An automatic tea-drying and temperature-controlled device

By using solar heating components and an automated control system, the problem of low temperature control accuracy in tea leaf spreading has been solved, achieving efficient and automated spreading and ensuring consistent tea quality.

CN224455206UActive Publication Date: 2026-07-03SICHUAN PEONY FAIRY AGRICULTURAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN PEONY FAIRY AGRICULTURAL TECHNOLOGY CO LTD
Filing Date
2025-10-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing tea-drying temperature control equipment has low temperature control accuracy and low automation, requiring a lot of manual intervention and resulting in low drying efficiency.

Method used

An automated system consisting of solar heating components, temperature sensors, and controllers, combined with cylinder-driven spreading plates and air intake adjustment components, automatically adjusts the spreading temperature and airflow to ensure that the tea leaves are spread out within the optimal temperature range.

Benefits of technology

The process of tea leaf spreading and drying has been automated, with temperature control accuracy improved to ±0.5℃, spreading and drying efficiency increased, tea quality consistency improved, and manual intervention reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides an automatic tea-drying and temperature-controlled device, comprising a main component, inside which a tea-drying component is installed, and at the bottom of the main component, an air inlet regulating component is installed, and solar heating components are symmetrically installed on both sides of the bottom of the main component. The main component includes a housing, a controller, a temperature sensor, and a light sensor. A light sensor is installed on the top surface of the housing, a temperature sensor is installed inside the housing, and a controller is installed on the bottom front of the main component. This invention uses a first cylinder to push the tea-drying plate to the outside of the housing for drying, automatically realizing timed pushing and pulling of the tea leaves, and the tea-drying plate can be pulled out for cleaning. This invention uses a second cylinder's piston rod to drive a baffle, which controls the amount of hot air entering the housing from the heat collection tank, preventing temperature fluctuations from affecting tea quality and adapting to the drying needs of different tea varieties.
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Description

Technical Field

[0001] This utility model relates to the technical field of tea processing equipment, specifically to an automatic tea spreading and temperature control device. Background Technology

[0002] Withering is a crucial step in tea processing, requiring freshly picked tea leaves to be evenly spread out at a suitable temperature (usually 25-30℃) to allow moisture to evaporate slowly and maintain quality. Current methods for withering tea mostly involve natural spreading or simple shed-style spreading, which have the following shortcomings:

[0003] Relying on manual adjustment of ambient temperature results in low temperature control accuracy (temperature difference easily exceeds ±5℃), making it impossible to stably maintain the optimal drying temperature.

[0004] Some semi-automatic equipment only has basic heating functions but lacks an automatic adjustment mechanism, still requiring a lot of manual intervention, resulting in low tea drying efficiency. Therefore, an automatic tea drying and temperature control device is proposed. Utility Model Content

[0005] In view of this, the present invention provides an automatic tea spreading and temperature control device to solve or alleviate one of the technical problems of low temperature control accuracy and low automation in the existing technology of tea spreading and temperature control.

[0006] The technical solution of this utility model embodiment is implemented as follows: an automatic tea spreading and temperature control device includes a main component, a spreading component is installed inside the main component, an air inlet regulating component is installed at the bottom of the main component, and solar heating components are symmetrically installed on both sides of the bottom of the main component.

[0007] The main component includes a housing, a controller, a temperature sensor, and a light sensor. The light sensor is installed on the top surface of the housing, the temperature sensor is installed inside the housing, and the controller is installed on the bottom front of the main component.

[0008] Further preferred embodiment: The main body component also includes a door, an exhaust pipe and a vent. The door is hinged to one side of the box via a pin. Ventilation vents adapted to the solar heating component are symmetrically opened on both sides of the bottom of the box. An exhaust pipe is connected to the top of one side of the box.

[0009] A further preferred embodiment: the drying assembly includes a first cylinder, a connecting block, a drying plate, and a slide rail. The first cylinder is installed on the back of the box. Slide rails are symmetrically installed inside the box. The drying plate is slidably connected inside the slide rail. The piston rod of the first cylinder passes through one side of the box and is connected to one end of the drying plate through the connecting block.

[0010] Further preferred embodiment: The solar heating component includes a heat collection trough, a heat collection plate, a transparent acrylic plate, and an air inlet mesh. The heat collection trough is inclined, and a heat collection plate is installed on the inner bottom surface of the heat collection trough. A transparent acrylic plate is installed on the top of the heat collection trough, and air inlet meshes are symmetrically opened on the bottom sidewall of the heat collection trough.

[0011] A further preferred embodiment: a movable support assembly is installed at the bottom of the housing, the movable support assembly including a support base, adjusting bolts and casters, and casters are connected to the four corners of the bottom of the support base through adjusting bolts.

[0012] A further preferred embodiment: the air intake adjustment assembly includes a second cylinder, a baffle, a ventilation plate, and an air intake hole. The second cylinder is installed on the back of the housing. A ventilation plate is installed at the bottom of the housing. The baffle slides on the ventilation plate. The ventilation plate has air intake holes with progressively increasing diameters. The piston rod of the second cylinder passes through one side of the housing and is connected to one end of the baffle.

