| 摘要 |
<p>Bell and spigot fluid pipe connections (100) are provided in this invention which include a first pipe (10) having a first end which is sized to receive a second end of a second pipe (20) in a male to female relationship. The first and second pipes (10, 20) include annular recesses (22, 23) which form an annular cavity when the second pipe is inserted into the first end of the first pipe. A flexible spline (25) is located within this annular cavity to provide reversible restraint to the bell and spigot connection (100). A fluid-tight gasket (30) is also provided distally from the spline (25). This gasket (30) can be located in an annular recess (24) disposed in the outer surface of the second pipe (20) or along the inner surface of the first pipe (10), or alternatively, at about the distal end of the second pipe to provide a fluid-tight seal.</p> |
