Brine fermentation device for preparing flavored stinky tofu

Abstract

The invention discloses a brine fermentation device for making flavored stinky tofu, and belongs to the technical field of microbial device.The brine fermentation device comprises a box shell, a vibration mounting plate is mounted in the box shell, a water supply pipe is mounted on the vibration mounting plate, a vertical water pipe and an annular water pipe are mounted on the water supply pipe, and the vertical water pipe is communicated with the annular water pipe; water flows into the vertical water pipe to control the temperature in the box shell, the box shell is filled with water, the annular water pipe controls the temperature of the water, and the fermentation tank body is provided with a packaging cover. According to the technical scheme, hot water or cold water can be introduced into the vertical water pipe for temperature control, the water filling position in the box body shell can be changed according to requirements, the temperature in the fermentation tank body can be more uniformly controlled by heating or cooling water through the annular water pipe, and fermentation is more stable and easier to control.

Description

[0001] The invention relates to the technical field of microbial devices, in particular to a brine fermentation device for making flavored stinky tofu. Background Art

[0002] The unique flavor and texture of stinky tofu are highly dependent on the brine fermentation process, which decomposes organic matter through the synergistic action of specific microbial communities, producing volatile compounds with a signature odor and umami substances. Traditional and existing industrial fermentation equipment, such as ceramic jars, porcelain pots, or simple stainless steel containers, has significant limitations in temperature control. Traditional containers like ceramic jars and porcelain pots are completely dependent on ambient temperature, causing the fermentation system to fluctuate dramatically with the seasons and day and night, making it impossible to maintain the stable thermal environment required for microbial metabolism. Existing stainless steel fermentation tanks, while equipped with basic heating and cooling functions, lack sophisticated temperature control designs, often resulting in uneven temperature distribution within the tank, localized overheating, or areas of low temperature.

[0003] In the utility model patent with publication number CN217499261U, a flavored stinky tofu brine accelerated fermentation device is disclosed, which mainly includes a liquid storage tank, a temperature detector, a drain pipe and a removable cover. The top of the cover is integrated with a drive mechanism: the motor drives the second bevel gear at the end of the rotating rod to rotate through the meshing transmission of the first bevel gear; the rotating rod extends to the inside of the liquid storage tank to connect to the dynamic stirring mechanism, which combines a spring return design with a limit bead friction reduction structure to enable the stirring frame to achieve adaptive swinging under the resistance of the material; the through holes opened on the surface of the stirring frame can enhance the shear force of the fluid and promote the uniform mixing of microorganisms and materials. The device aims to optimize the fermentation efficiency and quality stability of the brine through the synergistic effect of mechanical stirring and temperature control monitoring. This device still cannot better control the fermentation temperature. The out-of-control temperature directly destroys the dynamic balance of key bacterial communities, such as lactic acid bacteria, molds and Bacillus: the overheated area inhibits the activity of bacteria with weak temperature resistance, and the low-temperature area slows down the metabolic rate of thermophilic bacteria, ultimately resulting in an extended fermentation cycle, low efficiency in the synthesis of target flavor substances, and a significantly increased risk of contamination by miscellaneous bacteria, which seriously affects the stability and safety of the brine quality. Summary of the Invention

[0004] In response to the above technical problems, the present invention discloses a brine fermentation device for producing flavored stinky tofu, comprising a housing, a vibration mounting plate installed in the housing, a water supply pipe installed on the vibration mounting plate, a vertical water pipe and an annular water pipe installed on the water supply pipe, the vertical water pipe and the annular water pipe being connected, water flowing through the vertical water pipe controls the temperature inside the housing, the housing is filled with water, the annular water pipe controls the temperature of the water, and a packaging cover is installed on the fermentation tank body. Through the above technical solution, hot water or cold water can be passed through the vertical water pipe for temperature control, the water filling position in the housing can be changed according to demand, and heating or cooling the water through the annular water pipe can more evenly control the temperature inside the fermentation tank body, making the fermentation more stable and easier to control.

