provides a wire anti-theft alarm provided with two transformers with external power connector lugs, which are respectively connected with a rectifier diode with two branch power line. After the parallel connection of filtering capacitance and LED, a relay is connected in series to form a power loop. The switch connector lug of the relay is provided with power lines. After the power line of the battery, a triode, a loudspeaker and an audio-oscillation chip are connected in series in turn. At the same time, the power line is arranged for connection between the triode and the audio-oscillation chip and the audio-oscillation chip is arranged between the power line and the battery to form a loop, and a manual switch and a relay are provided to form a power loop. The utility model connects two external branch power lines in front of the transformer with the electric lines. When the power line is cut or stolen, the relay starts the loudspeaker to give out the alarm so that the cost is low and power consumption is less. The utility model is the best alarm device with cutting and theft prevention for field long-range power lines and is in particular applicable for night cutting and theft prevention in marketplaces, factories and recreation places.
Description
Affiliated technical field
The utility model relates to a kind of alarm, a kind of specifically electric wire anti-theft alarm.
Background technology
Now along with expanding economy, production and household electricity have become and the closely-related major issue of our survival and development, continuous increase along with power consumption, with electric line also progressively repacking, because it is much often exposed outside with electric line, make it to be cut, to steal and sell phenomenon serious day by day, until normally carrying out that influence is produced and lived, especially the dead of night, stolen phenomenon is even more serious.
The utility model content
For the purpose of this utility model is to provide a kind of electric wire anti-theft alarm, can directly be contained in on the electric line, cut when stealing electric wire occurring, can give the alarm automatically.
Comprise transformer in the technical scheme that the utility model adopted and by the latter linked filter capacitor of commutation diode step-down, light emitting diode, relay, battery, triode and the audio oscillation chip and the loudspeaker that are used to report to the police, comprise that also one is used to open the hand switch of alarm and the power lead that is used to be connected, the technical measures that adopted are: the transformer bifurcation power lead that is provided with two external power supply the end of a thread respectively connects and constitutes the monitoring power supply loop with transformer after a commutation diode polyphone is succeeded electrical equipment; Polyphone connects triode, loudspeaker and audio oscillation chip in regular turn after power lead being set on switch the end of a thread of relay connect the power lead that battery is housed, between triode and audio oscillation chip, establish simultaneously power lead in addition and connect and communicate, and the audio oscillation chip is provided with power lead and institute's packed battery connects and composes the warning electric power loop; Establish a power lead at the front end of triode and swing chip with audio frequency and be connected, and a hand switch is set and relay constitutes warning power supply and monitoring power supply link circuit.
For the electric current after the transformation being carried out the duty of filtering and demonstration burglar alarm, a filter capacitor and a light emitting diode are set also between two commutation diodes that transformer bifurcation power lead is connected.Burglar alarm with connect with electric wire after, set light emitting diode promptly sends light and shows in running order.
The relay that is connected on the power lead of described commutation diode rear end can be a relay, also can be for guaranteeing relay two relays of contacting simultaneously that do not meet with an accident.
The utility model be connected with electric line after, after transformer and commutation diode and filter capacitor carry out transformation, rectification, filtering to relay input 12V direct supply, when appearance is cut with electric line, relay is a cut-off switch, the audio oscillation chip is promptly by institute's packed battery power work, through diode sound signal amplified for the loudspeaker prompting that gives the alarm.
The beneficial effects of the utility model are embodied in: after connecting with electric line, alerting signal sensitivity, little power consumption use the 3V battery to get final product, and with low cost, stable operating voltage, and duty is good.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is installed circuit and single relay connection diagram thereof for the utility model.
Accompanying drawing 2 is installed circuit and double relay connection diagram thereof for the utility model.
Among the figure: 1, transformer, 2, external power supply the end of a thread, 3, commutation diode, 4, filter capacitor, 5, light emitting diode, 6, relay, 7, battery, 8, triode, 9, the audio oscillation chip, 10, loudspeaker, 11, hand switch, 12, power lead.
