Container for contents comprising pump assembly

Abstract

A content container according to an embodiment of the present invention may comprise: a pump assembly; and a container main body detachably coupled to the pump assembly, the pump assembly including: a cylinder vertically penetrating and providing a passage through which the contents flow in and out; a lower cover coupled to the cylinder and supporting a lower end of an elastic member; the valve rod is used for conveying the contents and supporting the upper end of the elastic component; and an elastic member located between the stem and the lower cover so as to surround the stem, and providing an elastic force from the lower cover to the stem in accordance with an external force, an air passage being formed at an upper end of the lower cover, the air passage is used for eliminating compression and expansion of air caused by compression and decompression of the elastic member.

Description

Technical Field

[0001] The present invention relates to a container for contents including a pump assembly. Specifically, the present invention relates to an environmentally friendly container for contents including a pump assembly that can be easily reused because it can be formed of a single series of materials and having a refillable inner container. Background Art

[0002] Generally, a pump container can be configured such that contents can be discharged to the outside through a pumping action of a pump assembly coupled to the upper part of a container body. The pump container can include: a container body for storing contents; and a pump assembly coupled to the upper part of the container body, and putting the inside of the container body in a vacuum state, and thereby lifting the contents through a pumping action. Among them, the pump assembly is used to perform a pumping action to discharge the contents stored in the container body to the outside, and can include a spring for providing elasticity therein to repeat the pumping action. Generally, the material of the spring is different from other structures of the pump assembly made of plastic. Therefore, in order to reuse the pump assembly, the spring must be separated and discarded, and thus there is a problem that it is not easy to reuse.

[0003] In addition, containers for contents such as pump containers usually need to be discarded after using all the contents, thus causing environmental pollution, and new containers for contents need to be produced each time, thereby there is a problem of an increase in production unit price. Summary of the Invention

[0004] Problems to be Solved by the Invention

[0005] The present invention aims to solve the above problems, and an object thereof is to provide a pump assembly and a container for contents including the same, wherein the pump assembly includes an elastic member made of a single series of materials identical to other structures of the pump assembly.

[0006] In addition, an object of the present invention is to provide a container for contents in which the container body is composed of a reusable outer container and a refillable inner container, and the inner container can be detachably coupled to the outer container, thereby enabling easy refilling.

[0007] The technical problems of the present invention are not limited to the above-mentioned technical problems, and those skilled in the art can clearly understand other technical problems not mentioned based on the following description.

[0008] Means for Solving the Problems

[0009] An inner container according to an embodiment of the present invention may include: a pump assembly; and a container body detachably coupled to the pump assembly. The pump assembly includes: a cylinder vertically penetrating and providing a passage for inflow and outflow of the content; a lower cover coupled to the cylinder and supporting a lower end of an elastic member; a valve stem for transferring the content and supporting an upper end of the elastic member; and the elastic member positioned between the valve stem and the lower cover around the valve stem and providing an elastic force from the lower cover toward the valve stem with an external force. An air passage is formed at an upper end of the lower cover, and the air passage is configured to eliminate compression and expansion of air caused by compression and decompression of the elastic member.

[0010] In addition, the lower cover may include a first seating portion formed in a groove shape inward along a circumferential direction of the lower cover at the upper end, and a lower end of the elastic member is seated in the first seating portion.

[0011] Further, the air passage may be formed as a groove deeper than the first seating portion of the lower cover.

[0012] In addition, a wing portion is formed at an upper end of the valve stem, the wing portion protruding outward along a circumferential direction of the valve stem, and an outer circumferential surface of the wing portion extends downward to form a second seating portion for seating an upper end of the elastic member on a bottom surface of the wing portion.

[0013] Furthermore, the elastic member may be formed in a bellows type.

[0014] Moreover, it further includes: a button portion that, when an external force is applied, causes the pump assembly to operate, thereby discharging the content discharged from the pump assembly to the outside; and a head including a housing portion for detachably coupling the pump assembly to the container body. The pump assembly further includes: a check valve disposed adjacent to an inlet of the cylinder and configured to open and close the inlet of the cylinder; a sealing cover inserted into the cylinder and configured to open and close an inflow portion of a piston rod and support a lower end of the elastic member; and the piston rod inserted into the sealing cover, an inflow portion, a discharge portion, and a connection passage for connecting the inflow portion and the discharge portion are formed in the piston rod, and the internal pressure of the cylinder is changed by lifting and lowering based on the external force. At least a part of the lower cover is inserted into the cylinder to suppress upward movement of the sealing cover. The valve stem is coupled to the piston rod to lift and lower together with the piston rod, and may transfer the content discharged from the discharge portion of the piston rod to the head.

[0015] In addition, it may also include a shell part, which is used to make the pump assembly and the container body detachable, the container body includes an inner container and an outer container, the outer container includes a guide part, the guide part includes a slope, the slope is formed on the inner side surface of the outer container from the upper part to the lower side, the shell part includes a first guide protrusion and a second guide protrusion, the first guide protrusion and the second guide protrusion are formed on the first outer side surface of the shell part in a manner that can move along the slope, when the inner container is combined with the pump assembly through the shell part and rotates relative to the outer container, the first guide protrusion and the second guide protrusion move along the slope, and the inner container is combined with or separated from the outer container in the up and down direction.

