The utility model relates to a bicycle mudguard which is characterized in that when
sediment splashed in the running process of a bicycle needs to be blocked in
actual use, a shell can be mounted on a connecting rod below a
saddle of the bicycle through a mounting component, so that a mudguard piece covers the upper part of a rear wheel of the bicycle, and when the bicycle is ridden, the
sediment is blocked by the mudguard piece, so that the mudguard piece is prevented from splashing. When
silt adhering to the mud blocking piece needs to be cleaned, connection between the fixing
assembly and the movable key can be removed firstly, then the movable key is pulled towards the direction of the installation
assembly, the movable key drives the mud blocking piece to move through the sliding piece, and the mud blocking piece is prevented from being splashed to the body of a rider. Then the mud blocking piece passing through the upper scraping plate and the lower scraping plate is subjected to wall scraping cleaning, so that
silt falls off from the mud blocking piece, then the mud blocking piece is reset after cleaning is completed, the moving piece is fixed through the fixing
assembly, and the mud blocking piece cannot slide at will in the using process; therefore, the
silt adhered to the outer surface of the mudguard can be cleaned more conveniently and efficiently.