Coupling for joining two hose sections comprises a socket sleeve with helical grooves on its conical inner surface and an insert sleeve with complementary protrusions on its conical outer surface

摘要

The coupling, in particular for joining two swimming pool hose sections, comprises a socket sleeve with helical grooves on its conical inner surface, and an insert sleeve with complementary protrusions on its mating conical outer surface. The coupling is tightened and loosened by rotation of the two sleeves relative to one another.