CN108333707B - Zoom device - Google Patents
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- CN108333707B CN108333707B CN201710043027.2A CN201710043027A CN108333707B CN 108333707 B CN108333707 B CN 108333707B CN 201710043027 A CN201710043027 A CN 201710043027A CN 108333707 B CN108333707 B CN 108333707B
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- positioning
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- cylinder
- hole
- adjusting ring
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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
Abstract
The invention relates to a zoom device, which comprises a body, an outer barrel, an inner barrel, an adjusting ring and an adjusting ring positioning piece, wherein the inner barrel is arranged inside the body, a positioning hole is formed in the outer barrel, the outer barrel is rotatably sleeved on the inner barrel, the adjusting ring is rotatably sleeved on the body, the adjusting ring positioning piece comprises a fixing piece, an elastic body and a positioning barrel, the positioning barrel sequentially penetrates through the body and the positioning hole and then abuts against the outer peripheral surface of the inner barrel, the fixing piece is arranged on the adjusting ring, one end of the elastic body abuts against the fixing piece, the other end of the elastic body abuts against the inside of the positioning barrel, and the outer barrel can be driven to rotate relative to the body and the inner barrel by rotating the adjusting ring.
Description
Technical Field
The present invention relates to a zoom apparatus, and more particularly, to a zoom apparatus using a two-stage adjusting ring positioning member.
Background
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a conventional zoom apparatus 1, the zoom apparatus 1 includes a main body 10, an outer cylinder 20, an inner cylinder 30, a magnification adjusting ring 40 and a set screw 50, wherein the outer cylinder 20 is driven to rotate relative to the main body 10 and the inner cylinder 30 by rotating the magnification adjusting ring 40, and the assembly of these components is described in detail below:
as shown in fig. 1, the inner cylinder 30 is disposed inside the body 10, the outer cylinder 20 is rotatably sleeved outside the inner cylinder 30, the positioning hole 25 is formed on the outer cylinder 20, the magnification adjusting ring 40 is rotatably sleeved outside the body 10, the screw hole 45 is formed on the magnification adjusting ring 40, the positioning screw 50 includes a top portion, a threaded portion and a rod portion, wherein the threaded portion is fixed on the magnification adjusting ring 40 by the screw hole 45, and the rod portion sequentially penetrates through the body 10 and the positioning hole 25.
In operation, the rotation of the magnification adjusting ring 40 can make the positioning screw 50 slide relative to the body 10, and the rod of the positioning screw 50 matches with the positioning hole 25 on the outer cylinder 20, so that the outer cylinder 20 can rotate relative to the body 10 and the inner cylinder 30, and the outer cylinder 20 can respectively drive the first lens set and the second lens set arranged in the inner cylinder 30 to move two different distances relative to the inner cylinder 30 when rotating, so as to achieve the zooming function of the zooming device 1.
The conventional sighting device usually uses the above-mentioned conventional zoom device 1, and the assembly usually includes assembling the body 10, the outer cylinder 20, the inner cylinder 30 and the magnification adjusting ring 40, and then mounting and locking the positioning screw 50, but since the positioning hole 25 on the outer cylinder 20 is not directly visible in appearance, and the material (e.g. iron metal) of the positioning screw 50 is higher than the material (e.g. aluminum alloy) of the outer cylinder 20 in hardness, if the position of the positioning hole 25 is not reached during the locking process, the positioning hole 25 or the periphery thereof may be damaged, and if the chips generated after the damage penetrate between the positioning hole 25 and the inner cylinder 30, the movement of the whole device is not smooth, and therefore, the device must be disassembled and cleaned, which increases the product damage and the man-hour.
Furthermore, the conventional sighting device usually uses the elastic adjustment member to adjust the inclination angles of the outer cylinder 20 and the inner cylinder 30 relative to the main body 10 for elastic correction, but since the set screw 50 is fixed on the magnification adjustment ring 40 and is integrally formed, when the inclination angle of the inner cylinder 30 changes, an interference transition phenomenon may occur between the set screw 50 and the inner cylinder 30, so that the inner cylinder 30 is scratched by the set screw 50.
