Silencing primary-secondary hinge

Abstract

A silent mother and child hinge, including a child hinge, a mother hinge, a central shaft and a sealed bearing, the child hinge and the mother hinge are respectively connected to the center shaft through the child hinge sleeve and the mother hinge sleeve in rotation , the sealed bearing is installed on the center shaft at the upper and lower ends of the sub-hinge, and a sealing ring is formed at the connection between the sealed bearing and the sub-hinge; the inner wall of the sub-hinge casing is compounded with a grease layer, and the grease The shuttle-shaped fastening sleeve made integrally with the middle shaft is tightly fitted; the female hinge is formed with a through groove that can be fitted with a sub-hinge. The invention overcomes the technical problems of the traditional hinge, the hinge is not firm, and the door frame is easy to deform. By adopting the letter hinge connection form, the hinge is lighter, the force is more uniform, the door frame is not easy to deform after long-term use, and the sealing and sound insulation effects Significantly improved.

Description

technical field [0001] The invention relates to a hinged device for a side-hung door, in particular to a silent mother-in-law hinge. Background technique [0002] Nowadays, heaven and earth hinges are often used for support and fastening between doors and door frames. Traditional hinges need to be installed at the door frame during installation. , and long-term use, the door frame is prone to deformation due to uneven force, which seriously affects normal use. Moreover, the traditional processing technology has insufficient lubrication effect on the hinge, which often leads to abnormal noise during use, which seriously affects the normal use of the hinge. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art, and provide a silent mother-in-law hinge with firm structure, durable structure, convenient installation and good lubricating effect. [0004] The purpose of the present invention is achieved throug...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, heaven and earth hinges are often used for support and fastening between doors and door frames. Traditional hinges need to be installed at the door frame during installation. , and long-term use makes the door frame easy to deform due to uneven force, which seriously affects normal use

Moreover, the traditional processing technology has insufficient lubrication effect on the hinge, which often leads to abnormal noise during use, which seriously affects the normal use of the hinge.

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