This creation is to provide a blood-sucking cotton tank, which is mainly composed of a tank body, an adjusting rod, a knob, and a number of blood-sucking cotton blocks. The tank body is provided with a number of guiding ribs on the inner wall of the chamber. The bottom is set as an opening. The periphery of the opening of the tank is provided with a constricted clamping part. The bottom wall of the tank is provided with a number of cut grooves. The top of the tank is provided with a perforation. The upper end of the adjustment rod It extends through the perforation of the tank, the upper end of the adjusting rod is set as an external thread section, a bearing is provided under the outer thread section of the adjusting rod, the rod body of the adjusting rod is provided with spiral teeth, and the knob is a screw It is arranged on the threaded section outside the adjusting rod. The blood-sucking cotton block is arranged in the chamber of the tank. The blood-sucking cotton block is provided with a positioning piece. The positioning piece is provided with a screw hole. The screw hole is provided for the The spiral tooth of the adjusting rod is screwed, and the peripheral edge of the positioning piece is provided with a number of guide grooves, which are matched with the guide protrusions of the tank body. In this way, it is a blood-sucking cotton tank structure that can be used to easily draw wound blood.本創作係在提供一種吸血棉罐，主要係由一罐體、一調整桿、一旋鈕及數吸血棉塊所組成，該罐體之容室內壁面上設有數導引凸條，該罐體之底部設為開口，該罐體之開口周緣係設呈內縮狀之夾持部，該罐體之底部壁面上設有數切槽，該罐體之頂面設有一穿孔，該調整桿其上端部係穿伸於該罐體之穿孔，該調整桿之上端部設為外螺紋段，該調整桿之外螺紋段下方設有一軸承，該調整桿之桿體上設有螺旋齒，該旋鈕係螺設於該調整桿之外螺紋段上，該數吸血棉塊係設於該罐體之容室內，該吸血棉塊上設有一定位片，該定位片上設有一螺孔，該螺孔係供該調整桿之螺旋齒螺設，該定位片之周緣設有數導槽，該導槽係與該罐體之導引凸條配合，如此，即為一可方便吸取傷口血液使用之吸血棉罐結構。
