CN110589200A - A liquid packaging bag structure - Google Patents

Abstract

The present application discloses a liquid packaging bag structure, the packaging bag structure includes an inner bag and an outer shell, the inner bag is arranged in the outer shell, the inner bag is provided with an opening and a cavity for containing liquid, The outer shell is provided with an accommodating part for placing the inner bag; the liquid in the inner bag is discharged, and the liquid flows out from the inner bag through the opening. Compared with the prior art, the inner bag and the outer shell of the present application cooperate with each other to accommodate and dump liquid, which is highly practical, convenient to use and can greatly reduce the weight of hazardous waste.

Description

A liquid packaging bag structure

technical field

The application belongs to the field of product outer packaging, and in particular relates to a liquid packaging bag structure.

Background technique

Common packaging for existing hazardous chemical reagents is glass bottles. High-quality glass has the advantages of less precipitation of impurities, good chemical compatibility, and can be used to hold a variety of chemical reagents. However, after the use of hazardous chemicals, the packaging in direct contact becomes hazardous solid waste, which must be disposed of by a qualified unit and charged by weight. A 4L glass bottle generally weighs about 1.5kg, which means it becomes 1.5kg of hazardous waste. The charge for hazardous solid waste is currently around 10,000/ton, that is, a 4L glass bottle is regarded as hazardous waste and must be paid to the hazardous waste recycling unit 1.5*10=about 15 yuan, so the biggest problem of glass bottles is the large amount of hazardous waste generated and the high cost of hazardous waste treatment. Secondly, once the glass bottle is broken, it will cause great harm to the use, handling and cleaning personnel.

An existing non-glass packaging structure, which is composed of a disposable inner liner and a long-term use outer barrel, the outer barrel is made of plastic or metal, with a volume ranging from 20L to 1000L, and the top of the barrel is equipped with an air intake The port is connected to the inner liner of the inert gas compression barrel and the liquid in the inner liner, the squeezed liquid is output through the pipeline, and the inner liner is replaced after each use. But this structure also has the following problems: 1) because the liquid inside is extruded by extruding the liner, there is the problem of residual liquid. 2) It is inconvenient to use, and an additional pneumatic piping system must be installed. The material of the outer barrel is made of metal, plastic, etc. The overall weight of the outer barrel with a volume of 20L or even 200L is relatively large, and it cannot be easily dumped manually. It must be equipped with an air pressure pipeline system. 3) The high cost restricts the development of the industry. The purchase of the outer barrel and the installation of the pneumatic pipeline system are quite expensive, so the application field is narrow. At present, it is only used in fields with very large demand and special requirements (such as low moisture content).

Contents of the invention

In view of the shortcomings or deficiencies of the above-mentioned prior art, the technical problem to be solved by the present application is to provide a liquid packaging bag structure with simple structure, convenient use, low cost and strong practicability.

In order to solve the above technical problems, the application is realized through the following technical solutions:

A liquid packaging bag structure, the packaging bag structure includes an inner bag and an outer shell, the inner bag is arranged in the outer shell, the inner bag is provided with an opening and a cavity for containing liquid, and the outer shell is provided with There is a receiving part for placing the inner bag; the liquid in the inner bag is discharged, and the liquid flows out from the packaging bag structure through the opening.

Furthermore, in the above packaging bag structure, the inner bag is an asymmetric structure and its center of gravity is biased to one side.

Furthermore, in the above packaging bag structure, wherein the inner bag includes at least one side forming portion, and the side forming portion encloses and forms a cavity, wherein an opening is reserved for the cavity.

Furthermore, in the above packaging bag structure, when one side forming part is provided, the side forming part is integrally formed, or the ends of the side forming part are fixedly connected.

Furthermore, in the above-mentioned packaging bag structure, wherein, the inner bag further includes at least one bottom surface forming portion, and the bottom surface forming portion cooperates with the side surface forming portion and encloses to form a cavity.

Furthermore, in the above-mentioned packaging bag structure, wherein, the edge of the bottom surface forming part is a straight line or a curved structure, and the edge of the side surface forming part is a straight line or a curved structure, wherein the bottom surface forming part corresponds to the The side forming parts are fitted and connected with each other.

Furthermore, in the above packaging bag structure, a detachable fixing part is further provided on the outer side of the opening.

Furthermore, in the above-mentioned packaging bag structure, a through hole is further provided on the outer casing, and the opening can pass through the through hole when in use.

Furthermore, in the above packaging bag structure, in the state of use, the inner bag is arranged in the outer shell, and the fixing part is arranged near the outside of the through hole.

Furthermore, in the above packaging bag structure, a shaping strip is further provided on the outer side of the opening.

