Automatic folding chair

An automatic folding chair, comprising:

• a chair seat and a folding chair frame, wherein the folding chair frame comprises an automatic folding assembly, a rear supporting seat, and two front supporting seats symmetrically arranged on the left and the right;
• the rear supporting seat is rotatably connected with two first connecting rods, and the two first connecting rods are fixedly connected to the two front supporting seats respectively;
• the rear supporting seat and the front supporting seats are detachably inserted with a foot rod and a supporting rod, and the supporting rod and the chair seat are detachably connected;
• the automatic folding assembly comprises an adapter, a telescopic rod, and second connecting rods;
• the adapter is located between the two front supporting seats;
• the left and right sides of the adapter are respectively rotatably connected with the second connecting rods, and the two second connecting rods are rotatably connected to the two front supporting seats one by one;
• the telescopic rod is an elastic rod that can be axially elongated under external force, axially contracted under its own internal force, or axially contracted under external force, and axially elongated under its own internal force;
• one axial end of the telescopic rod is fixedly connected to the rear supporting seat, and the other axial end thereof is fixedly connected to the adapter;
• the telescopic rod is further provided with a self-locking piece, and the self-locking piece has a locked state and an unlocked state;
• in the locked state, the self-locking piece can restrict the telescopic rod to expand and contract;
• in the unlocked state, the telescopic rod can actively expand and contract.