CN101299128A - Electric control lens cap with self-locking function - Google Patents
Electric control lens cap with self-locking function Download PDFInfo
- Publication number
- CN101299128A CN101299128A CNA2008100479985A CN200810047998A CN101299128A CN 101299128 A CN101299128 A CN 101299128A CN A2008100479985 A CNA2008100479985 A CN A2008100479985A CN 200810047998 A CN200810047998 A CN 200810047998A CN 101299128 A CN101299128 A CN 101299128A
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- sheave
- self
- driving
- lens cap
- finger
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Abstract
The present invention relates to an electric-controlled lens cover which is used in the field of optical device and has a self-locking function. The electric-controlled lens cover comprises a lens cover and a driving cabinet. The lens cover is connected with the output axis of the driving cabinet through a rock arm. The difference is that the driving cabinet comprises a cabinet and a self-locking driving device provided in the cabinet. The self-locking driving device comprises a grooved pulley pin self-locking mechanism which is connected with the output axis. The driving input end of the grooved pulley pin self-locking mechanism is connected with the driving motor through the transmission chain. The electric-controlled lens according to the invention has the following beneficial effects: 1. switching and self-locking realized by the electric-controlled cover of grooved pulley pin self-locking mechanism, resistance to the strong exterior shake, strong self-locking function, high using reliability, effective prevention for the entering of wind, rain, sand and dust into the lens when the lens cover is closed, lens protection; 2, simple and compact structure, reasonable arrangement, facility for matching with the optical camera-shooting device and the photograph-taking device; and 3. excellent overload protection function.
Description
Technical field
The present invention relates to a kind of electric control lens cap that optical instrument field has auto-lock function that is used for, this lens cap is particularly useful for being in the camera lens in high-altitude or being in the camera camera lens that wind and rain sand and dust and high vibration environment are arranged for a long time.
Background technology
At present, it is more and more to be in high-altitude and the camera lens in wind and rain sand and dust or high vibration environment, pollutes for the sharpness that keeps camera lens and len reduce, and need install lens cap on camera lens, so that be effectively protected when camera lens is not used.Had the lens cap that some can be opened automatically and cover in the prior art, but the lens cap of these automatic foldings not only structure is comparatively complicated, and mostly do not possess the switch auto-lock function, thereby influence the use effect of lens cap.
Summary of the invention
Technical matters to be solved by this invention is the deficiency that exists at prior art and a kind of electric control lens cap with auto-lock function is provided that it is not only simple and compact for structure, and auto-lock function is strong, the dependability height.
The present invention for the technical scheme that problem adopted of the above-mentioned proposition of solution is: include lens cap and drive cabinet, lens cap links to each other with driving cabinet output shaft by its rocking arm, its difference is that described driving machine case comprises cabinet and the self-locking drive unit that is installed in the cabinet, described self-locking drive unit comprises the sheave finger self-locking mechanism that links to each other with output shaft, and the driving input end of sheave finger self-locking mechanism links to each other with drive motor by driving-chain.
Press such scheme, described sheave finger self-locking mechanism comprise sheave and with the finger dish of sheave phase configuration, described sheave is along circumferential uniform 4 straight troughs radially, and offer 4 circular arc concave surfaces in periphery, be installed on 1 finger on the described finger dish and be provided with circular arc concave surface phase configuration on dial cambered surface and the sheave, make sheave under the driving of finger dish, can rotate forward and reverse intermittence, and drive the lens cap upset by output shaft.
Press such scheme, described driving-chain is the gear reduction driving-chain, is provided with overload protecting mechanism in driving-chain.
Press such scheme, described output shaft one end is installed on limited block, and the configuration limit switch, makes sheave can rotate 0 °～270 ° forward and reverse intermittence under the driving of finger dish, and drives 0 °～270 ° of lens cap upsets by output shaft.
The course of work of the present invention is: when needs are opened lens cap, the drive motor rotation makes the finger dish rotate counterclockwise the drive sheave and turns clockwise, finger successively enters three radially straight troughs continuously, realize the upset of 0 °～270 ° of sheaves, make lens cap turn to 270 ° by rocking arm, the output shaft limited block touches limit switch, and limit switch transmits signal stops operating motor; Circuit control simultaneously can only be reversed motor next time; Because sheave finger self-locking mechanism has the self-locking cambered surface, so when motor stall or outage, extraneous power or high vibration all can not make lens cap leave 270 ° of positions, thus self-locking after lens cap is opened; When camera lens is finished using need close lens cap the time, the drive motor counter-rotating makes the lens cover plate upset be returned to 0 ° of position, it is same because Geneva mechanism has self-locking feature, when motor stall or outage, extraneous power or high vibration all can not make lens cap leave 0 ° of position, thus self-locking after lens cap is closed.The effect of overload protecting mechanism can be avoided damaging by the protective glass skull under the situation of automatically controlled inefficacy.
