Anti-vibration connector coupling with an axially movable ratchet ring

A connector coupling that comprises a connector body, a first collar coupled to the connector body, and a second collar surrounding the first collar. The first collar has a plurality of locking members. The second collar is rotatable with respect to the first collar between first and second positions. A ratchet ring is supported by the connector body and has a plurality of locking members corresponding to the plurality of locking members of the first collar. The ratchet ring being axially movable with respect to the connector body between an engaged position and a disengaged position. A biasing member is supported by the connector body adjacent the ratchet ring. The biasing member biases the ratchet ring in the engaged position. Rotating the second collar from the first position to the second position moves the ratchet ring from the engaged position, in which the plurality of locking members of the ratchet ring engage the plurality of the locking members of the first collar, to the disengaged position, in which the plurality of locking members of the ratchet ring are spaced from the plurality of locking members of the first collar, thereby allowing the first collar to rotate with respect to the connector body.