Tea leaf segmented moisture control fermentation device

Abstract

The present application relates to the technical field of tea fermentation processing, in particular to a sectional type humidity control fermentation device for tea. The device comprises a device body, fermentation trays, a humidification mechanism, a disturbance assembly and a distribution mechanism. When the tea fermentation is in the early stage, the disturbance assembly drives the distribution mechanism to move to the first position, and all the atomizing spray nozzles are opened to realize high-humidity fermentation. When the fermentation enters the middle stage, the disturbance assembly drives the distribution mechanism to move to the second position at the first rotation amplitude, and some of the atomizing spray nozzles are closed to maintain stable humidity. When the fermentation enters the later stage, the disturbance assembly drives the distribution mechanism to move to the third position at the second rotation amplitude greater than the first rotation amplitude, and all the atomizing spray nozzles are closed to reduce humidity and promote fermentation setting.

Description

Technical Field

[0001] This invention relates to the field of tea fermentation and processing technology, and more specifically, to a segmented humidity-controlled fermentation device for tea. Background Technology

[0002] Tea fermentation is the core process that determines the quality of tea. Its essence is to change the chemical composition, color, aroma and taste of tea through microbial activity and enzymatic reactions (especially polyphenol oxidation), thus forming the unique quality characteristics of various teas.

[0003] In the tea fermentation process, humidity is one of the key parameters that regulates the enzymatic reaction process and affects the formation of tea quality. The humidity requirements of different fermentation stages are different: in the early stage of fermentation, a high humidity environment needs to be maintained to start microbial activity and polyphenol oxidation reaction, laying the foundation for the fermentation process; in the middle stage, a stable humidity range is needed to ensure that the fermentation process is uniform and stable, and to ensure that the tea components are transformed in a consistent manner; in the later stage, the humidity needs to be gradually reduced to promote fermentation and avoid over-fermentation due to excessive humidity.

[0004] To achieve large-scale and standardized tea fermentation, current tea processing generally uses tea fermentation machines. These machines typically have an external shell and an internal fermentation chamber, and the internal environment of the fermentation chamber is regulated through an overall temperature and humidity control system. However, the overall constant humidity control mode usually only sets a single fixed humidity value, which can easily lead to over- or under-adjustment of humidity during tea fermentation, causing continuous humidity fluctuations and thus interfering with the rhythm of microbial activity and enzymatic reactions during tea fermentation. Therefore, there is an urgent need for a segmented humidity-controlled fermentation device for tea to solve the above problems. Summary of the Invention

[0005] This invention provides a segmented humidity-controlled fermentation device for tea. By rotating a disturbance component at different amplitudes during different fermentation stages, the distribution mechanism is synchronously driven and moves along the inner wall of the fermentation chamber. The number of open and closed humidification ports of the humidification mechanism is changed in the early, middle, and late stages of tea fermentation, creating a continuous gradient humidity environment within the fermentation chamber: high humidity in the early stage, stable humidity in the middle stage, and decreased humidity in the late stage. This solves the problems mentioned in the background art, namely:

[0006] Existing tea fermentation machines typically use an overall constant humidity control mode. A single fixed humidity value can easily cause humidity fluctuations, interfering with the activity of microorganisms and the rhythm of enzymatic reactions during the fermentation process.

[0007] To achieve the above objectives, the segmented humidity-controlled fermentation device for tea includes a device body, which includes a box. The box has a fermentation chamber inside, and the fermentation chamber is equipped with multiple built-in stretching frames. Each built-in stretching frame is equipped with a fermentation tray, and each fermentation tray has a fermentation chamber for holding tea leaves and fermenting them.

[0008] The fermentation chamber is equipped with a humidification mechanism on its inner wall. The humidification mechanism has multiple atomizing spray nozzles for providing a humidification medium into the fermentation chamber.

[0009] The bottom of the inner cavity of the fermentation chamber is rotatably provided with a disturbance component. The disturbance component mechanically disturbs the tea leaves with different rotation amplitudes at different stages of tea fermentation. A distribution mechanism is movably provided on the inner wall of the fermentation chamber. The distribution mechanism is in transmission cooperation with the disturbance component.