Disclosure of Invention
The present invention is directed to provide a zoom device, which can reduce the damage of the zoom device.
The present invention provides a preferred embodiment of a zoom apparatus, which includes a body, an inner cylinder, an outer cylinder, an adjusting ring and an adjusting ring positioning element, wherein the inner cylinder is disposed inside the body, a positioning hole is formed on the outer cylinder, the outer cylinder is rotatably sleeved on the inner cylinder, the adjusting ring is rotatably sleeved on the body, the adjusting ring positioning element includes a fixing element, an elastic element and a positioning cylinder, the positioning cylinder sequentially passes through the body and the positioning hole and then abuts against the outer peripheral surface of the inner cylinder, the fixing element is disposed on the adjusting ring, one end of the elastic element abuts against the fixing element, and the other end abuts against the inside of the positioning cylinder, wherein the adjusting ring is rotated to drive the outer cylinder to rotate relative to the body and the inner cylinder.
In another embodiment, the adjusting ring includes a fixing hole formed therein, the fixing member is fixed to the adjusting ring via the fixing hole, and one end of the positioning tube adjacent to the fixing member extends into the fixing hole.
In another embodiment, the adjusting ring includes a fixing hole formed therein, the fixing member is fixed to the adjusting ring via the fixing hole, one end of the positioning tube near the fixing member extends into the fixing hole, the fixing member further includes a rod portion, the rod portion is disposed in the positioning tube, and the elastic body is compressed in a gap between the rod portion and the positioning tube.
In another embodiment, the present invention further comprises a gap formed between the adjustment ring and the body.
In another embodiment, the adjusting ring includes a groove formed on an inner side of the adjusting ring, the fixing member is disposed in the groove, and an end of the positioning cylinder near the fixing member extends into the groove.
In another embodiment, the present invention further includes a pressing ring, wherein the pressing ring is sleeved on the body, disposed in the gap, and abutted against the positioning cylinder.
In another embodiment, the present invention further includes a positioning ring, wherein the positioning ring includes a notch, the notch is formed on the positioning ring, when the positioning ring is sleeved on the body and disposed in the gap, the positioning ring abuts against the adjusting ring, so that the notch and the inner wall of the adjusting ring form a groove, the fixing member is disposed in the groove, and one end of the positioning tube close to the fixing member extends into the groove.
In another embodiment, the present invention further includes a pressing ring, wherein the pressing ring is sleeved on the body, disposed in the gap, and abutted against the positioning ring.
In another embodiment, the inner peripheral surface of the positioning hole has an inclined surface, the diameter of the positioning hole is the largest when the positioning hole is located on the outer peripheral surface of the outer cylinder, and the diameter of the positioning hole which is closer to the inner cylinder is smaller.
In another embodiment, the outer diameter of the positioning cylinder is the same as the diameter of a section of the positioning hole, so that the positioning cylinder is in contact with the positioning hole.
The zoom device has the following beneficial effects: the adjusting ring positioning piece is assembled in a two-segment mode, the adjusting ring positioning piece comprises a fixing piece and a positioning barrel, the fixing piece and the positioning barrel are connected through an elastic body, the fixing piece and the positioning barrel can be movably combined, when the inner barrel generates inclination angle change, the interference degree of the adjusting ring positioning piece and the inner barrel can be ensured, in addition, the positioning barrel can be assembled on the positioning hole of the outer barrel firstly during assembly, and when the position of the positioning barrel can be seen visually, the fixing piece and the elastic body are pressed and fixed, so that the outer barrel is not damaged.
Drawings
Fig. 1 is a schematic structural view of a conventional magnification-varying device.
Fig. 2 is a schematic structural diagram of one embodiment of the zoom apparatus of the present invention.
Fig. 3 is a schematic structural view of another embodiment of the zoom apparatus of the present invention.
Fig. 4 is a schematic structural view of another embodiment of the zoom apparatus of the present invention.
FIG. 5 is a horizontal cross-sectional view of the adjustment ring of FIG. 4
Fig. 6 is a schematic structural view of another embodiment of the zoom apparatus of the present invention.
