Liquid content dispensing container

Abstract

A liquid content dispensing container according to an embodiment of the present invention includes an inner container for accommodating liquid content, an outer container for covering the outside of the inner container, a sealing frame for closing one open side of the outer container and being connected to the inner container and having an air inlet hole formed therein, an air inlet valve installed on the sealing frame and opening and closing the air inlet hole in response to pressure changes inside the outer container, a shoulder for covering the sealing frame and being connected to one side of the outer container and having a discharge flow path formed therein, a nozzle for being connected to the shoulder and having a discharge port formed therein, and a discharge valve installed on the shoulder and opening and closing the discharge flow path in response to the discharge pressure of the liquid content.

Description

[Technical Field]

[0001] The present invention relates to a liquid content dispensing container, and more specifically to a liquid content dispensing container that is provided with a discharge valve that opens and closes the discharge port depending on the discharge pressure of the liquid content, and an air inlet valve that opens and closes the air inlet hole depending on the pressure change inside the container, thereby stably maintaining the sealing and pressure inside the container. [Background technology]

[0002] In today's modern society, in line with the trend of rapid diversification, people of all ages and genders use cosmetics as needed. Women, in particular, use a wide variety of cosmetics and cosmetic products and tools in a wide range of colors, and thanks to research and development by cosmetic-related companies, a wide variety of high-quality cosmetic products and tools are being sold on the market every day.

[0003] The above cosmetics can be classified according to their intended use into cleansing cosmetics used to remove sebum, waste products, and pollutants from the surface of the skin, skin care cosmetics used to properly supply moisture and oil to the skin, color cosmetics used to create beautiful colors, hair cosmetics used to remove foreign substances from the hair or scalp while protecting and nourishing the hair, and perfumes used to dissolve fragrances in alcohol or other liquids to let others smell the fragrance.

[0004] Meanwhile, as interest in the stability of cosmetic compositions and skin care increases with the improvement of living standards, many cosmetics are being produced from natural ingredients. Because these cosmetics do not contain preservatives to minimize skin irritation, they have the disadvantage of being more susceptible to deterioration than cosmetics produced from chemical ingredients. For example, these cosmetics may be contaminated or deteriorated by bacteria infiltration or oxidation of the composition upon contact with air during use.

[0005] Furthermore, among the above cosmetics, containers with simple opening and closing functions have been used to store and use cosmetics in liquid or gel form, such as lotions, creams, gels, shampoos, and rinses. However, these containers have the inconvenience of requiring users to take the cosmetics out of the container with a spatula or their fingers and apply them to the skin or hair.

[0006] Therefore, tube-type cosmetic containers that expel cosmetics to the outside through changes in internal pressure caused by pressure on the container, and pump-type cosmetic containers that suck in and expel cosmetics by pumping action of a pump are used.

[0007] In the case of the tube-type cosmetic container, the user pushes the soft container inward to change the internal pressure of the container, causing the cosmetic contained inside the container to be ejected to the outside through the nozzle outlet.

[0008] However, the above-mentioned tube-type cosmetic containers have the following problems: the cosmetics contained inside the container may still be exposed to the outside through the nozzle outlet and become contaminated; the outer shape of the container shrinks and deforms when the cosmetics are discharged and used, which makes it unsightly; it is difficult to store or use the container upright; and because they are mainly formed from a single container, the cosmetics are easily deteriorated by external factors such as ultraviolet rays and are vulnerable to external impacts.

[0009] The pump-type cosmetic container is comprised of a container body in which the contents are stored, a pressure pump that is attached to the opening of the container body and is operated by pressing, and a nozzle head that is connected to the pressure pump and attached (assembled) to the top of the container body. When the nozzle head, which is exposed to the outside, is pressed downward, the pressure pump pumps, causing the contents stored in the container body to be expelled at a constant rate. This type of pump-type cosmetic container is economical because the contents stored in the container body do not come into contact with the outside air and are not expelled excessively through the nozzle outlet, and has the advantage of being easy to use because it can be operated even when the container body is placed on the floor.

