Sandwich type fermentation vat suitable for solid state fermentation meat production

Abstract

The utility model relates to the technical field of solid-state fermented meat fermentation equipment, in particular to a sandwich type fermentation vat suitable for solid-state fermented meat production, which solves the problems that in the prior art, the pressure in the vat is increased, the safety is low, and the oxygen-free environment in the fermentation vat is damaged as external air enters the fermentation vat, and comprises a vat body and a sealing cover, the sealing cover is in sealing fit with an opening of the cylinder body, a locking mechanism is arranged between the sealing cover and the cylinder body, and an exhaust assembly, an observation assembly and a temperature measurement assembly are arranged on the sealing cover. The fermentation vat has the beneficial effects that the sealing cover and the vat body are matched for use, so that a sealed oxygen-free environment can be provided for the fermentation vat, and lactobacillus growth and fermentation are facilitated; an exhaust floating bead in the exhaust assembly is a one-way exhaust mechanism, namely, gas generated in the fermentation cylinder is exhausted outwards, external air cannot enter the fermentation cylinder, it is guaranteed that the interior of the fermentation cylinder is always in an oxygen-free environment, a filter membrane can prevent external microorganisms from entering the fermentation cylinder, and pollution of the external microorganisms to lactic acid bacteria in the fermentation cylinder is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of solid fermentation meat fermentation equipment, in particular to a sandwich fermentation tank suitable for the production of solid fermentation meat. Background Technique

[0002] Traditional fermentation tanks are mostly made of terracotta as a whole. Due to its good air permeability, sealing performance, safety and wide applicability, the terracotta fermentation tank has obvious advantages for the fermentation process and is an ideal choice for the fermentation container in the production of solid fermentation meat. Compared with stainless steel materials, this terracotta fermentation container is beneficial to the fermentation of lactic acid bacteria, making the flavor and taste of solid fermentation meat have layers, endowing the solid fermentation meat with a unique taste and filling it with a strong fragrance. The terracotta fermentation tank has an irreplaceable advantage and position among the fermentation containers of solid fermentation meat.

[0003] The commonly used traditional fermentation tanks for the production of solid fermentation meat are mostly water-covered fermentation vats, which have the characteristics of "sloping shoulders, round belly, and flat bottom", and provide an anaerobic environment for fermentation by adding water for sealing and are convenient for discharging the gas generated during the fermentation process. However, its upper port diameter is small, which is inconvenient for feeding and discharging materials in actual industrial production. When feeding, the processed meat needs to be put in piece by piece, which affects the operation rate. When discharging, the operator needs to use tools or directly reach into the tank to scoop, which takes a lot of time and energy of the operator and is not conducive to the industrialized batch production operation of solid fermentation meat. Although open fermentation tanks are also used in the production of other fermented foods, it is difficult to meet the fermentation requirements of fermented meat products because their sealing and exhaust performance are difficult to achieve the effect of water-covered fermentation vats. Moreover, due to its terracotta material, it is extremely easy to be damaged during production and transportation, causing economic losses and posing an operation risk to the staff.

[0004] The patent with the patent number CN218710281U discloses a special device for the microbial fermentation of sinking vats of wine. A cover plate is arranged at the upper end of the outer cylinder body; it further includes: an inner cylinder body, which is arranged inside the outer cylinder body, an anti-overflow groove is arranged between the outer cylinder body and the inner cylinder body, and the upper end of the anti-overflow groove is in an open form; a first clamping ring, which is arranged on the lower surface of the cover plate, a second clamping ring is arranged outside the first clamping ring, and the first clamping ring and the second clamping ring are both integrally structured with the cover plate; a sealing airbag, which is arranged on the outer walls of the first clamping ring and the second clamping ring, and an air inlet is arranged on one side surface of the cover plate. The above-mentioned special device for fermentation seals between the inner cylinder body and the cover plate by inflating the sealing airbag to ensure the sealing performance. However, during the actual fermentation process, the fermented material will generate gas. Under the condition of the sealed cover plate, the increase in gas will increase the pressure in the tank, affecting the use safety of the fermentation tank, and at the same time, it is easy to cause the sealing between the cover plate and the cylinder body to fail, and external air enters the cylinder body, destroying the anaerobic environment in the fermentation tank. Summary of the Utility Model

[0005] The utility model provides a sandwich fermentation tank applicable to the production of solid-state fermented meat, which solves the problems in the prior art that the pressure in the tank increases, the safety is low, and the external air enters the fermentation tank to destroy the anaerobic environment in the fermentation tank.

