Wire adapter and optical machine

The embodiment of the utility model provides a wire adapter and an optical machine, and the wire adapter is fixed on a housing and is used for connecting cables inside and outside the housing. The wire adapter comprises a first connector, a second connector and a sealing sleeve; the sealing sleeve is arranged outside the first connector and the second connector which are fixedly connected in an inserted mode in a sleeving mode, and a closed structure is formed by the sealing sleeve, the first connector and the second connector; a threading hole is formed in the shell, and the shape of the threading hole is matched with the shape of the outer wall of the sealing sleeve; the outer wall of the sealing sleeve is in close contact with the inner wall of the threading hole, so that the wire adapter is clamped in the threading hole; the first connector comprises a first wiring terminal; the second connector comprises a second wiring terminal; the first end of the first wiring terminal and the first end of the second wiring terminal are respectively positioned inside and outside the shell; and the second end of the first wiring terminal and the second end of the second wiring terminal are electrically connected in the wire adapter, so that the sealing performance of the shell is improved.