Sealed cosmetic bottle with multi-layer structure

Abstract

The utility model discloses a sealed cosmetic bottle with a multi-layer structure, and relates to the field of cosmetic packaging. The bottle cap comprises an outer shell and an inner bottle cap, external threads are arranged on the top of the outer shell, internal threads are arranged on the inner wall of the inner bottle cap, the outer bottle cap and the inner bottle cap are arranged, and a sealing gasket at the bottom of the outer bottle cap makes contact with the outer shell to form a first layer of sealing protection. The inner bottle cap and the shell are screwed through threads to form a second layer of sealing protection, the inner bottle cap and a rubber ring in the middle of a bottle opening of the shell form a third layer of sealing protection, a sealing piece and a limiting block are pressed tightly to form a fourth layer of sealing protection, a vacuum layer arranged between the shell and the inner bottle forms a fifth layer of sealing protection, and sealing is effectively formed through multiple layers of sealing; and the bottle cap can be opened only when the bottle cap is pressed downwards to enable the upper clamping teeth and the lower clamping teeth to be clamped and rotate at the same time, so that leakage of the cosmetics can be effectively prevented, and the situation that children swallow the cosmetics by mistake during playing and harm personal safety is avoided.

Description

Technical Field

[0001] The utility model relates to the field of cosmetic packaging, and specifically relates to a multi-layer structure sealed cosmetic bottle. Background Art

[0002] A cosmetic bottle is a container specifically used for packaging and storing cosmetics. These containers are usually made of various materials, including plastics, glass, metals, and ceramics, etc. Each material has its unique advantages and applicable scenarios. The designs of cosmetic bottles are diverse and can adapt to different types and forms of cosmetics, such as liquids, pastes, powders, etc. Existing cosmetic bottles mainly include two parts: a bottle body and a cap. The bottle body and the cap are fixed by threaded connection. When carried out, there may be gaps between the bottle body and the cap due to friction and collision, etc. The solution in the bottle will flow out from the threaded cavity through the gap between the bottle body and the cap. At this time, a multi-layer structure sealed cosmetic bottle with the patent number "202320425532.4" is provided.

[0003] Currently, for the multi-layer structure sealed cosmetic bottle with the patent number "202320425532.4", the cap includes a bottle cap threadedly sealed on the bottle mouth of the bottle body and a bottle cap sleeved around the bottle cap. There are convex ribs on the side wall of the bottle cap, and a clamping groove for cooperating with the convex ribs is provided on the inner wall of the bottle cap. A sealing pad for simultaneously connecting with the bottom of the bottle cap and the bottle cap is sleeved at the bottom of the bottle mouth on the bottle body. Through the above design, the cosmetics can have good sealing performance during long-term storage and short-term frequent use, and the service life of the cosmetics can be extended. However, the multi-layer structure sealed cosmetic bottle with the patent number "202320425532.4" still has defects. Among them, the way of buckling the bottle cap and the bottle cap, and the bottle body and the bottle seat through the convex ribs and the clamping groove is prone to wear after long-term use, resulting in the bottle cap not being tightly buckled and the bottle cap being easily detached and lost. Moreover, it cannot prevent children from easily opening the cosmetic bottle during daily play, causing accidental swallowing. The bottle cap and the bottle body are only tightened by threads, and are prone to wear and slip after long-term use, resulting in poor sealing. Content of the Utility Model

[0004] Based on this, the purpose of the present utility model is to provide a multi-layer structure sealed cosmetic bottle to solve the technical problems of liquid leakage, cosmetic oxidation caused by poor sealing of the cosmetic bottle, and potential safety hazards caused by easy opening by children.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A multi-layer structure sealed cosmetic bottle, including an outer shell and an inner bottle cap. The top of the outer shell is provided with an external thread, the inner wall of the inner bottle cap is provided with an internal thread, the internal thread is adapted to the external thread, and a sliding groove is opened on the outer surface of the inner bottle cap. An outer bottle cap is engaged and slid by a slider through the sliding groove;

[0006] An upper engaging tooth is provided inside the outer bottle cap, and a lower engaging tooth is provided at the top of the inner bottle cap, and the upper engaging tooth is adapted to the lower engaging tooth.

