Cream bottle with improved liner replacement structure
By designing a replaceable inner liner structure and utilizing the cooperation of the shoulder sleeve and the limiting block, the inner liner can be easily disassembled and assembled, solving the problem of the inability to replace the inner liner of cosmetic packaging bottles, improving the efficiency of packaging bottle use and reducing costs.
Patent Information
- Application Number
- CN202522442825.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-18
AI Technical Summary
The inner liner of existing cosmetic packaging bottles is fixedly connected to the bottle body and cannot be replaced, which means that cosmetic packaging bottles can only be used once, resulting in a waste of resources.
A replacement inner liner structure was designed. The inner liner can be easily disassembled and assembled by the cooperation of the shoulder sleeve, the limiting block and the limiting groove. The inner liner and the shoulder sleeve are connected by buckles, and the bottle body and the cap body are connected by threads. The inner cap and the outer cap are made of different materials to save costs.
It enables convenient replacement of the inner liner, reduces resource waste, and improves the efficiency and cost-effectiveness of cosmetic packaging bottles.
Smart Images

Figure CN224924722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging technology, specifically to a cream bottle with an improved inner liner replacement structure. Background Technology
[0002] As people's living standards continue to improve, their demands for quality of life are also increasing, and they are paying more and more attention to skincare. Cosmetics are currently very popular, promoting the vigorous development of the cosmetics industry and related sectors. Cosmetic packaging bottles are essential for the cosmetics industry, as most cosmetics are packaged, stored, and transported through these bottles. If cosmetic packaging bottles were only single-layered, using high-safety materials would increase production costs. Conversely, using ordinary materials to reduce costs would compromise packaging quality. Therefore, current cosmetic packaging bottles are typically designed with two layers: a bottle body and an inner liner. The bottle body is made of ordinary materials, while the inner liner is made of high-safety materials. If the inner liner is fixedly connected to the bottle body, it cannot be replaced or cleaned, rendering the cosmetic packaging bottle a single-use item and resulting in waste.
[0003] To address this issue, Chinese utility model patent application CN202221307588.1 (publication number CN217533867U) discloses a "flip-top jar for skincare products," comprising a bottle body with an open-top accommodating cavity; an inner liner accommodated within the cavity; a groove on one of the inner peripheral wall of the bottle body and the outer peripheral wall of the inner liner, and a raised rib on the other. The raised rib can be engaged in the groove, and the longitudinal section of the groove is an arc shape arched away from the raised rib; correspondingly, the longitudinal section of the raised rib is also arc-shaped. Thus, during the installation of the inner liner into the bottle body, a slight outward expansion of the bottle body's sidewall allows the raised rib to engage in the groove, achieving assembly of the inner liner and bottle body; when disassembling the inner liner, pushing the inner liner upward causes a slight outward expansion of the bottle body's sidewall, allowing the raised rib to disengage from the groove, thus disassembling the inner liner. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an improved cream bottle with a convenient inner liner replacement structure, in light of the current state of the technology.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a cream bottle with an improved inner liner replacement structure, comprising...
[0006] The bottle body has a receiving cavity with an open top;
[0007] The inner liner has an open top and can be detachably placed in the receiving cavity;
[0008] The inner liner is characterized in that its top is located above the top of the bottle body, and a shoulder sleeve is connected to the part of the inner liner located above the bottle body. The shoulder sleeve is fitted onto the top of the bottle body and has a limiting block. A limiting groove is provided on the outer peripheral wall of the bottle body. The limiting groove includes a vertically extending vertical section and a horizontally extending horizontal section. The upper end of the vertical section penetrates the top wall surface of the bottle body, and the lower ends of the horizontal and vertical sections are connected. The limiting block can slide from the vertical section to the horizontal section. The limiting block can slide along the horizontal section, but the limiting block is vertically limited relative to the horizontal section.
