CN112849724A - One-way sealed double-layer bottle - Google Patents

Abstract

The invention provides a one-way sealed double-layer bottle, which comprises a one-way sealed double-layer bottle body and a stop cover hermetically connected with a bottle mouth of the one-way sealed double-layer bottle body; the one-way sealed double-layer bottle body comprises a soft inner bottle body and an outer bottle body which can be extruded and can restore to the original shape after the extrusion is removed, a gap cavity is formed between the inner bottle body and the outer bottle body, and a first recess is formed in the position, close to the thread, of the inner bottle body and used for allowing outside air to enter the inner bottle body; the baffle cover comprises a top surface covering the bottle mouth of the inner bottle body and a side wall wrapping the bottle mouth, a one-way discharge hole is formed in the top surface, the side wall covers a gap opening of the gap cavity, and a second recess is formed in the side wall; the rubber ring seals the gap opening when the outer bottle body is extruded, and allows air to enter the gap cavity in a one-way mode after the outer bottle body is extruded, so that the technical problem that the structure of the one-way sealed double-layer bottle is complex due to the fact that the inner content of the containing tank and the residual small amount of content in the containing tank are easily extruded out in a protected mode is solved.

Description

One-way sealed double-layer bottle

Technical Field

The invention relates to the technical field of accommodating bottle bodies, in particular to a one-way sealed double-layer bottle which can effectively prevent the content of the double-layer bottle from deteriorating due to the pollution of external oxygen.

Background

The existing containing tank is used by almost every family, such as a soy sauce containing tank, a fuel consumption containing tank or other liquid containing tanks used in a kitchen, but after the containing tank is opened, air enters the inside of the containing tank to cause the breeding of microorganisms, the quality guarantee period of the contents in the tank is shortened, and the influence on non-disposable consumed liquid articles is large.

To improve this problem, some prior sauce-containing bottles also have a one-way outlet and use a squeezing means to squeeze out the objects inside the can body, for example, application No. 107132318 discloses a one-way sealed double-layer bottle blank and a one-way sealed double-layer bottle made of the same, which mainly comprises: an inner embryo and an outer embryo; the inner embryo comprises: the screw thread opening part, an inner blank ring, an inner blank shoulder and an inner blank body; wherein the outer embryo comprises: an outer embryo ring, an outer embryo shoulder, an outer embryo body; the upper surface of the outer embryo ring extends to the inner wall surface of the shoulder of the outer embryo, a plurality of ventilation grooves are arranged on the upper surface of the outer embryo ring, each ventilation groove forms an opening on the periphery of the outer embryo ring, the outer embryo is sleeved outside the inner embryo, and a ventilation space communicated with all the ventilation grooves is formed between the inner embryo and the outer embryo; the one-way sealed double-layer bottle made of the double-layer blank is internally provided with an inner-layer bottle and an outer-layer bottle, an air pressure space and a plurality of air passages are arranged between the inner-layer bottle and the outer-layer bottle, a plurality of air vents communicated with the air passages are arranged at the convex ring of the one-way sealed double-layer bottle, and the invention also comprises a non-return bottle cap with a non-return function for preventing air from entering the inner-layer bottle; the atmospheric pressure that ensures the air-permeable space during extrusion outer bottle is used on the inlayer bottle each time for the inlayer bottle is extruded to the limit gradually, with the abundant release of content, and the air is difficult for getting into the inlayer bottle inside from the bottle lid simultaneously, thereby protects the difficult quilt of content and is polluted rotten. However, the structure of the invention is complex and the production cost is high.

Therefore, it is necessary to design a container or a bottle having a simple structure, which can protect the contents in the container and easily squeeze out a small amount of the remaining contents in the container.

Disclosure of Invention

The invention aims to provide a one-way sealed double-layer bottle, which solves the technical problem that the one-way sealed double-layer bottle is complex in structure because the contents in a containing tank are protected and a small amount of the remaining contents in the containing tank are easily extruded in the prior art.

