Low-noise trepanning and sinking device suitable for underwater unmanned system

Abstract

The invention discloses a low-noise trepanning and sinking device suitable for an underwater unmanned system, and belongs to the technical field of underwater operation appliances. The device comprises a mounting seat, a bearing ring, a wedge-shaped trepanning mechanism, a lever limiting mechanism and the like. The device is installed on the surface of an underwater unmanned system sealing shell,and it can be ensured that the interior of the underwater unmanned system sealing shell is isolated and sealed from the external seawater environment before action; and after the trepanning action isexecuted, a water inlet hole with the diameter of 130 mm (the diameter of the piston body is 130 mm) can be formed in the surface of the underwater unmanned system, and seawater is poured into the unmanned system through the water inlet hole, so the underwater unmanned system sinks and is self-destroyed.

Description

technical field [0001] The invention relates to the technical field of underwater working tools, in particular to a low-noise sinking device suitable for underwater unmanned systems. Background technique [0002] In underwater engineering, unmanned aerial vehicles and preset weapons usually use opening sinking devices to adjust the cabin drainage volume at a specific moment, change the system weight parameters, and achieve the expected underwater purpose: the arrival of self-propelled preset weapons After the target area is separated and deployed, moored and anchored, and submerged at the bottom, the power propulsion section that has completed the mission will be submerged in water through the hole sinking device, and used as a ballast mooring system; the underwater unmanned vehicle sails to the target After the area, it is necessary to dump some of the equipment that has completed its mission, such as the buoyancy cabin. In order to avoid exposing the location of the submer...

AI Technical Summary

Problems solved by technology

[0003] The conventional method of opening the sinking device uses pyrotechnic blasting on the weak link of the seal, causing damage to the shell and water ingress; in order to meet the structural strength, the diameter of the opening in this method is generally not greater than 65mm, and the water inflow speed is slower after opening the hole

For a relatively large positive buoyancy system, the water intake time is relatively long, and there may be a risk of the positive buoyancy system surfacing to expose the target; at the same time, the opening process is very noisy due to the deflagration and detonation of the pyrotechnics. Underwater unmanned systems that approach the target area, quietly enter the working state, and secretly carry out underwater work cannot meet the mission requirements.

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