Replaceable cosmetic container and replaceable inner bottle

Abstract

The utility model relates to the field of cosmetic packing materials, in particular to a replaceable cosmetic container and a replaceable inner bottle. A replaceable cosmetic container comprises an outer bottle, a connecting piece and a lotion conveying device, a replaceable inner bottle is provided with a lotion outlet section, and the connecting piece is provided with a sealing seat matched with the lotion outlet section; the sealing seat is matched with the liquid outlet section to form a first sealing position and a second sealing position, the sealing seat is provided with an annular sealing surface, and the annular sealing surface is matched with the top surface of the liquid outlet section to form the first sealing position; a protruding sealing section is arranged on the annular sealing face, and the outer wall of the sealing section is matched with the inner wall of the liquid outlet section to form a second sealing position. According to the utility model, the sealing seat is arranged, and the sealing seat forms a double-sealing position by replacing the liquid outlet section of the inner bottle, so that the sealing reliability is improved; wherein the outlet caliber of the replacement inner bottle is generally poor in dimensional accuracy, the double sealing positions of the sealing seat can meet the sealing requirements of the replacement inner bottles with different tolerances, and the sealing seat has wide popularization and application values.

Description

Technical Field

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

[0002] Based on the EU's plastic ban, the various cosmetic containers currently used in the EU have gradually changed to a structure of a long-lasting outer bottle with a replaceable disposable inner bottle. The inner bottle is made of non-plastic products to reduce the amount of plastic used and at the same time reduce the cost of using the products for consumers.

[0003] The existing models of replaceable inner bottles do not have uniform standard size and precision requirements. As a result, multiple replaceable inner bottles with inconsistent tolerances are used in the same outer bottle. This places higher demands on the sealing structure between the inner and outer bottles, requiring some new sealing methods to avoid the problem of lotion leakage during use.

[0004] Prior art, Chinese patent CN119053268A discloses a refillable roller material container and its usage method, see its attached drawings (this application). Figure 1 As can be seen from the description and paragraph 0046 of the instruction manual, a double seal is used to solve the leakage problem. The first barrier 100 is formed between the inner surface of the main body and the outer surface of the refill container (near the ball bearing), and the second barrier 102 is located at the connection between the main body and the refill container. With this sealing method, the first seal is affected by the tolerance of the outer diameter of the refill container. When there is a slight error, the barrier fails. The second seal cannot solve the problem of the smearing material leaking between the main body and the refill container. Therefore, a cosmetic container that pays more attention to sealing performance is needed to adapt to the impact of quality fluctuations caused by the replacement inner bottle under different production environments. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a replaceable cosmetic container and a replacement inner bottle, which solves the defects of the prior art, such as the lack of a unified standard for replacement inner bottles, which leads to large tolerances of products produced in different channels, and the low dimensional accuracy of replacement inner bottles made of biodegradable materials, which easily leads to large sealing and fitting errors.

[0006] This utility model is implemented as follows: a replaceable cosmetic container includes an outer bottle, a connector, and a lotion delivery device. The outer bottle has a cavity, the connector is connected to the outer bottle, the connector has a lotion delivery channel and the lotion delivery device is installed inside the connector, the replaceable cosmetic container is used in conjunction with a replaceable inner bottle, the replaceable inner bottle has a dispensing section protruding towards the dispensing side of the lotion delivery channel, and the connector has a sealing seat that cooperates with the dispensing section;

[0007] The sealing seat cooperates with the liquid outlet section to form a first sealing position and a second sealing position. The sealing seat is provided with an annular sealing surface, which cooperates with the top surface of the liquid outlet section to form the first sealing position. A protruding sealing section is provided on the annular sealing surface. The profile of the sealing section cooperates with the liquid outlet section and extends into the liquid outlet section. The outer wall of the sealing section cooperates with the inner wall of the liquid outlet section to form the second sealing position.

[0008] The outer periphery of the sealing section is provided with several annular sealing plates; at least one of the several annular sealing plates is in contact with the inner wall of the liquid outlet section.

[0009] The outer diameter of the annular sealing strip gradually increases from bottom to top.

