A breathable flap device for soybean protein solid fermentation bed

Abstract

This application relates to a breathable flipping device for a soybean protein solid-state fermentation bed, belonging to the technical field of flipping devices. It includes a fermentation box equipped with a temperature and humidity control device. One end of the fermentation box is open, and a closed door is hinged to the open end. Synchronous motors are fixed to the opposite outer walls of the fermentation box, and support rods are provided on the opposite inner walls. The output shaft of the synchronous motor is fixedly connected to the adjacent support rod. A sliding groove is provided on one side of each support rod, and a frame is provided between two support rods. The sliding rod facing outward from the sliding groove is fixedly connected to the frame. A tray is connected inside the frame, and a cover plate is hinged to the frame. A snap-fit ​​assembly is provided at the end of the cover plate away from the hinge, which can be snapped and fixed to the frame. Both the cover plate and the tray plate have ventilation holes. This application has the effect of improving the efficiency of soybean protein fermentation.

Description

Technical Field

[0001] This application relates to the technical field of flipping devices, and in particular to a breathable flipping device for a soybean protein solid fermentation bed. Background Technology

[0002] Soybean protein solid-state fermentation bed is an environmentally friendly device that uses microbial solid-state fermentation technology to process soybean protein. It is mainly used to efficiently degrade agricultural waste, such as anti-nutritional factors in soybean meal, improve its protein digestibility and nutritional value, and produce high-quality feed or functional protein raw materials. At the same time, it can reduce waste pollution, realize resource recycling, and has both environmental and economic value.

[0003] The existing soybean protein solid-state fermentation bed mainly consists of three parts: support legs, a tray, and baffles. The device uses four support legs symmetrically fixed at the four corners of the tray's lower surface to form a stable support structure. Vertical baffles are welded to the four edges of the tray's upper surface, effectively enclosing the fermentation material. An openable cover is hinged to the upper part of the baffle on one side of the tray. An intelligent temperature and humidity control device is integrated into the lower surface of the cover, and multiple ventilation holes are evenly distributed on the cover surface to ensure air circulation. During fermentation, the mixture of soybean protein raw material and inoculum is first evenly spread on the tray. The cover is closed, and the temperature and humidity control device is activated to control the environmental parameters within the fermentation chamber. After the set fermentation cycle, the cover is opened, and the operator manually turns the fermented material over to prevent the material adhering to the tray from clumping due to gravity.

[0004] Regarding the aforementioned technologies, during the turning process in the middle of fermentation, workers need to manually turn the material using tools. This method is not only labor-intensive and time-consuming, but manual intervention can also lead to discontinuous fermentation, resulting in low fermentation efficiency of soybean protein. Utility Model Content

[0005] To improve the efficiency of soybean protein fermentation, this application provides a breathable flap device for a soybean protein solid fermentation bed.

[0006] The air-permeable flap device for soybean protein solid-state fermentation bed provided in this application adopts the following technical solution:

[0007] A permeable flap device for a soybean protein solid-state fermentation bed includes a fermentation box, a temperature and humidity control device inside the fermentation box, an open end to which a closed door is hinged, synchronous motors fixed on opposite outer walls of the fermentation box, and support rods on opposite inner walls of the fermentation box. The output shaft of the synchronous motor passes through one side wall of the fermentation box and is fixedly connected to the adjacent support rod. A sliding groove is formed along the length of the support rod on the side facing the inside of the fermentation box, passing through one side wall of the support rod. A sliding rod is slidably connected to the support rod within the groove. A blocking component for blocking the sliding rod is provided at the open end of the groove on the support rod. A frame is provided between the two support rods. The side of the sliding rod facing out of the groove is fixedly connected to the frame. A support plate is connected inside the frame. A cover plate is provided on the frame. One end of the cover plate is hinged to one side wall of the frame. A locking component for locking and fixing the cover plate away from the hinge is provided at the end of the cover plate away from the hinge. Ventilation holes are provided on both the cover plate and the support plate.

