CN111153013B - Double-layer container combination - Google Patents

Abstract

A double-layer container combination suitable for containing fluids and comprising an outer container defining a container space and an inner container. The inner container includes an inner wall located in the container space and surrounding and defining a container space capable of accommodating the fluid, and an inner extension wall extending upwardly from the inner container wall. The inner extension wall is inseparably connected to the outer container, and defines a communication channel that communicates between the accommodating space and the outside. The inner wall has a fixed wall section that cannot be detachably connected to the outer container, and a deformable wall section that connects the fixed wall section and is mainly composed of a deformable material. The deformable wall section can be deformed and separated from the outer container when the fluid is sucked to change the volume of the accommodating space. The fixed wall section cannot be detachably connected to the outer container, thereby limiting the deformation of the inner container, so as to solve the problem that the fluid cannot be absorbed due to plugging the straw in the inner container in the past.

Description

Double container combination

technical field

The present invention relates to a container for accommodating fluid, in particular to a double-layer container combination with inner and outer containers.

Background technique

Referring to Figures 1 and 2, a double-layer container assembly includes an outer container 11 and an inner container 12 arranged with an outer container and an inner container. The outer container 11 defines a container space 111 , and an air gap 112 is formed at the bottom for allowing air to flow into the container space 111 . The inner container 12 is made of a deformable plastic material, and the top portion is inseparably connected to the outer container 11 , and defines a accommodating space 121 suitable for accommodating a fluid 13 . The double-layer container combination is suitable for use with a straw 14 inserted in the accommodating space 121 .

When the user sucks the fluid 13 out of the container space 121, air can flow into the container space 111 through the air gap 112. At this time, the air pressure acts on the inner container 12, so that the inner container 12 can be deformed and pushed. Squeeze the fluid 13, so that the fluid 13 can be sucked out. However, after a period of use, since the fluid volume of the fluid 13 decreases, the deformation of the inner container 12 will increase accordingly, and will be affected by the air pressure. The state shown in Figure 2 is shown below. In the state shown in FIG. 2 , the inner container 12 will plug the bottom of the straw 14 , and the fluid 13 will not be able to be sucked out at this time, resulting in a hindrance in use, which needs to be improved.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a double-layer container combination that can solve at least one of the problems of the background art.

The double-layer container combination of the present invention is suitable for containing fluid, and includes an outer container defining a container space, and an inner container, the outer container is formed with an air inlet channel located at the bottom and communicated between the container space and the outside world, the inner container comprising an inner wall located in the container space and surrounding a container space defining a container capable of containing the fluid, and an inner extension wall extending upwardly from the inner wall, the inner extension wall being inseparably connected to the outer container, And define a communication channel that communicates between the accommodating space and the outside world and can be used for the fluid to be sucked out. A fixed wall section on the side, and a deformed wall section connected to the fixed wall section and mainly composed of deformable material and located on the other side of the two opposite sides of the front and rear of the intake passage, the deformed wall section can be affected by the fluid. When sucking, it deforms and separates from the outer container to change the volume of the accommodating space.

In the double-layer container assembly of the present invention, the inner wall has an inner bottom wall, and an inner peripheral wall connected between the inner bottom wall and the inner extension wall, the inner bottom wall and the inner peripheral wall The accommodating space is defined by the matching of the inner wall portion, and the inner wall portion has the fixed wall section and the deformed wall section which extend up and down in the axial direction and are connected to each other in the radial direction opposite to each other, and the cross-sections cooperate to form an annular shape.

In the double-layer container assembly of the present invention, the inner bottom wall portion has a first inner wall section and a second inner wall section which extend oppositely from bottom to top and are substantially located on the front and rear opposite sides of the intake passage, respectively. The inner wall section is connected between the fixed wall section and the second inner wall section, and is inseparably connected to the outer container, the second inner wall section is connected between the first inner wall section and the deformed wall section, and can be absorbed by the fluid. When sucking, it deforms and separates from the outer container to change the volume of the accommodating space.

