A camera focusing drive component used in a camera waterproof housing

Abstract

The utility model discloses a camera focus drive assembly applied to a camera waterproof shell, including a drive rod, the drive rod is equipped with a first transmission member and a focusing knob, the first transmission member is connected to the second transmission member in a transmission manner; the first transmission member is provided with a first gear, the second transmission member is provided with a second gear and a third gear; the drive rod is provided with a locking knob for locking the drive assembly to the waterproof shell and a compression spring for pushing the drive assembly to move toward the first gear. In this way, the stability of camera installation and use is improved by the specific setting of the focus drive assembly; specifically, by installing a locking knob on the drive shaft, the drive assembly can play a evasive role when the camera is installed in the waterproof shell, thereby ensuring the accurate installation of the camera; by installing a compression spring on the drive shaft, it is ensured that the drive assembly is pressed against the camera lens, thereby ensuring the reliability and accuracy of focusing.

Description

Technical Field

[0001] The utility model relates to the field of camera waterproof shells, in particular to a camera focus driving component applied to the camera waterproof shell. Background Art

[0002] Since the camera lens has zoom and focus functions, when taking underwater photos, the camera is placed in a waterproof housing 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. Therefore, there is an urgent need for a focus drive device that can adjust the zoom and focus of the lens outside the housing. Some waterproof housings for underwater cameras on the market are now equipped with focus drive devices, but the existing focus drive devices are not installed with an avoidance function, resulting in the camera often coming into hard contact with the focus drive device during the process of being installed in the waterproof housing. Over time, the focus drive device or the camera is easily damaged; secondly, the structure of the existing focus drive device is not compact and clever enough, and it occupies more internal space of the waterproof housing, which is not conducive to the installation design of other drive modules of the camera waterproof housing.

[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 camera focus drive assembly applied to a camera waterproof housing, which improves the stability of camera installation and use through the specific setting of the focus drive assembly; specifically, by installing a locking knob on the drive shaft, the drive assembly can play a evasive role when the camera is installed in the waterproof housing, thereby ensuring the accurate installation of the camera; by installing a compression spring on the drive shaft, it is ensured that the drive assembly presses the camera lens, thereby ensuring the reliability and accuracy of focusing.

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

[0006] A camera focus drive assembly applied to a camera waterproof housing comprises a drive rod, a first transmission member is installed at one end of the drive rod, a focus knob is installed at the other end of the drive rod, the first transmission member is transmission-connected with a second transmission member; the first transmission member is provided with a first gear, the second transmission member is provided with a second gear meshing with the first gear, and the second transmission member is further provided with a third gear for driving a camera lens;

[0007] The driving rod is provided with a locking knob for locking the driving assembly to the waterproof shell and a compression spring for pushing the driving assembly to move toward the first gear side.

[0008] As a preferred solution, a toggle protrusion is provided on the inner side of the locking knob, and a guiding inclined surface adapted to the corresponding waterproof shell is provided on the inner side surface of the toggle protrusion.

[0009] As a preferred solution, the convex part of the activation is provided with a concave part of the activation for convenient manual operation.

[0010] As a preferred solution, the first transmission member and the second transmission member are arranged perpendicular to each other, the first gear and the second gear are both bevel gears; and the third gear is a spur gear.

[0011] As a preferred solution, the second gear and the third gear are integrally formed on the second transmission member.

[0012] As a preferred solution, it also includes a mounting block, which includes a first plate body and a second plate body, the first plate body is provided with a first shaft column for mounting the second transmission member; the second plate body is provided with an shaft hole for the driving rod to pass through.

[0013] As a preferred solution, the first plate body is provided with a strip-shaped limiting groove extending in the same direction as the driving rod, and the limiting groove is provided with a limiting block.

[0014] As a preferred solution, two strip-shaped limit grooves are provided on the first plate body, and the first shaft column is provided between the two strip-shaped limit grooves.