The invention has the beneficial effects as follows: 1, utilize sheave finger self-locking mechanism electric control lens cap to realize switch and self-locking, resist extraneous high vibration, auto-lock function is strong, the dependability height; After closing, lens cap can stop effectively that the wind and rain sand and dust enter camera lens, reach the purpose of len; 2, simple and compact for structure, be provided with rationally, be convenient to use with optics shooting and camera installation configuration; 3, has good overload protection performance.
Description of drawings
Fig. 1 is the front elevation of one embodiment of the invention.
Fig. 2 is the stereographic map of one embodiment of the invention.
Fig. 3 is the cut-open view of bowing of Fig. 1.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the partial enlarged drawing of facing of wheel finger self-locking mechanism in the one embodiment of the invention.
Fig. 6 looks local amplification stereogram for the rear flank of wheel finger self-locking mechanism in the one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further.Include the lens cap 6 of band rocking arm and drive cabinet, lens cap links to each other with driving cabinet output shaft 22 by its rocking arm, described driving machine case comprises cabinet 3 and the self-locking drive unit that is installed in the cabinet, and the both sides of cabinet dispose forward and backward cover plate 12,14, and there is end casing 1 termination; Described self-locking drive unit comprises the sheave finger self-locking mechanism that links to each other with output shaft, sheave finger self-locking mechanism comprise sheave 5 and with the finger dish 4 of sheave phase configuration, described sheave is along circumferential uniform 4 straight troughs 24 radially, and offer 4 circular arc concave surfaces 25 in periphery, be installed on 1 finger 26 on the described finger dish, radially straight trough phase configuration on finger and the sheave, the finger end face of finger dish also is provided with circular arc concave surface 25 phase configuration on dial cambered surface 27 and the sheave, be installed on limited block 7 at output shaft one end, and configuration limit switch 23, make sheave under the driving of finger dish, can rotate 0 °～270 ° forward and reverse intermittence, and by 0 °～270 ° of output shaft drive lens cap upsets, limited block touches limit switch after rotating 270 °, thereby limit switch transmit button signal controlling and driving motor reaches automatically controlled purpose.Fit at 0 ° and 270 ° of position circular arc concave surfaces and finger dish cambered surface simultaneously, sheave is fixed can not rotate, and possesses auto-lock function, also is position of the switch self-locking.Sheave 5 is installed in the other end of output shaft 22, one end of sheave is provided with supported hole 29 and clutch slot 28, combine by clutch key on clutch slot and the output shaft or bearing pin, reach clutch function, the other end of sheave is provided with support guide axle 30, suit retracing spring 9 and axle head and drawing knob 8 link on the support guide axle, constitute manual sheave arrangement of clutch thus, under the situation of automatically controlled inefficacy, drawing and rotate manual sheave arrangement of clutch and can make sheave endwisely slip certain distance along sheave after, the circular arc concave surface of sheave and finger dish cambered surface are separated, and manually dial the tilting mirror skull; Unclamp the drawing knob and a little the rotation cambered surface of sheave and finger dish is closed, be reduced to motoring condition.The driving input end of sheave finger self-locking mechanism links to each other with drive motor 2 by driving-chain.Described driving-chain is the gear reduction driving-chain, the gear reduction driving-chain can be made of the tertiary gear pair, comprise the first order, the second level and third level gear pair, wherein first order gear pair comprises motor gear 13 and driven gear 15, second level gear pair comprises gear shaft 11 and reduction gearing 10, third level gear pair comprises backgear axle 17, mesomerism gear 18 and gear wheel 20, mesomerism gear is installed on the axle 19, the driven gear 15 of first order gear pair is sleeved on the other end of gear shaft 11, and configuration overload protecting mechanism 16, overload protecting mechanism is by friction shim, stage clip and clamping nut are formed, when load is excessive, overload protecting mechanism is had an effect, and makes motor idle running reach the overload protection purpose; The gear wheel 20 and the finger disk drive shaft 21 of third level gear pair link, and the finger disk drive shaft also is the driving input end of sheave finger self-locking mechanism.
