Longitudinal composite material plate spring suspension locking device

The utility model provides a longitudinal composite material plate spring suspension locking device. Plate spring comprising a plate spring body, an upper locking plate and a lower locking plate are respectively arranged at the upper end and the lower end of the plate spring body; side locking blocks are arranged on the two sides of the plate spring body correspondingly, the upper locking plate isof a rectangular plate-shaped structure, upper pressing blocks are fixedly welded to the two ends of the lower surface of the upper locking plate correspondingly, multiple sets of springs distributedat equal intervals are fixedly welded to the bottom of the upper locking plate, and first locking grooves and third locking grooves are formed in the sides, close to the plate spring body, of the side locking blocks. According to the longitudinally-arranged composite material plate spring suspension locking device, the plate spring body is fixed through matching of the upper locking plate, the lower locking plate and the