[0010] However, the pump of the above-mentioned pump-type cosmetic container is composed of multiple parts, and each part is structured to work together with each other, which makes the structure complicated and increases the number of parts, which increases the assembly process, time, and manufacturing costs, and there are problems such as insufficient dispensing operation due to manufacturing tolerances or malfunctions during use.

[0011] To address these issues, Korean Utility Model Patent No. 20-0464780 discloses a double-structure storage container with a check valve pumping function. This prior art double-structure storage container, which stores and dispenses contents, is constructed with a resilient tube and a bag containing the contents inside the tube, forming a double structure. A nozzle cap with a discharge hole is attached to the upper joint. An intake check valve is installed to crimp the tube to draw in outside air, and a discharge check valve is installed to crimp a bag to the nozzle cap's discharge hole to discharge the contents to the outside. The bag is sequentially crimped by the pumping action caused by the tube crimping, discharging the contents. This facilitates dispensing and use of the contents, and prevents the contents from deteriorating due to contact with air.

[0012] However, in the conventional technology, the check valve for intake is exposed to the outside, and when outside air is drawn into the container through the check valve for intake, foreign matter from the outside also flows in, which is unhygienic.

[0013] Furthermore, the above-mentioned conventional technology has a structure in which a tube and a bag are sealed together and a nozzle cap having a discharge hole is fitted to the inside of the inlet of the tube and the bag, and there is a problem in that the continuous pressure of the tube causes the gap between the tube and the bag and the nozzle cap to widen, which deteriorates the binding force and sealing force between each component. [Prior art documents] [Patent documents]

[0014] [Patent Document 1] Korean Registered Utility Model No. 20-0464780 (Announced on January 21, 2013) [Patent Document 2] Korean Patent No. 10-1403741 (Announced June 3, 2014) Summary of the Invention [Problem to be solved by the invention]

[0015] In order to solve the above problems, the present invention aims to provide a liquid content dispensing container that includes a discharge valve that opens and closes the discharge flow path depending on the discharge pressure of the liquid content, and an air inlet valve that opens and closes the air inlet hole depending on the pressure change inside the container. When the container is pressed or released, each valve is selectively operated, so that not only is the liquid content smoothly discharged, but the sealing and pressure inside the container are stably maintained. [Means for solving the problem]

[0016] In order to achieve the above-mentioned object, the present invention provides a liquid content dispensing container including an inner container for accommodating liquid content, an outer container covering the outside of the inner container, a sealing frame that closes one open side of the outer container and is connected to the inner container and has an air inlet hole formed therein, an air inlet valve that is installed on the sealing frame and opens and closes the air inlet hole in response to pressure changes inside the outer container, a shoulder that covers the sealing frame and is connected to one side of the outer container and has a discharge flow path formed therein, a nozzle that is connected to the shoulder and has a discharge port formed therein, and a discharge valve that is installed on the shoulder and opens and closes the discharge flow path in response to the discharge pressure of the liquid content.

[0017] The inner container is a pouch container whose shape changes as the liquid content contained therein is used up.

[0018] The inner container is characterized in that it is formed of a soft containing portion in which the liquid content is contained, and a hard connecting portion joined to one side of the containing portion and having an inlet portion formed therein.

[0019] The sealing frame is at least partially inserted into the open portion of the outer container and is formed of a bottom surface, an inner wall extending upward from the bottom surface, and an outer wall spaced apart from the inner wall by a predetermined distance.

[0020] In addition, a through hole is formed on the inside of the inner wall of the sealing frame, through which the inlet of the inner container passes, and a fitting bent portion is formed on the outside of the outer wall and is fitted onto the upper end of the outer container.

[0021] An air inflow guide pipe is formed extending from one side of the air inflow hole of the sealing frame, and a valve insertion hole into which an air inflow valve is inserted is formed on the other side.

[0022] The sealing frame is characterized in that at least one air passage hole is formed at the upper end of the periphery.

[0023] In addition, the shoulder has a first contact protrusion (ring-shaped protrusion) formed on the lower side, and a second contact protrusion formed outside the first contact protrusion at a regular interval, and the first contact protrusion and the second contact protrusion are in close contact with both sides of the joint between the inner container and the sealing frame.

