A black tea withering trough
By introducing a cylinder pusher plate and gear transmission system into the black tea withering trough, the tea leaves can be turned over in a controlled manner. The antibacterial cloth is fixed by springs and limit rods, which solves the problems of uneven water loss and unstable fixation of the antibacterial cloth during the withering process of black tea, thus improving the quality of tea and the protective effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HANKOU TEA FACTORY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-19
AI Technical Summary
During the withering process of black tea, the different contact with air and heat between the upper and lower layers and the edges and center areas leads to significant differences in the rate of water loss and uneven withering. Manual turning is inefficient and unstable, which can easily cause mold and mildew. Furthermore, it is difficult to accurately control the laying of antibacterial cloth, which affects the quality of the tea.
A black tea withering trough was designed, which uses a cylinder to drive a push plate to drive a rack and gear transmission system to achieve controllable flipping of the flip plate. Combined with a fixing component, the antibacterial cloth is quickly fixed by springs and limit rods to ensure uniform water loss and protective isolation of the tea leaves.
It achieves uniform water loss and stable fixation of the antibacterial cloth during the withering process of black tea, improving the consistency of tea quality and the protective effect, and avoiding the spoilage and contamination of tea.
Smart Images
Figure CN224368972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing equipment, and in particular to a black tea withering trough. Background Technology
[0002] Black tea is a fully fermented tea, and its production process mainly includes withering, rolling, fermentation, and drying. The withering trough is a specialized piece of equipment used in tea processing to achieve the withering process. It consists of a long, narrow trough, breathable grilles, ventilation, and heating devices. During operation, fresh leaves are laid on the grilles, and the equipment uses fans to deliver air and regulate the temperature, allowing air of suitable temperature and humidity to flow over the leaves, promoting moisture loss and the transformation of internal substances. As a key piece of equipment in large-scale tea production, the withering trough ensures uniform withering of fresh leaves through standardized control of temperature, humidity, and ventilation. Especially in black tea production, withering is a crucial first step, requiring the reduction of moisture in the fresh leaves to facilitate rolling and activate enzymatic reactions to form a unique flavor.
[0003] During the withering process of fresh black tea leaves, the different air and heat exposure rates between the upper and lower layers and between the edges and center areas lead to significant differences in water loss rates and uneven withering without turning. Manual turning is inefficient, difficult to control in frequency and intensity, and can cause the leaves to pile up for too long, resulting in mold and mildew, exacerbating leaf damage. Unstable manual operation can also interfere with the transformation of internal substances, leading to fluctuations in tea quality and affecting subsequent processes, as well as the aroma, taste, and appearance of the tea. Antibacterial cloth is typically laid on the withering trough to block external dust, microorganisms, and other impurities, preventing tea contamination. This cloth usually needs to be laid neatly by hand and secured with clips. However, manual laying makes it difficult to precisely control the flatness, easily resulting in wrinkles or localized loosening, leading to gaps in the protective area or obstructed airflow. Therefore, a black tea withering trough is proposed to solve these problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a black tea withering trough, which aims to improve the problem of manually turning black tea.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a black tea withering trough, including a withering box, a dust cover fixedly connected to the outside of the withering box, a fan fixedly connected inside the dust cover, a heating element fixedly connected to the outside of the fan, a withering trough fixedly connected to the top of the withering box, a flipping component provided on the top of the withering box, and fixed components provided on both sides of the withering trough.
[0006] The flipping assembly includes a cylinder, a push plate is fixedly connected to the output end of the cylinder, a rack is fixedly connected to the outer side of the push plate, a slide rail is slidably connected to the bottom of the rack, multiple rotating rods are rotatably connected to the top of the wilting box, a gear is fixedly connected to one end of each rotating rod, the multiple gears mesh with the rack, and a flipping plate is fixedly connected to the outer side of the rotating rod.
