CN201859248U - Device for fastening lens barrel - Google Patents
Device for fastening lens barrel Download PDFInfo
- Publication number
- CN201859248U CN201859248U CN2010205857189U CN201020585718U CN201859248U CN 201859248 U CN201859248 U CN 201859248U CN 2010205857189 U CN2010205857189 U CN 2010205857189U CN 201020585718 U CN201020585718 U CN 201020585718U CN 201859248 U CN201859248 U CN 201859248U
- Authority
- CN
- China
- Prior art keywords
- set collar
- holding unit
- swivel becket
- barrel holding
- guide channel
- 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 - Lifetime
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- Pivots And Pivotal Connections (AREA)
Abstract
The utility model is a device for fastening a lens barrel, including a fixing base, a rotating ring and a spacing member. The fixing base includes a fixing ring having a groove arranged on en external edge face of the fixing ring and extended along a circumferential direction of the fixing ring. The rotating ring rotatably surrounds the fixing ring and is provided with a guide channel extended along a circumferential direction and axial direction of the rotating ring. The spacing member is fixed to an internal edge face of the rotating ring and provided with a suspension end arranged in the groove to prevent the rotating ring from axially moving relative to the fixing ring. Thereby, the rotating ring does not need to provide an additional guide channel to prevent the rotating ring from disengaging from the fixing ring, a length of the rotating ring can be reduced, material and cost of manufacturing the rotating ring can also be reduced.
Description
Technical field
The utility model is about a kind of optical facilities device, especially about a kind of barrel holding unit.
Background technology
See also shown in Figure 1ly, be a kind of existing barrel holding unit (device for holding lens barrel) 1A, this device 1A includes a holder 11A, a change 12A, and change 12A is placed in holder 11A, and can do axial rotation.In order to allow change 12A can relative fixed seat 11A not move axially and break away from holder 11A, change 12A need be provided with one first guide channel 121A, and is arranged among the first guide channel 121A with a bolt 13A and change 12A is fixed on the holder 11A.So, when change 12A desires axially to move forward and backward, bolt 13A will provide backstop to try hard to avoid and exempt from rotating shaft 12A disengaging holder 11A; But change 12A desires axially time rotational, and bolt 13A then can not keep out it.
Change 12A is provided with one second guide channel 122A in addition, and holder 11A and is passed in another bolt 14A position in the second guide channel 122A, fixes with barrel 15A among the holder 11A.So change 12A time rotational can force bolt 14A to move axially, and then force barrel 15A to move axially.
From the above, existing barrel holding unit needs two guide channel 121A and 122A and other co-operating member at least, reaches to adjust focal length and fixing dual-use function, wherein, guide channel 121A is used for preventing that change 12A from moving axially, and guide channel 122A is used for driving barrel 15A and moves.
Yet the number increase of guide channel means that the length of change 12A and material cost increase, and the accessory costs such as bolt that cooperate with guide channel also will be accompanied by increase, and the length that change 12A increases will be unfavorable for the lightening development of electronic product.In addition, the number of guide channel increases except the processing cost that increases change 12A, and the surface accuracy of guide channel and dimensional tolerence precision improve thereupon, and it is smooth and easy and mobile accurate to guarantee that just barrel 15A moves.
Because above-mentioned disappearance provides a kind of barrel holding unit that reduces the guide channel number, this is this industry problem demanding prompt solution.
The utility model content
The purpose of this utility model is to provide a kind of barrel holding unit, and it can reduce the quantity of guide channel, uses and reduces material and manufacturing cost.
For reaching above-mentioned purpose, barrel holding unit of the present utility model comprises a holder, a swivel becket and a locating part.This holder comprises a set collar, and this set collar has a groove, and this groove is arranged at the outer edge surface of this set collar, and along the circumferential extension of this set collar.This swivel becket is rotationally around this set collar, and this swivel becket has a guide channel, this guide channel along this swivel becket circumferentially and extend axially.And this locating part is fixed in the inner edge surface of this swivel becket, and a free end of this locating part is embedded in this groove, axially moves relative to this set collar to limit this swivel becket.
Useful technique effect of the present utility model is: locating part is arranged in groove can allow swivel becket can not break away from holder, so swivel becket does not need an extra guide channel, make the length of swivel becket therefore to reduce, and then allow the material cost of swivel becket and manufacturing cost all reduce.
For above-mentioned purpose, technical characterictic and advantage can be become apparent, hereinafter will be elaborated with the preferred embodiment conjunction with figs..
Description of drawings
Fig. 1 is the synoptic diagram of existing barrel holding unit.
Fig. 2 is the three-dimensional combination figure of the barrel holding unit example of the first preferable enforcement of the present utility model.
Fig. 3 is the three-dimensional exploded view of the barrel holding unit of first preferred embodiment of the present utility model.
