CN101465031A - Anti-cutting anti-theft alarm - Google Patents
Anti-cutting anti-theft alarm Download PDFInfo
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- CN101465031A CN101465031A CNA2007100324636A CN200710032463A CN101465031A CN 101465031 A CN101465031 A CN 101465031A CN A2007100324636 A CNA2007100324636 A CN A2007100324636A CN 200710032463 A CN200710032463 A CN 200710032463A CN 101465031 A CN101465031 A CN 101465031A
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Abstract
The invention discloses an anti-cutting and anti-theft alarm, which comprises a bag provided with a soft metal mesh, a magnetic button at the opening part of the bag, as well as a contact point A and a contact point B which are arranged on the magnetic button, wherein, a power supply, a power switch, a current-limiting resistor R, the contact point A, the contact point B, a power amplification circuit and a vibrating motor of the anti-theft alarm are electrically connected in sequence; when the power switch is opened and the magnetic button pulls in at the opening part of the bag, the electrical current flows back to a cathode of the power supply through the power switch, the current-limiting resistor, the contact point A and the contact point B; the power amplification circuit cuts off the vibrating motor and does not work due to no proper bias current; when the bag is opened, the contact point A and the contact point B are broken, the electrical current flows to the power amplification circuit through the power switch and the current-limiting resistor, and the power amplification circuit obtains the proper bias current and is conducted, thereby enabling the vibrating motor to be energized for rotary vibrating work. The alarm can be put in pockets of sweater and pants or put in various backpacks and handbags such as a mobile phone bag and the like, and effectively prevent belongings from being stolen, and the structure is simple and practical.
Description
Technical field
The present invention relates to a kind of warning device with anti-cutting, anti-theft feature.
Background technology
The bag or the bag that have anti-theft feature at present generally are to realize the effect of reporting to the police by sounding, and generally are to can't hear chimes of doom at the how noisy environment of people, and can not prevent that the thief from cutting bag or bag, thereby make stolen property.
Summary of the invention
The invention provides a kind of simple and practical warning device with anti-cutting, anti-theft feature, the present invention has adopted following technical scheme for achieving the above object:
A kind of anti-cutting, burglar alarm, comprise power supply, power switch, current-limiting resistance R, power amplification circuit, vibrating motor, contact A, contact B, it is characterized in that: described power switch, current-limiting resistance R, contact A, contact B is connected in series between the anodal negative pole of power supply and forms the loop, the tie point of described current-limiting resistance R and contact A meets the first input end b of power amplification circuit, the second input end e of power amplification circuit connects the tie point of current-limiting resistance R and power switch, this power switch connects positive source, another termination power cathode of output terminal c of a termination power amplification circuit of described vibrating motor and the tie point of contact B.
Described power amplification circuit comprises triode VT1, VT2, described power switch, current-limiting resistance R, contact A, contact B is connected in series between the anodal negative pole of power supply and forms the loop, the tie point of described current-limiting resistance R and contact A connects the base stage of the first input end b triode VT1 of power amplification circuit, the collector of this triode VT1 is connected with the base stage of triode VT2, the emitter of this triode VT1 and the collector of triode VT2 are connected to the output terminal c of power amplification circuit, the emitter of the second input end e triode VT2 of described power amplification circuit is connected with the tie point of power switch with current-limiting resistance R, this power switch connects the positive pole of power supply, one end of described vibrating motor and the emitter of triode VT1, the collector tie point of triode VT2 connects, the negative pole of another termination power and contact B tie point.
The present invention also comprises sack, the peripheral spy of described sack is provided with the soft metal net, the anti-cutting effect has been netted in the soft metal, establish contact A, contact B at the sack opening part, and be connected with the circuit of burglar alarm with lead, contact A, contact B are fixed on the magnetic button, and magnetic button is contained in the opening part of pocket or bag, contact A during described magnetic button adhesive, contact B is closed connects, and contact A, contact B disconnected when magnetic button separated.