[0005] Furthermore, the fermentation tank body is provided with a sealing outer edge, within which a water seal groove is provided. The edge of the sealing cover is inserted into the water seal groove, which is filled with water. The sealing cover is fixed with a plug-in rod, which is fitted with a counterweight. The weight of the sealing cover is controlled by adjusting the number of counterweights. This technical solution ensures a tight seal while allowing gas inside the fermentation tank to be discharged. The pressure inside the fermentation tank can be controlled by increasing the number of counterweights.

[0006] Furthermore, a vibrating electric cylinder and a rotary motor are fixedly mounted under the housing. The output end of the vibrating electric cylinder is connected to a vibrating mounting plate, driving the vibrating mounting plate to move up and down for shaking. The output shaft of the rotary motor is equipped with rotating blades, each equipped with a magnet. A stirring blade is rotatably mounted within the fermenter, and the magnet drives the stirring blade. Through the above technical solution, the vibrating electric cylinder and the rotary motor are used for stirring, and the stirring blade is driven by the magnet to avoid passing the shaft through the bottom of the fermenter, eliminating the need for sealing, significantly reducing costs, and ensuring the internal sealing of the fermenter. Shaking the fermenter also allows for even mixing within the fermenter, and the combination of shaking and stirring improves the efficiency of this step.

[0007] Furthermore, two circular holes are provided on the side of the fermentation tank body, and external short tubes are fixedly installed at the circular holes. A sampling short tube is fixedly installed on the external short tube. An air pipe and a sampling tube are provided on the sampling short tube, and the air pipe draws air from the fermentation tank body to take samples.

[0008] Furthermore, a sampling shaft is inserted into the circular hole of the fermentation tank body. The sampling shaft is a hollow structure with multiple sampling holes. A sealing pad is fixed on the end of the sampling shaft. In the natural state, the sealing pad is tightly attached to the side wall of the fermentation tank body.

[0009] Furthermore, a plug-in shaft is fixedly mounted on the sealing gasket block, a toggle disk is fixedly mounted on the end of the plug-in shaft, a blocking plate is fixedly mounted on the sampling short tube, and the blocking plate is slidably connected to the plug-in shaft.

[0010] Furthermore, a connecting ring is fixedly mounted on the sampling short tube, an elastic sheet is fixedly mounted on the connecting ring, a connecting disc is fixedly mounted on the elastic sheet, and the connecting disc is fixedly connected to the plug-in shaft.

[0011] Furthermore, a sampling spring is fixed between the connecting disc and the baffle. In its natural state, the sampling spring is fully compressed, and the sealing gasket is tightly against the side wall of the fermenter. Through this technical solution, two circular holes are provided in the fermenter, one in the liquid and the other in the gas, allowing for sampling and observation of both areas. Using an air pipe to create negative pressure within the sampling short tube allows for sampling. Furthermore, the elastic sheet can be tightened to mate with the plug-in shaft, ensuring a constant seal and preventing contamination of the fermenter interior during sampling.

[0012] Furthermore, a support frame is fixedly mounted on the follower plate, a prying rod is hinged on the support frame, an extension rod is fixedly mounted on one end of the prying rod, and the distance between the other end of the prying rod and the hinge point is greater than the distance from the extension rod to the hinge of the prying rod.

[0013] Furthermore, the support frame is provided with a threaded hole, into which a threaded rod is fitted, and a prying rod is fixedly mounted at the first end of the threaded rod, which limits the height to which the extension rod can be tilted. With this technical solution, the lever principle of the prying rod can be used to easily lift the dial for sampling, and the lifting height is controlled by the limit plate to prevent the plug-in shaft from being pulled out too much and causing the sampling shaft to detach from the fermentation tank body.

[0014] The beneficial effects of the present invention compared with the prior art are: (1) Through the technical solution of the present invention, hot or cold water can be passed through the vertical water pipe for temperature control. The water filling position in the housing can be changed according to demand. Heating or cooling the water through the annular water pipe can more evenly control the temperature inside the fermentation tank, making fermentation more stable and easier to control, and realizing gradient and precise temperature control in the axial and radial directions of the fermentation tank. This design completely solves the problem of local overheating or low-temperature dead corners caused by uneven heat conduction in traditional devices, ensuring that the mesophilic bacteria (such as Bacillus 35-40℃, Lactobacillus 30-35℃) are always in the optimal active temperature range, significantly improving the synthesis rate of flavor substances and batch stability.

