Pump cap for dual-container

Abstract

The present invention relates to a pump cap for a dual-container, which can improve the convenience of replacement when refilling an inner container by being coupled to a general inner container. The technical gist of the present invention comprises: an outer container having an outer neck portion; an inner container which is accommodated through the outer neck portion of the outer container and has an inner neck portion; a pump cap which is detachably fitted on the inner neck portion of the inner container; a discharge pump which is coupled to the pump cap and has a piston housing to discharge liquid content stored in the inner container; and a container cap which fixes the discharge pump and the inner container to the outer container, wherein the pump cap comprises: a guide bushing which is detachably inserted into the inner circumference of the inner neck portion of the inner container and guides the coupling of the piston housing; a coupling sleeve which is spaced by a certain interval from the outer diameter of the guide bushing and detachably coupled to the outer circumference of the inner neck port ion of the inner container; a cap flange connecting the coupling sleeve to the upper end of the guide bushing; and a shoulder brim which extends along the circumference of the cap flange to be held on the upper end of the outer neck portion of the outer container.

Description

Pump cap for double container

[0001] The present invention relates to a refillable double-container pump cap, and more particularly, to a double-container pump cap that can improve the convenience of replacement when refilling the container by combining the pump cap with a general container.

[0002] As noted, the double container includes an inner container and an outer container, and the inner container is connected to a pump cap coupled with a shoulder by screwing.

[0003] As prior art related to such dual containers, Republic of Korea Utility Model Publication No. 20-2012-0004976 (publication date July 10, 2012) 'Pumping dispenser for liquid container' and Republic of Korea Patent Registration No. 10-2473311 (registration date November 29, 2022) 'Refill cosmetic container' are disclosed.

[0004] However, the above-described conventional technology had a problem in that the replacement process was inconvenient when refilling because the contents were separated and replaced by turning the pump cap connected to the container cap.

[0005] In addition, the above-described conventional technology had a problem that it could cause environmental pollution because a separate syringe or container lid had to be used to seal the refillable container and then disposed of.

[0006] In addition, the above-described conventional technology had the problem of making the process of removing the syringe inconvenient because the syringe sealed in the new contents device or pump cap had to be removed by grasping it with the fingertips or fingernails or by using a tool such as a knife.

[0007] The purpose of the present invention is to provide a pump cap for a dual container that can easily be combined with a pump cap to improve the convenience of replacement and can easily remove the sealing portion.

[0008] In order to achieve the above object, the present invention is a dual container including an outer container having an outer neck portion, an inner container accommodated inside through the outer neck portion of the outer container and having an inner neck portion, a pump cap detachably fitted into the inner neck portion of the inner container, a discharge pump having a piston housing coupled to the pump cap to discharge liquid contents stored in the inner container, and a container cap fixing the discharge pump and the inner container to the outer container, wherein the pump cap includes a guide bushing detachably fitted into the inner periphery of the inner neck portion of the inner container to guide coupling of the piston housing, a coupling sleeve detachably coupled to the outer periphery of the inner neck portion of the inner container at a predetermined interval from the outer diameter of the guide bushing, a cap flange connecting the coupling sleeve and the upper end of the guide bushing, and a shoulder brim extended along the periphery of the cap flange and mounted on the upper end of the outer neck portion of the outer container.

[0009] The above discharge pump may include a piston housing having a disk coupled to the inner circumference of the guide bushing to control the flow of liquid contents stored in the contents container, a pump piston coupled to the inner circumference of the piston housing so as to be able to rise and fall, a valve coupled to the pump piston to discharge liquid contents introduced into the disk, a push button having a nozzle to press the valve to discharge liquid contents, and a spring to restore the push button.

[0010] At this time, a licker may be provided on the bottom surface of the piston housing to release the sealing portion that seals the lower end of the guide bushing by poking it.

[0011] A space ring may be provided on the lower edge of the cap flange to maintain a joint gap with the inner circumference of the outer neck of the outer container.

