A sealed packaging bottle
By employing a multi-layered sealing structure design, the problem of poor sealing performance in existing packaging bottles has been solved, resulting in higher sealing reliability and product quality stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 汕头市亿祥包装实业有限公司
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-26
AI Technical Summary
The existing packaging bottle has a relatively simple sealing structure design, which results in unreliable sealing and makes moisture-sensitive products prone to deterioration.
The design employs a multi-layer sealing structure, including the engagement of the convex ring and the ring groove, the cooperation between the second convex part and the sealing groove, the sealing between the cover plate and the first convex part, and the multi-layer bonding of the inner wall of the housing, forming multiple layers of barrier to enhance the sealing effect.
It significantly improves the sealing reliability of sealed packaging bottles, effectively preventing moisture intrusion and ensuring product quality stability.
Smart Images

Figure CN224278225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bottle technology, and in particular to a sealed packaging bottle. Background Technology
[0002] In the field of product packaging, for products susceptible to moisture, the airtightness of the packaging bottle directly affects the product's shelf life and quality stability. Current packaging bottles use a pull tab to seal the bottle body and cap, a relatively simple sealing structure that relies solely on the protrusion on the pull tab and the concave part on the bottle body. This single-structure sealing method makes it difficult to guarantee reliable sealing, easily leading to product moisture absorption and spoilage. Utility Model Content
[0003] The purpose of this invention is to provide a sealed packaging bottle to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sealed packaging bottle, including a bottle body, a pull tab installed inside the bottle body, a bottle cap provided at the top of the pull tab, and the bottle cap snapped and fixed to the bottle body, the pull tab including a second shell, a groove provided on the second shell, a stepped groove provided in the groove, a flange fixedly connected to the outer wall of the second shell, a second protrusion fixedly connected to the lower surface of the second shell, a third protrusion fixedly connected to the lower surface of the second protrusion, and an avoidance groove provided on the third protrusion.
[0005] Preferably, the bottle body includes a first shell, a first protrusion, a protruding ring, and a sealing groove, and a second shell is fitted inside the first shell. A sealing groove is provided on the upper surface of the first shell at a position corresponding to the second protrusion, and the second protrusion is fitted inside the sealing groove.
[0006] Preferably, a first protrusion is fixedly connected to the upper surface of the first housing at the position corresponding to the flange, and the first protrusion is disposed at the bottom end of the flange, and a protruding ring is fixedly connected to the first protrusion.
[0007] Preferably, the bottle cap includes a cap plate, a fourth protrusion, a first annular groove, a second annular groove, a fifth protrusion, and a sixth protrusion. The fourth protrusion is fixedly connected to the lower surface of the cap plate. The fourth protrusion has a first annular groove at the position corresponding to the protruding ring, and the protruding ring is snapped and fixed in the first annular groove.
[0008] Preferably, a second annular groove is provided on the fourth protrusion at the position corresponding to the flange, and the flange is engaged and fixed in the second annular groove.
[0009] Preferably, a fifth protrusion is fixedly connected to the lower surface of the cover plate at the position corresponding to the stepped groove, and the fifth protrusion is sleeved in the stepped groove.
[0010] Preferably, a sixth protrusion is fixedly connected to the lower surface of the cover plate at the position corresponding to the groove, and the sixth protrusion is sleeved in the groove.
[0011] The advantages of this invention are as follows: the first seal is formed by the engagement of a convex ring with a first annular groove, the fourth seal is formed by the cooperation of a second convex part with a sealing groove, and the fifth seal is formed by the second seal between the cover plate and the first convex part, the third seal between the inner wall of the first convex part and the second shell, and the fifth seal between the inner wall of the first shell and the second shell. Through the synergistic effect of the multiple sealing structures, a layer of barrier is formed. This design greatly enhances the reliability of the sealing effect and can effectively prevent water vapor from entering. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the bottle body of this utility model;
[0014] Figure 2 This is a three-dimensional structural diagram of the pull tab of this utility model;
[0015] Figure 3 This is a three-dimensional structural diagram of the bottle cap of this utility model;
[0016] Figure 4 This is a schematic diagram of the main sectional view of the bottle cap of this utility model;
[0017] Figure 5 This is a schematic diagram of the overall front view sectional structure of this utility model.
