DEVICE FOR MAKING UNDERWATER WORKS Russian patent published in 2017 - IPC E02F5/10 B63B35/04 H02G1/10 

FIELD: mechanical engineering.

SUBSTANCE: invention is relevant to communication-cable laying and making other construction works under water. The device includes above-water part in the form of flat-bottomed boat provided with operator board, combustion engine and source of electric power, and underwater part in the form of caterpillar undercarriage equipped with the system of electrically-controlled hydraulic drive and provided with rear-fastened operating element intended for trenching and cable laying into dug trench. The said operating element is provided with hydraulic drive and hydraulically-driven front-fastened moldboard. At that, underwater device part is connected to electric-power source and to operator board with the aid of electric control cable. It is also provided with coil of laid cable. When being transported overland, above-water part is fastened to underwater part with the aid of quick-split connection, and is equipped with floated balloons along outer perimeter for holding itself on water. Suitable-for-rotation coil of laid cable is fastened to moldboard, above-water- and underwater parts are additionally connected against each other with the aid of ropes and bundle of high-pressure sleeves for supplying working liquid from hydraulic pumps of above-water part to system of hydraulic control of caterpillar undercarriage and of hydraulic drive of operating elements. At that the mentioned bundle of high-pressure sleeves is laid together with electric cable on suitable-for-rotation drum fastened to underwater part.

EFFECT: device is provided with expanded technological functions, capable to move with the aid of own driving force to the site for making works in position, when its above-water and underwater parts are jointed one with another (self-driving), and execute its tasks without return to production base during at least 24 hours.

13 cl, 13 dwg