[0007] As a further description of the above technical solution:
[0008] The fixing component includes two connecting blocks. A spring is fixedly connected to the top of the connecting block, a connecting rod is fixedly connected to the top of the connecting block, and a limit rod is fixedly connected to the bottom of the connecting block. A support frame is slidably connected inside the withering groove. A rotating shaft is rotatably connected inside the support frame. A cloth feeding roller is fixedly connected to the outside of the rotating shaft. An antibacterial cloth is provided on the outside of the cloth feeding roller, and two limit holes are opened on the outside of the antibacterial cloth.
[0009] As a further description of the above technical solution:
[0010] The limiting rod is slidably connected inside the withering groove, and the connecting block is slidably connected inside the withering groove.
[0011] As a further description of the above technical solution:
[0012] The limiting rod is slidably connected inside the limiting hole.
[0013] As a further description of the above technical solution:
[0014] The spring is fixedly connected inside the withering trough, and the connecting rod is slidably connected inside the withering trough.
[0015] As a further description of the above technical solution:
[0016] The rotating rod is rotatably connected inside the withering trough, and the slide rail is fixedly connected to the top of the withering box.
[0017] As a further description of the above technical solution:
[0018] The heating element is fixedly connected inside the dust cover.
[0019] As a further description of the above technical solution:
[0020] The cylinder is fixedly connected inside the withering box.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, after being activated by the cylinder, the push plate moves linearly along the slide rail, driving the rack to slide. The rack meshes with the gear through a partial tooth profile, converting the linear motion into circular motion, driving the gear to rotate around the axis. The gear drives the rotating rod, enabling the flip plate to rotate at an angle. Because the rack is not designed with a full tooth profile, it only meshes with the gear in a specific stroke, limiting the maximum rotation angle of the flip plate to 180°, thus achieving controllable flipping of the black tea and meeting the process requirements of uniform withering and water loss.
[0023] 2. In this utility model, when the connecting rod is pulled outward, the connecting block compresses the spring, causing the limiting rod to disengage from the fixed position. The antibacterial cloth is then placed into the withering groove. After being released, the spring rebounds, and the limiting rod is inserted into the limiting hole to fix the antibacterial cloth. The support frame is pushed to make the antibacterial cloth slide to the predetermined length. The connection point is torn to cut to a fixed length. The other end fixing mechanism is then activated in the same way to fix the other end of the antibacterial cloth, forming a complete protective isolation system. This achieves rapid fixing of the antibacterial cloth, greatly improves installation efficiency, and ensures a stable and consistent fixing effect. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a black tea withering trough proposed in this utility model;
[0025] Figure 2 An exploded three-dimensional schematic diagram of a dust cover for a black tea withering trough proposed in this utility model.
[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0027] Figure 4 This is a cross-sectional schematic diagram of a black tea withering trough proposed in this utility model.
[0028] Legend:
[0029] 1. Dust cover; 2. Withering box; 3. Withering trough; 4. Heating element; 5. Fan; 6. Cylinder; 7. Push plate; 8. Slide rail; 9. Rack; 10. Gear; 11. Rotating rod; 12. Flip plate; 13. Connecting rod; 14. Spring; 15. Connecting block; 16. Limiting rod; 17. Support frame; 18. Antibacterial cloth; 19. Cloth feeding roller; 20. Rotating shaft; 21. Limiting hole. Detailed Implementation
[0030] 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.
[0031] Reference Figures 1-4This utility model provides an embodiment of a black tea withering trough, including a withering box 2, a dust cover 1 fixedly connected to the outside of the withering box 2, a fan 5 fixedly connected inside the dust cover 1, a heating element 4 fixedly connected to the outside of the fan 5, a withering trough 3 fixedly connected to the top of the withering box 2, a turning component provided on the top of the withering box 2, and fixed components provided on both sides of the withering trough 3. The dust cover 1 is used to protect the fan 5 and the heating element 4, preventing dust and other debris from affecting the operation of the device. The fan 5 promotes air flow around the fresh leaves by conveying air, accelerating moisture evaporation. The heating element 4 can regulate the air temperature, forming a suitable temperature and humidity environment with the fan 5 to meet the process requirements of black tea withering. The withering trough 3 is used to hold the fresh leaves and provide space for withering operations. The device turns the fresh leaves by turning the turning component and quickly fixes the antibacterial cloth 18 by the fixed component.
