Zoom regulator for lens of single lens reflex

Abstract

The utility model relates to the technical field of camera zooming, in particular to a lens zooming regulator for a single lens reflex, which comprises a bottom plate detachably connected with a camera, a mounting plate is arranged below the bottom plate, the bottom plate is rotatably connected with the mounting plate, one end of the top surface of the bottom plate is provided with a regulating mechanism, and the other end of the top surface of the bottom plate is provided with a lens. A driving part for zooming the camera is arranged on the top surface of the adjusting mechanism, the adjusting mechanism comprises a fixed plate detachably connected with the bottom plate, and a movable plate is arranged above the fixed plate. According to the utility model, the height of the movable plate can be adjusted through the rotation of the adjusting screw rod, so that the distance between the driving piece and the camera zoom ring can be adjusted, synchronous belts with different lengths can be used, and a shooting enthusiast does not need to carry a special synchronous belt according to a carried camera when going out; therefore, the load of the shooting enthusiasts can be reduced, and the synchronous belts with different lengths can be universally used.

Description

Technical Field

[0001] This utility model relates to the field of camera zoom technology, specifically a zoom adjuster for a single-lens reflex camera lens. Background Technology

[0002] A DSLR camera is a digital camera that uses the principle of single-lens reflex. It combines optical imaging and digital imaging technology and is widely used in professional photography, advanced hobby photography, and some specific commercial and industrial fields. Currently, DSLR cameras can zoom in to shoot distant scenes or objects, especially when shooting small animals in trees. If people hold the camera close to the subject, the animals will be frightened and run away. Currently, the camera is usually fixed on a height-adjustable rig (such as a tripod), and the focal length is controlled by the zoom adjustment.

[0003] Currently, existing zoom adjusters typically involve first fixing the camera to the adjuster, then attaching a belt between the camera lens and the drive mechanism. The camera's focal length is remotely adjusted by the drive mechanism. However, since the position of the drive mechanism is usually fixed, the length of the belt used is also fixed. But for photography enthusiasts, there may be multiple different camera models. When different models are fixed to the adjuster, the length of the synchronization belt used may be different. Therefore, photography enthusiasts need to carry a synchronization belt specific to each camera model when they go out. However, the synchronization belt is a small component that is easy to lose, especially when the model of synchronization belt is discontinued, which will affect the use of the camera. Utility Model Content

[0004] The purpose of this invention is to provide a zoom adjuster for a single-lens reflex camera to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A zoom adjuster for a single-lens reflex camera includes a base plate detachably connected to the camera, a mounting plate disposed below the base plate, the base plate and the mounting plate being rotatably connected, an adjustment mechanism disposed at one end of the top surface of the base plate, and a drive component for zooming the camera disposed on the top surface of the adjustment mechanism.

[0007] The adjustment mechanism includes a fixed plate detachably connected to the base plate, a movable plate above the fixed plate, and an adjustment screw that is rotatably connected to the bottom surface of the movable plate and screwed through the fixed plate.

[0008] Furthermore, a through hole is provided on the top surface of the base plate corresponding to the fixing plate, and the length and width of the through hole are smaller than the length and width of the fixing plate, respectively.

[0009] Furthermore, both ends of the top surface of the fixed plate are fixedly connected with limiting rods that slide through the movable plate.

[0010] Furthermore, the driving component includes a second servo motor fixedly connected to the top surface of the moving plate, and a synchronous wheel is fixedly connected to the output end of the second servo motor.

[0011] Furthermore, both ends of the top surface of the movable plate are detachably connected to tensioning pulleys that abut against the timing belt.

[0012] Furthermore, threaded holes are provided at both ends of one side of the top surface of the movable plate, and connecting blocks are provided at both ends of the top surface of the movable plate. A connecting frame that is rotatably connected to the tension wheel at the corresponding position is fixed through the side of the connecting block, and an installation block is fixedly connected to the bottom end of the connecting block.

