CN2132225Y - Anti-severing alarm - Google Patents
Anti-severing alarm Download PDFInfo
- Publication number
- CN2132225Y CN2132225Y CN 92216741 CN92216741U CN2132225Y CN 2132225 Y CN2132225 Y CN 2132225Y CN 92216741 CN92216741 CN 92216741 CN 92216741 U CN92216741 U CN 92216741U CN 2132225 Y CN2132225 Y CN 2132225Y
- Authority
- CN
- China
- Prior art keywords
- film
- sensing cloth
- alarm
- sensing
- cloth
- 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
Disclosed is an anti-severing alarm for preventing stealing caused by a leather bag or a pocket which are cut by a sharp. The utility model is composed of an alarm and sensing fabric, wherein, the sensing fabric can be pasted on a key part in the pocket or on the key part of the leather bag. When the sensing fabric is cut by the sharp, the alarm is triggered to generate alarm sound. The power of a circuit is supplied by a battery, power consumption does not occur in a normal state, and one battery can work for more than two years.
Description
The utility model relates to a kind of burglar alarm, and it is stolen to be particularly useful for preventing that suitcase or pocket from being cut.
At present technique known is to plate the galvanic circle on plastic film, and passes to electric current as sensor, and its shortcoming is: 1. electric current, power consumption are arranged during normality.2. be continuous circuit on the sensor, can not cut out arbitrarily.3. fragile and false alarm.4. manufacturing process complexity.
The purpose of this utility model provides a kind of not power consumption at ordinary times, reliable operation, uses flexibly, makes simple anti-cutting and report to the police and put.
The purpose of this utility model is achieved in that by two-layer conducting film and dielectric film forms sensing cloth, and wherein conducting film is insulated film and isolates mutually insulated.Warning horn be one can trigger switch acoustical generator, working current is zero when static.Sensing is furnished with two extension lines and is connected with warning horn.Two-layer conducting film mutually insulated during normality, the on-off circuit of warning horn also ends, and does not have power consumption in the whole device.When the metal blade was cut sensing cloth, two conductive layers were communicated with by blade, thereby triggered the acoustic-electric road work that takes place.
Wherein dielectric film can be used plastic film, and conducting film can be a metal forming, also can be the metal film that is plated on the plastic film.For increase the reliability conducting film can be two-layer more than.In order to use flexibly, be connected by connector between sensing cloth and the warning horn.Audio-frequency generator can be general audio frequency oscillator, also can be a voice integrated package.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams.1. protection 2.4. aluminium foils, 3. plastic film, 5. non-drying glue layers, 6. audio-frequency generators, 7. connectors among the figure.
Protective seam 1 is general cloth, aluminium foil 2.4 thick 0.01mm～0.2mm, and plastic film 3 thick 0.05～0.5mm, 1～5 bonds mutually becomes sensing cloth, respectively has a lead-in wire to be welded on the twin-core plug on two aluminium foils.Warning horn is made of a unidirectional controllable silicon S CR, K switch, socket 7, audio generating circuit 6, and circuit and battery are loaded in the plastic casing, and reset switch K and socket are fixed on the shell.
Claims (7)
1, a kind ofly be used for thief-proof warning device, be made up of warning horn and sensing cloth, it is characterized in that: sensing cloth is made of several layers of conductive film and insulation film, and conductive film is insulated film and separates, and extension line is arranged.
2, sensing cloth according to claim 1 is characterized by: conductive film is the metal film that is plated on the plastic film.
3, sensing cloth according to claim 1, it is characterized by: conducting film is the double layer of metal paper tinsel, is insulated by plastic film between them.
4, according to claim 1,2,3 described sensing cloth is characterized in that its surface is covered with one deck adhesive sticker.
5, according to claim 1,2,3 described sensing cloth is characterized by: sensing cloth lead-in wire is connected on the socket connector plug.
6, warning horn according to claim 1, it is characterized by on its shell has a reset button and socket.
7, according to claim 1,6 described warning horns, the circuit that it is characterized by it comprises a trigger switch circuit and audio generating circuit, connects between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216741 CN2132225Y (en) | 1992-08-09 | 1992-08-09 | Anti-severing alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216741 CN2132225Y (en) | 1992-08-09 | 1992-08-09 | Anti-severing alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2132225Y true CN2132225Y (en) | 1993-05-05 |
Family
ID=33764810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92216741 Expired - Fee Related CN2132225Y (en) | 1992-08-09 | 1992-08-09 | Anti-severing alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2132225Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797523A (en) * | 2011-09-21 | 2014-05-14 | 米德韦斯瓦科公司 | Security packaging |
-
1992
- 1992-08-09 CN CN 92216741 patent/CN2132225Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797523A (en) * | 2011-09-21 | 2014-05-14 | 米德韦斯瓦科公司 | Security packaging |
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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 |