Tea fermentation device with ambient gas regulation assistance
By constructing a coordinated system of gas guide pipe, guide column and gas valve plate, combined with gas detector and heating wire, the problem of inaccurate gas concentration control in tea fermentation device was solved, and the uniformity and quality of tea fermentation were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-07
AI Technical Summary
Existing tea fermentation equipment cannot precisely control the concentration ratio of gases such as oxygen and carbon dioxide in the fermentation chamber, making it difficult to adapt to the dynamic changes in gas composition during tea fermentation, resulting in uneven fermentation.
By employing the synergistic effect of gas guide tubes, guide columns, spiral guide rods, and valve plates, combined with gas detectors and heating wires, a precise gas regulation system is constructed. The gas flow rate is controlled by the valve plates, and the tea leaves are turned over by stirring flaps and ventilated bearing plates to ensure uniform gas distribution and temperature control.
It achieves precise regulation of gas composition and stable temperature control during tea fermentation, ensuring uniform fermentation and improved tea quality.
Smart Images

Figure CN224461046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tea processing equipment, specifically a tea fermentation device equipped with environmental gas regulation assistance. Background Technology
[0002] In the tea processing industry, fermentation is a key process for forming the unique flavor, aroma and color of tea. As the core equipment for realizing this process, the performance of tea fermentation equipment directly affects the quality of tea. At present, common tea fermentation equipment usually includes a fermentation chamber, a temperature regulation component and a humidity control component. The fermentation chamber is used to hold the tea to be fermented. The temperature regulation component usually maintains a suitable temperature in the fermentation chamber through heating pipes or heat pump systems. The humidity control component usually uses a humidifier or spray device to regulate the humidity in the chamber to meet the basic requirements of temperature and humidity during the tea fermentation process.
[0003] However, the existing gas regulation structure is extremely simple. Most devices rely solely on natural ventilation or simple fans to achieve gas exchange, which is impossible to accurately control the concentration ratio of gases such as oxygen and carbon dioxide in the fermentation chamber. Moreover, the demand for gas components changes greatly at different stages during the tea fermentation process, and a single gas exchange structure is difficult to adapt to this dynamic change, which can easily lead to uneven fermentation. Utility Model Content
[0004] The purpose of this invention is to provide a tea fermentation device with environmental gas regulation assistance, in order to solve the problem mentioned in the background art that the gas regulation structure of existing equipment is extremely simple. Most devices rely solely on natural ventilation or simple fans to achieve gas exchange, which is unable to accurately control the concentration ratio of gases such as oxygen and carbon dioxide in the fermentation chamber. Furthermore, during the tea fermentation process, the demand for gas components changes greatly at different stages, and a single gas exchange structure is difficult to adapt to this dynamic change, which easily leads to uneven fermentation.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a tea fermentation device with environmental gas regulation assistance, comprising an outer cylinder, which is the outer shell of the device and has a sealed cylindrical structure, an inner fermentation cylinder nested inside the outer cylinder, and a top cover covering the top of the inner fermentation cylinder, the outer cylinder, the inner fermentation cylinder and the top cover together forming a tea fermentation chamber;
[0006] A gas guide pipe is axially installed on the inner wall of the outer cylinder, and the outer wall of the gas guide pipe is sleeved with the guide column. The guide column is set inside the fermentation inner cylinder, and a hole aligned with the vent is opened inside the guide column. The vent is opened around the surface of the gas guide pipe, and a spiral guide rod is set inside the gas guide pipe. A valve plate connected to the gas pipeline is provided at the bottom end of the gas guide pipe.
[0007] A heating wire is embedded in the inner wall of the outer cylinder and surrounds the outer wall of the fermentation inner cylinder. The controller of the heating wire is installed on the inner wall of the outer cylinder. The top cover is penetrated by the output shaft of the drive motor, and the output shaft of the drive motor is connected to the connecting frame. The connecting frame is installed with two rotating rings, and stirring flaps are installed at equal intervals on the side wall of the rotating rings.
[0008] Using the above technical solution, the outer cylinder, the inner fermentation cylinder, and the top cover form a sealed fermentation chamber. With the help of gas guide pipes, guide columns, and other structures, precise gas regulation is achieved. The heating wire provides a suitable temperature, and the drive motor drives the stirring and turning plate to turn the tea leaves.
