Packaging system with built-in refill capsule

Abstract

The scheme discloses a built-in supplementary capsule packaging system, comprising a first container, a pumping mechanism, a supplementary capsule and a support, the pumping mechanism comprises a pump head and a suction pipe, the pump head detachably closes an opening of the first container, the suction pipe is fixed in the first container through the support, a containing space for arranging the supplementary capsule is left between the support and the pump head, the supplementary capsule comprises a second container, a first seal and a second seal, the second container is provided as a hollow columnar structure, a first opening closed by the first seal is arranged at a first end of the second container, and a second opening closed by the second seal is arranged at a second end of the second container; the pump head is provided with a first protrusion in the containing space and aligned with the first seal, the first protrusion is used for toppling off the first seal, and a back gas gap is formed between the first protrusion and the first opening; the support is provided with a second protrusion in the containing space and aligned with the second seal, the second protrusion is used for toppling off the second seal, and a liquid outlet gap is formed between the second protrusion and the second opening.

Description

TECHNICAL FIELD

[0001] The present scheme belongs to the technical field of packaging structure design, and specifically relates to a packaging system with an internally placed refill capsule. BACKGROUND

[0002] Trigger sprayers are usually shipped and sold as an integral product with the bottle and its internal solution. Because the sprayer is expensive and is intended to be reused, the bottle is combined with the cap as a separate product for shipping and selling as a refill, which is replaced when the original liquid is used up. With the rise of the environmental protection movement, the bottle refill product is being concentrated, forming a small size concentrated refill product, which undoubtedly reduces transportation costs and resource consumption, achieving the purpose of environmental protection. However, concentrated liquid is a high-concentration liquid product, and how to refill it into the bottle of the sprayer while ensuring safety is a problem. For this problem, we disclosed a solution in patent document CN115973590A: a straw is fixed in the first container by a support and has a containing space for placing the concentrated refill, and the straw does not need to be taken out when the pump head is removed, solving the problems of residual liquid pollution and installation convenience, and at the same time, the concentrated substance is released after the concentrated refill device enters the first container, solving the problems of high-concentration pollution and safety. However, after the concentrated device is installed and the pump head is fixed, the release of the concentrated liquid is slow, and manual shaking is needed to accelerate the release and mixing of the concentrated liquid. SUMMARY

[0003] The present scheme is an improvement and extension of the above-mentioned pumping packaging system, aiming to overcome the defect of slow release of the refill liquid and provide a packaging system with an internally placed refill capsule.

[0004] In order to solve the above technical problems, the following technical solutions are adopted:

[0005] The application discloses a packaging system with a built-in refill capsule, comprising a first container, a pumping mechanism, a refill capsule and a bracket, the pumping mechanism comprises a pump head and a suction pipe, the pump head detachably seals an opening of the first container, the suction pipe is fixed in the first container through the bracket, a fixed end of the suction pipe is fixed to the bracket and communicates with a liquid inlet of the pump head through the bracket, a free end of the suction pipe extends to a bottom of the first container, the bracket and the pump head are left with a containing space for arranging the refill capsule, the bracket is provided with a first through hole below the containing space; the refill capsule comprises a second container, a first seal and a second seal, the second container is provided as a hollow cylindrical structure, a first end of the second container is provided with a first opening communicating with a hollow cylindrical cavity, a second end of the second container is provided with a second opening communicating with the hollow cylindrical cavity, the first opening is sealed by the first seal, and the second opening is sealed by the second seal; the pump head is provided with a first protrusion in the containing space and aligned with the first seal, the first protrusion is used for unsealing the first seal, and a back gas gap is formed between the first protrusion and the first opening; the bracket is provided with a second protrusion in the containing space and aligned with the second seal, the second protrusion is used for unsealing the second seal, and a liquid outlet gap is formed between the second protrusion and the second opening.

