| 摘要 |
<p>The present invention relates to a pipe coupling 1 comprising a main body 2, preferably in a cast material, with an axial opening 3 for receiving a pipe end 11, and a first and a second lateral openings 4a,4b; a split ring 7 for releasably holding said pipe end 11 within said axial opening 3; and a circumferential groove 5 within said axial opening 3 for receiving said split ring 7 and holding it in an axial direction, wherein said first and second lateral openings 4a,4b are connected to said circumferential groove 5. A maximum distance D between said first and second lateral openings 4a,4b is not shorter than an outer diameter D' of said split ring 7 in an unstrained state, a minimum distance s between said two lateral openings 4a,4b is not longer than a minimum width w' of a split 8 in said split ring 7 in an unstrained state, and at least one of said lateral openings 4a,4b has a width w which is substantially larger than said minimum width w' of the split 8 in said split ring 7 in an unstrained state. The present invention also relates to a method for receiving and releasably holding a pipe end 11 in this pipe coupling 1, comprising the steps of inserting said split ring 7, in an unstrained state, into said circumferential groove 5 through said first or second lateral opening 4a,4b; spreading said split 8 open so as to open up said split ring 7; inserting said pipe end 11 into said axial opening 3 of the main body 2 beyond the split ring 7 in the circumferential groove 5; and releasing said split 8, so as to close said split ring 7 over said pipe end 11.</p> |
