An active pressure relief device applied to ship anti-collision airbags

Abstract

The invention discloses an active pressure relief device applied to an anti-collision airbag of a ship, comprising a soft exhaust port and a pressure limiting assembly. Wherein the soft exhaust outletis centered directly below the pressure limiting assembly, and the soft exhaust outlet is seamlessly connected with the airbag main body; A limit assembly includes a base, A low surface of that baseis welded to the surface of the airbag body, the upper surface of the base is horizontally attached to the sealing groove of the lower surface of the orifice mask, A surface of that seal groove is embedded with an embedded electromagnetic lock, At that bottom end of the seal groove, The hole shutter is circular, one side of the hole shutter edge is connected with a fixed hinge support through a pin, and can rotate in a vertical plane around the pin; the fixed hinge support is welded on the upper surface of the base; return springs are arranged on both sides of the fixed hinge support, and thereturn springs vertically connect the lower surface edge of the hole shutter with the base. The pressure relief device designed by the invention can prolong the cushioning process time of the airbag,and can precisely control the airbag to start exhausting at a certain specific pressure value, so that the working performance is stable and the reliability is high.

Description

technical field [0001] The invention belongs to the technical field of ship anti-collision, and in particular relates to an active pressure relief device applied to a ship anti-collision air bag. Background technique [0002] In recent years, due to its simple structure, easy folding, good working performance, and convenient production and processing, airbags have played an increasingly important role in both military and civilian fields, such as airdrop protection for heavy equipment, ship applications, and earthquake resistance. Disaster relief and other fields. According to the cushioning mechanism, airbags can be divided into airtight airbags and exhaust airbags. Airtight airbags rely on the compressed flow of gas inside the airbag to absorb kinetic energy. Larger, and the exhaust airbag can attenuate the energy after one buffer, which has the advantage of lighter weight while greatly improving the buffer efficiency, so it is widely used. For the exhaust type cushion a...

AI Technical Summary

Problems solved by technology

However, the current exhaust port control device has a complex structure and low reliability, which needs to be further improved

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