CN104635314A - Driving and auto-locking mechanism of lens - Google Patents
Driving and auto-locking mechanism of lens Download PDFInfo
- Publication number
- CN104635314A CN104635314A CN201410750827.4A CN201410750827A CN104635314A CN 104635314 A CN104635314 A CN 104635314A CN 201410750827 A CN201410750827 A CN 201410750827A CN 104635314 A CN104635314 A CN 104635314A
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- CN
- China
- Prior art keywords
- group
- self
- driving
- locking mechanism
- locking
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Abstract
The invention discloses a driving and auto-locking mechanism of a monitor lens. The technical scheme includes that the driving and auto-locking mechanism comprises a fixed group fixed on the lens, guide rods are arranged on the fixed group, a zooming group capable of reciprocating along the guide rods is arranged on one side of the fixed group, and the driving and auto-locking mechanism capable of driving the zooming group to move is arranged between the zooming group and the fixed group. A driving mechanism body comprises motors, drive screws and group connection components, the motors are fixed on the fixed group, the drive screws are connected with output shafts of the motors, and the group connection components are arranged on the zooming group or a focusing group and used for connecting the zooming group or the focusing group with the drive screws. An auto-locking mechanism body comprises auto-locking nuts which are meshed with external threads of drive nuts and fixedly connected with connection blocks. The driving and auto-locking mechanism has the advantages that by means of adding the auto-locking nuts on the drive nuts, the zooming group and the focusing group can be automatically locked after moving to assigned positions, so that the zooming group and the focusing group suffering from external shock can be protected from deviating forwards or backwards by the aid of the auto-locking nuts.
Description
[technical field]
The present invention relates to a kind of mechanical mechanism of monitoring camera, especially relate to a kind of driving and self-locking mechanism of monitoring camera.
[background technology]
Existing monitoring camera generally only has driving mechanism, there is no self-locking mechanism, the precision of transmission can only be ensured, the stability after zoom group and focusing group stopping can not being ensured, do not have the camera lens of self-locking mechanism, when camera lens is subject to suddenly foreign impacts power time, zoom group and focusing group can slide on motor driven screw rod with transmission nut, the position of zoom group and focusing group can be caused to depart from, thus the precision affecting camera lens even may cause the damage of camera lens.
[summary of the invention]
The present invention seeks to overcome the deficiencies in the prior art, provide a kind of and not only there is the mechanism that driving mechanism can also can realize the monitoring camera of self-locking after arriving assigned address.
The present invention is achieved by the following technical solutions:
A kind of driving of camera lens and self-locking mechanism, it is characterized in that: comprise the group of stability 1 be fixed on camera lens, described group of stability 1 is provided with guide pole 2, the zoom group 3 that can move back and forth along described guide pole 2 is provided with in the side of described group of stability 1, the driving and self-locking mechanism that drive described zoom group 3 to move is provided with between described zoom group 3 and described group of stability 1, the focusing group 4 that can move back and forth along described guide pole 2 is provided with at the opposite side of described group of stability 1, also another driving and self-locking mechanism of driving focusing group 4 to move is provided with between described zoom group 3 and described group of stability 1, described driving mechanism comprises the motor 5 be fixed on described group of stability 1, the drive screw 6 be connected with motor 5 output shaft and the group's coupling assembling be located at for it is connected with drive screw 6 on described zoom group 3 or the group 4 that focuses, described group's coupling assembling comprises contiguous block 7 and is enclosed within the transmission nut 8 be connected on described drive screw 6 and with described contiguous block 7, described self-locking mechanism comprises and engaging and the self-locking nut 9 be fixedly connected with described contiguous block 7 with described transmission nut 8 external thread.
The driving of camera lens described above and self-locking mechanism, it is characterized in that: described zoom group 3 and focusing group 4 are equipped with for described guide pole 2 through with the orientating box 13 of guiding, described contiguous block 7 is located on described orientating box 13, described contiguous block 7 comprises two pieces of parallel web joints be fixed on orientating box 13, two described web joints are provided with two relative connecting holes 11, the lower end of described transmission nut 8 is provided with the connecting hole 11 of insertion described in connection two with the connecting link 801 fixing with described contiguous block 7, described self-locking nut 9 is provided with the internal thread engaging with described transmission nut 8 external thread and prevent camera lens to be moved by zoom group during foreign impacts 3 and group 4 position of focusing.
The driving of camera lens described above and self-locking mechanism, it is characterized in that: the upper end of described transmission nut 8 is provided with the U-shaped opening 805 coordinated with described drive screw 6, in described U-shaped opening 805, side is provided with the main thread 802 with the screw-threaded engagement on described drive screw 6, opposite side in described U-shaped opening 805 is provided with elasticity thread 803, and described elasticity thread 803 both sides are provided with the secondary thread 804 for correcting.
The driving of camera lens described above and self-locking mechanism, is characterized in that: the orientating box 13 on described zoom group 3 is integrated part with described zoom group 3, and the orientating box 13 on described focusing group 4 is integrated part with the described group 4 that focuses.
The driving of camera lens described above and self-locking mechanism, is characterized in that: described connecting link 801 stretches out described connecting hole 11 by that end of described group of stability 1, and the lower end of described self-locking nut 9 is provided with the slot be connected with described connecting link 801 extension.
The driving of camera lens described above and self-locking mechanism, is characterized in that: described contiguous block 7 is provided with plug 12, and the lower end of described self-locking nut 9 is provided with the slot be connected with described plug 12.
Lens driving as above and self-locking mechanism, is characterized in that: the both sides of described contiguous block 7 are provided with the self-locking nut 9 described in two, and described connecting link 801 other end also stretches out described connecting hole 11 and is connected with the slot of another self-locking nut 9.
The driving of camera lens described above and self-locking mechanism, is characterized in that: the both sides of described contiguous block 7 are provided with the self-locking nut 9 described in two, the plug 12 that the slot that the both sides of described contiguous block 7 are respectively equipped with the described self-locking nut 9 with two is connected.
The driving of camera lens described above and self-locking mechanism, is characterized in that: on described orientating box 13 and group of stability 1, correspondence is provided with between angle button 14, two jiaos of buttons 14 and is connected with extension spring 15.
Lens driving as above and self-locking mechanism, is characterized in that: described transmission nut 8 is made up of plastic cement material, and described elasticity thread 803 and described secondary thread 804 are not at grade.
Compared with prior art, the present invention has the following advantages:
1, the driving of camera lens of the present invention and self-locking mechanism by increasing self-locking nut on transmission nut; make zoom group and focusing group can self-locking after moving to assigned address; zoom group can not be departed from forward or backward with the protection of focusing group when being subject to foreign impacts because of self-locking nut again, ensure that the stability after zoom group and focusing group stopping.
2, self-locking nut of the present invention arranges an internal thread be engaged with drive screw external thread by upper end, lower end and contiguous block are connected and fix with zoom group or the group that focuses, thus realize auto-lock function, can move with transmission nut again when drive screw rotates simultaneously, structure is simple, and practicality is very strong.
3, the driving of camera lens of the present invention and self-locking mechanism except self-locking nut is set also at zoom group and group of stability, be also provided with extension spring between focusing group and group of stability, further ensure zoom group and focusing group stop after stability.
4, transmission nut volume of the present invention is little, more easily meet the structural design of Zoom optic lens, for the structural design of camera lens saves space, adopt U-shaped hatch frame simultaneously, the processing of convenient more fine pitch size and less form of thread, improve the quality of fit of pass on Gong nut and drive screw, the position of Zoom optic lens is moved more careful, more accurate, improve the optical property of whole Zoom optic lens.
[accompanying drawing explanation]
Fig. 1 is stereographic map of the present invention;
Fig. 2 is exploded view of the present invention;
Fig. 3 is the stereographic map of transmission nut of the present invention;
Fig. 4 is the stereographic map of camera lens transmission of the present invention and self-locking structure embodiment one;
Fig. 5 is the stereographic map of camera lens transmission of the present invention and self-locking structure embodiment two;
Fig. 6 is the stereographic map of camera lens transmission of the present invention and self-locking structure embodiment three;
Fig. 7 is the stereographic map of camera lens transmission of the present invention and self-locking structure embodiment four.
In figure; 1 is group of stability; 2 is guide pole; 3 is zoom group; 4 is focusing group; 5 is motor; 6 is drive screw; 7 is contiguous block; 8 is transmission nut; 801 is connecting link; 802 is main thread; 803 is elasticity thread; 804 is secondary thread; 805 is U-shaped opening; 9 is self-locking nut; 10 is internal thread; 11 is connecting hole; 12 is plug; 13 is orientating box; 14 is angle button; 15 is extension spring; 16 is screw via hole.
