Filter frame

Abstract

The utility model discloses a filter frame which comprises a first frame body and a second frame body which are connected in a magnetic attraction mode, the first frame body is provided with a first containing groove and a notch communicated with the first containing groove, the outer surface of the second frame body is provided with a limiting block, one side of the second frame body is arranged in the first containing groove, and the limiting block is matched with the notch. After the limiting block enters the first containing groove from the notch, the first frame body and the second frame body rotate relatively, so that the limiting block and the notch are staggered, the limiting block cannot be separated from the interior of the first containing groove, and even if the first frame body and the second frame body are not firmly clamped or magnetically connected, the first frame body and the second frame body can still be connected; the problem of falling off is solved, meanwhile, the normal use effect of the filter is guaranteed, and the problem that the lens falls off and is damaged is also avoided.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment technology, specifically to a filter frame. Background Technology

[0002] In fields such as photography and optical imaging, multiple filters with different functions are often used together to achieve specific optical effects. In such cases, connecting structures such as adapter rings, retaining rings, and rotating rings are needed to assemble and fix the filters.

[0003] Currently, the conventional connection methods between the above-mentioned connection structures are mainly direct snap-fit ​​or magnetic connection. However, both of these connection methods have obvious drawbacks: after being subjected to external impact, vibration, or frequent disassembly and assembly, the snap-fit ​​structure is prone to wear and loosening at the snap-fit ​​joint, resulting in a decrease in connection stability; although magnetic connection is convenient to disassemble and assemble, it is prone to detachment due to the influence of magnetic field strength, external interference, and magnetic attenuation after long-term use.

[0004] The ease with which either connection method detaches not only affects the normal use of the filter, but may also cause the lens to fall off and be damaged during use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a filter frame.

[0006] The present invention discloses a filter frame, comprising: a first frame and a second frame connected by magnetic attraction, the first frame having a first receiving groove and a notch communicating with the first receiving groove, the outer surface of the second frame having a limiting block, one side of the second frame being disposed in the first receiving groove, and the limiting block being adapted to the notch.

[0007] The limiting block enters the first receiving groove through the notch, and the limiting block is misaligned with the notch by the relative rotation of the first frame and the second frame.

[0008] According to one embodiment of the present invention, the first receiving groove has a receiving area and a limiting area that communicate with each other, one side of the second frame is located in the receiving area, and the limiting block is located in the limiting area.

[0009] According to one embodiment of the present invention, there are multiple notches and multiple limiting blocks.

[0010] According to one embodiment of the present invention, it further includes a first magnet and a second magnet, the first magnet being disposed in the first frame and the second magnet being disposed in the second frame, the first magnet and the second magnet being attracted to each other.

[0011] According to one embodiment of the present invention, the first frame has a second receiving groove, and the first magnet is disposed in the second receiving groove.

[0012] According to one embodiment of the present invention, there are multiple first magnets, and the multiple first magnets are distributed in the second receiving groove.

[0013] According to one embodiment of the present invention, the second frame has a third receiving groove, and the second magnet is disposed in the third receiving groove.

[0014] According to one embodiment of the present invention, there are multiple second magnets, and the multiple second magnets are distributed in the third receiving groove.

[0015] According to one embodiment of the present invention, it further includes a ring located between the first magnet and the second magnet, and the first magnet and the second magnet are connected by the ring.

[0016] According to one embodiment of the present invention, it also includes a locking solid, which is disposed in the second frame and is used to prevent the ring from falling.

[0017] The beneficial effect of this utility model is that when the limiting block enters the first receiving groove through the notch, the first frame and the second frame are rotated relative to each other, so that the limiting block and the notch are misaligned. In this way, the limiting block cannot be detached from the first receiving groove. Even if the snap-fit ​​or magnetic connection between the first frame and the second frame is not firm, the first frame and the second frame can still maintain the connection, which solves the problem of detachment. At the same time, it ensures the normal use effect of the filter and avoids the problem of the lens falling off and being damaged. Attached Figure Description

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the filter frame;

[0019] Figure 2 This is a cross-sectional view of the filter frame;

[0020] Figure 3 for Figure 2 Enlarged view of point A;

[0021] Figure 4 This is a breakdown diagram of the filter frame;

[0022] Figure 5 for Figure 4 Enlarged view of point B;

[0023] Figure 6 for Figure 4 Enlarged view of point C;

[0024] Figure 7 This is a sectional view of the first frame.