[0006] The suction pipe is fixed in the first container through the bracket, when the pump head is detached, the suction pipe does not need to be taken out and will not be taken out, so that the use environment is prevented from being polluted by residual liquid of the suction pipe; when the pump head is installed, the long suction pipe does not need to be inserted into the first container from one side of the refill capsule, so that residual liquid attached to the outer surface of the suction pipe is prevented from polluting the surface of the refill capsule and from polluting a hand when the refill capsule is replaced next time, and the convenience of installation of the pump head is improved. Meanwhile, the bracket and the liquid inlet are left with the containing space for arranging the refill capsule, the refill capsule is arranged in place and then the supplement liquid is released, so that a hand is prevented from contacting the supplement liquid and even being hurt, and the replacement process is safer. During installation of the pump head, the first protrusion and the second protrusion simultaneously act on the refill capsule arranged in the containing space, the back gas gap is formed at the same time as the liquid outlet gap, and the release speed of the supplement liquid is accelerated, so that the supplement liquid can be released instantaneously in the process that the pump head seals the first container, and the packaging system does not need to be shaken. After the first protrusion unseals the first seal, the first protrusion is left in the first opening, so that the back gas gap can be much smaller than the liquid outlet gap, the release speed of the supplement liquid from the liquid outlet gap is accelerated, and the possibility of leakage of the supplement liquid from the back gas gap when the packaging system is accidentally tilted is reduced. Preferably, the width w1 of the back gas gap satisfies 0.5mm≤w1≤1mm, and the width w2 of the liquid outlet gap satisfies w2≥1mm.

[0007] The first seal can be configured as a plunger structure in interference fit with the first opening, or as a seal film welded to the first opening, or as other easily torn or easily punctured structures. After the plunger structure is pushed off, it will completely separate from the first opening, making the width of the backflow gap between the first protrusion and the first opening more stable, which is more conducive to backflow, while avoiding accidental leakage of the replenishment liquid. Preferably, the cross-sectional size of the plunger structure is larger than the width of the liquid outlet gap, so that the plunger structure after being pushed off does not squeeze into the liquid outlet gap, affecting the release speed of the replenishment liquid. Preferably, the length of the plunger structure is greater than the maximum cross-sectional dimension of the second container, which is conducive to the plunger structure after being pushed off to remain upright or inclined, reducing the obstruction to the replenishment liquid. Preferably, the plunger structure can be formed of lightweight materials, i.e. the density of the plunger structure is less than the density of the replenishment liquid, so that the plunger structure after being pushed off floats on the surface of the replenishment liquid, avoiding obstruction to the release of the replenishment liquid.

[0008] The second seal can be configured as an inner cover in interference fit with the inner wall of the second opening, or as a structure comprising an inner cover and an outer cover, the inner cover being in interference fit with the inner wall of the second opening, the outer cover being in interference fit with the outer wall of the second opening, the inner cover being easily disconnected from the outer cover, the outer cover being provided with a second through hole, the second protrusion passing through the second through hole to push off the inner cover, thereby forming a liquid outlet gap. In the second seal formed by the combination of the inner cover and the outer cover, the outer cover can protect the inner cover from being accidentally pushed off, only objects that can be inserted into the second through hole can push off the inner cover, improving the safety of storage and transportation, avoiding accidental leakage of the replenishment liquid (especially concentrated liquid), and causing safety risks and environmental pollution.

[0009] For the replenishment capsule comprising the outer cover of the second seal, the wrapping of the second opening by the outer cover makes the replenishment capsule relatively protruding at this position. In order to smoothly place the replenishment capsule into the accommodation space and maximize the capacity, the second end of the second container is configured as a tapered structure, i.e. the second end of the second container gradually narrows, thereby hiding the relatively protruding outer cover under the second container. On the premise that the replenishment capsule can be smoothly placed into the accommodation space, it is conducive to maximizing the capacity of the replenishment capsule, i.e. the replenishment capsule is adapted to the shape of the accommodation space. Whether the second seal contains the outer cover or not, the second end of the second container being configured as a tapered structure is conducive to guiding the flow of the replenishment liquid, reducing residual liquid, providing the utilization rate of the replenishment liquid, and for concentrated liquid, it is also conducive to achieving the required ratio of concentrated liquid and diluent.