FIG. 7 is a front cross-sectional view of the retaining ring of FIG. 6
FIG. 8 is a front cross-sectional view of one embodiment of the elastic body, the positioning cylinder and the outer cylinder of FIGS. 2-4 and 6.
Detailed Description
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the zoom apparatus of the present invention, in the embodiment, the zoom apparatus 100 includes a body 110, an outer cylinder 120, an inner cylinder 130, an adjusting ring 140 and an adjusting ring positioning member 150, wherein rotating the adjusting ring 140 can drive the outer cylinder 120 to rotate relative to the body 110 and the inner cylinder 130. The assembly of these components is described in detail below:
the inner cylinder 130 is disposed inside the body 110, the outer cylinder 120 is rotatably sleeved outside the inner cylinder 130, the positioning hole 125 is formed on the outer cylinder 120, and the adjusting ring 140 is rotatably sleeved outside the body 110. The adjusting ring positioning member 150 includes a fixing member 153, an elastic member 155 and a positioning cylinder 157, wherein the positioning cylinder 157 can movably pass through the body 110 and the positioning hole 125 in sequence and abut against the outer peripheral surface of the inner cylinder 130, the elastic member 155 is disposed inside the positioning cylinder 157, and finally the fixing member 153 is disposed on the adjusting ring 140, such that one end of the elastic member 155 abuts against the fixing member 153, and the other end abuts against the inside of the positioning cylinder 157.
As shown in fig. 2, in the present embodiment, the fixing hole 145 is formed on the adjusting ring 140, the fixing element 153 is fixed on the adjusting ring 140 through the fixing hole 145, one end of the positioning tube 157 close to the fixing element 153 extends into the fixing hole 145 to restrict the positioning tube 157 from moving along the axial direction of the fixing hole 145 through the fixing hole 145, the elastic body 155 is compressed between the fixing element 145 and the inside of the positioning tube 157, and the positioning tube 157 is abutted against the outer peripheral surface of the inner tube 130 through the restoring force of the elastic body 155. Specifically, the fixing member 153 may be a screw including a top portion and a threaded portion, the fixing hole 145 may be a threaded hole, the positioning cylinder 157 may be a cup-shaped cylinder including an open end and a bottom end, the open end is located in the fixing hole 145, the bottom end abuts against the outer circumferential surface of the inner cylinder 130, and the elastic body 155 may be a spring compressed between the threaded portion and the bottom end.
When the inclination angles of the outer cylinder 120 and the inner cylinder 130 relative to the body 110 change, since the fixing element 153 is connected with the positioning cylinder 157 by the elastic body 155, the positioning cylinder 157 can further compress or expand the length of the elastic body 155 according to the degree of the inclination angle change, so as to ensure that the adjusting ring positioning element 150 properly abuts against the outer peripheral surface of the inner cylinder 130, and the surface of the inner cylinder 130 is not scratched and damaged by the elastic body 155.
When the zoom function is to be performed, the adjusting ring 140 is rotated to enable the adjusting ring positioning element 150 to slide relative to the body 110, and the positioning cylinder 157 is matched with the positioning hole 125 on the outer cylinder 120, so that the outer cylinder 120 can rotate relative to the body 110 and the inner cylinder 130, and the outer cylinder 120 respectively drives the first lens set and the second lens set disposed in the inner cylinder 130 to move by two different distances relative to the inner cylinder 130 when rotating, thereby achieving the zoom function of the zoom apparatus 100.
Referring to fig. 3, fig. 3 shows a schematic structural view of another embodiment of the zoom apparatus of the present invention, in the zoom apparatus 200, the fixing element 153 may be another screw, and includes a top portion, a threaded portion and a rod portion, the fixing element 153 is still fixed on the adjusting ring 140 by the fixing hole 145, the rod portion extends from the threaded portion and penetrates through the positioning cylinder 157, so that the rod portion can restrict the axial movement of the positioning cylinder 157 along the fixing hole 145, the elastic body 155 is compressed in a gap between the rod portion and the inside of the positioning cylinder 157, and the positioning cylinder 157 is abutted against the outer peripheral surface of the inner cylinder 130 by a restoring force of the elastic body 155. The arrangement and operation of the remaining components are similar to those of the previous embodiments and are not described herein.
