KR20200082978A - Liquid storage container and method for filling liquid thereof - Google Patents

Abstract

According to an embodiment of the present invention, a liquid storage container comprises: an external container having a holding space therein and allowing air to flow between the holding space and an external space; an internal container held in the holding space, having an opening part at one side and having a storage container therein communicating with the opening part to be able to store a liquid wherein, if the liquid is stored at the storage space, the internal container is expanded, and if the liquid stored at the storage space is consumed, the internal container is gradually contracted in proportion with consumption of the liquid; and a discharge unit coupled to the external container and selectively discharging, to the outside, the liquid stored in the internal container. An embodiment of the present invention uses a permeable material for the external container protecting the internal container to minimize environmental pollution as compared with a conventional storage container in which an external container is made of a plastic, metal or glass material, simplifies a manufacturing process to exceptionally save manufacturing costs, and is capable of forming variously shaped appearances to enhance aesthetic sensibility.

Description

Liquid storage container and method for filling liquid thereof

The present invention relates to a liquid storage container and a liquid filling method thereof, and more particularly, to a liquid storage container and a liquid filling method capable of storing and discharging a liquid and using the liquid stored therein. will be.

In general, a container for storing liquid in which liquids such as lotions, shampoos, detergents and cosmetics are stored is a container body in which the liquid is stored, and a discharge coupled to the container body to discharge the liquid stored in the container body to the outside through a pumping action It consists of means.

The discharge means includes a pump that generates a pressure difference through a user's manipulation, a nozzle that extends from the pump and is accommodated in the container, and supplies liquid stored in the container to the pump when the pump is operated.

However, the above-described conventional liquid storage container has a problem in that when the liquid stored in the container body is exhausted by a predetermined amount or more, all the remaining liquid in the container body cannot be used.

More specifically, in the conventional container for storing liquid, when the liquid stored in the container body is exhausted by a certain amount or more, a phenomenon occurs in which the liquid adheres to the inner wall of the container body due to viscosity, thereby causing the user to turn off the pump of the discharge means. Even if it works, the liquid attached to the inner wall cannot be moved to the nozzle of the discharge means located at the inner central portion of the container body, and thus there is a problem that it cannot be used.

Therefore, the user discards the container for storing the liquid while the liquid remains, or the discharge means is separated from the container body in order to use the liquid remaining in the container body, the container body is turned over, and the container body is subjected to an impact. A method of discharging the liquid remaining inside the body to the outside was used.

However, in this case, as well as generating environmental pollution, there is a problem in that it is difficult to use and inconvenient in the method for using the residual liquid.

Meanwhile, in the related art, a container for liquid storage to which an airless pump is applied has been developed to solve the above problems.

The container for liquid storage to which the airless pump is applied is provided with an expansion material that increases the internal pressure of the container body whenever the ejection means is operated, gradually reducing the internal space of the container through expansion of the expansion material and moving the liquid toward the ejection means, It is configured to make the liquid fully usable.

In addition, in the related art, a container for liquid storage in which a balloon-type pouch that can be expanded and contracted inside the container body is applied has been developed.

The container for liquid storage to which the pouch in the form of a balloon is applied has a coupling unit that is fastened to the opening of the container body and a flexible pouch that is supported by being coupled to the coupling unit, and the liquid is stored therein, to the pouch through shrinking of the pouch. The stored liquid is configured to be fully usable.

However, all of the above-mentioned conventional liquid storage containers have a complicated manufacturing process, which increases the production cost as the outer container is made of a non-breathable material such as plastic, metal or glass material, and has a recycling rate even after the use of contents is completed. There was a problem that caused low environmental pollution.

In addition, the outer container of the conventional liquid storage container has a limited shape of the shape that can be manufactured due to the limitations of the manufacturing process, and can be easily damaged by external impacts, as well as the manufacturing cost of the outer container rather than the cost of the contents stored therein. There was a problem that this increased.

In addition, conventionally, in order to remove the air remaining inside the outer container to inject the liquid into the pouch, a hole for air discharge is formed on one side of the outer container, or a separate pouch is coupled to the entrance of the outer container. According to the formation of a hole for air discharge of, a separate manufacturing process is added, and thus there is a problem that productivity decreases.

In addition, when the actual liquid is injected, the liquid injected into the inlet side of the pouch is not gradually filled from the lower side of the pouch, and is concentrated in the middle portion of the pouch, thereby causing the pouch to be damaged during the injection of the liquid.

Registered Utility Model Publication No. 20-0387212 Registered Patent Publication No. 10-1930811

The present invention has been devised to solve the above problems, and the object of the present invention is to minimize environmental pollution compared to a conventional storage container in which the outer container is formed of a plastic, metal or glass material, and minimize the manufacturing process. It is to provide a container for a liquid storage and a method for filling the liquid, which can greatly reduce the manufacturing cost and improve the aesthetics by implementing various shapes.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

A container for liquid storage according to an embodiment of the present invention for solving the above problems includes an external container that forms an accommodating space inside and allows air to flow between the accommodating space and the external space; It is accommodated in the accommodation space, an opening is formed on one side, and communicates with the opening therein to form a storage space capable of storing liquid. When the liquid is stored in the storage space, it expands and is stored in the storage space. When the liquid is consumed, the inner container gradually shrinks in proportion to the consumption amount of the liquid; And a discharge unit coupled to the external container and selectively discharging the liquid stored in the internal container to the outside.

