Ventilated and breathable high-yield bacteria bag

Abstract

The utility model relates to the technical field of edible mushroom cultivation, and disclose a ventilation and ventilation high -yield fungus bag, including bag body, bag body is formed by the composite of outer layer waterproof membrane and inner layer breathable film, and the bag body side evenly distributes and has the ventilation structure, and the bag body opening is equipped with sealing assembly and filter device, and the bag body bottom is equipped with support base. This ventilation and ventilation high -yield fungus bag is through the composite film structure and multilayer ventilation design, solved the problem that traditional fungus bag is bad, easy to pollute, the problem of moisture -retention effect is not good, realized the dynamic balance of ventilation and moisture retention, significantly improved the output and quality of edible mushroom.

Description

Technical Field

[0001] This utility model relates to the field of edible fungi cultivation technology, specifically to a ventilated and breathable high-yield mushroom bag. Background Technology

[0002] Mushroom bags are a crucial carrier for edible mushroom cultivation; their air permeability, moisture retention, and pollution resistance directly affect mycelial growth rate, fruiting rate, and product quality. Currently, traditional mushroom bags suffer from the following technical deficiencies: The contradiction between breathability and moisture retention: Traditional mushroom bags are mostly made of a single polyethylene film. If the breathability is improved, the number of openings needs to be increased, which can easily lead to excessive moisture evaporation. If the number of openings is reduced, ventilation will be insufficient, causing mycelial hypoxia and the growth of miscellaneous bacteria, making it difficult to achieve a balance between ventilation and moisture retention.

[0003] High risk of contamination: The ventilation holes of existing mushroom bags are mostly directly connected to the outside world, lacking effective filtration devices. Miscellaneous bacteria spores in the air can easily enter the bag with the airflow, leading to an increased contamination rate, especially in high temperature and high humidity cultivation environments.

[0004] Poor structural stability: Traditional mushroom bags are soft and easily tip over when filled with culture medium, affecting the spatial distribution of mycelial growth; moreover, the bottom of the bag is under concentrated stress, making it easy to break and leak material, increasing production costs.

[0005] Therefore, it is necessary to develop a more ventilated and breathable high-yield mushroom bag to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a ventilated and breathable high-yield bacterial bag to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a ventilated and breathable high-yield bacterial bag, comprising a bag body, wherein the bag body is a double-layer composite structure, consisting of an outer waterproof membrane and an inner breathable membrane, wherein a gas buffer cavity is formed between the outer waterproof membrane and the inner breathable membrane; breathable structures are evenly distributed on the side of the bag body, a sealing component is provided at the opening of the bag body, a filter device is provided inside the sealing component, and a support base is fixedly connected to the bottom of the bag body.

[0008] Furthermore, the breathable structure includes vents and a dustproof breathable membrane. The vents penetrate the outer waterproof membrane and extend to the gas buffer chamber. The dustproof breathable membrane covers the corresponding position on the inner side of the inner breathable membrane. The vents are spirally distributed along the height of the bag. The spirally distributed vents allow for uniform exchange of airflow inside and outside the bag. The gas buffer chamber reduces the direct impact of external airflow on the microenvironment inside the bag. The dustproof breathable membrane effectively blocks the entry of bacteria.

[0009] Furthermore, the diameter of the vent is 0.5-1mm, the spacing between adjacent vents is 3-5cm, the dustproof and breathable membrane is a sterile filter membrane with a pore size of 0.22μm, and the edge of the dustproof and breathable membrane is connected to the inner breathable membrane by heat sealing. This size design can ensure gas exchange efficiency and prevent the culture medium moisture from evaporating too quickly. The 0.22μm pore size filter membrane can completely block bacteria and fungal spores.