[0010] An inner bottle sealing ring is also provided between the annular sealing surface and the top surface of the liquid outlet section.

[0011] The top of the outer bottle is provided with an external thread, and the bottom of the connector is provided with an internal thread. The bottom of the connector is also provided with a limiting cylinder with a diameter slightly smaller than that of the internal thread. A certain gap is left between the limiting cylinder and the internal thread to form a groove that matches the thickness of the external thread. When the connector and the outer bottle are tightened by the threads, the top of the external thread extends into the groove, and the root of the groove is provided with an outer bottle sealing ring.

[0012] The emulsion delivery device is a press pump, and the suction line of the press pump extends through the sealing seat into the replacement inner bottle.

[0013] It also includes a bottle cap. The emulsion delivery device is a ball-type delivery device. One part of the ball is located in the emulsion delivery channel of the connector, and the other part is exposed to form a coating end. The bottle cap is detachably installed on the connector to cover the coating end.

[0014] A replacement inner bottle, comprising a main body section and a liquid outlet section, wherein the main body section has a cavity for containing emulsion, and the main body section is recessed and protruded towards the liquid outlet side of the emulsion delivery channel to form the liquid outlet section; the outer wall of the liquid outlet section is provided with external threads, and the inner wall of the liquid outlet section is provided with several sealing surfaces that cooperate with annular sealing plates.

[0015] The replacement inner bottle and its external threads are integrally molded.

[0016] The replacement inner bottle is made of biodegradable material.

[0017] This utility model of a replaceable cosmetic container is equipped with a sealing seat that doubles with the replaceable inner bottle. The sealing seat utilizes the liquid outlet section of the replaceable inner bottle to form a double sealing position, and multiple seals are set in other places to improve the reliability of the seal. In particular, the outlet diameter of the replaceable inner bottle is usually of poor dimensional accuracy. The double sealing position of the sealing seat can meet the sealing requirements of replaceable inner bottles with different tolerances, and has broad application value. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the location of the sealing barrier in the background art;

[0019] Figure 2 This is an exploded view of the components of the replaceable cosmetic container of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the replaceable cosmetic container of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the sealing seat in this utility model;

[0022] Figure 5 This is a cross-sectional schematic diagram of the connector in this utility model;

[0023] Figure 6 This is a schematic diagram of an embodiment where the emulsion delivery device is a ball bearing type.

[0024] Figure 7 This is a cross-sectional schematic diagram of the replacement inner bottle in this utility model;

[0025] In the diagram: 1 Outer bottle, 2 Replacement inner bottle, 3 Connector, 4 Emulsion delivery device, 5 Bottle cap, 11 External thread, 12 Outer bottle sealing ring, 21 Discharge section, 22 External thread, 23 Sealing surface, 24 Main body section, 30 Sealing seat, 31 Sealing section, 32 Annular sealing surface, 33 Annular sealing sheet, 34 Inner bottle sealing ring, 35 Internal thread, 36 Limiting cylinder, 37 Sealing toothed ring, 100 First barrier, 102 Second barrier. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the description of the present invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0027] like Figure 2 , 3As shown, a replaceable cosmetic container includes an outer bottle 1, a connector 3, and a lotion delivery device 4. The outer bottle 1 has a cavity, the connector 3 is connected to the outer bottle 1, the connector 3 has a lotion delivery channel and the lotion delivery device 4 is installed inside the connector 3, the replaceable cosmetic container is used in conjunction with a replaceable inner bottle 2, the replaceable inner bottle 2 has a liquid outlet section 21 protruding towards the liquid outlet side of the lotion delivery channel, and the connector 3 has a sealing seat 30 that cooperates with the liquid outlet section 21.

[0028] The sealing seat 30 cooperates with the liquid outlet section 21 to form a first sealing position and a second sealing position. The sealing seat 30 is provided with an annular sealing surface 32, which cooperates with the top surface of the liquid outlet section 21 to form the first sealing position. A protruding sealing section 31 is provided on the annular sealing surface 32. The profile of the sealing section 31 cooperates with the liquid outlet section 21 and extends into the liquid outlet section 21. The outer wall of the sealing section 31 cooperates with the inner wall of the liquid outlet section 21 to form the second sealing position.

