Replaceable cosmetic container and replaceable inner bottle

Abstract

The invention 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 invention, 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] The present invention relates to the field of cosmetic packaging materials, and particularly to a replaceable cosmetic container and a replaceable inner bottle. Background Art

[0002] Based on the plastic limit order in the European Union, various cosmetic containers currently used in the European Union have gradually changed to a structure of a long-term used outer bottle with a replaceable disposable inner bottle. The inner bottle is made of non-plastic materials to reduce the usage amount of plastics and at the same time reduce the cost for consumers to use the products.

[0003] There is no unified standard dimensional accuracy requirement for the models of the existing replaceable inner bottles. Therefore, multiple replaceable inner bottles with inconsistent tolerances will be used in the same outer bottle, which poses higher requirements for the mutually sealed structure between the inner and outer bottles, and some new sealing methods are needed to avoid the problem of emulsion leakage of cosmetics during use.

[0004] In the prior art, Chinese Patent CN119053268A discloses a refillable roll-on material container and its using method. As can be seen from its attached Figure 1 b (in this application Figure 1 ) and paragraph 0046 of the specification, in order to solve the problem of liquid leakage, it sets a double seal. 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), and the second barrier 102 is located at the connection between the main body and the refill container. For this sealing method, the first seal is affected by the outer diameter tolerance of the refill container, and when there is a slight error, this barrier fails. The second seal cannot solve the problem of the roll-on material leaking between the main body and the refill container. Therefore, a cosmetic container that pays more attention to the sealing performance is needed to adapt to the influence caused by the quality fluctuations of the replaceable inner bottle in different production environments. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a replaceable cosmetic container and a replaceable inner bottle, which solve the defects in the prior art that there is no unified standard for the replaceable inner bottle, resulting in large tolerances for products produced by different channels, and the replaceable inner bottle made of degradable materials has low dimensional accuracy, easily leading to large sealing fit errors.

[0006] The present invention is implemented as follows: A replaceable cosmetic container includes an outer bottle, a connector, and a lotion delivery device. The outer bottle is provided with a cavity. The connector is connected to the outer bottle. A lotion delivery channel is provided in the connector and the lotion delivery device is installed therein. The replaceable cosmetic container is used in cooperation with a replaceable inner bottle. The replaceable inner bottle has a liquid outlet section protruding towards the liquid outlet side of the lotion delivery channel, and the connector has a sealing seat that cooperates with the liquid outlet section. The sealing seat and the liquid outlet section cooperate 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 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, and the profile of the sealing section cooperates with the liquid outlet section and extends into the liquid outlet section, and the outer wall of the sealing section cooperates with the inner wall of the liquid outlet section to form the second sealing position.

[0007] A plurality of rings of annular sealing sheets are arranged on the outer periphery of the sealing section; at least one ring of the plurality of annular sealing sheets cooperates with the inner wall of the liquid outlet section.

[0008] The outer diameters of the plurality of rings of annular sealing sheets gradually increase from bottom to top.

[0009] An inner bottle sealing ring is also arranged between the annular sealing surface and the top surface of the liquid outlet section.

[0010] The top of the outer bottle is provided with an external thread portion, the bottom of the connecting member is provided with an internal thread portion, and a limiting cylinder body with a diameter slightly smaller than that of the internal thread portion is also arranged at the bottom of the connecting member. A certain gap is left between the limiting cylinder body and the internal thread portion to form a groove matching the thickness of the external thread portion. When the connecting member and the outer bottle are screwed tightly, the top of the external thread portion extends into the groove, and an outer bottle sealing ring is arranged at the root of the groove.

[0011] The emulsion delivery device is a pressing pump, and the suction pipeline of the pressing pump passes through the sealing seat and extends into the replacement inner bottle.

[0012] It further includes a bottle cap. The emulsion delivery device is a ball-type delivery device. A part of the ball is located in the emulsion delivery channel of the connecting member, and the other part is exposed to form a coating end. The bottle cap is detachably installed on the connecting member to cover the coating end.

[0013] A replacement inner bottle, the replacement inner bottle includes a main body section and a liquid outlet section. The main body section has a cavity for accommodating the emulsion. The main body section retracts inward and protrudes toward the liquid outlet side of the emulsion delivery channel to form the liquid outlet section; an external thread is arranged on the outer wall of the liquid outlet section, and a plurality of sealing surfaces matching the annular sealing sheets are arranged on the inner wall of the liquid outlet section.

[0014] The replacement inner bottle and its external thread are an integrally formed integral structure.