[0008] By adopting the above technical solution, the frame is first removed from the fermentation chamber, and the locking assembly is released from fixing the cover plate. After opening the cover plate, the mixture of soybean protein raw material and inoculum is evenly spread on the tray, and then the cover plate is closed and fixed by the locking assembly. When the frame is pushed back into the fermentation chamber, the sliding rod moves synchronously along the slide groove. When the frame reaches the set position, the blocking assembly automatically closes the slide groove opening to prevent the sliding rod from falling out. After closing the sealed chamber, the temperature and humidity control device is activated. The ventilation holes allow oxygen to enter the fermentation chamber formed by the tray, cover plate, and frame, ensuring aerobic respiration of the inoculum. During fermentation, the synchronous motor drives the support rod to rotate the frame 180 degrees, allowing the material to be transferred from the tray plate to the cover plate under gravity, thus achieving the rotation of the mixture. This effectively prevents the mixture from caking at the bottom and eliminates the need for manual rotation by operators, thereby improving the efficiency of soybean protein fermentation.

[0009] Optionally, the blocking assembly includes a baffle and an auxiliary plate. The length direction of the baffle and the support rod are perpendicular. The baffle is located at one end of the support rod and at the opening end of the slide groove. The end of the baffle near the support rod passes through one side wall of the slide groove. The baffle and the support rod are slidably connected. The auxiliary plate and the end of the baffle outside the slide groove are fixedly connected. A first spring is fixed between the auxiliary plate and the support rod.

[0010] By adopting the above technical solution, when the slide rod moves towards the inside of the slide groove, the baffle moves towards the outside of the slide groove. The baffle drives the auxiliary plate to move, and the first spring is stretched. After the slide rod moves into the slide groove as a whole, the baffle and the slide rod separate, the first spring contracts, and the auxiliary plate moves towards the support rod. The auxiliary plate drives the baffle to move. The end of the baffle away from the auxiliary plate abuts against the inner wall of the slide groove away from the auxiliary plate. At the same time, the baffle blocks the slide rod, making it difficult for the slide rod to move out of the slide groove from the opening end of the slide groove.

[0011] Optionally, the side wall of the baffle away from the auxiliary plate is configured as an inclined surface.

[0012] By adopting the above technical solution, during the process of the slide rod moving towards the slide groove, the end of the slide rod first contacts the inclined surface of the baffle and pushes the baffle to move outward from the slide groove. This eliminates the need for workers to manually pull the auxiliary plate away from the support rod, thus providing convenience for workers.

[0013] Optionally, a fixing block is fixedly provided at the end of the cover plate away from the hinge, and a moving groove is provided through the fixing block. The snap-fit ​​assembly includes a snap-fit ​​rod and a pull plate. One end of the snap-fit ​​rod extends into the moving groove, and the snap-fit ​​rod and the fixing block are slidably connected. The end of the snap-fit ​​rod outside the moving groove is fixedly connected to the pull plate. A connecting block is fixedly provided at the end of the frame away from the hinge with the cover plate, and a snap-fit ​​groove is provided on one side of the connecting block. The snap-fit ​​rod and the snap-fit ​​groove are snap-fitted and adapted.

[0014] By adopting the above technical solution, when opening the cover plate, the pull plate is pulled away from the fixed block. The pull plate drives the locking rod to move, and the end of the locking rod disengages from the locking groove, releasing the locking and fixing of the cover plate and the frame. During the process of opening the cover plate, laying the mixture, and closing the cover plate, the pull plate moves away from the fixed block. After the cover plate and the support plate are parallel, the locking rod and the locking groove are aligned. The pull plate moves towards the connecting block, and the pull plate drives the locking rod to move. The end of the locking rod engages in the locking groove, realizing the locking and fixing of the locking rod and the connecting block, and thus realizing the locking and fixing of the cover plate and the frame.

[0015] Optionally, a second spring is fixed between the pull plate and the fixing block, and the second spring is sleeved on the outside of the clamp rod.

