Supplier wholesale purple tumbler mug

The tumbler cup is a vessel that relates to a cup-shaped container. The bottom contact surface is very small, and the cup body can shake when moving. The principle is: the upper part is light and the lower part is hollow, the thickened arc-shaped bottom, the weight is concentrated in the center of the bottom of the cup, the bottom contact surface is very small, and the cup can shake when moving. When the tumbler is in balance when it is erected, the distance between the center of gravity and the contact point is the smallest,  At the bottom of the cup, there is a small but powerful air valve. With the help of air pressure, the cup is pressed tightly on the table to take the cup, and the force is applied diagonally upwards, and the air valve will automatically unlock, so it won’t be strenuous.

It relies on its own attractive force to squeeze out the air between the contact surface, and uses atmospheric pressure to increase the pressure between the contact surfaces to increase friction and prevent the placed object from slipping off. When in use, the smooth side faces down, that is, the smooth side is in contact with the instrument panel. There is a bumpy texture, or the side of the text pattern is facing up. The tumbler always stands on the supporting surface with a contact point, it is always a monopod. Light and heavy objects are more stable, which means that the lower the center of gravity, the more stable. When the tumbler is in balance when it is erected, the distance between the center of gravity and the contact point is the smallest, that is, the center of gravity is the lowest. After deviating from the equilibrium position, the center of gravity always rises. Therefore, the balance of this state is a stable balance. So the tumbler will never fall no matter how it swings.