Bottle cap and packaging bottle

Abstract

The utility model relates to an outer package of liquid, in particular to a bottle cap and a packaging bottle. The bottle cap comprises a bottle cap body, the bottle cap body comprises a cap top face and a cap side wall, an annular side sealing part is arranged on the inner wall, close to the cap side wall, of the cap top face, an annular reinforcing part is arranged between the side sealing part and the cap side wall, and the reinforcing part can improve the strength of the joint of the cap top face and the cap side wall. The bottle cap is prevented from being broken due to stress concentration positions of the cap top surface and the cap side wall when the bottle cap is in an excessive tightening state, and the sealing reliability of the packaging bottle is improved.

Description

Technical Field

[0001] The utility model relates to the field of liquid outer packaging, in particular to a bottle cap and a packaging bottle. Background Art

[0002] The inside of a bottle cap is typically sealed to the bottle opening via an internal plug. To ensure this tightness, side and top seals are also required. In the prior art, the inner side seal of a bottle cap is a separate, separate seal extending from the top surface. This design creates stress concentration at the junction between the top surface and the sidewalls of the cap, and the structure is relatively thin. If excessive force is applied when tightening the cap—that is, after the bottle opening is already firmly against the top surface—the end of the bottle opening can break through this area, damaging the cap and causing the seal to fail. Utility Model Content

[0003] The utility model aims to provide a bottle cap and a packaging bottle, which have reliable sealing performance and are not easily damaged at the connection between the cap top surface and the cap side wall.

[0004] The utility model provides a bottle cap, comprising a bottle cap body, wherein the bottle cap body comprises a cap top surface and a cap side wall, an inner wall of the cap top surface close to the cap side wall is provided with an annular side sealing portion, and is characterized in that an annular reinforcement portion is provided between the side sealing portion and the cap side wall.

[0005] Furthermore, the reinforcement portion, the side sealing portion and the cover side wall are an integrally formed structure.

[0006] Furthermore, the reinforcement portion is connected to the inner wall of the cover top surface.

[0007] Furthermore, the reinforcement portion and the inner wall of the cover top surface are an integrally formed structure.

[0008] Furthermore, an annular inner plug is provided on the inner wall of the top surface of the cover. The annular inner plug is located inside the side sealing portion. The inner wall area of ​​the top surface of the cover between the annular inner plug and the side sealing portion is the top sealing portion.

[0009] Furthermore, a top sealing ring is provided in the top sealing portion.

[0010] Furthermore, an anti-theft ring is provided inside the side wall of the cap, and the anti-theft ring is close to the opening of the bottle cap body.

[0011] The utility model also provides a packaging bottle, comprising a bottle body and the above-mentioned bottle cap, wherein the bottle body comprises a bottle body and a bottle mouth, and the bottle cap is threadedly connected to the bottle mouth.

[0012] Furthermore, the inner wall of the side wall of the cap is provided with an internal thread, the outer wall of the bottle mouth is provided with an external thread, the internal thread and the external thread are threadably matched, and the anti-theft ring in the bottle cap is provided below the internal thread.

[0013] Furthermore, a triangular snap ring is provided on the outer wall of the bottle mouth, the triangular snap ring is located below the external thread, the outer end of the triangular snap ring is tightly against the inner wall of the cover side wall, and the triangular snap ring is located above the anti-theft ring.

[0014] The advantages of the utility model are that one end surface of the side sealing portion is connected to the bottle cap as a whole by arranging the reinforcement portion, thereby enhancing the strength of the connection between the cap top surface and the cap side wall, making the bottle cap less susceptible to damage and ensuring the sealing reliability of the packaging bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a bottle cap of the present utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a structural diagram of a packaging bottle of the utility model;

[0018] The reference numerals in the figure include: bottle cap body 1, cap top surface 2, cap side wall 3, side sealing part 4, annular inner plug 5, top sealing part 6, top sealing ring 7, anti-theft ring 8, bottle cap 9, bottle mouth 10, internal thread 11, external thread 12, and triangular clamp 13. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] according to Figure 1 、 2 As shown, the present invention provides a bottle cap, comprising a bottle cap body 1, which includes a cap top surface 2 and a cap sidewall 3. An annular side seal 4 and an annular inner plug 5 extend downward from the inner wall of the cap top surface 2. The side seal 4 is located adjacent to the cap sidewall 3 and between the cap sidewall 3 and the annular inner plug 5, i.e., the annular inner plug 5 is located inboard of the side seal 4. The inner wall area of ​​the cap top surface 2 between the annular inner plug 5 and the side seal 4 is a top seal 6. In this embodiment, a top seal ring 7 is provided on the inner wall of the cap top surface 2 within the top seal 6.

