An ambient light blocking mechanism

Abstract

The utility model discloses an environmental light shielding mechanism relates to environmental light shielding technical field, monochromatic box one side is fixed with fixed pipe, fixed pipe communicates with monochromatic box, light -shielding cover, the light -shielding cover is located fixed pipe away from monochromatic box one end, be equipped with the limiting mechanism of being able to with fixed pipe and light -shielding cover each other fixed between the light -shielding cover and fixed pipe, connecting mechanism, the connecting mechanism is located fixed pipe both sides, is used for connecting light -shielding cover and fixed pipe, through the convex block rotation round plate, and the L -shaped block is rotated and is inserted into the inside of slot in arc -shaped groove with round plate, and this is fixed to light -shielding cover and fixed pipe, simple and practical, avoid the abrasion of the long -term use of thread and cause the light -shielding cover to be unable normal switch, and through the setting sliding plate and rotating lever simultaneously make the light -shielding cover rotatable accomodate to fixed pipe bottom, avoid the light -shielding cover to be placed in other places and lead to loss.

Description

Technical Field

[0001] This utility model relates to the field of ambient light blocking technology, specifically an ambient light blocking mechanism. Background Technology

[0002] Near-infrared light is an electromagnetic wave that lies between visible and mid-infrared light. According to the American Society for Testing and Materials (ASMT), it refers to electromagnetic waves with wavelengths ranging from 780 to 2526 nm. Conventionally, the near-infrared region is further divided into near-infrared short-wave and near-infrared long-wave regions. The near-infrared region was the first non-visible light region discovered by humans.

[0003] A reflective component for an infrared spectrometer, patent number CN218470531U, is provided with a monochromatic box. The left side of the monochromatic box is equipped with a light-shielding mechanism, and the right side of the monochromatic box is connected to a connecting pipe located below the light-shielding mechanism. The right side of the connecting pipe is connected to a detection box. The front and rear side walls of the inner cavity of the detection box are fixedly connected to the same first reflector located to the right of the connecting pipe. The inside of the detection box is fixedly connected to a reflective detector located below the first reflector.

[0004] However, research has shown that the aforementioned patents still have the following drawbacks:

[0005] When the light-shielding cover and the fixing tube are fixed by threaded connection, the light-shielding cover needs to be removed and installed every time it is used. Due to the high frequency of use, the threads may wear out over time, which may cause the light-shielding cover to be difficult to install or unable to be installed. At the same time, the light-shielding cover is easy to lose when placed in other places after being removed from the fixing tube. Therefore, it is necessary to optimize the ambient light blocking mechanism through technological innovation and design optimization. Utility Model Content

[0006] When the light-shielding cover and the fixing tube are fixed by a threaded connection, the light-shielding cover needs to be removed and installed every time it is used. Due to the high frequency of use, the threads may wear down over time, which may cause the light-shielding cover to be difficult to install or even impossible to install. At the same time, the light-shielding cover is easy to lose if it is placed elsewhere after being removed from the fixing tube. In order to solve the above problems, this application provides an ambient light blocking mechanism. The mechanism uses a convex plate to rotate a circular plate, which drives an L-shaped block to rotate in an arc groove and insert into the slot, thereby fixing the light-shielding cover to the fixing tube. This mechanism is simple and practical, and avoids the light-shielding cover from being unable to open and close properly due to wear of the threads caused by prolonged use. At the same time, by setting a sliding plate and a gripping plate, the light-shielding cover can be rotated and stored at the bottom of the fixing tube, preventing the light-shielding cover from being lost if placed elsewhere.

[0007] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0008] An ambient light blocking mechanism includes:

[0009] A monochrome box, wherein a fixing tube is fixed to one side of the monochrome box and the fixing tube is connected to the monochrome box;

[0010] A light-shielding cover is located at the end of the fixed tube away from the monochrome box, and a limiting mechanism is provided between the light-shielding cover and the fixed tube to fix the fixed tube and the light-shielding cover to each other.

[0011] A connecting mechanism is located on both sides of the fixed tube and is used to connect the light-shielding cover and the fixed tube.

[0012] In one possible implementation, the light-shielding cover includes a ring with a circular plate rotatably mounted inside the ring, and a protrusion fixed on the circular plate.

[0013] In one possible implementation, the limiting mechanism includes an arc-shaped groove on the side of the fixed tube facing the circular plate, a slot is provided inside the arc-shaped groove, and an L-shaped block is fixed on the side of the circular plate facing the fixed tube, and the L-shaped block is aligned with the arc-shaped groove and inserted.

[0014] In one possible implementation, the L-shaped block can be inserted into the arc-shaped groove, and the L-shaped block can be rotated into the slot. The circular plate is rotated by the protrusion, and the circular plate drives the L-shaped block to rotate in the arc-shaped groove and insert into the slot.

