| 摘要 |
<p>For watering cattle with a high efficiency, an automatic drinking bowl is designed to give a high or low water inlet rate, which is automatically matched to the drinking rate of the cow or other animal so that drinking may take place as from a natural watering place. When not in use, the spring-supported bowl is pushed downwards by the water in it shutting off an inlet valve. On a cow's drinking from the bowl, and so decreasing the weight of the water therein, the bowl is pushed upwards by the spring so that the water inlet valve is opened to an amount fully in step with the distance the bowl is moved upwards by the spring and so that the water inlet rate is very much in line with the animals drinking rate. The bowl is hinged to a support and joined with the inlet valve by a flexible hose. The water inlet opening is at the lowest point in the bowl and next to the water inlet opening, and there is a cleaning opening for clearing waste from the bowl.</p> |