[0021] An annular reinforcement portion is provided between one side of the side seal portion 4 and the cover side wall 3 , and the reinforcement portion is also connected to the edge inner wall of the cover top surface 2 , that is, the reinforcement portion is also connected to the inner wall of the cover top surface 2 between the side seal portion 4 and the cover side wall 3 .

[0022] As a further improvement of this embodiment, the reinforcement portion, the side sealing portion 4 and the cover side wall 3 are an integrally formed structure.

[0023] As a further improvement of this embodiment, the reinforcement portion and the inner wall of the cover top surface 2 are an integrally formed structure.

[0024] As a further improvement to this embodiment, the reinforcing portion and the connected side seal portion 4, the cap side wall 3, and the cap top surface 2 are integrally formed. This design of the bottle cap body 1 strengthens the connection between the cap side wall 3 and the cap top surface 2, and integrates the side seal portion 4 into one, thereby improving the strength of the bottle cap body where stress is concentrated, without affecting its sealing performance.

[0025] As a further improvement of this embodiment, the cap side wall 3 is further provided with an anti-theft ring 8 , which is close to the opening of the bottle cap body 1 .

[0026] according to Figure 3 As shown, the present invention further provides a packaging bottle, comprising a bottle body and the aforementioned bottle cap 9, wherein the bottle body comprises a bottle body and a bottle mouth 10, and the bottle cap 9 and the bottle mouth 10 are threadedly connected. Specifically, the inner wall of the cap side wall 3 is provided with an internal thread 11, and the outer wall of the bottle mouth 10 is provided with an external thread 12, the internal thread 11 and the external thread 12 are threadedly matched, and the anti-theft ring 8 in the bottle cap 9 is provided below the internal thread.

[0027] A triangular snap ring 13 is also provided on the outer wall of the bottle mouth 10. The triangular snap ring 13 is located below the external thread 12. The outer end of the triangular snap ring 13 is tightly against the inner wall of the cap side wall 3. The triangular snap ring 13 is located above the anti-theft ring 8. When the bottle cap 9 is opened for the first time, the triangular snap ring 13 can pull the anti-theft ring 8 downward, causing the anti-theft ring 8 to change its shape and become ineffective.

[0028] The above description is merely an embodiment of the present invention. The well-known specific structures and characteristics of the scheme are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness of the implementation of the present invention or the practical application of the patent.

Claims

1. A bottle cap, comprising a bottle cap body (1), wherein the bottle cap body (1) comprises a cap top surface (2) and a cap side wall (3), and an annular side sealing portion (4) is provided on the inner wall of the cap top surface (2) near the cap side wall (3), characterized in that: An annular reinforcement portion is provided between the side sealing portion (4) and the cover side wall (3).

2. The bottle cap according to claim 1, characterized in that: The reinforcement portion, the side sealing portion (4) and the cover side wall (3) are an integrally formed structure.

3. The bottle cap according to claim 1, characterized in that: The reinforcement portion is connected to the inner wall of the cover top surface (2).

4. The bottle cap according to claim 3, characterized in that: The reinforcement portion and the inner wall of the cover top surface (2) are an integrally formed structure.

5. The bottle cap according to claim 1, characterized in that: An annular inner plug (5) is provided on the inner wall of the lid top surface (2), and the annular inner plug (5) is located inside the side sealing portion (4). The inner wall area of ​​the lid top surface (2) between the annular inner plug (5) and the side sealing portion (4) is a top sealing portion (6).

6. The bottle cap according to claim 5, characterized in that: A top sealing ring (7) is provided in the top sealing portion (6).

7. The bottle cap according to claim 1, characterized in that: An anti-theft ring (8) is also provided inside the cap side wall (3), and the anti-theft ring (8) is close to the opening of the bottle cap body (1).

8. A packaging bottle, characterized in that: The bottle cap (9) comprises a bottle body and a bottle cap (9) according to any one of claims 1 to 7, wherein the bottle body comprises a bottle body and a bottle mouth (10), and the bottle cap (9) and the bottle mouth (10) are threadedly connected.

9. The packaging bottle according to claim 8, characterized in that: The inner wall of the cap side wall (3) is provided with an internal thread (11), and the outer wall of the bottle mouth (10) is provided with an external thread (12). The internal thread (11) and the external thread (12) are threadedly matched, and the anti-theft ring (8) in the bottle cap (9) is provided below the internal thread.

10. The packaging bottle according to claim 9, characterized in that: The outer wall of the bottle mouth (10) is further provided with a triangular snap ring (13), the triangular snap ring (13) being located below the external thread (12), the outer end of the triangular snap ring (13) being tightly pressed against the inner wall of the cover side wall (3), and the triangular snap ring (13) being located above the anti-theft ring (8).

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