[0016] By adopting the above technical solution, when the pull plate moves away from the fixed block, the second spring is stretched. After the locking rod and the locking slot are aligned, the second spring retracts, driving the pull plate to move towards the fixed block. The pull plate drives the locking rod to move. The setting of the second spring eliminates the need for the staff to manually move the pull plate towards the connecting block, thus providing convenience for the staff.

[0017] Optionally, the end of the lever away from the pull plate is configured as a bevel.

[0018] By adopting the above technical solution, during the closing process of the cover plate, the cover plate drives the fixed block to move, the fixed block drives the locking rod to move, and during the movement of the locking rod, the inclined surface of the locking rod first contacts the connecting block, and under the guidance of the connecting block, the locking rod moves away from the connecting block. The locking rod drives the pull plate to move, eliminating the need for the staff to manually pull the pull plate, thus providing convenience for the staff's work.

[0019] Optionally, a limiting plate is fixed at one end of the fermentation box and the closed door that are hinged together, an auxiliary rod is fixed on the side of the closed door facing the inside of the fermentation box, the auxiliary rod is horizontally set, and a supporting component of the supporting frame is provided at the end of the fermentation box away from the limiting plate.

[0020] By adopting the above technical solution, after the mixture fermentation is completed, the closed door is opened. When the closed door is rotated 90 degrees, the limiting plate abuts against the closed door, preventing the closed door from continuing to rotate. At this time, the length direction of the auxiliary rod is parallel to the length direction of the sliding rod, and the upper surface of the auxiliary rod and the bottom side wall of the slide are on the same horizontal plane. During the process of the frame moving out of the fermentation box, one of the two sliding rods slides onto the auxiliary rod, and the auxiliary rod supports the sliding rod. The sliding rod away from the auxiliary rod is supported by the bearing component. The setting of the auxiliary rod and the bearing component eliminates the need for staff to manually lift the frame, thus providing convenience for moving the frame outward.

[0021] Optionally, the supporting component includes a first supporting rod and a second supporting rod. One end of the first supporting rod is hinged to the inner wall of one side of the fermentation box. A displacement groove is formed on one side of the first supporting rod along its own length. A displacement block is slidably connected to the first supporting rod in the displacement groove. One end of the second supporting rod is hinged to the side of the displacement block facing out of the displacement groove. The end of the second supporting rod away from the displacement block is hinged to the bottom end of the fermentation box.

[0022] By adopting the above technical solution, after the closed door is opened, the second bearing rod is rotated towards the outside of the fermentation box. The second bearing rod drives the first bearing rod to move through the displacement block. At the same time, the displacement block moves in the displacement groove. When the length direction of the first bearing rod is parallel to the length direction of the support rod, the displacement block and the displacement groove abut against the side wall of the end away from the fermentation box. The second bearing rod supports the end of the first bearing rod away from the fermentation box, and at the same time, the first bearing rod supports the sliding rod away from the auxiliary rod.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By starting the synchronous motor, the synchronous motor drives the support rod to rotate, the support rod drives the slide rod to rotate, and the slide rod drives the frame to rotate. After the frame rotates 180 degrees, the mixture on the tray falls onto the cover plate due to gravity, thus realizing the rotation of the mixture. There is no need for staff to manually rotate the mixture, thereby improving the efficiency of soybean protein fermentation.

[0025] 2. The limiting plate restricts the rotation of the closed door, facilitating the parallelism of the auxiliary rod and support rod;

[0026] 3. The auxiliary rods and load-bearing components support the two sliding rods respectively, facilitating the movement of the frame outside the fermentation tank. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a breathable flap device for a soybean protein solid-state fermentation bed according to an embodiment of this application;

[0028] Figure 2 This is a cross-sectional view of the internal structure of the fermentation tank in the embodiments of this application;

[0029] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0030] Figure 4 This is a schematic diagram illustrating the structure of the blocking component in an embodiment of this application.

