CN203966259U - A kind of bridge type is shot with video-corder monitor - Google Patents
A kind of bridge type is shot with video-corder monitor Download PDFInfo
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- CN203966259U CN203966259U CN201420387075.5U CN201420387075U CN203966259U CN 203966259 U CN203966259 U CN 203966259U CN 201420387075 U CN201420387075 U CN 201420387075U CN 203966259 U CN203966259 U CN 203966259U
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Abstract
A kind of bridge type is shot with video-corder monitor, belong to electronic technology field, cover sheet by lockhole, lockhole switch, warning circuit, bridge type is shot with video-corder circuit and is jointly formed, allow video recorder be applicable to general family, allow alarm energy pre-cooling simultaneously, lockhole coverage sheet is arranged on door and above lockhole is covered together with lockhole switch, the touch signal producing in the time that hand contact lockhole is covered sheet is shot with video-corder through bridge type after circuit amplifies and is sent warning, bridge type is shot with video-corder and in circuit, has been comprised photorecorder, therefore in warning, warn and also have photorecorder except scene, cover sheet if further crack lockhole, in the time that lockhole coverage sheet is loosening, lockhole switch starts photorecorder and warning circuit immediately, further protect lockhole, improve security personnel's performance of anti-theft safety door.
Description
Technical field
Belong to electronic technology field.
Background technology
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, different keys is driven different locks, open different doors, just can become the important equipment that ensures household safe, in order more to deepen the security of door, so occurred that numerous alarms coordinates with it, video recorder has also frequently been used in the ground such as megastore simultaneously, but a lot of media introductions, theft still remains incessant after repeated prohibition, same key can be driven two to three locks unexpectedly, that is to say and can open two to three sects, enter two to three families other, if nobody home, the consequence producing is that we are reluctant to see, and the alarm being equipped with is all to have had crime behavior just to produce afterwards to report to the police, cannot at the beginning of crime, just send warning by its prevention, this is likely just to have opened door with key, and warning now cannot stop the generation of consequence, therefore, the form that alarm coordinates with anti-theft safety door still cannot ensure the safety of family.
Video recorder is extremely necessary market, because the stream of people is various and complicated in market, but video recorder is inapplicable for general family, general family is numerous and diverse not as market, as allow video recorder shoot with video-corder for a long time, not only waste resource but also be not suitable for checking afterwards, thereby which type of technology could allow video recorder be applicable to general family by, this becomes again a difficult problem.
Summary of the invention
Fundamental purpose of the present invention is again to propose new technical measures, allow video recorder be applicable to general family, allow alarm energy pre-cooling simultaneously, be when hand is taken off lockhole cap, send immediately pre-warning and prevent, antitheft series products is obtained further perfect.
The technical solution used in the present invention is:
1, a kind of bridge type is shot with video-corder monitor and is covered sheet, lockhole switch, warning circuit, bridge type by lockhole and shoot with video-corder circuit and jointly form.
Wherein: lockhole switch is placed in lockhole and covers under sheet, on lockhole, when lockhole is covered sheet lid lower time, oppress the contact of lock-switch, the normal pin of lockhole switch contact is drawn and is connected to bridge type and shoots with video-corder in circuit and to start or an input end of door with wire, and lockhole switch normally opened contact extension line connects bridge type and shoots with video-corder the rectification output in circuit.
Warning circuit is made up of voice sheet, preposition amplifier tube, power-amplifier stage, acoustical generator.
Power-amplifier stage is made up of NPN triode and NPN triode, the output of voice sheet connects the base stage of preposition amplifier tube, the grounded emitter of preposition amplifier tube, the base stage of the collector of preposition amplifier tube and PNP triode is connected together, the grounded collector of PNP triode, the emitter of PNP triode connects two-way, one tunnel is the one end that connects loudspeaker after serial connection coupling capacitor, loudspeaker other end ground connection, another road connects the emitter of NPN triode, between the base stage of the base stage of NPN triode and PNP triode, connect a resistance, the output that starts OR circuit connects the collector of NPN triode.
Bridge type shoot with video-corder unit by transformer unit, the preposition unit of bridge type, integrated amplifier, shoot with video-corder circuit and jointly form.
Transformer unit has connected the preposition unit of bridge type, and the preposition unit of bridge type connects integrated amplifier, integrated amplifier connection sound warning circuit.
