US Patent 10214951 Door hinge having damping function

A door hinge having a damping function, comprising a housing, a first rotating shaft, a second rotating shaft, a U-shaped rotating shaft, a hinge cup, a linkage member, a torsion spring, a connector, a supporting structure, and a damping structure; one end of the linkage member is rotationally provided in the housing by means of the first rotating shaft, and the other end of the linkage member is rotationally connected to the hinge cup by means of one arm of the U-shaped rotating shaft; one end of the connector is rotationally provided in the housing by means of the second rotating shaft, and the other end of the connector is rotationally connected to the hinge cup by means of the other arm of the U-shaped rotating shaft; the torsion spring is fitted over the second rotating shaft.