[0009] In order to prevent the limiting block from coming out of the transverse segment when it is in the transverse segment without the action of external force, a protrusion is provided in the transverse segment near its closed end. The limiting block can be limited between the protrusion and the closed segment of the transverse segment. The limiting block can pass over the protrusion under the action of external force.
[0010] To facilitate the connection between the inner liner and the shoulder sleeve, the top of the inner liner is bent outwards laterally to form a boss, and the outer end of the boss is bent downwards to form a flange. The boss, flange, and outer wall of the inner liner together form a groove. The top of the shoulder sleeve is fitted into the groove, and the top of the shoulder sleeve is provided with a first fastener. The flange is provided with a second fastener. The first fastener and the second fastener can be detachably fastened together in the vertical direction. Because the inner liner and the shoulder sleeve are detachably connected through the first and second fasteners, when replacing the inner liner, both the inner liner and the shoulder sleeve can be replaced simultaneously, or only the inner liner can be replaced.
[0011] In the above solution, the top opening of the bottle is detachably covered with a cap.
[0012] Preferably, the cap includes an inner cap and an outer cap fitted onto the inner cap, wherein the inner cap is detachably fitted onto the top opening of the bottle. This allows the inner cap to be made of plastic and the outer cap to be made of metal, ensuring the strength of the cap while saving costs.
[0013] To facilitate the detachable connection between the cap and the bottle body, the inner cap and the bottle body are threaded together.
[0014] In order to position the inner cover and the outer cover relative to each other, the outer peripheral wall of the inner cover is provided with a first vertically extending rib and a second horizontally extending rib, and the inner peripheral wall of the outer cover is provided with a first groove for the first rib to be embedded in and a second groove for the second rib to be embedded in. The first groove extends through the bottom edge of the outer cover.
[0015] In the above solution, the top opening of the inner liner is detachably covered with a cover plate.
[0016] To facilitate pulling the cover to open the inner liner, the upper surface of the cover is provided with a sheet-like body for applying force.
[0017] During transportation, in order to prevent the cover plate and the cover body from colliding and causing wear, the top of the cover plate is provided with a detachable flexible sheet. The flexible sheet acts as a buffer and can be torn off after the cream bottle is used.
[0018] Compared with the prior art, the advantages of this utility model are as follows: This utility model is designed with a shoulder sleeve that is connected to the inner liner, and the shoulder sleeve and the bottle body are detachably connected by a limiting block and a limiting groove. When the inner liner needs to be replaced, the shoulder sleeve is rotated so that the limiting block is located at the intersection of the horizontal and vertical sections. Then, the inner liner is pulled upward so that the limiting block moves along the vertical section until it comes off, thus achieving the removal of the inner liner and allowing the replacement of the inner liner containing new emulsion. When assembly is required, the inner liner is placed into the bottle body. During this process, the limiting block slides along the vertical section. When it slides to the intersection of the horizontal and vertical sections, the inner liner is rotated so that the limiting block is vertically positioned in the horizontal section.
[0019] As can be seen from the above, this application can be easily disassembled and assembled simply by rotating the inner liner. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0021] Figure 2 for Figure 1 A cross-sectional view with the outer cover removed;
[0022] Figure 3 for Figure 2 A schematic diagram of the decomposition process;
[0023] Figure 4 for Figure 3 A schematic diagram of the inner cover;
[0024] Figure 5 for Figure 3 A schematic diagram of the outer cover;
[0025] Figure 6 for Figure 3 A sectional view of the shoulder strap;
[0026] Figure 7 for Figure 3 A schematic diagram of the bottle's structure;
[0027] Figure 8 for Figure 3 A cross-sectional view of the inner liner. Detailed Implementation
[0028] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0029] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.
[0031] like Figures 1-8 As shown, the cream bottle with improved inner liner replacement structure in this preferred embodiment includes a bottle body 1, an inner liner 2, a cap 3, and a shoulder sleeve 4.