In order to achieve the aim, the invention provides a one-way sealed double-layer bottle, which comprises a one-way sealed double-layer bottle body and a stop cover hermetically connected with a bottle mouth of the one-way sealed double-layer bottle body; the one-way sealed double-layer bottle body comprises a soft inner bottle body and an outer bottle body which can be extruded and can restore to the original shape after the extrusion is removed, a gap cavity is formed between the inner bottle body and the outer bottle body, a gap opening is formed in one side of the inner bottle body and one side of the outer bottle body by the gap cavity, and a plurality of first recesses are formed in one side of the inner bottle body, which is close to the gap opening, and are used for allowing external air to enter the outer bottle body; the baffle cover comprises a top surface covering the bottle mouth of the inner bottle body and a side wall wrapping the bottle mouth, a one-way discharge hole communicated with the inner bottle body is formed in the top surface, the side wall covers a gap opening of the gap cavity, and a plurality of second recesses are formed in the inner side of the side wall so that outside air can enter the gap cavity; the inner bottle body and the outer bottle body are wrapped with a rubber ring on the side wall close to the gap opening, the rubber ring seals the gap opening when the outer bottle body is extruded, and air is allowed to enter the gap cavity in a one-way mode after the outer bottle body is extruded.

Preferably, the rubber ring and the inner bottle body are in a soft sealing structure, a first limiting convex edge is arranged on the inner bottle body, when the outer bottle body is extruded, the rubber ring and the inner bottle body are abutted to move towards the direction away from the first recess, the rubber ring and the inner bottle body are abutted to seal the first recess and the gap cavity, the rubber ring and the inner bottle body are abutted to seal the gap opening, and after the pressure of the outer bottle body is relieved, air is allowed to enter the gap cavity in a one-way mode through the opening.

Preferably, a second limiting convex edge is protruded on the side wall of the outer bottle body close to the gap opening, and the rubber ring is hooped in a recess formed by the first limiting edge and the second limiting convex edge so as to limit the rubber ring.

Preferably, the blocking cover further comprises a buckle cover for performing secondary protection on the discharge hole.

Preferably, the side wall of the blocking cover, the inner bottle body and the outer bottle body can be detachably connected.

Preferably, the position of the blocking cover close to the discharge port comprises a flow guide part for guiding the material extruded from the discharge port.

Preferably, the cover is provided with a blocking piece for preventing impurities from entering the flow guide piece.

Preferably, the inner diameter of the inner bottle body close to the discharge hole is larger than the inner diameter of the gap cavity formed by the inner bottle body and the outer bottle body.

Preferably, the blocking cover is in threaded connection with the inner bottle body.

The invention has the beneficial effects that: when the contents in the one-way sealed double-layer bottle body need to be used, the outer bottle body is forcibly extruded, so that the air pressure in the gap cavity is increased, the air flows towards the opening, the rubber ring seals the gap opening, the bottle body is continuously extruded at the moment, the pressure in the gap cavity is greater than the pressure in the inner bottle body, the inner bottle body is extruded, the contents are extruded from the discharge port, and when the inner bottle body is extruded, all parts of the inner bottle body are extruded by the air, and when the residual contents are less, the residual contents can also be extruded; the one-way discharge port enables the content to be extruded and then the external air is not easy to enter the inner bottle body, namely when the content is extruded, after the extrusion force for extruding the outer bottle body is released, the outer bottle body is recovered, the gap cavity is in negative pressure, the air outside the outer bottle body rapidly enters the gap cavity, so that the air pressure in the gap cavity outside the inner bottle body is the same as the external air pressure, and the inner bottle body is rapidly and uniformly extruded, therefore, the inner bottle body cannot form a negative pressure cavity, the external air cannot reversely flow into the inner bottle body, and the effect of preventing the air from entering the inner bottle body is achieved; through utilizing gap cavity and the sealed open-ended setting of rubber circle between inner bottle body and the outer bottle body, simple structure, simple realization prevent that the air from getting into inner bottle body and remaining a small amount of content can be extruded easily's effect, solved realize that the protection holds the inside content of jar, holds a small amount of content of jar remaining and is extruded easily and lead to the complicated technical problem of one-way sealed double-deck bottle structure.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of a double-layered bottle according to the present invention;

FIG. 2 is a schematic diagram illustrating an overall structure of a first recess according to the present invention;

FIG. 3 is a schematic cross-sectional view illustrating a first recess according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic view illustrating an overall structure of the shield cover according to the present invention.