Further, in the above packaging bag structure, a handle is further provided on the shaping strip.

Further, in the above packaging bag structure, wherein, the outer shell wraps around the inner bag, or, the outer shell partially wraps the inner bag.

Further, in the above packaging bag structure, wherein, the through hole is a closed structure or an unclosed structure.

Furthermore, in the above-mentioned packaging bag structure, the outer shell is further provided with holes for easy movement.

Further, in the above packaging bag structure, support parts are further provided on both sides of the outer shell.

Furthermore, in the above packaging bag structure, the inner bag is made of plastic.

Compared with the prior art, the present application has the following technical effects:

The inner bag in this application is lighter than traditional packaging and generates less hazardous waste. Take a glass bottle as a comparison, the 4L glass bottle is 1.5kg, the inner bag of the present invention is only about 1-10% of the weight of the glass bottle, so the weight of hazardous waste is reduced by about 90-99%, and the cost of hazardous waste treatment for enterprises is reduced by 90-99% %, also reduces damage to the environment;

Moreover, after the packaging weight is reduced, customers feel lighter and easier to operate when using the same 4L packaging; the overall weight reduction also reduces transportation costs; replacing traditional glass bottles eliminates the risk of human injury after glass breaks;

The inner bag of this application is made of fluorine-containing materials, no impurities are precipitated, and the quality of liquids such as high-quality chemical preparations it holds is not affected; the outer shell of this application can be made of recyclable materials such as hard paper, plastic, polymer materials, and metals , mainly plays a supporting role and cooperates with the inner bag to facilitate dumping of the internal liquid.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Figure 1: Schematic diagram of the structure of the liquid packaging bag of the present application;

Figure 2: Schematic diagram of the structure of the inner bag in this application;

Figure 3: Structural schematic diagram 1 of the shell in this application;

Figure 4: Structural schematic diagram II of the housing in this application.

Detailed ways

The idea, specific structure and technical effects of the present application will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present application.

As shown in Figure 1, the structure of the liquid packaging bag in this embodiment includes an inner bag 10 and an outer shell 20, the inner bag 10 is arranged in the outer shell 20, and the inner bag 10 is provided with an opening 12 and a cavity 11 for containing the liquid, the shell 20 is provided with a container 21 for placing the inner bag 10; the liquid in the inner bag 10 is discharged, and the liquid passes through the opening 12 from the inner Bag 10 flows out. The inner bag 10 and the outer shell 20 in the present application cooperate with each other to accommodate and dump liquid, which is practical, easy to use and can greatly reduce the weight of hazardous waste.

Wherein, the inner bag 10 is placed inside the outer shell 20, and the outer shell 20 can increase the firmness of the inner bag 10 during transportation, storage and handling, and protect the inner bag 10.

Furthermore, a through hole 22 is provided on the housing 20 , and the opening 12 can pass through the through hole 22 and be set outside when in use. The outer shell 20 has a through hole 22 to facilitate the opening 12 of the inner bag 10 to protrude from the outer shell 20, and the opening 12 is fixed to a certain extent to facilitate dumping.

In this embodiment, the inner bag 10 is made of fluorine-containing materials, such as polytetrafluoroethylene, fluorinated ethylene propylene copolymer (perfluoroethylene propylene copolymer, FEP), tetrafluoroethylene and perfluoroalkoxy Based vinyl ether copolymers (perfluoroalkylated products, soluble polytetrafluoroethylene, PFA), copolymers of tetrafluoroethylene and ethylene, copolymers of tetrafluoroethylene and vinylidene fluoride, etc., the fluorine-containing materials have almost no impurities precipitated, Does not affect the quality of liquids such as high-quality chemicals it holds. Of course, this embodiment can not only be used to place or accommodate chemical reagents, but also can be used to accommodate other liquids except the above chemical reagents. Moreover, by cooperating with the fixed part 13 described below, the pouring or pouring of the liquid contained inside can be realized, which is light in weight and convenient to use. Compared with traditional glass bottles, this embodiment can reduce the weight of hazardous waste by 90% -99%, which reduces the damage to the environment and reduces the cost of hazardous waste treatment for enterprises.

The inner bag 10 has an asymmetric structure and its center of gravity is biased towards one side. In this embodiment, the inner bag 10 has an asymmetric structure and its center of gravity is biased towards one side, which is convenient for pouring liquid. When used in conjunction with the outer shell 20 used to support it, the center of gravity of the inner bag 10 is set close to one of the side walls of the outer shell 20 (Preferably, it is arranged close to the side wall provided with the through hole), which is relatively stable and more conducive to the pouring of liquid.

