CN2601962Y - Bottle cap - Google Patents

Abstract

The utility model discloses a bottle cap, which can be covered on a sealing surface of a container in a rotating way, and comprises a cap body, having a cap section and a ring section articulated with the cap section; an anti-infiltration ring, downwards extended from the inner surface of the cap section, so that the anti-infiltration ring is pressed tightly to the inner edge of the sealing surface when the cap body is covered on the sealing surface of the container in a rotating way; A pressing ring, is arranged between the anti-infiltration ring and the ring section of the cap body, and downward extended from the inner surface of the cap section, so that the pressing ring is pressed tightly to the outer edge of the sealing surface when the cap body is covered on the sealing surface of the container in a rotating way; and at least a downward pressed leak-proof loop, is arranged between the anti-infiltration ring and the pressing ring, and downward protruded from the inner surface of the cap section, so that the top section of the sealing surface is oppressed when the cap body is covered on the sealing surface of the container in a rotating way. The stronger pressing pressure can be generated when the bottle cap is used, to make the bottle cap tightly pressed the sealing surface of the container, and the leak-proof sealing effect of the three surfaces of the outer edge, inner edge, and top surface, etc. of the sealing surface is achieved.

Description

A kind of bottle cap

Technical field

The utility model is about a kind of bottle cap, particularly about a kind of bottle cap of spiral cover on the plastic container bottleneck that be used for.

Background technology

Commercially available beverage products such as fruit juice, carbonated drink, milk, teas and lactic acid generally are to be contained in the plastic container through behind the high temperature sterilization at present, and sealing vanning subsequently is transported to each point of sale again.Rotten or spill for preventing that liquid in the container from spilling, prevent that by the slot between bottle cap and the bottleneck the gas that gas releases from the aperture or bottle is outer in the bottle from entering the liquid in containers that situation caused such as container from the aperture, thus must guarantee bottle cap hermetically spiral cover at the bottleneck of container.

At present the lid of existing bottle cap is to be provided with screw thread 120 in the inboard of bottleneck 100 and lid 110 promptly as shown in Figure 4 on the market, also installed soft anti-leakage pad 130 additional on the inner top surface of this lid 110 after, directly be tightened on this bottleneck 100 by lid 110.

Because at present lid 110 there is no leakage-proof structure, it only uses anti-leakage pad 130 to keep the sealing of 100 of lids 110 and bottlenecks.General this anti-leakage pad 130 can keep soft characteristic in the high temperature sterilization process, but in a single day temperature reduces (for example putting into cold store or refrigerator), and these anti-leakage pad 130 meeting hardening at low temperatures make and promptly can't combine closely between this anti-leakage pad 130 and the bottleneck 100.And, for being put into this lid 110, this anti-leakage pad 130 also to increase manufacturing course.Therefore, this lid 110 not only improves manufacturing cost, time-consuming, effort, also can't reach the purpose that the liquid that prevents in the container is rotten or spill.

The inventor in November 8 nineteen ninety in the TaiWan, China application and the patent of having authorized, the patent No. is 090219176, this patent is a lid 20 as shown in Figure 5, this lid 20 is and addresses the above problem and design.It is in lid 20 inboards, with respect to bottleneck 100 inner edges outside; a multiple tooth shape cutoff collar 22 is set; in these cutoff collar 22 outsides, with respect to bottleneck 100 places; what be provided with a W profile of tooth presses down leakproof circle 21; in the relative position of these lid 20 medial surfaces and bottleneck 100; have a profile of tooth side direction leakproof circle 23, form the multilayer protection, to keep the sealing state of container by above crown.

Yet, above-mentioned lid 20 is to lock this bottleneck 100 with spiral cover at a plurality of crowns of bottleneck 100, because this crown is to be fitted in the surface that contacts with each other with this bottleneck 100 just, and pressure, variation of ambient temperature that the coupling mechanism force on this applying bottleneck 100 surfaces can't be subjected in response to airtight container or the influence when acutely rocking, be subjected to the influence of above-mentioned factor, this lid 20 can't tighten bottleneck 100, causes liquid in the container rotten or spill.

Though the lid of above-mentioned bottle cap can reach cooresponding sealing effectiveness in design, when using, reality can't cause lid to fit tightly in response to pressure, variation of ambient temperature or the influence of acutely rocking with bottleneck.The shortcoming that therefore above-mentioned lid exists is demanded urgently improving.

The utility model content

For overcoming the shortcoming of above-mentioned prior art, main purpose of the present utility model is to provide a kind of and fits tightly with bottleneck, leak free bottle cap fully.