[0015] 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 the stability of camera installation and use is improved mainly by the specific setting of the focus drive assembly; specifically, by installing a locking knob on the drive shaft, the drive assembly can play a evasive role when the camera is installed in the waterproof shell, thereby ensuring the accurate installation of the camera; by installing a compression spring on the drive shaft, the drive assembly is guaranteed to press the camera lens, thereby ensuring the reliability and accuracy of focusing;

[0016] Secondly, through the ingenious arrangement of the first transmission member and the second transmission member, the internal space occupied by the drive component in the waterproof shell is further optimized, which has many advantages such as compact structure and small space occupation.

[0017] 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

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the utility model;

[0019] Figure 2This is an exploded schematic diagram of the first embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the locking knob in the first embodiment of the present utility model;

[0021] Figure 4 It is a cross-sectional schematic diagram of the first embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the application of an embodiment of the utility model;

[0023] Figure 6 for Figure 5 A partial enlarged view of

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the second embodiment of the utility model;

[0025] Figure 8 It is a three-dimensional structural schematic diagram of another angle of the second embodiment of the present utility model.

[0026] Description of the accompanying drawings:

[0027] 10. Driving rod; 11. First transmission member; 111. First gear; 12. Focusing knob; 20. Second transmission member; 21. Second gear; 22. Third gear; 30. Locking knob; 31. Moving protrusion; 311. Guide slope; 312. Moving recess; 40. Compression spring; 50. Mounting block; 51. First plate; 511. First shaft column; 512. Strip limiting groove; 513. Limiting block; 52. Second plate; 60. Waterproof shell; 61. Locking part. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] See attached Figures 1 to 8 In an embodiment of the utility model, a camera focus drive assembly applied to a camera waterproof shell includes a drive rod 10, one end of the drive rod 10 is installed with a first transmission member 11, the other end of the drive rod 10 is installed with a focus knob 12, the first transmission member 11 is connected to the second transmission member 20; the first transmission member 11 is provided with a first gear 111, the second transmission member 20 is provided with a second gear 21 meshing with the first gear 111, and the second transmission member 20 is also provided with a third gear 22 for driving the camera lens; the drive rod 10 is provided with a locking knob 30 for locking the focus drive assembly to the waterproof shell 60 and a compression spring 40 for pushing the focus drive assembly to move toward the first gear 111 side (right side).

[0032] During installation, when the camera is loaded into the waterproof housing 60, the focus drive assembly of the present embodiment is kept loose (i.e., the locking knob 30 is kept loosened). When the camera is loaded, the drive assembly will be pushed to the left a certain distance. After the camera is installed in place, the locking knob 30 is locked by rotating the locking knob 30. Under the action of the compression spring 40, the third gear 22 compresses the camera lens. Furthermore, the user can adjust the zoom and focus of the camera lens by rotating the focusing knob 12.

[0033] Specifically, the inner side of the locking knob 30 is provided with a toggle protrusion 31, and the inner side surface (right side surface) of the toggle protrusion 31 is provided with a guide inclined surface 311 adapted to the waterproof shell 60. Figure 3 , Figure 5 and Figure 6 As shown, in actual application, the camera waterproof housing 60 has a locking portion 61 (locking slot) adapted to the driving protrusion 31, and the locking portion 61 has a guiding side surface adapted to the guiding inclined surface 311. Through the mutual cooperation of the guiding inclined surface 311 and the guiding side surface, the driving protrusion 31 can be screwed in (locked) and screwed out (loosened) in the locking slot. It is common sense that when the driving protrusion 31 is to be screwed out of the locking slot, due to the oblique movement, a greater force is often required, thereby realizing the locking of the focus drive assembly of this embodiment.

[0034] Furthermore, the moving protrusion 31 is provided with a moving recess 312 for convenient manual operation, and the moving recess 312 is adapted to a thumb of an ordinary person, so that the user can move the moving protrusion 31 with one finger.