In the state of use, the inner bag 10 is arranged in the outer shell 20, and the fixing part 13 can be arranged near the outside of the through hole 22, so that the opening part 12 can be fixed from the outside during the middle of dumping. The inner bag 10 is conveniently fixed after the pouring is finished.

In this embodiment, the inner bag 10 is a structure that is small at the top, large at the bottom, or has the same size as the top and bottom. When the inner bag 10 holds liquid, it will be relatively stable when placed alone. The opening 12 can be arranged on the upper or lower part of the inner bag 10. It is convenient and easy to hold or pour liquid. The opening 12 The setting position of can be appropriately selected according to actual needs, which does not limit the protection scope of the present application. This embodiment only illustrates one of the inner bags 10 with a small top and a large bottom, which does not limit the scope of protection of the present application.

The inner bag 10 includes at least one side forming portion, and the side forming portion encloses and forms a cavity, wherein an opening 12 is reserved in the cavity. In this embodiment, as shown in FIG. 2 , only one of the possible implementation modes is shown, that is, the inner bag 10 includes two side forming parts that are mated and connected with each other, and the structure is simple and there are relatively few dead angles. few. Of course, in actual use, multiple side forming portions can also be fixed to each other to form an inner bag 10 with a cavity 11 .

Further, when one side forming part is provided, the side forming part is integrally formed, or the ends of the side forming part are fixedly connected.

In this embodiment, the inner bag 10 also includes at least one bottom surface forming part to enhance the stability of placement, and the bottom surface forming part cooperates with the side surface forming part to form a cavity, wherein the cavity The body also reserves an opening 12 .

Preferably, the side forming part has an asymmetric structure, in order to obtain the inner bag 10 with the center of gravity biased to one side, so that the inner bag 10 can stand more stably.

Wherein, the edge of the bottom forming part is a straight line or a curved structure, and the edge of the side forming part is a straight line or a curved structure, wherein, the bottom forming part and the corresponding side forming part are connected to each other; wherein, One or more side forming parts may be provided. That is, when the edge of the side forming part is a linear structure, the bottom surface forming part used in conjunction with it is also a linear structure, so that the edges of the two can be fixed together to achieve fixing; when the edge of the side forming part is When the curve structure is used, the bottom surface forming part used in conjunction with it is a curved surface structure, so that the edges of the two can be fixed together to achieve fixing; of course, the edge of the side forming part or the bottom surface forming part can also be straight and curved. The combined structure of the structure, that is, part of it is a straight line structure, and part of it is a curved structure.

When the edge of the side forming portion is a straight line structure, the side forming portion may be a non-isosceles quadrilateral structure or a non-isosceles triangular structure, etc. This example is only for illustration and does not limit the protection scope of the present application.

In this embodiment, a fixing part 13 is further provided on the outside of the opening 12 , wherein the fixing part 13 is detachably connected to the outside of the opening 12 . Fix the fixing part 13, and the opening part 12 is closed; open the fixing part 13, and the opening part 12 is opened.

Further, the outer side of the opening 12 is also provided with a shaping strip 14, wherein the shaping strip 14 is fixed on the outside of the opening 12, and the shaping strip 14 can keep the opening 12 in a fixed shape, which is convenient for liquid infusion and pouring.

Wherein, the shaping strip 14 may be made of metal wire, metal strip, metal sheet or other shapeable materials.

In this embodiment, the two shaped strips 14 are preferably arranged in two, and the two shaped strips 14 are oppositely arranged across the opening 12 , wherein the parts beyond the inner bag 10 are fixed to each other. Of course, the shaping strip 14 can also be configured as an integrally formed structure.

Wherein, the handle 15 protruding outwards in the middle of each said shaping strip 14 is used to stretch the shape of the shaping strip 14 conveniently.

The outer shell 20 wraps around the inner bag 10 , or, the outer shell 20 partially wraps the inner bag 10 . Wherein, FIG. 3 and FIG. 4 respectively illustrate two realizable structures of the shell 20 partially enclosing the inner bag 10 .

As shown in Figure 3, it illustrates the situation that the through hole 22 is a closed structure, as shown in Figure 4, it illustrates the situation that the through hole 22 is a non-closed structure, whether it is specifically set as a closed structure or The non-enclosed structure can be properly selected according to actual needs, and it does not limit the protection scope of the present application.

In order to further facilitate the operator to operate the package structure, the housing 20 is also provided with a hole 23 for easy movement, wherein the hole 23 is used to place fingers, so as to lift the package structure, pour the internal liquid or The position of the packaging bag structure is moved; of course, structures such as handles for easy movement can also be provided outside the outer shell 20 .

