CN2693679Y

CN2693679Y - Three-dimensional sealing bottle cap

Info

Publication number: CN2693679Y
Application number: CN 200420021451
Authority: CN
Inventors: 李威
Original assignee: 史雯
Priority date: 2004-03-31
Filing date: 2004-03-31
Publication date: 2005-04-20
Anticipated expiration: 2014-03-31

Abstract

The utility model provides a three-dimensional sealing bottle cap. The inner top surface of the bottle cap is respectively provided with three concentric concave rings which regard the center of the top surface as a circle center and are sealed with the bottleneck in a three-dimensional mode, that is to say, the sealing concave ring of an inner plug, the sealing concave ring of a top surface, and the sealing concave ring of an outer opening are respectively arranged on the inner top surface of the bottle cap from interior to exterior; wherein, the sealing concave ring of the inner plug is embedded on the inner wall of the bottleneck and is inclined towards the inner wall of the bottleneck, and the outer wall surface is provided with a flange which is convex towards the inner wall of the bottleneck; the sealing concave ring of the top surface is contacted on the top of the bottleneck; the sealing concave ring of the outer opening is a convex ring which is inclined towards the center of the top surface of the bottle cap and is tightly fastened on the outer wall of the bottleneck. As the inner top surface of the utility model is integrally formed with the sealing concave ring of the inner plug, the sealing concave ring of the top surface, and the sealing concave ring of the outer opening, the three-dimensional sealing of the bottleneck is achieved, and that is to say, the sealing of the inner wall, the top surface, and the outer wall is achieved; accordingly, the three-dimensional sealing bottle cap has better sealing effect; in addition, as the bottle cap is formed by one-step integrally injection molding, the production investment cost is low, and the manufacturing technique is simple.

Description

Tri-dimensional sealed bottle cap

Technical field

The utility model relates to a kind of bottle cap that is applied on heat filling beverage PET (polyester section) bottle, i.e. beverage seal bottle cap.

Background technology

Existing application is irritated beverage PET (polyester section) bottle in heat, its canned range of temperatures is between normal temperature to 95 degree centigrade, for sealing fully and the beverage that guarantees bottle interior air undergoes no deterioration, usually the seal ability when elevated temperature heat is poured into of bottle cap is had relatively high expectations.

The prior beverage seal cover cap, for example: carbonic acid and fruit drink bottle cap, it is by increasing the bottleneck top seal effect that a PE (polyethylene) pad reaches bottle in the bottle cap bottom.Whole bottle cap is divided into body of the bottle lid and pad two parts are produced, and both finish production by twice processing.Therefore, the technology of producing this type of (soda and fruit drink) bottle cap still relatively bothers, and cost of investment is higher relatively.

Summary of the invention

The purpose of this utility model is to provide that a kind of production cost of investment is low, manufacturing process is simple and the better tri-dimensional sealed bottle cap of sealing effectiveness.

A kind of tri-dimensional sealed bottle cap provided by the utility model, comprise the negative thread that matches with external thread of bottleneck that the bottle cap internal perisporium is provided with, it is characterized in that: it is that three of the garden heart carry out tri-dimensional sealed concentric raised circle with bottleneck respectively that described bottle cap inner top surface is respectively equipped with bottle cap end face center, plug seals protruding circle in promptly being respectively from the inside to the outside, end face seals protruding circle and collar extension seals protruding circle, wherein: the protruding circle of plug sealing is embedded at described bottleneck inwall in described, tilt to the bottleneck inwall, the angle of inclination is α, and its outside wall surface is provided with a bead to bottleneck inwall projection; It is the top that presses at described bottleneck that described end face seals protruding circle; It is that the angle of inclination is β to the centroclinal protruding circle of bottle cap end face that described collar extension seals protruding circle, and it is held in the outer wall of described bottleneck.

Above-mentioned tri-dimensional sealed bottle cap, wherein: interior plug seals protruding circle, end face and seals protruding circle and collar extension to seal protruding circle be integrated with bottle cap.

Above-mentioned tri-dimensional sealed bottle cap, wherein: 90 °＜α＜105 °.

Above-mentioned tri-dimensional sealed bottle cap, wherein: 0 °＜β＜20 °.

Adopted above-mentioned technical solution, promptly by plug seals protruding circle in the bottle cap inner top surface is integrally formed, end face seals protruding circle and collar extension seals protruding circle, making bottleneck reach three-dimensional is the sealing of inwall, end face and outer wall, thereby has better sealing effectiveness.In addition, the utility model is because by the integrated through injection molding moulding, the production cost of investment is low, manufacturing process is simple.

Description of drawings

Fig. 1 is the section partial enlarged drawing of the utility model bottle cap.

The specific embodiment

As shown in Figure 1, the utility model, promptly tri-dimensional sealed bottle cap comprises that bottle cap internal perisporium 14 is provided with negative thread 15, itself and bottleneck 2 outside threads 21 match and screw.

It is that three of the garden heart carry out tri-dimensional sealed concentric raised circle with bottleneck respectively that bottle cap inner top surface 25 is respectively equipped with bottle cap end face center, plug seals protruding circle 11 in promptly being respectively from the inside to the outside, end face seals protruding circle 12 and collar extension seals protruding circle 13, wherein: it is to be embedded at bottleneck inwall 22 that interior plug seals protruding circle 11, tilt to bottleneck inwall 22, the angle of inclination is α, 90 °＜α＜105 °, its outside wall surface is provided with a bead 111 to bottleneck inwall projection; It is the tops 23 that press at bottleneck 2 that end face seals protruding circle 12; It is that the angle of inclination is β to the centroclinal protruding circle of bottle cap end face that collar extension seals protruding circle 13, and 0 °＜β＜20 °, it is held in the outer wall 24 of bottleneck 2.

In the protruding circle 11 of plug sealing, end face seal protruding circle 12 and collar extension to seal protruding circle 13 be integrated with bottle cap.

Under the combined action of above-mentioned three kinds of protruding circles of sealing, under 40 °～95 ° conditions of the canned temperature of beverage, behind the canned PET bottle, the utility model bottle cap will play complete leak free effect.

Claims

1. tri-dimensional sealed bottle cap, comprise the negative thread that matches with external thread of bottleneck that the bottle cap internal perisporium is provided with, it is characterized in that: it is that three of the garden heart carry out tri-dimensional sealed concentric raised circle with bottleneck respectively that described bottle cap inner top surface is respectively equipped with bottle cap end face center, plug seals protruding circle in promptly being respectively from the inside to the outside, end face seals protruding circle and collar extension seals protruding circle, wherein:

The protruding circle of plug sealing is embedded at described bottleneck inwall in described, tilts to the bottleneck inwall, and the angle of inclination is α, and its outside wall surface is provided with a bead to bottleneck inwall projection;

It is the top that presses at described bottleneck that described end face seals protruding circle;

It is that the angle of inclination is β to the centroclinal protruding circle of bottle cap end face that described collar extension seals protruding circle, and it is held in the outer wall of described bottleneck.

2. a kind of tri-dimensional sealed bottle cap according to claim 1 is characterized in that: the protruding circle of plug sealing, end face seal protruding circle and collar extension to seal protruding circle are integrated with bottle cap in described.

3. a kind of tri-dimensional sealed bottle cap according to claim 1 is characterized in that: 90 °＜α＜105 °.

4. a kind of tri-dimensional sealed bottle cap according to claim 1 is characterized in that: 0 °＜β＜20 °.