| 摘要 |
The disclosure relates to an expansion joint for metallic pipes, the joint comprising a reinforced rubber body in the form of an annular loop having enlarged lateral edge portions and a pair of locking members for connecting the edge portions of the body to adjacent portions of the pipe ends. Each ring is provided with an undercut groove to receive a portion of the enlarged lateral edge portion. Each locking ring comprises a pair of annular elements disposed in facing contact and interlocked. The first annular element has a greater thickness and is directed towards the outer side of the rubber body. The second element extends outwardly beyond the innermost edge of the first element to thus form the undercut groove.
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