The outer container includes a tubular neck portion supporting the inner container and coupled with the discharge portion, and an upper portion formed of a biodegradable plastic material including a radially extending portion from the end of the neck portion; And a lower body joined to the deployment portion and integrally connected to the upper body, forming the accommodation space inside, and formed of a breathable material made of at least one of paper, textiles, woods, and leathers.

The inner container, an annular seating portion that is seated at the end of the neck portion; A ring member disposed inside the seating portion through insert injection, and maintaining the seating portion in an annular shape; And it extends along the vertical direction from the end of the seating portion is accommodated in the receiving space, the storage unit can be stretched.

An airtight protrusion that is in close contact with the discharge portion and seals between the discharge portion and the seat portion may be further formed on an upper surface of the seat portion.

When the insert member is injected, a flow restriction hole or a flow restriction protrusion that restricts the flow of a portion and the other portion of the seating portion formed on the upper and lower sides of the ring member may be further formed.

A ring-shaped reinforcement portion having a relatively thicker thickness may be further formed on the outer surface of the storage portion.

It may be further coupled to the opening to seal the storage space, an airtight member in which an incision groove in which the discharge part is insertable along a central axis direction is formed inside.

The hermetic member is formed of an elastic material and is pressed into the opening when coupled to the opening, and the movement of the inner container can be restricted by pressing the inner container toward the inner surface of the outer container.

In addition, the liquid filling method of the liquid storage container according to an embodiment of the present invention for solving the above problems is formed of a flexible material in the receiving space of the outer container formed of a breathable material to form an inner container to form a storage space inside After inserting, fixing the outer container to the inside of the mold using a mold so that the opening formed in the inner container is exposed to the outer space; Inflating the inner container by injecting air into the inner container, and then injecting a liquid into the inner container; And after the discharge portion is coupled to the external container, removing the mold from the external container.

After injecting air into the inner container to expand the inner container, injecting liquid into the inner container, after inserting the air injection nozzle provided in the air injection means into the storage space through the opening, the Pressing the inner container in the longitudinal direction of the outer container by using an air injection nozzle to extend a predetermined length; While supplying air to the air injection nozzle that pressurizes the inner container through the air injection means to inject air into the inner container, it is in communication with the inner space of the mold through an air discharge hole formed in the mold. By discharging the air contained in the inner space of the mold and the receiving space in communication with the inner space of the mold through the air suction means, the inner container is expanded and the inner space of the mold is formed in a vacuum. step; After removing the air suction means from the mold, airtighting the air discharge hole to maintain the interior space of the mold in a vacuum state; And after removing the air injection nozzle from the internal container, placing the liquid injection nozzle provided in the liquid injection means toward the opening, and injecting the liquid by a preset volume into the expanded storage space.

In addition, the liquid filling method of the liquid storage container according to another embodiment of the present invention for solving the above problems is formed of a flexible material in the receiving space of the outer container formed of a breathable material to form an inner container to form a storage space inside After inserting, the step of pressing the airtight member in which the incision groove is formed along the central axis direction in the opening formed in the inner container to fix the inner container and seal the storage space; After the liquid injection nozzle provided in the liquid injection means is pressed into the incision groove, it is moved to the storage space, and the liquid is injected into the storage space through the liquid injection nozzle at a predetermined volume and the inside container is expanded. step; And after removing the liquid injection nozzle from the hermetic member, coupling the discharge portion to the external container.

According to an embodiment of the present invention, as the outer container protecting the inner container is applied as a breathable material, compared to a conventional storage container formed of a plastic, metal or glass material, the outer container is excellent in workability to improve productivity. Of course, the appearance of various shapes can be implemented to improve the aesthetic sense, and the product can be made lighter. In addition, it is possible to minimize environmental pollution by applying a material with high recyclability, and in order to form the inner space of the outer container in a vacuum state, a plastic or metal that must form a hole for exhausting air on one side of the outer container. , Compared to a conventional storage container made of a material such as glass, the manufacturing process can be simplified to significantly reduce the manufacturing cost.

In addition, when the inner container needs to be expanded for the injection of liquid, the inner container is stretched in the longitudinal direction of the outer container using an air injection nozzle, and then, as air is injected, over-expansion occurs at a portion of the inner container. By preventing the phenomenon that the corresponding part is damaged, it is possible to minimize the defect rate of the product.

In addition, as the airtight member made of an elastic material is pressed into the opening of the inner container, the process of simplifying the process and reducing the production cost can be reduced by excluding the process of previously expanding the inner container using a mold.

1 is a cross-sectional view schematically showing a container for storing liquid according to an embodiment of the present invention.
FIG. 2 is an enlarged view of portion “A” of FIG. 1.
3 is a view schematically showing an operating state of a container for storing liquid according to an embodiment of the present invention.
FIG. 4 is an enlarged view of a portion “B” of FIG. 2.
5 is an enlarged cross-sectional view of a seating portion of an inner container in a liquid storage container according to an embodiment of the present invention.
6 is a view schematically showing a coupling process with a discharge unit when an airtight member is applied to a liquid storage container according to an embodiment of the present invention.
7 is a view schematically showing a state in which the seating portion and the ring member of the inner container are disposed in the container for storing liquid according to an embodiment of the present invention.
8 and 9 are flow charts showing a liquid filling method of a liquid storage container according to an embodiment of the present invention.
10 to 12 are views schematically showing a liquid filling process of a liquid storage container according to an embodiment of the present invention.
13 is a flow chart showing a liquid filling method of a liquid storage container according to another embodiment of the present invention.
14 to 16 are views schematically showing a liquid filling process of a liquid storage container according to another embodiment of the present invention.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. The embodiments described herein can be variously modified. Certain embodiments are depicted in the drawings and may be described in detail in the detailed description. However, the specific embodiments disclosed in the accompanying drawings are only for easy understanding of various embodiments. Therefore, the technical spirit is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood that it includes all equivalents or substitutes included in the spirit and technical scope of the invention.