[0010] When tea fermentation is in the early stage, the disturbance component drives the distribution mechanism to move to the first position, so that all the atomizing spray nozzles are opened to achieve high-humidity fermentation. When fermentation enters the middle stage, the disturbance component drives the distribution mechanism to move to the second position with a first rotation amplitude, so that the atomizing spray nozzles are partially closed to maintain stable humidity. When fermentation enters the later stage, the disturbance component drives the distribution mechanism to move to the third position with a second rotation amplitude greater than the first rotation amplitude, so that the atomizing spray nozzles are closed to reduce humidity and promote fermentation and shaping.

[0011] The above technical solution adopts a segmented humidity control structure in which the disturbance component rotates with varying amplitude during the fermentation stage and is linked to the distribution mechanism to open and close the atomizing spray nozzles in stages. This structure can automatically adapt to the differentiated humidity requirements before, during and after tea fermentation, replacing the traditional overall constant humidity control mode. It achieves dynamic gradient adjustment of humidity, effectively improving the accuracy of humidity control and the uniformity of fermentation.

[0012] Based on this, the humidification mechanism includes a humidification channel opened inside the inner wall of the fermentation chamber, and multiple connecting pipes are installed inside the humidification channel. The atomizing spray nozzle is opened on the inner wall of the fermentation chamber, and each atomizing spray nozzle is connected to the corresponding connecting pipe.

[0013] The atomizing spray nozzle includes two sets of basic humidification nozzles and two sets of adjustable humidification nozzles. The basic humidification nozzles are located on the inner wall of the fermentation chamber near the edge of the area and are used to provide basic humidity during the fermentation process. The adjustable humidification nozzles are located in the middle of the inner wall of the fermentation chamber and are used to adjust the humidity in stages during the fermentation process.

[0014] The system consists of two sets of basic humidification ports and two sets of adjustable humidification ports, which work together to meet the humidity control needs at different stages of tea fermentation, achieving graded control and gradient output of atomized humidification. In the early stage of fermentation, all humidification ports are opened simultaneously to provide a high-humidity environment in the fermentation chamber to initiate enzymatic reactions and microbial activities. In the middle stage, only the basic humidification ports are kept open while the adjustable humidification ports are closed to maintain a stable and uniform humidity range. In the later stage, the basic humidification ports and the adjustable humidification ports are closed in stages to gradually reduce the humidity in the chamber and promote fermentation and shaping.

[0015] In another technical solution, the disturbance component includes a disturbance shaft installed at the center of the bottom of the fermentation chamber. The surface of the disturbance shaft is evenly provided with four disturbance leaves, and the four disturbance leaves are respectively located in the first region, the second region, the third region and the fourth region, for turning over the tea leaves in their respective regions when rotating.

[0016] The disturbance shaft is internally equipped with a driving component for driving the disturbance shaft to rotate the disturbance blades in both forward and reverse directions at different amplitudes; each of the four disturbance blades has a toggle component fixedly installed at the end furthest from the disturbance shaft.

[0017] This technical solution utilizes a disturbance shaft located at the center of the bottom of the fermentation chamber, along with four disturbance leaves arranged in corresponding zones, to achieve synchronous turning of the tea leaves in the first to fourth zones. A drive mechanism drives the disturbance shaft to rotate the disturbance leaves in different directions, precisely adapting to the turning requirements of each stage of tea fermentation. Small, intermittent rotations in the middle stage provide gentle, non-continuous turning, ensuring uniform and stable fermentation, while large rotations in the later stage meet the turning requirements for tea fermentation and shaping. Simultaneously, the actuating components at the ends of the disturbance leaves synchronously drive the rails to move according to the rotation amplitude, achieving graded blocking of different atomizing spray nozzles and creating a coordinated control mechanism with the humidification system.

[0018] In addition, the distribution mechanism includes a rail fixedly installed on the upper end of the inner wall of the fermentation chamber, and a limit strip is fitted at the bottom of the inner wall of the fermentation chamber. The rail, the inner wall of the fermentation chamber and the limit strip together constitute a shielding chamber.

[0019] The distribution mechanism also includes a fixed plate fixedly connected inside the shielding chamber. The shielding chamber is provided with two first nozzle plugs, and the two first nozzle plugs are located on both sides of the fixed plate.

