A tea leaf making green device

By designing a tea processing device, the rotation of the shaking basket is achieved through a drive mechanism and a transmission mechanism, simulating the traditional manual shaking action. This solves the problem of low efficiency in manual shaking and improves the efficiency and quality of tea processing.

CN224330270UActive Publication Date: 2026-06-09ZHAOPING COUNTY CHESS MOUNTAIN TEA CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHAOPING COUNTY CHESS MOUNTAIN TEA CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The current manual shaking process for tea processing is inefficient, especially in large-scale production where labor costs are high, making it difficult to meet the demands of high-efficiency production.

Method used

Design a tea processing device, including a base, a turntable, and a shaking basket. The shaking basket is rotated periodically by a drive mechanism and a transmission mechanism to simulate the traditional hand shaking action, promote the tumbling and collision of tea leaves, and incorporate a perforated design to promote enzymatic oxidation reaction.

Benefits of technology

It improves the efficiency and quality of tea processing, promotes the formation of aroma and color, reduces labor costs, and achieves uniform transformation and purification of tea.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of tea making green device, it is related to tea processing equipment technical field, including base, the base is equipped with slope, the slope is rotatably connected with carousel, driving mechanism is installed in the base, the driving mechanism is connected with carousel transmission by transmission mechanism, the transmission mechanism is installed in base, fixed mounting has shell on the slope, the shell is equipped with shaking basket, the shaking basket is obliquely arranged, the shaking basket bottom is equipped with connecting piece, the connecting piece is rotatably connected on shell, connecting piece input end is connected with carousel through shell, the utility model is rotated periodically in shell by shaking basket, so that tea is constantly rolling, collision in making green process, promote leaf edge cell breakage, accelerate enzyme oxidation reaction, to improve aroma formation and color conversion.
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Description

Technical Field

[0001] This utility model relates to the field of tea processing equipment technology, and in particular to a tea processing device. Background Technology

[0002] "Making green" is a special process in the initial processing of oolong tea, also known as "shaking green." It consists of two alternating and repeated processes: shaking and air-drying. During shaking, the leaves collide with each other, damaging the leaf edge cells and causing enzymatic browning. Simultaneously, it enhances the water-carrying capacity of the vascular tissue, accelerating the penetration of water from the veins into the leaf mesophyll cells, allowing the leaves to regain their swollen state (a process called "returning to green" or "rejuvenation"). Shaking lasts 3-5 minutes, followed by air-drying. Air-drying is also called "resting," "waiting for green," or "spreading green." After a period of air-drying, the leaves wither again, a process called "reducing green." Shaking and air-drying are then repeated 5-7 times. The green color fades, the red edges deepen to a vermilion red, the veins become transparent, the leaves become spoon-shaped, the appearance is firm, the feel is soft, and a rich floral aroma is emitted.

[0003] However, the current method of processing tea leaves involves placing them in bamboo sieves and shaking them manually, which is inefficient and requires a high level of physical strength. This is especially true for large-scale production, where labor costs increase significantly. Utility Model Content

[0004] To overcome at least one of the defects described in the prior art, this utility model provides a tea processing device to solve problems such as low efficiency of manual shaking.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A tea processing device includes a base with an inclined surface. A turntable is rotatably connected to the inclined surface. A drive mechanism is installed inside the base and is connected to the turntable via a transmission mechanism. The transmission mechanism is installed inside the base. A housing is fixedly installed on the inclined surface. A shaking basket is provided inside the housing. The shaking basket is inclined and has a connector at its bottom. The connector is rotatably connected to the housing, and its input end passes through the housing and connects to the turntable.

[0007] With the above scheme, the drive mechanism drives the turntable to rotate through the transmission mechanism. The turntable drives the shaking basket through the connecting parts, so that the shaking basket rotates periodically inside the shell. This can simulate the action of traditional hand shaking, which is conducive to the uniform transformation of substances inside the tea leaves and improves the quality of tea processing. The shaking basket is tilted and rotated, so that the tea leaves are constantly tumbling and colliding during the processing, which promotes the damage of leaf edge cells and accelerates the enzymatic oxidation reaction, thereby enhancing the formation of aroma and color transformation. When the tea leaves need to be dried, the rotation of the shaking basket can be stopped.

