Double-cavity cosmetic vacuum bottle

By employing a transparent double-layer bottle body, a partition structure, and a sealing ring in the dual-chamber cosmetic vacuum bottle, the problems of the inability to intuitively display the remaining amount and the susceptibility to damage in existing technologies have been solved, achieving convenient observation and structural stability, and improving the user experience.

CN223913661UActive Publication Date: 2026-02-17深圳市泽希生物科技有限公司
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Patent Information

Application Number
CN202520294865.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-17
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing dual-chamber cosmetic vacuum bottles cannot clearly display the remaining amount inside, are inconvenient to operate and are easily damaged, and have weak structural connections that make them prone to loosening and falling.

Method used

The design incorporates a double-layered transparent bottle, a partition structure, a drying block, a buffer cap, a protective sleeve, and a sealing ring to ensure airtightness and stability, while providing convenient observation and protection.

Benefits of technology

It enables a clear display of the remaining amount of cosmetics, improves the strength and protection of structural connections, reduces the risk of drops, and enhances ease of use and lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-cavity cosmetic vacuum bottle, which relates to the technical field of cosmetics and comprises a vacuum bottle component and an outer cover component, an inner cover component is mounted at the top end of the vacuum bottle component, the outer cover component is mounted at the upper end of the inner cover component, and piston components are arranged in the vacuum bottle component in bilateral symmetry. According to the double-cavity cosmetic vacuum bottle, due to the fact that the drying block is arranged in the buffer cover, after the outer cover assembly and the inner cover assembly are combined and connected in a butt joint mode, the interior of the double-cavity cosmetic vacuum bottle can keep good drying performance, and the situation that the quality of cosmetics is affected by damp is avoided, and in addition, the outer side surface of the double-layer bottle body and the outer side surface of the buffer cover are sleeved with the lower protective sleeve and the upper protective sleeve correspondingly; according to the cosmetic vacuum bottle, the structure can be protected to a certain degree while the holding hand feeling is guaranteed to avoid slipping, so that the service life of the whole cosmetic vacuum bottle is guaranteed, and a user can conveniently confirm the use condition of cosmetics in the bottle at any time through the double-layer bottle body made of the transparent material, so that real-time material supplementing is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of cosmetics technology, specifically a double-chamber cosmetic vacuum bottle. Background Technology

[0002] A dual-chamber cosmetic vacuum bottle is a packaging container with two independent chambers, typically used for separating and mixing cosmetic ingredients. This type of bottle usually contains a large chamber and a small chamber; the small chamber stores highly active ingredients, while the large chamber stores the main ingredients. During use, the contents of both chambers are mixed by pressing, ensuring the user receives a freshly blended skincare product.

[0003] Conventional cosmetic vacuum bottles, due to their structure and material properties, make it impossible for users to see the remaining amount of cosmetics inside. Furthermore, the structure limits the ease of changing or adding cosmetics, making the operation relatively inconvenient. Additionally, the bottles themselves are easily damaged by drops and impacts.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a double-chamber cosmetic vacuum bottle. Utility Model Content

[0005] The purpose of this invention is to provide a dual-chamber cosmetic vacuum bottle to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dual-chamber cosmetic vacuum bottle, comprising a vacuum bottle assembly and an outer cap assembly. An inner cap assembly is installed at the top of the vacuum bottle assembly, and the outer cap assembly is installed on the upper end of the inner cap assembly. Piston assemblies are symmetrically arranged inside the vacuum bottle assembly. The outer cap assembly includes a buffer cap, a drying block, a connecting thread, and an upper protective sleeve. A drying block is embedded in the top inner side of the buffer cap, and a connecting thread is provided on the lower surface of the inner wall of the buffer cap. The upper protective sleeve is movably fitted onto the outer surface of the buffer cap.

[0007] Furthermore, the vacuum bottle assembly includes a double-layer bottle body, a partition structure, an internal thread, a lower protective sleeve, and an anti-slip pad ring. The partition structure is vertically arranged in the middle of the interior of the double-layer bottle body, and the top of the double-layer bottle body is provided with an internal thread. The lower protective sleeve is movably fitted onto the outer surface of the double-layer bottle body, and an anti-slip pad ring is embedded in the bottom of the outer side of the double-layer bottle body.

[0008] Furthermore, the double-layered bottle body and the partition structure are integrated into one structure, and the double-layered bottle body is divided into two cavities by the partition structure. Moreover, the double-layered bottle body is made of transparent material.

[0009] Furthermore, the inner cover assembly includes a cap, a double-ended dropper, a double-tube pump body, a sealing ring, an upper thread, and a lower thread. The double-ended dropper is installed in the middle of the top of the cap, and the bottom of the double-ended dropper is connected to the double-tube pump body. A sealing ring is provided on the inner side of the bottom of the cap, and an upper thread is provided on the upper part of the outer surface of the cap, and a lower thread is provided on the lower part of the outer surface of the cap.

