Adjustable optical instrument shading film mechanism

Abstract

The utility model discloses an adjustable shading film mechanism for an optical instrument. The adjustable shading film mechanism comprises a shading cylinder, a fixing plate, a mounting cylinder, a shading block and a shading mechanism, the end, close to the shading cylinder, of the mounting cylinder is fixedly connected with the end, away from the shading cylinder, of the fixing plate. The shading mechanism is arranged between the shading cylinder and the mounting cylinder and comprises an adjusting part and a shading part, the shading part is hinged to the fixing plate and the mounting cylinder, the adjusting part is fixedly connected with the shading part, and the adjusting part is used for pushing the shading part to move; the adjusting part is arranged on the outer wall of the shading frame, the moving rod is pushed, the moving rod drives the moving cylinder to move, the moving cylinder is separated from the shading frame, the adjusting rod is pushed, the shading frame rotates through the adjusting rod, the shading frame rotates to drive the shading film body to rotate, and the shading film body is separated from the shading cylinder. The shading film body can be adjusted according to shooting optical requirements, the shading cylinder does not need to be disassembled repeatedly, and the operation process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of optical instrument light-shielding film technology, and in particular to an adjustable optical instrument light-shielding film mechanism. Background Technology

[0002] Optical instruments are devices that use optical principles for observation, measurement, and analysis. They are widely used in scientific research, industry, medicine, education, and other fields. Common optical instruments include microscopes, telescopes, and cameras. Cameras capture light and record images through a lens system. During photography, glare and reflection are common problems that affect image quality. To improve image quality, existing technologies usually add a light-shielding film in front of the camera lens to effectively prevent glare and reflection. The application of the light-shielding film can significantly improve the contrast and sharpness of the image, making the shooting effect more ideal.

[0003] Existing optical instrument light-shielding film mechanisms require the light-shielding tube to be installed on the front of the camera during use. The light-shielding film inside the light-shielding tube prevents glare and reflection. Because the light-shielding film is fixedly connected to the light-shielding tube, the light-shielding tube must be disassembled from the camera when the external light decreases. The light-shielding film cannot be adjusted, making the operation cumbersome, time-consuming, and labor-intensive. In view of this, this solution proposes an adjustable optical instrument light-shielding film mechanism to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable optical instrument light-shielding film mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable optical instrument light-shielding film mechanism, comprising:

[0006] Sunshade tube;

[0007] A fixing plate, one end of which is fixedly connected to one end of a light-shielding tube;

[0008] The mounting cylinder is located at the front end of the light-shielding cylinder, and the end of the mounting cylinder near the light-shielding cylinder is fixedly connected to the end of the fixing plate away from the light-shielding cylinder.

[0009] A light-shielding mechanism is disposed between a light-shielding cylinder and a mounting cylinder. The light-shielding mechanism includes an adjustment part and a light-shielding part. The light-shielding part is hinged to a fixed plate and a mounting cylinder. The adjustment part is fixedly connected to the light-shielding part. The adjustment part is used to push the light-shielding part to move.

[0010] Preferably, the light-shielding portion includes:

[0011] A light-shielding frame, one end of which is slidably connected to a light-shielding cylinder near a fixed plate, and the other end of which is slidably connected to an installation cylinder near a light-shielding cylinder. The outer wall of the light-shielding frame is hinged to the light-shielding cylinder and the installation cylinder, and the outer wall of the light-shielding frame is fixedly connected to an adjustment part.

[0012] The light-shielding film body is disposed inside the light-shielding frame, and the outer wall of the light-shielding film body is interlocked with the inner wall of the light-shielding frame.

[0013] Preferably, the adjusting part includes an adjusting rod, one end of which is fixedly connected to the outer wall of the light-shielding frame, and the other end of which is fixedly connected to one side of the fixing plate.

[0014] Preferably, a movable cylinder is slidably inserted and connected inside the light-shielding cylinder, and one end of the movable cylinder extends out of the light-shielding cylinder and is inserted and connected to the light-shielding frame.

[0015] Preferably, the light-shielding cylinder is provided with a plurality of springs, one end of which is fixedly connected to the inner wall of the light-shielding cylinder, and the other end of which is fixedly connected to the end of the movable cylinder away from the light-shielding frame.