[0029] In this invention, to increase the sealing effect by adding a sealing surface, a plurality of annular sealing sheets 33 are provided on the outer periphery of the sealing section 31; at least one of the plurality of annular sealing sheets 33 mates with the inner wall of the liquid outlet section 21 to accommodate errors caused by different tolerances; considering the practicality during installation, the annular sealing sheet 33 has a certain elasticity, which is formed by the structure or material of the annular sealing sheet 33 itself to meet the assembly requirements.

[0030] like Figure 4 As shown, in this utility model, in order to better accommodate the size errors of various replacement inner bottles 2 under different production conditions, the outer diameter of the several ring-shaped sealing pieces 33 gradually increases from bottom to top, so that the final ring-shaped sealing piece 33 can achieve the best fit with the inner wall of the liquid outlet section 21, thereby improving the sealing reliability.

[0031] In addition, in this embodiment, in order to further improve the sealing between the contact surfaces of the replacement inner bottle 2 and the connector 3, an inner bottle sealing ring 34 is provided between the annular sealing surface 32 and the top of the liquid outlet section 21 to achieve a multi-seal effect.

[0032] like Figure 5As shown, in this utility model, the top of the outer bottle 1 is provided with an external threaded portion 11, and the bottom of the connector 3 is provided with an internal threaded portion 35. The bottom of the connector 3 is also provided with a limiting cylinder 36 with a diameter slightly smaller than that of the internal threaded portion 35. A certain gap is left between the limiting cylinder 36 and the internal threaded portion 35 to form a groove that matches the thickness of the external threaded portion 11. When the connector 3 and the outer bottle 1 are tightened by the threads, the top of the external threaded portion 11 extends into the groove. The root of the groove is provided with an outer bottle sealing ring 12, so that the outer bottle 1 and the connector 3 have an external sealing structure. Even if the seal between the connector 3 and the replacement inner bottle 2 leaks, the leaked cosmetic lotion will not leak to the outside of the cosmetic and will not affect the use environment.

[0033] In addition, in order to improve the sealing performance of the liquid outlet side of the emulsion delivery channel, a sealing toothed ring 37 is provided on the contact surface between the outer shell of the connector 3 and the sealing seat 30 to form an outlet sealing position.

[0034] In this embodiment, as Figure 2 , 3 As shown, the emulsion delivery device 4 is a press pump, and the suction pipe of the press pump extends through the sealing seat 30 into the replacement inner bottle 2.

[0035] In another embodiment, such as Figure 6 As shown, the replaceable cosmetic also includes a bottle cap 5. The lotion delivery device 4 is a ball-type delivery device. One part of the ball is located in the lotion delivery channel of the connector 3, and the other part is exposed to form a coating end. The bottle cap 5 is detachably installed on the connector 3 to cover the coating end.

[0036] like Figure 7 The diagram shows a replacement inner bottle 2 used in conjunction with a replaceable cosmetic container according to this invention. The replacement inner bottle 2 includes a main body section 24 and a liquid outlet section 21. The main body section 24 has a cavity for containing emulsion. In use, the replacement inner bottle 2 is placed inside the cavity of the outer bottle 1. The main body section 24 retracts inward and protrudes towards the liquid outlet side of the emulsion delivery channel to form the liquid outlet section 21. The outer wall of the liquid outlet section 21 is provided with external threads 22, and the inner wall of the liquid outlet section 21 is provided with several sealing surfaces 23 that cooperate with annular sealing plates 33.

[0037] In this utility model, the external thread 22 of the replacement inner bottle 2 can also ensure that when it is not used by the outer bottle 1 during transportation and storage, the opening of the liquid outlet section 21 is sealed by the screw cap to prevent leakage, thereby improving the sealing performance of the replacement inner bottle 2 in the non-use state, so as to facilitate transportation and extend the shelf life during storage.

