| 摘要 |
The present invention relates to a mechanical joint (1), particularly for connecting a chain (C) with a hollow floating structure (S), also known as "sponson", in lifting a wreck (R) from sea bottom (F), said mechanical joint (1) comprising: a male element (2) comprising a pin (4) being directed according to a first predetermined direction (D') and comprising a first portion (4c), which is arranged at a free end of said pin (4) and which has a first maximum section transversal to said first predetermined direction (D'), and a second portion (4b) which is adjacent to said first portion (4c) and has a second section transversal to said first predetermined direction (D') which is smaller than said first maximum section; and a female element (3) directed according to a second predetermined direction (D") substantially corresponding with said first predetermined direction (D') when said female element (3) is coupled with said male element (2), said female element (3) having a cavity (11) communicating with the exterior through a first opening (12) and configured to receive, during use, said pin (4), said female element (3) comprising connecting means (12a, 12b) which are arranged in said cavity (11) and movable between an opening position, where said connecting means (12a, 12b) interact with said first portion (4c) of said pin (4), and a closing position, where said connecting means (12a, 12b) are in correspondence to said second portion (4b) of said pin (4) and interact with transition between said first portion (4c) and said second portion (4b) such as to provide a connection between said male element (2) and said female element (3) such that, in said closing position, mutual separation between said male element (2) and said female element (3) by moving away from each other is prevented and mutual rotation between said male element (2) and said female element (3) about said second predetermined direction (D") is enabled. |