In order to further improve the stability of the housing 20, support parts 24 are also provided on both sides of the housing 20, wherein the support parts 24 can be a part from the side of the housing 20, and the support parts 24 After being closed, it is just fastened to the side of the support part 24; of course, a mounting bracket can also be provided separately outside the outer shell 20, so that the whole is more stable and convenient for placement during use.

Wherein, the housing 20 can be made of recyclable materials such as hard paper, plastic, polymer material or metal.

The shell 20 can also be provided with a baffle 25 beyond the bottom surface, as shown in FIG. 4 ; of course, the baffle may not be provided, as shown in FIG. 3 .

In this embodiment, the edge of the housing 20 may be one or more combinations of a straight structure and a curved structure. Figure 3 and Figure 4 respectively illustrate two implementations in which the edge of the housing 20 is a straight structure , but it does not limit the protection scope of the present application.

The inner bag in this application is lighter than traditional packaging and generates less hazardous waste. Take a glass bottle as a comparison, the 4L glass bottle is 1.5kg, the inner bag of the present invention is only about 1-10% of the weight of the glass bottle, so the weight of hazardous waste is reduced by about 90-99%, and the cost of hazardous waste treatment for enterprises is reduced by 90-99% %, and also reduces damage to the environment. Moreover, after the packaging weight is reduced, customers feel lighter and easier to operate when using the same 4L packaging; the overall weight reduction also reduces transportation costs; replacing traditional glass bottles eliminates the risk of human injury after glass breaks; The inner bag of this application is made of fluorine-containing materials, no impurities are precipitated, and the quality of liquids such as high-quality chemical preparations it holds is not affected; the outer shell of this application can be made of recyclable materials such as hard paper, plastic, polymer materials, and metals , mainly plays a supporting role and cooperates with the inner bag to facilitate dumping of the internal liquid. Therefore, the present application has broad market application prospects.

It should be understood that although the terms first, second, third, etc. may be used to describe certain components in the embodiments of the present application, these components should not be limited to these terms. These terms are only used to distinguish one component from another. For example, without departing from the scope of the embodiments of the present application, the first XX component may also be called the second XX component, and similarly, the second XX component may also be called the first XX component.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a good or system comprising a set of elements includes not only those elements but also includes items not expressly listed. other elements of the product, or elements inherent in the commodity or system. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or system comprising said element.

The above embodiments are only used to illustrate the technical solution of the present application rather than limit it, and the present application is described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application, and all should be covered within the scope of the claims of the present application.

Claims (16)

1. A liquid packaging bag structure is characterized in that,

the packaging bag structure comprises an inner bag and an outer shell, and the inner bag is arranged in the outer shell;

the inner bag is provided with an opening part and a cavity for containing liquid, and the shell is provided with an accommodating part for placing the inner bag;

discharging the liquid in the inner bag, the liquid flowing out of the inner bag through the opening portion.

2. The bag structure according to claim 1, wherein the inner bag is asymmetric and has a center of gravity shifted to one side.

3. The bag structure according to claim 1 or 2, wherein the inner bag comprises at least one side forming portion, the side forming portion enclosing a cavity, wherein the cavity is provided with an opening.

4. The bag structure according to claim 3, wherein when one of the side forming portions is provided, the side forming portion is of an integrally formed structure, or ends of the side forming portion are fixedly connected.

5. The bag structure of claim 3, wherein the inner bag further comprises at least one bottom forming portion, the bottom forming portion and the side forming portion cooperate with each other and form a cavity.

6. The bag structure as claimed in claim 5, wherein the bottom forming portion has a straight or curved edge and the side forming portion has a straight or curved edge, wherein the bottom forming portion and the side forming portion are cooperatively connected.

7. The packaging bag structure according to claim 1 or 2, wherein a detachable fixing portion is further provided outside the opening portion.

8. The bag structure according to claim 1 or 2, wherein the housing further has a through hole, and the opening is disposed so as to pass through the through hole in a use state.

9. The bag structure according to claim 8, wherein the fixing portion is disposed near an outer side of the through hole when the inner bag is disposed in the outer case.

10. The packaging bag structure according to claim 1 or 2, wherein a shaping strip is further provided outside the opening portion.

11. The bag structure as claimed in claim 10, wherein the shape-fixing strip is further provided with a handle.

12. The bag structure according to claim 1 or 2, wherein the outer shell is wrapped around the inner bag, or the outer shell portion is wrapped around the inner bag.

13. The bag structure as claimed in claim 1 or 2, wherein the through hole is of a closed type or a non-closed type.

14. The bag structure according to claim 1 or 2, wherein the housing is further provided with holes for easy movement.

15. The packaging bag structure according to claim 1 or 2, wherein a support portion is further provided on both sides of the outer case.

16. The packaging bag structure according to claim 1 or 2, wherein the inner bag is made of a fluorine-containing material.