Multi-stage airbag cooperative buffering seat for airborne occupant

Abstract

The invention discloses a multi-stage airbag cooperative buffering seat for an airborne occupant. The seat comprises an upper air chamber, a middle air chamber and a lower air chamber which are stacked from top to bottom; the upper air chamber can discharge air and release pressure through an air discharge valve of the upper air chamber and also discharge air to the middle air chamber through a first combined air discharge valve, and the middle air chamber expands to achieve first-stage buffering; the middle air chamber can discharge air and release pressure to the exterior through an air discharge valve of the middle air chamber and also discharge air to the lower air chamber through a second combined air discharge valve, and the lower air chamber expands to achieve second-stage buffering; the lower air chamber can discharge air and release pressure to the exterior through an air discharge valve of the lower air chamber to achieve third-stage buffering. Through multi-stage buffering of the multi-stage airbag cooperative buffering seat, not only can secondary collision between the human body and chariot interior parts be prevented, but also the multi-stage release of pressure in the airbag buffering seat can be achieved, the airbag buffering seat is prevented from being blasted, and therefore safe landing of the airborne occupant is effectively ensured.

Description

technical field [0001] The invention relates to the field of safety protection for manned airborne landing, in particular to a multi-stage airbag cooperative cushioning seat for airborne occupants. Background technique [0002] Manned airborne means that the airborne combat vehicle and the crew are airborne at the same time. Since the airborne occupants will bear the huge impact load on the ground at the moment of landing, in order to ensure the safe landing of the airborne occupants, occupant protection devices must be used to reduce the damage to the human body caused by the impact load. A large number of practices have shown that good occupant protection devices can greatly reduce occupant injuries and reduce mortality. Therefore, airborne occupant protection device is the top priority of airborne technology research. As an overall protective device, the airborne crew safety seat can effectively reduce the damage to the occupant caused by the impact load, and avoid seco...

AI Technical Summary

Problems solved by technology

However, during the cushioning process of manned airborne landing, if the airbag cushion seat exhaust hole is too large, it will not be able to effectively cushion and protect the human body, which will easily cause a secondary collision between the human body and the interior of the tank; if the airbag cushion seat exhaust If the hole is too small, it is easy to cause the airbag to burst due to the sharp increase in the internal pressure of the airbag cavity and the slow exhaust speed, which will cause fatal damage to the airborne occupants

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