A joint for one of a water inlet or water outlet of a filter cylinder or a filter casing

摘要

A joint for one of a water inlet or water outlet of a filter cylinder or a filter casing comprises a round cylindrical tube (6), at least one first waterproof washer (60) installed near one end of the round cylindrical tube (6); an outer thread on an outer surface of the round cylindrical tube (6) and behind the waterproof washer (60); an opening remote from the washer (60) is a round opening (63) and an interior of the round cylindrical tube (6) is formed as a polygonal hole (62); one end of a T shape sleeve (31) has a plurality of tapered claws (311) and a waterproof washer (4) encloses the end of the T shape sleeve (31) so as to be expanded by the tapered claws (311) and a water tube (3).