Exhaust manifold assembly structure integrated with EGR (Exhaust Gas Recirculation) interface

The utility model relates to an exhaust manifold assembly structure integrated with an EGR (Exhaust Gas Recirculation) interface, and belongs to the technical field of automobile engine design and manufacturing. The exhaust manifold assembly structure integrated with the EGR connector comprises a plurality of exhaust manifolds, the front ends of the exhaust manifolds are connected with exhaust manifold flanges, the rear ends of the exhaust manifolds are converged to form a converging opening, the EGR connector is arranged on the side wall of the converging opening, a front oxygen sensor connector is further arranged on the side wall of the converging opening, and a rear oxygen sensor connector is further arranged on the side wall of the converging opening. The converging opening is communicated with the upper end of the catalyst, the lower end of the catalyst is connected with the exhaust outlet flange, and a rear oxygen sensor connector is arranged on the side wall of the lower end of the catalyst. The exhau