[0012] According to the present invention implemented by the above-described solution, unlike the prior art, the contents container and the pump cap are not connected by screws but by pressing, so that the user can easily replace the contents container by refilling it with a new one when using it, and the existing commercialized contents container prototype can be changed to the press-fit method when refilling by simply attaching the pump cap, so that the manufacturing cost is reduced and compatibility is excellent, and when the discharge pump is connected to the pump cap, the freaker pierces the lower sealing part of the guide bushing to release the seal, so that the convenience of use can be improved, which is a very useful effect.

[0013] Fig. 1 is a perspective view of a double container assembly according to an embodiment of the present invention.

[0014] Figure 2 is an exploded perspective view of a double container according to an embodiment of the present invention.

[0015] Figure 3 is a cross-sectional view of a double container according to an embodiment of the present invention.

[0016] Figure 4 is an enlarged view of part 'A' of Figure 3.

[0017] Fig. 5 is a cross-sectional view showing the perforation state of a sealing portion according to an embodiment of the present invention.

[0018] Fig. 6 is a cross-sectional view of a double container according to another embodiment of the present invention.

[0019] The embodiments of the present invention may be modified in various ways, and the scope of the present invention should not be construed as being limited to the embodiments detailed below. These embodiments are provided to more fully explain the present invention to those of ordinary skill in the art.

[0020] Accordingly, the shapes of components depicted in the drawings may be exaggerated to emphasize a clearer description. It should be noted that identical components may be depicted with the same reference numerals in each drawing. Furthermore, detailed descriptions of functions and configurations of known technologies that may unnecessarily obscure the gist of the present invention may be omitted.

[0021] First, the portable piano configuration according to one embodiment of the present invention will be examined through FIGS. 1 to 6 as follows.

[0022] In this embodiment, the portable piano has an appearance similar to an accordion, and is configured to include a keyboard section (36) formed with a plurality of keys on one side of the main body so that right-hand playing can be performed, a bass section (3) formed with a plurality of buttons provided on the other side of the main body to implement chords through left-hand playing, a key detection section (3a, 36a) that detects the pressing motion of each of the bass section (3) and the keyboard section (36), a control section (50) to which a signal from the key detection section (3a, 36a) is transmitted, an electroacoustic conversion section (51) to convert a key signal into a sound sound under the control of the control section (50), a speaker (5) to externally generate the sound converted by the electroacoustic conversion section (51), and a power supply section (not shown) for supplying operating power.

[0023] Hereinafter, in order to fully understand the present invention, a preferred embodiment of the present invention will be described with reference to the attached drawings.

[0024] The embodiments of the present invention may be modified in various ways, and the scope of the present invention should not be construed as being limited to the embodiments detailed below. These embodiments are provided to more fully explain the present invention to those of ordinary skill in the art.

[0025] Accordingly, the shapes of components depicted in the drawings may be exaggerated to emphasize a clearer explanation, and it should be noted that in each drawing, identical components may be depicted with the same reference numerals.

[0026] In addition, detailed descriptions of known functions and configurations that may unnecessarily obscure the gist of the present invention may be omitted.

[0027]

[0028] A pump cap for a double container according to an embodiment of the present invention includes an outer container (100) having an outer neck portion (110), an inner container (200) accommodated inside through the outer neck portion (110) of the outer container (100) and having an inner neck portion (210), a pump cap (300) detachably fitted to the inner neck portion (210) of the inner container (200), a discharge pump (400) having a piston housing (410) coupled to the pump cap (300) to discharge liquid contents stored in the inner container (200), and a container cap (500) that fixes the discharge pump (400) and the inner container (200) to the outer container (100).

[0029]

[0030] The outer container (100) is formed in a cylindrical shape with an open top and an empty interior.