Terms including ordinal numbers such as first and second may be used to describe various components, but these components are not limited by the above-described terms. The above-mentioned terms are used only for the purpose of distinguishing one component from other components.

In this specification, terms such as “comprises” or “have” are intended to indicate that there are features, numbers, steps, operations, elements, parts, or combinations thereof described in the specification, and one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance. When an element is said to be "connected" or "connected" to another component, it is understood that other components may be directly connected or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle.

On the other hand, "module" or "unit" for a component used in the present specification performs at least one function or operation. Further, the "module" or the "unit" may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of "modules" or a plurality of "parts", excluding "modules" or "parts", which should be performed on specific hardware or performed on at least one processor, may be integrated into at least one module. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In addition, in describing the present invention, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof are abbreviated or omitted.

1 is a cross-sectional view schematically showing a container for storing liquid according to an embodiment of the present invention, FIG. 2 is an enlarged view showing a portion “A” of FIG. 1, and FIG. 3 is a liquid storage according to an embodiment of the present invention It is a view schematically showing the operation state of the container, and FIG. 4 is an enlarged view showing a portion “B” of FIG. 2. In addition, Figure 5 is a cross-sectional view showing an enlarged seating portion of the inner container in the liquid storage container according to an embodiment of the present invention, Figure 6 is a gas-tight member is applied to the container for liquid storage according to an embodiment of the present invention, discharge It is a diagram schematically showing a bonding process with a portion, and FIG. 7 is a diagram schematically showing a state in which a seating portion and a ring member of an inner container are disposed in a liquid storage container according to an embodiment of the present invention.

1 and 2, the container 100 for liquid storage according to an embodiment of the present invention (hereinafter referred to as'liquid storage container 100') includes an external container 110.

The outer container 110 accommodates the inner container 120 to be described later by forming a receiving space 110a inside.

In more detail, the outer container 110 has one side opened to allow entry and exit of the inner container 120. And, inside the outer container 110, a receiving space 110a having a predetermined size communicating with one side of the opening is formed. Accordingly, the outer container 110 accommodates the inner container 120 inserted into the opened one side inside to protect the inner container 120 from the outside, and the inner container 110 can maintain a specific state. (120) can be supported.

In addition, the outer container 110 is formed of a breathable material.

More specifically, the outer container 110 is formed of a breathable material capable of flowing air between the receiving space 110a and the outer space. For example, the outer container 110 may be formed of at least one of paper, textiles, and wood.

Therefore, as the liquid storage container 100 is applied to the external container 110 as a breathable material made of at least one of paper, textiles, and wood, the external container is a conventional storage container formed of plastic, metal, or glass. In comparison, it is possible to improve productivity by being excellent in workability, and to improve aesthetic sense by being able to implement various shapes of external shapes. In addition, it is possible to minimize environmental pollution by applying a material with high recyclability, to make the product lighter, and to further reduce the manufacturing cost by simplifying the process compared to the manufacturing process using materials such as plastic, metal, and glass. have.

The external container 110 will be described in more detail.

The outer container 110 may be formed of a different material.

More specifically, the outer container 110 is formed of a biodegradable plastic material to support the inner container 120, the upper body 111, and is made of at least one of paper, textiles, woods, leathers, and breathable material inside It may include a lower body 112 for receiving the container 120.

The upper body 111 may include a neck portion 1111 and a deployment portion 1112.

The neck 1111 may be formed in a tube shape to support the outer peripheral surface of the inner container 120 through the inner peripheral surface. Then, the neck portion 1111 supports the seating portion 121 of the inner container 120 that is seated at the upper end through the upper end portion and can distribute the load acting in the vertical direction to the inner container 120. In addition, a fastening structure such as a thread or a hook may be formed on the outer circumferential surface of the neck 1111. Accordingly, the neck portion 1111 may be combined with the discharge portion 130 to be described later.

The deployment portion 1112 may extend from the lower end of the neck portion 1111 by a predetermined length in the radial direction of the neck portion 1111 to form a plate-shaped structure on the lower side of the neck portion 1111. In addition, the lower body 112, which will be described later, may be joined to the end of the deployment unit 1112 through processes such as heat sealing, bonding, and fusion, or may be combined using separate fastening means.

On the other hand, the upper body 111 is not necessarily formed of a biodegradable plastic material, it is possible to maintain a predetermined shape during manufacture, it can be applied as one of the recyclable materials.

The lower body 112 is formed in an integral container shape with the upper side open, so that the receiving space 110a can be formed inside, and a plurality of members form the receiving space 110a inside through mutual assembly. It can be formed into a skeleton structure. Here, the lower body 112 may have a preset thickness to maintain the shape of the outer shape even when a predetermined pressure is applied from the outside. In addition, the upper portion of the lower body 112 may be joined to the edge of the deployment portion 1112 constituting the upper body 111 through heat sealing, bonding, fusion, or the like to be integrally connected to the upper body 111. In addition, the lower body 112 is formed of a breathable material, but may be formed in a structure that can further improve ventilation performance through processing such as assembly or drilling. For example, the lower body 112 may be formed with a plurality of through holes or a mesh structure.

