Optical filter with clamping structure

Abstract

The utility model discloses an optical filter with a clamping structure, which relates to the technical field of optical filter clamping structures and comprises clamping rings and a circular optical filter arranged between the clamping rings and clamped and fixed in the middle, the clamping rings are mounted on the inner side of a fixing cylinder in an abutting manner, and a threaded groove is formed in the bottom of the fixing cylinder in an upward winding manner. A fixing mechanism sleeves the outer side of the fixing cylinder, a positioning mechanism is mounted in the fixing cylinder on the inner side of the fixing mechanism, and a buffer mechanism is mounted in the positioning mechanism; the clamping ring and the fixing cylinder are matched with each other, the clamping ring and the fixing cylinder are conveniently connected and fixed through threads, the connection stability is improved, the connection and fixing function is further improved, the telescopic spring and the buffer fixing rod are matched with each other, the clamping ring is conveniently and tightly attached to the inner wall of the fixing cylinder through the buffer fixing rod, and the clamping ring is prevented from falling off. The installation stability of the optical filter is improved, the optical filter can be effectively prevented from shifting or falling off, and finally the problems that installation is not firm enough and disassembly or installation is inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of filter snap-fit ​​structure technology, and in particular to a filter with a snap-fit ​​structure. Background Technology

[0002] A filter is an optical element used to selectively transmit light of a specific wavelength. It is widely used in many fields such as photography, optical instruments, medical equipment, and communications. For example, in photography, different filters can be used to adjust the color and contrast of a photograph; in the field of communications, filters are used to filter and separate optical signals to ensure accurate transmission and reception of signals.

[0003] Traditional filter installation methods may have some problems, such as insufficient installation, which can easily lead to displacement or detachment during use, affecting the performance of the optical system; or the installation process is relatively complicated, requiring the use of glue, screws and other fixing devices, which not only increases installation costs and time, but also makes disassembly inconvenient when the filter needs to be replaced, and may even damage the filter or other related components; therefore, the above technical problems need to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter with a snap-fit ​​structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter with a snap-fit ​​structure, comprising a snap-fit ​​ring and a circular filter snap-fitted and fixed in the middle between the snap-fit ​​ring, the snap-fit ​​ring being abutted and installed inside a fixed cylinder, the bottom of the fixed cylinder having a threaded groove spirally opened upward, and a fixing mechanism being sleeved and installed on the outside of the fixed cylinder, a positioning mechanism being installed in the fixed cylinder inside the fixing mechanism, and a buffer mechanism being installed in the positioning mechanism.

[0006] Preferably, the fixing mechanism includes a fixing threaded ring installed on the outside of the fixing cylinder by a threaded connection, wherein rubber strips are fixedly fixed at equal intervals in the vertical direction on the outside of the fixing threaded ring, and a sliding groove is provided at the upper end of the fixing threaded ring.

[0007] Preferably, the lower end of the fixed cylinder is provided with a vertically upward moving groove around its perimeter, and the two sides of the moving groove are provided with vertically opposite limiting grooves.

[0008] Preferably, the positioning mechanism includes a fixed block that is slidably installed in the moving groove and the limiting groove, and an arc-shaped sliding block is fixedly connected to the upper end of the fixed block by a fixed cylinder. The arc-shaped sliding block is slidably installed in the sliding groove.

[0009] Preferably, the buffer mechanism includes a vertical hole on one side of the fixed block, a buffer positioning rod is installed in the vertical hole, one end of the buffer positioning rod abuts against one side of the snap ring, and a telescopic spring is sleeved on the outside of the buffer positioning rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the snap ring and the fixing cylinder cooperate with each other, which facilitates the connection and fixing of the two parts by threads, improving the stability of the connection and thus improving the function of connection and fixing. Furthermore, the telescopic spring and the buffer fixing rod cooperate with each other, which facilitates the snap ring to be tightly attached to the inner wall of the fixing cylinder by the buffer fixing rod, improving the stability of the filter installation and effectively preventing the filter from shifting or falling off. Ultimately, it solves the problems of insufficient installation and inconvenient disassembly or installation. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;

[0013] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from a bottom view;

[0014] Figure 3 This is a side view of the structure proposed in this utility model;

[0015] Figure 4 This is a schematic diagram of the bottom surface structure proposed in this utility model (view from below).

[0016] Figure 5 This is a side view sectional structural diagram of the present invention;

[0017] Figure 6 This is a partial three-dimensional structural schematic diagram of the present invention.

