Door hinge

A door hinge, comprising:

• a fixed body which is a hollow housing;
• a linkage assembly comprising a plurality of linkage blocks for connecting a movable body and the fixed body;
• the movable body which is a hollow housing having an inside space, wherein the movable body has a lengthwise direction, a crosswise direction and a depth direction perpendicular to one another and the depth direction extends into the inside space and, wherein the movable body is provided with a sliding block which is slidable along the depth direction of the movable body, the sliding block has one side hinged to the linkage assembly, and the other side provided with a side surface including a straight track surface and an inclined track surface inclined toward a middle of the sliding block;
• and
• a self-closing mechanism disposed on one side of the movable body close to the straight track surface, wherein the self-closing mechanism has a telescopic structure which can extend and retract along the lengthwise direction of the movable body, one end of the self-closing mechanism abuts against the side surface of the sliding block, and the self-closing mechanism is configured to drive the sliding block to slide in the depth direction toward the inside space of the movable body when the end of the self-closing mechanism abuts against the inclined track surface and extends.