Marine gravity sampling equipment for scientific investigation

Abstract

The invention relates to marine gravity sampling equipment for scientific investigation. The marine gravity sampling equipment comprises a gravity sampling tube, a transfer structure and a lifting mechanism, wherein the transfer structure comprises a bracket, a rotary hanging bracket and an auxiliary rotary hanging bracket; the rotary hanging bracket and the auxiliary rotary hanging bracket are respectively arranged at the left end and the right end of a ship board at the same side; the head part of a tumbler of the rotary hanging bracket is hinged with the head part of the bracket via a hanger; a hoisting winch is arranged at the tail part of the tumbler of the auxiliary rotary hanging bracket; a wire rope on the hoisting winch passes through a pulley at the head part of the tumbler and the hanger hinged with the tail part of the bracket; the lifting mechanism comprises an n-shaped hanging bracket and a winch; the n-shaped hanging bracket is arranged at the right side of the hanging bracket; the bottom of the n-shaped hanging bracket is hinged with a ship board deck along the direction of the ship board; the pulley is arranged at the head part of a cross arm of the n-shaped hanging bracket; the winch is arranged on a ship body behind the n-shaped hanging bracket; a mooring rope wound on the winch is connected with a lifting head of the gravity sampling tube via the pulley.

Description

technical field [0001] The invention relates to a sampling device for scientific research ships, in particular to a gravity sampling device for scientific research ships. Background technique [0002] Gravity sampling is a common equipment for sampling seabed cores. Its working principle is to generate gravitational potential energy at a predetermined height to impact the seabed rock formation, and the seabed core samples enter the sampling tube to obtain samples. Because the gravity sampling tube is a slender tube body, it is easy to cause the tube body to bend during the process of moving from the side of the ship to the water, and it is easy to cause the tube body to bend and sample inaccurately due to the angle tilt during the downstroke process of the sampling tube. Accurate roll-out, guiding and lifting devices are used together. Contents of the invention [0003] In order to solve the problems in the prior art that the pipe body is easy to bend...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems in the prior art that the pipe body is easy to bend when turning out and vertical sampling, the present invention provides a sampling device for scientific research ships that is accurate in sampling and not easy to be damaged during the sampling process.

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