Anaerobic fermentation incubation tank for food production

Abstract

The application discloses an anaerobic fermentation cultivation tank for food production and relates to the field of food production, which comprises a fermentation tank, a feeding mechanism is installed on the top of the fermentation tank, a driving mechanism is installed on one side of the top of the fermentation tank, the driving mechanism is in transmission connection with the feeding mechanism, a first stirring assembly is installed in the inner cavity of the fermentation tank, and the first stirring assembly is used for assisting food fermentation. The application can precisely adjust the height of the feeding opening by controlling the lifting of the first rotating rod, can realize accurate control of the automatic feeding position, can continuously provide balanced carbon source, nitrogen source, vitamins and mineral nutrients and other nutrient components for microorganisms in different fermentation stages, and can make the newly added materials rapidly and fully mixed with the fermentation liquid by the feeding opening at a proper height, so that the local nutrient concentration imbalance is avoided, the microorganisms can uniformly obtain nutrients, the vigorous growth and metabolism state is maintained, and the fermentation efficiency and product yield are improved.

Description

Technical Field

[0001] This invention relates to the field of food production technology, specifically to an anaerobic fermentation incubator for food production. Background Technology

[0002] In an anaerobic environment, microorganisms (such as lactic acid bacteria and yeast) transform nutrients in food, such as carbohydrates and proteins, into metabolic products like organic acids, alcohols, and gases (such as carbon dioxide and hydrogen) through fermentation. These products not only give food its unique flavor, texture, and mouthfeel, but also inhibit the growth of harmful microorganisms and extend its shelf life.

[0003] For example, CN117751978B discloses a food fermentation tank, including: a rotating frame rotatably connected inside the tank shell, multiple stirring blades rotatably connected to the rotating frame, a linkage shaft sleeved inside the rotating frame, a feed pipe fixedly connected to the top of the tank shell, and a discharge valve provided at the discharge port at the bottom of the tank shell; multiple pusher plates, each of which is radially slidably connected to the rotating frame with the central axis of the tank shell as a reference; a drive assembly disposed on the tank shell; and a transmission assembly disposed inside the tank shell.

[0004] However, in existing technologies, when raw materials are first added during food fermentation, there are often problems such as particle clumping and solid-liquid separation. This requires rapid breaking up of clumps to promote nutrient dissolution. During the growth, reproduction, and product synthesis stages, microorganisms continuously consume nutrients such as carbon sources, nitrogen sources, and trace elements. During fermentation, microorganisms cannot maintain growth and metabolism without nutrients such as carbon sources, nitrogen sources, vitamins, and minerals. If automatic feeding is not carried out, these nutrients will be gradually depleted as fermentation progresses, causing the growth rate of microorganisms to slow down and the accumulation of biomass to be insufficient, ultimately affecting the yield of fermentation products. In addition, conventional feeding methods cause raw materials to accumulate on the surface of the liquid, making it difficult to quickly and fully mix with the fermentation liquid. This will disrupt the uniformity of the fermentation liquid and cause uneven distribution of nutrients. Some areas may have excess nutrients, while some areas may be in a state of nutrient deficiency, leading to unbalanced microbial growth and metabolism, thereby reducing fermentation efficiency and product yield. Summary of the Invention

[0005] The purpose of this invention is to provide an anaerobic fermentation incubator for food production, in order to solve the problems mentioned in the background art, such as the lack of automatic feeding, the gradual depletion of nutrients as fermentation progresses, the slowdown of microbial growth, and the fact that conventional feeding methods cause raw materials to accumulate on the surface of the liquid, making it difficult to quickly and fully mix with the fermentation liquid, which will destroy the uniformity of the fermentation liquid and cause uneven distribution of nutrients.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an anaerobic fermentation incubator for food production, comprising a fermentation tank, a feeding mechanism installed on the top of the fermentation tank, and a drive mechanism installed on one side of the top of the fermentation tank, the drive mechanism being connected to the feeding mechanism in a transmission manner; a first stirring assembly installed in the inner cavity of the fermentation tank, the first stirring assembly being used to assist food fermentation; and a second stirring assembly installed on one side of the top of the fermentation tank, the second stirring assembly being used to control the feeding mechanism to lift and lower, and adjust the height of automatic feeding.