[0018] The numbers in the diagram are: 1. Fixed cylinder; 2. Circular filter; 3. Threaded groove; 4. Moving groove; 5. Fixed threaded ring; 6. Fixed block; 7. Sliding groove; 8. Limiting groove; 9. Buffer positioning rod; 10. Telescopic spring; 11. Snap ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example: See Figure 1-6 This utility model discloses a filter with a snap-fit ​​structure, comprising a snap-fit ​​ring 11 and a circular filter 2 snap-fitted and fixed in the middle between the snap-fit ​​ring 11. The snap-fit ​​ring 11 is abutted and installed inside the fixing cylinder 1. The bottom of the fixing cylinder 1 is spirally wound with an upward threaded groove 3, and a fixing mechanism is sleeved and installed on the outside of the fixing cylinder 1. A positioning mechanism is installed in the fixing cylinder 1 inside the fixing mechanism, and a buffer mechanism is installed in the positioning mechanism. The filter is easily snapped and fixed in the fixing cylinder 1 by the threads through the fixing cylinder 1 and the snap-fit ​​ring 11. The fixing mechanism includes a fixing threaded ring 5 installed on the outside of the fixing cylinder 1 by a threaded connection. An adhesive strip is fixedly fixed at equal intervals in the vertical direction on the outside of the fixing threaded ring 5, and a sliding groove 7 is opened at the upper end of the fixing threaded ring 5. The fixing threaded ring 5 and the adhesive strip are used to increase the friction when rotating the fixing threaded ring 5.

[0021] In this utility model, a moving groove 4 is vertically opened around the lower end of the fixed cylinder 1, and a limiting groove 8 is vertically opened on both sides of the moving groove 4. The moving groove 4 and the limiting groove 8 facilitate the fixing of the snap ring 11 in the fixed cylinder 1. The positioning mechanism includes a fixed block 6 slidably installed in the moving groove 4 and the limiting groove 8. An arc-shaped sliding block is fixedly connected to the upper end of the fixed block 6 extending downward from the fixed cylinder 1. The arc-shaped sliding block is slidably installed in the sliding groove 7. The sliding groove 7 and the arc-shaped sliding block facilitate the rotation of the fixed block 6 through the fixed threaded ring 5 to fit and fix the snap ring 11. The buffer mechanism includes a vertical hole opened on one side of the fixed block 6. A buffer positioning rod 9 is installed in the vertical hole. One end of the buffer positioning rod 9 abuts against one side of the snap ring 11, and a telescopic spring 10 is sleeved on the outside of the buffer positioning rod 9. The buffer positioning rod 9 and the telescopic spring 10 facilitate the fixing and buffering of the snap ring 11.

[0022] Working principle: When using this utility model, firstly, the fixing cylinder 1 is inverted on a horizontal table. Then, the snap ring 11 is placed in the fixing cylinder 1, and the circular filter 2 in the middle of the snap ring 11 facilitates observation. Then, the moving groove 4 and the limiting groove 8 facilitate the placement of the fixing block 6 inside. Then, the fixing threaded ring 5 is screwed onto the threaded groove 3 on the fixing cylinder 1, and the rubber strip facilitates the increase of friction during rotation, so that the fixing threaded ring 5 fixes the fixing block 6. Then, the buffer positioning rod 9 and the telescopic spring 10 facilitate the tight contact of the buffer positioning rod 9 with the outer wall of the snap ring 11. Then, the sliding groove 7 facilitates further stable fixation of the fixing block 6.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filter with a clamping structure, comprising a clamping ring (11) and a circular filter (2) fixed by clamping at the middle between the clamping ring (11), characterized in that: The clamping ring (11) is abutted and installed in the inner side of the fixed cylinder (1), the bottom of the fixed cylinder (1) is coiled and upwardly provided with a threaded groove (3), a fixed mechanism is sleeved and installed on the outer side of the fixed cylinder (1), a positioning mechanism is installed in the fixed cylinder (1) on the inner side of the fixed mechanism, and a buffer mechanism is installed in the positioning mechanism.

2. The filter with a snap structure according to claim 1, characterized in that: The fixed mechanism comprises a fixed threaded ring (5) which is installed on the outer side of the fixed cylinder (1) through threaded connection, vertical equidistant adhesive tapes are fixedly connected on the outer side of the fixed threaded ring (5), and a sliding groove (7) is formed in the upper end of the fixed threaded ring (5).

3. The filter with a snap structure according to claim 2, characterized in that: Vertical moving grooves (4) are formed around the lower end of the fixed cylinder (1) and upwardly, and limit grooves (8) are oppositely formed on both sides of the moving grooves (4).

4. The filter with a snap structure according to claim 3, characterized in that: The positioning mechanism comprises a fixed block (6) which is slidingly installed in the moving grooves (4) and the limit grooves (8), an arc-shaped sliding block is fixedly connected downwardly on the upper end of the fixed block (6) and extends out of the fixed cylinder (1), and the arc-shaped sliding block is slidingly installed in the sliding groove (7).

5. The filter with a snap structure according to claim 4, characterized in that: The buffer mechanism comprises a vertical hole which is formed on one side of the fixed block (6), a buffer positioning rod (9) is installed in the vertical hole, one end of the buffer positioning rod (9) is abutted on one side of the clamping ring (11), and an extension spring (10) is sleeved and installed on the outer side of the buffer positioning rod (9).

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