Wherein the reference numerals are:

1. an outer bottle body; 11. a second limiting convex edge; 2. an inner bottle body; 21. a first limit convex edge; 22. a first recess; 3. a one-way discharge hole; 4. a blocking cover; 41. a second recess; 42. covering; 43. a blocking member; 44. a flow guide member; 5. a rubber ring; 6. recessing; 7. a slot cavity.

Detailed Description

The embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the present invention provides an embodiment of a single-direction sealed double-layered bottle, specifically referring to fig. 1 to 5.

A one-way sealed double-layer bottle comprises a one-way sealed double-layer bottle body and a blocking cover 4 which is hermetically connected with a bottle mouth of the one-way sealed double-layer bottle body; the one-way sealed double-layer bottle body comprises a soft inner bottle body 2 and an outer bottle body 1 which can be extruded and can be restored to the original shape after the extrusion is released, a gap cavity 7 is formed between the inner bottle body 2 and the outer bottle body 1, a gap opening is formed at one side of the inner bottle body 2 and one side of the outer bottle body 1 by the gap cavity 7, and a plurality of first recesses 22 are formed at one side of the inner bottle body 2 close to the gap opening and used for allowing external air to enter the inner bottle body 2; the blocking cover 4 comprises a top surface covering the bottleneck of the inner bottle body 2 and a side wall wrapping the bottleneck, the top surface is provided with a one-way discharge hole 3 communicated with the inner bottle body 2, the side wall covers the gap opening of the gap cavity 7, and the inner side of the side wall is provided with a plurality of second recesses 41 for allowing outside air to enter the gap cavity 7; the inner bottle body 2 and the outer bottle body 1 are close to the side wall of the gap opening, a rubber ring 5 wraps the side wall of the gap opening, the rubber ring 5 seals the gap opening when the outer bottle body 1 is extruded, and air is allowed to enter the gap cavity 7 in a one-way mode after the outer bottle body 1 is not extruded.

In this embodiment, the double-layered bottle is a synthetic resin multilayer bottle.

Specifically, the rubber ring 5 with the position of the inner bottle body 2 butt is soft seal structure, be provided with first spacing protruding edge 21 on the inner bottle body 2, when the extrusion outer bottle body 1, the rubber ring 5 with the position of the inner bottle body 2 butt is to keeping away from the direction motion of first sunken 22, and with protruding edge butt in order to seal first sunken 22 with gap cavity 7, and with the inner bottle body 2 butt in order to seal the gap opening, relieve the extrusion after the pressure of outer bottle body 1, seal structure with the inner bottle body 2, the opening allows the one-way entering of air gap cavity 7.

It should be noted that, when the rubber ring 5 seals the gap opening, the rubber ring 5 abuts against the first limit ledge 21 under the extrusion of the outside air and the action of the soft sealing structure of itself, so as to seal the gap opening; when the hand of the outer bottle body 1 of the extrusion of unclamping, the soft seal structure of rubber circle 5 does not receive the pressure extrusion in the inner bottle body 2, thereby no longer with first spacing protruding along 21 butt, the gap opening is no longer in encapsulated situation, outside air gets into in the gap cavity 7 rapidly, so that the atmospheric pressure of gap cavity 7 reaches and atmospheric pressure is balanced, the atmospheric pressure of inner bottle body 2 also reaches the balance, outside air can not inhaled inner bottle body 2, thereby reached the effect that prevents the receiver of outer air pollution inner bottle body 2.

