| 摘要 |
A connecting device for tubular elements ( 1 ), for assembling the tubular elements into modular structures, includes a plurality of inserts ( 22 ), each insert having an expandable portion ( 2 ) and a head ( 3 ). Shells ( 9 ) are provided, each shell having a plurality of housings ( 10 ) having a shape approximately complementary to a shape of the head ( 3 ). The head may be fixed to a related housing ( 10 ). The insert ( 22 ) is locked into an end of the tubular element ( 1 ), when the expandable portion ( 2 ) is inserted into the end of the tube, and expanded. The tubular element ( 1 ) is connected to the shell ( 9 ), when the head ( 3 ) is in the locked condition, the tubular element ( 1 ) being engaged in a related housing ( 10 ) of the shell, and fixed to the shell by a fixing device. |
