The invention relates to a cat sand filtering device,It consists of the lower part and the upper part,The footwall is mainly composed of the footwall bodyOpeningMotor and cam,The opening is arranged above the footwall body,The motor is arranged on the inner side of the footwall,The cam is pivoted on the motor,And the hanging wall is mainly composed of the hanging wall bodyFixed shaftThe return spring is composed of a filter screen,The fixed shaft is simultaneously arranged on the same side of the upper disc body and the lower disc body,The fixed shaft is sleeved with the return spring,The bottom of the upper disc body is provided with the filter screen,The cam is periodically driven by the motor up against the upper disc body,The return spring returns downward,And so on,In order to facilitate that the cat litter in the upper body can be effectively filtered by the filter screen.本新型創作係有關一種貓砂過濾裝置,包括下盤部與上盤部所構成,該下盤部主要係由下盤體、開口、馬達與凸輪所組成,該下盤體上方開設該開口,在該下盤體內側裝設該馬達,該馬達上又樞設有該凸輪,而該上盤部主要係由上盤體、固定軸、復位彈簧與過濾網所組成,該固定軸同時穿設於該上盤體以及該下盤體的同一側邊,在該固定軸上套置有該復位彈簧,繼該上盤體底部具有該過濾網,藉由馬達帶動凸輪週期性的向上抵頂上盤體,而復位彈簧向下復位,以此上下反覆動作,以利於位於上盤體內的貓砂可有效被過濾網過濾者。