[0016] In addition, the guide portion includes a first fixing protrusion formed on the inner side surface of the outer container, and the first fixing protrusion is formed to be separated from the end of the slope by a specified distance. When the inner container rotates in the direction of combining with the outer container, the first guide protrusion passes over the first fixing protrusion, so that the first fixing protrusion is located between the first guide protrusion and the second guide protrusion, thereby allowing the inner container to be combined with and fixed to the outer container.

[0017] In addition, the first guide protrusion and the second guide protrusion may be formed to be spaced apart from each other by a distance corresponding to the length of the first fixing protrusion, and to have an angle corresponding to an inclination angle of the slope.

[0018] In addition, the guide portion may further include: a sliding surface connected to and extending from the slope; and a support portion formed to be spaced apart from the sliding surface to an upper side by a prescribed distance.

[0019] In addition, the first fixing protrusion may be formed to extend from the sliding surface to the upper side to the support portion.

[0020] In addition, it also includes a cover portion, and a coupling groove is formed on the inner side surface of the cover portion at a specified distance from the lower end along the circumference of the cover portion. The shell portion also includes one or more second fixing protrusions, which are formed on the second outer side surface of the shell portion and are used to enable the shell portion and the cover portion to be detachably coupled. The second fixing protrusion is inserted into the coupling groove, thereby allowing the cover portion to be coupled to the shell portion.

[0021] In addition, the first outer side surface is formed on the lower side of the second outer side surface, and may be formed closer to the inner side than the second outer side surface.

[0022] According to another embodiment of the present invention, a container for contents includes:

[0023] Pump components;

[0024] A container body, including an inner container and an outer container; and

[0025] A housing portion for detachably coupling the container body to the pump assembly. The outer container includes a guiding portion, and the guiding portion includes a ramp formed on the inner side surface of the outer container from the upper portion to the lower side. The housing portion includes a first guiding protrusion and a second guiding protrusion formed on a first outer side surface of the housing portion so as to be movable along the ramp. When the inner container is coupled to the pump assembly through the housing portion and rotates relative to the outer container, the first guiding protrusion and the second guiding protrusion move along the ramp, and the inner container can be coupled to or separated from the outer container in the vertical direction.

[0026] In addition, the guiding portion may include a first fixing protrusion formed at a predetermined distance from the end of the ramp. When the inner container rotates in the direction of being coupled to the outer container, the first guiding protrusion passes over the first fixing protrusion, such that the first fixing protrusion is located between the first guiding protrusion and the second guiding protrusion, thereby enabling the inner container to be coupled to and fixed to the outer container.

[0027] Advantages of the Invention

[0028] According to the present invention, by forming the elastic member from a single series of materials that are the same as other structures of the pump assembly, the pump assembly can be discarded at once without separating it, which is thus environmentally friendly and eco-friendly.

[0029] In addition, according to the present invention, by forming an air passage at the upper end of the lower cover, the compression and expansion of air caused by the compression and decompression of the elastic member can be eliminated.

[0030] Furthermore, according to the present invention, a second placement portion for placing the upper end of the elastic member is formed on the bottom surface of the wing portion of the valve stem, and a first placement portion formed in a groove shape along the inner circumference of the lower cover is provided at the upper end of the lower cover. Thus, the lower end of the elastic member is placed in the first placement portion, thereby fixing the elastic member without an additional structure.

[0031] In addition, according to the present invention, a guiding portion is provided on the inner side surface of the outer container. The guiding portion includes a slope formed from the upper part to the lower side, and a first guiding projection and a second guiding projection capable of moving along the slope are provided on the first outer side surface of the housing portion. Thus, when the inner container is coupled to the pump assembly through the housing portion and rotates relative to the outer container, the first guiding projection and the second guiding projection can move along the slope, and the inner container can be coupled to or separated from the outer container in the vertical direction, thereby providing a structure that can be easily refilled. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] To more fully understand the drawings cited in the detailed description of the present invention, a brief description of each drawing will be provided.

[0033] Figure 1 is an exploded perspective view of an inner container according to an embodiment of the present invention.

[0034] Figure 2 is a cross-sectional view of a pump assembly according to an embodiment of the present invention.

[0035] Figure 3 is a perspective view showing a coupling structure of a cover portion, a housing portion, and an outer container according to an embodiment of the present invention.

[0036] Figure 4 Parts (a) and (b) are cross-sectional views showing a pumping operation of an inner container according to an embodiment of the present invention.

[0037] REFERENCE NUMERAL DESCRIPTION

[0038] 100: pump assembly 110: cylinder

[0039] 120: check valve 130: ring

[0040] 140: piston rod 150: seal cap

[0041] 160: under cap 161: first placement portion

[0042] 162: air passage 170: elastic member

[0043] 180: stem 181: second placement portion

[0044] 200: head 210: connecting portion

[0045] 220: housing 230: button portion

[0046] 241: First guiding protrusion 242: Second guiding protrusion

[0047] 251, 252: Second fixing protrusions 300: Cover part

[0048] 310: Engaging groove 400: Container main body

[0049] 410: Inner container 411: First fixing protrusion

[0050] 412: Ramp 413: Fixing groove

[0051] 420: Outer container 1000: Inner contents container Detailed implementation manners

[0052] In the following, exemplary embodiments according to the present invention will be described in detail with reference to the content described in the drawings. In addition, with reference to the content described in the drawings, the configuration and usage method of the device according to the embodiments of the present invention will be described in detail. The same reference numerals or symbols shown in each drawing represent components or elements that perform substantially the same functions. For convenience, the up, down, left, and right directions described hereinafter are based on the drawings, and the scope of the rights of the present invention is not necessarily limited to the described directions.

