Folding mechanism and terminal device

A terminal device, comprising:

• a folding mechanism, the folding mechanism comprising:
• a base;
• a support body comprising a first fixing plate and a second fixing plate, wherein the support body is connected to the base such that the second fixing plate is closer to the base than the first fixing plate, the support body is provided with a first groove and a second groove that are corresponding to each other in position and located between the first fixing plate and the second fixing plate, and the support body may move toward or away from the base;
• a first swing arm, wherein the first swing arm comprises a first rotating portion and a first rotating body fastened to the first rotating portion, the first rotating portion is rotatably connected to the base, a part of the first rotating body extends into the first groove, and the first rotating body is configured to provide a force for the support body in a rotation process, so that the support body moves toward or away from the base;
• and
• a second swing arm, wherein the second swing arm comprises a second rotating portion and a second rotating body fastened to the second rotating portion, the second rotating portion is rotatably connected to the base, a part of the second rotating body extends into the second groove, and the second rotating body is configured to provide a force for the support body in a rotation process, so that the support body moves toward or away from the base.