[0020] The distribution mechanism further includes two second nozzle plugs, which are respectively located between the two first nozzle plugs and the fixed plate.

[0021] The first nozzle plug and the second nozzle plug are connected by a first folding link, and the second nozzle plug is connected to the fixed plate by a second folding link;

[0022] Both of the first nozzle plugs are equipped with a lever on the side near the center of the fermentation chamber.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. In this segmented humidity-controlled fermentation device for tea, the environmental parameters inside the fermentation chamber are detected in real time through a sensor structure to identify the fermentation stage of the tea. The device then drives the disturbance component to perform differentiated mechanical disturbance on the tea at a preset amplitude. The disturbance action is only activated when switching between the pre-fermentation, middle-fermentation and late-fermentation stages. This staged turning of the tea during fermentation reduces damage to the tea caused by continuous turning and makes the fermentation more uniform, maintaining the stability of the fermentation microenvironment.

[0025] 2. In this segmented humidity-controlled fermentation device for tea, the perturbation component rotates at different amplitudes in conjunction with the distribution mechanism. Specifically, the perturbation action drives the distribution mechanism to cover the atomizing spray nozzles in stages, thereby achieving continuous gradient humidity control of high humidity in the early stage of tea fermentation, stable humidity in the middle stage, and reduced humidity in the later stage, thus improving the consistency of the fermentation process.

[0026] 3. In this segmented humidity-controlled fermentation device for tea, the different blocking positions of the first and second nozzle plugs in the distribution mechanism correspond to the different processes of the early, middle and late stages of fermentation. During this process, the fermentation stage can be intuitively judged without manually turning the tea leaves, reducing the disruption of the fermentation microenvironment balance caused by manual observation and improving the convenience and accuracy of fermentation control. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the fermentation tray in this invention;

[0029] Figure 3 This is a schematic diagram showing the positional structure of the disturbance component and the distribution component in this invention;

[0030] Figure 4 This is a schematic diagram of the partitioned structure of the fermentation chamber in this invention;

[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of the fermentation tray in this invention;

[0032] Figure 6 This is a schematic diagram of the contact structure between the actuating component and the actuating piece in this invention;

[0033] Figure 7 This is a schematic diagram of a side section of the fermentation tray in this invention;

[0034] Figure 8This is a schematic diagram of the rotation amplitude of the disturbance component matching the first position in this invention;

[0035] Figure 9 This is a schematic diagram showing the rotation amplitude of the disturbance component matching the second position in this invention;

[0036] Figure 10 This is a schematic diagram showing the rotation amplitude of the disturbance component matching the third position in this invention;

[0037] Figure 11 This is a schematic diagram of the rotation structure of the disturbance component in this invention.

[0038] The meanings of the labels in the diagram are as follows:

[0039] 1. Device body; 11. Box; 12. Fermentation chamber; 13. Fermentation tray; 131. Fermentation hopper; 14. Built-in stretching frame; 100. First zone; 200. Second zone; 300. Third zone; 400. Fourth zone;

[0040] 2. Humidification mechanism; 21. Humidification channel; 22. Atomizing spray nozzle; 23. Basic humidification port; 24. Adjustable humidification port; 25. Connecting pipeline;

[0041] 3. Disturbance assembly; 31. Disturbance shaft; 32. Disturbance blade; 33. Actuating component;

[0042] 4. Distribution mechanism; 41. Fixed plate; 42. First nozzle plug; 421. Paddle; 43. First folding link; 44. Second nozzle plug; 45. Second folding link; 46. Rail; 47. Limiting bar; 48. Shielding compartment; 49. Elastic cover;

[0043] 5. Sensing structure. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] In the existing technology, in order to achieve large-scale and standardized tea fermentation, tea fermentation processing generally uses a fermentation machine equipped with a shell and fermentation chamber, which relies on an overall temperature and humidity control system to regulate the environment. However, the fermentation machine usually adopts an overall constant humidity control mode (such as setting only a single fixed humidity value). In this mode, the fermented tea is prone to over- or under-adjustment of humidity, causing continuous humidity fluctuations, which in turn interferes with the activity of microorganisms and the rhythm of enzymatic reactions during the fermentation process.

