| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water sterilization device in which reduction of production costs and assembly man-hours can be achieved, and a state of an O ring can be performed by visual inspection at assembly.SOLUTION: An outer cylinder case 2 of a water sterilization device 1 is composed by a cylindrical member in which a longer direction both ends of the same are opened, an apertural area inner periphery of the outer cylinder case 2 is fitted by a ring-shaped O ring cap (holding member) 5 through O rings 11, 12 supported by a circumference of the same, the O ring cap 5 is made to perform penetration support to a protective pipe 3 and the longer direction end of a UV discharge lump 4 accommodated by the same, and these penetration parts are sealed by an O ring 11 held at an inner periphery of the O ring cap 5, a socket cap (lid member) that fits to the apertural area inner periphery of the outer cylinder case 2 is hit from an outside of the O ring cap 5, the socket cap 6 is fixed by a C ring 13 that is fitted to the apertural area inner periphery of the outer cylinder case 2.</p> |
