Black tea fermentation device facilitating turning of materials

Abstract

This utility model relates to the field of dark tea fermentation technology, specifically a dark tea fermentation device that facilitates material turning. It includes a fermentation box with supports fixedly connected to its bottom and middle inner side, and a detachable placement box mounted on the supports; a sealing cover, which is raised and lowered inside the fermentation box via a lifting mechanism and positioned above the placement box; and a stirring mechanism located below the sealing cover. This utility model, through the combined use of the sealing cover and the fermentation box, achieves a closed operation during the stirring process, effectively preventing the splashing of tea leaves during stirring and solving the problems of cross-contamination and cleaning difficulties caused by material splashing in open systems.

Description

Technical Field

[0001] This utility model relates to the field of dark tea fermentation technology, specifically to a dark tea fermentation device that facilitates turning over the materials. Background Technology

[0002] The "fermentation" of dark tea is more accurately described as microbial fermentation. It differs from the polyphenol oxidation and enzymatic oxidation of black tea, as well as the yellowing process of yellow or dark tea. It is a comprehensive process dominated by microorganisms, combining the effects of heat and moisture, enzymatic activity, and oxidation.

[0003] For example, the fermentation device for tea processing disclosed in patent announcement number CN219305939U includes a box body with an opening on the front side and a door at the opening. Multiple support plates are connected inside the box body, and multiple grooves are formed on the top of the support plates, with heating tubes installed within the grooves. Each support plate has a placement box on its top. This utility model incorporates multiple placement boxes within the box body. The beneficial effect of this utility model is that by using multiple placement boxes within the box body, a motor-driven stirring tube is used to stir the tea leaves within the placement boxes.

[0004] Although the aforementioned patent includes a stirring component, the combination of an open placement box and a rotating stirrer inevitably leads to tea leaves flying everywhere. This not only causes material loss, but the splashed tea leaves also adhere to the inner wall of the box, contaminating the entire fermentation environment. Utility Model Content

[0005] The purpose of this invention is to provide a black tea fermentation device that facilitates turning the tea leaves, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A dark tea fermentation device that facilitates turning the tea leaves, including The fermentation box has a support fixedly connected to its inner bottom and middle, and a placement box can be detachably installed on the support. A sealing cover, which can be raised and lowered inside the fermentation box and located above the placement box via a lifting mechanism; The stirring mechanism is located below the sealing cover.

[0007] Preferably, guide grooves are provided on both inner walls of the bracket, and guide strips that slide in cooperation with the guide grooves are fixedly connected to both outer walls of the placement box. Preferably, the lifting mechanism includes a transmission housing vertically fixedly connected to the middle of the back of the fermentation box, and a lead screw rotatably connected to the inside of the transmission housing via a bearing. A motor is fixedly connected to the top of the transmission housing, and the output shaft of the motor is fixedly connected to the lead screw. Two lifting frames are threadedly connected to the outside of the lead screw from top to bottom. One end of the lifting frame is provided with a threaded hole that mates with the thread of the lead screw. Preferably, the stirring mechanism includes a rotary joint fixedly connected to the middle of the sealing cover plate. The fixed end of the rotary joint is fixedly connected to the middle of the top of the sealing cover plate. Its movable end extends downward and is fixedly connected with a plurality of hollow nozzles at equal arcs. A machine box is fixedly connected to the top of the sealing cover plate and to the side away from the lifting frame. A second motor is fixedly connected inside the machine box. The output shaft of the second motor extends into the inside of the sealing cover plate and is fixedly connected to a drive gear. A driven gear that meshes with the drive gear is fixedly connected to the outer periphery of the movable end of the rotary joint. A plurality of material-turning claws are evenly distributed at the bottom of the hollow nozzles. A plurality of nozzles are evenly distributed at the top of the hollow nozzles. Preferably, the stirring mechanism further includes a water tank fixedly connected to the lower right side of the fermentation tank, and a water pump fixedly connected to the top of the water tank. The input end of the water pump is connected to the water tank through a pipe, and the output end of the water pump is fixedly connected to a diverter pipe. The output end of the diverter pipe is fixedly connected to two inlet pipes. The output end of the inlet pipe is fixedly connected to the input end of the rotary joint through a corrugated pipe. A liquid level sensor is fixedly connected to the lower right side of the water tank. The detection end of the liquid level sensor extends into the interior of the water tank. A water supply pipe is fixedly connected to the upper right side of the water tank. Preferably, a controller is fixedly connected to the outside of the front right side of the fermentation tank, and the controller is electrically connected to the liquid level sensor, motor one, motor two and water pump.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This black tea fermentation device, which facilitates material turning, achieves a closed operation during the stirring process through the use of a sealing cover plate in conjunction with the fermentation box. This effectively prevents tea fragments from splashing during stirring and solves the problems of cross-contamination and cleaning difficulties caused by material splashing in open systems.

