Dual-drainage switching mechanism of water tank

摘要

A dual-drainage switching mechanism of water tank has: a water container with bottom opening of the inner cavity, an air vent communicating with the inner cavity is arranged on the sealed top; a valve unit used for controlling opens or closes of the air vent; a drain valve controller comprising a partial flush button and a full flush button, and the air vent is opened through the linking and coupling of the full flush button and the valve unit, and the air vent is closed through the linking and coupling of the partial flush button and the valve unit. The dual-draining switch is achieved through hermetically storing or non-hermetically controlling part of water body in the inner cavity of the water container, traditional one-pressing drain valve can be transformed into the draining control mechanism with dual-draining function.

主权项

1. Dual-drainage switching mechanism of water tank, comprising:
a water tank, a water container arranged in the water tank, the water container having an inner cavity with a bottom opening, an air vent communicating with the inner cavity arranged on a sealed top of the water container, a valve unit used for controlling opening and closing of the air vent, and a drain valve controller comprising a partial flush button and a full flush button, wherein: water flows into the water container and is discharged from the water container via a drain valve base under action of an atmosphere and a weight of the water, the air vent is opened through linking and coupling of the full flush button and the valve unit to communicate between the inner cavity of the water container and the atmosphere, when fully flushing the water tank, and the air vent is closed through linking and coupling of the partial flush button and the valve unit to keep the inner cavity of the water container sealed from the atmosphere to prevent water from flowing out of the inner cavity, when partially flushing the water tank.