[0015] (2) Through the technical solution of the present invention, the gas in the fermentation tank can be discharged while ensuring sealing, and the pressure in the fermentation tank can be controlled by increasing the number of counterweights.

[0016] (3) Through the technical solution of the present invention, a vibrating electric cylinder and a rotary motor are used for stirring drive, and the stirring blades driven by magnets can avoid passing the shaft through the bottom of the fermentation tank body, eliminating the sealing step, greatly reducing costs, and ensuring the sealing degree of the fermentation tank body. By shaking the fermentation tank body, the fermentation tank body can also be shaken evenly. Shaking and stirring improve the efficiency of this step. The innovative use of magnetic coupling transmission plus mechanical shaking dual-power stirring, a rotary motor is installed on the outside of the tank bottom to drive the permanent magnet rotor to rotate at high speed; the stirring blades in the tank are embedded with driven magnetic rings corresponding to the magnetic poles, and the magnetic field penetrates the tank wall through contactless transmission to drive the blades to rotate and break the material; a vibrating electric cylinder is installed on the side wall to drive the tank body to swing periodically. This design completely eliminates the mechanical shaft seal structure and eliminates the risk of contamination caused by failure of the traditional stirring shaft seal; magnetic transmission does not require dynamic seals, reducing manufacturing costs by more than 60%. At the same time, the synergistic effect of rotary shear and low-frequency shaking fully breaks the fiber residue (such as amaranth stems) in the high-viscosity brine, and the microorganism-material mass transfer efficiency is increased by about 3 times.

[0017] (4) Through the technical solution of the present invention, two circular holes are set on the fermentation tank body, respectively located in the liquid and the gas, so that sampling and observation of the two parts can be carried out. The air pipe is used to create negative pressure in the sampling short tube, so that sampling can be carried out. The elastic sheet can be tightened to cooperate with the plug-in shaft to ensure that it is always in a sealed state, and the interior of the fermentation tank body will not be contaminated when sampling.

[0018] (5) Through the technical solution of the present invention, the lever principle of the prying rod can be used to easily lift the dial plate for sampling, and the lifting height is controlled by the limit plate to prevent the plug-in shaft from being pulled out too much and causing the sampling shaft to be separated from the fermentation tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention.

[0020] Figure 2 for Figure 1 Enlarged view of point B in the middle.

[0021] Figure 3 Schematic diagram of the internal structure of an embodiment of the present invention.

[0022] Figure 4 This is a side view of a fermentation tank according to an embodiment of the present invention.

[0023] Figure 5 for Figure 4 Cross-sectional view at DD in the middle.

[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0025] Figure 7 for Figure 5 Enlarged view of point C in the middle.

[0026] Figure 8 It is a partial structural diagram of an embodiment of the present invention.

[0027] Figure 9 It is a schematic diagram of the local structure of an embodiment of the present invention.

