Automatic door closing hinge with separate tension and speed adjustments

Abstract

An automatic door closing hinge with separate tension and speed adjustments comprises a damping branch and a spring branch. The damping branch comprises a damping device, a first upper hinge, a first lower hinge, a first upper end cap, a first lower end cap and a first plane bearing, and the first plane bearing is located between the first upper hinge and the first lower hinge; the spring branch comprises a spindle, a second upper hinge, a second lower hinge, a second upper end cap, a second lower end cap, a clutch sleeve, a torsional spring, a positioning pin, an adjusting pin and a second plane bearing, and the second plane bearing is located between the second upper hinge and the second lower hinge; and the spindle is connected with the second upper hinge via the clutch sleeve, and the torsional spring is sleeved on the outside of the spindle. The automatic door closing hinge has the advantages that the automatic door closing hinge is stable and adjustable; a door can be stopped by the aid of the automatic door closing hinge after the door opens to a certain degree, and a door stopping angle is adjustable; energy storage of the spring and thermal transmission generated by friction are reduced, temperature change of a hydraulic damping mechanism is decreased, and stability of the automatic door closing hinge is improved.

Description

technical field [0001] The invention relates to a self-closing door combined hinge with separated tension and speed adjustment. Background technique [0002] Modern automatic door-closer hinges began with a hydraulic door-closer patent registered by Americans in the early 20th century. The core technology of the door opener is the hydraulic damping mechanism inside. At present, some advanced countries such as Germany, Japan, and South Korea have successively developed automatic door closers that integrate the functions of the door closer and the door closer, replacing the ordinary door closer + hinge currently used. Moreover, Japan has formulated relative national technical standards for hinge-type door closers, but my country's technology in this area is relatively backward. In order to develop high-grade door closers, scholars at home and abroad have carried out research on the related structures and theories of door closers, and achieved certain results, among which uti...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the current mainstream door closers, which are hydraulic door closers installed on the door head. This type of hydraulic door closers has complex structure, high damage rate, and is not suitable for the problem of no door lintel and hidden door. An automatic door-closing combined hinge that can realize the functions of door stop, automatic door closing, and buffer speed regulation, and can also ensure the stability and adjustability of the control. The tension and speed adjustment are separated.

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