[0046] In view of this, the present invention provides a segmented humidity-controlled fermentation device for tea, see reference. Figures 1-3 As shown, the device includes a main body 1, which includes a box 11. A fermentation chamber 12 is formed inside the box 11. Multiple built-in stretching frames 14 are provided in the fermentation chamber 12. Each built-in stretching frame 14 is equipped with a fermentation tray 13, which improves the space utilization of the fermentation chamber 12 and facilitates the removal, placement and maintenance of a single fermentation tray 13, reducing mutual interference between multiple tea fermentation trays.

[0047] Each fermentation tray 13 has a fermentation chamber 131 for holding tea leaves and fermenting them. The inner wall of the fermentation chamber 131 is equipped with a humidification mechanism 2. The humidification mechanism 2 has multiple atomizing spray nozzles 22 for providing a humidification medium to the fermentation chamber 131, which can achieve uniform atomized humidification.

[0048] The bottom of the inner cavity of the fermentation chamber 131 is rotatably equipped with a disturbance component 3. The disturbance component 3 mechanically disturbs the tea leaves at different stages of tea fermentation with different rotation amplitudes, reducing local fermentation delays or over-fermentation caused by tea leaf accumulation. It can also reduce mechanical damage to the tea leaves through non-continuous, multi-amplitude gentle disturbances, adapting to different turning needs of tea fermentation in the early stage of initiation, the middle stage of steady progress, and the later stage of shaping.

[0049] A distribution mechanism 4 is movably installed on the inner wall of the fermentation chamber 131. The distribution mechanism 4 is driven by the disturbance component 3 and can be synchronously adjusted to achieve graded blocking of the atomizing spray nozzle 22 to match the gradient requirements of high humidity in the early stage, stable humidity in the middle stage, and dehumidification in the later stage.

[0050] Fermentation chamber 131 is divided into four areas: Area 100, Area 200, Area 300, and Area 400 (e.g., ...). Figure 4 (The X1-X2 and Y1-Y2 lines are used as examples to divide the area). The humidification mechanism 2 is set up in four groups, which are installed in these four areas respectively to provide the humidification medium required for tea fermentation in their respective areas; the distribution mechanism 4 is also set up in four groups, corresponding to the four areas.

[0051] Specifically, the fermentation chamber 131 can be divided into four regions with the same structure and symmetrical positions. The four humidification mechanisms 2 and the four distribution mechanisms 4 are symmetrically arranged in the four regions. The disturbance component 3 can synchronously drive the four distribution mechanisms 4 to perform actions. The number of opening and closing of the atomizing spray nozzles 22 and the supply of humidifying medium in each region are consistent. The humidifying medium is output in a symmetrical and uniform form in the fermentation chamber 131. The humidity supply conditions corresponding to each region are the same, thereby making the humidity distribution in the fermentation chamber 131 more balanced and the overall fermentation process in the fermentation chamber 131 more consistent.

[0052] Specifically, combined Figure 5 As shown, the humidification mechanism 2 consists of a humidification channel 21 inside the inner wall of the fermentation chamber 131, multiple connecting pipes 25 inside the channel, and atomizing spray nozzles 22 opened on the inner wall of the fermentation chamber 131. Each atomizing spray nozzle 22 is connected to the corresponding connecting pipe 25. The atomizing spray nozzles 22 include two sets of basic humidification nozzles 23 and two sets of adjustable humidification nozzles 24. The basic humidification nozzles 23 are distributed on the inner wall of the fermentation chamber 131 near the edge of the area, and the adjustable humidification nozzles 24 are distributed in the middle of the inner wall of the fermentation chamber 131.

[0053] In this structural configuration, the humidification channel 21 provides an internal channel for the delivery of the humidification medium, and the connecting pipe 25 can stably deliver the humidification medium to the corresponding atomizing spray port 22. The positions of the two sets of basic humidification ports 23 and the two sets of adjustable humidification ports 24 can form a symmetrical humidification point layout with the four zones of the fermentation chamber 131. The basic humidification ports 23 can continuously provide basic humidity conditions for the fermentation chamber 131, and the adjustable humidification ports 24 can change their working state in conjunction with the action of the distribution mechanism 4, thereby realizing the graded output of humidity in the fermentation chamber 131. The symmetrical layout of the humidification points in each area can keep the supply position of the humidification medium in the fermentation chamber 131 uniform. During the humidification process, the humidification medium enters the connecting pipe 25 and is then delivered to the atomizing spray port 22 for external output through the connecting pipe 25.

