Tea leaf drying box
The transmission system and limiting mechanism driven by servo motors enable the tea leaves to be rotated and distributed evenly, solving the problem of uneven heating in existing equipment and improving the efficiency and quality of tea drying.
Patent Information
- Application Number
- CN202521007660.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
- Estimated Expiration
- 2035-05-21
AI Technical Summary
Existing tea drying equipment uses static spreading or simple rotary drying, which cannot accurately control the thickness of the tea leaves, resulting in uneven heating, local over- or under-baking, and affecting drying efficiency and quality.
The transmission system, driven by a servo motor, uses a transmission rod, a transmission disc, and a linkage rod to drive the drive plate and drive barrel to move up and down. Combined with a limiting mechanism and a dispersing mechanism, it achieves uniform tumbling and distribution of tea leaves.
It improves the drying efficiency and quality of tea leaves, enhances the tea leaf selection effect, avoids localized over- or under-roasting, and simplifies the tea leaf extraction process.
Smart Images

Figure CN224188898U_ABST
Abstract
Description
A tea drying box Technical Field
[0001] This utility model relates to the field of tea processing technology, and in particular to a tea drying box. Background Technology
[0002] Drying is one of the initial processing steps for green tea, yellow tea, black tea, oolong tea, and some red teas. Its main purpose is to destroy and deactivate the oxidase activity in fresh leaves through high temperature, inhibit the enzymatic oxidation of tea polyphenols in fresh leaves, evaporate some of the moisture in fresh leaves, soften the tea leaves, make them easier to roll and shape, and at the same time release a grassy aroma and promote the formation of a good fragrance.
[0003] For example, patent (CN 220806138 U) discloses a tea drying box, including a box body with a drying chamber, a rotatable door panel on the box body covering the opening of the drying chamber, a rotatable rotating rod inside the drying chamber, a driving component on the box body that is pulsatorically connected to the rotating rod, at least one support plate on the rotating rod, the support plate having a receiving groove and a detachable tray inside the receiving groove, a movable locking block on the support plate and a spring abutting against the movable locking block, the spring driving the movable locking block to extend into the receiving groove and abut against the support plate, and a heating assembly inside the drying chamber, the heating assembly including multiple heating wires located on opposite sides of the rotating rod. This utility model solves the technical problem of inconvenient removal of dried tea, resulting in convenient placement and removal of tea from the drying box, simple and convenient operation, improving tea drying efficiency, and avoiding direct contact between workers and tea, thus reducing the risk of burns.
[0004] When using the above technology, the following technical problems were found in the existing technology: Traditional tea drying equipment mainly adopts static spreading or simple rotary drying. The existing technology adopts simple rotary drying, which drives the tray to rotate by a motor and uses centrifugal force to make the tea spread naturally. However, the spreading effect depends on the rotation speed and the thickness cannot be precisely controlled. During the rotation, the tea tends to accumulate on the edge of the tray, resulting in uneven heating and local over- or under-baking. To address these issues, we designed a tea drying box to provide an alternative technical solution. Summary of the Invention
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A tea drying box includes a drying box with a drying barrel inside. A barrel lid is rotatably connected to the top of the drying barrel. A drive barrel is slidably connected inside the drying barrel. A placement tray is slidably connected inside the drive barrel. Heating tubes are installed at both ends inside the drying box. Drive plates are fixed at both ends of the bottom outer side of the drive barrel. The ends of the two drive plates that are far apart from each other pass through the drying barrel and are slidably connected to the drying box. A dispersing mechanism for evenly distributing tea leaves is provided at the bottom of the drying box.
[0007] In a preferred embodiment of the tea drying box provided by this utility model, the dispersing mechanism includes a drying box, a transmission disc, a drive barrel, and a Y-shaped frame. A Y-shaped frame is fixed to the bottom of one side of the drying box. A servo motor is mounted on one side of the Y-shaped frame. A transmission rod is rotatably connected to the bottom of the drying box. A transmission disc is fixed to both ends of the transmission rod. A linkage rod is rotatably connected to the outer side of the transmission disc. The end of the linkage rod away from the transmission disc is rotatably connected to the drive plate. The output end of the servo motor is fixed to the transmission rod.
[0008] In a preferred embodiment of the tea drying box provided by this utility model, the connection between the transmission disc and the linkage rod is offset from the center of the transmission disc.
