Inner plug structure for cosmetic bottle

Abstract

The utility model discloses an inner plug structure for a cosmetic bottle, which comprises a liquid guide inner plug capable of being mounted at the top of the cosmetic bottle, the liquid guide inner plug can be matched with a silica gel sealing column head in a bottle cap of the cosmetic bottle to form a sealing structure, the liquid guide inner plug is formed by combining a plug cap and a sealing plug column, and the plug cap is of a conical structure; a guiding channel is formed in the plug cap, a connecting channel is formed in the middle of the inner side of the sealing plug column, a cross-shaped liquid blocking part is arranged at the bottom of the inner side of the sealing plug column, a first protruding sealing ring and a second protruding sealing ring are sequentially arranged on the outer side of the sealing plug column from top to bottom, and the middle of the sealing plug column is of a cylindrical structure. The lower portion of the sealing plug column is of a conical structure. The inner liquid guide plug is of a sectional cavity structure, so that the inner side wall of the inner liquid guide plug and the elastic silica gel sealing column head can form a good sealing structure, and a solution is effectively prevented from overflowing from the cosmetic bottle.

Description

Technical Field

[0001] This utility model relates to cosmetic bottle devices, specifically to an inner stopper structure for cosmetic bottles. Background Technology

[0002] Traditional glass cosmetic bottles use plastic inner stoppers at the bottle opening to improve sealing. These plastic stoppers offer good elasticity and wear resistance, ensuring a good seal even after opening. However, existing silicone sealing plugs are difficult to align with the inner hole of the inner stopper, resulting in a poor seal. For some liquid cosmetics, the low viscosity of the solution leads to excessive flow during pouring, causing splashing and waste. Making the bottle opening too small can easily cause clogging or hinder flow. Therefore, there is a pressing need for a liquid-guiding inner stopper with a stable and uniform flow rate. Utility Model Content

[0003] To address the aforementioned problems, this utility model aims to provide a liquid-conducting inner plug that offers excellent sealing and stable, uniform flow rate.

[0004] To achieve this technical objective, the present invention provides an inner stopper structure for cosmetic bottles, comprising a liquid-guiding inner stopper that can be installed on the top of the cosmetic bottle. The liquid-guiding inner stopper can be matched with a silicone sealing post inside the bottle cap of the cosmetic bottle to form a sealing structure. The liquid-guiding inner stopper is composed of a stopper cap and a sealing post, and the stopper cap has a conical structure.

[0005] The cap has a guide channel, the inner middle of the sealing plug has a connecting channel, the bottom of the inner side of the sealing plug has a cross-shaped liquid-blocking part, the outer side of the sealing plug has a raised first sealing ring and a second sealing ring arranged from top to bottom, the middle part of the sealing plug has a cylindrical structure, and the lower part of the sealing plug has a conical structure.

[0006] Preferably, the cross-shaped liquid-blocking part is composed of a central disc and connecting pieces. Four connecting pieces are symmetrically arranged around the central disc. The distance between the central disc and the inner wall of the connection channel of the sealing plug is 2±0.15mm.

[0007] Preferably, the guide channel has a trumpet-shaped opening structure, and the minimum inner diameter of the guide channel is greater than the maximum inner diameter of the connecting channel.

[0008] Preferably, the connecting channel is composed of a first cavity and a second cavity, with the first cavity located between the guide channel and the second cavity. The inner diameter of the first cavity is larger than the inner diameter of the second cavity, and both the first cavity and the second cavity are cylindrical structures.

[0009] Preferably, the plug is composed of a first cone and a second cone, the second cone being located between the first cone and the sealing plug, and the taper of the first cone being smaller than that of the second cone.

[0010] Preferably, the guide channel is composed of a first conical cavity and a second conical cavity, with the second conical cavity located between the guide channel and the first conical cavity.

[0011] Preferably, the thickness of the first sealing ring is 0.66±0.15mm, the thickness of the second sealing ring is 0.66±0.15mm, and the distance between the first sealing ring and the second sealing ring is greater than or equal to 2mm.

[0012] The beneficial effects of this utility model are as follows: the liquid-conducting inner plug of this application adopts a segmented cavity structure, which allows the inner wall of the liquid-conducting inner plug to form a good sealing structure with the elastic silicone sealing column, effectively preventing the solution from overflowing from the cosmetic bottle; at the same time, a cross-shaped liquid-blocking part is provided at the bottom of the inner side of the liquid-conducting inner plug, which can effectively prevent the aqueous solution from splashing out due to excessive flow rate when poured, and the liquid discharge of this structure is stable; at the same time, the plug cap adopts a two-stage conical structure, which makes the structure more stable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an existing inner plug structure to which this utility model can be applied;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4 This is a top view of the present invention;

[0017] Figure 5 This is a perspective view of the present utility model;

[0018] Figure 6 This is a perspective view of the present invention when it is inverted. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. To provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; these embodiments are only some embodiments of the present invention; other embodiments obtained based on this application without creative effort are all within the scope of protection of the present invention.

[0020] In the following embodiments, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," "top / bottom," etc., are all based on the orientation or positional relationship shown in the accompanying drawings and are only for the purpose of clearly describing this embodiment. They do not indicate or imply that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this application. At the same time, the terms "first" and "second" in the embodiments are only used for descriptive purposes and do not represent an indication or implication of relative importance.