[0028] Reference numerals: 1-box legs; 2-box housing; 3-vibrating electric cylinder; 4-rotating motor; 5-rotating blades; 6-vibrating mounting plate; 7-water supply pipe; 8-vertical water pipe; 9-annular water pipe; 10-packaging cover; 11-connecting rod; 12-fermentation tank body; 13-packaging outer edge; 14-external short pipe; 15-sampling short pipe; 16-trachea; 17-elastic sheet; 18-connecting ring; 19-connecting disc; 20-sliding disc; 21-plug-in shaft; 22-sampling spring; 23-blocking plate; 24-sampling tube; 25-sealing gasket; 26-sampling shaft; 27-sampling hole; 28-support frame; 29-handwheel; 30-threaded rod; 31-limiting disc; 32-prying rod; 33-extension rod; 34-water seal groove; 35-counterweight block; 36-stirring blade; 37-follower plate. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1-9As shown, a brine fermentation device for making flavored stinky tofu includes a box shell 2, which is a square box. The four corners of the bottom of the box shell 2 are fixedly equipped with box legs 1 for support. In other embodiments, universal wheels can be installed on the box legs 1, which are more convenient to move. A vibration mounting plate 6 is installed in the box shell 2, and the vibration mounting plate 6 is slidably installed in the box shell 2. The four corners of the lower side of the vibration mounting plate 6 are also equipped with supporting feet, and the lower side of the vibration mounting plate 6 is hollowed out. A water supply pipe 7 is installed on the vibration mounting plate 6, and the vibration mounting plate 6 and the water supply pipe 7 are fixed by bolts. The water supply pipe 7 is equipped with a vertical water pipe 8 and an annular water pipe 9, which are connected to each other. Two vertical water pipes 8 are provided for water inlet and outlet. The annular water pipe 9 is also provided with multiple layers to connect with the vertical water pipe 8 to form a passage. In other embodiments, water can be used instead of water to control the temperature of the box shell 2. The box shell 2 is filled with water, and the annular water pipe 9 controls the temperature of the water. When the box shell 2 is filled with water, the vertical water pipe 8 and the annular water pipe 9 can also be replaced by heating wires to directly heat the liquid in the box shell 2. The fermentation tank body 12 is equipped with a sealing cover 10. Hot water or cold water can be passed through the vertical water pipe 8 for temperature control. The water filling position in the box shell 2 can be changed according to demand. Heating or cooling the water through the annular water pipe 9 can more evenly control the temperature in the fermentation tank body 12, making the fermentation more stable and easier to control.

[0031] In this embodiment, the fermentation tank body 12 is provided with a packaging outer edge 13, and a water seal groove 34 is provided in the packaging outer edge 13. The edge of the packaging cover 10 is inserted into the water seal groove 34, and the water seal groove 34 is filled with water. The packaging cover 10 is fixedly mounted with a plug rod 11, and a counterweight 35 is sleeved on the plug rod 11. The weight of the packaging cover 10 is controlled by setting the number of counterweights 35. In a natural state, the packaging cover 10 presses against the water seal groove 34, ensuring a seal through water while allowing the gas in the fermentation tank body 12 to be discharged. As fermentation proceeds, a large amount of gas is generated in the fermentation tank body 12, and the pressure in the fermentation tank body 12 increases, which will push open the packaging cover 10. The pressure in the fermentation tank body 12 is controlled by increasing the number of counterweights 35. The number of counterweights 35 is controlled according to the amount of material in the fermentation tank body 12.

[0032] In this embodiment, a vibrating electric cylinder 3 and a rotating motor 4 are fixedly mounted under the box shell 2. The rotating motor 4 is located in the central part and maintains a coaxial position with the fermentation tank body 12. A plurality of vibrating electric cylinders 3 are provided and are evenly arranged around the rotating motor 4. The output end of the vibrating electric cylinder 3 is connected to a vibrating mounting plate 6, driving the vibrating mounting plate 6 to move up and down for shaking; a rotating blade 5 is mounted on the output shaft of the rotating motor 4, and a magnet is mounted on the rotating blade 5. A stirring blade 36 is rotated in the fermentation tank body 12, and the stirring blade 36 is driven to rotate by the magnet. Since supporting feet are provided on the lower side of the vibration mounting plate 6, a gap is left between the lowest position of the vibration mounting plate 6 and the bottom surface of the box shell 2, so that the water in the box shell 2 can fully contact the bottom surface of the fermentation tank body 12, which is beneficial to temperature control. A plurality of magnets can be provided on it, which is more beneficial to control the stirring blade 36. Through the above technical solution, the vibrating electric cylinder 3 and the rotating motor 4 are used for stirring drive, and the stirring blade 36 is driven by the magnet to avoid passing the shaft from the bottom of the fermentation tank body 12, eliminating the step of sealing, greatly reducing costs, and ensuring the internal sealing of the fermentation tank body 12. By shaking the fermentation tank body 12, the fermentation tank body 12 can also be shaken evenly, and shaking and stirring improve the efficiency of this step.

