Variable-sized skirt structure of hovercraft

Abstract

The invention provides a variable-sized skirt structure of a hovercraft. The hovercraft comprises the skirt structure and a retraction and extension mechanism, wherein the skirt structure comprises acurved rigid surface and a skirt bag; the curved rigid surface is connected to a hull; one side of the skirt bag is connected to the retraction and extension mechanism and the other side of the skirtbag is connected to the hull; an air passage is arranged in the middle of the curved rigid surface; the skirt bag is connected to an air chamber through the air passage; the air chamber is arranged inside the hull; the retraction and extension mechanism comprises a slideway, an airlock curve, a driving wheel and a driven wheel; one end of the airlock curve is connected to the slideway and the other end of the airlock curve is arranged at the connection of the driving wheel and the driven wheel; and the driving wheel is connected to a motor. The variable-sized skirt structure of the hovercraftcan change the size of a skirt through the retraction and extension mechanism so as to satisfy different working conditions. When the hovercraft sails on the sea in a water displacement manner, the skirt can be retracted to reduce the additional resistance of the skirt. When the hovercraft sails in a lift manner, the size of the skirt can be adjusted according to the sea conditions so as to achieve a better seakeeping performance. In the case of flying, the skirt can be retracted to reduce flight resistance.

Description

technical field [0001] The invention relates to a hovercraft, in particular to a volume-variable apron structure of the hovercraft, belonging to the field of hovercraft. Background technique [0002] Due to the excellent amphibious capabilities of air cushion ships / aircraft, they can play an irreplaceable role in other means of transportation in terms of forest fire fighting, water rescue, and economic development. Therefore, how to improve the rapidity, stability and multi-environmental adaptability of amphibious ships / aircrafts has become a research hotspot in recent years. The apron of conventional hovercraft is not retractable, and the additional resistance of the apron is large during displacement navigation; the volume of the apron is also variable, and cannot be adjusted according to sea conditions to achieve the best seakeeping during padded navigation. The apron of the hovercraft cannot be retracted into the fuselage during flight. When flying in the air, the exist...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a volume-variable apron for a hovercraft in order to solve the problems of poor seakeeping of the existing hovercraft / hovercraft when navigating at sea, large apron resistance when the hovercraft sails on the sea surface, and large apron resistance when the hovercraft flies in the air structure

Images