[0024] In addition, a soft sealing ring is formed between the first and second contacting protrusions to be tightly attached to the upper end of the inner container and the sealing frame.

[0025] In addition, at least one valve mounting portion, on which a discharge valve is mounted, is formed at a regular interval on the inner side of the shoulder and extends vertically.

[0026] A shoulder cover is formed on one side of the shoulder to open and close the nozzle outlet.

[0027] The air inlet valve and the outlet valve are each a disk valve having a circular plate shape. [Effects of the Invention]

[0028] According to an embodiment of the present invention, a discharge valve that opens and closes the discharge flow path depending on the discharge pressure of the liquid contents and an air inlet valve that opens and closes the air inlet hole depending on the pressure change inside the container are provided. When the container is pressed or released, the respective valves are selectively operated, which not only allows the liquid contents to be discharged smoothly, but also has the effect of stably maintaining the sealing and pressure inside the container.

[0029] According to an embodiment of the present invention, a sealing frame is sandwiched on one open side of an outer container, and the sealing frame is covered with a shoulder, and the air inlet hole and air inlet valve of the sealing frame are arranged inside the shoulder, thereby preventing foreign matter from entering due to the air inlet hole and air inlet valve being exposed to the outside, and allowing for more hygienic use.

[0030] According to an embodiment of the present invention, by simplifying the discharge flow path and the opening and closing of the air inlet hole by pressing or releasing the container, as well as the sealing structure inside the discharge container, it is possible to improve productivity by simplifying the manufacturing process and reducing manufacturing costs, and by minimizing such configurations, it is possible to reduce waste of resources.

[0031] According to an embodiment of the present invention, a sealing frame that closes one side of an outer container is connected to an inner container that contains liquid contents, and the connection portion between the inner container and the sealing frame is covered with a shoulder so that the shoulder is connected to the outer container, thereby increasing the binding force between the inner container and the sealing frame and the sealing force inside the outer container. [Brief explanation of the drawings]

[0032] [Figure 1] 1 is a perspective view of a liquid content dispensing container according to an embodiment of the present invention. [Figure 2] 1 is an exploded perspective view of a liquid content dispensing container according to an embodiment of the present invention. [Figure 3] 1 is a cross-sectional view of a liquid content dispensing container according to an embodiment of the present invention. [Figure 4] 10A and 10B are cross-sectional views illustrating a manner in which an outer container is pressed according to an embodiment of the present invention. [Figure 5] A partial enlarged view of Figure 4. [Figure 6] 10A and 10B are cross-sectional views illustrating a manner in which the pressure on the button is released according to the embodiment of the present invention. [Figure 7] A partial enlarged view of Figure 6. DETAILED DESCRIPTION OF THE INVENTION

[0033] The following detailed description of the present invention refers to the accompanying drawings, which illustrate, by way of example, embodiments in which the present invention may be practiced. These embodiments are described in detail to fully enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention, although different from one another, are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein in connection with one embodiment may be embodied in other embodiments without departing from the spirit and scope of the present invention. It should also be understood that the location or arrangement of individual components within each described embodiment may be changed without departing from the spirit and scope of the present invention.

[0034] Accordingly, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention is limited only by the appended claims, when properly set forth, along with the full scope of equivalents to which such claims are entitled. Like reference numerals in the drawings indicate the same or similar functionality in various aspects.

[0035] The terms used in the present invention are currently widely used and general terms that have been selected while taking into consideration the functions of the present invention, but these terms may change depending on the intentions of engineers in the field, precedents, the emergence of new technologies, etc. In addition, in certain cases, the applicant may arbitrarily select terms, and in such cases, the meanings thereof will be described in detail in the relevant description of the invention. Therefore, the terms used in the present invention should not be simply defined by their names, but should be defined based on the meanings of the terms and the overall content of the present invention.

[0036] In the present invention, when a part "comprises" a certain component, this does not mean that other components are excluded, and means that other components may also be included, unless otherwise specified.

[0037] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a liquid content dispensing container according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0038] FIG. 1 is a perspective view of a liquid content dispensing container according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a liquid content dispensing container according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of a liquid content dispensing container according to an embodiment of the present invention.