[0054] The fermentation tray 13 described above has a built-in stretching frame 14 connected to its bottom, which allows the fermentation tray 13 to be stretched out of the fermentation chamber. On this basis, the connecting pipe 25 adopts a built-in assembly method (not shown in the figure). The connecting pipe 25 is laid along the humidification channel 21. The connection end of the connecting pipe 25 and the atomizing spray nozzle 22 is fixed at the corresponding position on the inner wall of the fermentation chamber 131. The other end of the connecting pipe 25 is connected to the external humidification component (using existing technology, which will not be described in detail here) through a movable interface. When the fermentation tray 13 is pushed and pulled, the connecting pipe 25 can move synchronously with the fermentation chamber 131. The movable interface can maintain the connection between the connecting pipe 25 and the humidification component, ensuring the normal delivery of the humidification medium.

[0055] Back Figure 5 The disturbance component 3 consists of a disturbance shaft 31, disturbance blades 32, a drive component (not shown in the figure), and a toggle component 33. The disturbance shaft 31 is installed at the center of the bottom of the fermentation chamber 131. Four disturbance blades 32 are evenly arranged on the surface of the disturbance shaft 31. The four disturbance blades 32 are respectively set in the first region 100, the second region 200, the third region 300, and the fourth region 400. The disturbance shaft 31 is equipped with a drive component, which can drive the disturbance shaft 31 and the disturbance blades 32 to perform forward and reverse rotation at different amplitudes. The toggle component 33 is fixedly installed at the end of each of the four disturbance blades 32 away from the disturbance shaft 31.

[0056] The driving component provides rotational power to the disturbance shaft 31, which drives the disturbance shaft 31 to rotate in the forward or reverse direction. The disturbance shaft 31 drives the four disturbance blades 32 to move synchronously. The rotation amplitude of the disturbance blades 32 is determined by the output parameters of the driving component. During the rotation, the disturbance blades 32 turn over the tea leaves in the area. The disturbance blades 32 are arc-shaped as a whole, so they will not cause destructive damage to the tea leaves during the turning process.

[0057] Furthermore, regarding the assembly of the aforementioned driving component, the disturbance shaft 31 adopts a hollow shaft structure, and the driving component is assembled in the internal cavity of the disturbance shaft 31. The fixed end of the driving component is fixedly connected to the center position of the bottom of the fermentation chamber 131, and the output end of the driving component cooperates with the inner wall of the disturbance shaft 31. The driving component is fixed inside the disturbance shaft 31 by a positioning structure. Sealing components are provided at both ends of the disturbance shaft 31, and the sealing components form a protective enclosure for the internal driving component. When the fermentation tray 13 is pushed and pulled, the disturbance shaft 31 and the driving component move synchronously with the fermentation chamber 131. The connecting line of the driving component adopts a flexible wiring method, and the wiring path is set along the pushing and pulling direction of the fermentation tray 13. The connecting line can adapt to the movement stroke of the fermentation tray 13 to ensure the normal operation of the driving component.

[0058] See Figure 6 and combined Figure 7 As shown, the distribution mechanism 4 consists of a rail 46, a limiting strip 47, a fixing plate 41, a first nozzle plug 42, a second nozzle plug 44, a first folding connecting rod 43, a second folding connecting rod 45, and a lever 421. The rail 46 is fixed to the upper end of the inner wall of the fermentation chamber 131, and the limiting strip 47 is assembled at the bottom of the inner wall of the fermentation chamber 131. The rail 46, the inner wall of the fermentation chamber 131, and the limiting strip 47 together form a shielding chamber 48. The fixing plate 41 is fixedly connected inside the shielding chamber 48. A nozzle plug 42 is installed inside the shielding chamber 48 and is located on both sides of the fixed plate 41. Two second nozzle plugs 44 are respectively installed between the two first nozzle plugs 42 and the fixed plate 41. The first nozzle plugs 42 and the second nozzle plugs 44 are connected by a first folding connecting rod 43. The second nozzle plugs 44 are connected to the fixed plate 41 by a second folding connecting rod 45. A lever 421 is assembled on the side of the two first nozzle plugs 42 near the middle of the fermentation chamber 131.

