CN201469054U

CN201469054U - Thermos flask with leakproof bottle mouth

Info

Publication number: CN201469054U
Application number: CN2009201434197U
Authority: CN
Inventors: 徐峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-20
Filing date: 2009-03-20
Publication date: 2010-05-19
Anticipated expiration: 2019-03-20

Abstract

The utility model discloses a thermos flask with a leakproof bottle mouth, comprising a flask liner and a shell, wherein the opening of the flask liner is provided with a hollow hopper-shaped leakproof ring, and the upper part thereof is provided with an elliptical or round horn mouth, and the lower part thereof is a cylinder; the cylinder part is tightly sheathed at the opening of the flask liner by utilizing self elasticity, or the periphery of the cylinder is provided with a clamp spring or a locking screw sleeve so as to lead the cylinder to be tightly combined with a bottle neck 5, thus ensuring no gaps therein. The neck of the shell is lower than the opening of the flask liner, and the leakproof ring is not connected with the shell or fixedly connected at the neck of the shell by threads. The leakproof ring is tightly combined with the bottle neck by utilizing the self elasticity of the ring body so as to be gapless; and water in the flask can not enter the gap between the flask liner and the shell when in pouring water, thus having no water leakage.

Description

A kind of bottleneck leakproof vacuum flask

Technical field

The utility model relates to a kind of vacuum flask, is specifically related to a kind of vacuum flask that prevents that bottleneck leaks when pouring.

Background technology

Ordinary thermos bottle shell is in the market made by plastics or metal, the harder nonelastic distortion of quality.Outer faucal is concordant substantially with the glass liner of thermos mouth, or outer faucal is a little more than the glass liner of thermos mouth, though be provided with sealing ring therebetween, though this sealing ring is seamless with bottle bag edge, but it can't accomplish to connect with the seamless peace of outer faucal, so the phenomenon that water drips out from the slit between glass liner of thermos and the shell still can take place during pouring, not only inconvenient user uses, and has also wasted precious water resource.

The utility model content

At the deficiencies in the prior art, bottleneck vacuum flask water-tight, easy to use when the purpose of this utility model has been to provide a kind of pouring.

The utility model is achieved through the following technical solutions: a kind of bottleneck leakproof vacuum flask, comprise glass liner and shell, and establish a leakproof circle at bottleneck, to combine closely with bottleneck, the eck of described shell is lower than bottle bag edge, is positioned at leakproof circle below.

Described leakproof circle is the hollow funnel shaped, and top is horn mouth, and the bottom is a cylinder, and the cylinder part tightly is enclosed within bottle bag edge.Leakproof circle horn mouth is ellipse, duck's egg shape or circle.

Described leakproof circle bottom cylinder outer periphery jump ring or locking swivel nut.

Described leakproof circle does not link to each other with shell.

Establishing external screw thread on the bottom cylinder of described leakproof circle is connected with shell shell neck.

Described leakproof circle is injection molded by elastoplast.

The beneficial effects of the utility model are: the utility model adopts by the funnel shaped leakproof circle of the injection molded hollow of elastoplast, directly is enclosed within the bottle mouth position of glass liner of thermos, utilize circle body self elasticity or cylinder outer periphery jump ring or locking swivel nut.Make it to combine closely, and outer faucal is positioned at the below of leakproof circle with bottleneck, not can with its generation slit, and so can not leak, easy to use.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the utility model embodiment one structural representation;

Fig. 2 is the utility model embodiment two structural representations;

Fig. 3 is the utility model round speaker mouth leakproof circle vertical view;

Fig. 4 is the utility model elliptical horn mouth leakproof circle vertical view;

Fig. 5 is the utility model duck's egg shape horn mouth leakproof circle vertical view;

The specific embodiment

Embodiment one

As shown in Figure 1, a kind of bottleneck leakproof vacuum flask, comprise glass liner 2 and shell 1, establish one by the injection molded hollow funnel shaped leakproof circle 3 of elastoplast at bottleneck 4, leakproof circle 3 tops are horn mouth, the bottom is a cylinder, and cylinder partly utilizes the elasticity of self tightly to be enclosed within bottle bag edge 4 places, or makes it to combine closely with bottleneck 5 at cylinder outer periphery jump ring or locking swivel nut.The eck of shell 1 is lower than bottle bag edge 4, is positioned at below the leakproof circle 3, and leakproof circle 3 does not link to each other with shell 1.Leakproof circle 3 tops are oval duck's egg shape or circular horn mouth, can adopt elastoplast injection molded, and its shape is shown in Fig. 3-5.

Embodiment two

The bottom cylinder that this routine difference is a leakproof circle 3 is established external screw thread and is fastened on shell 1 shell neck.As shown in Figure 2, all the other are all identical.Leakproof circle 3 tops are ellipse, duck's egg shape or circular horn mouth, shown in Fig. 3-5.

Leakproof circle 3 utilizes the elasticity of self to combine closely with the bottleneck 5 of glass liner 2, or makes it to combine closely with bottleneck 5 at cylinder outer periphery jump ring or locking swivel nut, guarantees not have the gap therebetween.In addition, the eck of shell 1 is below leakproof circle 3, and the water during pouring in the bottle can not enter into the slit between glass liner 2 and the shell 1, just can not cause the vacuum flask water clock yet.

Claims

1. a bottleneck leakproof vacuum flask comprises glass liner and shell, it is characterized in that establishing a leakproof circle at bottleneck, combines closely with bottleneck, and the eck of described shell is lower than bottle bag edge, is positioned at leakproof circle below.

2. bottleneck leakproof vacuum flask according to claim 1 is characterized in that described leakproof circle is the hollow funnel shaped, and top is horn mouth, and the bottom is a cylinder, and the cylinder part tightly is enclosed within bottle bag edge.

3. bottleneck leakproof vacuum flask according to claim 1 and 2 is characterized in that described leakproof circle bottom cylinder outer periphery jump ring or locking swivel nut.

4. bottleneck leakproof vacuum flask according to claim 2 is characterized in that leakproof circle horn mouth is ellipse, duck's egg shape or circle.

5. bottleneck leakproof vacuum flask according to claim 2 is characterized in that described leakproof circle does not link to each other with shell.

6. bottleneck leakproof vacuum flask according to claim 2, the bottom cylinder that it is characterized in that described leakproof circle is established external screw thread and is connected with shell shell neck.

7. bottleneck leakproof vacuum flask according to claim 1 and 2 is characterized in that the leakproof circle is injection molded by elastoplast.