A vertical chain type hand push lawn mower, which is used in gardening and lawn places to replace human operators； a blade rotating shaft driven by a power motor is provided in the machine table of the lawn mower, which is assembled in the blade rotating shaft There are several vertical chain blades, which are thought to form a swing shape when rotating rapidly. A driving wheel is provided on each side of the blade shaft and the power motor, and is meshed by a toothed belt to form a transmission power to act. The driving wheel is equipped with an adjustment plate for adjusting the tightness of the toothed belt； and a driving rod is pivoted in the front and rear wheels on the machine side, and the two driving rods are pivoted in the linkage respectively. The two ends of the rod are connected, and there is a pull bolt at one end of the driving rod of the rear wheel, so that the pull bolt can be inserted into one of the holes of the adjustment plate seat on the side of the machine for positioning； this way, by After adjusting the height of the distance between the blade shaft and the ground, move it, thinking that changing the environmental vision after mowing is to replace manpower, save costs and improve work efficiency and increase productivity.一種垂鏈式手推割草機，係指運用在園藝、草坪場所中，以做為取代人力操作者；在割草機的機台中設有一由動力馬達帶動的刀片轉軸，在刀片轉軸中組裝有數個垂鏈刀片、以為在快速轉動時形成甩擺形態，在刀片轉軸與動力馬達一側各設有一帶動轉輪、並由一齒皮帶所嚙合，以形成傳輸動力來作動，在動力馬達的帶動轉輪並設有一調整板、以供調整齒皮帶的鬆緊度；而在機台一側的前、後車輪中則設有一帶動桿樞設，在兩帶動桿之間則分別樞設於連動桿的兩端連結，另在後輪的帶動桿一端則設有一拉栓、以為拉栓可嵌入位在機台一側的調整板座之其中一孔洞中呈定位作用；如此一來，藉由調整刀片轉軸與地面的距離高度後做移動下，以為變化割草後的環境視覺，是達到取代人力的節省成本及提昇工作效率的增加產能目的。
