Lens focusing mechanism

Abstract

The utility model relates to the technical field of lens driving, and provides a lens focusing mechanism which is characterized in that an upper fixing seat is fixedly installed on an installation substrate, a driving assembly is fixedly installed on the upper fixing seat, the output end of the driving assembly is connected with a driven large gear, the lower side of the driven large gear is fixedly connected with a rotating disc, and two groups of movable clamping hand assemblies are arranged. The two movable clamping hand assemblies which are symmetrically arranged are movably arranged on the rotating disc, a focusing hole is formed in the center of the rotating disc, the clamping centers of the two movable clamping hand assemblies are arranged on the axis of the focusing hole, and the two movable clamping hand assemblies are used in cooperation with the inner wall of the ratchet wheel stirring disc. The ratchet wheel stirring disc is connected with the rotating disc through the reset spring and is in sliding connection with the rotating disc, the ratchet wheel driving assembly is fixedly installed on the lower side of the installation base plate, and the output end of the ratchet wheel driving assembly is used in cooperation with the outer wall of the ratchet wheel stirring disc. The lens after focusing can be dismounted without manual operation of a worker.

Description

Technical Field

[0001] This utility model relates to the field of lens driving technology, and in particular to a lens focusing mechanism. Background Technology

[0002] Focusing, also known as adjusting the focus, refers to the process of changing the image distance of imaging devices such as cameras and webcams—that is, changing the distance between the optical center of the lens and the film plane—in order to obtain a clear image. Therefore, focusing is usually required during the manufacturing process of imaging devices such as webcams to ensure the quality of the images captured by the product.

[0003] As disclosed in application number CN201810689613.9, a lens focusing device is used to achieve precise focusing. The lens focusing device includes a focusing ring and at least two bolts mounted on the focusing ring. The end of each bolt is screwed into the focusing ring, and the ends of the at least two bolts form a clamping space on the inside of the focusing ring that can clamp the lens of an image acquisition device.

[0004] However, the existing lens clamping components have certain shortcomings. Staff must manually operate to release the lens clamp, which is not only cumbersome but also time-consuming and labor-intensive. This is especially inconvenient when frequently changing lenses or quickly adjusting equipment, greatly affecting work efficiency and user experience. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a lens focusing mechanism.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lens focusing mechanism includes: a mounting base, an upper fixed seat, a drive assembly, a driven gear, a rotating disk, a movable gripper assembly, a return spring, a ratchet actuation disk, a ratchet drive assembly, a bearing slide rail, and a bearing cover. The upper fixed seat is fixedly mounted on the mounting base, and the drive assembly is fixedly mounted on the upper fixed seat. The output end of the drive assembly is connected to the driven gear, and the lower side of the driven gear is fixedly connected to the rotating disk. Two sets of movable gripper assemblies are provided, symmetrically arranged, and movably mounted on the rotating disk. A focusing hole is provided at the center of the rotating disk, and the clamping centers of the two sets of movable gripper assemblies are located on the axis of the focusing hole. The two sets of movable gripper assemblies cooperate with the inner wall of the ratchet actuation disk. The ratchet actuation disk is connected to the rotating disk through a return spring and is slidably connected to the rotating disk. The ratchet drive assembly is fixedly mounted on the lower side of the mounting base, and the output end of the ratchet drive assembly cooperates with the outer wall of the ratchet actuation disk. The outer side of the rotating disk is slidably connected to the bearing slide rail, which is located between the bearing cover and the driven gear.

[0008] Preferably, the drive assembly includes: a drive motor, a drive gear, and a gear mounting sleeve. The drive motor is fixedly mounted on the upper fixed base, and the output end of the drive motor is fixedly connected to the gear mounting sleeve. The drive gear is mounted on the gear mounting sleeve and meshes with the driven large gear.

[0009] Preferably, the movable gripper assembly includes: a clamping plate, a first vertical shaft, a second vertical shaft, and a gripper return spring. The first and second vertical shafts are fixedly connected to the rotating disk. The rear end of the clamping plate is rotatably connected to the first vertical shaft. An elongated hole is provided in the middle of the clamping plate. The clamping plate is movably connected to the second vertical shaft through the elongated hole. The rear side of the front end of the clamping plate is connected to the rotating disk through the gripper return spring. The front side of the front end of the clamping plate is used to hold a lens. The rear end of the clamping plate is used in conjunction with a ratchet actuation disk.

