Cosmetic bottle with double-layer structure

Abstract

The utility model discloses a cosmetic bottle with a double-layer structure, and relates to the technical field of articles for daily use. The cosmetic bottle comprises a bottle body, the bottle body is composed of a shell and an inner container, the inner container is fixedly embedded in the shell, the connecting point of the inner container and the shell is located at a bottle opening of the bottle body, the inner container is used for storing cosmetic liquid, a gas storage cavity is reserved between the outer wall of the inner container and the inner wall of the shell, and the gas storage cavity is filled with protective gas; the flow guide cavities are arranged on the inner wall of a bottle opening of the bottle body in an annular array mode. According to the cosmetic bottle, the bottle body with the double-layer structure is arranged, and the protective gas is filled between the shell and the inner container, so that on one hand, a buffering effect can be achieved, and the situation that the inner container is damaged due to collision and falling is avoided; and the protective gas in the gas storage cavity can fill the space of the inner container due to the loss of the cosmetic liquid, so that oxygen is effectively isolated from the cosmetic liquid, and the valid period of the cosmetic liquid is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities equipment, and particularly relates to a double-layer structure cosmetic bottle. Background Art

[0002] In the cosmetics industry, the design of the packaging structure not only concerns the beauty of the product and the brand image, but also directly affects the quality maintenance of the product and the user experience. Most traditional cosmetic bottles adopt a single-layer structure. When using this structure, after the cosmetic liquid is squeezed out, external air will enter the cosmetic bottle to fill the vacated space. However, the air contains not only oxygen, but also moisture, dust, microorganisms and other pollutants. After these components come into contact with the active molecules in the cosmetic liquid, a series of chemical reactions and biological reactions will be triggered.

[0003] Oxygen in the air is the main factor causing the oxidation of the cosmetic liquid. The oxidation reaction will destroy the effective components in the cosmetic liquid, making them lose their activity and affecting the efficacy and safety of the product. In addition, the moisture in the air will cause the components in the cosmetic liquid to undergo hydrolysis reactions, changing their physical and chemical properties, thereby affecting the stability and use effect of the cosmetic liquid. The entry of dust and microorganisms may cause contamination and deterioration of the cosmetic liquid, resulting in bacterial reproduction and affecting the hygienic safety of the cosmetic liquid.

[0004] Due to these reasons, during the long-term use of a single-layer structure cosmetic bottle, the cosmetic liquid contained therein is prone to deterioration due to the entry of external air, thereby shortening the shelf life of the product, reducing the user experience and the trust in the product. Therefore, in order to better protect the quality of the cosmetic liquid and extend its effective period, it is particularly necessary to propose a double-layer structure cosmetic bottle. Content of the Utility Model

[0005] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0006] A double-layer structure cosmetic bottle, comprising:

[0007] A bottle body, which consists of an outer shell and an inner liner. The inner liner is fixedly embedded inside the outer shell, and the connection point between the two is located at the bottle mouth of the bottle body. The inner liner is used for storing cosmetic liquid. A gas storage cavity is reserved between the outer wall of the inner liner and the inner wall of the outer shell, and the inside of the gas storage cavity is filled with a protective gas;

[0008] A diversion cavity, which is annularly and arrayedly arranged on the inner wall of the bottle mouth of the bottle body. The diversion cavity is communicated with the gas storage cavity, and an air outlet communicated with the diversion cavity is constructed at the mouth edge of the bottle body;

[0009] A bottle cap, which is threadedly connected to the bottle mouth of the bottle body;

[0010] A pressing pump, which is arranged on the bottle cap and is used for pumping out the cosmetic liquid.

[0011] Further, an annular seat is fixedly provided at the bottom of the bottle mouth of the bottle body, and a rubber ring is embedded inside the annular seat, and the rubber ring is adapted to the size of the bottle cap.

[0012] Further, the protective gas is nitrogen.

