Hinge for inner flexible screen mobile terminal and inner flexible screen mobile terminal

1. A hinge for an inner flexible screen mobile terminal, comprising a left support structure, a right support structure and a middle support structure; wherein the hinge further comprising a pair of left connecting arms and a pair of right connecting arms, the left connecting arms and the right connecting arms are respectively rotatably connected on the left side and the right side of the middle support structure, the left support structure and the left connecting arm, the right support structure and the right connecting arm are slidingly connected and provided with a sliding stroke limit structure;

a left rotatable support member and a right rotatable support member are respectively provided between the left connecting arm and the right connecting arm on the inner side of the hinge, the left rotatable support member and the right rotatable support member are rotatably connected to the upper portions of left and right sides of the middle support structure respectively, a structure is provided between the left connecting arm and the left support structure and between the right connecting arm and the right support structure to prevent their relative rotation, a compression spring is provided between the left connecting arm and the left support structure and between the right connecting arm and the right support structure, and the left rotatable support member and the right rotatable support member are rotated downwards to a lower position to leave a space for accommodating a bent portion of the flexible screen when the hinge is folded, and when the hinge is rotated to a state corresponding to the spreading of the flexible screen, the left rotatable support member and the right rotatable support member are rotated to a higher position, and the left support structure and the right support structure are respectively provided with a rotation guide structure for the left rotatable support member and the right rotatable support member,

wherein the left support structure comprises a fixedly connected shell and a flexible screen support plate inside the fixedly connected shell, and

wherein the right support structure comprises a fixedly connected shell and a flexible screen support plate inside the fixedly connected shell.

2. The hinge for an inner flexible screen mobile terminal according to claim 1 , wherein the left connecting arm and the right connecting arm are connected by a transmission mechanism to achieve synchronous reverse rotation.

3. The hinge for an inner flexible screen mobile terminal according to claim 1 , wherein the middle support structure, the left rotatable support member and the right rotatable support member, the left support structure, and the right support structure jointly constitute a support structure for the spreading of the flexible screen.

4. The hinge for an inner flexible screen mobile terminal according to claim 1 , wherein a torque mechanism is provided between the middle support structure and the left connecting arm and between the middle support structure and the right connecting arm.

5. The hinge for an inner flexible screen mobile terminal according to claim 1 , wherein the left rotatable support member and the right rotatable support member are respectively formed by integrally connecting a plurality of finger-shaped structures, and the rotation guide structure comprise a guide plate arranged in a grid plate shape and is provide with a guide groove, and the guide plate fits the clearance of the finger-shaped structures.

6. The hinge for an inner flexible screen mobile terminal according to claim 1 , wherein the rotation guide structure is provided with a guide groove, and the left rotatable support member and the right rotatable support member are respectively provided with guide rods mating with the guide groove, and a flat groove is provided at the top of the guide groove, and when the hinge is rotated to a state corresponding to the spreading of the flexible screen, the movement of the left support structure and the right support structure back to the middle makes the guide rod to enter the flat groove and lock the state corresponding to the spreading of the flexible screen that the hinge is rotated to.

7. The hinge for an inner flexible screen mobile terminal according to claim 4 , wherein the left connecting arm and the right connecting arm are respectively on the inside of the left support structure and the right support structure, and the sliding stroke limit structure adopts a structure that mates long holes and pins.

8. An inner flexible screen mobile terminal, wherein a flexible screen is provided inside the mobile terminal, and the mobile terminal is provided with the hinge according to claim 1 , the flexible screen is laid on the inner side of the hinge, and is only fixedly connected to the middle portion of the middle support structure.