[0031] In the diagram, 1. Fermentation box; 11. Temperature and humidity control device; 12. Sealing door; 13. Synchronous motor; 14. Limiting plate; 15. Auxiliary rod; 2. Support rod; 21. Slide groove; 22. Slide rod; 23. First spring; 3. Blocking assembly; 31. Baffle; 32. Auxiliary plate; 4. Frame; 41. Support plate; 42. Cover plate; 43. Vent hole; 44. Second spring; 5. Snap-fit ​​assembly; 51. Locking rod; 52. Pull plate; 6. Fixing block; 61. Moving groove; 7. Connecting block; 71. Locking groove; 8. Bearing assembly; 81. First bearing rod; 811. Displacement groove; 812. Displacement block; 82. Second bearing rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] This application discloses a breathable flap device for a soybean protein solid fermentation bed.

[0034] refer to Figure 1 A permeable flap device for a soybean protein solid fermentation bed includes a fermentation box 1, one end of which is set as an opening. A closed door 12 is hinged to the opening end of the fermentation box 1. A limiting plate 14 is fixed to the side wall where the fermentation box 1 and the closed door 12 are hinged. A synchronous motor 13 is fixed to the outer walls on both opposite sides of the fermentation box 1.

[0035] During the process of opening the closed door 12, after the closed door 12 rotates 90 degrees, the closed door 12 and the limiting plate 14 come into contact, and the limiting plate 14 blocks the closed door 12, making it difficult for the closed door 12 to continue to rotate.

[0036] refer to Figure 1 , Figure 2 and Figure 3A greenhouse control device for regulating the temperature and humidity inside the fermentation box 1 is installed on the inner wall of the top of the fermentation box 1. Support rods 2 are installed on the inner sides of opposite sides of the fermentation box 1, parallel to the adjacent side walls of the fermentation box 1. The output shafts of two synchronous motors 13 pass through one side wall of the fermentation box 1 and are fixedly connected to the two support rods 2 respectively. A sliding groove 21 is opened along the length of the support rod 2 on the side away from the synchronous motor 13, passing through one end of the support rod 2. A sliding rod 22 is slidably connected to the support rod 2 within the sliding groove 21. The box 1 is equipped with a frame 4, which is parallel to the support rod 2. Two sliding rods 22 are fixedly connected to the opposite side walls of the frame 4 on the side facing the outside of the slide groove 21. A support plate 41 is connected inside the frame 4, which is parallel to the support rod 2. A cover plate 42 is provided above the support plate 41. One end of the cover plate 42 is hinged to one end of the frame 4. Both the cover plate 42 and the support plate 41 are provided with multiple ventilation holes 43, which are arranged in an array. A snap-fit ​​component 5 is provided at the end of the cover plate 42 away from the hinge, which can be snapped and fixed to the frame 4.

[0037] A connecting block 7 is fixedly provided at the end of the frame 4 away from the hinged end of the cover plate 42. A slot 71 is provided on one side of the connecting block 7. A fixing block 6 is fixedly provided on the side wall of the end of the cover plate 42 away from the hinge. A moving slot 61 is provided through the fixing block 6. The snap-fit ​​assembly 5 includes a snap-fit ​​rod 51 and a pull plate 52. One end of the snap-fit ​​rod 51 extends into the moving slot 61. The snap-fit ​​rod 51 and the fixing block 6 are slidably connected. The snap-fit ​​rod 51 and the slot 71 are snap-fitted and adapted. One end of the snap-fit ​​rod 51 is fixedly connected to the pull plate 52. The pull plate 52 and the snap-fit ​​rod 51 are perpendicular. The side wall of the snap-fit ​​rod 51 away from the pull plate 52 is set as an inclined surface. A second spring 44 is fixedly provided between the pull plate 52 and the fixing block 6. The second spring 44 is sleeved on the outside of the snap-fit ​​rod 51.