[0015] The replacement inner bottle is made of biodegradable material.

[0016] The replaceable cosmetic container of the present invention is provided with a sealing seat that cooperates doubly 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 provided at other locations, improving the reliability of the seal. Among them, the outlet diameter of the replaceable inner bottle generally has poor dimensional accuracy, and the double-sealing position of the sealing seat can meet the sealing requirements of replaceable inner bottles with different tolerances, having broad popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the sealing barrier position in the background art; Figure 2 is an exploded view of the components of the replaceable cosmetic container of the present invention; Figure 3 is a cross-sectional view of the replaceable cosmetic container of the present invention; Figure 4 is a cross-sectional view of the sealing seat in the present invention; Figure 5 is a cross-sectional view of the connecting member in the present invention; Figure 6 is a schematic diagram of an embodiment when the emulsion delivery device is a ball type; Figure 7 is a cross-sectional view of the replaceable inner bottle in the present invention; In the figures: 1 outer bottle, 2 replaceable inner bottle, 3 connecting member, 4 emulsion delivery device, 5 bottle cap, 11 external thread portion, 12 outer bottle sealing ring, 21 liquid outlet section, 22 external thread, 23 sealing surface, 24 main body section, 30 sealing seat, 31 sealing section, 32 annular sealing surface, 33 annular sealing piece, 34 inner bottle sealing ring, 35 internal thread portion, 36 limiting cylinder body, 37 sealing tooth ring, 100 first barrier, 102 second barrier. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present invention will be further described below in conjunction with the drawings and embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content described in the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0019] As Figure 2 , 3As shown, a replaceable cosmetic container includes an outer bottle 1, a connecting member 3, and a lotion delivery device 4. The outer bottle 1 is provided with a cavity. The connecting member 3 is connected to the outer bottle 1. A lotion delivery channel is provided inside the connecting member 3 and the lotion delivery device 4 is installed therein. The replaceable cosmetic container is used in cooperation with a replaceable inner bottle 2. The replaceable inner bottle 2 has a liquid outlet section 21 that protrudes toward the liquid outlet side of the lotion delivery channel. The connecting member 3 has a sealing seat 30 that cooperates with the liquid outlet section 21. The sealing seat 30 and the liquid outlet section 21 cooperate 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.

[0020] In the present invention, in order to increase a sealing surface to improve the sealing effect, 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 cooperates with the inner wall of the liquid outlet section 21 to adapt to the errors caused by different tolerances. Considering the practicality during installation, the annular sealing sheets 33 have a certain elasticity, which is formed by the structure or material of the annular sealing sheets 33 themselves to meet the assembly requirements.

[0021] As Figure 4 shown, in the present invention, in order to better cooperate with the dimensional errors of various replaceable inner bottles 2 under different production conditions, the outer diameters of the plurality of annular sealing sheets 33 gradually increase from bottom to top, so that finally one annular sealing sheet 33 can achieve the best cooperation with the inner wall of the liquid outlet section 21, improving the sealing reliability. In addition, in this embodiment, in order to further improve the sealing performance between the contact surfaces of the replaceable inner bottle 2 and the connecting member 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 the effect of multiple seals.

[0022] As Figure 5As shown, in the present invention, an external thread portion 11 is provided at the top of the outer bottle 1, and an internal thread portion 35 is provided at the bottom of the connecting member 3. A limiting cylinder body 36 with a diameter slightly smaller than that of the internal thread portion 35 is further provided at the bottom of the connecting member 3. A certain gap is left between the limiting cylinder body 36 and the internal thread portion 35 to form a groove that matches the thickness of the external thread portion 11. When the connecting member 3 and the outer bottle 1 are tightened by threads, the top of the external thread portion 11 extends into the groove, and an outer bottle sealing ring 12 is provided at the root of the groove, so that an external sealing structure is formed between the outer bottle 1 and the connecting member 3; even if there is a leakage in the sealing between the connecting member 3 and the replaceable inner bottle 2, the leaked cosmetic emulsion will not leak to the outside of the cosmetic and will not affect the use environment.

[0023] In addition, in order to improve the sealing performance of the liquid outlet side of the emulsion delivery channel, a sealing tooth ring 37 is further provided on the contact surface between the outer shell of the connecting member 3 and the sealing seat 30 to form an outlet sealing position.

[0024] In this embodiment, as shown in Figure 2 , 3 the emulsion delivery device 4 is a pressing pump, and the suction pipeline of the pressing pump passes through the sealing seat 30 and extends into the replaceable inner bottle 2.

