Underwater connector assembly

(57) A summary underwater connector assembly is equipped with the plug unit and socket unit (22, 20) engaging of clutch of the attachment and detachment of can be made free, Each unit has at least one hole part (26, 72) for accommodating the light or the electric lead (28, 78) connected to the terminal (30, 80) in the front-of-solvent part of the hole part, and when both units are connected mutually, engaging of clutch of each terminal is carried out. While is prolonged from a terminal through a hole part, and a shaft (36) forms an annular chamber between a shaft and a hole part. The annular chamber between a shaft and a hole part is equipped with the annular seal (46) of elastic material. A seal has a larger outer diameter (50) than the inside diameter (49) smaller than the outer diameter and hole part diameter of a shaft, and carries out engaging of clutch to the smooth continuation outside cylindrical surface of a shaft, a plug unit and a lycee -- a shaft is made to 摺動 to a seal, maintaining the 封止 engaging of clutch between a seal and a shaft on the occasion of engaging of clutch with a プタクル unit