A low-temperature drying device for Coptis chinensis
By using the duct rotary drum, air outlet spiral tube structure, and flap design, the problems of uneven hot air distribution and insufficient material turning in the Coptis chinensis drying equipment have been solved, realizing an efficient and convenient Coptis chinensis drying process and improving the operability and temperature control accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENPING COUNTY DAFUXI AGRICULTURE CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-09
AI Technical Summary
Existing Coptis chinensis drying equipment has a fixed hot air distribution range and insufficient material tumbling, resulting in low drying efficiency, cumbersome feeding and discharging operations, and large vibrations from the motor drive, which affects temperature control accuracy.
The structure uses a duct to connect the rotating drum and the exhaust screw, combined with a motor to drive the rotating drum to achieve all-round mixing and drying. The flip-plate structure facilitates the loading and unloading of materials, optimizing the material feeding and discharging design.
It achieves comprehensive drying of Coptis chinensis, improves drying efficiency, simplifies material loading and unloading operations, reduces the impact of vibration, and ensures temperature control accuracy.
Smart Images

Figure CN224340562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of low-temperature drying equipment for Coptis chinensis, and in particular to a low-temperature drying equipment for Coptis chinensis. Background Technology
[0002] Currently, Coptis chinensis, as a commonly used Chinese medicinal herb, needs to undergo low-temperature drying during processing to retain its active ingredients and meet the standardization requirements of modern Chinese medicine production.
[0003] To address the aforementioned drying requirements for Coptis chinensis, some drying equipment solutions have emerged in existing technologies. Conventional equipment often employs a design with fixed hot air ducts and a static drying chamber. Hot air is evenly distributed through pre-set holes, and the material is spread flat on a screen for drying. Some improved equipment incorporates a rotating screen structure, causing a certain displacement of the Coptis chinensis during the drying process.
[0004] Existing drying equipment has significant limitations: the hot air distribution range is fixed, and insufficient material tumbling leads to fluctuations in drying efficiency. The narrow inlet and outlet designs make batch loading and unloading cumbersome. The direct motor-driven screen structure results in excessive vibration, affecting precise temperature control. These defects collectively restrict the drying quality of heat-sensitive medicinal materials like Coptis chinensis. Therefore, a low-temperature drying device for Coptis chinensis is proposed to address these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a low-temperature drying device for Coptis chinensis, aiming to improve the low efficiency of low-temperature drying of Coptis chinensis in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a low-temperature drying device for Coptis chinensis, comprising an air duct, a side plate sleeved on the outside of the air duct, a drying drum fixedly connected to the outside of the side plate, a flap installed on the outside of the drying drum, two bottom plates at the bottom of the drying drum, an exhaust plate fixedly connected to the side of the drying drum, a support plate fixedly connected to the outside of the exhaust plate, a motor installed on the outside of the exhaust plate, and a drying assembly inside the drying drum;
[0007] As a further description of the above technical solution:
[0008] The drying assembly includes a rotating drum, with multiple air outlet columns fixedly connected to the outer side of the rotating drum. An air outlet spiral tube is fixedly connected to the end of each air outlet column away from the rotating drum. Multiple air holes are provided on the outer side of the air outlet column and the air outlet spiral tube.
[0009] As a further description of the above technical solution:
[0010] One end of the air duct is fixedly connected to a connecting pipe, and the inner side of the connecting pipe away from the air duct is rotatably connected to the outer side of the rotating cylinder.
[0011] As a further description of the above technical solution:
[0012] The drying drum is rotatably connected to a rotating shaft inside, and the outer side of the rotating shaft is fixedly connected to the side end of the flap.
[0013] As a further description of the above technical solution:
[0014] A handle is installed on the outside of the flap, and multiple exhaust ports are opened inside the exhaust plate;
[0015] As a further description of the above technical solution:
[0016] The top of the support plate abuts against the outside of the motor;
[0017] As a further description of the above technical solution:
[0018] The output end of the motor is fixedly connected to the end of the rotating drum away from the air duct.