[0033] In this embodiment, two circular holes are provided on the side of the fermentation tank body 12, which are respectively located at the upper and lower positions of the side of the fermentation tank body 12. An external short tube 14 is fixedly installed at the circular hole. The diameter of the external short tube 14 is larger than the diameter of the circular hole. A sampling short tube 15 is fixedly installed on the external short tube 14. The external short tube 14 and the sampling short tube 15 form a cavity on the outside of the circular hole. The cavity is isolated from the outside. An opening and closing structure is provided inside the cavity and the fermentation tank body 12, so that the gas or liquid in the fermentation tank body 12 can be controlled to enter the cavity. Specifically, an air pipe 16 and a sampling tube 24 are provided on the sampling short tube 15. The air pipe 16 can exhaust or inflate the cavity, and the air pipe 16 extracts air from the fermentation tank body 12 for sampling.

[0034] In this embodiment, a sampling shaft 26 is inserted into the circular hole of the fermentation tank body 12. The sampling shaft 26 extends a long distance into the fermentation tank body 12 to prevent it from being completely pulled out. The sampling shaft 26 is a hollow structure and is provided with a plurality of sampling holes 27. A sealing gasket 25 is fixedly mounted on the end of the sampling shaft 26. The sealing gasket 25 is made of rubber and can be sealed by squeezing the fermentation tank body 12. In a natural state, the sealing gasket 25 is tightly attached to the side wall of the fermentation tank body 12. When the sampling shaft 26 is pulled out, liquid or gas can flow from the sampling shaft 26 into the sampling short tube 15. The sealing gasket 25 is fixedly provided with a plug-in shaft 21, and a toggle disk 20 is fixedly provided at the end of the plug-in shaft 21. By pulling the toggle disk 20, the sampling shaft 26 can be driven to move outward, and the sealing gasket 25 leaves the surface of the fermentation tank body 12. A blocking plate 23 is fixedly provided on the sampling short tube 15. The blocking plate 23 is made of a rigid material and is slidably connected to the plug-in shaft 21. And keep coaxial, the plug shaft 21 passes through the blocking plate 23, and only a small gap is left between the plug shaft 21 and the blocking plate 23. The connecting ring 18 is made of rigid material. The connecting ring 18 is fixedly mounted on the sampling short tube 15. The connecting ring 18 is fixedly mounted on the elastic sheet 17. The elastic sheet 17 is a flexible material with elasticity, specifically rubber. When deformation occurs, it can also maintain a seal at all times. The elastic sheet 17 is fixedly mounted on the connecting disc 19. The connecting disc 19 is made of rigid material and is fixedly connected to the plug shaft 21. There is no gap between the connecting disc 19 and the plug shaft 21 to maintain a seal. The specific plug shaft 21 is divided into two sections, one section is located on the inner side of the connecting disc 19, and the other section is located on the outer side of the connecting disc 19.

[0035] In this embodiment, a sampling spring 22 is fixedly mounted between the connecting disc 19 and the baffle plate 23. In its natural state, the sampling spring 22 is fully compressed, and the sealing block 25 is in close contact with the sidewall of the fermentation tank body 12. When air is evacuated from the sampling short tube 15 to create a negative pressure, the connecting disc 19 is even more closely pressed against the sampling spring 22, and thus the sealing block 25 is also in close contact with the fermentation tank body 12. Two circular holes are provided in the fermentation tank body 12, one for the liquid and the other for the gas, enabling sampling and observation of both parts. Using the air pipe 16 to create a negative pressure in the sampling short tube 15 allows sampling. The elastic sheet 17 can be tightened to mate with the plug-in shaft 21, ensuring a constant seal and preventing contamination of the interior of the fermentation tank body 12 during sampling.

[0036] In this embodiment, a support frame 28 is fixed on the follower plate 37, a prying rod 32 is hinged on the support frame 28, an extension rod 33 is fixed on one end of the prying rod 32, and the distance between the other end of the prying rod 32 and the hinge point is greater than the distance from the extension rod 33 to the hinge of the prying rod 32.

