Fermentation production device for plant beverage

Abstract

The invention belongs to the technical field of fermentation, and particularly relates to a plant beverage fermentation production device which comprises a fermentation tank used for storing materials needed by fermentation, the fermentation tank is formed by combining a tank body and a top cover, a first discharging pipe is fixed to the bottom of the tank body, a second discharging pipe is fixed to the side wall of the top cover, and a feeding pipe and a water inlet pipe are arranged at the top of the top cover; the collecting assembly is arranged in the fermentation tank and used for collecting yeast in the fermentation tank, the collecting assembly comprises a lead screw, the lead screw is in threaded connection with a disc, a filtering assembly used for filtering the yeast is arranged above the disc, and a through groove is formed in the disc; the on-off assembly is arranged on the disc and is used for controlling the connection and disconnection of the through groove; the device is simple in structure and convenient to operate, yeast can be completely collected conveniently by arranging the collecting assembly, and the collecting efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fermentation, in particular to a fermentation production device for plant beverages. Background Art

[0002] The production of plant-based beverages has a long history. Beer, a common fermented beverage, is typically made from wheat and barley malt, undergoing liquid gelatinization and saccharification, followed by liquid fermentation. During the craft beer fermentation process, yeast must be removed promptly before fermentation of the mash is complete, ensuring maximum yeast activity for reuse.

[0003] Patent application CN115746976B discloses a craft beer fermentation tank, the key points of its technical solution are: it includes a tank body with an exhaust structure, several supporting legs are fixedly installed on the bottom of the tank body, and a feed pipe with a shut-off valve is fixedly installed on the top of the fermentation tank. The application is provided with an upper movable pipe and a lower movable pipe, which can meet the yeast position requirements of ale and lager beer, and secondly, avoid the discharge of yeast during impurities removal. In addition, the application facilitates the recycling of yeast, and avoids the contact of the raw pulp with the outside air during the recycling process, so as to avoid affecting the taste of the beer.

[0004] However, these technologies often suffer from the following drawbacks: Existing technologies employ upper and lower collection structures designed to accommodate the fermentation needs of different yeast types. However, these devices are complex in structure and, in practical applications, struggle to quickly collect yeast, resulting in poor collection efficiency. To address this issue, the present invention provides a fermentation production device for plant-based beverages. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a fermentation production device for plant beverages according to the present invention comprises: The fermentation tank is used to store the materials required for fermentation. The fermentation tank is composed of a tank body and a top cover. A discharge pipe 1 is fixed to the bottom of the tank body, a discharge pipe 2 is fixed to the side wall of the top cover, and a feed pipe and a water inlet pipe are provided on the top of the top cover. A collecting assembly is disposed inside the fermentation tank and is used to collect yeast inside the fermentation tank. The collecting assembly includes a screw, which is rotatably mounted in the middle of the top cover. The bottom end of the screw extends to the bottom of the tank body. A disc is threadedly connected to the screw, and a filtering assembly for filtering yeast is disposed above the disc. A motor for driving the screw to rotate is fixed above the top cover, and a through slot is formed on the disc. The on-off assembly is arranged on the disc and is used to control the conduction and disconnection of the through slot.

[0007] Preferably, the filter assembly includes a mounting frame, a filter layer is fixed in the middle of the mounting frame, and the mounting frame is slidably sleeved on the screw rod.

[0008] Preferably, a vertical rod is provided on the disc, and the top end of the vertical rod slides through corresponding through holes on the mounting frame and the top cover in a sealed manner.

[0009] Preferably, the on-off assembly includes a sealing plate, which is slidably engaged with the top of the through groove, and a connecting rod is fixed to the side of the sealing plate. The end of the connecting rod away from the sealing plate is fixedly connected to the vertical rod, and an active cavity is opened inside the disc. The bottom end of the vertical rod is sealed and slidably inserted in the active cavity. The vertical rod is a hollow tube, and a square connecting plate is fixed to the bottom of the vertical rod. The side wall of the connecting plate is in contact with the inner wall of the active cavity, and an air outlet is opened in the middle of the connecting plate. The top of the vertical rod is connected to the external air source through a hose.

