Anti-reflux closed bottle cap structure

By designing an anti-backflow, airtight bottle cap structure, the problem of unsealed mouthwash storage was solved, achieving dust and pollution prevention and reuse of the solution, improving medication quality and treatment effect, and saving medical resources.

CN223962539UActive Publication Date: 2026-03-03NINGXIA HUI AUTONOMOUS REGION PEOPLES HOSPITAL
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Patent Information

Application Number
CN202423273924.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-03-03
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Traditional methods of storing and using mouthwash have drawbacks such as insufficient stability and safety due to lack of sealing, inconvenience of using measuring cups, and the effect of pouring the solution into the mouth, which affects efficacy. Furthermore, unused solution is wasted, increasing the economic burden and treatment risks for patients.

Method used

A backflow-proof, airtight bottle cap structure was designed, including a dustproof protective tube, a connector needle, a one-way valve, and a vent pipe, to ensure unidirectional liquid flow, prevent backflow and balance air pressure, and achieve a fixed connection between the bottle cap and the bottle body.

Benefits of technology

It effectively prevents mouthwash contamination, ensures drug efficacy, reduces waste, saves resources, and improves the quality of medication and treatment results.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223962539U_ABST
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Abstract

The utility model relates to an anti-reflux closed bottle cap structure, which comprises a dustproof protective tube (1), a dustproof cover (2) is arranged at the top of the dustproof protective tube (1), and an inserting needle head (1-1) is placed in the dustproof protective tube (1) and is inserted into a rubber plug bottle opening of a bottle body. Fastening plates (2-1) are arranged on the two sides of the dustproof cover (2), the fastening plates (2-1) are connected with fastening plate handles (2-3) through torsional springs (2-2), and the torsional springs (2-2) are used for fixing ratchet barbs (2-4) of the fastening plates (2-1) to a bottle opening ring (2-5) of a bottle body, so that the bottle cap structure is fixedly connected with the bottle body. By the adoption of the anti-backflow closed bottle cap structure, liquid backflow, dust prevention and bacterial infection prevention can be prevented in the use process of a patient, medicine resources are effectively saved, and unnecessary resource waste and economic burden are avoided.
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Description

Technical Field

[0001] This technical solution relates to the field of medical devices, particularly to the field of mouthwash bottles, specifically referring to a backflow-proof, airtight bottle cap structure. Background Technology

[0002] Oral ulcers are a chronic lesion of the oral mucosa that often causes excruciating pain, impacting patients' work and daily life. Treatment for oral mucosal diseases primarily focuses on local measures such as pain relief, anti-inflammation, antiseptic properties, and promoting healing. Numerous studies have demonstrated the effectiveness of various mouthwashes in preventing and treating oral ulcers. Extensive clinical trials and laboratory studies have shown that mouthwashes inhibit bacterial adhesion and colonization, disrupt the bacterial cell membrane's permeability barrier, interfere with glucose metabolism and oxidase systems, form irreversible precipitates with intracellular ATP and nucleic acids, and inhibit bacterial DNA synthesis. Therefore, mouthwashes are effective in eliminating bad breath, reducing oral bacteria, controlling plaque, preventing tooth decay, and providing anti-inflammatory and analgesic effects. They are widely used clinically as adjunctive treatments for various inflammatory oral diseases and other mucosal conditions.

[0003] Traditional methods of storing and using mouthwash have many drawbacks: First, mouthwash bottles stored at room temperature without being sealed cannot guarantee their stability and safety; second, using measuring cups creates inconvenience for both doctors and patients; third, pouring the solution directly from the bottle opening allows saliva and oral secretions to affect the quality and efficacy of the remaining solution; fourth, discarding unused mouthwash within its 24-hour shelf life wastes medical resources and causes unnecessary financial losses for patients. These problems inevitably increase the waste of drug resources, increase the economic burden on patients, reduce the quality of medication and treatment effectiveness, increase the incidence of complications, and are detrimental to improving patient prognosis, promoting disease progression, and recovery. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a backflow-proof, airtight cap structure for mouthwash bottles.

