The utility model discloses a double-layer sealing zipper (Figure 1), the zipper includes left and right sealing tape (No. 5, 6, 7), tooth portion of the left sealing tape is provided with a first tooth (number 1) coated with the adhesive layer and seal (No. 3) and the lower sealing coating glue layer (No. 3); the right tooth seal tape with second tooth chain (No. 2) coated with the adhesive layer and seal (No. 4) and the lower sealing coating layer (No. 4); upper and lower sealing coating adhesive flange edge; the first teeth and second teeth in the chain chain zipper when matching mesh the sealing flange is coated with the adhesive layer; in meshing zipper under tension pressed against each other to seal the corresponding. The utility model is a novel structure of zipper chain teeth, upper and lower sealing flange is coated with the adhesive layer, adhesive coated flange seal strength increase mutual top tight junction chain around teeth in meshing zipper sealing under tension on the outside, water cannot penetrate the zipper anywhere, even in high strength pressure next, also has good sealing function, greatly improving the safety of diving.
【技术实现步骤摘要】
双层密封拉链
本技术属于拉链
,具体涉及一种密封拉链。
技术介绍
传统的拉链有钢、铝拉链,塑钢、注塑拉链,树脂拉链,尼龙拉链等等,通常不具有防水、气密、防尘、防辐射、隔光等功能,而人类在很多领域都可能对密封拉链有需求,例如,防护服类:宇航服、潜水服、用于潜水艇的逃生服、减压服、危险防止服、污染防止服、防辐射服、用于水上滑艇的简易服等;密封套类:飞机引擎、发电装置、电器器具、机械工具、飞机、降落伞、壳物仓、生物、用于运输的集装箱;其他:需要保持气密状态的构造物、气塞、救生筏、救生装备、船舶备件、舱口盖、污染物废弃袋、隔离床、气体泄露防止门、帐篷、气垫船围裙部分、热气球、屋檐帆等等。现有技术中指出了一种防水拉链:布带层与防水胶层贴合,防水胶层与链牙相连接,防水胶层位于布带层与链牙之间,由于防水胶层在物件中位于拉链布带层的外侧,所述拉链布带层不会被水浸湿,增强了防水效果,但其防水作用基本上集中于布带层的防水,拉链链牙啮合处的防水问题并没有获得很好的解决,水还是可以通过链牙之间的啮合处进入衣物内部,导致不安全情况发生。后来有人又设计了在拉链牙缝隙间或包覆拉链牙的防水 ...
【技术保护点】
一种双层密封拉链,包括左、右密封布带,其特征在于,所述左密封布带的齿部设有第一链牙和上密封包覆胶层及下密封包覆胶层;所述右密封布带的齿部设有第二链牙和上密封包覆胶层及下密封包覆胶层;上下密封包覆胶层处有凸缘边;所述第一链牙和第二链牙在拉链拉合时相互匹配啮合;相对应的密封包覆胶层凸缘边在啮合拉链的拉力下相互顶紧达到密封效果。
【技术特征摘要】
1.一种双层密封拉链,包括左、右密封布带,其特征在于,所述左密封布带的齿部设有第一链牙和上密封包覆胶层及下密封包覆胶层;所述右密封布带的齿部设有第二链牙和上密封包覆胶层及下密封包覆胶层;上下密封包覆胶层处有凸缘边;所述第一链牙和第二链牙在拉链拉合时相互匹配啮合;相对应的密封包覆胶层凸缘边在啮合拉链的拉力下相互顶紧达到密封效果。2.根据权利要求1所述的拉链,其特征在于,所述左、右密封布带相对的侧面在相互压紧密封时,形成为自左右上密封包覆胶层凸缘边压合时的中间线位置与左右下密封包覆胶层凸缘边压合时的中间线对称分布于相互啮合链齿...
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