Ball and socket joint device for glass feet and pile heads

Abstract

The invention discloses a ball and socket joint device for glass feet and pile heads. The ball and socket joint device comprises pile heads, and a pair of glass feet which can be transferred between an opening position and a closed position; a first inclined plane which faces to the inner side of a pair of glasses in 45 degrees is arranged at the joint end of each pile head and the corresponding glass foot; a spherical socket arranged in the inner center part of the first inclined plane is connected to the inclined plane via a notch; a second inclined plane which faces to the outer side of the pair of glasses in 45 degrees is arranged at the joint end of each glass foot and the corresponding pile head; a spherical body which is capable of rotating in the spherical socket is arranged on the surface of the central part of the second inclined plane; and an integral structure is formed by the spherical body and the second inclined plane via a cylinder. Adjacent positions of the longitudinal front part and the longitudinal back part of the spherical socket are also provided with a front positioning groove and a back positioning groove, and a front arced shallow groove and a back arced shallow groove which extend downwards; and the grooves are respectively communicated with corresponding downward extended sections of groove openings. A positioning body which is clamped in the front rear positioning groove or the rear positioning groove is arranged at an adjacent position of the longitudinal back part of the spherical body. As no welding points and screw devices are needed, screw dropping off or loss is avoided; in addition, the ball and socket joint device is simple in structure, low in manufacturing cost, and long in service life, and is convenient for installation.

Description

technical field [0001] The invention relates to spectacles, in particular to a ball-and-socket joint device for eyeglass temples and eyelets that does not require welding points and screw devices. Background technique [0002] A traditional pair of spectacles generally includes components such as spectacle lenses, spectacle frames, nose pads, headpieces, and spectacle temples. Usually, the eyeglasses are fixedly connected to the spectacle frame by welding or screws, and the spectacle feet are pivotally connected to the eyeglasses using screws as a pivot, so that the eyeglass feet can rotate relative to the eyeglasses around the pivot, so as to realize the inward retraction or opening of the eyeglass feet. Open outwards. Figure 9 A commonly used glasses 100 are shown, which include spectacle lenses 101, spectacle frames 102, nose bridges 103, nose pads 104, eyeglasses 105, spectacle temples 106, and the like. The spectacle feet 106 are pivotally connected to the head 105 by...

AI Technical Summary

Problems solved by technology

[0003] The glasses in the prior art usually adopt a screw connection structure between the spectacle pins and the head. More importantly, due to the frequent swinging of the glasses feet, the screws will be loosened or even lost, resulting in damage to the glasses and making them unusable

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