[0013] Further, the outer shell is a flexible PVC shell, and the inner container is made of PET plastic.

[0014] Further, the pressing pump includes a pump body embedded in the middle of the bottle cap. A straw is connected to the bottom of the pump body. The connection part between the inside of the pump body and the straw is conical, and a first glass ball is movably arranged. A central sliding plug is slidably inserted through the middle of the inside of the pump body. A piston core is connected to the bottom of the central sliding plug. A spring is connected between the piston core and the bottom cavity of the pump body. A limiting ring is fixedly provided on the upper side inside the central sliding plug, and a second glass ball is movably arranged above the limiting ring. A discharge head is communicated with the top of the central sliding plug.

[0015] Further, a sealing ring is provided at the connection part between the pump body and the bottle cap.

[0016] Further, the bottom of the straw is configured with an inclined surface.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. By providing a bottle body with a double-layer structure and filling a protective gas between the outer shell and the inner container, on the one hand, it can play a buffering role to avoid damage to the inner container caused by collision and falling. In addition, when the user uses the lotion, as the pressing pump pumps out the lotion, the protective gas in the gas storage cavity will enter the inside of the inner container through the diversion cavity and the air outlet holes, filling the space lost by the lotion in the inner container, effectively isolating oxygen from contacting the lotion, slowing down or preventing the oxidation of active ingredients, and prolonging the effective period of the lotion. Description of the Drawings

[0019] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0020] Figure 2 is a top view schematic diagram of the present utility model;

[0021] Figure 3 is the present utility model Figure 2 A-A direction cross-sectional schematic diagram in;

[0022] Figure 4 is a bottle body structure schematic diagram of the present utility model;

[0023] Reference numerals: 1, bottle body; 101, outer shell; 102, inner liner; 103, gas storage cavity; 104, diversion cavity; 105, air outlet; 2, bottle cap; 3, pressing pump; 301, pump body; 302, straw; 303, first glass ball; 304, central sliding plug; 305, piston core; 306, spring; 307, second glass ball; 308, discharge head; 309, sealing ring; 4, annular seat; 401, rubber ring. Detailed implementation mode

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0025] This application provides a double-layer structure cosmetic bottle, mainly used to solve the problem that when using this structure in the prior art, after the cosmetic liquid is squeezed out, external air will enter the cosmetic bottle to fill the vacated space. The oxygen in the air contacts the active molecules in the cosmetic liquid, triggering a series of chemical reactions. These reactions may cause the oxidation of the active ingredients in the cosmetic liquid, thereby reducing its activity and affecting the efficacy and safety of the product. The following technical solutions are provided and will be described in detail below in combination with Figures 1 - 4 Make a detailed description:

[0026] A double-layer structure cosmetic bottle, comprising:

[0027] The bottle body 1, which is composed of an outer shell 101 and an inner liner 102. The inner liner 102 is fixedly embedded inside the outer shell 101, and the connection point between the two is located at the bottle mouth of the bottle body 1. The inner liner 102 is used to store the cosmetic liquid. A gas storage cavity 103 is reserved between the outer wall of the inner liner 102 and the inner wall of the outer shell 101, and a protective gas is filled inside the gas storage cavity 103;

[0028] After the cosmetic liquid in the inner liner 102 is pumped out, the protective gas filled inside the gas storage cavity 103 automatically supplements the inner liner to ensure that the internal and external pressures of the inner liner 102 are consistent;

[0029] The diversion cavity 104 is annularly and arrayedly arranged on the inner wall of the bottle mouth of the bottle body 1. The diversion cavity 104 is communicated with the gas storage cavity 103, and an air outlet 105 communicated with the diversion cavity 104 is constructed at the mouth edge of the bottle body 1;

[0030] The bottle cap 2 is threadedly connected to the bottle mouth of the bottle body 1;

