CN2032992U - Plastics sealed bottle lid - Google Patents

Abstract

The utility model discloses a plastics sealed bottle lid, which can be particularly used for sealing bottles filled with alcohol and volatility material. A plurality of thin and elastic straw hat flanges are fixed on the cylinder inserting into the bottle mouth of the general plastic bottle lids; the utility model can avoid the defects that the general plastic bottle lid can not be sealed tightly and can keep the long-term and stable sealing performance; the production cost is the same with the production cost of the general plastic bottle lid.

Description

Plastics sealed bottle lid

The utility model is to be used for the leak free plastic bottle closure, especially for drinks and have in the bottle of volatile matter sealing and preserve.

General plastic seal bottle cap has inner core and fastening structure, and what have is divided into two, and what have is integrated.But they rely on fastening force to make bottleneck and plastic bottle closure pinch-off seal; Rely on inserting inner core in the bottleneck and bottleneck inwall is adjacent to and plays sealing function.No matter but glass bottle or plastic bottle be because the factor on the manufacture craft all has the bad mold joint of protrusion bar none on bottleneck top, cause the compressing of plastic bottle closure and bottleneck top can not be tight, easily gas leakage.In addition because glass bottle and all blow moldings in mould of plastic bottle, thus the external diameter of bottleneck all error is little, and internal diameter just can't guarantee certain size, so national standard has requirement to the bottleneck external diameter, and internal diameter is not required.Like this, being adjacent to of the heart core of plastic bottle closure originally and bottleneck inwall just can not be tight, so sealing property just can't guarantee.

The purpose of this utility model exactly in order to overcome above-mentioned shortcoming, guarantees being sealed with of bottle cap and bottleneck and can maintain a long-term stability.

This plastic bottle closure is on the basis of normal tape inner core plastic bottle closure, which floor " straw hat edge " periphery of the garden column casing shape inner core in inserting bottleneck increases, marginal ridge will approach and have certain elasticity, contact tightly with the bottleneck inwall with assurance, because the bottleneck inwall does not have bad mold joint, one deck " straw hat edge " just can form a sealing layer.Three layers " straw hat edge " are generally arranged, can form three sealing layers, can be to guarantee requirement to sealing property.

The utility model is than general plastic bottle closure, and sealing property is reliable and stable, not only can adapt to the big characteristics of internal diameter of the bottleneck error, and is not subjected to fastening loosening influence.Manufacturing cost and general bottle cap are substantially quite or low slightly.

The accompanying drawing I has been represented an embodiment of the present utility model.

This half-sectional view I has general bottle cap (1), garden column casing (2), straw hat edge (3)

Claims (2)

1, is used for the sealing, particularly splendid attire drinks of bottle and have the plastic bottle closure of the glass bottle of volatile matter, has fastening and the bottleneck hermetically-sealed construction, the inner core that inserts in the bottleneck is arranged, it is characterized in that the periphery of inner core has at least one straw hat edge.

2,, it is characterized in that inner core can be a garden column casing type according to the plastic bottle closure of claim 1.

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