CN202939401U - Fast-assembling self-locking optical filter switching device - Google Patents
Fast-assembling self-locking optical filter switching device Download PDFInfo
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- CN202939401U CN202939401U CN201220597245.3U CN201220597245U CN202939401U CN 202939401 U CN202939401 U CN 202939401U CN 201220597245 U CN201220597245 U CN 201220597245U CN 202939401 U CN202939401 U CN 202939401U
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- filtering bar
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- optical filtering
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Abstract
The utility model discloses a fast-assembling self-locking optical filter switching device which comprises a lens seat, a pedestal, an optical filter seat, a motor and a worm, wherein the lens seat is mounted on the pedestal, the motor is fixedly mounted in the pedestal, the worm is fixedly mounted on a motor rotor, the optical filter seat is installed on the pedestal through a large shaft and is provided with two optical filters, arc straight teeth are arranged at the periphery of the optical filter seat, and the worm drives the optical filter seat to rotate. According to the utility model, a direct current motor is used as a driving device, work done by multiple rotation of the motor is far more than work done by rotation at an angle of about 90 DEG by a swinging electromagnet, and thus, through rotation of the motor, the thick optical filters can be driven and blocking of a machine does not happen; a worm helical gear pair and a large-transmission ratio gear pair are used in a transmission mechanism, so an effect of self-locking at a limit position is realized; a fast-assembling structure is used for connection of parts of the switching device, so assembling is simple, convenient and fast.
Description
Technical field
The utility model discloses a kind of device that switches optical filter, and particularly a kind of fast-mounting self-locking type optical-filter switcher, be mainly used in CCTV camera and photographic equipment.
Background technology
Along with the raising of people's living standard and the enhancing of awareness of safety, the application of safety monitoring in people's life is more and more, current progressive gradually along with the safety monitoring technology, the camera time of CCTV camera can be divided into day and night, i.e. dual-purpose CCTV camera round the clock.Dual-purpose CCTV camera is in order to obtain video pictures preferably round the clock, its by day with to use two different tablet filters night, switching by two tablet filters, realize that day and night can obtain video pictures preferably, optical filter switching of the prior art generally all realizes by optical-filter switcher.Optical-filter switcher of the prior art, internal drive is mainly to use oscillating electromagnetic iron, by oscillating electromagnetic iron 90-degree rotation left and right, drives the position that filter supporter is rotated 60 degree left and right, thereby realizes the switching optical filter.This main shortcoming of mode of driving is: 1, driving force is less, can not switch thick optical filter, and easy card machine, puts after all electromagnet 90-degree rotation institute work little; 2, the corresponding structure self-lock force of this type of drive is very little, is not suitable in environment, using vibrating frequently; 3, complex structure, the production assembly cost is higher.
Summary of the invention
For the above-mentioned shortcoming that optical-filter switcher driving force of the prior art is little, self-lock ability is poor of mentioning, the utility model provides a kind of new fast-mounting self-locking type optical-filter switcher, it drives worm screw to rotate by motor, drive cogged optical filtering bar by worm screw and rotate, realize the switching of optical filter.
The technical scheme that the utility model solves its technical matters employing is: a kind of fast-mounting self-locking type optical-filter switcher, switch comprises lens mount, base, optical filtering bar, motor and worm screw, on the lens mount mounting seat, motor is fixedly mounted in base, worm screw is fixedly mounted on motor rotor, and the optical filtering bar is arranged on base by macro-axis, and two optical filters are installed on the optical filtering bar, optical filtering bar outer is provided with the arc straight-tooth, and worm drive optical filtering bar rotates.
The technical scheme that the utility model solves its technical matters employing further comprises:
Described switch also comprises gear, and gear is arranged on base by little axle, and worm screw is meshed with gear, and gear is meshed with arc straight-tooth on the optical filtering bar.
Described gear adopts double-layer gear, and one deck is spur gear, and another layer is spiral gear, and spur gear and spiral gear are fixedly installed togather, and worm screw is meshed with spiral gear, and the arc straight-tooth on the optical filtering bar is meshed with spur gear.
