| 摘要 |
A rotary water gate having the guide ring for the bending protection is provided that the lifespan of rotary water gate can be extended. A rotary water gate(20) having the guide ring for the bending protection comprises a guide ring(30) fixed to the bottom part of the waterway(11) to the regular interval, a rotary shaft(23) of the water gate which is arranged identically with the center of each guide ring, a guide groove(24) formed in the guide projection corresponding position of water gate board(21). |