[0010] Preferably, the ratchet actuation disc includes: a disc body, ratchet teeth, and actuation teeth. The ratchet teeth are disposed on the outer side of the disc body, and the actuation teeth are disposed on the inner side of the disc body. The disc body is connected to the ratchet drive assembly through the ratchet teeth, and the disc body is used in conjunction with the clamping plate through the actuation teeth.

[0011] Preferably, the ratchet drive assembly includes: a drive cylinder, a cylinder mounting base, a push plate, a drive tooth, and a drive tooth return spring. The drive cylinder is fixedly connected to the mounting base via the cylinder mounting base. The output end of the drive cylinder is connected to one end of the push plate. One end of the drive tooth is rotatably disposed at the other end of the push plate. The other end of the drive tooth is connected to the push plate via the drive tooth return spring. The drive tooth and the ratchet are used in conjunction.

[0012] The advantages of this utility model are as follows: This device can clamp and focus the lens by setting a drive component, a driven large gear, a rotating disk and a movable gripper component. The movable gripper component can be released by setting a ratchet actuation disk and a ratchet drive component, thereby avoiding manual operation by the operator. The relative position of the ratchet actuation disk and the movable gripper component can be kept stable by setting a reset spring. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0014] Figure 1 This is a structural schematic diagram of this utility model from one angle;

[0015] Figure 2 This is a structural schematic diagram of the present invention from angle two;

[0016] Figure 3This is a structural schematic diagram of the rotating disk, movable gripper assembly, and return spring of this utility model;

[0017] Figure 4 This is a schematic diagram of the driven large gear of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the drive component of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the movable gripper assembly of this utility model;

[0020] Figure 7 This is a schematic diagram of the ratchet actuation disc of this utility model;

[0021] Figure 8 This is a schematic diagram of the ratchet drive assembly of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Mounting base; 2. Upper fixed seat; 3. Drive assembly; 4. Driven large gear; 5. Rotating disk; 6. Movable gripper assembly; 7. Return spring; 8. Ratchet actuating disk; 9. Ratchet drive assembly; 10. Bearing slide rail; 11. Bearing cover; 31. Drive motor; 32. Drive gear; 33. Gear mounting sleeve; 61. Clamping plate; 62. First vertical shaft; 63. Second vertical shaft; 64. Gripper return spring; 81. Wheel body; 82. Ratchet; 83. Actuating tooth; 91. Drive cylinder; 92. Cylinder mounting seat; 93. Push plate; 94. Drive tooth; 95. Drive tooth return spring. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1, combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 Explanation:

[0028] A lens focusing mechanism includes: a mounting base 1, an upper fixed seat 2, a drive assembly 3, a driven large gear 4, a rotating disk 5, a movable gripper assembly 6, a return spring 7, a ratchet actuation disk 8, a ratchet drive assembly 9, a bearing slide rail 10, and a bearing cover 11.

[0029] The upper fixing base 2 is fixedly mounted on the mounting base 1, and the drive assembly 3 is fixedly mounted on the upper fixing base 2. This ensures the installation stability of the drive assembly 3.

[0030] The output end of the drive component 3 is connected to the driven gear 4. The lower side of the driven gear 4 is fixedly connected to the rotating disk 5. Two sets of movable gripper components 6 are provided. The two sets of movable gripper components 6 are symmetrically arranged and movably mounted on the rotating disk 5. The drive component 3 can drive the driven gear 4 to rotate, thereby driving the movable gripper components 6 to rotate through the rotating disk 5, so as to achieve the purpose of focusing the lens.

[0031] A focusing hole is provided at the center of the rotating disk 5, and the clamping centers of the two sets of movable gripper assemblies 6 are set on the axis of the focusing hole. This arrangement can ensure the clamping accuracy of the movable gripper assemblies 6.

[0032] Two sets of movable gripper assemblies 6 are used in conjunction with the inner wall of the ratchet actuation disk 8. The ratchet actuation disk 8 is connected to the rotating disk 5 through the return spring 7 and is slidably connected to the rotating disk 5. The ratchet actuation disk 8 can make the movable gripper assembly 6 release the grip on the lens.

[0033] The ratchet drive assembly 9 is fixedly mounted on the lower side of the mounting base plate 1. The output end of the ratchet drive assembly 9 is used in conjunction with the outer wall of the ratchet actuation disk 8. The outer side of the rotating disk 5 is slidably connected to the bearing slide rail 10, which is located between the bearing cover 11 and the driven large gear 4. The ratchet drive assembly 9 is used to drive the ratchet actuation disk 8 to rotate.