[0008] Furthermore, the housing includes a fixed shell and a movable shell. The fixed shell is fixedly installed on the inclined surface, with one side of the fixed shell on the inclined surface as its bottom side. The fixed shell has openings on its front and top sides. The movable shell is rotatably connected to the fixed shell via a hinge and is located at the front opening of the fixed shell.

[0009] The above-mentioned further solution involves an opening on the top, which facilitates observation of the tea leaves inside the shaking basket.

[0010] Furthermore, the connector is circular, and a limiting platform is provided on the connector. A through groove is provided on the bottom side wall of the fixed shell, and a limiting groove is provided in the through groove. The connector is rotatably connected in the through groove, and the limiting platform is rotatably connected in the limiting groove.

[0011] Through the above-mentioned further solutions, the design of the limiting platform and the limiting groove ensures the accurate positioning of the connecting parts in the through groove and restricts any movement of them except in the predetermined rotation direction, thereby enhancing the structural stability of the entire cradle and its connecting parts.

[0012] Furthermore, the cradle is provided with several perforations.

[0013] Through the above-mentioned further solutions, the perforations allow for free air circulation, which helps to maintain good ventilation of the tea leaves during the withering process. When the withering basket rotates or swings, the presence of perforations changes the friction between the tea leaves and between the tea leaves and the basket, which helps the tea leaves to roll and collide better. This promotes moderate damage to the edge cells of the tea leaves, which is conducive to the occurrence of enzymatic oxidation reactions and promotes the development of the aroma and color of the tea leaves. As the withering process proceeds, some fine dust or debris will be separated from the tea leaves. The perforations can allow light impurities to fall off naturally by gravity, thereby purifying the tea leaves.

[0014] Furthermore, the cradle is pyramidal in shape, and when any of its cone surfaces rotates to its lowest point, the cone surface is in a horizontal state.

[0015] Through the above-mentioned further scheme, when the shaking basket rotates, the tea leaves in different positions will naturally roll and mix with the change of the cone surface, which helps the tea leaves to have full contact and interaction, and promotes moderate damage to the edge cells of the tea leaves.

[0016] Furthermore, the turntable is provided with a limiting boss, the inclined surface is provided with a through hole, the through hole is connected to the interior of the base, the through hole is provided with a limiting groove, the turntable is rotatably connected in the through hole, the limiting boss is rotatably connected in the limiting groove, the turntable is provided with a plurality of evenly arranged slots on the inner and outer side of the turntable, and the end of the connector away from the cradle is provided with a plurality of evenly arranged levers, the levers being fitted into the slots.

[0017] Through the above-mentioned further solutions, the limiting boss and limiting groove ensure that the turntable will not undergo lateral displacement or shaking during rotation, thus ensuring the stability of the entire device during operation. The engagement of the slot and the lever ensures the connection strength between the cradle and the turntable, preventing loosening or detachment caused by rotational force, and facilitating installation and disassembly.

[0018] Furthermore, the transmission mechanism includes a first conical tooth, a second conical tooth, a third conical tooth, a first connecting frame, a second connecting frame, and a fixed rod. The fixed rod is fixedly installed inside the base. The first connecting frame and the second connecting frame are both U-shaped. The opposite side walls of the first connecting frame and the second connecting frame are rotatably connected to the fixed rod. The other side walls of the first connecting frame and the second connecting frame are rotatably connected to the first conical tooth and the second conical tooth respectively through a first rotating shaft and a second rotating shaft. The third conical tooth is rotatably connected to the fixed rod and is located between the opposite side walls of the first connecting frame and the second connecting frame. The third conical tooth meshes with the first conical tooth and meshes with the second conical tooth.

[0019] With the above further solution, since the other sidewalls of the first connecting frame and the second connecting frame are respectively connected to the first conical tooth and the second conical tooth through the first rotating shaft and the second rotating shaft, and both the first connecting frame and the second connecting frame are rotatably connected to the fixed rod, the first conical tooth and the second conical tooth can be adjusted in angle as needed, thereby facilitating connection with the turntable on the inclined surface.

[0020] Furthermore, the first rotating shaft is connected to the first conical tooth, which has a locking tooth that passes through the first connecting frame at one end. The turntable has a tooth groove on its inner side, and the locking tooth is fitted into the tooth groove.

[0021] Through the above-mentioned further solutions, the meshing method of the locking teeth and the tooth groove ensures that the power transmitted from the first conical teeth through the first rotating shaft can be efficiently and accurately transmitted to the turntable. The locking teeth and the tooth groove are separable fitting structures, which makes the connection between the turntable and the transmission mechanism have good modular characteristics, which facilitates quick disassembly and maintenance.

