COMPRESSION MOLDED COMBINED FIREWORK |
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| 申请号 | EP13836224 | 申请日 | 2013-03-12 | 公开(公告)号 | EP2781877A4 | 公开(公告)日 | 2015-09-16 |
| 申请人 | LIUYANG YIHELONG FIREWORKS GROUP CO LTD; | 发明人 | HUANG GUANGHUI; HUANG MINGCHU; | ||||
| 摘要 | The disclosure discloses a compression-molded combination fireworks, including a number of parallel tubular cavities (2) uniformly disposed in a main body (1). The upper ports of the tubular cavities (2) are open and the lower ports of the tubular cavities (2) are sealed. Drugs for launching fireworks and effect members are accommodated in the tubular cavities (2). The sealed ends of the tubular cavities (2) are provided with igniting holes (5) penetrating the bottom of the main body (1) and the bottom openings (6) of the igniting holes (5) are located in a fuse groove (7). A cut-off groove (8) is set between the bottom openings (6) of the igniting holes (5) in the fuse groove (7) and the fuse groove (7) is sealed by glue (9). The glue (9) is enabled to form a closed ring easily along the direction of the cross section of fuse in the fuse groove to cut off the passages through which gunpowder gases advance along the gaps to eliminate flame propagation. At the same time, all paths that allow high-pressure burning gunpowder gases to burst out of the igniting holes (5) to cause accidents are blocked, and the gunpowder gases in all tubular cavities (2) are restrained and can only burst out from the openings (6) of the upper ends of the tubular cavities (2), thus ensuring the safety of the product, normalizing the use amount of the gunpowder and improving the blast-off quality. | ||||||
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