Patent ID: 9573738
Date: 2017-02-21
CPC Classifications: A47G,B65D

Claim:
1. A beverage container cap comprising: a cap body that is movably disposed on an opening on top of a beverage container; the cap body having a valve seat with a chamber on a top surface thereof, a fluid through hole set on bottom of the chamber, penetrating therethrough and communicating with an inner space of the beverage container, and at least one vent hole arranged around the fluid through hole; a waterproof gasket fixed on the fluid through hole on bottom of the chamber; the waterproof gasket having a liquid through hole corresponding to and communicating with the fluid through hole on bottom of the chamber of the cap body, and at least one vent arranged around the liquid through hole, corresponding to and communicating with the vent hole of the cap body; and a pivot valve pivotally connected to and mounted in the chamber of the valve seat and including a hemispherical pivot part located on bottom of the pivot valve and a nozzle part formed by extension of the hemispherical pivot part; the hemispherical pivot part having a hemispherical surface; wherein the hemispherical surface is tightly pressed against the liquid through hole of the waterproof gasket and is switched between a first pivot position and a second pivot position along with movement of the pivot valve; a flow channel is disposed inside the nozzle part and two ends of the flow channel form a water inlet and a water outlet respectively while the water inlet is located at the hemispherical surface of the pivot part while the water outlet is located at one end of the nozzle part opposite to the end of the nozzle part with the pivot part; at least one lug is disposed around the hemispherical surface; wherein the water inlet on the hemispherical surface of the pivot valve is away from the liquid through hole of the waterproof gasket and the hemispherical surface is pressed against the liquid through hole of the waterproof gasket tightly when the pivot valve is pivotally rotated to the first pivot position; at the same time, the lug around the hemispherical surface is closely pressed against the vent of the waterproof gasket so that the beverage container cap is in a closed state; wherein the water inlet on the hemispherical surface of the pivot valve is aligned with and communicating with the liquid through hole of the waterproof gasket when the pivot valve is pivotally rotated to the second pivot position; at the same time, the lug around the hemispherical surface is away from the vent of the waterproof gasket and the vent hole of the cap body is communicating with the outside through the vent of the waterproof gasket so that the beverage container cap is in an open state.