[0037] In this embodiment, a threaded hole is provided on the support frame 28 , in which a threaded rod 30 is fitted. A prying rod 32 is fixedly mounted on the first end of the threaded rod 30 , and the prying rod 32 limits the height of the extension rod 33 from tilting up. This structure is used when adding materials to the fermentation tank body 12. When it is necessary to add materials to the fermentation tank body 12, the materials are put into the sampling short tube 15 through the sampling tube 24, and then the sampling tube 24 valve is closed, and the air pipe 16 pressurizes the sampling short tube 15. At this time, the limit plate 31 is required to support the toggle plate 20 to prevent the elastic sheet 17 from expanding outward and pushing open the toggle plate 20. Then, the hand wheel 29 is slowly rotated to drive the threaded rod 30 to allow the toggle plate 20 to gradually move outward, and the sealing gasket 25 also gradually leaves the side wall of the fermentation tank body 12. The material is filled into the fermentation tank body 12 by air pressure. Through the above technical solution, the toggle plate 20 can be easily lifted for sampling by utilizing the lever principle of the pry rod 32, and the lifting height is controlled by the limit plate 31 to prevent the plug-in shaft 21 from being pulled out too much, causing the sampling shaft 26 to detach from the fermentation tank body 12.

[0038] Working principle: first, water is passed into the box shell 2, then into the vertical water pipe 8, the packaging cover 10 is opened, and the materials required for fermentation are put into the fermentation tank body 12, and then a small amount of water is added to the water seal groove 34, the packaging cover 10 is placed in the water seal groove 34, and then a plurality of counterweights 35 are placed on the packaging cover 10, and the counterweights 35 are plugged into the plug-in rod 11. At this time, the water level in the box shell 2 is controlled, and then the water level in the vertical water pipe 8 is heated, or it can be replaced with a heating wire for heating. When stirring is needed, the vibrating electric cylinder 3 and the rotating motor 4 are started, and the vibrating electric cylinder 3 drives the vibrating mounting plate 6, the vertical water pipe 8, and the follower plate 37 to move up and down as a whole, thereby driving the fermentation tank body 12 to move up and down, shaking the material in the fermentation tank body 12, and at the same time, the rotating motor 4 can be started, and the rotating motor 4 drives the rotating blade 5 to rotate. The magnet on the rotating blade 5 drives the stirring blade 36 to rotate, stirring the material in the fermentation tank body 12, and then let it stand for sufficient reaction and fermentation.

[0039] During the fermentation process, sampling and observation are required. At this time, the gas in the sampling short tube 15 is extracted to the air pump connected through the trachea 16, and then a negative pressure is formed in the sampling short tube 15. At this time, the elastic sheet 17 and the connecting disc 19 move inward, and the inner part refers to the position close to the axis of the fermentation tank body 12. Then the prying rod 32 is manually pressed down, and the prying rod 32 drives the extension rod 33, and the extension rod 33 tilts the dial plate 20. The extension rod 33 is a fork-shaped structure, that is, the dial plate 20 is inserted. In order to prevent interference, the end of the prying rod 32 is also fork-shaped, located on both sides of the plug-in shaft 21, and moves outward. The toggle disk 20 is pushed against the toggle disk 20, and then the toggle disk 20 is inserted. The toggle disk 20 drives the plug-in shaft 21, the plug-in shaft 21 drives the connecting disc 19, the connecting disc 19 drives the sampling spring 22, and the plug-in shaft 21 drives the sealing gasket 25 to leave the fermentation tank body 12. The sampling shaft 26 is pulled out. At this time, the sampling hole 27 reaches the sampling short tube 15. The gas or liquid in the fermentation tank body 12 will move to a part of the sampling short tube 15 due to the negative pressure. Then the toggle disk 20 is released, the sealing gasket 25 is sealed again, the valve of the sampling tube 24 is opened, and the taken out samples are collected for observation and detection.

