Sealing structure for bottle cap and bottle opening of flushing fluid bottle

Abstract

The utility model belongs to the technical field of bottle cap sealing, and particularly relates to a sealing structure for a bottle cap and a bottle opening of a flushing fluid bottle, which comprises the bottle opening and an outer cap, a sealing inner cap capable of sealing the bottle opening is arranged in the bottle opening, the edge of the sealing inner cap is virtually connected with the inner wall of the bottle opening, and a pull ring is arranged at the top of the sealing inner cap; the outer cap is connected with the bottle opening through threads, a circle of vertical protruding annular belt is arranged on the inner top face of the outer cap, when the outer cap is screwed on the bottle opening, the annular belt is inserted into the bottle opening and makes contact with the inner wall of the bottle opening, and the outer wall of the annular belt is matched with the inner wall of the bottle opening to achieve sealing. According to the utility model, through a unique sealing structure, that is, the inner top surface of the outer cap is provided with a circle of vertical raised ring belt, and the outer wall of the ring belt is matched with the inner wall of the bottle opening by adopting the inclined surface, a good sealing effect can still be kept when the outer cap is covered again after the bottle is opened.

Description

Technical Field

[0001] The utility model relates to a sealing structure between a bottle cap and a bottle mouth of a washing liquid bottle, belonging to the technical field of bottle cap sealing. Background Art

[0002] As a common auxiliary product in various fields such as healthcare, laboratories, and home care, the sealing performance of its packaging is directly related to the product's storage quality and user experience. However, the current market for rinse solution bottle caps has a variety of designs. While these meet the initial needs of different scenarios, they still face many challenges in achieving effective re-sealing after opening.

[0003] Rinse liquid bottle caps are typically made of plastic, which provides a good seal upon initial application. However, once opened, their structure often becomes damaged or deformed, making it difficult to restore the original seal. This prevents them from fitting snugly around the bottle opening upon re-application, significantly compromising the sealing performance. Therefore, achieving effective re-sealing of rinse liquid bottle caps after opening has become a pressing issue for those skilled in the art. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a sealing structure between a bottle cap and a bottle mouth of a washing liquid bottle to solve the above problems.

[0005] The sealing structure of the bottle cap and the bottle mouth of the washing liquid bottle described in the utility model comprises a bottle mouth and an outer cover, wherein a sealing inner cover which can seal the bottle mouth is provided in the bottle mouth, the edge of the sealing inner cover is in virtual contact with the inner wall of the bottle mouth, and the top of the sealing inner cover is provided with a pull ring; the outer cover is connected to the bottle mouth by a thread, and the inner top surface of the outer cover is provided with a circle of vertically raised ring bands, when the outer cover is screwed onto the bottle mouth, the ring bands are inserted into the bottle mouth and contact with the inner wall of the bottle mouth, and the outer wall of the ring bands cooperates with the inner wall of the bottle mouth to achieve sealing.

[0006] The sealed inner cap is integrally formed with the bottle opening, ensuring an absolute seal when unopened. When in use, unscrew the outer cap. Because the edge of the sealed inner cap is in virtual contact with the inner wall of the bottle opening, you can pull the pull ring to remove the sealed inner cap for easy opening. Once the bottle is opened, the liquid in the bottle can be poured out. If you can't finish the bottle in one go, you can screw on the outer cap. The outer cap and the bottle opening have a sealing structure. The inner top surface of the outer cap is equipped with a ring of vertical protrusions. When the cap is closed, the ring is inserted into the bottle opening. The outer wall of the ring cooperates with the inner wall of the bottle opening to achieve a seal, preventing contamination due to the open bottle opening and not affecting continued use.

[0007] The outer wall of the ring band and the inner wall of the bottle mouth are both designed as annular bevels, which mate with the inner wall of the bottle mouth. This beveled design allows the ring band to slide into place more easily when inserted into the bottle mouth, thanks to the guiding effect of the bevel. More importantly, when the ring band is fully inserted into the bottle mouth, the tight fit of the bevels creates a tight seal between the ring band and the bottle mouth, helping to prevent liquid leakage and improve sealing performance.