Be fixed with buckle on described base, be fixed with grab on lens mount, grab engages mutually with buckle.
Described switch also comprises dust cap, and dust cap is arranged between lens mount and base.
Have light hole on described dust cap, when the optical filtering bar moves to the first limit position, the first optical filter on the optical filtering bar just keeps off at the light hole place, and when the optical filtering bar moves to the second limit position, the second optical filter on the optical filtering bar just keeps off at the light hole place.
The beneficial effects of the utility model are: the driving element in the utility model adopts d.c. motor, motor rotation turns that (in the utility model, motor is to rotate 12 to turn more, according to different ratio of gear, institute's rotation number can be different) institute's work is far away higher than oscillating electromagnetic iron 90-degree rotation left and right institute work, and naturally this mode can drive thick optical filter and not there will be card machine.In the utility model, gear train uses the gear pair of worm and helical gear pair and big speed ratio, the effect of the effective self-locking in position that reaches capacity.In the utility model, the connection of part adopts quick fixation structure, assembles simple, convenient, fast.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
The accompanying drawing explanation
Fig. 1 is front of the present utility model schematic perspective view.
Fig. 2 is reverse side schematic perspective view of the present utility model.
Fig. 3 is blast structural representation of the present utility model.
Fig. 4 is inner gear train schematic perspective view of the present utility model.
Fig. 5 is inner drive mechanism floor map of the present utility model.
Fig. 6 is core of the present utility model---worm and helical gear is secondary, gear pair transmission perspective view.
Fig. 7 is the schematic perspective view that the utility model is not detained lens mount.
Fig. 8 is the schematic perspective view of another specification lens mount of the utility model button.
In figure, 1-motor, 2-worm screw, 3-double-layer gear, the 3-1-spur gear, 3-2-spiral gear, 4-optical filtering bar, 4-1-arc straight-tooth, the 4-2-axis hole, 5-the first optical filter, 6-the second optical filter, the 7-base, 7-1-motor installation position, the little axle of 7-2-, the 7-3-macro-axis, 7-4-buckle, 8-dust cap, the 8-1-light hole, 9-lens mount, 9-1-grab.
Embodiment
The present embodiment is the utility model preferred implementation, and other all its principles are identical with the present embodiment or approximate with basic structure, all within the utility model protection domain.
Please refer to accompanying drawing 1 to accompanying drawing 3 and accompanying drawing 7, the utility model main body comprises base 7 and lens mount 9, base 7 and lens mount 9 are fixedly installed togather, form main body and make mechanism, in the present embodiment, base 7 is provided with buckle 7-4, be fixed with grab 9-1 on lens mount 9, during installation, grab 9-1 is connected in buckle 7-4, and base 7 and lens mount 9 are installed togather, in the present embodiment, between base 7 and lens mount 9, dust cap 8 also is installed, offers light hole 8-1 on dust cap 8, for monitoring use.
