CN203350590U - Lens enclasping mechanism and video camera - Google Patents
Lens enclasping mechanism and video camera Download PDFInfo
- Publication number
- CN203350590U CN203350590U CN201320080739.9U CN201320080739U CN203350590U CN 203350590 U CN203350590 U CN 203350590U CN 201320080739 U CN201320080739 U CN 201320080739U CN 203350590 U CN203350590 U CN 203350590U
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- head
- wall thickness
- camera lens
- lens
- fast body
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Abstract
The utility model discloses a lens enclasping mechanism and a video camera. The lens enclasping mechanism comprises a lens base and a locknut; the lens base comprises a cylindrical head; the head comprises at least one groove; each of the grooves extends to an adjacent position of the root end of the head from the tail end of the head in an axial direction; the head also comprises at least one area with gradually variable wall thickness; in the at least one area, the wall thickness of the head gradually increases in a locking direction of a circumferential direction; the locknut is suitable for being sleeved outside the head; and the inner wall is provided with at least one projection in a radial direction. When the locknut is rotated in the locking direction, the at least one projection in the radial direction contacts and imposes pressure in the radial direction on the at least one area with the gradually variable wall thickness, so when the locknut is sleeved on the head and is rotated in the locking direction, force imposed on a plastic lens with different thickness is gradually increased so that the lens is can be fixed. Therefore, a fixation problem of the plastic lens or a plastic lens base without a screw thread can be effectively solved, and cost of a lens fixing structure is remarkably reduced.
Description
Technical field
The utility model relates to technical field of imaging, particularly relates to a kind of camera lens hold-fast body and has the video camera of described camera lens hold-fast body.
Background technology
The camera lens of imaging device can be divided into two kinds, and a kind of is the camera lens be fixed together with imaging device, and another kind is the camera lens that is independent of imaging device.Be independent of the camera lens of imaging device, have advantages of and can change suitable camera lens according to different service conditions.But, in use, camera lens need to be connected to the lens mount of imaging device.
In prior art, the connected mode of camera lens and lens mount mainly contains two kinds.A kind of is that external thread is set on camera lens, and the internal thread matched is set on lens mount, in use, camera lens is screwed to lens mount.This kind of connected mode is because have higher quality of fit between external thread and internal thread, thereby manufacturing cost is higher.The connected mode of camera lens and lens mount is to adopt trip bolt.For example, the mode of current most plastic lens headstock fixed lens is that a working of plastics jaggy is set, and in indentation, there, with screw-driving, one time mode fixes camera lens.This fixed form has and takes up room greatly, and screw easily sliding tooth causes the shortcoming of solid failure.
Therefore, wish a kind of novel camera lens hold-fast body.
The utility model content
The purpose of this utility model is to provide a kind of novel camera lens hold-fast body to overcome or at least alleviates the above-mentioned problems in the prior art.
For achieving the above object, the utility model provides a kind of camera lens hold-fast body, described camera lens hold-fast body comprises lens mount and set nut, described lens mount has the tubular head, described head comprises: at least one groove, the position that described groove closes on to the butt extended to described head from the terminal shaft of described head; And at least one wall thickness gradation zone, in described wall thickness gradation zone, the wall thickness of described head increases gradually along circumferential locking direction, described set nut is suitable for being socketed in outside described head, and there is at least one radial protrusion on inwall, at described set nut, during along described locking direction rotation, described radial protrusion contacts with described wall thickness gradation zone, and described wall thickness gradation zone is applied to radial pressure.
Thereby, at set nut, be socketed on head and during along the locking direction rotation, the plastic lens headstock of wall unevenness is stressed to be increased gradually, thereby reaches the purpose of fixed lens.Like this, will effectively solve plastic lens or without the fixation problem of screw thread plastic lens headstock, and significantly reduce the cost of fixed mechanism and video camera.
Preferably, the inwall of described set nut is the face of cylinder, and described radial protrusion is outstanding from the described face of cylinder towards center.
Preferably, the quantity of described groove is two, and described two grooves are symmetrical arranged with respect to the axis of described head, and the quantity of described wall thickness gradation zone is two, and described two wall thickness gradation zones are symmetrical arranged with respect to the axis of described head.
