Automatic protection device for optical instruments

Abstract

The application discloses an optical instrument automatic protection device, and mainly relates to the field of optical instruments. The device comprises a protection head main body, one end of which is connected with a first optical instrument / component to be protected, and the other end is connected with a second optical instrument / component. An adapter is arranged on one end of the protection head main body and is matched with a connecting sleeve of the second optical instrument / component. An installation hole is arranged on the outer wall of the adapter. A spring is arranged at the bottom of the installation hole. A valve core is arranged on the top of the spring. A valve core through hole is arranged on the valve core. A touch inclined surface matched with the connecting sleeve of the second optical instrument / component is arranged on the top of one side of the valve core close to the second optical instrument / component. The device can automatically close the interface part optical path channel when the optical instrument / component is disassembled, and can isolate the lens and other components which need to be kept clean from the environment. When the optical instrument / component needs to be connected, the optical path channel is automatically opened.

Description

Technical Field

[0001] This invention relates to the field of optical instruments, specifically an automatic protection device for optical instruments. Background Technology

[0002] Different optical instruments / components are typically connected via interfaces. When disassembled and stored separately, the optical lenses or other clean parts at the connection points are exposed to the environment, making them susceptible to contamination, bumps, and touches. The current common practice is to cover the optical instruments / components requiring protection with a cap. When disassembling connected optical instruments, the interface needs to be manually capped to protect the optical path. This capping step is easily forgotten, and human error before or during capping can easily damage the optical components. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide an automatic protection device for optical instruments. This device can automatically close the optical path channel at the interface when optical instruments / components are disassembled, isolating components such as lenses that need to be kept clean from the environment. When optical instruments / components are connected, the optical path channel automatically opens.

[0004] To achieve the above objectives, the present invention employs the following technical solution:

[0005] An automatic protection device for optical instruments includes a protection head body. The protection head body has an optical path through-hole extending from one end to the other. One end of the protection head body is connected to a first optical instrument / component to be protected, and the other end is connected to a second optical instrument / component. The end of the protection head body away from the first optical instrument / component has a connector adapted to the connecting sleeve of the second optical instrument / component. The outer wall of the connector has a mounting hole intersecting with the optical path through-hole. A spring is located at the bottom of the mounting hole, and a valve core is located at the top of the spring. The top of the valve core extends upward from the mounting hole and is slidably connected to the mounting hole. The valve core has a valve core through-hole, and the top of the valve core on the side closer to the second optical instrument / component has an actuating inclined surface adapted to the connecting sleeve of the second optical instrument / component.

[0006] Preferably, the protective head body has a plug hole at the end away from the plug connector that is compatible with the first optical instrument / component.

[0007] Preferably, a sealing element is provided at the bottom of the mounting hole, and the sealing element is detachably connected to the mounting hole.

[0008] Preferably, one end of the spring is connected to the sealing element, and the other end is connected to the valve core.

[0009] Preferably, the upper surface of the valve core is an arc-shaped surface.

[0010] Preferably, the mounting hole is a stepped hole, and the diameter of the lower part of the mounting hole is larger than the diameter of the upper part, and the shape of the valve core is adapted to the mounting hole.

[0011] Preferably, the outer wall of the valve core is provided with an anti-rotation limiting block, and the inner wall of the mounting hole is provided with an anti-rotation limiting groove adapted to the anti-rotation limiting block.

[0012] Preferably, the cross-sections of the valve core through hole and the optical path through hole are both circular, and the inner diameter of the valve core through hole is larger than the inner diameter of the optical path through hole.

[0013] Preferably, the axis of the mounting hole is perpendicular to the axis of the optical path through hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] One end of the protective head body of the present invention is connected to the first optical instrument / component to be protected, and the other end is connected to the second optical instrument / component through a connector. When the connecting sleeve of the second optical instrument / component is connected to the connector, the end of the connecting sleeve abuts against the actuating inclined surface, giving the valve core a downward pushing force, causing the valve core to move down. When the valve core is fully inserted into the mounting hole, the connecting sleeve is fitted onto the connector, completing the connection between the second optical instrument / component and the protective head body. At this time, the valve core through hole can allow light passing through the optical path through hole, and the optical path channel is automatically opened. When the second optical instrument / component is removed from the connector, the spring pushes the valve core upward. During the spring reset process, the valve core through hole and the optical path through hole gradually separate, and the valve core closes the optical path channel. This enables the automatic closure of the optical path channel at the interface when disassembling between optical instruments, isolating components such as lenses that need to be kept clean from the environment and preventing damage to the optical components. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the present invention;

[0017] Appendix Figure 2 This is one of the three-dimensional structural diagrams of the protective head body;

[0018] Appendix Figure 3 This is the second schematic diagram of the three-dimensional structure of the protective head body;

[0019] Appendix Figure 4 This is a three-dimensional structural diagram of the valve core;

[0020] Appendix Figure 5 This is a schematic diagram of the internal structure of the protective head body;

[0021] Appendix Figure 6 This is a schematic diagram showing the position of the anti-rotation limit block.