[0007] By adopting the above technical solution, the internal thread and the external thread are adapted to each other, so that the inner bottle cap can be tightly screwed onto the outer shell. The tight thread connection also effectively enhances the sealing performance of the cosmetic bottle and is convenient for daily use to open and tighten.

[0008] Furthermore, a spring sleeve rod is provided at the bottom of the inner bottle cap, and a sealing piece is fixedly connected to the bottom of the spring sleeve rod.

[0009] By adopting the above technical solution, the spring sleeve rod enables the sealing piece to tightly seal the bottle mouth when the bottle cap is closed, effectively enhancing the sealing effect of the cosmetic bottle and preventing the cosmetics from leaking during transportation.

[0010] Furthermore, an inner bottle is provided inside the outer shell, a limiting block is provided above the inner wall of the inner bottle, and the limiting block is adapted to the sealing piece.

[0011] By adopting the above technical solution, the limiting block can effectively press and seal the bottle mouth by the sealing piece, enhancing the sealing performance without affecting normal use.

[0012] Furthermore, a vacuum layer is provided between the outer shell and the inner bottle.

[0013] By adopting the above technical solution, the vacuum layer is located between the outer shell and the inner bottle, and it forms an effective heat insulation barrier, which helps to keep the cosmetics in the inner bottle at a constant temperature and avoid the adverse effects caused by the change of the external environmental temperature on the cosmetics.

[0014] Furthermore, a sealing washer is provided at the bottom of the outer bottle cap.

[0015] By adopting the above technical solution, the sealing washer is located at the bottom of the outer bottle cap and forms the first layer of sealing protection when contacting the outer shell. It can closely fit on the outer shell to prevent the cosmetics from leaking or being contaminated.

[0016] Furthermore, a rubber ring is provided at the connection between the inner bottle cap and the outer shell.

[0017] By adopting the above technical solution, the rubber ring is provided at the connection between the inner bottle cap and the outer shell. It plays a sealing role when the inner bottle cap is tightened. The rubber ring has good elasticity and sealing performance and can closely fill the tiny gap between the inner bottle cap and the outer shell, thereby enhancing the sealing effect and preventing the cosmetics from leaking.

[0018] Furthermore, the inner bottle is made of glass material.

[0019] By adopting the above technical solution, the inner bottle made of glass has excellent chemical stability, which means that it will not react with the components in the cosmetics, thus ensuring the purity and quality of the cosmetics.

[0020] Furthermore, the outer shell is made of PET material.

[0021] By adopting the above technical solution, the PET material has good impact resistance, can effectively protect the inner bottle from collision and extrusion, and is light in weight and convenient to carry.

[0022] In summary, the main beneficial effects of the present utility model are as follows:

[0023] 1. By setting an outer bottle cap and an inner bottle cap in the present utility model, the sealing gasket at the bottom of the outer bottle cap contacts the outer shell to form the first layer of sealing protection. The inner bottle cap is screwed tightly with the outer shell through threads to form the second layer of sealing protection. A rubber ring is sandwiched between the inner bottle cap and the bottle mouth of the outer shell to form the third layer of sealing protection. The spring sleeve rod presses the sealing piece against the limiting block to form the fourth layer of sealing protection. The vacuum layer provided between the outer shell and the inner bottle forms the fifth layer of sealing protection. The multi-layer sealing can effectively prevent the leakage of the internal cosmetics, and at the same time can prevent the internal cosmetics from contacting the external air for a long time, affecting the normal use of the cosmetics. The vacuum layer can form a broken bridge between the outer shell and the inner bottle, effectively avoiding the breakage of the bottle body caused by collision and extrusion, polluting the cosmetics, and can effectively avoid the hardening and caking of the cosmetics caused by too high or too low external environmental heat, etc., and extending the service life of the cosmetics;

[0024] 2. By setting upper teeth and lower teeth in the present utility model, when separating the outer bottle cap and the inner bottle cap, only by rotating while pressing down to engage the upper teeth and the lower teeth can the bottle cap be opened, which can effectively prevent the leakage of cosmetics caused by the rotation of the bottle cap due to friction, collision and extrusion, etc. during out-of-home carrying, and at the same time can effectively avoid the bottle cap being opened when children play, resulting in the danger of accidental swallowing and endangering personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0026] Figure 2 is a three-dimensional structural schematic diagram of the cross-section of the present utility model;

[0027] Figure 3 is a planar structural schematic diagram of the cross-section of the present utility model;

[0028] Figure 4 is a three-dimensional structural schematic diagram of the inner bottle cap of the present utility model.

