Folding chair

A folding chair, comprising:

• a seat plate,
• a back plate,
• two front legs, and
• two rear legs, wherein:
• a left side and a right side of the seat plate are respectively symmetrically disposed with a corresponding one of the two front legs,
• a left edge and a right edge of the seat plate are respectively rotatably connected to a middle portion of the corresponding one of the two front legs or are respectively rotatably and slidably connected to the middle portion of the corresponding one of the two front legs,
• the left side and the right side of the seat plate are respectively symmetrically disposed with a corresponding one of the two rear legs,
• the left edge and the right edge of the seat plate are respectively rotatably connected to the corresponding one of the two rear legs or are respectively rotatably and slidably connected to the middle portion of the corresponding one of the two front legs,
• each of the two front legs and a corresponding one of the two rear legs disposed on a same side of the seat plate form a foldable bracket shaped as herringbone,
• the back plate is disposed between a top portion of a first one of the two front legs and a top portion of a second one of the two front legs,
• each of the two front legs is connected with a joint,
• the joint is disposed between the back plate and the seat plate,
• the joint extends rearward to form an extension portion,
• a rear end of the extension portion is rotatably connected to a top end of a corresponding one of the two rear legs,
• a barrier extends from a rear edge of each of the two front legs or a front edge of each of the two rear legs, and
• when the folding chair is folded, the barrier separates each of the two front legs from a corresponding one of the two rear legs and provides an accommodation space for fingers between each of the two front legs and the corresponding one of the two rear legs.