Novel rubber roller locking device

The utility model discloses a novel rubber roller locking device which comprises a roller shaft, a mounting seat, a bowl-shaped cap, a rubber roller and a locking mechanism, the locking mechanism comprises a fixing sleeve arranged on the roller shaft, a fixing assembly arranged between the roller shaft and the fixing sleeve, and a plurality of connecting bolts which penetrate through the bowl-shaped cap and then are in threaded connection with the fixing sleeve. The rubber roller locking device has the following advantages and effects that when a rubber roller is locked, the fixing sleeve is limited to move and rotate towards the bowl-shaped cap by the fixing assembly, at the moment, when the plurality of connecting bolts penetrate through the bowl-shaped cap, then are in threaded connection with the fixing sleeve and are tightened, the connecting bolts apply acting force for moving towards the mounting seat to the bowl-shaped cap, and the rubber roller is locked. The rubber roller is fixed through the bowl-s