[0018] In the diagram: 1. Bottle body; 11. First shell; 12. First protrusion; 13. Protruding ring; 14. Sealing groove; 2. Hand pull tab; 21. Second shell; 22. Groove; 23. Second protrusion; 24. Third protrusion; 25. Clearance groove; 26. Stepped groove; 27. Flange; 3. Bottle cap; 31. Cover plate; 32. Fourth protrusion; 33. First annular groove; 34. Second annular groove; 35. Fifth protrusion; 36. Sixth protrusion. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] Please see the appendix Figure 1 -Appendix Figure 5This utility model provides an embodiment of a sealed packaging bottle, including a bottle body 1, a pull tab 2 installed inside the bottle body 1, a bottle cap 3 at the top of the pull tab 2, and the bottle cap 3 being snapped and fixed to the bottle body 1. The pull tab 2 includes a second housing 21, a groove 22 formed on the second housing 21, a stepped groove 26 formed in the groove 22, a flange 27 fixedly connected to the outer wall of the second housing 21, a second protrusion 23 fixedly connected to the lower surface of the second housing 21, a third protrusion 24 fixedly connected to the lower surface of the second protrusion 23, and a clearance groove 25 formed on the third protrusion 24. The bottle body 1 and the bottle cap 3 are sealed together by the pull tab 2. The groove 22 and the stepped groove 26 are used to accommodate the structure of the bottle cap 3. The second protrusion 23 is used for... The structure of the bottle body 1 is used to form a seal. The clearance groove 25 is used to provide clearance space for the deformation of the third protrusion 24. After deformation, the third protrusion 24 can fit tightly with the structure of the bottle body 1 under the action of elasticity. The bottle body 1 includes a first shell 11, a first protrusion 12, a protruding ring 13 and a sealing groove 14. The second shell 21 is sleeved in the first shell 11. The sealing groove 14 is opened on the upper surface of the first shell 11 at the position corresponding to the second protrusion 23. The second protrusion 23 is sleeved in the sealing groove 14. The first shell 11 accommodates the second protrusion 23 through the sealing groove 14. The sealing groove 14 and the second protrusion 23 form a seal. The upper surface of the first shell 11 is fixedly connected at the position corresponding to the flange 27. The bottle cap 3 has a first protrusion 12 located at the bottom end of the flange 27. A protruding ring 13 is fixedly connected to the first protrusion 12. The first protrusion 12 supports the flange 27 and also forms a seal with the second housing 21. The bottle cap 3 includes a cap plate 31, a fourth protrusion 32, a first annular groove 33, a second annular groove 34, a fifth protrusion 35, and a sixth protrusion 36. The lower surface of the cap plate 31 is fixedly connected to the fourth protrusion 32. A first annular groove 33 is formed on the fourth protrusion 32 at the position corresponding to the protruding ring 13, and the protruding ring 13 is snapped and fixed in the first annular groove 33. The protruding ring 13 cooperates with the first annular groove 33 to achieve the snap-fit fixation between the fourth protrusion 32 and the first protrusion 12. A first annular groove 33 is formed on the fourth protrusion 32 at the position corresponding to the flange 27. A second annular groove 34 is provided, and a flange 27 is snapped and fixed inside the second annular groove 34. The flange 27 cooperates with the second annular groove 34 to achieve snap-fit fixation between the pull tab 2 and the bottle cap 3. A fifth protrusion 35 is fixedly connected to the lower surface of the cover plate 31 at the position corresponding to the stepped groove 26, and the fifth protrusion 35 is sleeved in the stepped groove 26. The fifth protrusion 35 supports the second housing 21 through the stepped groove 26, so that the second housing 21 is tightly fitted with the inner wall of the first protrusion 12. A sixth protrusion 36 is fixedly connected to the lower surface of the cover plate 31 at the position corresponding to the groove 22, and the sixth protrusion 36 is sleeved in the groove 22. The sixth protrusion 36 supports the second housing 21 through the groove 22, so that the second housing 21 is tightly fitted with the inner wall of the first housing 11.
[0021] Working principle: When using this utility model, first install the pull tab 2 inside the bottle cap 3, so that the flange 27 is engaged in the second annular groove 34, the fifth protrusion 35 is inserted into the stepped groove 26, and the sixth protrusion 36 is inserted into the groove 22. Then install the bottle cap 3 on the bottle body 1, so that the protruding ring 13 is engaged in the first annular groove 33, and the second protrusion 23 is inserted into the sealing groove 14. The protruding ring 13 cooperates with the first annular groove 33 to achieve the engagement and fixation of the fourth protrusion 32 and the first protrusion 12, forming the first seal. The flange 27 forms the second seal between the cover plate 31 and the first protrusion 12. The inner wall of the first protrusion 12 and the second shell 21 form the third seal. The fifth protrusion 35 and the sixth protrusion 36 are used to support the second shell 21 to prevent the second shell 21 from deforming during installation. The second protrusion 23 and the sealing groove 14 form the fourth seal. The seal is achieved by pressing against the inner wall of the sealing groove 14. The third protrusion 24 deforms towards the relief groove 25. Under the action of elasticity, the third protrusion 24 will tightly fit against the inner wall of the sealing groove 14, forming a fifth seal between the inner wall of the first housing 11 and the second housing 21. The sixth protrusion 36 supports the second housing 21 through the groove 22, so that the second housing 21 fits tightly against the inner wall of the first housing 11. The fifth protrusion 35 supports the second housing 21 through the stepped groove 26, so that the second housing 21 fits tightly against the inner wall of the first protrusion 12. The flange 27 cooperates with the second annular groove 34 to achieve the snap-fit fixation between the pull tab 2 and the bottle cap 3, so that the pull tab 2 does not need to be removed again after the bottle cap 3 is removed, and the pull tab 2 does not need to be reinstalled before the bottle cap 3 is installed. The pull tab 2 is made of elastic material, such as silicone or rubber.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A sealed packaging bottle, comprising a bottle body (1), characterized in that: A pull tab (2) is installed inside the bottle body (1). A bottle cap (3) is provided at the top of the pull tab (2), and the bottle cap (3) is snapped and fixed on the bottle body (1). The pull tab (2) includes a second shell (21). A groove (22) is provided on the second shell (21). A stepped groove (26) is provided in the groove (22). A flange (27) is fixedly connected to the outer wall of the second shell (21). A second protrusion (23) is fixedly connected to the lower surface of the second shell (21). A third protrusion (24) is fixedly connected to the lower surface of the second protrusion (23). An avoidance groove (25) is provided on the third protrusion (24).
2. A sealed packaging bottle according to claim 1, characterized in that: The bottle body (1) includes a first shell (11), a first protrusion (12), a protruding ring (13) and a sealing groove (14), and a second shell (21) is fitted inside the first shell (11). A sealing groove (14) is provided on the upper surface of the first shell (11) at the position corresponding to the second protrusion (23), and the second protrusion (23) is fitted inside the sealing groove (14).
3. A sealed packaging bottle according to claim 2, characterized in that: A first protrusion (12) is fixedly connected to the upper surface of the first housing (11) at the position corresponding to the flange (27), and the first protrusion (12) is disposed at the bottom end of the flange (27), and a protruding ring (13) is fixedly connected to the first protrusion (12).
4. A sealed packaging bottle according to claim 1, characterized in that: The bottle cap (3) includes a cover plate (31), a fourth protrusion (32), a first annular groove (33), a second annular groove (34), a fifth protrusion (35) and a sixth protrusion (36). The lower surface of the cover plate (31) is fixedly connected to the fourth protrusion (32). The fourth protrusion (32) is provided with a first annular groove (33) at the position corresponding to the protruding ring (13), and the protruding ring (13) is snapped and fixed in the first annular groove (33).
5. A sealed packaging bottle according to claim 4, characterized in that: The fourth protrusion (32) has a second annular groove (34) at the position corresponding to the flange (27), and the flange (27) is snapped and fixed in the second annular groove (34).
6. A hermetically sealed bottle as defined in claim 4, wherein: The lower surface of the cover plate (31) is fixedly connected to the position of the stepped groove (26) with a fifth protrusion (35), and the fifth protrusion (35) is sleeved in the stepped groove (26).
7. A sealed packaging bottle according to claim 6, characterized in that: The cover plate (31) has a sixth protrusion (36) fixedly connected to the groove (22) on its lower surface, and the sixth protrusion (36) is sleeved in the groove (22).