[0015] In one possible implementation, a magnetic block three is fixed inside the slot, and a magnetic block four is fixed on the L-shaped block. The magnetic blocks three and four attract each other, improving the tightness of the L-shaped block when inserted into the slot.

[0016] In one possible implementation, the connecting mechanism includes sliding grooves formed on both sides of the fixed tube. A sliding plate is provided inside the sliding groove, and a rotating rod is rotatably mounted on the sliding plate via a rotating shaft. The rotating rod is fixedly connected to a ring. Pulling the light-shielding cover can cause the sliding plate to slide in the sliding groove. Then, rotating the light-shielding cover downward will cause the rotating rod to rotate downward, thus preventing the light-shielding cover from blocking the fixed tube.

[0017] In one possible implementation, a rectangular block is formed inside the sliding groove, a rectangular slot is formed inside the rectangular block, and a rectangular block is formed inside the rectangular slot. The rectangular block is fixedly connected to the sliding plate, and the rectangular block matches the rectangular slot. When the sliding plate slides in the sliding groove, the sliding plate drives the rectangular block to slide in the rectangular slot, which improves the stability of the sliding plate and also limits the sliding distance of the sliding plate.

[0018] In one possible implementation, a magnetic block one is fixed on the sliding plate, and a magnetic block two is fixed in the sliding groove. The magnetic block one and the magnetic block two attract each other, which can prevent the sliding plate from sliding in the sliding groove when the sliding plate is reset.

[0019] In summary, this utility model has at least one of the following beneficial technical effects:

[0020] 1. The round plate is rotated by the protrusion, and the round plate drives the L-shaped block to rotate in the arc groove and insert into the slot, thereby fixing the light shield and the fixing tube. It is simple and practical, and avoids the light shield from being unable to open and close properly due to wear of the threads caused by long-term use.

[0021] 2. By setting a sliding plate and a grab plate, the light-shielding cover can be rotated and stored at the bottom of the fixed tube, preventing the light-shielding cover from being lost due to being placed elsewhere. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the light-shielding cover and fixing tube of this utility model;

[0024] Figure 3 This is a schematic diagram of the fixed tube structure of this utility model;

[0025] Figure 4 This is a partial top cross-sectional view of the present invention.

[0026] Figure 5 This is a schematic diagram of the top cross-section of the arc-shaped groove of this utility model;

[0027] Figure 6 This is a schematic diagram of the back structure of the light-shielding cover of this utility model.

[0028] Reference numerals in the attached diagram: 1. Monochrome box; 2. Circular plate; 3. Fixed tube; 4. Protrusion; 5. Circular ring; 6. Sliding plate; 7. Magnetic block two; 8. Magnetic block one; 9. Sliding groove; 10. Rotating rod; 11. Arc groove; 12. Rectangular groove; 13. Rectangular block; 14. Slot; 15. Magnetic block three; 16. L-shaped block; 17. Magnetic block four. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The instrument placement rack involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] This embodiment describes the specific structure of an ambient light blocking mechanism, as detailed in the following reference. Figures 1-6 As shown, an ambient light blocking mechanism includes:

[0031] A monochrome box 1, with a fixing tube 3 fixed on one side of the monochrome box 1, and the fixing tube 3 is connected to the monochrome box 1;

[0032] A light-shielding cover is located at the end of the fixing tube 3 away from the monochrome box 1. A limiting mechanism is provided between the light-shielding cover and the fixing tube 3 to fix the fixing tube 3 and the light-shielding cover to each other.

[0033] The connecting mechanism is located on both sides of the fixed tube 3 and is used to connect the light-shielding cover and the fixed tube 3.

[0034] The light-shielding cover includes a ring 5, inside which a circular plate 2 rotates, and a protrusion 4 is fixed on the circular plate 2.

[0035] When the light shield and fixing tube 3 are fixed by threaded connection, the light shield needs to be removed and installed every time it is used. Due to the high frequency of use, the threads may wear out over time, which may cause the light shield to be difficult to install or even impossible to install.

[0036] The limiting mechanism includes an arc-shaped groove 11 opened on the side of the fixed tube 3 facing the circular plate 2. A slot 14 is opened inside the arc-shaped groove 11. An L-shaped block 16 is fixed on the side of the circular plate 2 facing the fixed tube 3. The L-shaped block 16 is aligned with the arc-shaped groove 11 and inserted. The L-shaped block 16 can be inserted into the arc-shaped groove 11 and can rotate into the slot 14. The circular plate 2 is rotated by the protrusion 4. The circular plate 2 drives the L-shaped block 16 to rotate in the arc-shaped groove 11 and insert into the slot 14. A magnetic block three 15 is fixed inside the slot 14. A magnetic block four 17 is fixed on the L-shaped block 16. The magnetic blocks three 15 and four 17 attract each other, improving the tightness of the L-shaped block 16 inserted into the slot 14.

