The utility model relates to a rivers channel equipment for marking field specifically indicates buoy anchor cable flotation -proof thing wind, including stator, rotor, bolster bearing housing and step, the rotor overlaps on the stator to be connected with the stator in the bolster bearing housing and the step at rotor both ends through fixed the dress. The stator includes a core section of thickbamboo and respectively central siphon and central siphon down on the echelonment at spiro union both ends about a core section of thick bamboo, and bolster bearing housing and step coordinate with last central siphon and central siphon down respectively. The rotor includes that rotary drum and fixed locates many ARC blade on the rotary drum outer wall, goes up central siphon and the tip of central siphon down and do not wears out bolster bearing housing and step, and lower central siphon lower extreme is fixed to be equipped with one and to detain in the suction hood that prevents of ARC blade lower extreme. The difficult accumulation twister of the device lower extreme can effectively reduce artifical maintenance cost, and the rotor part of device adopts helical shape bucket formula blade, and is higher to the utilization ratio of rivers kinetic energy, helps maintaining effective rotational speed of rotor, guarantees driving from the effect the floater.