[0016] Preferably, the outer wall of the light-shielding cylinder is provided with a movable groove, and a movable rod is slidably inserted into the movable groove. One end of the movable rod is fixedly connected to the outer wall of the movable cylinder, and the other end of the movable rod extends out of the movable groove.

[0017] Preferably, a fixing rod is fixedly installed at one end of the movable rod that protrudes from the movable groove, and the end of the fixing rod away from the movable rod is inserted and connected to the adjusting rod.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] This invention features an adjustment mechanism on the outer wall of a light-shielding frame. Pushing a moving rod causes a moving cylinder to move, separating the moving cylinder from the light-shielding frame. Pushing an adjustment rod causes the light-shielding frame to rotate, which in turn causes the light-shielding film to rotate, separating the light-shielding film from the light-shielding cylinder. This allows for adjustment of the light-shielding film according to the optical requirements of shooting, eliminating the need for repeated disassembly of the light-shielding cylinder and simplifying the operation process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a cross-sectional view of the entire utility model.

[0022] Figure 3 This is a cross-sectional view of the light-shielding tube of this utility model.

[0023] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0024] Figure 5 This is a cross-sectional view of the light-shielding mechanism of this utility model.

[0025] In the diagram: 1. Light-shielding tube; 2. Mounting tube; 3. Light-shielding block; 4. Fixing plate; 5. Light-shielding frame; 6. Light-shielding film body; 7. Adjusting rod; 8. Moving rod; 9. Fixing rod; 10. Moving tube; 11. Spring. Detailed Implementation

[0026] 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.

[0027] refer to Figure 1-5 As shown:

[0028] Example 1: This utility model provides an adjustable optical instrument light-shielding film body 6 mechanism, comprising:

[0029] Shielding tube 1;

[0030] Fixed plate 4, one end of fixed plate 4 is fixedly connected to one end of light shielding tube 1;

[0031] Mounting cylinder 2 is located at the front end of light-shielding cylinder 1. The end of mounting cylinder 2 near light-shielding cylinder 1 is fixedly connected to the end of fixing plate 4 away from light-shielding cylinder 1.

[0032] The light-blocking block 3 is fixedly installed at the end of the mounting cylinder 2 away from the light-blocking cylinder 1;

[0033] It should be noted that the mounting cylinder 2 is located at the front end of the light-shielding cylinder 1. The end of the mounting cylinder 2 near the light-shielding cylinder 1 is fixedly connected to one end of the fixing plate 4, and the other end of the fixing plate 4 is fixedly connected to the front end of the light-shielding cylinder 1. The light-shielding mechanism is located between the light-shielding cylinder 1 and the mounting cylinder 2. The end of the light-shielding cylinder 1 away from the mounting cylinder 2 is provided with a threaded structure. The threaded structure is used to connect with the front end of the camera. The end of the light-shielding cylinder 1 away from the mounting cylinder 2 is installed with the front end of the camera. The light-shielding mechanism is adjusted according to the shooting light requirements, thereby improving the contrast and clarity of the image.

[0034] In embodiment two, the present invention provides a light-shielding mechanism, which is applied to an adjustable optical instrument light-shielding film body 6 mechanism in embodiment one. The light-shielding mechanism is disposed between the light-shielding cylinder 1 and the mounting cylinder 2. The light-shielding mechanism includes an adjustment part and a light-shielding part. The light-shielding part is hinged to the fixing plate 4 and the mounting cylinder 2. The adjustment part is fixedly connected to the light-shielding part. The adjustment part is used to push the light-shielding part to move.

[0035] Specifically, the light-shielding part includes:

[0036] The light-shielding frame 5 has one end slidably connected to the end of the light-shielding cylinder 1 near the fixed plate 4, and the other end of the light-shielding frame 5 slidably connected to the end of the mounting cylinder 2 near the light-shielding cylinder 1. The outer wall of the light-shielding frame 5 is hinged to the light-shielding cylinder 1 and the mounting cylinder 2, and the outer wall of the light-shielding frame 5 is fixedly connected to the adjustment part.

[0037] The light-shielding film body 6 is disposed inside the light-shielding frame 5, and the outer wall of the light-shielding film body 6 is interlocked with the inner wall of the light-shielding frame 5.

[0038] Furthermore, the adjustment part includes an adjustment rod 7, one end of which is fixedly connected to the outer wall of the light shield 5, and the other end of which is fixedly connected to one side of the fixing plate 4.