[0031] The pressing pump 3 is arranged on the bottle cap 2 and is used for pumping out the cosmetic liquid. The pressing pump 3 includes a pump body 301 embedded in the middle of the bottle cap 2. A straw 302 is connected to the bottom of the pump body 301. The connection part between the inside of the pump body 301 and the straw 302 is conical, and a first glass ball 303 is movably arranged therein. A central sliding plug 304 is slidably inserted through the middle of the inside of the pump body 301. A piston core 305 is connected to the bottom of the central sliding plug 304. A spring 306 is connected between the piston core 305 and the bottom cavity of the pump body 301. A limiting ring is fixedly arranged on the upper side inside the central sliding plug 304, and a second glass ball 307 is movably arranged above the limiting ring. A discharge head 308 is communicated with the top of the central sliding plug 304.

[0032] The specific working process and principle description of this double-layer structure cosmetic bottle are as follows:

[0033] When the user uses the cosmetic bottle, by pressing the head of the pump body 3, the central sliding plug 304 moves downward, and the cosmetic liquid is sucked into the inside of the pump body 301 through the straw 302. At this time, since the amount of cosmetic liquid inside the pump body 301 increases, the first glass ball 303 originally located at the bottom of the pump body 301 will rise to block the inlet of the straw 302, preventing the cosmetic liquid from flowing back. Continuing to press, the central sliding plug 304 pushes the piston core 305 to move downward, compressing the spring 306 and causing the second glass ball 307 to rise, and the cosmetic liquid is pushed out through the discharge head 308. After releasing the pump body 3, due to the restoring effect of the spring 306, the central sliding plug 304 and the piston core 305 return to their original positions, waiting for the next operation;

[0034] At the same time, as the cosmetic liquid is pumped out, the pressure inside the inner container 102 decreases, resulting in an imbalance in the pressure between the inner container 102 and the outer shell 101. At this time, the protective gas in the gas storage cavity 103 automatically replenishes the inner container 102 through the diversion cavity 104 and the air outlet 105, replacing the volume of the pumped-out cosmetic liquid, thereby preventing external air from entering (it should be noted that the diameter of the bottle mouth section provided with the air outlet 105 is slightly smaller than the diameter of the lower end part, which can ensure that the protective gas smoothly enters the inner container 102. For details, see Figure 4 )

[0035] It should be noted that, in order to achieve a better protection effect, generally, the volume of the protective gas is two to three times the volume of the cosmetic liquid.

[0036] As Figure 4 shown, in some embodiments, a ring seat 4 is fixedly arranged at the bottom of the bottle mouth of the bottle body 1. A rubber ring 401 is embedded inside the ring seat 4. The rubber ring 401 is adapted to the size of the bottle cap 2. More specifically, the rubber ring 401 serves as a sealing element. After the bottle cap 2 is screwed onto the bottle body 1, a tight contact is formed between the rubber ring 401 and the bottle cap 2, effectively preventing air and pollutants from entering the bottle and ensuring the purity and safety of the cosmetic liquid.

[0037] AsFigure 3 As shown, in some embodiments, the protective gas is nitrogen. More specifically, nitrogen is a very stable gas under natural conditions, which can greatly reduce or eliminate the possibility of the active ingredients in the cosmetic liquid reacting with oxygen. This helps to maintain the stability of the product and prevent product deterioration or efficacy reduction caused by oxidation. In addition, nitrogen is one of the main components of the atmosphere, with rich sources and relatively low costs for extraction and use. Moreover, nitrogen is harmless to humans and the environment and will not have adverse reactions with other ingredients in the cosmetics, ensuring the safety of the product.

[0038] As Figure 3 As shown, in some embodiments, the outer shell 101 is a flexible PVC shell, and the inner liner 102 is made of PET plastic. More specifically, the PVC material has good flexibility and impact resistance, which can absorb external impact forces and reduce the risk of the inner liner 102 cracking during accidental drops. PET has good chemical stability to most cosmetic ingredients and will not react with the cosmetic liquid. The double-layer structure cosmetic bottle with flexible PVC as the outer shell 101 material and PET as the inner liner 102 material can not only provide sufficient physical protection and excellent barrier properties, but also attract consumers through the design of a differentiated appearance. At the same time, this material combination also meets the requirements of cost-effectiveness and environmental sustainability.

