An anti-g suit with pressure adaptive gradient change

Abstract

The invention discloses an anti-G suit with pressure self-adaptive gradient change, comprising an abdominal bag, a thigh bag, a calf bag, an acceleration sensing reversing unit, and a controller. The valve is set between the abdominal bag and the external pressurized gas, the abdominal bag, the thigh bag and the calf bag are connected in sequence, the second pressure proportional valve is set between the abdominal bag and the thigh bag, and the third pressure proportional valve is set between the thigh bag and the calf bag. The pressure proportional valve and the calf bag are connected with an air outlet, and the air outlet can communicate with external pressurized gas. The invention uses the acceleration sensor to sense the nature and magnitude of the acceleration, and controls the flow and direction of the air pressure input according to the acceleration. On the one hand, the user does not need to bear a high level of pressure when the overload is low, and the body's tolerance time for overload is improved; on the other hand. According to different overload directions, the corresponding pressure direction can be automatically selected, which improves the human body's tolerance to overload.

Description

technical field [0001] The invention relates to the technical field of aviation protective equipment and its surrounding supporting facilities, in particular to an anti-G suit with pressure adaptive gradient change. Background technique [0002] During aerospace flight, flight personnel will encounter a variety of special mechanical environments, and the loads acting on the human body in this environment have a great impact on the safety of the occupants. In order to ensure the health and safety of the occupants during the flight, the development of protective equipment is particularly important. [0003] When the spacecraft is launched, landed, or turns at variable speeds, it will generate a large acceleration, which will lead to uneven distribution of blood in the pilot's body. For example, when the plane accelerates to ascend, the blood will transfer to the lower limbs, resulting in insufficient oxygen supply to the pilot's brain, which may seriously cause black vision, ...

AI Technical Summary

Problems solved by technology

[0007] However, there are still problems in the above-mentioned prior art: (1) the pressure ratio is a fixed value, which is not high enough for pilots of different sizes; (2) the internal pressure of the airbag of the lower limbs is still the internal pressure of the side tube; Protection of occupants with acceleration in different directions

Images