[0013] More preferably, the controller is electrically connected to the drying assembly, the air intake adjustment assembly, the temperature sensor, and the light sensor, respectively.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. The first cylinder of this utility model pushes the spreading plate to the outside of the box for spreading and drying, automatically realizing the timed pushing and pulling of tea leaves, and the spreading plate can be pulled out for cleaning;

[0016] 2. This utility model can control the amount of hot air entering the box from the heat collection tank by driving the baffle through the piston rod of the second cylinder, so as to avoid temperature fluctuations affecting the quality of tea and adapt to the drying needs of different varieties of tea (such as green tea and black tea).

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the present invention;

[0020] Figure 2 This is a structural diagram of the drying assembly of this utility model;

[0021] Figure 3 This is a structural diagram of the solar heating component of this utility model;

[0022] Figure 4 This is a structural diagram of the mobile support component of this utility model;

[0023] Figure 5 This is a schematic diagram of the air intake adjustment component of this utility model.

[0024] Reference numerals: 10, Main component; 101, Cabinet; 102, Controller; 103, Cabinet door; 104, Temperature sensor; 105, Light sensor; 106, Exhaust duct; 107, Ventilation opening;

[0025] 20. Spreading and drying assembly; 201. First cylinder; 202. Connecting block; 203. Spreading and drying plate; 204. Slide rail;

[0026] 30. Solar heating module; 301. Heat collection trough; 302. Heat collection plate; 303. Transparent acrylic sheet; 304. Air inlet mesh;

[0027] 40. Movable support assembly; 401. Support base; 402. Adjusting bolt; 403. Casters;

[0028] 50. Air intake adjustment assembly; 501. Second cylinder; 502. Baffle; 503. Ventilation plate; 504. Air intake hole. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive. Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0030] like Figures 1-5 As shown, this utility model embodiment provides an automatic tea spreading and temperature control device, including a main component 10, a spreading component 20 installed inside the main component 10, an air inlet regulating component 50 installed at the bottom of the main component 10, and solar heating components 30 symmetrically installed on both sides of the bottom of the main component 10.

[0031] The main component 10 includes a housing 101, a controller 102, a temperature sensor 104, and a light sensor 105. The light sensor 105 is installed on the top surface of the housing 101, the temperature sensor 104 is installed inside the housing 101, and the controller 102 is installed on the bottom front of the main component 10.

[0032] The cabinet 101 is made of stainless steel and has a vertical cabinet structure with an exhaust pipe 106 on the top.

[0033] In this embodiment, specifically: the main component 10 also includes a door 103, an exhaust pipe 106, and a vent 107. The door 103 is hinged to one side of the housing 101 by a pin. The bottom two sides of the housing 101 are symmetrically provided with vents 107 adapted to the solar heating component 30. The top of one side of the housing 101 is connected to the exhaust pipe 106. When the internal heat of the housing 101 rises, the humid air will be discharged along the exhaust pipe 106.

[0034] In this embodiment, specifically: the spreading and drying assembly 20 includes a first cylinder 201, a connecting block 202, a spreading plate 203, and a slide rail 204. The first cylinder 201 is installed on the back of the housing 101. The slide rails 204 are symmetrically installed inside the housing 101. The spreading plate 203 is slidably connected inside the slide rails 204. The piston rod of the first cylinder 201 passes through one side of the housing 101 and is connected to one end of the spreading plate 203 through the connecting block 202. The spreading plate 203 adopts a food-grade stainless steel mesh structure (mesh diameter 2-3mm) and has a 10cm high edge to prevent tea leaves from falling. The spreading plate 203 has slide rails 204 on both sides, which are slidably connected to the spreading plate 203 and can be pulled out for easy cleaning.

[0035] In this embodiment, specifically: the solar heating component 30 includes a heat collection tank 301, a heat collection plate 302, a transparent acrylic plate 303, and an air inlet mesh 304. The heat collection tank 301 is inclined, and the heat collection plate 302 is installed on the bottom surface of the inner side of the heat collection tank 301. The transparent acrylic plate 303 is installed on the top of the heat collection tank 301. The air inlet mesh 304 is symmetrically opened on the bottom side wall of the heat collection tank 301. The heat collection tank 301 is inclined and has a black heat collection plate 302 inside. When there is continuous sunlight, the temperature inside the heat collection tank 301 rises, which allows the heated air to enter the interior of the box 101 to dry the tea leaves inside the box 101.

[0036] In this embodiment, specifically: a movable support assembly 40 is installed at the bottom of the housing 101. The movable support assembly 40 includes a support base 401, adjusting bolts 402, and casters 403. The four corners of the bottom of the support base 401 are connected to casters 403 by adjusting bolts 402. The device can be moved to any position by the support base 401 and the casters 403. The spacing between the casters 403 can be adjusted by adjusting bolts 402.

