Waterproof one-way breathable bottle cap

By designing a waterproof, one-way breathable bottle cap, and using an expanded polytetrafluoroethylene (ePTFE) membrane layer and a breathable cap structure, the problems of liquid splashing and oxidation damage to furniture are solved. This achieves the functions of liquid leak prevention and gas exchange, ensuring the safe use of chlorine dioxide.

CN223804124UActive Publication Date: 2026-01-16SHANGHAI LANGTONG ENVIRONMENTAL TECH DEV CO LTD
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Patent Information

Application Number
CN202520422070.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-16
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing bottle caps can easily cause liquid to splash out during use, posing a risk of damaging furniture and appliances. Furthermore, unreacted chlorine dioxide may oxidize furniture surfaces, leading to fading or rusting.

Method used

A waterproof one-way breathable bottle cap was designed, using expanded polytetrafluoroethylene (ePTFE) membrane as the one-way breathable membrane layer. Combined with the compression fixation of the breathable cap and the bottle mouth, liquid spillage is prevented. At the same time, the vent holes and gasket structure prevent liquid leakage. A sealing cap is provided for sealing when not in use.

Benefits of technology

It effectively prevents liquid spills, protects furniture and appliances, avoids liquid leakage and oxidation damage, and maintains gas exchange function to ensure the effective use of chlorine dioxide.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof one-way breathable bottle cap which comprises a one-way breathable film layer (3) and a breathable cap. The ventilation cover (2) is provided with ventilation holes (22); and the one-way breathable film layer (3) is positioned at the air holes (22). According to the waterproof one-way breathable bottle cap, the breathable cap body (2) is used for being fixed to the bottle opening, the one-way breathable film layer (3) is fixed between the bottle opening and the breathable hole (22) through extrusion of the breathable cap body (2) and the bottle opening, and therefore the one-way breathable film layer (3) can be prevented from falling off; and meanwhile, the risk of damaging furniture and household appliances due to overflow of liquid in the bottle body caused by toppling of the bottle body can be prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a breathable bottle cap technical field especially relates to a waterproof one-way breathable bottle cap. BACKGROUND

[0002] Chlorine dioxide can oxidize various harmful or odor substances in air, such as formaldehyde, toluene, ammonia, sulfide, etc. Chlorine dioxide is not easy to form carcinogenic substances such as trihalomethane, and has no carcinogenic, teratogenic and mutagenic effects on higher animals. Compared with other disinfectants, it has significant advantages in space sterilization, odor removal or food preservation.

[0003] In the family, disinfection is generally pouring liquid reagent into a container or beverage bottle, then putting in the excitation powder to accelerate the reaction of the reagent, and releasing a large amount of chlorine dioxide in a short time to achieve the effect of disinfection and elimination of harmful or odor substances. Because the bottle opening is an open structure, it is easy to be knocked over and splash liquid during use, so it is necessary to be careful to avoid the content liquid from splashing on the surface of furniture and household appliances. The unreacted components will oxidize the surface of furniture and household appliances, causing discoloration and aging, and may even cause circuit aging and rusting. UTILITY MODEL CONTENT

[0004] The utility model provides a waterproof one-way breathable bottle cap.

[0005] The waterproof one-way breathable bottle cap provided by the utility model comprises a one-way breathable film layer (3) and a breathable cover, a breathable hole (22) is arranged on the breathable cover (2), and the one-way breathable film layer (3) is located at the breathable hole (22).

[0006] Preferably, the one-way breathable film layer (3) is a structure of an expanded polytetrafluoroethylene film layer.

[0007] Preferably, the breathable cover (2) comprises a first ring body (23) and a first top plate (21), the breathable hole (22) is arranged on the first top plate (21), the first top plate (21) is fixed to one end of the first ring body (23) and is an integrally formed structure, the outer periphery of the one-way breathable film layer (3) is tightly attached to the inner wall of the first ring body (23), and one side of the one-way breathable film layer (3) and one side of the first top plate (21) are fixed through a glue layer.

[0008] Preferably, the waterproof one-way breathable bottle cap provided by the utility model further comprises a gasket (4), and the gasket (4) is arranged on the side, away from the breathable hole (22), of the one-way breathable film layer (3).

[0009] Preferably, the inner wall of one end of the first ring body (23), away from the first top plate (21), is provided with a first internal thread (24).

[0010] Preferably, the waterproof one-way ventilation bottle cap further comprises a sealing cover (1); the sealing cover (1) comprises a second ring body (12) and a second top plate (11); the second top plate (11) is fixed at one end of the second ring body (12), and the two are an integral forming structure; the inner diameter of the second ring body (12) is the same as the outer diameter of the first ring body (23); the inner wall of the second ring body (12) is provided with a second internal thread; the outer wall of the first ring body (23) close to the first top plate (21) is provided with a first external thread (13) matched with the second internal thread.

