Secondary unlocking type helicopter emergency floating bag

Abstract

The invention discloses a secondary unlocking type helicopter emergency floating bag which comprises a floating bag body, an upper connecting belt, a secondary unfolding belt and a lower connecting belt, the floating bag body is arranged on one side of a hanging point of a helicopter, the two ends of the upper connecting belt are connected with the hanging point of the helicopter and the upper end of the floating bag body respectively, and the two ends of the secondary unfolding belt and the two ends of the lower connecting belt are connected side by side; the two ends of the secondary unfolding belt and the two ends of the lower connecting belt are connected with the helicopter hanging point and the lower end of the floating bag body, and the lower connecting belt is provided with an unlocking mechanism. According to the secondary unlocking type helicopter emergency floating bag, the buoyancy center of the buoy can be automatically raised during landing without adding a traction mechanism on the fuselage, and meanwhile, the complex mounting requirements of the helicopter can be met, so that the technical problems that the helicopter is easy to overturn during landing and the mounting environment is complex are effectively solved.

Description

technical field [0001] The invention specifically relates to a two-stage unlocking helicopter emergency floating bag. Background technique [0002] When the helicopter is flying in the sea, if there is a failure and the emergency landing is required, the emergency airbag is required to provide buoyancy for the helicopter, thereby providing sufficient escape time for the pilot, thereby improving the efficiency of rescue. [0003] The emergency airbag is installed in the exposed area of ​​the helicopter, which is often unable to provide sufficient righting moment due to the limitations of the fuselage frame structure, weapon pylon, radar antenna and other factors. Therefore be badly in need of a kind of two-stage unlocking mechanism, can satisfy the complex installation of helicopter and use requirement, can realize the safe landing of helicopter again without overturning. Contents of the invention [0004] The technical problem to be solved by the present invention is to p...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a two-stage unlocked helicopter emergency buoyant bag for the above-mentioned defects in the prior art, which can automatically raise the buoyancy center of the buoy when it hits water without adding traction to the fuselage At the same time, it can meet the complex installation requirements of helicopters, effectively solving the technical problems of helicopters being forced to land on water, easy to overturn and complex installation environment

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