A dual-flow regulating bottle cap

Abstract

The present invention relates to a dual-flow regulating bottle cap, comprising an outer cap, a middle cap and an inner cap; the inner cap is nested on the bottle mouth, and is provided with a first liquid outlet, a first sealing ring, a liquid outlet ring, an auxiliary liquid outlet hole and a first limit block, the edge of the first liquid outlet is folded upward to form the liquid outlet ring, the auxiliary liquid outlet holes are distributed around the liquid outlet ring, the first sealing ring is arranged at the lower end of the top plate of the inner cap and is chiseled and connected with the inner side wall of the bottle mouth, and the first limit block is arranged on the outer side wall of the inner cap; the middle cap is nested on the inner cap, and is provided with a second liquid outlet and a second limit block, the second liquid outlet forms a chiseled connection with the outer wall of the liquid outlet ring, the second limit block is arranged on the inner side wall of the middle cap and corresponds to the upper and lower positions of the first limit block. Compared with the prior art, the present invention is easy to operate, and the amount of liquid discharge can be adjusted by pulling the middle cap to achieve convenient switching between large and small flow rates, meeting the user's usage needs in different scenarios.

Description

Technical Field

[0001] The invention relates to a bottle cap for a container, in particular to a dual-flow regulating bottle cap. Background Art

[0002] Existing skincare bottle caps on the market typically feature a single opening with a relatively small inner diameter, suitable for daily, small-dose pouring. However, when skincare products are used with cotton pads and facial masks for large-volume wet compresses, pouring with this small opening becomes inconvenient and time-consuming. Simply increasing the diameter of the opening in the bottle cap would not meet normal daily needs and could easily lead to waste. Therefore, there is a need for a bottle cap with adjustable flow rate to meet these new consumer demands. Summary of the Invention

[0003] The purpose of the present invention is to provide a dual flow regulating bottle cap in order to overcome the defects of the above-mentioned prior art.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A dual-flow regulating bottle cap, comprising an outer cap, a middle cap, and an inner cap; the inner cap is nested on the bottle mouth, and is provided with a first liquid outlet, a first sealing ring, a liquid outlet ring, auxiliary liquid outlet holes, and a first stopper; the first liquid outlet is provided on the top plate of the inner cap, the edge of the first liquid outlet is folded upward to form the liquid outlet ring, the auxiliary liquid outlet holes are distributed around the liquid outlet ring, the first sealing ring is provided at the lower end of the top plate of the inner cap and is engaged with the inner side wall of the bottle mouth, and the first stopper is provided on the outer side wall of the inner cap;

[0006] The middle cover is nested on the inner cover, and is provided with a second liquid outlet and a second limit block. The second liquid outlet is arranged on the top plate of the middle cover, and the positions of the second liquid outlet correspond to the first liquid outlet, so that the second liquid outlet and the outer wall of the liquid outlet ring form a chimeric connection. The second limit block is arranged on the inner side wall of the middle cover, and corresponds to the upper and lower positions of the first limit block. After the middle cover moves upward a certain distance relative to the inner cover, the second limit block and the first limit block contact each other to form a limit, and at the same time the second liquid outlet and the liquid outlet ring are separated to form a gap.

[0007] Furthermore, the outer cover is nested on the middle cover, and a second sealing ring is provided on the outer cover. The second sealing ring is located at the lower end of the top plate of the outer cover and is used to form a chimeric connection with the inner wall of the liquid outlet ring.

[0008] Furthermore, the inner cover and the bottle mouth are rotationally connected via a threaded structure.

[0009] Furthermore, the outer cover and the bottle body are connected via a snap-fit structure.

[0010] Furthermore, the auxiliary liquid outlet hole is an arc-shaped long hole.

[0011] Furthermore, the first limiting block and the second limiting block are both arc-shaped long strips.

[0012] Furthermore, the first sealing ring is connected to the inner side wall of the bottle mouth by interference fit.

[0013] Furthermore, the second liquid outlet is connected to the outer wall of the liquid outlet ring by interference fit.

[0014] Furthermore, a third sealing ring is provided between the top of the bottle mouth and the top plate of the inner cover.

[0015] Furthermore, the inner cover and the middle cover are made of PE polyethylene material or PP polypropylene material; the outer cover is made of PP polypropylene material or ABS plastic material.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is easy to operate. The amount of liquid discharged can be adjusted by pulling the middle cover to achieve convenient switching between large flow and small flow, meeting the user's needs in different scenarios.

[0018] 2. The present invention has a compact structure and occupies little space; it does not require users to change their usage habits during daily use, and has good user experience and strong practicality.

[0019] 3. The present invention has wide applicability and can be applied to various solution bottles on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a cross-sectional schematic diagram of the inner cover.

