Tool-free mechanical automatic exhaust valve for aerostat

The invention discloses a tool-free mechanical automatic exhaust valve for an aerostat. The tool-free mechanical automatic exhaust valve for the aerostat comprises an installation plate (1), a sealing cover (2), a sealing gasket (3) and a spring valve rod assembly, wherein the installation plate (1) is provided with a compression bolt assembly (6) used for tightly pressing an air bag, a set of air holes are formed in the installation plate (1), a set of air holes are formed in the sealing cover (2), a spring groove for the spring valve rod assembly to be installed in is formed in the middle of the sealing cover (2), a valve rod pass hole is formed in the bottom of the spring groove, the sealing cover (2) is installed on the bottom surface of the installation plate (1), and the sealing gasket (3) is fixedly installed at the bottom of the sealing cover (2). A valve body is made of a full hard aluminum material, and thereby being light in weight, and the valve body is simple in structure and easy to maintain; be