Auricularia auricula hypha low-temperature breeding incubator with three-temperature-zone gradient regulation and control

Abstract

The utility model relates to an auricularia auricula hypha low-temperature breeding incubator with three-temperature-zone gradient regulation and control, which comprises a layered temperature control box body, a fungus stick rotating frame and a temperature closed-loop system, the layered temperature control box body comprises a high-temperature-zone box body (24-26 DEG C), a transition-zone box body (21.5-22.5 DEG C) and a low-temperature-zone box body (19.7-20.3 DEG C) which are sequentially divided from top to bottom, a plurality of groups of ultraviolet lamps are arranged on the two side walls of the low-temperature area box body, the mushroom stick rotating frame is arranged in the layered temperature control box body and used for placing mushroom sticks, and temperature area switching is achieved through a lifting mechanism; and the temperature closed-loop system comprises a temperature sensor and a temperature control module and is used for adjusting the temperature of each temperature area of the layered temperature control box body. The device has the effects that the gradient temperature of the three temperature zones is accurately regulated and controlled, the temperature zones of the mushroom sticks are automatically switched, the ultraviolet mutagenesis environment is stably supplied, and the breakage rate of the mushroom sticks is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of edible fungi production equipment technology, and in particular to a low-temperature selection and cultivation box for black fungus mycelium with three-temperature-zone gradient control. Background Technology

[0002] As an important edible and medicinal fungus, the selection of low-temperature-adaptable strains of black fungus is crucial for expanding cultivation areas and increasing yields. Low-temperature stress and ultraviolet mutagenesis are core techniques for inducing mycelial resistance variations, requiring the simulation of a gradient temperature field in the natural environment—"high-temperature germination → transitional adaptation → low-temperature selection"—combined with ultraviolet irradiation to promote mutation. Therefore, developing specialized equipment with precise temperature gradient control, dynamic culture of mycelium, and integrated mutagenesis environment has become an important requirement in the field of black fungus breeding.

[0003] Currently, most existing edible fungi cultivation equipment has a single temperature zone structure, which can only provide a fixed temperature environment and achieve multi-stage cultivation by manually transferring the fungal substrate. It cannot automatically build a continuous temperature gradient and lacks a physical mutagenesis module that works in conjunction with temperature stress.

[0004] The existing technical solutions mentioned above have the following drawbacks: Although a single-temperature zone incubator can meet the basic culture requirements of mycelium, it still has the following drawbacks in the low-temperature breeding scenario of black fungus:

[0005] Firstly, the lack of temperature gradient construction makes it impossible to achieve gradient division and automatic switching between high-temperature, transition, and low-temperature zones, making it difficult to simulate vertical temperature changes in the natural environment. This results in mycelia not being able to undergo continuous low-temperature stress processes, leading to low efficiency in inducing stress resistance mutations.

[0006] Secondly, the uniformity of the mushroom cultivation is insufficient. The design of the fixed support causes uneven heating and light exposure in some areas of the mushroom sticks. Especially under ultraviolet irradiation, differences in mycelial growth are likely to occur, affecting the consistency of the breeding results.

[0007] Third, the integration of the mutagenesis environment is insufficient, the layout of ultraviolet lamps is simple or the power is insufficient, which makes it impossible to achieve uniform irradiation of the surface of the mushroom sticks, and additional mutagenesis equipment is required, which increases the complexity of operation and equipment costs. Utility Model Content

[0008] To address the shortcomings of existing technologies, the purpose of this invention is to provide a low-temperature breeding incubator for black fungus mycelium with three-zone gradient control, which features precise temperature control in three-zone gradients, automatic switching of temperature zones for the mycelium, stable supply of ultraviolet mutagenesis environment, and effective reduction of mycelium breakage rate.

[0009] The above-mentioned utility model objective is achieved through the following technical solution:

[0010] A three-temperature-zone gradient-controlled low-temperature culture chamber for the selection and cultivation of Auricularia auricula-judae mycelium includes a layered temperature-controlled chamber, a rotating rack for mycelium logs, and a closed-loop temperature system.

