Door hinge with cushioning function

Abstract

The invention relates to a door hinge with a buffer function, which is characterized in that it includes a casing, a first and a second rotating shaft, a "U"-shaped rotating shaft, a hinge cup, a linkage, a torsion spring, a connecting piece, a damper and a positioning shaft; the casing The inner wall is provided with a positioning block, and the positioning block forms a chute with the top surface of the inner wall of the housing. The linkage is provided with a push structure. The first axis of the rotating shaft is connected with the hinge cup; the right part of the connector is set in the housing through the second rotating shaft, the left part of the connecting part is connected with the hinge cup through the second shaft of the "U"-shaped rotating shaft, and the torsion spring is arranged on the second rotating shaft , the two ends of the torsion spring are set on the first shaft of the "U"-shaped rotating shaft and against the shell; the positioning shaft is set in the shell, the damper is equipped with a positioning slider and a stopper, and the positioning slider is set in the chute ; The push structure pushes the corresponding block, and a hook is arranged at the end of the piston rod of the damper, and the hook is hung on the positioning shaft. Its advantages are: compact structure, convenient assembly, stable buffer force, long service life and convenient maintenance.

Description

technical field [0001] The invention relates to a door hinge with buffer function. Background technique [0002] At present, a door hinge with a buffer function includes a housing, a first rotating shaft, a "U"-shaped rotating shaft, a hinge cup, a connector, a linkage, a pusher, and a damper. The piston rod of the damper is rotationally connected to the pusher, and the pusher It is connected with linkage again, and its structure is comparatively complicated. When in use, the pusher is pulled by the piston rod of the damper, which acts as a buffer when closing the door; the piston rod of the oil cylinder does not move on the axis, so the friction between the piston rod of the oil cylinder and the sealing ring of the oil cylinder is relatively large, and it is easy to use after a long time Oil leakage leads to door hinge failure, short service life, inconvenient maintenance, and poor door hinge precision. Contents of the invention [0003] The object of the present invent...

AI Technical Summary

Problems solved by technology

[0002] At present, a door hinge with a buffer function includes a housing, a first rotating shaft, a "U"-shaped rotating shaft, a hinge cup, a connector, a linkage, a pusher, and a damper. The piston rod of the damper is rotationally connected to the pusher, and the pusher It is also connected with linkage, and its structure is more complicated

When in use, the pusher is pulled by the piston rod of the damper, which acts as a buffer when closing the door; the piston rod of the oil cylinder does not move on the axis, so the friction between the piston rod of the oil cylinder and the sealing ring of the oil cylinder is relatively large, and it is easy to use after a long time Oil leakage leads to door hinge failure, short service life, inconvenient maintenance, poor door hinge precision

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