Colorful firecracker

Abstract

The invention discloses a colorful firecracker which comprises an outer cylinder and an inner cylinder installed on the inner side of the outer cylinder. A mud plug is arranged on the bottom of the outer cylinder. A propellant powder layer is arranged on the portion, above the mud plug, of the inner side of the outer cylinder. The propellant powder layer is in press fitting with the inner cylinder. The inner side of the inner cylinder is filled with effective powder. The colorful firecracker further comprises an antistatic paperboard arranged on the portion, on the bottom of the inner cylinder, of the outer cylinder. A detonating pipe is arranged in the center of the antistatic paperboard in a penetrating manner. The two ends of the detonating pipe communicate with the inner cylinder and the propellant powder layer. The inner side of the detonating pipe is filled with saltpeter guide powder. A spiral groove is formed in the exterior of an inner pipe. The exterior of the inner pipe is coated with an antistatic coating. According to the colorful firecracker, the situation that the propellant powder layer and the effective powder are influenced by static electricity can be avoided, inaddition, by means of colorful powder, the periphery of the detonating portion can be well decorated in the daytime, meanwhile, hydrogen can assist secondary shining of the effective powder, and thedecorating effect is good.

Description

technical field [0001] The invention relates to a firework, in particular to a colorful fireworks, belonging to the technical field of fireworks. Background technique [0002] Fireworks are pyrotechnic entertainment products that use pyrotechnics to produce sound, light, and color effects through combustion or explosion for viewing. They are an important part of Chinese folk customs; Confined to a certain space, such as at the bottom of spherical fireworks, the heat and gas accumulated here will generate violent tension in the launch tube; when the explosion occurs, the air expands rapidly, pushing the fireworks, generating a large initial velocity, rushing towards High altitude; there are many kinds of fireworks, such as Chinese patent application number: 201720092832.X, which discloses a drop-shaped firework, including a firework cylinder, a lead wire, and a flower spray effect cartridge, and is characterized in that the firework cylinder is A drop-shaped cylinder body, a...

AI Technical Summary

Problems solved by technology

The inner bottom of the fireworks body is equipped with a flash effect cartridge; after the tower fireworks are lit, the spray effect cartridge sprays colorful fireworks into the air, and at the same time, the flash effect cartridge at the inner bottom of the fireworks body emits a continuous flash effect. The effect passes through the translucent colored paper on the through hole on the side of the firework body and emits to the outside, giving people a refreshing feeling; but during the reproduction and transportation of the fireworks in the prior art, static electricity is likely to be generated, which causes it to ignite the gunpowder, which is easy to cause Production accidents. In addition, the existing fireworks are generally affected by the intensity of light, and their effects must be fully displayed in the dark

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