After lockhole coverage sheet extension line connection bridge type commissure electric capacity, connect the positive pole of bridge rectifier.
Transformer unit is the positive pole that the two ends of transformer secondary output connect respectively two commutation diodes, the central shaft heads ground connection of transformer secondary output, after linking together, the negative pole of two commutation diodes connects two-way, it is the live wire end of integrated circuit first order amplifier that the first via connects working power, the second tunnel has connected the positive pole of rectifying and wave-filtering electric capacity, the minus earth of this electric capacity.
The preposition unit of bridge type: formed by four diodes and four electric capacity; Be connected into Article 1 branch road with two diodes, another two diodes are connected into Article 2 branch road, article two, the positive pole of branch road links together becomes the positive pole of bridge rectifier, article two, the negative pole of branch road links together becomes the negative pole of bridge rectifier, article two, branch road forms bridge rectifier circuit, Article 1, in branch road, the series connection intermediate contact of two diodes becomes the output terminal of the preposition unit of bridge-type, the series connection intermediate contact ground connection of two diodes in Article 2 branch road.
Four electric capacity have formed bridge diagram: the one end that connects primary after linking together with one end of the electric capacity three in one end and the electric bridge of the electric capacity one in electric bridge, after linking together, one end of electric capacity four in one end and the electric bridge of the electric capacity two in electric capacity connects the other end of primary, after the other end of the electric capacity two in the other end and the electric capacity of the electric capacity one in electric bridge links together, connect the positive pole of bridge rectifier, after the other end of the electric capacity four in the other end and the electric bridge of the electric capacity three in electric bridge links together, connect the negative pole of form rectification.
Integrated amplifier is: the live wire end of first order integrated amplifier connects the negative pole of commutation diode, the output terminal of the end of oppisite phase of first order integrated amplifier and first order integrated amplifier, the end of oppisite phase of second level integrated amplifier is connected, the in-phase end of first order integrated amplifier connects the output terminal of the preposition unit of bridge-type, the in-phase end of second level integrated amplifier has connected two sensitivity adjustment resistance, the other end of a sensitivity adjustment resistance connects live wire, the other end of another sensitivity adjustment resistance connects ground wire, the output that the output of second level integrated amplifier is shot with video-corder unit as bridge type connects to shoot with video-corder in circuit and starts or another input end of door.
Shoot with video-corder circuit by starting or door, electronic switch, photorecorder, forming with the rest-set flip-flop, time controller, the manual control switch that show.
The output, the normal pin of lockhole switch contact extension line, the normal pin contact extension line of manual control switch, the time controller that touch integrated amplifier are received respectively the input that starts OR circuit, startup or door output have connected onsite alarming circuit, also trigger electronic switch, the output of electronic switch connects photorecorder, and electronic switch has also connected time controller and the rest-set flip-flop with demonstration.
2, the withstand voltage voltage of rectifying and wave-filtering electric capacity should be greater than 50V.
3, lockhole coverage sheet extension line is with shielding line, connects the positive pole of bridge rectifier, the object-line ground wire of shielding line after one end connection bridge type commissure electric capacity of shielding line heart yearn.
4, after lockhole is covered under sheet lid, lockhole and lockhole switch are covered completely.
For having a clear understanding of the meaning of the technical program, first will make the following instructions:
That normal door no longer needs mechanical key according to the existing achievement technology of inventor, but open the door with electronics telecontrol engineering, thereby lockhole can be covered, but also retain the mode that mechanical key opens the door simultaneously, can also open the door while having there is problem if electronic telecontrol is opened the door, instead of not enter door.If stranger wants to enter house by cracking lockhole, hand rigidly connect touch lockhole cover sheet will produce warning, start video recorder simultaneously, if also will further crack lockhole, warning that can also be formal with shoot with video-corder, antitheft series products is obtained further perfect.
For this reason, the existing meaning to each technical measures of the present invention, concrete condition is further explained as follows:
One, to shoot with video-corder monitor be a kind of multi-functional alarming device to a kind of bridge type.
1, report to the police and possessed lead, in the time just having crime behavior, just produce pre-warning: enter room when crime personnel prepare to crack lockhole, because lockhole is covered, and the extension line of lockhole coverage sheet has been connected in bridge type amplifying unit, and bridge type amplifying unit is, if there has been signal the preposition unit of bridge type, both made signal fainter, but after amplifying, can triggering sound warning circuit, rigidly connect tactile lockhole coverage sheet so work as the people's of crime hand, signal is shot with video-corder unit through bridge type and is sent pre-warning prevention.
