A packaging bottle with sealing function

By using the tight interlocking of internal and external threads, the multi-layer sealing structure of the sealing airbag and sealing plug, and the design of the pull ring structure, the problem of insufficient sealing performance of traditional packaging bottles is solved, achieving a highly efficient sealing effect and a child-proof opening function, ensuring the quality and safety of the mouthwash.

CN224336178UActive Publication Date: 2026-06-09WUXI DONGCHEN TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI DONGCHEN TECHNOLOGY CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional packaging bottles have insufficient sealing performance, and the seal is easily loosened due to changes in temperature and humidity and vibration, which affects the quality and safety of mouthwash. At the same time, they lack child-proof design, which poses a health risk.

Method used

It employs a tight interlocking of internal and external threads, a multi-layered sealing structure consisting of a sealing airbag and a sealing plug, and a pull ring design to form a three-layer sealing barrier, preventing external substances from entering and children from accidentally opening it.

Benefits of technology

It effectively prevents the intrusion of external air, moisture and microorganisms, maintains the quality and safety of the mouthwash, prevents children from accidentally drinking it, and improves the sealing performance during storage and transportation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224336178U_ABST
    Figure CN224336178U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of packing bottle with sealing function, it is related to packing technical field, comprising: bottle body, the bottle cap of bottle body screw connection and the sealing structure being set in the bottle body;The bottle body has bottle mouth, the outer thread is equipped on the bottle mouth, the outer thread is connected with the bottle cap with inner thread thread;Its bottom end is equipped with thickened base;The bottle mouth inner wall is equipped with support along, the sealing structure is equipped on the support along;The utility model is through the thread close bite of the inner thread of bottle cap and the outer thread of bottle mouth, effectively prevent external air, moisture etc. Into bottle, formed first layer of sealing defense line;Second layer of sealing defense line is formed by the setting of sealing air bag and sealing ring, form more close sealing, third layer of sealing defense line is formed by pull ring structure;Through the setting of above-mentioned three layers of sealing defense line, the sealing performance of bottle body is improved, ensure that the mouthwash wine of bottle is not affected by external factors in storage and transportation process.
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Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to a packaging bottle with a sealing function. Background Technology

[0002] Among the packaging needs of various products today, the quality of sealing performance is particularly crucial for packaging bottles containing special liquids such as mouthwash. Mouthwash is made by soaking Chinese medicinal herbs through a specific process, and it has unique pharmacological effects. In order to ensure the quality and efficacy of mouthwash, the packaging bottle must have reliable sealing performance to prevent the medicinal wine from being affected by external factors during storage and transportation.

[0003] Traditional bottle packaging uses an internal thread on the cap and an external thread on the bottle opening for sealing. While this method achieves a certain degree of sealing, limitations in manufacturing processes and various factors in actual use mean that the threads cannot achieve an absolutely tight fit. During long-term storage, factors such as temperature and humidity changes and slight vibrations can cause the threads to loosen, allowing external air and moisture to enter the bottle, leading to oxidation and spoilage of the mouthwash. Furthermore, even with a tight screw thread, some tiny gaps may still exist at the edge of the bottle opening. These gaps are ineffective in preventing the mouthwash from evaporating and the invasion of external microorganisms, thus causing spoilage and affecting its quality and safety. In addition, existing packaging bottles generally lack effective child-proof designs, making it easy for children to open the bottle and accidentally drink the mouthwash, thus posing a health risk. Utility Model Content

[0004] The purpose of this invention is to provide a packaging bottle with a sealing function to solve the technical problems existing in the prior art.

[0005] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows:

[0006] A packaging bottle with a sealing function includes: a bottle body, a bottle cap threadedly connected to the bottle body, and a sealing structure disposed in the bottle body; the bottle body has a bottle mouth, the bottle mouth is provided with an external thread, the external thread is threadedly connected to the bottle cap which has an internal thread; a thickened base is provided at its bottom end; a support edge is provided on the inner wall of the bottle mouth, and the sealing structure is provided on the support edge.

[0007] Furthermore, the bottle cap is provided with a pull ring structure, which is used to limit the position of the bottle cap.

[0008] Furthermore, the sealing structure includes: a sealing airbag and a sealing plug that can be tightly connected to the sealing airbag; the sealing airbag is located at the top of the support edge, and its two ends are connected to the inner wall of the bottle mouth through adhesive parts; the sealing plug is connected to the bottle cap through a connecting rod.

[0009] Furthermore, the sealing plug has a polygonal structure, with a sealing ring fitted over it; the sealing plug has a preset inclined arc, and the working inclined surfaces at both ends are extrusion edges, which can be tightly connected to the sealing airbag.