[0010] Furthermore, the outer waterproof membrane is made of polyethylene film with a thickness of 0.04-0.06 mm, and the inner breathable membrane is made of polypropylene microporous membrane with a thickness of 0.02-0.03 mm. The micropore diameter of the inner breathable membrane is 10-20 μm. The outer polyethylene membrane has excellent waterproofness and mechanical strength, and the inner polypropylene microporous membrane can realize the permeation of moisture and gas exchange between the inside and outside of the bag, maintaining humidity balance.

[0011] Furthermore, the sealing assembly includes a sealing clip and a sealing strip. The sealing clip is a U-shaped plastic clip, and the sealing strip is fixed to the inner clamping surface of the sealing clip. The sealing clip is provided with an adjustment buckle. The clamping force of the sealing clip can be adjusted by the adjustment buckle, which, together with the sealing strip, achieves a tight seal at the bag opening, while facilitating opening for inoculation and observation.

[0012] Furthermore, the filtration device includes a filter cylinder and an activated carbon filter layer. The filter cylinder is a hollow cylindrical structure, with one end connected to a sealing component and the other end extending into the bag body. The activated carbon filter layer is located in the middle section of the filter cylinder, and the surface of the filter cylinder is distributed with air-permeable mesh holes. The filter cylinder can guide the directional flow of gas, and the activated carbon filter layer can adsorb bacteria and harmful gases in the air, further improving the purity of the incoming air.

[0013] Furthermore, the support base is a circular rigid plastic disc with an upward-protruding edge forming an annular retaining edge. The bottom surface of the support base has anti-slip textures. The support base is fixed to the bottom of the bag by heat pressing. The support base can enhance the stability of the mushroom bag and prevent it from tipping over. The annular retaining edge can collect condensate. The anti-slip textures increase the friction with the placement surface and improve the overall structural reliability.

[0014] Compared with the prior art, this utility model provides a ventilated and breathable high-yield bacterial bag, which has the following beneficial effects: Achieving a dynamic balance between ventilation and moisture retention: Through a double-layer composite membrane structure and a spiral pore design, the outer waterproof membrane reduces moisture evaporation, the inner breathable membrane promotes gas exchange, and the gas buffer chamber reduces airflow impact. This solves the problem of traditional mushroom bags being unable to balance breathability and moisture retention, maintaining the relative humidity inside the bag in the optimal range of 85-90% and keeping the oxygen content above 18%.

[0015] Significantly reduced contamination rate: The dual filtration design of a 0.22μm sterile filter membrane and an activated carbon filter layer can effectively block more than 99.9% of miscellaneous bacterial spores. At the same time, the filter cartridge guides the directional flow of gas, reducing the attachment of miscellaneous bacteria caused by airflow disturbance. The contamination rate is reduced from 15-20% of traditional mushroom bags to below 3%.

[0016] Improved structural stability: The design of the support base and the ring-shaped edge increases the upright stability of the mushroom bag by more than 60%, avoiding uneven mycelial growth caused by tipping over; the double-layer membrane structure increases the tear resistance of the bag by 40%, reducing damage and leakage, and lowering production costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bag structure of this utility model; Figure 3 This is a schematic diagram of the support base structure of this utility model; Figure 4 This is a schematic diagram of the filter device structure of this utility model.

[0018] In the diagram: 1. Bag body; 11. Outer waterproof membrane; 12. Inner breathable membrane; 13. Gas buffer chamber; 2. Breathable structure; 21. Ventilation hole; 22. Dustproof breathable membrane; 3. Sealing assembly; 31. Sealing clip; 32. Sealing strip; 33. Adjusting buckle; 4. Filter device; 41. Filter cylinder; 42. Activated carbon filter layer; 43. Breathable mesh; 5. Support base; 51. Circular edge; 52. Anti-slip texture. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0021] Please see Figure 1-4 This utility model provides a technical solution: a ventilated and breathable high-yield bacterial bag, including a bag body 1, which is a cylindrical structure with openings at the top and bottom, and adopts a double-layer composite membrane design. The outer waterproof membrane 11 is made of high-pressure polyethylene film (PE film) with a thickness of 0.05mm, which has excellent waterproofness and flexibility; the inner breathable membrane 12 is made of polypropylene microporous membrane (PP film) with a thickness of 0.025mm, and its surface is distributed with micropores with a diameter of 15μm, which can both allow air to pass through and allow a small amount of water vapor to pass through; the edges of the outer waterproof membrane 11 and the inner breathable membrane 12 are heat-sealed to form a gas buffer cavity 13 with a thickness of 2-3mm.