2, further protection is: fail in pre-warning the criminal who prevents; if think that further cracking lockhole enters room; just open lockhole and covered sheet; the lockhole switch that is subject to lockhole to cover sheet compressing makes shift knob that displacement occur because lockhole covers the loosening of sheet; start warning system, thereby sent formal warning enabling signal.
3, the effect of warning not only has on-the-spot warning, starts and shoots with video-corder simultaneously, records time and reason and process that event produces.
Two, pre-warning produces principle and effect:
1,, in the time of no touch signal, when hand does not contact lockhole coverage sheet, the bridge diagram of four electric capacity (7 in Fig. 1,8,9, the 10) composition in electric bridge does not have output and exists, thereby the preposition unit of bridge type no-output; In the time having touch signal, while being hand contact lockhole coverage sheet, bridge diagram parameter changes, be the output that has had alternating current, again through after four diodes are bridge rectifier circuit (11 in Fig. 1), become direct current output, triggering sound warning unit after by two-stage integrated amplifier, signal being amplified, produces warning in advance.
2, simple in circuits, integrated amplifier is outstanding reliable:
(1), bridge type amplifying unit amplification effect is good, dependable performance: its reason is in the time of no touch signal, four electric capacity (7 in Fig. 1,8,9,10) parameter in electric bridge is consistent, internal current balance, thereby the preposition unit of bridge type no-output, and when after hand contact lockhole coverage sheet, there is touch signal, lockhole is covered sheet and has been connected the serious variation of commissure electric capacity (6 in Fig. 1) parameter generation, so there is signal output the preposition unit of bridge type, highly sensitive, circuit is reliable and stable, for integrated amplifying unit has been established fine basis.
(2), in integrated amplifying unit, there is two-stage to amplify, once the preposition unit of bridge type signal output, first order integrated amplifier is worked immediately, signal after amplifying is for the first time transferred in the integrated amplifier of the second level, and the signal after amplifying for the second time can start later circuit more reliably; Sensitivity adjustment resistance in circuit can be adjusted the sensitivity of integrated amplifier easily.Use integrated circuit to make amplifier, its benefit is that element is few, reduces the probability of component wear, and simple in circuits is easily produced.
3, video recorder is tightly followed warning and is produced, and can not produce useless record.
In Fig. 1 23 is a kind of instruments that have time control and show, i.e. time controller, as long as preset the time, it will output signal, through startup or door (21 in Fig. 1) after, open electronic switch (in Fig. 1 22), then allow photorecorder (24 in Fig. 1) work.
Produce the principle that overall process is recorded in shooting: although hand has left lockhole coverage sheet after forcing open the door, but the lockhole shift knob being pressed under lockhole coverage sheet is oppressed by lockhole coverage sheet no longer, there is variation, lockhole switch (20 in Fig. 1) is closed, so opened photorecorder (24 in Fig. 1) job record.
(1) before, generation case, after shooting record, there is displaying principle: in Fig. 1,25 is a kind of rest-set flip-flops with demonstration, thereby there is Memorability, when each or door has output to open electronic switch (in Fig. 1 22), the rest-set flip-flop that has memory is triggered in capital, once so after rest-set flip-flop is triggered, additional LED can luminescence display.
(2) principle of shooting record writing time before, generation case: shoot with video-corder at every turn and control or when door has output to open electronic switch, there is signal to trigger time controller, so can automatically record the moment of generation, thereby each hand contact lockhole is covered sheet and all can be produced and shoot with video-corder and onsite alarming circuit.
Three, being arranged on the lockhole switch on lockhole under lockhole coverage sheet 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, opening the door if now crack lockhole, must be crime behavior, and warning is now very crucial, open the door by lockhole with key and work as owner oneself, because own on the scene, therefore can not make us terrified.
2, very reliable, standby at any time, in opening the door normally and closing the door, lockhole switch can not move, thereby lockhole switch can not damage, do not need artificial additional move and open the door to close the door, do not affect the normal habits and customs of people, thereby do not affect the each normal work starting of security system yet.
3, be that lockhole switch is sensitive reliable, lockhole switch can be travel switch, just reports to the police, thereby loss is reduced to minimum in the time that crime behavior is not accomplished.Because in the time that lockhole coverage sheet is loosening, lockhole switch contact will change and send warning enabling signal.