[0034] Example 2, based on Example 1, combined with... Figure 5 Explanation:

[0035] The drive assembly 3 includes a drive motor 31, a drive gear 32, and a gear mounting sleeve 33. The drive motor 31 is fixedly mounted on the upper fixed base 2. The output end of the drive motor 31 is fixedly connected to the gear mounting sleeve 33. The drive gear 32 is fitted onto the gear mounting sleeve 33 and meshes with the driven large gear 4.

[0036] The drive motor 31 can drive the drive gear 32 to rotate. The gear mounting sleeve 33 is used to fix the drive gear 32, and the drive gear 32 is used to drive the rotating disk 5 to rotate.

[0037] Example 3, based on Example 2, combined with Figure 6 Explanation:

[0038] The movable gripper assembly 6 includes: a clamping plate 61, a first vertical shaft 62, a second vertical shaft 63, and a gripper return spring 64.

[0039] The first vertical shaft 62 and the second vertical shaft 63 are fixedly connected to the rotating disk 5. The rear end of the clamping plate 61 is rotatably connected to the first vertical shaft 62. An elongated hole is provided in the middle of the clamping plate 61. The clamping plate 61 is movably connected to the second vertical shaft 63 through the elongated hole. The rear side of the front end of the clamping plate 61 is connected to the rotating disk 5 through a clamping return spring 64. The front side of the front end of the clamping plate 61 is used to clamp the lens. The rear end of the clamping plate 61 is used in conjunction with the ratchet actuation disk 8.

[0040] By pushing the rear end of the clamping plate 61, the rear end of the clamping plate 61 can be rotated around the first vertical axis 62. Then, the middle part of the clamping plate 61 is limited by the second vertical axis 63, and the front end of the clamping plate 61 releases the lens, thereby removing the lens. The clamping return spring 64 is used to reset the clamping plate 61 after the lens is released.

[0041] Example 4, based on Example 2, combined with Figure 7 Explanation:

[0042] The ratchet actuation disc 8 includes: a disc body 81, ratchet teeth 82, and actuation teeth 83.

[0043] The ratchet 82 is located on the outside of the wheel body 81, and the actuating tooth 83 is located on the inside of the wheel body 81. The wheel body 81 is connected to the ratchet drive assembly 9 through the ratchet 82, and the wheel body 81 is used in conjunction with the clamping plate 61 through the actuating tooth 83.

[0044] The actuating tooth 83 can actuate the rear end of the clamping plate 61, thereby causing the clamping plate 61 to rotate around the first vertical axis 62. The ratchet tooth 82 can drive the wheel body 81 to rotate under the action of the ratchet drive assembly 9, thereby causing the actuating tooth 83 to move and drive the clamping plate 61 to move.

[0045] Example 5, based on Example 2, combined with Figure 8 Explanation:

[0046] The ratchet drive assembly 9 includes: a drive cylinder 91, a cylinder mounting base 92, a push plate 93, a drive tooth 94, and a drive tooth return spring 95.

[0047] The drive cylinder 91 is fixedly connected to the mounting base 1 via the cylinder mounting seat 92. The output end of the drive cylinder 91 is connected to one end of the push plate 93. One end of the drive tooth 94 is rotatably mounted on the other end of the push plate 93, and the other end of the drive tooth 94 is connected to the push plate 93 via the drive tooth return spring 95. The drive tooth 94 works in conjunction with the ratchet 82. In use, the drive cylinder 91 pushes the push plate 93 to move, thereby causing the drive tooth 94 to move forward. The drive tooth 94 then pushes the ratchet 82 to drive the wheel body 81 to move. When the wheel body 81 rotates, the ratchet 82 presses against the drive tooth 94 and moves towards the push plate 93. Subsequently, the drive tooth 94 is reset under the action of the drive tooth return spring 95, pressing against the ratchet 82 to restrict the rotation of the wheel body 81.

[0048] The working principle of this utility model is as follows: When using this device, the camera lens is placed between two sets of movable gripper assemblies 6, so that the movable gripper assemblies 6 hold the camera lens. Then, the drive motor 31 is started, which drives the driven large gear 4 to rotate through the drive gear 32, thereby driving the rotating disk 5 to rotate. This causes the movable gripper assemblies 6 to rotate and focus the camera lens. After the adjustment is completed, the drive cylinder 91 is started, which drives the push plate 93 to push the ratchet actuating disk 8 forward. This causes the actuating teeth 83 of the ratchet actuating disk 8 to drive the rear end of the clamping plate 61 to move. Under the action of the first vertical shaft 62 and the second vertical shaft 63, the clamping plate 61 opens outward, and then the lens can be released. This utility model has a reasonable structure and is easy to use. It can remove the focused lens without the need for manual operation.

[0049] For those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model; therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A lens focusing mechanism, characterized in that, include: The mounting base (1), upper fixed seat (2), drive assembly (3), driven gear (4), rotating disk (5), movable gripper assembly (6), return spring (7), ratchet actuation disk (8), ratchet drive assembly (9), bearing slide rail (10), and bearing cover (11) are provided. The upper fixed seat (2) is fixedly mounted on the mounting base (1), and the drive assembly (3) is fixedly mounted on the upper fixed seat (2). The output end of the drive assembly (3) is connected to the driven gear (4), and the lower side of the driven gear (4) is fixedly connected to the rotating disk (5). Two sets of movable gripper assemblies (6) are provided, and the two sets of movable gripper assemblies (6) are symmetrically arranged and movably mounted on the rotating disk (5). On the disk (5), a focusing hole is provided in the center of the rotating disk (5). The clamping center of the two sets of movable clamping assemblies (6) is set on the axis of the focusing hole. The two sets of movable clamping assemblies (6) are used in conjunction with the inner wall of the ratchet actuating disk (8). The ratchet actuating disk (8) is connected to the rotating disk (5) through the return spring (7) and is slidably connected to the rotating disk (5). The ratchet drive assembly (9) is fixedly installed on the lower side of the mounting base plate (1). The output end of the ratchet drive assembly (9) is used in conjunction with the outer wall of the ratchet actuating disk (8). The outer side of the rotating disk (5) is slidably connected to the bearing slide rail (10). The bearing slide rail (10) is set between the bearing cover (11) and the driven large gear (4).

2. The lens focusing mechanism according to claim 1, wherein The drive assembly (3) includes a drive motor (31), a drive gear (32), and a gear mounting sleeve (33). The drive motor (31) is fixedly mounted on the upper fixed seat (2). The output end of the drive motor (31) is fixedly connected to the gear mounting sleeve (33). The drive gear (32) is fitted on the gear mounting sleeve (33) and meshes with the driven large gear (4).

3. The lens focusing mechanism according to claim 1, wherein The movable gripper assembly (6) includes: a clamping plate (61), a first vertical shaft (62), a second vertical shaft (63), and a gripper return spring (64). The first vertical shaft (62) and the second vertical shaft (63) are fixedly connected to the rotating disk (5). The rear end of the clamping plate (61) is rotatably connected to the first vertical shaft (62). An elongated hole is provided in the middle of the clamping plate (61). The clamping plate (61) is movably connected to the second vertical shaft (63) through the elongated hole. The rear side of the front end of the clamping plate (61) is connected to the rotating disk (5) through the gripper return spring (64). The front side of the front end of the clamping plate (61) is used to hold the lens. The rear end of the clamping plate (61) is used in conjunction with the ratchet actuation disk (8).

4. The lens focusing mechanism according to claim 3, wherein The ratchet actuation disc (8) includes: a disc body (81), ratchet teeth (82) and actuation teeth (83). The ratchet teeth (82) are located on the outside of the disc body (81), and the actuation teeth (83) are located on the inside of the disc body (81). The disc body (81) is connected to the ratchet drive assembly (9) through the ratchet teeth (82), and the disc body (81) is used in conjunction with the clamping plate (61) through the actuation teeth (83).

5. The lens focusing mechanism according to claim 4, wherein The ratchet drive assembly (9) includes: a drive cylinder (91), a cylinder mounting base (92), a push plate (93), a drive tooth (94), and a drive tooth return spring (95). The drive cylinder (91) is fixedly connected to the mounting base plate (1) through the cylinder mounting base (92). The output end of the drive cylinder (91) is connected to one end of the push plate (93). One end of the drive tooth (94) is rotatably disposed at the other end of the push plate (93). The other end of the drive tooth (94) is connected to the push plate (93) through the drive tooth return spring (95). The drive tooth (94) is used in conjunction with the ratchet tooth (82).

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