Fig. 4 is the enlarged detail of the A part of Fig. 2.
Fig. 5 is the enlarged detail of the A part of Fig. 3.
Fig. 6 is the three-dimensional combination figure of the barrel holding unit of second preferred embodiment of the present utility model.
Fig. 7 is the enlarged detail of the A part of Fig. 6.
Embodiment
See also Fig. 2 to shown in Figure 5, be the barrel holding unit 1 of the utility model first preferred embodiment.This barrel holding unit 1 can lack a barrel (figure does not show) in order to be retained to, and controls barrel and move.Barrel holding unit 1 comprises a holder 10, a swivel becket 20, a plurality of locating part 30 and a plurality of web member 40.
113 of these straight flutes are to extend axially along set collar 11 respectively, and are connected with accommodation space 111 in the set collar 11.In addition, these straight flutes 113 can be positioned at the rear of groove 112.
Fixed head 12 is fixed in the trailing edge of set collar 11, and both can be one of the forming fixed head 12 and set collar 11, also can be by suitable buckling piece with the two firm engagement.Fixed head 12 can conveniently be fixed in other element (figure does not show) because have bigger plane, and for example the framework of camera makes set collar 11 can be fixed in other element indirectly.Yet, can know as the knowledgeable that knows usually of technical field herewith, this set collar 11 itself also can directly be fixed on other element, and omits the setting of fixed head 12.
Swivel becket 20 is located on the set collar 11 rotationally, and the internal diameter of swivel becket 20 is bigger slightly than the external diameter of set collar 11, but makes swivel becket 20 relative fixed rings 11 rotate (rotation).Swivel becket 20 has a plurality of guide channels 21, and it is used for guiding web member 40 and moves in guide channel 21.These guide channels 21 simultaneously along swivel becket 20 circumferentially and axial oblique extension, so two ends of guide channel 21 are not positioned on the transverse section that is parallel to fixed head 12, and have an axial distance.This axial distance is web member 40 and barrel in axially going up transportable ultimate range, and this distance equates with the axial length essence of straight flute 113.
In addition, when swivel becket 20 during around set collar 11, these guide channels 21 can be positioned at the rear of groove 112, and partly overlapping with these straight flutes 113 respectively.When swivel becket 20 rotated, guide channel 21 can change along with the rotational angle of swivel becket 20 with the lap of straight flute 113.
30 of these locating parts are inner edge surfaces 22 that is fixed in swivel becket 20, and it can be a projection, and can be integrally formed with swivel becket 20.Locating part 30 has a free end 31 (locating part 30 is not followed the part of inner edge surface 22 combinations), and this free end 31 can be embedded in this groove 112 (as shown in Figure 4), axially moves relative to this set collar 11 with restriction swivel becket 20.So swivel becket 20 breaks away from set collar 11 with regard to not moving axially, and swivel becket 20 can not move in axially going up in the time of rotation in the rotation of same place.In addition, when swivel becket 20 rotates, but circumferentially move in locating part 30 grooves 112.
Swivel becket 20 is that the place ahead by set collar 11 is enclosed within on the set collar 11, and the free end 31 of these locating parts 30 can be arranged in groove 112 by these openings 1121 respectively, can not be stuck in the leading edge of set collar 11.What deserves to be mentioned is, even imperforation 1121, locating part 30 also can not be stuck in the leading edge of set collar 11, as long as swivel becket 20 is subjected to a bigger power, allowing locating part 30 be fixed, ring 11 leading edge is pulled and crooked, forces locating part 30 to cross the leading edge of set collar 11 and is arranged in groove 112.
These web members 40 are movably located on respectively in these guide channels 21 and these straight flutes 113, and in more detail, connector 40 runs through guide channel 21 and straight flute 113, and can move relative to guide channel 21 and straight flute 113.In addition, an end of web member 40 stretches in the accommodation space 111, with accommodation space 111 in barrel fix.When swivel becket 20 rotated, web member 40 can be promoted and move axially by guide channel 21, and then the drive barrel moves axially.Because straight flute 113 is for extending axially, so can not interfere web member 40 to move.
More than be the explanation of the barrel holding unit 1 of first embodiment, other preferred embodiment of barrel holding unit then is described.
See also Fig. 6 and Fig. 7, it is the barrel holding unit 2 of second preferred embodiment of the present utility model.Barrel holding unit 2 is similar with barrel holding unit 1, comprise a holder 10, a swivel becket 20 and a plurality of web member 40, but barrel holding unit 2 comprises the locating part 50 of a plurality of another kind of kenels.Below will introduce locating part 50 in detail, and barrel holding unit 2 does not repeat them here similar in appearance to the part of barrel holding unit 1.