[0053] Ordinal numbers including first, second, etc. may be used to describe various components, but the components are not limited by the terms. The terms are only used for the purpose of distinguishing one component from other components. For example, without departing from the scope of the rights of the present invention, the first component may be named the second component, and similarly, the second component may also be named the first component. The term "and / or" includes combinations of multiple related items or any one of the multiple related items.

[0054] The terms used in this specification are only used to describe the embodiments and are not used to limit and / or define the present invention. Unless otherwise clearly specified in the context, the singular expression includes the plural expression. In this specification, terms such as "include" or "have" are used to specify the existence of features, numbers, steps, actions, components, elements, or combinations thereof described in the specification, and do not preclude the existence or additional possibility of one or more other features, numbers, steps, actions, components, elements, or combinations thereof in advance.

[0055] Throughout the specification, when a part is referred to as being "connected" to another part, this includes not only the case of "direct connection" but also the case of "indirect connection" with another component intervening therebetween. In addition, when a part "includes" a certain component, this means that other components may also be included rather than excluding other components, unless otherwise specifically stated to the contrary.

[0056] Figure 1 is an exploded perspective view of a container for contents according to an embodiment of the present invention, Figure 2 is a cross-sectional view of a pump assembly according to an embodiment of the present invention, Figure 3 is a perspective view showing a coupling structure of a cap portion, a housing portion, and an outer container according to an embodiment of the present invention, Figure 4 Parts (a) and (b) of are cross-sectional views showing a pumping operation of a container for contents according to an embodiment of the present invention.

[0057] Referring to Figures 1 to 4 Parts (a) and (b) of, a container 1000 for contents according to an embodiment of the present invention may include a pump assembly 100, a head 200, a cap 300, and a container body 400.

[0058] The pump assembly 100 receives an external force applied by a user, thereby generating a pressure change inside it, and inflows and discharges the contents through this pressure change. When pressurized, it can move the contents accommodated in the container body 400 to the head 200 and discharge them. The pump assembly 100 according to an embodiment may include a cylinder 110, a check valve 120, a ring 130, a piston rod 140, a sealing cap 150, a lower cover 160, an elastic member 170, and a valve stem 180.

[0059] The inside of the cylinder 110 may be vertically penetrated, thereby providing a space for inflowing and discharging the contents. In one embodiment, the cylinder 110 is located inside the upper end (e.g., the bottle mouth portion) of the inner container 410, and has a mounting wing protruding outward, whereby it can be mounted on the upper end of the inner container 410. The lower end of the cylinder 110 may extend into the inner container 410, and an inlet communicating with the inner container 410 may be formed.

[0060] The check valve 120 may be disposed at or adjacent to the inlet of the cylinder 110. In one embodiment, the check valve 120 is a backflow prevention valve, which can close the inlet of the cylinder 110 when the internal pressure of the cylinder 110 is positive pressure, and open the inlet of the cylinder 110 when the internal pressure of the cylinder 110 becomes negative pressure.

[0061] The ring 130 may be located between the mounting wing of the cylinder 110 and the upper end (e.g., the bottle mouth portion) of the inner container 410. In one embodiment, the ring 130 may place the mounting wing of the cylinder 110 on the upper end of the inner container 410. The ring 130 may also be omitted. In the case where the ring 130 is omitted, the mounting wing of the cylinder 110 may be directly placed on the upper end of the inner container 410.

[0062] The piston rod 140 can be inserted into the interior of the cylinder 110. The lower side of the piston rod 140 is surrounded by the sealing cover 150, and the upper side of the piston rod 140 is connected to the valve rod 180. The piston rod 140 can have a hollow tube shape. In one embodiment, an inflow portion opened and closed by the sealing cover 150 is formed on the lower side of the piston rod 140, and an outlet for discharging the contents flowing in through the inflow port is formed on the upper side of the piston rod 140, and a connection passage for connecting the inflow port and the discharge portion can be formed. A base portion can be formed at the lower end of the piston rod 140, and when the lower end of the inner surface of the sealing cover 150 is closely attached to the base portion, the space between the inflow portion and the interior space of the cylinder 110 can be sealed.

[0063] In one embodiment, the piston rod 140 can change the internal pressure of the cylinder 110 by lifting and lowering based on an external force. More specifically, the piston rod 140 can move vertically inside the cylinder 110 through the valve rod 180. When the piston rod 140 moves downward, the base portion is separated from the lower end of the inner surface of the sealing cover 150, thereby opening the inflow port, so that the contents inside the cylinder 110 can flow into the interior of the piston rod 140. When the piston rod 140 continues to move, the contents can move to the outlet through the connection passage two and be discharged, then pass through the valve rod 180 and be discharged through the discharge hole of the nozzle. When the piston rod 140 moves upward, the sealing cover 150 can seal the inflow portion of the piston rod 140, and a negative pressure is generated inside the cylinder 110, thereby causing the contents inside the container body 400 to flow into the interior of the cylinder 110.

