Waterproof connector

A waterproof connector comprising:

• a male housing part,
• a female housing part adapted to fit on said male housing part, and
• an "O" ring made of rubber or the like elastic material resiliently pressed between said housing parts,
• said male housing part having a fitting portion constituted by an inner sleeve around which said "O" ring is wound and a large-diameter sleeve portion which is formed at a predetermined radial distance from said inner sleeve,
• said female housing part having a cylindrical wall defining the opening for receiving said male housing part,
• said cylindrical wall being fitted in the gap between said inner sleeve and said large-diameter sleeve portion of said male housing part,
• said "O" ring being pressed between the outer peripheral surface of said inner sleeve and the inner peripheral surface of said cylindrical wall of said female housing part,
• said male housing part includes said inner sleeve and an outer sleeve formed as separate bodies,
• said inner sleeve having an annular protrusion formed on the outer periphery of one open end thereof,
• said outer sleeve including said large-diameter sleeve and a small-diameter sleeve portion having an inside diameter substantially equal to the outside diameter of said inner sleeve and a thickness substantially equal to the projection length of said annular protrusion,
• said large-diameter sleeve portion being connected to said small-diameter sleeve portion through an annular wall and being extended forwardly beyond an opening of said small-diameter sleeve portion with a predetermined radial distance from the latter, and
• said male housing part being provided with an annular recess for receiving said "O" ring between said annular protrusion of said inner sleeve and said open end of said small-diameter sleeve portion of said outer sleeve.