Deviation rectifying device for grab bucket

The utility model discloses a grab bucket deviation rectifying device, and belongs to the technical field of grab bucket deviation rectifiers. The connecting seat is fixed on an excavator connecting rod; the rotating shaft is rotationally connected into the connecting seat; one end of the rotating shaft is used for mounting a grab bucket; the fixed rod is fixedly mounted at the other end of the rotating shaft; the connecting rod is rotationally connected to one end of the fixing rod away from the rotating shaft; the fixed seat is fixed on a connecting rod of the excavator and is in sliding connection with a movable block; the movable block is rotationally connected with the other end of the connecting rod; the hydraulic cylinder is fixed on the movable block and is used for driving the connecting rod to move on the fixed seat; the fixing shaft penetrates through the connecting seat and extends to the upper end of the connecting seat to form an extension part; scale lines are arranged on the top end face of th