Preferably, described head has maximum locking spacing preiection in the thickest position of described wall thickness gradation zone, and described maximum locking spacing preiection is radially outward outstanding, and extends axially.
Preferably, described head has the anti-falling limit projection of closing on the head end setting, described anti-falling limit projection is radially outward outstanding, and circumferentially extends, and the distance between the butt of described anti-falling limit projection and described head is more than or equal to the height of described set nut.
Preferably, the axially extended scope of described anti-falling limit projection does not exceed the circumferential scope of described wall thickness gradation zone.
Preferably, described anti-falling limit projection is connected with described maximum locking spacing preiection.
Preferably, the difference of the thickest of described wall thickness gradation zone and minimum wall thickness (MINI W.) 0.2 millimeter with the scope of 2 millimeters within.More preferably, in the scope of 0.5 millimeter to 1.5 millimeters, for example, can be set to 1 millimeter.
Preferably, described maximum locking spacing preiection with respect to the height of the thickest position radial projection of described wall thickness gradation zone within the scope of 0.5 millimeter to 1.5 millimeters.More preferably, in the scope of 0.5 millimeter to 1.5 millimeters, for example, can be set to 1 millimeter.
The utility model also provides a kind of video camera, and described video camera comprises camera lens hold-fast body as above.
The accompanying drawing explanation
Fig. 1 is the front elevational schematic according to the lens mount of the utility model one embodiment.
Fig. 2 is lens mount shown in Fig. 1 along the cross-sectional schematic that in Fig. 1, the C-C line is analysed and observe.
Fig. 3 is the schematic perspective view of lens mount shown in Fig. 1.
Fig. 4 is the schematic perspective view according to the set nut of the utility model one embodiment.
Fig. 5-6th, illustrate the schematic diagram according to the installation process of the camera lens hold-fast body of the utility model one embodiment.
Reference numeral:
| 1 |
21 | |
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| 11 tubular heads | 3 | |
|
| 12 |
4 | |
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| 13 wall thickness gradation zones | A | Snap in a little | |
| 14 maximum locking spacing preiections | | Limit point | |
| 15 anti-falling limit projections | ? | ? | |
| 2 set nuts | ? | ? |
Embodiment
For purpose, technical scheme and advantage that the utility model is implemented is clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label means same or similar element or the element with identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, rather than whole embodiment.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Embodiment based in the utility model; those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and the scope that all belongs to the utility model protection is elaborated to embodiment of the present utility model below in conjunction with accompanying drawing.
In description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
Comprise lens mount and set nut according to the camera lens hold-fast body of an embodiment of the present utility model.Described lens mount has the tubular head, and described head comprises: at least one groove, the position that described groove closes on to the butt extended to described head from the terminal shaft of described head; And at least one wall thickness gradation zone, in described wall thickness gradation zone, the wall thickness of described head increases gradually along circumferential locking direction, described set nut is suitable for being socketed in outside described head, and there is at least one radial protrusion on inwall, at described set nut, during along described locking direction rotation, described radial protrusion contacts with described wall thickness gradation zone, and described wall thickness gradation zone is applied to radial pressure.
Thereby, at set nut, be socketed on head and during along the locking direction rotation, the plastic lens headstock of wall unevenness is stressed to be increased gradually, thereby reaches the purpose of fixed lens.Like this, will effectively solve plastic lens or without the fixation problem of screw thread plastic lens headstock, and significantly reduce the cost of fixed mechanism and video camera.
In the illustrated embodiment, the camera lens hold-fast body comprises lens mount 1 and set nut 2.As shown in Figure 1, lens mount 1 is made with plastics, has tubular head 11, and head 11 comprises two grooves 12, the position that described groove 12 closes on to the butt 113 extended to described head from the terminal shaft of described head.Thereby when the wall of head is subject to the pressure of set nut, easily to internal strain, and extruding is placed on the camera lens connecting portion within head, thereby holds the camera lens connecting portion tightly, thereby can realize fixing camera lens.
The quantity that groove is shown in the drawings is two, but also a groove can be set as required, three grooves or more groove.Two grooves that illustrate in the drawings are symmetrical arranged with respect to the central axis of described head, and the distance of groove center is the angle of 180 degree.When three grooves (distance 120 degree) or more groove, also can be symmetrical arranged.But, it is pointed out that the utility model is not limited to symmetrically arranged scheme, in the situation that two or more groove also can adopt asymmetric scheme, as long as the locking rotating gyration is arranged on to suitable scope.
