Hermetic structure

摘要

Problem to be solved: to provide a sealing structure capable of improving the sealing property.Gasket 400.An annular member having an annular groove 410 is formed.A state in which a clearance is formed between the groove bottom 411 of the annular groove 410 and the tip 221 of the annular projectionIn the state where the annular projection 220 enters the annular grooveThe gasket 400 is fixed to the lid 200.If lid 200 is closed,Gasket 400Side wall 111b of annular recess 111Without 111C,This is characterized in that it is in contact with the bottom 111a of the annular recess 111.Diagram