Airtight small-winding-moment wire shaft penetrating device

The invention discloses an airtight small-wire winding moment wire shaft penetrating device which comprises a first wire shaft penetrating module installed in an inner cavity of a pitch shaft system and a second wire shaft penetrating module installed in an inner cavity of an azimuth shaft system, the pitch shaft system is structurally connected with a photoelectric pod bridge and an optical cabin, and the azimuth shaft system is structurally connected with the optical cabin and an electronic cabin. The first wire shaft penetrating module comprises an inner wire passing plate and an outer wire passing plate, and a first wire penetrates through the inner wire passing plate and the outer wire passing plate. The second wire shaft penetrating module comprises a wire penetrating support and a wire bunching plate, a second wire penetrates through the wire penetrating support, and the end of the second wire is fixed to the wire bunching plate. According to the invention, the defects of large volume and heavy weight