The invention provides a telescopic sail device. The telescopic sail device comprises a central telescopic mast, a telescopic sail airfoil and a rope driving assembly. The central telescopic mast is formed by cascading and nesting multiple stages of hollow rectangular cylinders, and axial stretching movement can be achieved. The telescopic sail airfoil is formed by cascading and nesting a plurality of curved-surface-shaped sails, and each stage of sail is fixedly connected with the corresponding hollow rectangular cylinder and extends in the axial direction along with the hollow rectangular cylinder. The rope driving assembly is mainly composed of a winding reel, a rope and a pulley, reciprocating arrangement of the rope between the rectangular barrels is achieved through the pulley, and the rope is wound on the winding reel to drive the whole sail device to stretch in the axial direction. When the whole sail device is completely unfolded, the axial length is large, and a large windward side can be obtained; during complete folding, the central mast and the sail airfoil are compactly folded, the windward area is small, and the folding size is small. In addition, the single-stage rectangular cylinders and the corresponding sail airfoils can serve as module units to be axially expanded, and the sail device with the larger axial length and the larger windward area can be obtained.
本发明提供一种伸缩风帆装置,包括:中心伸缩桅杆、伸缩风帆翼面和绳驱动组件。中心伸缩桅杆由多级中空矩形筒级联嵌套组成,可以实现轴向的伸展运动。伸缩风帆翼面由多个曲面状风帆级联嵌套组成,各级风帆与对应的中空矩形筒固定连接,随之沿轴向伸展。绳驱动组件主要由绕线筒、绳索及滑轮组成,通过滑轮实现绳索在各级矩形筒之间的往复排布,绳索在绕线筒上缠绕驱动整个风帆装置沿轴向伸展。整个风帆装置完全展开时,轴向长度较长,可以获得较大的迎风面;完全收拢时,中心桅杆和风帆翼面紧凑折叠,迎风面积小,收拢体积小。此外,可以将单级矩形筒和对应的风帆翼面作为模块单元,进行轴向扩展,可以获得轴向长度更长、迎风面积更大的风帆装置。
Telescopic sail device
伸缩风帆装置
2024-12-27
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Ecological sailing craft carries solar cells on telescopic sail elements
Online Contents | 1994