A self-closing key ring

Abstract

The invention discloses an automatic closing key chain ring, which comprises a C-shaped main part and an L-shaped integral movable part. The two ends of the C-shaped main part are respectively provided with a nut sink and a stall, and a spring is provided in the stall. The fixed groove, the rotating movement groove track of the movable part and the movement limit groove of the movable part, the polygonal through hole is set in the center of the gear, the lower part of the C-shaped main part is connected to the key pendant rod; the lower part of the inner side of the L-shaped integrated movable part is provided with a locking Concave hole, the upper part of the inner side is provided with a rotating shaft, and a fixed card position is provided on the rotating shaft. The rotating shaft is connected with a cross-shaped double-headed screw, and the rotating shaft and the cross-shaped double-ended screw are sleeved with a rotary contraction spring and a hollow card slot. The hollow card slot cover is connected with the I-shaped card slot nut through a cross-shaped double-headed screw, and one end of the I-shaped card slot nut is provided with an anti-off shaft sleeve, and the anti-off shaft sleeve is fixedly installed on the C-shaped main part. The invention is convenient for assembly, the screw fit is tighter, has the automatic closing function of the rotation limit, and is more convenient for the installation and use of the key.

Description

technical field [0001] The invention relates to a key suspension device, in particular to an automatically closed key ring. Background technique [0002] At present, the types of key rings on the market are relatively single, generally ring-shaped, not aesthetically pleasing, easy to rust, and inconvenient for loading and unloading keys; based on the above reasons, people began to study beautiful and easy-to-install key rings to meet market demand. For example, the patent number is: 201320628596.0, and the patent name is: the patent of the key ring, which has announced a key ring, which is improved in appearance and inventiveness compared with the previous technology, and is convenient for loading and unloading keys, but there are many parts. 1. The connection between the various parts is not tight enough, easy to fall off, the fixing effect is poor, and the parts are easy to be disassembled by hand. Children are in danger of accidentally swallowing scattered small parts whe...

AI Technical Summary

Problems solved by technology

[0002] At present, the types of key chain rings on the market are relatively single, generally ring-shaped, not aesthetically pleasing, easy to rust, and inconvenient for loading and unloading keys; based on the above reasons, people began to study beautiful and easy-to-install key rings to meet market demand. For example, the patent number is: 201320628596.0, and the patent name is: the patent of the key ring, which announces a key ring, which is improved in appearance and inventiveness compared with the previous technology, and is convenient for loading and unloading keys, but there are many parts. 1. The connection between the various parts is not tight enough, easy to fall off, the fixing effect is poor, and the parts are easy to be disassembled by hand. Children are in danger of accidentally swallowing scattered small parts when playing, and the spring in the prior art is a contraction spring, which needs to be manually reset. Inconvenient to use, needs improvement

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