[0013] Furthermore, the top surface of the mounting plate is fixedly connected to a rotating seat, the bottom surface of the base plate is fixedly connected to a rotating block that is rotatably connected to the rotating seat via a rotating shaft, one end of the rotating shaft passes through the rotating seat, and the top surface of the mounting plate is fixedly connected to a servo motor, the output end of the servo motor being fixedly connected to the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The height of the moving plate can be adjusted by rotating the screw, thereby adjusting the distance between the drive unit and the camera zoom ring. This allows for the use of synchronization belts of different lengths, eliminating the need for photographers to carry dedicated synchronization belts for different cameras when going out. This not only reduces the burden on photographers but also makes synchronization belts of different lengths universal. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the adjustment mechanism structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the tensioning wheel in this utility model.

[0020] In the diagram: 1. Base plate; 11. Mounting plate; 12. Rotating seat; 13. Rotating block; 14. Servo motor one; 2. Adjustment mechanism; 21. Fixed plate; 22. Moving plate; 23. Adjusting screw; 24. Servo motor two; 25. Limiting rod; 26. Tensioning wheel; 27. Connecting block; 28. Connecting frame; 29. ​​Mounting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 - Figure 4 In this embodiment of the present invention, a zoom adjuster for a single-lens reflex camera includes a base plate 1 detachably connected to the camera. A mounting plate 11 is disposed below the base plate 1, and the base plate 1 and the mounting plate 11 are rotatably connected. An adjustment mechanism 2 is disposed at one end of the top surface of the base plate 1. A driving component for zooming the camera is disposed on the top surface of the adjustment mechanism 2. The adjustment mechanism 2 includes a fixed plate 21 detachably connected to the base plate 1. A movable plate 22 is disposed above the fixed plate 21. An adjustment screw 23, which is screwed through the fixed plate 21, is rotatably connected to the bottom surface of the movable plate 22.

[0023] Specifically, when photographing small animals in trees, the mounting plate 11 is first installed on the adjustable frame. The camera is then fixed to the base plate 1 with bolts, and a timing belt is placed between the drive unit and the camera's zoom ring. By adjusting the rotation of the screw 23, the drive unit can be lowered, tautning the timing belt. The photographer then raises the camera as close as possible to the small animals in the tree using the frame. When zooming is needed, the camera's zoom ring can be rotated by the drive unit, thus zooming the camera. The height of the moving plate 22 can be adjusted by adjusting the rotation of the screw 23, thereby adjusting the distance between the drive unit and the camera's zoom ring. This allows for the use of timing belts of different lengths, eliminating the need for photographers to carry dedicated timing belts for their cameras. This not only reduces the photographer's load but also ensures the compatibility of timing belts of different lengths.

[0024] Example 1

[0025] like Figure 3 As shown, in this embodiment, a through hole is provided on the top surface of the base plate 1 corresponding to the fixed plate 21. The length and width of the through hole are smaller than the length and width of the fixed plate 21, respectively. Limiting rods 25 that slide through the moving plate 22 are fixedly connected to both ends of the top surface of the fixed plate 21.

[0026] In this embodiment, a through hole is provided so that the height of the movable plate 22 can be adjusted, and a limiting rod 25 is provided to prevent the movable plate 22 from rotating when adjusting its height.

[0027] Example 2

[0028] like Figure 3 and Figure 4 As shown, in this embodiment, the driving component includes a second servo motor 24 fixedly connected to the top surface of the moving plate 22. The output end of the second servo motor 24 is fixedly connected to a synchronous pulley. Tensioning pulleys 26 that abut against the synchronous belt are detachably connected to both ends of the top surface of the moving plate 22. Threaded holes are provided through both ends of one side of the top surface of the moving plate 22. Connecting blocks 27 are provided at both ends of the top surface of the moving plate 22. Connecting brackets 28 that are rotatably connected to the tensioning pulleys 26 at the corresponding positions are fixedly connected through the side of the connecting block 27. A mounting block 29 is fixedly connected to the bottom end of the connecting block 27.