[0007] The first stirring assembly includes a rotating sleeve and a fixed rod. A support rod is fixedly connected to the outer surface of the bottom end of the rotating sleeve. A rotating block is rotatably connected to one end of the support rod. A stirring plate is fixedly connected to the side wall of the rotating block. A transmission block is fixedly connected to both the top and bottom ends of the fixed rod.

[0008] The feeding mechanism includes a first rotating rod, a feed pipe is rotatably connected to the top of the first rotating rod, and multiple limiting strips are fixedly connected to the outer surface of the first rotating rod. A limiting block is fixedly connected to the top of the first rotating rod, and a feeding port is fixedly connected to the bottom of the first rotating rod.

[0009] Preferably, a limiting groove is provided on the inner wall of the rotating sleeve, the top of the rotating sleeve is rotatably connected to the center of the top of the fermentation tank, and the limiting groove is slidably connected to the limiting strip.

[0010] Preferably, both transmission blocks have movable frames slidably connected to their outer surfaces, with the top of one movable frame rotatably connected to the rotating block and the bottom of the other rotating block rotatably connected to one end of the drive rod.

[0011] Preferably, the driving mechanism includes a fixed gear, the top of which is fixedly connected to the top of the inner cavity of the fermenter, and transmission gears are meshed on both sides of the fixed gear. A second rotating rod is rotatably connected to the outer surface of the transmission gear, the middle of the second rotating rod is fixedly connected to the outer surface of the rotating sleeve, and a stirring blade is fixedly connected to the bottom of the transmission gear.

[0012] Preferably, a first drive motor is installed on the top of the fermenter, and a drive bevel gear is fixedly connected to the output end of the first drive motor. A driven bevel gear is meshed with one side of the drive bevel gear, and the driven bevel gear is fixedly connected to the outer surface of the rotating sleeve.

[0013] Preferably, a fixed sleeve is fixedly connected to the outer surface of one end of the feed pipe, a lifting rod is fixedly connected to the bottom of the fixed sleeve, a sleeve is sleeved on the outer surface of the bottom end of the lifting rod, and the bottom of the sleeve is fixedly connected to the top of the fermentation tank.

[0014] Preferably, a feed inlet is fixedly connected to one side of the top of the fermentation tank, and a discharge valve is installed at the bottom of the fermentation tank.

[0015] Preferably, the second stirring assembly includes a support plate, a crank rotatably connected to the side wall of the support plate, a limit sleeve fixedly connected to the top of the side wall of the support plate, a limit rod slidably connected to the inner side of the limit sleeve, and a lifting plate fixedly connected to the top of the limit rod.

[0016] Preferably, the bottom of the support plate is fixedly connected to the top of the fermentation tank, and a second drive motor is installed at the top of the side wall of the support plate, with the output end of the second drive motor fixedly connected to the crank.

[0017] Preferably, a drive block is rotatably connected to the inner side of the lifting plate, the drive block is fixedly connected to one end of the crank, a drive frame is fixedly connected to one end of the lifting plate, a push block is fixedly connected to the inner side of the drive frame, and the push block is slidably connected to the limit block.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In this invention, the height of the feeding port is precisely adjusted by controlling the lifting and lowering of the first rotating rod, which enables precise control of the automatic feeding position. At different fermentation stages, it can continuously provide microorganisms with a balanced supply of carbon, nitrogen, vitamins, and minerals. With the feeding port at a suitable height, the newly added material is quickly and fully mixed with the fermentation liquid, avoiding local imbalances in nutrient concentration, ensuring that microorganisms obtain nutrients evenly, maintain vigorous growth and metabolism, and thus improve fermentation efficiency and product yield.

[0020] 2. In this invention, the change in the height of the bottom end of the first rotating rod will drive the drive rod to rise and fall. The angle of the stirring plate can be flexibly adjusted through the linkage mechanism. In the early stage of fermentation, the raw materials may clump or stick together. Increasing the stirring angle can quickly break up the materials and accelerate the mixing process. After the microorganisms enter the logarithmic growth phase, the stirring angle can be appropriately reduced to reduce the direct impact force on the liquid, form a gentler vortex environment, reduce the risk of damage to the microorganisms, promote their healthy growth, and improve the adaptability of the stirring system to different fermentation stages.

