CN103338620A - Anti-shielding switcher for video surveillance camera - Google Patents
Anti-shielding switcher for video surveillance camera Download PDFInfo
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- CN103338620A CN103338620A CN2013102000478A CN201310200047A CN103338620A CN 103338620 A CN103338620 A CN 103338620A CN 2013102000478 A CN2013102000478 A CN 2013102000478A CN 201310200047 A CN201310200047 A CN 201310200047A CN 103338620 A CN103338620 A CN 103338620A
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- box body
- shielding
- driving lever
- magnetite
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Abstract
The invention relates to an anti-shielding switcher for a video surveillance camera. The anti-shielding switcher comprises a box body and a cover body clamped on the box body. A window and a chamber are arranged on the box body. A guide shaft is arranged in the chamber. A magnet which is capable of rotating around the guide shaft is arranged on the guide shaft. A driving lever which can rotate with the magnet is connected on the magnet. A coil support is disposed outside the magnet. A coil which can drive the magnet to rotate is arranged on the coil support. A slide sheet which is positioned between the box body and the cover body and can move with the rotation of the driving lever is connected on the driving lever. An infrared cut-off filter and a glass sheet which are capable of switching and aiming at the window with the movement of the slide sheet are arranged on the slide sheet. Since the anti-shielding switcher is isolated by the box body and the cover body, the magnet is not easily subjected to external electromagnetic interference and thus does not affect product performance. The anti-shielding switcher for the video surveillance camera is simple in assembling procedures and is convenient for installation.
Description
[technical field]
The present invention relates to the anti-shielding of a kind of video monitoring camera switch.
[background technology]
Continuous increase along with social security protection consciousness, and be accompanied by the fast development of multimedia technology, network technology, video monitoring is now in the multiple industry of society: important effect has been brought into play in finance, traffic, commerce, electric power, public security, customs, national defence, residential area, and at present along with the developing rapidly of 3G mobile communication technology, use portable terminal to carry out wireless video monitoring and also begin entering in people's work, study, the life gradually.
Video monitoring is the important component part of safety and protection system, comprises front-end camera, transmission cable, video monitoring platform.Video camera can be divided into network digital camera and analog video camera, can be used as the collection of front end video signal.It is a kind of powerful general defensive character in all files.Video monitoring is directly perceived with it, accurately, in time and the information content abundant and be widely used in many occasions.In recent years, along with computer, network and image are handled, the develop rapidly of transmission technology, the video monitoring technology has also had significant progress.
Electromagnetic shielding refers to that the parts that utilize electric conducting material or ferromagnetic material to make shield large turbo-type generator stator core end, to reduce the supplementary load loss that caused by the stator winding end leakage field and the measure of local pyrexia in structural member.Between the communication aspects shielding is exactly to two area of space, carry out the isolation of metal, to control electric field, magnetic field and electromagnetic wave by induction and the radiation of a zone to another zone.Specifically, be surrounded with the interference source of shield with component, circuit, sub-assembly, cable or whole system exactly, prevent that interfere with electromagnetic field is to outdiffusion; With shield receiving circuit, equipment or system are surrounded, prevent that they are subjected to the influence of external electromagnetic field.Whether not electromagnetic shielding and shield ground connection relation.Real two factors of having only that influence the shield screening effectiveness: one is that whole shield surface must be that conduction is continuous, and another is that the conductor that directly penetrates shield can not be arranged.A lot of conduction discontinuity poinies are arranged on the shield, and a topmost class is the non-conductive slit that shield different piece junction forms.These nonconducting slits have just produced electromagnetic leakage, can leak on the slit from container as fluid.A method that solves this leakage is at place, slit filled conductive elastomeric material, eliminates non-conductive point.This is just as the reason at the place, slit of fluid container filled rubber.This elastic conduction packing material is exactly the electromagnetic sealing liner.In many documents, electromagnetic shield is likened into the liquid airtight container, as if having only when with conductive elastomer gap sealing being prevented electromagnetic-wave leakage to watertight degree.In fact this is inapt.Because slit or hole whether can leakage electromagnetic waves, depend on that slit or hole are with respect to the size of electromagnetic wavelength.When wavelength during much larger than opening size, can't produce obvious leak.
The anti-shielding of existing video monitoring camera switch directly is installed in the video monitoring, there is not the isolation of box body and lid, magnetite is subjected to the interference of external electromagnetic easily and influences properties of product, on the other hand, the anti-shielding of existing video monitoring camera switch linkage editor complexity is not easy to install.
[summary of the invention]
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art, the anti-shielding of a kind of video monitoring camera switch is provided, should anti-ly shield switch because the isolation of box body and lid is arranged, magnetite is not vulnerable to the interference of external electromagnetic and influences properties of product, linkage editor is simple, is convenient to install.
