Pressure release valve of hydrogen fuel cell

The utility model is suitable for the technical field of pressure release valves, and provides a hydrogen fuel cell pressure release valve which comprises a valve body, the valve body is movably connected with an adjusting assembly, the adjusting assembly is movably connected with an elastic piece, the elastic piece is movably connected with a valve core, and the valve core is movably connected with the valve body. The adjusting nut is installed on the valve body in a threaded mode, the elastic piece is compressed by adjusting the distance between the adjusting nut and the valve element, and due to the fact that the elastic force of the elastic piece and the compression distance of the elastic piece are linearly changed, the larger the compression degree of the elastic piece is, the larger the elastic force is. Furthermore, the forces are mutual (namely the minimum pressure of the gas required to penetrate through the valve core is equal to the elastic acting force applied to the valve core by the compression