It is further understood that the pressing process of the outer body 1 may be: when the outer bottle body 1 is extruded, air in the gap cavity 7 moves towards the gap opening under the extrusion and extrudes the soft sealing structure of the rubber ring 5, and the soft sealing structure is abutted against the first limiting convex edge 21 after being extruded, so that the gap opening is sealed; when unclamping the hand after, outer bottle 1 reconversion, lead to the inside negative pressure of gap cavity 7, outside air can follow and gets into gap cavity 7 in a plurality of first sunken 22, namely, the soft seal structure of rubber circle 5 resumes original state, no longer seal the gap opening of gap cavity 7, outside air gets into gap cavity 7 rapidly, cause gap cavity 7 and outside pressure size equal, extrude interior bottle 2 evenly, consequently interior bottle 2 can not form the negative pressure cavity, consequently outside air can not flow backward in interior bottle 2, reached the effect that prevents in the air admission interior bottle 2, the protection content is difficult rotten, thereby the shelf life of extension content.

Specifically, a second limiting convex edge 11 protrudes from the side wall of the outer bottle body 1 close to the gap opening, and the rubber ring 5 is hooped in a recess 6 formed by the first limiting edge and the second limiting convex edge 11 to limit the rubber ring 5.

Specifically, the blocking cover 4 further includes a buckle cover 42 for performing secondary protection on the discharge hole. .

In this embodiment, the fastening cover 42 is rotatably connected to the sidewall of the blocking cover 4 for opening or covering the fastening cover 42, so as to prevent the fastening cover 42 from being detached to be lost or falling to the ground to be polluted.

Specifically, the side wall of the blocking cover 4, the inner bottle body 2 and the outer bottle body 1 can be detachably connected with each other.

The one-way discharge port 3 of the bottle body 2 is arranged in the side wall sleeve of the blocking cover 4 and is in threaded connection with the bottle wall of the inner bottle body 2 close to the one-way discharge port 3; the outer bottle body 1 is sleeved outside the inner bottle body 2, the threaded connection part of the inner bottle body 2 and the blocking cover 4 extends out of the outside from the inner part of the outer bottle body 1, and the outer bottle body 1 and the inner bottle body 2 are hooped tightly through the rubber ring 5.

Specifically, the position of the blocking cover 4 close to the discharge hole includes a flow guide element 44 for guiding the material extruded from the discharge hole, and the flow guide element 44 in this embodiment is in a hollow circular truncated cone shape with an opening at one end.

Specifically, the fastening cover 42 is provided with a blocking member 43 for preventing impurities from entering the flow guide member 44, the blocking member 43 is in a shape of a long bar, one end of the blocking member 43 is connected with the fastening cover 42, the second end extends perpendicular to the blocking cover 4, and when the opening cover is fastened down, the blocking member 43 is inserted from the opening of the flow guide member 44 and blocks the one-way discharge hole 3.

Specifically, the inner diameter of the inner bottle body 2 close to the discharge port is larger than the inner diameter of the gap cavity 7 formed by the inner bottle body 2 and the outer bottle body 1, so that the pressure of the inner bottle body 2 close to the discharge port is increased during extrusion, the accommodated substance is extruded more easily, and labor is saved.

Specifically, the blocking cover 4 is in threaded connection with the inner bottle body 2, so that the inner bottle body 2 and the blocking cover 4 can be detachably connected, when one of the blocking cover and the inner bottle body is damaged, the blocking cover and the inner bottle body can be assembled again without being damaged, and the utilization rate can be improved.

