A sealed lid having a respirator

Abstract

The utility model relates to the technical field of sealing cover, specifically relates to a sealing cover with respirator, it includes the cover body for with bottle body screw connection, the column cavity is integrally formed in the cover body inside, the respirator is inserted into in the column cavity, and the respirator is used for maintaining bottle body pressure balance and impedes the contaminant into bottle body, the position integrally formed with the column cavity has the pull ring at the top of cover body, and the pull ring is used for opening the top sealing area of cover body and then exposes the respirator located below it. The utility model solves the technical problem that the existing sealing cover is difficult to automatically exhaust pressure relief when heating bottle body, and manual pressure relief operation is easy to destroy the sterile environment in the bottle.

Description

Technical Field

[0001] This utility model relates to the field of sealing cap technology, and more specifically, it relates to a sealing cap with a respirator. Background Technology

[0002] In the fields of medicine, biology, and chemical engineering, pharmaceuticals, culture media (such as agar), or high-purity reagents are typically stored in well-sealed bottles to prevent contamination and spoilage from external environmental factors (such as oxygen, moisture, and microorganisms). Many reagents require heat treatment (such as water bath heating, microwave heating, or other methods of reconstitution) before use. Traditional sealed bottle caps commonly present the following problems in this process: (1) Difficulty in releasing pressure due to heat: When the sealed bottle is heated, the air and contents inside the bottle expand due to heat, causing the internal pressure to rise sharply, which can easily cause the bottle to deform, bulge or even burst, posing a safety risk.

[0003] (2) High risk of contamination: In order to solve the problem of increased pressure, operators sometimes use non-standard operations, such as loosening or removing the bottle cap in advance to release air. This will expose the contents of the bottle to the non-sterile environment, allowing microorganisms and particulate matter in the air to enter the bottle, contaminating the product, causing waste and serious safety hazards. Therefore, there is an urgent need in the market for a sealing cap structure that can be integrated into the bottle cap body, which can ensure good sealing performance to guarantee the sterility and stability of the contents, automatically release pressure and exhaust gas aseptically when heated, and is easy to operate. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sealing cap with a respirator to solve the technical problems that existing sealing caps are difficult to automatically vent and depressurize when heating the bottle, and that manual depressurization operation is easy to destroy the sterile environment inside the bottle.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A sealing cap with a respirator includes a cap body for threaded connection to a bottle body, an integrally formed cylindrical cavity inside the cap body, a respirator inserted into the cylindrical cavity, the respirator being used to maintain pressure balance inside the bottle and prevent contaminants from entering the bottle body; a pull ring is integrally formed on the top of the cap body at a position corresponding to the cylindrical cavity, the pull ring being used to open the top sealing area of ​​the cap body to expose the respirator located below it.

[0006] Preferably, the respirator includes a plunger tightly inserted into the column cavity, with an air passage opening at the top of the plunger, and a sterile filter membrane disposed above the air passage, the sterile filter membrane being attached to the top surface of the plunger.

[0007] Preferably, an annular easy-open groove is provided on the inner side of the top of the cover to facilitate the opening of the top sealing area of ​​the cover by the pull ring.

[0008] Preferably, the connection between the pull ring and the cover is located inside the annular easy-open groove, so that when the pull ring is pulled open, a circular notch is formed in the top sealing area of ​​the cover.

[0009] Preferably, the cap body has an integrally formed sealing ring for inserting into the bottle mouth, and the sealing ring is located on the outside of the cylindrical cavity.

[0010] Preferably, a sealing groove for accommodating the bottle mouth is formed between the sealing ring and the side wall of the cap, and an annular sealing gasket is provided in the sealing groove.

[0011] Preferably, the outer wall of the cover is provided with anti-slip texture.

[0012] In summary, this utility model has the following beneficial effects: (1) Safe pressure relief and prevention of deformation: By installing a breather in the cylinder cavity of the cap, its air passage can become a pressure relief channel for the internal high-pressure gas when the bottle is heated, which can effectively balance the pressure inside and outside the bottle, avoid the bottle from expanding, deforming or being damaged due to excessive heat and pressure, and eliminate safety hazards. (2) Maintaining a sterile environment: The sterile filter membrane can reliably intercept microorganisms and particulate pollutants in the outside air during the gas exchange process, eliminating the problem of destroying the sterile environment due to opening the bottle cap in advance in traditional operations. It is especially suitable for scenarios with high cleanliness requirements such as culture media and reagents. (3) Simple and efficient operation: The pull ring with an annular easy-open groove design allows for manual opening and precise exposure of the respirator without tools, making operation convenient. It can be opened before heating without manual intervention during the heating process, simplifying the procedure. (4) Reliable sealing: The threaded connection combined with the sealing ring and the annular sealing gasket forms a multi-layer seal, ensuring the storage stability of the contents in a non-heated state. (5) Facilitates production: The cover components are integrally molded and the respirator is plugged in and assembled, which is easy to mass-produce. The anti-slip texture on the outside also improves the safety during operation. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of this novel embodiment.