[0021] 3. In this invention, the first drive motor drives the active bevel gear to rotate, which in turn drives the rotating sleeve to rotate via the driven bevel gear, so that the two stirring components and some components of the feeding mechanism operate synchronously, ensuring the spatial coordination and angular synchronization of the stirring device. The second drive motor drives the crank to rotate, which in turn drives the first rotating rod to rise and fall linearly via the drive block, lifting plate and other components, thereby realizing the automatic adjustment of the feeding function. All components work closely together to ensure the stability and efficiency of the equipment operation and improve the overall fermentation effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an anaerobic fermentation incubator for food production according to the present invention;

[0023] Figure 2This is a partial structural schematic diagram of an anaerobic fermentation incubator for food production according to the present invention;

[0024] Figure 3 This is a schematic diagram of the feeding mechanism and driving mechanism in an anaerobic fermentation incubator for food production according to the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the first stirring component and the feeding mechanism in an anaerobic fermentation incubator for food production according to the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the first stirring component in an anaerobic fermentation incubator for food production according to the present invention;

[0027] Figure 6 This is a schematic diagram of the drive mechanism for an anaerobic fermentation incubator used in food production according to the present invention.

[0028] Figure 7 This is a schematic diagram of the feeding mechanism and the second stirring component of an anaerobic fermentation incubator for food production according to the present invention.

[0029] Figure 8 This is a schematic diagram of the internal structure of the second stirring component in an anaerobic fermentation incubator for food production according to the present invention;

[0030] Figure 9 This is an overall flow chart of an anaerobic fermentation incubator for food production according to the present invention.

[0031] In the diagram: 1. Fermentation tank; 2. Feeding mechanism; 21. Feed pipe; 22. First rotating rod; 23. Limiting block; 24. Limiting strip; 25. Feeding port; 26. Lifting rod; 27. Sleeve; 28. Fixed sleeve; 3. Drive mechanism; 31. First drive motor; 32. Driving bevel gear; 33. Driven bevel gear; 34. Fixed gear; 35. Second rotating rod; 36. Transmission gear; 37. Stirring blade; 4. First stirring group Components; 41. Rotating sleeve; 411. Limiting groove; 42. Stirring plate; 43. Rotating block; 44. Movable frame; 45. Fixed rod; 451. Transmission block; 46. Drive rod; 47. Support rod; 5. Second stirring assembly; 51. Second drive motor; 52. Support plate; 53. Lifting plate; 54. Drive block; 55. Crank; 56. Limiting sleeve; 57. Limiting rod; 58. Drive frame; 59. Pushing block; 6. Feed inlet. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1: Refer to Figures 1-9 As shown: An anaerobic fermentation incubator for food production includes a fermentation tank 1, a feeding mechanism 2 installed on the top of the fermentation tank 1, and a drive mechanism 3 installed on one side of the top of the fermentation tank 1. The drive mechanism 3 is connected to the feeding mechanism 2 in a transmission manner. A first stirring component 4 is installed in the inner cavity of the fermentation tank 1. The first stirring component 4 is used to assist food fermentation. A second stirring component 5 is installed on one side of the top of the fermentation tank 1. The second stirring component 5 is used to control the feeding mechanism 2 to lift and adjust the height of automatic feeding.

[0034] The first stirring assembly 4 includes a rotating sleeve 41 and a fixed rod 45. A support rod 47 is fixedly connected to the outer surface of the bottom end of the rotating sleeve 41. A rotating block 43 is rotatably connected to one end of the support rod 47. A stirring plate 42 is fixedly connected to the side wall of the rotating block 43. A transmission block 451 is fixedly connected to both the top and bottom ends of the fixed rod 45.

[0035] The feeding mechanism 2 includes a first rotating rod 22, a feed pipe 21 is rotatably connected to the top end of the first rotating rod 22, and multiple limiting strips 24 are fixedly connected to the outer surface of the first rotating rod 22. A limiting block 23 is fixedly connected to the top end of the first rotating rod 22, and a fixed sleeve 28 is fixedly connected to the bottom end of the feed pipe 21.

[0036] A fixed sleeve 28 is fixedly connected to the outer surface of one end of the feed pipe 21. A lifting rod 26 is fixedly connected to the bottom of the fixed sleeve 28. A sleeve 27 is sleeved on the outer surface of the bottom end of the lifting rod 26. The bottom of the sleeve 27 is fixedly connected to the top of the fermentation tank 1. A feed inlet 6 is fixedly connected to one side of the top of the fermentation tank 1. A discharge valve is installed at the bottom of the fermentation tank 1.

