LID FOR A VACUUM RECEPTACLE AND, CHECK VALVE AND PACKING FOR THE LID

摘要

PURPOSE: A lid of a vacuum container including a packing material, a check valve, and the packing material are provided to maintain the shape of the check valve even when high back pressure is applied to the inner part of the vacuum container and to keep high degree of vacuum for a long time. CONSTITUTION: A lid(100) of a vacuum container comprises: a lid body(110) including a valve mounting part having an air connecting cavity(114) and a valve joint(116) and a packing mounting part(120); an elastic material part(132) surrounding the air connecting cavity; a valve body(136) including a hard core material(134); a check valve(130) including a separation protective part(138) for the valve body; a body joint(152) which is combined with the packing mounting part; and an adhesive part(154) which is close to an inlet of the container body and blocks external air.