CN211086875U

CN211086875U - Adjustable structure of lens

Info

Publication number: CN211086875U
Application number: CN201922085403.1U
Authority: CN
Inventors: 何宇; 陈三忠; 厉冰川; 尚洁阳; 张�杰
Original assignee: Jiaxing Zhongrun Optical Technology Co Ltd
Current assignee: Jiaxing Zhongrun Optical Technology Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-07-24
Anticipated expiration: 2029-11-28

Abstract

A lens adjustable structure, comprising: the box cover is arranged on the box body, and the switching mechanism is arranged in the box body and connected with the box cover; be equipped with the spirochaeta on the driven gear, the spirochaeta sets up and leans on box body bottom one end on the driven gear, and this spirochaeta includes helicoid and calorie post, wherein: when the spiral body rotates, the spiral surface and the clamping column are sequentially contacted with the limiting block. The utility model discloses a helicoid on gear engagement and the gear drives the guide shaft and carries out the up-and-down motion to realize regulatory function, simple structure, it is with low costs, occupation space is little.

Description

Adjustable structure of lens

Technical Field

The utility model relates to a technique in camera lens field of adjusting specifically is a camera lens adjustable structure who converts rotary motion into linear motion.

Background

Compared with the traditional contact type driving mode, the non-contact type driving mode of the lens for the security field has a series of advantages of long service life, high speed and the like, but when power-off transportation, sudden power-off and a possible non-electric state occur, the mobile group can collide and deviate along with external jolt or impact, so that the precision and the imaging of the lens optical system are influenced. The rotation movement has the problems of large occupied space and unstable embedding in an adjusting mode for locking, and the hidden danger of increasing the external size of the lens is caused by facing a moving group moving along an optical axis.

SUMMERY OF THE UTILITY MODEL

The utility model discloses can't be the linear motion regulation with the rotation regulation conversion to prior art, adjust the fixed single not enough of drive mode, provide a camera lens adjustable structure, drive the guide shaft through the helicoid on gear engagement and the gear and carry out the up-and-down motion to realize regulatory function, simple structure, it is with low costs, occupation space is little.

The utility model discloses a realize through following technical scheme:

The utility model discloses a: box body, lid and shifter, wherein: the box cover is arranged on the box body, and the switching mechanism is arranged in the box body and connected with the box cover.

The driven gear on be equipped with the spirochaeta, wherein: the spirochaeta sets up and leans on box body bottom one end on driven gear, and this spirochaeta includes helicoid and calorie post, wherein: when the spiral body rotates, the spiral surface and the clamping column are sequentially contacted with the limiting block.

The conversion mechanism comprises: driving gear, driven gear, guide shaft and elastic construction, wherein: the guide shaft is arranged in the box body, two ends of the guide shaft penetrate through the box body and the box cover, the driven gear is arranged at one end, close to the bottom of the box body, of the guide shaft, the elastic structure is arranged at one end, close to the box cover, of the guide shaft, and the driving gear is connected with the box cover and meshed with the driving gear.

The bottom of the box body is provided with a first limiting hole connected with the guide shaft; the box cover is provided with a second limiting hole connected with the guide shaft and the driving gear.

The box body on be equipped with the stopper, wherein: the limiting block is connected with the driven gear.

The tail end of the clamping column is provided with a clamping column top surface used for limiting the lower limit of the displacement of the driven gear.

The guide shaft is provided with an annular block for separation, wherein: the annular block is arranged between the driven gear and the elastic structure to limit the displacement upper limit of the driven gear.

The elastic structure is a compression spring.

Technical effects

Compared with the prior art, the utility model discloses a helicoid on gear engagement and the gear drives the guide shaft and carries out the up-and-down motion to realize regulatory function, simple structure, it is with low costs, occupation space is little.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic view of the lower limit structure of the present invention;

FIG. 3 is a schematic view of the upper limit structure of the present invention;

Fig. 4 is a schematic structural view of the driven gear of the present invention;

FIG. 5 is a schematic view of the connection motor of the present invention;

FIG. 6 is a schematic view of the structure of the connection rocking handle of the present invention;

In the figure: the box body 1, the box cover 2, the driving gear 3, the driven gear 4, the guide shaft 5, the elastic structure 6, the first limit hole 7, the conversion mechanism 8, the spiral body 9, the spiral surface 10, the clamping column top surface 11, the clamping column 12, the annular block 13, the motor 14, the rocking handle 15, the limit block 16 and the second limit hole 17.

Detailed Description

Example 1

As shown in fig. 1, an adjustable lens structure according to the present embodiment includes: box body 1, lid 2 and shifter 3, wherein: the box cover 2 is arranged on the box body 1, and the switching mechanism 8 is arranged in the box body 1 and connected with the box cover 2.

The conversion mechanism 8 includes: driving gear 3, driven gear 4, guide shaft 5 and elastic construction 6, wherein: the guide shaft 5 is arranged in the box body 1, two ends of the guide shaft penetrate through the box body 1 and the box cover 2, the driven gear 4 is arranged at one end, close to the bottom of the box body 1, of the guide shaft 5, the elastic structure 6 is arranged at one end, close to the box cover 2, of the guide shaft 5, and one end of the driving gear 3 penetrates through the box cover 2 and is meshed with the driving gear 3.

The bottom of the box body 1 is provided with a first limiting hole 7 connected with the guide shaft 5.

The box body 1 is provided with a limiting block 16, and the limiting block 16 is connected with the driven gear 4.

The box cover 2 is provided with a second limit hole 17 connected with the guide shaft 5 and the driving gear 3.

The guide shaft 5 is provided with an annular block 13 for separation, wherein: an annular block 13 is provided between the driven gear 4 and the resilient structure 6 to limit the upper limit of displacement of the driven gear.

The elastic structure 6 is a compression spring.

As shown in fig. 4, the driven gear 4 is provided with a spiral body 9, wherein: the spiral body 9 is arranged at one end of the driven gear 4 close to the bottom of the box body 1.

The spiral body 9 comprises a spiral surface 10 and a clamping column 12, wherein: when the spiral body 9 rotates, the spiral surface 10 and the clamping column 12 are sequentially contacted with the limiting block 16.

As shown in fig. 5, the driving gear 3 is connected to the motor 14, when the motor 14 drives the driving gear 3 to rotate, the driving gear 3 drives the driven gear 4 to rotate, the spiral surface 10 contacts with the limiting block 16 on the box body 1, and the guiding shaft 5 is gradually pushed to move up and down to enter or exit the limiting hole 7.

The end of the clamping column 12 is provided with a clamping column top surface 11 used for limiting the displacement lower limit of the driven gear 4.

Example 2

As shown in fig. 6, the structure of the present embodiment is the same as that of embodiment 1, except that: in this embodiment, the driving gear 3 is connected with the rocking handle 15, and when the rocking handle 15 drives the driving gear 3 to rotate, the driving gear 3 drives the driven gear 4 to rotate, the helicoid 10 contacts with the limiting block 16 on the box body 1, and the guide shaft 5 is gradually pushed to move up and down to enter or exit from the limiting hole 7.

The foregoing embodiments may be modified in various ways by those skilled in the art without departing from the spirit and scope of the present invention, which is not limited by the above embodiments but is to be accorded the full scope defined by the appended claims, and all such modifications and variations are within the scope of the invention.

Claims

1. An adjustable lens structure, comprising: box body, lid and shifter, wherein: the box cover is arranged on the box body, and the switching mechanism is arranged in the box body and connected with the box cover;

The conversion mechanism comprises: driving gear, driven gear, guide shaft and elastic construction are equipped with the spirochaeta on this driven gear, and the spirochaeta sets up and leans on box body bottom one end on driven gear, and this spirochaeta includes helicoid and calorie post, wherein: when the spiral body rotates, the spiral surface and the clamping column are sequentially contacted with the limiting block.

2. The adjustable lens structure according to claim 1, wherein the guide shaft is disposed in the case and has both ends penetrating the case and the cover, the driven gear is disposed on the guide shaft at an end near the bottom of the case, the elastic structure is disposed on the guide shaft at an end near the cover, and the driving gear is connected to the cover and engaged with the driving gear.

3. The adjustable lens structure according to claim 1, wherein the bottom of the case body is provided with a first limiting hole connected with the guide shaft; the box cover is provided with a second limiting hole connected with the guide shaft and the driving gear.

4. A lens adjustable structure according to claim 1, wherein a stopper is provided on the case, wherein: the limiting block is connected with the driven gear.

5. The lens barrel adjusting structure according to claim 1, wherein the end of the catch has a catch top surface for limiting a lower limit of displacement of the driven gear.

6. The lens adjustable structure as claimed in claim 1, wherein the guide shaft is provided with a ring block for partitioning, wherein: the annular block is arranged between the driven gear and the elastic structure to limit the displacement upper limit of the driven gear.

7. The adjustable lens structure as claimed in claim 6, wherein the elastic structure is a compression spring.