Fixing structure of anti-dazzling screen

Abstract

The utility model discloses a fixing structure of an anti-dazzling screen, which relates to the technical field of anti-dazzling screens and specifically comprises a fixing plate and an anti-dazzling screen body, and a placing groove for placing the anti-dazzling screen body is formed in the top of the fixing plate; two fixing blocks are symmetrically arranged on the top of the fixing plate, hinge blocks are hinged to the two fixing blocks, and arc-shaped abutting plates used for fixing the outer edge of the top of the anti-dazzling screen body are fixed to the opposite ends of the two hinge blocks. After the arc-shaped abutting plate is rotated, the arc-shaped abutting plate is rotated to be in a vertical state, then the anti-dazzling screen body is placed in the containing groove, the arc-shaped abutting plate is reversely rotated to the bottom of the arc-shaped abutting plate to abut against the top of the outer edge of the anti-dazzling screen body, then the long-strip-shaped locking block is rotated, and the anti-dazzling screen body is placed in the containing groove. The arc-shaped abutting plate is arranged in the long-strip-shaped open hole and is perpendicular to the long-strip-shaped open hole to form a cross-shaped structure, so that the arc-shaped abutting plate cannot be overturned any more, the anti-dazzling screen body is fixed, and use is easy and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of shading sheets, in particular to a fixing structure of a shading sheet. Background Art

[0002] The shading sheet, also known as the light shielding sheet, is an essential shading element in the fields of video cameras, mobile phone cameras, etc. Its purpose is to prevent stray light from entering the viewfinder and affecting the image quality. The light shielding sheet used in the camera has a center hole as the light-through hole.

[0003] Although the existing shading sheet has a corresponding fixing structure, it is not convenient to install and fix it, and can only be fixed by sticking. It is easy to fall off, which is not conducive to long-term use and has poor use effect. Therefore, it is urgent to improve it. Utility Model Content

[0004] The purpose of the present invention is to provide a fixing structure for a light shielding sheet to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0006] The utility model provides a fixing structure for a light shielding sheet, comprising a fixing plate and a light shielding sheet body. The fixing plate is provided with a placement groove on the top for placing the light shielding sheet body. A through hole penetrating the placement groove is provided at the center of the fixing plate, and the inner diameter of the through hole is greater than or equal to the outer diameter of the light-transmitting opening at the center of the light shielding sheet body.

[0007] Two fixing blocks are symmetrically arranged on the top of the fixing plate, and both fixing blocks are hinged with hinge blocks, and arc-shaped contact plates for fixing the outer edge of the top of the light shielding plate body are fixed at the opposite ends of the two hinge blocks;

[0008] A circular cavity is provided inside the fixing plate, and a locking component for locking the arc-shaped contact plate is provided inside the circular cavity.

[0009] Preferably, the locking assembly includes a rotating shaft rotatably connected to the bottom end of the circular cavity, and the top end of the rotating shaft passes through the outer top of the fixed plate and is fixedly connected to a long strip locking block; the arc-shaped contact plate is provided with a long strip opening that cooperates with the long strip locking block.

[0010] Preferably, the diameter of the elongated opening is larger than the cross section of the elongated locking block.

[0011] Preferably, a plurality of rotating shafts are arranged at equal intervals along the circumferential direction of the through hole, and a gear is sleeved on the rotating shaft; an annular strip is slidingly arranged on the inner circumference of the circular cavity, and teeth meshing with the gear are arranged at equal intervals on the inner side wall of the annular strip.

[0012] Preferably, annular grooves are provided at both upper and lower ends of the circular cavity, and balls adapted to the annular grooves are provided at both upper and lower ends of the annular strip.

[0013] Preferably, a mounting hole is provided on the fixing plate, and an adhesive plate is provided at the bottom of the fixing plate.

[0014] Preferably, a hole is provided at the bottom of the arc-shaped contact plate, and a clamping column adapted to the hole is provided at the top of the light-shielding plate body.

[0015] Preferably, the bottom of the elongated locking block and the top of the arc-shaped contact plate are both provided with magnets that cooperate with each other.

[0016] Compared with the existing technology, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. When in use, after rotating the arc-shaped contact plate, the arc-shaped contact plate is rotated into a vertical state, and then the shading sheet body is placed inside the placement groove, and then the arc-shaped contact plate is rotated in the opposite direction to the bottom of the arc-shaped contact plate to contact the top of the outer edge of the shading sheet body, and then the long strip locking block is rotated so that it is perpendicular to the long strip opening and forms a "cross" structure, so that the arc-shaped contact plate can no longer be flipped, thereby completing the fixation of the shading sheet body, which is simple and quick to use.