[0038] In this embodiment, as a preferred option, in order to avoid adding extra parts and reduce production costs, the replacement inner bottle 2 and its external thread 22 are integrally formed.

[0039] Considering environmental factors, the replacement inner bottle 2 is made of biodegradable material, preferably a paper material made of wood fiber, bamboo fiber, chitin fiber or polylactic acid fiber.

Claims

1. A replaceable cosmetic container, comprising an outer bottle (1), a connector (3), and a lotion delivery device (4), wherein the outer bottle (1) is provided with a cavity, the connector (3) is connected to the outer bottle (1), and the connector (3) is provided with a lotion delivery channel and the lotion delivery device (4) is installed thereon, characterized in that: The replaceable cosmetic container is used in conjunction with the replaceable inner bottle (2), the replaceable inner bottle (2) has a liquid outlet section (21) protruding to the liquid outlet side of the emulsion delivery channel, and the connector (3) has a sealing seat (30) that cooperates with the liquid outlet section (21). The sealing seat (30) cooperates with the liquid outlet section (21) to form a first sealing position and a second sealing position. The sealing seat (30) is provided with an annular sealing surface (32). The annular sealing surface (32) cooperates with the top surface of the liquid outlet section (21) to form the first sealing position. A protruding sealing section (31) is provided on the annular sealing surface (32). The profile of the sealing section (31) cooperates with the liquid outlet section (21) and extends into the liquid outlet section (21). The outer wall of the sealing section (31) cooperates with the inner wall of the liquid outlet section (21) to form the second sealing position.

2. The replaceable cosmetic container as described in claim 1, characterized in that: The sealing section (31) is provided with several annular sealing sheets (33) on its outer periphery; at least one of the several annular sealing sheets (33) is in contact with the inner wall of the liquid outlet section (21).

3. The replaceable cosmetic container as described in claim 2, characterized in that: The outer diameter of the annular sealing strip (33) gradually increases from bottom to top.

4. The replaceable cosmetic container as described in claim 2, characterized in that: An inner bottle sealing ring (34) is also provided between the annular sealing surface (32) and the top surface of the liquid outlet section (21).

5. The replaceable cosmetic container as described in any one of claims 1 to 4, characterized in that: The top of the outer bottle (1) is provided with an external thread (11), the bottom of the connector (3) is provided with an internal thread (35), and the bottom of the connector (3) is also provided with a limiting cylinder (36) with a diameter slightly smaller than that of the internal thread (35). A certain gap is left between the limiting cylinder (36) and the internal thread (35) to form a groove that matches the thickness of the external thread (11). When the connector (3) and the outer bottle (1) are tightened by the thread, the top of the external thread (11) extends into the groove, and the root of the groove is provided with an outer bottle sealing ring (12).

6. The replaceable cosmetic container as described in claim 5, characterized in that: The emulsion delivery device (4) is a press pump, and the suction line of the press pump extends through the sealing seat (30) into the replacement inner bottle (2).

7. The replaceable cosmetic container as described in claim 5, characterized in that: It also includes a bottle cap (5), the emulsion delivery device (4) is a ball-type delivery device, one part of the ball is in the emulsion delivery channel of the connector (3), and the other part is exposed to form a coating end. The bottle cap (5) is detachably installed on the connector (3) to cover the coating end.

8. A replacement inner bottle for use with any one of the replaceable cosmetic containers according to claims 1-7, characterized in that: The replacement inner bottle (2) includes a main body section (24) and a liquid outlet section (21). The main body section (24) has a cavity that can accommodate emulsion. The main body section (24) is recessed and protruded towards the liquid outlet side of the emulsion delivery channel to form the liquid outlet section (21). The outer wall of the liquid outlet section (21) is provided with an external thread (22), and the inner wall of the liquid outlet section (21) is provided with several sealing surfaces (23) that cooperate with the annular sealing sheet (33).

9. The replacement inner bottle as described in claim 8, characterized in that: The replacement inner bottle (2) and its external thread (22) are integrally formed.

10. The replacement inner bottle as described in claim 8, characterized in that: The replacement inner bottle (2) is made of biodegradable material.

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