[0019] As a further description of the above technical solution:
[0020] The two ends of the rotating drum are respectively rotatably connected inside the side plate and the exhaust plate.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, air is input through the air duct, and the air is transmitted to the air outlet column and air outlet screw tube through the rotating drum. At the same time, the motor runs, and the output end of the motor drives the rotating drum to rotate. The rotating drum drives the air outlet column and air outlet screw tube to rotate. The rotation of the air outlet column and air outlet screw tube can stir and turn the Coptis chinensis, realizing the effect of large-scale air outlet and all-round drying of Coptis chinensis.
[0023] 2. In this utility model, when drying Coptis chinensis, pulling the handle causes the flip plate to rotate via the shaft, which can quickly open the flip plate and quickly load a large area of Coptis chinensis into the equipment. The same applies when taking it out, achieving the effect of quick and convenient loading and unloading of Coptis chinensis. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a low-temperature drying device for Coptis chinensis proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the air outlet spiral tube of a low-temperature drying device for Coptis chinensis proposed in this utility model;
[0026] Figure 3This is a schematic diagram of the connecting pipe of a low-temperature drying device for Coptis chinensis proposed in this utility model.
[0027] Legend:
[0028] 1. Air duct; 2. Side panel; 3. Drying drum; 4. Flip plate; 5. Bottom plate; 6. Exhaust plate; 7. Support plate; 8. Motor; 9. Rotary drum; 10. Air outlet column; 11. Air outlet screw pipe; 12. Air hole; 13. Handle; 14. Exhaust port; 15. Connecting pipe; 16. Rotating shaft. Detailed Implementation
[0029] 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.
[0030] Reference Figures 1-3 This utility model provides an embodiment of a low-temperature drying device for Coptis chinensis, comprising an air duct 1, a side plate 2 sleeved on the outside of the air duct 1, a drying barrel 3 fixedly connected to the outside of the side plate 2, two bottom plates 5 at the bottom of the drying barrel 3, an exhaust plate 6 fixedly connected to the side of the drying barrel 3, a support plate 7 fixedly connected to the outside of the exhaust plate 6, a motor 8 installed on the outside of the exhaust plate 6, a drying assembly inside the drying barrel 3, the drying assembly comprising a rotating drum 9, multiple air outlet columns 10 fixedly connected to the outside of the rotating drum 9, an air outlet screw pipe 11 fixedly connected to the end of the air outlet column 10 away from the rotating drum 9, multiple air holes 12 on the outside of the air outlet column 10 and the air outlet screw pipe 11, a connecting pipe 15 fixedly connected to one end of the air duct 1, the inner side of the connecting pipe 15 away from the air duct 1 rotatably connected to the outside of the rotating drum 9, the top of the support plate 7 abutting the outside of the motor 8, the output end of the motor 8 fixedly connected to the end of the rotating drum 9 away from the air duct 1, and the two ends of the rotating drum 9 rotatably connected to the inside of the side plate 2 and the exhaust plate 6 respectively.
[0031] Specifically, when drying Coptis chinensis, air is input through air duct 1, and the air flows into air outlet column 10 and air outlet screw pipe 11 through rotating drum 9. The air is then ejected through air holes 12 of air outlet column 10 and air outlet screw pipe 11. At the same time, motor 8 is energized and rotates its output end. The output end of motor 8 drives rotating drum 9 to rotate, and rotating drum 9 drives air outlet column 10 and air outlet screw pipe 11 to rotate. The rotation of air outlet column 10 and air outlet screw pipe 11 stirs the Coptis chinensis in the equipment, which can achieve wide-range air outlet and all-round drying of Coptis chinensis.