Referring to fig. 4, fig. 4 shows a schematic structural view of another embodiment of the zoom apparatus of the present invention, in the zoom apparatus 300, after the adjusting ring 140 is rotatably sleeved outside the body 110, an annular gap is formed between the adjusting ring 140 and the body 110, referring to fig. 5, fig. 5 is a horizontal cross-sectional view of the adjusting ring 140 of fig. 4, another groove 147 is formed inside the adjusting ring 140, the groove 147 further has an opening communicating with the annular gap, a fixing member 153 is disposed in the groove 147, one end of the positioning cylinder 157 close to the fixing member 153 extends into the groove 147, furthermore, the zoom apparatus 300 further includes a pressing ring 149, the pressing ring 149 is sleeved in the body 110 and disposed in the annular gap, and abuts against the end of the positioning cylinder 157 extending into the groove 147, so that the fixing member 147 and the pressing ring 149 constrain the positioning cylinder 157 to move along the axial direction of the positioning cylinder 157, the elastic body 155 is compressed in the gap between the positioning cylinder 145 and the inside of the positioning cylinder 157, the positioning tube 157 is brought into contact with the outer peripheral surface of the inner tube 130 by the restoring force of the elastic body 155. The fixing member 153 may be a positioning pin or a positioning ball, and the groove 147 may be an elongated groove or a T-shaped groove. The arrangement and operation of the remaining components are similar to those described above and will not be described herein.
Referring to fig. 6 and fig. 6 showing a schematic structural view of another embodiment of the zoom apparatus of the present invention, the zoom apparatus 400 is similar to the zoom apparatus 300 of fig. 4, except that the zoom apparatus 400 further includes a positioning ring 141, referring to fig. 7, fig. 7 is a front cross-sectional view of the positioning ring 141 of fig. 6, a notch 143 is formed on the positioning ring 141, when the positioning ring 141 is sleeved on the body 110 and is disposed in another annular gap formed between the adjusting ring 140 and the body 110, the positioning ring 141 abuts against the adjusting ring 140, so that another groove 147 is formed between the notch 143 and the inner wall of the adjusting ring 140, a fixing member 153 is disposed in the groove 147, one end of the positioning cylinder 157 close to the fixing member 153 extends into the groove 147, so that the inner wall of the adjusting ring and the notch 143 constrain the positioning cylinder 157 to move along the axial direction of the positioning cylinder 157, the elastic member 155 is still compressed in the gap between the fixing member 145 and the inside, the positioning tube 157 is brought into contact with the outer peripheral surface of the inner tube 130 by the restoring force of the elastic body 155, and the zoom apparatus 400 may be provided with a press ring 149 fitted to the main body 110 in the annular gap, and the press ring 149 is brought into contact with the positioning ring 141. The positioning ring 141 may be fixed in the annular gap by an adhesive, such as but not limited to glue, and abuts against the adjusting ring 140. The arrangement and operation of the remaining components are similar to those described above and will not be described herein.
As shown in fig. 4, 5 and 6, in another embodiment, the outer peripheral surface of the pressing ring 149 may have an external thread (not shown), the inner peripheral surface of the adjusting ring 140, which is not abutted to the main body, may have an internal thread 190, and the pressing ring 149 may be disposed in the annular gap through the internal thread 190 and the external thread.
Referring to fig. 8, fig. 8 illustrates a structure of the positioning cylinder 157 and the outer cylinder 120 in fig. 2 to 4 and 6 according to another embodiment, in this embodiment, the inner circumferential surface of the positioning hole 125 has an inclined surface 127, so that the diameter of the positioning hole 125 at the outer circumferential surface of the outer cylinder 120 is the largest, and the diameter of the positioning hole 125 closer to the inner cylinder 130 is the smaller, specifically, the positioning hole 125 may be an inverted trapezoid or funnel shape as seen from the longitudinal section, and in addition, since the positioning cylinder 157 is matched with the inclined surface 127, the outer diameter of the positioning cylinder 157 is the same as the diameter of a certain section of the positioning hole 125, so that the positioning cylinder 157 is in contact engagement with the positioning hole 125, and the positions where the positioning cylinder 157 is in contact with the positioning hole 125 are in clearance fit without holes, so as to reduce the occurrence of assembly tolerance or error.