For achieving the above object, bottle cap of the present utility model be spiral cover on container finish, mainly comprise: a lid has the ring portion of a cap and and this cap articulating; One cutoff collar, the extension that faces down in this cap certainly is being to be compacted to this bottleneck inner edge on the bottleneck of this lid spiral cover at this container the time; One urgent ring is located between the ring portion of this cutoff collar and this lid, and the extension that faces down in this cap certainly is to be compacted to this bottleneck outer rim in time on the bottleneck of this lid spiral cover at this container; And at least one presses down the leakproof circle, is located between this cutoff collar and this urgent ring, and it is outstanding to face down in this cap certainly, to oppress this bottleneck top in time on the bottleneck of this lid spiral cover at this container.

This lid also is equipped with a safety link separably, and this safety link possesses a plurality of card uppermost leaf sheets, with spiral cover season this lid safety link only can block bottleneck really at this bottleneck, the user thus can this lid of identification opened mistake whether.

This cutoff collar is provided with the antiseepage gear ring towards the surface of this bottleneck inner edge, and this urgent ring is to extend downwards from this cap, and be tapered, and can hard to bear spiral cover power and to produce side direction moving partially, this presses down the leakproof circle and then is the bulge loop structure of semicircle section, so that this position that presses down apical grafting between leakproof circle and this bottleneck top forms the contact relation of face and face and the lift-off seal effect.

Therefore, because prior art only provides sealing load by spiral cover power, but the lid of the present utility model not only urgent pressure of using integral spiral cover power and bottleneck outer rim comes the airtight container bottleneck, more can and then provide lid of the present utility model and the urgent pressure of bottleneck inner edge and end face, sealing bottleneck outer rim, bottleneck inner edge and bottleneck end face by the urgent pressure of bottleneck outer rim.So the urgent pressure that the sealing strength that lid of the present utility model can provide by spiral cover power and its structure itself are produced comes the airtight container bottleneck, reaches three leak proof seal effects.

Description of drawings

Fig. 1 is the structure cutaway view of the utility model embodiment;

Fig. 2 illustrate the utility model embodiment when locking closure, this lid be not out of shape before the schematic sectional view of state;

Fig. 3 illustrates the utility model embodiment structure cutaway view after this lid distortion when locking closure;

Fig. 4 is existing bottle cap cutaway view; And

Fig. 5 is another existing bottle cap cutaway view.

The specific embodiment

Embodiment

Fig. 1 to Fig. 3 is the accompanying drawing of drawing according to embodiment of the present utility model.As shown in the figure, bottle cap of the present utility model be spiral cover on the bottleneck of vessel 100, this bottle cap mainly comprises lid 1, have a cap 11 and with the ring portion 13 of these cap 11 articulatings; Cap 11 from this lid 1 extends downwards, and this lid 1 spiral cover can be compacted to the cutoff collar 3 of these bottleneck 100 inner edges on the bottleneck of this container 100 time; Be located between this cutoff collar 3 and this lid 1 ring portion 13, the extension that faces down in this cap 11 certainly, when the bottleneck of this lid 1 spiral cover at this container 100 can be compacted to the urgent ring 5 of these bottleneck 100 outer rims; And be located between this cutoff collar 3 and the urgent ring 5, this cap 11 is outstanding downwards with when the bottleneck of this lid 1 spiral cover at this container 100 certainly, that oppresses these bottleneck 100 tops presses down leakproof circle 7.

Embodiment of the present utility model is to be example with the plastic container that are equipped with through the beverage products of high temperature sterilization, because existing container is applicable object, all the other structures do not change, therefore for simplicity, simultaneously for making feature of the present utility model and structure more clear understandable, only show in the accompanying drawings in the container and the direct relevant structure of the utility model that all the other are partly omitted.

As shown in Figure 1, this lid 1 also connects separably establishes a safety link 9, and this safety link 9 possesses a plurality of card uppermost leaf sheets 91, at the safety link 9 of spiral cover this lid 1 in season, only can block bottleneck really at this bottleneck 100, the user thus can identification this lid 1 opened mistake whether.

This cutoff collar 3 is provided with antiseepage gear ring 31 towards the surface of these bottleneck 100 inner edges, as shown in Figure 1, be to be provided with two circle antiseepage gear rings 31 in the present embodiment in ring portion 13 (i.e. these bottleneck 100 inboard places) near this lid 1, this lid 1 is when spiral cover is lived this bottleneck 100, this cutoff collar 3 is by the inner edge of these leakproof gear ring 31 compressings at this bottleneck 100, sealing face locking bottleneck 100 inner edges play sealing function.

