The utility model discloses a strainclamp anti off reserve fittings, the strainclamp anti off reserve comprises a U type ring, fitting the inner sleeve and the outer sleeve, on both ends of the U type ring has an external screw thread, the inner sleeve and outer sleeve is sheathed outside the inner sleeve, when in use installed in strainclamp near the conductor, the inner sleeve is composed of two semicircular structure, the inner diameter is equal to the outer diameter of the wire, the coat consists of 2.5 pieces, each half piece comprises a semi cylindrical, in semi cylindrical openings distributed on both sides of the lug lug, along the axial direction of the semi cylindrical lug 2.5 interval distribution the staggered arranged in 2.5 cylindrical closure, the lug is provided with a through hole, half pieces closure through hole lug on the link, the inner diameter is equal to half a piece of semi cylindrical sleeve diameter, when both ends of U pull through coat lug nut Locking. The utility model has the advantages of reasonable design, convenient carrying and installation, small labor intensity in operation process, little personnel needed and high labor efficiency.
【技术实现步骤摘要】
耐张线夹防脱后备金具
本技术涉及一种防护装置,特别是一种耐张线夹防脱后备金具。
技术介绍
运行线路中的导线压接管,因液力压接成型时施压不足、模具变形没达到应有的压缩比,或因新旧导线接续、净化工作不到位、耐张线夹引流板螺栓紧力不足等问题,易发生压接管抽线、断裂、发热烧伤导致导线落地,线路中止供电。特别是跨越高速铁路、公路、轨道交通及市政重要设施的输电线路耐张型压接管,一旦断裂将会引发一系列严重的次生危害。目前的防护措施大都通过加装预绞式全张力线夹(预绞式全张力接续条)方式进行补强,且有足够握紧力。但因其结构复杂、长度长,要在有电线路耐张压接管处采用等电位帯电安装很不方便。
技术实现思路
本技术的目的在于克服现有技术的不足之处,而提供一种既牢固又轻巧,既可有效解决耐张导线压接管故障断裂时也不会发生掉线及中断供电问题,也能在高空带电安装时更加便捷安全的耐张线夹防脱后备金具。一种耐张线夹防脱后备金具,包括有U型拉环、内套、外套,在U型拉环的两端部设置有外螺纹,所述的外套套在内套之外,在使用时内套安装在耐张线夹附近导线上,内套由两个半圆构成,其内径等于导线外径,外套由两个半片构成,每个半片括有半圆柱,在半圆柱的开口两侧分布有凸耳,凸耳沿半圆柱的轴线方向间隔分布,两个半片的凸耳在两个半圆柱合拢时呈交错排列,其中一片半片的凸耳嵌入另一片半片的两凸耳之间的间隔中,在凸耳上设置有通孔,两半片合拢时凸耳上的通孔相贯通,半片半圆柱的内径等于内套的外径,工作时U型拉环的两端穿过外套的凸耳,用螺母锁紧。本技术的耐张线夹防脱后备金具,在使用时,U型拉环后部套穿入导线耐张压接管钢锚环,前端的两 ...
【技术保护点】
一种耐张线夹防脱后备金具,其特征在于:所述的耐张线夹防脱后备金具包括有U型拉环、内套、外套,在U型拉环的两端部设置有外螺纹,所述的外套套在内套之外,在使用时内套安装在耐张线夹附近导线上,内套由两个半圆构成,其内径等于导线外径,外套由两个半片构成,每个半片括有半圆柱,在半圆柱的开口两侧分布有凸耳,凸耳沿半圆柱的轴线方向间隔分布,两个半片的凸耳在两个半圆柱合拢时呈交错排列,其中一片半片的凸耳嵌入另一片半片的两凸耳之间的间隔中,在凸耳上设置有通孔,两半片合拢时凸耳上的通孔相贯通,半片半圆柱的内径等于内套的外径,工作时U型拉环的两端穿过外套的凸耳,用螺母锁紧。
【技术特征摘要】
1.一种耐张线夹防脱后备金具,其特征在于:所述的耐张线夹防脱后备金具包括有U型拉环、内套、外套,在U型拉环的两端部设置有外螺纹,所述的外套套在内套之外,在使用时内套安装在耐张线夹附近导线上,内套由两个半圆构成,其内径等于导线外径,外套由两个半片构成,每个半片括有半圆柱,在半圆柱的开口两侧分布有凸耳,凸耳沿半圆柱的轴线方向间隔分布,两个半片的凸耳在两个半圆柱合拢时呈...
【专利技术属性】
技术研发人员:冯振波,孙鑫茂,吴晓杰,李德疆,蔡金林,林立霏,卓晗,陈超,
申请(专利权)人:国网福建省电力有限公司,国家电网公司,国网福建省电力有限公司福州供电公司,上海申坚工贸有限公司,
类型:新型
国别省市:福建,35
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