Pawl arm swing type lift mechanism of wrecker

The utility model belongs to a lifting mechanism for road-block wreckers for removing accident and illegal cars in the fields of public security, traffic management and traffic accident handling. The lifting mechanism comprises a lifting arm holder, a lifting outer arm, a lifting inner arm, a lifting oil cylinder, a draw hook, a link rod, a drag hook pin, a bracket arm and an oblique oil cylinder. The lifting outer arm and the oblique oil cylinder are respectively articulated with the lifting arm holder. The other side of the oblique oil cylinder is articulated with the lifting outer arm. The connection between the lifting outer arm and the lifting inner arm are dependent on the pivoted joint of the lifting oil cylinder. The draw hook is fixed on the lifting outer arm in pawl mode. The draw hook pin is fixed on the lifting inner arm. The swing/rotation center of the bracket arm is articulated with the bottom of the lifting inner arm, and the rear of the bracket arm is articulated with the bottom of the liftin