Though present embodiment is an example with the antiseepage gear ring 31 that forms sharp tooth, but this antiseepage gear ring 31 is other shape also, be not limited to the sharp tooth shown in the present embodiment, for example this antiseepage gear ring 31 can the side's of being dentation, crenation or other have the structure of identical effect.Simultaneously, this leakproof gear ring 31 is that the gear ring that is arranged on these cutoff collar 3 bottoms with two circles is that example describes in the present embodiment, but the number of turns of this leakproof gear ring 31 is not limited to two circles, nor exceed to be arranged on these cutoff collar 3 bottoms, other quantity can be arranged and locational variation or modification are set.

This urgent ring 5 is a kind of cap 11 downward tapered extended structures from this lid 1, as shown in the figure, this urgent ring 5 is to dwindle gradually near under the side direction of cutoff collar 3, when this lid 1 of spiral cover on this bottleneck 100, this urgent ring 5 is subjected to spiral cover power and side direction is moving partially, and limit this urgent ring 5 with this and be subjected to the spiral cover masterpiece time spent, only can be moving towards ring portion 13 1 lateral deviations of lid 1, the sealing surface of these bottleneck 100 outer rims of locking is provided whereby.

Though a side of this urgent ring 5 dwindles downwards gradually in the present embodiment, the utility model is not as limit, and this urgent ring 5 also can be other equivalent structure, produces the moving partially structure of side direction as long as can make this urgent ring 5 be subjected to spiral cover power and all can.

This presses down leakproof circle 7 is the bulge loop structures from the cap 11 downward semicircle sections of giving prominence to of lid 1, at this lid 1 spiral cover and when locking this bottleneck 100, this presses down the top that leakproof circle 7 is urged to this bottleneck 100, make this press down the contact relation that the position that contacts between leakproof circle 7 and these bottleneck 100 tops forms face and face whereby, thus the lift-off seal effect.

Though the leakproof circle 7 that presses down in the present embodiment is that bulge loop structure with semicircle section is that example describes, but this presses down leakproof circle 7 is not as limit, this presses down leakproof circle 7 also can be other equivalent structure person, be subjected to spiral cover power can lock this bottleneck 100 tops as long as can make this press down leakproof circle 7, make this press down the contact relation that the position that contacts between leakproof circle 7 and these bottleneck 100 tops forms face and face and get final product, its quantity also can be more than one.

Use bottle cap of the present utility model, lid 1 can use with the material of container different heat expansion coefficient and make, the i.e. thermal expansion coefficient of this lid big than this container, the degrees of expansion of this lid 1 is big than this bottleneck 100 when expanded by heating, and the shrinkage degree of this lid 1 is also big than this bottleneck 100 when cooling or low temperature.

State before this lid 1 was not out of shape when Fig. 2 was the explanation locking closure, Fig. 3 then illustrates the state after this lid 1 distortion behind the locking closure, wherein, for the locking closure that specifies this lid 1 changes, in Fig. 2 and Fig. 3, the part of this safety link 9 is omitted, only shown the leakage-proof structure directly relevant partly with the utility model.As shown in the figure, this cutoff collar 3 is with the inner edge generation closed contact of its leakproof gear ring 31 with this bottleneck 100, it is moving partially that this urgent ring 5 can produce side direction in these bottleneck 100 back distortion of contact, and this presses down 7 tops that prop up this bottleneck 100 of leakproof circle, plays the envelope sealing function.

Shown in the broken circle that amplifies this lid 1 upper left corner among Fig. 3, when this lid 1 spiral cover, when being locked at this bottleneck 100, this cutoff collar 3 is subjected to the coupling mechanism force of this lid 1 of turn, moves towards the direction away from this lid 1 ring portion, is pressed in the inner edge of this bottleneck 100 with its leakproof gear ring 31 locks; Be subjected to the compressing of this lid 1 coupling mechanism force of turn this moment, this presses down the top that leakproof circle 7 also contacts this bottleneck 100, this 5 on urgent ring is subjected to this coupling mechanism force moving partially towards side direction, at this lid 1 spiral cover behind this bottleneck 100, this urgent ring 5 is forced into this bottleneck 100, these bottleneck 100 outer rims are sealed, and when this urgent ring 5 is urged to these bottleneck 100 outer rims, be subjected to the strength of these urgent ring 5 these bottlenecks 100 of compressing, this cutoff collar 3 is more closely locked the inner edge of pushing down this bottleneck 100, and this presses down leakproof circle 7 can guarantee closely to press top at this bottleneck 100.

