| 摘要 |
PURPOSE: A vacuum self-priming pump is provided to simplify the structure of an air exhaust member and improve air exhaustion efficiency. CONSTITUTION: A vacuum self-priming pump comprises a pump room(3), a body(4), and an air exhaust member. The pump room discharges fluid by rotating an impeller(2) using the drive force of a motor. A check valve(10) is formed on the outlet of the pump room in a specific direction. The air exhaust member discharges the air of the pump room to outside. An air discharge pipe is communicated with one side of the pump room. An air discharge pipe has an open and close valve(5) to control the air flow. A reservoir is inserted between the vacuum pump and air discharge pipe.
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