[0022] The following are the labels in the attached diagram: 1. Protective head body; 2. Optical path through hole; 3. First optical instrument / component; 4. Second optical instrument / component; 5. Connector; 6. Mounting hole; 7. Spring; 8. Valve core; 9. Valve core through hole; 10. Actuating inclined surface; 11. Connecting hole; 12. Sealing component; 13. Anti-rotation limit block. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0024] Example 1: As shown in the attached document Figure 1-4As shown, the present invention relates to an automatic protection device for optical instruments, comprising a protection head body 1. The protection head body 1 has an optical path through-hole 2 extending from one end to the other. Preferably, the protection head body 1 is a rotating structure, and the axis of the light rays passing through the optical path through-hole 2 coincides with the axis of the protection head body 1. One end of the protection head body 1 is connected to a first optical instrument / component 3 to be protected, and the other end is connected to a second optical instrument / component 4. The end of the protection head body 1 away from the first optical instrument / component 3 has a connector 5 adapted to the connecting sleeve of the second optical instrument / component 4. The connector 5 is part of the protection head body 1. Preferably, to facilitate the connection between the protection head body and the first optical instrument / component, the end of the protection head body 1 away from the connector 5 has a insertion hole 11 adapted to the first optical instrument / component 3, and the axis of the insertion hole 11 coincides with the axis of the light rays passing through the optical path through-hole 2. The outer wall of the connector 5 is provided with a mounting hole 6. The bottom end of the mounting hole 6 is located below the optical path through hole 2, and the axis of the mounting hole 6 intersects the axis of the optical path through hole 2. The axis of the mounting hole 6 and the axis of the optical path through hole 2 can intersect obliquely or perpendicularly. Preferably, to facilitate the processing of the mounting hole, the axis of the mounting hole 6 is perpendicular to the axis of the optical path through hole 2. A spring 7 is provided at the bottom of the mounting hole 6, and a valve core 8 is provided at the top of the spring 7. The top end of the valve core 8 extends upward out of the mounting hole 6 and is slidably connected to the mounting hole 6. The valve core 8 can slide up and down along the mounting hole 6. The mounting hole 6 can be either a blind hole or a through hole. Preferably, the mounting hole 6 is a through hole, and a sealing member 12 is provided at the bottom of the mounting hole 6. The sealing member 12 can be fixedly connected, threadedly connected, or snap-fit ​​connected to the mounting hole 6. Furthermore, one end of the spring 7 is connected to the sealing member 12, and the other end is connected to the valve core 8. Spring seats adapted to the spring 7 are fixedly provided at the top of the sealing member 12 and the bottom of the valve core 8 to prevent the valve core 8 from falling out of the mounting hole 6. The valve core 8 is provided with a valve core through hole 9, the axis of which is parallel to the axis of the light rays passing through the optical path through hole 2. When the spring 7 is in its initial state, the top of the valve core 8 extends out of the mounting hole 6, the valve core through hole 9 is located above the optical path through hole 2, and the length of the valve core 8 extending out of the mounting hole 6 is equal to the distance between the axis of the valve core through hole 9 and the axis of the optical path through hole 2. The top of the valve core 8 near the second optical instrument / component 4 is provided with an actuating inclined surface 10 adapted to the connecting sleeve of the second optical instrument / component 4. The height of the actuating inclined surface 10 near the first optical instrument / component 3 is higher than the height of the end near the second optical instrument / component 4.

[0025] In use, when the connecting sleeve of the second optical instrument / component 4 is connected to the connector 5, the end of the connecting sleeve abuts against the actuating inclined surface 10, giving the valve core 8 a downward pushing force, causing the valve core 8 to move down and the spring 7 to be compressed. When the valve core 8 is fully inserted into the mounting hole 6, the connecting sleeve is fitted onto the connector 5, completing the connection between the second optical instrument / component 4 and the protective head body 1. At this time, the axis of the valve core through hole 9 coincides with the axis of the light passing through the optical path through hole 2, and the optical path channel is automatically opened. When the second optical instrument / component 4 is removed from the connector 5, the spring 7 pushes the valve core 8 upward. During the process of the spring 7 resetting, the valve core through hole 9 and the optical path through hole 2 gradually separate, and the valve core 8 closes the optical path channel. This enables the automatic closure of the optical path channel at the interface when disassembling optical instruments, isolating components such as lenses that need to be kept clean from the environment and avoiding contamination of optical components.