[0022] Furthermore, the second rotating shaft is fixedly connected to the output end of the drive mechanism by passing through the second connecting frame at one end of the second conical tooth.

[0023] In summary, the tea processing device provided by this utility model has the following technical effects:

[0024] 1. The drive mechanism drives the turntable to rotate through the transmission mechanism. The turntable drives the shaking basket through the connecting parts, so that the shaking basket rotates periodically inside the shell. This can simulate the action of traditional hand shaking, which is conducive to the uniform transformation of substances inside the tea leaves and improves the quality of tea processing.

[0025] 2. The tilted setting of the shaking basket, combined with rotation, causes the tea leaves to tumble and collide continuously during the withering process, promoting cell damage at the leaf edges and accelerating enzymatic oxidation reactions, thereby enhancing aroma formation and color transformation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the tilted structure of the cradle of this utility model;

[0029] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0030] Figure 4 For the present utility model Figure 3 A magnified view of the structure at point A in the middle;

[0031] Figure 5 This is a schematic diagram of the cradle structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the turntable slot of this utility model;

[0033] Figure 7 This is a schematic diagram of the rotary tooth groove structure of this utility model;

[0034] Figure 8 This is a partial structural schematic diagram of the present invention;

[0035] Figure 9 This is a schematic diagram of the transmission mechanism structure of this utility model.

[0036] In the diagram: 1. Base; 11. Inclined surface; 111. Through hole; 112. Limiting groove; 2. Turntable; 21. Limiting boss; 22. Slot; 23. Gear groove; 3. Drive mechanism; 4. Transmission mechanism; 41. First conical tooth; 411. First rotating shaft; 412. Slotting tooth; 42. Second conical tooth; 421. Second rotating shaft; 43. Third conical tooth; 44. First connecting frame; 45. Second connecting frame; 46. Fixing rod; 5. Housing; 51. Fixing housing; 511. Through groove; 512. Limiting groove; 52. Movable housing; 6. Cradle; 61. Connector; 611. Limiting platform; 612. Slotting rod; 62. Hole. Detailed Implementation

[0037] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] Example:

[0041] refer to Figure 1 As shown, a tea processing device includes a base 1 with an inclined surface 11 on the base 1. A fixed shell 51 is fixedly installed on the inclined surface 11. The fixed shell 51 has its bottom side on the side fixed on the inclined surface 11. The fixed shell 51 has openings on its front and top sides. A movable shell 52 is rotatably connected to the fixed shell 51 via a hinge and is located at the front opening of the fixed shell 51, forming a shell 5 with an opening at the top. A shaking basket 6 is provided inside the shell 5, which allows for observation of the tea leaves inside the shaking basket 6 from the top.

[0042] refer to Figures 1-5As shown, the cradle 6 is inclined, and a connector 61 is provided at the bottom of the cradle 6. The connector 61 is circular and has a limiting platform 611. A through groove 511 is provided on the bottom side wall of the fixed shell 51, and a limiting groove 512 is provided in the through groove 511. The connector 61 is rotatably connected in the through groove 511, and the limiting platform 611 is rotatably connected in the limiting groove 512. The bottom of the cradle 6 is rotatably connected to the bottom side wall of the fixed shell 51 through the connector 61, so that the cradle 6 is perpendicular to the inclined plane 11. The design of the limiting platform 611 and the limiting groove 512 ensures that the connector 61 is accurately positioned in the through groove 511 and restricts its movement in any direction other than the predetermined rotation direction, thereby enhancing the structural stability of the entire cradle 6 and its connecting parts.

[0043] The shaking basket 6 has several perforations 62, which allow air to circulate freely, helping to maintain good ventilation for the tea leaves during the withering process. When the shaking basket 6 rotates or swings, the presence of perforations 62 changes the friction between the tea leaves and between the tea leaves and the basket body, which helps the tea leaves to roll and collide better, promotes moderate damage to the edge cells of the tea leaves, facilitates the occurrence of enzymatic oxidation reactions, and promotes the development of the aroma and color of the tea leaves. As the shaking process proceeds, some fine dust or debris will be separated from the tea leaves. The perforations 62 can allow light impurities to fall off naturally by gravity, thereby purifying the tea leaves.

