Firecracker

The utility model provides a firecracker, the utility model discloses an ignitor electrode on firecracker includes bag formula casing and wears to locate the cyst wall of bag formula casing, bag formula casing integrated into one piece and have the position of inflating, the cyst wall formation heat clinkering of inflating near position department constructs, is equipped with in the inner chamber of bag formula casing from inflating the explosion gas mixture of compriseing combustible gas and combustion -supporting gas that the position injects into according to the settlement proportion, and the hot melt structure seals by fusing inflates the position and makes the airtight structure of bag formula casing formation. This kind of firecracker lights through the explosion gas mixture of ignitor electrode in with bag formula casing and blasts and produce the big gun sound when touchhing off, and the explosion gas mixture does not generate solid?products and harmful gas, can not cause atmosphere pollution and env