[0010] In order to ensure that the pump head can be installed in place to make the packaging system in a sealed state, the pump head and the bracket can generate an axial force on the replenishment capsule to make it fit in place, form a liquid outlet gap and a backflow gap. The height of the second container can be equivalent to the height of the accommodation space, or a push block can be configured on the pump head, which is located in the accommodation space and used to push the second container to be configured in place. The sum of the height of the push block and the second container is equivalent to the height of the accommodation space.

[0011] To further increase the capacity of the refill capsule, the accommodating space can be enlarged. Specifically, the support can be configured to include a body and a connecting pipe, the body is configured as a basket structure having a basket opening, a basket wall and a basket bottom, the connecting pipe is arranged in the basket structure and next to the basket wall, the first end of the connecting pipe is connected to the liquid inlet of the pump head, and the second end of the connecting pipe is connected to the fixed end of the suction pipe; the basket wall is sealingly connected to the opening of the first container, the basket opening is detachably closed by the pump head, the pump head, the basket wall, the basket bottom and the pipe wall of the connecting pipe form an accommodating space, the second protrusion is arranged on the basket bottom, and the first through hole is arranged on the basket bottom.

[0012] The liquid inlet of the pump head is usually arranged centrally, even if it is arranged eccentrically, it is not necessarily next to the edge. In order to enable the support that maximizes the accommodating space to be connected to the liquid inlet of the pump head, the pump head is connected to the connecting pipe through an adapter, the adapter is provided with a first adapter pipe and a second adapter pipe that are in communication with each other, the first adapter pipe is connected to the liquid inlet of the pump head, and the second adapter pipe is connected to the first end of the connecting pipe. For the pump head provided with the adapter, the first protrusion can be arranged on the adapter so as to fix the adapter to the pump head.

[0013] Preferably, the pump head directly or indirectly closes the opening of the first container by a threaded cap. If the pump head directly closes the opening of the first container, the threads matched with the threaded cap are arranged on the opening of the first container; if the pump head indirectly closes the opening of the first container, the threads matched with the threaded cap are arranged on the part of the basket wall close to the basket opening. For the packaging system that needs to be repeatedly disassembled and assembled, detachably closing the opening of the first container by the threaded cap helps to prolong the service life. For the refill capsule that is opened by being squeezed, closing by the threaded cap can rely on the squeezing of the refill capsule during the tightening process of the threaded cap to facilitate the arrangement of the refill capsule, which helps to reduce the assembly difficulty and facilitates the replacement of the refill capsule by the user.

[0014] If the pump head indirectly closes the opening of the first container by the threaded cap, the threaded cap is directly matched with the basket wall, and there is no need to leave space between the threaded cap and the basket wall for arranging the opening of the first container, which is beneficial to increase the cross section of the accommodating space, so that the cross section of the refill capsule can be designed to be larger, and the capacity of the refill capsule can be larger to meet the dilution requirements of the mixed liquid. More preferably, the outer side of the basket wall is provided with a buckle, and the opening of the first container is provided with a flange with a notch, the buckle is inserted into the notch and then rotated to clasp the flange, so as to fix the body to the first container. At the same time, the buckle also plays a supporting role to prevent the support from moving towards the bottom of the first container due to the squeezing of the refill capsule.

[0015] Compared with the prior art, the first protrusion and the second protrusion simultaneously act on the supplementary capsule placed in the accommodating space, form the liquid outlet gap and the gas return gap at the same time, accelerate the release speed of the supplementary liquid, and the supplementary liquid can be released instantaneously in the process that the pump head seals the first container, and the packaging system does not need to be shaken. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings are only used for illustrative description, and cannot be understood as limitation to the scheme. In order to better illustrate the following embodiments, some components in the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings can be omitted.

