Switchable fermentation bag

By designing a switchable fermentation bag containing a fermentation chamber and an anaerobic chamber, and utilizing a connecting structure and a self-sealing strip to control gas exchange, the problem that fermentation bags cannot provide aerobic fermentation followed by anaerobic fermentation is solved, achieving a more efficient fermentation effect.

CN223866628UActive Publication Date: 2026-02-03ZHONGBANG CARBON ENERGY (JIANGSU) TECH CO LTD
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Patent Information

Application Number
CN202520296233.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-03
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing fermentation bags cannot provide an aerobic-then-anaerobic fermentation mode, which limits their practicality.

Method used

A switchable fermentation bag was designed, which includes a fermentation chamber and an anaerobic chamber. The connection between the two is controlled by a connecting structure, and a self-sealing strip and a connecting valve are provided to achieve switching of the fermentation environment.

Benefits of technology

This creates an aerobic-anaerobic fermentation environment for the fermenting material, improving the practicality and fermentation efficiency of the fermentation bag.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fermentation bags, and provides a switchable fermentation bag which comprises a bag body, the bag body is provided with a fermentation cavity and an anaerobic cavity, and a communication structure for controlling whether the fermentation cavity is communicated with the anaerobic cavity is arranged between the fermentation cavity and the anaerobic cavity; the top of the anaerobic cavity is provided with an imbedding opening for an external anaerobic bag to enter the anaerobic cavity, and the imbedding opening is provided with a first self-sealing strip. According to the technical scheme, the problem that a fermentation bag cannot provide a fermentation mode of first aerobic fermentation and then anaerobic fermentation for a fermented product in the prior art is solved.
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Description

Technical Field

[0001] This utility model relates to the field of fermentation bag technology, specifically to a switchable fermentation bag. Background Technology

[0002] Fermentation bags are generally a type of tool used for fermentation. They are usually made of food-grade plastic or heat-resistant materials and mainly serve to provide a closed and stable environment to promote the growth of microorganisms and the fermentation process.

[0003] Currently, although an anaerobic environment can be created inside the fermentation bag by placing an anaerobic bag inside, this method can only be used before fermentation begins. This results in a single fermentation environment inside the fermentation bag, making it difficult to provide an aerobic-to-anaerobic fermentation mode (aerobic in the early stage of fermentation and anaerobic in the later stage) according to actual experimental and production needs. This limits the practicality of fermentation bags. Utility Model Content

[0004] This invention proposes a switchable fermentation bag, which solves the problem in related technologies that fermentation bags cannot provide an aerobic-anaerobic fermentation mode for the fermented material.

[0005] The technical solution of this utility model is as follows:

[0006] A switchable fermentation bag includes a bag body, the bag body having a fermentation chamber and an anaerobic chamber, and a communication structure between the fermentation chamber and the anaerobic chamber for controlling whether the fermentation chamber and the anaerobic chamber are connected; the top of the anaerobic chamber has an inlet for allowing an external anaerobic bag to enter the anaerobic chamber, and the inlet has a first self-sealing strip.

[0007] Furthermore, the bag body includes an inlet and outlet that connects to the fermentation chamber, and the connecting structure is located between the anaerobic chamber and the inlet and outlet.

[0008] Furthermore, the communication structure includes a communication pipe and a communication valve for controlling whether the communication pipe is in a connected state.

[0009] Furthermore, a filter membrane is provided between the anaerobic chamber and the fermentation chamber, and a second self-sealing strip is provided between the filter membrane and the first self-sealing strip.

[0010] Furthermore, the second self-sealing strip is provided with an auxiliary extension for easy opening by the operator.

[0011] Furthermore, the connecting structure is located between the first self-sealing strip and the second self-sealing strip.

[0012] Furthermore, the bag body is provided with a plurality of lifting semi-rings, each of which is symmetrically and evenly distributed around the bag body as the center.

[0013] The working principle and beneficial effects of this utility model are as follows:

[0014] The bag in this invention is equipped with a fermentation chamber and an anaerobic chamber. A connecting structure is provided between the fermentation chamber and the anaerobic chamber to control whether the two are connected. That is, under normal circumstances (when the connecting structure is not activated), the fermentation chamber and the anaerobic chamber are not connected to each other, so that the fermented material in the fermentation chamber can carry out aerobic fermentation normally.

