Combined firework launching barrel and combined firework with same

Abstract

The invention discloses a combined firework launching barrel. The combined firework launching barrel comprises an outer barrel body and an inner barrel body filled with firework effect powder, whereinan opening is formed in the upper end of the outer barrel body, and a baffle is arranged at the lower end of the outer barrel body; a plurality of protruding strips are arranged on the inner side wall of the outer barrel body, and the protruding strips extend from the lower end of the outer barrel body to the upper end and are parallel to the axis of the outer barrel body; and the inner barrel body is arranged in the outer barrel body in a pressed mode, and the outer wall of the inner barrel body is extruded with the protruding strips, so that the cross section area of the outer barrel body is reduced, the launching height of the effect powder is more accurate, the using amount of propellant powder is reduced, manufacturing materials are saved, the production cost is saved, and the safetycoefficient of combined firework is improved.

Description

technical field [0001] The invention relates to the technical field of fireworks, in particular to a combined fireworks launching tube. Background technique [0002] Fireworks have a long history in our country and are deeply loved by people for their brilliance and variety. The launch tube of traditional cylindrical fireworks is composed of a single paper tube as the basic launch unit. The bottom of a single paper tube is sealed with a mud bottom, and the paper tubes are glued together by glue. The bottom of the paper tube is sealed with a mud bottom, and the top is sealed with a hard paper cover. Paper products and mud bottoms are prone to moisture. The paper tube and the hard paper cover are easily deformed after being damp, which leads to the inability to form a good sealing effect between the paper tube and the hard paper cover, which reduces the launch height of the effect drug (explosion and discharge effect), resulting in a low-explosion phenomenon; When the bottom...

AI Technical Summary

Problems solved by technology

The paper tube and the hard paper cover are easily deformed after being damp, which leads to the inability to form a good sealing effect between the paper tube and the hard paper cover, which reduces the launch height of the effect drug (explosion and discharge effect), resulting in a low-explosion phenomenon; When the bottom cover of the mud head under the tube gets wet, the soil will loosen and cause the sealing effect to deteriorate and the pressure will be released. The effective medicine cannot be launched high into the sky, and the tube will explode, which seriously threatens the safety of the viewers.

[0003] The individual paper launching tubes are bonded with glue, but the glue will fail when it gets wet, and the tubes will often fall apart and fall to the ground. There are safety hazards such as oblique flying, horizontal flying, and random explosions during launching.

In particular, in order to make the fireworks look larger, many manufacturers will add foam square strips or foam boards between the paper tubes, which will further make the structure of the combined fireworks unstable.

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