[0006] The technical solution of the utility model is realized as follows:

[0007] A sandwich fermentation tank applicable to the production of solid-state fermented meat includes a tank body and a sealing cover. The sealing cover is in sealing cooperation with the opening of the tank body. A locking mechanism is provided between the sealing cover and the tank body. An exhaust assembly, an observation assembly and a temperature measurement assembly are provided on the sealing cover. The combined use of the sealing cover and the tank body can provide a sealed anaerobic environment for the fermentation tank, which is beneficial to the growth and fermentation of lactic acid bacteria. At the same time, the exhaust assembly can realize the exhaust function and discharge the gas generated during the fermentation process to avoid the situation of too high pressure in the fermentation tank.

[0008] The main body of the sealing cover is provided with a first connection hole, a second connection hole and a third connection hole. The exhaust assembly is connected to the first connection hole, the observation assembly is connected to the second connection hole, and the temperature measurement assembly is connected to the third connection hole. The observation assembly is convenient for the staff to observe the state of the fermented meat in the fermentation tank.

[0009] The exhaust assembly includes a first sealing cover and an exhaust float ball. A conical float ball slideway is provided below the first connection hole. The float ball slideway is communicated with the inside of the tank body. The exhaust float ball is arranged in the float ball slideway; the first sealing cover is threadedly connected to the first connection hole; a fourth connection hole is provided on the first sealing cover, a grid plate is provided in the fourth connection hole, and a filter membrane is provided on the grid plate. When no gas is generated in the fermentation tank, the exhaust float ball fits with the float ball slideway to ensure the sealing performance of the fermentation tank; when gas is generated during the fermentation in the fermentation tank, the internal pressure increases, pushing the exhaust float ball to slide upward along the float ball slideway. At this time, the gas is discharged along the gap between the exhaust float ball and the float ball slideway. After the exhaust is completed, the exhaust float ball fits with the float ball slideway again under the action of its own gravity to ensure the sealing performance; during the exhaust process, the filter membrane can prevent external microorganisms from entering the fermentation tank and avoid the pollution of lactic acid bacteria in the fermentation tank by external microorganisms.

[0010] The observation assembly includes a second sealing cover. A transparent glass is provided on the second sealing cover. The second sealing cover is threadedly connected to the second connection hole. A food-grade sealing gasket is provided between the second sealing cover and the second connection hole to ensure the sealing performance at the position of the second connection hole. At the same time, the state of the solid-state fermented meat during fermentation in the fermentation tank can be directly observed through the transparent glass.

[0011] The temperature measurement component includes a third sealing cover and a fourth sealing cover. The third sealing cover is threadedly connected to the third connection hole. A fifth connection hole is provided on the third sealing cover. The fourth sealing cover is threadedly connected to the fifth connection hole. A temperature probe extending into the interior of the cylinder body is provided on the fourth sealing cover. Food-grade gaskets are provided between the third sealing cover and the third connection hole, and between the fourth sealing cover and the fifth connection hole, so as to ensure the sealing performance between the temperature measurement component and the sealing cover body; the temperature probe extending into the fermentation cylinder body can detect the temperature change during the fermentation of solid-state fermented meat.

[0012] The sealing cover includes a sealing cover body. A silica gel sealing gasket is connected to the lower side of the sealing cover body. The silica gel sealing gasket is in extrusion fit with the cylinder body. After the sealing cover is connected to the opening of the cylinder body, the opening of the cylinder body extrudes the silica gel sealing gasket, and the silica gel sealing gasket undergoes elastic deformation to ensure the sealing performance between the sealing cover and the cylinder body; and the frictional force between the silica gel sealing gasket and the cylinder body can ensure the stable installation of the sealing cover, prevent the sealing cover from being lifted by the gas generated during fermentation, and ensure the sealing performance.

[0013] The sealing cover body is provided with a first handle and a second handle. Workers can lift the sealing cover upward through the first handle and the second handle to open the fermentation cylinder, which is convenient for taking out the fermented meat in the fermentation cylinder.

