A compound water belt, consisting of a tube wall composed of a lining plastic film, a braiding layer and an outer protective plastic film. The tube wall forms an inner lap section and an outer lap section at the top and the end of the circumference. The main feature is that the width of the lining plastic film is equal to the width of the braiding layer, and the width of the outer protective plastic film is equal to the width of the braiding layer. The width of the inner stick is smaller than the width of the inner lap section, the thickness of the inner stick is greater than the thickness of the inner lining plastic film, and the outer sticking strip is sticed to the outer edge of the outer lap section. The width of the outer stick is less than the width of the outer lap section. The thickness of the outer stick is greater than that of the outer protective plastic film. The length of the inner strip and the outer strip extends along the long direction of the composite water belt. The edge part of the lap joint of the utility model can effectively prevent seepage and does not need to increase the thickness of the inner lining plastic film.
【技术实现步骤摘要】
复合水带
本技术属于一种输水设备,具体涉及一种由多层材料复合而成的复合水带。
技术介绍
复合水带可以应用于农田灌溉、建筑业、采矿业输水、养殖业等领域的输水。复合水带一般包括有用编织层和内衬塑膜层,编织层由塑料扁丝或纱线经纬交织而成,具有较强的抗拉防裂性能,使水带能够承受较大水压;但由于编织层本身存在密集孔隙,为了防止水分从径向渗出,所以还必须至少在编织层的里面再复合上内衬塑膜层,在编织层外面复合有外防护塑膜层。传统复合水带的制造过程一般是先将编织层2和内衬塑膜层1、外防护塑膜层3复合在一起而成为复合管壁坯料,再将平面状的复合管壁坯料弯曲并首尾粘结搭接成为管状,首尾搭接后的管状管壁坯料称为管壁,图1所示,管壁包括搭接段和非搭接段43,搭接段包括外搭接段42和内搭接段41,其中搭接后位于外层的称为“外搭接段”,搭接后位于内层的称为“内搭接段”。传统复合水带存在以下不足:由于复合水带在使用过程中存在较高水压,而内搭接段的边沿部位的编织层直接与水流接触,加上编织层本身并不是一有机整体,而是由经线和纬线交织而成,编织层每两条相邻经线之间存在间隙,编织层每两条相邻纬线之间也存 ...
【技术保护点】
一种复合水带,包括由内衬塑膜层、编织层、外防护塑膜层复合而成的管壁,管壁在周向上首尾搭接而形成内搭接段和外搭接段,其特征在于:内衬塑膜层的宽度等于编织层的宽度,外防护塑膜层的宽度等于编织层的宽度;在内搭接段边沿的内侧还黏贴有内贴条,内贴条的宽度小于内搭接段的宽度,内贴条的厚度大于内衬塑膜层的厚度;在外搭接段边沿的外侧还黏贴有外贴条,外贴条的宽度小于外搭接段的宽度,外贴条的厚度大于外防护塑膜层的厚度;内贴条、外贴条的长向沿复合水带的长向延伸。
【技术特征摘要】
1.一种复合水带,包括由内衬塑膜层、编织层、外防护塑膜层复合而成的管壁,管壁在周向上首尾搭接而形成内搭接段和外搭接段,其特征在于:内衬塑膜层的宽度等于编织层的宽度,外防护塑膜层的宽度等于编织层的宽度;在内搭接段边沿的内侧还黏...
【专利技术属性】
技术研发人员:李达辉,
申请(专利权)人:汕头市光华机械实业有限公司,
类型:新型
国别省市:广东,44
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