[0029] In the figure: 1. Outer shell; 2. Outer bottle cap; 3. Sealing washer; 4. Lower engaging teeth; 5. Upper engaging teeth; 6. Slide block; 7. Slide groove; 8. Inner bottle cap; 9. Spring sleeve rod; 10. Sealing piece; 11. Limit block; 12. Inner bottle; 13. Vacuum layer; 14. External thread; 15. Internal thread. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0031] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model. Embodiment 1:

[0032] A multi-layer structure sealed cosmetic bottle, as Figures 1 - 4 shown, includes an outer shell 1 and an inner bottle cap 8. An external thread 14 is provided at the top of the outer shell 1, and an internal thread 15 is provided on the inner wall of the inner bottle cap 8. The internal thread 15 is adapted to the external thread 14. A slide groove 7 is formed on the outer surface of the inner bottle cap 8, and an outer bottle cap 2 is engaged and slid by a slide block 6 in the slide groove 7;

[0033] An upper engaging tooth 5 is provided inside the outer bottle cap 2, and a lower engaging tooth 4 is provided at the top of the inner bottle cap 8. The upper engaging tooth 5 is adapted to the lower engaging tooth 4. The adaptation of the internal thread 15 to the external thread 14 enables the inner bottle cap to be tightly screwed onto the outer shell. The tight thread connection also effectively enhances the sealing performance of the cosmetic bottle and is convenient for daily use to open and tighten. The adaptation of the upper engaging tooth 5 to the lower engaging tooth 4 enables the cosmetic bottle to be opened only when it is rotated while pressing down to engage the upper engaging tooth 5 with the lower engaging tooth 4, which can effectively prevent the cosmetic from leaking due to friction, collision, and extrusion during out-of-home carrying, and at the same time can effectively prevent children from opening the bottle cap during play, resulting in accidental swallowing and endangering personal safety. Embodiment 2:

[0034] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , a spring sleeve rod 9 is provided at the bottom of the inner bottle cap 8, and a sealing piece 10 is fixedly connected to the bottom of the spring sleeve rod 9. The spring sleeve rod 9 enables the sealing piece 10 to tightly seal the bottle mouth when the bottle cap is closed, effectively enhancing the sealing effect of the cosmetic bottle and preventing the cosmetic from leaking during carrying. The spring sleeve rod 9 enables the sealing piece 10 to be taken out synchronously when the inner bottle cap 8 is opened, making the use more convenient.

[0035] Refer to Figure 1 , Figure 2 , Figure 3, inside the outer shell 1, there is an inner bottle 12. Above the inner wall of the inner bottle 12, there is a limit block 11 which is adapted to the sealing piece 10. The limit block 11 can effectively make the sealing piece 10 tightly seal the bottle mouth, enhancing the sealing performance without affecting normal use. The limit block 11 can fix the position of the sealing piece 10, effectively preventing the sealing piece from falling off or shifting during carrying or use.

[0036] Refer to Figure 1 、 Figure 2 、 Figure 3 , between the outer shell 1 and the inner bottle 12, there is a vacuum layer 13. The vacuum layer 13 is located between the outer shell 1 and the inner bottle 12. It forms an effective heat insulation barrier, which helps to keep the cosmetics in the inner bottle at a constant temperature, avoiding the adverse effects caused by the change of the external environmental temperature on the cosmetics. The vacuum layer 13 isolates the outer shell 1 from the inner bottle 12. When there is an external impact or extrusion, it will not directly impact the inner bottle 12, reducing the risk of the inner bottle being damaged.

[0037] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , at the bottom of the outer bottle cap 2, there is a sealing gasket 3. The sealing gasket 3 is located at the bottom of the outer bottle cap 2. When it contacts the outer shell 1, it forms the first layer of sealing protection, which can closely fit on the outer shell 1, preventing the cosmetics from leaking or being contaminated. The sealing gasket 3 can also provide additional buffering effect, protecting the cosmetics bottle from collision and extrusion during carrying or transportation.