In the double-layer container combination of the present invention, the left and right sides of the bottom end of the second inner wall section cannot be separately connected to the outer container. In the double-layer container combination of the present invention, the fixed wall section is not smaller than the deformed wall section.

In the double-layer container combination of the present invention, the air inlet channel is an air slit.

The beneficial effect of the present invention is that the fixed wall section cannot be detachably connected to the outer container, so that the inner container is restricted in deformation to a certain extent, so as to solve the problem that the bottom of the straw is blocked due to excessive deformation of the inner container in the past.

Description of drawings

Figure 1 is a cross-sectional view of the assembly illustrating an existing double container assembly;

Fig. 2 is a combined cross-sectional view illustrating a use state of the existing double-layer container combination;

Figure 3 is a cross-sectional view of the assembly, taken longitudinally in a left-right direction, illustrating one embodiment of the double-layer container assembly of the present invention; and

Figure 4 is a combined cross-sectional view, taken longitudinally in a front-to-rear direction, illustrating this embodiment;

FIG. 5 is a combined cross-sectional view, similar to FIG. 4, illustrating a use state of this embodiment; and

FIG. 6 is a flow chart of steps illustrating the method of making a double-layered container assembly used in this embodiment to manufacture the double-layered container assembly.

Detailed ways

Referring to FIGS. 3 and 4 , an embodiment of the double-layer container assembly of the present invention includes a double-layer container assembly 2 and a method for manufacturing the double-layer container assembly 2 . The production method of this double-layer container combination will be described later.

The double-layer container assembly 2 is suitable for containing a fluid 3 . The kind of the fluid 3 is not particularly limited. The double-layer container assembly 2 includes an outer container 4 , and an inner container 5 located inside the outer container 4 and having a shape matching the outer container 4 and partially adhering to the outer container 4 .

The outer container 4 is made of a material that is hard and can resist changes in air pressure without being deformed. In this embodiment, it is polypropylene (PP), and includes an outer container that defines a container space 41 (refer to FIG. 5 ). The vessel wall 42, and an outer extending wall 43 extending upward from the outer vessel wall 42 and substantially in the shape of a hollow cylinder. The outer extension wall 43 can be assembled with components such as bottle caps or container caps. Therefore, the outer extension wall 43 can have threads or corresponding bottle caps or container caps in addition to the shapes shown in Figures 3 and 4. other shapes.

The outer wall 42 has a peripheral wall portion 44 whose top end is connected to the outer extending wall 43 , and an outer bottom wall portion 45 extending downward from the peripheral wall portion 44 .

The peripheral wall portion 44 is generally in the shape of a hollow cylinder whose top is gradually reduced in diameter from bottom to top, and has a first peripheral wall section 441 and a second peripheral wall section 442 that are connected to each other radially opposite to each other and extend up and down in the axial direction. . The cross-sections of the first surrounding wall section 441 and the second surrounding wall section 442 are substantially annular.

The outer bottom wall portion 45 has a first outer wall section 451 and a second outer wall section 452 extending oppositely from bottom to top along a front-rear direction D1. The first outer wall section 451 is connected between the first surrounding wall section 441 and the second outer wall section 452, and cooperates with the second outer wall section 452 to define an air intake passage that communicates between the container space 41 and the outside world 453. In this embodiment, the air intake passage 453 is an air slit located at the bottom and extending along a left-right direction D2. The second outer wall section 452 is connected between the second surrounding wall section 442 and the first outer wall section 451 , and the cross section of the outer bottom wall 45 in front and rear longitudinal sections is substantially V or U shape.

The inner container 5 is made of a deformable material, which is polyethylene (PE) in this embodiment, and includes a container space 51 located in the container space 41 and surrounding and defining a container space 51 capable of accommodating the fluid 3 The inner wall 52, and an inner extension wall 53 extending upward from the inner wall 52.

The inner wall 52 has an inner wall portion 54 whose cross section is substantially annular, and an inner bottom wall portion 55 extending downward from the inner wall portion 54 .