[0037] At the same time, the light-shielding cover is prone to being lost after being removed from the fixing tube 3.

[0038] The connecting mechanism includes sliding grooves 9 on both sides of the fixed tube 3. A sliding plate 6 is provided inside the sliding groove 9. A rotating rod 10 is rotatably mounted on the sliding plate 6 via a rotating shaft. The rotating rod 10 is fixedly connected to the ring 5. Pulling the light-shielding cover can cause the sliding plate 6 to slide in the sliding groove 9. Then, rotating the light-shielding cover downward will cause the rotating rod 10 to rotate downward, preventing the light-shielding cover from blocking the fixed tube 3. A rectangular block 13 is provided inside the sliding groove 9. A rectangular groove 12 is provided inside the rectangular block 13. A rectangular block 13 is provided inside the rectangular groove 12. The rectangular block 13 is fixedly connected to the sliding plate 6 and matches the rectangular groove 12. When the sliding plate 6 slides in the sliding groove 9, the sliding plate 6 drives the rectangular block 13 to slide in the rectangular groove 12, which improves the stability of the sliding plate 6 and also limits the sliding distance of the sliding plate 6.

[0039] More importantly, a magnetic block 8 is fixed on the sliding plate 6, and a magnetic block 7 is fixed in the sliding groove 9. The magnetic blocks 8 and 7 attract each other, which can prevent the sliding plate 6 from sliding in the sliding groove 9 when the sliding plate 6 is reset.

[0040] When the staff needs to use the monochrome box 1, rotate the protrusion 4 so that the L-shaped block 16 is not inside the slot 14, pull the light-shielding cover outward, the light-shielding cover drives the sliding plate 6 to slide, the sliding plate 6 drives the rectangular block 13 to slide in the rectangular groove 12, and then rotate the light-shielding cover, the light-shielding cover drives the rotating rod 10 to rotate, the light-shielding cover will rotate to the bottom of the fixed tube 3, no longer blocking the fixed tube 3. After the monochrome box 1 is used, the light-shielding cover can be closed by reversing the operation.

[0041] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An ambient light blocking mechanism, characterized in that, include: A monochrome box (1) is provided with a fixing tube (3) on one side, and the fixing tube (3) is connected to the monochrome box (1). A light-shielding cover is located at the end of the fixed tube (3) away from the monochrome box (1). A limiting mechanism is provided between the light-shielding cover and the fixed tube (3) to fix the fixed tube (3) and the light-shielding cover to each other. A connecting mechanism is located on both sides of the fixing tube (3) and is used to connect the light-shielding cover and the fixing tube (3).

2. The ambient light blocking mechanism as described in claim 1, characterized in that: The light-shielding cover includes a ring (5), inside which a circular plate (2) rotates, and a protrusion (4) is fixed on the circular plate (2).

3. The ambient light blocking mechanism as described in claim 2, characterized in that: The limiting mechanism includes an arc-shaped groove (11) opened on the side of the fixed tube (3) facing the circular plate (2), a slot (14) is opened inside the arc-shaped groove (11), and an L-shaped block (16) is fixed on the side of the circular plate (2) facing the fixed tube (3).

4. The ambient light blocking mechanism as described in claim 3, characterized in that: The L-shaped block (16) can be inserted into the arc groove (11), and the L-shaped block (16) can be rotated into the slot (14).

5. An ambient light blocking mechanism as described in claim 4, characterized in that: A magnetic block three (15) is fixed inside the slot (14), and a magnetic block four (17) is fixed on the L-shaped block (16). The magnetic block three (15) and the magnetic block four (17) attract each other.

6. The ambient light blocking mechanism as described in claim 1, characterized in that: The connecting mechanism includes sliding grooves (9) on both sides of the fixed tube (3), a sliding plate (6) is provided inside the sliding groove (9), and a rotating rod (10) is rotatably mounted on the sliding plate (6) via a rotating shaft. The rotating rod (10) is fixedly connected to the ring (5).

7. An ambient light blocking mechanism as described in claim 6, characterized in that: The sliding groove (9) has a rectangular block (13) inside, the rectangular block (13) has a rectangular groove (12) inside, the rectangular groove (12) has a rectangular block (13) inside, the rectangular block (13) is fixedly connected to the sliding plate (6), and the rectangular block (13) matches the rectangular groove (12).

8. An ambient light blocking mechanism as described in claim 7, characterized in that: A magnetic block 1 (8) is fixed on the sliding plate (6), and a magnetic block 2 (7) is fixed in the sliding groove (9). The magnetic block 1 (8) and the magnetic block 2 (7) attract each other.

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