Brief description of the legend:
Figure 1 shows a cross-sectional view of a water bag mouthpiece consistent with the preferred solution of the present invention. In the figure, the mouthpiece is in an "open" state.
Figure 2 shows a cross-sectional view of the water bag mouthpiece in Figure 1 in the "locked" state.
Figure 3 shows an exploded view of the water bag mouthpiece in Figure 1.
Figure 4A shows a schematic diagram of the connection between the mouthpiece of the water bag and the drinking water pipe in Figure 1.
Illustrated in Figure 4B is a personal hydration bag equipped with a mouthpiece and connected to a water pipe consistent with the present invention.
Figure 5A shows the "open" state of the mouthpiece in Figure 1.
Figure 5B shows the "closed" state of the mouthpiece in Figure 1.
Figure 5C shows the "locked" state of the mouthpiece in Figure 1.
Please correct me if the translation is wrong.