[0009] Preferably, the bottom end of the outer cylinder has a fixed support foot, and the height of the support foot of the outer cylinder is higher than the bottom end of the valve pipe outlet in the valve plate.
[0010] By adopting the above technical solution, the height of the fixed support foot at the bottom of the outer cylinder is higher than the outlet of the valve pipe of the gas valve plate, which avoids damage to the pipeline due to pressure, ensures stable gas delivery, and enhances the safety of the device.
[0011] Preferably, a gas detector is fixedly installed at the top of the top cover, and the probe of the gas detector extends into the fermentation inner cylinder.
[0012] Using the above technical solution, the gas detector probe of the top cover extends into the fermentation inner cylinder, which can monitor the gas composition in real time, provide a basis for gas regulation, ensure that the fermentation environment meets the requirements, and improve the accuracy of gas regulation.
[0013] Preferably, the connecting frame is composed of a frustum frame and a steel rod, and the frustum frame of the connecting frame is rotatably connected to the top of the guide column, and the steel rod of the connecting frame passes through two rotating rings and a breathable bearing plate.
[0014] By adopting the above technical solution, the special structure of the connecting frame enables rotational connection with the guide column and drives the rotating ring to operate, ensuring stable power transmission. At the same time, it allows the breathable bearing plate to be placed stably, ensuring the coordination between tea leaf turning and bearing.
[0015] Preferably, the agitating flap is a double-layered rotating sleeve, and the outer sleeve of the agitating flap has a comb-like structure at equal intervals.
[0016] By adopting the above technical solution, the double-layer rotating sleeve and outer comb-like structure of the stirring and turning plate can more finely turn the tea leaves, enhance the contact between the tea leaves and the gas, and further improve the uniformity of fermentation.
[0017] Preferably, the breathable bearing plate is located between the two rotating rings, and the breathable bearing plate is a bearing whose inner ring is nested and connected to the steel rod of the connecting frame.
[0018] Using the above technical solution, the inner ring bearing of the ventilated bearing plate is connected to the steel rod of the connecting frame, so that it remains stable when the connecting frame rotates, ensuring that the tea leaves are placed stably, preventing them from spilling when turned over, and ensuring that fermentation proceeds smoothly.
[0019] Preferably, the valve plate consists of four valve pipes and a sealing plate, and the sealing plate of the valve plate is sealed to the bottom opening of the gas guide pipe.
[0020] Using the above technical solution, the four gas valve pipes of the gas valve plate can be connected to different gas sources, and the sealing plate ensures a seal, realizing the precise input and control of various gases and meeting the gas requirements of different stages of fermentation.
[0021] Compared with the prior art, the beneficial effects of this utility model are: the tea fermentation device equipped with environmental gas regulation assistance:
[0022] 1. The device constructs a gas regulation structure through the synergistic action of a gas guide pipe, a guide column, a spiral guide rod, and a valve plate. Gas adapted to fermentation enters the gas guide pipe through the valve pipe of the valve plate, spirals upward under the guidance of the spiral guide rod, and then enters the fermentation inner cylinder through the vent holes on the surface of the gas guide pipe aligned with the holes of the guide column. The valve of the valve plate can precisely control the gas flow rate. With the help of a gas detector to monitor the gas composition in the fermentation inner cylinder in real time, it can dynamically adjust according to the gas requirements of different stages of tea fermentation.
[0023] 2. Furthermore, the connecting frame drives the two rotating rings to rotate, causing the agitating flaps on the side walls of the rotating rings to turn and rake the tea leaves at the bottom of the fermentation inner cylinder and on the aeration support plate. The double-layer rotating sleeve design of the agitating flaps and the comb-like structure of the outer sleeve can more meticulously turn the tea leaves, breaking up the dense state of the tea leaf accumulation. At the same time, the stable setting of the aeration support plate ensures that the tea leaves are not easily spilled during turning, allowing each layer of tea leaves to fully contact the regulated gas.
[0024] 3. Heating wires are placed around the inner wall of the outer cylinder to precisely control the fermentation temperature. This works in conjunction with precise gas regulation. The sealed fermentation chamber reduces external environmental interference, allowing the tea to ferment in a stable temperature, humidity, and gas environment. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the overall internal side section of the present invention.
