Patent ID: 11880233
Assignee: LENOVO (BEIJING) LIMITED
Field: Mechanical elements (Mechanical engineering)
Classification: CPC G  F | IPC G

Claim 11:
12. The electronic device of claim 10, wherein:
the limiting part includes a pin shaft, the pin shaft being configured to expand and contract in a radial direction of the rotating shaft;
the rotating shaft includes a first groove and a second groove for allowing the pin shaft to expand into and configured to be locked with the pin shaft; and
the pin shaft is configured to:
in response to the rotating shaft rotating in a first direction to cause the pin shaft to align with the first groove and enter the first groove, be locked with the first groove to prevent the rotating shaft from continuing to rotate in the first direction; and
in response to the rotating shaft rotating in a second direction to cause the pin shaft to align with the second groove and enter the second groove, be locked with the second groove to prevent the rotating shaft from continuing to rotate in the second direction.