[0011] The layered temperature control chamber is divided into a high-temperature zone chamber, a transition zone chamber, and a low-temperature zone chamber from top to bottom. Multiple sets of ultraviolet lamps are installed on the two side walls of the low-temperature zone chamber.

[0012] The mushroom stick rotating rack is installed inside the layered temperature control box to hold the mushroom sticks, and the temperature zone switching is realized through the lifting mechanism.

[0013] The temperature closed-loop system includes a temperature sensor and a temperature control module. The temperature control module controls the temperature of the high-temperature zone chamber to be between 24℃ and 26℃, the temperature of the transition zone chamber to be between 21.5℃ and 22.5℃, and the temperature of the low-temperature zone chamber to be between 19.7℃ and 20.3℃.

[0014] Through the above technical solution, the layered temperature control chamber is divided into three temperature gradient zones to provide a suitable temperature environment for black fungus mycelium at different growth stages. The low-temperature zone is equipped with ultraviolet lamps to provide a mutagenic environment for low-temperature mycelium selection. The rotating trellis of the mycelium, together with the lifting mechanism, realizes the switching of the temperature zone of the mycelium, meeting the needs of temperature gradient stress during mycelium selection. The temperature closed-loop system ensures that the temperature of each temperature zone is stable within the set range, improving the success rate of mycelium selection. The ultraviolet lamp in the low-temperature zone provides a mutagenic environment to promote mycelial mutation.

[0015] As a further technical solution of this utility model: the lifting mechanism includes a driving device and a guide rod.

[0016] The drive device is located at the bottom of the low-temperature zone chamber;

[0017] One end of the guide rod is connected to the output shaft of the drive device, and the other end is fixed to the top of the high-temperature zone chamber, with the rod body penetrating through the transition zone chamber.

[0018] The mushroom stick rotating frame is sleeved on the guide rod and electrically connected to the driving device. The driving device is used to drive the mushroom stick rotating frame to achieve vertical lifting and lowering.

[0019] Through the above technical solution, the lifting mechanism composed of the drive device and the guide rod can accurately control the vertical lifting and lowering of the mushroom stick rotating frame between the three temperature zones, realize the transfer of mushroom sticks under different temperature environments, and allow the mycelium to undergo a complete temperature gradient stress process, promoting its adaptive variation; the guide rod passes through the three temperature zone boxes and is fixed, providing stable guidance for the lifting and lowering of the mushroom stick rotating frame, ensuring a smooth lifting and lowering process, and avoiding damage caused by the mushroom stick shaking or shifting.

[0020] As a further technical solution of this utility model: the top of the mushroom stick rotating frame is provided with a rotation drive assembly for driving it to rotate around the guide rod.

[0021] Through the above technical solution, the rotation drive component drives the mushroom stick rotation frame to rotate around the guide rod, so that the mushroom stick receives environmental factors such as temperature and light (such as ultraviolet light in the low temperature zone) evenly in all directions within the same temperature zone, avoiding local growth differences of the mushroom stick, ensuring the consistency and uniformity of mycelial growth, and improving the breeding effect.

[0022] As a further technical solution of this utility model: heat-conducting baffles are provided between the high-temperature zone box and the transition zone box, and between the transition zone box and the low-temperature zone box.

[0023] By using the above technical solution, heat-conducting baffles can be set between adjacent temperature zone chambers to balance the heat transfer between temperature zones to a certain extent, avoid excessive heat isolation between temperature zones leading to sudden temperature gradient changes, and affect mycelial growth; at the same time, it can prevent excessive heat conduction from causing mutual temperature interference between temperature zones, ensure the stability and independence of the temperature of each temperature zone, and maintain an ideal gradient temperature environment.

[0024] As a further technical solution of this utility model: the thermally conductive partition is composed of two layers of polycarbonate plates sandwiching a hollow honeycomb cavity, and the cavity is filled with thermally conductive silicone grease.

