CN215678903U - Precise focusing base structure of telescope - Google Patents
Precise focusing base structure of telescope Download PDFInfo
- Publication number
- CN215678903U CN215678903U CN202121074430.XU CN202121074430U CN215678903U CN 215678903 U CN215678903 U CN 215678903U CN 202121074430 U CN202121074430 U CN 202121074430U CN 215678903 U CN215678903 U CN 215678903U
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- focusing
- positioning mechanism
- rack
- seat
- telescope
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Abstract
The utility model provides a telescope precision focusing base structure, which comprises a focusing base, a focusing barrel and a rack, and is characterized in that: the inside focusing section of thick bamboo that can follow focusing seat reciprocating motion that is provided with of focusing seat, focusing section of thick bamboo top central point puts and is fixed with the rack, and focusing seat top inner wall is close to the intermediate position and is provided with positioning mechanism respectively, and the positioning mechanism both sides are provided with the bearing respectively, and the bearing forms the cooperation with the rack both sides, and the focusing seat top is close to positioning mechanism and sets up the adjustment hole of symmetry, and the adjustment downthehole portion is provided with adjusting screw, and the adjustment precision is high, and the adjustment is convenient.
Description
Technical Field
The utility model relates to the field of optical instrument equipment, in particular to a precise focusing base structure of a telescope.
Background
The focusing mode of the existing telescope mainly adopts the matching of a hand wheel and a gear shaft, and realizes the adjustment of the focal length of the telescope by utilizing the mutual meshing of the gear shaft and a rack.
The focusing mode is a common focusing mode of a telescope, but the rack is meshed with the gear shaft to enable the focusing barrel to reciprocate, but the phenomenon that the focusing barrel is displaced after long-term use exists, in this case, the axis of the focusing barrel deviates from the optical axis, and the imaging quality is reduced.
Disclosure of Invention
The utility model aims to provide a telescope precision focusing base structure, which is characterized in that two groups of bearings are designed on two sides of a rack through reasonable structural design, the running direction of the rack is adjusted, and a focusing barrel is prevented from displacing.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a precision focusing base structure of telescope, includes focusing base, focusing barrel, rack, its characterized in that: the inside focusing section of thick bamboo that can follow focusing seat reciprocating motion that is provided with of focusing seat, focusing section of thick bamboo top central point puts and is fixed with the rack, and focusing seat top inner wall is close to the intermediate position and is provided with positioning mechanism respectively, and the positioning mechanism both sides are provided with the bearing respectively, and the bearing forms the cooperation with the rack both sides, and the focusing seat top is close to positioning mechanism and sets up the adjustment hole of symmetry, and the adjustment downthehole portion is provided with adjusting screw.
As a further improvement of the utility model, the number of the adjusting holes is 4, and each group of the adjusting holes is provided with 2 symmetrically.
As a further improvement of the utility model, the positioning mechanism is fixed at a corresponding position of the focusing seat through a screw, and the screw penetrates through the focusing seat and is matched and fixed with a threaded hole in the middle of the positioning mechanism.
As a further improvement of the utility model, a hand wheel is arranged on the focusing seat, a gear shaft is arranged at the center of the hand wheel, and the gear shaft is meshed with the rack.
The working principle of the utility model is that the positioning mechanism is fixed by the fixing screw, the positioning mechanism is adjusted by rotating the adjusting screw, the adjusting screw props against two sides of the positioning mechanism to adjust the angle of the positioning mechanism, so that the matching of the bearing and the rack is promoted, and meanwhile, the matching of the bearing and the rack adopts a rotating mode, thus the utility model has the advantages of small friction force, no abrasion on two sides of the rack and higher adjusting precision.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the focusing barrel of the present invention in cooperation with a positioning mechanism.
Detailed Description
The utility model is further explained below with reference to fig. 1 and 2.
The utility model provides a precision focusing seat structure of telescope, includes focusing seat 7, focusing barrel 3, rack 2, its characterized in that: the inside focusing barrel 3 that can follow 7 reciprocating motion of focusing seat that is provided with of focusing seat 7, 3 top central point of focusing barrel puts and is fixed with rack 2, 7 top inner walls of focusing seat are close to the intermediate position and are provided with positioning mechanism 5 respectively, positioning mechanism 5 both sides are provided with bearing 6 respectively, bearing 6 forms the cooperation with 2 both sides of rack, the adjusting hole 4 of symmetry is seted up near positioning mechanism 5 in 7 tops of focusing seat, the inside adjusting screw that is provided with of adjusting hole 4, utilize the rotation of bearing 6 and the cooperation of rack 2, the frictional force is little, the effectual wearing and tearing that cause rack 2 because of the friction that prevents.
As a further preferable scheme of the present invention, the number of the adjusting holes 4 is 4, and each group of 2 adjusting holes is symmetrically arranged, so that adjustment with a larger angle can be performed.
As a further preferable scheme of the present invention, the positioning mechanism 5 is fixed at a corresponding position of the focusing seat 7 through the screw 1, the screw 1 penetrates through the focusing seat 7 to be matched and fixed with a threaded hole in the middle of the positioning mechanism 5, and the screw 1 is in threaded fit with the central position of the positioning mechanism 5, so that the adjustment is convenient.
As a further preferable scheme of the present invention, a hand wheel 8 is arranged on the focusing seat 7, a gear shaft is arranged at the center of the hand wheel 8, and the gear shaft is meshed with the rack 2.
Claims (4)
1. The utility model provides a precision focusing base structure of telescope, includes focusing base, focusing barrel, rack, its characterized in that: the inside focusing section of thick bamboo that can follow focusing seat reciprocating motion that is provided with of focusing seat, focusing section of thick bamboo top central point puts and is fixed with the rack, and focusing seat top inner wall is close to the intermediate position and is provided with positioning mechanism respectively, and the positioning mechanism both sides are provided with the bearing respectively, and the bearing forms the cooperation with the rack both sides, and the focusing seat top is close to positioning mechanism and sets up the adjustment hole of symmetry, and the adjustment downthehole portion is provided with adjusting screw.
2. A telescope fine focusing base structure according to claim 1, wherein: the number of the adjusting holes is 4, and each group of the adjusting holes is symmetrically arranged by 2.
3. A telescope fine focusing base structure according to claim 1, wherein: the positioning mechanism is fixed at the corresponding position of the focusing seat through a screw, and the screw penetrates through the focusing seat and is matched and fixed with a threaded hole in the middle of the positioning mechanism.
4. A telescope fine focusing base structure according to claim 1, wherein: a hand wheel is arranged on the focusing seat, a gear shaft is arranged in the center of the hand wheel, and the gear shaft is meshed with the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121074430.XU CN215678903U (en) | 2021-05-19 | 2021-05-19 | Precise focusing base structure of telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121074430.XU CN215678903U (en) | 2021-05-19 | 2021-05-19 | Precise focusing base structure of telescope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215678903U true CN215678903U (en) | 2022-01-28 |
Family
ID=79972349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121074430.XU Active CN215678903U (en) | 2021-05-19 | 2021-05-19 | Precise focusing base structure of telescope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215678903U (en) |
-
2021
- 2021-05-19 CN CN202121074430.XU patent/CN215678903U/en active Active
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