[0015] Figure 3 This is an exploded view of the new implementation.

[0016] In the diagram: 1. Cap; 11. Column cavity; 12. Pull ring; 13. Annular easy-open groove; 14. Sealing ring; 15. Sealing groove; 16. Anti-slip texture; 2. Breather; 21. Plunger; 211. Air duct; 22. Sterilizing filter membrane; 3. Annular sealing gasket; 4. Bottle body. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] This utility model provides a sealing cap with a respirator, such as Figure 1-3 As shown, it includes a cap 1 for threaded connection with a bottle body 4. The cap 1 has an integrally formed cylindrical cavity 11 inside, and a respirator 2 is inserted into the cylindrical cavity 11. The respirator 2 is used to maintain the pressure balance inside the bottle body 4 and prevent contaminants from entering the bottle body 4. A pull ring 12 is integrally formed on the top of the cap 1 at a position corresponding to the cylindrical cavity 11. The pull ring 12 is used to open the top sealing area of ​​the cap 1 to expose the respirator 2 located below it.

[0020] Specifically, the core component of the sealing cap is the cap body 1, typically made of medical-grade polypropylene (PP) or polyethylene (PE), a plastic with good chemical stability and biocompatibility, and manufactured integrally through injection molding. The inner wall of the cap body 1 is machined with internal threads (not shown in the figure) for screwing into the external threads at the bottle opening (usually glass or plastic) to achieve reliable mechanical fixation. At the center of the cap body 1, a cylindrical cavity 11 extends downwards integrally. The diameter of this cavity 11 is slightly smaller than the inner diameter of the bottle opening, and its depth is designed according to actual needs. A key improvement is that an independent respirator 2 is tightly inserted into this cavity 11 with an interference fit.

[0021] Furthermore, the respirator 2 includes a plunger 21 tightly inserted into the column cavity 11, with an air passage 211 opened at the top of the plunger 21, and a sterile filter membrane 22 disposed above the air passage 211, the sterile filter membrane 22 being attached to the top surface of the plunger 21.

[0022] Furthermore, an annular easy-open groove 13 is provided on the inner side of the top of the cover 1 to facilitate the pull ring 12 to open the top sealing area of ​​the cover 1.

[0023] Furthermore, the connection between the pull ring 12 and the cover 1 is located inside the annular easy-open groove 13, so that when the pull ring 12 is pulled open, a circular notch is formed in the top sealing area of ​​the cover 1.

[0024] See Figure 1-3 The respirator 2 is specifically constructed as follows: its main body is a T-shaped cylindrical plunger 21, preferably made of a highly elastic material (such as medical-grade silicone or bromobutyl rubber). One or more air passages 211 are located at the center of the top of the plunger 21, with a pore size that allows gas to pass slowly while effectively blocking liquids. A circular sterile filter membrane 22 is tightly attached to or heat-welded to the top surface of the plunger 21. This sterile filter membrane 22 is typically made of hydrophobic polytetrafluoroethylene (PTFE) or polyethersulfone (PES), with a pore size typically around 0.22 micrometers, capable of efficiently filtering out bacteria, viruses, and particulate contaminants from the air while allowing air to pass smoothly. The core function of the respirator 2 is to achieve sterile exhaust and pressure relief through gas exchange during heating of the bottle and its contents, preventing expansion and deformation due to increased internal pressure, while maintaining an effective sterile barrier to prevent environmental contamination.

[0025] To protect the respirator 2 from contamination or damage during transportation and storage, and to ensure initial sealing, the top of the cover 1 is designed with an openable sealing structure. In the area corresponding to the internal cylindrical cavity 11 at the top of the cover 1, a circular top sealing area is defined by an annular easy-open groove 13 (inverted V-shape, with a thickness less than the surrounding cover material, forming a mechanical weak point). A pull ring 12 is integrally formed on the inner side of this sealing area through one or more connection points. Normally, this area remains completely closed, completely sealing the respirator 2 inside and isolating it from the external environment. Upon first use, the operator simply pulls the pull ring 12 upwards with their fingers; the applied force will cause it to break at the annular easy-open groove 13. The connection between the pull ring 12 and the cover 1 is located inside the annular easy-open groove 13, ensuring that when opened, the top sealing area of ​​the cover 1 forms a regular circular notch, precisely exposing the sterile filter membrane 22 in the respirator 2 directly below. The entire opening process requires no tools, is simple and quick, and has smooth edges that do not produce debris.

