| 摘要 |
A pet watering fountain including a box-shaped housing, a water supplyer, a hose, two pipes, a control valve unit (body), a helical or expansion spring (spring), a bowl, a drain, and a pedal. A thirsty dog walks onto the spring-biased pedal. The spring-biased pedal is then lowered to the floor of the housing which actuates a lever on the control valve unit. As a result, water flows from an outside hose bib into a garden hose, through a first pipe into a valve unit, then into a second pipe which fills into an elevated bowl.
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