CN112027300A - Double-layer bottle - Google Patents

Abstract

The invention provides a double-layer bottle which comprises a double-layer bottle body and a blocking cover hermetically connected with a bottle mouth of the double-layer bottle body; the 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 an opening is formed in one side of the bottle mouth by the gap cavity; the baffle cover comprises a top surface covering the bottle opening and a side wall wrapping the bottle opening, a one-way discharge hole communicated with the inner bottle body is formed in the top surface, the side wall covers the opening of the gap cavity, a one-way sealing element is arranged on the inner side of the side wall, the one-way sealing element seals the opening when the outer bottle body is extruded, air is allowed to enter the gap cavity in a one-way mode after the outer bottle body is removed from the extrusion, and the technical problem that the structure of a double-layer bottle is complex due to the fact that the inner content of the containing tank is protected, and the remaining small amount of content in the containing tank is easily extruded out is solved.

Description

a double bottle

technical field

The invention relates to the technical field of accommodating bottle bodies, in particular to a double-layer bottle.

Background technique

The existing holding tanks are used in almost every household, such as the soy sauce holding tanks, oil consumption holding tanks, or other liquid holding tanks used in the kitchen, but after the holding tank is opened, air will enter the holding tank. Inside the tank, it causes the growth of microorganisms and shortens the shelf life of the contents in the tank.

In order to improve this problem, some existing sauce containers are also provided with a one-way outlet, and use the extrusion method to extrude the objects inside the tank for use. The double-layer bottle preform and the double-layer bottle made from it, which mainly include: endomorph and ectoderm; the endomorph includes: threaded mouth, an endomorph ring, an endomorph shoulder and an endomorph body; wherein the ectoderm includes: : an ectodermal ring, an ectodermal shoulder, an ectodermal body; the upper surface of the ectodermal ring extends to the inner wall surface of the ectodermal shoulder and is provided with several ventilation grooves, and each ventilation groove is on the circumference of the ectodermal ring An opening is formed, the ectoderm is covered outside the inner body, and there is a ventilation space communicated with all the ventilation grooves between the inner body and the ectoderm; the double-layer bottle made of the double-layer embryo has an inner-layer bottle and a The outer layer bottle has a pressure space and a plurality of air passages therebetween, and at the convex ring of the double-layer bottle, there is a plurality of air vents that communicate with the air passages. The invention also includes a non-return function to prevent air from entering the inner layer bottle. Anti-return bottle cap; ensure that the air pressure of the ventilation space acts on the inner bottle every time the outer bottle is squeezed, so that the inner bottle is gradually squeezed to the limit, and the contents are fully released, and the air is not easy to escape from the bottle cap. It enters the inner bottle of the inner layer, so as to protect the contents from being polluted and deteriorated. However, the structure of the invention is relatively complicated and the production cost is high.

Therefore, it is very necessary to design a holding tank or a holding bottle with a simple structure, which can protect the contents inside the holding tank and easily squeeze out a small amount of content remaining in the holding tank.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a double-layer bottle, which solves the technical problem in the prior art that the structure of the double-layer bottle is complicated in order to protect the contents of the container and easily squeeze out a small amount of the remaining content in the container.

In order to achieve the above purpose, the present invention provides a double-layered bottle, comprising a double-layered bottle body and a cover sealingly connected to a bottle mouth of the double-layered bottle body; the double-layered bottle body includes a soft inner bottle body and an outer bottle body that can be squeezed and can be restored to its original shape after being released from the squeeze, a gap cavity is formed between the inner bottle body and the outer bottle body, and the gap cavity is on the side of the bottle mouth An opening is formed; the blocking cover includes a top surface covering the bottle mouth and a side wall wrapping the bottle mouth, the top surface is provided with a one-way discharge port that communicates with the inner bottle body, so the The side wall covers the opening of the gap cavity, and a one-way seal is arranged on the inner side of the side wall, and the one-way seal seals the opening when the outer bottle body is squeezed. After the body is released from the extrusion, air is allowed to enter the slit cavity in one direction.