[0028] Figure 4This is a side-sectional three-dimensional structural diagram of the outer cylinder and the fermentation inner cylinder of this utility model;
[0029] Figure 5 This is a three-dimensional structural diagram of the outer cylinder and guide column of this utility model.
[0030] Figure 6 This is a schematic diagram of the mounting structure of the connecting frame and the two-layer rotating ring of this utility model.
[0031] In the diagram: 1. Outer cylinder; 2. Fermentation inner cylinder; 3. Top cover; 4. Gas detector; 5. Drive motor; 6. Connecting frame; 7. Rotating ring; 8. Stirring flap; 9. Aeration bearing plate; 10. Guide column; 11. Gas guide pipe; 12. Spiral guide rod; 13. Ventilation hole; 14. Gas valve plate; 15. Heating wire. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-6 This utility model provides a technical solution: a tea fermentation device with environmental gas regulation assistance, including an outer cylinder 1, an inner fermentation cylinder 2, a top cover 3, a gas detector 4, a drive motor 5, a connecting frame 6, a rotating ring 7, a stirring flap 8, a breathable bearing plate 9, a guide column 10, a gas guide pipe 11, a spiral guide rod 12, a vent hole 13, a valve plate 14, and a heating wire 15;
[0034] Among them, the outer cylinder 1 is the outer shell of the device, which is a sealed cylindrical structure. The fermentation inner cylinder 2 is nested inside the outer cylinder 1, and the top of the fermentation inner cylinder 2 is covered with a top cover 3. The outer cylinder 1, the fermentation inner cylinder 2 and the top cover 3 together constitute the tea fermentation chamber.
[0035] The outer cylinder 1 has a fixed support foot at the bottom, and the height of the support foot of the outer cylinder 1 is higher than the bottom end of the valve pipe outlet in the valve plate 14. A gas guide pipe 11 is axially installed on the inner wall of the outer cylinder 1, and the outer wall surface of the gas guide pipe 11 is sleeved with the guide column 10. The guide column 10 is set in the fermentation inner cylinder 2, and a hole aligned with the vent hole 13 is opened in the guide column 10. The vent hole 13 is opened around the surface of the gas guide pipe 11, and a spiral guide rod 12 is set in the gas guide pipe 11. The bottom end of the gas guide pipe 11 is provided with a valve plate 14 that connects to the gas pipe. The valve plate 14 is composed of 4 valve pipes and a sealing plate, and the sealing plate of the valve plate 14 is sealed with the bottom opening of the gas guide pipe 11.
[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the fixed support at the bottom of the outer cylinder 1 provides stable support, and the height of the support is higher than the bottom of the gas valve pipe outlet of the gas valve plate 14 to avoid pressure on the pipe outlet. The spiral guide rod 12 is installed inside the gas guide pipe 11, and the gas valve plate 14 is installed at its bottom. At the same time, the gas valve pipe of the gas valve plate 14 is connected to the external gas delivery pipes such as carbon dioxide and oxygen. The fermentation inner cylinder 2 is nested inside the outer cylinder 1. The heating wire 15 on the inner wall of the outer cylinder 1 is wrapped around the outer wall of the fermentation inner cylinder 2, and the controller of the heating wire 15 is installed on the outer wall of the outer cylinder 1. The guide column 10 is inserted into the outer cylinder 1 along with the fermentation inner cylinder 2, so that it is fitted with the gas guide pipe 11 installed axially on the inner wall of the outer cylinder 1, ensuring that the hole in the guide column 10 is aligned with the vent hole 13 on the surface of the gas guide pipe 11.
[0037] In use, according to the fermentation requirements of tea, the opening and closing of the valve on the gas valve plate 14 allows gases such as carbon dioxide and oxygen to enter the gas guide pipe 11 through the gas valve pipe. The valve can simultaneously control the on / off state and flow rate of the gas. Under the guidance of the spiral guide rod 12 in the gas guide pipe 11, the gas spirals upward and enters the fermentation inner cylinder 2 through the air vent 13 and the aligned holes in the guide column 10, thereby replenishing and regulating the gas in the fermentation chamber. The gas detector 4 monitors the gas composition in the chamber in real time and adjusts the gas input through the gas valve plate 14 according to the monitoring results. The controller of the heating wire 15 on the inner wall of the outer cylinder 1 controls the operation of the heating wire 15 to provide a suitable fermentation temperature for the tea in the fermentation inner cylinder 2 by heat conduction.