[0022] The side of the bag body 1 is evenly distributed with a breathable structure 2, which includes vent holes 21 and a dustproof breathable membrane 22. The vent holes 21 have a diameter of 0.8 mm, penetrate the outer waterproof membrane 11 and extend to the gas buffer chamber 13 (without penetrating the inner breathable membrane 12), and are arranged in a spiral shape along the height direction of the bag body 1. The adjacent vent holes 21 are 4 cm apart in the height direction and staggered by 60° in the circumferential direction. The dustproof breathable membrane 22 is a sterile polytetrafluoroethylene filter membrane with a pore size of 0.22 μm, cut into a circle with a diameter of 1 cm, and fixed to the inner side of the inner breathable membrane 12 at the position corresponding to the vent holes 21 by heat sealing. The edge heat sealing width is 0.2 cm to ensure reliable sealing.

[0023] A sealing component 3 is installed at the top of the bag body 1. The sealing component 3 includes a U-shaped plastic sealing clip 31 and a silicone sealing strip 32. The sealing clip 31 is made of PP material and its length matches the diameter of the bag body 1. A semi-circular sealing strip 32 (diameter 3mm) is pasted on the inner clamping surface. One end of the sealing clip 31 is provided with an adjustment buckle 33. The clamping force can be changed by rotating the adjustment buckle.

[0024] A filter device 4 is connected to the inside of the sealing assembly 3. The filter device 4 includes a hollow cylindrical filter cylinder 41, which is made of food-grade PP material and has 1mm diameter air-permeable mesh holes 43 evenly distributed on its surface. A 1cm thick activated carbon filter layer 42 is built into the middle section of the filter cylinder 41. The outer end of the filter cylinder 41 is connected to the center of the inner side of the sealing assembly 3, and the inner end extends into the inside of the bag body 1.

[0025] The bottom of the bag body 1 is fixed with a support base 5 by heat pressing. The support base 5 is a circular rigid PP plastic plate with a diameter matching the bag body 1. The edge protrudes upward to form an annular guard 51 with a height of 1cm. The bottom surface is pressed with a grid-like anti-slip texture 52 to enhance the stability of placement.

[0026] Working principle: When using this ventilated and high-yield culture bag, first fill the prepared culture medium into the bag body 1, with the filling height being 2 / 3 of the bag height. The support base 5 makes the culture bag stand stably upright on the culture rack, and the annular baffle 51 can prevent the culture medium at the bottom from falling out.

[0027] After filling, sterilization is performed. During sterilization, the double-layer membrane structure and the breathable structure 2 can withstand high-temperature steam sterilization at 121℃. The dustproof and breathable membrane 22 will not produce harmful substances at high temperatures. After sterilization and cooling, the sealing component 3 is opened for inoculation. After inoculation, the sealing clip 31 is closed, and the clamping force is adjusted by adjusting the buckle 33 to ensure that the sealing strip 32 fits tightly against the bag opening, achieving a reliable seal.

[0028] During the mycelial cultivation stage, outside air enters the gas buffer chamber 13 through the vents 21 of the breathable structure 2. After being buffered, it passes through the micropores of the inner breathable membrane 12 and the dustproof breathable membrane 22 into the bag body 1. At the same time, gases such as carbon dioxide inside the bag are discharged through the reverse path, achieving gas exchange. The gas buffer chamber 13 can reduce the impact of external airflow fluctuations on the microenvironment inside the bag, the dustproof breathable membrane 22 effectively blocks the entry of external bacteria, and the activated carbon filter layer 42 further purifies the gas entering from the bag opening. This dual filtration ensures a sterile environment.

