CN201208198Y - Glass incubation liner - Google Patents

Abstract

The utility model relates to a modified glass vacuum bottle with openings at the two ends, particularly to a glass vacuum bottle in which both the two opening ends are necking openings. No matter which end of the bottle is sealed, when the bottle is filled with water, the pressure produced by water and borne by the bottle opening at the sealed end, is downward pressure; and the outward tension is borne by the bottle wall at the necking part, thereby greatly reducing the pressure borne by the bottle opening at the sealed end. In addition, the damage rate of the utility model during installation and use is greatly reduced.

Description

A kind of glass vacuum flask

Technical field the utility model relates to a kind of improved glass vacuum flask, particularly two ends all has opening and two openends to be the glass vacuum flask of necking down opening.

The background technology patent No. is ZL200520000734.6, and the utility model name is called: in a kind of patent of thermo jug, design the glass liner of thermos that all there is opening at a kind of two ends.Because one of them opening adopts the method in the base plane upper shed, in assembling process, because it is limited that double glazing bears pressure, the excessive glass liner that causes of pressure breaks, and pressure is little poorly sealed, the infiltration phenomenon occurs, with when filling water in the glass liner, the downward pressure of water and the power of outside tension force both direction will be born in its bottom, add the outside tension force of seal, and glass liner breaks easily in the use.

Utility model content the purpose of this utility model is: provide a kind of two ends of architecture advances that the glass vacuum flask of opening is all arranged.Avoid in assembling process, because it is limited that double glazing bears pressure, the excessive glass liner that causes of pressure breaks, pressure is little poorly sealed, the infiltration phenomenon occurs and when fill water in the glass liner, will bear the downward pressure of water and the power of outside tension force both direction bottom it, add the outside tension force of seal, the crackly phenomenon of glass liner in the use.

The utility model realizes that as follows promptly two ends all have the glass vacuum flask of opening to adopt two openends to be the structure of necking down opening.So, not duct occlusion its where hold bottleneck, when filling water in the glass liner, the power of blind end water generates that bottleneck bears is mainly downward pressure, and outside tension force be retracted the part the glass liner wall bear, so the pressure that the blind end bottleneck bears greatly reduces, the probability of the utility model breakage when assembling or use greatly reduces.

Description of drawings is below with reference to example in detail

Fig. 1 is a concrete structure cutaway view of the present utility model.

Specific embodiments is with reference to Fig. 1, and two ends all have the glass vacuum flask 1 of opening to adopt two openends to be the structure of necking down opening.A sealing end bottleneck wherein, when filling water in the glass liner, the power that the blind end bottleneck bears water generates is mainly downward pressure, and outside tension force is retracted the glass liner wall of part and bears, the pressure that the blind end bottleneck bears greatly reduces.

The probability of the utility model breakage when assembling or use greatly reduces, and easy for installation.

Claims (1)

1. glass vacuum flask, all there is opening at two ends, it is characterized in that glass vacuum flask (1) two openend is the structure of necking down opening.

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