[0038] Heating wire 15 is embedded in the inner wall of the outer cylinder 1 and surrounds the outer wall of the fermentation inner cylinder 2. The controller of heating wire 15 is installed on the inner wall of the outer cylinder 1. The top cover 3 is penetrated by the output shaft of the drive motor 5 and the output shaft of the drive motor 5 is connected to the connecting frame 6. A gas detector 4 is fixedly installed at the top of the top cover 3 and the probe of the gas detector 4 extends into the fermentation inner cylinder 2. The connecting frame 6 is installed with two layers of rotating rings 7 and stirring flaps 8 are installed at equal intervals on the side wall of the rotating rings 7. The connecting frame 6 is composed of a frustum frame and a steel rod. The frustum frame of the connecting frame 6 is rotatably connected to the top of the guide column 10. The steel rod of the connecting frame 6 passes through the two layers of rotating rings 7 and the ventilated bearing plate 9. The ventilated bearing plate 9 is between the two layers of rotating rings 7 and is a bearing that is nested in the inner ring and connected to the steel rod of the connecting frame 6. The stirring flap 8 is a double-layer rotating sleeve rod and the outer sleeve rod of the stirring flap 8 has a comb-like structure at equal intervals.
[0039] Referring to the attached diagrams in the instruction manual Figures 1-6As shown, the inner fermentation cylinder 2 is nested inside the outer cylinder 1, ensuring their positions correspond. The ventilated support plate 9 is placed inside the inner fermentation cylinder 2, positioned between the two rotating rings 7. The bearing nested within the inner ring of the ventilated support plate 9 is connected to the steel rod of the connecting frame 6, so that the outer wall of the ventilated support plate 9 abuts against the inner fermentation cylinder 2. Then, the connecting frame 6 is installed with the two rotating rings 7, ensuring the two rotating rings 7 are installed vertically. Figures 2-3 As shown, the connecting frame 6 is then connected to the output shaft of the drive motor 5. The drive motor 5 is then installed on the top cover 3, so that the output shaft passes through the top cover 3. The gas detector 4 is fixedly installed at the top of the top cover 3, and its probe is inserted into the fermentation inner cylinder 2. Finally, the top cover 3 is closed on the top of the fermentation inner cylinder 2 to complete the overall installation of the device.
[0040] In use, open the top cover 3 and place the tea leaves to be fermented on the bottom layer of the fermentation inner cylinder 2 and on the ventilated support plate 9, forming two layers of tea leaves. Then close the top cover 3 to ensure the fermentation chamber is sealed. With the injection and release of gas, and in conjunction with the appropriate temperature for tea fermentation, fermentation will continue for a period of time. Then start the drive motor 5, whose output shaft will drive the connecting frame 6 to rotate. The connecting frame 6 will then drive the two rotating rings 7 to rotate. The stirring flaps 8 on the rotating rings 7 will rotate accordingly, turning and ruffling the tea leaves at the bottom of the fermentation inner cylinder 2 and on the ventilated support plate 9, so that the tea leaves can fully contact the gas in the chamber and ensure uniform fermentation. During this process, the ventilated support plate 9 remains stable and does not rotate because it is against the fermentation inner cylinder 2 and the inner ring bearing is engaged with the steel rod of the connecting frame 6, ensuring that the tea leaves are placed stably.
[0041] Working principle: When using this tea fermentation device with environmental gas regulation assistance, the tea to be fermented is placed on the bottom layer of the fermentation inner cylinder 2 and on the breathable support plate 9, so that the tea is divided into two layers and fermented simultaneously. During the fermentation, gases such as carbon dioxide and oxygen that need to be regulated are connected to the gas valve pipe of the gas valve plate 14 through the pipe. By controlling the opening and closing of the gas valve, the gas enters the gas guide pipe 11. The valve of the gas valve plate 14 can control the opening and closing and flow of the gas. The gas entering the gas guide pipe 11 is spirally rising under the guidance of the spiral guide rod 12, and then flows out through the vent holes 13 on the surface of the gas guide pipe 11.
[0042] Since the holes in the guide column 10 are aligned with the vent holes 13, the gas enters the fermentation inner cylinder 2 through these holes, thereby replenishing and regulating the gas in the fermentation chamber. The probe of the gas detector 4 extends into the fermentation inner cylinder 2 to monitor the gas composition in the chamber in real time, so as to adjust the gas input through the gas valve plate 14 according to the monitoring results.
