Upper fixing type control all-plastic wheel

An upper fixing type control all-plastic wheel comprises a wheel body, a shell and a driving mechanism, the shell is matched with the wheel body and the driving mechanism, a plurality of grooves are formed in the inner side of the wheel body, the driving mechanism comprises a supporting shaft and an operation handle arranged at the top end of the supporting shaft, and the outer side of the supporting shaft is sleeved with a sleeve. The shell comprises an arc-shaped part matched with the wheel body and a cylindrical body arranged on the driving mechanism in a sleeved mode, and a supporting table which extends towards the axis and is opposite to the sleeve is arranged in the cylindrical body. According to the top-fixed control all-plastic wheel, the operation handle is fixedly arranged at the top end of the driving mechanism and is fixed in direction, when braking is needed, the wheel body can be locked by directly stepping on the operation handle, unlocking can be achieved by loosening the operation handle, op