Patent ID: 9266753
Filing Date: 2016-02-23
CPC Classification: B01F,C02F

Claim Text:
1. A fluid mixing device, comprising: a body, internally formed with at least one inlet channel for communicating with at least one water source, a first channel, an outlet channel communicating between the first channel and outside of the body, and a gassing channel communicating between the first channel and a gas source; a water controlling valve assembly, including a shell fluid-sealingly assembled on the body and a water controlling valve disposed in the shell, the shell being formed with at least one entrance and a first exit, the at least one entrance communicating with the at least one inlet channel, the first exit communicating with the first channel, the water controlling valve operable between a first position and a second position to control the flow of the water source to flow out from the interior of the water controlling valve via the first exit; a Venturi tube structure, disposed within the first channel, including a necked passage communicating with the first channel and a gassing hole communicating between the necked passage and the gassing channel; a first check valve, disposed in the body and inside the gassing channel to only allow a flow to flow toward the first channel; and a second check valve, disposed in the body and inside the first channel, disposed between the outlet channel and the necked passage to only allow a flow to flow toward the outlet channel; wherein when the water controlling valve is located in the first position, the interior of the water controlling valve communicates with the first exit, and the water flow passes through the necked passage and draws gas from the gas source through the gassing hole to come into the necked passage to mix with each other; when the water controlling valve is located in the second position, the interior of the water controlling valve is uncommunicated with the first exit.