[0039] It should be noted that the light-shielding frame 5 is positioned between the light-shielding cylinder 1 and the mounting cylinder 2. One end of the outer wall of the light-shielding frame 5 is hinged to both the mounting cylinder 2 and the light-shielding cylinder 1, while the other end is fixedly connected to the adjusting rod 7. The end of the adjusting rod 7 furthest from the light-shielding frame 5 is fixedly connected to the side of the fixing plate 4. The light-shielding film body 6 is positioned inside the light-shielding frame 5, and it is interlocked with the inner wall of the light-shielding frame 5. Pushing the adjusting rod 7 moves it to the side of the fixing plate 4, causing the light-shielding frame 5 to rotate. This rotation of the light-shielding frame 5, in turn, causes the light-shielding film body 6 to rotate, moving the light-shielding frame 5 between the mounting cylinder 2 and the light-shielding cylinder 1. The light-shielding film body 6 prevents glare and reflection. When the light is dim and the light-shielding film body 6 is not needed, move the moving tube 10 to separate it from the light-shielding frame 5. Push the adjusting rod 7 to rotate the light-shielding frame 5, which in turn rotates the light-shielding film body 6, separating it from the mounting tube 2 and the light-shielding tube 1. Release the moving tube 10, and the spring 11 will push the moving tube 10 to move, connecting it to the mounting tube 2. This seals the mounting tube 2 and the light-shielding tube 1, preventing external light from entering and affecting subsequent shooting. The light-shielding film body 6 can be adjusted according to usage requirements without frequently disassembling the light-shielding tube 1, simplifying the operation process and improving shooting efficiency.

[0040] Specifically, a movable cylinder 10 is slidably inserted and connected inside the light-shielding cylinder 1, and one end of the movable cylinder 10 extends out of the light-shielding cylinder 1 and is inserted and connected to the light-shielding frame 5.

[0041] Furthermore, a plurality of springs 11 are provided inside the light-shielding cylinder 1. One end of the plurality of springs 11 is fixedly connected to the inner wall of the light-shielding cylinder 1, and the other end of the plurality of springs 11 is fixedly connected to the end of the movable cylinder 10 away from the light-shielding frame 5.

[0042] It should be noted that the movable cylinder 10 is installed inside the light-shielding cylinder 1. One end of the movable cylinder 10 is slidably connected to the light-shielding cylinder 1, and the other end is slidably connected to the light-shielding frame 5. The spring 11 is installed inside the light-shielding cylinder 1. One end of the spring 11 is fixedly connected to the end of the movable cylinder 10 near the light-shielding cylinder 1, and the other end of the spring 11 is fixedly connected to the inner wall of the light-shielding cylinder 1. When the movable cylinder 10 is moved into the light-shielding cylinder 1, the adjusting rod 7 is pushed. The adjusting rod 7 drives the light-shielding frame 5 to rotate. The rotation of the light-shielding frame 5 drives the light-shielding film body 6 to rotate, so that the light-shielding frame 5 moves between the mounting cylinder 2 and the light-shielding cylinder 1. The spring 11 pushes the movable cylinder 10 to move, so that the movable cylinder 10 is inserted into the light-shielding frame 5. The light shield 5 is then fixed in place. When the light is dim and the light shield body 6 is not needed, the moving cylinder 10 is moved to separate it from the light shield 5. The adjusting rod 7 is pushed, which rotates the light shield 5 and the light shield body 6, separating the light shield 5 from the mounting cylinder 2 and the light shield cylinder 1. The moving cylinder 10 is then released, and the spring 11 pushes it to move, connecting it to the mounting cylinder 2. This seals the mounting cylinder 2 and the light shield cylinder 1, preventing external light from entering and affecting subsequent shooting. The light shield body 6 can be adjusted according to usage requirements without frequent disassembly of the light shield cylinder 1, simplifying the operation process and improving shooting efficiency.

[0043] Specifically, a movable groove is provided on the outer wall of the light-shielding cylinder 1, and a movable rod 8 is slidably inserted into the movable groove. One end of the movable rod 8 is fixedly connected to the outer wall of the movable cylinder 10, and the other end of the movable rod 8 extends out of the movable groove.

[0044] Furthermore, a fixed rod 9 is fixedly installed at one end of the moving rod 8 that protrudes from the moving groove, and the end of the fixed rod 9 away from the moving rod 8 is inserted and connected to the adjusting rod 7.