For achieving the above object, the present invention has adopted following technical proposals:
The anti-shielding of a kind of video monitoring camera switch, comprise box body and the lid that be located on the described box body, described box body is provided with window and chamber, in described chamber, be provided with guide shaft, described guide shaft is provided with can be around the magnetite of described guide shaft rotation, being connected with at described magnetite can be with the driving lever of described magnetite running, in described magnetite outer setting coil brace is arranged, described coil brace is provided with and can drives the coil that described magnetite rotates, the slide that is connected with between described box body and described lid and can moves with described driving lever running at described driving lever, described slide is provided with cutoff filter and sheet glass, and described cutoff filter and described sheet glass can switch and aim at described window along with the movement of described slide.
Be connected with circuit board at coil as mentioned above.
Described slide is provided with through hole, and described driving lever is provided with the projection that can snap among the described through hole.
Described through hole is strip.
Described box body is provided with positioning wedged block, and described positioning wedged block is provided with draw-in groove.
The operation principle of the anti-shielding of video monitoring camera switch is: assemble guide shaft at coil brace, behind magnetite and the driving lever, after the coil brace outside winds coil, directly snap fitted among the box body, refill the slide that has cutoff filter and sheet glass, external circuit inserts the anti-shielding of video monitoring camera switch by circuit board, the circuit board closing coil, cover lid, insert current signal by circuit board and can carry out switch operating, current signal is passed to coil by circuit board, produce magnetic field behind the coil electricity and drive the magnetite rotation, magnetite drives driving lever and rotates, driving lever drives slide and moves, thereby makes cutoff filter or simple glass sheet shift one's position among window, realizes switching.Consider Financial cost and effect, described box body and be preferably plastic material, lid is metal material, because magnetite is wrapped in the coil, institute is in case screening ability is further strengthened, and magnetite is the next door at coil on the market, the parcel that does not have coil, anti-screening ability is poor.
The invention has the beneficial effects as follows:
1, the anti-shielding switch of the video monitoring camera among the present invention passes through at electric current so because whole dynamical system has box body and lid as protection, when producing magnetic field, can isolate the interference of external magnetic field.
2, the anti-shielding of the video monitoring camera among the present invention switch can install in the box body by overall time as changeover module power source part, easily assembled, coil is around magnetite one circle, and the magnetic field of Chan Shenging is bigger like this, can make driving lever have enough strength to carry out switch operating.
3, the power system device that switches of the anti-shielding of the video monitoring camera among the present invention switch can reduce the shared space size of whole changeover module in box body inside.
[description of drawings]
Fig. 1 is three-dimensional view of the present invention.
Fig. 2 is explosive view of the present invention.
Fig. 3 is the explosive view of another angle of the present invention.
Fig. 4 is upward view of the present invention.
Fig. 5 is A-A cutaway view shown in Figure 4.
[embodiment]
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Extremely shown in Figure 5 as Fig. 1, the anti-shielding of a kind of video monitoring camera switch, comprise box body 1 and the lid 2 that be located on the described box body 1, described box body 1 is provided with window 11 and chamber 12, in described chamber 12, be provided with guide shaft 3, described guide shaft 3 is provided with can be around the magnetite 4 of described guide shaft 3 rotations, being connected with at described magnetite 4 can be with the driving lever 5 of described magnetite 4 runnings, in described magnetite 4 outer setting coil brace 6 is arranged, described coil brace 6 is provided with and can drives the coil 7 that described magnetite 4 rotates, the slide 8 that is connected with between described box body 1 and described lid 2 and can moves with described driving lever 5 runnings at described driving lever 5, described slide 8 is provided with cutoff filter 81 and sheet glass 82, described cutoff filter 81 and described sheet glass 82 can switch and aim at described window 11 along with the movement of described slide 8, should anti-ly shield switch because the isolation of box body and lid is arranged, magnetite is not vulnerable to the interference of external electromagnetic and influences properties of product, linkage editor is simple, be convenient to install, its operation principle is: assemble guide shaft 3 at coil brace 6, behind magnetite 4 and the driving lever 5, after winding coil 7, coil brace 6 outsides directly snap fitted among the box body 1, refill the slide 8 that has cutoff filter 81 and sheet glass 82, external circuit inserts the anti-shielding of video monitoring camera switch by circuit board 9, circuit board 9 closing coils 7, cover lid 2, insert current signal by circuit board 9 and can carry out switch operating, current signal is passed to coil 7 by circuit board 9, coil 7 energising backs produce magnetic field and drive magnetite 4 rotations, magnetite 4 drives driving lever 5 and rotates, driving lever 5 drives slide 8 and moves, thereby make cutoff filter 81 or simple glass sheet 82 among window 11, shift one's position, realize switching.
As Fig. 2, shown in Figure 3, in the present embodiment, be connected with circuit board 9 at described coil 7, this circuit board 9 is convenient to electric current is switched, and realizes control.
As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, in the present embodiment, described slide 8 is provided with through hole 83, and described driving lever 5 is provided with the projection 51 that can snap among the described through hole 83, designs ingeniously, is convenient to operation.
As Fig. 2, shown in Figure 3, in the present embodiment, described through hole 83 is preferably strip, and the projection 51 of being convenient to driving lever is realized the movement to slide 8 in rotating process.
