| 摘要 |
A pipe-fastening structure for an evaporation valve having a housing and a gas extraction path formed within the housing comprises a cylindrical connecting member, fixed to the housing, with first engaging portion and an inner space, a stopper member having a cylindrical inner member and second engaging portion engaging with the first engaging portion in two stages, a variable member, formed at part of the inner member in a cylindrical shape with a diameter capable of enlargement, channels formed at the inner wall of the variable member, a pipe for connecting evaporation valves and a large diameter bulge section formed in the vicinity of an end of the pipe. Locations of the inner member other than the variable member fit closely with the cylindrical inner wall of the connecting member and the first and second engaging portions undergo first stage engagement.
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