[0064] The sealing cover 150 is used to open and close the piston rod 140. The outer surface of the sealing cover 150 can be closely attached to the inner surface of the cylinder 110, and the inner surface of the sealing cover 150 can be closely attached to the outer surface of the piston rod 140. The lower end of the inner surface of the sealing cover 150 can be closely attached to the base portion of the piston rod 140, thereby sealing the inflow portion of the piston rod 140. When the piston rod 140 descends, the lower end of the sealing cover 150 is separated from the base portion of the piston rod 140, thereby opening the inflow portion, so that the connection passage between the interior of the cylinder 110 and the piston rod 140 can be communicated.

[0065] The lower cover 160 can be configured to be coupled to the upper end of the cylinder 110, and the lower end of the lower cover 160 extends inwardly of the cylinder 110. The lower cover 160 performs a sealing function and can be referred to as a sealing portion. In one embodiment, the lower cover 160 can include: a side wall in contact with the cylinder 110; and a base portion formed inwardly from the lower end of the side wall. The upward movement of the sealing cover 150 can be suppressed by the bottom surface of the base portion (or a protrusion formed on the bottom surface of the base portion).

[0066] In one embodiment, an air passage 162 may be formed at the upper end of the lower cover 160, and the air passage 162 is used to eliminate the compression and expansion of air caused by the compression and decompression of the elastic member 170. More specifically, when the elastic member 170 is implemented as a bellows type, the compression and expansion of the internal air that occur when the elastic member 170 is compressed and when the compression of the elastic member 170 is released can be eliminated by the air passage 162. In addition, the air passage 162 can also eliminate the compression of the internal air that occurs when the pump assembly 100 is combined with the inner container 410.

[0067] In one embodiment, a groove may be formed along the inner side of the circumference of the lower cover 160 at the upper end of the lower cover 160. Such a groove may be referred to as a first seating portion 161, and the first seating portion 161 supports the lower end of the elastic member 170, and the elastic member 170 is seated on the first seating portion 161, thereby preventing the elastic member 170 from detaching.

[0068] In one embodiment, the air passage 162 may be formed as a groove deeper than the first seating portion 161.

[0069] The elastic member 170 is for restoring the position of the piston rod 140. The lower end of the elastic member 170 may be supported by the lower cover 160, and the upper end of the elastic member 170 may be supported by the valve stem 180. When the user pressurizes the head 200, more specifically, when the user pressurizes the button portion 230, the valve stem 180 and the piston rod 140 move downward, whereby the elastic member 170 can be compressed. At this time, the compression of the internal air caused by the compression of the elastic member 170 can be eliminated by the air passage 162. When the user releases the pressurization of the button portion 230, the elastic member 170 can be restored by its elastic force, whereby the valve stem 180 and the piston rod 140 can be restored to their original positions. At this time, the expansion of the internal air caused by the decompression of the elastic member 170 can be eliminated by the air passage 162.

[0070] In one embodiment, the elastic member 170 may have a length longer than the stroke distance of the piston rod 140. At this time, the length of the elastic member 170 is the length in the steady state where the elastic member 170 is not compressed or extended. For example, it may be a value from 1.4 times to 3 times the stroke distance of the piston rod 140. However, it is not limited thereto, and the length of the elastic member 170 can be variously set according to the material, shape, etc. of the elastic member 170. That is, considering the deformation caused by repeated compression, the length of the elastic member 170 can be determined such that the compression distance of the deformed elastic member 170 can correspond to or be close to the stroke distance of the piston rod 140.

[0071] In one embodiment, the elastic member 170 may be accommodated in the pump assembly 100 in a state where a part of it is compressed. To this end, the elastic member 170 may have a length longer than the accommodation space of the pump assembly 100 (for example, the space between the valve stem 180 and the lower cover 160). For example, the elastic member 170 may have a length of 1.3 to 3 times or 1.7 to 2.2 times the length of each accommodation space, but is not limited thereto. As described above, the elastic member 170 is accommodated in the pump assembly 100 in a form where a part of it is compressed, so that even if the elastic member 170 is deformed due to repeated compression, thereby reducing its recovery rate, the elastic member 170 can operate stably without changing the size of the accommodation space for accommodating the elastic member 170.

[0072] In one embodiment, at least a part of the elastic member 170 may be made of a soft plastic material. For example, it may include polypropylene (PP), polyethylene (PE), etc., but is not limited thereto. As described above, by using soft plastic as the material, it is easy to manufacture the elastic member 170. In addition, the pump assembly 100 can be discarded at once without separation, so it is environmentally friendly.

[0073] In one embodiment, the elastic member 170 may be manufactured by injection molding. Therefore, compared with the case of pneumatic molding, etc., more stable performance can be provided. For example, in the case of manufacturing a bellows-type elastic member 170 by pneumatic molding, the thickness of the elastic member 170 may be formed unevenly. However, in the case of injection molding, such an uneven problem does not occur, so the defective rate is reduced, and the problem of elastic asymmetry can also be solved.

[0074] The valve stem 180 may be coupled in such a way as to move up and down together with the piston rod 140. Specifically, for example, when an external force is applied through the button part 230, the valve stem 180 descends while causing the piston rod 340 to descend, and when the external force is released, the valve stem 180 may rise by the elastic force of the elastic member 170 and at the same time cause the piston rod 140 to rise. In one embodiment, the valve stem 180 may move up and down together with the piston rod 140, thereby transferring the contents discharged from the discharge part of the piston rod 140 to the head 200, and more specifically, to the button part 230.