[0059] In this structural configuration, the shielding chamber 48 provides a limited space for the first nozzle plug 42, the second nozzle plug 44, and the two sets of folding linkages. The fixing plate 41 provides a fixed support position for the second folding linkage 45. The first folding linkage 43 and the second folding linkage 45 can extend under force. The first nozzle plug 42 and the second nozzle plug 44 can be directionally displaced along the shielding chamber 48 under the drive of the linkage. The lever 421 can cooperate with the lever 33 at the end of the disturbance component 3 and receive the driving force. After displacement, the first nozzle plug 42 and the second nozzle plug 44 cover the atomizing spray nozzle 22. The distribution mechanism 4 in the four areas of the fermentation chamber 131 can synchronously complete the same displacement action, and the shielding state of the atomizing spray nozzle 22 can be kept uniform.

[0060] Combination Figure 8 and Figure 9 As shown, when the agitator 33 of the disturbance component 3 initially contacts the paddle 421 and applies a thrust (from the initial fermentation stage to the mid-fermentation stage), the driving force acts directly on the paddle 421 of the first nozzle plug 42, and the first folding connecting rod 43 is pulled and gradually extends. At this time, after the first nozzle plug 42 moves, it covers the position of the adjusting humidification port 24; combined with Figure 9 , Figure 10 and Figure 11 As shown, when the disturbance component 3 changes the forward and reverse rotation amplitude of the disturbance blade 32 (from the mid-stage fermentation stage to the late-stage fermentation stage), and the actuating component 33 applies further thrust to the actuating plate 421, the first folding connecting rod 43 fully extends and transmits the force to the second nozzle plug 44. The second folding connecting rod 45 is pulled and gradually extends. After the first nozzle plug 42 continues to move, it covers the position of the basic humidification port 23. After the second nozzle plug 44 moves synchronously, it covers the position of the adjusting humidification port 24.

[0061] It should be noted that when the distribution mechanism 4 moves during the extension of the connecting rod, the humidification port 24 will be briefly opened. The first folding connecting rod 43 is located between the first nozzle plug 42 and the second nozzle plug 44. The first folding connecting rod 43 can form a barrier during the displacement of the second nozzle plug 44. This barrier can prevent the humidification medium from being output from the briefly opened position of the humidification port 24. The output state of the humidification medium can remain stable and will not affect the internal environment of the fermentation chamber 131.

[0062] Back Figure 7It can be seen that elastic covers 49 (preferably made of food-grade silicone) are laid on the side of the first nozzle plug 42 and the second nozzle plug 44 near the inner wall of the fermentation chamber 131, as well as on the upper and lower surfaces. The elastic covers 49 can form a sealed contact with the inner wall of the fermentation chamber 131 when the first nozzle plug 42 and the second nozzle plug 44 are moved to the shielded position, thereby improving the fit between the first nozzle plug 42, the second nozzle plug 44 and the corresponding atomizing spray nozzle 22. The elastic pressing and fitting effect between the elastic covers 49 and the inner wall of the fermentation chamber 131 can keep the first nozzle plug 42 and the second nozzle plug 44 in a stable position after they are moved to the corresponding shielded position, forming a self-locking structure.

[0063] The top surfaces of the four perturbed leaves 32 are each equipped with a sensing structure 5 (using existing technology). The sensing structure 5 can be distributed in four areas of the fermentation chamber 131 along with the perturbed leaves 32 to collect environmental parameters of the corresponding areas in real time. The collected environmental parameters can be transmitted to the control unit in real time. The control unit compares the detected environmental parameters with the preset range of parameters for the early stage of fermentation, the middle stage of fermentation, and the late stage of fermentation. The control unit identifies the current fermentation stage of the tea leaves based on the parameter comparison results. According to the identified fermentation stage, the control unit outputs the corresponding control command to the drive component inside the perturbed component 3. After receiving the command, the drive component drives the perturbed shaft 31 and the perturbed leaves 32 to perform forward and reverse rotation actions at a preset amplitude that matches the fermentation stage. The rotation of the perturbed leaves 32 can synchronously drive the distribution mechanism 4 to move, thereby adapting the humidity supply state in the fermentation chamber 131 to the current fermentation stage.