[0039] As shown in the figure, a liquid content dispensing container according to an embodiment of the present invention may be configured to include an inner container 10, an outer container 20, a sealing frame 30, an air inlet valve 40, a shoulder 50, a nozzle 60, and a dispensing valve 70.

[0040] The liquid content dispensing container according to the embodiment of the present invention will be described below in terms of each of its components.

[0041] The inner container 10 is a storage container in which liquid contents are stored, and the liquid contents are safely stored by maintaining a vacuum inside. The liquid contents may include liquid or gel contents such as cosmetics, shampoo, or soap. Here, the inner container 10 is preferably a pouch container whose shape changes as the liquid contents stored therein are used up.

[0042] The inner container 10 may be formed of a soft containing portion 12 in which liquid contents are contained, and a hard connecting portion 14 connected to the containing portion 12 and connected (assembled) to the shoulder 30.

[0043] As shown in FIG. 2, an inlet 14a is formed on one side of the coupling part 14. The inlet 14a penetrates the center of the sealing frame 30, and liquid contents are poured through the inlet 14a. A joint 14b is formed on the opposite side of the inlet 14a, and the container 12 is joined to cover the joint 14b. A first fastening protrusion 14c protrudes from the outer periphery of the inlet 14a, allowing the inlet 14a to be detachably coupled (assembled) to the sealing frame 30. Meanwhile, a hooking protrusion 14d protrudes outward between the inlet 14a and the joint 14b of the coupling part 14 to be hooked to the lower surface of the sealing frame 30. This not only prevents the inner container 10 from moving freely above the sealing frame 30, but also complements the sealing force inside the outer container 20 by the upper surface of the hooking protrusion 14d contacting the lower surface of the sealing frame 30.

[0044] The outer container 20 protects the inner container 10 by covering the outside of the inner container 10. The outer container 20 is in the form of a hard oval cylinder with one side open, and constitutes the exterior of a liquid content dispensing container. Of course, the outer container 20 is not limited to an oval cylinder shape, and may be formed in various shapes and materials depending on the type of content stored therein, usability, or design elements. However, the outer container 20 preferably has a narrow width, a relatively long length, and a gently sloping bottom so that it can be easily held by a user and placed upright on the floor.

[0045] 3, a protrusion may be formed on the outer circumferential surface of the upper portion of the outer container 20, and may be fixedly coupled to a protrusion formed on the inner circumferential surface of the shoulder 50. Here, the protrusion formed on the outer container 20 may be formed partially on the outer circumferential surface of the outer container 20 or may be formed entirely along the outer periphery of the outer container 20, taking into consideration the bonding strength between the respective components and ease of assembly. In the drawings of the liquid content dispensing container according to the embodiment of the present invention, the outer container 20 and the shoulder 50 are illustrated as being coupled by an undercut, but this is not limited thereto, and various coupling methods may be used, such as coupling between a protrusion and a recess, or forced fitting or joining.

[0046] The sealing frame 30 closes one open side of the outer container 20 and seals the interior of the outer container 20. As shown in Fig. 2, the sealing frame 30 is formed in the shape of a three-dimensional ring having a certain space on the inside of the upper portion, and at least a portion of the sealing frame 30 can be inserted into the open portion of the outer container 20.

[0047] The sealing frame 30 may be formed of a bottom surface 32, an inner wall 34 extending upward from the bottom surface 32, and an outer wall 36 spaced apart from the inner wall 34 by a predetermined distance.

[0048] A second fastening protrusion 34a is formed protruding toward the center on the inner wall 34 of the sealing frame 30. The second fastening protrusion 34a is detachably coupled to a first fastening protrusion 14c formed on the inner container 10, and a through-hole 34a is formed inside the inner wall 34, through which the inlet 14a of the inner container 10 can pass.

