全能扫帚山东省章丘市第四中学高二李鑫宇在打扫房间时,墙面死角总让人手足无措,尤其是成直角的墙角,不仅灰尘难以扫干净,而且打扫上墙角时灰尘易落入眼中。所以,我想发明一个既能防尘又能清扫墙角的全能扫帚。在伞面上安装一把立体三角锥状的扫帚,扫帚有一个角是直角,专门清理墙角,伞可用来遮挡灰尘。伞与扫帚可拆分,拆分后雨伞可照常使用,有直角的扫帚也可清理下墙角。(指 Almighty broom Zhangqiu City, Shandong Province fourth high school Li Xinyu sophomore when cleaning the room, the wall dead always let people know what to do, especially at right angles to the corner, not only difficult to sweep the dust clean, and clean the wall when the dust easily fall into the eyes. So, I want to invent a versatile broom that can both defend against dust and clean the corner. A three-dimensional pyramid-shaped broom is mounted on the canopy. A corner of the broom has a right angle to clean the corner, and the umbrella can be used to cover the dust. Umbrellas and brooms can be split, split the umbrella can be used as usual, right angle brooms can also be cleaned under the corner. (Referring to