Deviation adjusting carrier roller device capable of preventing belt from being torn in return

The utility model discloses a deviation adjusting carrier roller device capable of preventing a belt from being torn back, which relates to the field of belt deviation adjusting equipment and comprises a supporting frame, a carrier roller, the belt and a first supporting frame, a connecting rod penetrating through a through hole is arranged in the first supporting frame, and a second supporting frame is arranged at one end of the connecting rod. An anti-deviation assembly is arranged on the inner side of the second supporting frame and comprises an arc-shaped column, and a baffle is arranged at one end of the arc-shaped column. According to the anti-deviation device, the anti-deviation assembly is arranged and comprises the baffle, the supporting block, the arc-shaped groove and the rotating rod, and the baffle, the check block, the arc-shaped column and the second supporting frame are rotationally connected through the rotating rod, so that when the belt deviates slightly and makes contact with the baffle, t