A kind of artificial limb knee joint device, comprising a joint hold seat, a main body base, one can actuation connecting joint hold the linkage unit of seat and main body base, a siphunculus, a flow regulating part and a drive control unit. An accommodating space is formed inside main body base. The buffer gear that there is linkage unit a part to accommodate what accommodating space. Accommodating space is divided into a upper chamber and a lower chambers and can slided up and down in what accommodating space by buffer gear. Siphunculus forms through-hole and lower through-hole on be respectively communicated with upper chamber and lower chambers one, the adjustment portion between the upper and lower through-hole of Ji Yijie what. Flow regulating part can what siphunculus intrinsic displacement to change the fluid flow rate between upper and lower through-hole. Drive control unit includes a position what accommodating space neither ipsilateral driving mechanism and a stored energy mechanism respectively. Driving mechanism connects flow regulating part to drive flow regulating part to be displaced. Stored energy mechanism couples what driving mechanism with energy needed for providing driving mechanism actuation.一種義肢膝關節裝置，包含一關節承座、一主體座、一可作動地連接關節承座及主體座的連動單元、一通管、一流量調節件，及一驅動控制單元。主體座內部形成一容置空間。連動單元具有一個部分容置於容置空間的緩衝機構。緩衝機構將容置空間分隔為一上腔室及一下腔室並可於容置空間內上下滑動。通管形成分別連通上腔室與下腔室的一上通孔與下通孔，及一介於上、下通孔間的調節部。流量調節件可於通管內位移以改變上、下通孔間的流體流率。驅動控制單元包括分別位於容置空間兩不同側的一驅動機構及一儲能機構。驅動機構連接流量調節件以驅動流量調節件位移。儲能機構耦接於驅動機構以提供驅動機構作動所需的能量。
