Lens pressing ring convenient to align

Abstract

The utility model discloses a lens pressing ring convenient to align, which belongs to the technical field of lens production and comprises a lens barrel and a mounting ring, internal threads are arranged on the lens barrel, and a plurality of limiting grooves are arranged on the lens barrel; an external thread is formed in the mounting ring, and a plurality of clamping grooves are formed in the mounting ring; an abutting block is fixedly arranged on the mounting ring, a placement groove is formed in the abutting block, a receding groove is formed in the mounting ring, a limiting ring is rotationally arranged in the receding groove, a plurality of limiting blocks corresponding to the limiting groove are fixedly arranged on the limiting ring; when the external threads are in threaded connection with the internal threads, the multiple limiting blocks are placed in the limiting grooves, and the positioning device has the advantage of being convenient to align.

Description

Technical Field

[0001] The utility model relates to the technical field of lens production, in particular to a lens pressing ring which is convenient for alignment. Background Art

[0002] A lens clamp is a connection method used to secure a lens within a frame. Its primary function is to secure the lens tightly within the frame, ensuring optical stability and image quality. Depending on the application requirements, the clamp can be threaded externally or internally.

[0003] An elastic washer is often added between the lens and the pressure ring to distribute force more evenly, especially in applications with larger diameters and thinner lenses. This design can also adapt to temperature fluctuations. Furthermore, the pressure ring is usually made of plastic, which is very flexible, so you can apply less force during disassembly without worrying about damaging it.

[0004] However, during the assembly process, due to the small thickness and diameter ratio of the pressure ring and the elastic washer installed between the pressure ring and the lens, it is difficult to align the external thread of the pressure ring with the internal thread of the lens barrel, resulting in a defect that makes the assembly process more difficult.

[0005] Based on this, the present invention designs a lens pressing ring that is convenient for alignment to solve the above problem. Utility Model Content

[0006] The purpose of the utility model is to provide a lens pressing ring that is convenient for alignment, so as to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a lens barrel and a mounting ring, the lens barrel is provided with an internal thread, the lens barrel is provided with a limiting groove, and there are multiple limiting grooves; the mounting ring is provided with an external thread, the mounting ring is provided with a clamping groove, and there are multiple clamping grooves; a tightening block is fixedly provided on the mounting ring, a placement groove is provided on the tightening block, a clearance groove is provided on the mounting ring, a limiting ring is rotatably provided in the clearance groove, a limiting block corresponding to the limiting groove is fixedly provided on the limiting ring, and there are multiple limiting blocks; when the external thread is threadedly connected to the internal thread, multiple limiting blocks are placed in the limiting groove.

[0008] By adopting the above technical solution, during installation, the limit block on the limit ring rotatably arranged on the mounting ring is placed in the limit groove on the lens barrel, so that when the external thread approaches the internal thread, the lens barrel and the mounting ring remain coaxial, making it convenient to screw the mounting ring into the lens barrel.

[0009] Preferably, a guide block is fixedly provided on the limit block.

[0010] By adopting the above technical solution, the guide block enables the mounting ring and the lens barrel to remain coaxial during assembly when the limiting block is placed in the limiting groove.

[0011] To sum up, the present application has the following beneficial technical effects: when the mounting ring is installed on the lens barrel, the limit block on the limit ring rotatably arranged on the mounting ring is placed in the limit groove on the lens barrel, so that when the external thread approaches the internal thread, the lens barrel and the mounting ring remain coaxial, which makes it convenient to screw the mounting ring into the lens barrel, and has the advantage of easy alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of lens installation in this embodiment;

[0014] Figure 2 This is a cross-sectional view of the installation of the elastic washer of this embodiment;

[0015] Figure 3 This is a cross-sectional view of the lens barrel structure of this embodiment;

[0016] Figure 4 For this embodiment Figure 3 A magnified view of the structure in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Lens barrel; 2. Mounting ring; 3. Internal thread; 4. Limiting groove; 5. External thread; 6. Snap-in groove; 7. Tightening block; 8. Placement groove; 9. Limiting ring; 10. Limiting block; 11. Guide block; 12. Lens; 13. Elastic washer. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The following is combined with Figure 1 —4 provides further details of this application.

[0021] A lens pressing ring for facilitating alignment comprises a lens barrel 1 and a mounting ring 2.

[0022] An internal thread 3 is provided on the lens barrel 1 , and three limiting grooves 4 are provided on the lens barrel 1 .

[0023] The mounting ring 2 is provided with an external thread 5 and three clamping grooves 6 ; a tightening block 7 is fixedly provided on the mounting ring 2 and a placement groove 8 is provided on the tightening block 7 .

[0024] A clearance groove is provided on the mounting ring 2, in which a limit ring 9 is rotatably arranged. A limit block 10 corresponding to the limit groove 4 is fixedly provided on the limit ring 9, and a guide block 11 is fixedly provided on the limit block 10. There are three limit blocks 10.

[0025] When the external thread 5 is threadedly connected to the internal thread 3 , a plurality of limiting blocks 10 are placed in the limiting groove 4 .

[0026] The implementation principle of this embodiment is as follows: during installation, the lens 12 is placed in the lens barrel 1, and the elastic gasket 13 is placed in the placement groove 8; then the three limit blocks 10 are respectively aligned with the three limit grooves 4, and at the same time, the mounting ring 2 is brought close to the lens barrel 1, and the limit block 10 is placed in the limit groove 4 through the guidance of the guide block 11 on the limit block 10; while the mounting ring 2 continues to approach the lens barrel 1, the clamping tool is used to clamp the clamping groove 6 and rotate the mounting ring 2, so that the external thread 5 is threadedly connected to the internal thread 3; the rotation is continued until the mounting ring 2 presses the elastic gasket 13 against the lens 12, and the installation of the mounting ring 2 is completed.

[0027] When the mounting ring 2 is mounted on the lens barrel 1, the limiting block 10 on the limiting ring 9 rotatably arranged on the mounting ring 2 is placed in the limiting groove 4 on the lens barrel 1, so that when the external thread 5 approaches the internal thread 3, the lens barrel 1 and the mounting ring 2 remain coaxial, making it convenient to screw the mounting ring 2 into the lens barrel 1, which has the advantage of easy alignment.

[0028] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lens pressing ring for facilitating alignment, comprising a lens barrel (1) and a mounting ring (2), characterized in that: The lens barrel (1) is provided with an internal thread (3), and a limiting groove (4) is provided on the lens barrel (1), and a plurality of limiting grooves (4) are provided; the mounting ring (2) is provided with an external thread (5), and a clamping groove (6) is provided on the mounting ring (2), and a plurality of clamping grooves (6) are provided; a pressing block (7) is fixedly provided on the mounting ring (2), and a placement groove (8) is provided on the pressing block (7); a clearance groove is provided on the mounting ring (2), and a limiting ring (9) is rotatably provided in the clearance groove, and a limiting block (10) corresponding to the limiting groove (4) is fixedly provided on the limiting ring (9), and a plurality of limiting blocks (10) are provided; when the external thread (5) is threadedly connected to the internal thread (3), the plurality of limiting blocks (10) are placed in the limiting groove (4).

2. The lens pressing ring for facilitating alignment according to claim 1, characterized in that: A guide block (11) is fixedly arranged on the limit block (10).

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