CN211207028U

CN211207028U - Auxiliary focusing barrel

Info

Publication number: CN211207028U
Application number: CN202020020901.8U
Authority: CN
Inventors: 徐方达
Original assignee: Shanghai Yanding Information Technology Co ltd
Current assignee: Shanghai Yanding Information Technology Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-08-07
Anticipated expiration: 2030-01-03

Abstract

The utility model relates to the technical field of camera focusing, and discloses an auxiliary focusing barrel, which comprises a lens body, wherein the lens body is fixedly connected with a lens mounting seat, the upper end of the lens mounting seat is fixedly connected with a plurality of sliders, the sliders are connected with a threaded shaft in a threaded manner, the right side of the threaded shaft is fixedly connected with a first gear, the first gear is meshed with a second gear, the center of the second gear is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with a protective shell, the left end of the rotating shaft is fixedly connected with a rotating wheel, the lower side of the protective shell is fixedly connected with a mounting barrel, a left side clamping plate, a pin shaft, a right side clamping plate and a torsional spring are arranged, the focusing barrel can be fixed at the position of a mobile phone camera by utilizing the pressing force of the torsional spring, the rotating wheel is arranged, when focusing is needed, the camera focusing of the mobile phone is realized by utilizing the external lens, and the camera focusing device has a utilizable value in the technical field of camera focusing.

Description

Auxiliary focusing barrel

Technical Field

The utility model relates to a technical field that focuses of making a video recording specifically is an auxiliary focusing section of thick bamboo.

Background

Focusing means that a focal distance is adjusted when a camera is used, generally, a digital camera has a plurality of focusing modes, namely an automatic focusing mode, a manual focusing mode and a multiple focusing mode, focusing is also called as focusing and focusing, the object distance and the distance position are changed through a camera focusing mechanism, the process of imaging a shot object clearly is focusing, manual focusing is realized, the method is a focusing mode which adjusts a camera lens through manually rotating a focusing ring so as to enable a shot picture to be clear, the mode greatly depends on the judgment of human eyes on an image on a focusing screen and the proficiency of a photographer even the eyesight of the photographer, an early single-lens reflex camera and a paraxial camera basically use manual focusing to complete focusing operation, focusing is equivalent to focusing, an image distance v is changed, and the imaging formula 1/u +1/v is 1/f, so as to form a sharp image on the film.

Nowadays, a mobile phone is a common auxiliary device, and the mobile phone has various functions, such as telephone, camera shooting, game and the like. Most market cell-phones all possess the function of making a video recording, and the function of making a video recording is also very different, and to some hobby personnel of making a video recording, rely on the single lens reflex camera to make a video recording, and the cost is too high, and the focusing function of cell-phone self-carrying can not be complete the effect of shooing wanted, can consider to use an external focusing section of thick bamboo to assist the cell-phone to make a video recording focus.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary focusing tube 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:

the utility model provides an auxiliary focusing barrel, includes the lens body, lens body fixed connection lens mount pad, a plurality of slider of lens mount pad upper end fixed connection, slider inner wall threaded connection screw shaft, the first gear of screw shaft right side fixedly connected with, first gear engagement connects the second gear, the central fixed connection pivot of second gear, and the protective housing is connected in the pivot rotation, pivot left end fixed connection runner, protective housing downside fixed connection installation section of thick bamboo, installation section of thick bamboo inner wall left side fixed connection protection lens, installation section of thick bamboo right side threaded connection left side splint, and the connecting pin axle is rotated to left side splint upside, and the round pin axle rotates and connects right side splint.

As a further aspect of the present invention: the lower end of the lens mounting seat is fixedly connected with a slide rail,

as a further aspect of the present invention: the slide rail is connected with the slide groove in a sliding manner.

As a further aspect of the present invention: the right side of the upper end of the mounting cylinder is provided with a notch.

As a further aspect of the present invention: the pin shaft is provided with a torsional spring.

As a further aspect of the present invention: anti-skidding grooves are formed in the left side clamping plate and the right side clamping plate.

As a further aspect of the present invention: the right side of the left side clamping plate is fixedly connected with a rubber ring, and the left side of the right side clamping plate is fixedly connected with a rubber pad.

As a further aspect of the present invention: the threaded shaft and the mounting cylinder are respectively provided with a bearing at the connecting position, and the bearings are arranged at the connecting positions of the rotating shaft and the protective shell.

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

through the utility model discloses a supplementary section of thick bamboo of focusing sets up left side splint, round pin axle, right side splint and torsional spring, can utilize torsional spring packing force, will fix the position at cell-phone camera to a section of thick bamboo of focusing, sets up the runner, can realize controlling the internal lens body through rotating the runner when needs are focused to realize the change of focus, accomplish and focus, the utility model discloses simple structure utilizes external lens to realize that the cell-phone is made a video recording and is focused, and it has usable value to focus technical field at making a video recording.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary focusing barrel.

Fig. 2 is a left side view of the structure of fig. 1.

Fig. 3 is a schematic view of a connection structure of a left clamp plate and a right clamp plate in the auxiliary focusing cylinder.

Fig. 4 is a schematic structural diagram of a lens mount in an auxiliary focusing barrel.

In the figure: 1-rubber pad, 2-antiskid groove, 3-right side splint, 4-pin shaft, 5-left side splint, 6-protective shell, 7-threaded shaft, 8-slider, 9-installation cylinder, 10-protective lens, 11-chute, 12-slide rail, 13-lens installation seat, 14-lens body, 15-rubber ring, 16-notch, 17-first gear, 18-runner, 19-rotating shaft, 20-second gear and 21-torsion spring.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "middle", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

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.

