Air inlet float valve for ocean robot

Abstract

The invention relates to an air inlet float valve for an ocean robot. An upper shell and a lower shell are connected in a sealed mode, the top of the upper shell is connected with an adjusting flange provided with an air inlet, and the bottom of the lower shell is connected with a breather pipe; an interior cavity defined by the upper shell and the lower shell is divided into an outer cavity and an inner cavity, and a floater is contained in the inner cavity and is in sliding connection with a lower shell guide rod arranged in the lower shell through a sliding bearing; the lower shell is provided with a head wave opening communicating with the inner cavity, and the outer cavity communicates with the air inlet; a floater guide rod which sleeves the lower shell guide rod and is in sliding connection with the lower shell guide rod through the sliding bearing is arranged on the floater in a penetrating manner, an air guide rod is arranged in the floater, an air hole for communicating the interior of the floater with the interior of the air guide rod is formed in the upper end of the air guide rod, the lower end of the air guide rod is mounted on the floater, a pressure relief hole is formed in the floater on the periphery of the lower end, and an upper sealing ring and a lower sealing ring are arranged on the outer surface of the floater. Two end faces are used for sealing, an air inlet flow channel is cut off from seawater, and the air inlet float valve is suitable for a folding type or a vertical type air inlet mast.

Description

technical field [0001] The invention belongs to the field of marine robots, in particular to an air intake float valve for marine robots, which is suitable for oil-electric hybrid marine robots, especially for fuel-powered marine robots that directly exchange gas with the outside world. Background technique [0002] For fuel-powered underwater unmanned robots, in poor sea conditions, the waves are easy to enter the intake pipe through the intake mast, and in severe cases, backflow may occur, resulting in major accidents such as damage to the diesel engine. The air inlet float valve can be closed when the air inlet is submerged by the waves to prevent backflow. The submarine air intake float valve only has a vertical lift state, and the air in the float compresses the air in the float by the sea water entering the float through the decompression hole as the diving depth of the submarine increases; after the submarine mast is raised, the air squeezes the sea water. When the f...

AI Technical Summary

Problems solved by technology

For the hybrid marine robot with folding mast, the submarine float is no longer applicable. After the mast is folded, it is placed horizontally, and the seawater can directly enter the inside of the float through the decompression hole; if the mast is raised, the water in the float will not be discharged smoothly, and the buoyancy of the float will be lost.

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