| 摘要 |
Disclosed is a swivel joint assembly for coupling two tubular plumbing conduits to each other in flow communication with each other and which permits angular movement and axial expansion of the conduits relative to each other, allowing easier connection. The assembly includes a tubular swivel joint member having one swivel joint formation, a tubular adaptor including a complementary swivel joint formation that is complementary to the one swivel joint formation. The one swivel joint formation on the tubular swivel joint member is one of a spigot or socket formation and the complementary swivel joint formation on the adaptor is the other of a spigot or socket formation. A displaceable tubular member is telescopically coupled such that it is in flow communication to the tubular adaptor. One of the displaceable tubular member and the tubular adapter is an inner tubular member and the other of the inner tubular member and the tubular adapter is an outer tubular member. The inner tubular member is slidingly received within the outer tubular member such that the tubular adapter and the tubular member are telescopically displaceable relative to each other whereby to render the joint assembly axially expansible as well as capable of a swivelling action. A socket retainer is used for retaining the socket formation on the swivel joint member or the adaptor in its operative position mounted over the spigot formation. The socket retainer including a collar, concentrically surrounds the spigot formation and is spaced radially outward of the spigot formation. A retaining shoulder on the collar extends radially inward from one end to a radially inner edge that defines a socket opening which is sized to receive an adjacent portion of the socket formation therein but resists the entire socket formation from being withdrawn.
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