Deep-sea omni-directional movable TV (Television) grab bucket

Abstract

The invention discloses a deep-sea omni-directional movable TV (Television) grab bucket. The deep-sea omni-directional movable TV grab bucket comprises a rack, a propelling mechanism, an ultra-short base line locating mechanism, a three-point laser ranging mechanism, an underwater power supply mechanism, a sampling bucket body, a complete machine control mechanism, a hydraulic mechanism and a camera mechanism, wherein the rack comprises an upper rack and a lower rack; the upper rack and the lower rack are detachably connected; the propelling mechanism comprises four propellers. According to the deep-sea omni-directional movable TV grab bucket disclosed by the invention, through the matching of the propelling mechanism, the ultra-short base line locating mechanism and the three-point laserranging mechanism, equipment can be accurately located underwater, 360-degree horizontal movement in random direction can be realized through mutual cooperation of the four propellers according to calculated ground clearance and the size of a sample, and a sampling position is flexible and accurate; the upper rack and the lower rack are designed in a separable structure, the lower rack can be released by releasing an oil cylinder when the equipment encounters an accident at seabed, and successful recovery of the upper rack and main components is ensured.

Description

【Technical field】 [0001] The invention relates to the technical field of deep-sea detection equipment, in particular to a deep-sea omnidirectional mobile TV grab. 【Background technique】 [0002] The deep-sea TV grab system is one of the most important means for the environmental investigation and deep-sea sampling of mineral resources such as polymetallic nodules, cobalt-rich crusts, hydrothermal sulfidation, natural gas hydrates, and seabed rare earths in my country's oceans. The similar sampling equipment used mainly relies on imports. In 2003, with the support of the National High-tech Research and Development Program (863 Program), my country successfully developed the first deep-sea TV grab suitable for submarine cable observation and sampling in 6000m deep-water operations. In the past ten years, although the deep-sea TV grab has been updated and various technical indicators are becoming more and more mature, with the rapid development of domestic and international sci...

AI Technical Summary

Problems solved by technology

[0003] With traditional TV grabs, when sampling, the staff usually sinks the grab underwater to grab samples after pre-setting the target position on the sampling ship, but when the grab is lowered, the grab and the sampling ship will Impacted by ocean currents and wind waves, its normal release is affected, causing the position of the grab to shift, and the equipment can only be dragged by the sampling ship to move in a fixed direction under water, and the direction adjustment is inflexible; the seabed terrain is complex, when the equipment In the event of an accident on the seabed, when the bucket body is stuck by rocks, the connection between the dragging device and the grab bucket on the sampling ship will be subject to a greater test, which is easy to be damaged, the overall replacement and maintenance costs are high, and even the equipment will be lost.

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