[0037] In this embodiment, during the food production process, raw materials are poured into the fermentation tank 1 through the feed inlet 6, and then enter the mixing and fermentation stage. During this process, the lifting and lowering movement of the first rotating rod 22 plays a crucial role. By controlling the lifting and lowering of the first rotating rod 22, the vertical height of the fixing sleeve 28 can be precisely adjusted, thereby achieving position control of the feed inlet 25 in the automatic feeding process. This ensures that the feed inlet is always in the position most conducive to material diffusion and mixing during different fermentation stages, thus continuously providing a balanced source of carbon, nitrogen, vitamins, and minerals for the microorganisms inside the tank. Moreover, when feeding stops, the entire feed pipe 21 is closed, ensuring an anaerobic environment inside the fermentation tank 1.

[0038] This dynamic adjustment of the feeding location not only effectively improves the growth rate and metabolic activity of microorganisms, thereby increasing fermentation efficiency and product yield, but also prevents microecological imbalance caused by abnormal nutrient concentrations in local areas. Setting the feeding port at an appropriate height allows newly added materials to quickly diffuse throughout the fermentation broth, fully mixing with the existing bacterial solution, enhancing the homogeneity of the system, making the nutrient distribution more uniform, and ensuring the stability and continuity of the fermentation process.

[0039] Furthermore, the height of the bottom end of the first rotating rod 22 also affects the lifting and lowering of the drive rod 46 through a linkage mechanism. When the drive rod 46 moves up and down, it drives the connected movable frame 44 to move synchronously. Since the support rod 47 is installed in a fixed position and does not move, when the drive rod 46 drives the movable frame 44 to move, the fixed rod 45 connected to it and the two movable frames 44 form a structure similar to a universal joint, thereby causing the rotating block 43 to change angle and begin to rotate with one end of the support rod 47 as the rotation center. This linkage mechanism ultimately acts on the stirring plate 42, allowing its angle to be freely adjusted, thus improving the flexibility and adaptability of the stirring system.

[0040] The flexible adjustment of the stirring angle is particularly important for different fermentation stages. During fermentation, the characteristics of the raw materials and the state of the microorganisms are constantly changing, and adjusting the stirring angle can alter the radial shear force generated by stirring. For example, in the early stages of fermentation, the raw materials may clump or stick together. At this time, the stirring angle can be increased to enhance the stirring intensity, thereby quickly breaking up the materials and accelerating the mixing process. However, after the microorganisms enter the logarithmic growth phase, their cell wall structure becomes more fragile, and excessive stirring intensity can easily cause mechanical damage. Therefore, appropriately reducing the stirring angle at this stage reduces the direct impact force of the impeller on the liquid, creating a gentler vortex environment, thereby effectively reducing the risk of microbial damage and promoting their healthy growth.

[0041] In addition, sensors are installed inside fermenter 1 to monitor the concentration of nutrients, pH, and the number and activity of microorganisms in the fermentation broth. Based on the monitoring data, the feeding rate, stirring frequency, and time are automatically adjusted to achieve more precise automated control, further optimizing the fermentation process and improving fermentation efficiency and product quality stability.

[0042] Example 2: Figures 3-6As shown, a limiting groove 411 is formed on the inner wall of the rotating sleeve 41. The top of the rotating sleeve 41 is rotatably connected to the center of the top of the fermentation tank 1, and the limiting groove 411 is slidably connected to the limiting strip 24. Movable frames 44 are slidably connected to the outer surfaces of the two transmission blocks 451. The top of one movable frame 44 is rotatably connected to the rotating block 43, and the bottom of the other rotating block 43 is rotatably connected to one end of the drive rod 46. The drive mechanism 3 includes a fixed gear 34. The top of the fixed gear 34 is fixedly connected to the top of the inner cavity of the fermentation tank 1, and transmission gears 36 are meshed on both sides of the fixed gear 34. A second rotating rod 35 is rotatably connected to the outer surface of the transmission gear 36. The middle part of the second rotating rod 35 is fixedly connected to the outer surface of the rotating sleeve 41, and a stirring blade 37 is fixedly connected to the bottom of the transmission gear 36. A first drive motor 31 is installed on the top of the fermentation tank 1. A driving bevel gear 32 is fixedly connected to the output end of the first drive motor 31. A driven bevel gear 33 is meshed on one side of the driving bevel gear 32 and is fixedly connected to the outer surface of the rotating sleeve 41.