As Fig. 1, Fig. 2, shown in Figure 3, in the present embodiment, described box body 1 is provided with positioning wedged block 13, and described positioning wedged block 13 is provided with draw-in groove 131, is convenient to anti-shielding switch is loaded among the video monitoring camera.
The operation principle of the anti-shielding of video monitoring camera switch is among the present invention: assemble guide shaft 3 at coil brace 6, behind magnetite 4 and the driving lever 5, after winding coil 7, coil brace 6 outsides directly snap fitted among the box body 1, refill the slide 8 that has cutoff filter 81 and sheet glass 82, external circuit inserts the anti-shielding of video monitoring camera switch by circuit board 9, circuit board 9 closing coils 7, cover lid 2, insert current signal by circuit board 9 and can carry out switch operating, current signal is passed to coil 7 by circuit board 9, coil 7 energising backs produce magnetic field and drive magnetite 4 rotations, magnetite 4 drives driving lever 5 and rotates, driving lever 5 drives slide 8 and moves, thereby makes cutoff filter 81 or simple glass sheet 82 shift one's position among window 11, realizes switching.Consider Financial cost and effect, described box body 1 and be preferably plastic material, lid 2 is metal material, because magnetite is wrapped in the coil, institute is in case screening ability is further strengthened, and magnetite is the next door at coil on the market, the parcel that does not have coil, anti-screening ability is poor.
Claims (5)
1. a video monitoring camera is prevented the shielding switch, it is characterized in that: comprise box body (1) and be located in lid (2) on the described box body (1), described box body (1) is provided with window (11) and chamber (12), in described chamber (12), be provided with guide shaft (3), described guide shaft (3) is provided with can be around the magnetite (4) of described guide shaft (3) rotation, being connected with at described magnetite (4) can be with the driving lever (5) of described magnetite (4) running, in described magnetite (4) outer setting coil brace (6) is arranged, described coil brace (6) is provided with and can drives the coil (7) that described magnetite (4) rotates, be connected with the slide (8) that is positioned between described box body (1) and the described lid (2) and can moves with described driving lever (5) running at described driving lever (5), described slide (8) is provided with cutoff filter (81) and sheet glass (82), and described cutoff filter (81) and described sheet glass (82) can switch and aim at described window (11) along with the movement of described slide (8).
2. the anti-shielding of a kind of video monitoring camera according to claim 1 switch is characterized in that: be connected with circuit board (9) at described coil (7).
3. a kind of video monitoring camera according to claim 1 is prevented the shielding switch, it is characterized in that: described slide (8) is provided with through hole (83), and described driving lever (5) is provided with the projection (51) that can snap among the described through hole (83).
4. a kind of video monitoring camera according to claim 3 is prevented the shielding switch, and it is characterized in that: described through hole (83) is strip.
5. a kind of video monitoring camera according to claim 1 is prevented the shielding switch, and it is characterized in that: described box body (1) is provided with positioning wedged block (13), and described positioning wedged block (13) is provided with draw-in groove (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102000478A CN103338620A (en) | 2013-05-24 | 2013-05-24 | Anti-shielding switcher for video surveillance camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102000478A CN103338620A (en) | 2013-05-24 | 2013-05-24 | Anti-shielding switcher for video surveillance camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103338620A true CN103338620A (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102000478A Pending CN103338620A (en) | 2013-05-24 | 2013-05-24 | Anti-shielding switcher for video surveillance camera |
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| CN (1) | CN103338620A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519568A (en) * | 2019-09-05 | 2019-11-29 | 郑州维纳实验设备有限公司 | A kind of adaptive switched infrared surveillance equipment of magnetic ejector half |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004055612A (en) * | 2002-07-16 | 2004-02-19 | Anritsu Corp | Electromagnetic interference shielding box |
| CN201700686U (en) * | 2010-05-19 | 2011-01-12 | 常州雷宁电磁屏蔽设备有限公司 | Web shielding desk |
| CN202615095U (en) * | 2012-04-13 | 2012-12-19 | 中山联合光电科技有限公司 | Double-optical-filter switching system which is stable, safe, accurate in switching and simple in implementation process |
| CN203377976U (en) * | 2013-05-24 | 2014-01-01 | 中山联合光电科技有限公司 | Shielding switcher for camera |
-
2013
- 2013-05-24 CN CN2013102000478A patent/CN103338620A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004055612A (en) * | 2002-07-16 | 2004-02-19 | Anritsu Corp | Electromagnetic interference shielding box |
| CN201700686U (en) * | 2010-05-19 | 2011-01-12 | 常州雷宁电磁屏蔽设备有限公司 | Web shielding desk |
| CN202615095U (en) * | 2012-04-13 | 2012-12-19 | 中山联合光电科技有限公司 | Double-optical-filter switching system which is stable, safe, accurate in switching and simple in implementation process |
| CN203377976U (en) * | 2013-05-24 | 2014-01-01 | 中山联合光电科技有限公司 | Shielding switcher for camera |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519568A (en) * | 2019-09-05 | 2019-11-29 | 郑州维纳实验设备有限公司 | A kind of adaptive switched infrared surveillance equipment of magnetic ejector half |
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Application publication date: 20131002 |