Rotating Shaft Mechanism and Electronic Device

An electronic device, comprising:

• a flexible display screen;
• a housing comprising a first sub-housing and a second sub-housing;
• and
• a rotating shaft mechanism separately connected to the first sub-housing and the second sub-housing, wherein the first sub-housing and the second sub-housing are capable of rotating relative to each other by using the rotating shaft mechanism, wherein the flexible display screen is separately connected to the first sub-housing and the second sub-housing, and wherein the rotating shaft mechanism, comprises:
• a base;
• a door panel;
• a connecting member rotatably connected to the door panel;
• a first swing arm rotatably connected to the base, wherein responsive to the first swing arm rotating relative to the base, the first swing arm is configured to slide relative to the connecting member;
• a second swing arm rotatably connected to the base and to the connecting member, wherein the second swing arm is configured to drive the door panel to move, and wherein a lower-pair connection is disposed between the door panel and the connecting member;
• a first limiting structure disposed between the first swing arm and the door panel, wherein while the first swing arm is at a folded position, the first swing arm does not drive the door panel to move, wherein the first limiting structure is capable of limiting sliding of the first swing arm in a specified direction relative to the connecting member, wherein the first limiting structure comprises a first abutment surface disposed on the door panel and a second abutment surface disposed on the first swing arm, and wherein the first abutment surface is capable of being in contact with the second abutment surface.