[0029] When the humidity inside the bag is high, some water vapor can permeate through the micropores of the inner breathable membrane 12 into the gas buffer chamber 13, and then be blocked and condensed by the outer waterproof membrane 11, forming a local water circulation and reducing water loss; when the humidity is low, the condensed water can permeate back into the bag to maintain humidity balance and keep the relative humidity inside the bag stable at 85-90%.

[0030] During the fruiting stage, the ventilation volume can be adjusted by adjusting the tightness of the sealing component 3 to meet the oxygen requirements of the fruiting bodies. The support base 5 ensures that the mushroom bag remains stable during the fruiting process and prevents it from tipping over due to the increased weight of the mushrooms; the anti-slip texture 52 increases the friction with the cultivation rack and adapts to the placement requirements in humid environments.

[0031] After harvesting, the mushroom bags can be reused 2-3 times through disinfection, reducing production costs. Compared with traditional mushroom bags, this invention significantly improves the yield and quality of edible fungi, and has good economic benefits and application prospects.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof 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 elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A high yield aerated and ventilated bacterial bag, characterized in that, The bag includes a bag body (1), which is a double-layer composite structure consisting of an outer waterproof membrane (11) and an inner breathable membrane (12). A gas buffer chamber (13) is formed between the outer waterproof membrane (11) and the inner breathable membrane (12). Breathable structures (2) are evenly distributed on the side of the bag body (1). A sealing component (3) is provided at the opening of the bag body (1). A filter device (4) is provided inside the sealing component (3). A support base (5) is fixedly connected to the bottom of the bag body (1).

2. The ventilated and breathable high-yield bacterial bag according to claim 1, characterized in that, The breathable structure (2) includes a vent (21) and a dustproof breathable membrane (22). The vent (21) penetrates the outer waterproof membrane (11) and extends to the gas buffer chamber (13). The dustproof breathable membrane (22) covers the inner side of the inner breathable membrane (12) at the corresponding position. The vent (21) is spirally distributed along the height direction of the bag body (1).

3. The high-yield aeration bag according to claim 2, wherein, The diameter of the ventilation hole (21) is 0.5-1mm, the spacing between adjacent ventilation holes (21) is 3-5cm, the dustproof and breathable membrane (22) is a sterile filter membrane with a pore size of 0.22μm, and the edge of the dustproof and breathable membrane (22) is connected to the inner breathable membrane (12) by heat sealing.

4. The high-yield aeration bag according to claim 1, wherein, The outer waterproof membrane (11) is a polyethylene film with a thickness of 0.04-0.06 mm, and the inner breathable membrane (12) is a polypropylene microporous membrane with a thickness of 0.02-0.03 mm. The micropore diameter of the inner breathable membrane (12) is 10-20 μm.

5. The high-yield aeration bag according to claim 1, wherein, The sealing assembly (3) includes a sealing clip (31) and a sealing strip (32). The sealing clip (31) is a U-shaped plastic clip, and the sealing strip (32) is fixed on the inner clamping surface of the sealing clip (31). The sealing clip (31) is provided with an adjustment buckle (33).

6. The high-yield aeration bag according to claim 1, wherein, The filtration device (4) includes a filter cylinder (41) and an activated carbon filter layer (42). The filter cylinder (41) is a hollow cylindrical structure, with one end connected to the sealing component (3) and the other end extending into the bag body (1). The activated carbon filter layer (42) is located in the middle section of the filter cylinder (41), and the surface of the filter cylinder (41) is covered with breathable mesh holes (43).

7. The high-yield aeration bag according to claim 1, wherein, The support base (5) is a circular hard plastic disc. The edge of the support base (5) protrudes upward to form an annular guard (51). The bottom surface of the support base (5) is provided with anti-slip texture (52). The support base (5) is fixed to the bottom of the bag body (1) by heat pressing.

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