On the other hand, the lower body 112 is not limited to paper, textiles, woods, and leathers, and has a high recycling rate, easy disposal and processing, and various materials capable of air distribution compared to materials such as metal, plastic, and glass. It can be applied to either.

In addition, the liquid storage container 100 includes an inner container 120.

1 and 3, the inner container 120 is accommodated in the receiving space 110a of the outer container 110, and an opening 120b is formed to allow liquid to enter and exit from one side. In addition, a storage space 120a communicating with the opening 120b is formed inside the inner container 120 to store liquid.

Meanwhile, the inner container 120 is formed of a stretchable material. For example, the inner container 120 may be formed of any one material of silicone, rubber, or latex, or may be formed of a material produced by a combination of these.

Accordingly, the inner container 120 maintains an expanded state when the liquid is stored in the storage space 120a as shown on the left side of FIG. 3, and the storage space 120a as shown on the right side of FIG. 3. When the liquid stored in) is consumed, it gradually shrinks in proportion to the consumption of liquid.

That is, as the inner container 120 is formed of a stretchable material, when the liquid is consumed, the nozzle 133 located in the storage space 120a is compensated for by automatically compensating for the empty space in the storage space 120a generated by the consumption of the liquid. ), the end of the liquid can be kept in the liquid at all times, and through this, the discharge amount of the liquid can be kept constant, and all the liquid stored in the inner container 120 can be used without leaving it.

The inner container 120 will be described in more detail.

3 and 4, the inner container 120 may include a seating portion 121, a ring member 122 and a storage portion 123.

The seating portion 121 may be formed in a ring shape having a larger width than the inner diameter of the neck portion 1111 constituting the outer container 110. Therefore, the seating portion 121 is seated at the upper end of the neck portion 1111 of the outer container 110 when combined with the inner container 120 is supported by the outer container 110, and accordingly the liquid in the inner container 120 When is stored, it is possible to stably distribute the load acting in the vertical direction on the inner container 120.

In addition, an airtight protrusion 1211 for airtightness with the discharge portion 130 may be further formed on the seating portion 121.

The airtight protrusion 1211 is formed on the upper surface of the seating portion 121 facing the lower surface of the discharge portion 130, and when the discharge portion 130 is coupled to the neck portion 1111 of the outer container 110, the discharge portion 130 ), it is in close contact with the lower surface of the discharge portion 130 and the seating portion 121 can be hermetically sealed.

For example, the airtight protrusion 1211 may be formed in a ring shape integrally connected along the circumferential direction on the upper surface of the seating portion 121, and the end of the airtight protrusion 1211 contacting the discharge part 130 has a circular shape. Can be formed. In addition, the hermetic protrusion 1211 may be formed at an intermediate point between the inner peripheral surface and the outer peripheral surface of the inner container 120 along the radial direction of the inner container 120. However, the airtight protrusion 1211 is not necessarily limited thereto, and may be provided in plural along the radial direction of the inner container 120, or may be changed and applied to a structure capable of maximizing the contact area with the discharge part 130. . In addition, the thickness and height of the hermetic protrusion 1211 may be variously changed and applied according to specifications of the discharge unit 130 to be applied and pressure applied through the discharge unit 130.

Meanwhile, a plurality of injection grooves 1212 may be formed around the seating portion 121.

The plurality of injection grooves 1212 are provided with a plurality of supports provided in the injection mold 200 in order to prevent the ring member 122 to be described later inserted into the seating portion 121 from being lowered when the insert is injected. A structure (not shown) may be formed when supporting the lower surface or side surface of the seating portion 121 corresponding to the ring member 122. Through this, the ring member 122 flows from the inside of the seating portion 121 and can be stably disposed at a preset position without deviating from the set position or twisting.

The ring member 122 is disposed inside the seating portion 121 through insert injection, so that the seating portion 121 can be maintained in a ring shape. Here, the ring member 122 may be formed of a material different from the seating portion 121 formed of a stretchable material to maintain the original shape even when a predetermined load is applied.

Accordingly, when the size of the load acting in the vertical direction on the seating portion 121 supported by the neck portion 1111 of the outer container 110 is filled with liquid in the inner container 120, the ring member 122 increases Edo, preventing deformation of the seating portion 121 from the inside of the seating portion 121, the seating portion 121 is separated from the neck 1111 of the outer container 110, the receiving space 110a of the outer container 110 ).

For example, the ring member 122 is formed in a circular or polygonal shape, and may be formed of a steel material such as SUS. However, the ring member 122 is not necessarily limited to this, and can be changed and applied to various shapes and materials.

In addition, referring to FIG. 5, the ring portion has a flow restriction hole 1221 or a flow restriction limiting flow of a portion and other portions of the seating portion 121 formed on the upper and lower sides of the ring member 122 when the insert is injected. A protrusion 1222 may be further formed.

Referring to (a) of FIG. 5, the flow restriction hole 1221 is formed in plural number inside the ring member 122 along the circumferential direction, and of the ring member 122 along the radial direction of the ring member 122. It may be formed in the intermediate portion between the outer peripheral surface and the inner peripheral surface of the ring member 122.

