Filter device fixing structure of water tank water inlet valve

The utility model discloses a filtering device fixing structure of a water tank water inlet valve. The filtering device fixing structure comprises a filtering device, a screw cap and a water inlet valve body, the upper end of the filtering device is connected with the screw cap, an opening is formed in the water inlet valve body, the filtering device is inserted into a water inlet channel of the water inlet valve body through the opening, and a clamping convex block and a limiting column are arranged on the periphery of the opening in an outward protruding mode; the rotary cover is annular, a clamping groove, a guide groove and a limiting groove are formed in the annular inner side wall of the rotary cover, the guide groove is used for inserting and pulling out the clamping protruding block, the guide groove is communicated with the clamping groove, the rotary cover covers the opening, and the rotary cover rotates to enable the clamping protruding block to be separated from the guide groove to be matched with