Four, in warning circuit, amplifier tube (026 in Fig. 3) is a triode, form complementary circuit by a PNP triode (029 in Fig. 3) and NPN triode (028 in Fig. 3) audio frequency has been carried out to power amplifier, in the time having pre-alarm signal or lock-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, instead of OCL circuit, so debugging is simple, and has element not perishable, and the higher advantage of efficiency.
After the invention process, promoted the security performance of anti-theft safety door, outstanding advantage is as follows:
1, anti-theft safety door has possessed " initiatively protection ", is stranger can kept outside of the door at ordinary times, when someone commits a crime; can give warning in advance; can formally produce again warning, the situation of the passive defence of anti-theft safety door in the past that is through with completely, has promoted security personnel's performance of anti-theft safety door all sidedly.
2, warning function is outstanding reliable, highly sensitive, touch lockhole coverage sheet when having people to attempt to destroy lockhole crime, rigidly connecting, early warning type system starts immediately, because amplification effect is good, carrying load ability is strong, thereby can ensure various effect functions, uses integrated circuit to make amplifier, simple in circuits is reliable, is easy to produce.
3, video recorder can use among general family, and can not waste resource, because photorecorder just just starts in the time that there is something special, can not move at ordinary times, reduce the possibility of damaging, also saved resource, and time, process that under accurate recording, event occurs, be convenient to the process that people's understanding event occurs.
4, report to the police and start reliably, show:
(1), warning system can not be 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 in the time that lockhole shift knob is being subject to compressing and is not suffering oppression.When without crime behavior, the compressing that the button of lockhole switch is subject to lockhole covers sheet, thereby lockhole switch contact can not change, and in the time having crime behavior, it is moving that lockhole is covered sheet souththern pine, the button of lockhole switch is no longer subject to lockhole to cover the compressing of sheet, thereby variation has occurred in the contact of lockhole switch, reports to the police thereby start.
(2), reliable, in opening the door normally and closing the door, lockhole switch can not move, thereby lockhole switch can not damage, and at any time all in a kind of " highly waiting " state.
(3), easy to use.Lockhole switch does not affect normal habits and customs after installing completely.When normal door, lockhole switch keeps armed state, and when improper opening the door, lockhole switch starts immediately, can not bring because having forgotten the operation of what necessity the malfunction of warning or malfunctioning.
(4), protection is tight, do not affect normal habits and customs, laid special stress on protecting lockhole because crime behavior is all to commit a crime by lockhole mostly, and lockhole of the present invention is covered, in not affecting people's normal life and being accustomed to, has laid special stress on protecting lockhole.
Brief description of the drawings
Fig. 1 is that bridge type is shot with video-corder circuit basic diagram.
In figure: 1, the primary side of transformer; 2, the out secondary of transformer; 3, full-wave rectification diode; 4, rectifying and wave-filtering electric capacity; 5, lockhole is covered the heart yearn extension line of sheet extension line; 6, bridge type commissure electric capacity; 7, the electric capacity one in electric bridge; 8, the electric capacity two in electric bridge; 9, the electric capacity three in electric bridge; 10, the electric capacity four in electric bridge; 11, bridge rectifier circuit; 12, first order integrated amplifier; 13, first order integrated amplifier end of oppisite phase; 14, first order integrated amplifier in-phase end; 15, second level integrated amplifier; 16, sensitivity adjustment resistance; 17, second level integrated amplifier in-phase end; 18, first order integrated amplifier output terminal is also second level integrated amplifier end of oppisite phase; 19, manual control switch; 20, lockhole switch; 21, startup or door; 22, electronic switch; 23, time controller; 24, photorecorder; 25, the rest-set flip-flop that band shows; 26, warning circuit.
Fig. 2 is the scheme of installation that lockhole is covered sheet and lockhole switch.
In figure: 5, lockhole is covered the heart yearn extension line of sheet extension line; 20, lockhole switch; 27, lockhole is covered the object-line of sheet extension line; 28, parcel lockhole is covered the rubber of sheet extension line heart yearn and object-line; 29, the normally opened contact extension line of lockhole switch; 30, lockhole is covered the normal pin contact extension line of sheet; 31, the printed panel of welding lockhole switch; 32, anti-theft safety door; 33, lockhole; 34, lockhole is covered sheet.