Therefore, the material forming the seating portion 121 is filled in the flow restriction hole 1221 during insert injection, and thereby the seating portion formed on the upper and lower sides of the ring member 122 around the ring member 122 ( 121) a part and the other part may be integrally connected to the material filled in the flow proposal hole to restrict flow.

Referring to (b) of FIG. 5, the flow limiting projections 1222 are formed in plural on the upper and lower surfaces of the ring member 122 along the circumferential direction, respectively, and preset positions along the radial direction of the ring member 122 Can be formed on.

Accordingly, a portion and the other portion of the seating portion 121 formed on the upper and lower sides of the ring member 122 around the ring member 122 when the insert is injected, a plurality of protruding from the upper and lower surfaces of the ring member 122 The flow may be limited by being supported by the flow restriction protrusion 1222.

2 and 3, the storage unit 123 extends downward from the end of the seating portion 121 along the vertical direction to form a storage space 120a inside, and the seating portion 121 is an external container. When seated on the neck 1111 of the 110, it may be disposed in a state accommodated in the receiving space (110a). Therefore, the storage unit 123 may expand when the liquid is injected into the storage space 120a and contract when the liquid is consumed.

Meanwhile, a ring-shaped reinforcing portion 1231 having a relatively thicker thickness than that of the other portion may be further formed on one of the outer surfaces of the storage portion 123.

The reinforcing portion 1231 is formed of the same material as the storage portion 123, and is expanded or contracted with the storage portion 123, and may be formed at a portion where a parting line is formed upon injection.

That is, the storage portion 123 is formed of an inner container ((1)) by forming a ring-shaped reinforcing portion (1231) having a relatively thicker thickness than the other portion on the forming portion of the parting line, which is less rigid than other portions upon injection. 120) can improve the durability. Accordingly, when filling the liquid, it is possible to prevent the breakage of the inner container 120 and to stably inject the liquid, as well as minimize the defect rate of the inner container 120 and further improve the productivity.

However, the reinforcing part 1231 is not necessarily manufactured through an injection method, and may also be manufactured through a press method according to the length and shape to be produced.

In addition, the container 100 for storing liquid includes a discharge unit 130.

2 and 3, the discharge unit 130 is coupled to the outer container 110 and selectively discharges the liquid stored in the inner container 120 to the outside.

In more detail, the discharge part 130 is in close contact with the fastening part 131 fastened to the neck 1111 of the outer container 110 and the upper surface of the inner container 120 to open the opening 120b of the inner container 120. The pumping means 132 discharges the liquid stored in the inner container 120 to the outside by airtighting and generating a pressure difference through the lifting motion, and the storage space 120a of the inner container 120 coupled to the pumping means 132 It may include a nozzle 133 that maintains the inserted state and supplies the liquid stored in the inner container 120 to the pumping means 132 when a pressure difference is generated by the pumping means 132.

However, the discharge unit 130 is not necessarily limited thereto, and various structures and shapes capable of selectively opening and closing the opening 120b of the inner container 120 and discharging the liquid stored in the inner container 120 to the outside. Can be changed to

In addition, the liquid storage container 100 may further include an airtight member 140.

Referring to FIG. 6, the airtight member 140 is coupled to the opening 120b to seal the storage space 120a, and an incision groove 141 is provided along the central axis so that the discharge part 130 is press-fit inside. Can be formed.

Here, the hermetic member 140 may be formed of an elastic material that is compressed when an external force is applied, such as sponge, rubber, silicone, or latex, and is restored to its original state by an elastic force when releasing the external force.

Therefore, the airtight member 140 is pressed into the opening 120b when coupled to the opening 120b, presses the inner container 120 toward the inner surface of the outer container 110, thereby fixing the inner container 120 In addition to limiting the movement of the inner container 120, the storage space 120a of the inner container 120 can be sealed. And, even when the nozzle 133 of the discharge portion 130 is inserted into the incision groove 141, the hermetic member 140 is in close contact with the outer surface of the nozzle 133 by an elastic force, and the hermetic member 140 and the nozzle 133 ), of course, even when the nozzle 133 of the discharge unit 130 is removed from the airtight member 140, the cutting groove 141 is automatically airtight by the elastic force of the airtight member 140. As it becomes possible, it is possible to prevent the leakage of the liquid stored in the inner container 120.

In addition, referring to the enlarged portion of FIG. 6, on one side of the incision groove 141, the width of the cross section gradually narrows along the insertion direction of the nozzle 133 so that the nozzle 133 can be inserted smoothly ( A wedge) insertion guide groove 141a may be further formed.

On the other hand, referring to Figure 7, the inner container 120 is fixed in the outer container 110 through the airtight member 140, as the movement is limited, the seating portion 121 and the ring member 122 in a form excluding Can be formed. Through this, it is possible to reduce the time and cost spent to manufacture the seating portion 121 of the inner container 120, it is possible to improve the productivity by simplifying the shape of the inner container 120 more.

Hereinafter, a liquid filling method of the liquid storage container 100 according to an embodiment of the present invention (hereinafter referred to as a'liquid filling method of the liquid storage container 100') will be described.

For reference, with respect to each configuration for explaining the liquid filling method of the present liquid storage container 100, for convenience of explanation, the same reference numerals are used while describing the present liquid storage container 100, and the same or overlapping The description will be omitted.