[0038] Open the closed door 12 and move the frame 4 outwards from the fermentation chamber 1. The frame 4 moves the tray 41 and the cover 42, while the slide rod 22 moves within the slide groove 21. After the frame 4 moves outside the fermentation chamber 1, open the cover 42 and evenly spread the mixture of soybean protein raw material and inoculum on the tray 41. Then close the cover 42. During the closing process, the cover 42 moves the fixing block 6, which in turn moves the locking rod 51. The locking rod 51 then moves the pull plate 52. During the movement of the locking rod 51, the inclined surface of the locking rod 51 first contacts the inclined surface of the connecting block 7. Guided by the connecting block 7, the locking rod 51 moves away from the connecting block 7. The locking rod 51 moves the pull plate 52, and the second spring 44 enters... After the cover plate 42 and the support plate 41 are parallel, the locking rod 51 and the locking groove 71 are aligned. The second spring 44 retracts, driving the pull plate 52 to move towards the fixing block 6. The pull plate 52 drives the locking rod 51 to move, and the end of the locking rod 51 is locked into the locking groove 71, realizing the locking and fixing of the locking rod 51 and the connecting block 7, thereby realizing the connection between the cover plate 42 and the frame 4. Then, the frame 4 moves towards the fermentation tank 1. The frame 4 drives the slide rod 22 to move in the slide groove 21. When the frame 4 moves to the set position, it is necessary to release the fixing of the cover plate 42 and the frame 4. Pull the pull plate 52 away from the fixing block 6. The pull plate 52 drives the locking rod 51 to move, and the locking rod 51 and the locking groove 71 are disengaged, releasing the fixing of the cover plate 42 and the frame 4.

[0039] refer to Figure 1 , Figure 2 and Figure 4 A blocking component 3 for sealing the opening of the slide groove 21 is provided at one end of the support rod 2. The blocking component 3 includes a baffle 31 and an auxiliary plate 32. The baffle 31 is perpendicular to the support rod 2. The end of the baffle 31 near the support rod 2 extends through one side wall of the slide groove 21 and into the slide groove 21. The auxiliary plate 32 and the end of the baffle 31 outside the slide groove 21 are fixedly connected. The auxiliary plate 32 and the baffle 31 are perpendicular. A first spring 23 is fixed between the auxiliary plate 32 and the support rod 2. The side of the baffle 31 away from the auxiliary plate 32 is set as an inclined surface.

[0040] During the movement of the frame 4 towards the fermentation tank 1, the frame 4 drives the slide rod 22 to move. The end of the slide rod 22 first contacts the inclined surface of the baffle 31 and pushes the baffle 31 outward from the chute 21. The baffle 31 drives the auxiliary plate 32 to move, and the first spring 23 is stretched. When the slide rod 22 moves into the chute 21 and the slide rod 22 disengages from the inclined surface of the baffle 31, the first spring 23 contracts. The first spring 23 drives the auxiliary plate 32 to move towards the support rod 2. The auxiliary plate 32 drives the baffle 31 to move, and one end of the baffle 31 and the side of the chute 21 away from the auxiliary plate 32... The side wall abuts against the baffle 31, which blocks the slide rod 22, making it difficult for the slide rod 22 to slide out from the opening end of the chute 21. The sealing door 12 is closed, the greenhouse control device is started, and the mixture ferments. After one fermentation cycle, the two synchronous motors 13 are started. The synchronous motors 13 drive the support rod 2 to rotate, the support rod 2 drives the slide rod 22 to rotate, the slide rod 22 drives the frame 4 to rotate, and the frame 4 drives the tray 41 and the cover plate 42 to flip. After the frame 4 flips 180 degrees, the synchronous motors 13 are stopped, and the mixture on the tray 41 falls onto the cover plate 42 under the influence of gravity, completing the flipping of the mixture.

[0041] refer to Figure 1 , Figure 2 and Figure 3 An auxiliary rod 15 is fixed on the side of the closed door 12 facing the inside of the fermentation box 1. The upper surface of the auxiliary rod 15 and the lower side wall of the slide 21 are in the same horizontal plane. The fermentation box 1 is provided with a support component 8 for supporting the slide 22 at the end away from the closed door 12.