[0026] Furthermore, the cap 1 has an integrally formed sealing ring 14 for inserting into the bottle mouth of the bottle body 4, and the sealing ring 14 is located on the outside of the column cavity 11.

[0027] Furthermore, a sealing groove 15 is formed between the sealing ring 14 and the side wall of the cap 1 for accommodating the bottle mouth of the bottle body 4, and an annular sealing gasket 3 is provided in the sealing groove 15.

[0028] Furthermore, the outer wall of the cover 1 is provided with anti-slip texture 16.

[0029] See Figure 1-3 To provide superior sealing performance, the cap body 1 also incorporates multiple integral sealing structures. A cylindrical sealing ring 14 extends downwards from the inside of the cap body 1, located on the periphery of the cylindrical cavity 11. Its outer diameter matches the inner diameter of the bottle mouth, allowing it to be inserted into the bottle mouth to form the first sealing barrier. An annular sealing groove 15 is formed between the sealing ring 14 and the inner wall of the cap body 1. An O-ring annular sealing gasket 3 (typically made of silicone or EPDM rubber) is tightly placed within this sealing groove 15. When the cap body 1 is tightened, the bottle mouth of the bottle body 4 is embedded in this sealing groove 15, compressing the annular sealing gasket 3, thereby forming a reliable radial and apical seal, effectively preventing liquid leakage and the intrusion of external contaminants.

[0030] In addition, anti-slip textures 16 are provided on the outer side wall of the cover 1. These textures can be stripes, dots, or other uneven structures, and their main function is to increase friction, making it easier for users (especially when wearing gloves) to tighten or loosen the cover 1, ensuring convenient and reliable operation.

[0031] The working principle and advantages of this utility model are as follows: During storage and transportation, the sealing area at the top of the cap 1 remains intact, the respirator 2 is sealed inside, and the entire bottle 4 is completely sealed, providing optimal protection for the contents. Before heating the contents (such as reconstitution of agar medium), the user simply pulls up the pull ring 12 to open the top channel and expose the respirator 2; there is no need to loosen or remove the entire sealing cap. During heating, the air and liquid inside the bottle expand due to heat, increasing the internal pressure. When the pressure exceeds the external atmospheric pressure, the internal gas can be discharged through the air vent 211 on the plunger 21 of the respirator 2. The discharged gas must pass through the sterile filter membrane 22, which effectively prevents aerosol contamination of the environment by the contents of the bottle. Conversely, when heating and cooling cease, a negative pressure forms inside the bottle, and external air must first pass through the sterile filter membrane 22 to become sterile air before entering the bottle, thus balancing the negative pressure. The entire pressure equalization process is completed under sterile conditions, preventing the bottle from deforming due to pressure imbalance and completely avoiding the risk of contamination introduced in traditional operations. This ingenious design highly integrates the breathing function with the sealing and opening function, making it extremely easy to operate, safe, and reliable, and ideal for applications with stringent sterility requirements.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sealing cap with a respirator, characterized in that: The device includes a cap for threaded connection to a bottle body, an integrally formed cylindrical cavity inside the cap body, a respirator inserted into the cylindrical cavity, the respirator being used to maintain pressure balance inside the bottle and prevent contaminants from entering the bottle body; and an integrally formed pull ring at the top of the cap body and at a position corresponding to the cylindrical cavity, the pull ring being used to open the top sealing area of ​​the cap body to expose the respirator located below it.

2. The sealing cap according to claim 1, characterized in that: The respirator includes a plunger that is tightly inserted into the column cavity. An air passage is provided on the top of the plunger, and a sterile filter membrane is provided above the air passage. The sterile filter membrane is attached to the top surface of the plunger.

3. The sealing cap according to claim 1, characterized in that: An annular easy-open groove is provided on the inner side of the top of the cover to facilitate the opening of the top sealing area of ​​the cover by the pull ring.

4. The sealing cap according to claim 1, characterized in that: The connection between the pull ring and the cover is located inside the annular easy-open groove, which makes it easy for a circular notch to be formed in the top sealing area of ​​the cover when the pull ring is pulled open.

5. The sealing cap according to claim 1, characterized in that: The cap has an integrally formed sealing ring inside for insertion into the bottle mouth, and the sealing ring is located on the outside of the cylindrical cavity.

6. The sealing cap according to claim 5, characterized in that: A sealing groove is formed between the sealing ring and the side wall of the cap to accommodate the bottle mouth, and an annular sealing gasket is provided in the sealing groove.

7. The sealing cap according to claim 1, characterized in that: The outer wall of the cover has anti-slip texture.

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