8 and 9 are flowcharts illustrating a liquid filling method of a container for liquid storage according to an embodiment of the present invention, and FIGS. 10 to 12 schematically illustrate a process for filling a liquid in a container for liquid storage according to an embodiment of the present invention It is the figure shown.

8 and 10, in order to fill the liquid storage container 100 with liquid, first is formed of a flexible material in the receiving space 110a of the outer container 110 formed of a breathable material and stored therein After inserting the inner container 120 forming the space 120a, the outer container 110 is molded 200 using the mold 200 so that the opening 120b formed in the inner container 120 is exposed to the outer space. ) Is fixed inside (S100).

In more detail, after inserting the storage portion 123 of the inner container 120 into the receiving space 110a of the outer container 110, the seating portion 121 of the inner container 120 of the outer container 110 It rests on the tip of the neck (1111). Then, the outer container 110 is fixed to the inside of the mold 200 so that the opening 120b of the inner container 120 is exposed to the outer space.

Here, the mold 200 may be divided into a plurality of pieces to seal the interior space through mutual coupling. For example, the mold 200 divided into a plurality is formed in a shape that is symmetrical to each other, and inside each mold 200 is formed in a shape corresponding to half of the outer shape of the neck 1111 provided in the outer container 110. It is extended from the first groove portion 200a and the first groove portion 200a that can support half of the outer shape of the neck portion 1111 provided in the outer container 110, and the deployment portion 1112 and the lower portion of the outer container 110 A second groove portion 200b capable of accommodating half of the sieve 112 may be formed. In addition, in any one of the molds 200 divided into a plurality of air paths that can communicate with the air suction means 400, which will be described later, and the air accommodated in the interior space of the mold 200 can move to the air suction means 400. An air discharge hole 200c performing a role may be formed.

Therefore, the step of fixing the outer container 110 to the inside of the mold 200 so that the opening 120b of the inner container 120 is exposed to the outer space, the opening 120b of the inner container 120 has a mold 200 ) After facing the first groove portion 200a of any one of the molds 200 divided into a plurality of neck portions 1111 of the outer container 110 to face the external space of the 1 By combining the remaining divided mold 200 into any one of the molds 200 described above so that the groove portion 200a surrounds the rest of the neck portion 1111 of the outer container 110 exposed to the outer space, the outer container 110 can be fixed to the inside of the mold (200). At this time, the neck portion 1111 of the outer container 110 may be formed in a state protruding a predetermined length to the outside of the mold 200 for coupling with the discharge portion 130 in a state supported by the mold 200.

Meanwhile, the inner space of the mold 200 formed through the second groove portion 200b may be formed to have a larger size than the lower body 112 of the outer container 110 accommodated in the inner space. More specifically, the width and length of the inner space of the mold 200 may be formed to have a larger value than the width and length of the lower body 112 of the outer container 110. Through this, the outer container 110 of various shapes and sizes can be accommodated in the inner space of the mold 200 without being limited by the shape and size of the outer container 110.

In addition, a connection port (not shown), which protrudes outwardly and can be coupled to the air suction means 400 to be described later, may be further formed at a portion where the air discharge hole 200c is formed. Various connection fastening structures may be applied to the connection port for stable coupling with the air suction means 400. In addition, the mold 200 in which the air outlet holes 200c are formed among the divided plurality of molds 200 may be disposed in a fixed state by maintaining a state connected to the air suction means 400. Accordingly, when the outer container 110 is installed inside the mold 200, only the mold 200 in which the air discharge hole 200c is not formed is repeatedly moved according to a preset movement command to quickly externally in a minimal process. The container 110 may be fixed to the inside of the mold 200. However, a connection port is not necessarily formed in the mold 200, and various structures for connection with the air suction means 400 may be applied. In addition, the mold 200 in which the air discharge hole 200c is formed does not necessarily maintain a state connected to the air suction means 400, and may be selectively combined with the air suction means 400 as necessary.

Next, referring to FIG. 8, the air is injected into the inner container 120 to expand the inner container 120, and then the liquid is injected into the inner container 120 (S200 ).

The above process will be described in more detail.

9 and 11, after inserting the air injection nozzle 300a provided in the air injection means 300 into the storage space 120a through the opening 120b, using the air injection nozzle 300a The inner container 120 is pressed in the longitudinal direction of the outer container 110 to extend by a predetermined length (S210). That is, the liquid filling method of the liquid storage container 100, before injecting air into the inner container 120, the length of the outer container 110 to the inner container 120 using the air injection nozzle (300a) When extending in the direction, when the air is injected without extending the inner container 120, it is possible to prevent a phenomenon in which the corresponding portion is damaged due to over-expansion in a region adjacent to the air injection nozzle 300a. And, by supplying air to the air injection nozzle (300a) that pressurizes the inner container 120 through the air injection means 300, while injecting air into the inner container 120, the air formed in the mold 200 The inner space of the mold 200 and the receiving space 110a communicating with the inner space of the mold 200 through the air suction means 400 communicating with the inner space of the mold 200 through the discharge hole 200c By discharging the air to the outside, the inner container 120 is expanded and the inner space of the mold 200 is formed in a vacuum state (S220). Then, after removing the air suction means 400 from the mold 200, the air outlet hole 200c is hermetically sealed through a separate hermetic means 500 to maintain the interior space of the mold 200 in a vacuum state (S230). ). For example, the separate airtight means 500 may be formed of an airtight paper that can be attached to a portion of the air outlet hole 200c or a separate cap or an air outlet hole 200c. However, the airtight means 500 is not limited to this, and may be changed and applied in various forms. Then, after removing the air injection nozzle (300a) from the inner container 120, the liquid injection nozzle (600a) provided in the liquid injection means 600 toward the opening (120b) side, and to the expanded storage space (120a) The liquid is injected as much as a preset volume (S240).

