CN204002095U - Induction type two-stage is amplified burglary-resisting installation - Google Patents
Induction type two-stage is amplified burglary-resisting installation Download PDFInfo
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- CN204002095U CN204002095U CN201420299821.5U CN201420299821U CN204002095U CN 204002095 U CN204002095 U CN 204002095U CN 201420299821 U CN201420299821 U CN 201420299821U CN 204002095 U CN204002095 U CN 204002095U
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- lockhole
- cover plate
- triode
- amplifying circuit
- circuit
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Abstract
Induction type two-stage is amplified burglary-resisting installation, belong to electronic technology field, by lockhole cover plate, lockhole switch, induced signal amplifying circuit, warning circuit forms jointly, lockhole cover plate is covered lockhole together with lockhole switch, lockhole cover plate lead-out wire has connected induced signal amplifying circuit, crack lockhole and must first take off lockhole cover plate, hand rigidly connects tactile lockhole cover plate and just produces touch signal, after induced signal amplifying circuit amplifies, the reliable warning circuit that starts sends warning, fail to prevent, continue to crack lockhole, lockhole cover plate souththern pine is moving, lockhole switch contact will change and send formal warning startup, induced signal amplifying circuit multiplication factor is strong, reliable trigger, faint touch signal can be enlarged into the reliable signal of telecommunication, warning circuit can reliably be started, promoted security personnel's ability of anti-theft safety door.
Description
Technical field
Belong to electronic technology field.
Background technology
Anti-theft safety door is basic security personnel's equipment, door is the main position that isolated stranger enters house, enter house, first turn the key in the lock, this is tradition over the past thousands of years, in order to strengthen the security performance of anti-theft safety door, anti-theft safety door several times develops, product is varied, and just produce at the beginning of suspect's crime, warn in advance, this function is used in tool on anti-theft safety door and is of great significance, yet how to produce pre-warning, this is again a problem, having the warning of being exactly is a very serious thing again, so what must guarantee to report to the police and start is reliable and sensitive, the stable performance of guarantee product, can not produce wrong report again.Therefore, that report to the police and start with which type of circuit guarantee is sensitive and reliable, and this is a very crucial emphasis.
Summary of the invention
Main purpose of the present invention is again to propose new technical measures, further protects lockhole, just produces pre-warning when hand is taken off lockhole cap; to commit a crime and prevent before occurring; as further crime, more can produce formal warning, antitheft series products is obtained further perfect.
The technical solution used in the present invention is:
1, induction type two-stage amplification burglary-resisting installation consists of jointly lockhole cover plate, lockhole switch, induced signal amplifying circuit, warning circuit.
Wherein: lockhole cover plate is that a sheet metal is made, and lockhole switch is covered together with lockhole, and lockhole cover plate is drawn with a wire, connect induced signal amplifying circuit.
Lockhole switch is placed under lockhole cover plate, on lockhole, when lockhole cover plate covers lower time, oppress the button of lock-switch, draw with wire the contact of lockhole switch, the constant open contact lead-out wire of lockhole switch and the power supply of induced signal amplifying circuit join, and the normal pin contact lead-out wire of lockhole switch is connected in warning circuit.
Induced signal amplifying circuit is comprised of preposition amplifying triode, amplifying circuit, control triode, driving relay.
The lead-out wire of lockhole cover plate connects the base stage of preposition amplifying triode in induced signal amplifying circuit, the colelctor electrode of preposition amplifying triode connects power supply, emitter stage connects the positive terminal of first order integrated amplifier in amplifying circuit, sensitivity adjustment resistance one termination first order integrated amplifier positive terminal, the other end ground connection of sensitivity adjustment resistance, the negative phase end of first order integrated amplifier is received the positive terminal of second level integrated amplifier after being connected with the output of first order amplifying circuit; After two divider resistance series connection, one termination power, other end ground connection, the series connection point of two divider resistances connects the negative phase end of second level integrated amplifier, and the output of second level integrated amplifier connects the base stage that controls triode, controls the grounded emitter of triode, colelctor electrode connects the line bud lower end that drives relay, termination power on line bud, drives the constant open contact of relay to connect power supply, and normal pin contact connects warning circuit as the output of induced signal amplifying circuit.
Warning circuit: lockhole switch lead-out wire and the output of induced signal amplifying circuit connect respectively the positive pole of an isolating diode, after the negative pole of isolating diode links together as the power supply of warning circuit, the output of voice sheet has connected the base stage of amplifier tube, the grounded emitter of amplifier tube, colelctor electrode is connected in the base stage of PNP triode, the base stage of PNP triode has also connect one end of load resistance, the load resistance other end connects the base stage of NPN triode, the commissure electric capacity of central point series winding that PNP triode is connected with NPN transistor emitter, one end of another termination loudspeaker of commissure electric capacity, the other end grounding wire of loudspeaker.