[0045] It should be noted that one end of the moving rod 8 is fixedly connected to the outer wall of the moving cylinder 10, and the other end of the moving rod 8 passes through the moving groove and is fixedly connected to the fixed rod 9. The end of the fixed rod 9 away from the moving rod 8 is inserted and connected to the adjusting rod 7. Pushing the moving rod 8 causes the moving cylinder 10 to move, so that the moving cylinder 10 moves into the light-shielding cylinder 1. Pushing the adjusting rod 7 causes the light-shielding frame 5 to rotate, and the rotation of the light-shielding frame 5 causes the light-shielding film body 6 to rotate, so that the light-shielding frame 5 moves between the light-shielding cylinder 1 and the mounting cylinder 2. The moving rod 8 is then released, and the moving cylinder 10 is pushed to move by the elastic force of the spring 11, so that the moving cylinder 10 is inserted and connected to the light-shielding frame 5. The movement of the moving cylinder 10 causes the moving rod 8 to move, and the moving rod 8 causes the fixed rod 9 to move, so that the fixed rod 9 is inserted and connected to the adjusting rod 7, thereby fixing the light-shielding frame 5 and preventing the rotation of the light-shielding frame 5 from affecting the light-shielding effect during use.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable optical instrument diaphragm mechanism, characterized by include: Light-shielding tube (1); A fixing plate (4) is fixedly connected at one end to one end of a light-shielding tube (1); Mounting cylinder (2), the mounting cylinder (2) is located at the front end of the light-shielding cylinder (1), and the end of the mounting cylinder (2) near the light-shielding cylinder (1) is fixedly connected to the end of the fixing plate (4) away from the light-shielding cylinder (1); A light-shielding block (3) is fixedly installed at the end of the mounting cylinder (2) away from the light-shielding cylinder (1); A light-shielding mechanism is disposed between a light-shielding cylinder (1) and a mounting cylinder (2). The light-shielding mechanism includes an adjustment part and a light-shielding part. The light-shielding part is hinged to a fixed plate (4) and a mounting cylinder (2). The adjustment part is fixedly connected to the light-shielding part. The adjustment part is used to push the light-shielding part to move.

2. An adjustable optical instrument visor mechanism according to claim 1, wherein The light-shielding part includes: A light-shielding frame (5) is provided, one end of which is slidably connected to the end of the light-shielding cylinder (1) near the fixed plate (4), and the other end of which is slidably connected to the end of the mounting cylinder (2) near the light-shielding cylinder (1). The outer wall of the light-shielding frame (5) is hinged to the light-shielding cylinder (1) and the mounting cylinder (2), and the outer wall of the light-shielding frame (5) is fixedly connected to the adjustment part. The light-shielding film body (6) is disposed inside the light-shielding frame (5), and the outer wall of the light-shielding film body (6) is interlocked with the inner wall of the light-shielding frame (5).

3. An adjustable optical instrument visor mechanism according to claim 2, wherein The adjustment part includes an adjustment rod (7), one end of which is fixedly connected to the outer wall of the light shield (5), and the other end of which is fixedly connected to one side of the fixing plate (4).

4. The adjustable optical instrument visor mechanism of claim 2, wherein, A movable cylinder (10) is slidably inserted inside the light-shielding cylinder (1), and one end of the movable cylinder (10) extends out of the light-shielding cylinder (1) and is inserted into the light-shielding frame (5).

5. An adjustable optical instrument visor mechanism according to claim 4, wherein The light-shielding cylinder (1) is provided with a plurality of springs (11), one end of each spring (11) is fixedly connected to the inner wall of the light-shielding cylinder (1), and the other end of each spring (11) is fixedly connected to the end of the movable cylinder (10) away from the light-shielding frame (5).

6. An adjustable optical instrument visor mechanism according to claim 4, wherein The outer wall of the light-shielding cylinder (1) is provided with a movable groove, and a movable rod (8) is slidably inserted into the movable groove. One end of the movable rod (8) is fixedly connected to the outer wall of the movable cylinder (10), and the other end of the movable rod (8) extends out of the movable groove.

7. An adjustable optical instrument visor mechanism according to claim 6, wherein A fixed rod (9) is fixedly installed at one end of the moving rod (8) that protrudes from the moving groove. The end of the fixed rod (9) away from the moving rod (8) is inserted and connected to the adjusting rod (7).

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