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目前农村农产和村中自来水塔的供水全靠手动。采用笔者自制的自动供水器,可以改变这种状况。线路图中元件选择如下:K选用JRX-13F-12伏双触点继电器、VD用IN4148硅开关二极管、VT1～VT4选用9013或3DG6,p≥100,R_1、R_4选用5.6kΩ、R_2、R_3选用20kΩ、1/8碳膜电阻。水的阻值约为20～30kΩ,当水池中的水位低于A时,K吸合,动合触点K_1、K_2分别使电机工作并连通C、D两点。水池中水位升
At present, the supply of tap water towers in rural areas and villages is entirely by hand. Self-made by the author of automatic water supply, you can change this situation. Circuit diagram of the components are as follows: K use JRX-13F-12 volt dual contact relay, VD with IN4148 silicon switching diodes, VT1 ~ VT4 use 9013 or 3DG6, p ≥ 100, R_1, R_4 use 5.6kΩ, R_2, R_3 optional 20kΩ, 1/8 carbon film resistor. Water resistance is about 20 ~ 30kΩ, when the water level in the pool is lower than A, K pull, moving contacts K_1, K_2, respectively, to work and motor connected to C, D two. Water level rise in the pool