[0009] In a preferred embodiment of the tea drying box provided by this utility model, a limiting mechanism for positioning the placement tray is provided on the inner side of the drive barrel. The limiting mechanism includes a pin and a spring. Limiting grooves are provided at all four ends of the inner side of the drive barrel. Pins are slidably connected to all four ends of the inner side of the placement tray. One end of the pin is slidably connected to the corresponding limiting groove. A spring is sleeved on the outer side of the pin.
[0010] In a preferred embodiment of the tea drying box provided by this utility model, one end of the spring is fixed to the pin, and the other end of the spring is fixed to the placement tray.
[0011] In a preferred embodiment of the tea drying box provided by this utility model, exhaust fans are installed at both ends on the other side of the drying box, and support columns are fixed at all four ends of the bottom of the drying box.
[0012] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.
[0013] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:
[0014] This utility model provides a tea drying box. By starting a servo motor, the transmission rod is driven to rotate, which in turn drives the transmission disc to rotate. The transmission disc drives the linkage rod, drive plate, and drive barrel to bounce up and down along the inner side of the drying box, so that the tea in the drying box and the tea tray inside the tray are effectively turned over. The tea leaves inside the tray are effectively dropped to the bottom of the drying box by the bouncing, thereby improving the tea screening effect and improving the drying efficiency and quality of the tea.
[0015] By placing tea leaves inside several trays and then placing those trays inside the drive barrel, and then using the elasticity of a spring to engage pins with corresponding limiting slots, the trays are fixed inside the drive barrel, thereby increasing the amount of tea leaves that can be dried. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 is a schematic diagram of the structure between the heat exhaust fan and the drying box of this utility model;
[0019] Figure 3 is a schematic diagram of the structure between the drying barrel and the barrel lid of this utility model;
[0020] Figure 4 is a schematic diagram of the structure between the drying drum and the drive drum of this utility model;
[0021] Figure 5 is a schematic diagram of the limiting mechanism of this utility model.
[0022] In the diagram: 1. Drying oven; 2. Drum lid; 3. Support column; 4. Servo motor; 5. Y-shaped frame; 6. Transmission plate; 7. Exhaust fan; 8. Linkage rod; 9. Heating tube; 10. Drying drum; 11. Drive plate; 12. Drive drum; 13. Transmission rod; 14. Placement tray; 15. Pin; 16. Spring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] Example 1
[0028] Please refer to Figures 1-5. A tea drying box includes a drying box 1, a drying barrel 10 inside the drying box 1, a barrel cover 2 rotatably connected to the top of the drying barrel 10, a drive barrel 12 slidably connected inside the drying barrel 10, a placement tray 14 slidably connected inside the drive barrel 12, heating tubes 9 are installed at both ends inside the drying box 1, and drive plates 11 are fixed at both ends of the bottom of the outer side of the drive barrel 12. The ends of the two drive plates 11 that are far apart from each other pass through the drying barrel 10 and are slidably connected to the drying box 1. A dispersing mechanism for evenly distributing tea leaves is provided at the bottom of the drying box 1.
[0029] In use, the lid 2 is opened to separate it from the drying barrel 10. Then, the tea leaves are placed inside several placement trays 14, and then the several placement trays 14 are placed inside the drive barrel 12. Before placing, the tea leaves are manually pre-flattened. Then, the lid 2 is closed, and the heating tube 9 is turned on to dry the pre-flattened tea leaves. After the tea leaves have been dried for a period of time, the dispersing mechanism is turned on to make the drive barrel 12, placement trays 14 and tea leaves ripple and agitate, so that the tea leaves are evenly turned over, thereby improving the drying effect of the tea leaves.
[0030] The dispersing mechanism includes a drying box 1, a transmission disc 6, a drive barrel 12, and a Y-shaped frame 5. The bottom of one side of the drying box 1 is fixed with a Y-shaped frame 5. A servo motor 4 is mounted on one side of the Y-shaped frame 5. The bottom of the drying box 1 is rotatably connected to a transmission rod 13. Both ends of the transmission rod 13 are fixed with transmission discs 6. The outer side of the transmission disc 6 is rotatably connected to a linkage rod 8. The end of the linkage rod 8 away from the transmission disc 6 is rotatably connected to a drive plate 11. The output end of the servo motor 4 is fixed to the transmission rod 13. The connection between the transmission disc 6 and the linkage rod 8 is offset from the center of the transmission disc 6.