[0049] The outer wall 36 of the sealing frame 30 is in close contact with the upper inner circumferential surface of the outer container 20, and a mating bent portion 36a is formed on the outer side of the outer wall 36 to be fitted and coupled to the upper end of the outer container 20. The mating bent portion 36a may include a first mating bent portion 36a-1 that is extended outward from the outer wall 36 and seated on the upper end of the outer container 20, and a second mating bent portion 36a-2 that is extended below the first mating bent portion 36a-1 and is in close contact with the upper outer circumferential surface of the outer container 20. Here, the first mating bent portion 36a-1 of the mating bent portion 36a may be stably fixed as its upper end is pressed by a shoulder 50. That is, the mating bent portion 36a is preferably in the shape of a ring that is integrally connected to the outer side of the sealing frame 30 so as to be hooked and fixed to the upper end of the outer container 20.

[0050] Meanwhile, the sealing frame 30 may be formed with an air inlet hole 38 that allows external air to flow in in response to changes in the internal pressure of the outer container 20. As shown in Fig. 3, the sealing frame 30 has a protrusion 32a extending upward from the bottom surface 32. The protrusion 32a has a certain height, is open at the bottom, and the air inlet hole 38 may be formed at the top surface. An air inlet valve 40 is inserted into the space inside the open bottom of the protrusion 32a, thereby improving the connection stability of the air inlet valve 40, ease of assembly, and space utilization.

[0051] An air inflow guide pipe 38a extends upward on one side of the air inflow hole 38, and a valve insertion hole 38b into which an air inflow valve 40 is inserted is formed on the other side. The air inflow guide pipe 38a extends vertically from the upper surface of the protrusion 32a of the sealing frame 30 to form a side wall of the air inflow hole 38, and is located in the space surrounded by the inner wall 34, outer wall 36, and shoulder 50 of the sealing frame 30. That is, in the conventional container, the air suction hole is exposed to the outside, and therefore, when external air is sucked into the container through the air suction hole, external foreign matter is also sucked in, resulting in unhygienic conditions. In contrast, in the liquid content dispensing container according to an embodiment of the present invention, the air inlet hole 38 and the air inlet valve 40 are arranged in the internal space of the container between the sealing frame 30 and the shoulder 50 so as not to be exposed to the outside, and an air inlet guide tube 38a is formed outside the air inlet hole 38, thereby preventing external foreign matter from entering the air inlet hole 38 and making it more hygienic to use.

[0052] Meanwhile, at least one air passage hole 39 may be formed at the upper end of the periphery of the sealing frame 30. As shown in Figures 2 and 3, the air passage hole 39 is a recess that penetrates the outer upper surface of the sealing frame 30 to connect the outer and inner spaces of the sealing frame 30, and serves as a passage for allowing external air that has passed through the gap between the upper outer peripheral surface of the outer container 20 and the lower inner peripheral surface of the shoulder 50 to flow into the air inlet hole 38.

[0053] The air inlet valve 40 is installed on the sealing frame 30 and selectively opens and closes the air inlet hole 38 in response to changes in pressure inside the outer container 20. In other words, when the outer container 20 is compressed, the air inlet valve 40 closes the air inlet hole 38 of the sealing frame 30, and then when the pressure on the outer container 20 is released, the air inlet valve 40 is pulled by the vacuum pressure generated inside the outer container 20, opening the air inlet hole 38. At the same time, external air flows into the air inlet hole 38, causing the outer container 20 to return to its original shape. At this time, the air inlet valve 40 is installed so that its center can elastically move in the direction of the inflow of external air.

[0054] As described above, the air inlet valve 40 is inserted into the inner space, i.e., the valve insertion recess 38b, through the open lower portion of the protrusion 32a formed on the sealing frame 30 and fixedly coupled thereto, thereby minimizing exposure of the air inlet valve 40. Here, the air inlet valve 40 is preferably a disk valve having a circular plate shape.

[0055] The shoulder 50 is coupled to one side of the outer container 20 while covering the sealing frame 30. The lower part of the shoulder 50 is preferably an elliptical cylindrical shape having the same width as the outer container 20 for design continuity, and the upper part is preferably a cylindrical or elliptical cylindrical shape having a narrower width than the lower part for ease of use.

