Equipped with different parts according to the water outlet method. Ordinary thermos flasks are suitable for hand-held shell handles and pouring bottles. They need to be equipped with stoppers, such as cork stoppers, soft rubber expansion stoppers, plastic stoppers for water-controlling balls in the cavity, and plastic stoppers with screw-threaded water outlets. The thermos flask that siphons water out needs to be equipped with a siphon tube and valve device in the container. Air-pressure thermos is called air-pressure thermos, and it has two structures. Commonly used is to install a small air drum on the shell cover, press it by hand or through a mechanism, so that the liquid surface is under air pressure, and water is discharged through the pipe; the other is to install a small electromagnetic vibration pump on the shell to make the liquid surface under air pressure. , The water is discharged through the tube. In order to meet the needs of the use, the large-mouth thermos for holding food is equipped with non-toxic plastic lining and a small sleeve container with a matching configuration.
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