Sponge fixing mechanism for sponge mop

A sponge fixing mechanism for sponge mop, comprising:

• a first fastener comprising a chute and a mating surface disposed in said chute, said chute comprising an upper opening and an inlet and an outlet respectively located on two opposite ends of said first fastener, said mating surface of said first fastener facing said upper opening;
• a second fastener comprising a mating surface, said second fastener being installed in said chute and detachably fastened to said first fastener with said mating surface of said second fastener in sliding contact with said mating surface of said first fastener;
• and
• a sponge unit located in said second fastener;
• wherein one of said first fastener and said second fastener comprises a latching recess recessed from the associating said mating surface, the other of said first fastener and said second fastener comprises a latching protrusion protruded from the associating said mating surface, said first fastener and said second fastener being fastened together by elastically engaging said latching protrusion into said latching recess,
• wherein said latching recess comprises an inner bottom surface, and two inner guide surfaces respectively extended from two opposite sides of said inner bottom surface to the associating said mating surface;
• said latching protrusion comprises an outer bottom surface and two outer guide surfaces corresponding to said inner bottom surface and said inner guide surfaces of said latching recess respectively.