[embodiment]
Below in conjunction with accompanying drawing, the invention will be further described:
A kind of driving of camera lens and self-locking mechanism, comprise the group of stability 1 be fixed on camera lens, described group of stability 1 is provided with guide pole 2, the zoom group 3 that can move back and forth along described guide pole 2 is provided with in the side of described group of stability 1, the driving and self-locking mechanism that drive described zoom group 3 to move is provided with between described zoom group 3 and described group of stability 1, the focusing group 4 that can move back and forth along described guide pole 2 is provided with at the opposite side of described group of stability 1, also another driving and self-locking mechanism of driving focusing group 4 to move is provided with between described zoom group 3 and described group of stability 1, described driving mechanism comprises the motor 5 be fixed on described group of stability 1, the drive screw 6 be connected with motor 5 output shaft and the group's coupling assembling be located at for it is connected with drive screw 6 on described zoom group 3 or the group 4 that focuses, described group's coupling assembling comprises contiguous block 7 and is enclosed within the transmission nut 8 be connected on described drive screw 6 and with described contiguous block 7, described self-locking mechanism comprises and engaging and the self-locking nut 9 be fixedly connected with described contiguous block 7 with described transmission nut 8 external thread.
Described zoom group 3 and focusing group 4 are equipped with for described guide pole 2 through with the orientating box 13 of guiding, described contiguous block 7 is located on described orientating box 13, described contiguous block 7 comprises two pieces of parallel web joints be fixed on orientating box 13, two described web joints are provided with two relative connecting holes 11, the lower end of described transmission nut 8 is provided with the connecting hole 11 of insertion described in connection two with the connecting link 801 fixing with described contiguous block 7, described self-locking nut 9 is provided with the internal thread engaging with described transmission nut 8 external thread and prevent camera lens to be moved by zoom group during foreign impacts 3 and group 4 position of focusing, as shown in Figure 2.
The driving of camera lens of the present invention and self-locking mechanism by increasing self-locking nut 9 on transmission nut; make zoom group 3 and focusing group 4 can self-locking after moving to assigned address; and be all provided with self-locking nut 9 in the both sides of contiguous block 7; zoom group 3 can not be departed from forward or backward with the protection of focusing group 4 when being subject to foreign impacts power because of self-locking nut again, ensure that the stability after zoom group 3 and focusing group 4 stopping.
The upper end of described transmission nut 8 is provided with the U-shaped opening 805 coordinated with described drive screw 6, in described U-shaped opening 805, side is provided with the main thread 802 with the screw-threaded engagement on described drive screw 6, opposite side in described U-shaped opening 805 is provided with elasticity thread 803, and described elasticity thread 803 both sides are provided with the secondary thread 804 for correcting.
Described transmission nut 8 is made up of plastic cement material, and described elasticity thread 803 and described secondary thread 804 are not at grade.
Described transmission nut 8 is compared with the transmission nut of common whole circle screwed tooth structure, the transmission nut of common whole circle screwed tooth structure adopts the straight mode demoulding, need rotation limit, thread limit to retreat during depanning, the friction force be subject to during the demoulding is very large, easily causes thread profile coarse; In addition, if thread sizes is too small, the resistance that the thread demoulding is subject to can be larger, causes being difficult to the demoulding.And it is high to generally for raising plastic cement transmission nut precision, need to adopt undersized screwed tooth structure.
Plastic cement transmission nut 8 of the present invention, volume is little, precision is high, worked in coordination with drive screw 6 by the main thread 802 of both sides in U-shaped opening 805 and elasticity thread 803, compared with whole circle thread contact, decrease the surface of contact of main thread 802 and elasticity thread 803 and drive screw 6, reduce the degree of wear of main thread 802 and elasticity thread 803 simultaneously, improve the serviceable life of transmission nut 8, ensure that transmission accuracy.In transmission process, effectively alleviated the vibration of drive screw 6 and transmission nut 8 generation by elasticity thread 803, reduce the mutual wearing and tearing between drive screw 6 and transmission nut 8, improve the stability of the optical property of whole Zoom optic lens.
Self-locking structure of the present invention has following four embodiments.
Embodiment one: described connecting link 801 stretches out described connecting hole 11 by that end of described group of stability 1, and the lower end of described self-locking nut 9 is provided with the slot be connected with described connecting link 801 extension.As shown in Figure 5, be provided with self-locking nut 9 at described contiguous block 7 by motor 5 side and connected by connecting link 801.