[0056] A discharge channel 52 through which the liquid content contained in the inner container 10 passes may be formed at the center of the inner side of the shoulder 50. Here, the discharge channel 52 is connected to the inlet 14a of the inner container 10 and is preferably formed to extend in the same direction as the inlet 14a for smooth discharge of the liquid content.

[0057] As shown in FIG. 3 , the shoulder 50 has a first protrusion (ring-shaped protrusion) 51 formed downward, and a second protrusion 53 formed around the first protrusion 51 at a predetermined distance. The first protrusion 51 and the second protrusion 53 may be closely fitted to both sides of the joint between the inner container 10 and the sealing frame 30. More specifically, the first protrusion 51 is closely fitted to the inner circumferential surface of the inlet 14a of the inner container 10 as it is inserted into the inlet 14a, and the second protrusion 53 is closely fitted to the outer circumferential surface of the inner wall 32 of the sealing frame 30. As a result, the inlet 14a and the inner wall 32 are not spread apart as they are inserted between the first protrusion 51 and the second protrusion 53, and the joint between the inner container 10 and the sealing frame 30, i.e., the joint between the first fastening protrusion 14c and the second fastening protrusion 34a, may be stably maintained.

[0058] Meanwhile, a soft sealing ring 54 is formed between the first and second sealing rings 51 and 53 to adhere to the upper end of the inlet 14a of the inner container 10 and the upper end of the inner wall 32 of the sealing frame 30, thereby maintaining a sealing force inside the outer container 20. The sealing ring 54 is made of an elastic material to improve the sealing force, and is preferably made of one or more of urethane rubber, natural rubber, elastomer, NBR (nitrile-butadiene rubber), and silicone, or elastic polypropylene, polyethylene, and ABS (Acrylonitrile Butadiene Styrene). In particular, it is most preferably made of TPE (Thermo Plastic Elastomer), which is an intermediate material between rubber and plastic and is soft and durable.

[0059] A first upper extension ring 55 may be formed to extend upward from the inner upper portion of the shoulder 50, and a second upper extension ring 57 may be formed to extend upward from the outer side of the first upper extension ring 55 at a predetermined interval. A nozzle 60 is fixedly coupled to the inner surface of the second upper extension ring 57.

[0060] The first upper extension ring 55 is a portion into which the discharge valve 70 (described later) is inserted and seated. The outer circumferential surface of the discharge valve 70 is tightly fitted to the inner circumferential surface of the first upper extension ring 55, thereby preventing the discharge valve 70 from moving horizontally. At least one valve mounting portion 55a is formed on the inner surface of the first upper extension ring 55, and the peripheral portion of the discharge valve 70 can be mounted on the upper end of the valve mounting portion 55a. Preferably, the valve mounting portions 55a are formed vertically and spaced apart at regular intervals along the inner periphery of the first upper extension ring 55. A third upper extension ring 59 is formed on the inner surface of the first upper extension ring 55, spaced apart at regular intervals, and extends upward. The third upper extension ring 59 forms the outer wall of the discharge passage 52, and a central portion of the discharge valve 70 is mounted on the upper end of the third upper extension ring 55.

[0061] Meanwhile, a shoulder cover 80 may be formed on one side of the shoulder 50 to open and close the outlet 62 of the nozzle 60. The shoulder cover 80 is integrally hinged to the shoulder 50 and rotates at a certain angle to open or close the outlet 62 of the nozzle 60. Of course, the shoulder cover 80 may be formed separately from the shoulder 50 and hinged to one side of the shoulder 50. A ring-shaped sealing protrusion 82 protrudes from the inner upper surface of the shoulder cover 80. When the shoulder cover 80 is closed, the sealing protrusion 82 is clamped and covers the end of the nozzle 60 to seal the outlet 62.

[0062] The nozzle 60 is fixedly coupled to one side of the shoulder 50 by being at least partially inserted therein. A discharge port 62 for discharging the liquid contents to the outside is formed at the center of the nozzle 60. The discharge port 62 can be temporarily connected or disconnected from the discharge flow path 52 of the shoulder 50 by a discharge valve 70.

