A replaceable inner bag bottle

Abstract

The utility model discloses a replaceable inner bag bottle, including bottle body, bottle body detachable lid set up has the bottle lid, be provided with the pump head on the bottle lid, the pump head outer periphery of bottle lid bottom is provided with the connecting ring, and the connecting ring is detachably connected with the connecting sleeve, and the bottle body is provided with the inner bag, and the neck of inner bag is arranged in the connecting sleeve, and the open side of inner bag is provided with the flanging, and the flanging sealedly is arranged between the bottle lid and the connecting sleeve. This replaceable inner bag bottle can realize the simple, quick, low -cost replacement of inner bag, and ensure the overall sealing property and functional integrity of the package after replacement, thereby in the promotion use economy while, satisfy the dual demand of consumer to environmental protection and convenience.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging technology, and in particular to a replaceable inner bag bottle. Background Technology

[0002] With the improvement of living standards, cosmetics have become necessities in people's daily lives. Consumers' requirements for cosmetic packaging are no longer limited to basic storage and protection functions, but also include user experience, functionality, and environmental friendliness. Among these, how to fully pump out cosmetics from bottles and jars to reduce residue and waste, and how to reduce the long-term use cost of packaging are key issues that the industry continues to focus on and strive to solve.

[0003] Currently, most mainstream cosmetic packaging bottles on the market, especially those for highly viscous products such as lotions and creams, widely adopt pump dispensing. To overcome the problem of excessive cosmetic residue on the bottom and walls of traditional rigid bottles due to their inability to deform, the industry has developed packaging bottles with flexible inner bags. These bottles typically employ a structure of "airtight inner bag + rigid outer shell." When the contents are pumped out, the inner bag contracts synchronously with the reduction of contents, effectively isolating air and preventing oxidation and spoilage of the cosmetics. Simultaneously, the physical squeezing action significantly improves the pumping rate and reduces residue waste.

[0004] Although the aforementioned packaging bottles with inner bags have made significant progress in reducing residues, their structural design still has obvious defects and shortcomings: 1. High Usage Costs Due to Whole-Pack Disposal: Most existing inner pouch packaging bottles are one-piece or non-removable structures. Their rigid outer shells (usually made of glass or high-quality plastic) and pump heads are elaborately designed, aesthetically pleasing, and expensive to manufacture. When the cosmetics inside are used up, consumers can only discard the entire packaging bottle, including the outer shell, pump head, and inner pouch. For consumers who wish to reuse the elegant packaging or refill their cosmetics multiple times, this "disposable" usage model results in significant waste, making the cost per use high.

[0005] 2. Inconvenient Replacement and Complex Structure: The few replaceable packaging designs on the market often have complex structures and cumbersome replacement operations. Users may need to disassemble multiple parts, or even require specific tools, to replace the inner bag, resulting in a poor user experience. In addition, these designs often pose risks in terms of the reliability of the seal after replacement and the stability of the connection with the pump head, which may lead to leakage of contents or poor pumping.

[0006] Therefore, there is an urgent need in this field for a novel cosmetic packaging bottle solution. It should retain the advantage of flexible inner bags reducing residue while fundamentally solving problems in existing technologies such as non-reusable bottles, high replacement costs, and inconvenient operation. Utility Model Content

