Rotating shaft and electronic device

An electronic device, comprising:

• two screen-brackets;
• and
• a rotating shaft configured to connect the two screen-brackets, the rotating shaft including:
• two axle structures arranged symmetrically, one of the two axle structures including:
• an axle including a worm groove at a surface of the axle;
• a motion conversion structure cooperating with the worm groove to form a worm drive;
• a screen bracket connection structure movably connected to the motion conversion structure and including mounting holes being configured to mount the two screen-brackets;
• and
• a supporting bracket sleeved at the axle, rotating around an axis of the axle, and movably connected to the motion conversion structure and the screen bracket connection structure;
• wherein:
• the motion conversion structure is movable along an axis direction of the axle on a first surface relative to the supporting bracket;
• the screen bracket connection structure is movable along a radial direction of the axle on the first surface relative to the supporting bracket;
• the first surface is a surface where the supporting bracket is located;
• the screen bracket connection structure includes a track groove;
• and
• the motion conversion structure includes a first protrusion embedded in the worm groove and cooperating with the worm groove to form the worm drive, and a second protrusion embedded in the track groove and moving along a trajectory of the track groove in the track groove.