[0031] Referring to FIGS. 2 and 3, the open upper portion of the outer container (100) is provided with an outer portion (110) having a male screw on the outer periphery, and the female screw of the container cap (500) is screwed into it.

[0032]

[0033] The content (200) is accommodated inside the outer container (100) through the inner circumference of the outer wood part (110).

[0034] Referring to FIGS. 2 and 3, the open upper portion of the content device (200) is provided with an inner portion (210) having a screw on the outer periphery, and a base (220) is coupled to the lower surface.

[0035] And, at the inner bottom of the contents device (200), a container piston (230) is connected so as to be able to rise and fall, and rises to discharge the liquid contents by the operation of the discharge pump (400).

[0036]

[0037] The pump cap (300) is detachably fitted into the inner part (210) of the contents (200) to improve the convenience of replacement.

[0038] Referring to FIG. 4, the pump cap (300) includes a guide bushing (310) that is detachably fitted into the inner circumference of the inner neck (210) of the inner container (200) to guide the coupling of the piston housing (410), a coupling sleeve (320) that is detachably coupled to the outer circumference of the inner neck (210) of the inner container (200) at a predetermined interval from the outer diameter of the guide bushing (310), a cap flange (330) that connects the upper end of the coupling sleeve (320) and the guide bushing (310), and a shoulder brim (350) that extends along the circumference of the cap flange (330) and is mounted on the upper end of the outer neck (110) of the outer container (100).

[0039] The guide bushing (310) has the function of being detachably fitted into the inner circumference of the inner neck (210) to improve the convenience of replacement, and also has the function of guiding the coupling of the piston housing (410). The lower end of the guide bushing (310) is sealed with a sealing portion (311) and can be released by poking it with a freaker (413) of the piston housing (410) described later.

[0040] Here, the sealing portion (311) is made of a thin and soft material and is formed integrally with the guide bushing (310).

[0041] The coupling sleeve (320) is formed in a tubular shape with a diameter larger than that of the guide bushing (310) and is detachably fitted to the outer circumference of the inner neck portion (210) of the contents device (200). Optionally, the inner circumference of the coupling sleeve (320) may be provided with a female screw so as to be screw-fitted to the male screw of the inner neck portion (210).

[0042] The cap flange (330) is formed in a round and flat shape and connects the upper end of the coupling sleeve (320) and the guide bushing (310). A circular tube-shaped space ring (340) is connected to the lower edge of the cap flange (330) and is connected to the inner circumference of the outer neck (110) of the outer container (100) to maintain a gap.

[0043] The shoulder brim (350) is mounted on the upper part of the outer body (110) of the outer container (100), thereby improving the convenience of combining and replacing the pump cap (300).

[0044]

[0045] The discharge pump (400) has the function of discharging the liquid contents stored in the contents container (200).

[0046] Referring to FIG. 4, the discharge pump (400) includes a piston housing (410) having a disk (411) coupled to the inner circumference of a guide bushing (310) to control the flow of liquid contents stored in a container (200), a pump piston (420) coupled to the inner circumference of the piston housing (410) so as to be movable, a valve (430) coupled to the pump piston (420) to discharge liquid contents introduced into the disk (411), a push button (440) having a nozzle (441) to discharge liquid contents by pressing the valve (430), and a spring (450) to restore the push button (440).

[0047] A tube-shaped piercer (413) having a sharp end is provided on the bottom surface of the piston housing (410) to pierce the sealing portion (311) of the guide bushing (310) and release the seal. A housing cap (412) is coupled to the inner upper portion of the piston housing (410) to prevent leakage of liquid contents.

[0048] The operation and effect of the pump piston (420), valve (430), push button (440), and spring (450) can be replaced from the conventional technology described above, so they are omitted.

[0049]

[0050] The operation of the embodiment of the present invention configured as described above will be described in detail with reference to the attached drawings as follows.

