Unloading type sinking rescue device of subsea mining vehicle and use method thereof

An unloading type sinking rescue device of a subsea mining vehicle, comprising an assembly support, an unloading system, an ejection system and a control system;

• wherein
• the assembly support is box-shaped, fixed to the subsea mining vehicle, and provided with a plurality of enclosed cavities;
• the unloading system, the ejection system and the control system are arranged on the assembly support;
• the unloading system comprises a counterweight, a counterweight cable, a counterweight fixing bracket and a counterweight recovery cavity;
• wherein
• four counterweight recovery cavities are arranged at four corners of the assembly support;
• the counterweight winding shaft and the counterweight fixing bracket are arranged in the counterweight recovery cavity;
• the counterweight winding shaft is connected to the counterweight through the counterweight cable;
• and
• the counterweight is configured to be stored in the counterweight recovery cavity;
• the ejection system comprises an anchor, an ejection cavity, an anchor cable, an anchor recovery shaft, a pulley, a spring and a boosting device;
• wherein
• the anchor comprises two anchor plates and an anchor controller, wherein the two anchor plates are provided with built-in electromagnets;
• first ends of the two anchor plates are movably connected by an anchor shaft, and the anchor controller opens and closes the built-in electromagnets, wherein the two anchor plates rotate around the anchor shaft to open and close;
• second ends of the two anchor plates are respectively provided with a barb;
• three ejection cavities are respectively arranged at front, left and right sides of the assembly support;
• the anchor recovery shaft, the spring and the boosting device are arranged in the ejection cavity;
• the anchor recovery shaft is connected to the anchor shaft on the anchor through the anchor cable;
• the anchor is configured to be stored in the ejection cavity;
• and
• the pulley is provided at an edge of the ejection cavity;
• and
• the control system controls an operation of the unloading system and the ejection system.