This creation is a kind of improvement of drip box filter structure,Mean a kind of aquarium extraction-type drip box filter structure,System includes: an outer box,Mainly be its top surface of what,Bottom surface,Front and centre are set as the opening communicated,Also,The top surface architrave four corners of outer box are equipped with jack,In addition,Outer box bottom surface architrave,System is equipped with several latches that can be corresponding with outer each jack of box top architrave,Slotting positioning can mutually be folded by forming outer box； Also,Two side-lines of outer box are equipped with card hole and use for fixed,Wherein,The front openings of outer box,System plants for an inner box into positioning or extraction,The centre of the inner box is a tank,For being placed in filter material,The bottom plate of inner box is equipped with countless drip ports,For the downward drip of water through filter material impurity screening,In the inner box position what outer box,Cleaning filter material or merging filter material can quickly be extracted out,In addition,There is a upper cover,For setting the top surface of what outer box,And positioning is set for outlet pipe,And have a frame body,System mounts positioning above what aquarium,For one or several oblique water conservancy diversion water-collecting trays,Outer box positioning arranged side by side stacked on top of each other increases filter area,Water is discharged into the filter material impurity screening of each inner box through outlet pipe,Drip enters oblique water conservancy diversion water-collecting tray,It tiltedly is drained to water outlet,Being drained into aquarium for waterfall form is constituted,The effect of scape person is made in formation.本創作為一種滴流盒過濾結構改良，係指一種水族箱抽取式滴流盒過濾結構，係包括有：一外盒，主要係於其頂面、底面、前面與中間設為相通之開口，又，外盒之頂面框緣四角處設有插孔，另，外盒底面框緣，係設有數個可與外盒頂面框緣各插孔對應之插梢，形成外盒可相互疊插定位；又，外盒之兩側係設有卡孔供定使用，其中，外盒之前面開口，係可供一內盒插置入定位或抽出，該內盒之中間為一容槽，可供置入過濾材，內盒之底板設有無數的滴流孔，可供經過濾材過濾雜質的水向下滴流，該內盒位於外盒內，
