CN2271837Y - Theft-proof suitcase with alarm - Google Patents
Theft-proof suitcase with alarm Download PDFInfo
- Publication number
- CN2271837Y CN2271837Y CN 96240799 CN96240799U CN2271837Y CN 2271837 Y CN2271837 Y CN 2271837Y CN 96240799 CN96240799 CN 96240799 CN 96240799 U CN96240799 U CN 96240799U CN 2271837 Y CN2271837 Y CN 2271837Y
- Authority
- CN
- China
- Prior art keywords
- suitcase
- metal
- sensing element
- circuit device
- triode
- 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 relates to a portable suitcase with a device which can prevent stealing or loss, particularly a theft-proof suitcase with an alarm. A touching switch circuit device which is composed of a resistor and a compound switch tube which is composed of a metal sensing element, two bases, and an emitter which is connected with a triode is arranged in the suitcase which is provided with a sound alarm and a high voltage generating circuit device. The metal sensing element can be metal strips which are arranged on the edge angles on the four sides of a suitcase body, and can be a metal carrying handle, a hinge, a lockset, etc. The utility model can automatically stop working, with the advantages of simple structure, convenient operation, sensitive triggering, high safety, and strong protective ability.
Description
The utility model relates to a kind of having and prevents or lose the portable case and bag of device that it is a kind of anti-theft warning suitcase for a light stolen.
Existing common suitcase is not have the anti-theft warning function, and the password suitcase can only prevent that also other people from opening the case lid wherein article of taking at short notice.How to avoid and prevent suitcase to be intercepted or steal, become current social urgent problem by other people.Chinese patent CN2936767U discloses a kind of " alarming electric shock anti-theft suitcase ", its primary structure is to be provided with anchor switch, mercoid switch, self-locking time-delay power-supply controller and alarm generator, micro-batch (-type) pulsed high-voltage generator in casing, and on subcutaneous and the handle electrical network and electrode is set casing outside.It can make rocking of casing or displacement trigger self-locking time-delay power-supply controller by mercoid switch, by it and then make alarm generator and the work of micro-batch (-type) pulsed high-voltage generator, promptly send chimes of doom and on electrical network and electrode, produce high-tension electricity, play the burglar alarm effect thus.This anti-theft suitcase must just can enter duty after the anchor switch closure, in case disconnect or destroy this anchor switch then the equal cisco unity malfunction of each relevant apparatus promptly can not serve as warning.In addition, when each relevant apparatus just can not quit work after triggering automatically, must be by artificially manually closing corresponding switch.Both wasted electric energy, operation also bothers.Therefore, this suitcase is safety inadequately still, and result of use can not be satisfactory.
The purpose of this utility model just is to overcome above-mentioned the deficiencies in the prior art part, provide a kind of simple in structure, operation is convenient, triggers sensitive and can quit work automatically, can in time trigger the anti-theft warning suitcase safe, that protective capacities is strong again.
The purpose of this utility model can reach by implementing following technical proposal: in the portable casing that audible alarm circuit device and high-pressure generating circuit device are housed, and the touch switch circuit device that combination switch pipe and the resistance that the triode that setting is connected with two base stage one emitter-base bandgap gradings by the metal sensing element is formed is constituted.The metal sensing element is placed in the easy contact site of tank surface human body, be connected with the base stage of first triode by resistance by lead, resistance output amplifying signal by emitter stage connected on second triode transmits and triggers the audible alarm circuit device and the high-pressure generating circuit device of its rear end.Described metal sensing element can be arranged on the bonding jumper on the corner angle of portable casing four sides; Can also be metal lifting handle, metal hinge and the metal lockset on this suitcase, so that increase sensitivity and security that induction triggers.
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Accompanying drawing 2 is the electrical connection graph of the touch switch circuit device of utility model.