Described power amplification circuit comprises triode VT1, VT2, described power switch, current-limiting resistance R, contact A, contact B is connected in series between the anodal negative pole of power supply and forms the loop, described current-limiting resistance R is connected with the base stage of triode VT1 with the tie point of contact A, the collector of this triode VT1 is connected with the base stage of triode VT2, the emitter of this triode VT1 is connected with the collector of triode VT2, the emitter of described triode VT2 connects the tie point of power switch and current-limiting resistance R, this power switch is connected with the positive pole of power supply, one end of described vibrating motor and the emitter of triode VT1, the collector tie point of triode VT2 connects, the tie point of the negative pole of another termination power and contact B.
Described triode VT1 is the NPN triode, and triode VT2 is the PNP triode.
Described vibrating motor is the mobile phone vibrating motor.
The present invention has adopted the foregoing circuit structure, pass through contact A, contact B, current-limiting resistance R, power amplification circuit, the vibrating motor cooperating, under the power-on on off state, when the magnetic button adhesive, contact A, contact B is closed to be connected, electric current is through power switch, current-limiting resistance R, contact A, contact B flows back to power cathode, because triode VT1 base internal resistance value is bigger, base potential is on the low side, electric current can't penetrate the base, so triode VT1, triode VT2 is in cut-off state, and the vibrating motor no current is by not working, when magnetic button separates, contact A, contact B disconnects, electric current is through power switch, current-limiting resistance R is to the base stage of triode VT1, triode VT1, triode VT2 obtains suitable bias current and conducting, is connected the vibrating motor energising whirling vibration work of triode VT1 emitter and triode VT2 collector, just can play the effect of vibration alarming this moment, and the present invention is simple in structure, practical, theftproof performance is good.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 1 is the circuit block diagram of anti-cutting of the present invention, burglar alarm embodiment one
Fig. 2 is the circuit theory diagrams of anti-cutting of the present invention, burglar alarm embodiment one
Fig. 3 is the circuit theory diagrams of anti-cutting of the present invention, burglar alarm embodiment two
Fig. 4 is the structure wiring layout of anti-cutting of the present invention, burglar alarm embodiment two
Embodiment
Embodiment one:
As shown in Figure 1, it is the circuit block diagram of present embodiment one, a kind of anti-cutting, burglar alarm comprises power supply 1, power switch 2, current-limiting resistance R, contact A, B series connection in contact forms the loop, the present invention also comprises power amplification circuit 3, vibrating motor 4, the tie point of described current-limiting resistance R and contact A meets the first input end b of power amplification circuit 3, the second input end e of power amplification circuit 3 connects the tie point of current-limiting resistance R and power switch 2, this power switch 2 connects the positive pole of power supply 1, the output terminal c of one termination power amplification circuit 3 of described vibrating motor 4, the tie point of the negative pole of another termination power 1 and contact B.
As shown in Figure 2, it is the circuit theory diagrams of present embodiment one, described power amplification circuit 3 comprises triode VT1, VT2, described power switch 2, current-limiting resistance R, contact A, contact B is connected in series between the anodal negative pole of power supply 1, the tie point of described current-limiting resistance R and contact A connects the base stage of the first input end b triode VT1 of power amplification circuit 3, the collector of this triode VT1 is connected with the base stage of triode VT2, the emitter of this triode VT1 and the collector of triode VT2 are connected to the output terminal c of power amplification circuit 3, the emitter of the second input end e triode VT2 of described power amplification circuit 3 is connected with the tie point of power switch 2 with current-limiting resistance R, this power switch 2 connects the positive pole of power supply 1, one end of described vibrating motor 4 and the emitter of triode VT1, the collector tie point of triode VT2 connects, the negative pole of another termination power 1 and contact B tie point.
