Elongated vibrator made in several detachable elements assembled with each other through secured connections

An elongated vibrator made in several detachable elements, assembled end to end, this vibrator including a tubular element comprising one or more sections, the upper end of which is provided with means for suspension from a hoisting and/or guiding machine and the lower end of which is connected to an endpiece successively including a damper-isolator of vibrations, a generator of vibrations and a tip, at least one of the assemblies of the detachable elements involving a plurality of fixing screws, the heads or the nuts of which are accessible by means of at least one cavity provided in at least one of said elements,

• said vibrator further comprising at least one removable locking part which engages into said cavity by bearing upon said heads or said nuts, as well as means for attaching this locking part inside the cavity so as to ensure the captivity of said screws and to avoid that the assembly may be dissociated during the use.