[0044] Among them, the shaking basket 6 is pyramidal in shape, and when any of its cone surfaces rotates to the lowest point, the cone surface is in a horizontal state. When the shaking basket 6 rotates, the tea leaves in different positions will naturally roll and mix with the changes in the cone surface, which helps the tea leaves to have full contact and interaction, and promotes the appropriate damage of the edge cells of the tea leaves.

[0045] Further explanation of this embodiment: the more sides a pyramid has, the smaller the inclination angle between its cone surfaces; the fewer sides a pyramid has, the larger the inclination angle between its cone surfaces. Different types or processing stages of tea can be processed by using shaking baskets 6 with different numbers of sides. For example, in the light fermentation stage, a gentler rolling motion may be needed to avoid excessive damage to the tea leaves; while in the later stages, the inclination angle between the cone surfaces can be increased to enhance the turning effect.

[0046] refer to Figure 3 , Figure 4 and Figure 6As shown, a turntable 2 is rotatably connected to the inclined surface 11. The turntable 2 is provided with a limiting boss 21. The inclined surface 11 is provided with a through hole 111, which communicates with the interior of the base 1. A limiting groove 112 is provided in the through hole 111. The turntable 2 is rotatably connected in the through hole 111, and the limiting boss 21 is rotatably connected in the limiting groove 112. The turntable 2 has multiple evenly arranged slots 22 on its inner and outer side. The end of the connector 61 away from the cradle 6 is provided with several evenly arranged levers 612. The levers 612 are fitted into the slots 22. The limiting boss 21 and the limiting groove 112 ensure that the turntable 2 will not have lateral displacement or shaking during rotation, thus ensuring the stability of the entire device during operation. The fitting of the slots 22 and the levers 612 ensures the connection strength between the cradle 6 and the turntable 2, avoiding loosening or separation due to rotational force, and facilitating installation and disassembly.

[0047] refer to Figure 2 , Figure 8 and Figure 9 As shown, a fixing rod 46 is fixedly installed inside the base 1. A first connecting frame 44 and a second connecting frame 45 are rotatably connected to the fixing rod 46. Both the first connecting frame 44 and the second connecting frame 45 are U-shaped. The opposite side walls of the first connecting frame 44 and the second connecting frame 45 are rotatably connected to the fixing rod 46. The other side walls of the first connecting frame 44 and the second connecting frame 45 are rotatably connected to a first conical tooth 41 and a second conical tooth 42 respectively through a first rotating shaft 411 and a second rotating shaft 421. The fixing rod 46 is located on the first connecting frame 44 and the second connecting frame 45. A third conical tooth 43 is rotatably connected between the two side walls. The third conical tooth 43 is engaged with the first conical tooth 41 and the second conical tooth 42 respectively. Since the other side walls of the first connecting frame 44 and the second connecting frame 45 are connected to the first conical tooth 41 and the second conical tooth 42 respectively through the first rotating shaft 411 and the second rotating shaft 421, the first connecting frame 44 and the second connecting frame 45 are rotatably connected to the fixed rod 46, so that the first conical tooth 41 and the second conical tooth 42 can be adjusted at the required angle, thereby facilitating connection with the turntable 2 on the inclined surface 11.

[0048] refer to Figure 7 , Figure 8 and Figure 9 As shown, the first rotating shaft 411 is connected to the first conical tooth 41, which passes through the first connecting frame 44 and has a retaining tooth 412. The turntable 2 has a tooth groove 23 on its inner side, and the retaining tooth 412 is fitted into the tooth groove 23. The meshing method of the retaining tooth 412 and the tooth groove 23 ensures that the power transmitted from the first conical tooth 41 through the first rotating shaft 411 can be efficiently and accurately transmitted to the turntable 2. The retaining tooth 412 and the tooth groove 23 are separable fitting structures, which makes the connection between the turntable 2 and the transmission mechanism 4 have good modular characteristics and facilitates quick disassembly and maintenance.

[0049] The second rotating shaft 421 is connected to the second conical tooth 42, which passes through the second connecting frame 45 and is fixedly connected to the output end of the drive mechanism 3. The drive mechanism 3 is installed in the base 1.

[0050] Among them, the drive mechanism 3 is a motor.

[0051] It should be noted that both the first connecting frame 44 and the second connecting frame 45 can only be rotatably connected to the fixed rod 46 and cannot slide along the fixed rod 46.

