Door hinge

A door hinge, wherein the door hinge is fixedly arranged on a cabinet body, and the door hinge comprises a hinge seat and a hinge core, wherein the hinge seat comprises an upper housing and a lower housing and the hinge seat has an accommodation cavity, and the hinge core is located in the accommodation cavity of the hinge seat for connecting to a door shaft, wherein the hinge seat therein has a first adjustment mechanism moving back and forth along an installation direction of the hinge seat, wherein the installation direction is a horizontal direction perpendicular to door shaft;

• the hinge core is located on one side of the first adjustment mechanism, wherein the hinge core comprises a core part, a first adjustment part, and a second adjustment part, an end of the door shaft passes through the first adjustment part, the core part, and the second adjustment part of the hinge core in sequence;
• both the second adjustment part and the first adjustment part are located outside the core part, and the first adjustment part is located at one end of the second adjustment part away from the lower housing of the hinge seat;
• the accommodation cavity is further provided therein with a second adjustment mechanism and a third adjustment mechanism;
• and the hinge core, the second adjustment mechanism, and the third adjustment mechanism move simultaneously with the first adjustment mechanism, wherein the first adjustment mechanism moves to drive the hinge core to move simultaneously in the installation direction;
• during a movement of the hinge core in the installation direction, the second adjustment mechanism is driven to drive the second adjustment part to rotate, to drive the core part to move along a direction perpendicular to the installation direction of the hinge seat;
• and the third adjustment mechanism drives the first adjustment part to rotate, to adjust a rotation position of the hinge core,
• wherein a surface of the core part is provided with a plurality of sliding grooves equally spaced in an axial direction of the core part, and a spacer plate is arranged between the first adjustment part and the second adjustment part, wherein the spacer plate is provided with a fourth cylindrical hole;
• a surface of the fourth cylindrical hole is fixedly provided with guide blocks corresponding to the sliding grooves;
• and the guide blocks are inserted into the sliding grooves and movably cooperate with the sliding grooves.