| abstract |
The invention discloses a sewage detection device for environment detection, and relates to the technical field of sewage detection devices. The pressing device comprises a shell, a pressing plate and a second pipeline, wherein a first pipeline is fixedly connected to one side face of the shell, a cylindrical groove and a sliding groove are formed in the other side face of the shell, a piston rod is connected in the cylindrical groove in a sliding mode, a piston rod is fixedly connected to the side face of the piston rod, an inserting rod is connected in the sliding groove in a sliding mode, a locking groove is formed in the side face of the inserting rod, a locking block is connected in the locking groove in a sliding mode, a first spring is fixedly connected to the side face of the locking block, a pressing groove is formed in the side face of the shell, a limiting block is fixedly connected to the edge of the pressing groove, a sliding block is connected in the pressing groove in a sliding mode, a second spring is fixedly connected to the bottom of the pressing block sliding groove in the sliding mode, and a hose is fixedly connected to the side face of the second pipeline. The invention is convenient to carry and sample by arranging the piston rod, the inserted rod and the locking block, can take water with different depth according to the requirement and has good popularization prospect. |