Please in conjunction with referring to accompanying drawing 4 to accompanying drawing 6, core texture of the present utility model is drive mechanism, in the present embodiment, offer motor installation position 7-1 on base 7, motor 1 is fixedly mounted on motor installation position 7-1 place, and in the present embodiment, motor 1 adopts d.c. motor, be installed with worm screw 2 on motor drive shaft, by worm screw 2, drive optical filtering bar 4 to rotate.In the present embodiment, on the little axle 7-2 be fixedly installed, gear 3 is installed on base 7, gear 3 can rotate along little axle 7-2, and in the present embodiment, gear 3 adopts double-layer gear, its one deck is spur gear 3-1, another layer is spiral gear 3-2, and two-layer gear is fixedly installed togather, and worm screw 2 directly meshes with spiral gear 3-2, worm screw 2 forms one group of worm and helical gear pair with spiral gear 3-2, and spiral gear 3-2 just can be matched with the angle of inclination of worm screw 2.In the present embodiment, be fixed with macro-axis 7-3 on base 7, offer axis hole 4-2 on optical filtering bar 4, macro-axis 7-3 is inserted in axis hole 4-2, optical filtering bar 4 is arranged on to macro-axis 7-3 place, the bar 4 that makes to filter can rotate along macro-axis 7-3, in the present embodiment, optical filtering bar 4 outer edges are provided with arc straight-tooth 4-1, it is the center of circle that arc straight-tooth 4-1 be take axis hole 4-2 circle centre position, be circle distribution, in the present embodiment, the size of arc straight-tooth 4-1 on optical filtering bar 4 is identical with spur gear 3-1 size, arc straight-tooth 4-1 and spur gear 3-1 directly mesh, spur gear 3-1 and arc straight-tooth 4-1 form one group of gear pair.In the present embodiment, motor 1 energising rotation turns more, and worm screw 2 is the same number of turns of rotating photo also, and worm screw 2 drives double-layer gears 3 rotations, and double-layer gear 3 drives 4 rotations of optical filtering bar, and optical filtering bar 4 can rotate to an extreme position; When positive and negative the exchanging of electric current of giving motor 1, motor 1 reverse rotation turns more, drives optical filtering bar 4 and rotates to another extreme position, in the present embodiment, motor 1 rotation turns institute's work more can provide a larger revolving force to optical filtering bar 4, makes optical filtering bar 4 easily rotate.In addition, worm screw 2 has formed one group of worm and helical gear pair with spiral gear 3-2, and there are larger ratio of gear in spur gear 3-1 and arc straight-tooth 4-1, this combination transmission be unidirectional (be that worm screw 2 can easily drive 4 rotations of optical filtering bar while rotating, and optical filtering bar 4 resistance when driving worm screws 2 and rotating is quite large), obviously, during motor 1 no power, optical filtering bar 4 remains on extreme position.Corresponding daytime of the optical filter of two extreme positions and evening two kinds of environments for use.In the present embodiment, be installed with the first optical filter 5 and the second optical filter 6 on optical filtering bar 4, during assembling, with UV glue, the first optical filter 5 and the second optical filter 6 be attached to respectively in two square holes of optical filtering bar 4 and solidify, in the present embodiment, the first optical filter 5 and the second optical filter 6 all are square, and arrange at an angle, when the bar 4 that makes to filter moves to two extreme positions, the first optical filter 5 and the second optical filter 6 can keep off respectively the light hole 8-1 position on dust cap 8, reach the effect of optical filtering.
The utility model when mounted, worm screw 2 is tightly placed on the axle of motor 1, then motor 1 is put into to the motor installation position 7-1 of base 7, the little axle 7-2 that double-layer gear 3 is aimed to base 7 inserts, the macro-axis 7-3 that the axis hole 4-2 of optical filtering bar 4 is aimed to base 7 inserts, then cover dust cap 8, finally the grab 9-1 of the buckle 7-4 of base 7 and lens mount 9 being interlocked, (the utility model also can interlock with the lens mount of other specification, as shown in Figure 8).By the simple assembly process of these several steps, a finished product has just completed.This assembly connection from bottom to top, improved production efficiency greatly.Integral body incorporates the quick fixation structure of exempting from instrument without screw in addition, makes and produces the assembling simple and fast, and the homogeneity of product degree is high, and the product usability is stable.
Driving element in the utility model adopts d.c. motor, motor rotation turns that (in the utility model, motor is to rotate 12 to turn more, according to different ratio of gear, institute's rotation number can be different) institute's work is far away higher than oscillating electromagnetic iron 90-degree rotation left and right institute work, and naturally this mode can drive thick optical filter and not there will be card machine.In the utility model, gear train uses the gear pair of worm and helical gear pair and big speed ratio, the effect of the effective self-locking in position that reaches capacity.In the utility model, the connection of part adopts quick fixation structure, assembles simple, convenient, fast.
Claims (6)
1. a fast-mounting self-locking type optical-filter switcher, it is characterized in that: described switch comprises lens mount, base, optical filtering bar, motor and worm screw, on the lens mount mounting seat, motor is fixedly mounted in base, worm screw is fixedly mounted on motor rotor, and the optical filtering bar is arranged on base by macro-axis, and two optical filters are installed on the optical filtering bar, optical filtering bar outer is provided with the arc straight-tooth, and worm drive optical filtering bar rotates.
2. fast-mounting self-locking type optical-filter switcher according to claim 1, it is characterized in that: described switch also comprises gear, and gear is arranged on base by little axle, and worm screw is meshed with gear, and gear is meshed with arc straight-tooth on the optical filtering bar.
3. fast-mounting self-locking type optical-filter switcher according to claim 2, it is characterized in that: described gear adopts double-layer gear, one deck is spur gear, another layer is spiral gear, spur gear and spiral gear are fixedly installed togather, worm screw is meshed with spiral gear, and the arc straight-tooth on the optical filtering bar is meshed with spur gear.
4. according to claim 1 or 2 or 3 described fast-mounting self-locking type optical-filter switchers, it is characterized in that: be fixed with buckle on described base, be fixed with grab on lens mount, grab engages mutually with buckle.
5. according to claim 1 or 2 or 3 described fast-mounting self-locking type optical-filter switchers, it is characterized in that: described switch also comprises dust cap, and dust cap is arranged between lens mount and base.
6. fast-mounting self-locking type optical-filter switcher according to claim 5, it is characterized in that: on described dust cap, have light hole, when the optical filtering bar moves to the first limit position, the first optical filter on the optical filtering bar just keeps off at the light hole place, when the optical filtering bar moves to the second limit position, the second optical filter on the optical filtering bar just keeps off at the light hole place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220597245.3U CN202939401U (en) | 2012-11-13 | 2012-11-13 | Fast-assembling self-locking optical filter switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220597245.3U CN202939401U (en) | 2012-11-13 | 2012-11-13 | Fast-assembling self-locking optical filter switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939401U true CN202939401U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220597245.3U Expired - Fee Related CN202939401U (en) | 2012-11-13 | 2012-11-13 | Fast-assembling self-locking optical filter switching device |
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| CN (1) | CN202939401U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065858A (en) * | 2014-05-08 | 2014-09-24 | 惠州海格科技有限公司 | Camera and manufacturing method thereof |
| CN104101977A (en) * | 2014-08-14 | 2014-10-15 | 厦门力鼎光电技术有限公司 | Novel light-filtering device |
| WO2016116009A1 (en) * | 2015-01-23 | 2016-07-28 | 宁波舜宇光电信息有限公司 | Security protection system, security protection camera module and manufacturing method therefor |
| CN107885015A (en) * | 2017-10-09 | 2018-04-06 | 深圳市煜辰光学有限公司 | Stick on double optical filtering switch of glass |
| CN111239951A (en) * | 2020-01-17 | 2020-06-05 | 赣州市奥海纳光电有限公司 | Novel pendulum type optical filter self-locking switcher |
-
2012
- 2012-11-13 CN CN201220597245.3U patent/CN202939401U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065858A (en) * | 2014-05-08 | 2014-09-24 | 惠州海格科技有限公司 | Camera and manufacturing method thereof |
| CN104101977A (en) * | 2014-08-14 | 2014-10-15 | 厦门力鼎光电技术有限公司 | Novel light-filtering device |
| CN104101977B (en) * | 2014-08-14 | 2016-04-20 | 厦门力鼎光电技术有限公司 | A kind of novel filtering apparatus |
| WO2016116009A1 (en) * | 2015-01-23 | 2016-07-28 | 宁波舜宇光电信息有限公司 | Security protection system, security protection camera module and manufacturing method therefor |
| CN107885015A (en) * | 2017-10-09 | 2018-04-06 | 深圳市煜辰光学有限公司 | Stick on double optical filtering switch of glass |
| CN111239951A (en) * | 2020-01-17 | 2020-06-05 | 赣州市奥海纳光电有限公司 | Novel pendulum type optical filter self-locking switcher |
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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: 20130515 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |