| 摘要 |
A suction device includes a handle assembly, a tube and a suction cup. The handle assembly includes a body defining a Venturi vacuum generator. The Venturi vacuum generator includes an inlet passage, an outlet passage and a valve bore. The inlet passage includes an inlet port. The outlet passage includes an outlet port and a suction port. A valve is disposed in the valve bore of the body. The valve provides selective fluid communication between the inlet passage and the outlet passage. An actuator is engaged to the body. The actuator is adapted to actuate the valve. The tube has a first axial end and an oppositely disposed second axial end. The first axial end is engaged to the handle assembly. The suction cup is engaged to the second axial end of the tube.
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