[0064] Among them, the sensing structure 5 integrates sensors adapted to the detection of tea fermentation environment, mainly including temperature and humidity sensors and oxidation-reduction potential sensors; the temperature and humidity sensors are used to detect the temperature and relative humidity parameters in the fermentation chamber 131 in real time, and the oxidation-reduction potential sensors are used to detect the oxidation state parameters corresponding to the enzymatic reaction during tea fermentation in real time. The above sensors can work together to complete the collection of fermentation environment parameters and provide data support for the identification of fermentation stages.

[0065] Working principle:

[0066] In actual fermentation operations, the sensing structure 5 is distributed in four areas of the fermentation chamber 131 along with the disturbance leaf 32, synchronously collecting environmental parameters of each area. When the parameters detected by the temperature and humidity sensor and the redox potential sensor are within the preset range for the early stage of fermentation, the control unit recognizes that the current stage is the early stage of fermentation. The driving component drives the disturbance leaf 32 to maintain the corresponding posture, the distribution mechanism 4 does not block the atomizing spray nozzle 22, and both sets of basic humidification nozzles 23 and two sets of adjustable humidification nozzles 24 are in working condition, maintaining a high humidity environment in the fermentation chamber 131. When the detected parameters change to the preset range for the middle stage of fermentation, the control unit recognizes that the current stage is the early stage of fermentation. During the middle stage of fermentation, the driving component drives the disturbance leaf 32 to rotate forward and backward at a first preset amplitude. The actuating component 33 at the end of the disturbance leaf 32 drives the distribution mechanism 4 to move and block the adjusting humidification port 24. Only the basic humidification port 23 remains in working state, and the humidity in the fermentation chamber 131 is maintained stably. When the detection parameters change to the preset range of the later stage of fermentation, the control unit recognizes that the current stage of fermentation is the later stage. The driving component drives the disturbance leaf 32 to rotate forward and backward at a second preset amplitude. The distribution mechanism 4 is further displaced under the drive of the disturbance leaf 32, while blocking the basic humidification port 23 and the adjusting humidification port 24. The humidity in the fermentation chamber 131 gradually decreases.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A segmented humidity-controlled fermentation device for tea, comprising a device body (1), the device body (1) comprising a box (11), wherein a fermentation chamber (12) is formed inside the box (11), and a plurality of built-in stretching frames (14) are provided in the fermentation chamber (12), each of the built-in stretching frames (14) being equipped with a fermentation tray (13), characterized in that: Each of the fermentation trays (13) has a fermentation chamber (131) for holding tea leaves and fermenting them. The fermentation chamber (131) is equipped with a humidification mechanism (2) inside its inner wall. The humidification mechanism (2) has multiple atomizing spray nozzles (22) for providing a humidification medium to the fermentation chamber (131). The fermentation chamber (131) is rotatably provided with a disturbance component (3) at the bottom of its inner cavity. The disturbance component (3) mechanically disturbs the tea leaves at different rotation amplitudes at different stages of tea fermentation. The fermentation chamber (131) is movably provided with a distribution mechanism (4) on its inner wall. The distribution mechanism (4) is in transmission cooperation with the disturbance component (3). When the tea fermentation is in the early stage, the disturbance component (3) drives the distribution mechanism (4) to move to the first position, so that all the atomizing spray nozzles (22) are opened to achieve high humidity fermentation; when the fermentation enters the middle stage, the disturbance component (3) drives the distribution mechanism (4) to move to the second position with the first rotation amplitude, so that the atomizing spray nozzles (22) are partially closed to maintain stable humidity; when the fermentation enters the later stage, the disturbance component (3) drives the distribution mechanism (4) to move to the third position with the second rotation amplitude greater than the first rotation amplitude, so that the atomizing spray nozzles (22) are closed to reduce humidity and promote fermentation and shaping.

