CN203502715U

CN203502715U - Novel optical filter switcher

Info

Publication number: CN203502715U
Application number: CN201320517937.7U
Authority: CN
Inventors: 王传富
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-21
Filing date: 2013-08-21
Publication date: 2014-03-26
Anticipated expiration: 2023-08-21

Abstract

The utility model discloses a novel optical filter switcher comprising a main installation seat, a lens seat and an optical filter switching device, the lens seat is fixedly arranged on the upper surface of the main installation seat, the optical filter switching device is fixed under the main installation seat via a buckle, the optical filter switching device comprises an upper shell, a lower shell, and a switching assembly arranged between the upper shell and the lower shell, and the switching assembly comprises a motor, a worm, a worm gear, a rectangular optical filter seat and two optical filters arranged on the optical filter seat. By adopting the above technical solution, the novel filter switcher is advantaged by simple assembling, long service lifetime, high switching fluency, rapid and precise positioning, free from interferences of other electric appliance elements, and high universality, and the optical filter switcher does not easily slip or get stuck.

Description

Novel filter switch

Technical field

The utility model relates to a kind of video camera accessory, relates in particular to a kind of optical-filter switcher that utilizes driven by motor worm gear and worm screw rotation to realize optical filter switching.

Background technology

Raising along with people's living standard, video camera enters into daily life gradually, people can not meet the video camera of simple daily or ight, and pursue gradually the video camera of day and night, this video camera need to be provided with an optical-filter switcher conventionally in video camera, by day or when night uses, by optical-filter switcher, switch different optical filters, to reach different filter effects.

Existing optical-filter switcher mainly contains two kinds, and a kind of is electromagnetic type optical-filter switcher, and neck magnet has magnetic pole, inductive coil N/S utmost point energising under rated voltage, or the energising of the S/N utmost point, under magnetic pole repulsive interaction, driving fork, fork band movable slider carries out left and right and switches; Be a motor type optical-filter switcher, adopt the forward and reverse rotation of d.c. motor, the gear driven optical filter travelling carriage of motor is realized travelling carriage parallel, and there is phase magnet at two ends, left and right, and object is that optical filter travelling carriage is moved being given a shock Shi Buhui.Summary is got up, and these optical-filter switchers exist following shortcoming: (1) lens mount plastic cement, and lamp plate is opened rear high temperature deformation, causes image blurring; (2) it is very poor that rear self-locking performance is switched in optical filter left and right, after vibrations, be difficult for resetting, or can be directly stuck; (3) magnet is subject to the impact of extraneous metal, makes to cut magnetic direction and is obstructed and maybe can not switches; (4) resistance is excessive, and power consumption is large, switches continuously heating serious, easily causes stuckly not switch; (5) switching dynamics is little, easily causes switching not in place, can not adapt to the optical filter of different-thickness; (6) can not adapt to the driving of different voltages; Universal poor; (7) physical life is short, assembles loaded down with trivial details.

Utility model content

The purpose of this utility model is for the deficiencies in the prior art, to provide a kind of assembles simply, locate fast accurate, switch smooth, not to be subject to other electrical parts interference, switching life-span length optical-filter switcher.

To achieve these goals, the technical scheme that the utility model provides is: a kind of novel filter switch is provided, comprise main mount pad, lens mount and switching device of optical fiber, described lens mount is fixedly mounted on main mount pad upper surface, described switching device of optical fiber is fixed by snap below main mount pad, described switching device of optical fiber comprises upper shell, lower house and be arranged on upper shell, changeover module between lower house, described changeover module comprises motor, worm screw, worm gear, the optical filtering bar of rectangle and be arranged on two optical filters on optical filtering bar, described optical filtering bar edge has tooth bar, described worm screw end has helical tooth, the tooth bar of the gear teeth of described worm gear and optical filtering bar, the helical tooth of worm screw meshes respectively, thereby described driven by motor worm and worm wheel rotate the bar that makes to filter and move, realizing optical filter switches.

Described worm gear adopts two-stage worm gear, comprises upper and lower integrated fixing small gear and large worm gear, the tooth bar of described optical filtering bar and the tooth mesh of small gear, the tooth mesh of the helical tooth of described worm screw and large worm gear.