2, controlling triode is large power triode.
3, amplifying circuit is comprised of integrated circuit.
For having a clear understanding of the meaning of the technical program, first will make the following instructions:
According to the existing achievement technology of inventor, be that normal door no longer needs mechanical key, but open the door with electronics telecontrol engineering, thereby lockhole can be covered, but also retained the mode that mechanical key opens the door simultaneously, if electronic telecontrol is opened the door, while there is problem, can also open the door, rather than not enter door.If stranger wants to enter house by cracking lockhole, hand rigidly connects tactile lockhole cover plate will produce warning, and the situation that oneself goes wrong and open the door with mechanical key because of electronic telecontrol, although also can produce warning, because one of own side is on the scene, so can not feel alarmed.Therefore also can differentiate the owner's that opens the door normal door or perpetrator's preparation cracks lockhole and enters room.
For this reason, the existing meaning to each technical measures of the present invention, concrete condition is further explained as follows:
One, the explanation of induced signal amplifying circuit:
By preposition amplifying triode (2 in Fig. 1), amplifying circuit, control triode (12 in Fig. 1), driving relay (13 in Fig. 1), formed.Wherein amplifying circuit is integrated circuit, first order integrated amplifier (3 in Fig. 1) and second level integrated amplifier (6 in Fig. 1), consists of.
1, multiplication factor is strong, reliable trigger.Preposition amplifying triode is the same with control triode, it is all large power triode, different is that preposition amplifying triode is to have adopted the form of penetrating with output, there is very strong feedback character, current base stage of putting amplifying triode has faint signal, it is the touch signal producing after hand contact lockhole cover plate, the output signal of preposition amplifying triode passes to integrated circuit, with integrated circuit, make amplifying circuit, multiplication factor than discrete component is much bigger, therefore after hand contact lockhole cover plate, its signal is through the amplification of integrated circuit, trigger and control triode, start and drive relay, drive relay adhesive, drive relay adhesive contact change and start warning circuit, and then generation warning.
2, the pre-warning of generation is sensitive reliable.The fine adjustment of sensitivity of integrated circuit, sensitivity adjustment resistance (01 in Fig. 1) resistance is large, its sensitivity step-down, resistance is little, sensitivity raises, and has very strong adjustable, compares with the amplifying circuit of discrete component, circuit is simpler, adjusts more conveniently, and performance is stronger.
3, drive the application of relay (13 in Fig. 1), strengthened the reliability of triggering late-class circuit (being warning circuit) here, it can be large electric current by little current conversion, triggers late-class circuit more reliable and more stable.
4, further protection is: in pre-warning, fail the criminal who prevents; if think that further cracking lockhole enters room; just opened lockhole cover plate; be subject to the lockhole switch of lockhole cover plate compressing to make shift knob that displacement occur because of becoming flexible of lockhole cover plate; start warning system, thereby sent formal warning enabling signal.
Two, being arranged on the lockhole switch on lockhole under lockhole cover plate is a key in the present invention, exactly because there has been lockhole switch, just makes warning of the present invention accomplish more scientific, is also the place different from a lot of alarms, and its reason is:
1, can not produce wrong report.When house owner people stays out, what now produce opens the door, and is not normal door, if now crack lockhole, opening the door, must be crime behavior, and warning is now very crucial, and work as owner oneself, with key, by lockhole, open the door, because own on the scene, therefore can not make us terrified.
2, be very reliable, normal life custom impact not on people, in opening the door normally and closing the door, lockhole switch can not move, thereby lockhole switch can not damage, and open the door to close the door, do not need artificial additional move yet, do not affect the normal habits and customs of people, thereby do not affect the each normal work starting of security system.
3, be that lockhole switch is sensitive reliable, when crime behavior is not accomplished, just do not report to the police, thereby loss is reduced to minimum.Because when lockhole cover plate is loosening, lockhole switch contact will change and send warning enabling signal.
Three, the explanation of warning circuit: amplifier tube (302 in Fig. 3) is a triode, by a PNP triode (304 in Fig. 3) and NPN triode (305 in Fig. 3), formed complementary circuit audio frequency has been carried out to power amplifier, when having pre-alarm signal or lockhole switch to have warning enabling signal, open the power supply of warning circuit, so there are voice to produce, due to this electric circuit constitute is an OTL circuit, rather than OCL circuit, so debugging is simple, and there is element not perishable, the advantage higher with efficiency, voice sheet (301 in Fig. 3) can be recorded some language in advance, as " please in this stop " or " asking speed to be left " etc.