[0038] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , at the connection between the inner bottle cap 8 and the outer shell 1, there is a rubber ring. The rubber ring is set at the connection between the inner bottle cap 8 and the outer shell 1. It plays a sealing role when the inner bottle cap is tightened. The rubber ring has good elasticity and sealing performance, and can tightly fill the tiny gap between the inner bottle cap and the outer shell, thus enhancing the sealing effect and preventing the cosmetics from leaking. The rubber ring can absorb part of the external impact force, protecting the cosmetics bottle from being damaged.

[0039] Refer to Figure 1 、 Figure 2 、 Figure 3 , the inner bottle 12 is made of glass material. The glass inner bottle has excellent chemical stability, which means it will not react with the components in the cosmetics, thus ensuring the purity and quality of the cosmetics. Glass also has good barrier performance, which can effectively prevent the infiltration of gas and moisture, further protecting the cosmetics from external environmental pollution.

[0040] Refer to Figure 1 、 Figure 2 、Figure 3 , the outer shell 1 is made of PET material. The PET material has good impact resistance, which can effectively protect the inner bottle from collision and extrusion. It is lightweight and convenient to carry. The PET material has good transparency and gloss, making the appearance of the cosmetic bottle more beautiful and allowing the usage situation of the internal cosmetics to be seen conveniently.

[0041] The implementation principle of the present utility model is as follows: First, during production, the inner bottle cap 8 and the outer bottle cap 2 are integrated and are engaged through the slider 6 and the chute 7. When it is necessary to open, press down the outer bottle cap 2 so that the upper teeth 5 inside the outer bottle cap 2 are engaged with the lower teeth 4 on the top of the inner bottle cap 8. While rotating the outer bottle cap 2, drive the inner bottle cap 8 to rotate synchronously, and unscrew the bottle cap through the internal thread 15 and the external thread 14, and take out the sealing piece 10 at the bottom of the inner bottle cap 8 to use the cosmetics. When going out or when children play, without pressing down, just rotate the outer bottle cap 2, and the outer bottle cap 2 rotates independently without contacting the inner bottle cap, and the bottle cap cannot be opened.

[0042] Parts not involved in the present utility model are the same as or can be implemented using the prior art, and will not be elaborated here.

[0043] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and are not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A multi-layer sealed cosmetic bottle, characterized in that: The invention comprises an outer shell (1) and an inner bottle cap (8), wherein the top of the outer shell (1) is provided with an outer thread (14), the inner wall of the inner bottle cap (8) is provided with an inner thread (15), the inner thread (15) is matched with the outer thread (14), and the outer surface of the inner bottle cap (8) is provided with a slide groove (7), and the slide groove (7) is engaged and slidably connected with the outer bottle cap (2) through a slider (6); An upper latching tooth (5) is arranged inside the outer bottle cap (2), and a lower latching tooth (4) is arranged on the top of the inner bottle cap (8), wherein the upper latching tooth (5) is matched with the lower latching tooth (4).

2. The multi-layer sealed cosmetic bottle according to claim 1, characterized in that: A spring sleeve rod (9) is provided at the bottom of the inner bottle cap (8), and a sealing sheet (10) is fixedly connected to the bottom of the spring sleeve rod (9).

3. The multi-layer sealed cosmetic bottle according to claim 1, characterized in that: An inner bottle (12) is arranged inside the outer shell (1), and a limit block (11) is arranged above the inner wall of the inner bottle (12), wherein the limit block (11) is matched with the sealing sheet (10).

4. The multi-layer sealed cosmetic bottle according to claim 1, characterized in that: A vacuum layer (13) is provided between the outer shell (1) and the inner bottle (12).

5. The multi-layer sealed cosmetic bottle according to claim 1, characterized in that: A sealing gasket (3) is provided at the bottom of the outer bottle cap (2).

6. The multi-layer sealed cosmetic bottle according to claim 1, characterized in that: A rubber ring is provided at the connection between the inner bottle cap (8) and the bottle mouth of the outer shell (1).

7. The multi-layer sealed cosmetic bottle according to claim 1, characterized in that: The inner bottle (12) is made of glass.

8. The multi-layer sealed cosmetic bottle according to claim 1, characterized in that: The shell (1) is made of PET material.

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