FIELD: packaging industry.
SUBSTANCE: invention relates to means for sealing bottles, but can be used for sealing other containers for bulk and liquid products. The safety plug 1 is mounted on the bottle 2 with an annular projection 3, radial ribs 4. The safety plug 1 consists of a depositing funnel 5 with an element 6 fixed with respect to the bottle, a lid 7 with a closing sleeve 8, a metal cap 9, a gasket 10 with a seat 11 of the valve 12. The closing sleeve 8 of the lid 7 has near its base an annular groove 13 on the inner side. The annular groove 13 imparts to the closing sleeve 8 the additional resilient elasticity. Increased elasticity within the elastic deformations makes it possible to create practically unchanged tightness in conjunction of the closing sleeve 8 of the lid with the element 6 fixed relative to the bottle, which increases the durability of the seal between them.
EFFECT: improvement of sealing.
1 dwg
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