| 摘要 |
<p>A mechanism for coupling together a first tubular 1 and a second tubular 3 is described. The first tubular 1 has a first substantially frustoconical mating surface provided at an end. The first mating surface has formed thereon a plurality of circumferentially extending and axially spaced grooves 2. The second tubular has a second substantially frustoconical mating surface provided at an end, the second mating surface having formed thereon a plurality of circumferentially extending and axially spaced ridges 4. Respective ridges 4 and grooves 2 are configured to interlock with one another to sealingly couple the first and second tubulars together such that the interlocking is effected by elastic deformation of the mating surfaces as the surfaces are pushed axially together. The plurality of grooves 2 and ridges 3 have an aperiodic spacing along a main axis of the tubulars so that wherein a spacing of at least one corresponding interlocking groove and ridge is such that a width of the groove is different to a width of the corresponding ridge.</p> |