[0017] Figure 1 is a structural schematic diagram of a packaging system before assembly of a first embodiment.

[0018] Figure 2 is a structural schematic diagram of the packaging system after assembly of the first embodiment.

[0019] Figure 3 is a sectional view of a supplementary capsule in the packaging system of the first embodiment.

[0020] Figure 4 is a top view of the supplementary capsule in the packaging system of the first embodiment.

[0021] Figure 5 is a sectional view of a support in the packaging system of the first embodiment.

[0022] Figure 6 is a top view of the support in the packaging system of the first embodiment.

[0023] Figure 7 is a sectional view of an adapter in the packaging system of the first embodiment.

[0024] Figure 8 is a structural schematic diagram of a first container in the packaging system of the first embodiment.

[0025] Figure 9 is an assembly schematic diagram of the support and the first container in the packaging system of the first embodiment.

[0026] Figure 10 is a structural schematic diagram of the packaging system after assembly of a second embodiment.

[0027] Explanation of reference signs: first container 100, flange 110, notch 111, pumping mechanism 200, pump head 210, liquid inlet 211, first protrusion 212, adapter 213, first adapter tube 2131, second adapter tube 2132, threaded cap 214, suction tube 220, bracket 300, body 310, first through hole 311, second protrusion 312, buckle 313, sealing protrusion 314, flange 315, adapter tube 320, refill capsule 400, second container 410, first opening 411, second opening 412, first seal 420, second seal 430, inner cap 431, outer cap 432, second through hole 4321. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present application, the present application will be further described in detail below with specific embodiments.

[0029] Figures 1-9 A first embodiment of a packaging system with a refill capsule is illustrated. Please refer to Figure 1 The pumping packaging system of the present embodiment comprises a first container 100, a pumping mechanism, a bracket 300 and a refill capsule 400.

[0030] The first container 100 is configured as a bottle for containing liquid, which can be a diluent or a mixture of a diluent and a concentrate (a type of refill). The first container 100 is provided with an opening for the liquid to enter or exit the first container 100. The pumping mechanism comprises a pump head 210 and a suction tube 220 for pumping the liquid in the first container 100 outwards. The pump head 210 can be a trigger-type manual sprayer or an electric sprayer, which detachably seals the opening of the first container 100. The pump head 210 is configured with a liquid inlet 211, which is located in the space enclosed by the pump head 210 and the first container 100. The suction tube 220 is fixed in the first container 100 by the bracket 300, with its fixed end fixed to the bracket 300 and communicating with the liquid inlet 211 of the pump head 210 through the bracket 300, and its free end extending to the bottom of the first container 100. The bracket 300 is fixed to the opening of the first container 100, leaving a space between the bracket 300 and the pump head 210 for configuring the refill capsule 400. The bracket 300 is provided with a first through hole 311, which is located below the space.

[0031] The refill capsule 400 is used to package and store a refill, especially a concentrate (a high-concentration refill), which can be detachably placed in the above-mentioned space and release the refill into the above-mentioned first container 100 through the above-mentioned first through hole 311. Please refer to Figures 3-4The supplementary capsule 400 includes a second container 410, a first seal 420, and a second seal 430. The second container 410 is a hollow cylindrical structure, with the hollow cylindrical cavity used to contain the supplementary liquid. The first end of the second container 410 has a first opening 411 communicating with its hollow cylindrical cavity, which is closed by the first seal 420; the second end of the second container 410 has a second opening 412 communicating with its hollow cylindrical cavity, which is closed by the second seal 430. A first protrusion 212 is disposed on the pump head 210, located within the aforementioned accommodating space and aligned with the first seal 420, for dislodging the first seal 420; after dislodging, a return gas gap is formed between the first protrusion 212 and the first opening 411, allowing gas to enter the supplementary capsule 400. The support 300 is provided with a second protrusion 312, which is located in the aforementioned accommodating space and aligned with the second seal 430, for dislodging the second seal 430; after dislodging, a liquid outlet gap is formed between the second protrusion 312 and the second opening 412, allowing the replenishing liquid in the replenishing capsule 400 to flow out.

