CN201535840U - Draw tube capable of preventing sand from entering - Google Patents
Draw tube capable of preventing sand from entering Download PDFInfo
- Publication number
- CN201535840U CN201535840U CN2009202736245U CN200920273624U CN201535840U CN 201535840 U CN201535840 U CN 201535840U CN 2009202736245 U CN2009202736245 U CN 2009202736245U CN 200920273624 U CN200920273624 U CN 200920273624U CN 201535840 U CN201535840 U CN 201535840U
- Authority
- CN
- China
- Prior art keywords
- dust
- connecting rod
- flexible member
- lens barrel
- sand
- 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.)
- Expired - Fee Related
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- Lens Barrels (AREA)
Abstract
The utility model relates to a draw tube capable of preventing sand from entering, which comprises a group of outer tubes and a dust-proof cover device, wherein each outer tube comprises a tubular side wall and a ring-shaped fixing plate arranged on the top end of the tubular side wall, a plurality of clamping holes are arranged on the ring-shaped fixing plate, the dust-proof cover device comprises cover plates arranged on the top ends of a group of outer tubes, blades which can be rotatablely arranged between the cover plates and the ring-shaped fixing plates, a connecting rod which is arranged at the bottom of the ring-shaped fixing plate and is used for driving the blades to rotate, and an elastic element which is used for driving the connecting rod to rotate reversely, wherein the cover plate is provided with installation hook feet which are matched with the clamping holes, wherein elastic component connecting parts are arranged on the connecting rod, the bottom of the ring-shaped fixing plate is provided with elastic element hook pair parts, the elastic element hook pair parts are arranged on the edge of the clamp holes, and the elastic element is connected between the elastic element connecting parts and the elastic element hook pair parts. The clamp holes are directly used as shaping holes of the elastic element hook pair parts, thereby avoiding steps of subsequent sun-shielding paper covering.
Description
Technical field
The utility model relates to a kind of lens assembly, more particularly, relates to a kind of lens barrel that prevents that sand and dust from entering.
Background technology
In portable digital camera, dust-proof cover device all is equipped with, this dust-proof cover device comprises cover plate and the corresponding blade that has through hole, when camera used, blade was opened, and passed through for light; When camera did not use, blade was closed to cover the through hole on the cover plate, prevented that dust from falling on the eyeglass.
Fig. 1 is the decomposing schematic representation of a kind of lens barrel of prior art, and Fig. 2 then shows in the lens barrel of Fig. 1, the front view of a group urceolus.As depicted in figs. 1 and 2, this lens barrel 100 comprises a group urceolus 101 and dust-proof cover device.This dust-proof cover device comprises the cover plate 102 that is fixed on a group urceolus 101 front ends, be rotatably mounted to the blade (not shown) between a group urceolus 101 front ends and the cover plate 102 and be arranged on annular connecting rod 103 in a group urceolus 101.
Annular connecting rod 103 links to each other with the end of blade, when the Actuator Division of annular connecting rod 103 is subjected to touching, can makes annular connecting rod 103 rotate, and drive the end rotation of blade around the axis of self, make blade rotate around it tie point and rotate, thereby open or close., connecting rod 103 back in order to cancel in touching power can reset, and is provided with spring 104 in connecting rod 103 bottoms.One end of this spring 104 is connected on the spring stack 105 of connecting rod 103, and the other end is connected on the projection 106 in a group urceolus 101.
This projection 106 is one-body molded with a group urceolus 101.Because the needs of moulding, establish hole 107 need staying near projection 106 places.When assembling, stick light-shielding sheet again with hole 107 sealings, to avoid sand and dust to enter and to rush down light.But, set up light-shielding sheet and cause cost and assembling procedure to increase; And light-shielding sheet floats easily and causes badly, causes sand and dust to enter, rush down problems such as light.