When spiral cover was locked this lid 1, this cutoff collar 3, this urgent ring 5 and this pressed down leakproof circle 7 and contact with these bottleneck 100 formation faces, and this face contact can not produce the gap therein.When even this bottleneck of Yin Gaowen 100 all is heated after expansion with this lid 1, because the degrees of expansion of this lid 1 is bigger than this bottleneck 100, so this cutoff collar 3, this urgent ring 5 and this press down leakproof circle 7 and still can seal tightly this bottleneck 100; When drop in temperature or refrigeration made bottleneck 100 shrink with this lid 1, the shrinkage degree of this lid 1 also shrinkage degree than this bottleneck 100 was big, this moment this cutoff collar 3, this urgent ring 5 and this press down leakproof circle 7 and also can seal tightly this bottleneck 100.

This shows, except rotating this lid 1, make its coupling mechanism force with cutoff collar 3 lock of this lid 1 be pressed in this bottleneck 100 inner edge, will urgent ring 5 lock to be pressed in the outer rim of this bottleneck 100 and this is pressed down leakproof circle 7 and be urged to outside the top of this bottleneck 100, also can make the screen resilience of these urgent ring 5 side direction, make these urgent ring 5 roof pressures to these bottleneck 100 outer rims, and the pressure that produces is passed to this cutoff collar 3 and this presses down on the leakproof circle 7, make this cutoff collar 3 and this press down inner edge and end face that leakproof circle 7 is pressed to this bottleneck 100 respectively.Configuration whereby, even be under pressure, variation of ambient temperature or acutely rock, bottle cap of the present utility model still can keep good sealed against leakage effect.

Therefore, bottle cap of the present utility model, not only can be applicable to use the airtight container bottleneck of whole spiral cover power, it is urgent simultaneously and seal this container finish also can to produce urgent pressure in this bottleneck outer rim, and can and then provide the urgent pressure of this bottleneck inner edge of tight lock and end face by the urgent pressure of bottleneck outer rim.The thin sealing strength that prior art only can be provided by spiral cover power, and lid of the present utility model can both use spiral cover power, sealing load is provided, and produce stronger urgent pressure with its structure itself and come urgent airtight container bottleneck, reach three leak proof seal effects such as bottleneck outer rim, inner edge and end face.

In sum, the utility model provide a kind of can with the urgent applying of bottleneck, reach the bottle cap of sealing leak-stopping, can produce powerful urgent pressure at bottleneck, make the urgent applying of lid of the present utility model and bottleneck and reach sealing leakage-proof effect between face and face.

Claims (10)

1. bottle cap, but spiral cover is characterized in that on the bottleneck of container this bottle cap comprises:

One lid has the ring portion of a cap and and this cap articulating;

One cutoff collar, the extension that faces down in this cap certainly with on the bottleneck of this lid spiral cover at this container the time, is to be compacted to this bottleneck inner edge;

One urgent ring is located between the ring portion of this cutoff collar and this lid, and the extension that faces down in this cap certainly is to press to this bottleneck outer rim in time on the bottleneck of this lid spiral cover at this container;

At least one presses down the leakproof circle, is located between this cutoff collar and this urgent ring, and it is outstanding to face down in this cap certainly, to oppress this bottleneck top in time on the bottleneck of this lid spiral cover at this container.

2. bottle cap as claimed in claim 1 is characterized in that, this lid also is equipped with a safety link separably.

3. bottle cap as claimed in claim 2 is characterized in that, this safety link possesses a plurality of card uppermost leaf sheets, and the safety link of this lid only can block bottleneck at this bottleneck really in spiral cover season.

4. bottle cap as claimed in claim 1 is characterized in that, this cutoff collar is provided with the antiseepage gear ring towards the surface of this bottleneck inner edge.

5. bottle cap as claimed in claim 1 is characterized in that, this urgent ring is to extend downwards and be tapered from this cap, and it is subjected to spiral cover power and to produce side direction moving partially.

6. bottle cap as claimed in claim 1 is characterized in that, this presses down the bulge loop structure that the leakproof circle is semicircle section, so that this position that presses down apical grafting between leakproof circle and this bottleneck top forms the contact relation of face and face.

7. bottle cap as claimed in claim 1 is characterized in that, this lid and this container are to be made by the material of different heat expansion coefficient.

8. bottle cap as claimed in claim 7 is characterized in that, the thermal expansion coefficient of this lid is bigger than the thermal expansion coefficient of this container.

9. bottle cap as claimed in claim 1 is characterized in that, the degrees of expansion during this lid expanded by heating is bigger than this bottleneck.

10. bottle cap as claimed in claim 1 is characterized in that, the shrinkage degree of this lid when cooling and low temperature is big than this bottleneck.

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