Adjustable limb rehabilitation apparatus

The invention provides an adjustable limb rehabilitation device. The adjustable limb rehabilitation device comprises a base, a sliding groove, a supporting plate, a first silica gel pad, a first supporting column, a zigzag rotating pipe, a lifting rod, a pedal plate, a supporting box, a fixed frame, a storage groove, a hand rocker, a slidable supporting exercise chair structure, an adjustable resistance telescopic rod structure and a rotatable positioning supporting frame structure. The resistance plate, the silica gel ring, the inclined T-shaped rod, the traction spring, the first adjusting rod, the wing-shaped nut and the fixed frame are matched with one another, so that the length of the first adjusting rod is adjusted by rotating the wing-shaped nut and connecting the wing-shaped nut with the first adjusting rod in a threaded mode in the using process, and the resistance plate is fixed through traction force of the traction spring. The friction force between the resistance plate and the brake disc arrange