[0051] First, FIG. 5 is a cross-sectional view showing the perforation state of the sealing portion (311) according to an embodiment of the present invention, (a) is a cross-sectional view showing a state in which the shoulder brim (350) of the pump cap (300) coupled to the inner neck (210) of the contents (200) is placed on the upper part of the outer neck (110) of the outer container (100), and (b) is a cross-sectional view showing a state in which the sealing is released by piercing the sealing portion (311) with a freaker (413) by coupling the piston housing (410) to the guide bushing (310) of the pump cap (300).

[0052] Next, when the pump cap (300) is fitted and combined into the inner part (210) of the contents container (200) and the contents container (200) is inserted into the inner part (110) of the outer container (100), the shoulder brim (350) of the pump cap (300) is placed on the upper part of the outer part (110) of the outer container (100) as shown in (a) of FIG. 5.

[0053] Next, when the piston housing (410) of the discharge pump (400) is coupled to the inner circumference of the guide bushing (310), the freaker (413) pierces the sealing portion (311) to release the seal, as shown in (b) of Fig. 5.

[0054] Therefore, according to the embodiment of the present invention described above, unlike the conventional technology described above, the contents (200) and the pump cap (300) are joined by pressing rather than screwing, so there is an advantage in that they can be easily replaced.

[0055] In addition, according to the embodiment of the present invention described above, when the discharge pump (400) is coupled to the pump cap (300), the freaker (413) pierces the sealing portion (311) to release the seal, so there is an advantage in that the convenience of use can be improved.

[0056]

[0057] Meanwhile, Fig. 6 is a cross-sectional view of a double container according to another embodiment of the present invention.

[0058] Referring to FIG. 6, the container cap (500) is formed in a shape that extends upwards to cover the outer periphery of the push button (440).

[0059]

[0060] The embodiments of the present invention described above are merely exemplary, and those skilled in the art to which the present invention pertains will readily appreciate that various modifications and equivalent other embodiments are possible.

[0061] Therefore, it can be well understood that the present invention is not limited to the forms mentioned in the detailed description above.

[0062] Accordingly, the true technical protection scope of the present invention should be determined by the technical idea of ​​the appended claims, and the present invention should be understood to include the technical idea defined by the appended claims and all modifications, equivalents, and substitutes within the scope thereof.

[0063] According to the present invention implemented with the above-described solution, there is an effect that can help in environmental conservation because a separate contents cap or syringe is not discharged.

Claims

1. A dual container including an outer container having an outer neck, an inner container accommodated inside through the outer neck of the outer container and having an inner neck, a pump cap detachably fitted into the inner neck of the inner container, a discharge pump having a piston housing coupled to the pump cap to discharge liquid contents stored in the inner container, and a container cap that fixes the discharge pump and the inner container to the outer container, A dual-container pump cap characterized in that the above pump cap includes a guide bushing that is detachably fitted into the inner circumference of the inner neck of the content container and guides the coupling of the piston housing, a coupling sleeve that is detachably coupled to the outer circumference of the inner neck of the content container at a predetermined interval from the outer diameter of the guide bushing, a cap flange that connects the coupling sleeve and the upper end of the guide bushing, and a shoulder brim that extends along the circumference of the cap flange and is placed on the upper end of the outer neck of the outer container.

2. In claim 1, The above discharge pump comprises a piston housing having a disk coupled to the inner circumference of the guide bushing to control the flow of liquid contents stored in the contents container, a pump piston coupled to the inner circumference of the piston housing to be able to rise and fall, a valve coupled to the pump piston to discharge liquid contents introduced into the disk, a push button having a nozzle to press the valve to discharge liquid contents, and a spring to restore the push button. A dual-container pump cap characterized in that a licker is provided on the lower surface of the piston housing to pierce and release the sealing portion that seals the lower end of the guide bushing.

3. A double-container pump cap according to claim 1, characterized in that a space ring is provided on the lower edge of the cap flange to maintain a joint gap with the inner circumference of the outer neck of the outer container.

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