Preferably, the one-way sealing member is a soft sealing member, the outer bottle body includes a one-way abutting member, and when the outer bottle body is squeezed, the one-way sealing member is closer to the one-way sealing member. Moves in the direction of the abutting member, and abuts with the one-way abutting member to seal the opening, after releasing the pressure of squeezing the outer bottle body, the one-way sealing member abuts the one-way sealing member The parts are separated, and the opening allows air to enter the slot cavity in one direction.

Preferably, the one-way sealing member extends along the circumference of the bottle wall of the outer bottle body.

Preferably, the blocking cover further includes a snap cover for secondary protection of the discharge port.

Preferably, the inner bottle body and the outer bottle body are provided with a fixing member to prevent the inner bottle body from falling off from the outer bottle body.

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

Preferably, a blocking member for preventing impurities from entering the flow guide member is provided on the buckle cover.

Preferably, the blocking cover and the one-way seal are integrally formed.

Preferably, the blocking cover is detachably connected to the inner bottle body.

Preferably, the blocking cover is threadedly connected to the inner bottle body.

Compared with the prior art, the present invention has the following beneficial effects: when the content in the double-layer bottle body needs to be used, the outer bottle body is squeezed hard, so that the air pressure in the gap cavity becomes larger, and the air flows toward the opening, The one-way seal seals the opening. At this time, the bottle body is continuously squeezed, the pressure in the gap cavity is greater than the pressure in the inner bottle body, the inner bottle body is squeezed, and the contents are squeezed out from the discharge port. When the body is squeezed, all parts of the inner bottle body are squeezed by air, and can also be squeezed out when the remaining content is small; the one-way discharge port makes it difficult for external air to enter the inner bottle after the content is squeezed After releasing the extrusion force of the outer bottle body, the outer bottle body returns to its original state, the gap cavity is under negative pressure, and the air outside the outer bottle quickly enters the gap cavity, so that the inner bottle body The air pressure in the outer gap cavity is the same as the external air pressure, and the inner bottle body is evenly squeezed, so the inner bottle body will not form a negative pressure cavity, so the external air will not flow back into the inner bottle body, which prevents air from entering the inner bottle. Function in the body; by using the gap cavity between the inner bottle body and the outer bottle body and the arrangement of the one-way seal to seal the opening, the structure is simple, and it is simple to prevent air from entering the inner bottle body and the remaining small amount of content can be easily squeezed It solves the technical problem of the complex structure of the double-layer bottle caused by the protection of the contents in the container and the easy extrusion of the remaining small content in the container.

Description of drawings

Fig. 1 is the structural representation of the double-layer bottle of the present invention;

FIG. 2 is an enlarged schematic view of part A in FIG. 1 .

Among them, the reference numerals are:

1. Inner bottle body; 2. Slot cavity; 3. Outer bottle body; 4. Cover; 5. One-way sealing part; 6. One-way abutting part; 7. Guide part; Blocking parts; 10. Buckle cover.

Detailed ways

The embodiments described below are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The embodiment of the present invention provides an embodiment of a double-layer bottle, please refer to FIG. 1 and FIG. 2 for details.

A double-layer bottle, comprising a double-layer bottle body and a blocking cover 4 sealingly connected with a bottle mouth of the double-layer bottle body; the double-layer bottle body includes a soft inner bottle body 1 and an extrudable bottle And the outer bottle body 3, which can be restored to its original state after releasing the extrusion, has a gap cavity 2 formed between the inner bottle body 1 and the outer bottle body 3, and the gap cavity 2 is formed on the side of the bottle mouth. an opening; the blocking cover 4 includes a top surface covering the bottle mouth and a side wall wrapping the bottle mouth, the top surface is provided with a one-way discharge port that communicates with the inner bottle body 1, The side wall covers the opening of the slot cavity 2, and a one-way seal 5 is arranged on the inner side of the side wall, and the one-way seal 5 seals the opening when the outer bottle body 3 is squeezed, After the outer bottle body 3 is released from the squeeze, air is allowed to enter the gap cavity 2 in one direction.

