CN203241604U - Focusing mechanism of monitor lens - Google Patents
Focusing mechanism of monitor lens Download PDFInfo
- Publication number
- CN203241604U CN203241604U CN201320250427.8U CN201320250427U CN203241604U CN 203241604 U CN203241604 U CN 203241604U CN 201320250427 U CN201320250427 U CN 201320250427U CN 203241604 U CN203241604 U CN 203241604U
- Authority
- CN
- China
- Prior art keywords
- camera lens
- supporting seat
- adjusting mechanism
- focus adjusting
- turning set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a focusing mechanism of a monitor lens. The mechanism comprises a support base. The center of the support base is provided with a round though hole that is passed through by a rotating sleeve. The center sleeve of the rotating sleeve is provided with a lens connection sleeve. The periphery of the rotating sleeve is provided with at least one spiral guiding hole. The inner wall of the round through hole is provided with at least one axial strip guiding groove. The outer side of the support base is provided with a driving gear. The end part of the rotating sleeve is provided with a driven gear that is in fit with the driving gear. The lens connection sleeve is radially fixed by a guiding nail. One end of the guiding nail passes through the spiral guiding hole and in fit with the guiding groove. Preferably, the periphery of the rotating sleeve is provided with three spiral guiding holes, and the inner wall of the round through hole is uniformly provided with three axial strip guiding grooves. The driving gear is connected with a stepping motor by a deceleration mechanism fixed with the support base. The mechanism is convenient to focus, enables automatic focusing of the monitor lens with relatively high focusing precision.
Description
Technical field
The utility model relates to the focus adjusting mechanism of camera lens, especially a kind of focus adjusting mechanism of monitoring camera.
Background technology
The focusing mode of traditional monitoring camera as shown in Figure 1, a supporting seat 1a and video camera are set to be fixed, centre at supporting seat 1a is provided with through hole, the inside surface of through hole is provided with internal thread and matches with the external thread of camera lens 100, the distance of adjusting camera lens 100 and video camera CCD by turn camera lens 100 realizes focusing, but this focusing way inconvenient operation and can't realize automatic focusing, be subjected to simultaneously the ridge distance to affect its focusing accuracy lower.
Disclosing a patent No. on January 10th, 2007 is that ZL200510016933.0, name are called the patent of invention of " camera focusing mechanism ", it comprises motor, electric machine support, screw mandrel, screw, microscope base, housing, elastic plate, camera lens, elastic baffle, adjusting pad, utilize screw mandrel screw focusing mode, the gyration of motor shaft is converted into rectilinear motion, utilize elastic plate that microscope base and housing are linked up, the microscope base that makes the screw mandrel screw promote to be fixed together with camera lens produces displacement, carries out the focusing of camera.Although this mechanism can realize the automatic focusing of camera lens, structure is comparatively complicated, and manufacturing cost is high, is not suitable for the automatic focusing of monitoring camera.
The utility model content
The technical problems to be solved in the utility model provides a kind of focus adjusting mechanism of monitoring camera, and is simple in structure, and focusing is convenient, can realize the automatic focusing of monitoring camera, and focusing accuracy is higher.
For achieving the above object, the technical solution of the utility model is: a kind of focus adjusting mechanism of monitoring camera, comprise supporting seat, the centre of supporting seat is provided with manhole, cover has a turning set in the described manhole, the intermediate sleeve of turning set has the camera lens adapter sleeve of an assembling camera lens, turning set is provided with at least one spirality pilot hole at outer peripheral face, the inwall of described manhole is provided with the strip gathering sill that distributes at least vertically, driving gear is equipped with in the outside of supporting seat, the end of turning set is provided with follower gear and matches with described driving gear, described camera lens adapter sleeve radially is fixed with guide pin, and an end of described guide pin passes the spirality pilot hole and matches with described gathering sill.
Preferred described turning set is evenly equipped with three spirality pilot holes along outer peripheral face, the inner wall even distribution of described manhole has three axial strip gathering sills, described camera lens adapter sleeve has three guide pins along footpath shape lock, and three guide pins pass respectively strip gathering sill corresponding on three spirality pilot holes and the described manhole inwall and match.So that moving axially of camera lens adapter sleeve is steady, right alignment is better.
