Semi-automatic three-phase synchronous drop-out fuse

The invention relates to a semi-automatic three-phase synchronous drop-out fuse, and relates to electric power appliances. The fuse comprises three sets of bar-shaped ceramic column insulators 1, an installation plate assembly 2, an upper static contact assembly 3, an upper movable contact assembly 4, an arc extinction pipe 5, a fuse wire 6, a lower movable contact assembly 7, a lower static contact assembly 8, a connecting rod fixed clip 9, a connecting rod push rod 10, a drop-out buckle 11, a connecting rod 12, a link bar 13 with a hand grip and a windproof wind lock 14. In the semi-automatic three-phase synchronous drop-out fuse, structures of an upper movable contact, a lower movable contact, an upper static contact and a lower static contact are improved, and the service life of the fuse wire is prolonged, so that the fuse wire is durable in use; the fuse is provided with a fuse wire box and the windproof wind lock, a push-up three-phase automatic switching-in structure is simpler, more compact, easily a