[0025] In the picture:

[0026] 1. First frame; 11. First receiving groove; 111. Receiving area; 112. Limiting area; 12. Notch; 13. Second receiving groove; 2. Second frame; 21. Limiting block; 22. Third receiving groove; 23. Fourth receiving groove; 3. First magnet; 4. Second magnet; 5. Ring; 6. Locking solid. Detailed Implementation

[0027] To more clearly present the technical problem to be solved, the technical solution adopted, and the technical effect achieved by this application, the technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] In describing this application, unless explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or a connection forming a whole; they can be mechanical or electrical; they can be direct or indirect through an intermediate medium; or they can refer to two components that are internally connected or have an interactive relationship. Those skilled in the art can understand the actual meaning of these terms in this application based on the specific circumstances.

[0029] In this application, unless explicitly specified and limited, the term "above" or "below" the second feature can include both situations where the first and second features are in direct contact and situations where they are in contact through other features between them. Furthermore, the terms "above," "over," and "on top" of the second feature include situations where the first feature is directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature. Similarly, the terms "below," "below," and "under" the second feature include situations where the first feature is directly below or diagonally below the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature.

[0030] In describing this embodiment, the terms "up," "down," "left," and "right," etc., refer to the orientations or positional relationships shown in the accompanying drawings. This is done solely for ease of description and simplification of operation, and does not indicate or imply that the mentioned devices or components must have a specific orientation, or must be constructed and operated according to a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0031] Reference Figures 1-7 As shown, Figure 1 A schematic diagram of the three-dimensional structure of the filter frame; Figure 2 This is a cross-sectional view of the filter frame; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a breakdown diagram of the filter frame; Figure 5 for Figure 4 Enlarged view of point B; Figure 6 for Figure 4 Enlarged view of point C; Figure 7 This is a sectional view of the first frame 1.

[0032] The filter frame includes a first frame 1 and a second frame 2, which are connected, specifically, the first frame 1 and the second frame 2 are connected by magnetic attraction. In this embodiment, the filter frame also includes a first magnet 3 and a second magnet 4. The first magnet 3 is disposed in the first frame 1, and the second magnet 4 is disposed in the second frame 2. The first magnet 3 and the second magnet 4 attract each other, and the first frame 1 and the second frame 2 are magnetically connected through the attraction of the first magnet 3 and the second magnet 4.

[0033] The first frame 1 is provided with a first receiving groove 11, and one side of the second frame 2 is located in the second receiving groove 13. The first receiving groove 11 can be divided into a receiving area 111 and a limiting area 112. The receiving area 111 and the limiting area 112 are connected. The receiving area 111 is exposed to the outside, while the limiting area 112 is not exposed to the outside.

[0034] The second frame 2 is provided with a limiting block 21, which is located on the outer surface of the second frame 2 and protrudes from the outer surface of the second frame 2. Correspondingly, the first frame 1 is provided with a notch 12, which communicates with the limiting area 112. At the same time, the limiting block 21 is adapted to the notch 12, and the limiting block 21 can pass through the notch 12 and enter the limiting area 112. In use, when one side of the second frame 2 is placed into the first receiving groove 11, the limiting block 21 is simultaneously placed into the limiting area 112 through the notch 12. Then, under the action of external force, the first frame 1 and the second frame 2 rotate relative to each other, causing the limiting block 21 to be misaligned with the notch 12. Combined with the fact that the limiting area 112 is not connected to the outside, at this time, the limiting block 21 cannot be disengaged from the limiting area 112, thereby preventing the second frame 2 from separating from the first frame 1, and ultimately strengthening the stability of the connection between the first frame 1 and the second frame 2. To further enhance the stability of the connection between the first frame 1 and the second frame 2, the first frame 1 has multiple notches 12, which are spaced apart. The number of notches 12 can be two, three, or more, and is not limited here. The second frame 2 also has multiple limiting blocks 21, which are spaced apart. The number of limiting blocks 21 can be two, three, or more, and is not limited here.

