Rotation structure and electronic device

An electronic device comprising:

• a first body;
• a second body;
• and
• a rotation structure connecting the first body and the second body for the first body and the second body to open and close mutually, the rotation structure including:
• a first rotating shaft assembly;
• a second rotating shaft assembly;
• and
• a stopper, wherein:
• the first rotating shaft assembly includes a first shaft and a first wheel arranged on the first shaft, a first groove being arranged on the first wheel;
• the second rotating shaft assembly includes a second shaft and a second wheel arranged on the second shaft, the second shaft and the first shaft satisfying a parallel condition, a second groove being arranged on the second wheel;
• a first protrusion and a second protrusion are arranged on the stopper, the first protrusion being limited to move in the first groove, the second protrusion being limited to move in the second groove;
• the limit of the first groove to the first protrusion and the limit of the second groove to the second protrusion allow one of the first shaft and the second shaft to rotate;
• the first groove includes a first linear groove segment and a first spiral groove segment communicating with the first linear groove segment, the second groove includes a second linear groove segment and a second spiral groove segment communicating with the second linear groove segment, the first linear groove segment and the second linear groove segment extend along a first direction, and the first direction is parallel to the first shaft or the second shaft;
• when the first body is rotated relative to the second body from 0° to a specific angle, the first protrusion is limited to move in the first linear groove segment, and the second protrusion is limited to move in the second spiral groove segment, to lock the first shaft and rotate the second shaft;
• when the first body is rotated relative to the second body from the specific angle to 360°, the first protrusion is limited to move in the first spiral groove segment, and the second protrusion is limited to move in the second linear groove segment, to rotate the first shaft and lock the second shaft;
• and
• the specific angle is an angle between 0° and 360°.

A rotation structure comprising:

• a first rotating shaft assembly configured to connect to a first body of an electronic device;
• a second rotating shaft assembly configured to connect to a second body of the electronic device;
• and
• a stopper, wherein:
• the first rotating shaft assembly includes a first shaft and a first wheel arranged on the first shaft, a first groove being arranged on the first wheel;
• the second rotating shaft assembly includes a second shaft and a second wheel arranged on the second shaft, the second shaft and the first shaft satisfying a parallel condition, a second groove being arranged on the second wheel;
• a first protrusion and a second protrusion are arranged on the stopper, the first protrusion being limited to move in the first groove, the second protrusion being limited to move in the second groove;
• the limit of the first groove to the first protrusion and the limit of the second groove to the second protrusion allow one of the first shaft and the second shaft to rotate;
• the first groove includes a first linear groove segment and a first spiral groove segment communicating with the first linear groove segment, the second groove includes a second linear groove segment and a second spiral groove segment communicating with the second linear groove segment;
• when the first body is rotated relative to the second body from 0° to a specific angle, the first protrusion is limited to move in the first linear groove segment, and the second protrusion is limited to move in the second spiral groove segment, to lock the first shaft and rotate the second shaft;
• when the first body is rotated relative to the second body from the specific angle to 360°, the first protrusion is limited to move in the first spiral groove segment, and the second protrusion is limited to move in the second linear groove segment, to rotate the first shaft and lock the second shaft;
• the specific angle is an angle between 0° and 360°;
• and
• two ends of the first spiral groove segment are at different distances to a side, along an axial direction, of the first wheel, and two ends of the second spiral groove segment are at different distances to a side, along an axial direction, of the second wheel.