Hinge of a mobile terminal having an inward-foldable flexible screen and a mobile terminal having an inward-foldable flexible screen

The invention provides a hinge of a mobile terminal having an inward-foldable flexible screen, which comprises a middle U-shaped cover, a left support frame, and a right support frame, and the left support frame, the right support frame and the U-shaped cover are rotatably connected; a foldable and unfoldable flexible screen support plate is connected to the left support frame, and the right support frame and the U-shaped cover, the flexible screen support plate is located inside the hinge; the flexible screen support plate is composed of a rotatable first left support plate, a second left support plate, a first right support plate and a second right support plate; the first left support plate is provided with a short lever arm that takes the shaft as a fulcrum to pull and support the second left support plate, and the first right support plate is provided with a short lever arm that takes the shaft as a fulcrum to pull and support the second right support plate. The invention also provides an inward-foldable flexible screen mobile terminal using the above hinge. The invention has a simple structure, can make the middle mechanism of the hinge not to be exposed after the hinge is closed and provide a space for accommodating the bending portion of the flexible screen, and provides a better sense of operation experience.