Patent ID: 8109741

Claim:
A pump comprising a body having a chamber defined inside the body; an inlet tube and a connecting pipe mounted securely on the body and communicating with the chamber; an outlet tube mounted securely on the body and communicating with the chamber; an impeller mounted rotatably inside the chamber and connected to and driven by a motor; and a magnetic check valve mounted in the outlet tube and comprising a guide bracket corresponding to and mounted securely in the outlet tube and having a center; multiple through holes formed through the guide bracket to allow liquid to pass therethrough; and a mounting hole defined through the center of the guide bracket and being quadrangular; a spindle having a rod being quadrangular in cross section, corresponding to and mounted slidably in the mounting hole of the guide bracket and having a magnet recess; and a magnet mounted in the magnet recess; and a stuffing nut formed on the rod and selectively closing the outlet tube; and a magnetic switch mounted securely in the outlet tube adjacent to the guide bracket of the magnetic check valve and selectively actuated by the magnet; and a pressurizing barrel communicating with the body through the connecting pipe and having a connecting bracket mounted securely on the body; a casing mounted on the pressurizing barrel and having a notch defined in the casing; an opening; and a cap removably mounted on the opening; and a circuit board controlling operation of the pressurizing barrel and detachably mounted inside the notch of the casing.