[0021] like Figure 1-6 As shown, a specific embodiment of this utility model is an inner plug structure for a cosmetic bottle, including a liquid-guiding inner plug 1 that can be installed on the top of the cosmetic bottle 2. The liquid-guiding inner plug 1 can match the silicone sealing post 4 inside the cap 3 of the cosmetic bottle 2 to form a sealing structure. The liquid-guiding inner plug 1 is composed of a plug cap 101 and a sealing post 102. The plug cap 101 has a conical structure.

[0022] The cap 101 has a guide channel inside, the sealing plug 102 has a connecting channel in the middle of its inner side, the bottom of the inner side of the sealing plug 102 has a cross-shaped liquid blocking part 103, and the outer side of the sealing plug 102 has a raised first sealing ring 104 and a second sealing ring 105 arranged sequentially from top to bottom. The middle part of the sealing plug 102 has a cylindrical structure, and the lower part of the sealing plug 102 has a conical structure.

[0023] In order to effectively control the liquid flow rate and avoid splashing, the cross-shaped liquid blocking part 103 is composed of a central circular piece 106 and connecting pieces 107. Four connecting pieces 107 are symmetrically arranged around the central circular piece 106. The distance between the central circular piece 106 and the inner wall of the connection channel of the sealing plug 102 is 2±0.15mm.

[0024] To improve sealing performance, the connecting channel is composed of a first cavity 108 and a second cavity 109. The first cavity 108 is located between the second conical portion 111 of the guide channel and the second cavity 109. The inner diameter of the first cavity 108 is larger than the inner diameter of the second cavity 109. Both the first cavity 108 and the second cavity 109 are cylindrical structures. The sidewall of the silicone sealing head can also form a good sealing structure with the first cavity.

[0025] To better guide the silicone sealing head into the connecting channel to form a sealing structure, the plug cap 101 is composed of a first conical portion 110 and a second conical portion 111. The second conical portion 111 is located between the first conical portion 110 and the sealing plug 102, and the taper of the first conical portion 110 is smaller than the taper of the second conical portion 111. The guiding channel has a funnel-shaped opening structure, and the minimum inner diameter of the guiding channel is larger than the maximum inner diameter of the connecting channel. The guiding channel is composed of a first conical cavity 112 and a second conical cavity 113, with the second conical cavity 112 located between the first cavity 108 and the first conical cavity 113 of the guiding channel. The first conical cavity serves as a guide, allowing the silicone sealing head to enter the connecting channel more easily.

[0026] To improve sealing performance, the thickness of the first sealing ring 104 is 0.66±0.15mm, the thickness of the second sealing ring 105 is 0.66±0.15mm, and the distance between the first sealing ring 104 and the second sealing ring 105 is greater than or equal to 2mm.

[0027] The liquid-conducting inner plug of this application adopts a segmented cavity structure, which allows the inner wall of the liquid-conducting inner plug to form a good sealing structure with the elastic silicone sealing head, effectively preventing the solution from overflowing from the cosmetic bottle; at the same time, a cross-shaped liquid-blocking part is provided at the bottom of the inner side of the liquid-conducting inner plug, which can effectively prevent the water solution from splashing out due to excessive flow rate when poured, and the liquid discharge is stable; in addition, the plug cap adopts a two-stage conical structure, which makes the structure more stable.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. An inner stopper structure for a cosmetic bottle, comprising a liquid-guiding inner stopper that can be installed on the top of the cosmetic bottle, the liquid-guiding inner stopper being compatible with a silicone sealing post inside the bottle cap to form a sealing structure, characterized in that: The fluid-conducting inner plug is composed of a plug cap and a sealing plug, and the plug cap has a conical structure; The cap has a guide channel, the inner middle of the sealing plug has a connecting channel, the bottom of the inner side of the sealing plug has a cross-shaped liquid-blocking part, the outer side of the sealing plug has a raised first sealing ring and a second sealing ring arranged from top to bottom, the middle part of the sealing plug has a cylindrical structure, and the lower part of the sealing plug has a conical structure.

2. The inner stopper structure for a cosmetic bottle according to claim 1, characterized in that: The cross-shaped liquid-blocking part is composed of a central disc and connecting pieces. Four connecting pieces are symmetrically arranged around the central disc. The distance between the central disc and the inner wall of the connection channel of the sealing plug is 2±0.15mm.

3. The inner stopper structure for a cosmetic bottle according to claim 1, characterized in that: The guide channel has a trumpet-shaped opening structure, and the minimum inner diameter of the guide channel is greater than the maximum inner diameter of the connecting channel.

4. The inner stopper structure for a cosmetic bottle according to claim 1, characterized in that: The connecting channel is composed of a first cavity and a second cavity. The first cavity is located between the guide channel and the second cavity. The inner diameter of the first cavity is larger than the inner diameter of the second cavity. Both the first cavity and the second cavity are cylindrical structures.

5. The inner stopper structure for a cosmetic bottle according to claim 1, characterized in that: The plug is composed of a first cone and a second cone, with the second cone located between the first cone and the sealing plug, and the taper of the first cone being smaller than that of the second cone.

6. The inner stopper structure for a cosmetic bottle according to claim 3, characterized in that: The guide channel is composed of a first conical cavity and a second conical cavity, with the second conical cavity located between the guide channel and the first conical cavity.

7. The inner stopper structure for a cosmetic bottle according to claim 1, characterized in that: The thickness of the first sealing ring is 0.66±0.15mm, the thickness of the second sealing ring is 0.66±0.15mm, and the distance between the first sealing ring and the second sealing ring is greater than or equal to 2mm.

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