2. The segmented humidity-controlled fermentation device for tea according to claim 1, characterized in that: The fermentation chamber (131) is divided into a first area (100), a second area (200), a third area (300) and a fourth area (400). The humidification mechanism (2) is provided in four groups, which are located in the first region (100), the second region (200), the third region (300) and the fourth region (400) respectively, and are used to provide humidification medium to their respective regions; The distribution mechanism (4) is provided in four groups, located in the first region (100), the second region (200), the third region (300) and the fourth region (400) respectively. When the distribution mechanism (4) moves under the drive of the disturbance component (3), it can independently adjust the number of opening and closing of the atomizing spray nozzles (22) in its respective region.

3. The segmented humidity-controlled fermentation device for tea according to claim 1, characterized in that: The humidification mechanism (2) includes a humidification channel (21) opened inside the inner wall of the fermentation chamber (131). Multiple connecting pipes (25) are installed inside the humidification channel (21). The atomizing spray nozzle (22) is opened on the inner wall of the fermentation chamber (131), and each atomizing spray nozzle (22) is connected to the corresponding connecting pipe (25).

4. The segmented humidity-controlled fermentation device for tea according to claim 3, characterized in that: The atomizing spray nozzle (22) includes two sets of basic humidification nozzles (23) and two sets of regulating humidification nozzles (24). The basic humidification nozzles (23) are located on the inner wall of the fermentation chamber (131) near the edge of the area and are used to provide basic humidity during the fermentation process. The regulating humidification nozzles (24) are located in the middle of the inner wall of the fermentation chamber (131) and are used to adjust the humidity in stages during the fermentation process.

5. The segmented humidity-controlled fermentation device for tea according to claim 2, characterized in that: The disturbance component (3) includes a disturbance shaft (31) installed at the center of the bottom of the fermentation chamber (131). Four disturbance leaves (32) are evenly arranged on the surface of the disturbance shaft (31), and the four disturbance leaves (32) are respectively located in the first region (100), the second region (200), the third region (300) and the fourth region (400), and are used to turn the tea leaves in their respective regions when rotating. The disturbance shaft (31) is equipped with a drive component inside, which drives the disturbance shaft (31) to drive the disturbance blade (32) to rotate forward and backward at different amplitudes.

6. The segmented humidity-controlled fermentation device for tea according to claim 5, characterized in that: Each of the four disturbance blades (32) has a toggle element (33) fixedly installed at the end away from the disturbance shaft (31).

7. The segmented humidity-controlled fermentation device for tea according to claim 1, characterized in that: The distribution mechanism (4) includes a rail (46) fixedly installed on the upper end of the inner wall of the fermentation chamber (131), and a limiting strip (47) is installed at the bottom of the inner wall of the fermentation chamber (131). The rail (46), the inner wall of the fermentation chamber (131) and the limiting strip (47) together constitute a shielding chamber (48).

8. The segmented humidity-controlled fermentation device for tea according to claim 7, characterized in that: The distribution mechanism (4) also includes a fixed plate (41) fixedly connected inside the shielding chamber (48). The shielding chamber (48) is provided with two first nozzle plugs (42), and the two first nozzle plugs (42) are located on both sides of the fixed plate (41). The distribution mechanism (4) further includes two second nozzle plugs (44), which are located between the two first nozzle plugs (42) and the fixed plate (41); The first nozzle plug (42) and the second nozzle plug (44) are connected by a first folding link (43), and the second nozzle plug (44) and the fixed plate (41) are connected by a second folding link (45). Both of the first nozzle plugs (42) are equipped with a lever (421) on the side near the middle of the fermentation chamber (131).

9. The segmented humidity-controlled fermentation device for tea according to claim 8, characterized in that: Elastic covers (49) are laid on the side of the first nozzle plug (42) and the second nozzle plug (44) near the inner wall of the fermentation chamber (131), as well as on the upper and lower surfaces of the first nozzle plug (42) and the second nozzle plug (44); the elastic covers (49) are used to form a sealed contact with the inner wall of the fermentation chamber (131) when the first nozzle plug (42) and the second nozzle plug (44) move to the shielding position.

10. The segmented humidity-controlled fermentation device for tea according to claim 5, characterized in that: The top surfaces of the four disturbance blades (32) are each equipped with a sensing structure (5). The sensing structure (5) is used to detect environmental parameters in the fermentation chamber (131) in real time. The disturbance component (3) identifies the current fermentation stage based on the environmental parameters detected by the sensing structure (5) and rotates at a preset amplitude corresponding to the fermentation stage.

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