[0032] like Figure 1 As shown, the straw 220 is fixed inside the first container 100 by the bracket 300. When disassembling the pump head 210, the straw 220 is neither needed nor pulled out, avoiding contamination of the environment by residual liquid in the straw 220. When installing the pump head 210, it is not necessary to insert the long straw 220 into the first container 100 from the side of the replenishing capsule 400, avoiding contamination of the replenishing capsule 400 surface by residual liquid adhering to the outer surface of the straw 220, thus preventing hand contamination during the next replacement of the replenishing capsule 400 and improving the convenience of pump head 210 installation. Simultaneously, a space is left between the bracket 300 and the inlet 211 to accommodate the replenishing capsule 400. The replenishing liquid is released only after the replenishing capsule 400 is properly positioned, preventing hand contact with the replenishing liquid and potential injury, making the replacement process safer. During the installation of the pump head 210, the first protrusion 212 and the second protrusion 312 simultaneously act on the replenishing capsule 400 placed in the accommodating space, such as... Figure 2 As shown, a return vent slit is formed simultaneously with the liquid outlet slit, accelerating the release rate of the replenishing liquid. The replenishing liquid can be released instantly during the process of the pump head 210 sealing the first container 100, without needing to shake the packaging system. After the first protrusion 212 disengages from the first seal 420, it remains in the first opening 411, allowing the return vent slit to be much smaller than the liquid outlet slit. This accelerates the release of the replenishing liquid from the liquid outlet slit and reduces the possibility of leakage from the return vent slit in case of accidental tipping. Preferably, the width w1 of the return vent slit satisfies: 0.5mm ≤ w1 ≤ 1mm, and the width w2 of the liquid outlet slit satisfies: w2 ≥ 1mm.

[0033] The first seal 420 is configured as a plunger structure which is in interference fit with the first opening 411 so as to seal the first opening 411. The plunger structure has a cross-sectional dimension d which is greater than the width w2 of the liquid outlet gap, a length l which is greater than the maximum cross-sectional dimension D of the inner cavity of the second container 410, and a density which is less than that of the replenishing liquid, so as to avoid the plunger structure from being pushed off and blocking the liquid outlet gap. In the embodiment, the plunger structure is cylindrical, and the cross-sectional dimension thereof can be described as a diameter. The majority of the side wall of the second container 410 is arc-shaped, and the maximum cross-sectional dimension thereof can also be described as a diameter. In addition, the first seal 420 can also be configured as a structure such as a seal film which is easy to tear or pierce. Correspondingly, the first protrusion can be configured as a sharp structure so as to pierce the first seal 420 and form the gas return gap. In comparison, the first opening 411 has a more stable width of the gas return gap formed by the first protrusion of the plunger structure which is pushed off, and is more conducive to gas return while avoiding accidental leakage of the replenishing liquid.

[0034] The second seal 430 is configured as a structure including an inner cover 431 and an outer cover 432. The inner cover 431 is in interference fit with the inner wall of the second opening 412 so as to seal the second opening 412. The outer cover 432 is in interference fit with the outer wall of the second opening 412, and the inner cover 431 is connected to the outer cover 432 in a breakable manner, so as to protect the inner cover 431 from being accidentally pushed off, improve the safety of storage and transportation, and avoid accidental leakage of the replenishing liquid (especially the concentrated liquid) to cause safety risks and environmental pollution. The outer cover 432 is provided with a second through hole 4321, and the second protrusion 312 pushes off the inner cover 431 through the second through hole 4321 so as to form the liquid outlet gap. In addition, the second seal 430 can also be configured as a structure including only the inner cover 431, and the same effect of sealing the second opening 412 and being pushed off by the second protrusion can be achieved.