[0063] 3, the nozzle 60 may have a first lower extension ring 61 extending downward, and a second lower extension ring 63 extending downward at a predetermined distance from the first lower extension ring 61. The first lower extension ring 61 is sandwiched and closely attached to the outer circumferential surface of the first upper extension ring 55 of the shoulder 50, and the second lower extension ring 63 is closely attached and fixed to the inner circumferential surface of the second upper extension ring 57 of the shoulder 50.

[0064] Meanwhile, a valve fixing protrusion 64 is formed on the inner side of the nozzle 60 and extends downward. The valve fixing protrusion 64 presses and fixes the upper end of the discharge valve 70 installed on the inner side of the shoulder 50 when the shoulder 50 and the nozzle 60 are coupled together. As a result, the discharge valve 70 can be fixed between the shoulder 50 and the nozzle 60 without any loose movement.

[0065] The discharge valve 70 is mounted on the shoulder 50 and selectively opens and closes the discharge passage 52 of the shoulder 50 in response to changes in pressure inside the outer container 20. In other words, when the outer container 20 is pressed, the discharge valve 70 is pushed up by the discharge pressure generated inside the inner container 10, thereby opening the discharge passage 52 and discharging the liquid content that has moved to the discharge passage 52 to the discharge port 62. When the pressure on the outer container 20 is released, the discharge valve 70 returns to its original shape due to its elastic restoring force, thereby closing the discharge passage 52. At this time, the discharge valve 70 is mounted so that its center can elastically move in the direction in which the liquid content is discharged.

[0066] As described above, the discharge valve 70 is disposed between the shoulder 50 and the nozzle 60, with the outer circumferential surface of the discharge valve 70 being tightly fitted to the inner circumferential surface of the first upper extension ring 55 of the shoulder 50, the peripheral portion being mounted on the upper end of the valve mounting portion 55a, and the upper end being pressed and fixed by the valve fixing ring 64 of the nozzle 60. Here, the discharge valve 70 is preferably a disk valve having a circular plate shape.

[0067] As described above, the liquid content dispensing container according to the embodiment of the present invention is provided with the discharge valve 70 that opens and closes the discharge passage 52 according to the discharge pressure of the liquid content, and the air inlet valve 40 that opens and closes the air inlet hole 38 according to changes in pressure inside the outer container 20. When the outer container 20 is pressed or released, the respective valves are selectively operated, so that not only is the liquid content smoothly discharged, but the sealing and pressure inside the outer container 20 can be stably maintained. Furthermore, by simplifying the opening and closing of the discharge passage 52 and the air inlet hole 38 when the outer container 20 is pressed or released, and the sealing structure inside the outer container 20, productivity can be improved through simplified manufacturing processes and reduced manufacturing costs.

[0068] 4 to 7 are diagrams illustrating the operating process of a liquid content dispensing container according to an embodiment of the present invention, and the operating process of a liquid content dispensing container according to an embodiment of the present invention will be described with reference to these figures.

[0069] FIG. 4 is a cross-sectional view illustrating an example of pressing the outer container according to an embodiment of the present invention, FIG. 5 is a partially enlarged view of FIG. 4, FIG. 6 is a cross-sectional view illustrating an example of releasing the button pressure according to an embodiment of the present invention, and FIG. 7 is a partially enlarged view of FIG. 6.

[0070] In order to use the liquid content dispensing container according to the embodiment of the present invention, first, the shoulder lid 80 is rotated from the shoulder 50 to open the discharge port 62 of the nozzle 60 .

[0071] 4, when the side of the outer container 20 is pressed, the inner container 10 located inside the outer container 20 is pressed together, generating pressure inside thereof, and the liquid contents contained in the inner container 10 move through the inlet 14a to the discharge passage 52. At the same time, as shown in FIG. 5, the discharge valve 70 is pushed up by the discharge pressure of the liquid contents that have moved to the discharge passage 52, opening the discharge passage 52 of the shoulder 50, and the liquid contents are discharged to the outside through the discharge opening 62 of the nozzle 60. At this time, the air inlet hole 38 of the sealing frame 30 remains closed by the air inlet valve 40.

