Underwater balance type barrel cover opening device

Abstract

The invention provides an underwater balance type barrel cover opening device which can effectively solve the problems of gravity and buoyancy balance, buoyancy loss and the like of a barrel cover before and after cover opening, and is not only suitable for a large underwater platform needing cover opening, but also suitable for a small underwater platform with high requirements for stability and balance. The underwater balance type barrel cover opening device comprises a barrel body opening part, a barrel cover assembly, a pressure equalizing assembly, an auxiliary cover jacking mechanism and a cover jacking and screwing composite mechanism. The barrel cover assembly covers the top opening of the barrel body opening part and is used for sealing the top opening of the barrel body opening part. The barrel cover assembly is in a zero-buoyancy state. The pressure equalizing assembly is used for realizing pressure equalizing inside and outside the barrel body opening part before the barrel cover assembly is opened. The auxiliary cover jacking mechanism and the cover jacking and screwing composite mechanism are respectively fixed on two opposite sides of the outer circumferential surface of the barrel body opening part. The cover jacking and screwing composite mechanism comprises a cover jacking assembly and a cover screwing assembly. The cover jacking assembly and the auxiliary cover jacking mechanism are used for upwards jacking or downwards pulling the barrel cover assembly. The cover screwing assembly is used for driving the barrel cover assembly to horizontally rotate for opening or closing.

Description

technical field [0001] The invention relates to a device for opening a cylinder cover, in particular to an underwater balanced cylinder cover opening device, which belongs to the technical field of underwater equipment. Background technique [0002] The canopy cover opening device is an important part of the underwater platform, which is mainly used to realize the opening and closing functions of the canopy cover before and after the payload inside the underwater platform enters the external seawater. For underwater platforms, openings are often the weak link for pressure and sealing. In order to ensure the pressure resistance performance, it is required that the cylinder cover must ensure sufficient structural strength, resulting in the weight of the cylinder cover is often relatively large. During the opening process of the canister cover, the center of gravity and the center of buoyancy of the canister cover are constantly changing, which will cause the small underwater ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the existing lid opening mechanism in the prior art, and provide an underwater balanced lid opening device, which can effectively solve the problems of gravity and buoyancy balance and buoyancy loss of the lid before and after opening, Not only suitable for large underwater platforms that need to be opened, but especially suitable for small underwater platforms that require high stability and balance

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