[0035] The second end of the second container 410 is configured as a tapered structure, i.e., the second end of the second container 410 is gradually narrowed. On the one hand, this is conducive to guiding the flow of the replenishing liquid and reducing residual liquid, and provides the utilization rate of the replenishing liquid. For the concentrated liquid, this is also conducive to achieving the required ratio of the concentrated liquid and the diluting liquid. On the other hand, the narrowing of the second end of the second container 410 is conducive to hiding the above-mentioned outer cover 432, and on the premise that the replenishing capsule 400 can be smoothly placed in the accommodation space, it is conducive to maximizing the capacity of the replenishing capsule 400.

[0036] The supplementary capsule 400 is equivalent in height to the accommodation space, ensuring that the pump head 210 can be installed in place to make the packaging system in a sealed state, and can also generate axial force on the supplementary capsule 400 to make it fit in place and form the liquid outlet gap and the gas return gap. The supplementary capsule 400 is adapted in shape to the accommodation space, and the cross section of the supplementary capsule 400 is slightly smaller than the cross section of the accommodation space, so as to maximize the capacity of the supplementary capsule 400, and at the same time facilitate the gas in the first container 100 to be supplemented into the second container 410. In addition, the pump head 210 can be configured with a push block located in the accommodation space to push the second container 410 into place; accordingly, the height of the supplementary capsule 400 and the push block is equivalent to the height of the accommodation space.

[0037] Please refer to Figures 5-6 The bracket 300 is configured to include a body 310 and a docking pipe 320. The body 310 is configured as a basket structure having a basket opening, a basket wall and a basket bottom, and the docking pipe 320 is arranged in the basket structure, with its first end docking with the liquid inlet 211 of the pump head 210 and its second end docking with the fixed end of the suction pipe 220. The basket wall is sealingly connected to the opening of the first container 100, and the basket opening is detachably closed by the pump head 210. The pump head 210, the basket wall, the basket bottom and the pipe wall of the docking pipe 320 form the above-mentioned accommodation space, and the second protrusion 312 and the first through hole 311 are both arranged on the basket bottom. Any cross section of the basket wall is adapted in shape to the opening of the first container 100, which is beneficial to both expanding the accommodation space and positioning the body 310 circumferentially with the first container 100. The docking pipe 320 is arranged next to the basket wall, and the part of the basket wall next to the pipe wall of the docking pipe 320 is integrated, so that the volume of the accommodation space is maximized, which is beneficial to increasing the capacity of the supplementary capsule 400. The part of the basket wall next to the pipe wall of the docking pipe 320 can be left for inserting the suction pipe 220, so as to fix the suction pipe 220 and communicate the suction pipe 220 with the liquid inlet 211; the remaining part can be removed to form a gap 111, which is beneficial to reducing the material consumption of the bracket 300, and also beneficial to reducing the difficulty of mold design and demolding and saving manufacturing cost.

[0038] Please refer to Figure 1 , Figure 2 and Figure 7The pump head 210 connects to the connecting pipe 320 via an adapter 213. The adapter 213 is equipped with a first adapter pipe 2131 and a second adapter pipe 2132 that are interconnected. The first adapter pipe 2131 connects to the pump head 210 inlet 211, and the second adapter pipe 2132 connects to the first end of the connecting pipe 320, so that the pump head 210 inlet 211, which is not adjacent to the basket wall, can connect to the connecting pipe 320 that is adjacent to the basket wall. A first protrusion 212 is disposed on the adapter 213 so that the adapter 213 is fixed to the pump head 210. Furthermore, if the pump head 210 inlet 211 is directly aligned with the connecting pipe 320, the adapter 213 is not required, and the pump head 210 can directly connect to the connecting pipe 320.