[0043] Fermentation heat is provided by heating wires 15 embedded in the inner wall of the outer cylinder 1. The controller of the heating wires 15 controls their working status. The appropriate temperature is provided for the tea fermentation in the inner fermentation cylinder 2 through heat conduction. After fermentation for a period of time, the drive motor 5 is started. Its output shaft drives the connecting frame 6 to rotate. The connecting frame 6 then drives the two rotating rings 7 installed with it to rotate. The stirring flap 8 rotates together with the installed rotating rings 7. The two rotating rings 7 respectively turn and rake the tea leaves at the bottom of the inner fermentation cylinder 2 and the tea leaves on the ventilated bearing plate 9, so that the tea leaves can fully contact the gas in the fermentation chamber and ensure uniform fermentation. The inner ring of the ventilated bearing plate 9 is nested with a bearing connected to the steel rod of the connecting frame 6. When the connecting frame 6 rotates, the outer wall of the ventilated bearing plate 9 is in contact with the inner fermentation cylinder 2 and remains stable, and does not rotate with the connecting frame 6, ensuring that the tea leaves are placed stably and increasing the overall practicality.
[0044] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tea fermentation device equipped with environmental gas conditioning assistance, comprising: The outer cylinder (1) is the outer shell of the device and has a sealed cylindrical structure. The fermentation inner cylinder (2) is nested inside the outer cylinder (1), and the top of the fermentation inner cylinder (2) is covered with a top cover (3). The outer cylinder (1), the fermentation inner cylinder (2) and the top cover (3) together constitute the tea fermentation chamber. The features are as follows: a gas guide pipe (11) is axially installed on the inner wall of the outer cylinder (1), and the outer wall of the gas guide pipe (11) is sleeved with the guide column (10). The guide column (10) is set in the fermentation inner cylinder (2), and a hole aligned with the vent hole (13) is opened in the guide column (10). The vent hole (13) is opened around the surface of the gas guide pipe (11), and a spiral guide rod (12) is set in the gas guide pipe (11). A gas valve plate (14) connecting the gas pipeline is provided at the bottom end of the gas guide pipe (11). Heating wires (15) are embedded in the inner wall of the outer cylinder (1) and the heating wires (15) are wrapped around the outer wall of the fermentation inner cylinder (2). The controller of the heating wires (15) is installed on the inner wall of the outer cylinder (1). The top cover (3) is penetrated by the output shaft of the drive motor (5) and the output shaft of the drive motor (5) is connected to the connecting frame (6). The connecting frame (6) is installed with two rotating rings (7) and stirring flaps (8) are installed at equal intervals on the side wall of the rotating rings (7).
2. The tea fermentation device with environmental gas regulation assistance according to claim 1, characterized in that: The outer cylinder (1) has a fixed support foot at the bottom, and the height of the support foot of the outer cylinder (1) is higher than the bottom end of the valve pipe outlet in the valve plate (14).
3. The tea fermentation device with environmental gas regulation assistance according to claim 1, characterized in that: A gas detector (4) is fixedly installed at the top of the top cover (3), and the probe of the gas detector (4) extends into the fermentation inner cylinder (2).
4. A tea fermentation device with environmental gas regulation assistance according to claim 1, characterized in that: The connecting frame (6) is composed of a frustum frame and a steel rod. The frustum frame of the connecting frame (6) is rotatably connected to the top of the guide column (10). The steel rod of the connecting frame (6) passes through two rotating rings (7) and a breathable bearing plate (9).
5. A tea fermentation device with environmental gas regulation assistance according to claim 1, characterized in that: The stirring flap (8) is a double-layer rotating sleeve, and the outer sleeve of the stirring flap (8) has a comb-like structure at equal intervals.
6. A tea fermentation device with environmental gas regulation assistance according to claim 4, characterized in that: The breathable bearing plate (9) is located between two rotating rings (7), and the breathable bearing plate (9) is a bearing that is nested in the inner ring and connected to the steel rod of the connecting frame (6).
7. A tea fermentation device with environmental gas regulation assistance according to claim 1, characterized in that: The valve plate (14) consists of four valve pipes and a sealing plate, and the sealing plate of the valve plate (14) is sealed to the bottom opening of the gas guide pipe (11).