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.In common portable casing 1, be provided with conventional audible alarm circuit device 2 and high-pressure generating circuit device 3, its front end by one when conventional base delay circuit device 4 be connected with touch switch circuit device 5.Described touch switch circuit device 5 comprises metal sensing element 6, by inductive reactance R
1The triode BG that is connected to its rear end and links to each other by two base stage one emitter-base bandgap gradings
1, BG
2The combination switch pipe that constitutes is connected second triode BG
2Output resistance R on the emitter stage
2And with battery E and the electrolytic capacitor C that connects.Metal sensing element 6 is respectively bonding jumper 7, metal lifting handle 8, metal hinge 9 and the metal lockset 10 that is arranged on the portable casing 1 four sides corner angle, and they are all by lead and inductive reactance R
1Be connected to first triode BG
1Base stage on.Battery E and and the electrolytic capacitor C that connects be connected to triode BG
1, BG
2Colelctor electrode and output resistance R
2Low side.Constitute band source touch switch circuit device 5 thus.When human body a part touched above-mentioned any one metal sensing element 6, the induced voltage of human body just passed through resistance R
1Be added to triode BG
1Base stage on, make by BG
1, BG
2The combination switch of forming is guaranteed adequate food and conducting, at BG
2The output resistance R of emitter stage
2The last voltage signal that produces through amplifying, and then trigger coupled time basic delay circuit device 4, after delaying time, trigger audible alarm circuit device 2 and 3 actions of high-pressure generating circuit device, play the anti-theft warning effect.When human body broke away from above-mentioned metal sensing element 6, the induced voltage of human body disappeared, BG
1, BG
2End output resistance R
2Last no-voltage signal output, audible alarm circuit device 2 and high-pressure generating circuit device 3 just quit work or locate off working state.
The utility model has simple in structurely compared with prior art, and operation is convenient, trigger sensitive and can from Moving quit work and can in time trigger. The characteristics such as safe, protective capacities is strong, be suitable as need safety, Antitheft official document suitcase or the suitcase of valuables etc.
Claims (3)
1, a kind of anti-theft warning suitcase comprises casing, acoustic warning device, high-voltage generator and trigger switch, it is characterized in that trigger switch is by metal sensing element (6), two base stage one emitter stages triode (BG that is connected
1), (BG
2) the combination switch pipe and the inductive reactance (R that form
1), output resistance (R
2) the touch switch circuit device (5) that constituted, wherein metal sensing element (6) is located at the easy contact site of the surperficial human body of casing (1), and by lead and inductive reactance (R
1) be connected first triode (BG
1) base stage, output resistance (R
2) be connected to second triode (BG
2) emitter stage on.
2, anti-theft warning suitcase according to claim 1 is characterized in that described metal sensing element (6) is provided in a side of the bonding jumper (7) on the corner angle of portable casing (1) four sides.
3, anti-theft warning suitcase according to claim 1 and 2 is characterized in that metal sensing element (6) can also be metal lifting handle (8), metal hinge (9) and metal lockset (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96240799 CN2271837Y (en) | 1996-09-26 | 1996-09-26 | Theft-proof suitcase with alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96240799 CN2271837Y (en) | 1996-09-26 | 1996-09-26 | Theft-proof suitcase with alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2271837Y true CN2271837Y (en) | 1998-01-07 |
Family
ID=33915362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96240799 Expired - Fee Related CN2271837Y (en) | 1996-09-26 | 1996-09-26 | Theft-proof suitcase with alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2271837Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273797A (en) * | 2011-05-23 | 2011-12-14 | 杨廷喜 | Antitheft reminder for handbags |
| CN102396869A (en) * | 2011-03-23 | 2012-04-04 | 东北林业大学 | Burglar-proof silica gel sleeve for mobile phone |
-
1996
- 1996-09-26 CN CN 96240799 patent/CN2271837Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102396869A (en) * | 2011-03-23 | 2012-04-04 | 东北林业大学 | Burglar-proof silica gel sleeve for mobile phone |
| CN102273797A (en) * | 2011-05-23 | 2011-12-14 | 杨廷喜 | Antitheft reminder for handbags |
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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 |