[0043] In this embodiment, the first drive motor 31 serves as the core drive source of the entire power system, driving the active bevel gear 32 connected to it to rotate at high speed during operation. Due to the excellent spatial steering transmission characteristics of the bevel gear structure, the rotation of the active bevel gear 32 can stably and efficiently transmit power to the driven bevel gear 33 meshing with it, realizing axial power conversion.

[0044] The rotation of the driven bevel gear 33 further drives the rotating sleeve 41 connected to it to rotate. The rotating sleeve 41 is not only a key intermediate structure for rotary transmission, but also, during its rotation, it can synchronously drive the support rod 47 to rotate, realizing the overall drive of the stirring structure; on the other hand, it has a limiting groove 411 inside, which generates a precise thrust on the limiting strip 24 during rotation, thereby controlling the linkage rotation of the first rotating rod 22. This ensures the synchronous rotation of multiple components, effectively guaranteeing the spatial coordination and angular synchronization of the stirring device, and avoiding problems such as uneven stirring caused by angular misalignment or asynchrony.

[0045] At the same time, the rotation of the rotating sleeve 41 also drives the second rotating rod 35 to rotate synchronously. One end of the second rotating rod 35 is connected to two symmetrically arranged transmission gears 36. When these transmission gears 36 rotate, they can not only drive the stirring blade 37 to perform conventional stirring tasks, but also form a compound motion mechanism with the help of the fixed gears 34 arranged outside them.

[0046] Specifically, the stationary gear 34 is designed to remain stationary. When the transmission gear 36 rotates around it, it creates a complex motion forced by the gear meshing principle. Driven by the transmission gear 36, the stirring blade 37 rotates not only around its own axis but also around the system's central axis. This superimposed rotational and revolving motion significantly improves the shear efficiency and turbulence intensity of the stirred liquid, facilitating efficient mixing of raw materials and microorganisms, increasing mass transfer rates, accelerating substrate degradation and product accumulation, thereby significantly optimizing the entire fermentation process.

[0047] Example 3: According to Figure 7 and Figure 8 As shown, the second stirring assembly 5 includes a support plate 52, a crank 55 rotatably connected to the side wall of the support plate 52, a limiting sleeve 56 fixedly connected to the top of the side wall of the support plate 52, a limiting rod 57 slidably connected to the inner side of the limiting sleeve 56, and a lifting plate 53 fixedly connected to the top of the limiting rod 57. The bottom of the support plate 52 is fixedly connected to the top of the fermentation tank 1, and a second drive motor 51 is installed at the top of the side wall of the support plate 52. The output end of the second drive motor 51 is fixedly connected to the crank 55. A drive block 54 rotatably connected to the inner side of the lifting plate 53 is fixedly connected to one end of the crank 55, and a drive frame 58 is fixedly connected to one end of the lifting plate 53. A push block 59 is fixedly connected to the inner side of the drive frame 58 and slidably connected to the limiting block 23.

[0048] In this embodiment, when the second drive motor 51 is running, it drives the connected crank 55 to rotate continuously. Since one end of the crank 55 is connected to the drive block 54, during rotation, the crank 55 not only performs circular motion, but also drives the drive block 54 to perform circular motion along a specific trajectory through its eccentric structure. The drive block 54 is embedded in the internal guide groove of the lifting plate 53. While being driven to perform circular motion, it slides in the guide groove and applies a periodic force to the lifting plate 53, thereby driving the lifting plate 53 to move up and down reciprocally.

[0049] During the vertical movement of the lifting plate 53, the limiting rod 57 connected to its bottom also moves up and down. Since the limiting rod 57 passes through the limiting sleeve 56 and is precisely guided and restricted by its internal structure, the movement of the limiting rod 57 always remains in a vertical straight line, avoiding skew or swaying, thereby ensuring the stability and accuracy of the overall lifting process.