[0037] In this embodiment, specifically: the air intake adjustment component 50 includes a second cylinder 501, a baffle 502, a ventilation plate 503, and an air intake hole 504. The second cylinder 501 is installed on the back of the housing 101. The ventilation plate 503 is installed at the bottom of the interior of the housing 101. The baffle 502 slides on the ventilation plate 503. The ventilation plate 503 has air intake holes 504 with progressively increasing diameters. The piston rod of the second cylinder 501 passes through one side of the housing 101 and is connected to one end of the baffle 502. The ventilation plate 503 has air intake holes 504 with progressively increasing diameters. The piston rod of the second cylinder 501 drives the baffle 502 to move on the surface of the ventilation plate 503, thereby controlling the amount of hot air entering the housing 101 from the heat collection tank 301.

[0038] In this embodiment, specifically, the controller 102 is electrically connected to the drying assembly 20, the air inlet regulating assembly 50, the temperature sensor 104, and the light sensor 105. The temperature sensor 104 is a DS18B20 digital sensor, with one installed below each drying plate 203, used to detect the temperature of the drying area in real time, with a detection accuracy of ±0.5℃. The controller 102 is an STM32F103 microcontroller, installed on the lower front of the housing 101, and electrically connected to the drying assembly 20, the air inlet regulating assembly 50, the temperature sensor 104, and the light sensor 105, receiving temperature signals and outputting control commands.

[0039] The mobile support assembly 40 moves the device to a designated or sunny location, pulls out the spreading plate 203, spreads the fresh tea leaves evenly on the spreading plate 203 (spreading thickness 3-5cm), pushes the spreading plate 203 back, opens the box door 103, and sets the spreading temperature to 28℃ and the working time to 4h.

[0040] The first cylinder 201 pushes the drying plate 203 to the outside of the box 101. The drying plate 203 is provided with slide rails 204 on both sides, which are slidably connected to the drying plate 203.

[0041] The tea leaves after being spread out to dry have a uniform moisture content (difference < 0.5%), with no localized mold or excessive dryness;

[0042] If there is insufficient sunlight, the drying plate 203 can be pulled into the box 101. The piston rod of the second cylinder 501 drives the baffle 502 to move on the surface of the ventilation plate 503, thereby controlling the amount of hot air entering the box 101 from the heat collection tank 301.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] 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 person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all 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 leaf automatic spreading and airing temperature control device comprising a main body assembly (10), characterized in that: The main body component (10) is equipped with a drying component (20), and the bottom of the main body component (10) is equipped with an air intake adjustment component (50). The bottom sides of the main body component (10) are symmetrically equipped with solar heating components (30). The main component (10) includes a housing (101), a controller (102), a temperature sensor (104), and a light sensor (105). The light sensor (105) is installed on the top surface of the housing (101), the temperature sensor (104) is installed inside the housing (101), and the controller (102) is installed on the bottom front of the main component (10).

2. The tea leaf automatic spreading and airing temperature control device according to claim 1, characterized in that: The main component (10) also includes a door (103), an exhaust pipe (106) and a vent (107). The door (103) is hinged to one side of the box (101) by a pin. The bottom sides of the box (101) are symmetrically provided with vents (107) adapted to the solar heating component (30). The exhaust pipe (106) is connected to the top of one side of the box (101).

3. The tea leaf automatic spreading and airing temperature control device according to claim 1, characterized in that: The drying assembly (20) includes a first cylinder (201), a connecting block (202), a drying plate (203), and a slide rail (204). The first cylinder (201) is installed on the back of the box (101). The slide rails (204) are symmetrically installed inside the box (101). The drying plate (203) is slidably connected inside the slide rail (204). The piston rod of the first cylinder (201) passes through one side of the box (101) and is connected to one end of the drying plate (203) through the connecting block (202).

4. The tea leaf automatic spreading and airing temperature control device according to claim 1, characterized in that: The solar heating component (30) includes a heat collection trough (301), a heat collection plate (302), a transparent acrylic plate (303), and an air inlet mesh (304). The heat collection trough (301) is inclined. The heat collection plate (302) is installed on the bottom surface of the inner side of the heat collection trough (301). The transparent acrylic plate (303) is installed on the top of the heat collection trough (301). The air inlet mesh (304) is symmetrically opened on the bottom side wall of the heat collection trough (301).

5. The tea leaf automatic spreading and airing temperature control device according to claim 1, characterized in that: The bottom of the housing (101) is equipped with a movable support assembly (40), which includes a support base (401), an adjusting bolt (402) and casters (403). The four corners of the bottom of the support base (401) are connected to casters (403) by adjusting bolts (402).

6. The tea leaf automatic spreading and airing temperature control device according to claim 1, characterized in that: The air intake adjustment assembly (50) includes a second cylinder (501), a baffle (502), a ventilation plate (503), and an air intake hole (504). The second cylinder (501) is installed on the back of the housing (101). The ventilation plate (503) is installed at the bottom of the interior of the housing (101). The baffle (502) slides on the ventilation plate (503). The ventilation plate (503) has air intake holes (504) with progressively increasing diameters. The piston rod of the second cylinder (501) passes through one side of the housing (101) and is connected to one end of the baffle (502).

7. The tea leaf automatic spreading and airing temperature control device according to claim 6, characterized in that: The controller (102) is electrically connected to the drying assembly (20), the air intake adjustment assembly (50), the temperature sensor (104), and the light sensor (105), respectively.