Example 1

Referring to fig. 1, 2 and 4, an auxiliary focusing barrel includes a lens body 14, the lens body 14 is fixedly connected to a lens mounting base 13, the lower end of the lens mounting base 13 is fixedly connected to a slide rail 12, the slide rail 12 is slidably connected to a slide groove 11, the slide groove 11 is provided with a guiding function, the upper end of the lens mounting base 13 is fixedly connected to a plurality of sliders 8, the inner wall of each slider 8 is connected to a threaded shaft 7 through a thread, the right side of the threaded shaft 7 is fixedly connected to a first gear 17, the first gear 17 is engaged with a second gear 20, the center of the second gear 20 is fixedly connected to a rotating shaft 19, the rotating shaft 19 is rotatably connected to a protective housing 6, the left end of the rotating shaft 19 is fixedly connected to a rotating wheel 18, the rotating wheel 18 is manually rotated to drive the threaded shaft 7 to rotate the sliders 8, the sliders 8 are fixed to the lens mounting base 13 to drive, realize the change of focus, set up the effect that protective housing 6 has the support, protect the gear simultaneously, avoid the gear to receive external influence card dead, 6 downside fixed connection installation section of thick bamboo 9 of protective housing, open on 9 upper ends right sides of installation section of thick bamboo has

notch

16, and 9 inner walls of installation section of thick bamboo left side fixed connection protection lens 10, installation section of thick bamboo 9 right side threaded connection left side splint 5 set up protection lens 10 and prevent external dust pollution lens body 14, threaded shaft 7 and installation section of thick bamboo 9 hookup location all are provided with the bearing, and

pivot

19 and 6 hookup location of protective housing are provided with the bearing, and the bearing can effectively reduce coefficient of friction.

Referring to fig. 3, the upper side of the left clamp plate 5 is rotatably connected with a pin shaft 4, the pin shaft 4 is provided with a torsion spring 21, the pin shaft 4 is rotatably connected with the right clamp plate 3, the left clamp plate 5 and the right clamp plate 3 are both provided with anti-slip grooves 2, and the left clamp plate 5, the pin shaft 4, the right clamp plate 3 and the torsion spring 21 are arranged, so that the focusing barrel can be fixed at the position of the mobile phone camera by using the spring pressing force of the torsion spring 21.

Example 2

Referring to fig. 1, the difference between this embodiment and the above embodiment 1 is that the right side of the left side clamping plate 5 is fixedly connected with a rubber ring 15, the left side of the right side clamping plate 3 is fixedly connected with a rubber pad 1, and the rubber pad 1 converts rigid contact into elastic contact, thereby protecting the mobile phone from being scratched by the rigid clamping plate.

The utility model discloses a theory of operation is: the utility model provides an auxiliary focusing section of thick bamboo, when needs utilize focusing section of thick bamboo to focus, the front end at cell-phone camera is fixed with the barrel to the clamp force that utilizes left side splint 5 and right side splint 3, then realizes controlling inside lens body 14 through rotating runner 18 to realize the change of focus, accomplish and focus, the utility model discloses simple structure utilizes external lens to realize that the cell-phone is made a video recording and is focused, and it has usable value to focus technical field making a video recording.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. An auxiliary focusing cylinder comprises a lens body (14) and is characterized in that the lens body (14) is fixedly connected with a lens mounting seat (13), the upper end of the lens mounting seat (13) is fixedly connected with a plurality of sliding blocks (8), the inner wall of each sliding block (8) is in threaded connection with a threaded shaft (7), the right side of each threaded shaft (7) is fixedly connected with a first gear (17), the first gear (17) is meshed with a second gear (20), the center of each second gear (20) is fixedly connected with a rotating shaft (19), the rotating shaft (19) is rotatably connected with a protective shell (6), the left end of the rotating shaft (19) is fixedly connected with a rotating wheel (18), the lower side of the protective shell (6) is fixedly connected with a mounting cylinder (9), the left side of the inner wall of the mounting cylinder (9) is fixedly connected with a protective lens (10), the right side of the mounting cylinder (9) is, the pin shaft (4) is rotationally connected with the right clamping plate (3).

2. The auxiliary focusing barrel according to claim 1, wherein the lower end of the lens mounting seat (13) is fixedly connected with a sliding rail (12).

3. Auxiliary focusing barrel according to claim 2, characterized in that the sliding rail (12) is slidingly connected with a sliding groove (11).

4. The auxiliary focusing barrel according to claim 1, characterized in that the right side of the upper end of the mounting barrel (9) is provided with a notch (16).

5. Auxiliary focusing barrel according to claim 1, characterized in that a torsion spring (21) is arranged on the pin (4).

6. The auxiliary focusing barrel according to claim 1, characterized in that the left clamping plate (5) and the right clamping plate (3) are provided with anti-slip grooves (2).

7. The auxiliary focusing barrel according to claim 1 or 5, characterized in that a rubber ring (15) is fixedly connected to the right side of the left clamping plate (5), and a rubber pad (1) is fixedly connected to the left side of the right clamping plate (3).

8. The auxiliary focusing barrel according to claim 1, characterized in that the connecting position of the threaded shaft (7) and the mounting barrel (9) is provided with a bearing, and the connecting position of the rotating shaft (19) and the protective shell (6) is provided with a bearing.