Hemodialysis bed-chair linkage device

The invention discloses a hemodialysis bed-chair linkage device which comprises a base, a seat part is arranged at the top of the base, an air pressure rod is connected between the base and the seat part, a backrest part is arranged on the rear side of the seat part in a retracting mode, and a pressing rod and a sleeve which are in sliding connection with each other are arranged on the two sides between the base and the seat part. A transverse plate is connected between the top ends of the sleeves, connecting rods are arranged on the corresponding sides of the pressing rods, the lower ends of the connecting rods slidably penetrate to the outer portion of the bottom end of the transverse plate, and linkage assemblies are arranged on the two sides of the bottom of the connecting position of the transverse plate and the connecting rods. According to the hemodialysis bed-chair linkage device, auxiliary supporting can be carried out when the air pressure rod ascends and descends, the stability in the ascending and