Fluid injector

Abstract

A fluid injector for connecting a connection port of a container or tank includes a housing and a transmission mechanism disposed in the housing. The housing has a fluid inlet and a fluid outlet surrounded by an annular wall. A control valve is provided in the housing for opening and closing the fluid inlet. One end of the transmission mechanism is connected to the control valve, and another end of the transmission mechanism is connected to a movable post passing through the annular wall. When the control valve opens or closes the fluid inlet, the transmission mechanism is driven by the control valve, and the movable post extends out of the annular wall to be engaged with the connection port or retracts into the annular wall, thereby determining the connection state of the fluid injector and the connection port and ensuring that the movable post is exactly controlled.

Dependencies are inferred from the claim text.