Inner barrel body used for environment-friendly fireworks

Abstract

The invention discloses an inner barrel body used for environment-friendly fireworks. The inner barrel body comprises an inner barrel main body (3), wherein the upper end of the inner barrel main body (3) is closed, and the lower end of the inner barrel main body (3) is open. The inner barrel body is characterized in that at least two supporting points (8) which are integrally formed with the inner barrel main body and extend in the radial direction are arranged on the side wall of the upper end of the inner barrel main body (3), the inner barrel main body (3) can be kept in the axial central line of a launch barrel due to the supporting points (8), the supporting points (8) are flush with the upper end face of the inner barrel main body (3), or a skirt (9) which is integrally formed with the inner barrel main body (3) is arranged at the upper end of the inner barrel main body (3), and when used, the skirt (9) seals the gap between the launch barrel and the inner barrel main body (3) and keeps the inner barrel main body (3) to be inside the launch barrel. The inner barrel body used for environment-friendly fireworks is low in production cost, high in production efficiency and environmentally friendly, and saves energy.

Description

technical field [0001] The invention relates to a firework, in particular to an inner cylinder body for an environment-friendly firework. Background technique [0002] Fireworks have a long history in our country and are deeply loved by people for their brilliance. At present, there is a kind of firework, its structure is that an inner tube is housed in the launching tube, the upper end of the inner tube is covered with an upper cardboard, the lower end is placed with a lower cardboard, propellant is housed between the lower cardboard and the bottom of the launching tube, and the lower cardboard is provided with The through hole is convenient for igniting the lead wire of the inner cylinder when the propellant is burning. When the propellant is burning, the inner cylinder is launched into the air, and the inner cylinder explodes and burns in the air to produce brilliant and colorful colors. The function of the upper cardboard and the lower cardboard is to cover the gap betw...

AI Technical Summary

Problems solved by technology

But its disadvantage is that the manufacturing process is complicated. The manufacturing process is to first put the propellant on the inner bottom of the launch tube, then cover the upper and lower cardboard, then put it into the inner tube, and then cover the cardboard. These are all done manually. The time is long, which affects the production efficiency of fireworks, increases the cost of fireworks manufacturing, and the lower cardboard and upper cardboard are launched into the air, affecting environmental sanitation

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