Abstract: A hinge, a left rotating bracket and a right rotating bracket of the hinge are provided on a left linkage mechanism and a right linkage mechanism and are connected to a middle support frame by the linkage mechanisms. A synchronization structure is provided between the linkage mechanisms such that the rotating brackets simultaneously rotate in a reverse direction. The rotating brackets are respectively provided with sliding connection slots. The sides of the middle support frame are provided with mechanisms for providing rotational resistance. Rotating members in the mechanisms providing rotational resistance on the sides are each provided with a connection arm. The mechanisms are slidably connected to the sliding connection slots of the rotating brackets by the connection arms, respectively. The rotating brackets of the hinge are in direct sliding connection with the rotating members in the resistance mechanisms hinged to the middle support structure by guiding slots.

Abstract: A hinge, a left rotating bracket and a right rotating bracket of the hinge being respectively provided on a left linkage mechanism and a right linkage mechanism and being respectively connected to a middle support frame by means of the left and right linkage mechanisms A synchronization structure is provided between the left and right linkage mechanisms such that the left and right rotating brackets simultaneously rotate in a reverse direction; the left and right rotating brackets are respectively provided with sliding connection slots; the left and right sides of the middle support frame are respectively provided with mechanisms for providing rotational resistance; moreover, rotating members in the mechanisms providing rotational resistance on the left and right sides are each provided with a connection arm; the mechanisms are slidably connected to the sliding connection slots of the left and right rotating brackets by means of the connection arms, respectively.