Fig. 3 is warning circuit figure.
In figure: 01, voice sheet; 02, preposition amplifier tube; 03, the resistance between the base stage of NPN triode and the base stage of PNP triode; 04, PNP triode; 05, NPN triode; 06, coupling capacitor; 07, loudspeaker; 22, electronic switch.
Embodiment
Fig. 1 to Fig. 3 has described a kind of mode of concrete enforcement.
One, according to Fig. 2 embodiment, lockhole is installed and is covered sheet and lockhole switch.
1, be processed into and strike out the lockhole coverage sheet larger than lockhole with a hard material.
2, spile at the periphery of lockhole coverage sheet, the place punching that lockhole coverage sheet is installed at shop front lockhole is corresponding with it, the mounting hole tapping of the shop front.
4, cover between sheet and door and add hollow cushion ring at lockhole, allow hollow place expose lockhole.
5, lockhole being covered to sheet is fixed in the shop front.Should note fixing between lockhole coverage sheet and door when fixing time, pad last layer insulant is as plastic washer.
6, connect lockhole with heart yearn one end of a shielding line and cover sheet, the heart yearn other end is connected on bridge type and shoots with video-corder in circuit, the object-line ground connection of shielding line.
7, lockhole switch is welded on a bar printing plate, the printed panel that has welded switch is fixed on door lock hole.
8, an input end that connects startup or door is drawn in the normal pin of lockhole switch contact with wire, and lockhole switch normally opened contact extension line connects bridge type and shoots with video-corder the rectification output in circuit.
9, lockhole is covered after sheet is fixed and is oppressed lockhole shift knob.
Two, installation and debugging bridge type is shot with video-corder circuit;
1, selectors; The preposition unit of bridge type electric capacity used adopts withstand voltage high electric capacity kind.Diode in bridge rectifier circuit also should select the kind that back-pressure grade is high.
2, weld according to Fig. 1.
3, debugging:
(1), test and the adjustment preposition unit of bridge type: survey and penetrate penetrating with output with triode in isolated location with the voltage gear of multimeter, in the time that hand does not contact lockhole coverage sheet, the preposition unit of bridge type is output as low, below 0.5 volt, and in the time that hand contact lockhole is covered sheet, the preposition unit of bridge type is output as a high position, the nonconforming emphasis of answering is changed four electric capacity in electric bridge, whether four capacitance values are the same, if desired, the capacity inspection of available electric bridge to four electric capacity, whether the same referring to seeing number.
Test and adjustment amplifier stage unit: when the preposition unit of current bridge type no-output, bridge type amplifying circuit output voltage is low level, and while having touch signal, when there is output the preposition unit of bridge type, bridge type amplifying circuit is output as a high position, the nonconforming resistance that should adjust sensitivity adjustment resistance.
Three, the enforcement of warning circuit: weld by shown in Fig. 3.
Claims (4)
1. bridge type is shot with video-corder a monitor, it is characterized in that: shot with video-corder circuit and jointly formed by lockhole coverage sheet, lockhole switch, warning circuit, bridge type;
Wherein: lockhole switch is placed in lockhole and covers under sheet, on lockhole, when lockhole is covered sheet lid lower time, oppress the contact of lock-switch, the normal pin of lockhole switch contact is drawn and is connected to bridge type and shoots with video-corder in circuit and to start or an input end of door with wire, and lockhole switch normally opened contact extension line connects bridge type and shoots with video-corder the rectification output in circuit;
Warning circuit is made up of voice sheet, preposition amplifier tube, power-amplifier stage, acoustical generator;
Power-amplifier stage is made up of NPN triode and NPN triode, the output of voice sheet connects the base stage of preposition amplifier tube, the grounded emitter of preposition amplifier tube, the base stage of the collector of preposition amplifier tube and PNP triode is connected together, the grounded collector of PNP triode, the emitter of PNP triode connects two-way, one tunnel is the one end that connects loudspeaker after serial connection coupling capacitor, loudspeaker other end ground connection, another road connects the emitter of NPN triode, between the base stage of the base stage of NPN triode and PNP triode, connect a resistance, the output that starts OR circuit connects the collector of NPN triode,
Bridge type shoot with video-corder unit by transformer unit, the preposition unit of bridge type, integrated amplifier, shoot with video-corder circuit and jointly form;
Transformer unit has connected the preposition unit of bridge type, and the preposition unit of bridge type connects integrated amplifier, integrated amplifier connection sound warning circuit;
After lockhole coverage sheet extension line connection bridge type commissure electric capacity, connect the positive pole of bridge rectifier;