[0029] In this embodiment, by opening a threaded hole on the top surface of the moving plate 22, the tensioning wheel 26 is fixed to the top surface of the moving plate 22 by bolts. The two tensioning wheels 26 can increase the wrap angle between the synchronous belt and the synchronous wheel, and minimize the slippage between the synchronous wheel and the synchronous belt. The detachable connection between the tensioning wheel 26 and the moving plate 22 allows the synchronous belt to be fitted between the synchronous wheel and the camera zoom ring. The camera zoom ring can be rotated by the drive of the servo motor 24.

[0030] Example 3

[0031] like Figure 2 As shown, in this embodiment, a rotating seat 12 is fixedly connected to the top surface of the mounting plate 11, and a rotating block 13 is fixedly connected to the bottom surface of the base plate 1 via a rotating shaft and rotatably connected to the rotating seat 12. One end of the rotating shaft passes through the rotating seat 12, and a servo motor 14 is fixedly connected to the top surface of the mounting plate 11. The output end of the servo motor 14 is fixedly connected to the rotating shaft.

[0032] In this embodiment, the base plate 1 can be driven by the servo motor 14 to rotate the camera, so that photography enthusiasts can shoot horizontally or vertically according to the actual shooting situation.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A single-lens reflex camera lens zoom adjuster, characterized by, Includes a base plate (1) detachably connected to the camera, a mounting plate (11) is provided below the base plate (1), the base plate (1) and the mounting plate (11) are rotatably connected, an adjustment mechanism (2) is provided at one end of the top surface of the base plate (1), and a drive component for zooming the camera is provided on the top surface of the adjustment mechanism (2). The adjustment mechanism (2) includes a fixed plate (21) detachably connected to the base plate (1), a movable plate (22) is provided above the fixed plate (21), and an adjustment screw (23) that is rotatably connected to the bottom surface of the movable plate (22) and is screwed through the fixed plate (21).

2. The single-lens reflex camera lens zoom adjuster of claim 1, wherein, A through hole is provided on the top surface of the base plate (1) corresponding to the fixing plate (21). The length and width of the through hole are smaller than the length and width of the fixing plate (21), respectively.

3. The SLR camera lens zoom adjuster of claim 2, wherein, Both ends of the top surface of the fixed plate (21) are fixedly connected with limiting rods (25) that slide through the movable plate (22).

4. The single-lens reflex camera lens zoom adjuster of claim 3, wherein, The driving component includes a second servo motor (24) fixedly connected to the top surface of the moving plate (22), and a synchronous pulley is fixedly connected to the output end of the second servo motor (24).

5. The single-lens reflex camera lens zoom adjuster of claim 4, wherein, Both ends of the top surface of the movable plate (22) are detachably connected to tensioning pulleys (26) that abut against the timing belt.

6. The single-lens reflex camera lens zoom adjuster of claim 5, wherein, Both ends of the top surface of the movable plate (22) are threaded holes. Both ends of the top surface of the movable plate (22) are provided with connecting blocks (27). The side of the connecting block (27) is fixed with a connecting frame (28) that is rotatably connected to the tension wheel (26) at the corresponding position. The bottom end of the connecting block (27) is fixedly connected with an installation block (29).

7. The single-lens reflex camera lens zoom adjuster of claim 6, wherein, The top surface of the mounting plate (11) is fixedly connected to a rotating seat (12), and the bottom surface of the base plate (1) is fixedly connected to a rotating block (13) that is rotatably connected to the rotating seat (12) via a rotating shaft. One end of the rotating shaft passes through the rotating seat (12), and the top surface of the mounting plate (11) is fixedly connected to a servo motor (14). The output end of the servo motor (14) is fixedly connected to the rotating shaft.

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