Further improve, described strip gathering sill is provided with the guide pin pilot hole that is communicated with the supporting seat outside.Make things convenient for the assembling of guide pin.
Further improve, described camera lens adapter sleeve radially is provided with threaded hole and matches with guide pin.Make things convenient for guide pin and camera lens adapter sleeve to fix.
Further improve, described driving gear is by being connected with stepper motor with reducing gear that supporting seat fixes.Can more accurately adjust the focal length of camera lens, and the convenient automatic focusing of realizing.
The inside surface of preferred described camera lens adapter sleeve is provided with the internal thread with camera lens assembling usefulness.To make things convenient for the assembling of camera lens.
Further improve, the edge of described supporting seat is provided with a plurality of mounting holes or is provided with the assembling screw thread in the rear end of described supporting seat.Make things convenient for the assembling of supporting seat and video camera.
The utility model is because guide pin can only be moved by the spacing of strip gathering sill vertically, guide pin and camera lens adapter sleeve fix, camera lens is contained on the camera lens adapter sleeve, and guide pin passes again the spirality pilot hole on the turning set, like this when the follower gear on the driving gear driving turning set rotates, because follower gear and turning set are connected as a single entity, the rotation of follower gear is just so that the driving of the spirality pilot hole on turning set guide pin is mobile vertically, camera lens is just followed guide pin and is axially moved, therefore the rotation by the control driving gear just can realize the automatic or manual focusing, it is more convenient to focus, and one-piece construction is also simpler; The displacement of camera lens is to cooperate to realize that by the spirality pilot hole on the turning set it can realize very trickle adjustment with guide pin in addition, and focusing accuracy is higher.
Description of drawings
Fig. 1 is a kind of focus adjusting mechanism of conventional lenses;
Fig. 2 is the utility model stereographic map;
Fig. 3 is the utility model vertical view;
Fig. 4 is the A-A cut-open view of Fig. 3;
Fig. 5 is the utility model supporting seat stereographic map;
Fig. 6 is the utility model turning set stereographic map;
Fig. 7 is the utility model camera lens adapter sleeve stereographic map;
Fig. 8 is the stereo amplification figure of the utility model guide pin;
Fig. 9 is the stereographic map of the utility model the second embodiment.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the utility model is described in further detail.
Embodiment one, Fig. 1 is to shown in Figure 8, a kind of focus adjusting mechanism of monitoring camera, comprise supporting seat 1, the centre of supporting seat 1 is provided with manhole 11, cover has a turning set 2 in the described manhole 11, the intermediate sleeve of turning set 2 has the camera lens adapter sleeve 3 of an assembling camera lens 100, turning set 2 is evenly equipped with three spirality pilot holes 21 along outer peripheral face, the inner wall even distribution of described manhole 11 has three axial strip gathering sills 111, driving gear 4 is equipped with in the outside of supporting seat 1, described driving gear 4 is by being connected with stepper motor 6 with reducing gear 5 that supporting seat 1 fixes, and the end of turning set 2 is provided with follower gear 22 and matches with described driving gear 4;
Described camera lens adapter sleeve 3 has 7, three guide pins 7 of three guide pins to pass respectively strip gathering sill 111 corresponding on three spirality pilot holes 21 and described manhole 11 inwalls along footpath shape lock to match;
Described strip gathering sill 111 is provided with the guide pin pilot hole 112 that is communicated with supporting seat 1 outside.
Described camera lens adapter sleeve 3 radially is provided with threaded hole 31 and matches with guide pin 7.
The inside surface of camera lens adapter sleeve 3 also is provided with the internal thread 32 with camera lens 100 assembling usefulness.
The edge of described supporting seat 1 is provided with a plurality of mounting holes 12, is easily installed on the video camera.