The lower house of described switching device of optical fiber is provided with joint pin, and described worm gear central authorities have axis hole, and described joint pin is fixed on upper shell through axis hole, realizes the integrated fixing of switching device of optical fiber.

On the lower house of described switching device of optical fiber, have two draw runners, the two ends of described optical filtering bar have two chutes, the mutual chimeric formation slide assemblies of described chute and draw runner, and described optical filtering bar is realized fixing and is slided by slide assemblies.

The surrounding of described main mount pad is mutual nested 8 double-screw bolts that are provided with for fixation also.

Adopt technique scheme, the beneficial effect of optical-filter switcher described in the utility model is: optical filter switches by using driven by motor worm screw, worm screw drives two-stage worm gear to rotate and realizes optical filtering bar parallel, described worm and gear has auto-lock function, good fixing effect after switching, not sliding position, two-stage worm gear is realized and being slowed down, effectively regulate transmission speed and switching dynamics, reduced the resistance while switching, there will not be stuck or cut phenomenon not in place; Described optical filtering bar is used rectangular configuration, assembling is simple, optical filter is linear level and smooth mobile, locate fast accurate more, switching device of optical fiber is fixed by buckle and main mount pad in addition, and described switching device of optical fiber inside is fixedly connected with by integrated connection post, save the required copper post of other switch, not only saved cost, and easily dismounting, assembly difficulty reduced.

By following description also by reference to the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used for explaining embodiment of the present utility model.

Accompanying drawing explanation

The Facad structure schematic diagram of the optical-filter switcher that Fig. 1 provides for the utility model embodiment.

The bottom surface structure schematic diagram of the optical-filter switcher that Fig. 2 provides for the utility model embodiment.

The external structure schematic diagram of the switching device of optical fiber that Fig. 3 provides for the utility model embodiment.

The inner structure schematic diagram of the switching device of optical fiber that Fig. 4 provides for the utility model embodiment.

The structural representation of the changeover module that Fig. 5 provides for the utility model embodiment.

The structural representation of the optical filtering bar that Fig. 6 provides for the utility model embodiment.

The structural representation of the worm gear that Fig. 7 provides for the utility model embodiment.

The inner structure schematic diagram of the lower house that Fig. 8 provides for the utility model embodiment.

Embodiment

With reference now to accompanying drawing, describe embodiment of the present utility model, in accompanying drawing, similarly element numbers represents similar element.

The utility model embodiment provides a kind of and has assembled simply, has switched smoothness, has not been subject to other electrical parts to disturb, switch the novel filter switch of life-span length.

As shown in Figure 1-2, optical-filter switcher described in the utility model embodiment, comprise main mount pad 1, lens mount 2 and switching device of optical fiber 3, described lens mount 2 is fixedly mounted on main mount pad 1 upper surface, and described switching device of optical fiber 3 is fixed on below main mount pad 1 by buckle 311.

As shown in Figure 3-4, described switching device of optical fiber 3 comprises upper shell 32, lower house 31 and is arranged on the changeover module 30 between upper shell 32, lower house 31, and on described upper shell 32 and lower house 31, have corresponding through hole 33, described through hole 33 is for printing opacity.

As shown in Figure 5, described changeover module 30 comprises the optical filtering bar 304 of motor 301, worm screw 302, worm gear 303, rectangle and is arranged on two optical filters 305 on optical filtering bar 304, described optical filtering bar 304 edges have tooth bar 306, described worm screw 302 ends have helical tooth, the helical tooth of the tooth bar of the gear teeth of described worm gear 303 and optical filtering bar 304, worm screw 302 meshes respectively, described motor 301 drives worm screw 302 and worm gear 303 to rotate, described worm gear 303 rotates and drives optical filtering bar 304 to move, and realizes the switching of two optical filters 305.

As shown in Figure 6, on the side of described optical filtering bar 304, have tooth bar 306, in the middle of described, next-door neighbour is provided with the mounting groove 308 of two rectangles, and described mounting groove 308 is for installing optical filter 305, and the both sides of described mounting groove 308 are also respectively equipped with a chute parallel to each other 307.

As shown in Figure 7, described worm gear 303 adopts two-stage worm gear, comprise upper and lower integrated fixing small gear 303b and large worm gear 303a, the tooth mesh of the tooth bar of described optical filtering bar 304 and small gear 303b, the tooth mesh of the helical tooth of described worm screw 302 and large worm gear 303b, the central authorities of described worm gear 303 also have the axis hole 303c of hollow.

As shown in Figure 8, the both sides of the lower house 31 of described switching device of optical fiber 3 are provided with for being fixed to the buckle 311 of main mount pad 1, described inner side is provided with joint pin 312, described upper shell 32 and lower house 31 are fixed and are connected and composed a cavity by joint pin 312, described joint pin 312 also passes the axis hole of worm gear 303, on described lower house 31, the both sides of through hole 33 are also provided with two parallel draw runners 313, two chutes 307 that are provided with of described optical filtering bar 304 and the mutual chimeric formation slide assemblies of draw runner 313 on lower house 31, described optical filtering bar 304 is realized fixing and is slided by slide assemblies.

As shown in Figure 1, the surrounding of described main mount pad 1 mutual nested 8 double-screw bolts 11 that are provided with for fixation also.

Whole switch structured material adopts plastic cement and kirsite to combine, 2 of lens mounts adopt kirsites, high temperature resistantly can not be out of shape, and have improved the life-span of whole switch, do not adopt any magnetic material, just make whole switch can not be subject to the interference of other electric elements yet.

By above-mentioned to find out, optical filter described in the utility model switches by using motor 301 to drive worm screw 302, worm screw 302 drives two-stage worm gear 303 to rotate and realizes optical filtering bar 304 parallels, described worm gear 303 and worm screw 302 have auto-lock function, good fixing effect after switching, not sliding position, two-stage worm gear 303 is realized and being slowed down, effectively regulate transmission speed and switching dynamics, reduced the resistance while switching, there will not be stuck or cut phenomenon not in place; Described optical filtering bar 304 is used rectangular configuration, assembling is simple, optical filter is linear level and smooth mobile, locate fast accurate more, switching device of optical fiber 3 is fixing with main mount pad 1 by buckle 311 in addition, and described switching device of optical fiber 3 inside are fixedly connected with by integrated connection post 312, save the required copper post of other switch, not only saved cost, and easily dismounting, assembly difficulty reduced.

Above disclosed is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belongs to the scope that the utility model is contained.

Claims

1. a novel filter switch, it is characterized in that, comprise main mount pad, lens mount and switching device of optical fiber, described lens mount is fixedly mounted on main mount pad upper surface, described switching device of optical fiber is fixed by snap below main mount pad, described switching device of optical fiber comprises upper shell, lower house and be arranged on upper shell, changeover module between lower house, described changeover module comprises motor, worm screw, worm gear, the optical filtering bar of rectangle and be arranged on two optical filters on optical filtering bar, described optical filtering bar edge has tooth bar, described worm screw end has helical tooth, the tooth bar of the gear teeth of described worm gear and optical filtering bar, the helical tooth of worm screw meshes respectively, thereby described driven by motor worm and worm wheel rotate the bar that makes to filter and move, realizing optical filter switches.

2. novel filter switch as claimed in claim 1, it is characterized in that, described worm gear adopts two-stage worm gear, comprises upper and lower integrated fixing small gear and large worm gear, the tooth bar of described optical filtering bar and the tooth mesh of small gear, the tooth mesh of the helical tooth of described worm screw and large worm gear.

3. as claim 1 or novel filter switch claimed in claim 2, it is characterized in that, the lower house of described switching device of optical fiber is provided with joint pin, described worm gear central authorities have axis hole, described joint pin is fixed on upper shell through axis hole, realizes the integrated fixing of switching device of optical fiber.

4. novel filter switch as claimed in claim 1, it is characterized in that, on the lower house of described switching device of optical fiber, have two draw runners, the two ends of described optical filtering bar have two chutes, the mutual chimeric formation slide assemblies of described chute and draw runner, described optical filtering bar is realized fixing and is slided by slide assemblies.

5. novel filter switch as claimed in claim 1, is characterized in that, the surrounding of described main mount pad is mutual nested 8 double-screw bolts that are provided with for fixation also.