烤烟根系原位无损分泌物采集装置
By designing an in-situ non-destructive exudate collection device for flue-cured tobacco roots, and employing a pollution-resistant filter and a composite adsorption layer, the problems of high destructiveness and complex operation of traditional methods are solved. This device achieves non-destructive, continuous dynamic monitoring and sample purity, adapts to changes in root growth, and is suitable for field environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO YUNNAN IMP & EXP CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional methods for collecting root exudates from flue-cured tobacco are highly destructive, complex to operate, and difficult to achieve continuous dynamic monitoring in the field. Existing devices are also ill-suited to the complex conditions in the field.
A non-destructive in-situ exudate collection device for flue-cured tobacco roots, comprising a first connecting shell and a second connecting shell, was designed. It employs an anti-pollution filter, a composite adsorption layer, and a temperature sensor, and uses elastic clips to fix the root system, thereby achieving non-destructive collection and continuous monitoring.
It enables non-destructive, continuous, and dynamic monitoring of tobacco root exudates, ensuring sample purity, adapting to changes in root growth, accommodating the collection of organic and inorganic substances, and simulating different soil temperature environments.
Smart Images

Figure CN224518201U_ABST
Abstract
Claims
1. A device for non-destructive exudate collection in situ from flue-cured tobacco roots, characterized in that, It includes a first connecting shell (1) and a second connecting shell (2), one end of the first connecting shell (1) and the second connecting shell (2) are hinged together, and the area enclosed by the first connecting shell (1) and the second connecting shell (2) forms a cavity (3). The inner wall of the cavity (3) is provided with a threaded groove. The top and bottom ends of the cavity (3) are provided with a first slot (4), a second slot (5) and a third slot (6) in sequence. The first slot (4), the second slot (5) and the third slot (6) are respectively provided with an anti-pollution filter (7), a composite adsorption layer (9) and a fixed ventilation net (8). The top ends of the first connecting shell (1) and the second connecting shell (2) are provided with two root fixing rings (14).
2. The flue-cured tobacco root in situ non-invasive exudate collection device of claim 1, wherein: The bottom ends of the first connecting shell (1) and the second connecting shell (2) are connected to a conical seat (12), and fixing nails (13) are equidistantly arranged on the outer side of the conical seat (12).
3. The flue-cured tobacco root in situ non-invasive exudate collection device of claim 1, wherein: The composite adsorption layer (9) includes an activated carbon fiber layer (10) and an ion exchange resin layer (11), which are fixedly connected and are connected in conjunction with each other in the second slot (5).
4. The flue-cured tobacco root in situ non-invasive exudate collection device of claim 1, wherein: An elastic buckle (19) is provided between the two ends of the root fixing ring (14), and the two ends of the root fixing ring (14) are fixed together by the elastic buckle (19).
5. The in-situ non-destructive exudate collection device for flue-cured tobacco roots according to claim 4, characterized in that: The elastic buckle (19) includes a retaining ring (15), a connecting block (16), an arc-shaped retaining plate (17), and a spring (18). One end of the root fixing ring (14) is provided with a retaining ring (15), and the other end of the root fixing ring (14) is provided with a connecting block (16). The end of the connecting block (16) is symmetrically rotatably connected to the arc-shaped retaining plate (17). The spring (18) is fixed between the arc-shaped retaining plate (17) and the connecting block (16). The retaining ring (15) is engaged between the two arc-shaped retaining plates (17).
6. The flue-cured tobacco root in situ non-invasive exudate collection device of claim 1, wherein: The root fixing ring (14) is a buffer ring made of silicone ring gasket.
7. The flue-cured tobacco root in situ non-invasive exudate collection device of claim 1, wherein: Temperature sensors (20) and miniature heating elements (21) are respectively provided on the inner wall of the cavity (3).
8. The flue-cured tobacco root in situ non-invasive exudate collection device of claim 1, wherein: The inner wall of the cavity (3) is provided with a microporous flow guiding membrane.