[0075] In one embodiment, a wing part protruding outward along the circumference may be formed at the upper end of the valve stem 180. The outer circumferential surface of the wing part may extend downward, whereby a second placement part 181 is formed on the bottom surface of the wing part, and the upper end of the elastic member 170 is placed on the second placement part 181. The second placement part 181 supports the upper end of the elastic member 170, and the elastic member 170 is placed on the second placement part 181, so that the elastic member 170 can be prevented from detaching.

[0076] The head 200 can detachably couple the pump assembly 100 and the container body 400 to each other, and the cover 300 is coupled to the head 200 and can discharge the contents discharged from the pump assembly 100 to the outside. The head 200 according to an embodiment may include a connection part 210, a housing part 220, and a button part 230.

[0077] The inner container 410 of the container body 400 is coupled to the inside of the connection part 210, and the housing part 220 is coupled to the outside of the connection part 210. A through hole part and an edge part may be formed inside the connection part 210, and the edge part extends to the center on the inner surface. At this time, the through hole part may be formed at the center of the edge part. In addition, a first coupling groove or a first coupling protrusion is formed on the lower inner surface of the connection part 210 and is coupled to a second coupling protrusion or a second coupling groove formed on the bottle mouth part of the inner container 410, so that the connection part 210 and the inner container 410 can be coupled. In one embodiment, the edge part is disposed on the upper surface of the mounting wing of the cylinder 110, whereby the cylinder 110 can be placed on the upper end (for example, the bottle mouth part) of the inner container 410. More specifically, the connection part 210 is coupled to the inner container 410, and the edge part presses the mounting wing of the cylinder 110 downward, so that the cylinder 110 can be placed on the upper end of the inner container 410. In addition, a third coupling protrusion protruding outward in a circumferential direction along the outer side surface of the lower end of the connection part 210 may be formed. The third coupling protrusion may be coupled to a bent part or a fourth coupling groove formed at the lower end of the housing part 220, whereby the housing part 220 can be coupled to the outside of the connection part 210.

[0078] In one embodiment, the outside of the bottle mouth part of the inner container 410 may be coupled to the inside of the connection part 210. A first rotation prevention part for preventing rotation together with the inner container 410 may be formed on the inner side surface of the connection part 210. The first rotation prevention part may have one or more rotation prevention protrusions protruding, or may include one or more rotation prevention grooves. At this time, a second rotation prevention part corresponding to the first rotation prevention part may be formed on the outer side surface of the bottle mouth part of the inner container 410, and the second rotation prevention part may include one or more rotation prevention grooves or one or more rotation prevention protrusions. When the connection part 210 and the inner container 410 are coupled, the first rotation prevention part may be coupled to the second rotation prevention part, thereby restricting the rotation of the connection part 210 and the inner container 410. For example, the rotation prevention protrusion of the first rotation prevention part may be coupled to the rotation prevention groove of the second rotation prevention part, thereby restricting the rotation of the connection part 210 and the inner container 410. However, such a rotation prevention structure is only exemplary, and other structures capable of restricting the rotation of the connection part 210 and the inner container 410 may also be applied.

[0079] In one embodiment, the inner side of the housing part 220 may be coupled to the outer side of the connection part 210. A third rotation prevention part for preventing rotation together with the housing part 220 may be formed on the outer side surface of the connection part 210. The third rotation prevention part may have one or more rotation prevention protrusions formed to protrude, or may include one or more rotation prevention grooves. At this time, a fourth rotation prevention part corresponding to the third rotation prevention part may be formed on the inner side surface of the housing part 220, and the fourth rotation prevention part may include one or more rotation prevention grooves or one or more rotation prevention protrusions. When the connection part 210 and the housing part 220 are combined, the third rotation prevention part may be combined with the fourth rotation prevention part to limit the rotation of the connection part 210 and the housing part 220. For example, the rotation prevention protrusion of the third rotation prevention part may be combined with the rotation prevention groove of the fourth rotation prevention part to limit the rotation of the connection part 210 and the housing part 220. However, such a rotation prevention structure is merely exemplary, and other structures capable of limiting the rotation of the connection part 210 and the housing part 220 may also be applied.

[0080] According to one embodiment, the co-rotation of the connection part 210 with the inner container 410 and the housing part 220 is restricted, and thus the rotation of the inner container 410 and the housing part 220 can ultimately be restricted. According to one embodiment, when the housing part 220 is rotated, the inner container 410 also rotates together and is coupled to or separated from the outer container 420 in the vertical direction, thereby providing a structure that can be easily refilled.

[0081] The housing part 220 may detachably couple the pump assembly 100 and the container body 400 to each other. In one embodiment, the housing part 220 may include a first outer side surface and a second outer side surface. A part of the outer peripheral surface of each of the first outer side surface and the second outer side surface protrudes outward by a predetermined length, and the protruding edge extends downward.