[0007] This utility model addresses the shortcomings of existing technologies by providing a replaceable inner bag bottle. This replaceable inner bag bottle enables simple, quick, and low-cost replacement of the inner bag, while ensuring the overall sealing and functional integrity of the packaging after replacement. Thus, it improves the economic efficiency of use while meeting consumers' dual needs for environmental protection and convenience.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a replaceable inner bag bottle, comprising a bottle body, a bottle cap detachably fitted onto the bottle body, a pump head provided on the bottle cap, a connecting ring provided on the outer periphery of the pump head at the bottom of the bottle cap, a connecting sleeve detachably connected to the connecting ring, an inner bag provided inside the bottle body, the neck of the inner bag passing through the connecting sleeve, a flange provided on the opening side of the inner bag, and the flange sealingly clamped between the bottle cap and the connecting sleeve. The contents of this replaceable inner bag bottle are contained within the inner bag, which is assembled with the connecting sleeve as a single unit. After the contents of the inner bag are used up, the inner bag can be removed by uncapping the bottle cap and disconnecting the connecting sleeve from the connecting ring. Then, a new inner bag containing the contents and the connecting sleeve can be assembled together onto the connecting ring for continued use. The folded edge after assembly provides a sealing effect, ensuring airtightness. This replaceable inner bag bottle enables simple, quick, and low-cost replacement of the inner bag, while ensuring the overall airtightness and functional integrity of the packaging after replacement. This improves the economic efficiency of use while meeting consumers' dual needs for environmental protection and convenience.

[0009] In the above technical solution, preferably, the top of the connecting sleeve includes several elastic pieces distributed around the circumference and with gaps. This structure allows the elastic pieces to open during assembly of the inner bag and the connecting sleeve, facilitating the insertion of the neck and flange of the inner bag into the elastic pieces, thus simplifying assembly.

[0010] In the above technical solution, preferably, a first external thread is provided on the outer periphery of several elastic sheets, and a first internal thread is provided on the inner wall of the connecting ring, wherein the first external thread and the first internal thread are detachably connected. This structure facilitates the assembly and disassembly of the connecting sleeve and the connecting ring through threaded engagement.

[0011] In the above technical solution, preferably, the bottle body and the bottle cap are threaded together. This structure facilitates the assembly and disassembly of the bottle body and the bottle cap.

[0012] In the above technical solution, preferably, the inner bag includes a pouch, a support, and a neck connected in sequence, with the thickness of the pouch, support, and neck gradually increasing. The bottom height of the support is lower than the suction port of the pump head. This structure allows the neck and support to have high support strength for assembly within the connecting sleeve, and the bottom height of the support is lower than the suction port of the pump head to prevent accidental blockage of the pump head's suction port due to inner bag deformation.

[0013] In the above technical solution, preferably, the bottom of the connecting sleeve fits snugly against the outer wall of the support portion. This structure allows the connecting sleeve to support the support portion.

[0014] Compared with the prior art, this utility model has the following advantages: The contents of this replaceable inner bag bottle are filled in the inner bag, and the inner bag and the connecting sleeve are assembled as one piece. After the contents of the inner bag are used up, the inner bag can be removed by removing the bottle cap and disconnecting the connecting sleeve connected to the connecting ring. Then, a new inner bag filled with contents and the connecting sleeve are assembled together on the connecting ring for continued use. After assembly, the flange provides a sealing effect to ensure airtightness. This replaceable inner bag bottle enables simple, quick, and low-cost replacement of the inner bag, while ensuring the overall airtightness and functional integrity of the packaging after replacement. Thus, it improves the economic efficiency of use while meeting consumers' dual needs for environmental protection and convenience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is an exploded structural diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the bottle cap structure in an embodiment of the present invention. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1 to 3A replaceable inner bag bottle includes a bottle body 1, a bottle cap 2 detachably attached to the bottle body 1, a pump head 3 attached to the bottle cap 2, a connecting ring 4 attached to the outer periphery of the pump head 3 at the bottom of the bottle cap 2, a connecting sleeve 5 detachably connected to the connecting ring 4, an inner bag 6 inside the bottle body 1, the neck 7 of the inner bag 6 passing through the connecting sleeve 5, and a flange 8 attached to the opening side of the inner bag 6, the flange 8 being sealed and clamped between the bottle cap 2 and the connecting sleeve 5. The contents of this replaceable inner bag bottle are contained in the inner bag 6, which is assembled with the connecting sleeve 5. After the contents of the inner bag 6 are used up, the inner bag 6 can be removed by removing the bottle cap 2 and disconnecting the connecting sleeve 5 connected to the connecting ring 4. Then, a new inner bag 6 containing new contents and the connecting sleeve 5 can be assembled together onto the connecting ring 4 for continued use. After assembly, the flange 8 acts as a seal to ensure airtightness. This replaceable inner bag bottle enables simple, quick, and low-cost replacement of the inner bag 6, while ensuring the overall airtightness and functional integrity of the packaging after replacement. This improves the economic efficiency of use while meeting consumers' dual needs for environmental protection and convenience.