[0042] The supporting component 8 includes a first supporting rod 81 and a second supporting rod 82. One end of the first supporting rod 81 is hinged to the inner wall of one side of the fermentation tank 1. A displacement groove 811 is formed on one side of the first supporting rod 81 along its own length direction. A displacement block 812 is slidably connected to the first supporting rod 81 in the displacement groove 811. One end of the second supporting rod 82 is hinged to the side of the displacement block 812 facing out of the displacement groove 811. The end of the second supporting rod 82 away from the displacement block 812 is hinged to the bottom side wall of the fermentation tank 1. The length of the second supporting rod 82 is greater than the length of the first supporting rod 81.

[0043] When the frame 4 needs to be removed from the fermentation box 1, the sealing door 12 is opened. After the sealing door 12 and the limiting plate 14 abut, the length direction of the auxiliary rod 15 is parallel to the length direction of the support rod 2. Then, the second bearing rod 82 is rotated outward from the fermentation box 1. The second bearing rod 82 drives the displacement block 812 to move. The displacement block 812 drives the second bearing rod 82 to move. At the same time, the displacement block 812 moves in the displacement groove 811. When the first bearing rod 81 is in a horizontal state, the displacement block 812 and the displacement groove 811 abut against the side wall away from the fermentation box 1. The upper surface of the first bearing rod 81 and the lower side wall of the slide groove 21 are in the same horizontal plane. The length direction of the first bearing rod 81 is parallel to the length direction of the support rod 2. During the process of the frame 4 moving outward from the fermentation box 1, the two slide rods 22 slide onto the auxiliary rod 15 and the first bearing rod 81 respectively. The auxiliary rod 15 and the first bearing rod 81 support the slide rods 22, so that the staff does not need to manually lift the frame 4.

[0044] The implementation principle of the breathable flap device for a soybean protein solid fermentation bed in this application embodiment is as follows: A mixture of soybean protein raw material and inoculum is evenly spread on a tray 41. The cover 42 is closed, and the locking assembly 5 secures the cover 42 and the frame 4. Simultaneously, the cover 42, tray 41, and frame 4 form a chamber for storing the mixture. Next, the frame 4 is moved towards the fermentation chamber 1, causing the frame 4 to move the sliding rod 22. The sliding rod 22 enters the trough 21 from one end opening. Once the sliding rod 22 is fully inside the trough 21, the blocking assembly 3 blocks the opening end of the trough 21. The mixture is sealed to prevent the slide bar 22 from detaching from the chute 21. The sealing door 12 is closed, and the greenhouse control device is activated. The mixture ferments, and after one fermentation cycle, two synchronous motors 13 are activated simultaneously. The synchronous motors 13 drive the support rod 2 to rotate, the support rod 2 drives the slide bar 22 to rotate, and the slide bar 22 drives the frame 4 to rotate. After the frame 4 rotates 180 degrees, the synchronous motors 13 are stopped. The mixture on the tray 41 falls onto the cover plate 42 due to gravity, completing the flipping of the mixture. This eliminates the need for manual flipping by staff, thereby improving the efficiency of soybean protein fermentation.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ventilated turning plate device for a solid state fermentation bed of soybean protein, characterized in that: The fermentation box (1) includes a fermentation chamber (1) and a temperature and humidity control device (11) is installed inside the fermentation chamber (1). One end of the fermentation chamber (1) is set as an opening, and a closed door (12) is hinged to the opening end of the fermentation chamber (1). Synchronous motors (13) are fixed on the outer walls of opposite sides of the fermentation chamber (1). Support rods (2) are provided on the inner walls of opposite sides of the fermentation chamber (1). The output shaft of the synchronous motor (13) passes through one side wall of the fermentation chamber (1) and is fixedly connected to the adjacent support rod (2). A groove (21) is opened along its own length on the side of the support rod (2) facing the inside of the fermentation chamber (1). The groove (21) passes through one side wall of the support rod (2). A sliding rod (22) is slidably connected inside the chute (21). A blocking component (3) for blocking the sliding rod (22) is provided at the open end of the chute (21) of the support rod (2). A frame (4) is provided between the two support rods (2). The side of the sliding rod (22) facing the outside of the chute (21) is fixedly connected to the frame (4). A tray (41) is connected inside the frame (4). A cover plate (42) is provided on the frame (4). One end of the cover plate (42) is hinged to one side wall of the frame (4). A snap-fit ​​component (5) that can snap-fit ​​and fix the cover plate (4) is provided at the end away from the hinge. Ventilation holes (43) are provided on both the cover plate (42) and the tray (41).