[0032] like Figure 2 , 6 As shown in Figure 7, the bottle body 1 has a top-opening receiving cavity 10, and the inner liner 2 has a top-opening structure that can be detachably placed in the receiving cavity 10. The top of the inner liner 2 is located above the top of the bottle body 1. A shoulder sleeve 4 is connected to the part of the inner liner 2 located above the bottle body 1. The shoulder sleeve 4 is fitted onto the top of the bottle body 1 and has a limiting block 41. A limiting groove 11 is provided on the outer peripheral wall of the bottle body 1. The limiting groove 11 includes a vertically extending vertical section 111 and a horizontally extending horizontal section 112. The upper end of the vertical section 111 penetrates the top wall surface of the bottle body 1, and the lower end of the horizontal section 112 is connected to the vertical section 111. The limiting block 41 can slide from the vertical section 111 into the horizontal section 112. The limiting block 41 can slide along the horizontal section 112, but the limiting block 41 is vertically limited relative to the horizontal section 112.
[0033] In order to prevent the limiting block 41 from coming out of the transverse segment 112 when it is located in the transverse segment 112 without the action of external force, a protrusion 113 is provided in the transverse segment 112 near its closed end. The limiting block 41 can be limited between the protrusion 113 and the closed end of the transverse segment 112. The limiting block 41 can pass over the protrusion 113 under the action of external force.
[0034] When the inner liner 2 needs to be replaced, remove the cap 3, rotate the shoulder sleeve 4 so that the limiting block 41 is located at the intersection of the horizontal section 112 and the vertical section 111, and then lift the inner liner 2 upward so that the limiting block 41 moves along the vertical section 111 until it comes off, thus removing the inner liner 2 and replacing it with the inner liner 2 containing new emulsion; when it needs to be assembled, place the inner liner 2 into the bottle 1. During this process, the limiting block 41 slides along the vertical section 111. When it slides to the intersection of the horizontal section 112 and the vertical section 111, rotate the inner liner 2 so that the limiting block 41 is vertically locked in the horizontal section 112.
[0035] As can be seen from the above, this application can be easily disassembled and assembled simply by rotating the inner liner 2.
[0036] In this embodiment, as Figure 2 , 8 As shown, the top of the inner liner 2 is bent outwards laterally to form a boss 21, and the outer end of the boss 21 is bent downwards to form a folded edge 22. The boss 21, the folded edge 22, and the outer wall of the inner liner 2 together form a groove 23. The top of the shoulder sleeve 4 is fitted into the groove 23, and the top of the shoulder sleeve 4 is provided with a first fastener 42. The folded edge 22 is provided with a second fastener 24. The first fastener 42 can press against the second fastener 24, so that the first fastener 42 and the second fastener 24 can be detachably fastened in the vertical direction. Because the inner liner 2 and the shoulder sleeve 4 are detachably connected through the first fastener 42 and the second fastener 24, when replacing the inner liner 2, the inner liner 2 and the shoulder sleeve 4 can be replaced at the same time, or only the inner liner 2 can be replaced.
[0037] The cap 3 is detachably mounted on the top opening of the bottle 1. In this embodiment, the cap 3 includes an inner cap 31 and an outer cap 32 fitted onto the inner cap 31. The inner cap 31 is detachably mounted on the top opening of the bottle 1, specifically, the inner cap 31 and the bottle 1 are threaded together. This allows the inner cap 31 to be made of plastic and the outer cap 32 to be made of metal, ensuring the strength of the cap 3 while saving costs.
[0038] like Figure 4 , 5As shown, the outer peripheral wall of the inner cover 31 is provided with a vertically extending first rib 311 and a horizontally extending second rib 312. The inner peripheral wall of the outer cover 32 is provided with a first groove 321 for the first rib 311 to be embedded in and a second groove 322 for the second rib 312 to be embedded in. The first groove 321 extends through the bottom edge of the outer cover 32. The second rib 312 can be a flexible part made of flexible material.