[0025] Through the above technical solution, the thermally conductive partition adopts a structure of two layers of polycarbonate plates sandwiching a hollow honeycomb cavity and filling it with thermally conductive silicone grease. It makes full use of the mechanical properties of polycarbonate, the thermal conductivity of thermally conductive silicone grease, and the structural advantages of the honeycomb cavity. While ensuring the strength of the partition, it achieves moderate heat conduction within the temperature range, effectively maintains a stable temperature gradient, and meets the special temperature environment requirements for the cultivation of black fungus mycelium.

[0026] As a further technical solution of this utility model: the heat-conducting partition plate has an opening that matches the outer diameter of the mushroom stick rotating frame, and a sealing element is provided at the opening.

[0027] The sealing element dynamically opens and closes as the mushroom stick rotating frame moves. When the mushroom stick rotating frame passes through the opening, the sealing element opens; after the mushroom stick rotating frame passes through the opening, the sealing element closes.

[0028] Through the above technical solution, the opening and sealing parts on the heat-conducting partition that match the outer diameter of the mushroom stick rotating frame open when the mushroom stick rotating frame passes through, without affecting the normal lifting and rotating movement of the rotating frame; after passing through, the sealing parts close, effectively preventing air flow and heat transfer between temperature zones, ensuring temperature stability in each temperature zone, maintaining a precise temperature gradient, and preventing external dust and other impurities from entering the incubator and contaminating the culture environment.

[0029] As a further technical solution of this utility model: the mushroom stick rotating frame is provided with multiple sets of support frames in the circumference, and each end of the support frame is provided with a fixing clip for fixing the mushroom stick.

[0030] Through the above technical solution, the multiple sets of support frames with fixing clips arranged circumferentially on the mushroom stick rotating frame can firmly fix the mushroom sticks, prevent the mushroom sticks from falling or shifting during the lifting and rotation of the rotating frame, ensure the stability of the mushroom sticks during the cultivation process, and ensure that the mycelium can grow normally and accept selective treatment; at the same time, the multiple sets of support frames are evenly distributed, so that the mushroom sticks are subjected to uniform force, avoiding damage to the mushroom sticks due to uneven force.

[0031] As a further technical solution of this utility model: four sets of ultraviolet lamps are respectively installed on the two side walls of the low temperature zone chamber.

[0032] Through the above technical solution, four sets of ultraviolet lamps are installed on each of the two side walls of the low-temperature zone chamber, for a total of eight sets. This enhances the light intensity in the low-temperature zone, providing sufficient light conditions for the black fungus mycelium, which is beneficial for promoting photosynthesis and pigment synthesis of the mycelium, thereby improving the quality and biological efficiency of the mycelium. At the same time, the reasonable layout of the ultraviolet lamps ensures more uniform illumination, guaranteeing that all parts of the mycelium receive uniform light.

[0033] In summary, this utility model has at least one of the following beneficial technical effects:

[0034] 1. This utility model discloses a three-temperature-zone gradient-controlled low-temperature culture chamber for black fungus mycelium cultivation. By setting up a layered temperature control chamber (high temperature zone / transition zone / low temperature zone), a rotating frame for mycelium logs, and a temperature closed-loop system, combined with a low-temperature zone UV lamp array, it achieves precise control of the three-temperature-zone gradient temperature, switching of mycelium log temperature zones, and a stable supply of UV mutagenesis environment, thus meeting the environmental requirements of the entire cycle of low-temperature cultivation of black fungus mycelium.

[0035] 2. This utility model discloses a low-temperature selection and cultivation box for black fungus mycelium with three-temperature gradient control. It realizes the vertical lifting and circumferential rotation of the mushroom stick rotation frame and the firm fixation of the mushroom stick through the driving device, the lifting mechanism of the guide rod, the rotation driving component and the circumferential fixed clamp support frame, so as to ensure that the mushroom stick is stable in position, uniformly stressed and uniformly receives environmental stimulation during the temperature zone switching process.