Claims (6)
1. electric control lens cap with auto-lock function, include lens cap and drive cabinet, lens cap links to each other with driving cabinet output shaft by its rocking arm, it is characterized in that described driving machine case comprises cabinet and the self-locking drive unit that is installed in the cabinet, described self-locking drive unit comprises the sheave finger self-locking mechanism that links to each other with output shaft, and the driving input end of sheave finger self-locking mechanism links to each other with drive motor by driving-chain.
2. by the described electric control lens cap of claim 1 with auto-lock function, it is characterized in that described sheave finger self-locking mechanism comprise sheave and with the finger dish of sheave phase configuration.
3. by the described electric control lens cap of claim 2 with auto-lock function, it is characterized in that described sheave is along circumferential uniform 4 straight troughs radially, and offer 4 circular arc concave surfaces in periphery, be installed on 1 finger on the described finger dish and be provided with circular arc concave surface phase configuration on dial cambered surface and the sheave, make sheave under the driving of finger dish, can rotate forward and reverse intermittence, and drive the lens cap upset by output shaft.
4. by claim 1 or 2 described electric control lens caps, it is characterized in that described driving-chain is the gear reduction driving-chain, is provided with overload protecting mechanism in driving-chain with auto-lock function.
5. by the described electric control lens cap of claim 3 with auto-lock function, it is characterized in that described output shaft one end is installed on limited block, and configuration limit switch, make sheave under the driving of finger dish, can rotate 0 °～270 ° forward and reverse intermittence, and drive 0 °～270 ° of lens cap upsets by output shaft.
6. by claim 2 or 3 described electric control lens caps with auto-lock function, it is characterized in that sheave is installed in the other end of output shaft, one end of sheave is provided with supported hole and clutch slot, combine by clutch key on clutch slot and the output shaft or bearing pin, reach clutch function, the other end of sheave is provided with the support guide axle, and suit retracing spring and axle head and drawing knob link on the support guide axle, constitutes manual sheave arrangement of clutch thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100479985A CN101299128B (en) | 2008-06-12 | 2008-06-12 | Electric control lens cap with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100479985A CN101299128B (en) | 2008-06-12 | 2008-06-12 | Electric control lens cap with self-locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101299128A true CN101299128A (en) | 2008-11-05 |
| CN101299128B CN101299128B (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100479985A Expired - Fee Related CN101299128B (en) | 2008-06-12 | 2008-06-12 | Electric control lens cap with self-locking function |
Country Status (1)
| Country | Link |
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| CN (1) | CN101299128B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120050854A1 (en) * | 2010-09-01 | 2012-03-01 | Capon Robert S | Remote controlled telescope cleaning system for small telescopes |
| CN102981236A (en) * | 2012-12-25 | 2013-03-20 | 中国科学院长春光学精密机械与物理研究所 | Anti-release lens sealing device |
| CN103294080A (en) * | 2013-05-02 | 2013-09-11 | 中国科学院长春光学精密机械与物理研究所 | Temperature correction and control system of optical measurement equipment infrared camera |
| CN106487157A (en) * | 2015-09-01 | 2017-03-08 | 北京自动化控制设备研究所 | A kind of track in actuator |
| CN107783355A (en) * | 2017-10-21 | 2018-03-09 | 湖南华南光电(集团)有限责任公司 | A kind of infrared double-view field fast switch type camera lens |
-
2008
- 2008-06-12 CN CN2008100479985A patent/CN101299128B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120050854A1 (en) * | 2010-09-01 | 2012-03-01 | Capon Robert S | Remote controlled telescope cleaning system for small telescopes |
| CN102981236A (en) * | 2012-12-25 | 2013-03-20 | 中国科学院长春光学精密机械与物理研究所 | Anti-release lens sealing device |
| CN103294080A (en) * | 2013-05-02 | 2013-09-11 | 中国科学院长春光学精密机械与物理研究所 | Temperature correction and control system of optical measurement equipment infrared camera |
| CN106487157A (en) * | 2015-09-01 | 2017-03-08 | 北京自动化控制设备研究所 | A kind of track in actuator |
| CN106487157B (en) * | 2015-09-01 | 2019-01-15 | 北京自动化控制设备研究所 | A kind of track in executing agency |
| CN107783355A (en) * | 2017-10-21 | 2018-03-09 | 湖南华南光电(集团)有限责任公司 | A kind of infrared double-view field fast switch type camera lens |
| CN107783355B (en) * | 2017-10-21 | 2020-08-28 | 湖南华南光电(集团)有限责任公司 | Infrared double-view-field quick switching type lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101299128B (en) | 2010-07-14 |
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Granted publication date: 20100714 Termination date: 20160612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |