A connector device according to an embodiment of the present technology includes a first connector and a second connector. The first connector has a plurality of locking groove parts provided on a first peripheral surface thereof and a plurality of unlocking parts provided on the first peripheral surface. The plurality of locking groove parts and the plurality of unlocking parts are arranged in a circumferential direction of the first peripheral surface with a positional displacement from each other. The second connector has a plurality of elastic parts provided on a second peripheral surface fitted into the first peripheral surface and held by the plurality of locking groove parts, respectively. The plurality of elastic parts are configured to be elastically deformable in a radial direction of the second connector body when rotating in a circumferential direction of the second connector body between the plurality of locking groove parts and the plurality of unlocking parts.