Flange locking type lens adapter ring device with anti-falling structure

Abstract

The utility model discloses a flange locking type lens adapter ring device with an anti-falling structure. The flange locking type lens adapter ring device comprises a machine body bayonet, an adapter ring main body, an anti-falling pin, a lens locking ring and a lens seat, the camera body bayonet is connected with the adapter ring main body through a screw, the anti-falling pin is connected with the adapter ring main body through a screw, the lens locking ring is connected with the adapter ring main body through a screw, and the lens seat is connected with the adapter ring main body through a screw. According to the utility model, the threaded connection structures on the adapter ring main body and the lens locking ring are matched with the anti-drop pin, so that the problems that the optical axes of the lens, the adapter ring and a photosensitive machine body are inconsistent after the lens is mounted on the adapter ring, the lens is loosened and swings after the adapter ring is used for a long time, the lens is difficult to mount and dismount, the adapter ring is complex in structure and the like are solved.

Description

Technical Field

[0001] The utility model relates to a lens adapter ring device with a flange locking anti-slip structure. Background Art

[0002] In cameras, mobile phones, camcorders, and industrial and IoT surveillance photography and videography, lens adapters are required to connect cameras with different mounts and lenses. Currently, adapters designed for claw-type lenses on the market all utilize a spring plate and lens positioning pin. This spring plate is susceptible to factors such as material quality, processing, adapter age, and wear on the lens claws. This can lead to misalignment between the lens and camera body's optical axis, unstable lens installation, and other issues, impacting image quality. Furthermore, the lens positioning pin and spring plate structure are extremely inconvenient when installing and removing the lens, and can easily damage the lens structure during installation and use. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a lens adapter ring device with a flange locking anti-slip structure which is easy and reliable to use, simple to operate, and can solve the problems of troublesome installation and disassembly of previous lens adapter rings, and complex spring sheet structure and poor stability. It makes the installation and disassembly of the lens convenient, low-risk, and good stability during use, thereby improving the final imaging quality. It has practicality and wide application.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A flange-locking, anti-slip structure lens adapter ring device comprises five main parts: a camera body mount, an adapter ring body, an anti-slip pin, a lens locking ring, and a lens mount. The camera body mount is connected to the adapter ring body by screws, the anti-slip pin is connected to the adapter ring body by screws, the lens locking ring is connected to the adapter ring body by threads, and the lens mount is connected to the adapter ring body by screws. The present invention, through the cooperation of the threaded connection structure on the adapter ring body and the lens locking ring with the anti-slip pin, solves the problems of misalignment of the optical axes of the lens, adapter ring, and photosensitive camera body after the lens is installed on the adapter ring, loosening and shaking of the lens after the adapter ring is used for a long time, difficulty in lens installation and removal, and complex adapter ring structure.

[0006] The utility model features interlocking internal and external threads on the adapter ring body and the lens locking ring. The lens locking ring and adapter ring body are threadedly connected. Rotating the lens locking ring lowers the projection on the lens locking ring, ultimately pressing against the claw on the lens mount. Installation requires only rotating the lens locking ring, making operation simple and convenient. Once the lens is installed, the lens claws fit tightly with the projection on the locking ring, eliminating any swinging play.

[0007] An anti-drop pin is installed on the adapter ring body. During disassembly, after rotating the lens locking ring to a certain position, you need to push down the anti-drop pin and continue to rotate the lens locking ring to the bottom. Only then can the lens be removed. This design can prevent the risk of the lens falling due to accidentally touching the lens locking ring during use, thereby improving usage safety.

[0008] The adapter ring is designed with an internal thread structure, which can be used to install optical lens sets with various functions, such as focus reducer and neutral density filter, ND filter, etc.

