Hinge for rotating part and a mobile terminal

The present utility model discloses a hinge for rotating part, and the hinge comprises a first cam, a second cam, a fixed cam, a slide cam, a spring and a damper, and further discloses a mobile terminal that uses the hinge. The hinge for rotating part provided in the present utility model has the advantages of simple structure and easy assembling. It can be connected with a third rotating body in addition to two relatively rotatable bodies, and can achieve independent rotation and linkage of the second rotating body and the third rotating body according to the designed rotation procedure as required and achieve self-locking of hinge, and the third rotating body can be damped and buffered at the end of the rotating stroke. The hinge of the present utility model can be applied to the connection of various three rotating bodies, especially suitable for the connection of bracket, keyboard and screen in the mobile terminal. It is easy to open and close and it can provide stable support when the mobile terminal is within the range of opening angles.