[0036] 3. This utility model discloses a low-temperature selection and cultivation box for black fungus mycelium with three-temperature gradient control. It achieves controllable heat conduction and dynamic isolation between temperature zones through thermally conductive partitions (polycarbonate hollow honeycomb structure + thermally conductive silicone grease) and dynamic sealing components between adjacent temperature zones, thereby ensuring the stability of the temperature gradient while reducing heat leakage and external pollution during the temperature rise and fall process. Attached Figure Description

[0037] Figure 1 This is a front view of a three-temperature-zone gradient-controlled low-temperature culture box for the selection and cultivation of black fungus mycelium, according to Embodiment 1 of this utility model.

[0038] Figure 2 The attached figure shows a top view of a rotating frame for mycelium logs in a three-temperature-zone gradient-controlled low-temperature culture chamber for the cultivation of black fungus mycelium, according to Embodiment 1 of this utility model. Reference numerals are: 1. Layered temperature control chamber; 11. High-temperature zone chamber; 12. Transition zone chamber; 13. Low-temperature zone chamber; 2. Rotating frame for mycelium logs; 21. Support frame; 22. Fixing clamp; 3. Ultraviolet lamp; 4. Lifting mechanism; 41. Drive device; 42. Guide rod; 5. Rotation drive assembly; 6. Heat-conducting partition; 7. Sealing element. Detailed Implementation

[0039] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] Example 1:

[0043] Reference Figure 1 This utility model discloses a three-temperature-zone gradient-controlled low-temperature culture box for black fungus mycelium, which includes a layered temperature control box 1, a fungus stick rotating rack 2, and a temperature closed-loop system.

[0044] The layered temperature control chamber 1 is divided into a high-temperature zone chamber 11, a transition zone chamber 12, and a low-temperature zone chamber 13 from top to bottom. The temperature closed-loop system includes a temperature sensor and a temperature control module. The temperature control module controls the temperature of the high-temperature zone chamber 11 to be between 24℃ and 26℃, the temperature of the transition zone chamber 12 to be between 21.5℃ and 22.5℃, and the temperature of the low-temperature zone chamber 13 to be between 19.7℃ and 20.3℃.

[0045] The tiered temperature control chamber 1 can be made of materials with good thermal insulation properties, such as polyurethane foam board, to reduce heat transfer and loss and ensure independent and stable temperature in each zone. The high-temperature zone chamber 11, the transition zone chamber 12, and the low-temperature zone chamber 13 are separated by a thermally conductive partition 6 to ensure that the temperature zones do not interfere with each other. The low-temperature zone chamber 13 has four sets of ultraviolet lamps 3 (eight sets in total) evenly spaced on both side walls, preferably with a wavelength of 275nm and a power of 5W / set, used to evenly cover the surface of the mycelium to induce mutation.

[0046] The mushroom stick rotating rack 2 is set inside the layered temperature control box 1 to place the mushroom sticks. It achieves temperature zone switching and uniform cultivation through a dual-function drive of lifting and rotation.

[0047] Reference Figure 1 The vertical lifting of the mushroom stick rotating frame 2 is achieved by the lifting mechanism 4 to realize the automatic switching of the mushroom in different temperature zones. The lifting mechanism 4 includes a drive device 41 and a guide rod 42. The drive device 41 is set at the bottom of the low temperature zone box 13. One end of the guide rod 42 is connected to the output shaft of the drive device 41, and the other end is fixed to the top of the high temperature zone box 11. The rod of the guide rod 42 transitions to the box 12. The mushroom stick rotating frame 2 is connected to the drive device 41 and sleeved on the guide rod 42. The vertical lifting is achieved by the drive device 41.