Embodiment two, shown in Figure 9, they are different from embodiment one is that the rear end of described supporting seat 1 is provided with assembling screw thread 13, video camera convenient and with internal thread interface matches.
Principle of work of the present utility model is: the end of guide pin 7 can only be moved by the spacing of strip gathering sill 111 vertically, guide pin 7 fixes with camera lens adapter sleeve 3, camera lens 100 is contained on the camera lens adapter sleeve 3, and guide pin 7 passes the spirality pilot hole 21 on the turning set 2, the follower gear 22 that drives on turning set 2 ends when driving gear 4 rotates, it is mobile vertically that spirality pilot hole 21 on the turning set 2 just drives guide pin 7, therefore camera lens 100 is just followed guide pin 7 and is axially moved the focusing of realization automatic or manual.
Below only be preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection domain of this case.
Claims (8)
1. the focus adjusting mechanism of a monitoring camera, comprise supporting seat, the centre of supporting seat is provided with manhole, it is characterized in that: cover has a turning set in the described manhole, the intermediate sleeve of turning set has the camera lens adapter sleeve of an assembling camera lens, turning set is provided with at least one spirality pilot hole at outer peripheral face, the inwall of described manhole is provided with the strip gathering sill that distributes at least vertically, driving gear is equipped with in the outside of supporting seat, the end of turning set is provided with follower gear and matches with described driving gear, described camera lens adapter sleeve radially is fixed with guide pin, and an end of described guide pin passes the spirality pilot hole and matches with described gathering sill.
2. the focus adjusting mechanism of a kind of monitoring camera according to claim 1, it is characterized in that: described turning set is evenly equipped with three spirality pilot holes along outer peripheral face, the inner wall even distribution of described manhole has three axial strip gathering sills, described camera lens adapter sleeve has three guide pins along footpath shape lock, and three guide pins pass respectively strip gathering sill corresponding on three spirality pilot holes and the described manhole inwall and match.
3. the focus adjusting mechanism of a kind of monitoring camera according to claim 1 is characterized in that: described strip gathering sill is provided with the guide pin pilot hole that is communicated with the supporting seat outside.
4. the focus adjusting mechanism of a kind of monitoring camera according to claim 1, it is characterized in that: described camera lens adapter sleeve radially is provided with threaded hole and matches with guide pin.
5. the focus adjusting mechanism of a kind of monitoring camera according to claim 1 is characterized in that: described driving gear is by being connected with stepper motor with reducing gear that supporting seat fixes.
6. the focus adjusting mechanism of a kind of monitoring camera according to claim 1 is characterized in that: the inside surface of described camera lens adapter sleeve is provided with the internal thread with camera lens assembling usefulness.
7. according to claim 1 to the focus adjusting mechanism of 6 each described a kind of monitoring cameras, it is characterized in that: the edge of described supporting seat is provided with a plurality of mounting holes.
8. according to claim 1 to the focus adjusting mechanism of 6 each described a kind of monitoring cameras, it is characterized in that: the rear end of described supporting seat is provided with the assembling screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320250427.8U CN203241604U (en) | 2013-05-10 | 2013-05-10 | Focusing mechanism of monitor lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320250427.8U CN203241604U (en) | 2013-05-10 | 2013-05-10 | Focusing mechanism of monitor lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241604U true CN203241604U (en) | 2013-10-16 |
Family
ID=49318885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320250427.8U Withdrawn - After Issue CN203241604U (en) | 2013-05-10 | 2013-05-10 | Focusing mechanism of monitor lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217856A (en) * | 2013-05-10 | 2013-07-24 | 厦门力鼎光电技术有限公司 | Focusing mechanism of monitoring lens |
-
2013
- 2013-05-10 CN CN201320250427.8U patent/CN203241604U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217856A (en) * | 2013-05-10 | 2013-07-24 | 厦门力鼎光电技术有限公司 | Focusing mechanism of monitoring lens |
| CN103217856B (en) * | 2013-05-10 | 2016-07-06 | 厦门力鼎光电技术有限公司 | A kind of focus adjusting mechanism of monitoring camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20160706 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |