Driving device applied to focusing or focusing of camera lens barrel

Abstract

The utility model discloses a driving device applied to focusing or focusing of a camera lens barrel, which is characterized by comprising a lens barrel, the lens barrel integrally extends towards the outer side to form a mounting convex part, the mounting convex part is provided with a mounting through hole arranged along the extension direction of the mounting convex part, the mounting through hole is provided with an adjusting shaft, and the adjusting shaft is connected with the lens barrel. A knob is mounted at the outer end of the adjusting shaft, and a first gear is mounted at the outer end of the adjusting shaft; the lens barrel is also provided with a second gear engaged with the first gear, and the second gear is used for focusing or focusing of the camera lens barrel. Thus, through specific improvement of the driving device of the camera waterproof shell, the design of a guide sleeve in the prior art is omitted, assembly is facilitated, the manufacturing cost is saved, and the camera waterproof shell is more suitable for industrial application; and secondly, due to the arrangement of the positioning shaft hole, the working stability and reliability of the device are further improved.

Description

Technical Field

[0001] The utility model relates to the field of camera waterproof shells, in particular to a driving device used for focusing or focusing of a camera lens barrel. Background Art

[0002] Since the camera lens has automatic focus adjustment and manual focus functions, when taking underwater photos, the camera is placed in a waterproof shell to protect the normal use of the camera underwater. When the photographer enters the underwater photography, he cannot directly adjust the focus of the lens from the outside, and some larger lenses cannot be driven by the zoom gear on the shell. Therefore, there is an urgent need for a device that can focus or zoom the lens outside the shell. Later, there appeared a zoom or focus device installed on the lens barrel (CN209746243U), which includes a lens barrel and a guide sleeve and an adjustment shaft installed on the lens barrel. The guide sleeve and the lens barrel are assembled and connected by correspondingly arranging internal threads and external threads on the lens barrel and the guide sleeve. However, this driving structure is relatively complicated, and the production efficiency is not high enough, which is not conducive to manufacturers reducing costs.

[0003] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0004] In order to solve the defects and shortcomings of the above-mentioned prior art, the utility model provides a driving device for focusing or focusing a camera lens barrel. By specifically improving the driving device of the camera waterproof housing, the design of the guide sleeve in the prior art is omitted, which facilitates assembly, saves manufacturing costs, and is more suitable for industrial applications. Secondly, through the setting of the positioning shaft hole, the working stability and reliability of the device are further improved.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A driving device used for focusing or focusing a camera lens barrel comprises a lens barrel, wherein the lens barrel is integrally provided with a mounting protrusion extending outward, the mounting protrusion has a mounting through hole arranged along the extending direction of the mounting protrusion, an adjusting shaft is installed in the mounting through hole, a knob is installed at the outer end of the adjusting shaft, and a first gear is installed at the outer end of the adjusting shaft; the lens barrel is also provided with a second gear meshing with the first gear, and the second gear is used for focusing or focusing the camera lens barrel.

[0007] As a preferred embodiment, a mounting seat is included, the second gear is arranged on the mounting seat, a positioning shaft hole is arranged on one side of the second gear on the mounting seat, the adjusting shaft passes through the positioning shaft hole from the outside of the positioning shaft hole, and the first gear is located on the inside of the positioning shaft hole and meshes with the first gear.

[0008] As a preferred solution, the mounting seat is detachably mounted on the lens barrel by means of screws, and the lens barrel is provided with a mounting recess adapted to the mounting seat.

[0009] As a preferred solution, the mounting seat includes a first mounting block and a second mounting block mounted on the first mounting block, the second gear is mounted on the second mounting block, and the positioning shaft hole is mounted on the second mounting block; the mounting recess is adapted to the first mounting block.

[0010] As a preferred solution, the outer circumferential surface of the adjusting shaft is provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are arranged at intervals along the axial length direction of the adjusting shaft, the first mounting groove is installed with a first sealing ring, and the second mounting groove is installed with a second sealing ring.

[0011] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly omits the design of the guide sleeve in the prior art through the specific improvement of the driving device of the camera waterproof housing, which facilitates assembly, saves manufacturing costs, and is more suitable for industrial application; secondly, through the setting of the positioning shaft hole, the working stability and reliability of the device are further improved; and, through the specific setting of the mounting seat, the manufacturing difficulty of the process is further reduced.

[0012] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a first exploded schematic diagram of an embodiment of the utility model;

[0015] Figure 3 for Figure 2 A partial enlarged view of

[0016] Figure 4 It is a second exploded schematic diagram of an embodiment of the utility model;

[0017] Figure 5 for Figure 4 A partial enlarged view of

[0018] Figure 6 A cross-sectional schematic diagram of an embodiment of the utility model;

[0019] Figure 7 for Figure 6 A partial enlarged view of .

[0020] Description of the accompanying drawings:

[0021] 10. Lens barrel; 11. Mounting protrusion; 12. Second gear; 13. Mounting recess; 20. Adjustment shaft; 21. Knob; 22. First gear; 30. Mounting seat; 301. Positioning shaft hole; 31. First mounting block; 32. Second mounting block; 41. First sealing ring; 42. Second sealing ring. DETAILED DESCRIPTION

[0022] The following will provide a clear and complete description of the technical solutions in the present embodiment of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only preferred embodiments of the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] See attached Figures 1 to 7 In an embodiment of the utility model, a driving device for focusing or focusing a camera lens barrel includes a lens barrel 10, wherein the lens barrel 10 is integrally extended with a mounting protrusion 11 to the outside, wherein the mounting protrusion 11 has a mounting through hole arranged along the extending direction of the mounting protrusion 11, wherein an adjusting shaft 20 is installed in the mounting through hole, wherein a knob 21 is installed at the outer end of the adjusting shaft 20, wherein a first gear 22 is installed at the outer end of the adjusting shaft 20; the lens barrel 10 is also installed with a second gear 12 meshing with the first gear 22, wherein the second gear 12 is used for focusing or focusing the camera lens barrel.

[0026] In this way, by integrally extending the mounting protrusion 11 on the lens barrel 10 , the production and assembly of the driving device are simplified, and the assembly is more convenient, which is beneficial to saving costs and improving production efficiency.

[0027] Furthermore, the driving device of this embodiment further includes a mounting seat 30, the second gear 12 is disposed on the mounting seat 30, the mounting seat 30 is provided with a positioning shaft hole 301 on one side of the second gear 12, the adjusting shaft 20 passes through the positioning shaft hole 301 from the outside of the positioning shaft hole 301, and the first gear 22 is located on the inside of the positioning shaft hole 301 and meshes with the first gear 22. In this way, by providing the positioning shaft hole 301, the installation stability of the adjusting shaft 20 is further improved.

[0028] Specifically, the mounting seat 30 is detachably mounted on the lens barrel 10 by screws, and the lens barrel 10 is provided with a mounting recess 13 adapted to the mounting seat 30. In this way, by setting the mounting recess 13 for pre-positioning, the stability of assembly and the accuracy of installation are further provided to avoid excessive position deviation.

[0029] Preferably, the mounting seat 30 includes a first mounting block 31 and a second mounting block 32 mounted on the first mounting block 31, the second gear 12 is mounted on the second mounting block 32, and the positioning shaft hole 301 is mounted on the second mounting block 32; the mounting recess 13 is adapted to the first mounting block 31; thus, by dividing the mounting seat 30 into the first mounting block 31 and the second mounting block 32, the manufacturing difficulty of the injection mold is reduced, and the production efficiency is further improved. In practical applications, the first mounting block 31 can be provided with a slide groove, and the second mounting block 32 can be slidably and adjustable to the slide groove, so as to achieve fine-tuning installation of the second mounting block 32, and better ensure the accuracy of assembly.

[0030] Furthermore, a first mounting groove and a second mounting groove are provided on the outer peripheral surface of the adjusting shaft 20, and the first mounting groove and the second mounting groove are arranged at intervals along the axial length direction of the adjusting shaft 20. The first mounting groove is installed with a first sealing ring 41, and the second mounting groove is installed with a second sealing ring 42; in this way, the waterproof performance of the driving device of this embodiment is ensured.

[0031] The design focus of the utility model is that it omits the design of the guide sleeve in the prior art mainly through specific improvements to the driving device of the camera waterproof housing, which facilitates assembly, saves manufacturing costs, and is more suitable for industrial applications; secondly, through the setting of the positioning shaft hole, the working stability and reliability of the device are further improved; and, through the specific setting of the mounting seat, the manufacturing difficulty of the process is further reduced.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A driving device for focusing or focusing a camera lens barrel, characterized in that: The invention comprises a lens barrel, which has a mounting protrusion extending outwards, the mounting protrusion having a mounting through hole arranged along the extending direction of the mounting protrusion, the mounting through hole being installed with an adjusting shaft, the outer end of the adjusting shaft being installed with a knob, the outer end of the adjusting shaft being installed with a first gear; the lens barrel is also installed with a second gear meshing with the first gear, the second gear is used for focusing or focusing the camera lens barrel.

2. A driving device for focusing or focusing a camera lens barrel according to claim 1, characterized in that: It includes a mounting seat, the second gear is arranged on the mounting seat, the mounting seat is provided with a positioning shaft hole on one side of the second gear, the adjusting shaft passes through the positioning shaft hole from the outside of the positioning shaft hole, and the first gear is located on the inside of the positioning shaft hole and meshes with the first gear.

3. A driving device for focusing or focusing a camera lens barrel according to claim 2, characterized in that: The mounting seat is detachably mounted on the lens barrel by means of screws, and the lens barrel is provided with a mounting recess adapted to the mounting seat.

4. A driving device for focusing or focusing a camera lens barrel according to claim 3, characterized in that: The mounting seat includes a first mounting block and a second mounting block mounted on the first mounting block, the second gear is mounted on the second mounting block, and the positioning shaft hole is mounted on the second mounting block; the mounting recess is adapted to the first mounting block.

5. A driving device for focusing or focusing a camera lens barrel according to claim 4, characterized in that: The outer circumferential surface of the adjusting shaft is provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are arranged at intervals along the axial length direction of the adjusting shaft, the first mounting groove is installed with a first sealing ring, and the second mounting groove is installed with a second sealing ring.

Images