[0050] As the limit rod 57 moves linearly, the drive frame 58 connected to it is also driven to achieve synchronous up-and-down linear reciprocating motion. The drive frame 58, through its push block 59, works in coordination with the limit block 23 to periodically apply an upward or downward driving force to the first rotating rod 22 during the reciprocating motion, so that the first rotating rod 22 can achieve linear lifting and lowering.

[0051] The up-and-down movement of the first rotating rod 22 directly drives the feed pipe 21 mounted on it to rise and fall synchronously, thereby completing the automatic adjustment of the feeding function. Simultaneously, a lifting rod 26 is provided at the bottom of the feed pipe 21. During its movement, the lifting rod 26 is limited and guided by the external sleeve 27. The sleeve 27 effectively suppresses lateral displacement or vibration of the lifting rod 26 and the feed pipe 21 during the lifting process, thereby enhancing lifting stability and improving feeding accuracy and reliability.

[0052] The device's operation and working principle are as follows: During food production, raw materials are poured into fermentation tank 1 through inlet 6. During the mixing process, the height of the feeding inlet 25 can be adjusted by controlling the raising and lowering of the first rotating rod 22, thus precisely controlling the automatic feeding position. This design not only continuously provides microorganisms with sufficient carbon, nitrogen, vitamins, minerals, and other nutrients, maintaining their vigorous growth and metabolism, thereby improving fermentation efficiency and product yield; it also ensures that the feeding inlet 25 is at a suitable height, allowing the newly added material to quickly and thoroughly mix with the fermentation liquid in fermentation tank 1, avoiding local nutrient concentration imbalances, ensuring uniform nutrient acquisition by microorganisms, and maintaining the stability of the fermentation process.

[0053] The change in the height of the bottom end of the first rotating rod 22 will cause the drive rod 46 to rise and fall synchronously. When the drive rod 46 rises and falls, the movable frame 44 connected to it moves accordingly. Since the height of the support rod 47 is fixed, when the drive rod 46 moves, the fixed rod 45 and the two movable frames 44 form a structure similar to a universal joint, causing the rotating block 43 to rotate around one end of the support rod 47 as the center, so as to realize the flexible adjustment of the angle of the stirring plate 42.

[0054] The properties of materials vary significantly at different fermentation stages. Adjusting the stirring angle allows for flexible control of radial shear force, which can quickly break up clumps of material, accelerate mixing, and avoid mechanical damage to delicate microorganisms caused by over-stirring. For example, during the logarithmic growth phase, when microorganisms multiply rapidly, reducing the stirring angle to create a smooth vortex in the impeller can effectively reduce the impact on microorganisms.

[0055] When the first drive motor 31 operates, it drives the active bevel gear 32 to rotate. The active bevel gear 32, through meshing transmission, drives the driven bevel gear 33 to rotate synchronously, thereby transmitting power to the rotating sleeve 41, causing it to start rotating. While the rotating sleeve 41 drives the support rod 47 to rotate, it applies force to the limiting strip 24 through the limiting groove 411, driving the first rotating rod 22 to rotate synchronously, ensuring the consistency of operation of each component.

[0056] During the rotation of the rotating sleeve 41, the second rotating rod 35 is driven to rotate, and the second rotating rod 35 drives the two transmission gears 36 to rotate. The transmission gears 36 not only drive the stirring blades 37 to perform stirring operations, but also interact with the fixed gears 34, so that the stirring blades 37 can simultaneously rotate on their own axis and revolve around the sun, significantly improving the fermentation effect.