The inner wall portion 54 is connected between the inner bottom wall portion 55 and the inner extension wall 53, and is generally in the shape of a hollow cylinder whose top is gradually reduced in diameter from bottom to top. One fixed wall section 541 and one deformable wall section 542 extending up and down. The fixed wall section 541 is located on one of the front and rear opposite sides of the intake passage 453 and cannot be detachably connected to the first surrounding wall section 441 of the outer container 4 . The deformed wall section 542 is located on the other side of the front and rear opposite sides of the intake passage 453 , and can be separated from or abutted with the second surrounding wall section 442 of the outer container 4 .

In this embodiment, the cross-sections of the fixed wall section 541 and the deformed wall section 542 are generally semi-circular, that is to say, the fixed wall section 541 and the deformed wall section 542 have the same size, but in other aspects of the present invention In an embodiment, the fixed wall section 541 only needs to be not smaller than the deformed wall section 542 , that is to say, the fixed wall section 541 can also be larger than the deformed wall section 542 .

The inner bottom wall portion 55 cooperates with the inner surrounding wall portion 54 to define the accommodating space 51 , and has a first inner wall section 551 and a second inner wall section 552 extending from bottom to top opposite to each other. The first inner wall section 551 is substantially located on one of the front and rear opposite sides of the intake passage 453 , is connected between the fixed wall section 541 and the second inner wall section 552 , and is inseparably connected to the outer container 4 . First outer wall segment 451 . The second inner wall section 552 is substantially located on the other side of the front and rear opposite sides of the intake passage 453 , is connected between the first inner wall section 551 and the deformed wall section 542 , and can communicate with the second inner wall section 551 of the outer container 4 . The outer wall segments 452 separate or abut.

The left and right sides of the bottom end of the second inner wall section 552 are inseparably connected to the outer bottom wall 45 of the outer container 4 , and the middle portion can be separated from or abutted with the outer bottom wall 45 .

The inner extending wall 53 is in the shape of a hollow cylinder, and the outer surface is inseparably bonded to the inner surface of the outer extending wall 43 to close the top of the container space 41 and define a space that communicates between the container space 51 and the outside and can be A communication channel 56 for the fluid 3 to be sucked out.

Referring to FIGS. 3 to 5 , the inner container 5 can be changed from the containing state shown in FIGS. 3 and 4 to the use state shown in FIG. 5 when used with a straw 6 relative to the outer container 4 .

In the accommodating state, the fixed wall section 541 and the first inner wall section 551 of the inner container 5 are respectively adhered to the first surrounding wall section 441 and the first outer wall section 451 of the outer container 4, and the inner container The deformed wall section 542 and the second inner wall section 552 of 5 can be detachably abutted against the second surrounding wall section 442 and the second outer wall section 452 of the outer container 4 .

When the user sucks the fluid 3 from the accommodating space 51 through the straw 6 , the pressure in the accommodating space 51 will drop temporarily, and the deformed wall section 542 of the inner container 5 and the second inner wall section will be caused 552 is matched and deformed to balance the pressure, so that the volume of the accommodating space 51 can be changed, and the inner container 5 can be changed to the use state shown in FIG. 5 .

In this state of use, the deformed wall section 542 is separated from the second surrounding wall section 442, and is attached to the suction tube 6 at an interval from the fixed wall section 541. Most of the second inner wall section 552, especially the bottom end The middle part is separated from the second outer wall section 452 , but is still spaced apart from the first inner wall section 551 , and the left and right sides of the bottom end are still fixed to the outer bottom wall 45 . Since the fixed wall section 541 and the first inner wall section 551 cannot be separated from the outer container 4, that is, they are restricted by the outer container 4 and cannot approach the deformed wall section 542 and the second inner wall section 552, respectively. It can prevent the inner container 5 from blocking the bottom opening of the suction tube 6 due to excessive deformation, so that there is no difficulty that the fluid 3 cannot be sucked out through the suction tube 6 . The design of the left and right sides of the bottom end of the second inner wall section 552 being fixed to the outer bottom wall section 45 can ensure that the second inner wall section 552 is not excessively deformed to block the suction pipe 6, and at the same time further ensure that the air inlet channel 453 is connected to the suction pipe 6. The container space 41 is well communicated to ensure that the gas can flow into the container space 41 smoothly, and the inner container 5 can be well deformed.