[0032] The flipping assembly includes a cylinder 6, a push plate 7 fixedly connected to the output end of the cylinder 6, a rack 9 fixedly connected to the outside of the push plate 7, a slide rail 8 slidably connected to the bottom of the rack 9, multiple rotating rods 11 rotatably connected to the top of the wilting box 2, a gear 10 fixedly connected to one end of the rotating rod 11, the multiple gears 10 meshing with the rack 9, and a flipping plate 12 fixedly connected to the outside of the rotating rod 11. The flipping assembly starts to run through the cylinder 6, the push plate 7 moves through the cylinder 6, the push plate 7 drives the rack 9 to slide on the top of the slide rail 8, the rotating rod 11 rotates through the gears 10 meshing with the rack 9, and the flipping plate 12 flips through the rotating rod 11.
[0033] The fixing component includes two connecting blocks 15. A spring 14 is fixedly connected to the top of the connecting block 15, a connecting rod 13 is fixedly connected to the top of the connecting block 15, and a limiting rod 16 is fixedly connected to the bottom of the connecting block 15. A support frame 17 is slidably connected inside the withering trough 3. A rotating shaft 20 is rotatably connected inside the support frame 17. A cloth feeding roller 19 is fixedly connected to the outside of the rotating shaft 20. An antibacterial cloth 18 is provided on the outside of the cloth feeding roller 19. Two limiting holes 21 are opened on the outside of the antibacterial cloth 18. The fixing component functions through the connecting blocks 15. One end of the spring 14 is fixed to the top of the connecting block 15. The connecting block 15 transmits tension through the connecting rod 13. The limiting rod 16 is used to fix the antibacterial cloth 18. The support frame 17 is used to drive the antibacterial cloth 18 to move. The rotating shaft 20 is used to drive the antibacterial cloth 18 to rotate. There is a preset easy-tear breakage connection point between the two antibacterial cloths 18. Each antibacterial cloth 18 is fixed through the limiting holes 21.
[0034] The limiting rod 16 is slidably connected inside the withering trough 3, and the connecting block 15 is slidably connected inside the withering trough 3. The limiting rod 16 achieves the fixing and disassembly of the antibacterial cloth 18 by sliding, and the connecting block 15 drives the limiting rod 16 to move.
[0035] The limiting rod 16 is slidably connected inside the limiting hole 21, and the limiting rod 16 fixes the antibacterial cloth 18 through the limiting hole 21.
[0036] Spring 14 is fixedly connected inside the withering trough 3, and connecting rod 13 is slidably connected inside the withering trough 3. Spring 14 stores elastic potential energy by being fixed inside the withering trough 3, and the fixed component is movable through connecting rod 13.
[0037] The rotating rod 11 is rotatably connected inside the withering trough 3, and the slide rail 8 is fixedly connected to the top of the withering box 2. The rotating rod 11 drives the flap 12 to rotate by rotating inside the withering trough 3, and the rack 9 slides above the withering box 2 through the slide rail 8.
[0038] The heating element 4 is fixedly connected inside the dust cover 1. The heating element 4 works together with the fan 5 by being fixed inside the dust cover 1.
[0039] Cylinder 6 is fixedly connected inside the withering box 2, and cylinder 6 operates inside the withering box 2.
[0040] Working principle:
[0041] When cylinder 6 is activated, push plate 7 moves precisely in a straight line along guide mechanism of slide rail 8 under its linear driving force, and drives rack 9, which is rigidly connected to it, to slide. Rack 9 meshes with gear 10 through partial tooth profile, converting linear motion into circular motion, driving gear 10 to rotate around the axis. Gear 10 and rotating rod 11 form a transmission system, transmitting rotational motion to rotating rod 11. Flip plate 12, as the actuator, achieves angular rotation under the drive of rotating rod 11. Because rack 9 is not a full tooth profile design, it only meshes with gear 10 within a specific stroke, limiting the maximum rotation angle of flip plate 12 to 180°, realizing controllable flipping of black tea and meeting the process requirements of uniform water loss during tea withering.
