Tail opening diversion sound amplification structure and vehicle

The utility model provides a tail port diversion sound amplification structure and a vehicle, which belong to the technical field of sound attenuation and noise reduction and comprise an adjusting pipe and a diversion sound amplification cover. The tail end of the adjusting pipe is provided with a reaming section to form primary sound amplification; and the small end of the diversion sound amplification cover is connected to the reaming section to form secondary sound amplification. According to the tail port diversion sound amplification structure provided by the utility model, the reaming section at the tail end of the adjusting pipe forms primary sound amplification, so that the flow rate of tail gas is reduced; and the flow guide sound amplification cover is trumpet-shaped and is used for carrying out secondary sound amplification on the discharged air flow, so that the flow speed of the air flow is further reduced. The airflow is amplified twice when being discharged into the atmosphere, so that the flow