[0039] Please see Figures 1-2 The pump head 210 indirectly seals the opening of the first container 100 via a threaded cap 214. The thread that mates with the threaded cap 214 is located on the part of the container wall near the opening. For this packaging system, which requires repeated disassembly and assembly, the removable closure of the container opening via the threaded cap 214 helps extend its service life. Furthermore, the replenishment capsule 400 requires the coordinated action of the pump head 210 and the support 300 to be opened. The threaded cap 214, when tightened, compresses the replenishment capsule 400, causing it to open, reducing assembly difficulty and facilitating capsule replacement. The threaded cap 214 directly mates with the container wall, eliminating the need for space between the cap 214 and the wall for the opening of the first container 100. This allows for a larger cross-section of the container, enabling the replenishment capsule 400 to be designed with a larger capacity to meet the dilution requirements of the mixture.

[0040] Please see Figures 8-9 The basket wall is not only fixedly connected to the opening of the first container 100 by the engagement of the buckle 313 and the flange 110 with a notch 111, but also sealed to the opening of the first container 100 by an interference fit. The outer side of the basket wall is provided with a buckle 313, which is positioned between the thread and the bottom of the basket. The opening of the first container 100 has a flange 110 with a notch 111, the position of which corresponds to the position of the buckle 313. The width of the notch 111 is greater than the width of the buckle 313, allowing the buckle 313 to be inserted into the notch 111 and abut against the end face of the opening of the first container 100. It can then be rotated to a position without the notch 111 to engage the flange 110, thereby fixing the body 310 to the first container 100. Simultaneously, the buckle 313 also serves a supporting function, preventing the support 300 from moving towards the bottom of the first container 100 due to pressure from the supplementary capsule 400. A sealing protrusion 314 is also provided on the outer side of the basket wall. The sealing protrusion 314 is located between the buckle 313 and the bottom of the basket, and is located next to the buckle 313. The sealing protrusion 314 is press-fitted with the inner wall of the opening of the first container 100, thereby achieving a sealed connection between the basket wall and the opening of the first container 100.

[0041] Figure 10 The second embodiment of the packaging system with built-in refill capsule is illustrated. The packaging system of the second embodiment is basically the same as the first embodiment, and also includes the first container 100, the pumping mechanism including the pump head 210 and the suction tube 220, and the refill capsule 400. The main difference is that the pump head 210 directly seals the opening of the first container 100 by the threaded cap 214, and the thread cooperating with the threaded cap 214 is arranged at the opening of the first container 100. For the pump head 210 with a larger inner diameter of the threaded cap 214, the opening of the first container 100 with a larger inner diameter is also matched, so that even if the bracket 300 is added, the capacity of the refill capsule 400 will not be too small, and the concentration of the mixed liquid can meet the dilution requirements.

[0042] The outer side of the basket wall is provided with a flange 315 flush with the basket opening instead of the buckle 313, and the outer diameter of the flange 315 is greater than the inner diameter of the opening of the first container 100 and less than the inner diameter of the threaded cap 214, so as to abut against the end face of the opening of the first container 100 and be clamped between the threaded cap 214 and the opening of the first container 100. The flange 315 can play a positioning role to confirm that the bracket 300 is connected in place between the opening of the first container 100, and also play a supporting role to avoid the bracket 300 from moving to the bottom of the first container 100 under the extrusion of the refill capsule 400. The sealing protrusion 314 is arranged next to the flange 315 to be in interference fit with the inner wall of the opening of the first container 100, so as to realize the sealed connection between the body 310 and the opening of the first container 100.

[0043] Obviously, the above embodiments of the present scheme are only examples for clearly illustrating the present scheme, and are not a limitation on the specific embodiments of the present scheme. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description, and here it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the claims of the present scheme should be included in the protection scope of the claims of the present scheme.