2. The breathable turning plate device for solid state fermentation bed of soybean protein according to claim 1, characterized in that: The blocking assembly (3) includes a baffle (31) and an auxiliary plate (32). The length direction of the baffle (31) and the support rod (2) are perpendicular. The baffle (31) is located at one end of the support rod (2) and at the opening end of the slide groove (21). The end of the baffle (31) near the support rod (2) passes through one side wall of the slide groove (21). The baffle (31) and the support rod (2) are slidably connected. The auxiliary plate (32) and the end of the baffle (31) outside the slide groove (21) are fixedly connected. A first spring (23) is fixed between the auxiliary plate (32) and the support rod (2).

3. The breathable turning plate device for solid state fermentation bed of soybean protein according to claim 2, characterized in that: The side wall of the baffle (31) away from the auxiliary plate (32) is set as an inclined surface.

4. The air-permeable flap device for a soybean protein solid-state fermentation bed according to claim 1, characterized in that: The cover plate (42) is fixedly provided with a fixing block (6) at the end away from the hinge. The fixing block (6) has a through-hole (61). The snap-fit ​​assembly (5) includes a snap rod (51) and a pull plate (52). One end of the snap rod (51) extends into the through-hole (61). The snap rod (51) and the fixing block (6) are slidably connected. The end of the snap rod (51) outside the through-hole (61) is fixedly connected to the pull plate (52). The frame (4) is fixedly provided with a connecting block (7) at the end away from the hinge with the cover plate (42). A slot (71) is provided on one side of the connecting block (7). The snap rod (51) and the slot (71) are snap-fitted together.

5. The air-permeable flap device for a soybean protein solid-state fermentation bed according to claim 4, characterized in that: A second spring (44) is fixed between the pull plate (52) and the fixing block (6), and the second spring (44) is sleeved on the outside of the clamping rod (51).

6. The air-permeable flap device for a soybean protein solid-state fermentation bed according to claim 4, characterized in that: The end of the lever (51) away from the pull plate (52) is set as an inclined surface.

7. The air-permeable flap device for a soybean protein solid-state fermentation bed according to claim 1, characterized in that: A limiting plate (14) is fixed at one end of the fermentation box (1) and the closed door (12) that are hinged together. An auxiliary rod (15) is fixed on the side of the closed door (12) facing the inside of the fermentation box (1). The auxiliary rod (15) is set horizontally. A supporting component (8) of the supporting frame (4) is provided at one end of the fermentation box (1) away from the limiting plate (14).

8. The air-permeable flap device for a soybean protein solid-state fermentation bed according to claim 7, characterized in that: The supporting component (8) includes a first supporting rod (81) and a second supporting rod (82). One end of the first supporting rod (81) is hinged to the inner wall of one side of the fermentation box (1). A displacement groove (811) is provided on one side of the first supporting rod (81) along its own length direction. A displacement block (812) is slidably connected to the first supporting rod (81) in the displacement groove (811). One end of the second supporting rod (82) is hinged to the side of the displacement block (812) facing the outside of the displacement groove (811). The end of the second supporting rod (82) away from the displacement block (812) is hinged to the bottom end of the fermentation box (1).

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