The utility model content
The technical problems to be solved in the utility model is, need paste light-shielding sheet, easily produce bad defective at lens barrel of the prior art, provides a kind of and need not paste light-shielding sheet, can prevent the lens barrel that sand and dust enter simultaneously.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of lens barrel that prevents that sand and dust from entering, comprising:
The a group urceolus, the annular fixed head that comprises cylindrical lateral wall and be arranged on the cylindrical lateral wall top, described annular fixed head is provided with a plurality of hole clippings; And
Dust-proof cover device, comprise the cover plate that is fixed on a group urceolus top, rotationally be arranged on blade between described cover plate and the described annular fixed head, be arranged on described annular fixed head bottom and be used to drive the connecting rod of described blade rotation and be used to spur the counter-rotational flexible member of described connecting rod; Wherein said cover plate is provided with the installation hook that cooperates with described hole clipping;
Wherein, described connecting rod is provided with the flexible member connecting portion, and the bottom of described annular fixed head is provided with flexible member and colludes the portion of paying, and described flexible member colludes the edge that the portion of paying is arranged on described hole clipping; Described flexible member is connected described flexible member connecting portion and described flexible member colludes between the portion of paying.
According to the lens barrel that prevents that sand and dust from entering described in the utility model, described installation hook comprise the cover plate connecting portion that links to each other with described cover plate and be positioned at described cover plate connecting portion lower end and with the hook part that colludes in described hole clipping bottom.
According to the lens barrel that prevents that sand and dust from entering described in the utility model, the hook part of described installation hook is towards the direction of colluding the portion of paying away from described flexible member.
According to the lens barrel that prevents that sand and dust from entering described in the utility model, described installation hook is arranged on the periphery of described cover plate.
According to the lens barrel that prevents that sand and dust from entering described in the utility model, described a group urceolus also comprises the eyeglass fixed part that extends from the inner edge of described annular fixed head in described a group urceolus.
According to the lens barrel that prevents that sand and dust from entering described in the utility model, described annular fixed head is provided with the vanes fixed post and is the arcuate socket in the center of circle with the vanes fixed post, first end of described blade is sheathed on the described vanes fixed post rotationally, and this first end extends the clicking section to the side, and described clicking section links to each other with described connecting rod by behind the described arcuate socket.
According to the lens barrel that prevents that sand and dust from entering described in the utility model, also be provided with the connecting rod Actuator Division on the described connecting rod.
Implement the lens barrel that prevents that sand and dust from entering of the present utility model, has following beneficial effect: be arranged near the hole clipping because lens barrel colludes the portion that pays with flexible member, this hole clipping directly is used as the moulding hole that flexible member colludes the portion of paying when moulding, and do not need to be provided with separately in addition the moulding hole, therefore exempt the follow-up step that pastes light-shielding sheet, not only saved material cost, more simplified assembling procedure, the hole clipping sealing can be able to be prevented that sand and dust from entering and letting out light after hook being installed and hole clipping being connected.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the decomposing schematic representation of a kind of lens barrel in the prior art;
Fig. 2 is in the lens barrel of Fig. 1, the front view of a group urceolus;
Fig. 3 is the decomposing schematic representation of lens barrel in the utility model;
Fig. 4 is the stereographic map of lens barrel in the utility model, shows the inner structure of a group urceolus;
Fig. 5 is the front view of a group urceolus in the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 3 is the decomposing schematic representation of lens barrel of the present utility model.As shown in Figure 3, lens barrel 200 of the present utility model comprises a group urceolus 201 and is fixed in dust-proof cover device 202 on a group urceolus 201.For for purpose of brevity, omitted other assembly in the lens barrel 200 herein.
This a group urceolus 201 comprises cylindrical lateral wall 203, is arranged on the annular fixed head 204 on cylindrical lateral wall 203 tops and the eyeglass fixed part 205 that extends from annular fixed head 204 inner edges in a group urceolus 201.This eyeglass fixed bit 205 has the stepped endoporus 206 that diameter from top to bottom diminishes gradually, is used for fixing lens set (not shown).