[0048] The circumferential rotation of the mushroom log rotating frame 2 is driven by the rotation drive assembly 5 to rotate around the central axis of the guide rod 42, ensuring that the mushroom logs are uniformly heated and exposed to light. The rotation drive assembly 5 can be a geared motor or a rotary cylinder (such as a miniature DC geared motor), which provides stable rotational power (adjustable speed of 3-5 r / min to suit mycelial growth needs) to drive the mushroom log rotating frame 2 to rotate around the central axis of the guide rod 42, ensuring that the surface of the mushroom logs is uniformly heated and exposed to light. The installation position of the rotation drive assembly 5 should ensure that the axis of rotation coincides with the central axis of the guide rod 42 to ensure the stability and uniformity of the rotation of the mushroom log rotating frame 2. During actual operation, after the temperature closed-loop system's control system issues a rotation command, the micro DC geared motor starts and transmits power to the mushroom stick rotating frame 2 through a synchronous belt transmission mechanism, causing it to rotate around the guide rod 42. During the rotation, the deep groove ball bearing at the contact position between the mushroom stick rotating frame 2 and the guide rod 42 effectively reduces frictional resistance, making the rotation smoother. At the same time, a photoelectric encoder can be set to monitor the rotation status (angle, time) in real time. When the set parameters are reached, the motor automatically stops, completing precise rotation control.

[0049] Reference Figure 2 The mushroom log rotating frame 2 is equipped with multiple sets of support frames 21 around its circumference. The support frames 21 are equipped with fixing clips 22 for fixing the mushroom logs. The support frames 21 can be made of plastic or metal, and their shape is designed to be circular or arc-shaped according to the shape and size of the mushroom logs. They are firmly connected to the mushroom log rotating frame 2 by welding, threading, or snap-fit. The size of the fixing clips 22 matches the diameter of the mushroom logs, and the depth and width can be adjusted according to the specifications of the mushroom logs. The inner side of the fixing clips 22 can be made of elastic rubber material with a smooth surface and anti-slip texture, which can adapt to mushroom logs of different diameters, ensuring a firm fixation and avoiding damage to the mushroom logs, while improving the space utilization of the incubator.

[0050] The temperature sensor uses a high-precision DS18B20 model, characterized by high temperature measurement accuracy and good stability. It collects temperature data from each temperature zone in real time and transmits the data to the temperature control module (using an STM32 controller). The temperature control module, based on a preset temperature range, uses a PID algorithm to control the operating status of components such as the heating wire, semiconductor cooling module, and semiconductor cooling chip, achieving precise temperature regulation. The system can also be equipped with a display screen to show the real-time temperature data for each zone, facilitating operator monitoring.

[0051] The dimensions of the thermally conductive partition 6 match the internal cross-sectional dimensions of the layered temperature control chamber 1. Sealing strips are provided around its perimeter to ensure a tight fit with the side walls of the chamber 1, preventing heat leakage from the edges of the partition 6. The thermally conductive partition 6 consists of two layers of polycarbonate sheets and a hollow honeycomb cavity in the middle. The polycarbonate sheets have good light transmittance and mechanical strength, and can withstand a certain amount of pressure. Thermally conductive silicone grease is filled into the hollow honeycomb cavity, filling the tiny gaps inside and improving heat transfer efficiency.

[0052] The heat-conducting baffle 6 has an opening that matches the outer diameter of the mushroom stick rotating frame 2. A sealing element 7 is installed at the opening. The sealing element 7 dynamically opens and closes with the movement of the mushroom stick rotating frame 2. The mushroom stick rotating frame 2 opens when it passes through the sealing element 7 and closes after it passes through the sealing element 7. The design of the sealing element 7 reduces heat transfer between temperature zones and external contamination. The shape and size of the opening of the heat-conducting baffle 6 should precisely match the outer diameter of the mushroom stick rotating frame 2, and the edges should be smooth and burr-free to reduce wear on the sealing element 7. A guide structure can be provided at the opening to facilitate the smooth passage of the mushroom stick rotating frame 2. An annular groove is provided on the heat-conducting baffle 6 around the opening for installing the sealing element 7.