[0005] To achieve the above objectives, the specific structure of the anti-backflow sealed bottle cap of this utility model is as follows:

[0006] The main feature of this anti-backflow sealed bottle cap structure is that the bottle cap structure includes:

[0007] The dustproof tube has a dustproof cover on top, and the inside of the dustproof tube is used to place the insertion needle, which is used to insert into the rubber stopper mouth of the bottle.

[0008] Preferably, the insertion needle is provided with a one-way valve at its base, which is used to control the one-way flow direction of the liquid in the bottle, thereby preventing liquid backflow.

[0009] Preferably, the insertion needle is provided with an exhaust pipe at its base, and a one-way valve is provided at the end of the exhaust pipe. When the liquid in the bottle begins to drop, the one-way valve is used to discharge external air into the bottle through the exhaust pipe, thereby ensuring the internal air pressure balance of the bottle.

[0010] Preferably, the top of the one-way air valve is provided with a dustproof cover to block external dust.

[0011] Preferably, fastening plates are provided on both sides of the dust cover. The fastening plates are connected to the fastening plate handles by torsion springs. The torsion springs are used to fix the ratchet barbs of the fastening plates to the bottle neck ring of the bottle body, so that the bottle cap structure is fixedly connected to the bottle body.

[0012] The anti-backflow sealed bottle cap structure of this utility model can effectively solve the problem of mouthwash being difficult to reuse. It ensures that patients are protected from dust and pollution during use, thereby effectively saving medical resources and economic losses, avoiding unnecessary waste of resources, improving the quality of medication and treatment effects for patients, and has certain practical value. Attached Figure Description

[0013] Figure 1 This is a first structural schematic diagram of the anti-backflow sealed bottle cap structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the second structure of the anti-backflow sealed bottle cap structure of this utility model.

[0015] Figure 3 This is a third structural diagram of the anti-backflow sealed bottle cap structure of this utility model.

[0016] Figure 4 This is a fourth structural diagram of the anti-backflow sealed bottle cap structure of this utility model.

[0017] Figure Labels

[0018] 1 dustproof protective tube

[0019] 1-1 Connector Pin

[0020] 1-2 check valves

[0021] 1-3 exhaust pipes

[0022] 1-4 One-way valves

[0023] 1-5 Dustproof Face Masks

[0024] 2 dust covers

[0025] 2-1 Fastening Plate

[0026] 2-2 Torsion Spring

[0027] 2-3 Fastening plate handle

[0028] 2-4 ratchet barbs

[0029] 2-5 bottle rings

[0030] 2-6 water intake ports

[0031] 3 bottles Detailed Implementation

[0032] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0033] Before describing the embodiments according to the present invention in detail, it should be noted that, in the following, the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Please see Figures 1 to 4 As shown, the anti-backflow sealed bottle cap structure of this utility model includes:

[0035] The dustproof tube 1 has a dustproof cover 2 on top, and the inside of the dustproof tube 1 is used to place the insertion needle 1-1, which is used to insert into the rubber stopper mouth of the bottle body 3.

[0036] In a preferred embodiment of the present invention, the insertion needle 1-1 is provided with a one-way valve 1-2 at its root. The one-way valve 1-2 is used to control the one-way flow direction of the liquid in the bottle, thereby preventing liquid backflow.

[0037] In a preferred embodiment of this utility model, an exhaust pipe 1-3 is provided at the base of the insertion needle 1-1, and a one-way air valve 1-4 is provided at the end of the exhaust pipe 1-3. When the liquid in the bottle begins to drop, the one-way air valve 1-4 is used to discharge external air into the bottle body 3 through the exhaust pipe 1-3, thereby ensuring the internal air pressure balance of the bottle body 3.

[0038] In a preferred embodiment of the present invention, a dustproof mask 1-5 is provided on the top of the one-way air valve 1-4 to block external dust.

[0039] In a preferred embodiment of this utility model, fastening plates 2-1 are provided on both sides of the dust cover 2. The fastening plates 2-1 are connected to the fastening plate handles 2-3 by torsion springs 2-2. The torsion springs 2-2 are used to fix the ratchet barbs 2-4 of the fastening plates 2-1 to the bottle mouth ring 2-5 of the bottle body 3, so that the bottle cap structure is fixedly connected to the bottle body 3.