[0010] Preferably, an annular installation cavity 1 is opened in the side wall of the through groove, a sealing ring 1 is installed inside the installation cavity 1, the sealing ring 1 is hollow in the middle, and the sealing ring 1 is connected to the movable cavity through a connecting pipe 1.

[0011] Preferably, a second installation cavity is opened on the side wall of the disc, a second sealing ring is installed in the second installation cavity, the middle of the second sealing ring is hollow, and the second sealing ring is connected with the first sealing ring through a second connecting pipe.

[0012] Preferably, a blocking rod is fixed on the inner wall of the top of the top cover.

[0013] Preferably, a groove is provided on the upper end surface of the disc, the connecting rod is arranged in the groove, and the depth of the groove is greater than the thickness of the connecting rod.

[0014] Preferably, an annular groove is provided in the middle of the top cover, which passes through from top to bottom. A rotating ring is slidably installed in the middle of the annular groove. A support rod is fixed inside the annular groove. The rotating ring is arranged above the support rod. A retaining ring is fixed on the top of the top cover to prevent the rotating ring from falling off, and the water inlet pipe is installed on the rotating ring.

[0015] The beneficial effects of the present invention are as follows: 1. The fermentation production device for a plant beverage described in the present invention uses an on-off component to control the conduction of the through slot, and then drives the filter component to move upward. The slurry can pass through the filter component and flow to the bottom of the disc through the through slot. The yeast at the bottom or top of the slurry will be blocked and collected by the filter component. The disc and filter component are driven to move above the slurry. At this time, the through slot is controlled to close by the on-off component, so that the disc forms a complete structure to isolate the slurry below from the air above. After that, water is injected into the interior through the water inlet pipe, and the yeast on the surface of the filter component is discharged from the discharge pipe 2 by the water flow, which facilitates the collection of yeast, reuses it, and saves resources. The above method can be applied to yeast collection in the production process of lager beer and ale beer at the same time. It is simple to operate and has high collection efficiency.

[0016] 2. The fermentation production device of plant beverage described in the present invention drives the disc and the filter assembly to move upward to the upper part of the fermentation tank synchronously by the screw rod, and the blocking rod first contacts the filter assembly to prevent the filter assembly from continuing to move. At this time, the disc continues to move upward for a distance. At this time, the mounting frame in the filter assembly squeezes the sealing plate, presses the sealing plate into the through groove, and closes the through groove. At the same time, the vertical rod and the connecting plate are driven downward by the connecting rod to press the air below the active cavity into the sealing ring 1 and the sealing ring 2. The sealing ring 1 expands and fits tightly with the side wall of the sealing plate, so that the sealing plate can better block the through groove. The sealing ring 2 expands and fits tightly with the inner wall of the fermentation tank, further improving the sealing effect of the disc, effectively isolating the slurry below and the cavity above, avoiding water leakage or air leakage when using water to flush yeast, so as to ensure the quality of beer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a perspective view of the present invention; Figure 2 is a partial cross-sectional view of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 is a cross-sectional view of the top cover of the present invention; Figure 6 It is a distribution diagram of the concentric rings and nozzles of the present invention.