[0042] When an outward pulling force is applied to the connecting rod 13, this force is transmitted through the connecting block 15. During this process, the elastic energy storage element spring 14 is compressed, generating elastic potential energy. At the same time, the limiting rod 16, driven by the connecting block 15, disengages from its initial fixed position. At this point, the antibacterial cloth 18 can be placed in the working area of the withering trough 3. When the pulling force on the connecting rod 13 is removed, the spring 14 releases its elastic potential energy, driving the connecting block 15 to move in the opposite direction, causing the limiting rod 16 to reset along the linear guide rail. The limiting rod 16 then inserts into the limiting... After the positioning hole 21, a locking structure is formed, fixing the antibacterial cloth 18 to the designated position of the withering trough 3. Then, through the support frame 17, the antibacterial cloth 18 slides along the guide rail direction. When the antibacterial cloth 18 is unfolded to the predetermined working length, the isolation layer is cut to a fixed length by acting on the preset easily broken structure connection point of the antibacterial cloth 18. After the cutting is completed, the above operation process is repeated to activate the fixing mechanism at the other end of the withering trough 3 and mechanically fix the other end of the antibacterial cloth 18, thus forming a complete protective isolation system.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A black tea withering channel comprising a withering box (2), characterized in that: A dust cover (1) is fixedly connected to the outside of the withering box (2), a fan (5) is fixedly connected inside the dust cover (1), a heating element (4) is fixedly connected to the outside of the fan (5), a withering trough (3) is fixedly connected to the top of the withering box (2), a flipping component is provided on the top of the withering box (2), and fixed components are provided on both sides of the withering trough (3). The flipping assembly includes a cylinder (6), a push plate (7) is fixedly connected to the output end of the cylinder (6), a rack (9) is fixedly connected to the outside of the push plate (7), a slide rail (8) is slidably connected to the bottom of the rack (9), a plurality of rotating rods (11) are rotatably connected to the top of the withering box (2), a gear (10) is fixedly connected to one end of the rotating rod (11), the plurality of gears (10) mesh with the rack (9), and a flip plate (12) is fixedly connected to the outside of the rotating rod (11).
2. A withering channel for black tea according to claim 1, characterised in that: The fixing component includes two connecting blocks (15), a spring (14) is fixedly connected to the top of the connecting block (15), a connecting rod (13) is fixedly connected to the top of the connecting block (15), a limit rod (16) is fixedly connected to the bottom of the connecting block (15), a support frame (17) is slidably connected inside the withering groove (3), a rotating shaft (20) is rotatably connected inside the support frame (17), a cloth feeding roller (19) is fixedly connected to the outside of the rotating shaft (20), an antibacterial cloth (18) is provided on the outside of the cloth feeding roller (19), and two limit holes (21) are opened on the outside of the antibacterial cloth (18).
3. A withering channel for black tea according to claim 2, characterised in that: The limiting rod (16) is slidably connected inside the withering groove (3), and the connecting block (15) is slidably connected inside the withering groove (3).
4. A withering channel for black tea according to claim 2, characterised in that: The limiting rod (16) is slidably connected inside the limiting hole (21).
5. A withering channel for black tea according to claim 2, characterised in that: The spring (14) is fixedly connected inside the withering groove (3), and the connecting rod (13) is slidably connected inside the withering groove (3).
6. A withering channel for black tea according to claim 1, characterised in that: The rotating rod (11) is rotatably connected inside the withering trough (3), and the slide rail (8) is fixedly connected to the top of the withering box (2).
7. The black tea withering trough according to claim 1, characterized in that: The heating element (4) is fixedly connected inside the dust cover (1).
8. The black tea withering trough according to claim 1, characterized in that: The cylinder (6) is fixedly connected inside the withering box (2).