[0039] The top opening of the inner liner 2 is detachably covered with a cover plate 5. When the cover body 3 is closed, the cover plate 5 is located between the inner liner 2 and the cover body 3. In order to facilitate pulling the cover plate 5 to open the inner liner 2, the upper surface of the cover plate 5 is provided with a sheet-like body 51 for easy application of force.
[0040] During transportation, in order to prevent the cover plate 5 and the cover body 3 from colliding and causing wear, the top of the cover plate 5 is provided with a detachable flexible sheet 6. The flexible sheet 6 plays a buffering role. After the cream bottle is used, the flexible sheet 6 can be torn off.
Claims
1. A cream bottle with an improved inner liner replacement structure, comprising: Bottle body (1), having a receiving cavity (10) with an open top; The inner liner (2) has an open top and can be detachably placed in the receiving cavity (10); Its features are, The top of the inner liner (2) is located above the top of the bottle body (1). The part of the inner liner (2) located above the bottle body (1) is connected to a shoulder sleeve (4). The shoulder sleeve (4) is fitted on the top of the bottle body (1), and a limiting block (41) is provided on the shoulder sleeve (4). A limiting groove (11) is provided on the outer peripheral wall of the bottle body (1). The limiting groove (11) includes a vertically extending vertical section (111) and a horizontally extending horizontal section (112). The upper end of the vertical section (111) penetrates the top wall of the bottle body (1). The lower ends of the horizontal section (112) and the vertical section (111) are connected. The limiting block (41) can slide from the vertical section (111) to the horizontal section (112). The limiting block (41) can slide along the horizontal section (112), but the limiting block (41) is limited relative to the horizontal section (112) in the vertical direction.
2. The cream jar according to claim 1, characterized in that: The transverse segment (112) has a protrusion (113) near its closed end. The limiting block (41) can be limited between the protrusion (113) and the closed end of the transverse segment (112). The limiting block (41) can pass over the protrusion (113) under the action of external force.
3. The cream jar according to claim 1, characterized in that: The top of the inner liner (2) is bent outward to form a boss (21), and the outer end of the boss (21) is bent downward to form a folded edge (22). The boss (21), the folded edge (22) and the outer wall of the inner liner (2) together form a groove (23). The top of the shoulder sleeve (4) is embedded in the groove (23), and the top of the shoulder sleeve (4) is provided with a first buckle (42). The folded edge (22) is provided with a second buckle (24). The first buckle (42) and the second buckle (24) can be detachably fastened together in the vertical direction.
4. The cream jar according to any one of claims 1 to 3, characterized in that: The bottle body (1) is detachably covered with a cap (3) at the top opening.
5. The cream jar according to claim 4, characterized in that: The cap (3) includes an inner cap (31) and an outer cap (32) fitted onto the inner cap (31). The inner cap (31) is detachably fitted onto the top opening of the bottle (1).
6. The cream jar according to claim 5, characterized in that: The inner cap (31) and the bottle body (1) are threaded together.
7. The cream jar according to claim 5, characterized in that: The outer peripheral wall of the inner cover (31) is provided with a vertically extending first rib (311) and a horizontally extending second rib (312). The inner peripheral wall of the outer cover (32) is provided with a first groove (321) for the first rib (311) to be embedded in and a second groove (322) for the second rib (312) to be embedded in. The first groove (321) penetrates the bottom edge of the outer cover (32).
8. The cream jar according to any one of claims 1 to 3, characterized in that: The inner liner (2) is detachably covered with a cover plate (5) at the top opening.
9. The cream jar according to claim 8, characterized in that: The upper surface of the cover plate (5) is provided with a sheet-like body (51) that facilitates the application of force.
10. The cream jar according to claim 8, characterized in that: The top of the cover plate (5) is provided with a removable flexible sheet (6).
Citation Information
Patent Citations
Flip can for skin care products
CN217533867U
