Novel one-way belt pulley

The utility model discloses a novel one-way belt pulley, which relates to the technical field of belt pulleys, and comprises a belt pulley body, a driving shaft and mounting mechanisms, the belt pulley body and the driving shaft are connected together through four groups of mounting mechanisms, each mounting mechanism comprises a mounting block and a connecting rod, the mounting block is buckled in a mounting groove, and the connecting rod is connected with the driving shaft. When the belt pulley body needs to be disassembled, a pull plate is pulled by two hands to pull an auxiliary rod out of a first auxiliary groove, the auxiliary rod is pulled out of a second auxiliary groove, the auxiliary rod is pulled out of the second auxiliary groove, and then the belt pulley body is disassembled. Then the side plate is pulled towards one side of the fixing block, the insertion rod is pulled out of the insertion groove, at the moment, the auxiliary rod is inserted into the second auxiliary groove under the action of t