Embodiment
In accompanying drawing 1 embodiment, it is a relay 6 that the transformer 1 bifurcation power lead 12 that is provided with two power supply the end of a thread 2 respectively connects the relay 6 that a commutation diode 3 contacted.
Accompanying drawing 2 embodiment are two relay 6 connected modes, promptly respectively connect a commutation diode 3 polyphones at the transformer 1 bifurcation power lead 12 that is provided with two external power supply the end of a thread 2 and connect two relays, 6 backs and transformer 1 formation monitoring power supply loop.Can guarantee in use, just in case it is malfunctioning and another relay 6 still can guide alarm circuit a relay 6 to occur.
During duty: circumscripted power line 2 be connected with electric line, the commutation diode 3 that transformer 1 is connected and and the filter capacitor 4 that connects power supply is carried out after transformation, rectification, the filtering to relay 6 input 12V galvanic current sources, after relay 6 obtains voltage, produce magnetic field, cut-off switch is disconnected, and the audible alarm circuit of this moment is in off position; When appearance was cut with electric line, relay 6 magnetic fields disappeared, the cut-off switch homing, and audible alarm circuit is promptly worked, and audio oscillation chip 9 starts by the power supply of battery 7, delivers to loudspeaker 10 through the amplification of triode 8 audio frequency and gives the alarm.
Between the commutation diode 3 and the light emitting diode 5 that connects can circumscripted power line head 2 be connected with electric line after send light, point out in running orderly, after the outage, light disappears, also can be from visually producing the alarm prompting.
Between described relay 6 and the audio oscillation chip 9 the hand switch of adorning 11 can start and close the work or the off position of alarm manually, when working by day, can close alarm and make it to be in off position.
Claims (3)
1, a kind of electric wire anti-theft alarm, comprise transformer (1) and pass through the latter linked filter capacitor of commutation diode (3) step-down (4), light emitting diode (5), relay (6), battery (7), triode (8) and audio oscillation chip (9) that is used to report to the police and loudspeaker (10), also comprise a hand switch (11) and the power lead that is used to be connected (12) that is used to open alarm, it is characterized in that: transformer (1) the bifurcation power lead (12) that is provided with two external power supply the end of a thread (2) respectively connects a commutation diode (3) polyphone and succeeds electrical equipment (6) back and transformer (1) formation monitoring power supply loop; Polyphone connects triode (8), loudspeaker (10) and audio oscillation chip (9) in regular turn after power lead (12) being set on switch the end of a thread of relay (6) connect the power lead (12) that battery (7) are housed, between triode (8) and audio oscillation chip (9), establish simultaneously power lead (12) in addition and connect and communicate, and audio oscillation chip (9) is provided with power lead (12) and institute's packed battery (7) connects and composes the warning electric power loop; Establish a power lead (12) at the front end of triode (8) and swing chip (9) with audio frequency and be connected, and a hand switch (11) is set constitutes warning power supply and monitoring power supply link circuit with relay (6).
2, electric wire anti-theft alarm according to claim 1 is characterized in that: it goes back and is connected with a filter capacitor (4) and a light emitting diode (5) between the two two commutation diodes (3) that described transformer (1) bifurcation power lead (12) is connected.
3, electric wire anti-theft alarm according to claim 1 is characterized in that: the relay (6) that is connected on commutation diode (3) rear end power lead (12) can connect a relay (6) or two relays (6) of contacting simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620172430 CN200993808Y (en) | 2006-12-15 | 2006-12-15 | Electric wire anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620172430 CN200993808Y (en) | 2006-12-15 | 2006-12-15 | Electric wire anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993808Y true CN200993808Y (en) | 2007-12-19 |
Family
ID=38946882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620172430 Expired - Fee Related CN200993808Y (en) | 2006-12-15 | 2006-12-15 | Electric wire anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993808Y (en) |
-
2006
- 2006-12-15 CN CN 200620172430 patent/CN200993808Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |