CN2781471Y - Anti-theft alarm type glass exhibition cabinet - Google Patents
Anti-theft alarm type glass exhibition cabinet Download PDFInfo
- Publication number
- CN2781471Y CN2781471Y CN 200420120498 CN200420120498U CN2781471Y CN 2781471 Y CN2781471 Y CN 2781471Y CN 200420120498 CN200420120498 CN 200420120498 CN 200420120498 U CN200420120498 U CN 200420120498U CN 2781471 Y CN2781471 Y CN 2781471Y
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- CN
- China
- Prior art keywords
- glass
- triode
- connect
- showcase
- control circuit
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- 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 discloses an anti-theft alarming type glass exhibition cabinet, which is composed of a double-layer glass, an exhibition cabinet frame, a cabinet top cover, a spring, a sensitive switch, conducting films, a mike and a control circuit. The visual surface exhibition cabinet has the structure that the double-layer glass is inlaid in the exhibition cabinet frame, wherein edges and the angles of an outer layer glass are clung with reinforced glasses with conducting films. Moreover, the conducting films are connected in series with a wire breaking alarming circuit which is communicated with the sensitive switch and is installed below a top angle of the cabinet top cover. An inner-layer glass is an interlayer glass. A spring supporting device and the mike are arranged between two layers of glasses, wherein the mike is communicated with a sound control alarming circuit. The cabinet top cover is fixed on the frame of the exhibition cabinet by a cover plate. The utility model can realize the purpose that the solid body protection is combined with the electronic alarming protection because of adopting the structure principle of double layer glass and two alarming modes. The utility model can enhance the anti-theft capability of the glass exhibition cabinet. The utility model has the advantages of sensitive and reliable alarming function, reliable and simple device, convenient installation and long service life. Moreover, the design can not influence the beautiful appearance of the glass. The utility model is suitable for exhibition and show of the cultural relics and the valuable articles.
Description
Technical field
The utility model relates to the burglar alarm technical field, specifically relates to a kind of theft-proof alarm type glass showcase.
Background technology
As everyone knows, the showcase of museum's historical relic and valuables are sold showcase, because the needs of vision are all made with clear glass, this just requires the glass showcase should have function antitheft and that report to the police, the entity protection is mostly adopted in the making of glass showcase at present, the glass that is exactly the glass showcase adopts bullet proof glass or adds heavy sheet glass subsides armor film, though glass itself has had high mechanical properties, very strong anti-strike ability is arranged also.But between glass and the glass, joint portion between glass and the cabinet body frame just is easy to be pried open or destroy, it is antitheft weak link, also having occurred tempered glass now cooperates wire break alarm device to make showcase, just applied for the burglar alarm utility model patent that is used for tempered glass by name as the inventor, this patent is exactly the characteristic of that it(?) can the collapse formula when utilizing tempered glass to damage pulverize, connect wire break alarm device after glass is pulverized at stickup conducting film on glass, also make the conducting film fracture, make that current return just is cut off in the warning system control circuit, produce circuit breaker, or, report to the police thereby cause burglar alarm because of short circuit causes that electric current changes in the alarm control circuit.But owing to be subjected to the production technique of conducting film and in the influence of installation site on glass, and the height of the quality of glass, the situation that conducting film do not rupture also might occur and wrong report occur, the distance of the backsight distance of reporting to the police in addition, from finding that stealing feelings also needs certain hour to reaching the spot, the article in the showcase might have been had things stolen at this moment.How to make the glass showcase both have the entity protective capacities, anti-theft alarm function is arranged again, ensure the safety of article in the showcase to greatest extent, also will make the glass showcase cheap for manufacturing cost simultaneously, easy to install then is the problem that the present technique field presses for solution.
Summary of the invention
The purpose of this utility model provides a kind of firm entity protective capacities that both had, and has reliable warning performance again, and theft-proof alarm type glass showcase cheap for manufacturing cost, easy to install.
In order to achieve the above object, the utility model adopts following constructional device: a kind of theft-proof alarm type glass showcase, by tempered glass, laminated glass, the showcase framework, the cabinet top cover, spring, microswitch, conducting film, microphone and broken string and acoustic control alarm control circuit combine, be characterized in: the visible surface of showcase is double glazing, spaced being embedded in the showcase frame, glass outer is a tempered glass, edge at tempered glass is pasted the conductive film that ring-type is not sealed, the top of conductive film is drawn the conduction connecting line respectively and is connected the break alarm control circuit, inner layer glass is a laminated glass, there is compression spring to support at the drift angle place between laminated glass and the tempered glass, gap between laminated glass and tempered glass drift angle also is provided with microphone, microphone connects the voice-control alarm control circuit, in cabinet top cover drift angle place, press a microswitch is installed, microswitch connects the break alarm control circuit, and the cabinet top cover is fixed on the showcase framework by the cover plate on the drift angle.
Being connected to of described break alarm control circuit: as zero line ground connection, another root conductive connecting line of conductive film connects triode V behind the conduction connecting line series connection microswitch of conductive film
1Base stage, and by the series connection resistance R
1Connect positive source, triode V
1Collector connect triode V
2Base stage, and pass through R
2Connect positive source, V
2Emitter connect triode V
3Base stage, triode V
1, V
3Collector be connected positive source with relay J, triode V by diode connected in parallel D
1And V
3Emitter connect zero-power line, thereby form current return with the break alarm control circuit.
Being connected to of described voice-control alarm control circuit: microphone is by connecting line series capacitance C
1The back connects the IC amp.in, and the IC amplifier passes through resistance R
1Connect positive source, and IC amplifier out series capacitance C
2The back is by diode D
1Ground connection, and connect diode D
2, the IC amplifier out is simultaneously also by resistance in series R
FAnd R
2Back ground connection, diode D
2Connect triode V
1Base stage, and by parallel resistor R
4And capacitor C
4Connect power cathode, triode V
1Collector connect triode V
2Base stage, and pass through R
5Connect positive source, V
2Emitter connect triode V
3Base stage, triode V
2, V
3Collector be connected positive source with relay J, triode V by diode connected in parallel D
1And V
3Emitter connect power cathode, thereby form current return with the voice-control alarm control circuit.
Principle of work of the present utility model is as follows: the outer field tempered glass characteristic of showcase is that anti-mechanical force damage capability is strong, when tempered glass is subjected to big mechanical impact force and is enough to stress greater than glass inside, tempered glass also can break, and in a single day glass break, the pulverizing that monoblock tempered glass will break in stress dispensing process, and be that no rib is acerous, be crushed to the edge from the center of glass always, utilize this distinctive physical characteristics of tempered glass, edge at tempered glass is provided with conductive film, can be with the method for vacuum coating or plated film with conductive film attached on the glass surface, also can reach this purpose with various method of attaching, conductive film can be metal film or non-metallic film, the conduction connecting line of an end connects alarm control circuit on the conductive film, one end series connection microswitch ground connection, when tempered glass does not have fragmentation, because the normally closed connection zero line of microswitch ground connection, so triode V
1Bias voltage be zero, triode V
1End, and compound transistor V
2, V
3Pass through resistance R
2Obtained a bias voltage, so conducting makes the relay J adhesive, relay contact J
-1Closure, output alarm signal when tempered glass is subjected to big external force generation fragmentation, is not to be crushed to monolithic glass from stress point, and the conductive film that adheres on glass is ruptured thereupon, makes triode V
1Conducting, and triode V
1Collector potential be zero, compound transistor V like this
2, V
3Bias voltage also be zero, so compound transistor V
2, V
3Become by conducting and to end, relay J discharges, and relay contact J-1 disconnects, output alarm signal, do not have broken as glass, lever up the cabinet top cover or destroy the showcase framework, microswitch is disconnected, also suitable circuit break alarm, the spring that is provided with between the layer glass is that to make that to internal force of tempered glass glass is pulverized more thorough, thereby the reduction rate of false alarm, spring is changed after can opening cover plate, guarantees the elastic force of spring.And the seal cavity between microphone is installed in that layer glass forms, the vibrations of the not broken or audio frequency of glass are not quite reported to the police with regard to not being interfered, in case showcase is subjected to fierce the strike or the glass damage, microphone pickup obtains signal, amplify through the IC amplifier, adjusting RF can control the amplification quantity of IC, voice signal after the amplification is through diode D1, the circuit that D2 constitutes carries out rectification, has just produced DC voltage on resistance R 4, and just triode V1 has had bias voltage, make triode V1 saturated, this moment, the collector voltage of triode V1 was zero, so triode V2, the bias voltage of V3 also is zero ending, and relay discharges, contact J-1 open circuit, output voice-control alarm signal.Two kinds of type of alarms make the warning performance more stable; and the employing of the inner layer glass of this showcase double glazing is laminated glass; the characteristics of laminated glass are to have the big ability of very strong resistance; difficult drop-off also is sticked together after the fragmentation simultaneously; in case when the destroyed generation of outer tempered glass is reported to the police, can play and continue the effect that article are not stolen fast in the protection showcase.
Because the utility model has adopted above-mentioned double glazing to add two kinds of type of alarm structural principles, realized the combination of entity protection and electronic warning protection, improved the anti-theft capability of glass showcase greatly, and sensitive reliable, the device advantages of simple of reporting to the police, do not influence glass good looking appearance, long service life easy for installation yet, can on the exhibition of cultural relics cabinet in museum and market articles of price glass showcase, promote the use of.
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present utility model
Fig. 2 is break alarm circuit theory diagrams of the present utility model
Fig. 3 is voice-control alarm circuit theory diagrams of the present utility model
Embodiment
From Fig. 1-Fig. 3, can find out structure of the present utility model, a kind of theft-proof alarm type glass showcase, by tempered glass, laminated glass, the showcase framework, the cabinet top cover, spring, microswitch, conducting film, microphone and broken string and acoustic control alarm control circuit combine, the visible surface of showcase 2 is double glazing, spaced being embedded in the showcase framework 7, glass outer is a tempered glass 9, edge at tempered glass 9 is pasted the conductive film 10 that ring-type is not sealed, the top of conductive film 10 is drawn the conduction connecting line respectively and is connected the break alarm control circuit, conduction connecting line series connection microswitch 4 backs of conductive film 10 are as zero line ground connection, and another root conductive connecting line of conductive film 10 connects triode V
1Base stage, and by the series connection resistance R
1Connect positive source, triode V
1Collector connect triode V
2Base stage, and pass through R
2Connect positive source, V
2Emitter connect triode V
3Base stage, triode V
2, V
3Collector be connected positive source with relay J, triode V by diode connected in parallel D
1And V
3Emitter connect zero-power line, thereby form current return with the break alarm control circuit, inner layer glass is a laminated glass 8, there is compression spring 3 to support at the drift angle place between laminated glass 8 and the tempered glass 9, gap between laminated glass 8 and tempered glass 9 drift angles also is provided with microphone 1, and microphone 1 is by connecting line series capacitance C
1The back connects the IC amp.in, and the IC amplifier passes through resistance R
1Connect positive source, and IC amplifier out series capacitance C
2The back is by diode D
1Ground connection, and connect diode D
2, the IC amplifier out is simultaneously also by resistance in series R
FAnd R
2Back ground connection, diode D
2Connect triode V
1Base stage, and by parallel resistor R
4And capacitor C
4Connect power cathode, triode V
1Collector connect triode V
2Base stage, and pass through R
5Connect positive source, V
2Emitter connect triode V
3Base stage, triode V
2, V
3Collector be connected positive source with relay J, triode V by diode connected in parallel D
1And V
3Emitter connect power cathode, thereby form current return with the voice-control alarm control circuit.Press in cabinet top cover 6 drift angle places a microswitch is installed, microswitch connects the break alarm control circuit, and cabinet top cover 6 is fixed on the showcase framework 7 by the cover plate on the drift angle 5.
Claims (5)
1. theft-proof alarm type glass showcase, by tempered glass, laminated glass, the showcase framework, the cabinet top cover, spring, microswitch, conducting film, microphone and broken string and acoustic control alarm control circuit combine, it is characterized in that: the visible surface of showcase (2) is double glazing, spaced being embedded in the showcase framework (7), glass outer is tempered glass (9), edge at tempered glass is pasted the conductive film (10) that ring-type is not sealed, the top of conductive film (10) is drawn the conduction connecting line respectively and is connected the break alarm control circuit, inner layer glass is laminated glass (8), there is compression spring (3) to support at the drift angle place between laminated glass (8) and the tempered glass (9), gap between laminated glass (8) and tempered glass (9) drift angle also is provided with microphone (1), microphone (1) connects the voice-control alarm control circuit, in cabinet top cover drift angle place, press a microswitch (4) is installed, microswitch (4) connects the break alarm control circuit, and cabinet top cover (6) is fixed on the showcase framework (7) by the cover plate on the drift angle (5).
2. theft-proof alarm type glass showcase according to claim 1, it is characterized in that: being connected to of described break alarm control circuit, as zero line ground connection, another root conductive connecting line of conductive film connects triode V behind the conduction connecting line series connection microswitch of conductive film
1Base stage, and by the series connection resistance R
1Connect positive source, triode V
1Collector connect triode V
2Base stage, and pass through R
2Connect positive source, V
2Emitter connect triode V
3Base stage, triode V
2, V
3Collector be connected positive source with relay J, triode V by diode connected in parallel D
1And V
3Emitter connect zero-power line, thereby form current return with the break alarm control circuit.
3. theft-proof alarm type glass showcase according to claim 1 is characterized in that: being connected to of described voice-control alarm control circuit, microphone is by connecting line series capacitance C
1The back connects the IC amp.in, and the IC amplifier passes through resistance R
1Connect positive source, and IC amplifier out series capacitance C
2The back is by diode D
1Ground connection, and connect diode D
2, the IC amplifier out is simultaneously also by resistance in series R
FAnd R
2Back ground connection, diode D
2Connect triode V
1Base stage, and by parallel resistor R
4And capacitor C
4Connect power cathode, triode V
1Collector connect triode V
2Base stage, and pass through R
5Connect positive source, V
2Emitter connect triode V
3Base stage, triode V
2, V
3Collector be connected positive source with relay J, triode V by diode connected in parallel D
1And V
3Emitter connect power cathode, thereby form current return with the voice-control alarm control circuit.
4. theft-proof alarm type glass showcase according to claim 1 is characterized in that: described conductive film is that the method by plated film is set directly on the edge of tempered glass.
5. theft-proof alarm type glass showcase according to claim 1 is characterized in that: described conductive film also can be arranged on the edge of tempered glass by the method for pasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120498 CN2781471Y (en) | 2004-12-27 | 2004-12-27 | Anti-theft alarm type glass exhibition cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420120498 CN2781471Y (en) | 2004-12-27 | 2004-12-27 | Anti-theft alarm type glass exhibition cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2781471Y true CN2781471Y (en) | 2006-05-17 |
Family
ID=36762672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420120498 Expired - Fee Related CN2781471Y (en) | 2004-12-27 | 2004-12-27 | Anti-theft alarm type glass exhibition cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2781471Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105146971A (en) * | 2015-09-09 | 2015-12-16 | 郑运婷 | Intelligent antitheft detachable exhibition box |
| CN105193165A (en) * | 2015-09-09 | 2015-12-30 | 郑运婷 | Use method of intelligent, anti-theft and detachable display box |
| CN105266466A (en) * | 2014-06-16 | 2016-01-27 | 灵通展览系统股份有限公司 | Show case glass damage sensing device |
| CN106539388A (en) * | 2015-09-18 | 2017-03-29 | 丹阳市丹力展览用品有限公司 | A kind of glass showcase |
| CN109846283A (en) * | 2019-01-21 | 2019-06-07 | 马鞍山市东方仪表有限公司 | Display case is used in a kind of strong and automobile instrument sale with warning function of protective |
-
2004
- 2004-12-27 CN CN 200420120498 patent/CN2781471Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266466A (en) * | 2014-06-16 | 2016-01-27 | 灵通展览系统股份有限公司 | Show case glass damage sensing device |
| CN105146971A (en) * | 2015-09-09 | 2015-12-16 | 郑运婷 | Intelligent antitheft detachable exhibition box |
| CN105193165A (en) * | 2015-09-09 | 2015-12-30 | 郑运婷 | Use method of intelligent, anti-theft and detachable display box |
| CN105193165B (en) * | 2015-09-09 | 2018-07-10 | 郑运婷 | The application method of the removable exhibition case of intelligent anti-theft |
| CN106539388A (en) * | 2015-09-18 | 2017-03-29 | 丹阳市丹力展览用品有限公司 | A kind of glass showcase |
| CN109846283A (en) * | 2019-01-21 | 2019-06-07 | 马鞍山市东方仪表有限公司 | Display case is used in a kind of strong and automobile instrument sale with warning function of protective |
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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 |