Embodiment two:
As shown in Figure 3, it is the circuit theory diagrams of present embodiment two, described power amplification circuit 3 comprises triode VT1, VT2, described power switch 2, current-limiting resistance R, contact A, contact B is connected in series between the anodal negative pole of power supply 1 and forms the loop, described current-limiting resistance R is connected with the base stage of triode VT1 with the tie point of contact A, the collector of this triode VT1 is connected with the base stage of triode VT2, the emitter of this triode VT1 is connected with the collector of triode VT2, the emitter of described triode VT2 connects the tie point of current-limiting resistance R and power switch 2, this power switch 2 is connected with the positive pole of power supply 1, one end of described vibrating motor 4 and the emitter of triode VT1, the collector tie point of triode VT2 connects, the tie point of the negative pole of another termination power 1 and contact B.
Wherein, power supply 1 is selected miniature button cell for use.
Wherein, triode VT1 selects the NPN triode for use, and VT2 selects the PNP triode for use.
Wherein, vibrating motor 4 is selected the mobile phone vibrating motor for use.
Wherein, current-limiting resistance R selects 50 kilo-ohms～100 kilo-ohms carbon resister for use.
As shown in Figure 4, it is the structure wiring layout of present embodiment two, the present invention also comprises sack 5, and described sack 5 peripheral spies are provided with soft metal net 6, and soft metal net 6 plays the anti-cutting effect, establish contact A, contact B at the opening part of sack 5, and be connected with the circuit of lead with burglar alarm 8, and be fixed on the magnetic button 7, magnetic button 7 is contained in the opening part of pocket or bag, contact A contact B is closed during described magnetic button 7 adhesives connects, magnetic button 7 separately the time contact A contact B disconnect.
The present invention adopts said structure, the power-on switch 2 in use, contact A contact B is closed when magnetic button 7 adhesives connects, electric current is through power switch 2, current-limiting resistance R, contact A, contact B directly flows back to the negative pole of power supply 1, because triode VT1 base internal resistance value is bigger, base potential is lower, electric current can't penetrate the base, so triode VT1, VT2 place cut-off state, vibrating motor 4 no currents are not by working, contact A and contact B disconnect when magnetic button 7 is separated, electric current is through power switch 2, current-limiting resistance R is to the base stage of triode VT1, triode VT1, triode VT2 obtains suitable bias current and conducting, is connected the vibrating motor 4 energising whirling vibration work of triode VT1 emitter and triode VT2 collector, just can play the effect of vibration alarming this moment.
Apparatus of the present invention can be contained in the clothing pocket or be located in all kinds of knapsacks, the handbags such as mobile phone bag, power-on switch 2 during use, when the people opens the opening of pocket or bag, burglar alarm 8 is the energy vibration alarming just, soft metal net 6 can play the function of anti-cutting simultaneously, thereby can effectively prevent stolen property.
The effect that present embodiment is realized is the same with embodiment with effect.Obviously those skilled in the art can carry out various variations and remodeling, therefore, unless such variation and remodeling have departed from scope of the present invention, otherwise all should be included within protection scope of the present invention.
Claims (7)
1, a kind of anti-cutting, burglar alarm, comprise power supply (1), power switch (2), current-limiting resistance (R), power amplification circuit (3), vibrating motor (4), contact (A), contact (B) is electrically connected, it is characterized in that: described power switch (2), current-limiting resistance (R), contact (A), contact (B) is connected in series between the anodal negative pole of power supply (1) and forms the loop, the tie point of described current-limiting resistance (R) and contact (A) connects the first input end (b) of power amplification circuit (3), second input end (e) of power amplification circuit (3) connects the tie point of current-limiting resistance (R) and power switch (2), this power switch (2) connects the positive pole of power supply (1), the negative pole of another termination power of output terminal (c) (1) of a termination power amplification circuit (3) of described vibrating motor (4) and the tie point of contact (B).