[0032] Reference Figures 1-2A flap 4 is installed on the outside of the drying drum 3. A rotating shaft 16 is rotatably connected inside the drying drum 3. The outside of the rotating shaft 16 is fixedly connected to the side end of the flap 4. A handle 13 is installed on the outside of the flap 4. Multiple exhaust ports 14 are opened inside the exhaust plate 6.
[0033] Specifically, when assembling and removing dried Coptis chinensis, the handle 13 on the flap 4 can be pulled. The handle 13 drives the flap 4 to rotate via the shaft 16, which can quickly open the flap 4, allowing for the rapid assembly or removal of Coptis chinensis over a large area. When the handle 13 is pulled down to close the flap 4 and dry Coptis chinensis, the input air can be discharged through the exhaust port 14 on the exhaust plate 6.
[0034] Working Principle: When drying Coptis chinensis, air is input through air duct 1, flows through rotating drum 9 into air outlet column 10 and air outlet screw pipe 11, and is then ejected through air holes 12 in air outlet column 10 and air outlet screw pipe 11. Simultaneously, motor 8 is energized and rotates its output end, which drives rotating drum 9 to rotate. Rotating drum 9 drives air outlet column 10 and air outlet screw pipe 11 to rotate, stirring the Coptis chinensis inside the equipment, achieving wide-area airflow and all-round drying of Coptis chinensis. When assembling or removing dried Coptis chinensis, the handle 13 on the flap 4 can be pulled. Handle 13 drives flap 4 to rotate via rotating shaft 16, quickly opening flap 4 for large-area and rapid assembly or removal of Coptis chinensis. When pulling down handle 13 to close flap 4, the input air can be discharged through exhaust port 14 on exhaust plate 6.
[0035] 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 low-temperature drying device for Coptis chinensis, comprising an air duct (1), characterized in that: The air duct (1) is fitted with a side plate (2) on the outside. A drying barrel (3) is fixedly connected to the outside of the side plate (2). A flip plate (4) is installed on the outside of the drying barrel (3). Two bottom plates (5) are provided at the bottom of the drying barrel (3). An exhaust plate (6) is fixedly connected to the side of the drying barrel (3). A support plate (7) is fixedly connected to the outside of the exhaust plate (6). A motor (8) is installed on the outside of the exhaust plate (6). A drying assembly is provided inside the drying barrel (3).
2. The low-temperature drying equipment for Coptis chinensis according to claim 1, characterized in that: The drying assembly includes a rotating drum (9), and a plurality of air outlet columns (10) are fixedly connected to the outside of the rotating drum (9). An air outlet screw pipe (11) is fixedly connected to one end of the air outlet column (10) away from the rotating drum (9). A plurality of air holes (12) are provided on the outside of the air outlet column (10) and the air outlet screw pipe (11).
3. The low-temperature drying equipment for Coptis chinensis according to claim 2, characterized in that: One end of the air duct (1) is fixedly connected to a connecting pipe (15), and the inner side of the connecting pipe (15) away from the air duct (1) is rotatably connected to the outer side of the rotating cylinder (9).
4. The low-temperature drying equipment for Coptis chinensis according to claim 1, characterized in that: The drying drum (3) is rotatably connected to a rotating shaft (16), and the outer side of the rotating shaft (16) is fixedly connected to the side end of the flap (4).
5. A low-temperature drying device for Coptis chinensis according to claim 1, characterized in that: A handle (13) is installed on the outside of the flap (4), and multiple exhaust ports (14) are opened inside the exhaust plate (6).
6. The low-temperature drying equipment for Coptis chinensis according to claim 1, characterized in that: The top of the support plate (7) abuts against the outside of the motor (8).
7. A low-temperature drying device for Coptis chinensis according to claim 2, characterized in that: The output end of the motor (8) is fixedly connected to the end of the rotating drum (9) away from the air duct (1).
8. A low-temperature drying device for Coptis chinensis according to claim 2, characterized in that: The two ends of the rotating drum (9) are rotatably connected to the inside of the side plate (2) and the exhaust plate (6), respectively.