[0022] Figure 3 It is a cross-sectional schematic diagram of the middle cover.

[0023] Figure 4 Schematic cross-sectional view of the outer cover.

[0024] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the present invention.

[0025] Figure 6 It is a schematic cross-sectional view of the present invention in use.

[0026] Figure markings: 1. Inner cover, 11. First liquid outlet, 12. First sealing ring, 13. Liquid outlet ring, 14. Auxiliary liquid outlet, 15. First limiting block, 2. Middle cover, 21. Second liquid outlet, 22. Second limiting block, 3. Outer cover, 31. Second sealing ring, 32. Buckle, 4. Third sealing ring. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0028] like Figure 1 As shown, this embodiment provides a dual-flow regulating bottle cap, comprising an outer cap 3, a middle cap 2, and an inner cap 1. The inner cap 1 can be used with various types of solution bottles, the middle cap 2 is used to switch the flow rate, and the outer cap 3 can cover the bottle body and achieve a seal with the inner cap 1. The details are as follows.

[0029] like Figure 2 As shown, the inner cover 1 is nested on the bottle mouth. The inner cover 1 and the bottle mouth can be nested by interference fit or integrally formed. In this embodiment, the inner cover 1 and the bottle mouth are rotationally connected by the most common threaded structure. The inner cover 1 is provided with a first liquid outlet 11, a first sealing ring 12, a liquid outlet ring 13, an auxiliary liquid outlet hole 14 and a first limit block 15. The first liquid outlet 11 is arranged in the center of the top plate of the inner cover 1, and the edge of the first liquid outlet 11 is folded upward to form the liquid outlet ring 13. The auxiliary liquid outlet holes 14 are distributed around the liquid outlet ring 13. The first sealing ring 12 is arranged at the lower end of the top plate of the inner cover 1 and is engaged with the inner side wall of the bottle mouth. The first limit block 15 is arranged at the upper end part of the outer wall of the inner cover 1 and is at the same height as the top plate.

[0030] like Figure 3 As shown, the middle cover 2 is nested within the inner cover 1. The middle cover 2 is provided with a second liquid outlet 21 and a second stopper 22. The second liquid outlet 21 is located in the center of the top plate of the middle cover 2, corresponding to the first liquid outlet 11, so that the second liquid outlet 21 forms a chimeric connection with the outer wall of the liquid outlet ring 13. The second stopper 22 is located on the inner sidewall of the middle cover 2, and the second stopper 22 and the first stopper 15 are located in a vertically corresponding position.

[0031] like Figure 4 As shown, the outer cover 3 is nested within the middle cover 2. A second sealing ring 31 is provided on the outer cover 3, located at the lower end of the top plate of the outer cover 3 and configured to form a chiseled connection with the inner wall of the liquid outlet ring 13. The outer cover 3 and the bottle body are connected via a snap-fit mechanism. Specifically, a snap 32 is provided at the bottom of the side wall of the outer cover 3, which engages with a snap point on the bottle body to close the cover.

[0032] like Figure 5 As shown, in this embodiment, the first sealing ring 12 is preferably connected to the inner side wall of the bottle mouth by an interference fit, and the second liquid outlet 21 is connected to the outer wall of the liquid outlet ring 13 by an interference fit, so as to prevent leakage when the bottle cap is in the closed state. If necessary, silicone can be added to the second liquid outlet 21 to strengthen the seal.

[0033] In this embodiment, a third sealing ring 4 may be further provided between the top of the bottle mouth and the top plate of the inner cover 1 to provide multiple sealing guarantees.

[0034] The setting of the auxiliary liquid outlet 14 can be adjusted accordingly according to the viscosity, flow rate and usage of the product to meet the new needs of consumers on the market. It is preferred to use discontinuous arc long strip holes distributed concentrically with the first liquid outlet 11.

[0035] In this embodiment, the first stopper 15 and the second stopper 22 are both arc-shaped long strips. This facilitates assembly of the middle cover 2 and the inner cover 1. When installing the middle cover 2, the first stopper 15 and the second stopper 22 are offset left and right relative to each other. Once the middle cover 2 is in place, rotating the middle cover 2 will align the first stopper 15 and the second stopper 22 in a corresponding vertical relationship.

[0036] The inner cover 1 and the middle cover 2 are generally made of PE polyethylene or PP polypropylene, preferably PE polyethylene; the outer cover 3 is made of PP polypropylene or ABS plastic, preferably PP polypropylene. The bottle body in this embodiment is made of PET polyethylene terephthalate.

[0037] The working principle of this embodiment is:

[0038] 1. When only the outer cover 3 is opened, the first limit block 15 on the inner cover 1 contacts the top plate of the middle cover 2, so that the auxiliary liquid outlet 14 is sealed by the top plate of the middle cover 2. The liquid in the bottle only flows out from the first liquid outlet 11 of the inner cover 1. At this time, the liquid outflow is small, which is suitable for small-dose use in daily skin care.