Specifically, the one-way sealing member 5 is a soft sealing member, and the outer bottle body 3 includes a one-way abutting member 6. When the outer bottle body 3 is squeezed, the one-way sealing member 5 Move to the direction close to the one-way abutting member 6, and abut with the one-way abutting member 6 to seal the opening, after releasing the pressure of pressing the outer bottle body 3, the one-way sealing The piece 5 is separated from the one-way abutment piece 6, and the opening allows air to enter the slot cavity 2 in one direction.

It should be noted that the one-way sealing member 5 is fixed on the side of the blocking cover 4 close to the abutting member in a barb shape, and the one-way abutting member 6 is an abutting plate and is perpendicular to the outer bottle body 3 side walls.

It can be understood that when the outer bottle body 3 is squeezed, the air in the gap cavity 2 will move to the opening and squeeze the one-way seal 5, and the soft one-way seal 5 will be reversed. After the hook is squeezed, it will abut with the one-way abutment member 6, thereby sealing the opening; when the hand is released, the outer bottle body 3 will return to its original state, resulting in negative pressure inside the gap cavity 2, and external air will enter the gap cavity 2 , so that the one-way seal 5 is squeezed from the outside, the barb of the one-way seal 5 returns to the original barb state, and no longer abuts with the one-way abutment 6, the opening is punched, and the outside air quickly enters the gap. cavity 2, the gap cavity 2 is equal to the external pressure, and the inner bottle body 1 is evenly squeezed, so the inner bottle body 1 will not form a negative pressure cavity, so the external air will not flow back into the inner bottle body 1, The effect of preventing air from entering the inner bottle body 1 is achieved, and the contents are protected from deterioration, thereby prolonging the shelf life of the contents.

Specifically, the one-way sealing member 5 is arranged to extend along the circumference of the bottle wall of the outer bottle body 3 .

It can be understood that, since the one-way abutting member 6 abuts against the one-way sealing member 5 to seal the opening, the one-way abutting member 6 extends along the circumference of the bottle wall of the outer bottle body 3 .

Specifically, the blocking cover 4 further includes a snap cover 10 for secondary protection of the discharge port.

In this embodiment, part of the buckle cover 10 is rotatably connected to the side wall of the blocking cover 4 for opening or closing the buckle cover 10 to prevent the buckle cover 10 from being disassembled and lost or being dropped on the ground to be polluted.

Specifically, the inner bottle body 1 and the outer bottle body 3 are provided with a fixing member 8 to prevent the inner bottle body 1 from falling off from the outer bottle body 3 . The inner bottle body 1 is threadedly connected.

The fixing member 8 can be a fixed point, and the inner bottle body 1 and the outer bottle body 3 are connected by point connection. In this embodiment, the fixing member 8 is fixed at the bottle mouth of the outer bottle body 3, and the fixing member 8 is a fixing plate. It is vertically arranged with the side wall of the bottle mouth of the outer bottle body 3, and part of the fixing member 8 is fixedly connected with the bottom of the threaded strip on the inner bottle body 1. Please refer to FIG. 2 for the structure.

Specifically, a position of the blocking cover 4 close to the discharge port includes a flow guide member for guiding the flow of the material extruded from the discharge port. The flow guide member in this embodiment is in the shape of a hollow truncated cone. .

Specifically, a blocking member 9 is provided on the buckle cover 10 to prevent impurities from entering the flow guide member. The blocking member 9 is in the shape of a long bar, and one end of the blocking member 9 is connected to the buckle cover 10 . The second end extends vertically to the blocking cover 4 .

Specifically, the blocking cover 4 and the one-way seal 5 are integrally formed, and the assembly cost of the rear end can be reduced by simple assembly or no assembly. The existing solution is to make two one-way valves in opposite directions on the blocking cover 4 to guide the contents and the atmosphere into and out of the bottle respectively, but the production of the one-way valve of the bottle cap requires the development of precision molds, and the assembly process in the latter stage. Complexity requires orientation, resulting in extremely high costs. Specifically, the blocking cover 4 is detachably connected to the inner bottle body 1 .

