SEAT CUSHION STRUCTURE CAPABLE OF ADJUSTING SOFTNESS AND HARDNESS

A seat cushion structure capable of adjusting softness and hardness, comprising a cushion sponge (), a wheel-spoke seat inner housing (), a seat sponge () and a seat outer housing (), which are sequentially disposed from top to bottom; a coil spring () is fixedly provided on the wheel-spoke seat inner housing (); an adjustment handle () is provided outside the seat outer housing (), an adjustment mechanism is connected to the adjustment handle () and provided inside the seat outer housing (); the adjustment mechanism is also connected to the coil spring (), configured for adjusting contraction radius of the coil spring (); the adjustment mechanism is capable of adjusting contraction radius of the coil spring () since being controlled by the adjustment handle (), thereby the softness and hardness of the seat cushion structure is adjusted.