[0082] The first outer side surface may include a first guiding projection 241 and a second guiding projection 242, and the first guiding projection 241 and the second guiding projection 242 are movably formed along a ramp 412 formed on the inner side surface of the outer container 420. In one embodiment, when the inner container 410 is coupled to the pump assembly through the housing portion 220 and rotates relative to the outer container 420, the first guiding projection 241 and the second guiding projection 242 may move along the ramp 412, so that the inner container 410 can be coupled to or separated from the outer container 420 in the vertical direction. At this time, when the inner container 410 rotates in the direction of being coupled to the outer container 420, the first guiding projection 241 passes over the first fixing projection 411 and is inserted into the fixing groove 413, whereby the first fixing projection 411 is located between the first guiding projection 241 and the second guiding projection 242, so that the inner container 410 can be coupled to and fixed to the outer container 420. In addition, when the inner container 410 rotates in the direction of being separated from the outer container 420, the first guiding projection 241 inserted into the fixing groove 413 passes over the first fixing projection 411 and moves along the ramp 412 of the guiding portion, so that the inner container 410 can be separated from the outer container 420. In one embodiment, the first guiding projection 241 and the second guiding projection 242 may be formed to have an angle corresponding to the inclination angle of the ramp 412. That is, the first guiding projection 241 and the second guiding projection 242 may be formed to have a predetermined angle so that both can move along the ramp 412.

[0083] In addition, the housing portion 220 can be detachably coupled to the cover portion 300. The housing portion 220 may include one or more second fixing projections 251, 252 provided on its second outer side surface to be detachably coupled to the cover portion 300. The one or more second fixing projections 251, 252 may be coupled to the coupling groove 310, where the coupling groove 310 is provided at a position spaced a predetermined distance from the lower end of the cover portion 300 and is formed along the circumference of the cover portion 300 on the inner side of the cover portion 300.

[0084] In one embodiment, the first outer side surface is formed on the lower side of the second outer side surface and may be formed to be closer to the inside than the second outer side surface. According to one embodiment, the first outer side surface is inserted into the inside of the outer container 420, and the lower end of the second outer side surface may be placed inside the upper end of the outer peripheral surface of the outer container 420. Therefore, when the cover portion 300 is combined with the container body 400, the outer peripheral surface of the cover portion 300 and the outer peripheral surface of the outer container are combined to be consistent with each other, thereby forming a sense of unity and providing a smooth use feeling to the user.

[0085] In addition, as described above, the outer side of the connecting part 210 may be coupled to the inner side of the housing part 220. A third rotation prevention part for preventing rotation together with the housing part 220 may be formed on the outer side surface of the connecting part 210. The third rotation prevention part may have one or more rotation prevention protrusions formed in a protruding manner, or may include one or more rotation prevention grooves. At this time, a fourth rotation prevention part corresponding to the third rotation prevention part may be formed on the inner side surface of the housing part 220, and the fourth rotation prevention part may include one or more rotation prevention grooves or one or more rotation prevention protrusions. When the connecting part 210 and the housing part 220 are combined, the third rotation prevention part may be combined with the fourth rotation prevention part, thereby restricting the rotation of the connecting part 210 and the housing part 220. For example, the rotation prevention protrusion of the third rotation prevention part may be combined with the rotation prevention groove of the fourth rotation prevention part, thereby restricting the rotation of the connecting part 210 and the housing part 220. However, such a rotation prevention structure is only exemplary, and other structures capable of restricting the rotation of the connecting part 210 and the housing part 220 may also be applied.

[0086] In addition, the button part 230 may be coupled to the upper inner side of the housing part 220.

[0087] The button part 230 may move up and down by receiving an external force applied by a user, and transmit the external force to the valve stem 180. At this time, the valve stem 180 may compress the elastic member 170 by moving downward. At this time, the compression of the internal air caused by the compression of the elastic member 170 may be eliminated through the air passage 162. When the user releases the pressure, the elastic member 170 is restored by elastic force and may restore the valve stem 180 to its original position. At this time, the expansion of the internal air caused by the release of the compression of the elastic member 170 may be eliminated through the air passage 162.

[0088] The button part 230 may include a nozzle part inside, whereby the contents transferred from the valve stem 180 may be discharged to the outside. When the button part 230 descends, it is inserted into the inside of the housing part 220, and its descent may be restricted by the edge part of the connecting part 210.

[0089] The cover part 300 is coupled to the upper end of the container body 400, thereby preventing the button part 230 from being contaminated and preventing an accidental external force from being applied to the button part 230. In addition, the cover part 300 can be detachably coupled to the housing part 220. In one embodiment, a coupling groove 310 may be formed in the cover part 300, which is spaced apart from the lower end of the cover part 300 by a predetermined distance and is formed on the inner side surface of the cover part 300 along the circumference of the cover part 300. By combining the coupling groove 310 with one or more second fixing protrusions 251, 252, the cover part 300 can be detachably coupled to the housing part 220.

[0090] In one embodiment, when the lid part 300 and the container body 400 are combined with each other, the outer peripheral surface of the lid part 300 can be made to coincide with the outer peripheral surface of the outer container. As a result, an integrated feeling is formed, and a smooth use feeling can be provided to the user.

[0091] The container body 400 can provide a receiving space for receiving the contents. The container body 400 according to one embodiment may include an inner container 410 and an outer container 420. The inner container 410 is a receiving space for receiving the contents, and the outer container 420 can receive the inner container 410.

[0092] The contents accommodated in the inner container 410 can be discharged to the outside through the button part 230 and can be used by the user. Among them, the contents may be, for example, cosmetics (i.e., cosmetic materials) or medicines, but are not limited thereto, and may include various types or components of substances accommodated in the container body 400 and capable of being discharged through the button part 230. The dosage form of the contents can also be diversified, such as a liquid phase, a gel phase, a powder, etc. In addition, in the present invention, the container body 400 is shown as a bottle type, but this is only exemplary, and various types of container bodies 400 such as a tube or a tottle can also be applied.

