Improved key ring

Abstract

The invention discloses an improved key ring. The improved key ring comprises a C-shaped main part, wherein an anti-disengaging pin penetrates through one side of the C-shaped main part, a hanging part rod is arranged below the C-shaped main part, a nut pit and a shoulder are arranged on the two ends of the C-shaped main part respectively, the shoulder is provided with a spring fixing groove, a polygonal penetration hole and an L-shaped integrated movable part rotary motion grooved rail, an L-shaped integrated movable part is provided with an anti-slipping hole position and a rotary shaft, a spring clamping groove is formed in the rotary shaft which stretches into the C-shaped main part through the polygonal penetration hole, the rotary shaft is sleeved with a rotating contracting spring and a hollow sleeve, the two ends of the rotating contracting spring are fixed in the spring clamping groove and the spring fixing groove respectively, the hollow sleeve makes contact with and is connected with a cross-shaped double-threaded screw, the two ends of the cross-shaped double-threaded screw are connected with the rotary shaft and the anti-disengaging nut respectively, and the anti-disengaging nut is matched with the nut pit. By the adoption of the improved key ring, a key can be mounted and dismounted conveniently, all the parts are connected tightly and not prone to disengagement, a finished product is closed after installation, the parts can not be detached easily manually, and the L-shaped integrated movable part can restore automatically to be closed.

Description

technical field [0001] The invention relates to a key suspension device, in particular to an improved 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 announces a key ring, which is improved in appearance and practicality 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. In add...

AI Technical Summary

Problems solved by technology

[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 announces a key ring, which is improved in appearance and practicality 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. In addition, 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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