Next, referring to FIGS. 8 and 12, after the discharge unit 130 is coupled to the external container 110, the mold 200 is removed from the external container 110 (S300 ).

More specifically, after the liquid is injected into the inner container 120, the liquid injection nozzle 600a disposed on the inlet side of the inner container 120 is separated from the inner container 120. Then, the nozzle 133 of the discharge unit 130 is inserted into the storage space 120a of the inner container 120 in which the liquid is stored, and at the same time, the pumping means 132 of the discharge unit 130 is hermetically closed (1211). After closely contacting the upper surface of the formed seating portion 121 to seal the opening portion 120b of the inner container 120, the discharge portion to the neck portion 1111 of the outer container 110 protruding a predetermined length outside the mold 200 The fastening part 131 of 130 is fastened. Then, the mold 200 surrounding the outer container 110 in a state in which the discharge unit 130 is supported through a fastening device (not shown) for fastening the discharge unit 130 to the external container 110 is provided to the external container ( 110).

Hereinafter, a liquid filling method of the container 100 for liquid storage according to another embodiment of the present invention will be described.

For reference, each configuration for explaining the liquid filling method of the liquid storage container 100 according to another embodiment of the present invention is used while describing the liquid filling method of the liquid storage container 100 for convenience of description The same reference numerals are used, and the same or duplicate description will be omitted.

13 is a flowchart illustrating a liquid filling method of a liquid storage container according to another embodiment of the present invention, and FIGS. 14 to 16 schematically show a liquid filling process of a liquid storage container according to another embodiment of the present invention It is a drawing.

13 and 14, in order to fill the liquid storage container 100 with liquid, first formed of a flexible material in the receiving space 110a of the outer container 110 formed of a breathable material and stored therein After inserting the inner container 120 forming the space 120a, the airtight member 140 in which the incision groove 141 is formed along the central axis direction in the opening 120b formed in the inner container 120 is press-fitted. The inner container 120 is fixed and the storage space 120a is sealed (S100'). Here, the hermetic member 140 does not necessarily need to be pressed into the opening 120b of the outer container 110 after the inner container 120 is inserted into the outer container 110, and the inner container 120, if necessary. After being inserted into the opening 120b of the first, it may be press-fitted into the outer container 110 together with the inner container 120.

Next, referring to FIGS. 13 and 15, the liquid injection nozzle 600a provided in the liquid injection means 600 is pressed into the incision groove 141 and then moved to the storage space 120a, and the liquid injection nozzle ( Injecting the liquid to the storage space 120a through a predetermined amount through 600a) and simultaneously expanding the inner container 120 (S200'). Here, the liquid injection nozzle 600a moved to the storage space 120a is capable of injecting liquid at any location of the storage space 120a, and of course, moves to the storage space 120a and moves the inner container 120. After pressurizing in the longitudinal direction of the outer container 110 to extend a predetermined length, the liquid may be injected into the storage space 120a.

Next, referring to FIGS. 13 and 16, after removing the liquid injection nozzle 600a from the hermetic member 140, the discharge unit 130 is coupled to the external container 110 (S300 ′).

In more detail, after removing the liquid injection nozzle 600a from the airtight member 140, the nozzle 133 of the discharge part 130 is pressed into the cutout groove 141 of the airtight member 140 to discharge the part 130 The nozzle 133 is inserted into the storage space 120a of the inner container 120 in which the liquid is stored, and at the same time, the pumping means 132 of the discharge unit 130 of the hermetic member 140 and the outer container 110 are inserted. After being in close contact with the upper surface, the fastening portion 131 of the discharge portion 130 is fastened to the neck portion 1111 of the outer container 110. Here, when the liquid injection nozzle 600a is removed from the airtight member 140, the incision groove 141 formed in the airtight member 140 is installed in a compressed state in the opening 120b of the inner container 120 ( 140), it is possible to prevent the leakage of the liquid stored in the inner container 120, due to the airtightness by the elastic force.

As described above, according to an embodiment of the present invention, as the outer container 110 protecting the inner container 120 is applied as a breathable material, the outer container is made of plastic, metal, or glass material, compared to a conventional storage container. By being excellent, it is possible to improve productivity, as well as to implement a variety of shapes to improve the aesthetic sense, and to reduce the weight of the product. In addition, it is possible to minimize environmental pollution by applying a material with high recyclability, and in order to form the inner space of the outer container in a vacuum state, a plastic or metal that must form a hole for exhausting air on one side of the outer container. , Compared to a conventional storage container made of a material such as glass, the manufacturing process can be simplified to significantly reduce the manufacturing cost.

In addition, when the inner container 120 needs to be expanded for the injection of liquid, the inner container 120 is extended in the longitudinal direction of the outer container 110 using the air injection nozzle 300a, and then air is injected. Accordingly, it is possible to prevent a phenomenon in which the corresponding part is damaged due to over-expansion at a part of the inner container 120, thereby minimizing the defective rate of the product.