Claims

1. A packaging system with a built-in refill capsule, the packaging system comprising a first container, a pumping mechanism, a refill capsule and a holder, the pumping mechanism comprising a pump head and a suction pipe, the pump head directly or indirectly closing an opening of the first container by a threaded cap, the suction pipe being fixed in the first container by the holder, a fixed end of the suction pipe being fixed to the holder and communicating with a liquid inlet of the pump head through the holder, a free end of the suction pipe extending to a bottom of the first container, a space for arranging the refill capsule being left between the holder and the pump head, the holder being provided with a first through hole below the space; characterized in that, the refill capsule comprises a second container, a first seal and a second seal, the second container being provided as a hollow cylindrical structure, a first end of the second container being provided with a first opening communicating with a hollow cylindrical cavity of the second container, a second end of the second container being provided with a second opening communicating with the hollow cylindrical cavity of the second container, the first opening being closed by the first seal, the second opening being closed by the second seal; the first seal is provided as a plunger structure, the plunger structure being in interference fit with the first opening; the pump head is provided with a first protrusion in the space and aligned with the first seal, the first protrusion being used to unseat the first seal and being left in the first opening after unseating the first seal, a back gas gap being formed between the first protrusion and the first opening, a width w1 of the back gas gap satisfying: 0.5mm≤w1≤1mm; the holder is provided with a second protrusion in the space and aligned with the second seal, the second protrusion being used to unseat the second seal, a liquid outlet gap being formed between the second protrusion and the second opening; the first protrusion and the second protrusion simultaneously act on the refill capsule arranged in the space, the liquid outlet gap being formed at the same time as the back gas gap.

2. The packaging system with a built-in refill capsule according to claim 1, characterized in that, a cross-sectional dimension of the plunger structure is greater than a width of the liquid outlet gap; or a length of the plunger structure is greater than a maximum cross-sectional dimension of the second container.

3. The packaging system with a built-in refill capsule according to claim 1, characterized in that, the second seal comprises an inner cap and an outer cap, the inner cap being in interference fit with an inner wall of the second opening, the outer cap being in interference fit with an outer wall of the second opening, the inner cap and the outer cap being connected in a breakable manner, the outer cap being provided with a second through hole, the second protrusion unseating the inner cap through the second through hole.

4. The packaging system with a built-in refill capsule according to claim 1, characterized in that, the second end of the second container is provided as a closed end structure.

5. The packaging system with a built-in refill capsule according to claim 1, characterized in that, a height of the second container is comparable to a height of the space; or the pump head is provided with a push block in the space, the push block being used to push the second container into position.

6. The packaging system with a built-in refill capsule according to any one of claims 1-5, characterized in that, The bracket comprises a body and a connecting pipe, the body is provided as a basket structure with a basket opening, a basket wall and a basket bottom, the connecting pipe is arranged in the basket structure and close to the basket wall, a first end of the connecting pipe connects with a liquid inlet of the pump head, and a second end of the connecting pipe connects with a fixed end of the suction pipe; the basket wall is sealingly connected with an opening of the first container, the basket opening is detachably closed by the pump head, the pump head, the basket wall, the basket bottom and a pipe wall of the connecting pipe form the containing space, the second protrusion is arranged on the basket bottom, and the first through hole is arranged on the basket bottom.

7. The package system of claim 6, wherein, The pump head connects with the connecting pipe through an adapter, the adapter is provided with a first adapter pipe and a second adapter pipe which are in communication with each other, the first adapter pipe connects with the liquid inlet of the pump head, and the second adapter pipe connects with the first end of the connecting pipe.

8. The package system of claim 7, wherein, The first protrusion is arranged on the adapter.

9. The package system of claim 6, wherein, The pump head indirectly closes the opening of the first container through a threaded cap, the threaded cap is connected with the basket wall, an outer side of the basket wall is provided with a buckle, the opening of the first container is provided with a flange with a notch, and the buckle is inserted into the notch and then rotates to be clamped with the flange.

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