[0010] Furthermore, the dual-headed nozzle, the dual-tube pump body, and the cap have a rotating structure, and the sealing ring is embedded in the inner bottom side and is opposite to the top structure of the vacuum bottle assembly. The top surface structure of the separating structure matches the surface structure in the middle of the bottom of the dual-tube pump body.

[0011] Furthermore, the outer surface structure of the upper thread matches the inner surface structure of the connecting thread, and the outer surface structure of the lower thread matches the inner surface structure of the internal thread.

[0012] Furthermore, the piston assembly includes a piston body, a sealing ring, and an anti-stick coating. The sealing ring is installed on the upper and lower sides of the piston body, and the surface of the piston body is coated with an anti-stick coating.

[0013] Furthermore, the piston body has a semi-circular structure, and the outer surface structure of the piston body matches the surface structure of the internal cavity of the double-layer bottle.

[0014] This utility model provides a dual-chamber cosmetic vacuum bottle, which has the following beneficial effects:

[0015] 1. This utility model incorporates a drying block embedded at the top of the inner part of the buffer cover. Utilizing its structural characteristics, when the entire outer cover assembly is screwed together using the connecting threads and upper threads, the drying block effectively removes moisture from the space between the inner and outer cover assemblies. This prevents moisture from affecting the cosmetics inside the vacuum bottle assembly through the double-ended dropper. Furthermore, the screwing of the connecting threads and upper threads ensures a strong structural connection between the inner and outer cover assemblies, preventing structural separation due to impacts and thus providing excellent structural protection for the double-ended dropper.

[0016] 2. This utility model, by having an upper protective sleeve and a lower protective sleeve movably fitted onto the outer surface of the buffer cap and the double-layered bottle body respectively, utilizes its structural characteristics to provide good grip assistance for the surfaces of the vacuum bottle assembly and the outer cap assembly, preventing the grip from loosening and causing the entire vacuum bottle assembly to fall. At the same time, the upper and lower protective sleeves can also provide a certain degree of protection for the outer surface structure of the vacuum bottle assembly and the outer cap assembly, reducing unnecessary structural damage and thus improving the overall structural lifespan. In addition, since the double-layered bottle body itself is made of transparent material, users can observe the usage level of the cosmetics inside at any time, so as to replenish the material appropriately according to the remaining quantity, providing good convenience for use.

[0017] 3. This utility model, by setting two sets of sealing rings on the side of the piston body, utilizes the structural characteristics of the sealing rings to ensure the tight contact between the side surface of the piston body and the surface of the internal cavity of the double-layer bottle to the greatest extent. At the same time, it also ensures sufficient sealing at the structural joint. As the double-headed nozzle connected to the double-tube pump body is pressed, the piston body can be gradually moved upward by utilizing atmospheric pressure, while simultaneously removing cosmetics adhering to the inner wall of the double-layer bottle and pushing it upward, avoiding unnecessary waste. The anti-stick coating sprayed on the surface of the piston body ensures that the surface of the piston body is easier to clean and prevents unnecessary adhesion of cosmetics. In addition, the anti-slip pad ring set at the bottom of the double-layer bottle can ensure the stability of the entire vacuum bottle assembly on the table as much as possible and reduce unnecessary tilting problems. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the axial side view of the main body of a dual-chamber cosmetic vacuum bottle according to the present invention;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the main body of a double-cavity cosmetic vacuum bottle according to this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the vacuum bottle assembly of a dual-chamber cosmetic vacuum bottle according to the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the inner cap assembly of a double-chamber cosmetic vacuum bottle according to the present invention.

[0022] Figure 5 This is a cross-sectional view of the outer cap assembly of a dual-chamber cosmetic vacuum bottle according to this utility model.

[0023] In the diagram: 1. Vacuum bottle assembly; 101. Double-layer bottle body; 102. Separation structure; 103. Internal thread; 104. Lower protective sleeve; 105. Anti-slip pad ring; 2. Inner cap assembly; 201. Sealing cap; 202. Double-ended dropper; 203. Dual-tube pump body; 204. Sealing ring; 205. Upper thread; 206. Lower thread; 3. Outer cap assembly; 301. Buffer cap; 302. Drying block; 303. Connecting thread; 304. Upper protective sleeve; 4. Piston assembly; 401. Piston body; 402. Sealing ring; 403. Anti-stick coating. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] like Figures 1 to 5 As shown, a dual-chamber cosmetic vacuum bottle includes a vacuum bottle assembly 1 and an outer cap assembly 3. An inner cap assembly 2 is installed at the top of the vacuum bottle assembly 1, and the outer cap assembly 3 is installed on the upper end of the inner cap assembly 2. Piston assemblies 4 are symmetrically arranged inside the vacuum bottle assembly 1. The outer cap assembly 3 includes a buffer cover 301, a drying block 302, a connecting thread 303, and an upper protective sleeve 304. The drying block 302 is embedded in the top inner side of the buffer cover 301, and the connecting thread 303 is provided on the lower surface of the inner wall of the buffer cover 301. The upper protective sleeve 304 is movably sleeved on the outer surface of the buffer cover 301. Utilizing its structural characteristics, when the entire outer cap assembly 3 is screwed together using the structural characteristics between the connecting thread 303 and the upper thread 205, the drying block 302 will effectively dehumidify the space between the inner cap assembly 2 and the outer cap assembly 3.