[0072] 6, when the pressure on the side of the outer container 20 is released, the discharge valve 70 returns to its original shape due to its elastic restoring force, closing the discharge port 62 of the nozzle 60. At the same time, as shown in FIG. 7, the air inlet valve 70 is pulled by the vacuum pressure generated inside the outer container 20, opening the air inlet hole 38 of the sealing frame 30. Outside air enters the gap between the outer container 20 and the shoulder 50 and the air passage hole 39, and then flows into the inside of the outer container 20 through the air inlet hole 38, causing the outer container 20 to return to its original shape.

[0073] As described above, the present description has been given using specific details such as specific components, limited embodiments, and drawings, but these are provided merely to facilitate a more comprehensive understanding of the present invention, and the present invention is not limited to the above embodiments. Those skilled in the art will appreciate that various modifications and variations can be made from such descriptions. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all matters equivalent to or having equivalent modifications within the scope of the claims, as well as the following claims, are considered to fall within the scope of the spirit of the present invention. [Explanation of symbols]

[0074] 10: Inner container 12: Storage unit 14:Joining part 14a: Entrance 20: Outer container 30: Sealed frame 32: Bottom 34:Inner wall 36: Exterior wall 38: Air inlet 40: Air inlet valve 50: Shoulder 51: First contact ring 52: Discharge flow path 53: Second contact ring 60: Nozzle 62:Discharge port 70: Discharge valve 80: Shoulder cover 82: Sealed protrusion

Claims

1. an inner container for containing a liquid content; an outer container that covers the outside of the inner container; a sealing frame that closes the open side of the outer container and is coupled to the inner container, the sealing frame having an air inlet hole; an air inlet valve installed in the sealed frame for opening and closing an air inlet hole in response to a change in pressure inside the outer container; a shoulder that covers the sealing frame and is coupled to one side of the outer container, the shoulder having a discharge channel formed therein; a nozzle coupled to the shoulder and having a discharge port formed therein; a discharge valve installed on the shoulder for opening and closing a discharge flow path according to the discharge pressure of the liquid content; A first contact protrusion is formed downward on the shoulder, and a second contact protrusion is formed outside the first contact protrusion at a fixed interval, and the first contact protrusion and the second contact protrusion are in close contact with both sides of the joint between the inner container and the sealing frame.

2. 2. The liquid content dispensing container according to claim 1, wherein the inner container is a pouch container whose shape changes as the liquid content contained therein is used up.

3. The liquid content dispensing container according to claim 1, wherein the inner container is formed of a soft containing portion in which the liquid content is contained, and a hard connecting portion joined to one side of the containing portion and having an inlet portion formed therein.

4. The liquid content dispensing container according to claim 1, wherein at least a portion of the sealing frame is inserted into the open portion of the outer container and is formed of a bottom surface, an inner wall extending upward from the bottom surface, and an outer wall spaced apart at a regular interval from the outer side of the inner wall.

5. The liquid content dispensing container according to claim 4, wherein the sealing frame has a through hole formed on the inside of the inner wall through which the inlet of the inner container passes, and an inset bent portion formed on the outside of the outer wall so as to be extended and fitted onto the upper end of the outer container.

6. 2. The liquid content dispensing container according to claim 1, wherein an air inlet guide tube is formed extending from one side of the air inlet hole of the sealing frame, and a valve insertion hole into which an air inlet valve is inserted is formed on the other side.

7. 2. The liquid content dispensing container according to claim 1, wherein at least one air passage hole is formed at an upper end of the periphery of the sealing frame.

8. 2. The liquid content dispensing container according to claim 1, wherein a soft sealing ring is formed between the first and second contacting protrusions to be in close contact with the upper end of the inner container and the sealing frame.

9. 2. The liquid content dispensing container according to claim 1, wherein at least one valve mounting portion, on which a dispensing valve is mounted, is formed vertically extending at regular intervals on the inside of the shoulder.

10. 2. The liquid content dispensing container according to claim 1, wherein a shoulder cover is formed on one side of the shoulder to open and close the nozzle outlet.

11. 2. The liquid content dispensing container according to claim 1, wherein the air inlet valve and the discharge valve are disk valves in the shape of a disk.

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