Telescopic folding chair

A telescopic folding chair, comprising a mounting seat assembly and a cushion, wherein the mounting seat assembly comprises an upper mounting seat and a lower mounting seat correspondingly fitted up and down;

• a periphery of a bottom of the upper mounting seat is hinged with a plurality of support legs, and a periphery of a top of the lower mounting seat is hinged with a plurality of telescopic arm tube sets;
• the cushion is mounted on the plurality of telescopic arm tube sets;
• the lower mounting seat is provided with a plurality of inclined guide holes along a circumferential direction, and the plurality of support legs run through the plurality of inclined guide holes;
• the upper mounting seat is rotatably provided with a rotary limiting mechanism, and the lower mounting seat is provided with an avoidance hole;
• a bottom of the rotary limiting mechanism is provided with a limiting head, and the lower mounting seat is provided with a limiting portion corresponding to a periphery of the avoidance hole;
• the rotary limiting mechanism rotates to control the limiting head to be movably limited by the limiting portion;
• in an extended state, the limiting head runs through the avoidance hole and is rotatably limited by the limiting portion, and the upper mounting seat and the lower mounting seat abut against and lock each other up and down;
• and in a retracted state, the limiting head is not rotatably limited by the limiting portion and exits the avoidance hole, and the upper mounting seat and the lower mounting seat are separated from each other.