[0015] Meanwhile, the anaerobic chamber is equipped with an inlet for supplying external anaerobic bags into the anaerobic chamber. The inlet is equipped with a first self-sealing strip so that after the anaerobic bag is placed into the anaerobic chamber, the inlet is closed by the first self-sealing strip, making the anaerobic chamber a closed chamber structure. Then, the connecting structure is activated so that the air in the anaerobic chamber can interact with the air in the fermentation chamber, consuming the oxygen inside the bag and thus enabling the fermentation material inside the bag to undergo anaerobic fermentation. This provides an aerobic-then-anaerobic fermentation environment for the fermentation material inside the fermentation chamber, which is more practical than traditional fermentation bags with a single fermentation environment. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of Example 1;

[0018] Figure 2 This is a schematic diagram of the internal structure of the bag in Example 1;

[0019] Figure 3 This is a schematic diagram of the structure of Example 2;

[0020] Figure 4 This is a schematic diagram of the internal structure of the bag in Example 2.

[0021] In the picture:

[0022] 1. Bag body; 11. Fermentation chamber; 12. Anaerobic chamber; 121. Inlet / outlet; 13. Inlet / outlet; 14. Lifting half-ring; 2. Connecting structure; 21. Connecting pipe; 22. Connecting valve; 3. First self-sealing strip; 4. Second self-sealing strip; 41. Auxiliary extension; 5. Filter membrane. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] like Figures 1-2 As shown in the figure, this embodiment proposes a switchable fermentation bag, mainly including a bag body 1. The bag body 1 is provided with a fermentation chamber 11 and an anaerobic chamber 12, that is, the bag body 1 has two chambers inside. Among them, the top of the anaerobic chamber 12 is provided with an inlet 121 for the external anaerobic bag to enter the anaerobic chamber 12. The inlet 121 is provided with a first self-sealing strip 3, that is, the anaerobic chamber 12 can present a self-sealing bag structure. After the external anaerobic bag is placed into the anaerobic chamber 12, the inlet is sealed by the first self-sealing strip 3, so that the anaerobic chamber 12 is a closed chamber structure, thereby allowing the anaerobic bag located in the anaerobic chamber 12 to absorb oxygen in the anaerobic chamber 12.

[0026] Meanwhile, a communication structure 2 is provided between the fermentation chamber 11 and the anaerobic chamber 12 to control whether the fermentation chamber 11 and the anaerobic chamber 12 are connected. Specifically, the communication structure 2 includes a communication pipe 21 and a communication valve 22 for controlling whether the communication pipe 21 is in a connected state. That is, a communication pipe 21 is provided between the fermentation chamber 11 and the anaerobic chamber 12 to connect the two, and the communication pipe 21 is equipped with a communication valve 22 for determining whether the fluid in the anaerobic chamber 12 can enter the fermentation chamber 11 along the communication pipe 21. Both ends of the communication pipe 21 are fixedly connected to the bag body 1 itself.

[0027] In detail, when the connecting valve 22 is closed (connecting structure 2 is not activated), the gas in the fermentation chamber 11 cannot interact with the anaerobic bag in the anaerobic chamber 12 along the connecting pipe 21, keeping the fermentation environment of the fermenting material inside the fermentation chamber 11 aerobic. However, when the connecting valve 22 is open (connecting structure activated), the gas in the fermentation chamber 11 can interact with the anaerobic bag in the anaerobic chamber 12 along the connecting pipe 21, allowing the anaerobic bag to react with the gas in the fermentation chamber 11, reducing the oxygen concentration inside the bag, and thus converting the fermentation environment of the fermenting material inside the fermentation chamber 11 to an anaerobic fermentation environment. Providing an aerobic-then-anaerobic fermentation environment for the fermenting material inside the fermentation chamber 11 is more practical than traditional single-environment fermentation bags.

[0028] Preferably, in this embodiment, the connecting pipe 21 is made of a relatively hard material such as plastic to ensure the stability of the connecting pipe 21 itself.

[0029] The bag body 1 includes an inlet and outlet integrated port 13 that connects to the fermentation chamber 11. The inlet and outlet integrated port 13 is equipped with a sealing cap that can be threadedly connected to itself. That is, after the material to be fermented is added into the fermentation chamber 11, the sealing cap is used to isolate the connection channel between the fermentation chamber 11 and the external environment, so that the fermentation chamber 11 can present a closed cavity structure and ensure the stability of the fermentation work.

[0030] Preferably, the anaerobic chamber 12 and the inlet / outlet 13 are both located at the top of the fermentation chamber 11, and the connecting structure 2 is located between the anaerobic chamber 12 and the inlet / outlet 13. That is, the connecting path between the connecting pipe 21, the inlet / outlet 13, and the fermentation chamber 11 can present a horizontal "T" shape. In this way, when there is no excessive fermentation material in the fermentation chamber 11 and the bag 1 itself is in a static state, the fermentation material in the fermentation chamber 11 is difficult to enter the anaerobic chamber 12 along the connecting pipe 21, so as to prevent the fermentation material and the anaerobic bag from contaminating each other.