2, anti-cutting according to claim 1, burglar alarm, it is characterized in that: power amplification circuit (3) comprises triode (VT1, VT2), described power switch (2), current-limiting resistance (R), contact (A), contact (B) is connected in series between the anodal negative pole of power supply (1) and forms the loop, the tie point of described current-limiting resistance (R) and contact (A) connects the base stage of first input end (b) triode (VT1) of power amplification circuit (3), the collector of this triode (VT1) is connected with the base stage of triode (VT2), the collector of emitter of this triode (VT1) and triode (VT2) is connected to the output terminal (c) of power amplification circuit (3), the emitter of second input end (e) triode (VT2) of described power amplification circuit (3) is connected with the tie point of current-limiting resistance (R) with power switch (2), this power switch (2) connects the positive pole of power supply (1), the emitter of one end of described vibrating motor (4) and triode (VT1), the collector tie point of triode (VT2) connects, negative pole of another termination power (1) and contact (B) tie point.
3, according to the described anti-cutting of claim 1 to 2, burglar alarm, it is characterized in that: also comprise sack (5), the peripheral spy of described sack (5) is provided with soft metal net (6), soft metal net (6) plays the anti-cutting effect, establish contact (A) at the opening part of sack (5), contact (B), and be connected with the circuit of lead with burglar alarm (8), contact (A), contact (B) is fixed on the magnetic button (7), magnetic button (7) is contained in the opening part of pocket or bag, contact (A) during described magnetic button (7) adhesive, contact (B) is closed connects contact (A) when magnetic button (7) separates, contact (B) disconnects.
4, according to the described anti-cutting of claim 2 to 3, burglar alarm, it is characterized in that: described power amplification circuit (3) comprises triode (VT1, VT2), described power switch (2), current-limiting resistance (R), contact (A), contact (B) is connected in series between the anodal negative pole of power supply (1) and forms the loop, described current-limiting resistance (R) is connected with the base stage of triode (VT1) with the tie point of contact (A), the collector of this triode (VT1) is connected with the base stage of triode (VT2), the emitter of this triode (VT1) is connected with the collector of triode (VT2), the emitter of described triode (VT2) connects the tie point of power switch (2) and current-limiting resistance (R), this power switch (2) is connected with the positive pole of power supply (1), the emitter of one end of described vibrating motor (4) and triode (VT1), the collector tie point of triode (VT2) connects, the tie point of the negative pole of another termination power (1) and contact (B).
5, according to each described anti-cutting of claim 2 to 4, burglar alarm, it is characterized in that: described triode (VT1) is the NPN triode, and triode (VT2) is the PNP triode.
6, according to each described anti-cutting of claim 2 to 4, burglar alarm, it is characterized in that: described vibrating motor (4) is the mobile phone vibrating motor.
7, anti-cutting according to claim 3, burglar alarm is characterized in that: the peripheral spy of described sack (5) is provided with soft metal net (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100324636A CN101465031A (en) | 2007-12-18 | 2007-12-18 | Anti-cutting anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100324636A CN101465031A (en) | 2007-12-18 | 2007-12-18 | Anti-cutting anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101465031A true CN101465031A (en) | 2009-06-24 |
Family
ID=40805594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100324636A Pending CN101465031A (en) | 2007-12-18 | 2007-12-18 | Anti-cutting anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101465031A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037195A (en) * | 2016-06-08 | 2016-10-26 | 江阴市天工礼品有限公司 | Anti-theft beaded handbag |
| CN106037196A (en) * | 2016-06-08 | 2016-10-26 | 江阴市天工礼品有限公司 | Improved pearl embroidered handbag |
| CN106165953A (en) * | 2016-05-31 | 2016-11-30 | 江阴市天工礼品有限公司 | A kind of pearl embroidery handbag fastening fastening |
-
2007
- 2007-12-18 CN CNA2007100324636A patent/CN101465031A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106165953A (en) * | 2016-05-31 | 2016-11-30 | 江阴市天工礼品有限公司 | A kind of pearl embroidery handbag fastening fastening |
| CN106037195A (en) * | 2016-06-08 | 2016-10-26 | 江阴市天工礼品有限公司 | Anti-theft beaded handbag |
| CN106037196A (en) * | 2016-06-08 | 2016-10-26 | 江阴市天工礼品有限公司 | Improved pearl embroidered handbag |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090624 |