After the invention process, promoted the security performance of anti-theft safety door, outstanding advantage is as follows:
1, promoted all sidedly security personnel's performance of anti-theft safety door, stranger can have been kept outside of the door at ordinary times, when someone commits a crime, can give warning in advance, can formally produce warning again, the situation of the passive defence of anti-theft safety door in the past that is through with completely.
2, warning function is outstanding reliable, and highly sensitive, the multiplication factor of induced signal amplifying circuit is strong, reliable trigger.When there being people to attempt to destroy lockhole crime, rigidly connect and touch lockhole cover plate, early warning type system starts immediately, strengthens perpetrator's psychological pressure,
3, warning startup is sensitive reliable, shows:
(1), warning system can not reported by mistake.Because after coordinating with existing achievement, there is automatic recognition property.What when owner is absent from the scene, produce opens the door, and may be only crime behavior.Otherwise the behavior of not committing a crime, lockhole switch can not send signal, and this is the intrinsic property due to lockhole switch, and the variation of contact occurs to occur when lockhole shift knob is being subject to compressing and is not suffering oppression.When without crime behavior, the button of lockhole switch is subject to the compressing of lockhole cover plate, thereby lockhole switch contact can not change, and when having crime behavior, lockhole cover plate souththern pine is moving, the button of lockhole switch is no longer subject to the compressing of lockhole cover plate, thereby variation has occurred in the contact of lockhole switch, thereby start, reports to the police.
(2), easy to use, dependable performance, lockhole switch does not affect normal habits and customs after installing completely, when without event, lockhole switch is standby, initiative alarming when event occurs.
(3), protection is tight, do not affect normal habits and customs, laid special stress on protecting lockhole.
Accompanying drawing explanation
Fig. 1 is induced signal amplification circuit diagram.
In figure: 1, lockhole cover plate lead-out wire; 01, sensitivity adjustment resistance; 2, preposition amplifying triode; 3, first order integrated amplifier; 4, first order integrated amplifier positive terminal; 5, the negative phase end of first order integrated amplifier; 6, second level integrated amplifier; 7, second level integrated amplifier positive terminal; 8, second level integrated amplifier negative phase end; 9, second level integrated amplifier output; 10, divider resistance; 12, control triode; 13, drive relay; 15, induced signal amplifying circuit output.
Fig. 2 is the installation drawing of lockhole cover plate and lockhole switch.
In figure: 1, lockhole cover plate lead-out wire; 25, lockhole cover plate; 26, the fixing screw of lockhole cover plate and anti-theft safety door; 27, the printed panel of welding lockhole switch; 28, the screw of fixing welding lockhole switch printed panel; 29, lockhole switch; 30, the normal pin of lockhole switch contact lead-out wire; 31, lockhole switch constant open contact lead-out wire; 32, lockhole; 33, anti-theft safety door.
Fig. 3 is warning circuit figure.
In figure: 15, induced signal amplifying circuit output; 30, the normal pin of lockhole switch contact lead-out wire; 289, the normal pin of lockhole switch contact lead-out wire connects the isolating diode of warning circuit; 299, induced signal amplifying circuit connects the isolating diode of warning circuit; 301, voice sheet; 302, amplifier tube; 303, load resistance; 304, PNP triode; 305, NPN triode; 306, commissure electric capacity; 308, loudspeaker.
Fig. 4 is that each several part is related to block diagram.
In figure: 25, lockhole cover plate; 1, lockhole cover plate lead-out wire; 29, lockhole switch; 30, the normal pin of lockhole switch contact lead-out wire; 31, lockhole switch constant open contact lead-out wire; 50, induced signal amplifying circuit; 51, warning circuit.
The specific embodiment
Fig. 1 to Fig. 4 has described specific embodiment of the invention example.
One, according to Fig. 2 embodiment, lockhole cover plate and lockhole switch are installed.
1, with a hard material, be processed into and strike out the lockhole cover plate larger than lockhole.
2, the periphery at lockhole cover plate spiles, and the place punching that lockhole cover plate is installed at shop front lockhole is corresponding with it, the installing hole tapping of the shop front.
4, between lockhole cover plate and door, add hollow cushion ring, allow hollow place expose lockhole.
5, lockhole cover plate is fixed in the shop front.Fixedly time, should notice between lockhole cover plate and door fixedly time that pad last layer insulant is as plastic washer.
6, with one end of a wire, connect lockhole cover plate, the other end is connected to the base stage of preposition amplifying triode in induced signal amplifying circuit.
7, lockhole switch is welded on a bar printing plate, the printed panel that has welded switch is fixed on door lock hole.
