Hidden type top-bottom hinge

Abstract

The invention provides a hidden type top-bottom hinge. The hidden type top-bottom hinge comprises a first component, a second component and a connecting force arm, wherein the two ends of the connecting force arm are hinged to the first component and the second component correspondingly; the connecting force arm comprises a first force arm body and a second force arm body; the first component comprises a hinge box, an installation frame, a transmission shaft, a damping assembly and a spring assembly; the installation frame is arranged in the hinge box; the transmission shaft, the damping assembly and the spring assembly are all positioned on the installation frame; the first force arm body abuts against the damping assembly through the transmission shaft so as to be used for providing buffering force for closed rotation of the connecting force arm when the first component and the second component are closed; and the second force arm body abuts against the spring assembly through the transmission shaft so as to be used for providing restoring force for closed rotation of the connecting force arm when the included angle between the first component and the second component is within apreset range, and therefore the closing speed of a door leaf or a window is moderate and stable.

Description

technical field [0001] The invention relates to the technical field of hardware accessories, in particular to a hidden sky-earth hinge. Background technique [0002] A heaven-earth hinge is a mechanical device used to connect two solids and allow rotation between them. [0003] Sky and earth hinges are usually used in opening and closing structures such as doors and windows to ensure the stability of doors and windows opening and closing. However, because the existing sky and earth hinges do not have or cannot provide sufficient door or window closing force, there is a gap or rebound after the doors and windows are closed; Or, when the door is closed, the door is subject to the hinge pull or the push of the human hand, and it is easy to hit heavily on the door frame or window frame and other structures, making a loud noise and generating relatively loud noise, which affects people's use. It is easy to cause damage to the furniture, so further improvement is needed. Conten...

AI Technical Summary

Problems solved by technology

[0003] Sky and earth hinges are usually used in opening and closing structures such as doors and windows to ensure the stability of doors and windows opening and closing. However, because the existing sky and earth hinges do not have or cannot provide sufficient door or window closing force, there is a gap or rebound after the doors and windows are closed; Or, when the door is closed, the door is subject to the hinge pull or the push of the human hand, and it is easy to hit heavily on the door frame or window frame and other structures, making a loud noise and generating relatively loud noise, which affects people's use. It is easy to cause damage to the furniture, so further improvement is needed

Images