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在老师的指导下,我用生活中某些废物制成可节省二十几元且柔韧耐用的“帕斯卡球”。材料“金鱼”洗涤灵塑料瓶1个;500毫升“蜂花”护发素塑料瓶瓶盖1个;28型自行车12号废辐条一根和螺帽2个;“娃哈哈”塑料瓶1个。制法用铅笔刀尖从洗涤灵瓶下部的凸棱下边把瓶截开,圆筒瓶身即为帕斯卡球的卿筒;在圆台形瓶底的底面中心开与辐条直径相同的孔(Φ=2.5mm),并把瓶底周围上方适量地剪掉一圈,使它的粗端与唧筒的内径近似,作为唧筒的活塞;在护发素瓶盖中心开与辐条同径的孔,作为唧筒的端盖;把辐条无螺纹的一端弯成φ30mm圆环,作为唧筒的连杆和手柄;把端盖反穿在连杆上,之后用螺
Under the guidance of the teacher, I made a “pascal ball” that could save twenty yuan and be flexible and durable by using certain waste from my life. Material “Goldfish” washing spirit plastic bottle 1; 500ml“ bee flower” conditioner plastic bottle cap 1; 28 type bicycle 12th waste spoke and nut 2; “Wahaha ”One plastic bottle. The method uses a pencil sharpener to cut open the bottle from the underside of the convex edge of the lower part of the washing bottle. The cylindrical bottle is the clear cylinder of the Pascal ball; the hole with the same diameter as the spoke is opened in the center of the bottom surface of the round bottle-shaped bottle bottom (Φ= 2.5mm), and cut a circle around the bottom of the bottle in an appropriate amount, so that its thick end is similar to the inner diameter of the bowl, as the piston of the bowl; in the center of the bottle of the conditioner, the hole with the same diameter as the spoke is used as the bowl. The end cap; the unthreaded end of the spoke is bent into a φ30mm ring as the connecting rod and handle of the stirrup; the end cap is reversed on the connecting rod, and then the screw is used.