Door hinge with buffering function

Abstract

The invention relates to a door hinge with a buffering function. The door hinge is characterized by comprising a shell, a first rotary shaft, a second rotary shaft, a U-shaped rotary shaft, a hinge cup, a linkage part, a torsional spring, a connection part and a damper; the inner wall of the shell is provided with a locating block; the locating block and the shell are matched with each other to form two sliding grooves; the linkage part is provided with a push structure, is arranged in the shell through the first rotary shaft and is connected with the hinge cup through one shaft body of the U-shaped rotary shaft; the connection part is arranged in the shell through the second rotary shaft and is connected with the hinge cup through the other shaft body of the U-shaped rotary shaft; the second rotary shaft is sleeved with the torsional spring; the two ends of the torsional spring are arranged on the U-shaped rotary shaft and the first rotary shaft correspondingly; the damper is provided with an inverted-L-shaped locating sliding block and a stop block; the inverted-L-shaped locating sliding block comprises a transverse sliding block body and a longitudinal locating block body; the transverse sliding block body is inserted in the sliding grooves; the longitudinal locating block body can abuts against the locating block body; and the push structure can push the stop block. The door hinge has the advantages of being compact in structure, convenient to assemble, stable in buffering force, long in service life and convenient to maintain.

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 piston rod of the damper pulls the pusher to play a buffering role; the piston rod does not move on the axis, so the friction between the piston rod and the cylinder sealing ring is relatively large. After a long time of use, it is easy to leak oil and cause the door hinge to fail. Short life, inconvenient maintenance, poor door hinge precision. Contents of the invention [0003] The object of the present invention is to overcome the shortcomings of the prior art and provide a door hinge with a comp...

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 piston rod of the damper pulls the pusher to play a buffering role; the piston rod does not move on the axis, so the friction between the piston rod and the cylinder sealing ring is relatively large. After a long time of use, it is easy to leak oil and cause the door hinge to fail. Short life, inconvenient maintenance, poor door hinge precision

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