[0009] This black tea fermentation device, which facilitates material turning, achieves integrated operation of material humidification and turning in a closed environment through the combined use of rotary joints, hollow spray pipes and nozzles. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the fermentation box of this utility model; Figure 3This is a schematic diagram of the lead screw mounting structure of this utility model; Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle; Figure 5 For the present utility model Figure 3 Enlarged diagram of point B in the middle.

[0011] In the diagram: 1. Fermentation box; 2. Support frame; 3. Placement box; 4. Sealing cover; 5. Guide groove; 6. Guide bar; 7. Transmission housing; 8. Lead screw; 9. Motor 1; 10. Lifting frame; 12. Rotary joint; 13. Hollow nozzle; 14. Machine housing; 15. Motor 2; 16. Drive gear; 17. Driven gear; 18. Turning claw; 19. Nozzle; 20. Water tank; 21. Water pump; 22. Diverter pipe; 23. Inlet pipe; 24. Corrugated pipe; 25. Liquid level sensor; 26. Water supply pipe; 27. Controller. Detailed Implementation

[0012] 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.

[0013] like Figure 1-5 As shown, this utility model provides a technical solution: A fermentation device for black tea that facilitates turning over the raw materials includes a fermentation box 1. A support 2 is fixedly connected to the bottom and middle of the inner side of the fermentation box 1. An electric heating plate is fixedly connected to the middle of the support 2. A placement box 3 and a sealing cover 4 are detachably mounted on the support 2. The support 2 is raised and lowered inside the fermentation box 1 and positioned above the placement box 3 via a lifting mechanism. The lifting mechanism includes a transmission housing 7 vertically fixedly connected to the middle of the back of the fermentation box 1, and a lead screw 8 rotatably connected to the inside of the transmission housing 7 via bearings. A motor 9 is fixedly connected to the top of the transmission housing 7. The output shaft of the motor 9 is fixedly connected to the lead screw 8. The lead screw 8 is positioned from top to bottom. Two lifting frames 10 are connected in sequence by threads. One end of the lifting frame 10 has a threaded hole that mates with the threaded screw 8. Guide grooves 5 are provided on both inner walls of the support 2. Guide strips 6 that slide with the guide grooves 5 are fixedly connected to both outer walls of the placement box 3. The stirring mechanism is located below the sealing cover plate 4. The stirring mechanism includes a rotary joint 12 fixedly connected to the middle of the sealing cover plate 4. The fixed end of the rotary joint 12 is fixedly connected to the middle of the top of the sealing cover plate 4. Its movable end extends downward and is fixedly connected with several hollow nozzles 13 at equal arcs. The top of the sealing cover plate 4 and the side away from the lifting frame 10 A housing 14 is fixedly connected, and a second motor 15 is fixedly connected inside the housing 14. The output shaft of the second motor 15 extends into the interior of the sealing cover 4 and is fixedly connected to a drive gear 16. A driven gear 17 that meshes with the drive gear 16 is fixedly connected to the outer periphery of the movable end of the rotary joint 12. Several material-turning claws 18 are evenly distributed at the bottom end of the hollow nozzle 13, and several nozzles 19 are evenly distributed at the top end of the hollow nozzle 13. The stirring mechanism also includes a water tank 20 fixedly connected to the lower right side of the fermentation tank 1, and a water pump 21 fixedly connected to the top end of the water tank 20. The input end of the water pump 21 is connected to the fermentation tank 1 via a pipe. Water tank 20 is connected to the output end of water pump 21 and a diversion pipe 22 is fixedly connected to the output end of the diversion pipe 22. Two water inlet pipes 23 are fixedly connected to the output end of the water inlet pipe 23 and the input end of the rotary joint 12 are fixedly connected through a bellows 24. A liquid level sensor 25 is fixedly connected to the lower right side of water tank 20. The detection end of the liquid level sensor 25 extends into the interior of water tank 20. A water supply pipe 26 is fixedly connected to the upper right side of water tank 20. A controller 27 is fixedly connected to the outside of the front right side of fermentation tank 1. The controller 27 is electrically connected to the liquid level sensor 25, motor 1 9, motor 2 15 and water pump 21. In this embodiment, the use of the sealing cover plate 4 in conjunction with the fermentation box 1 achieves a closed operation of the stirring process, effectively preventing the splashing of tea leaves during stirring and solving the problems of cross-contamination and cleaning difficulties caused by material splashing in open systems.

