1, multifunctional inflatable bag

It is suggested that the factory produce an inflatable bag. When not in use, let out air and fold it. When in use, it can be inflated, not only as a bag, but also as a lifebuoy when swimming; When resting, it can also be used as a cushion; It can be used as a pillow when sleeping.

2. Three compasses

When learning mathematics, we often use rulers, compasses and so on. The general pencil case is relatively small, so it can't hold a lot of stationery, and the plastic ruler is easy to break. It is suggested that the stationery factory change the dual-purpose compasses into three-purpose compasses. In other words, the feet of the compasses are made thin and straight, and the length is engraved. In this way, compasses can be used to draw circles and parallel lines, and can also be used as rulers.

3. Removable windows

Living upstairs, cleaning windows is a dangerous thing. It would be much more convenient if the windows were fitted with detachable hinges as shown in the figure. The shaft of this hinge is only fixed on the upper page and can be pulled out from the shaft hole on the lower page. Open the window and gently lift it up and take it off. Clean the glass before putting it on. There is no need to climb the windowsill and lean out of the window to take risks.

4. Lunch box with spoon clip

When you bring rice with a lunch box, you often forget to bring a spoon. The rice spoon clattered in the empty rice basin. If you put two aluminum clips on the lid of the lunch box and hold the spoon, the problem will be solved.

5. Creative dolls

Material preparation: egg shell, colored cards, colored pens, stickers, scissors, glue and decorations.

Production steps:

Step 1: Cut the colored cards into petals with scissors, and then stick them into small hats.

Step 2: After the eggshell is dried, draw the doll's eyes, nose and mouth on the eggshell with colored pens, or draw a playful moustache.

Step 3: After the paint dries, put a sticker on the surface of the egg to make clothes for the doll, and the ordinary egg will become a cute little doll!

6. Square funnel

The lower end of the funnel is usually round. When using this funnel to fill bottles with water or other liquids, it is often necessary to lift the funnel so that there is a gap between the funnel and the bottle mouth. Otherwise, bubbles will pop up and the liquid will flow slowly or even fail.

If the lower end of the funnel is changed to a square, when the liquid is put into the bottle, the gas in the bottle will flow out along the gap of the bottle mouth, so there is no need to lift the funnel.

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