The zoom apparatus of the present invention is characterized in that the elastic body 155 is disposed between the fixing member 153 and the positioning cylinder 157, so that the fixing member 153 and the positioning cylinder 157 can be movably combined into a two-stage adjusting ring positioning member 150, when the inner cylinder 130 has a changed inclination angle, the interference between the adjusting ring positioning member 150 and the inner cylinder 130 can be properly adjusted by the elastic body 155, and in addition, the zoom apparatus can be further matched with the positioning hole 125 with an inclined design to ensure that the inner cylinder 130 is not damaged.
Claims (20)
1. A magnification-varying device, characterized by comprising:
a body;
the inner cylinder is arranged in the body;
the outer cylinder comprises a positioning hole, the positioning hole is formed in the outer cylinder, and the outer cylinder is rotatably sleeved on the inner cylinder;
the adjusting ring is rotatably sleeved on the body; and
the adjusting ring positioning piece comprises a fixing piece, an elastic body and a positioning barrel, wherein the positioning barrel sequentially penetrates through the body and the positioning hole and then abuts against the outer peripheral surface of the inner barrel;
wherein, the outer cylinder can be driven to rotate relative to the body and the inner cylinder by rotating the adjusting ring.
2. The zoom apparatus of claim 1, wherein the adjusting ring comprises a fixing hole formed therein, the fixing member is fixed to the adjusting ring via the fixing hole, and an end of the positioning cylinder near the fixing member extends into the fixing hole.
3. The zoom apparatus of claim 1, wherein the adjustment ring comprises a fixing hole formed therein, the fixing member is fixed to the adjustment ring via the fixing hole, one end of the positioning cylinder near the fixing member extends into the fixing hole, the fixing member further comprises a rod portion, the rod portion is disposed inside the positioning cylinder, and the elastic body is compressed in a gap between the rod portion and the inside of the positioning cylinder.
4. The magnification-varying device of claim 1, further comprising a gap formed between the adjusting ring and the body.
5. The zoom apparatus of claim 4, wherein the adjusting ring comprises a groove formed on an inner side of the adjusting ring, the fixing member is disposed in the groove, and an end of the positioning cylinder near the fixing member extends into the groove.
6. The zoom apparatus of claim 5, further comprising a pressing ring, wherein the pressing ring is sleeved on the body and disposed in the gap, and abuts against the positioning cylinder.
7. The zoom apparatus of claim 4, further comprising a positioning ring, wherein the positioning ring comprises a notch, the notch is formed on the positioning ring, when the positioning ring is sleeved on the body and disposed in the gap, the positioning ring abuts against the adjusting ring, so that the notch and the inner wall of the adjusting ring form a groove, the fixing member is disposed in the groove, and one end of the positioning tube near the fixing member extends into the groove.
8. The zoom apparatus of claim 7, further comprising a compression ring, wherein the compression ring is sleeved on the body and disposed in the gap, and abuts against the positioning ring.
9. The zoom apparatus of claim 1, wherein when the inner cylinder has a changed inclination angle, the deformation of the elastic body can further change the interference between the adjusting ring positioning member and the inner cylinder.
10. The zoom apparatus of claim 1, wherein the inner circumferential surface of the positioning hole has an inclined surface, the diameter of the positioning hole is the largest when the positioning hole is located at the outer circumferential surface of the outer cylinder, and the diameter of the positioning hole is smaller as the inner cylinder approaches, the outer diameter of the positioning cylinder is the same as the diameter of a certain section of the positioning hole, and the positioning cylinder is in contact with the positioning hole.