[0014] The cylinder body includes an outer anti-collision cylinder body and an inner fermentation cylinder body. A buffer interlayer is provided between the outer anti-collision cylinder body and the inner fermentation cylinder body; the silica gel sealing gasket is in extrusion fit with the opening of the inner fermentation cylinder body. The outer anti-collision cylinder body plays a role in external anti-collision and support; the buffer interlayer is made of food-grade silica gel material, providing a buffer medium for the inner fermentation cylinder body and the outer anti-collision cylinder body, and at the same time avoiding the breakage of the fermentation cylinder caused by collision during transportation; the inner fermentation cylinder body is made of terracotta material, and both the inner upper edge part and the outside have a smooth structure of pottery glaze, and the pottery glaze is applied on the outside to ensure the overall sealing performance of the inner fermentation cylinder body.

[0015] The locking mechanism includes a first permanent magnet and a second permanent magnet. Both the first permanent magnet and the second permanent magnet are arranged on the sealing cover body. When the sealing cover is connected to the cylinder body, the first permanent magnet and the second permanent magnet are magnetically connected to the outer anti-collision cylinder body. Specifically, both the sealing cover and the outer anti-collision cylinder body are made of stainless steel material that can be magnetized. After the sealing cover is connected to the cylinder body, the permanent magnets are used to adsorb both the sealing cover and the outer anti-collision cylinder body at the same time to ensure the stable connection between the sealing cover and the cylinder body; when the gas in the fermentation cylinder increases, due to the action of the permanent magnets, the separation of the sealing cover and the cylinder body is avoided.

[0016] The upper part of the outer anti-collision cylinder body is provided with a first armrest and a second armrest. The first armrest and the second armrest are symmetrically arranged on the outside of the outer anti-collision cylinder body, which is convenient for workers to hold the fermentation cylinder during operation.

[0017] The beneficial effects of the present utility model are as follows: The combined use of the sealing cover and the cylinder body can provide an airtight and anaerobic environment for the fermentation cylinder, which is conducive to the growth and fermentation of lactic acid bacteria. At the same time, the exhaust assembly can achieve the exhaust function, discharging the gas generated during the fermentation process to avoid excessive pressure in the fermentation cylinder. The exhaust floating bead in the exhaust assembly is a one-way exhaust mechanism, that is, the gas generated in the fermentation cylinder is discharged outward, and the external air cannot enter the fermentation cylinder, ensuring that the fermentation cylinder is always in an anaerobic environment. And the filter membrane can prevent external microorganisms from entering the fermentation cylinder, avoiding the contamination of lactic acid bacteria in the fermentation cylinder by external microorganisms.

[0018] Through the combined use of the outer anti-collision cylinder body, the buffer interlayer, and the inner fermentation cylinder body, it is possible to avoid the collision and breakage of the fermentation vat during the industrial production of solid-state fermented meat. The open cylinder body design facilitates the feeding and discharging of solid-state fermented meat, improves the possibility of mechanized labor operation, reduces the labor intensity and operation cost of workers, and improves production efficiency.

[0019] The observation assembly can directly observe the state of the solid-state fermented meat during fermentation in the fermentation cylinder; the temperature measurement assembly can detect the temperature change of the solid-state fermented meat during fermentation. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a sandwich-type fermentation cylinder suitable for the production of solid-state fermented meat of the present utility model;

[0022] Figure 2 It is a schematic structural diagram of the sealing cover;

[0023] Figure 3 It is a schematic structural diagram of the exhaust assembly;

[0024] Figure 4 It is a schematic structural diagram of the observation window;

[0025] Figure 5 It is a schematic structural diagram of the temperature measurement assembly.

