Novel general gasoline engine camshaft pressure reducing valve

The application discloses a novel general gasoline engine camshaft pressure reducing valve. The novel general gasoline engine camshaft pressure reducing valve can effectively prevent an engine from blasting on the premise of guaranteeing good starting performance and starting hand feelings. The novel general gasoline engine camshaft pressure reducing valve comprises a camshaft, wherein a gas inlet convex peach is arranged on the camshaft, a slide chute is arranged on the camshaft, a slide block eccentric relatively to the camshaft is connected in the slide chute in limiting slide mode, a slide hole is formed in the gas inlet convex peach, a push rod is connected in the slide hole in slide mode, an opening of the slide hole, in the surface of the gas inlet convex peach, is located on one side of a convex portion, the other opening of the slide hole is corresponding to the slide block, the length of the push rod is larger than the length of the slide hole, a concave portion is arranged on the slide block, and the concave portion directly faces the push rod after the slide block centrifugally moves. The novel general gasoline engine camshaft pressure reducing valve of the above structure not only guarantees the good starting performance and the starting hand feelings, but also can effectively prevent the engine from blasting.