[0008] Preferably, the central area and the edge area of the sealed inner cover are also virtual joints, which helps to open the sealed inner cover.

[0009] Preferably, an annular reinforcement rib is provided on the edge area of the sealed inner cover.

[0010] The bottom of the bottle mouth of the utility model is provided with a hot-melt sealing seat, which is used for hot-melt connection of the bottle mouth and the bottle body.

[0011] Preferably, the inner wall of the bottle mouth is provided with a plurality of evenly distributed vertical reinforcing ribs.

[0012] Preferably, a plurality of arc-shaped reinforcing ribs are provided in the central area of the inner top surface of the outer cover, and the plurality of arc-shaped reinforcing ribs are connected end to end to form a ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Improved resealing performance after opening: A unique sealing structure features a raised ring band on the inner top surface of the outer cap, with an inclined surface between the outer wall of the ring band and the inner wall of the bottle mouth. This ensures a good seal even when the outer cap is replaced after opening. This design effectively solves the problem of the existing flushing liquid bottle cap having difficulty restoring its seal after opening, ensuring product preservation quality and user experience.

[0015] 2. Easy to open and reuse: The sealed inner cap is integrally formed with the bottle mouth, with the edges vaguely connected. Combined with the pull ring design, it allows users to easily remove the sealed inner cap and pour out the liquid. If the bottle is not fully used, simply screw on the outer cap to reseal it, avoiding contamination from the open mouth and ensuring the hygienic and sustainable use of the product.

[0016] 2. Enhanced structural strength and durability: The overall strength and durability of the structure are improved by setting annular reinforcement ribs on the edge of the sealed inner cover, vertical reinforcement ribs on the inner wall of the bottle mouth, and arc-shaped reinforcement ribs on the inner top surface of the outer cover.

[0017] The utility model has a simple structure and is easy to use, and avoids the problem of contamination in the bottle caused by subsequent loose sealing due to incomplete use after opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the outer cap being twisted off from the bottle mouth;

[0019] Figure 2 It is a three-dimensional diagram of the exploded structure of the utility model;

[0020] Figure 3 This is the main view of the exploded structure of the utility model;

[0021] Figure 4 It is a three-dimensional cross-sectional view of the combined structure of the utility model;

[0022] Figure 5 yes Figure 4 A partial enlarged view of part A in the middle;

[0023] Figure 6 It is a planar cross-sectional view of the combined structure of the utility model;

[0024] Figure 7 yes Figure 6 A partial enlarged view of part B in the middle;

[0025] Figure 8 It is a schematic diagram of the structure inside the outer cover;

[0026] Figure 9 It is a schematic diagram of the structure inside the bottle;

[0027] Figure 10 It is one of the three-dimensional structural diagrams of the sealed inner cover;

[0028] Figure 11 This is the second schematic diagram of the three-dimensional structure of the sealed inner cover.

[0029] In the figure: 1. Bottle mouth; 11. Hot melt sealing seat; 12. Vertical reinforcement rib; 2. Sealing inner cover; 21. Pull ring; 22. Annular reinforcement rib; 23. Inner groove; 3. Outer cover; 31. Ring band; 32. Arc reinforcement rib; 4. Outer groove. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to specific embodiments.

[0031] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described herein.

[0032] For example, multiple embodiments may have various modifications and various forms, and it should be understood that the scope of rights of the present invention includes equivalents that can implement the technical idea.

[0033] like Figures 1 to 11As shown, this embodiment is implemented by the following technical solution: it includes a bottle mouth 1 and an outer cover 3. A sealed inner cover 2 is installed inside the bottle mouth 1 to seal the bottle mouth 1. The edge of the sealed inner cover 2 is in virtual contact with the inner wall of the bottle mouth 1 at the outer groove 4. The central area and the edge area of the sealed inner cover 2 are also in virtual contact at the inner groove 23. The top of the sealed inner cover 2 is provided with an integrally formed pull ring 21. The pull ring 21 can be used to peel off the sealed inner cover 2 for easy opening. After pulling it open, the liquid in the bottle can be poured out.

