An inflatable air film structure based on pneumatic power rotation, comprising:
- an inflatable main structure body (1), the inflatable main structure body (1) being enclosed by a flexible and airtight first fabric, a first accommodating cavity being formed inside the inflatable main structure body (1), and an air intake structure for communicating with an external blower (7) being arranged on a wall surface of the inflatable main structure body (1);
- an inflatable rotating air film member (3), the inflatable rotating air film member (3) being enclosed by a flexible and airtight second fabric, a second accommodating cavity being formed inside the inflatable rotating air film member (3), and a wall surface of the inflatable rotating air film member (3) being disposed with at least one air mold air hole (2) as a source of exhaust thrust;
- an exhaust direction of the air mold air hole (2) being set to have a deflection angle with a radial plane passing through a central rotation axis, and ensuring that airflow discharged from the air mold air valve (2) can generate an effective rotational driving torque;
- and a plurality of air mold air holes (2) being disposed on the inflatable rotating air film member (3), and the exhaust direction of all the air mold air holes (2) being uniform;
- and
- a rotating assembly, the rotating assembly being mechanically connected between the inflatable main structure body (1) and the inflatable rotating air film member (3) and fluidly communicating the first accommodating cavity and the second accommodating cavity, the rotating assembly being used to support the inflatable rotating air film member (3) to rotate relative to the inflatable main structure body (1), and the rotating assembly comprising:
- a fixing component, the fixing component being fixedly mounted to a wall surface of the inflatable main structure body (1) and configuring a first airflow passage through which an airflow is drawn out from the first accommodating cavity;
- a rotating component, the rotating component being fixedly mounted to a wall surface of the inflatable rotating air film member (3) and configuring a second airflow passage for introducing airflow into the second accommodating cavity;
- and
- a rotary connection mechanism, the rotary connection mechanism being used for enabling the rotating component to rotate around a preset central rotating axis relative to the fixing component;
- pressurized airflow supplied by the blower (7) entering the first accommodating cavity through the air inlet structure, part of the pressurized airflow sequentially flowing through the first airflow passage and the second airflow passage to enter the second accommodating cavity to inflate and form the inflatable rotating air film member (3), and finally the part of the airflow being ejected from the air mold air holes (2) at high speed;
- and the tangential reaction torque generated when the airflow is ejected being utilized to drive the inflatable rotating air film member (3) and the rotating component fixed to the inflatable rotating air film member (3) to continuously rotate around the central rotating axis.