[0026] In the figure: 1. Sealing cover, 2. Outer anti-collision cylinder body, 3. First handrail, 4. Buffer interlayer, 5. Inner fermentation cylinder body, 6. Second handrail, 7. First handle, 8. Second handle, 9. Exhaust assembly, 10. Observation assembly, 11. Temperature measurement assembly, 12. First permanent magnet, 13. Second permanent magnet;

[0027] 101. Sealing cover body, 102. Silicone sealing gasket, 103. First connection hole; 104. Second connection hole; 105. Third connection hole; 106. Exhaust float bead; 107. Float bead slideway;

[0028] 901. First sealing cover; 902. Fourth connection hole; 903. Filter membrane; 904. Grid plate;

[0029] 1001. Second sealing cover; 1002. Transparent glass;

[0030] 1101. Third sealing cover; 1102. Fifth connection hole; 1103. Fourth sealing cover; 1104. Temperature probe. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1, as Figure 1 shown, a sandwich fermentation tank suitable for the production of solid-state fermented meat includes a tank body and a sealing cover 1. The sealing cover 1 is in sealing cooperation with the opening of the tank body. A locking mechanism is provided between the sealing cover 1 and the tank body. An exhaust assembly 9, an observation assembly 10, and a temperature measurement assembly 11 are provided on the sealing cover 1. The cooperation between the sealing cover 1 and the tank body can provide a sealed and anaerobic environment for the fermentation tank, which is beneficial to the growth and fermentation of lactic acid bacteria. At the same time, the exhaust assembly 9 can achieve the exhaust function and discharge the gas generated during the fermentation process to avoid the situation of excessive pressure in the fermentation tank; the staff can observe the state of the solid fermented meat in the fermentation tank through the observation assembly 10 during the fermentation process; the temperature measurement assembly 11 can detect the temperature change in the fermentation tank in real time.

[0033] Further, as Figure 2 shown, the sealing cover body 101 is provided with a first connection hole 103, a second connection hole 104, and a third connection hole 105. The exhaust assembly 9 is connected to the first connection hole 103, the observation assembly 10 is connected to the second connection hole 104, and the temperature measurement assembly 11 is connected to the third connection hole 105. The exhaust assembly 9, the observation assembly 10, and the temperature measurement assembly 11 are connected to the sealing cover body 101. A silicone sealing gasket is provided between each component and the connection hole to ensure the connection tightness between each component and the sealing cover body 1, and prevent external air from entering the fermentation tank.

[0034] Further, as Figure 3As shown in the figure, the exhaust assembly 9 includes a first sealing cover 901 and an exhaust float bead 106. A conical float bead slideway 107 is provided below the first connection hole 103. The float bead slideway 107 communicates with the inside of the cylinder block. The exhaust float bead 106 is arranged in the float bead slideway 107. The first sealing cover 901 is threadedly connected to the first connection hole 103. A fourth connection hole 902 is provided on the first sealing cover 901. A grid plate 904 is provided in the fourth connection hole 902, and a filter membrane 903 is provided on the grid plate 904. When the first sealing cover 901 is threadedly connected to the first connection hole 103, a sealing strip is wound around the external thread of the first sealing cover 901. After the first sealing cover 901 is installed, air leakage between the first sealing cover 901 and the first connection hole 103 is avoided, ensuring the sealing performance of the fermentation tank. Before fermentation, the exhaust float bead 106 is closely attached to the conical inner wall of the auxiliary slideway 107 under the action of its own gravity, ensuring the sealing performance. When gas is generated during fermentation, the gas pushes the exhaust float bead 106 up, and the gas is discharged from the gap between the exhaust float bead 106 and the float bead slideway 107, avoiding the increase in pressure inside the fermentation tank and ensuring the safety of the fermentation process. The exhaust float bead 106 and the float bead slideway 107 are a one-way exhaust mechanism. The gas generated inside the fermentation tank can only be discharged outward, and external air cannot enter the fermentation tank, ensuring that the inside of the fermentation tank is always in an anaerobic environment, facilitating the growth and fermentation of lactic acid bacteria. In addition, the filter membrane 903 can prevent external microorganisms from entering the fermentation tank and avoid contamination of the lactic acid bacteria inside the fermentation tank by external microorganisms.

[0035] Furthermore, as Figure 4 shown in the figure, the observation assembly 10 includes a second sealing cover 1001. A transparent glass 1002 is provided on the second sealing cover 1001. The second sealing cover 1001 is threadedly connected to the second connection hole 104. When the second sealing cover 1001 is threadedly connected to the second connection hole 104, a sealing strip is wound around the external thread of the second sealing cover 1001. After the second sealing cover 1001 is installed, air leakage between the second sealing cover 1001 and the second connection hole 104 is avoided, ensuring the sealing performance of the fermentation tank and preventing external air from entering the fermentation tank and destroying the anaerobic environment. In addition, the state of the solid-state fermented meat inside the fermentation tank during fermentation can be directly observed through the transparent glass 1002.