8, the normal pin contact of lockhole switch is connected together with the power supply that wire is drawn rear connection and induced signal amplifying circuit, and constant open contact is drawn after isolating diode of rear connection the power supply as warning circuit with wire.
9, lockhole cover plate is oppressed lockhole shift knob after fixing.
Two, installation and debugging induced signal amplifying circuit.
1, selectors: triode is selected large power triode.
2, according to Fig. 1 welding, drive the constant open contact of relay to connect power supply, normal pin contact connects after an isolation power supply as warning circuit.
3, debugging.
Test and the adjustment preposition unit of bridge type: the emitter stage of surveying preposition amplifying triode with the voltage gear of universal meter, or the colelctor electrode of observing and controlling triode processed, when hand does not contact lockhole cover plate, the transmitting of preposition amplifying triode is low level very, and control transistor collector, is high-order, and when hand contact lockhole cover plate, the transmitting of preposition amplifying triode is very high-order, controlling transistor collector is low level, if not bery sensitive, should adjust sensitivity adjustment resistance.
Three, the enforcement of warning circuit: by shown in Fig. 3, weld audio amplification circuit, after induced signal amplifying circuit output is connected respectively an isolating diode with the normal pin of lockhole switch contact lead-out wire as the power supply of warning circuit.
Four, each several part relation as shown in Figure 4.
Claims (3)
1. induction type two-stage is amplified burglary-resisting installation, it is characterized in that: lockhole cover plate, lockhole switch, induced signal amplifying circuit, warning circuit, jointly consist of;
Wherein: lockhole cover plate is that a sheet metal is made, and lockhole switch is covered together with lockhole, and lockhole cover plate is drawn with a wire, connect induced signal amplifying circuit;
Lockhole switch is placed under lockhole cover plate, on lockhole, when lockhole cover plate covers lower time, oppress the button of lock-switch, draw with wire the contact of lockhole switch, the constant open contact lead-out wire of lockhole switch and the power supply of induced signal amplifying circuit join, and the normal pin contact lead-out wire of lockhole switch is connected in warning circuit;
Induced signal amplifying circuit is comprised of preposition amplifying triode, amplifying circuit, control triode, driving relay;
The lead-out wire of lockhole cover plate connects the base stage of preposition amplifying triode in induced signal amplifying circuit, the colelctor electrode of preposition amplifying triode connects power supply, emitter stage connects the positive terminal of first order integrated amplifier in amplifying circuit, sensitivity adjustment resistance one termination first order integrated amplifier positive terminal, the other end ground connection of sensitivity adjustment resistance, the negative phase end of first order integrated amplifier is received the positive terminal of second level integrated amplifier after being connected with the output of first order amplifying circuit; After two divider resistance series connection, one termination power, other end ground connection, the series connection point of two divider resistances connects the negative phase end of second level integrated amplifier, and the output of second level integrated amplifier connects the base stage that controls triode, controls the grounded emitter of triode, colelctor electrode connects the line bud lower end that drives relay, termination power on line bud, drives the constant open contact of relay to connect power supply, and normal pin contact connects warning circuit as the output of induced signal amplifying circuit;
Warning circuit: lockhole switch lead-out wire and the output of induced signal amplifying circuit connect respectively the positive pole of an isolating diode, after the negative pole of isolating diode links together as the power supply of warning circuit, the output of voice sheet has connected the base stage of amplifier tube, the grounded emitter of amplifier tube, colelctor electrode is connected in the base stage of PNP triode, the base stage of PNP triode has also connect one end of load resistance, the load resistance other end connects the base stage of NPN triode, the commissure electric capacity of central point series winding that PNP triode is connected with NPN transistor emitter, one end of another termination loudspeaker of commissure electric capacity, the other end grounding wire of loudspeaker.
2. induction type two-stage according to claim 1 is amplified burglary-resisting installation, it is characterized in that: controlling triode is large power triode.
3. induction type two-stage according to claim 1 is amplified burglary-resisting installation, it is characterized in that: amplifying circuit is comprised of integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299821.5U CN204002095U (en) | 2014-06-08 | 2014-06-08 | Induction type two-stage is amplified burglary-resisting installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299821.5U CN204002095U (en) | 2014-06-08 | 2014-06-08 | Induction type two-stage is amplified burglary-resisting installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002095U true CN204002095U (en) | 2014-12-10 |
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ID=52042118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420299821.5U Expired - Fee Related CN204002095U (en) | 2014-06-08 | 2014-06-08 | Induction type two-stage is amplified burglary-resisting installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204002095U (en) |
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2014
- 2014-06-08 CN CN201420299821.5U patent/CN204002095U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |