The invention discloses a cross foldable automatic retracting and spreading wing type sail. A first fixed pulley is fixed at the upper end of a multi-section main mast, a second fixed pulley is fixed at the right end of a top frame cross rod, and a third fixed pulley is fixed at the right end of a bottom frame cross rod. The left ends of an upper spring telescopic rod and a lower spring telescopic rod are fixedly connected with one corresponding frame cross rod respectively, and the right ends are fixedly connected with one corresponding sliding block in snap grooves respectively. A first sail body fixing mast is arranged close to the right of the multi-section main mast, the upper end of a second sail body fixing mast is fixedly connected with a first sliding block at the top, and the lower end of the second sail body fixing mast is fixedly connected with a second sliding block at the bottom. One end of a first pulling cable is fixedly connected with the lower end of the inside of a base, and the other end is fixedly connected with the first sliding block. One end of a second pulling cable is fixedly connected with the upper end of the inside of the multi-section main mast, and the other end is fixedly connected with the second sliding block. By means of the sail, the sail is driven to be spread and retracted automatically by using hydraulic lifting rods as power, and accordingly, the wind energy utilization rate is improved.


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    Title :

    Cross foldable automatic retracting and spreading wing type sail


    Contributors:
    LI DONGQIN (author) / ZHENG XIN (author) / XU SHIYOU (author) / LIU CUNJIE (author) / LI JI (author)

    Publication date :

    2015-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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