1results about How to "No fire hazard" patented technology

The utility model discloses a novel environment-friendly die-casting spraying decoration outer cylinder structure which is integrally formed in a die-casting mode. The outer barrel comprises an outer barrel body, an ignition cavity and a gunpowder cavity, wherein a sealing layer and a connecting channel are arranged between the ignition cavity and the gunpowder cavity; the volume of the ignition cavity is far smaller than that of the gunpowder cavity, and the ignition cavity is located at the upper position during vertical use; an arc-shaped sealing outer wall protruding upwards is arranged above the sealing layer, an upper ignition cavity of an inverted-cone-shaped structure is arranged in the middle of the sealing outer wall, a lower ignition cavity of a cone-shaped structure is correspondingly arranged below the sealing layer, and cone-shaped heads between the two cavities are communicated. And the lower ignition cavity is downwards in smooth transition with the inner wall of the circular-arc-shaped upwards-convex sealing opening above the gunpowder cavity. In order to solve the problems, the utility model provides a novel environment-friendly die-casting firework spraying outer cylinder structure which is simple in structure, convenient to operate, capable of being integrally formed, produced in batches, good in firework setting-off effect, environment-friendly, free of pollution, free of fire hazards and stable in spraying effect.