11. A magnification-varying device, characterized by comprising:
a body;
the inner cylinder is arranged in the body;
the outer cylinder comprises a positioning hole, the positioning hole is formed in the outer cylinder, and the outer cylinder is rotatably sleeved on the inner cylinder;
the adjusting ring is rotatably sleeved on the body and comprises a fixing hole, and the fixing hole is formed in the adjusting ring; and
the adjusting ring positioning piece comprises a fixing piece, an elastic body and a positioning barrel, wherein the positioning barrel sequentially penetrates through the body and the positioning hole and then abuts against the outer peripheral surface of the inner barrel;
one end of the positioning cylinder close to the fixing piece extends into the fixing hole, and the adjusting ring is rotated to drive the outer cylinder to rotate relative to the body and the inner cylinder.
12. The zoom apparatus of claim 11, wherein the fixing member is fixed to the adjusting ring through the fixing hole.
13. The zoom apparatus of claim 11, wherein the adjustment ring comprises a fixing hole formed therein, the fixing member is fixed to the adjustment ring via the fixing hole, one end of the positioning cylinder near the fixing member extends into the fixing hole, the fixing member further comprises a rod portion, the rod portion is disposed inside the positioning cylinder, and the elastic body is compressed in a gap between the rod portion and the inside of the positioning cylinder.
14. The magnification-varying device of claim 11 further comprising a gap formed between the adjusting ring and the body.
15. The zoom apparatus of claim 14, wherein the adjustment ring comprises a groove formed on an inner side of the adjustment ring, the fixing member is disposed in the groove, and an end of the positioning cylinder near the fixing member extends into the groove.
16. The zoom apparatus of claim 15, further comprising a pressing ring, wherein the pressing ring is sleeved on the body and disposed in the gap, and abuts against the positioning cylinder.
17. The zoom apparatus of claim 14, further comprising a positioning ring, wherein the positioning ring comprises a notch, the notch is formed on the positioning ring, when the positioning ring is sleeved on the body and disposed in the gap, the positioning ring abuts against the adjusting ring, so that the notch and the inner wall of the adjusting ring form a groove, the fixing member is disposed in the groove, and one end of the positioning tube near the fixing member extends into the groove.
18. The zoom apparatus of claim 17, further comprising a compression ring, wherein the compression ring is sleeved on the body and disposed in the gap, and abuts against the positioning ring.
19. The magnification-varying device as claimed in claim 11, wherein the deformation of the elastic body can change the interference between the adjusting ring positioning member and the inner cylinder when the inner cylinder is tilted.
20. The device as claimed in claim 11, wherein the positioning hole has an inclined surface on its inner periphery, the diameter of the positioning hole is the largest when the positioning hole is located on the outer periphery of the outer cylinder, and the diameter of the positioning hole is smaller as the inner cylinder approaches, the outer diameter of the positioning cylinder is the same as the diameter of a section of the positioning hole, so that the positioning cylinder contacts with the positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043027.2A CN108333707B (en) | 2017-01-19 | 2017-01-19 | Zoom device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043027.2A CN108333707B (en) | 2017-01-19 | 2017-01-19 | Zoom device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108333707A CN108333707A (en) | 2018-07-27 |
| CN108333707B true CN108333707B (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710043027.2A Active CN108333707B (en) | 2017-01-19 | 2017-01-19 | Zoom device |
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| Country | Link |
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| CN (1) | CN108333707B (en) |
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| TWI491950B (en) * | 2013-08-16 | 2015-07-11 | 信泰光學（深圳）有限公司 | Zoom lens assembly |
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| CN2699319Y (en) * | 2004-03-17 | 2005-05-11 | 深圳市金凯进光电仪器有限公司 | Focusing arrangement for optical telescopic systems |
| CN1731270A (en) * | 2005-08-24 | 2006-02-08 | 亚洲光学股份有限公司 | Reversibly contained lens module |
| CN201554761U (en) * | 2009-12-04 | 2010-08-18 | 伍鐌科技股份有限公司 | Anti-scrape locking device |
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| CN202579546U (en) * | 2012-02-28 | 2012-12-05 | 苏州麦德尔机械有限公司 | Lock bolt |
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| Publication number | Publication date |
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| CN108333707A (en) | 2018-07-27 |
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