[0040] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A brine fermentation device for producing flavored stinky tofu, characterized in that: The invention comprises a box shell (2), a vibration mounting plate (6) is installed in the box shell (2), a water supply pipe (7) is installed on the vibration mounting plate (6), a vertical water pipe (8) and an annular water pipe (9) are installed on the water supply pipe (7), the vertical water pipe (8) and the annular water pipe (9) are connected, water flows in the vertical water pipe (8) to control the temperature in the box shell (2), the box shell (2) is filled with water, the annular water pipe (9) controls the temperature of the water, and the fermentation tank body (12) is equipped with a packaging cover (10).

2. The brine fermentation device for producing flavored stinky tofu according to claim 1, characterized in that: The fermentation tank body (12) is provided with a packaging outer edge (13), a water seal groove (34) is provided in the packaging outer edge (13), the edge of the packaging cover (10) is plugged into the water seal groove (34), the water seal groove (34) is filled with water, and the packaging cover (10) is fixedly provided with a plug-in rod (11), and a counterweight (35) is sleeved on the plug-in rod (11). The weight of the packaging cover (10) is controlled by setting the number of the counterweight (35).

3. The brine fermentation device for producing flavored stinky tofu according to claim 1, characterized in that: A vibrating electric cylinder (3) and a rotating motor (4) are fixedly mounted under the housing (2). The output end of the vibrating electric cylinder (3) is connected to a vibrating mounting plate (6), driving the vibrating mounting plate (6) to move up and down for shaking. The output shaft of the rotating motor (4) is equipped with a rotating blade (5), and a magnet is mounted on the rotating blade (5). A stirring blade (36) is rotatably mounted in the fermentation tank body (12), and the stirring blade (36) is driven to rotate by the magnet.

4. The brine fermentation device for producing flavored stinky tofu according to claim 1, characterized in that: Two circular holes are provided on the side of the fermentation tank body (12), and external short tubes (14) are fixedly installed at the circular holes. A sampling short tube (15) is fixedly installed on the external short tube (14), and an air pipe (16) and a sampling tube (24) are provided on the sampling short tube (15). The air pipe (16) draws air from the fermentation tank body (12) to perform sampling.

5. The brine fermentation device for producing flavored stinky tofu according to claim 4, characterized in that: A sampling shaft (26) is inserted into the circular hole of the fermentation tank body (12). The sampling shaft (26) is a hollow structure. A plurality of sampling holes (27) are provided on the sampling shaft (26). A sealing pad (25) is fixedly mounted on the end of the sampling shaft (26). In a natural state, the sealing pad (25) is in close contact with the side wall of the fermentation tank body (12).

6. The brine fermentation device for producing flavored stinky tofu according to claim 5, characterized in that: The sealing pad (25) is fixedly provided with a plug-in shaft (21), the end of which is fixedly provided with a toggle plate (20), and the sampling short tube (15) is fixedly provided with a blocking plate (23), which is slidably connected to the plug-in shaft (21).

7. The brine fermentation device for producing flavored stinky tofu according to claim 6, characterized in that: The sampling short tube (15) is fixedly provided with a connecting ring (18), an elastic sheet (17) is fixedly provided on the connecting ring (18), a connecting disc (19) is fixedly provided on the elastic sheet (17), and the connecting disc (19) is fixedly connected to the plug-in shaft (21).

8. The brine fermentation device for producing flavored stinky tofu according to claim 7, characterized in that: A sampling spring (22) is fixedly mounted between the connecting disc (19) and the baffle plate (23). In a natural state, the sampling spring (22) is fully compressed, and the sealing pad (25) is in close contact with the side wall of the fermentation tank body (12).

9. The brine fermentation device for producing flavored stinky tofu according to claim 8, characterized in that: The follower plate (37) is fixedly provided with a support frame (28), a prying rod (32) is hingedly provided on the support frame (28), an extension rod (33) is fixedly provided on one end of the prying rod (32), and a distance between the other end of the prying rod (32) and the hinge point is greater than a distance between the extension rod (33) and the prying rod (32) at the hinge.

10. The brine fermentation device for producing flavored stinky tofu according to claim 8, characterized in that: A threaded hole is provided on the support frame (28), and a threaded rod (30) is fitted in the threaded hole. A prying rod (32) is fixedly mounted on the first end of the threaded rod (30), and the prying rod (32) limits the height of the extension rod (33) from tilting up.

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