Sound insulation device for road surface noise reduction

The utility model provides a sound insulation device for road surface noise reduction, and relates to the field of road surface noise reduction, the sound insulation device comprises a base plate and a sound insulation plate located above the base plate and vertically connected with the base plate, one end of the sound insulation plate facing the road side is provided with a warning assembly, and the warning assembly is fixedly connected to the sound insulation plate. Airflow generated during running of an automobile is used as driving energy to drive a generator to run, electric energy generated after running is stored in a storage battery arranged in a battery box, when night drops, power is supplied to a warning lamp through the storage battery, a red lamp and a blue lamp are turned on alternately, and therefore it is reminded that horn forbidding is needed or the running speed is reduced in the area. Therefore, the large-decibel noise pollution phenomenon caused by high vehicle speed in the vehicle runnin