Rapid locking device and adapter ring assembly having same

Abstract

The present invention discloses a rapid locking device and an adapter ring assembly having the same. The rapid locking device comprises a rotating ring, a moving ring and an elastic locking buckle, the rotating ring and the moving ring are connected via a connecting shaft, and the elastic locking buckle is installed on the moving ring via a fulcrum bar and comprises a driving lever and a fastening buckle vertical with the driving lever. The fastening grooves matching the fastening buckle are arranged at the corresponding positions of the rotating ring and the moving ring, and a torsional spring sleeves the fulcrum bar. The adapter ring assembly having the above rapid locking device also comprises a fixed ring in snap joint with the rotating ring, and the fixed ring and the rotating ring can rotate relatively around the axes in which the centers of the fixed ring and the rotating ring are located. The rapid locking device is applied in the fields, such as the camera, etc., realizes the instant switching of a filter usage state and a disabled state. The actual measurement proves that the filter switching time can be finished within one second, thereby totally not influencing the precious snapshot moments of the photographers. The rapid locking device is universal with any camera, and has the advantages of being easy to process and convenient to use, being low in cost and high in structural strength, etc.

Description

technical field [0001] The invention relates to a quick locking device and an adapter ring assembly with the device. Background technique [0002] In photography, in order to obtain special effects, various filters for the front of the lens are often used, such as close-up lenses, polarizers, gradient filters, ND lenses, color temperature filters, soft focus lenses, star filters, etc. Most of these filters are round and threaded, and are threaded onto the lens when used. During use, the deactivation and use switching of the filter is relatively frequent, and because of the threaded connection, the disassembly and assembly are relatively slow, and it is possible to miss the fleeting picture. [0003] The authorized announcement number is [CN2112846U], and the utility model titled "camera color filter adapter ring" discloses a magnetic adapter ring. The structure reliability of the magnetic attraction type is low, and it is difficult to fix the heavy filter firmly. , it is e...

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Problems solved by technology

[0003] The authorized announcement number is [CN2112846U], and the utility model titled "camera color filter adapter ring" discloses a magnetic adapter ring. The structure reliability of the magnetic attraction type is low, and it is difficult to fix the heavy filter firmly. , it is easy to cause the risk of the filter falling off completely, and the above-mentioned solution is a structural form in which the filter is separated from the lens after the filter is disabled, it is difficult to meet the purpose of quick switching, and the filter needs to be kept in storage, and it is easy to miss many shooting opportunities. Seriously affect image capture; lens, filter, etc. are relatively precise optical instruments, and when installing the filter to the lens, it is necessary to ensure its precision and optical effect, and a stable and reliable fixing method is also very necessary

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