Belt resetting device for belt type oil pumping unit

The utility model relates to a belt resetting device for a belt type oil pumping unit. The belt resetting device comprises a support and a jackscrew as well as a resetting plate arranged on the top of the jackscrew, wherein a through hole is arranged on the support, an outer nut is arranged in the through hole, the jackscrew is screwed in the outer nut and drives the resetting plate to rotate, a U-shaped groove which is used for being blocked at the edge of a belt of the belt type oil pumping unit is arranged at the inner side of the side part of the upper end of the resetting plate, an arc-shaped locating blocking sheet is arranged at the front end of the support, and the two ends of the arc-shaped locating blocking sheet are respectively provided with a left nut and a right nut which are used for fixing a roller bearing of the belt type oil pumping unit. The belt resetting device of the belt type oil pumping unit has the advantages that the eccentric wear problem of the belt of the belt type oil pumping uni