CN210982876U

CN210982876U - Short-focus lens with high protection safety

Info

Publication number: CN210982876U
Application number: CN201921961936.5U
Authority: CN
Inventors: 杨华; 韩庆国; 赵培伟
Original assignee: Shandong Xinhui Photoelectric Technology Co ltd
Current assignee: Shandong Xinhui Photoelectric Technology Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-07-10
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a short-focus lens with high protection safety, which comprises a fixed shell, a fixed cylinder, a limit ring, a lens group, a fixed ring, a driving shell, a speed reducing motor, a first gear, a first rack and a cover body, wherein the fixed cylinder is fixed at one side of the fixed shell and is communicated with the fixed shell, the limit ring is fixed at the middle part of the inner wall of the fixed cylinder, the lens group is connected with the inner wall of the limit ring in a sliding way, the fixed ring is fixed at one end of the lens group close to the fixed shell, the fixed ring is connected with the inner wall of the fixed cylinder in a sliding way, the driving shell is fixed at one side of the fixed shell close to the fixed cylinder, the speed reducing motor is fixed at the upper end of the inner wall of the driving shell, the output end of the speed reducing motor passes through the driving shell and is fixed with the first gear, the first rack is fixed at one side of the lens, and prevent external dust from adhering to the lens of the lens group effectively, which is convenient for people to use.

Description

Short-focus lens with high protection safety

Technical Field

The utility model relates to a short burnt camera lens technical field specifically is a short burnt camera lens of protection security height.

Background

The short-focus lens is generally called a wide-angle lens, has a large visual angle, and is suitable for shooting in a narrow space. The short-focus lens can be used for shooting a narrow space to be wide, but the short-focus lens, especially the ultra-short-focus lens, can bring the effect of space perspective distortion, and can make an object close to the lens appear to be very large, and an object far away from the lens appear to be very small. Therefore, a short-focus lens with high protection safety is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a short burnt camera lens of security height to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a short-focus lens with high protection safety comprises a fixed shell, a fixed cylinder, a limiting ring, a lens group, a fixed ring, a driving shell, a speed reducing motor, a first gear, a first rack and a cover body, wherein the fixed cylinder is fixed on one side of the fixed shell, the fixed cylinder is communicated with the fixed shell, a limit ring is fixed in the middle of the inner wall of the fixed cylinder, a lens group is connected with the inner wall of the limit ring in a sliding way, a fixed ring is fixed at one end of the lens group close to the fixed shell, the fixed ring is connected with the inner wall of the fixed cylinder in a sliding way, one side of the fixed shell close to the fixed cylinder is fixed with the driving shell, a speed reducing motor is fixed at the upper end of the inner wall of the driving shell, a first gear is fixed at the output end of the speed reducing motor through the driving shell, one side of the lens group close to the first gear is fixed with a first rack, the first gear is meshed with the first rack, and one side of the fixed shell far away from the fixed cylinder is fixed with a cover body through screws.

Preferably, set casing inner wall sliding connection has the U-shaped board, U-shaped board inner wall bottom is fixed with the second rack, drive the casing inner wall and rotate through the bearing and be connected with the pivot, the one end that the pivot is close to the second rack is fixed with the second gear, and the second gear is connected with the meshing of second rack, the one end that the second gear was kept away from in the pivot is fixed with the worm wheel, the one end that drive the casing inner wall is close to the worm wheel is connected with the worm through the bearing rotation, and the worm wheel is connected with the worm meshing, drive the casing inner wall and be fixed with servo motor, and servo motor's output and worm fixed connection.

Preferably, the top of the lens group is fixed with a limit strip, the inner wall of the limit ring is provided with a sliding groove matched with the limit strip, and the limit strip is connected with the sliding groove in a sliding manner.

Preferably, one end of the cover body close to the lens group is provided with a through hole.

Preferably, the two ends of the U-shaped plate are symmetrically and rotatably connected with rollers through bearings.

Preferably, the drive shell inner wall is fixed with the controller, and gear motor and servo motor all with controller electric connection.

Preferably, the speed reduction motor is a worm speed reduction motor.

Preferably, the end, far away from the fixed ring, of the limiting strip is provided with a chamfer.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the utility model is used, the controller is electrically connected with the control chip in the projector, when people do not use the projector, people turn off the projector, at the moment, the control chip of the projector controls the speed reducing motor to rotate through the controller, and then drives the first gear to rotate, so that the first gear drives the first rack to move, and then drives the lens group to move, so that the lens group slowly slides into the inner wall of the fixed cylinder, at the moment, the servo motor rotates to drive the worm to rotate, and then drives the worm wheel to rotate, so that the worm wheel drives the rotating shaft to rotate, and then drives the second gear to rotate, so that the second gear drives the second rack to move, and further drives the U-shaped plate to move on the inner wall of the fixed shell, so that one end of the U-shaped plate slowly moves to one end of the lens group, so that the U-shaped plate blocks the through hole on the lens group in the fixed cylinder, prevent the lens of the lens group from scraping and being scratched, and also effectively prevent external dust from adhering to the lens of the lens group, thereby being convenient for people to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a second schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the structure of the fixing shell of the present invention;

FIG. 4 is a schematic view of the lens assembly of the present invention;

FIG. 5 is a schematic diagram of a controller according to the present invention;

fig. 6 is a schematic view of the U-shaped plate structure of the present invention.

In the figure: 1. a stationary case; 2. a fixed cylinder; 3. a limiting ring; 4. a lens group; 5. a fixing ring; 6. a drive case; 7. a reduction motor; 8. a first gear; 9. a first rack; 10. a cover body; 11. a U-shaped plate; 12. a second rack; 13. a rotating shaft; 14. a second gear; 15. a worm gear; 16. a worm; 17. a servo motor; 18. a limiting strip; 19. a roller; 20. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a short-focus lens with high protection safety comprises a fixed shell 1, a fixed cylinder 2, a limiting ring 3, a lens group 4, a fixed ring 5, a driving shell 6, a speed reduction motor 7, a first gear 8, a first rack 9 and a cover body 10, wherein the fixed cylinder 2 is fixed on one side of the fixed shell 1, the fixed cylinder 2 is communicated with the fixed shell 1, the limiting ring 3 is fixed at the middle part of the inner wall of the fixed cylinder 2, the lens group 4 is connected with the inner wall of the limiting ring 3 in a sliding manner, the fixed ring 5 is fixed at one end, close to the fixed shell 1, of the lens group 4, the fixed ring 5 is connected with the inner wall of the fixed cylinder 2 in a sliding manner, the driving shell 6 is fixed on one side, close to the fixed cylinder 2, of the fixed shell 1, the speed reduction motor 7 is fixed at the upper end of the inner wall of the driving shell 6, the output end of the speed reduction motor 7 penetrates through the driving shell 6 and is, the first gear 8 is meshed with the first rack 9, one side, far away from the fixed cylinder 2, of the fixed shell 1 is fixed with a cover body 10 through a screw, the inner wall of the fixed shell 1 is connected with a U-shaped plate 11 in a sliding manner, the bottom of the inner wall of the U-shaped plate 11 is fixed with a second rack 12, the inner wall of the driving shell 6 is connected with a rotating shaft 13 through a bearing in a rotating manner, one end, close to the second rack 12, of the rotating shaft 13 is fixed with a second gear 14, the second gear 14 is meshed with the second rack 12 in a connecting manner, one end, far away from the second gear 14, of the rotating shaft 13 is fixed with a worm wheel 15, one end, close to the worm wheel 15, of the inner wall of the driving shell 6 is connected with a worm 16 through a bearing in a rotating manner, the worm wheel 15 is meshed with the worm 16, the inner wall of the driving shell 6 is fixed with a servo motor 17, the output, when people do not use the projector, people turn off the projector, at this time, the control chip of the projector controls the reduction motor 7 to rotate through the controller 20, so as to drive the first gear 8 to rotate, so that the first gear 8 drives the first rack 9 to move, so as to drive the lens group 4 to move, so that the lens group 4 slowly slides into the inner wall of the fixed cylinder 2, at this time, the servo motor 17 rotates to drive the worm 16 to rotate, so as to drive the worm wheel 15 to rotate, so that the worm wheel 15 drives the rotating shaft 13 to rotate, so as to drive the second gear 14 to rotate, so that the second gear 14 drives the second rack 12 to move, so as to drive the U-shaped plate 11 to move on the inner wall of the fixed shell 1, so that one end of the U-shaped plate 11 slowly moves to one end of the lens group 4, so that the U-shaped plate 11 blocks the through hole on the cover body 10, so as to block the lens, scratch of the lens group 4 is prevented and also external dust is effectively prevented from adhering to the lens of the lens group 4.

The top of the lens group 4 is fixed with a limit strip 18, the inner wall of the limit ring 3 is provided with a sliding groove matched with the limit strip 18, and the limit strip 18 is connected with the sliding groove in a sliding manner, so that the lens group 4 is limited, and the lens group 4 is prevented from rotating.

The end of the cover body 10 close to the lens group 4 is provided with a through hole for the lens group 4 to extend out of the cover body 10.

The two ends of the U-shaped plate 11 are symmetrically and rotatably connected with the idler wheels 19 through bearings, so that the friction force between the U-shaped plate 11 and the fixed shell 1 is reduced.

The inner wall of the driving shell 6 is fixed with a controller 20, and the speed reducing motor 7 and the servo motor 17 are both electrically connected with the controller 20, so that the speed reducing motor 7 and the servo motor 17 can be controlled conveniently.

The speed reducing motor 7 is a worm speed reducing motor and prevents the lens group 4 from sliding freely in the fixed cylinder 2.

The one end that solid fixed ring 5 was kept away from to spacing 18 is equipped with the chamfer, is convenient for spacing 18 to insert the spout inner wall.

The working principle is as follows: when the projector is not used, the projector is turned off, the controller 20 controls the reduction motor 7 to rotate through the controller 20, so as to drive the first gear 8 to rotate, so that the first gear 8 drives the first rack 9 to move, and further drives the lens group 4 to move, so that the lens group 4 slowly slides into the inner wall of the fixed cylinder 2, at the same time, the servo motor 17 rotates to drive the worm 16 to rotate, and further drives the worm wheel 15 to rotate, so that the worm wheel 15 drives the rotating shaft 13 to rotate, and further drives the second gear 14 to rotate, so that the second gear 14 drives the second rack 12 to move, and further drives the U-shaped plate 11 to move on the inner wall of the fixed shell 1, so that one end of the U-shaped plate 11 slowly moves to one end of the lens group 4, so that the U-shaped plate 11 blocks the through hole on the cover body 10, so that the U-shaped plate 11 blocks the lens group 4 in the fixed cylinder 2, protects the lenses of the lens group 4, prevents the lenses of the lens group 4 from scratching, and also effectively prevents external dust from adhering to the lenses of the lens group 4.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a short burnt camera lens of security height, includes set casing (1), solid fixed cylinder (2), spacing ring (3), lens group (4), solid fixed ring (5), drive shell (6), gear motor (7), first gear (8), first rack (9) and lid (10), its characterized in that: the fixing device is characterized in that a fixing cylinder (2) is fixed on one side of the fixing shell (1), the fixing cylinder (2) is communicated with the fixing shell (1), a limiting ring (3) is fixed at the middle part of the inner wall of the fixing cylinder (2), a lens group (4) is connected to the inner wall of the limiting ring (3) in a sliding manner, a fixing ring (5) is fixed at one end, close to the fixing shell (1), of the lens group (4), the fixing ring (5) is connected with the inner wall of the fixing cylinder (2) in a sliding manner, a driving shell (6) is fixed at one side, close to the fixing cylinder (2), of the fixing shell (1), a speed reduction motor (7) is fixed at the upper end of the inner wall of the driving shell (6), an output end of the speed reduction motor (7) penetrates through the driving shell (6) to be fixed with a first gear (8), a first rack (9) is fixed at one side, close to the first gear (8), the first gear, and a cover body (10) is fixed on one side of the fixed shell (1) far away from the fixed cylinder (2) through screws.

2. The short-focus lens with high protection safety as claimed in claim 1, wherein: set casing (1) inner wall sliding connection has U-shaped board (11), U-shaped board (11) inner wall bottom is fixed with second rack (12), drive casing (6) inner wall rotates through the bearing and is connected with pivot (13), the one end that pivot (13) are close to second rack (12) is fixed with second gear (14), and second gear (14) are connected with second rack (12) meshing, the one end that second gear (14) were kept away from in pivot (13) is fixed with worm wheel (15), the one end that drive casing (6) inner wall is close to worm wheel (15) is connected with worm (16) through the bearing rotation, and worm wheel (15) are connected with worm (16) meshing, drive casing (6) inner wall is fixed with servo motor (17), and the output and worm (16) fixed connection of servo motor (17).

3. The short-focus lens with high protection safety as claimed in claim 1, wherein: the top of the lens group (4) is fixed with a limiting strip (18), the inner wall of the limiting ring (3) is provided with a sliding groove matched with the limiting strip (18), and the limiting strip (18) is connected with the sliding groove in a sliding manner.

4. The short-focus lens with high protection safety as claimed in claim 1, wherein: one end of the cover body (10) close to the lens group (4) is provided with a through hole.

5. The short-focus lens with high protection safety as claimed in claim 2, wherein: the two ends of the U-shaped plate (11) are symmetrically and rotatably connected with rollers (19) through bearings.

6. The short-focus lens with high protection safety as claimed in claim 1, wherein: the inner wall of the driving shell (6) is fixed with a controller (20), and the speed reducing motor (7) and the servo motor (17) are electrically connected with the controller (20).

7. The short-focus lens with high protection safety as claimed in claim 1, wherein: the speed reducing motor (7) is a worm speed reducing motor.

8. The short-focus lens with high protection safety as claimed in claim 3, wherein: and a chamfer is arranged at one end of the limiting strip (18) far away from the fixing ring (5).