[0025] In another embodiment, as shown in Figure 6 the replaceable cosmetic further includes a bottle cap 5. The emulsion delivery device 4 is a ball-type delivery device. A part of the ball is located in the emulsion delivery channel of the connecting member 3, and the other part is exposed to form a coating end. The bottle cap 5 is detachably installed on the connecting member 3 to cover the coating end.

[0026] As shown in Figure 7 is a replaceable inner bottle used in combination with the replaceable cosmetic container in the present invention. The replaceable 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 the emulsion. In the use state, the replaceable inner bottle 2 is placed in the cavity of the outer bottle 1; the main body section 24 is inwardly contracted and protruded toward the liquid outlet side of the emulsion delivery channel to form the liquid outlet section 21; an external thread 22 is provided on the outer wall of the liquid outlet section 21, and several sealing surfaces 23 that cooperate with the annular sealing piece 33 are provided on the inner wall of the liquid outlet section 21.

[0027] In the present invention, the external thread 22 of the replaceable inner bottle 2 can also seal and cover the opening of the liquid outlet section 21 with a screw cap to avoid external leakage when it is not installed in the outer bottle 1 during transportation and storage, etc., improving the sealing performance of the replaceable inner bottle 2 in the non-use state, facilitating transportation and increasing the validity period during storage; In this embodiment, preferably, in order not to add additional components and reduce production costs, the replaceable inner bottle 2 and its external thread 22 are an integrally formed integral structure.

[0028] Considering environmental protection factors, the replacement inner bottle 2 is made of degradable materials, and the degradable materials are preferably paper materials made of wood fiber, bamboo fiber, chitin fiber or polylactic acid fiber.

Claims

1. A replaceable cosmetic container, comprising an outer bottle (1), a connecting member (3) and a lotion delivery device (4). The outer bottle (1) is provided with a cavity. The connecting member (3) is connected to the outer bottle (1). A lotion delivery channel is arranged in the connecting member (3), and the lotion delivery device (4) is installed therein. It is characterized in that: The replaceable cosmetic container is used in cooperation 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 emulsion delivery channel. The connecting member (3) has a sealing seat (30) that cooperates with the liquid outlet section (21). The sealing seat (30) and the liquid outlet section (21) cooperate 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 according to claim 1, wherein: 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) cooperates with the inner wall of the liquid outlet section (21).

3. The replaceable cosmetic container according to claim 2, wherein: The outer diameters of the plurality of annular sealing sheets (33) gradually increase from bottom to top.

4. The replaceable cosmetic container according to claim 2, wherein: An inner bottle sealing ring (34) is further provided between the annular sealing surface (32) and the top surface of the liquid outlet section (21).

5. The replaceable cosmetic container according to any one of claims 1 to 4, characterized in that: The top of the outer bottle (1) is provided with an external thread portion (11). The bottom of the connecting member (3) is provided with an internal thread portion (35). A limiting cylinder body (36) with a diameter slightly smaller than that of the internal thread portion (35) is further provided at the bottom of the connecting member (3). A groove matching the thickness of the external thread portion (11) is formed by leaving a certain gap between the limiting cylinder body (36) and the internal thread portion (35). When the connecting member (3) and the outer bottle (1) are screwed tightly, the top of the external thread portion (11) extends into the groove, and an outer bottle sealing ring (12) is provided at the root of the groove.

6. The replaceable cosmetic container according to claim 5, characterized in that: The emulsion delivery device (4) is a pressing pump. The suction pipeline of the pressing pump passes through the sealing seat (30) and extends into the replaceable inner bottle (2).

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

8. A replacement inner bottle for use in combination with the replaceable cosmetic container according to any one of claims 1-7, characterized in that: Regarding the replaceable inner bottle (2), the replaceable inner bottle (2) includes a main body section (24) and a liquid outlet section (21). The main body section (24) has a cavity for accommodating the emulsion. The main body section (24) is recessed and protrudes towards the liquid outlet side of the emulsion delivery channel to form the liquid outlet section (21). An external thread (22) is provided on the outer wall of the liquid outlet section (21), and a plurality of sealing surfaces (23) matching the annular sealing sheets (33) are provided on the inner wall of the liquid outlet section (21).

9. The replacement inner bottle according to claim 8, characterized in that: The replaceable inner bottle (2) and its external thread (22) are an integrally formed integral structure.

10. The replacement inner bottle according to claim 8, wherein: The replaceable inner bottle (2) is made of biodegradable material.

Images