A juice extractor capable of extracting juice from vegetables, fruits or soymilk from beans is disclosed. The extractor includes a housing having a draff outlet port and a juice outlet port, a screw having an upper rotary shaft inserted in a rotary shaft hole of the housing and a lower rotary shaft with a plurality of screw spirals formed on an outer periphery thereof, and a mesh drum for extracting the juice toward the juice outlet port, and a rotary brush mounted between the housing and the mesh drum and having a brush holder. Various nutrients and intrinsic flavor contained in the vegetables or fruits are maintained to the fullest extent by employing a very low speed screw of a squeezing mode. Also, since the housing accommodating the screw is vertically fixed to an upper portion of a drive unit, the material is automatically moved downward without pressing the material down, and the draff is discharged while squeezing and grinding the materials put in an inlet port.本發明揭示一種榨汁機,其能夠自蔬菜、水果榨取汁液或自豆榨取豆漿。該榨汁機包括一外殼,其具有一殘渣出口及一汁液出口;一螺桿,其具有一插入一外殼之旋轉軸孔中之上旋轉軸及一下旋轉軸,其中在其外周邊上形成複數個螺桿螺線;及一用於沿汁液出口榨取汁液之網孔鼓;及一置於外殼與網孔鼓之間且具有一刷固持器的旋轉刷。藉由使用擠壓式極低速度螺桿最大程度地保持蔬菜或水果中所含之各種營養及固有風味。此外,因為容納螺桿之外殼垂直地固定於驅動單元之上部,故可在不向下壓材料的情況下使材料自動向下移動,且在擠壓及研磨置於入口中之材料的同時排放殘渣。100‧‧‧蓋110‧‧‧入口120‧‧‧旋轉軸孔130‧‧‧接合顎135‧‧‧外周邊140‧‧‧傾斜表面200‧‧‧螺桿210‧‧‧旋轉軸225‧‧‧排放口230‧‧‧多邊形軸孔240‧‧‧下旋轉軸250‧‧‧內環260‧‧‧外環270‧‧‧下部空間280‧‧‧螺桿齒輪290‧‧‧圓形突出插入孔300‧‧‧網孔鼓310‧‧‧壁刀片320‧‧‧過濾網330‧‧‧壓製網340‧‧‧底環350‧‧‧排放傾斜表面360‧‧‧網孔鼓排放孔370‧‧‧圓形突出375‧‧‧圓槽380‧‧‧內環插入孔390‧‧‧研磨刀片400‧‧‧旋轉刷410‧‧‧網刷420‧‧‧外殼刷430‧‧‧刷固持器440‧‧‧刷齒輪460‧‧‧壓製網刷500‧‧‧外殼510‧‧‧接合突出520‧‧‧通孔530‧‧‧防水圓筒540‧‧‧外殼排放孔550‧‧‧圓形引導口560‧‧‧汁液出口570‧‧‧殘渣出口575‧‧‧填充件580‧‧‧壓力排放通道/通道590‧‧‧中間齒輪595‧‧‧中間齒輪旋轉軸600‧‧‧驅動單元610‧‧‧多邊形軸620‧‧‧接合鉤630‧‧‧緊固突出