[0034] The outer side of the outer cap 3 is provided with several anti-slip stripes. The outer cap 3 is connected to the bottle mouth 1 via threads. The inner top surface of the outer cap 3 is provided with a ring band 31 with vertical protrusions. When the outer cap 3 is screwed onto the bottle mouth 1, the ring band 31 is inserted into the bottle mouth 1 and contacts the inner wall of the bottle mouth 1. The outer wall of the ring band 31 cooperates with the inner wall of the bottle mouth 1 to achieve a seal. The outer wall of the ring band 31 and the inner wall of the bottle mouth 1 are both provided with an annular inclined surface, and the outer wall of the ring band 31 and the inner wall of the bottle mouth 1 are matched by the inclined surface.

[0035] The bottom of the bottle mouth 1 of this embodiment is provided with an integrally formed hot-melt sealing seat 11 for hot-melt connection between the bottle mouth 1 and the bottle body (not shown).

[0036] In order to enhance the overall structural strength, a circle of annular reinforcing ribs 22 is provided in the edge area of the sealed inner cover 2; a number of evenly distributed vertical reinforcing ribs 12 are provided on the inner wall of the bottle mouth 1; and a plurality of arc-shaped reinforcing ribs 32 are provided in the central area of the inner top surface of the outer cover 3. The plurality of arc-shaped reinforcing ribs 32 are connected end to end to form a ring.

[0037] The present invention has a unique sealing structure, that is, a ring band 31 with vertical protrusions is provided on the inner top surface of the outer cover 3, and an inclined surface is used between the outer wall of the ring band 31 and the inner wall of the bottle mouth 1, so that a good sealing effect can be maintained when the outer cover is replaced after opening.

[0038] Of course, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples. Equivalent changes and improvements made by ordinary technicians in this technical field within the essential scope of the present invention should all fall within the scope of the patent of the present invention.

Claims

1. A sealing structure for a bottle cap and a bottle mouth of a washing liquid bottle, comprising a bottle mouth (1) and an outer cover (3), characterized in that: A sealing inner cover (2) is provided inside the bottle mouth (1) for sealing the bottle mouth (1), the edge of the sealing inner cover (2) is in virtual contact with the inner wall of the bottle mouth (1), and a pull ring (21) is provided on the top of the sealing inner cover (2); the outer cover (3) is connected to the bottle mouth (1) through a thread, and the inner top surface of the outer cover (3) is provided with a ring belt (31) with vertical protrusions. When the outer cover (3) is screwed onto the bottle mouth (1), the ring belt (31) is inserted into the bottle mouth (1) and contacts the inner wall of the bottle mouth (1), and the outer wall of the ring belt (31) cooperates with the inner wall of the bottle mouth (1) to achieve sealing.

2. The sealing structure between the bottle cap and the bottle mouth of the washing liquid bottle according to claim 1, characterized in that: The outer wall of the ring belt (31) and the inner wall of the bottle mouth (1) are both arranged as annular inclined surfaces, and the outer wall of the ring belt (31) and the inner wall of the bottle mouth (1) are matched through the inclined surfaces.

3. The sealing structure between the bottle cap and the bottle mouth of the washing liquid bottle according to claim 1 or 2, characterized in that: The central area and the edge area of the sealing inner cover (2) are also virtual connections.

4. The sealing structure between the bottle cap and the bottle mouth of the washing liquid bottle according to claim 3, characterized in that: A ring-shaped reinforcing rib (22) is provided at the edge area of the sealing inner cover (2).

5. The sealing structure between the bottle cap and the bottle mouth of the washing liquid bottle according to claim 1, characterized in that: The bottom of the bottle mouth (1) is provided with a hot-melt sealing seat (11).

6. The sealing structure between the bottle cap and the bottle mouth of the washing liquid bottle according to claim 1, characterized in that: The inner wall of the bottle mouth (1) is provided with a plurality of evenly distributed vertical reinforcing ribs (12).

7. The sealing structure between the bottle cap and the bottle mouth of the washing liquid bottle according to claim 1, characterized in that: A plurality of arc-shaped reinforcing ribs (32) are provided in the central area of the inner top surface of the outer cover (3), and the plurality of arc-shaped reinforcing ribs (32) are connected end to end to form a ring.

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