Patent ID: 11868186
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC G  E | IPC E  G

Claim 13:
14. The opening and closing mechanism according to claim 13, wherein a sharp convex part is disposed at an end that is of the first sliding part and that is close to the joint part;
when the opening and closing angle is 180°, a first surface of the sharp convex part and a surface of the joint part are located in a same plane, and a second surface of the sharp convex part is fitted to the joint part; and
in a process in which the opening and closing angle is changed from 0° to 180°, the sharp convex part interferes with the surface of the joint part, so that the first body fastening part is disposed away from the first rotating shaft.