[0019] In the figure: 1. Tank body; 2. Top cover; 3. Discharge pipe 1; 4. Discharge pipe 2; 5. Motor; 6. Feed pipe; 7. Water inlet pipe; 8. Vertical rod; 9. Screw rod; 10. Disc; 11. Mounting frame; 12. Filter layer; 13. Baffle rod; 14. Movable cavity; 15. Air outlet; 16. Connecting pipe 1; 17. Mounting cavity 1; 18. Sealing ring 1; 19. Connecting rod; 20. Through groove; 21. Closing plate; 22. Connecting pipe 2; 23. Mounting cavity 2; 24. Sealing ring 2; 25. Annular groove; 26. Support rod; 27. Rotating ring; 28. Baffle ring; 29. ​​Concentric rings; 30. Nozzle. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Example 1: Figures 1 to 5 As shown, a fermentation production device for a plant beverage according to an embodiment of the present invention includes: The fermentation tank is used to store the materials required for fermentation. The fermentation tank is composed of a tank body 1 and a top cover 2. A discharge pipe 3 is fixed to the bottom of the tank body 1, a discharge pipe 2 4 is fixed to the side wall of the top cover 2, and a feed pipe 6 and a water inlet pipe 7 are provided on the top of the top cover 2; A collecting assembly is provided inside the fermentation tank and is used to collect yeast inside the fermentation tank. The collecting assembly includes a screw 9, which is rotatably mounted in the middle of the top cover 2. The bottom end of the screw 9 extends to the bottom of the tank body 1. A disc 10 is threadedly connected to the screw 9. A filtering assembly for filtering yeast is provided above the disc 10. A motor 5 for driving the screw 9 to rotate is fixed above the top cover 2. A through slot 20 is formed on the disc 10. The on-off assembly is provided on the disc 10 and is used to control the conduction and disconnection of the through slot 20; During operation, the motor 5 first drives the screw 9 to rotate, driving the disc 10 to move to the lowest point of the tank body 1. The filter assembly slides down with the disc 10, and the raw mash and yeast are added simultaneously from the feed pipe 6, so that the yeast and raw mash are mixed and the yeast reacts in the raw mash to ferment the raw mash. In the production process of lager beer, in the early fermentation stage, the yeast is in an active fermentation state. When the yeast is added to the raw mash, the yeast begins to rapidly absorb sugars, multiply, and produce carbon dioxide and alcohol. In the middle fermentation stage, the yeast begins to multiply rapidly, and the yeast cells form a suspended state in the fermentation liquid. At this time, the yeast cells are still single and in a state of division. Some yeast cells begin to form short chains or aggregate into small clumps. In the late fermentation stage, as fermentation progresses, the sugars are gradually consumed, the yeast activity gradually slows down, and the yeast cells begin to settle to the bottom, forming a precipitate. In addition, in the production process of ale beer, the fermentation state of yeast in the early and middle stages is similar, except that the yeast floats to the surface of the liquid in the late fermentation stage. The fermentation temperatures of the two stages are different. Therefore, a heating device is installed on the outer wall of the fermentation tank to control the fermentation temperature so that it can be suitable for the production of different types of beer. The filter assembly 10 is driven by the screw rod 9 and the filter assembly 10 is driven upward to move the yeast from the filter assembly 10 to the bottom of the filter assembly 10. The yeast at the bottom and the top of the slurry will be blocked and collected by the filter assembly 10. The filter assembly 10 is driven to move above the slurry. At this time, the through groove 20 is controlled by the on-off component to close, so that the disc 10 forms a complete structure to isolate the slurry below from the air above, avoiding water leakage or air leakage when the yeast is washed with water, so as to ensure the quality of the beer. Water is then injected into the interior through the water inlet pipe 7, and the yeast on the surface of the filter assembly is discharged from the discharge pipe 2 4 by the water flow. The above method can be applied to the yeast collection process of lager beer and ale beer at the same time, with simple operation and high collection efficiency. In addition, an air inlet pipe is specially provided at the side wall of the lower part of the fermentation tank, and the air inlet pipe is tightly connected to the external oxygen supply equipment. Through the oxygen supply equipment and the air inlet pipe connected thereto, oxygen can be effectively replenished to the interior of the fermentation tank, thereby fully meeting the specific oxygen needs of yeast in the early growth process. It is worth mentioning that the oxygen supply equipment used belongs to the existing disclosed technical scope, and its working principle and operation method are well known in the relevant field, so no excessive elaboration or detailed description will be given here.

[0022] The filter assembly includes a mounting frame 11, a filter layer 12 is fixed in the middle of the mounting frame 11, and the mounting frame 11 is slidably sleeved on the screw rod 9; when working, the filter layer 12 can be a filter structure, and its filter aperture can be set according to actual needs, so that it can effectively intercept and filter yeast and impurities, thereby separating yeast and impurities from beer, ensuring the quality and taste of beer.

[0023] The disc 10 is provided with a vertical rod 8, the top end of which slides through the corresponding through holes on the mounting frame 11 and the top cover 2 in a sealed manner. When working, the vertical rod 8 is provided to limit the rotation of the disc 10 so that the disc 10 can only move up and down along the screw rod 9.

[0024] The on-off assembly includes a sealing plate 21, which is slidably engaged with the top of the through groove 20. A connecting rod 19 is fixed to the side of the sealing plate 21. The end of the connecting rod 19 away from the sealing plate 21 is fixedly connected to the vertical rod 8. An active cavity 14 is provided inside the disc 10. The bottom end of the vertical rod 8 is sealed and slidably inserted into the active cavity 14. The vertical rod 8 is a hollow tube. A square connecting plate is fixed to the bottom of the vertical rod 8. The side wall of the connecting plate is in contact with the inner wall of the active cavity 14. An air outlet 15 is provided in the middle of the connecting plate. The top of the vertical rod 8 is connected to an external air source through a hose. During operation, before starting to collect yeast, use a hose to ventilate the interior of the vertical rod 8, and the gas is discharged into the bottom of the active cavity 14 along the inner cavity of the vertical rod 8 and the air outlet 15. The gap between the vertical rod 8 and the inner wall of the active cavity 14 is sealed by setting a connecting plate. The gas at the bottom of the active cavity 14 can push the vertical rod 8 to move upward, and then drive the sealing plate 21 to move upward synchronously through the connecting rod 19, so that the sealing plate 21 is moved to the top of the through groove 20. At this time, the through groove 20 is in a conducting state, and the slurry can pass through the filter layer 12 and flow into the through groove 20, and the sealing plate 21 can lift the filter assembly, so that the filter layer 12 and the disc 10 are separated. Separation makes it convenient for the slurry above the filter layer 12 to pass through different positions of the filter layer 12, thereby improving the collection efficiency of yeast; further, by accurately controlling the concentration and volume of the slurry inside the fermentation tank, it is ensured that in the process of using the filter layer 12 to filter the sediment, the filter layer 12 will not be completely blocked due to the accumulation of sediment. The purpose of doing so is to ensure that the filter layer 12 can remain unobstructed throughout the entire filtration process, thereby successfully completing its filtration task, ensuring that the filtration effect meets the expected standards, and avoiding the occurrence of a decrease in filtration efficiency or filtration failure due to clogging of the filter layer.

[0025] In addition, the square connecting plate fits with the inner wall of the movable cavity 14, which can limit the vertical rod 8 so that the vertical rod 8 can only move up and down along the movable cavity 14 and will not rotate, thereby limiting the movement direction of the sealing plate 21 so that the sealing plate 21 can only move straight up and down along the depth direction of the through groove 20, so that the conduction and closure of the through groove 20 can be controlled by the sealing plate 21.

[0026] An annular mounting cavity 17 is provided in the side wall of the through groove 20, and a sealing ring 18 is installed inside the mounting cavity 17. The sealing ring 18 is hollow in the middle and is connected to the active cavity 14 through a connecting pipe 16. During operation, before using water to flush out the yeast above the filter layer 12, it is necessary to control the sealing plate 21 to move downward to block the through groove 20. At this time, the vertical rod 8 is pressed downward, thereby driving the air below the connecting plate to move downward, so that the gas inside the active cavity 14 is introduced into the sealing ring 18 through the connecting pipe 16, and the sealing ring 18 expands and becomes larger. When the sealing plate 21 moves downward, the sealing ring 18 and the side wall of the sealing plate 21 fit tightly, so that the sealing effect is better.

[0027] The side wall of the disc 10 is provided with a second installation cavity 23, in which a second sealing ring 24 is installed. The center of the second sealing ring 24 is hollow and the second sealing ring 24 is connected to the first sealing ring 18 via the second connecting pipe 22. During operation, gas enters the second sealing ring 24 through the second connecting pipe 22, and the second sealing ring 24 expands, so that the second sealing ring 24 fits tightly against the inner wall of the fermentation tank, further improving the sealing effect of the disc 10, effectively isolating the slurry below from the cavity above, and preventing leakage when using water to flush the yeast.

[0028] The sealing ring 18 and the sealing ring 24 are both made of elastic rubber material.

[0029] A stop rod 13 is fixed on the inner wall of the top of the top cover 2; during operation, the disc 10 and the filter assembly are driven to move upward to the upper part of the fermenter by the screw rod 9, and the stop rod 13 first contacts the filter assembly to prevent the filter assembly from continuing to move. At this time, the disc 10 continues to move upward for a distance. At this time, the mounting frame 11 in the filter assembly squeezes the sealing plate 21, pressing the sealing plate 21 into the through groove 20 to close the through groove 20. At the same time, the vertical rod 8 and the connecting plate are driven downward by the connecting rod 19, and the air below the active chamber 14 is pressed into the sealing ring 18 and the sealing ring 24, so as to improve the sealing effect of the disc 10; The blocking rod 13 can also limit the position of the filter assembly so that the filter assembly can be flush with the side discharge pipe 2 4 to discharge the yeast.

[0030] The upper end surface of the disc 10 is provided with a groove, in which the connecting rod 19 is arranged. The depth of the groove is greater than the thickness of the connecting rod 19. During operation, the groove is provided to accommodate the connecting rod 19, so that the filter assembly can fit in with the top of the disc 10, thereby reducing the amount of water used when using water to flush out the yeast.

[0031] Example 2: Figure 5As shown in the comparative example 1, another embodiment of the present invention is as follows: an annular groove 25 is provided in the middle of the top cover 2, which passes through the top and bottom. A rotating ring 27 is slidably installed in the middle of the annular groove 25. A support rod 26 is fixed inside the annular groove 25. The rotating ring 27 is arranged above the support rod 26. A retaining ring 28 is fixed on the top of the top cover 2 to prevent the rotating ring 27 from falling off. The water inlet pipe 7 is installed on the rotating ring 27. During operation, the support rod 26 and the retaining ring 28 are provided to restrict the rotating ring 27 in the annular groove 25, so that the rotating ring 27 can rotate along the annular groove 25, and then the water inlet pipe 7 can rotate with the rotating ring 27, thereby fully flushing the surface of the filter layer 12, so as to efficiently collect yeast. Furthermore, in order to significantly improve the flushing effect, a vertical pipe, i.e., a standpipe, can be fixedly installed below the water inlet pipe 7. A plurality of concentric rings 29 of different sizes are firmly fixed to the bottom of the standpipe. These concentric rings 29 are interconnected through a plurality of communication channels to form an integral flushing system. The concentric rings 29 are overlapped on the support blocks inside the top cover 2. These support blocks provide effective auxiliary support for the concentric rings 29 to ensure the stability of the entire structure. A plurality of nozzles 30 are evenly distributed at the bottom of each concentric ring 29 to ensure that the water flow can evenly cover the surface of the filter layer 12 during flushing. During the flushing process, water first flows into the vertical pipe through the water inlet pipe 7, then enters each concentric ring 29, and is then sprayed out through the nozzle 30 at the bottom, forming a strong and uniform flushing water flow. By providing multiple nozzles 30, the surface of the filter layer 12 can be fully flushed; the nozzle 30 at the bottom of the outermost ring is tilted to target the dead corners inside the tank body, which can effectively remove accumulated dirt and ensure the cleaning effect of the filter layer; In addition, in order to further improve the flushing effect, a cylinder device can be installed on the top cover 2 to drive the rotating ring 27 and the water inlet pipe 7 to reciprocate at a certain angle, so that the vertical pipe can move within the range between two adjacent support rods 26. Through this movement, the concentric rings 29 and the nozzle 30 can be driven to rotate, so that the flushing water flow can cover more areas, thereby significantly improving the cleaning effect and ensuring that the filter layer 12 always maintains a good working condition.

[0032] Working principle: First, the motor 5 drives the screw rod 9 to rotate, driving the disc 10 to move to the lowest point of the tank body 1. The filter component slides down with the disc 10, and the raw pulp and yeast are added from the feed pipe 6 at the same time, so that the yeast and raw pulp are mixed. The yeast reacts in the raw pulp to ferment the raw pulp. In the later stage of fermentation, it is necessary to collect the yeast that floats up or sinks for next use, which can save resources. At this time, the on-off component is used to control the conduction of the through slot 20, and then the motor 5 is controlled to reverse, so as to drive the disc 10 upward through the screw rod 9. The filter assembly moves synchronously, allowing the slurry to pass through the filter assembly and flow through slots 20 to the bottom of disc 10. Yeast at both the bottom and top of the slurry is intercepted and collected by the filter assembly. Disc 10 and the filter assembly are then driven to move above the slurry. The on-off assembly then closes slots 20, completing disc 10 and isolating the slurry below from the air above. Water is then injected into the interior through inlet pipe 7, and the water flow discharges yeast on the surface of the filter assembly through discharge pipe 2 4. This method is applicable to yeast collection in both lager and ale production processes, offering simple operation and high collection efficiency. Before starting to collect yeast, use a hose to ventilate the interior of the vertical rod 8. The gas is discharged into the bottom of the active cavity 14 along the inner cavity of the vertical rod 8 and the air outlet 15. The gap between the vertical rod 8 and the inner wall of the active cavity 14 is sealed by setting a connecting plate. The gas at the bottom of the active cavity 14 can push the vertical rod 8 to move upward, and then drive the sealing plate 21 to move upward synchronously through the connecting rod 19, so that the sealing plate 21 is moved to above the through groove 20. At this time, the through groove 20 is in a conducting state, and the slurry can pass through the filter layer 12 and flow into the through groove 20. The sealing plate 21 can lift the filter assembly, so that the filter layer 12 and the disc 10 are separated, making it convenient for the slurry above the filter layer 12 to pass through different positions of the filter layer 12, thereby improving the yeast collection efficiency. The disc 10 and the filter assembly are driven by the screw rod 9 to move up to the upper part of the fermentation tank synchronously. The blocking rod 13 first contacts the filter assembly to prevent the filter assembly from continuing to move. At this time, the disc 10 continues to move upward for a distance. At this time, the mounting frame 11 in the filter assembly squeezes the sealing plate 21, presses the sealing plate 21 into the through groove 20, and closes the through groove 20. At the same time, the vertical rod 8 and the connecting plate are driven downward by the connecting rod 19, and the air under the active cavity 14 is pressed into the sealing ring 18 and the sealing ring 24. The sealing ring 18 expands and becomes larger, and fits tightly with the side wall of the sealing plate 21, so that the sealing plate 21 can better block the through groove 20. The sealing ring 24 expands and fits tightly with the inner wall of the fermentation tank, further improving the sealing effect of the disc 10, and effectively separating the slurry below and the upper cavity, avoiding water leakage or air leakage when using water to flush the yeast, so as to ensure the quality of the beer.

[0033] The above-mentioned front, back, left, right, up and down are all based on the Figure 1As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0035] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fermentation production device for plant beverages, characterized by: include: A fermentation tank for storing materials required for fermentation, the fermentation tank is composed of a tank body (1) and a top cover (2), a first discharge pipe (3) is fixed to the bottom of the tank body (1), a second discharge pipe (4) is fixed to the side wall of the top cover (2), and a feed pipe (6) and a water inlet pipe (7) are provided on the top of the top cover (2); A collecting assembly is arranged inside the fermentation tank and is used to collect yeast inside the fermentation tank. The collecting assembly includes a screw (9), the screw (9) is rotatably mounted in the middle of the top cover (2), the bottom end of the screw (9) extends to the bottom of the tank body (1), a disc (10) is threadedly connected to the screw (9), a filtering assembly for filtering yeast is arranged above the disc (10), a motor (5) for driving the screw (9) to rotate is fixed above the top cover (2), and a through slot (20) is opened on the disc (10); The on-off assembly is arranged on the disc (10) and is used to control the on and off of the through slot (20).

2. The fermentation production device for a plant beverage according to claim 1, characterized in that: The filter assembly comprises a mounting frame (11), a filter layer (12) is fixed in the middle of the mounting frame (11), and the mounting frame (11) is slidably sleeved on the screw rod (9).

3. The fermentation production device for a plant beverage according to claim 1, characterized in that: A vertical rod (8) is provided on the disc (10), and the top end of the vertical rod (8) is sealed and slidably penetrates corresponding through holes on the mounting frame (11) and the top cover (2) in sequence.

4. The fermentation production device for a plant beverage according to claim 1, characterized in that: The on-off assembly includes a sealing plate (21), which is slidably engaged with the top of the through groove (20), and a connecting rod (19) is fixed to the side of the sealing plate (21), and the end of the connecting rod (19) away from the sealing plate (21) is fixedly connected to the vertical rod (8), and an active cavity (14) is provided inside the disc (10), and the bottom end of the vertical rod (8) is sealed and slidably inserted in the active cavity (14), and the vertical rod (8) is a hollow tube. A square connecting plate is fixed to the bottom of the vertical rod (8), and the side wall of the connecting plate is in contact with the inner wall of the active cavity (14). An air outlet (15) is provided in the middle of the connecting plate, and the top of the vertical rod (8) is connected to an external air source through a hose.

5. The fermentation production device for a plant beverage according to claim 1, characterized in that: An annular installation cavity (17) is provided in the side wall of the through groove (20), and a sealing ring (18) is installed inside the installation cavity (17). The sealing ring (18) is hollow in the middle, and the sealing ring (18) is connected to the movable cavity (14) through a connecting pipe (16).

6. The fermentation production device for a plant beverage according to claim 1, characterized in that: The side wall of the disc (10) is provided with a second installation cavity (23), in which a second sealing ring (24) is installed. The middle of the second sealing ring (24) is hollow, and the second sealing ring (24) is connected to the first sealing ring (18) through the second connecting pipe (22).

7. The fermentation production device for a plant beverage according to claim 1, characterized in that: A blocking rod (13) is fixed on the inner wall of the top of the top cover (2).

8. The fermentation production device for plant beverage according to claim 4, characterized in that: The upper end surface of the disc (10) is provided with a groove, the connecting rod (19) is arranged in the groove, and the depth of the groove is greater than the thickness of the connecting rod (19).

9. The fermentation production device for a plant beverage according to claim 1, characterized in that: An annular groove (25) is provided in the middle of the top cover (2) and extends through the top and bottom. A rotating ring (27) is slidably mounted in the middle of the annular groove (25). A support rod (26) is fixed inside the annular groove (25). The rotating ring (27) is arranged above the support rod (26). A retaining ring (28) is fixed on the top of the top cover (2) to prevent the rotating ring (27) from falling off. The water inlet pipe (7) is mounted on the rotating ring (27).

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