Lens protection structure for optical instrument

Abstract

The utility model relates to the technical field of optical instrument accessories, and discloses a lens protection structure for an optical instrument, which comprises a first protection cylinder, one end of the first protection cylinder is in threaded connection with the upper end of a second protection cylinder, and protection mechanisms are arranged in the first protection cylinder and the second protection cylinder; the periphery of the film is arranged on the side close to the pressurizing box, and the middle of the periphery of the one-way valve assembly is fixedly connected to the side away from the pressurizing box. According to the lens protection structure for the optical instrument, the handle is screwed according to the thickness of a lens, so that the pressurizing box rotates and moves in the first protection cylinder and the second protection cylinder at the same time, the distance between the protection mechanisms in the first protection cylinder and the second protection cylinder is adjusted, then the first protection cylinder and the second protection cylinder are connected, and the lens is protected. The inflator inflates air into the pressurizing box through the one-way valve assembly, so that the thin film expands, the thin film wraps and supports the periphery of the lens, and the lenses with different thicknesses can be placed and protected.

Description

Technical Field

[0001] This utility model relates to the field of optical instrument accessories technology, and in particular to a lens protection structure for optical instruments. Background Technology

[0002] In the use of optical instruments, lenses are key components, and their performance and integrity directly affect the imaging quality and working efficiency of optical instruments. In practical applications, lenses often face various potential damage risks, such as collisions, scratches, and dust contamination.

[0003] Different types of optical instruments use lenses of varying thicknesses, and existing lens protection structures mostly only protect lenses of a single thickness, failing to meet diverse usage needs. When a lens of a different thickness needs to be replaced, the entire protection structure must be replaced, which is cumbersome and costly. Therefore, designing a protection structure capable of housing and protecting lenses of different thicknesses has become an urgent problem to be solved in this field. Utility Model Content

[0004] The main objective of this invention is to provide a lens protection structure for optical instruments, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a lens protection structure for optical instruments, including a protective cylinder one, one end of which is threadedly connected to the upper end of a protective cylinder two, and both the protective cylinder one and the protective cylinder two are provided with a protection mechanism inside.

[0006] The protection mechanism includes a pressure box, a one-way valve assembly, a diaphragm, and a handle. The outer periphery of the pressure box is threadedly connected to the inner sidewalls of the first and second protective cylinders. The outer periphery of the diaphragm is disposed on the side of the pressure box that is close to it. The outer periphery of the one-way valve assembly is fixedly connected to the side of the pressure box that is far from it. The upper side of the handle is fixedly connected to the lower middle part of the pressure box.

[0007] Preferably, a spring is provided on the side of the pressure box that is far from each other, and a bottom ring is provided at the end of the spring that is far from the protection mechanism. The bottom ring is provided on the inner sidewalls of the first and second protective cylinders that are far from each other.

[0008] Preferably, a force-induced color-changing film is provided on one side of the lower part of the pressure box.

[0009] Preferably, the film has a plurality of folds, which are used to stretch the film.

[0010] Preferably, the one-way valve assembly includes an air inlet cylinder, a bracket, a connecting column, a sealing gasket, a limiting block, and a second spring. The outer periphery of the air inlet cylinder is fixedly connected to the lower side of the pressurization box, the outer periphery of the bracket is fixedly connected to the upper part of the inner side of the air inlet cylinder, the outer periphery of the connecting column is slidably connected to the middle part of the bracket, the middle part of the sealing gasket is fixedly connected to the upper end of the connecting column, the middle part of the limiting block is fixedly connected to the lower end of the connecting column, and the second spring is disposed on the outer periphery of the connecting column and between the limiting block and the bracket.

[0011] Preferably, a sealing ring is provided at the end of the air inlet cylinder near the spring.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Depending on the thickness of the lens, turn the handle to make the pressure box rotate and move inside the first and second protective cylinders, thereby adjusting the distance between the protective mechanisms inside the first and second protective cylinders. Then connect the first and second protective cylinders, and inflate the pressure box with air through the one-way valve assembly, causing the diaphragm to expand. This allows the diaphragm to wrap around and support the lens, thus enabling the placement and protection of lenses of different thicknesses. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a lens protection structure for optical instruments according to the present invention.

