There are many types of water cups, including stainless steel, plastic, glass, etc. There are also many types of water cups with flip-top lids, screw-top lids, sliding lids and straws. Some friends have noticed that some water cups have straws. There is a small ball under the straw, and some don’t. What’s the reason?
Straw cups are used to facilitate people’s drinking. In the early days, they were only used on plastic cups, and now they are used on cups made of various materials. I don’t know if you have noticed that more children’s water cups have small balls at the bottom, while adult water cups do not have small balls at the bottom.
The small ball is a reverse device, and its internal structure is a combination of gravity and pressure. When the user is not drinking, there will be no leakage caused by tilting it upside down or other angles. Therefore, most drinking straw cups with reverse devices are used by children. Children are physically fit, hyperactive, and have not developed habits of placing objects, etc., so when using the water cup, it is easy for the water cup to tip over. What is more serious is that children lie down with a straw in their mouths. , if there is no reverse device, it is easy for the water cup to flow back and choke the children. Before the reverse device was invented, this situation did occur many times when children used sippy cups, and some caused more serious consequences. It can be said that the reverser was developed for the imperfections of habitual structures.
Sippy cups without reversers are more suitable for adults, making them convenient for drinking and easy to clean. However, since most straws are made of silicone, new straws must be replaced regularly.
Warm reminder: when using a straw cup, do not drink hot water, dairy drinks and drinks with high sugar content. Drinking hot water with a straw cup can easily cause burns, and milk and drinks with high sugar content are difficult to clean after use.
Post time: May-08-2024