This dust-proof cover device 202 comprises the cover plate 207 that is fixed on a group urceolus 201 tops, the connecting rod 210 that is arranged on a pair of blade 208,209 between cover plate 207 and the annular fixed head 204 and is arranged on annular fixed head 204 bottoms.Its cover plate 207 is provided with the hole of passing through for light 211, and cover plate 207 peripheries are provided with a plurality of installation hooks 212, and this installation hook 212 comprises cover plate connecting portion 221 that links to each other with cover plate 207 and the hook part 222 that is positioned at cover plate connecting portion 221 lower ends.On the annular fixed head 204 of a group urceolus 201, be provided with corresponding hole clipping 213; Hook 212 is installed is interconnected, make hook part 222 collude, thereby cover plate 207 is fixed on a group urceolus 201 tops, is positioned on the end face of annular fixed head 204 in hole clipping 213 bottoms with hole clipping 213.
Blade 208,209 all is arranged on the annular fixed head 204 rotationally.With blade 208 is example, and its first end is sheathed on the vanes fixed post 214 of annular fixed head 204 rotationally, and first end extends clicking section 215 to the side, and the end of this clicking section 215 is connected with start pin 216.This start pin 216 is connected with connecting rod 210 after passing arcuate socket 223 on the annular fixed head 204.Wherein this arcuate socket 223 is positioned near the vanes fixed post 214, and is the center of circle with vanes fixed post 214.
In conjunction with Fig. 3 and Fig. 4, connecting rod 210 is arranged on annular fixed head 204 bottoms and can rotates around self axis.Its outer peripheral face is provided with connecting rod Actuator Division 217, and this connecting rod Actuator Division 217 has the oblique angle.When touching of the assembly of correspondence and extruding oblique angle, can make connecting rod 210 be rotated in a first direction at hoop, rotate thereby stir blade 208 by the start pin 216 on the blade 208, make blade 208 arrive off-positions.
Can the second direction opposite rotate in the hoop upper edge in order to make touching power cancel back link 210, on connecting rod 210 outer peripheral faces, also be provided with flexible member connecting portion 218 with first direction.This flexible member connecting portion 218 can be a joint pin etc.On a group urceolus 201, be provided with corresponding elastic element and collude the portion 219 that pays.Along on the second direction of hoop, flexible member colludes to be paid a portion 219 and is positioned at before the flexible member connecting portion 218, is connected with flexible member 220 between the two, these flexible member 220 preferred springs.When connecting rod 210 was rotated in a first direction, flexible member 220 was elongated; After touching power was cancelled, under the effect of the restoring force of flexible member 220, connecting rod 210 drove blade 208 and opens along the second direction backward rotation.
In conjunction with Fig. 5, this flexible member colludes pays annular fixed head 204 bottoms that portion 219 is arranged on a group urceolus 201, and extends in a group urceolus 201 from the edge of one of them hole clipping 213.Just, for colluding the moulding hole and the hole clipping 213 of paying portion 219 and forming, integral spring element unites two into one.Like this, when installation hook 212 interconnects with hole clipping 213, will seal hole clipping 213.Collude a pair portion 219 for fear of installation hook 212 and flexible member and interfere mutually, the hook part 222 that hook 212 is installed is preferably towards the direction of colluding pair portion 219 away from flexible member.
Because lens barrel 200 of the present utility model colludes flexible member and pays a portion 219 and be arranged near the hole clipping 213, this hole clipping 213 directly is used as flexible member and colludes the moulding hole of paying portion 219 when moulding, and do not need to be provided with separately in addition the moulding hole, therefore exempted the follow-up step that pastes light-shielding sheet, not only saved material cost, more simplified assembling procedure, hole clipping 213 sealings can be able to have been prevented that sand and dust from entering and letting out light after hook being installed and hole clipping being connected.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. lens barrel that can prevent that sand and dust from entering comprises:
The a group urceolus, the annular fixed head that comprises cylindrical lateral wall and be arranged on the cylindrical lateral wall top, described annular fixed head is provided with a plurality of hole clippings; And
Dust-proof cover device, comprise the cover plate that is fixed on a group urceolus top, rotationally be arranged on blade between described cover plate and the described annular fixed head, be arranged on described annular fixed head bottom and be used to drive the connecting rod of described blade rotation and be used to spur the counter-rotational flexible member of described connecting rod; Wherein said cover plate is provided with the installation hook that cooperates with described hole clipping;
It is characterized in that described connecting rod is provided with the flexible member connecting portion, the bottom of described annular fixed head is provided with flexible member and colludes the portion of paying, and described flexible member colludes the edge that the portion of paying is arranged on described hole clipping; Described flexible member is connected described flexible member connecting portion and described flexible member colludes between the portion of paying.