Transformer unit is the positive pole that the two ends of transformer secondary output connect respectively two commutation diodes, the central shaft heads ground connection of transformer secondary output, after linking together, the negative pole of two commutation diodes connects two-way, it is the live wire end of integrated circuit first order amplifier that the first via connects working power, the second tunnel has connected the positive pole of rectifying and wave-filtering electric capacity, the minus earth of this electric capacity;
The preposition unit of bridge type: formed by four diodes and four electric capacity; Be connected into Article 1 branch road with two diodes, another two diodes are connected into Article 2 branch road, article two, the positive pole of branch road links together becomes the positive pole of bridge rectifier, article two, the negative pole of branch road links together becomes the negative pole of bridge rectifier, article two, branch road forms bridge rectifier circuit, Article 1, in branch road, the series connection intermediate contact of two diodes becomes the output terminal of the preposition unit of bridge-type, the series connection intermediate contact ground connection of two diodes in Article 2 branch road;
Four electric capacity have formed bridge diagram: the one end that connects primary after linking together with one end of the electric capacity three in one end and the electric bridge of the electric capacity one in electric bridge, after linking together, one end of electric capacity four in one end and the electric bridge of the electric capacity two in electric capacity connects the other end of primary, after the other end of the electric capacity two in the other end and the electric capacity of the electric capacity one in electric bridge links together, connect the positive pole of bridge rectifier, after the other end of the electric capacity four in the other end and the electric bridge of the electric capacity three in electric bridge links together, connect the negative pole of form rectification;
Integrated amplifier is: the live wire end of first order integrated amplifier connects the negative pole of commutation diode, the output terminal of the end of oppisite phase of first order integrated amplifier and first order integrated amplifier, the end of oppisite phase of second level integrated amplifier is connected, the in-phase end of first order integrated amplifier connects the output terminal of the preposition unit of bridge-type, the in-phase end of second level integrated amplifier has connected two sensitivity adjustment resistance, the other end of a sensitivity adjustment resistance connects live wire, the other end of another sensitivity adjustment resistance connects ground wire, the output that the output of second level integrated amplifier is shot with video-corder unit as bridge type connects to shoot with video-corder in circuit and starts or another input end of door,
Shoot with video-corder circuit by starting or door, electronic switch, photorecorder, forming with the rest-set flip-flop, time controller, the manual control switch that show;
The output, the normal pin of lockhole switch contact extension line, the normal pin contact extension line of manual control switch, the time controller that touch integrated amplifier are received respectively the input that starts OR circuit, startup or door output have connected onsite alarming circuit, also trigger electronic switch, the output of electronic switch connects photorecorder, and electronic switch has also connected time controller and the rest-set flip-flop with demonstration.
2. a kind of bridge type according to claim 1 is shot with video-corder monitor, it is characterized in that: the withstand voltage voltage of rectifying and wave-filtering electric capacity should be greater than 50V.
3. a kind of bridge type according to claim 1 is shot with video-corder monitor, it is characterized in that: it is with shielding line that lockhole is covered sheet extension line, connects the positive pole of bridge rectifier, the object-line ground wire of shielding line after one end connection bridge type commissure electric capacity of shielding line heart yearn.
4. a kind of bridge type according to claim 1 is shot with video-corder monitor, it is characterized in that: lockhole is covered lockhole and lockhole switch after covering under sheet lid completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387075.5U CN203966259U (en) | 2014-07-14 | 2014-07-14 | A kind of bridge type is shot with video-corder monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387075.5U CN203966259U (en) | 2014-07-14 | 2014-07-14 | A kind of bridge type is shot with video-corder monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203966259U true CN203966259U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420387075.5U Expired - Fee Related CN203966259U (en) | 2014-07-14 | 2014-07-14 | A kind of bridge type is shot with video-corder monitor |
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| Country | Link |
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| CN (1) | CN203966259U (en) |
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2014
- 2014-07-14 CN CN201420387075.5U patent/CN203966259U/en not_active Expired - Fee Related
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Granted publication date: 20141126 Termination date: 20160714 |