This Chong makees the Zhong Geng Machine of As mono- Seed tool Die Xing Open Ditch devices, Qi Department mono- resistance rods of Office Let below the Hou end of this Body of Zhong Geng Machine Machine Jia, The butterfly shape Open Ditch devices have a Installed and Two Pressure soil pieces of peace, Two Pressure soil Pian Fen Do Pivot Let Installed fit over the Two Side of An Installed seats, the mutual And Rope of Side before Two Pressure soil pieces, the Hou Side of Two Pressure soil pieces is towards Wai Side Expansion Zhang, Pei Tu Time in Zhong Geng Machine whats field are thereby provided, with the soil of The Two Pressure soil piece Will Ditch canals towards Two Side Dial Open, the Side Side soil in the mounds Pressure Real Xuan Turn And portion, make the Side Side Tu Rang More As Tight Real in the mounds The portion, it is not easy to collapse due to Wind blows and drenches with rain, it can provide the convenience and Festival Sheng Gong Time of operation.本創作為一種具蝶形開溝器的中耕機,其係在中耕機之機架本體的後端下方處設一阻力棒,該蝶形開溝器具有一安裝座及兩壓土片,兩壓土片分別樞設裝配在安裝座之兩側,兩壓土片之前側相互併攏,兩壓土片之後側朝向外側擴張,藉此提供中耕機於田地中培土時,以該兩壓土片將溝渠之土壤朝向兩側撥開,並旋轉壓實丘部之側邊土壤,使該丘部的側邊土壤較為緊實,不易因風吹雨淋而塌陷,可提供作業之便利及節省工時。