Airtight floor for civil aircraft

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Airtight floor for civil aircraft

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SUN LUYAN / YANG JINHAO / WANG QIANG / XU ZHICAI / XU YICHEN / ZHAO XIN

The invention discloses an airtight floor of a civil aircraft. The air-tight floor comprises a horizontal air-tight floor and an inclined air-tight floor, the horizontal airtight floor is partitionedinto a plurality of horizontal airtight sub-floors in the spanwise direction through a plurality of floor longitudinal beams extending in the heading direction. The oblique airtight floor is divided into a plurality of oblique airtight sub-floors in the unfolding direction through a plurality of floor longitudinal beams. The oblique airtight sub-floors comprise the two-side oblique airtight sub-floors located on the two sides in the spanwise direction and the middle oblique airtight sub-floors located between the floor longitudinal beams. The oblique airtight sub-floors on the two sides are fixedly connected with the floor longitudinal beams, the horizontal airtight sub-floors corresponding to the heading direction and the upper wall plate of the central wing, and the oblique airtight sub-floor in the middle is connected with the floor longitudinal beams, the horizontal airtight sub-floors corresponding to the heading direction and the upper wall plate of the central wing in the mode of being capable of moving relatively in the horizontal direction.

一种民用飞机的气密地板，包括水平气密地板和斜向气密地板，水平气密地板通过沿航向延伸的多根地板纵梁隔断而沿展向分割成多块水平气密子地板，斜向气密地板通过多根地板纵梁而沿展向分割成多块斜向气密子地板，多块斜向气密子地板包括位于展向两侧的两侧斜向气密子地板和位于多根地板纵梁彼此间的中间斜向气密子地板，两侧斜向气密子地板与地板纵梁、在航向上对应的水平气密子地板以及中央翼的上壁板固定连接，中间斜向气密子地板与地板纵梁、在航向上对应的水平气密子地板以及中央翼的上壁板以能够在水平方向上相对移动的方式连接。