Antibacterial functional filter material

The utility model discloses an antibacterial functional filter material which comprises a filter element, a top ring cover is installed at the top end of the filter element, a U-shaped groove extending downwards is formed in the middle of the inner side of the top ring cover, an inclined attaching piece is embedded in the inner wall of the top ring cover, and a gap is formed between the top of theattaching piece and the inner wall of the top ring cover. A top ring cover is fixed to the top of the fitting piece, a connecting rod penetrating through the top ring cover is fixed to the top of thefitting piece, a pull ring is fixed to the end of the connecting rod, a telescopic spring is arranged on the surface of the connecting rod relative to the distance between the fitting piece and the inner wall of the top ring cover in a sleeving mode, and a plurality of limiting grooves are formed in the surface of the fitting piece. Through the designed attaching piece, the installation stabilitycan be guaranteed on the p