[0035] Specifically, the first transmission member 11 and the second transmission member 20 are arranged perpendicularly to each other, and the first gear 111 and the second gear 21 are both bevel gears; the third gear 22 is a spur gear. The second gear 21 and the third gear 22 are integrally formed on the second transmission member 20. The focusing drive assembly of this embodiment also includes a mounting block 50, and the mounting block 50 includes a first plate body 51 and a second plate body 52. ​​The first plate body 51 and the second plate body 52 are usually arranged perpendicularly to each other, and the first plate body 51 is provided with a first shaft column 511 for mounting the second transmission member 20; the second plate body 52 is provided with an shaft hole for the driving rod 10 to pass through; during installation, the second transmission member 20 can be rotatably mounted on the first shaft column 511, the right end of the driving rod 10 passes through the shaft hole, and the first transmission member 11 is installed on the right end of the driving rod 10.

[0036] As a preferred embodiment, the first plate 51 is provided with a strip-shaped limit groove 512 extending in the same direction as the driving rod 10 (extending in the left and right direction), and the limit groove has a limit block 513. Preferably, two strip-shaped limit grooves 512 are provided on the first plate 51, and the first shaft column 511 is provided between the two strip-shaped limit grooves 512, thereby further improving the working stability of the focusing driving assembly of this embodiment. In actual application, the driving rod 10 is provided with sealing rings, limit clamps and other parts to further improve assembly accuracy and waterproofness; this is a conventional technology and will not be described in detail here.

[0037] The design focus of the utility model is that it improves the stability of camera installation and use mainly through the specific setting of the focus drive component; specifically, by installing a locking knob on the drive shaft, the drive component can play a evasive role when the camera is installed in the waterproof shell, thereby ensuring the accurate installation of the camera; by installing a compression spring on the drive shaft, it is ensured that the drive component presses the camera lens, thereby ensuring the reliability and accuracy of focusing;

[0038] Secondly, by cleverly arranging the first transmission member and the second transmission member, the internal space occupied by the drive assembly of the waterproof housing is further optimized, which has many advantages such as compact structure and small space occupation;

[0039] In addition, the specific design of the locking knob further improves the convenience of installation and use, and improves the operating feel.

[0040] 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 minor 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 camera focus drive assembly applied to a camera waterproof housing, characterized in that: The invention comprises a driving rod, a first transmission member is installed at one end of the driving rod, a focusing knob is installed at the other end of the driving rod, the first transmission member is connected to the second transmission member in a transmission manner; the first transmission member is provided with a first gear, the second transmission member is provided with a second gear meshing with the first gear, and the second transmission member is also provided with a third gear for driving the camera lens; The driving rod is provided with a locking knob for locking the driving assembly to the waterproof shell and a compression spring for pushing the driving assembly to move toward the first gear side.

2. A camera focus drive assembly for a camera waterproof housing according to claim 1, characterized in that: The inner side of the locking knob is provided with a toggle protrusion, and the inner side surface of the toggle protrusion is provided with a guiding inclined surface adapted to the corresponding waterproof shell.

3. The camera focus drive assembly used in a camera waterproof housing according to claim 2, characterized in that: The convex part of the turning movement is provided with a concave part of the turning movement which is convenient for manual operation.

4. The camera focus drive assembly used in a camera waterproof housing according to claim 3, characterized in that: The first transmission member and the second transmission member are arranged perpendicular to each other, the first gear and the second gear are both bevel gears; and the third gear is a spur gear.

5. The camera focus drive assembly used in a camera waterproof housing according to claim 4, characterized in that: The second gear and the third gear are integrally formed on the second transmission member.

6. The camera focus drive assembly used in a camera waterproof housing according to claim 5, characterized in that: It also includes a mounting block, which includes a first plate body and a second plate body, the first plate body is provided with a first shaft column for mounting the second transmission member; the second plate body is provided with an shaft hole for the driving rod to pass through.

7. The camera focus drive assembly used in a camera waterproof housing according to claim 6, characterized in that: The first plate body is provided with a strip-shaped limiting groove extending in the same direction as the driving rod, and the limiting groove is provided with a limiting block.

8. The camera focus drive assembly used in a camera waterproof housing according to claim 7, characterized in that: Two strip-shaped limiting grooves are arranged on the first plate body, and the first shaft column is arranged between the two strip-shaped limiting grooves.

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