[0039] As Figure 3 As shown, in some embodiments, a sealing ring 309 is provided at the connection between the pump body 301 and the bottle cap 2. More specifically, the sealing ring 309 at the connection between the pump body 301 and the bottle cap 2 can effectively prevent liquid leakage, ensuring that the liquid in the cosmetic bottle will not seep out due to tilting, vibration or inversion. In addition, the sealing ring 309 prevents external air from entering the bottle, reducing the possibility of the cosmetic liquid being oxidized by contacting oxygen and extending the service life of the product.

[0040] As Figure 3 As shown, in some embodiments, the bottom of the straw 302 is configured with an inclined surface. More specifically, the design of the inclined surface ensures that there is an appropriate space between the bottom of the straw 302 and the bottom of the inner liner 102, enabling the straw 302 to be closer to the storage area of the cosmetic liquid without touching the bottom. Therefore, it can reduce the problems of blockage or contamination caused by impurities or sediments at the bottom being sucked into the straw 302, ensuring the smoothness of the extraction process.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-layered structure cosmetic bottle, characterized in that, Comprising: A bottle body (1), which is composed of an outer shell (101) and an inner liner (102), and the inner liner (102) is arranged inside the outer shell (101); The inner liner (102) is used for storing makeup liquid, and a gas storage cavity (103) is reserved between the outer wall of the inner liner (102) and the inner wall of the outer shell (101), and the inside of the gas storage cavity (103) is filled with a protective gas.

2. The double-layer structure cosmetic bottle according to claim 1, characterized in that, It further includes a diversion cavity (104), which is arranged in a circular array on the inner wall of the bottle mouth of the bottle body (1), the diversion cavity (104) is communicated with the gas storage cavity (103), and an air outlet (105) communicated with the diversion cavity (104) is constructed at the mouth edge of the bottle body (1).

3. A double-layered structure cosmetic bottle according to claim 1, characterized in that, It further includes a pressing pump (3), which is arranged on the bottle cap (2) and is used for sucking makeup liquid.

4. A double-layer structure cosmetic bottle according to claim 1, wherein, A circular seat (4) is fixedly arranged at the bottom of the bottle mouth of the bottle body (1), and a rubber ring (401) is embedded inside the circular seat (4), and the rubber ring (401) is adapted to the size of the bottle cap (2).

5. A double-layered structure cosmetic bottle according to claim 1, wherein, The protective gas is nitrogen.

6. The double-layer structure cosmetic bottle according to claim 1, characterized in that, The outer shell (101) is a flexible PVC shell, and the inner liner (102) is a PET plastic.

7. A double-layer structure cosmetic bottle according to claim 3, characterized in that, The pressing pump (3) includes a pump body (301) embedded in the middle of the bottle cap (2), a straw (302) is communicated with the bottom of the pump body (301), the connection part between the inside of the pump body (301) and the straw (302) is conical, and a first glass ball (303) is movably arranged, a central sliding plug (304) is slidably inserted through the middle of the inside of the pump body (301), a piston core (305) is connected to the bottom of the central sliding plug (304), a spring (306) is connected between the piston core (305) and the bottom cavity of the pump body (301), a limiting ring is fixedly arranged on the upper side inside the central sliding plug (304), and a second glass ball (307) is movably arranged above the limiting ring, and a discharge head (308) is communicated with the top of the central sliding plug (304).

8. A double-layered structure cosmetic bottle according to claim 7, characterized in that, A sealing ring (309) is arranged at the connection part between the pump body (301) and the bottle cap (2).

9. A double-layered structure cosmetic bottle according to claim 7, characterized in that, The bottom of the straw (302) is constructed with an inclined surface.

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