The utility model relates to
sewage treatment technical field discloses a
sewage purification device for
environmental protection, including biological filler, the biological filler sets up in the purification box inside, biological filler outer wall is fixedly connected with the pendant
rope, the pendant
rope one end is fixedly connected with the fixed link, the fixed link inner wall is connected with the sliding block of sliding, the sliding block outer wall is fixedly connected with the pressing plate, the pressing plate outer wall is fixedly connected with the
fixed frame, the
fixed frame inner wall is rotatably connected with the connecting block, the connecting block outer wall is connected with
screw thread, in the utility model, the cooperation of fixed link, pendant
rope, sliding block, pressing plate,
fixed frame, connecting block and screw, can be quick and compact or relax the pendant rope for the biological filler's convenient replacement is realized, effectively solved the biological filler replacement operation cumbersome, time -consuming and labor -intensive problem in traditional device, the maintenance efficiency of
sewage purification device is greatly promoted, guarantees the stability and continuity of purification effect.