A kind of underwater dynamic cable buoyant mass fixing device and its application method

The present invention relates to a kind of underwater dynamic cable buoyant mass fixing device and its application methods, it is characterised in that：It includes buoyant mass and underwater dynamic cable clamping device；Buoyant mass includes the upper and lower two buoyant mass float being oppositely arranged, and a underwater dynamic cable fixed groove is respectively arranged in the middle part of the opposite face of two buoyant mass floats, underwater dynamic cable clamping device fixed card slot is provided in the middle part of two underwater dynamic cable fixed grooves；Underwater dynamic cable clamping device includes an expansible underwater dynamic cable clamping band, two expansible clamping fastener bands and two fastening bolts, is provided in the middle part of underwater dynamic cable clamping band outer surface for fixing bulge loop with the float of two buoyant mass float grafting；Float fixes bulge loop both sides and two clamping fastener bands is fixedly installed, and the end of two clamping fastener bands is fixedly connected by two fastening bolts so that underwater dynamic cable clamping band inner surface fixation is disposed around underwater dynamic cable outer surface.The present invention can be widely applied in underwater dynamic cable buoyant mass fixation.