[0036] Furthermore, as Figure 5As shown in the figure, the temperature measurement component 11 includes a third sealing cover 1101 and a fourth sealing cover 1103. The third sealing cover 1101 is threadedly connected to the third connection hole 103. A fifth connection hole 1102 is provided on the third sealing cover 1101. The fourth sealing cover 1103 is threadedly connected to the fifth connection hole 1102. A temperature probe 1104 extending into the interior of the cylinder body is provided on the fourth sealing cover 1103. Sealing tapes are wound around the external threads of the third sealing cover 1101 and the fourth sealing cover 1103. After the third sealing cover 1101 and the fourth sealing cover 1103 are installed, air leakage at the positions of the third connection hole 103 and the fifth connection hole 1102 is avoided, thereby preventing external air from entering the fermentation tank and destroying the anaerobic environment. The temperature probe 1104 extending into the fermentation tank body can detect the temperature change during the fermentation of solid-state fermented meat.

[0037] Embodiment 2, on the basis of Embodiment 1, a sandwich fermentation tank suitable for the production of solid-state fermented meat, as Figure 2 shown, the sealing cover 1 includes a sealing cover body 101. A silica gel sealing pad 102 is connected to the lower side of the sealing cover body 101. The silica gel sealing pad 102 is in extrusion fit with the cylinder body. After the sealing cover 1 is connected to the opening of the cylinder body, the opening of the cylinder body squeezes the silica gel sealing pad 102, and the silica gel sealing pad 102 undergoes elastic deformation to ensure the sealing performance between the sealing cover 1 and the cylinder body. And the frictional force between the silica gel sealing pad 102 and the cylinder body can ensure the stable installation of the sealing cover 1, prevent the sealing cover 1 from being lifted by the gas generated during fermentation, and ensure the sealing performance.

[0038] Furthermore, a first handle 7 and a second handle 8 are provided on the sealing cover body 101. The staff can lift the sealing cover 1 upward through the first handle 7 and the second handle 8 to open the fermentation tank, which is convenient for taking out the fermented meat in the fermentation tank.

[0039] Furthermore, as Figure 1 shown, the cylinder body includes an outer anti-collision cylinder body 2 and an inner fermentation cylinder body 5. A buffer interlayer 4 is provided between the outer anti-collision cylinder body 2 and the inner fermentation cylinder body 5. The silica gel sealing pad 102 is in extrusion fit with the opening of the inner fermentation cylinder body 5. The outer anti-collision cylinder body 2 plays a role in external anti-collision and support. The buffer interlayer 4 is made of food-grade silica gel, providing a buffer medium for the inner fermentation cylinder body 5 and the outer anti-collision cylinder body 2, and at the same time preventing the fermentation tank from being damaged due to collision during transportation. The inner fermentation cylinder body 5 is made of terracotta. The inner upper edge part and the outside of the inner fermentation cylinder body 5 both have a smooth structure of pottery glaze. Applying pottery glaze on the outside ensures the overall sealing performance of the inner fermentation cylinder body, and applying smooth pottery glaze on the inner upper edge part is to completely fit and seal with the silica gel sealing pad 102.

[0040] Further, the locking mechanism includes a first permanent magnet 12 and a second permanent magnet 13, both of which are arranged on the sealing cover main body 101. When the sealing cover 1 is connected to the cylinder block, the first permanent magnet 12 and the second permanent magnet 13 are magnetically connected to the outer anti-collision cylinder block 2. Specifically, both the sealing cover main body 101 and the outer anti-collision cylinder block 2 are made of stainless steel that can be magnetized. Moreover, the outer anti-collision cylinder block 2 is bent inward to wrap the buffer interlayer 4 and the inner fermentation cylinder block 5. After the sealing cover 1 is connected to the cylinder block, the top surface of the sealing cover main body 101 is flush with the upper edge of the outer anti-collision cylinder block 2. At this time, the first permanent magnet 12 and the second permanent magnet 13 are used to simultaneously adsorb the sealing cover main body 101 and the outer anti-collision cylinder block 2 to ensure the stable connection between the sealing cover 1 and the cylinder block. When the gas in the fermentation cylinder increases, due to the effect of the permanent magnet, the separation of the sealing cover from the cylinder block is avoided.

[0041] Further, a first handrail 3 and a second handrail 6 are provided on the upper part of the outer anti-collision cylinder block 2. The first handrail 3 and the second handrail 6 are symmetrically arranged on the outside of the outer anti-collision cylinder block 2, which is convenient for the staff to hold the fermentation cylinder during operation.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A jacketed fermentation tank suitable for the production of solid-state fermented meat, comprising a tank body and a sealing cover (1), characterized in that, The sealing cover (1) is in sealing fit with the opening of the cylinder block. A locking mechanism is provided between the sealing cover (1) and the cylinder block. An exhaust assembly (9), an observation assembly (10), and a temperature measurement assembly (11) are provided on the sealing cover (1).

2. The sandwich fermentation tank applicable to the production of solid-state fermented meat according to claim 1, characterized in that, On the sealing cover body (101), there are a first connection hole (103), a second connection hole (104), and a third connection hole (105). The exhaust assembly (9) is connected to the first connection hole (103), the observation assembly (10) is connected to the second connection hole (104), and the temperature measurement assembly (11) is connected to the third connection hole (105).

3. The sandwich-type fermentation tank applicable to the production of solid-state fermented meat according to claim 2, characterized in that, The exhaust assembly (9) includes a first sealing cover (901) and an exhaust float bead (106). A conical float bead slideway (107) is provided below the first connection hole (103). The float bead slideway (107) communicates with the inside of the cylinder block. The exhaust float bead (106) is arranged in the float bead slideway (107). The first sealing cover (901) is threadedly connected to the first connection hole (103). A fourth connection hole (902) is provided on the first sealing cover (901). A grid plate (904) is provided in the fourth connection hole (902), and a filter membrane (903) is provided on the grid plate (904).

4. The sandwich fermentation tank applicable to the production of solid-state fermented meat according to claim 2, wherein The observation assembly (10) includes a second sealing cover (1001). A transparent glass (1002) is provided on the second sealing cover (1001). The second sealing cover (1001) is threadedly connected to the second connection hole (104).

5. The sandwich-type fermentation tank applicable to the production of solid-state fermented meat according to claim 2, characterized in that, The temperature measurement assembly (11) includes a third sealing cover (1101) and a fourth sealing cover (1103). The third sealing cover (1101) is threadedly connected to the third connection hole (105). A fifth connection hole (1102) is provided on the third sealing cover (1101). The fourth sealing cover (1103) is threadedly connected to the fifth connection hole (1102). A temperature probe (1104) extending into the inside of the cylinder block is provided on the fourth sealing cover (1103).

6. The sandwich fermentation tank applicable to the production of solid-state fermented meat according to any one of claims 1 to 5, characterized in that, The sealing cover (1) includes a sealing cover body (101). A silica gel sealing gasket (102) is connected to the lower side of the sealing cover body (101). The silica gel sealing gasket (102) is in extrusion fit with the cylinder block.

7. The sandwich fermentation tank applicable to the production of solid-state fermented meat according to claim 6, characterized in that, A first handle (7) and a second handle (8) are provided on the sealing cover body (101).

8. The sandwich fermentation tank applicable to the production of solid-state fermented meat according to claim 7, characterized in that, The cylinder block includes an outer anti-collision cylinder block (2) and an inner fermentation cylinder block (5). A buffer interlayer (4) is provided between the outer anti-collision cylinder block (2) and the inner fermentation cylinder block (5). The silica gel sealing gasket (102) is in extrusion fit with the opening of the inner fermentation cylinder block (5).

9. The sandwich fermentation tank applicable to the production of solid-state fermented meat according to claim 8, characterized in that, The locking mechanism includes a first permanent magnet (12) and a second permanent magnet (13). Both the first permanent magnet (12) and the second permanent magnet (13) are arranged on the sealing cover body (101). When the sealing cover (1) is connected to the cylinder block, the first permanent magnet (12) and the second permanent magnet (13) are respectively magnetically connected to the outer anti-collision cylinder block (2).

10. The sandwich fermentation tank applicable to the production of solid-state fermented meat according to claim 9, characterized in that, A first handrail (3) and a second handrail (6) are provided on the upper part of the outer anti-collision cylinder block (2).

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