Universal hinge

Abstract

The invention discloses a universal hinge. The universal hinge comprises an upper hinge and a lower hinge, wherein the upper hinge comprises an upper embedding fixed seat and an upper rotating seat; the upper embedding fixed seat is embedded to the upper part of a side edge frame of a doorframe; the upper rotating seat is detachably connected to the upper embedding fixed seat; a sliding groove isformed between the upper embedding fixed seat and the side edge frame of the doorframe; the upper rotating seat is inserted in the sliding groove and can be in up-and-down sliding in the sliding groove; an upper pin shaft is arranged on the upper rotating seat; the lower hinge comprises a lower embedding fixed seat and a lower rotating seat; the lower embedding seat is embedded to the lower part of the side edge frame of the doorframe; the lower rotating seat is detachably connected to the lower embedding fixed seat; and a lower pin shaft is arranged on the lower rotating seat. Through the adoption of the universal hinge disclosed by the invention, disassembling and assembling of door leaves can be flexible and convenient, and the mounting of the door leaves can be stable and firm.

Description

technical field [0001] The invention belongs to the technical field of doors, and relates to a door hinge. Background technique [0002] The heaven and earth hinge is a kind of hinge, it is different from the traditional hinge, it can make the door open to 120 degrees, and the force of the hinge is reasonable, so it is widely used in the door. At present, the upper hinge and the lower hinge of the existing heaven and earth hinge are integrated, such as the heaven and earth hinge of the Chinese utility model patent with the application number of 2016208452764, the upper hinge and the lower hinge are respectively fixed on the door frame by screws , the door leaf can be rotated and connected with the upper hinge and the lower hinge. When installing this kind of heaven and earth hinge, only the door frame with the door leaf installed can be installed at the door, that is, the door leaf and the door frame can only be installed at the door at the same time, so the door frame and t...

AI Technical Summary

Problems solved by technology

At present, the upper hinge and the lower hinge of the existing heaven and earth hinge are integrated, such as the heaven and earth hinge of the Chinese utility model patent with the application number of 2016208452764, the upper hinge and the lower hinge are respectively fixed on the door frame by screws , the door leaf can be rotated and connected with the upper hinge and the lower hinge. When installing this kind of heaven and earth hinge, only the door frame with the door leaf installed can be installed at the door, that is, the door leaf and the door frame can only be installed at the door at the same time, so the door frame and the door leaf cannot be separated. Disassembly, disassembly is not flexible enough, maintenance is also very troublesome

In addition, the upper hinge and the lower hinge are directly fixed on the door frame by screws, and the connection between the upper hinge and the lower hinge and the door frame is not stable and firm enough, which causes the installation of the door leaf to be not firm and firm enough, and reduces the service life of the door. low door security

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