In this embodiment, when the contents of the double-layer bottle need to be used, the outer bottle 3 is squeezed hard, so that the air pressure in the gap cavity 2 increases, the air flows toward the opening, and the one-way seal 5 is sealed. Open, at this time the bottle body is continuously squeezed, the pressure in the gap cavity 2 is greater than the pressure in the inner bottle body 1, the inner bottle body 1 is squeezed, and the contents are squeezed out from the discharge port. When being squeezed, all parts of the inner bottle body 1 are squeezed by air, and can be squeezed out when the remaining content is small; the one-way discharge port makes it difficult for external air to enter the inner bottle after the content is squeezed Body 1, that is, the contents are extruded. After releasing the squeezing force of the outer bottle body 3, the outer bottle body 3 returns to its original state, the gap cavity 2 is under negative pressure, and the air outside the outer bottle body 3 quickly enters the gap cavity. 2, so that the air pressure in the gap cavity 2 outside the inner bottle body 1 is the same as the external air pressure, and the inner bottle body 1 is evenly squeezed, so the inner bottle body 1 will not form a negative pressure cavity, so the outside air will not flow back Entering the inner bottle body 1, the effect of preventing air from entering the inner bottle body 1 is achieved; by using the gap cavity 2 between the inner bottle body 1 and the outer bottle body 3 and the one-way seal 5 to seal the opening, the structure is simple, It simply realizes the function of preventing air from entering the inner bottle body 1 and the remaining small amount of contents can be easily squeezed out. The technical problems of the layer bottle structure are complex.

The above disclosures are only a few preferred embodiments of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims (10)

1. A double-layered bottle, characterized in that, comprising a double-layered bottle body and a stopper sealingly connected with a bottle mouth of the double-layered bottle body; The double-layer bottle body includes a soft inner bottle body and an outer bottle body that can be squeezed and can be restored to its original shape after being released from the squeeze, and a gap cavity is formed between the inner bottle body and the outer bottle body, The slit cavity forms an opening on one side of the bottle mouth; The blocking cover includes a top surface covering the bottle mouth and a side wall wrapping the bottle mouth, the top surface is provided with a one-way discharge port communicating with the inner bottle body, and the side wall covers The opening of the gap cavity, the inner side of the side wall is provided with a one-way seal, the one-way seal seals the opening when the outer bottle body is squeezed, and when the outer bottle body is released from the squeeze The air is then allowed to enter the slot cavity in one direction. 2 . The double-layer bottle according to claim 1 , wherein the one-way sealing member is a soft sealing member, and the outer bottle body includes a one-way abutting member, when the outer bottle is squeezed When the one-way sealing member moves in a direction close to the one-way abutting member, and abuts the one-way abutting member to seal the opening, after releasing the pressure of squeezing the outer bottle body , the one-way sealing member is separated from the one-way abutting member, and the opening allows air to enter the gap cavity in one direction. 3 . The double-layered bottle according to claim 2 , wherein the one-way sealing member extends along the circumference of the bottle wall of the outer bottle body. 4 . 4 . The double-layer bottle according to claim 1 or 2 , wherein the blocking cover further comprises a snap cover for secondary protection of the discharge port. 5 . 5. The double-layered bottle according to any one of claims 1 to 3, wherein the inner bottle body and the outer bottle body are provided with a mechanism to prevent the inner bottle body from falling off the outer bottle body. Fastener. 6 . The double-layered bottle according to claim 5 , wherein a position of the blocking cover close to the discharge port includes a guide member for guiding the flow of the material extruded from the discharge port. 7 . 7 . The double-layer bottle according to claim 4 , wherein a blocking member for preventing impurities from entering the flow guiding member is provided on the buckle cover. 8 . 8 . The double-layer bottle according to claim 1 , wherein the blocking cover and the one-way seal are integrally formed. 9 . 9 . The double-layer bottle according to claim 1 or 8 , wherein the blocking cover is detachably connected to the inner bottle body. 10 . 10 . The double-layer bottle according to claim 9 , wherein the blocking cap is screwed with the inner bottle body. 11 .

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