Separation and traction device used for loosening of knee joints in rehabilitation department

The invention discloses a separation and traction device used for loosening of knee joints in the rehabilitation department. The device comprises a base. Slide rails are symmetrically arranged on theleft and right side walls of the base, electric sliding blocks are movably connected to the two groups of slide rails respectively, a supporting frame is arranged on the tops of the electric sliding blocks, and a first pulley column is arranged on the top of the supporting frame. Electronically controlled pneumatic stretching rods are arranged on the sides, away from the base, of the two groups ofelectric sliding blocks respectively, rotating shafts are arranged on the tops of the two groups of electronically controlled pneumatic stretching rods, two groups of rotating sleeves sleeve the outer walls of the rotating shafts, and a shank supporting plate is connected to the front sides of the rotating sleeves through connecting columns. The structural design is reasonable, the distance between a backup plate and the