Underwater quick unhooking device

Abstract

The invention discloses an underwater quick unhooking device, and relates to the technical field of underwater hoisting, in particular to a quick unhooking device of underwater hoisting equipment. The top end of a hook body structure is fixedly arranged at the bottom of a lifting lug; one end of the lock hook structure is connected with the hook body structure in a hinged manner; and the other end of the hook body structure can be locked with the hook head of the hook body structure to form a closed structure. The top end of the fixing mechanism of the hook body structure is fixedly connected with the bottom end of the lifting lug; one end of the amplitude-variable mechanism is connected with the bottom end of the fixing mechanism in a hinged mode. The fixing mechanism and the amplitude-variable mechanism form a complete structure shape. A hook buckle of the lock hook structure is of a long-strip-shaped hollow structure. One end of the lock catch is connected with the fixing mechanism in a hinged mode, and the other end of the lock catch is connected with the lock catch in a hinged mode. According to the technical scheme, the problems of long underwater operation time and low efficiency of divers in the prior art are solved; potential safety hazards exist due to dense rigging; and the risk of operation under the hanging beam and operation of divers is high.

Description

technical field [0001] The underwater quick decoupling device of the invention relates to the technical field of underwater hoisting, in particular to a quick decoupling device of underwater hoisting equipment. Background technique [0002] In marine engineering, the intersections and expansion bends of submarine pipelines that cannot be trenched are usually covered by hanging cement blocks to prevent them from being exposed above the mud surface and being scoured by ocean currents. Due to the special form of the cement briquette, a special hoisting beam is used for hoisting. In order to ensure the stability and structural strength of the cement briquette, there are usually very dense lifting points during hoisting. When the cement blocks are placed in place, the diver needs to remove all the lifting points underwater to complete the placement of a cement block. This method of operation has the following disadvantages: First, due to the large number of lifting points, the di...

AI Technical Summary

Problems solved by technology

When the cement briquette is placed in place, the diver needs to remove all the lifting points underwater to complete the placement of a cement briquette. This method of operation has the following disadvantages: First, due to the large number of lifting points, the divers are underwater The operation time is long and the efficiency is low; the second is that the rigging between the lifting points is dense, and divers are prone to the risk of umbilical cord entanglement during underwater operations, which has certain safety hazards; Hovering in the water, there is a certain risk for divers to work under the suspension beam

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