[0053] The seal 7 is made of silicone rubber (Shore hardness 50A), which has good elasticity, high temperature resistance (temperature range -60℃ to 200℃), and aging resistance. The seal 7 has a lip-shaped structure; one end of the seal 7 is fixed to the annular groove in the heat-conducting partition 6 with high-temperature adhesive, while the other end is free, forming a sealing lip. In its natural state, the seal 7 is tightly fitted to the outer surface of the mushroom stick rotating frame 2, forming a seal. When the mushroom stick rotating frame 2 passes through the opening, the seal 7 is compressed and deformed, temporarily opening the channel; after the mushroom stick rotating frame 2 passes, the seal 7 returns to its original shape due to its own elasticity, closing again to achieve a seal. To improve the sealing effect, a thin layer of silicone oil can be applied to the surface of the seal 7 to reduce the coefficient of friction and reduce wear on the seal 7.

[0054] On the mushroom stick rotating frame 2, a guide ring is installed at the position corresponding to the sealing element 7. The guide ring can be made of polytetrafluoroethylene (PTFE), which has a low coefficient of friction and good wear resistance. The outer diameter of the guide ring is the same as the outer diameter of the mushroom stick rotating frame 2, which can guide the sealing element 7 to open and close smoothly, while protecting the sealing element 7 from being scratched. When the mushroom stick rotating frame 2 approaches the opening, the guide ring first contacts the sealing element 7, causing the sealing element 7 to gradually deform and open; after the mushroom stick rotating frame 2 passes, the guide ring disengages from the sealing element 7, and the sealing element 7 quickly returns to the closed state.

[0055] This invention relates to the breeding process of black fungus strains:

[0056] First, prepare the mushroom sticks. Insert the inoculated mushroom sticks (5cm in diameter and 15cm in length) into the fixing clips 22 of the circumferential support frame 21 of the mushroom stick rotating frame. Each frame can hold 12 mushroom sticks.

[0057] Then the temperature gradient switches:

[0058] Germination stage (0-24h): The drive device 41 raises the mushroom stick rotating frame 2 to the high temperature zone (25℃±1℃), and the rotating drive component 5 rotates at a rate of 5r / min to promote rapid mycelial germination;

[0059] Transition phase (24-48h): The mushroom log rotating rack 2 is lowered to the transition zone (22℃±0.5℃), and the rotation speed is adjusted to 3r / min to simulate the gradual change of ambient temperature;

[0060] Selection and breeding stage (48-72h): The mushroom log rotating rack 2 is lowered to the low temperature zone (20℃±0.3℃), and at the same time, 8 sets of ultraviolet lamps 3 are turned on (6h of daily irradiation, cumulative intensity 100μW / cm). 2 ·h), induce cold-resistance mutations.

[0061] Temperature control: The DS18B20 sensor provides real-time feedback on the temperature of each zone, and the STM32 controller adjusts the power of the semiconductor cooling chip through a PID algorithm to ensure that the temperature fluctuation is ≤ ±0.2℃.

[0062] Breeding results: After three generations of cyclic breeding, the mycelium of "Heifeng No. 1" grew at a rate of 9.8 mm / d (7.0 mm / d for the original strain) at a low temperature of 20℃, with a 40% improvement in cold resistance and a mushroom stick breakage rate of <0.5% (approximately 3% for traditional equipment).