[0018] 2. When one of the long strip locking blocks is bent, it can drive the rotating shaft to rotate, and then the gear connected to the rotating shaft is rotated, and the gear drives the annular rack to rotate, and then the remaining gears, rotating shafts and long strip locking blocks can all be rotated, thereby facilitating the rotation of all the long strip locking blocks, thereby improving the convenience of use. It can not only lock the arc-shaped contact plate more stably and effectively through multiple long strip locking blocks, but also can be quickly unlocked when unlocking, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the arc-shaped contact plate of the utility model after flipping;

[0023] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 4 It is a longitudinal sectional view of the fixing plate of the utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 This utility model Figure 2 Enlarged view of point A in the middle;

[0027] Figure 7 This is a schematic structural diagram of the arc-shaped contact plate of the utility model;

[0028] Figure 8 This is a schematic diagram of the bottom structure of the fixed plate of the utility model;

[0029] In the picture:

[0030] 1. Fixing plate; 2. Placement groove; 3. Through hole; 4. Fixing block; 5. Hinge block; 6. Arc-shaped contact plate; 7. Locking assembly; 701. Rotating shaft; 702. Long strip locking block; 703. Long strip opening; 8. Circular cavity; 9. Gear; 10. Ring strip; 11. Teeth; 12. Annular groove; 13. Ball bearing; 14. Mounting hole; 15. Adhesive plate; 16. Shading plate body; 17. Hole; 18. Clamping column; 19. Magnet. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0032] See also Figures 1-8A fixing structure for a light shielding sheet includes a fixing plate 1 and a light shielding sheet body 16. A placement groove 2 for placing the light shielding sheet body 16 is provided on the top of the fixing plate 1. A through hole 3 penetrating the placement groove 2 is provided at the center of the fixing plate 1. The inner diameter of the through hole 3 is greater than or equal to the outer diameter of the light transmission opening at the center of the light shielding sheet body 16.

[0033] Two fixing blocks 4 are symmetrically arranged on the top of the fixing plate 1, and the two fixing blocks 4 are hinged with hinge blocks 5. The opposite ends of the two hinge blocks 5 are fixed with arc-shaped contact plates 6 for fixing the top outer edge of the light shielding plate body 16;

[0034] A circular cavity 8 is defined inside the fixing plate 1 , and a locking assembly 7 for locking the arc-shaped contact plate 6 is disposed inside the circular cavity 8 .

[0035] Furthermore, the locking assembly 7 includes a rotating shaft 701 rotatably connected to the bottom end of the circular cavity 8, and the top end of the rotating shaft 701 passes through the outer top of the fixed plate 1 and is fixedly connected to a long strip locking block 702; the arc-shaped contact plate 6 is provided with a long strip opening 703 that cooperates with the long strip locking block 702; when in use, the arc-shaped contact plate 6 is rotated to rotate into a vertical state, such as Figure 2 As shown, the shading sheet body 16 is then placed inside the placement slot 2, and then the arc-shaped contact plate 6 is rotated in the opposite direction to the bottom of the arc-shaped contact plate 6 to contact the top of the outer edge of the shading sheet body 16, and then the elongated locking block 702 is rotated so that it is perpendicular to the elongated opening 703 and forms a "cross" structure, so that the arc-shaped contact plate 6 can no longer be flipped, thereby completing the fixation of the shading sheet body 16, which is simple and quick to use.

[0036] Furthermore, the diameter of the elongated opening 703 is larger than the cross section of the elongated locking block 702 , so that when the arc-shaped contact plate 6 is rotated, there is enough reserved space for the elongated locking block 702 to pass through the elongated opening 703 .

[0037] Furthermore, a plurality of rotating shafts 701 are provided at equal intervals along the circumferential direction of the through hole 3, and a gear 9 is sleeved on the rotating shaft 701; an annular strip 10 is provided for sliding movement within the circular cavity 8, and teeth 11 meshing with the gear 9 are provided at equal intervals on the inner side wall of the annular strip 10; specifically, Figure 4As shown, when one of the long strip locking blocks 702 is bent, it can drive the rotating shaft 701 to rotate, thereby causing the gear 9 connected to the rotating shaft 701 to rotate, and the gear 9 drives the annular rack to rotate, thereby causing the remaining gears 9, the rotating shaft 701 and the long strip locking blocks 702 to rotate, thereby facilitating the rotation of all the long strip locking blocks 702, thereby improving the ease of use. It can not only lock the arc-shaped contact plate 6 more stably and effectively through multiple long strip locking blocks 702, but also can quickly unlock when unlocking, and the use effect is better.