[0057] After the second drive motor 51 starts, it drives the crank 55 to perform circular motion, which in turn drives the drive block 54 to perform synchronous circular motion. While the drive block 54 slides within the lifting plate 53, it applies a force to the lifting plate 53. When the lifting plate 53 moves, the bottom-connected limiting rod 57 moves vertically under the constraint of the limiting sleeve 56, thereby driving the drive frame 58 to perform synchronous linear reciprocating motion. During its movement, the drive frame 58, through the coordinated action of the pushing block 59 and the limiting block 23, drives the first rotating rod 22 to perform vertical linear motion. When the feed pipe 21 moves with the first rotating rod 22, it drives the lifting rod 26 to rise and fall. The sleeve 27 limits the movement of the lifting rod 26, ensuring the stable and reliable lifting process of the feed pipe 21.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An anaerobic fermentation culture tank for food production, comprising a fermentation tank (1), characterized in that: A feeding mechanism (2) is installed on the top of the fermentation tank (1), and a drive mechanism (3) is installed on one side of the top of the fermentation tank (1). The drive mechanism (3) is connected to the feeding mechanism (2) in a transmission manner. A first stirring component (4) is installed in the inner cavity of the fermentation tank (1). The first stirring component (4) is used to assist food fermentation. A second stirring component (5) is installed on one side of the top of the fermentation tank (1). The second stirring component (5) is used to control the feeding mechanism (2) to lift and adjust the height of automatic feeding. The first stirring assembly (4) includes a rotating sleeve (41) and a fixed rod (45). A support rod (47) is fixedly connected to the outer surface of the bottom end of the rotating sleeve (41). A rotating block (43) is rotatably connected to one end of the support rod (47). A stirring plate (42) is fixedly connected to the side wall of the rotating block (43). A transmission block (451) is fixedly connected to both the top and bottom ends of the fixed rod (45). Movable frames (44) are slidably connected to the outer surfaces of the two transmission blocks (451). The top end of one movable frame (44) is rotatably connected to the rotating block (43), and the bottom end of the other rotating block (43) is rotatably connected to one end of the drive rod (46). The feeding mechanism (2) includes a first rotating rod (22), a feed pipe (21) is rotatably connected to the top of the first rotating rod (22), and multiple limiting strips (24) are fixedly connected to the outer surface of the first rotating rod (22). A limiting block (23) is fixedly connected to the top of the first rotating rod (22), and a feeding port (25) is fixedly connected to the bottom of the first rotating rod (22). The drive mechanism (3) includes a fixed gear (34), the top of the fixed gear (34) is fixedly connected to the top of the inner cavity of the fermenter (1), and both sides of the fixed gear (34) are meshed with transmission gears (36). The outer surface of the transmission gear (36) is rotatably connected to a second rotating rod (35). The middle part of the second rotating rod (35) is fixedly connected to the outer surface of the rotating sleeve (41). The bottom of the transmission gear (36) is fixedly connected to a stirring blade (37). The top of the fermenter (1) is equipped with a first drive motor (31). The output end of the first drive motor (31) is fixedly connected to an active bevel gear (32). One side of the active bevel gear (32) is meshed with a driven bevel gear (33). The driven bevel gear (33) is fixedly connected to the outer surface of the rotating sleeve (41). The second stirring assembly (5) includes a support plate (52), a crank (55) is rotatably connected to the side wall of the support plate (52), a limit sleeve (56) is fixedly connected to the top of the side wall of the support plate (52), a limit rod (57) is slidably connected to the inner side of the limit sleeve (56), a lifting plate (53) is fixedly connected to the top of the limit rod (57), the bottom of the support plate (52) is fixedly connected to the top of the fermentation tank (1), and a second drive motor (51) is installed at the top of the side wall of the support plate (52). The output end of the second drive motor (51) is fixedly connected to the crank (55), a drive block (54) is rotatably connected to the inner side of the lifting plate (53), the drive block (54) is fixedly connected to one end of the crank (55), a drive frame (58) is fixedly connected to one end of the lifting plate (53), a push block (59) is fixedly connected to the inner side of the drive frame (58), and the push block (59) is slidably connected to the limit block (23).

2. The anaerobic fermentation tank for food production according to claim 1, characterized in that: A limiting groove (411) is provided on the inner wall of the rotating sleeve (41). The top of the rotating sleeve (41) is rotatably connected to the center of the top of the fermentation tank (1). The limiting groove (411) is slidably connected to the limiting strip (24).

3. The anaerobic fermentation tank for food production according to claim 1, characterized in that: A fixed sleeve (28) is fixedly connected to the outer surface of one end of the feed pipe (21). A lifting rod (26) is fixedly connected to the bottom of the fixed sleeve (28). A sleeve (27) is sleeved on the outer surface of the bottom end of the lifting rod (26). The bottom of the sleeve (27) is fixedly connected to the top of the fermentation tank (1).

4. The anaerobic fermentation incubator for food production according to claim 1, characterized in that: The fermentation tank (1) has a feed inlet (6) fixedly connected to one side of the top, and a discharge valve is installed at the bottom of the fermentation tank (1).

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