In the embodiment, when the contents in the one-way sealed double-layer bottle body need to be used, the outer bottle body 1 is forcibly pressed, so that the air pressure in the gap cavity 7 is increased, the air flows towards the opening, the rubber ring 5 seals the gap opening, the bottle body is continuously pressed at the moment, the pressure in the gap cavity 7 is greater than the pressure in the inner bottle body 2, the inner bottle body 2 is pressed, the contents are extruded from the discharge port, and because the inner bottle body 2 is pressed, all parts of the inner bottle body 2 are pressed by the air, and the remaining contents can be extruded when the remaining contents are small; the one-way discharge port 3 ensures that the external air is not easy to enter the inner bottle body 2 after the content is extruded, namely when the content is extruded, the outer bottle body 1 is recovered after the extrusion force for extruding the outer bottle body 1 is released, the gap cavity 7 is in negative pressure, the air outside the outer bottle body 1 rapidly enters the gap cavity 7, so that the air pressure in the gap cavity 7 outside the inner bottle body 2 is the same as the external air pressure, and the inner bottle body 2 is rapidly and uniformly extruded, therefore, the inner bottle body 2 cannot form a negative pressure cavity, the external air cannot flow back into the inner bottle body 2, and the effect of preventing the air from entering the inner bottle body 2 is achieved; through utilizing the sealed open-ended setting of gap cavity 7 and rubber circle 5 between inner bottle body 2 and the outer bottle body 1, simple structure, simple realization prevent that the air from getting into inner bottle body 2 and the effect that a small amount of content of surplus can be extruded easily, solved realize that the protection holds the inside content of jar, holds a small amount of content of surplus in the jar and is extruded easily and lead to the complicated technical problem of one-way sealed double-deck bottle structure.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.

Claims (9)

1. A one-way sealed double-layer bottle is characterized by comprising a one-way sealed double-layer bottle body and a stop cover hermetically connected with a bottle mouth of the one-way sealed double-layer bottle body;

the one-way sealed double-layer bottle body comprises a soft inner bottle body and an outer bottle body which can be extruded and can restore to the original shape after the extrusion is removed, a gap cavity is formed between the inner bottle body and the outer bottle body, a gap opening is formed in one side of the inner bottle body and one side of the outer bottle body by the gap cavity, and a plurality of first recesses are formed in one side of the inner bottle body, which is close to the gap opening, and are used for allowing external air to enter the outer bottle body;

the baffle cover comprises a top surface covering the bottle mouth of the inner bottle body and a side wall wrapping the bottle mouth, a one-way discharge hole communicated with the inner bottle body is formed in the top surface, the side wall covers a gap opening of the gap cavity, and a plurality of second recesses are formed in the inner side of the side wall so that outside air can enter the gap cavity;

the inner bottle body and the outer bottle body are wrapped with a rubber ring on the side wall close to the gap opening, the rubber ring seals the gap opening when the outer bottle body is extruded, and air is allowed to enter the gap cavity in a one-way mode after the outer bottle body is extruded.

2. The one-way sealed double-layered bottle according to claim 1, wherein the portion of the rubber ring abutted against the inner bottle body is a soft sealing structure, the inner bottle body is provided with a first limiting convex edge, when the outer bottle body is squeezed, the portion of the rubber ring abutted against the inner bottle body moves in a direction away from the first recess, and is abutted against the convex edge to seal the first recess and the gap cavity, and is abutted against the inner bottle body to seal the gap opening, and the opening allows air to enter the gap cavity in one way after the pressure of the outer bottle body is relieved.

3. The one-way sealed double-layered bottle as claimed in claim 2, wherein a second limiting convex edge is protruded on the side wall of the outer bottle body close to the slit opening, and the rubber ring is hooped in a recess formed by the first limiting edge and the second limiting convex edge to limit the rubber ring.

4. A one-way sealed double-layered bottle according to claim 1 or 2, wherein the stopper further comprises a cap for secondary protection of the discharge port.

5. The one-way sealed double-layered bottle according to any one of claims 1 to 3, wherein the sidewall of the cap, the inner body and the outer body are detachably connected to each other.

6. The one-way sealed double-layered bottle according to claim 1, wherein the position of the blocking cover close to the discharge port comprises a flow guide member for guiding the flow of the material extruded from the discharge port.

7. A one-way sealed double-layered bottle according to claim 4, wherein the cap is provided with a blocking member for preventing impurities from entering the flow guide member.

8. The one-way sealed double-layered bottle according to claim 1, wherein the inner diameter of the inner body near the discharge port is larger than the inner diameter of the portion of the inner body where the gap cavity is formed with the outer body.

9. A one-way sealed double layered bottle according to claim 1, wherein the stopper cap is screw-coupled to the inner bottle body.

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