[0031] Specifically, by starting the servo motor 4, the transmission rod 13 is driven to rotate, and the transmission rod 13 drives the transmission disk 6 to rotate. The transmission disk 6 drives the linkage rod 8, the drive plate 11, and the drive barrel 12 to bounce up and down along the inner side of the drying barrel 10, so that the tea leaves inside the drying barrel 10 and the placement tray 14 are effectively flipped. The tea leaves inside the placement tray 14 are effectively dropped to the bottom of the drying barrel 10 by the bouncing, thereby improving the tea leaf screening effect and improving the drying efficiency and quality of the tea leaves.
[0032] The inner side of the drive barrel 12 is provided with a limiting mechanism for positioning the placement tray 14. The limiting mechanism includes a pin 15 and a spring 16. Limiting grooves are provided at all four ends of the inner side of the drive barrel 12. Pins 15 are slidably connected to all four ends of the inner side of the placement tray 14. One end of the pin 15 is slidably connected to the corresponding limiting groove. A spring 16 is sleeved on the outer side of the pin 15. One end of the spring 16 is fixed to the pin 15, and the other end of the spring 16 is fixed to the placement tray 14.
[0033] Furthermore, by placing tea leaves inside several placement trays 14 and placing several placement trays 14 inside the drive barrel 12, and then using the elasticity of the spring 16 to drive the pin 15 to engage with the corresponding limiting groove, the placement trays 14 are fixed inside the drive barrel 12, thereby improving the drying effect of the tea leaves.
[0034] Both ends of the other side of the drying oven 1 are equipped with exhaust fans 7, and the four ends of the bottom of the drying oven 1 are fixed with support columns 3. The exhaust fans 7 effectively discharge the heat inside the drying oven 1, thereby effectively controlling the heat inside the drying oven 1.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A tea drying box, characterized in that, The equipment includes a drying box (1), inside which is a drying barrel (10). A barrel cover (2) is rotatably connected to the top of the drying barrel (10). A drive barrel (12) is slidably connected inside the drying barrel (10). A placement tray (14) is slidably connected inside the drive barrel (12). Heating tubes (9) are installed at both ends inside the drying box (1). Drive plates (11) are fixed at both ends of the bottom of the drive barrel (12). The ends of the two drive plates (11) that are far apart from each other pass through the drying barrel (10) and are slidably connected to the drying box (1). A dispersing mechanism for evenly distributing tea leaves is provided at the bottom of the drying box (1).
2. A tea drying cabinet as claimed in claim 1, wherein, The dispersing mechanism includes a drying box (1), a transmission disc (6), a drive barrel (12), and a Y-shaped frame (5). The bottom of one side of the drying box (1) is fixed with a Y-shaped frame (5). A servo motor (4) is mounted on one side of the Y-shaped frame (5). A transmission rod (13) is rotatably connected to the bottom of the drying box (1). Both ends of the transmission rod (13) are fixed with transmission discs (6). A linkage rod (8) is rotatably connected to the outer side of the transmission disc (6). The end of the linkage rod (8) away from the transmission disc (6) is rotatably connected to the drive plate (11). The output end of the servo motor (4) is fixed to the transmission rod (13).
3. A tea drying box according to claim 2, characterized in that, The connection point between the transmission disc (6) and the linkage rod (8) is offset from the center of the transmission disc (6).
4. The tea drying oven according to claim 2, wherein The inner side of the drive barrel (12) is provided with a limiting mechanism for positioning the placement tray (14). The limiting mechanism includes a pin (15) and a spring (16). Limiting grooves are provided at all four ends of the inner side of the drive barrel (12). Pins (15) are slidably connected to all four ends of the inner side of the placement tray (14). One end of the pin (15) is slidably connected to the corresponding limiting groove. A spring (16) is sleeved on the outer side of the pin (15).
5. A tea drying cabinet as claimed in claim 4, wherein, One end of the spring (16) is fixed to the pin (15), and the other end of the spring (16) is fixed to the placement plate (14).
6. A tea drying box according to claim 5, characterized in that, The drying box (1) is equipped with exhaust fans (7) at both ends on the other side, and the drying box (1) is fixed with support columns (3) at all four ends at the bottom.
Citation Information
Patent Citations
Battery cover plate and pole riveting device and battery cover plate assembling production line
CN220806138U
