| 摘要 |
PURPOSE: An automatic water gate attached with a power device is provided to open and close a water gate by controlling the flow rate at the wanted time. CONSTITUTION: The automatic opening/closing water gate(S22) attached with a power device comprises: a transmission gear manufactured by a stainless steel plate to prevent the corrosion by moisture and harmful gas and attached with a movable switch to check the opening and closing state of a water gate; a stainless steel winch cover made of a stainless steel plate to prevent the corrosion by moisture and harmful gas and formed in a structure to bear against the external impact; a hand lever manufactured by a roller bearing and a cam to rotate a rotary shaft to one way smoothly when operating a lever; a safety device composed of a bed brake, a foot brake, a centrifugal brake, a shock absorbing device, a water gate fixing device and an overload preventive device; and an electric-powered winch(S24) installed to make a contact gear and a rack bar engage mutually. |