Referring to Figures 3, 4, and 6, the double-layer container assembly 2 can be produced by a method for producing a double-layer container assembly. The manufacturing method of the double-layer container assembly includes a step S1 of providing a container, and a step S2 of squeezing the container.

In the step S1 of providing the container, the outer container 4 and the inner container 5 are provided with the inner and outer casings glued together. In the step S2 of squeezing the container, the deformed wall section 542 and the second surrounding wall section 442 corresponding to each other inside and outside are squeezed, and the second inner wall section 552 and the second outer wall section 452 corresponding to each other inside and outside are squeezed, So that the deformed wall section 542 and the second inner wall section 552 can be separated from the second surrounding wall section 442 and the second outer wall section 452 respectively without being bonded, so as to obtain the double-layer container assembly 2 .

In this embodiment, the design of the fixed wall section 541 is not smaller than the deformed wall section 542, which can effectively reduce the deformation of the deformed wall section 542 and the second inner wall section 552 and ensure that the straw 6 The effect of not being blocked. In detail, even if the fixed wall section 541 and the first inner wall section 551 are slightly separated from the outer container 4 due to repeated use, since the size of the fixed wall section 541 is designed to be relatively large from the beginning, it can still ensure There is no problem that the deformed wall section 542 and the second inner wall section 552 are excessively deformed to block the suction tube 6 .

To sum up, the double-layer container assembly of the present invention can limit the deformation of the inner container 5 to a certain extent because the fixed wall section 541 cannot be detachably connected to the outer container 4, so as to solve the problem of excessive deformation of the inner container at the bottom of the straw. The problem of clogging, so the object of the present invention can be surely achieved.

The above descriptions are only specific embodiments of the present invention, which cannot limit the scope of the claims of the present invention, and the equivalent changes made according to the contents of the claims and descriptions of the present invention shall also be considered by the present invention. covered by the scope of the invention claims.

Claims (3)

1. A double-layer container combination, suitable for containing fluid, comprising an outer container that defines a container space, and an inner container, the outer container is formed with an air inlet channel located at the bottom and communicated between the container space and the outside, the The inner container includes an inner wall located in the container space and surrounding and defining a container space capable of accommodating the fluid, and an inner extension wall extending upwardly from the inner wall, the inner extension wall inseparably connected to the outer container. a container, and defines a communication channel that communicates between the accommodating space and the outside world, and is characterized in that: the inner wall has an inseparable connection to the outer container and is substantially located on one of the two opposite sides of the front and rear of the intake channel The fixed wall segment, and the deformed wall segment connected to the fixed wall segment and mainly made of deformable material and located on the other side of the two opposite sides of the front and rear of the intake passage, the deformed wall segment can be sucked in the fluid When deformed and separated from the outer container, the volume of the accommodating space can be changed in coordination; Wherein, the inner wall has an inner bottom wall, and an inner wall connected between the inner bottom wall and the inner extension wall, and the inner bottom wall cooperates with the inner wall to define the container. a space, the inner wall portion has the fixed wall section and the deformed wall section which extend up and down in the axial direction and are connected to each other in the radial direction opposite to each other, and the cross-sections are matched to form an annular shape; The inner bottom wall portion has a first inner wall section and a second inner wall section extending oppositely from bottom to top and substantially located on opposite sides of the front and rear of the intake passage, respectively. The first inner wall section is connected to the fixed wall section and the The second inner wall segment is inseparably connected to the outer container, the second inner wall segment is connected between the first inner wall segment and the deformed wall segment, and can be deformed and separated from the outer container when the fluid is sucked. Change the volume of the accommodating space in coordination; The left and right side parts of the bottom end of the second inner wall section cannot be detachably connected to the outer container, and the middle part can be separated from or abutted with the outer container. 2 . The double-layer container assembly of claim 1 , wherein the fixed wall section is not smaller than the deformed wall section. 3 . 3 . The double-layer container assembly according to claim 1 , wherein the air inlet passage is an air slit. 4 .

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