[0040] In practical applications, as shown in the figure, the anti-backflow sealed bottle cap structure of this technical solution includes an insertion needle 1-11 at the bottom, which can be directly inserted into the mouthwash during use. Before use, it is protected by a dustproof sleeve to prevent dust and bacterial infection. A one-way valve is located at the base of the insertion needle, allowing water to flow in only one direction to prevent bacteria from the patient's mouth from entering the mouthwash bottle. A dustproof cap 2 is located outside the suction port to prevent infection of the bottle opening before use. Two fastening plates 2-1 are located next to the dust cover 2. Because the bottle openings of mouthwash bottles, although similar in shape, are not of fixed specifications, a torsion spring 2-2 is designed with a central axle through the fastening plate 2-1. This allows the ratchet 2-4 at the end of the fastening plate 2-1 to hook onto the bottle opening ring 2-5, thus securing the bottle cap structure to the bottle opening. After use or when inserting into the mouthwash bottle, the fastening plate handle 2-3 can be squeezed, causing the fastening plate 2-1 to overcome the rotational force of the torsion spring 2-2 and open, allowing the sealing structure to be opened or used. An exhaust pipe 1-3 is designed at the base of the insertion needle 1-1. The exhaust pipe 1-3 has a one-way valve 1-4 and a dust mask 1-5 at its end. When the patient drinks the mouthwash, air enters the bottle body 3 through the exhaust pipe 1-3. When encountering a soft mouthwash bottle, the incoming air fills the space created by the loss of liquid, thus ensuring that the bottle body 3 does not deform.

[0041] The anti-backflow sealed bottle cap structure of this technical solution is mainly used in the field of mouthwash sealing and preservation. However, it is understood that in practical applications, the actual application of this structure is not limited to mouthwash bottles, but also includes other sealed bottles with the same structural type. Similar structural designs should be included within the scope of protection claimed by this technical solution.

[0042] The anti-backflow sealed bottle cap structure of this utility model can effectively solve the problem of mouthwash being difficult to reuse. It ensures that patients are protected from dust and pollution during use, thereby effectively saving medical resources and economic losses, avoiding unnecessary waste of resources, improving the quality of medication and treatment effects for patients, and has certain practical value.

[0043] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. An anti-backflow hermetic bottle cap structure, characterized by comprising: The bottle cap structure comprises: A dustproof pipe (1) is provided with a dustproof cover (2) at the top, and the inside of the dustproof pipe (1) is used for placing a plug needle (1-1), and the plug needle (1-1) is used for inserting into the rubber plug bottle opening of a bottle body (3).

2. The anti-regurgitation closed bottle cap structure according to claim 1, characterized by A one-way valve (1-2) is arranged at the head of the plug needle (1-1), and the one-way valve (1-2) is used for controlling the one-way flow direction of the liquid in the bottle, so as to prevent the backflow of the liquid.

3. The anti-regurgitation closed bottle cap structure according to claim 1, characterized by An exhaust pipe (1-3) is arranged at the head of the plug needle (1-1), and the end of the exhaust pipe (1-3) is provided with a one-way air valve (1-4), when the liquid in the bottle begins to drop, the one-way air valve (1-4) is used for exhausting the external air into the bottle body (3) through the exhaust pipe (1-3), so as to ensure the air pressure balance in the bottle body (3).

4. The anti-regurgitation closed bottle cap structure according to claim 3, characterized by The top of the one-way air valve (1-4) is provided with a dustproof mask (1-5) for blocking the external dust.

5. The anti-regurgitation closed bottle cap structure according to claim 1, characterized by The two sides of the dustproof cover (2) are provided with fastening plates (2-1), the fastening plates (2-1) are connected with fastening plate pinch hands (2-3) through torsional springs (2-2), the torsional springs (2-2) are used for fixing the ratchet back spurs (2-4) of the fastening plates (2-1) on the bottle opening ring (2-5) of the bottle body (3), so that the bottle cap structure is fixedly connected with the bottle body (3).