Embodiment two: described contiguous block 7 is provided with plug 12, the lower end of described self-locking nut 9 is provided with the slot be connected with described plug 12, as shown in Figure 4, is provided with self-locking nut 9 at described contiguous block 7 and is connected by plug 12 by motor 5 side.
Embodiment three: the both sides of described contiguous block 7 are provided with the self-locking nut 9 described in two, described connecting link 801 other end also stretches out described connecting hole 11 and is connected with the slot of another self-locking nut 9, as shown in Figure 6.
Embodiment four: the both sides of described contiguous block 7 are provided with the self-locking nut 9 described in two, the plug 12 that the slot that the both sides of described contiguous block 7 are respectively equipped with the described self-locking nut 9 with two is connected, as shown in Figure 7.
On described orientating box 13 and group of stability 1, correspondence is provided with between angle button 14, two jiaos of buttons 14 and is connected with extension spring 15, further ensure zoom group 3 and focusing group 4 stop after stability.
The present invention be respectively equipped with in the both sides of described group of stability 1 a zoom group 3 and one focusing group 4, can certainly be provided with multiple zoom group 3 or focusing group 4, its transmission and self-locking structure identical.
Embodiment of the present invention is only the description carried out the preferred embodiment of the present invention; not inventive concept and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in this area, engineering technical personnel make technical scheme of the present invention and improvement, all should fall into protection scope of the present invention.
Claims (10)
1. the driving of a camera lens and self-locking mechanism, it is characterized in that: comprise the group of stability (1) be fixed on camera lens, described group of stability (1) is provided with guide pole (2), the zoom group (3) that can move back and forth along described guide pole (2) is provided with in the side of described group of stability (1), the driving and self-locking mechanism that drive described zoom group (3) to move is provided with between described zoom group (3) and described group of stability (1), the focusing group (4) that can move back and forth along described guide pole (2) is provided with at the opposite side of described group of stability (1), also another driving and self-locking mechanism of driving focusing group (4) to move is provided with between described zoom group (3) and described group of stability (1), described driving mechanism comprises the motor (5) be fixed on described group of stability (1), the drive screw (6) be connected with motor (5) output shaft and the group's coupling assembling be located at for it is connected with drive screw (6) on described zoom group (3) or the group (4) that focuses, described group's coupling assembling comprises contiguous block (7) and is enclosed within described drive screw (6) to be gone up and the transmission nut (8) be connected with described contiguous block (7), described self-locking mechanism comprises and engaging and the self-locking nut (9) be fixedly connected with described contiguous block (7) with described transmission nut (8) external thread.
2. the driving of camera lens and self-locking mechanism according to claim 1, it is characterized in that: described zoom group (3) and focusing group (4) are equipped with for described guide pole (2) through with the orientating box (13) of guiding, described contiguous block (7) is located on described orientating box (13), described contiguous block (7) comprises two pieces of parallel web joints be fixed on orientating box (13), two described web joints are provided with two relative connecting holes (11), the lower end of described transmission nut (8) is provided with the connecting hole (11) of insertion described in connection two with the connecting link (801) fixing with described contiguous block (7), described self-locking nut (9) is provided with the internal thread engaging with described transmission nut (8) external thread and prevent camera lens to be moved by zoom group (3) during foreign impacts and group (4) position of focusing.
3. the driving of camera lens and self-locking mechanism according to claim 2, it is characterized in that: the upper end of described transmission nut (8) is provided with the U-shaped opening (805) coordinated with described drive screw (6), the interior side of described U-shaped opening (805) is provided with the main thread (802) with the screw-threaded engagement on described drive screw (6), opposite side in described U-shaped opening (805) is provided with elasticity thread (803), and described elasticity thread (803) both sides are provided with the secondary thread (804) for correcting.
4. the driving of camera lens and self-locking mechanism according to claim 3, it is characterized in that: the orientating box (13) on described zoom group (3) and described zoom group (3) are integrated part, the orientating box (13) on described focusing group (4) and the described group (4) that focuses are integrated part.
5. the driving of camera lens and self-locking mechanism according to any one of claim 2 to 4, it is characterized in that: described connecting link (801) stretches out described connecting hole (11) by that end of described group of stability (1), the lower end of described self-locking nut (9) is provided with the slot be connected with described connecting link (801) extension.
6. the driving of camera lens and self-locking mechanism according to any one of claim 2 to 4, it is characterized in that: described contiguous block (7) is provided with plug (12), the lower end of described self-locking nut (9) is provided with the slot be connected with described plug (12).