[0015] Figure 2 This is a schematic diagram of the protective mechanism structure of a lens protection structure for optical instruments according to the present invention;

[0016] Figure 3 This is a schematic diagram of a one-way valve assembly for lens protection in optical instruments according to the present invention.

[0017] In the diagram: 1. Protective cylinder one; 2. Protective cylinder two; 3. Protective mechanism; 301. Pressure box; 302. One-way valve assembly; 3021. Air inlet cylinder; 3022. Bracket; 3023. Connecting column; 3024. Sealing gasket; 3025. Limiting block; 3026. Spring two; 3027. Sealing ring; 303. Membrane; 304. Handle; 305. Mechanochromic film; 4. Spring one; 5. Bottom ring. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1-3As shown, a lens protection structure for optical instruments includes a protective cylinder 1, one end of which is threaded to the upper end of a protective cylinder 2. Both protective cylinders 1 and 2 are equipped with protective mechanisms 3. In summary, depending on the thickness of the lens, the handle 304 is turned, causing the pressure box 301 to rotate and move inside the protective cylinders 1 and 2, thereby adjusting the distance between the protective mechanisms 3 inside the protective cylinders 1 and 2. Then, the protective cylinders 1 and 2 are connected, and an air pump inflates the pressure box 301 through a one-way valve assembly 302, causing the diaphragm 303 to expand. This allows the diaphragm 303 to wrap around and support the lens, thus enabling the placement and protection of lenses of different thicknesses.

[0020] The protection mechanism 3 includes a pressure box 301, a one-way valve assembly 302, a diaphragm 303, and a handle 304. The outer periphery of the pressure box 301 is threadedly connected to the inner wall of the first protective cylinder 1 and the second protective cylinder 2. The outer periphery of the diaphragm 303 is located on the side of the pressure box 301 that is close to it. The middle part of the outer periphery of the one-way valve assembly 302 is fixedly connected to the side of the pressure box 301 that is far away from it. The upper side of the handle 304 is fixedly connected to the middle part of the lower side of the pressure box 301. By turning the handle 304, the pressure box 301 rotates and moves inside the first protective cylinder 1 and the second protective cylinder 2, thereby adjusting the distance between the protection mechanisms 3 inside the first protective cylinder 1 and the second protective cylinder 2. Air is injected into the pressure box 301 through the one-way valve assembly 302, causing the diaphragm 303 to expand. This allows the diaphragm 303 to wrap around and support the outer periphery of the lens, thus enabling the placement and protection of lenses of different thicknesses.

[0021] A spring 4 is provided on one side of the pressure box 301 that is far away from each other. A bottom ring 5 is provided on the end of the spring 4 that is far away from the protection mechanism 3. The bottom ring 5 is located on the inner side wall of the protection cylinder 1 and the protection cylinder 2 that are far away from each other. The protection mechanism 3 is pushed by the spring 4 to prevent the protection mechanism 3 from being displaced due to vibration.

[0022] A gravitational color-changing film 305 is provided on one side of the lower part of the pressure box 301. When the pressure box 301 is filled with air, the air pressure inside the pressure box 301 increases, which causes the gravitational color-changing film 305 to be stressed, thereby changing the color of the gravitational color-changing film 305. By observing the color of the gravitational color-changing film 305, the pressure inside the pressure box 301 can be intuitively understood.

[0023] The thin film 303 has several folds, which are used to stretch the thin film 303. When there is no external force, the folds on the thin film 303 cause the thin film 303 to shrink into a small circular film. When the pressure box 301 is filled with air, the folds of the thin film 303 are stretched open, which increases the surface area of ​​the thin film 303, thereby wrapping and supporting the outer periphery of the lens, thus protecting the lens.

[0024] One-way valve assembly 302 includes an air inlet cylinder 3021, a bracket 3022, a connecting post 3023, a sealing gasket 3024, a limiting block 3025, and a second spring 3026. The outer periphery of the air inlet cylinder 3021 is fixedly connected to the lower side of the pressure box 301. The outer periphery of the bracket 3022 is fixedly connected to the upper part of the inner side of the air inlet cylinder 3021. The outer periphery of the connecting post 3023 is slidably connected to the middle part of the bracket 3022. The middle part of the sealing gasket 3024 is fixedly connected to the upper end of the connecting post 3023. The middle part of the limiting block 3025 is fixedly connected to the lower end of the connecting post 3023. The second spring 3026 is provided. On the outer periphery of the connecting column 3023, the second spring 3026 is disposed between the limiting block 3025 and the bracket 3022. When no external force is applied, the second spring 3026 pushes the limiting block 3025, which pulls the sealing gasket 3024 through the connecting column 3023, so that the sealing gasket 3024 seals the air inlet cylinder 3021. Therefore, external gas can enter the air inlet cylinder 3021, while the gas inside the air inlet cylinder 3021 cannot be discharged. When it is necessary to release the gas inside the air inlet cylinder 3021, the gas can be discharged by pushing the limiting block 3025 with other objects.

[0025] A sealing ring 3027 is provided at one end of the air inlet cylinder 3021 near the spring 4. When the output port of the air pump is inserted into the air inlet cylinder 3021, the sealing ring 3027 seals the air inlet cylinder 3021 and the output port of the air pump to prevent air leakage.

[0026] Working principle:

[0027] Depending on the thickness of the lens, the handle 304 is turned so that the pressure box 301 rotates and moves inside the protective cylinder 1 and the protective cylinder 2, thereby adjusting the distance between the protective mechanisms 3 inside the protective cylinder 1 and the protective cylinder 2. Then the protective cylinder 1 and the protective cylinder 2 are connected, and the air pump inflates the pressure box 301 through the one-way valve assembly 302, causing the diaphragm 303 to expand. This causes the diaphragm 303 to wrap around and support the outer periphery of the lens, thus allowing lenses of different thicknesses to be placed and protected.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lens protection structure for optical instruments, comprising a protective sleeve (1), characterized in that: One end of the first protective cylinder (1) is threaded to the upper end of the second protective cylinder (2), and both the first protective cylinder (1) and the second protective cylinder (2) are equipped with a protective mechanism (3). The protection mechanism (3) includes a pressure box (301), a one-way valve assembly (302), a diaphragm (303), and a handle (304). The outer periphery of the pressure box (301) is threadedly connected to the inner sidewall of the first protective cylinder (1) and the second protective cylinder (2). The outer periphery of the diaphragm (303) is arranged on the side close to the pressure box (301). The middle part of the outer periphery of the one-way valve assembly (302) is fixedly connected to the side away from the pressure box (301). The upper side of the handle (304) is fixedly connected to the middle part of the lower side of the pressure box (301).

2. The lens protection structure for optical instruments according to claim 1, characterized in that: The pressure box (301) is provided with a spring (4) on one side away from each other. The end of the spring (4) away from the protection mechanism (3) is provided with a bottom ring (5). The bottom ring (5) is provided on the inner sidewalls of the first protection cylinder (1) and the second protection cylinder (2) away from each other.

3. The lens protection structure for optical instruments according to claim 1, characterized in that: A force-sensitive color-changing film (305) is provided on one side of the lower part of the pressure box (301).

4. The lens protection structure for optical instruments according to claim 1, characterized in that: The film (303) has a plurality of folds, which are used to stretch the film (303).

5. A lens protection structure for optical instruments according to claim 1, characterized in that: The one-way valve assembly (302) includes an air inlet cylinder (3021), a bracket (3022), a connecting column (3023), a sealing gasket (3024), a limiting block (3025), and a second spring (3026). The outer periphery of the air inlet cylinder (3021) is fixedly connected to the lower side of the pressurization box (301). The outer periphery of the bracket (3022) is fixedly connected to the upper part of the inner side of the air inlet cylinder (3021). The outer periphery of the connecting column (3023) is slidably connected to the middle part of the bracket (3022). The middle part of the sealing gasket (3024) is fixedly connected to the upper end of the connecting column (3023). The middle part of the limiting block (3025) is fixedly connected to the lower end of the connecting column (3023). The second spring (3026) is disposed on the outer periphery of the connecting column (3023) and is disposed between the limiting block (3025) and the bracket (3022).

6. A lens protection structure for optical instruments according to claim 5, characterized in that: A sealing ring (3027) is provided at the end of the air inlet cylinder (3021) near the spring (4).

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