[0063] The implementation principle of this utility model is as follows: a three-temperature gradient (high temperature zone 24℃~26℃, transition zone 21.5℃~22.5℃, and low temperature zone 19.7℃~20.3℃) is constructed through a layered temperature control box 1. Between adjacent temperature zones, a thermally conductive partition 6 consisting of a hollow honeycomb cavity filled with thermally conductive silicone grease sandwiched between two layers of polycarbonate plates achieves controllable heat conduction. The sealing element 7 at the opening of the thermally conductive partition 6 dynamically switches with the mushroom stick rotating frame 2 to reduce heat transfer between temperature zones. Simultaneously, the mushroom stick rotating frame 2, through a bottom drive device 41 cooperating with a guide rod 42, achieves vertical lifting and lowering to switch temperature zones. The top of the mushroom stick rotating frame 2... The rotation drive assembly 5 drives the mycelium to rotate circumferentially around the guide rod 42 at a speed of 3-5 r / min, so that the mycelium is evenly heated and exposed to light. The elastic rubber fixing clip 22 of the circumferential support frame 21 is used to fix the mycelium to prevent displacement and damage. The eight sets of 275nm ultraviolet lamps 3 on both sides of the low temperature zone box 13 provide mutagenic light. The temperature closed-loop system (DS18B20 sensor + STM32 controller) adjusts the temperature in real time (error ≤ ±0.3℃), simulating the process of "high temperature germination → transitional adaptation → low temperature screening", inducing the resistance variation of black fungus mycelium, and realizing efficient low temperature breeding.

[0064] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator, characterized in that, Includes a tiered temperature-controlled chamber (1), a mushroom log rotating rack (2), and a closed-loop temperature system. The layered temperature control chamber (1) is divided into a high-temperature zone chamber (11), a transition zone chamber (12) and a low-temperature zone chamber (13) from top to bottom. Multiple sets of ultraviolet lamps (3) are provided on the two side walls of the low-temperature zone chamber (13). The mushroom stick rotating rack (2) is set inside the layered temperature control box (1) for placing mushroom sticks, and the temperature zone switching is realized through the lifting mechanism (4); The temperature closed-loop system includes a temperature sensor and a temperature control module. The temperature control module controls the temperature of the high-temperature zone chamber (11) to be between 24°C and 26°C, the temperature of the transition zone chamber (12) to be between 21.5°C and 22.5°C, and the temperature of the low-temperature zone chamber (13) to be between 19.7°C and 20.3°C.

2. The three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator according to claim 1, characterized in that, The lifting mechanism (4) includes a drive device (41) and a guide rod (42). The drive device (41) is located at the bottom of the low-temperature zone chamber (13); One end of the guide rod (42) is connected to the output shaft of the drive device (41), and the other end is fixed to the top of the high temperature zone box (11), and the rod body of the guide rod (42) passes through the transition zone box (12); The mushroom stick rotating frame (2) is sleeved on the guide rod (42) and electrically connected to the driving device (41). The driving device (41) is used to drive the mushroom stick rotating frame (2) to achieve vertical lifting.

3. The three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator according to claim 2, characterized in that, The top of the mushroom stick rotating frame (2) is provided with a rotation drive assembly (5) for driving it to rotate around the guide rod (42).

4. The three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator according to claim 1, characterized in that, A heat-conducting baffle (6) is provided between the high-temperature zone box (11) and the transition zone box (12), and between the transition zone box (12) and the low-temperature zone box (13).

5. The three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator according to claim 4, characterized in that, The thermally conductive partition (6) is composed of two layers of polycarbonate plates sandwiching a hollow honeycomb cavity, and the cavity is filled with thermally conductive silicone grease.

6. The three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator according to claim 4, characterized in that, The heat-conducting partition (6) has an opening that matches the outer diameter of the mushroom stick rotating frame (2), and a sealing element (7) is provided at the opening. The sealing element (7) is dynamically opened and closed as the mushroom stick rotating frame (2) moves. When the mushroom stick rotating frame (2) passes through the opening, the sealing element (7) opens; after the mushroom stick rotating frame (2) passes through the opening, the sealing element (7) closes.

7. The three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator according to claim 1, characterized in that, The mushroom stick rotating frame (2) is provided with multiple sets of support frames (21) around its circumference, and each end of the support frame (21) is provided with a fixing clip (22) for fixing the mushroom stick.

8. The three-temperature zone gradient-controlled Auricularia auricula-judae mycelium low-temperature selection incubator according to claim 1, characterized in that, The two side walls of the low-temperature zone chamber (13) are each equipped with 4 sets of ultraviolet lamps (3).

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