Connector for assembling two riser segments, comprising an external locking ring and removable pins

A connector for assembling two riser sections, comprising a first main tube element extended by a male connector element, a second main tube element extended by a female connector element, the male connector element having a male portion fitting into a female portion of the female connector element so as to connect the two main tube elements, a locking ring arranged around the main tube elements for locking together the male connector element and the female connector element, the locking ring being provided radially immediately adjacent an area where the male portion of the male connector element fits into the female portion of the female connector element, the locking ring comprising a first and a second series of studs on the inner face thereof, and the male and female connector elements respectively comprising on the outer face thereof a third and a fourth series of studs respectively cooperating with the first and second series of studs, and at least one removable pin arranged in the locking ring and cooperating with a stud of the third or the fourth series of studs so as to translationally block the locking ring with respect to the male or female connector element, and the studs of the first and second series of studs project over identical angular ranges.