Telescopic chair with adjustable length

The utility model relates to a telescopic chair with an adjustable length, which comprises a chair frame, chair body plate pieces, a telescopic mechanism and a shear fork structure. The lower portion of the chair frame is used as a support of the chair and a horizontal plane. The upper portion of the chair frame is used as a support of the chair body plate pieces. Guiding tracks are arranged at the edges of the bottoms and the backs of the chair body plate pieces. Forks at the two ends of the shear fork structure are arranged in the guiding tracks, accordingly, adjacent chair body plate pieces are connected, and a chair body plate piece at the leftmost side and a chair body plate piece at the rightmost side are fixedly connected with the chair frame. The telescopic mechanism comprises telescopic sleeves and a telescopic rod. The telescopic sleeves are fixedly arranged at the bottom of the chair frame and the back of the back part. One end of the telescopic mechanism is fixedly connected with the chair frame, and the other end of the telescopic mechanism is connected into the telescopic sleeve in a sleeved mode. Through the shear fork mechanism and the telescopic mechanism, elongation and compression of the chair are achieved, the structure is simple, using is convenient, and good using value and promotion value are achieved.