7. lens driving according to claim 5 and self-locking mechanism, it is characterized in that: the both sides of described contiguous block (7) are provided with the self-locking nut (9) described in two, and described connecting link (801) other end also stretches out described connecting hole (11) and is connected with the slot of another self-locking nut (9).
8. the driving of camera lens and self-locking mechanism according to claim 6, it is characterized in that: the both sides of described contiguous block (7) are provided with the self-locking nut (9) described in two, the both sides of described contiguous block (7) are respectively equipped with the plug (12) be connected with the slot of two described self-locking nuts (9).
9. the driving of camera lens and self-locking mechanism according to claim 4, it is characterized in that: described orientating box (13) and the upper correspondence of group of stability (1) are provided with angle button (14), are connected with extension spring (15) between two jiaos of buttons (14).
10. lens driving according to claim 3 and self-locking mechanism, it is characterized in that: described transmission nut (8) is made up of plastic cement material, described elasticity thread (803) and described secondary thread (804) are not at grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750827.4A CN104635314A (en) | 2014-12-09 | 2014-12-09 | Driving and auto-locking mechanism of lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750827.4A CN104635314A (en) | 2014-12-09 | 2014-12-09 | Driving and auto-locking mechanism of lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104635314A true CN104635314A (en) | 2015-05-20 |
Family
ID=53214257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410750827.4A Pending CN104635314A (en) | 2014-12-09 | 2014-12-09 | Driving and auto-locking mechanism of lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104635314A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445233A (en) * | 2018-12-28 | 2019-03-08 | 中山联合光电科技股份有限公司 | A kind of Anti-shaking structure of big focal length long stroke camera lens |
| WO2019083087A1 (en) * | 2017-10-27 | 2019-05-02 | Samyang Optics Co., Ltd | Camera lens assembly |
| CN113448052A (en) * | 2021-07-13 | 2021-09-28 | 中山联合光电研究院有限公司 | Self-locking structure of zoom lens, lens and shooting equipment |
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| JP2009229682A (en) * | 2008-03-21 | 2009-10-08 | Tamron Co Ltd | Lens holding frame, lens driving apparatus and imaging apparatus |
| CN201845118U (en) * | 2010-09-22 | 2011-05-25 | 中山联合光电科技有限公司 | Optical regulation structure capable of optical zoom and auto focusing |
| CN202093229U (en) * | 2011-05-19 | 2011-12-28 | 福建福光数码科技有限公司 | Wide angle high resolution space target detection lens |
| CN103244629A (en) * | 2013-05-10 | 2013-08-14 | 中山联合光电科技有限公司 | Transmission nut high in transmission accuracy |
| CN204241746U (en) * | 2014-12-09 | 2015-04-01 | 中山联合光电科技有限公司 | A kind of driving of camera lens and self-locking mechanism |
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2014
- 2014-12-09 CN CN201410750827.4A patent/CN104635314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009229682A (en) * | 2008-03-21 | 2009-10-08 | Tamron Co Ltd | Lens holding frame, lens driving apparatus and imaging apparatus |
| CN201845118U (en) * | 2010-09-22 | 2011-05-25 | 中山联合光电科技有限公司 | Optical regulation structure capable of optical zoom and auto focusing |
| CN202093229U (en) * | 2011-05-19 | 2011-12-28 | 福建福光数码科技有限公司 | Wide angle high resolution space target detection lens |
| CN103244629A (en) * | 2013-05-10 | 2013-08-14 | 中山联合光电科技有限公司 | Transmission nut high in transmission accuracy |
| CN204241746U (en) * | 2014-12-09 | 2015-04-01 | 中山联合光电科技有限公司 | A kind of driving of camera lens and self-locking mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019083087A1 (en) * | 2017-10-27 | 2019-05-02 | Samyang Optics Co., Ltd | Camera lens assembly |
| CN109445233A (en) * | 2018-12-28 | 2019-03-08 | 中山联合光电科技股份有限公司 | A kind of Anti-shaking structure of big focal length long stroke camera lens |
| CN109445233B (en) * | 2018-12-28 | 2023-07-14 | 中山联合光电科技股份有限公司 | Anti-shake structure of large-focus long-stroke lens |
| CN113448052A (en) * | 2021-07-13 | 2021-09-28 | 中山联合光电研究院有限公司 | Self-locking structure of zoom lens, lens and shooting equipment |
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Application publication date: 20150520 |