[0035] Preferably, the first frame 1 has a second receiving groove 13, and the first magnet 3 is disposed in the second receiving groove 13. Specifically, the opening orientation of the second receiving groove 13 is opposite to the opening orientation of the first receiving groove 11. The second frame 2 has a third receiving groove 22, and the second magnet 4 is disposed in the third receiving groove 22. Specifically, the opening orientation of the third receiving groove 22 is the same as the opening orientation of the second receiving groove 13. Further, the filter frame also includes a ring 5, which is disposed in the second frame 2 and located between the first magnet 3 and the second magnet 4. In this embodiment, the first magnet 3 and the second magnet 4 are not in direct contact; they are connected through the ring 5. That is, the first magnet 3 is magnetically connected to the ring 5, and the second magnet 4 is also magnetically connected to the ring 5.

[0036] In this embodiment, there are multiple first magnets 3, which are spaced apart within the second receiving groove 13; there are multiple second magnets 4, which are spaced apart within the third receiving groove 22. Both the first magnets 3 and the second magnets 4 are magnets, the ring 5 is made of a magnetic metal material, and the first frame 1 and the second frame 2 are made of non-magnetic metal or alloy materials.

[0037] Preferably, the filter frame also includes a retaining solid 6, which is secured in the fourth receiving groove 23 of the second frame 2. The retaining solid 6 can prevent the ring 5 from falling off the second frame 2. Specifically, both the retaining solid 6 and the ring 5 are ring-shaped and are distributed at the same center. The inner radius of the retaining solid 6 is smaller than the inner radius of the ring 5. As for the ring 5, one side is attracted by the second magnet 4, and the other side is blocked by the retaining solid 6.

[0038] In summary, when the limiting block 21 enters the first receiving groove 11 through the notch 12, the first frame 1 and the second frame 2 are rotated relative to each other, causing the limiting block 21 to be misaligned with the notch 12. In this way, the limiting block 21 cannot detach from the first receiving groove 11. Even if the snap-fit ​​or magnetic connection between the first frame 1 and the second frame 2 is not firm, the first frame 1 and the second frame can still maintain the connection, solving the problem of detachment. At the same time, it ensures the normal use effect of the filter and avoids the problem of the lens falling off and being damaged.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A filter frame, characterized in that, include: The first frame (1) and the second frame (2) are magnetically connected. The first frame (1) has a first receiving groove (11) and a notch (12) communicating with the first receiving groove (11). The outer surface of the second frame (2) is provided with a limiting block (21). One side of the second frame (2) is located in the first receiving groove (11). The limiting block (21) is adapted to the notch (12). The limiting block (21) enters the first receiving groove (11) through the notch (12). The limiting block (21) and the notch (12) are misaligned by the relative rotation of the first frame (1) and the second frame (2).

2. The filter frame of claim 1, wherein, The first receiving groove (11) has a communicating receiving area (111) and a limiting area (112), one side of the second frame (2) is located in the receiving area (111), and the limiting block (21) is located in the limiting area (112).

3. The filter frame according to claim 2, characterized in that, There are multiple notches (12) and multiple limit blocks (21).

4. The filter frame according to claim 1, characterized in that, It also includes a first magnet (3) and a second magnet (4), the first magnet (3) is disposed in the first frame (1), and the second magnet (4) is disposed in the second frame (2), and the first magnet (3) and the second magnet (4) attract each other.

5. The filter frame according to claim 4, characterized in that, The first frame (1) has a second receiving groove (13), and the first magnet (3) is disposed in the second receiving groove (13).

6. The filter frame according to claim 5, characterized in that, There are multiple first magnets (3), and all of the multiple first magnets (3) are distributed in the second receiving tank (13).

7. The filter frame according to claim 4, characterized in that, The second frame (2) has a third receiving groove (22), and the second magnet (4) is disposed in the third receiving groove (22).

8. The filter frame according to claim 7, characterized in that, There are multiple second magnets (4), and all of the multiple second magnets (4) are distributed in the third receiving tank (22).

9. The filter frame according to any one of claims 4-8, characterized in that, It also includes a ring (5) located between the first magnet (3) and the second magnet (4), with the first magnet (3) and the second magnet (4) connected by the ring (5).

10. The filter frame according to claim 9, characterized in that, It also includes a carding solid (6), which is set in the second frame (2) and is used to prevent the ring (5) from falling.

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