2. the lens barrel that prevents that sand and dust from entering according to claim 1 is characterized in that, described installation hook comprise the cover plate connecting portion that links to each other with described cover plate and be positioned at described cover plate connecting portion lower end and with the hook part that colludes in described hole clipping bottom.
3. the lens barrel that prevents that sand and dust from entering according to claim 2 is characterized in that, the hook part of described installation hook is towards the direction of colluding the portion of paying away from described flexible member.
4. the lens barrel that prevents that sand and dust from entering according to claim 1 is characterized in that described installation hook is arranged on the periphery of described cover plate.
5. the lens barrel that prevents that sand and dust from entering according to claim 1 is characterized in that, described a group urceolus also comprises the eyeglass fixed part that extends from the inner edge of described annular fixed head in described a group urceolus.
6. the lens barrel that prevents that sand and dust from entering according to claim 1, it is characterized in that, described annular fixed head is provided with the vanes fixed post and is the arcuate socket in the center of circle with the vanes fixed post, first end of described blade is sheathed on the described vanes fixed post rotationally, and this first end extends the clicking section to the side, and described clicking section links to each other with described connecting rod by behind the described arcuate socket.
7. the lens barrel that prevents that sand and dust from entering according to claim 1 is characterized in that, also is provided with the connecting rod Actuator Division on the described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202736245U CN201535840U (en) | 2009-11-19 | 2009-11-19 | Draw tube capable of preventing sand from entering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202736245U CN201535840U (en) | 2009-11-19 | 2009-11-19 | Draw tube capable of preventing sand from entering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535840U true CN201535840U (en) | 2010-07-28 |
Family
ID=42535617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202736245U Expired - Fee Related CN201535840U (en) | 2009-11-19 | 2009-11-19 | Draw tube capable of preventing sand from entering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535840U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879974A (en) * | 2011-07-14 | 2013-01-16 | 亚洲光学股份有限公司 | Dustproof shutter device for lens |
| CN102967982A (en) * | 2012-11-08 | 2013-03-13 | 中山联合光电科技有限公司 | Blade opening and closing device |
| TWI409569B (en) * | 2010-09-24 | 2013-09-21 | Lumos Technology Co Ltd | Variable projection angle ring-shaped light source apparatus |
| WO2021217461A1 (en) * | 2020-04-28 | 2021-11-04 | 深圳市大疆创新科技有限公司 | Quick-release structure, photographing device and movable platform |
-
2009
- 2009-11-19 CN CN2009202736245U patent/CN201535840U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI409569B (en) * | 2010-09-24 | 2013-09-21 | Lumos Technology Co Ltd | Variable projection angle ring-shaped light source apparatus |
| CN102879974A (en) * | 2011-07-14 | 2013-01-16 | 亚洲光学股份有限公司 | Dustproof shutter device for lens |
| CN102967982A (en) * | 2012-11-08 | 2013-03-13 | 中山联合光电科技有限公司 | Blade opening and closing device |
| WO2021217461A1 (en) * | 2020-04-28 | 2021-11-04 | 深圳市大疆创新科技有限公司 | Quick-release structure, photographing device and movable platform |
| CN113853549A (en) * | 2020-04-28 | 2021-12-28 | 深圳市大疆创新科技有限公司 | Quick detach structure, shooting equipment and movable platform |
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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: 20100728 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |