Traditional Chinese medicine decoction piece fermentation device

Abstract

The present application relates to the technical field of microbial fermentation, and specifically discloses a fermentation device for traditional Chinese medicine decoction pieces, which comprises a fermentation tank, and the fermentation tank comprises a tank body. The area of the cross section of the lower part of the inner cavity of the tank body perpendicular to the vertical direction gradually decreases in the direction from top to bottom. A discharge port is arranged on the bottom side of the inner wall of the tank body, and a discharge valve is mounted on the discharge port. A pipe body is arranged vertically in the tank body, the bottom end of the pipe body is located above the discharge port of the tank body, and a gap is arranged between the bottom of the pipe body and the bottom side of the inner wall of the tank body. A moving part that can slide sealingly is arranged in the pipe body, and the moving part is connected to one end of a transmission part. A reciprocating driving mechanism that can drive the moving part to move along the length direction of the pipe body is mounted on the pipe body or the fermentation tank. In the fermentation device for traditional Chinese medicine decoction pieces, the traditional Chinese medicinal materials are continuously turned in water, the traditional Chinese medicinal materials and water are in full contact, fermentation dead angles are eliminated, the activity of the strains is ensured, the fermentation speed of the traditional Chinese medicinal materials is accelerated, and the quality of the traditional Chinese medicine decoction pieces is ensured.

Description

Technical Field

[0001] This invention relates to the field of microbial fermentation technology, specifically to a fermentation device for traditional Chinese medicine decoction pieces. Background Technology

[0002] Traditional Chinese medicine (TCM) decoction pieces are products made from processed Chinese medicinal materials that can be directly used in TCM clinical prescriptions or decoctions. The fermentation of Chinese medicinal materials in the production process of TCM decoction pieces utilizes specific microorganisms under suitable temperature, humidity, oxygen and nutrient conditions. Through the enzymes produced by the metabolism of microorganisms, the cell wall components such as cellulose and hemicellulose are decomposed, which promotes the release of effective components in Chinese medicinal materials and produces new active substances, thereby changing the medicinal properties and efficacy.

[0003] Existing fermentation processes for Chinese medicinal herbs are mostly solid-liquid fermentation. Chinese medicinal herbs have a high density and inconsistent shapes, making them prone to sedimentation. This leads to uneven contact between the herbs and water, which can easily cause localized hypoxia or accumulation of microbial metabolites, inhibiting microbial activity and resulting in slow fermentation and unstable quality of the Chinese medicinal herbs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a fermentation device for Chinese herbal medicine slices. The Chinese herbal medicine is constantly turned over in water, and the Chinese herbal medicine and water are in full contact, eliminating fermentation dead corners, ensuring the activity of the strain, accelerating the fermentation speed of Chinese herbal medicine slices, and ensuring the quality of Chinese herbal medicine slices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fermentation device for traditional Chinese medicine decoction pieces, comprising a fermentation tank, the fermentation tank comprising a tank body, an installation port being provided at the top of the tank body, a tank cover being installed at the installation port, the area of ​​the cross-section of the lower part of the inner cavity of the tank perpendicular to the vertical direction gradually decreasing from top to bottom, a discharge port being provided on the bottom side of the inner wall of the tank, and a discharge valve being installed on the discharge port.

[0006] The tank contains a vertically arranged tube, the bottom end of which is located above the tank outlet. A gap is provided between the bottom of the tube and the bottom side of the inner wall of the tank. A sealing sliding moving part is provided inside the tube. One end of the moving part is connected to a transmission part. The fermentation tank is equipped with a reciprocating drive mechanism that drives the moving part to move along the length of the tube through the transmission part.

[0007] The moving part has an opening at its top, and a switch that can be opened and closed and covers the opening is installed at the bottom of the moving part.

[0008] In this process, traditional Chinese medicine, water, and microbial inoculum are added to the fermentation tank. The water in the fermentation tank overflows the top of the pipe. The reciprocating drive mechanism drives the moving part to move back and forth along the length of the pipe through the transmission component. When the moving part moves downward, the switch component prevents water from flowing through the opening of the moving part. When the moving part moves upward, the switch component allows water to flow through the opening of the moving part.

[0009] As a preferred embodiment of the present invention, the transmission component is a transmission tube, an installation hole is provided in the middle of the can cover, a sealing component is installed in the installation hole, the bottom end of the transmission tube is fixedly connected to the top of the moving component, the top end of the transmission tube extends upward through the sealing component and extends above the sealing component, the transmission tube and the sealing component are slidably connected, and the reciprocating drive mechanism is installed on the top of the sealing component.

[0010] The top end of the transmission tube is connected to the outlet of the first one-way valve, and the bottom of the moving part is provided with a vent hole that connects to the inner cavity of the transmission tube.

[0011] As a preferred embodiment of the present invention, it further includes a connecting tube bag made of soft material, wherein the bottom of the sealing member is connected to one end of the connecting tube bag, and the other end of the connecting tube bag is connected to the outside of the transmission tube.

[0012] As a preferred embodiment of the present invention, an installation hole is provided in the middle of the can lid, a sealing member is installed in the installation hole, and a gas supply pipe that penetrates the sealing member from top to bottom is installed on the sealing member. The bottom end of the gas supply pipe is connected to the lower part of the inner cavity of the pipe body, and the top end of the gas supply pipe is connected to the outlet of the second one-way valve.

[0013] In a preferred embodiment of the present invention, the switching element is a magnetic plate, one end of which is rotatably connected to the bottom of the moving element, and the moving element is made of ferromagnetic material.

[0014] As a preferred embodiment of the present invention, the switching element is an elastic plate, and one end of the elastic plate is fixedly connected to the bottom of the moving element.

[0015] As a preferred embodiment of the present invention, a fixing member is fixed on the tube body, and the fixing member is higher than the moving member.

[0016] As a preferred embodiment of the present invention, a plurality of guide plates are fixed at equal angles at the bottom of the outer side of the tube body, and the angle between the guide plates and the length direction of the tube body is 50°-85°.

[0017] As a preferred embodiment of the present invention, an observation hole is provided on the outer side of the tank, and a transparent observation window is installed inside the observation hole.

[0018] As a preferred embodiment of the present invention, the ratio of the area of ​​the cross-section of the inner cavity of the tube parallel to the horizontal plane to the area of ​​the cross-section of the upper part of the inner cavity of the tank parallel to the horizontal plane is 1.0:5.0-30.0.

[0019] Compared with the prior art, the beneficial effects of the present invention are: 1. The fermentation device for Chinese herbal medicine slices of this invention includes a reciprocating drive mechanism that drives a moving component to reciprocate along the length of the tube via a transmission component. On one hand, this generates an upward-sloping pulsed water flow in the water within the inner cavity of the tank, causing the Chinese herbal medicine at the bottom of the inner wall of the tank to move upward with the pulsed water flow. This ensures full contact between the Chinese herbal medicine and the water, eliminating fermentation dead zones, maintaining the activity of the microorganisms, and accelerating the fermentation speed of the Chinese herbal medicine. On the other hand, water in the upper part of the inner cavity of the tube falls into the water in the lower part of the inner cavity of the tube through the opening and the air below the switch component. During the process of water falling into the air, it makes full contact with the air, achieving oxygenation of the water and generating bubbles in the water in the lower part of the inner cavity of the tube. These bubbles rise to the water surface and burst, thereby increasing the surface area of ​​the water and improving the oxygen dissolution efficiency in the water. Furthermore, the foam generated by the water falling into the lower part of the inner cavity of the tube through the air is confined within the inner cavity of the tube, preventing foam overflow and the growth of miscellaneous bacteria.

[0020] 2. The fermentation device for Chinese herbal medicine slices of the present invention, on the one hand, has a guide plate in contact with the bottom side of the inner wall of the tank to avoid contact between the bottom of the tube and the bottom side of the inner wall of the tank; on the other hand, the guide plate causes the pulsed water flow to push the water in the tank to rotate around the tube, and the Chinese herbal medicine in the water moves away from the tube under the action of centrifugal force, reducing the amount of Chinese herbal medicine entering the tube from the top of the tube, and reducing the risk of Chinese herbal medicine clogging the bottom of the tube and the bottom side of the inner wall of the tank.

[0021] 3. The fermentation device for Chinese herbal medicine slices in the example of the present invention uses a connecting tube bag to prevent air from flowing inside and outside the tank through the gap between the transmission pipe and the sealing component, thereby reducing the risk of contamination by miscellaneous bacteria during the fermentation process of Chinese herbal medicine. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 A partial sectional view of the structure; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B; Figure 5 This is a schematic diagram of the moving part structure of the present invention; Figure 6 This is a schematic diagram of the tube body and guide plate structure of the present invention; Figure 7 This is a schematic diagram of another embodiment of the present invention.

[0023] In the diagram: 1 Reciprocating drive mechanism, 2 Transmission component, 3 Fermentation tank, 301 Tank cover, 302 Tank body, 303 Discharge valve, 304 Sealing component, 4 Observation window, 5 Fixing component, 6 Moving component, 7 Opening, 8 Pipe body, 9 First check valve, 10 Connecting tube bag, 11 Guide plate, 12 Vent hole, 13 Switch component, 14 Second check valve, 15 Gas supply pipe. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figures 1-7 This embodiment discloses a fermentation device for traditional Chinese medicine decoction pieces, including a fermentation tank 3. The fermentation tank 3 includes a tank body 302. The top of the tank body 302 has an installation port, and a detachable tank cover 301 is installed on the installation port. The area of ​​the cross-section of the lower part of the inner cavity of the tank body 302 perpendicular to the vertical direction gradually decreases from top to bottom. The lowest point of the bottom side of the inner wall of the tank body 302 has a discharge port, and a discharge valve 303 is installed on the discharge port.

[0026] A vertically arranged tube 8 is provided in the middle of the inner cavity of the tank 302. The bottom end of the tube 8 is located above the discharge port of the tank 302, and there is a gap between the bottom of the tube 8 and the bottom side of the inner wall of the tank 302. A sealing sliding moving part 6 is provided inside the tube 8. One end of the moving part 6 is connected to the transmission part 2. A reciprocating drive mechanism 1 is installed on the fermentation tank 3, which drives the moving part 6 to move along the length direction of the tube 8 through the transmission part 2.

[0027] The top of the movable part 6 has an opening 7, and the bottom of the movable part 6 is equipped with a switch 13 that can be opened and closed and covers the opening 7.

[0028] Furthermore, the ratio of the area of ​​the cross-section of the inner cavity of the tube body 8 parallel to the horizontal plane to the area of ​​the upper part of the inner cavity of the tank body 302 parallel to the horizontal plane is 1.0:5.0-30.0.

[0029] Preferably, the movable part 6 is made of rubber or metal.

[0030] Preferably, the reciprocating drive mechanism is a cylinder, hydraulic cylinder, electric push rod, or motor crank-slider mechanism. The reciprocating drive mechanism used in this invention is a commonly used device in the prior art, and its working method and structure are well known technologies, so they will not be described in detail here.

[0031] The working process and principle of this embodiment are as follows: The staff added disinfected Chinese medicinal herbs and water into the fermentation tank 3. The water in the fermentation tank 3 overflowed the top of the pipe body 8. The staff added bacteria into the fermentation tank 3. The staff caused the reciprocating drive mechanism 1 to drive the moving part 6 to move back and forth along the length of the pipe body 8 through the transmission part 2.

[0032] During the downward movement of the moving part 6: the switch 13 prevents water from flowing through the opening 7 of the moving part 6. The switch 13 pushes the water below the switch 13 to spray out through the gap between the bottom of the pipe body 8 and the bottom side of the inner wall of the tank 302, causing the Chinese medicinal materials gathered at the bottom of the inner cavity of the tank 302 to turn upward with the water flow. The water above the pipe body 8 enters the upper part of the inner cavity of the pipe body 8 through the top of the pipe body 8.

[0033] During the upward movement of the moving part 6: the hydraulic pressure at the top of the switch part 13 is greater than the hydraulic pressure at the bottom of the switch part 13. The hydraulic pressure difference between the top and bottom of the switch part 13 causes the switch part 13 to open, and the water in the upper part of the inner cavity of the pipe body 8 flows to the lower part of the inner cavity of the pipe body 8 through the opening 7.

[0034] During the up-and-down movement of the moving part 6, an upward-sloping pulsed water flow is generated in the water inside the tank 302, causing the Chinese medicinal materials at the bottom of the inner wall of the tank 302 to move upward with the pulsed water flow. This ensures that the Chinese medicinal materials and water come into full contact, eliminates fermentation dead zones, guarantees the activity of the bacteria, and accelerates the fermentation speed of the Chinese medicinal materials.

[0035] Preferably, several guide plates 11 are fixed at equal angles on the bottom of the outer side of the tube body 8. The angle between the guide plates 11 and the length direction of the tube body 8 is 50°-85°, and the distance between two adjacent guide plates 11 is 0.5cm-3.0cm. On the one hand, the guide plates 11 contact the bottom side of the inner wall of the tank 302, avoiding contact between the bottom of the tube body 8 and the bottom side of the inner wall of the tank 302. On the other hand, the guide plates 11 cause the pulsed water flow to push the water in the tank 302 to rotate around the tube body 8. The Chinese medicinal materials in the water move away from the tube body 8 under the action of centrifugal force, reducing the amount of Chinese medicinal materials entering the tube body 8 from the top of the tube body 8, and reducing the risk of Chinese medicinal materials clogging the gap between the bottom of the tube body 8 and the bottom side of the inner wall of the tank 302.

[0036] Preferably, the tank body 302 is made of stainless steel or plastic, the outside of the tank body 302 is provided with a heat insulation covering layer, the tank body 302 is equipped with a temperature regulating component commonly used in the prior art, the discharge valve 303 is a ball valve or a butterfly valve, and a support frame is installed on the bottom side of the tank body 302.

[0037] Preferably, the bottom of the tube body 8 is fixed with several protrusions, or the outer side of the tube body 8 is provided with a limiting bracket. The protrusions or the limiting bracket create a gap between the bottom of the tube body 8 and the bottom side of the inner wall of the tank body 302, and the minimum distance of the gap is 0.2cm-1.0cm.

[0038] Preferably, the position of the tube body 8 remains unchanged during the upward movement of the moving part 6 by increasing the weight of the tube body 8, setting a counterweight on the tube body 8, fixing a limiting rod on the tube body 8 that is pressed against the tank cover 301, or installing a detachable connector between the tube body 8 and the inner wall of the tank 302.

[0039] Example 2: Figures 1-3 , Figure 5 As shown, this embodiment discloses a fermentation device for traditional Chinese medicine decoction pieces. Its structure is roughly the same as that of Embodiment 1. The difference is that in this embodiment, the transmission component 2 is a transmission tube. An installation hole is provided in the middle of the can cover 301. A sealing component 304 is installed in the installation hole. The bottom end of the transmission tube is fixedly connected to the top of the moving component 6. The top end of the transmission tube passes through the sealing component 304 and extends to the top of the sealing component 304. The transmission tube and the sealing component 304 are slidably connected. The reciprocating drive mechanism 1 is installed on the top of the sealing component 304. The reciprocating drive mechanism 1 can drive the transmission tube to move up and down.

[0040] The top end of the transmission tube is connected to the outlet of the first one-way valve 9, and the bottom of the moving part 6 is provided with a vent hole 12 that connects to the inner cavity of the transmission tube.

[0041] The working process and principle of this embodiment are as follows: The operator injects clean air into the lower part of the inner cavity of the pipe body 8 through an external compressed air tank or an external air pump via an external air filter, a first one-way valve 9, a transmission pipe, and a vent 12 of the moving part 6.

[0042] During the upward movement of the moving part 6: the hydraulic pressure at the top of the switch part 13 is greater than the air pressure at the bottom of the switch part 13. The pressure difference between the top and bottom of the switch part 13 causes the switch part 13 to open. The water in the upper part of the inner cavity of the pipe body 8 falls into the water in the lower part of the inner cavity of the pipe body 8 through the opening 7 and the air below the switch part 13. During the process of falling into the air, the water comes into full contact with the air, realizing the oxygenation of the water and generating bubbles in the water in the lower part of the inner cavity of the pipe body 8. The bubbles rise to the water surface and burst, thereby increasing the surface area of ​​the water and improving the dissolution efficiency of oxygen in the water.

[0043] In existing technologies, during the fermentation of Chinese medicinal materials, the greater the aeration rate, the more gas is introduced, and the easier it is to generate foam in the fermentation solution. The foam will overflow from the vent, sampling port, or mechanical shaft seal. The foam will form a humid and nutrient-rich environment on the top of the inner wall of the tank, which is very easy for bacteria to grow. In this fermentation device for Chinese medicinal materials, the water in the tube 8 falls into the water in the lower part of the inner cavity of the tube 8 through the air, and the foam generated is confined in the inner cavity of the tube 8, avoiding foam overflow and the growth of bacteria.

[0044] The sealing component 304 is detachably installed on the tank cover 301. When the pipe body 8 or the moving part 6 needs to be inspected, the staff can remove the sealing component 304 from the tank cover 301 to facilitate the inspection of the pipe body 8 or the moving part 6.

[0045] Preferably, the minimum height of the air inside the tube 8 and below the switch 13 is greater than 10.0 cm.

[0046] Preferably, a pressure gauge for measuring the gas pressure inside the tank 302 is installed on the can lid 301, and a manhole is provided on the can lid 301, with a removable cover installed on the manhole.

[0047] Preferably, the operator injects oxygen into the lower part of the inner cavity of the tube body 8 through the vent 12 of the first one-way valve 9, the transmission pipe, and the moving part 6 from the external oxygen compressor tank.

[0048] Preferably, the operator adjusts the upward movement speed of the moving part 6 or the force required to open the downward opening switch 13 to ensure that the switch 13 is opened during the upward movement of the moving part 6.

[0049] Example 3: Figure 2 and Figure 3 As shown, this embodiment discloses a fermentation device for traditional Chinese medicine decoction pieces. Its structure is roughly the same as that of Embodiment 2. The difference is that this embodiment also includes a soft material connecting tube bag 10. The bottom of the sealing member 304 is fixedly connected to one end of the connecting tube bag 10, and the other end of the connecting tube bag 10 is fixedly connected to the outside of the transmission tube.

[0050] Preferably, the connecting tube bag 10 is made of soft rubber, soft plastic or elastic rubber.

[0051] The working process and principle of this embodiment are as follows: The connecting bag 10 prevents air from flowing inside and outside the tank 302 through the gap between the transmission pipe and the sealing component 304.

[0052] Example 4: Figure 7As shown, this embodiment discloses a fermentation device for traditional Chinese medicine decoction pieces. Its structure is roughly the same as that of Embodiment 1. The difference is that in this embodiment, an installation hole is provided in the middle of the tank cover 301. A sealing member 304 is installed on the installation hole. A gas supply pipe 15 is installed on the sealing member 304, which runs through the sealing member 304 from top to bottom. The bottom end of the gas supply pipe 15 is connected to the lower part of the inner cavity of the pipe body 8, and the top end of the gas supply pipe 15 is connected to the outlet of the second one-way valve 14.

[0053] The working process and principle of this embodiment are as follows: The operator injects air into the lower part of the inner cavity of the pipe body 8 through an external compressed air tank or an external air pump via an external air filter, a second one-way valve 14, and an air supply pipe 15.

[0054] During the upward movement of the moving part 6: the hydraulic pressure at the top of the switch part 13 is greater than the air pressure at the bottom of the switch part 13. The pressure difference between the top and bottom of the switch part 13 causes the switch part 13 to open. The water in the upper part of the inner cavity of the pipe body 8 falls into the water in the lower part of the inner cavity of the pipe body 8 through the opening 7 and the air below the switch part 13. During the process of falling into the air, the water comes into full contact with the air, realizing the oxygenation of the water. It also causes bubbles to be generated in the water in the lower part of the inner cavity of the pipe body 8. The bubbles rise to the water surface and burst, increasing the water surface area and improving the oxygen dissolution efficiency.

[0055] In existing technologies, during the fermentation of Chinese medicinal materials, the greater the aeration rate, the more gas is introduced, and the easier it is to generate foam. The foam will overflow from the exhaust port, sampling port, or mechanical shaft seal. The foam will form a humid and nutrient-rich environment on the top of the inner wall of the tank, which is very easy for bacteria to grow. In this fermentation device for Chinese medicinal materials, the water falls into the water in the lower part of the inner cavity of the tube 8 through the air, and the foam generated is confined within the inner cavity of the tube 8, thus preventing foam overflow and the growth of bacteria.

[0056] Preferably, the minimum height of the air inside the tube 8 and below the switch 13 is greater than 10.0 cm.

[0057] Preferably, a pressure relief valve communicating with the inner cavity of the tank body 302 is installed on the tank cover 301, and a manhole is provided on the tank cover 301, with a detachable cover installed on the manhole.

[0058] Preferably, the operator injects oxygen into the lower part of the inner cavity of the pipe body 8 through the second one-way valve 14 and the gas delivery pipe 15 from the external oxygen compressor tank.

[0059] Example 5: Figure 2 , Figure 5 , Figure 7As shown, this embodiment discloses a fermentation device for traditional Chinese medicine decoction pieces. Its structure is roughly the same as that of any of the embodiments from embodiment one to embodiment four. The difference is that in this embodiment, the switch 13 is a magnetic plate, one end of the magnetic plate is rotatably connected to the bottom of the moving part 6, and the moving part 6 is made of ferromagnetic material.

[0060] The working process and principle of this embodiment are as follows: During the upward movement of the moving part 6, the opening 7 at the bottom of the moving part 6 is exposed, and the water in the upper part of the inner cavity of the pipe body 8 falls into the water in the lower part of the inner cavity of the pipe body 8 through the opening 7. When the moving part 6 stops moving and during the downward movement of the moving part 6, the magnetic plate is magnetically attracted to the bottom of the moving part 6, and the magnetic plate completely blocks the opening 7.

[0061] Example 6: Figure 2 , Figure 5 , Figure 7 As shown, this embodiment discloses a fermentation device for traditional Chinese medicine decoction pieces. Its structure is roughly the same as that of any of the embodiments from embodiment one to embodiment four. The difference is that the switch 13 in this embodiment is an elastic plate, and one end of the elastic plate is fixedly connected to the bottom of the moving part 6.

[0062] The working process and principle of this embodiment are as follows: During the upward movement of the moving part 6, the opening 7 at the bottom of the moving part 6 is exposed, and the water in the upper part of the inner cavity of the pipe body 8 falls into the water in the lower part of the inner cavity of the pipe body 8 through the opening 7. When the moving part 6 stops moving and during the downward movement of the moving part 6, the elastic plate is sealed and attached to the bottom of the moving part 6, and the elastic plate completely covers the opening 7.

[0063] Example 7: Figure 2 and Figure 7 As shown, this embodiment discloses a fermentation device for Chinese herbal medicine slices. Its structure is roughly the same as that of Embodiment 1. The difference is that in this embodiment, a fixing member 5 is fixed on the tube body 8, and the fixing member 5 is higher than the moving member 6. The fixing member 5 is a clamp, bolt or fixing plate.

[0064] The working process and principle of this embodiment are as follows: When it is necessary to discharge the Chinese medicinal materials and liquid in the tank 302, the operator causes the reciprocating drive mechanism 1 to drive the moving part 6 upward through the transmission component 2, and makes the moving part 6 contact the fixed part 5. Then, the operator causes the reciprocating drive mechanism 1 to drive the moving part 6, the fixed part 5 and the pipe 8 upward through the transmission component 2. The distance between the bottom end of the pipe 8 and the bottom side of the inner wall of the tank 302 increases, which makes it easier for the Chinese medicinal materials and liquid in the tank 302 to be discharged through the discharge port and the discharge valve 303.

[0065] Preferably, the operator increases the weight of the tube body 8 or sets a counterweight on the tube body 8 to keep the position of the tube body 8 unchanged during the upward movement of the moving part 6.

[0066] Example 8: As Figure 1 , Figure 2 , Figure 7 As shown, this embodiment discloses a fermentation device for Chinese herbal medicine slices. Its structure is roughly the same as that of Embodiment 1. The difference is that an observation hole is provided on the outside of the tank 302 in this embodiment, and a transparent observation window 4 is installed in the observation hole. The observation window 4 makes it convenient for staff to observe the fermentation of Chinese herbal medicine in the tank 302.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A fermentation device for traditional Chinese medicine decoction pieces, comprising a fermentation tank (3), characterized in that: The fermentation tank (3) includes a tank body (302), the top of the tank body (302) is provided with an installation port, a tank cover (301) is installed on the installation port, the area of ​​the cross-section of the lower part of the inner cavity of the tank body (302) perpendicular to the vertical direction gradually decreases from top to bottom, a discharge port is provided on the bottom side of the inner wall of the tank body (302), and a discharge valve (303) is installed on the discharge port. The tank (302) is provided with a vertically arranged tube (8), the bottom end of the tube (8) is located above the discharge port of the tank (302), and there is a gap between the bottom of the tube (8) and the bottom side of the inner wall of the tank (302). The tube (8) is provided with a sealed sliding moving part (6), and one end of the moving part (6) is connected to the transmission part (2). The fermentation tank (3) is equipped with a reciprocating drive mechanism (1) that drives the moving part (6) to move along the length direction of the tube (8) through the transmission part (2). The top of the movable part (6) is provided with an opening (7), and the bottom of the movable part (6) is provided with a switch (13) that can be opened and closed and covers the opening (7). In this process, Chinese medicine, water and bacteria are added to the fermentation tank (3). The water in the fermentation tank (3) overflows the top of the pipe body (8). The reciprocating drive mechanism (1) drives the moving part (6) to move back and forth along the length of the pipe body (8) through the transmission part (2). During the downward movement of the moving part (6), the switch part (13) prevents water from flowing through the opening (7) of the moving part (6). During the upward movement of the moving part (6), the switch part (13) allows water to flow through the opening (7) of the moving part (6). The transmission component (2) is a transmission tube. The can cover (301) has an installation hole in the middle. A sealing component (304) is installed in the installation hole. The bottom end of the transmission tube is fixedly connected to the top of the moving component (6). The top end of the transmission tube passes through the sealing component (304) and extends to the top of the sealing component (304). The transmission tube and the sealing component (304) are slidably connected. The reciprocating drive mechanism (1) is installed on the top of the sealing component (304). The top end of the transmission tube is connected to the outlet of the first one-way valve (9), and the bottom of the moving part (6) is provided with a vent hole (12) that connects to the inner cavity of the transmission tube. The sealing component (304) is equipped with an air supply pipe (15) that runs through the sealing component (304) from top to bottom. The bottom end of the air supply pipe (15) is connected to the lower part of the inner cavity of the pipe body (8), and the top end of the air supply pipe (15) is connected to the outlet of the second one-way valve (14). Several guide plates (11) are fixed at equal angles on the bottom of the outer side of the tube (8), and the angle between the guide plates (11) and the length direction of the tube (8) is 50°-85°.

2. The fermentation apparatus for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: It also includes a soft material connecting tube bag (10), the bottom of the sealing member (304) is connected to one end of the connecting tube bag (10), and the other end of the connecting tube bag (10) is connected to the outside of the transmission tube.

3. The fermentation apparatus for traditional Chinese medicine decoction pieces according to any one of claims 1-2, characterized in that: The switch (13) is a magnetic plate, one end of which is rotatably connected to the bottom of the moving part (6), which is made of ferromagnetic material.

4. The fermentation apparatus for traditional Chinese medicine decoction pieces according to claim 3, characterized in that: The switch (13) is an elastic plate, and one end of the elastic plate is fixedly connected to the bottom of the moving part (6).

5. The fermentation apparatus for prepared slices of traditional Chinese medicine according to claim 1, characterized in that: A fixing member (5) is fixed on the tube body (8), and the fixing member (5) is higher than the moving member (6).

6. The fermentation apparatus for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: An observation hole is provided on the outside of the tank (302), and a transparent observation window (4) is installed inside the observation hole.

7. The fermentation apparatus for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The ratio of the area of ​​the cross-section of the inner cavity of the tube (8) parallel to the horizontal plane to the area of ​​the cross-section of the upper part of the inner cavity of the tank (302) parallel to the horizontal plane is 1.0:5.0-30.0.

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