[0038] Furthermore, the upper and lower ends of the circular cavity 8 are both connected to an annular groove 12, and the upper and lower ends of the annular strip 10 are both provided with balls 13 adapted to the annular groove 12; Figure 5 As shown, when the annular bar 10 rotates, the balls 13 roll inside the annular groove 12 , thereby improving the rotation stability of the annular bar 10 .

[0039] Furthermore, a mounting hole 14 is provided on the fixing plate 1, and an adhesive plate 15 is provided at the bottom of the fixing plate 1; the mounting hole 14 can enable it to be installed on electronic components or other objects that require the use of the shading sheet body 16, or a hole-free connection can be made through the adhesive plate 15, thereby improving the overall convenience of use.

[0040] Furthermore, a hole 17 is provided at the bottom of the arc-shaped resistance plate 6, and a clamping column 18 adapted to the hole 17 is provided at the top of the shading plate body 16; by adapting the clamping column 18 to the hole 17, the lateral stability between the shading plate body 16 and the arc-shaped resistance plate 6 is improved, thereby further improving the overall stability effect of the shading plate body 16.

[0041] Furthermore, the bottom of the long strip locking block 702 and the top of the arc-shaped contact plate 6 are both provided with magnets 19 that cooperate with each other. Figure 7 As shown, when the elongated locking block 702 and the elongated opening 703 are perpendicular to each other, the arc-shaped contact plate 6 is locked. At this time, the magnet 19 at the bottom of the elongated locking block 702 will contact and magnetically attract the magnet 19 at the top of the arc-shaped contact plate 6, thereby improving the stability of the elongated locking block 702 in this state, thereby improving the locking effect of the arc-shaped contact plate 6.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixing structure for a light shielding sheet, comprising a fixing plate (1) and a light shielding sheet body (16), characterized in that: The top of the fixing plate (1) is provided with a placement groove (2) for placing the light shielding plate body (16); the center of the fixing plate (1) is provided with a through hole (3) penetrating the placement groove (2); and the inner diameter of the through hole (3) is greater than or equal to the outer diameter of the light-transmitting opening at the center of the light shielding plate body (16); Two fixing blocks (4) are symmetrically arranged on the top of the fixing plate (1), and both fixing blocks (4) are hinged with hinge blocks (5), and arc-shaped contact plates (6) for fixing the outer edge of the top of the light-shielding plate body (16) are fixed at the opposite ends of the two hinge blocks (5); A circular cavity (8) is provided inside the fixing plate (1), and a locking assembly (7) for locking the arc-shaped contact plate (6) is provided inside the circular cavity (8).

2. The fixing structure of the light shielding sheet according to claim 1, wherein: The locking assembly (7) includes a rotating shaft (701) rotatably connected to the bottom end of the circular cavity (8), and the top end of the rotating shaft (701) passes through the outer top of the fixed plate (1) and is fixedly connected to a long strip locking block (702); the arc-shaped contact plate (6) is provided with a long strip opening (703) that cooperates with the long strip locking block (702).

3. The fixing structure of the light shielding sheet according to claim 2, wherein: The diameter of the elongated opening (703) is larger than the cross section of the elongated locking block (702).

4. The fixing structure of the light shielding sheet according to claim 3, wherein: A plurality of rotating shafts (701) are arranged at equal intervals along the circumferential direction of the through hole (3), and a gear (9) is sleeved on the rotating shaft (701); an annular strip (10) is slidably arranged on the inner circumference of the circular cavity (8), and teeth (11) meshing with the gear (9) are arranged at equal intervals on the inner side wall of the annular strip (10).

5. The fixing structure of the light shielding sheet according to claim 4, characterized in that: The upper and lower ends of the circular cavity (8) are both provided with an annular groove (12) in communication, and the upper and lower ends of the annular strip (10) are both provided with balls (13) adapted to the annular groove (12).

6. The fixing structure of the light shielding sheet according to claim 1, wherein: The fixing plate (1) is provided with a mounting hole (14), and the bottom of the fixing plate (1) is provided with an adhesive plate (15).

7. The fixing structure of the light shielding sheet according to claim 1, wherein: A hole (17) is provided at the bottom of the arc-shaped contact plate (6), and a clamping column (18) adapted to the hole (17) is provided at the top of the light-shielding plate body (16).

8. The fixing structure of the light shielding sheet according to claim 2, wherein: The bottom of the long strip locking block (702) and the top of the arc-shaped contact plate (6) are both provided with magnets (19) that cooperate with each other.

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