Anti-deviation limiting structure

The utility model relates to a wagon balance anti-offset limiting structure with accurate measurement, in particular to an anti-offset limiting structure, which comprises a foundation pit, the lower surface of the inner wall of the foundation pit is fixedly connected with the lower surface of a base, a plurality of weighing sensors are symmetrically mounted on the upper surface of the base, a gear a and a gear b are driven to rotate by a stepping motor, and the gear a and the gear b are driven to rotate by the stepping motor. The gear b rotates to drive the screw a and the screw b to rotate, the screw a and the screw b drive the two threaded sleeves to get close to each other, the two threaded sleeves get close to each other to drive the two weighing plates to get close to each other, the stepping motor rotates reversely to drive the two weighing plates to get away from each other, and the distance between the two weighing plates is adjusted according to the width of two rows of wheels of a vehicle. The probl