[0031] The bag body 1 is provided with a number of lifting half rings 14. Each lifting half ring 14 is symmetrically and evenly distributed around the bag body 1 and is integrally formed with the bag body 1. The presence of each lifting half ring 14 makes it convenient for staff to lift this embodiment, thereby facilitating the movement of this embodiment.

[0032] Example 2

[0033] Based on Example 1, such as Figures 3-4 As shown, in this embodiment, a filter membrane 5 is provided between the anaerobic chamber 12 and the fermentation chamber 11. That is, compared with embodiment 1, the anaerobic bag in this embodiment can also interact with the fermented material in the fermentation chamber 11 through the filter membrane 5, effectively expanding the interaction area between the anaerobic chamber 12 and the fermentation chamber 11, increasing the oxygen consumption rate in the fermentation chamber 11, and thus accelerating the switching speed between the aerobic fermentation environment and the anaerobic fermentation environment.

[0034] In this embodiment, the filter membrane 5 is preferably a waterproof and breathable membrane such as an ePTEE membrane.

[0035] Meanwhile, to prevent external air from entering the fermentation chamber 11 along the anaerobic chamber 12 when staff open the inlet 121 (first self-sealing strip 3) to insert the anaerobic bag into the anaerobic chamber 12, a second self-sealing strip 4 is provided between the filter membrane 5 and the first self-sealing strip 3 in this embodiment. That is, through the cooperation between the first self-sealing strip 3 and the second self-sealing strip 4, a transfer chamber is formed in the anaerobic chamber 12. After the anaerobic bag enters the transfer chamber through the inlet 121, the first self-sealing strip 3 is closed, and then the second self-sealing strip 4 is opened, so that the anaerobic bag located in the transfer chamber falls onto the filter membrane 5. In this way, it can effectively prevent external oxygen from directly passing through the filter membrane 5 and contacting the fermentation material in the fermentation chamber 11 when the first self-sealing strip 3 is opened, thus ensuring the stability of the fermentation work.

[0036] The connecting structure 2 is located between the first self-sealing strip 3 and the second self-sealing strip 4, which ensures that there is sufficient distance between the anaerobic bag located in the anaerobic chamber 12 (on the filter membrane 5) and the opening of the connecting tube 21 in the anaerobic chamber 12, so that the anaerobic chamber 12 has enough space for storing the anaerobic bag and effectively prevents the anaerobic bag in the anaerobic chamber 12 from entering or blocking the connecting tube 21.

[0037] Meanwhile, since prying open the second self-sealing strip 4 by pulling on the bag body 1 can easily damage the bag body 1 itself, the second self-sealing strip 4 is provided with an auxiliary extension 41 for easy opening by the operator. This allows the operator to open the second self-sealing strip 4 by pulling the auxiliary extension 41, improving the ease and flexibility of use. Preferably, the auxiliary extension 41 extends from the junction between the second self-sealing strip 4 and the bag body 1, ensuring that the second self-sealing strip 4 can be opened directly when the auxiliary extension 41 is pulled.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A switchable fermentation bag, comprising a bag body (1), characterized in that, The bag body (1) is provided with a fermentation chamber (11) and an anaerobic chamber (12), and a communication structure (2) is provided between the fermentation chamber (11) and the anaerobic chamber (12) for controlling whether the fermentation chamber (11) and the anaerobic chamber (12) are connected; The top of the anaerobic chamber (12) is provided with an inlet (121) for allowing external anaerobic bags to enter the interior of the anaerobic chamber (12), and the inlet (121) is provided with a first self-sealing strip (3).

2. The switchable fermentation bag according to claim 1, characterized in that, The bag body (1) includes an inlet and outlet (13) that connects to the fermentation chamber (11), and the connecting structure (2) is located between the anaerobic chamber (12) and the inlet and outlet (13).

3. The switchable fermentation bag according to claim 1 or 2, characterized in that, The connection structure (2) includes a connecting pipe (21) and a connecting valve (22) for controlling whether the connecting pipe (21) is in a connected state.

4. The switchable fermentation bag according to claim 3, characterized in that, A filter membrane (5) is provided between the anaerobic chamber (12) and the fermentation chamber (11), and a second self-sealing strip (4) is provided between the filter membrane (5) and the first self-sealing strip (3).

5. The switchable fermentation bag according to claim 4, characterized in that, The second self-sealing strip (4) is provided with an auxiliary extension (41) for the convenience of the staff to pull it open.

6. The switchable fermentation bag according to claim 4, characterized in that, The connecting structure (2) is located between the first self-sealing strip (3) and the second self-sealing strip (4).

7. The switchable fermentation bag according to claim 1, characterized in that, The bag body (1) is provided with a plurality of lifting half rings (14), and each lifting half ring (14) is symmetrically and evenly distributed with the bag body (1) as the center.