Automatic cleaning device for piston rod of shock absorber

The utility model relates to the technical field of automobile shock absorbers, and discloses a shock absorber piston rod automatic cleaning device which comprises a box body, the bottom of the right end of the box body is fixedly connected with a collecting box, the bottom of the left end of the box body is fixedly connected with a filtering box, and the middle of the upper end of the filtering box is fixedly connected with a flow guide box. A guide pipe is fixedly connected to the middle of the upper end of the flow guide box, an adsorption net is fixedly connected to the top in the filter box, a filter screen is fixedly connected to the middle of the lower end of the adsorption net, and a first filter cylinder is fixedly connected to the middle of the lower end of the filter screen. According to the sewage treatment device disclosed by the utility model, impurities can be filtered for the first time through the rotation of the filter cartridge II, then filtered water is conveyed into the filter box, then w