Referring to Fig. 1 and Fig. 2, head 11 comprises two wall thickness gradation zones 13, and in each wall thickness gradation zone 13, the wall thickness of head increases gradually along circumferential locking direction.As shown in Figure 2, from snapping in an A(, among Fig. 1, be a line) to limit point B, in each wall thickness gradation zone 13, wall thickness increases gradually along the diagram clockwise direction.Two wall thickness gradation zones 13 are symmetrical arranged with respect to the central axis of described head shown in figure 2.When three or more wall thickness gradation zones 13, also can be symmetrical arranged.But, it is pointed out that be symmetrical arranged neither be necessary.Advantageously, groove is identical with the quantity of wall thickness gradation zone 13, thereby design is simpler.
The thickest of wall thickness gradation zone and the difference of minimum wall thickness (MINI W.) can arrange as required.For example 0.2 millimeter with the scope of 3 millimeters within, or 0.2 millimeter with the scope of 2 millimeters within.More preferably, in the scope of 0.5 millimeter to 1.5 millimeters, for example, can be set to 1 millimeter.
As shown in Figure 1, head 11 locates to have maximum locking spacing preiection 14 in the thickest position of described wall thickness gradation zone 13 (limit point B), and described maximum locking spacing preiection is radially outward outstanding, and extends axially.The radial protrusion 21 that the effect of maximum locking spacing preiection 14 is to hinder on set nut 2 further rotates along the locking direction.The extending axially length and can arrange arbitrarily of maximum locking spacing preiection 14, as long as can realize stopping the further locking of radial protrusion 21.
Maximum locking spacing preiection with respect to the height of the thickest position radial projection of described wall thickness gradation zone within the scope of 0.5 millimeter to 1.5 millimeters, or within the scope of 0.2 millimeter to 2 millimeters.For example, can be set to 1 millimeter.
As shown in Figure 1, head 11 has the anti-falling limit projection 15 of closing on the head end setting, and anti-falling limit projection 15 is radially outward outstanding, and circumferentially extends.Distance between the butt of described anti-falling limit projection and described head is more than or equal to the height of described set nut.Advantageously, anti-falling limit projection 15 axially extended scopes do not exceed the circumferential scope of wall thickness gradation zone 13, to avoid hindering set nut being socketed at first on described head.
As shown in Figure 1, advantageously, anti-falling limit projection 15 is connected with maximum locking spacing preiection 15.Thereby can provide intensity preferably.
Referring to Fig. 3, set nut 2 is suitable for being socketed in outside described head, and has two radial protrusions 21 on inwall, at described set nut during along described locking direction rotation, radial protrusion 21 contacts with described wall thickness gradation zone 13, and described wall thickness gradation zone is applied to radial pressure.Snapping in an A place, radial protrusion 21 does not apply radial pressure to described wall thickness gradation zone, after crossing in rotation the certain angle that snaps in an A, start described wall thickness gradation zone is applied to radial pressure, and, along with rotation, pressure increases gradually.
In Fig. 3, the inwall of set nut 2 is the face of cylinder, and described radial protrusion is outstanding from the described face of cylinder towards center.But the utility model is not limited to this kind of structure.For example, the inwall of set nut 2 can be also the conical surface, or can be elliptic cylinder, as long as can realize the rotational lock function.
According to an embodiment, the utility model also provides a kind of video camera that comprises camera lens hold-fast body as above.
The installation process of camera lens hold-fast body of the present utility model can be as follows:
1. the lens mount of set nut being packed into, for example can aim at the radial protrusion of set nut 2 21 groove 12 of heads 11, then set nut 2 is socketed in to head last, sees Fig. 4.
2. camera lens 4 is inserted to the lens mount that set nut has been housed, see Fig. 5.
3., after camera lens is in place, the rotational lock nut, until the set nut boss is locked the wall thickness gradation zone and snapped in the anti-falling limit projection, be shown in Fig. 6.