[0093] In one embodiment, the mouth part of the inner container 410 can be combined inside the connection part 210. More specifically, a second engaging projection or a second engaging groove is formed in the mouth part of the inner container 410, and thus is combined with the first engaging groove or the first engaging projection formed on the lower inner surface of the connection part 210, so that the inner container 410 can be combined with the connection part 210. In one embodiment, the ring 130 is located at the upper end (for example, the mouth part) of the inner container 410, so that the mounting wings of the cylinder 110 can be placed at the upper end of the inner container 410. The ring 130 can also be omitted. In the case where the ring 130 is omitted, the mounting wings of the cylinder 110 can be directly placed at the upper end of the inner container 410.

[0094] In addition, in one embodiment, a second rotation prevention part for preventing rotation together with the connection part 210 may be formed on the outer side surface of the mouth part of the inner container 410. The second rotation prevention part may include one or more rotation prevention grooves or one or more rotation prevention protrusions. At this time, a first rotation prevention part corresponding to the second rotation prevention part may be formed on the inner side surface of the connection part 210, and the first rotation prevention part may have one or more rotation prevention protrusions formed to protrude, or may include one or more rotation prevention grooves. When the inner container 410 and the connection part 210 are combined, rotation of the inner container 410 and the connection part 210 may be restricted by combining the second rotation prevention part with the first rotation prevention part. For example, the rotation prevention protrusion of the first rotation prevention part may be combined with the rotation prevention groove of the second rotation prevention part to restrict rotation of the inner container 410 and the connection part 210. However, such a rotation prevention structure is merely exemplary, and other structures that can restrict rotation of the inner container 410 and the connection part 210 may be applied.

[0095] In one embodiment, the outer container 420 may include a guiding part formed on its inner side surface, and the guiding part may include a slope 412 formed from the upper part to the lower side. In one embodiment, the guiding part may further include: a sliding surface connected to and extending from the slope 412; and a support part formed at a predetermined distance above the sliding surface. At this time, the angle formed by the sliding surface and the upper end of the outer container 420 may be smaller than the inclination angle of the slope 412. In addition, the support part may be formed to have a predetermined length along the circumference of the inner side surface of the outer container 420. In addition, the support part may also be formed to be parallel to the sliding surface. According to one embodiment, the first guiding protrusion 241 and the second guiding protrusion 242 of the housing part 220 may be caught at the lower end of the support part, thereby preventing the inner container 410 from separating upward from the outer container 420. In addition, the outer container 420 may include a first fixing protrusion 411 formed at a predetermined distance from the end of the slope 412 of the guiding part. At this time, the first fixing protrusion 411 may be formed to extend upward from the sliding surface to the support part.

[0096] In one embodiment, when the inner container 410 is coupled to the pump assembly 100 through the housing portion 220 and rotates relative to the outer container 420, the first guiding protrusion 241 and the second guiding protrusion 242 can move along the slope 412, whereby the inner container 410 can be coupled to or separated from the outer container 420 in the vertical direction. At this time, when the inner container 410 rotates in the direction of being coupled to the outer container 420, the first guiding protrusion 241 passes over the first fixing protrusion 411, whereby the first fixing protrusion 411 is located between the first guiding protrusion 241 and the second guiding protrusion 242, so that the inner container 410 can be coupled to and fixed to the outer container 420. In addition, when the inner container 410 rotates in the direction of being separated from the outer container 420, the first guiding protrusion 241 passes over the first fixing protrusion 411 and moves along the guiding portion, so that the inner container 410 can be separated from the outer container 420.

[0097] In one embodiment, more than one guiding portion, supporting portion, and first fixing protrusion 411 may be provided, and the first guiding protrusion 241 and the second guiding protrusion 242 may be formed to correspond to the guiding portion, supporting portion, and first fixing protrusion 411.

[0098] According to one embodiment, when all the contents contained in the inner container 41 are used up, the user can separate the inner container 410 from the outer container 420, refill it with new contents, and use the refilled inner container 410. At this time, since only the inner container 410 can be replaced and used, and the outer container 420 can be reused, environmental pollution can be reduced, and the user can purchase only the new inner container 410 at a low price and use it.

[0099] According to Figures 1 to 4 the inner container of parts (a) and (b) is exemplary, and various configurations can be applied according to the embodiments applied to the present invention.

[0100] As described above, the best embodiments are disclosed in the drawings and the specification. Specific terms are used herein, but these are only for explaining the present invention and are not intended to limit the meaning or the scope of the present invention described in the claims. Therefore, those of ordinary skill in the art can understand that various modifications and other equivalent embodiments can be made therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical idea of the appended claims.

Claims

1. A container for contents, characterized in that: include: Pump components, and A container body, detachably coupled to the pump assembly; The pump assembly comprises: The cylinder is connected vertically and provides a passage for the contents to flow in and out. a lower cover, combined with the cylinder and supporting the lower end of the elastic member, a valve stem for conveying the contents and supporting the upper end of the elastic member, and The elastic member is located between the valve stem and the lower cover in a manner of surrounding the valve stem, and provides elastic force from the lower cover to the valve stem in response to an external force; An air passage is formed at an upper end of the lower cover, and the air passage is used to eliminate compression and expansion of air caused by compression and release of the elastic member.