[0026] like Figures 1 to 5 As shown, the vacuum bottle assembly 1 includes a double-layer bottle body 101, a partition structure 102, an internal thread 103, a lower protective sleeve 104, and an anti-slip pad ring 105. The partition structure 102 is vertically arranged in the middle of the interior of the double-layer bottle body 101, and the internal thread 103 is opened at the top of the double-layer bottle body 101. The lower protective sleeve 104 is movably sleeved on the outer surface of the double-layer bottle body 101, and the anti-slip pad ring 105 is embedded in the bottom of the outer side of the double-layer bottle body 101. The double-layer bottle body 101 and the partition structure 102 are integrated into one structure, and the interior of the double-layer bottle body 101 is divided into two cavities by the partition structure 102. The double-layer bottle body 101 is made of transparent material. The upper protective sleeve 304 and the lower protective sleeve 104 are movably sleeved on the outer surface of the buffer cover 301 and the double-layer bottle body 101, respectively. By utilizing its structural characteristics, it can provide good grip assistance for the surfaces of the vacuum bottle assembly 1 and the outer cover assembly 3, and prevent the grip from loosening.

[0027] like Figures 1 to 5As shown, the inner cover assembly 2 includes a cap 201, a double-ended dropper 202, a dual-tube pump body 203, a sealing ring 204, an upper thread 205, and a lower thread 206. The double-ended dropper 202 is installed in the center of the top of the cap 201, and the bottom of the double-ended dropper 202 is connected to the dual-tube pump body 203. A sealing ring 204 is provided on the inner side of the bottom of the cap 201, and an upper thread 205 is provided on the upper part of the outer surface of the cap 201, while a lower thread 206 is provided on the lower part of the outer surface of the cap 201. A rotating structure exists between the double-ended dropper 202, the dual-tube pump body 203, and the cap 201. The sealing ring 204 is embedded in the inner side of the bottom and faces the top structure of the vacuum bottle assembly 1. The top surface structure of the separating structure 102 matches the surface structure in the center of the bottom of the dual-tube pump body 203. The outer surface structure of the upper thread 205 matches the connecting thread. The inner surface structures of 303 are matched, and the outer surface structure of the lower thread 206 is matched with the inner surface structure of the inner thread 103. The piston assembly 4 includes a piston body 401, a sealing ring 402, and an anti-stick coating 403. The sealing ring 402 is installed on the side surface of the piston body 401, and the surface of the piston body 401 is coated with an anti-stick coating 403. The piston body 401 has a semi-circular structure, and the outer surface structure of the piston body 401 matches the surface structure of the internal cavity of the double-walled bottle 101. By setting two sets of sealing rings 402 on the side of the piston body 401, the structural characteristics of the sealing rings 402 are used to ensure the tight contact between the side surface of the piston body 401 and the surface of the internal cavity of the double-walled bottle 101 to the greatest extent, and also to ensure sufficient sealing at the structural joint.

[0028] In summary, as Figures 1 to 5 As shown, when using this dual-chamber cosmetic vacuum bottle, first push down the two sets of piston assemblies 4 inside the vacuum bottle assembly 1 using an external tool or structural component to confirm that the piston assembly 4 is at the bottom of the cavity inside the vacuum bottle assembly 1.

[0029] Then, the cosmetic materials to be used are injected into the two sets of cavity structures of the double-layer bottle 101 with the partition structure 102. After injecting an appropriate amount of cosmetic materials, the inner cap assembly 2 is then connected and screwed with the inner thread 103 at the upper end of the double-layer bottle 101 using the lower thread 206 on the lower end surface of the cap 201. This connects and fixes the vacuum bottle assembly 1 and the inner cap assembly 2.

[0030] During this process, the double-tube pump body 203 and sealing ring 204 on the inner side of the bottom of the cap 201 will connect with the top of the double-layer bottle 101 and the partition structure 102 to form a sealing structure. Then, by pressing the double-headed dropper 202 on the top of the cap 201 vertically, the double-tube pump body 203 connected to the bottom will be driven to operate, thereby extracting the cosmetics inside the double-layer bottle 101. During this process, due to atmospheric pressure and other factors, the piston body 401 with the anti-stick coating 403 on its surface will be pressed and extracted by the double-headed dropper 202 and the double-tube pump body 203, causing the air pressure inside the vacuum bottle assembly 1 to change, and then gradually move upward, and initially lift the cosmetics to ensure that the double-tube pump body 203 can effectively extract them.

[0031] In daily use, when the vacuum bottle assembly 1 is not in use, the buffer cap 301 can be connected to the upper thread 205 on the upper surface of the cap 201 using the connecting thread 303 on the lower inner wall surface and screwed on. This connects and fixes the outer cap assembly 3 to the top of the inner cap assembly 2, thereby assembling the vacuum bottle assembly 1, the inner cap assembly 2, and the outer cap assembly 3 into a whole structure. The anti-slip pad ring 105 at the bottom of the double-layer bottle body 101 can be used to stably place it on the table. The lower protective sleeve 104 and the upper protective sleeve 304 ensure the stability of the entire cosmetic vacuum bottle and provide protection against drops.

[0032] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A dual-chamber cosmetic vacuum bottle, comprising a vacuum bottle assembly (1) and an outer cap assembly (3), characterized in that: The vacuum bottle assembly (1) is equipped with an inner cover assembly (2) at its top end, and the outer cover assembly (3) is installed on the upper end of the inner cover assembly (2). Piston assemblies (4) are symmetrically arranged inside the vacuum bottle assembly (1). The outer cover assembly (3) includes a buffer cover (301), a drying block (302), a connecting thread (303), and an upper protective sleeve (304). The drying block (302) is embedded in the top inner side of the buffer cover (301), and the connecting thread (303) is provided on the lower surface of the inner wall of the buffer cover (301). The upper protective sleeve (304) is movably sleeved on the outer surface of the buffer cover (301).

2. The double-chamber cosmetic vacuum bottle according to claim 1, characterized in that, The vacuum bottle assembly (1) includes a double-layer bottle body (101), a partition structure (102), an internal thread (103), a lower protective sleeve (104), and an anti-slip pad ring (105). The partition structure (102) is vertically arranged in the middle of the interior of the double-layer bottle body (101), and the top of the double-layer bottle body (101) is provided with an internal thread (103). The lower protective sleeve (104) is movably sleeved on the outer surface of the double-layer bottle body (101), and an anti-slip pad ring (105) is embedded in the bottom of the outer side of the double-layer bottle body (101).

3. A double-chamber cosmetic vacuum bottle according to claim 2, characterized in that, The double-layer bottle body (101) and the partition structure (102) are integrated into one structure, and the double-layer bottle body (101) is divided into two cavities by the partition structure (102). The double-layer bottle body (101) is made of transparent material.

4. A double-chamber cosmetic vacuum bottle according to claim 2, characterized in that, The inner cover assembly (2) includes a cap (201), a double-ended dropper (202), a double-tube pump body (203), a sealing ring (204), an upper thread (205), and a lower thread (206). The double-ended dropper (202) is installed in the middle of the top of the cap (201), and the double-tube pump body (203) is connected to the bottom of the double-ended dropper (202). A sealing ring (204) is provided on the inner side of the bottom of the cap (201), and an upper thread (205) is provided on the upper part of the outer surface of the cap (201), and a lower thread (206) is provided on the lower part of the outer surface of the cap (201).

5. A dual-chamber cosmetic vacuum bottle according to claim 4, characterized in that, The dual-headed nozzle (202), the dual-tube pump body (203) and the cap (201) have a rotating structure, and the sealing ring (204) is embedded in the bottom inner side and is opposite to the top structure of the vacuum bottle assembly (1). The top surface structure of the partition structure (102) matches the bottom middle surface structure of the dual-tube pump body (203).

6. A dual-chamber cosmetic vacuum bottle according to claim 4, characterized in that, The outer surface structure of the upper thread (205) matches the inner surface structure of the connecting thread (303), and the outer surface structure of the lower thread (206) matches the inner surface structure of the internal thread (103).

7. A double-chamber cosmetic vacuum bottle according to claim 2, characterized in that, The piston assembly (4) includes a piston body (401), a sealing ring (402), and an anti-stick coating (403). The sealing ring (402) is installed on the side surface of the piston body (401), and the surface of the piston body (401) is coated with an anti-stick coating (403).

8. A double-chamber cosmetic vacuum bottle according to claim 7, characterized in that, The piston body (401) has a semi-circular structure, and the outer surface structure of the piston body (401) matches the surface structure of the internal cavity of the double-layer bottle (101).