These locating parts 50 can be a bolt in present embodiment, and are locked in separably respectively on a plurality of screws 23 of swivel becket 20.So, swivel becket 20 can be enclosed within earlier on the set collar 11, then locating part 50 locks is advanced in the screw 23 of swivel becket 20, and lasting rotary stopper spare 50, stretches out the inner edge surface 22 of swivel becket 20 and arrives in the groove 112 up to the free end 51 of locating part 50.
From the above, locating part 50 is by radially the entering in the groove 112 of set collar 11, need not enter in the groove 112 by opening (as shown in Figure 5), so the opening of groove 112 can omit.
It more than is the explanation of the barrel holding unit 2 of second embodiment.The barrel holding unit 1 or 2 of the foregoing description all includes a plurality of straight flutes, a plurality of opening, a plurality of guide channel, a plurality of locating part and a plurality of web member, yet the barrel holding unit also can only comprise a straight flute, opening, guide channel, locating part and a web member (figure does not show).The quantity of those features can't be construed as limiting.
In addition, locating part can be fixed on the rear of the guide channel of swivel becket.When locating part is positioned at groove, guide channel can the position in the place ahead of set collar leading edge, so web member only need pass guide channel and can the follow shot tube fixes.When web member moved axially, the ring that also can not be fixed was interfered.So under this kind configuration, set collar can not need be provided with straight flute.
The advantage comprehensively above-mentioned, that barrel holding unit tool of the present utility model is following:
1, locating part is arranged in groove and can allows swivel becket can not break away from set collar, and so swivel becket does not just need extra guide channel, and therefore the length of swivel becket can reduce, and then allow the material cost of swivel becket and manufacturing cost all reduce.
2, locating part has multiple kenel, with in response to different user demands.
The above embodiments only are used for exemplifying enforcement aspect of the present utility model, and explain technical characterictic of the present utility model, are not to be used for limiting protection category of the present utility model.Any be familiar with this operator can unlabored change or the arrangement of isotropism all belong to the scope that the utility model is advocated, rights protection scope of the present utility model should be as the criterion with claim.
Claims (9)
1. a barrel holding unit is characterized in that, comprising:
One holder comprises a set collar, and this set collar has a groove, and this groove is arranged at the outer edge surface of this set collar, and along the circumferential extension of this set collar;
One swivel becket, rotationally around this set collar, this swivel becket has a guide channel, this guide channel along this swivel becket circumferentially and extend axially; And
One locating part is fixed in the inner edge surface of this swivel becket, and this locating part has a free end, and this free end is embedded in this groove, axially moves relative to this set collar to limit this swivel becket.
2. barrel holding unit according to claim 1 is characterized in that, this locating part is a projection.
3. barrel holding unit according to claim 2 is characterized in that, this locating part and this swivel becket are one of the forming.
4. barrel holding unit according to claim 3 is characterized in that this groove has an opening, and this free end of this locating part is arranged in this groove by this opening.
5. barrel holding unit according to claim 1 is characterized in that, this locating part is one first bolt.
6. according to each the described barrel holding unit in the claim 1 to 5, it is characterized in that also comprise a connection piece, this web member is movably located in this guide channel.
7. barrel holding unit according to claim 6 is characterized in that this set collar also has a straight flute, and this straight flute extends axially along this set collar; This straight flute and this guide channel are partly overlapping, and this web member is movably located in this straight flute in addition.
8. barrel holding unit according to claim 6 is characterized in that, this connector comprises one second bolt and a roller, and this roller is enclosed within on this second bolt rotationally.
9. according to each the described barrel holding unit in the claim 1 to 5, it is characterized in that this holder also comprises a fixed head, this fixed head and this set collar fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205857189U CN201859248U (en) | 2010-10-09 | 2010-10-09 | Device for fastening lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205857189U CN201859248U (en) | 2010-10-09 | 2010-10-09 | Device for fastening lens barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201859248U true CN201859248U (en) | 2011-06-08 |
Family
ID=44105052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205857189U Expired - Lifetime CN201859248U (en) | 2010-10-09 | 2010-10-09 | Device for fastening lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201859248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959214A (en) * | 2015-07-08 | 2015-10-07 | 蔡惠文 | Sliding type table surface supporting device |
-
2010
- 2010-10-09 CN CN2010205857189U patent/CN201859248U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959214A (en) * | 2015-07-08 | 2015-10-07 | 蔡惠文 | Sliding type table surface supporting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190725 Address after: 1688 Jiangxing East Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Delta Electronics Agent Ltd Address before: 212400 No. 35 Huayang North Road, Jurong City, Zhenjiang, Jiangsu Province Co-patentee before: Delta Optoelectronics Inc. Patentee before: Jiangsu Jinhuai Optics Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |
|
| CX01 | Expiry of patent term |