2. The content container according to claim 1, characterized in that: The lower cover includes a first seating portion, the first seating portion is formed as a groove at the upper end toward the inner side along the circumference of the lower cover, and the lower end of the elastic member is seated on the first seating portion.

3. The content container according to claim 2, characterized in that: The air passage is formed as a groove deeper than the first seating portion of the lower cover.

4. The content container according to claim 2, characterized in that: A wing portion is formed at the upper end of the valve stem, and the wing portion protrudes outward along the circumference of the valve stem. The outer peripheral surface of the wing portion extends downward to form a second seating portion on the bottom surface of the wing portion for seating the upper end of the elastic member.

5. The content container according to claim 1, characterized in that: The elastic member is formed in a bellows type.

6. The content container according to claim 1, characterized in that: Also includes: a button portion, to which the pump assembly is actuated when an external force is applied so as to discharge the contents discharged from the pump assembly to the outside, and A head, comprising a housing portion, the housing portion being used to detachably combine the pump assembly with the container body; The pump assembly further comprises: a check valve disposed adjacent to the inlet of the cylinder and used to open and close the inlet of the cylinder, a sealing cover inserted into the interior of the cylinder and used to open and close the inflow portion of the piston rod, the sealing cover supporting the lower end of the elastic member, and The piston rod is inserted into the sealing cover, and is provided with an inlet portion, a discharge portion, and a connection passage for connecting the inlet portion and the discharge portion, and the piston rod changes the internal pressure of the cylinder by rising and falling based on the external force; At least a portion of the lower cover is inserted into the cylinder to suppress the rising of the sealing cover. The valve stem is coupled to the piston rod so as to be raised and lowered together with the piston rod, and transmits the contents discharged from the discharge portion of the piston rod to the head portion.

7. The content container according to claim 1, characterized in that: It also includes a housing portion, the housing portion being used to detachably combine the pump assembly with the container body, The container body comprises an inner container and an outer container, The outer container includes a guide portion, the guide portion includes a slope, and the slope is formed on the inner side surface of the outer container from the upper part to the lower side. The housing portion includes a first guide protrusion and a second guide protrusion, wherein the first guide protrusion and the second guide protrusion are formed on a first outer side surface of the housing portion in a manner that they can move along the slope. When the inner container is coupled to the pump assembly via the housing portion and rotates relative to the outer container, the first guide protrusion and the second guide protrusion move along the slope, and the inner container is coupled to or separated from the outer container in an up-and-down direction.

8. The content container according to claim 7, characterized in that: The guide portion includes a first fixing protrusion formed on the inner side surface of the outer container, wherein the first fixing protrusion is formed to be spaced apart from the end of the slope by a predetermined distance. When the inner container rotates in the direction of combining with the outer container, the first guide protrusion passes over the first fixing protrusion, so that the first fixing protrusion is located between the first guide protrusion and the second guide protrusion, so that the inner container and the outer container are combined and fixed.

9. The content container according to claim 8, characterized in that: The first guide protrusion and the second guide protrusion are formed to be spaced apart from each other by a distance corresponding to a length of the first fixing protrusion, and are formed to have an angle corresponding to an inclination angle of the slope.

10. The content container according to claim 8, characterized in that: The guide portion further comprises: a sliding surface connected to and extending from the ramp; and The support portion is formed to be spaced apart from the sliding surface upward by a predetermined distance.

11. The content container according to claim 10, characterized in that: The first fixing protrusion is formed to extend from the sliding surface to the upper side to the support portion.

12. The content container according to claim 7, characterized in that: Also includes: The cover has a coupling groove formed on an inner side surface of the cover at a predetermined distance from the lower end along the circumference of the cover, The housing portion further includes one or more second fixing protrusions, which are formed on a second outer side surface of the housing portion and are used to detachably combine the housing portion and the cover portion. The second fixing protrusion is inserted into the coupling groove so that the cover portion is coupled to the housing portion.

13. The content container according to claim 12, characterized in that: The first outer side surface is formed on a lower side of the second outer side surface and is formed closer to the inner side than the second outer side surface.

14. A container for contents, characterized in that: include: Pump components, The container body, including the inner container and the outer container, and A housing portion, used to detachably combine the container body and the pump assembly; The outer container includes a guide portion, the guide portion includes a slope, and the slope is formed on the inner side surface of the outer container from the upper part to the lower side. The housing portion includes a first guide protrusion and a second guide protrusion, wherein the first guide protrusion and the second guide protrusion are formed on a first outer side surface of the housing portion in a manner that they can move along the slope. When the inner container is coupled to the pump assembly via the housing portion and rotates relative to the outer container, the first guide protrusion and the second guide protrusion move along the slope, and the inner container is coupled to or separated from the outer container in an up-and-down direction.

15. The content container according to claim 14, characterized in that: The guide portion includes a first fixing protrusion, and the first fixing protrusion is formed to be separated from the end of the slope by a predetermined distance. When the inner container rotates in the direction of combining with the outer container, the first guide protrusion passes over the first fixing protrusion, so that the first fixing protrusion is located between the first guide protrusion and the second guide protrusion, so that the inner container and the outer container are combined and fixed.

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