[0039] 2. Pull up the middle cover 2 for a certain distance, such as Figure 6 As shown, the second stopper 22 and the first stopper 15 now contact each other, restricting the movement of the middle cover 2. Simultaneously, the second liquid outlet 21 and the liquid outlet ring 13 separate, forming a gap. The liquid in the bottle now flows not only from the first liquid outlet 11 of the inner cover 1, but also through the auxiliary liquid outlet hole 14 on the inner cover 1 and the second liquid outlet 21 of the middle cover 2. This increases the liquid flow rate, making it suitable for use with cotton pads or facial masks during wet compresses.

[0040] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A dual flow regulating bottle cap, characterized in that: The invention comprises an outer cover (3), a middle cover (2) and an inner cover (1); the inner cover (1) is nested on the bottle mouth, and the inner cover (1) is provided with a first liquid outlet (11), a first sealing ring (12), a liquid outlet ring (13), an auxiliary liquid outlet hole (14) and a first limiting block (15); the first liquid outlet (11) is arranged on the top plate of the inner cover (1), the edge of the first liquid outlet (11) is folded upward to form the liquid outlet ring (13), the auxiliary liquid outlet holes (14) are distributed around the liquid outlet ring (13), the first sealing ring (12) is arranged at the lower end of the top plate of the inner cover (1) and is engaged with the inner side wall of the bottle mouth, and the first limiting block (15) is arranged on the outer side wall of the inner cover (1); The middle cover (2) is nested on the inner cover (1), and the middle cover (2) is provided with a second liquid outlet (21) and a second limiting block (22). The second liquid outlet (21) is arranged on the top plate of the middle cover (2), and the second liquid outlet (21) corresponds to the first liquid outlet (11) in position, so that the second liquid outlet (21) and the outer wall of the liquid outlet ring (13) form a chimeric connection. The second limiting block (22) is arranged on the inner side wall of the middle cover (2) and corresponds to the upper and lower positions of the first limiting block (15). When the middle cover (2) moves upward a certain distance relative to the inner cover (1), the second limiting block (22) and the first limiting block (15) contact each other to form a limit, and at the same time, the second liquid outlet (21) and the liquid outlet ring (13) are separated to form a gap. When only the outer cover (3) is opened, the first limiting block (15) on the inner cover (1) contacts the top plate of the middle cover (2), and the auxiliary liquid outlet (14) is sealed by the top plate of the middle cover (2). The liquid in the bottle only flows out from the first liquid outlet (11) of the inner cover (1), and the liquid outlet is at a small flow rate at this time; when the middle cover (2) is pulled up a certain distance, the second limiting block (22) and the first limiting block (15) contact each other to limit the movement of the middle cover (2), and at the same time, the second liquid outlet (21) and the liquid outlet ring (13) are separated to form a gap, and the liquid in the bottle flows out from the first liquid outlet (11) of the inner cover (1), and also flows out through the auxiliary liquid outlet (14) on the inner cover (1) and the second liquid outlet (21) of the middle cover (2), thereby increasing the liquid outlet flow rate; The outer cover (3) is nested on the middle cover (2), and a second sealing ring (31) is provided on the outer cover (3). The second sealing ring (31) is located at the lower end of the top plate of the outer cover (3) and is used to form a chimeric connection with the inner wall of the liquid outlet ring (13); The second liquid outlet (21) and the outer wall of the liquid outlet ring (13) are connected by interference fit.

2. A dual flow regulating bottle cap according to claim 1, characterized in that: The inner cover (1) and the bottle mouth are rotationally connected via a threaded structure.

3. The dual flow regulating bottle cap according to claim 1, characterized in that: The outer cover (3) and the bottle body are connected via a snap-fit structure.

4. The dual flow regulating bottle cap according to claim 1, characterized in that: The auxiliary liquid outlet hole (14) is a circular arc long hole.

5. The dual flow regulating bottle cap according to claim 1, characterized in that: The first limiting block (15) and the second limiting block (22) are both arc-shaped long strips.

6. The dual flow regulating bottle cap according to claim 1, characterized in that: The first sealing ring (12) is connected to the inner side wall of the bottle mouth by interference fit.

7. The dual flow regulating bottle cap according to claim 1, characterized in that: A third sealing ring (4) is provided between the top of the bottle mouth and the top plate of the inner cover (1).

8. The dual flow regulating bottle cap according to claim 1, characterized in that: The inner cover (1) and the middle cover (2) are made of PE polyethylene material or PP polypropylene material; the outer cover (3) is made of PP polypropylene material or ABS plastic material.

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