In addition, as the airtight member 140 made of an elastic material is pressed into the opening 120b of the inner container 120, the process of pre-expanding the inner container 120 using the mold 200 is simplified to simplify the process. And reduce production costs.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is usually in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. It is of course possible to perform various modifications by a person having knowledge of, and these modifications should not be individually understood from the technical idea or prospect of the present invention.

100. Liquid storage container
110. External container
110a. Accommodation space
111. Upper Body
1111.
1112.Expansion
112. Lower Body
120. Internal container
120a. Storage space
120b. Opening
121.
1211. Confidential projection
1212. Injection groove
122. Ring member
1221. Flow restriction hole
1222. Flow restriction projection
123. Storage
1231.Reinforcement
130. Discharge part
131.
132. Pumping means
133. Nozzle
140. Airtight member
141.Incision groove
141a. Insertion guide groove
200. Mold
200a. First groove
200b. Second groove
200c. Air vent
300. Air injection means
300a. Air injection nozzle
400. Air suction means
500. Confidential means
600. Liquid injection means
600a. Liquid injection nozzle
L. Liquid

Claims (11)

An outer container that forms an accommodation space inside and allows air to flow between the accommodation space and the outside space;
It is accommodated in the accommodation space, an opening is formed on one side, and communicates with the opening therein to form a storage space capable of storing liquid. When the liquid is stored in the storage space, it expands and is stored in the storage space. When the liquid is consumed, the inner container gradually shrinks in proportion to the consumption amount of the liquid; And
A discharge unit coupled to the external container and selectively discharging the liquid stored in the internal container to the outside;
Container for liquid storage comprising a. According to claim 1,
The external container,
An upper body formed of a biodegradable plastic material including a tubular neck portion supporting the inner container and coupled to the discharge portion, and a deployment portion extending radially from the end of the neck portion; And
A lower body joined to the deployment part and integrally connected to the upper body, forming the accommodation space inside, and formed of a breathable material made of at least one of paper, textiles, woods, and leathers;
Container for liquid storage comprising a. According to claim 2,
The inner container,
An annular seating portion seated at an end of the neck portion;
A ring member disposed inside the seating portion through insert injection, and maintaining the seating portion in an annular shape; And
A storage portion extending along the vertical direction from the end of the seating portion to be accommodated in the accommodation space, and to be stretchable;
Container for liquid storage comprising a. According to claim 3,
A container for liquid storage in which an airtight protrusion that is in close contact with the discharge portion and seals between the discharge portion and the seating portion is further formed on an upper surface of the seating portion. According to claim 3,
When the insert is injected into the ring member, the container for liquid storage is further formed with a flow restriction hole or a flow restriction protrusion that restricts the flow of a portion and the other portion of the seating portion formed on the upper and lower sides of the ring member. According to claim 3,
A container for storing liquid is further formed on the outer surface of the storage portion in a ring-shaped reinforcement portion having a relatively thicker thickness than other portions. According to claim 1,
A container for liquid storage, further comprising: an airtight member coupled to the opening to seal the storage space, and an incision groove in which the discharge part is insertable along a central axis direction is formed inside. The method of claim 7,
The hermetic member is formed of an elastic material and is pressed into the opening when coupled to the opening, and pressurizes the inner container toward the inner surface of the outer container to limit movement of the inner container. After inserting an inner container formed of a stretchable material and forming a storage space inside the receiving space of the outer container formed of a breathable material, a mold is used so that the opening formed in the inner container is exposed to the outer space. Fixing the inside of the mold;
Inflating the inner container by injecting air into the inner container, and then injecting a liquid into the inner container; And
Removing the mold from the external container after combining the discharge portion with the external container;
Liquid filling method of a container for a liquid storage comprising a. The method of claim 9,
After inflating the inner container by injecting air into the inner container, the step of injecting the liquid into the inner container,
Inserting an air injection nozzle provided in the air injection means into the storage space through the opening, and then pressing the internal container in the longitudinal direction of the external container using the air injection nozzle to extend a predetermined length;
While supplying air to the air injection nozzle that pressurizes the inner container through the air injection means to inject air into the inner container, it is in communication with the inner space of the mold through an air discharge hole formed in the mold. By discharging the air contained in the inner space of the mold and the receiving space in communication with the inner space of the mold through the air suction means, the inner container is expanded and the inner space of the mold is formed in a vacuum. step;
After removing the air suction means from the mold, airtighting the air discharge hole to maintain the interior space of the mold in a vacuum state; And
Removing the air injection nozzle from the inner container, placing a liquid injection nozzle provided in the liquid injection means toward the opening, and injecting a liquid into a predetermined volume into the expanded storage space;
Liquid filling method of a container for a liquid storage comprising a. After inserting an inner container formed of a stretchable material in the receiving space of the outer container formed of a breathable material and forming a storage space therein, an airtight member having an incision groove formed along the central axis direction in the opening formed in the inner container Simultaneously pressing and fixing the inner container, sealing the storage space;
After the liquid injection nozzle provided in the liquid injection means is pressed into the incision groove, it is moved to the storage space, and the liquid is injected into the storage space through the liquid injection nozzle at a predetermined volume and the inside container is expanded. step; And
Removing the liquid injection nozzle from the hermetic member, and then coupling a discharge portion to the external container;
Liquid filling method of a container for a liquid storage comprising a.

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