| 摘要 |
Debris vacuum device including a suction bulb. In a first embodiment the suction bulb includes a hollow tube with an inlet check valve located at one end and an exhaust check valve located at the opposing end. A screen is provided to extend across the interior of the tube intermediate the ends. By squeezing the walls of the tube, water can be forced out the exhaust check valve with the inlet check valve closed. Then as the flexible walls expand to their original shape, water and debris are drawn into the tube to the inlet check valve while the outlet check valve is closed. In a second embodiment, a bulb having a single opening into the interior is used. An inlet tube for drawing debris and water has one end inserted into the interior of the bulb. The bulb opening is also connected to an exhaust port to allow water to the forced out of the interior of the bulb. An inlet check valve is placed across the inlet tube and an exhaust check valve is placed across the exhaust port. A screen is positioned between the exhaust port and the interior of the bulb and will catch debris that has entered the bulb and is attempting to exit when the bulb is squeezed.
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