[0026] Preferably, the upper surface of the valve core 8 is an arc-shaped surface, and the diameter of the arc-shaped surface is the same as the diameter of the connector 5, which can avoid gaps at the connection.

[0027] Furthermore, in order to reduce manufacturing and maintenance costs, the cross-sections of the valve core through hole 9 and the optical path through hole 2 are both circular, and the inner diameter of the valve core through hole 9 is larger than the inner diameter of the optical path through hole 2. Even if there is an error, it can be ensured that when the second optical instrument / component 4 is installed on the connector 5, there is no obstruction between the valve core 8 and the optical path through hole 2, which can reduce the manufacturing precision requirements.

[0028] Example 2: As shown in the attached document Figure 5 Based on Embodiment 1, this embodiment further improves the shape of the mounting hole 6 and the valve core 8, which facilitates assembly and prevents the valve core 8 from falling out of the mounting hole 6. Specifically, the mounting hole 6 is a stepped hole, and the diameter of the lower part of the mounting hole 6 is larger than the diameter of the upper part. The valve core 8 is a stepped column shape adapted to the mounting hole 6. The sealing member 12 and the mounting hole 6 can be connected by a thread. One end of the spring 7 abuts against the sealing member 12, and the other end abuts against the valve core 8.

[0029] Example 3: As shown in the attached document Figure 6 Based on the above embodiments, in order to prevent the valve core from rotating and to ensure that the axis of the valve core is always parallel to the axis of the optical path through hole, an anti-rotation limiting block 13 is vertically provided on the outer wall of the valve core 8, and an anti-rotation limiting groove is vertically provided on the inner wall of the mounting hole 6. The anti-rotation limiting block 13 is located in the anti-rotation limiting groove and can move up and down along the anti-rotation limiting groove. The cooperation between the anti-rotation limiting block 13 and the anti-rotation limiting groove can prevent the valve core 8 from rotating.

Claims

1. An automatic protection device for optical instruments, characterized in that: The device includes a protective head body (1), which has an optical path through hole (2) extending from one end to the other. One end of the protective head body (1) is connected to a first optical instrument / component (3) to be protected, and the other end is connected to a second optical instrument / component (4). The end of the protective head body (1) away from the first optical instrument / component (3) is provided with a connector (5) adapted to the connecting sleeve of the second optical instrument / component (4). The outer wall of the connector (5) The device is provided with a mounting hole (6), and the mounting hole (6) intersects with the optical path through hole (2). A spring (7) is provided at the bottom of the mounting hole (6), and a valve core (8) is provided at the top of the spring (7). The top of the valve core (8) extends upward out of the mounting hole (6) and is slidably connected with the mounting hole (6). A valve core through hole (9) is provided on the valve core (8). The top of the valve core (8) on the side close to the second optical instrument / component (4) is provided with an actuating inclined surface (10) adapted to the connecting sleeve of the second optical instrument / component (4).

2. The automatic protection device for optical instruments according to claim 1, characterized in that: The protective head body (1) has a plug hole (11) adapted to the first optical instrument / component (3) at one end away from the plug (5).

3. The automatic protection device for optical instruments according to claim 1, characterized in that: The bottom of the mounting hole (6) is provided with a sealing element (12).

4. The automatic protection device for optical instruments according to claim 3, characterized in that: The sealing element (12) is detachably connected to the mounting hole (6).

5. An automatic protection device for optical instruments according to claim 1 or 3, characterized in that: One end of the spring (7) is connected to the sealing member (12), and the other end is connected to the valve core (8).

6. The automatic protection device for optical instruments according to claim 1, characterized in that: The upper surface of the valve core (8) is an arc-shaped surface.

7. The automatic protection device for optical instruments according to claim 1, characterized in that: The mounting hole (6) is a stepped hole, and the diameter of the lower part of the mounting hole (6) is larger than the diameter of the upper part. The shape of the valve core (8) is adapted to the mounting hole (6).

8. An automatic protection device for optical instruments according to claim 1, characterized in that: The valve core (8) is provided with an anti-rotation limiting block (13) on its outer wall, and the mounting hole (6) is provided with an anti-rotation limiting groove that is adapted to the anti-rotation limiting block (13) on its inner wall.

9. An automatic protection device for optical instruments according to claim 1, characterized in that: The cross-sections of the valve core through hole (9) and the optical path through hole (2) are both circular, and the inner diameter of the valve core through hole (9) is larger than the inner diameter of the optical path through hole (2).

10. An automatic protection device for optical instruments according to claim 1, characterized in that: The axis of the mounting hole (6) is perpendicular to the axis of the optical path through hole (2).

Images