[0014] Furthermore, by using the rotary joint 12, the hollow nozzle 13, and the nozzle 19 together, the integrated operation of humidifying and turning materials in a closed environment is realized.

[0015] Working principle: The black tea leaves to be fermented are placed in the placement box 3, and the placement box 3 is pushed into the fermentation chamber 1 along the support 2 by the cooperation of the guide bar 6 and the guide groove 5. The controller 27 controls the motor 9 to start, which drives the lead screw 8 to rotate, driving the two lifting frames 10 to move in opposite directions, thereby driving the sealing cover 4 to descend until it closes with the fermentation chamber 1 to form a sealed fermentation environment. The electric heating plate heats the placement box 3 and provides a suitable fermentation temperature. When it is necessary to turn the material, the controller 27 controls the motor 15 to start, which drives the drive gear 16 to rotate, thereby meshing with the driven gear 17 to drive the movable end of the rotary joint 12 and its connected hollow nozzle 13 and turning claw 18 to rotate. The turning claw 18 penetrates into the tea leaves to turn the material. The mixture is turned over and stirred to ensure uniform fermentation. If the humidity of the fermentation environment is insufficient, the controller 27 can start the water pump 21 to transport water from the water tank 20 through the diversion pipe 22 and the inlet pipe 23, and then through the corrugated pipe 24 to the fixed end of the rotary joint 12. The water flows through the movable end of the rotary joint 12 into the hollow spray pipe 13 and is evenly sprayed out from the nozzle 19 onto the surface of the tea leaves for humidification. The liquid level sensor 25 detects the water level in the water tank 20 in real time and automatically replenishes water through the water replenishment pipe 26 when the level is low. The turning of the material and the control of temperature and humidity during the entire fermentation process are all automatically coordinated by the controller 27. After the fermentation is completed, the controller 27 controls the motor 9 to reverse and lift the sealing cover 4 so that the placement box 3 can be removed to obtain the fermented black tea product.

[0016] In the specific implementation of this technical solution, conventional temperature and humidity sensors (such as capacitive humidity sensors, resistive temperature sensors, or integrated digital temperature and humidity sensors) can be configured inside the fermentation tank 1. Although these sensors are not described in detail in the technical solution, they are detection elements that can be conventionally selected by those skilled in the art based on the actual fermentation environment monitoring needs. Their installation position and signal transmission method follow the well-known technology in this field and do not affect the implementation of the core innovation of this solution. In practical applications, the temperature and humidity sensors are mainly used to monitor the temperature and humidity data inside the fermentation tank 1 in real time and transmit them to the controller 27, but their specific type and connection method can be adjusted according to production requirements, all of which fall within the reasonable extension scope of this technical solution.

