Longitudinal plate spring for rear auxiliary spring of light truck

The utility model relates to a longitudinal plate spring for a rear auxiliary spring of a light truck, which comprises a plate spring body, an auxiliary spring convex pinch plate and an auxiliary spring concave pinch plate, the auxiliary spring convex pinch plate and the auxiliary spring concave pinch plate are matched with each other and are arranged in the middle of the plate spring body, and the auxiliary spring convex pinch plate, the plate spring body and the auxiliary spring concave pinch plate are fixedly connected in sequence through positioning pins; the plate spring body is of a structure shaped like a Chinese character'gong 'and is made of composite materials. The steel plate spring is made of composite materials, and the defects that a common steel plate spring is short in service life, large in weight, low in safety, poor in comfort and the like are overcome. By the adoption of the ingenious structural design and the composite material plate spring produced through the advanced manufacturing proc