[0052] The working principle of this utility model is as follows: the driving mechanism 3 drives the second conical tooth 42 to rotate, the second conical tooth 42 drives the third conical tooth 43 to rotate, the third conical tooth 43 drives the first conical tooth 41 to rotate, the first conical tooth 41 drives the turntable 2 to rotate, the turntable 2 drives the connecting piece 61 to rotate, the connecting piece 61 drives the shaking basket 6 to rotate, the shaking basket 6 rotates, causing the tea leaves inside to tumble and collide continuously, promoting the damage of leaf edge cells, accelerating the enzymatic oxidation reaction, thereby enhancing the formation of aroma and the transformation of color.

[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tea processing device, comprising a base (1), characterized in that: The base (1) is provided with an inclined surface (11), and a turntable (2) is rotatably connected to the inclined surface (11). A drive mechanism (3) is installed inside the base (1). The drive mechanism (3) is connected to the turntable (2) through a transmission mechanism (4). The transmission mechanism (4) is installed inside the base (1). A housing (5) is fixedly installed on the inclined surface (11). A shaking basket (6) is provided inside the housing (5). The shaking basket (6) is inclined. A connector (61) is provided at the bottom of the shaking basket (6). The connector (61) is rotatably connected to the housing (5). The input end of the connector (61) passes through the housing (5) and is connected to the turntable (2).

2. The tea processing device according to claim 1, characterized in that: The housing (5) includes a fixed housing (51) and a movable housing (52). The fixed housing (51) is fixedly installed on the inclined surface (11). The fixed housing (51) has its bottom side on the side fixed on the inclined surface (11). The fixed housing (51) has openings on its front and top sides. The movable housing (52) is rotatably connected to the fixed housing (51) by a hinge and is located at the front opening of the fixed housing (51).

3. The tea processing device according to claim 2, characterized in that: The connector (61) is circular and has a limiting platform (611). The bottom side wall of the fixed shell (51) has a through groove (511) and a limiting groove (512) inside the through groove (511). The connector (61) is rotatably connected to the through groove (511) and the limiting platform (611) is rotatably connected to the limiting groove (512).

4. The tea processing device according to claim 1, characterized in that: The cradle (6) has several perforations (62).

5. The tea processing device according to claim 1, characterized in that: The cradle (6) is pyramidal in shape, and when any of its cone surfaces rotates to its lowest point, the cone surface is in a horizontal state.

6. The tea processing device according to claim 3, characterized in that: The turntable (2) is provided with a limiting boss (21), and the inclined surface (11) is provided with a through hole (111). The through hole (111) is connected to the interior of the base (1). The through hole (111) is provided with a limiting groove (112). The turntable (2) is rotatably connected in the through hole (111). The limiting boss (21) is rotatably connected in the limiting groove (112). The turntable (2) is provided with a plurality of evenly arranged slots (22) on the inner and outer side. The end of the connector (61) away from the cradle (6) is provided with a plurality of evenly arranged levers (612). The levers (612) are fitted into the slots (22).

7. The tea processing device according to claim 6, characterized in that: The transmission mechanism (4) includes a first conical tooth (41), a second conical tooth (42), a third conical tooth (43), a first connecting frame (44), a second connecting frame (45), and a fixed rod (46). The fixed rod (46) is fixedly installed inside the base (1). Both the first connecting frame (44) and the second connecting frame (45) are U-shaped. The opposite side walls of the first connecting frame (44) and the second connecting frame (45) are rotatably connected to the fixed rod (46). The first conical tooth (41) and the second conical tooth (42) are rotatably connected to the other side wall of the second connecting frame (45) via the first rotating shaft (411) and the second rotating shaft (421), respectively. The third conical tooth (43) is rotatably connected to the fixed rod (46) and located in the middle of the opposite side walls of the first connecting frame (44) and the second connecting frame (45). The third conical tooth (43) is engaged with the first conical tooth (41) and the third conical tooth (43) is engaged with the second conical tooth (42).

8. A tea processing device according to claim 7, characterized in that: The first rotating shaft (411) is connected to the first conical tooth (41) at one end, which passes through the first connecting frame (44) and is provided with a locking tooth (412). The turntable (2) is provided with a tooth groove (23) on the side facing inward, and the locking tooth (412) is fitted into the tooth groove (23).

9. A tea processing device according to claim 7, characterized in that: The second rotating shaft (421) is connected to the second conical tooth (42) through the second connecting frame (45) and fixedly connected to the output end of the drive mechanism (3).