Seabed cable grabbing device and cable grabbing method

Abstract

The invention provides a seabed cable grabbing device. The device comprises a rack, wherein a counterweight device is arranged on the rack, a top power cylinder is arranged between the rack and the counterweight device, and the top power cylinder comprises a top rod cavity and a top rodless cavity; a grabbing device and a bottom power cylinder driving the grabbing device are arranged on the rack,wherein the bottom power cylinder comprises a bottom rod cavity and a bottom rodless cavity, and the top rodless cavity communicates with the bottom rodless cavity; and the top rod cavity communicateswith the bottom rod cavity. According to the scheme, the counterweight device is lifted, the bottom power cylinder drives the grabbing device to be closed to bag cables, then the rack is lifted to fish the cables out of a seabed ditch, and according to the scheme, the device is simple and compact in structure, simple to operate and good in fishing effect. According to a cable grabbing method provided, only an overall lifting steel wire rope and a counterweight device lifting steel wire rope need to be operated, the cables buried in a seabed can be fished, the operation is simple, and the fishing effect is good.

Description

technical field [0001] The invention relates to the technical field of seabed fishing equipment, in particular to a seabed cable grabbing device and a cable grabbing method. Background technique [0002] Nowadays, submarine cables and optical cables are widely used. In this plan, cables and optical cables are collectively referred to as cables. In order to protect the safety of cables, trenches are usually dug on the seabed when laying cables, and then the cables are buried in the trenches. Due to the problems of the cables themselves Or the effect of external force, the cable sometimes breaks down and needs to be repaired. Before the maintenance, the cable needs to be fished out from the groove on the seabed. [0003] In the patent document with the application number 201110276763.5 and the authorized announcement date being 2013.07.24, a deep-sea optical cable submarine shearing and fishing device is disclosed, including a shearing mechanism installed on the device frame, ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a submarine cable grabbing device, which solves the problem that complex mechanical structures, power systems and control devices need to be set up in the part of the salvage device in the prior art that dives into the seabed; the solution provides A submarine grabbing method with simple operation and good salvage effect

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