原物品存在的问题:现在商店、银行等公共场所存放硬币的零钱罐(盒)通常都比较大,而且零钱都散放在里面,钱数不能一目了然;移动时还哗哗地响,也不易携带。新物品的结构和特点:我发明的管式零钱罐,材料为透明塑料。如图,存钱时, Problems with the original items: Nowadays, change boxes (boxes) for storing coins in public places such as shops and banks are usually relatively large, and change is scattered in them. The amount of money cannot be seen at a glance; it is also loud when moving and it is not easy to carry. . The structure and features of the new items: The tube change jar I invented is made of transparent plastic. As shown in the figure, when saving money,