[0010] Furthermore, the pull ring structure includes: a connecting bridge and a connecting strip connected to the connecting bridge; there are multiple connecting bridges, which are connected to the working surface at the bottom of the bottle cap and are arranged in a circular array along the central axis of the bottle cap; an easy-tear line is provided at the connection between the connecting bridge and the bottle cap; and a pull ring is provided at one end of the connecting strip.

[0011] Furthermore, a brand logo is affixed to one working surface of the bottle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes the tight interlocking of the internal threads of the bottle cap and the external threads of the bottle mouth to effectively prevent external air and moisture from entering the bottle, while also preventing leakage of the contents, forming the first layer of sealing protection. A second layer of sealing protection is formed by the sealing airbag and sealing ring, preventing debris and microorganisms from entering through gaps at the bottle mouth edge. The sealing plug fits onto the sealing ring, and its polygonal structure is tightly connected to the sealing airbag. Furthermore, the compression edges at both ends compress the sealing airbag when the cap is tightened, causing it to deform further and conform to the bottle mouth, forming an even tighter seal. The pull ring structure ensures a tight fit to the bottle mouth, firmly securing the cap, forming the third layer of sealing protection to prevent children from easily opening the cap and accidentally drinking the mouthwash. Through these three layers of sealing protection, this invention improves the bottle's sealing performance, ensuring that the mouthwash is not affected by external factors during storage and transportation, maintaining its quality and integrity. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is the front view of the present invention;

[0016] Figure 3 This is a partial internal structure diagram of the present invention;

[0017] Figure 4 This is an enlarged schematic diagram of part A of this utility model;

[0018] Figure 5 This is a three-dimensional view of the sealing airbag of this utility model;

[0019] Figure 6 This is a top view of the bottle opening of this utility model;

[0020] Figure 7 This is a schematic diagram of the sealing plug connection of this utility model;

[0021] In the diagram: 1. Bottle body; 2. Bottle cap; 3. Bottle mouth; 4. Brand logo; 5. Thickened base; 6. External thread; 7. Connecting rod; 8. Sealing plug; 801. Sealing ring; 802. Extruded edge; 9. Sealing airbag; 901. Adhesive part; 10. Support edge; 11. Pull ring structure; 1101. Connecting bridge; 1102. Connecting strip; 1103. Pull ring; 1104. Easy-tear line. Detailed Implementation

[0022] To make the content of this utility model easier to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figure 1-2 As shown, this embodiment provides a packaging bottle with a sealing function, including: a bottle body 1, a bottle cap 2 threadedly connected to the bottle body 1, and a sealing structure disposed within the bottle body 1; the bottle body 1 has a bottle mouth 3, and the bottle mouth 3 is provided with an external thread 6, which is threadedly connected to the bottle cap 2, which has an internal thread. The threaded engagement achieves the first layer of sealing defense, which can effectively prevent external air, moisture and other substances from entering the bottle and affecting the quality and taste of the mouthwash, while also preventing leakage of the mouthwash inside the bottle; a thickened base 5 is provided at its bottom end; a support edge 10 is provided on the inner wall of the bottle mouth 3, and the support edge 10 is smaller than the inner diameter of the bottle mouth 3, which provides support for the sealing structure; the sealing structure is provided on the support edge 10, and the sealing structure forms the second layer of sealing defense, which can prevent the mouthwash from leaking from the edge gap of the bottle mouth and prevent the mouthwash from evaporating and the invasion of external microorganisms, thus ensuring the quality and performance of the mouthwash; a brand logo 4 is affixed to one working surface of the bottle body 1. The brand logo 4 can clearly display the product's brand image, name, and related information, enabling consumers to quickly identify and distinguish it, thereby enhancing the product's market competitiveness.

[0024] like Figure 3-7As shown, the sealing structure includes: a sealing airbag 9 and a sealing plug 8 that can be tightly connected to the sealing airbag 9; the sealing airbag 9 is located at the top of the support rim 10, and its two ends are connected to the inner wall of the bottle mouth 3 through adhesive pieces 901. The sealing airbag 9 is made of silicone rubber material, which has preset elasticity and flexibility, and can deform and fit tightly to the bottle mouth 3 when squeezed by the sealing plug 8. It also has high tolerance and will not react with the mouthwash contained therein, thus ensuring that the quality and efficacy of the mouthwash are not affected; the adhesive piece 901 ensures that the sealing airbag 9 fits tightly to the inner wall of the bottle mouth 3 without leaving gaps, effectively preventing external air, moisture and other impurities from entering the bottle body 1, and effectively preventing the evaporation of the mouthwash, ensuring that the sealing airbag 9 and the inner wall of the bottle mouth are always kept in close contact during long-term storage and transportation. The sealing plug 8 is tightly connected to the bottle cap 2 via a connecting rod 7, and moves in the direction of the connecting rod 7. The sealing plug 8 has a polygonal structure, with a sealing ring 801 fitted over it. The sealing ring 801 has a preset elasticity, which can better seal the bottle. The sealing plug 8 has a preset inclined arc, and the working inclined surfaces at both ends are extrusion edges 802, which can be tightly connected to the sealing airbag 9. When the bottle cap 2 is tightened, the sealing plug 8 moves closer to the sealing airbag 9 under the action of the connecting rod 7. At this time, the extrusion edge 802 is in close contact with the sealing airbag 9 and applies pressure. The sealing airbag 9 is deformed under the extrusion of the sealing plug 8, thereby sealing the gaps in the inner wall of the bottle mouth 3. Even if the bottle body 1 is subjected to external vibration or temperature changes, it can still seal the mouthwash inside, effectively ensuring the quality of the mouthwash.

[0025] like Figure 3-4As shown, the bottle cap 2 is provided with a pull ring structure 11, which is used to limit the bottle cap 2. The pull ring structure 11 forms a third layer of sealing defense, requiring a preset pulling force to tear it open, effectively preventing children from accidentally drinking it and causing harm to their health. Specifically, the pull ring structure 11 includes: a connecting bridge 1101 and a connecting strip 1102 connected to the connecting bridge 1101; there are multiple connecting bridges 1101, which are connected to the bottom working surface of the bottle cap 2 and are arranged in a circular array along the central axis of the bottle cap 2; the connection between the connecting bridge 1101 and the bottle cap 2 is provided with an easy-to-use... The tear line 1104 locally weakens the material, allowing it to be torn along the tear line 1104 by applying tension, thereby opening the bottle cap 2. However, if the applied pressure is insufficient, the tear line 1104 ensures the connection strength between the connecting bridge 1101 and the connecting strip 1102, ensuring that the pull ring structure 11 effectively limits the bottle cap 2. One end of the connecting strip 1102 is provided with a pull ring 1103. When it is necessary to open the bottle cap 2, the user can use the pull ring 1103 to tear the connecting strip 1102 and the connecting bridge 1101 from the tear line 1104, thereby opening the bottle cap 2.

[0026] The above description is only a preferred embodiment of this utility model patent and is not intended to limit this utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.

Claims

1. A packaging bottle with a sealing function, characterized in that: include: Bottle body (1), bottle cap (2) threadedly connected to the bottle body (1), and sealing structure disposed inside the bottle body (1); The bottle body (1) has a bottle mouth (3), and the bottle mouth (3) is provided with an external thread (6), which is threadedly connected to the bottle cap (2) which has an internal thread; and a thickened base (5) is provided at its bottom end. The inner wall of the bottle opening (3) is provided with a support edge (10), and the sealing structure is provided on the support edge (10).

2. The packaging bottle with sealing function according to claim 1, characterized in that: The bottle cap (2) is provided with a pull ring structure (11), which is used to limit the bottle cap (2).

3. The packaging bottle with sealing function according to claim 2, characterized in that: The sealing structure includes: a sealing airbag (9) and a sealing plug (8) that can be tightly connected to the sealing airbag (9); the sealing airbag (9) is located at the top of the support edge (10) and its two ends are connected to the inner wall of the bottle mouth (3) through adhesive pieces (901); the sealing plug (8) is connected to the bottle cap (2) through a connecting rod (7).

4. The packaging bottle with sealing function according to claim 3, characterized in that: The sealing plug (8) has a polygonal structure and is fitted with a sealing ring (801). The sealing plug (8) has a preset inclined arc and the working inclined surfaces at both ends are extrusion edges (802). The extrusion edges (802) can be tightly connected to the sealing airbag (9).

5. The packaging bottle with sealing function according to claim 2, characterized in that: The pull ring structure (11) includes: a connecting bridge (1101) and a connecting strip (1102) connected to the connecting bridge (1101); there are multiple connecting bridges (1101), which are connected to the working surface at the bottom of the bottle cap (2) and are arranged in a ring array along the central axis of the bottle cap (2); an easy-tear line (1104) is provided at the connection between the connecting bridge (1101) and the bottle cap (2); a pull ring (1103) is provided at one end of the connecting strip (1102).

6. The packaging bottle with sealing function according to claim 1, characterized in that: The bottle body (1) has a brand logo (4) pasted on one side of the working surface.