[0017] In the specific implementation of this technical solution, conventional protective devices (such as corrugated dust covers or telescopic dust covers) can be configured on the outside of the lead screw 8. Although these protective devices are not described in detail in the technical solution, they are protective components that can be conventionally selected by those skilled in the art based on actual dust prevention and sealing requirements. Their installation methods and working principles follow well-known technologies in this field and do not affect the implementation of the core innovation of this solution. In practical applications, the protective devices are mainly used to prevent foreign objects such as tea leaves and dust from entering the transmission parts of the lead screw 8 and affecting the transmission accuracy and service life. However, their specific types and connection methods can be adjusted according to production requirements, all of which fall within the reasonable extension scope of this technical solution.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model 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 utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fermentation device for black tea that facilitates turning over the raw materials, characterized in that: include Fermentation box (1), with a support (2) fixedly connected to the bottom and middle of its inner side, and a placement box (3) detachably installed on the support (2); The sealing cover (4) is installed inside the fermentation box (1) and above the placement box (3) by means of a lifting mechanism; The stirring mechanism is located below the sealing cover (4).

2. The black tea fermentation device for easy turning of materials according to claim 1, characterized in that: Guide grooves (5) are provided on both inner walls of the bracket (2), and guide strips (6) that slide with the guide grooves (5) are fixedly connected to both outer walls of the placement box (3).

3. The black tea fermentation device for easy turning of materials according to claim 1, characterized in that: The lifting mechanism includes a transmission housing (7) vertically fixedly connected to the middle of the back of the fermentation box (1), and a lead screw (8) rotatably connected to the inside of the transmission housing (7) via a bearing. A motor (9) is fixedly connected to the top of the transmission housing (7). The output shaft of the motor (9) is fixedly connected to the lead screw (8). Two lifting frames (10) are threadedly connected from top to bottom to the outside of the lead screw (8). One end of the lifting frame (10) is provided with a threaded hole that is threaded to the lead screw (8).

4. The black tea fermentation device for easy turning of materials according to claim 3, characterized in that: The stirring mechanism includes a rotary joint (12) fixedly connected to the middle of the sealing cover plate (4). The fixed end of the rotary joint (12) is fixedly connected to the middle of the top of the sealing cover plate (4). Its movable end extends downward and is fixedly connected with several hollow nozzles (13) at equal arcs. The top of the sealing cover plate (4) and the side away from the lifting frame (10) is fixedly connected to a machine box (14). The inside of the machine box (14) is fixedly connected to a second motor (15). The output shaft of the second motor (15) extends into the inside of the sealing cover plate (4) and is fixedly connected to a drive gear (16). The outer periphery of the movable end of the rotary joint (12) is fixedly connected to a driven gear (17) that meshes with the drive gear (16). Several material turning claws (18) are evenly distributed at the bottom of the hollow nozzles (13). Several nozzles (19) are evenly distributed at the top of the hollow nozzles (13).

5. The black tea fermentation device for easy turning of materials according to claim 4, characterized in that: The stirring mechanism also includes a water tank (20) fixedly connected to the lower right side of the fermentation tank (1), and a water pump (21) fixedly connected to the top of the water tank (20). The input end of the water pump (21) is connected to the water tank (20) through a pipe. The output end of the water pump (21) is fixedly connected to a diversion pipe (22). The output end of the diversion pipe (22) is fixedly connected to two water inlet pipes (23). The output end of the water inlet pipe (23) is fixedly connected to the input end of the rotary joint (12) through a corrugated pipe (24). A liquid level sensor (25) is fixedly connected to the lower right side of the water tank (20). The detection end of the liquid level sensor (25) extends into the interior of the water tank (20). A water supply pipe (26) is fixedly connected to the upper right side of the water tank (20).

6. The black tea fermentation device for easy turning of materials according to claim 5, characterized in that: A controller (27) is fixedly connected to the outside of the front right side of the fermentation tank (1). The controller (27) is electrically connected to the liquid level sensor (25), motor one (9), motor two (15) and water pump (21).

Images