[0009] The beneficial effects of the utility model are: easy and reliable to use, simple to operate, and can solve the problems of troublesome installation and disassembly of previous lens adapter rings, and complex spring sheet structure and poor stability, so that the installation and disassembly of the lens is convenient, the risk is low, the stability is good during use, and the final imaging quality is improved. It is a flange locking anti-detachment structure lens adapter ring device with practicality and wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the current technical description, but this does not limit the scope of protection of the present invention.

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the adapter ring main body of the utility model;

[0013] Figure 3 This is a front view of the lens locking ring of the present invention;

[0014] Figure 4 This is a schematic diagram of the back side of the lens locking ring of the utility model

[0015] Figure 5 This is a schematic diagram of the lens mount of the present utility model;

[0016] The names of the various parts are as follows: 1 is the camera body mount; 2 is the adapter ring body; 3 is the anti-drop pin; 4 is the lens locking ring; 5 is the lens mount; 6 is the external thread; 7 is the internal thread; 8 is the internal thread; 9 is the limit support boss; 10 is the fan-shaped hole; 11 is the limit groove; 12 is the locking ring boss; 13 is the lens mount boss; 14 is the optical lens assembly; DETAILED DESCRIPTION

[0017] See Figures 1 to 4 The lens adapter ring device shown is a flange-locking anti-slip structure, comprising a camera body bayonet, an adapter ring body, an anti-slip pin, a lens locking ring, and a lens mount.

[0018] The body mount 1 is connected to the adapter ring body 2 by screws, the anti-drop pin 3 is connected to the adapter ring body 2 by screws, the lens locking ring 4 is connected to the adapter ring body 2 by external threads 6 and internal threads 7, the lens mount 5 is connected to the adapter ring body by screws, and the optical lens group 14 is connected to the adapter ring body by threads. The adapter ring body 5 is provided with an external thread 6 for installing the lens locking ring, an internal thread 8 for installing the optical lens group, and a limiting support boss 9. The lens locking ring 4 is provided with a fan-shaped hole 10, a limiting groove 11, an inwardly protruding boss 12 and an internal thread 7. The lens mount 5 is provided with an inwardly protruding boss 13, and the number of bosses 12 and 13 is the same.

[0019] When using the device of the present invention to install a lens, first push down the anti-drop pin, then rotate the lens locking ring in the loosening direction. When the locking ring boss is restricted by the lens mount boss, the rotation stops. Next, align the installation mark on the lens with the installation mark on the adapter ring, and then rotate the lens locking ring in the locking direction. At this time, the boss on the lens locking ring will continue to lower along the axial direction as the locking ring rotates, and finally press the claw on the lens. During the disassembly process, the lens locking ring is rotated. Due to the cooperation of the anti-drop pin and the limit groove, the lens locking ring cannot be rotated further. At this time, the claw on the lens interface is still restricted by the locking ring boss and will not fall off the adapter ring. It is necessary to push down the anti-drop pin and continue to rotate the lens locking ring until the locking ring boss is restricted by the lens mount boss and stops rotating. At this time, the lens can be disassembled.

[0020] The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this. Any changes or substitutions that do not require creative work should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A flange-locking anti-slip structure lens adapter ring device, characterized by: It includes five main parts: body mount, adapter ring body, anti-slip pin, lens locking ring, and lens mount. The body mount and adapter ring body are connected with screws, the anti-slip pin and adapter ring body are connected with screws, the lens locking ring and adapter ring body are connected with threads, and the lens mount and adapter ring body are connected with screws.

2. The lens adapter ring device with flange locking anti-slip structure according to claim 1, characterized in that: The adapter ring body and the lens locking ring are provided with internal and external threads that cooperate with each other, and the adapter ring body and the lens locking ring are provided with the same number of bosses.

3. The lens adapter ring device with flange locking anti-slip structure according to claim 1, characterized in that: An anti-drop pin is installed on the adapter ring body, and a limiting groove is provided on the lens locking ring.

4. The lens adapter ring device with flange locking anti-slip structure according to claim 1, characterized in that: The adapter ring body is designed with a thread structure for installing an optical lens assembly.

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