Anti-falling drop-out fuse

The utility model provides an anti-falling drop-out fuse which comprises an insulator and a fusion tube, the top end of the insulator is connected with the fusion tube through an upper support, the bottom end of the insulator is connected with the fusion tube through a lower support, and a locking device is arranged between the fusion tube and the lower support. The device is simple in structure, effectively prevents the fuse tube from rotating and falling off when the fuse is fused, prevents the fuse tube from falling off and being lapped to an iron tower or a cable to cause a dangerous situation, improves the normal working time of a power transmission line terminal iron tower, and avoids electric quantity loss. 本实用新型提供了一种防掉落的跌落式熔断器，包括绝缘子和熔管，所述绝缘子的顶端通过上支架与所述熔管连接，所述绝缘子底端通过下支架与所述熔管连接，所述熔管和所述下支架之间设置有锁紧装置。本实用新型结构简单，有效防止熔丝熔断时熔管转动掉落，避免了熔管落下搭接到铁塔或电缆发生危险情况，提高输电线路终端铁塔的正常工作时间，避免电量损失。