[0011] The waterproof one-way ventilation bottle cap provided by the utility model, the ventilation cover (2) is used for being fixed with the bottle mouth, the one-way ventilation film layer (3) is fixed between the bottle mouth and the ventilation hole (22) through the extrusion of the ventilation cover (2) and the bottle mouth, so that the one-way ventilation film layer (3) can be avoided from falling off, and the risk that the liquid in the bottle body is poured out to cause damage to furniture and household appliances can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The utility model provides the structure schematic diagram of waterproof one-way ventilation bottle cap;

[0013] Figure 2 The utility model provides the explosion structure schematic diagram of waterproof one-way ventilation bottle cap;

[0014] Figure 3 The utility model provides the cross section first visual angle structure schematic diagram of waterproof one-way ventilation bottle cap;

[0015] Figure 4 The utility model provides the cross section second visual angle structure schematic diagram of waterproof one-way ventilation bottle cap. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0017] As Figures 1-4As shown, the waterproof one-way ventilation bottle cap provided by the embodiment includes a one-way ventilation film layer 3 and a ventilation cap; the ventilation cap 2 is provided with a ventilation hole 22; and the one-way ventilation film layer 3 is located at the ventilation hole 22. Those skilled in the art can understand that the ventilation cap 2 is used to be fixed with the bottle mouth, and the one-way ventilation film layer 3 is fixed between the bottle mouth and the ventilation hole 22 through the extrusion of the ventilation cap 2 and the bottle mouth, so as to avoid the risk of damaging furniture and household appliances caused by the spilling of the liquid in the bottle due to the pouring of the bottle body.

[0018] Further, the one-way ventilation film layer 3 is a structure of an expanded polytetrafluoroethylene film layer. Those skilled in the art can understand that the structure of the expanded polytetrafluoroethylene film layer has micropores, and gas can be emitted therefrom, and liquid is blocked and cannot pass through.

[0019] Further, the ventilation cap 2 includes a first ring body 23 and a first top plate 21; the ventilation hole 22 is formed on the first top plate 21; the first top plate 21 is fixed at one end of the first ring body 23, and the two are an integrally formed structure; the outer periphery of the one-way ventilation film layer 3 is tightly attached to the inner wall of the first ring body 23; and one side of the one-way ventilation film layer 3 is fixed with one side of the first top plate 21 through an adhesive layer not shown in the figure. Those skilled in the art can understand that first, the one-way ventilation film layer 3 and the first top plate 21 are fixed through the adhesive layer, so as to prevent the one-way ventilation film from falling off, and the outer periphery of the one-way ventilation film layer 3 is tightly attached to the inner wall of the first ring body 23, so as to prevent the liquid from spilling out of the gap between the one-way ventilation film layer 3 and the ventilation cap 2.

[0020] Further, the waterproof one-way ventilation bottle cap provided by the embodiment also includes a gasket 4; and the gasket 4 is arranged on the side of the one-way ventilation film layer 3 away from the ventilation hole 22. Those skilled in the art can understand that the gasket 4 can prevent the contact part of the one-way ventilation film layer 3 with the bottle mouth from being broken due to excessive extrusion when the ventilation cap 2 is closed on the bottle mouth, so as to prevent the one-way ventilation film layer 3 from falling off. At the same time, the extrusion of the gasket 4 and the inner wall of the first ring body 23 can also prevent the liquid from flowing out of the gap between the gasket 4 and the inner wall of the first ring body 23.

[0021] Further, the inner wall of the end of the first ring body 23 away from the first top plate 21 is provided with a first internal thread 24. Those skilled in the art can understand that in this way, the ventilation cap 2 can be conveniently locked on the bottle mouth of a mineral water bottle or a beverage bottle with the same specification.

[0022] Further, the waterproof one-way air-permeable bottle cap provided by the embodiment further comprises a sealing cap 1; the sealing cap 1 comprises a second ring body 12 and a second top plate 11; the second top plate 11 is fixed at one end of the second ring body 12, and the two are an integral forming structure; the inner diameter of the second ring body 12 is the same as the outer diameter of the first ring body 23; the inner wall of the second ring body 12 is provided with a second internal thread; and the outer wall of the first ring body 23 close to the first top plate 21 is provided with a first external thread 13 matched with the second internal thread. Those skilled in the art can understand that the sealing cap 1 is used for locking on the air-permeable cap 2, so that the sealing effect can be achieved when not in use, thereby facilitating carrying.

[0023] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A waterproof one-way air permeable bottle cap, characterized in that, The single-way air permeable film layer (3) and the air permeable cover; the air permeable cover (2) is provided with air permeable holes (22); the single-way air permeable film layer (3) is located at the air permeable holes (22); The single-way air permeable film layer (3) is a structure of an expanded polytetrafluoroethylene film layer.

2. The waterproof one-way breather bottle cap of claim 1, wherein, The air permeable cover (2) comprises a first ring body (23) and a first top plate (21); the air permeable holes (22) are formed on the first top plate (21); the first top plate (21) is fixed at one end of the first ring body (23) and is an integral forming structure; the outer periphery of the single-way air permeable film layer (3) is tightly attached to the inner wall of the first ring body (23); one side of the single-way air permeable film layer (3) and one side of the first top plate (21) are fixed by an adhesive layer.

3. The waterproof, one-way venting bottle cap of claim 2, wherein, Further comprising a gasket (4); the gasket (4) is arranged on the side of the single-way air permeable film layer (3) away from the air permeable holes (22).

4. The waterproof, one-way venting bottle cap of claim 3, wherein, The inner wall of the end of the first ring body (23) away from the first top plate (21) is provided with a first inner thread (24).

5. The waterproof, one-way venting bottle cap of claim 4, wherein, Further comprising a sealing cover (1); the sealing cover (1) comprises a second ring body (12) and a second top plate (11); the second top plate (11) is fixed at one end of the second ring body (12) and is an integral forming structure; the inner diameter of the second ring body (12) is the same as the outer diameter of the first ring body (23); the inner wall of the second ring body (12) is provided with a second inner thread; the outer wall of the first ring body (23) close to the first top plate (21) is provided with a first outer thread (13) matched with the second inner thread.