CN202311784U - Scratch-resistant wallet - Google Patents
Scratch-resistant wallet Download PDFInfo
- Publication number
- CN202311784U CN202311784U CN201120463118XU CN201120463118U CN202311784U CN 202311784 U CN202311784 U CN 202311784U CN 201120463118X U CN201120463118X U CN 201120463118XU CN 201120463118 U CN201120463118 U CN 201120463118U CN 202311784 U CN202311784 U CN 202311784U
- Authority
- CN
- China
- Prior art keywords
- wallet
- scratch
- triode
- nand gates
- loudspeaker
- 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 discloses a scratch-resistant wallet which comprises a wallet cover and wallet inner pockets; four metal wires are arranged on the wallet cover; the scratch-resistant wallet further comprises a chip CD 4011, a resistor, a capacitor, diodes, a triode, a loudspeaker and a power supply; one ends of the four metal wires on the wallet cover are all connected with the positive pole of the power supply, and the other ends of the four metal wires serve as input ends of two NAND gates in the chip CD 4011 respectively, and the output ends of the two NAND gates are short-circuited through the diodes D1 and D2; other two NAND gates of the chip CD 4011 are connected into a monostable trigger; short-circuit output signals of the D1 and D2 serve as input signals of the monostable trigger; output signals of the monostable trigger are connected with the base electrode of the triode Q1 through the resistor R4; and the loudspeaker is connected between the emission electrode and the collecting electrode of the triode Q1. The scratch-resistant wallet has the advantage that once a thief scratches the wallet cover when stealing, the loudspeaker can give alarms intermittently.
Description
Technical field
The utility model relates to a kind of wallet, particularly has the wallet of anti-scratch function.
Background technology
Wallet has become requisite article in people's life, yet stolen at present phenomenon takes place again and again.Many thieves obtain unexpected wealth through scratching wallet, and it is bigger to make people lose.
Up to the present, lack an effectively wallet of anti-scratch always.
Summary of the invention
The purpose of the utility model provides a kind of effectively anti-scratch wallet.
The utility model is realized through following measure:
A kind of anti-scratch wallet comprises wallet front cover and wallet inner bag, on said wallet front cover, is provided with 4 in wire.
Said anti-scratch wallet; Also comprise chip CD4011, resistance, electric capacity, diode, triode, loudspeaker, power supply; One end of 4 one metal wires on the said wallet front cover all is connected to the positive pole of power supply; The other end is respectively as the input of 2 NAND gates among the chip CD4011, with the output of said 2 NAND gates respectively through diode D1 and D2 short circuit; In addition 2 NAND gates of CD4011 are connected into the monostable device that sets out, with the short circuit output signal of D1, D2 input signal as said monostable flipflop; The output signal of monostable flipflop is connect the base stage of triode Q1 through resistance R 4, loudspeaker is jumped between the colelctor electrode and emitting stage of triode Q1.
The utility model advantage is: in case the thief scratches the wallet front cover in the process of committing theft, loudspeaker then can send intermittent chimes of doom.
Description of drawings
Fig. 1 is the circuit diagram of a kind of anti-scratch wallet of the utility model.
Fig. 2 is CD4011 chip functions figure.
The specific embodiment
The utility model is further specified through the specific embodiment below in conjunction with accompanying drawing.
A kind of anti-scratch wallet comprises wallet front cover and wallet inner bag, on said wallet front cover, is provided with 4 in wire.
In addition; Said anti-scratch wallet also comprises chip CD4011, resistance, electric capacity, diode, triode, loudspeaker, power supply; One end of 4 one metal wires on the said wallet front cover all is connected to the positive pole of power supply; The other end is respectively as the input of 2 NAND gates among the chip CD4011, i.e. CD4011 No. 1, No. 2 and No. 5, No. 6 pin; No. 3 pin of output of said 2 NAND gates, No. 4 pin are passed through diode D1 and D2 short circuit respectively; In addition 2 NAND gates of CD4011 are connected into the monostable device that sets out; The short circuit output signal of D1, D2 is promptly inserted No. 13 pin of CD4011 as the input signal of said monostable flipflop; With the output signal of monostable flipflop is No. 10 pin of CD4011 meet triode Q1 through resistance R 4 base stage; Loudspeaker is jumped between the colelctor electrode and emitting stage of triode Q1.
In case the thief scratches the wallet front cover in the process of committing theft; Then the wire in the wallet front cover will break off, and the input signal of the CD4011 NAND gate that is attached thereto then will become 0 signal, and its output signal becomes 1 signal; Make monostable flipflop work; Through the output signal amplification back promotion speaker operation of triode, finally make and play the warning effect by the intermittent sounding of loudspeaker monostable flipflop.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replacement or the technical scheme that obtained of equivalent transformation mode, all drop within the protection domain of the utility model.
Claims (2)
1. an anti-scratch wallet comprises wallet front cover and wallet inner bag, it is characterized in that on said wallet front cover, being provided with 4 in wire.
2. according to the said anti-scratch wallet of claim 1; It is characterized in that it also comprises chip CD4011, resistance, electric capacity, diode, triode, loudspeaker, power supply; One end of 4 one metal wires on the said wallet front cover all is connected to the positive pole of power supply; The other end is respectively as the input of 2 NAND gates among the chip CD4011, with the output of said 2 NAND gates respectively through diode D1 and D2 short circuit; In addition 2 NAND gates of CD4011 are connected into the monostable device that sets out, with the short circuit output signal of D1, D2 input signal as said monostable flipflop; The output signal of monostable flipflop is connect the base stage of triode Q1 through resistance R 4, loudspeaker is jumped between the colelctor electrode and emitting stage of triode Q1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120463118XU CN202311784U (en) | 2011-11-21 | 2011-11-21 | Scratch-resistant wallet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120463118XU CN202311784U (en) | 2011-11-21 | 2011-11-21 | Scratch-resistant wallet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202311784U true CN202311784U (en) | 2012-07-11 |
Family
ID=46423798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120463118XU Expired - Fee Related CN202311784U (en) | 2011-11-21 | 2011-11-21 | Scratch-resistant wallet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202311784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362728A (en) * | 2011-11-21 | 2012-02-29 | 南京化工职业技术学院 | Scratch-resistant wallet |
-
2011
- 2011-11-21 CN CN201120463118XU patent/CN202311784U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362728A (en) * | 2011-11-21 | 2012-02-29 | 南京化工职业技术学院 | Scratch-resistant wallet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131121 |