[0019] In the above technical solution, preferably, the top of the connecting sleeve 5 includes several elastic pieces 9 distributed around the circumference and with gaps. This structure allows the elastic pieces 9 to open when the inner bag 6 is assembled with the connecting sleeve 5, facilitating the insertion of the neck 7 and the flange 8 of the inner bag 6 into the elastic pieces 9, thereby simplifying assembly.

[0020] In the above technical solution, preferably, a plurality of elastic sheets 9 are provided with a first external thread 10 on their outer periphery, and the connecting ring 4 is provided with a first internal thread 11 on its inner wall. The first external thread 10 and the first internal thread 11 are detachably connected. This structure facilitates the assembly and disassembly of the connecting sleeve 5 and the connecting ring 4 through threaded engagement.

[0021] In the above technical solution, preferably, the bottle body 1 and the bottle cap 2 are threaded together. This structure facilitates the assembly and disassembly of the bottle body 1 and the bottle cap 2.

[0022] In the above technical solution, preferably, the inner bag 6 includes a bladder portion 12, a support portion 13, and a neck portion 7 connected in sequence. The thickness of the bladder portion 12, the support portion 13, and the neck portion 7 gradually increases, and the bottom height of the support portion 13 is lower than the suction port of the pump head 3. This structure allows the neck portion 7 and the support portion 13 to have high support strength for assembly within the connecting sleeve 5, and the bottom height of the support portion 13 is lower than the suction port of the pump head 3 to prevent the inner bag 6 from deforming and accidentally blocking the suction port of the pump head 3.

[0023] In the above technical solution, preferably, the bottom of the connecting sleeve 5 fits snugly against the outer wall of the support portion 13. This structure enables the connecting sleeve 5 to support the support portion 13.

[0024] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A replaceable inner bag bottle, comprising a bottle body (1), wherein a bottle cap (2) is detachably fitted onto the bottle body (1), and a pump head (3) is provided on the bottle cap (2), characterized in that: A connecting ring (4) is provided on the outer periphery of the pump head (3) at the bottom of the bottle cap (2). A connecting sleeve (5) is detachably connected to the connecting ring (4). An inner bag (6) is provided inside the bottle body (1). The neck (7) of the inner bag (6) passes through the connecting sleeve (5). A flange (8) is provided on the opening side of the inner bag (6). The flange (8) is sealed and clamped between the bottle cap (2) and the connecting sleeve (5).

2. The replaceable inner bag bottle as described in claim 1, characterized in that: The top of the connecting sleeve (5) includes several elastic pieces (9) distributed around the circumference and having gaps.

3. A replaceable inner bag bottle as described in claim 2, characterized in that: The outer periphery of several elastic sheets (9) is provided with a first external thread (10), and the inner wall of the connecting ring (4) is provided with a first internal thread (11). The first external thread (10) and the first internal thread (11) are detachably connected.

4. A replaceable inner bag bottle as described in claim 1, characterized in that: The bottle body (1) is threadedly connected to the bottle cap (2).

5. A replaceable inner bag bottle as described in claim 1, characterized in that: The inner bag (6) includes a bladder (12), a support (13) and a neck (7) connected in sequence. The thickness of the bladder (12), the support (13) and the neck (7) gradually increases. The bottom height of the support (13) is lower than the suction port of the pump head (3).

6. A replaceable inner bag bottle as described in claim 5, characterized in that: The bottom of the connecting sleeve (5) fits and matches the outer wall of the support part (13).

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