CN2159046Y - Anti-theft alarm - Google Patents
Anti-theft alarm Download PDFInfo
- Publication number
- CN2159046Y CN2159046Y CN 92231506 CN92231506U CN2159046Y CN 2159046 Y CN2159046 Y CN 2159046Y CN 92231506 CN92231506 CN 92231506 CN 92231506 U CN92231506 U CN 92231506U CN 2159046 Y CN2159046 Y CN 2159046Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- amplifier
- trigger
- alarm
- signal generator
- 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
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 230000005236 sound signal Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Images
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses an anti-theft alarm. The utility model is composed of a triggering circuit and an alarm circuit, wherein, the triggering circuit is composed of a lock type switch, a trigger and a relay. The triggering circuit is connected with a current return circuit in series, the trigger is composed of a copper tube and a counterweight, and the counterweight is fixed to the inner part of the copper tube. The alarm circuit is composed of a signal generator, an amplifier and a horn; the alarm circuit is connected with the circuit in series. The output terminal of the signal generator IC 1 is connected with the input terminal of the amplifier IC 2, and the output terminal of the amplifier is connected with the horn or the output terminal of the audio signal of a television.
Description
The utility model relates to alarm, particularly a kind of burglar alarm.
Existing alarm circuit complexity, the cost height, and also the thief destroys easily, and factor of assurance is poor.
The purpose of this utility model provides a kind of circuit simple, and cost is low, the alarm of good anti-theft effect.
Technical solution of the present utility model is such, and by trigger circuit, warning circuit is formed, trigger circuit are made up of latching switch K1, trigger K2, relay J, and be serially connected in the current return, it is anti-theft state that latching switch K1 transfers to key, but the make versus buy part, lock body connects power positive end, locking bolt is succeeded electrical equipment 1 pin, and trigger K2 has copper pipe and weight to constitute, and weight is fixed in the copper pipe, copper pipe connects 2 pin of J, and weight connects power supply negative terminal.Relay 3 pin connect power supply negative terminal, and 4,5 pin normally closed contacts are serially connected in the circuit, and warning circuit is by signal generator IC1, the ic chip 2 and the peripheral cell of amplifier, and loudspeaker Y D forms.Signal generator and amplifier are serially connected in the circuit, signal generator output termination amplifier input terminal, the output termination loudspeaker Y D of amplifier or connect the audio signal output end of televisor.
Below in conjunction with accompanying drawing the utility model is further described:
Accompanying drawing is an electrical schematic diagram of the present utility model
In the accompanying drawing, 1,2 pin of latching switch K1, trigger K2, relay J are coil, and 3 pin are normally opened contacts, and 5 pin are normally closed contacts, signal generator IC1, and amplifier IC2, C1-13 are electric capacity, R1-7 is that resistance, E are power supplys.Loudspeaker Y D, A, 2 audio signal output ends that connect televisor of B.
Principle of work of the present utility model is such, and when the thief moved televisor, copper pipe was run in the swing of the weight of trigger K2, cause electric current to pass through 1,2 pin of relay J, 3 and 5 pin adhesives, signal generator IC1 conducting, alerting signal input amplifier IC2 amplifies back output loudspeaker Y D with signal.In addition, there is the part dividing potential drop to flow through, makes circuit keep conducting from 1,2 pin of relay J, and the alarm continuous alarm.Yet will use key, could stop the circuit disconnection to report to the police, the thief be difficult to destroy like this, has reached antitheft purpose.
The utility model has the advantages that circuit structure is simple, cost is low, and is safe and reliable, good anti-theft effect.
Embodiment of the present utility model is such, element in the accompanying drawing is welded on the printed circuit board, and be fixed in the televisor, bore a hole at housing of TV set, so that insertion key, the loudspeaker of alarm can shared television set speaker, tv audio signal output ground termination B point, positive termination A point.When reporting to the police, 3,4 pin disconnect, and signal can not be added to televisor, in case the interfering TV machine.
Claims (1)
1, a kind of burglar alarm, by trigger circuit, warning circuit is formed, and it is characterized in that:
(1) trigger circuit are made up of latching switch K1, trigger K2, relay J, and are serially connected in the current return, and trigger K2 is made up of copper pipe and weight, and weight is fixed in the copper pipe,
(2) warning circuit is made up of signal generator IC1, amplifier IC2 and peripheral cell, loudspeaker Y D, IC1, IC2 are serially connected in the circuit, the input end of signal generator IC1 output termination amplifier IC2, amplifier out meets loudspeaker Y D or connects the tv audio signal output part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231506 CN2159046Y (en) | 1992-08-21 | 1992-08-21 | Anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231506 CN2159046Y (en) | 1992-08-21 | 1992-08-21 | Anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2159046Y true CN2159046Y (en) | 1994-03-16 |
Family
ID=33774348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92231506 Expired - Fee Related CN2159046Y (en) | 1992-08-21 | 1992-08-21 | Anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2159046Y (en) |
-
1992
- 1992-08-21 CN CN 92231506 patent/CN2159046Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2159046Y (en) | Anti-theft alarm | |
| CN2143797Y (en) | Theft-proof alarm for suitcase | |
| CN2349104Y (en) | Alarm lock for bicycle | |
| CN2244009Y (en) | Multifunctional anti-theft alarm for bicycle | |
| CN2257051Y (en) | Vibration type electronic cipher burglar alarm | |
| CN2203473Y (en) | Theftproof alarm safety device | |
| CN2160957Y (en) | Anti-theft alarm | |
| CN2141389Y (en) | Multi-function box for bicycle theft-proof and alarm | |
| CN2307318Y (en) | Theft-proof alarm device | |
| CN2241344Y (en) | Communication cable theft-proof alarm device | |
| CN2346258Y (en) | Intelligent anti-theft purse | |
| CN2056136U (en) | Multi-azimuth burglar alarm for vehicle | |
| CN2451702Y (en) | Radio remote-control intelligent alarming antiprizing door | |
| CN2305461Y (en) | Alarm anti-theft lock | |
| CN2352637Y (en) | Multifunctional anti-theft box | |
| CN2216024Y (en) | Motorcycle-controlled theft-proof alarm device for motorcycle | |
| CN2290083Y (en) | Miniature multipurpose cipher remote controlled anti-theft alarm | |
| CN2134089Y (en) | Anti-theft and robbing-proof cipher case | |
| CN2238291Y (en) | Theft-proof alarm lock | |
| CN2186934Y (en) | Household intelligent anti-theft alarming device | |
| CN2158373Y (en) | Anti-theft alarm for bicycle | |
| CN2194316Y (en) | Theft-proof alarm electronic lock for bicycle | |
| CN2447538Y (en) | Burglar alarm with cipher for motorcycle | |
| CN2192527Y (en) | Anti-theft siren for bicycle | |
| CN2333041Y (en) | Power line anti-theft alarm |
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 |