Finally it is to be noted: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit.Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a camera lens hold-fast body, is characterized in that, comprises lens mount and set nut,
Described lens mount has the tubular head, and described head comprises:
At least one groove, the position that described groove closes on to the butt extended to described head from the terminal shaft of described head; And
At least one wall thickness gradation zone, in described wall thickness gradation zone, the wall thickness of described head increases gradually along circumferential locking direction,
Described set nut is suitable for being socketed in outside described head, and there is at least one radial protrusion on inwall, at described set nut, during along described locking direction rotation, described radial protrusion contacts with described wall thickness gradation zone, and described wall thickness gradation zone is applied to radial pressure.
2. camera lens hold-fast body as claimed in claim 1, is characterized in that, the inwall of described set nut is the face of cylinder, and described radial protrusion is outstanding from the described face of cylinder towards center.
3. camera lens hold-fast body as claimed in claim 1, it is characterized in that, the quantity of described groove is two, and described two grooves are symmetrical arranged with respect to the axis of described head, the quantity of described wall thickness gradation zone is two, and described two wall thickness gradation zones are symmetrical arranged with respect to the axis of described head.
4. camera lens hold-fast body as claimed in claim 1, is characterized in that, described head has maximum locking spacing preiection in the thickest position of described wall thickness gradation zone, and described maximum locking spacing preiection is radially outward outstanding, and extends axially.
5. camera lens hold-fast body as claimed in claim 1, it is characterized in that, described head has the anti-falling limit projection of closing on the head end setting, described anti-falling limit projection is radially outward outstanding, and circumferentially extend, the distance between the butt of described anti-falling limit projection and described head is more than or equal to the height of described set nut.
6. camera lens hold-fast body as claimed in claim 5, is characterized in that, the axially extended scope of described anti-falling limit projection does not exceed the circumferential scope of described wall thickness gradation zone.
7. camera lens hold-fast body as claimed in claim 1, is characterized in that, described anti-falling limit projection is connected with described maximum locking spacing preiection.
8. camera lens hold-fast body as claimed in claim 1, is characterized in that, the thickest of described wall thickness gradation zone and the difference of minimum wall thickness (MINI W.) 0.2 millimeter with the scope of 2 millimeters within.
9. camera lens hold-fast body as claimed in claim 8, is characterized in that, described maximum locking spacing preiection with respect to the height of the thickest position radial projection of described wall thickness gradation zone within the scope of 0.5 millimeter to 1.5 millimeters.
10. a video camera, is characterized in that, comprises camera lens hold-fast body as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320080739.9U CN203350590U (en) | 2013-02-21 | 2013-02-21 | Lens enclasping mechanism and video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320080739.9U CN203350590U (en) | 2013-02-21 | 2013-02-21 | Lens enclasping mechanism and video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350590U true CN203350590U (en) | 2013-12-18 |
Family
ID=49750469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320080739.9U Expired - Fee Related CN203350590U (en) | 2013-02-21 | 2013-02-21 | Lens enclasping mechanism and video camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350590U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793311A (en) * | 2015-04-30 | 2015-07-22 | 浙江宇视科技有限公司 | Connecting mechanism of lens and lens mount |
| CN108490638A (en) * | 2018-05-23 | 2018-09-04 | 中山联合光电科技股份有限公司 | A kind of optical anti-vibration structure |
| CN108957907A (en) * | 2018-08-13 | 2018-12-07 | 中山联合光电科技股份有限公司 | A kind of optical anti-vibration device of with locking mechanism |
-
2013
- 2013-02-21 CN CN201320080739.9U patent/CN203350590U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793311A (en) * | 2015-04-30 | 2015-07-22 | 浙江宇视科技有限公司 | Connecting mechanism of lens and lens mount |
| CN108490638A (en) * | 2018-05-23 | 2018-09-04 | 中山联合光电科技股份有限公司 | A kind of optical anti-vibration structure |
| CN108490638B (en) * | 2018-05-23 | 2023-09-12 | 中山联合光电科技股份有限公司 | Optical anti-shake structure |
| CN108957907A (en) * | 2018-08-13 | 2018-12-07 | 中山联合光电科技股份有限公司 | A kind of optical anti-vibration device of with locking mechanism |
| CN108957907B (en) * | 2018-08-13 | 2024-05-07 | 中山联合光电科技股份有限公司 | Optical anti-shake device with locking mechanism |
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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: 20131218 Termination date: 20210221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |