A tobacco rhizome disease sample preservation device
By designing a tobacco root and stem disease sample preservation device with a collection chamber and sealing structure, the problem of soil loosening after root and stem sample collection was solved, thus achieving sample integrity and soil structure protection, and ensuring the accuracy of subsequent testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN TOBACCO CO YIBIN CO
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-26
AI Technical Summary
Existing tobacco root and stem collection devices cannot promptly place the roots and stems into a storage container after collection, resulting in loose soil, damage to the overall soil integrity, difficulty in maintaining the original relationship between the roots and stems and the soil microenvironment, and affecting subsequent testing results.
Design a sample preservation device for tobacco root and stem diseases, including a collection chamber and a closing plate. The collection chamber is inserted into the soil and the soil is sealed. Excess fibrous roots are cut off. The top of the collection chamber is sealed with a sealing plate and a foam pad. A foot rod is installed to facilitate operation and ensure the integrity of the root and stem samples and the compaction of the soil.
It effectively maintains the integrity of rhizome samples and soil structure, ensuring that samples are not affected during transportation and providing a reliable basis for testing.
Smart Images

Figure CN224402220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco root and stem collection technology, and in particular to a device for preserving tobacco root and stem disease samples. Background Technology
[0002] Tobacco rhizomes refer to the underground roots and above-ground stems of the tobacco plant. They are important organs for the tobacco plant to absorb water and nutrients and support its growth. The roots are mainly composed of taproots, lateral roots, and fibrous roots, which are buried deep in the soil. They are responsible for absorbing water and minerals from the soil and transporting them to other parts of the plant through the vascular tissue. They also help to fix the plant and keep it stable in the soil.
[0003] In existing technologies, when preserving tobacco rhizomes, it is necessary to use a collection device to dig them out of the soil. The device effectively separates the rhizomes from the surrounding soil, avoiding the possibility of rhizome breakage that may occur when digging by hand. This maximizes the preservation of the integrity of the rhizomes and ensures the morphology of the sampled rhizomes.
[0004] However, after the rhizomes are removed by the collection device, they cannot be placed into the preservation container immediately. During the process of placing the sample from inside the collection device into the preservation container, the soil becomes loose and its overall integrity is damaged, resulting in soil stratification. Soil stratification disrupts the original structure and microbial distribution of the soil around the rhizomes. After stratification, this original connection is broken, making it difficult to accurately reflect the true relationship between rhizome disease and the soil microenvironment during subsequent testing. However, the existing collection devices lack protective structures to preserve the collected samples, making it difficult to ensure that the samples are delivered intact to the experimental site after collection, thus hindering user convenience. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a device for preserving tobacco root and stem disease samples.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tobacco root and stem disease sample preservation device, comprising a preservation mechanism, an auxiliary mechanism provided on one side of the preservation mechanism, the preservation mechanism including a collection chamber, a closing plate provided on one side of the collection chamber, one end of the collection chamber being rotatably connected to the top of the closing plate, a sealing plate provided on the inner wall of the top of the collection chamber, the inner wall of the top of the collection chamber being slidably connected to the outer side of the sealing plate, a foam pad provided on one end of the sealing plate, and one end of the sealing plate being fixedly connected to one side of the foam pad.
[0007] In a preferred embodiment, the auxiliary mechanism includes a foot pedal, one end of which is provided with an anti-slip sleeve, the outer side of which is fixedly connected to the inner surface of the anti-slip sleeve, and one end of which is fixedly connected to one side of the collection chamber.
[0008] In a preferred embodiment, an inner block is provided on the inner wall of the top end of the collection cavity, and one end of the inner block is fixedly connected to the inner wall of the top end of the collection cavity. A rubber pad is provided on one side of the inner block, and one side of the inner block is fixedly connected to one side of the rubber pad.
[0009] In a preferred embodiment, one side of the rubber pad is in slidable contact with the inner wall of the sealing plate.
[0010] In a preferred embodiment, a locking plate is provided at one end of the side of the acquisition cavity, and the side of the acquisition cavity is rotatably connected to one end of the locking plate. A vertical rod is provided on the inner side of the locking plate, and the inner side of the locking plate is rotatably engaged with the recess of the vertical rod.
[0011] In a preferred embodiment, a protruding rod is provided on the inner side of the vertical rod, and the inner side of the vertical rod is slidably connected to the outer side of the protruding rod. One end of the protruding rod is fixedly connected to one side of the collection cavity, and a cavity is provided on one side of the collection cavity. The side of the collection cavity is fixedly connected to one side of the cavity.
[0012] In a preferred embodiment, a positioning rod is provided on the inner surface of the cavity, and the inner surface of the cavity is slidably connected to the outer side of the positioning rod. A spring is provided on the outer side of the positioning rod, and the outer side of the positioning rod is fixedly connected to the bottom end of the spring. The top end of the spring is fixedly connected to the inner surface of the cavity, and the bottom end of the positioning rod is slidably engaged with the inner wall of one end of the locking plate.
[0013] In a preferred embodiment, the bottom end of the vertical rod is provided with an arc-shaped plate, the bottom end of the vertical rod is fixedly connected to the top side of the arc-shaped plate, and the inner arc surface of the arc-shaped plate contacts one side of the closed plate.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0015] 1. By inserting the collection chamber deep into the soil, the soil around the rhizome will become more compacted due to the pressure of the external object. At the same time, during the insertion process, the excess fibrous roots of the rhizome will be cut off, leaving only the rhizome inside the collection chamber. At this time, the collection chamber is pulled up, so that the rhizome and soil are brought out. As the closing plate is rotated, the two closing plates are closed together, sealing the bottom of the collection chamber. Before collection, the tobacco leaves are passed through the collection chamber, and the two sealing plates are moved in the same direction. The foam pad between them will tightly squeeze the tobacco leaves that have passed through, ensuring that they will not be affected by other factors during the preservation process.
[0016] 2. The foot pedal installed on the collection chamber facilitates the application of force by the operator. The operator can step on the foot pedal and use their body weight to apply downward pressure, making it easier to insert the collection chamber into the soil and cut the fibrous roots. The anti-slip sleeve increases the friction between the foot and the foot pedal, preventing the foot from slipping and causing instability and tilting during the stepping process. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a tobacco root and stem disease sample preservation device provided by this utility model.
[0018] Figure 2 This is a side view of the preservation mechanism components of a tobacco root and stem disease sample preservation device provided by this utility model.
[0019] Figure 3 This is a schematic diagram of the unfolded structure of the preservation mechanism components of a tobacco root and stem disease sample preservation device provided by this utility model.
[0020] Figure 4 This is a sectional structural diagram of the preservation mechanism components of a tobacco root and stem disease sample preservation device provided by this utility model.
[0021] Figure 5 A schematic diagram of the preservation mechanism components of a tobacco root and stem disease sample preservation device provided by this utility model.
[0022] Legend:
[0023] 1. Preservation mechanism; 11. Collection chamber; 12. Closing plate; 13. Locking plate; 14. Protruding rod; 15. Vertical rod; 16. Arc plate; 17. Cavity; 18. Sealing plate; 19. Foam pad; 110. Inner block; 111. Rubber pad; 112. Spring; 113. Positioning rod;
[0024] 2. Auxiliary mechanism; 21. Step bar; 22. Anti-slip sleeve. Detailed Implementation
[0025] 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.
[0026] Example 1
[0027] like Figure 1 - Figure 5As shown, this utility model provides a technical solution: a tobacco root and stem disease sample preservation device, including a preservation mechanism 1, an auxiliary mechanism 2 provided on one side of the preservation mechanism 1, the preservation mechanism 1 including a collection chamber 11, a closing plate 12 provided on one side of the collection chamber 11, one end of the collection chamber 11 being rotatably connected to the top end of the closing plate 12, a sealing plate 18 provided on the inner wall of the top end of the collection chamber 11, the inner wall of the top end of the collection chamber 11 being slidably connected to the outer side of the sealing plate 18, and a foam provided at one end of the sealing plate 18. One end of the foam pad 19 and the sealing plate 18 are fixedly connected to one side of the foam pad 19. An inner block 110 is provided on the inner wall of the top of the collection cavity 11. One end of the inner block 110 is fixedly connected to the inner wall of the top of the collection cavity 11. A rubber pad 111 is provided on one side of the inner block 110. One side of the inner block 110 is fixedly connected to one side of the rubber pad 111. One side of the rubber pad 111 slides in contact with the inner wall of the sealing plate 18. A locking plate 13 is provided on one side of the collection cavity 11. One side of the collection cavity 11 is connected to the locking plate 18. One end of the locking plate 13 is rotatably connected to a vertical rod 15. The inner side of the locking plate 13 is rotatably engaged with the recess of the vertical rod 15. A protruding rod 14 is provided on the inner side of the vertical rod 15. The inner side of the vertical rod 15 is slidably connected to the outer side of the protruding rod 14. One end of the protruding rod 14 is fixedly connected to one side of the collection cavity 11. A cavity 17 is provided on one side of the collection cavity 11. One side of the collection cavity 11 is fixedly connected to one side of the cavity 17. A positioning rod 113 is provided on the inner surface of the cavity 17. The inner surface is slidably connected to the outer side of the positioning rod 113. A spring 112 is provided on the outer side of the positioning rod 113. The outer side of the positioning rod 113 is fixedly connected to the bottom end of the spring 112. The top end of the spring 112 is fixedly connected to the inner surface of the cavity 17. The bottom end of the positioning rod 113 is slidably engaged with the inner wall of one end of the locking plate 13. An arc plate 16 is provided at the bottom end of the vertical rod 15. The bottom end of the vertical rod 15 is fixedly connected to the top side of the arc plate 16. The inner arc surface of the arc plate 16 contacts one side of the closing plate 12.
[0028] In this embodiment, when using this tobacco root and stem disease sample preservation device, the designed collection cavity 11 is cylindrical, and a closing plate 12 is designed on one side of the collection cavity 11. The closing plate 12 is semi-circular, and the two together form a cylindrical shape. Then, by inserting the collection cavity 11 into the soil and placing the tobacco on the inner surface of the collection cavity 11, the soil around the root and stem will become more compacted due to the pressure of the external object after the collection cavity 11 enters the soil. At the same time, during the insertion process, the excess fibrous roots of the root and stem will be cut off to ensure that the collected root and stem sample is purer, leaving only the root and stem inside the collection cavity 11. At this time, the collection cavity 11 is pulled up to bring out the root and stem and soil. As the closing plate 12 is rotated, the two closing plates 12 are closed together, sealing the bottom of the collection cavity 11 to prevent the soil and root and stem from falling out. The complete collection of tobacco root and stem disease samples provides a reliable sample basis for subsequent disease detection and analysis.
[0029] Before penetrating the soil, the tobacco leaves need to be inserted into the collection chamber 11 for collection. The top inner wall of the collection chamber 11 is designed with two sealing plates 18, which are arranged in the same radial direction and are presented in opposite directions. Foam pads 19 are installed at one end of each sealing plate 18. After the tobacco leaves are inserted, the two sealing plates 18 are moved in the same direction, so that the opposite ends gradually approach and eventually fit together. The foam pads 19 in between will tightly squeeze the inserted tobacco leaves, and the sealing of the top of the collection chamber 11 prevents soil or other debris from entering through the top gap during the collection process, ensuring that it will not be affected by other factors during the preservation process, and allowing the sample to remain in its original state before testing.
[0030] A locking plate 13 is rotatably connected to one end of the collection cavity 11, and a protruding rod 14 is installed on one side of the collection cavity 11. The outer side of the protruding rod 14 is vertically slidably connected to the inner side of the vertical rod 15. Two recesses are provided on one side of the vertical rod 15. The two recesses have different functions. The top recess can be fixed after the vertical rod 15 moves down. Since an arc-shaped plate 16 is installed at the bottom of the vertical rod 15, and the inner side of the arc-shaped plate 16 is in contact with the closing plate 12, the locking plate 13 can be rotated to engage with the top recess after the vertical rod 15 moves down. This can fix the position of the locking plate 13 after it moves, thereby ensuring that the closing state of the two closing plates 12 is stable. The bottom recess can keep the vertical plate stationary when the vertical rod 15 is in its original position, by engaging with the locking plate 13, so as to avoid interfering with the closing plate 12.
[0031] The cavity 17 is installed, and a positioning rod 113 penetrates the inner surface of the cavity 17. A spring 112 is between the positioning rod 113 and the cavity 17. After the locking plate 13 rotates, the external force of releasing the positioning rod 113 causes the spring 112 to be released elastically, and the positioning rod 113 enters the inner wall of one end of the locking plate 13 to fix the locking plate 13, ensuring that the restriction on the vertical rod 15 is always effective.
[0032] An inner block 110 is installed on the inner wall at the bottom of the collection chamber 11. There are rubber pads 111 on both the left and right sides of the inner block 110. During the sliding process of the sealing plate 18, the friction between the rubber pads 111 and the sealing plate 18 makes it difficult for the sealing plate 18 to move after it moves, so that the foam pad 19 is always in contact with the tobacco leaves.
[0033] Example 2
[0034] like Figure 1 As shown, the auxiliary mechanism 2 includes a foot lever 21. An anti-slip sleeve 22 is provided on the outer side of one end of the foot lever 21. The outer side of one end of the foot lever 21 is fixedly connected to the inner surface of the anti-slip sleeve 22. One end of the foot lever 21 is fixedly connected to one side of the collection chamber 11.
[0035] In this embodiment, a foot pedal 21 is installed on one side of the collection chamber 11. There are two foot pedals 21, which are installed on the left and right sides of the collection chamber 11 respectively. An anti-slip sleeve 22 is designed on the outside of the foot pedal 21. This mainly serves to facilitate the operator to apply force. The operator can step on the foot pedal 21 and apply downward pressure with the help of body weight, making it easier to push the collection chamber 11 into the soil and cut the fibrous roots. The anti-slip sleeve 22 can increase the friction between the foot and the foot pedal 21, preventing the foot from slipping and causing unstable force application during stepping. At the same time, it ensures a more stable force application process, so that the collection chamber 11 can enter the soil vertically and reduce sample damage caused by the tilting of the collection chamber 11 due to uneven force.
[0036] Working principle:
[0037] like Figure 1 - Figure 5As shown, by inserting the collection chamber 11 deep into the soil and placing the tobacco on the inner surface of the collection chamber 11, the soil around the rootstock will become more compacted due to the pressure of the external object after the collection chamber 11 enters the soil. At the same time, during the insertion process, excess fibrous roots of the rootstock will be cut off to ensure that the collected rootstock sample is purer, leaving only the rootstock inside the collection chamber 11. At this time, the collection chamber 11 is pulled up to bring out the rootstock and soil. As the closing plate 12 is rotated, the two closing plates 12 are closed together, sealing the bottom of the collection chamber 11 to prevent soil and rootstock from falling out. Before collection, the tobacco leaves are passed through the collection chamber 11. Then, the two sealing plates 18 are moved in the same direction, so that the opposing ends gradually approach and finally stick together. The foam pad 19 between them will tightly squeeze the tobacco leaves that have passed through. The sealing of the top of the collection chamber 11 prevents soil or other debris from entering from the top gap during the collection process, ensuring that it will not be affected by other factors during the preservation process.
[0038] The foot pedal 21 installed on the collection chamber 11 facilitates the application of force by the operator. The operator can step on the foot pedal 21 and use the weight of their body to apply downward pressure, making it easier to push the collection chamber 11 deeper into the soil and cut the fibrous roots. The anti-slip sleeve 22 increases the friction between the foot and the foot pedal 21, preventing the application of force from being unstable due to slipping during the stepping process.
[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A device for preserving tobacco root and stem disease samples, characterized in that, The device includes a storage mechanism (1), an auxiliary mechanism (2) is provided on one side of the storage mechanism (1), the storage mechanism (1) includes a collection cavity (11), a closing plate (12) is provided on one side of the collection cavity (11), one end of the collection cavity (11) is rotatably connected to the top end of the closing plate (12), a sealing plate (18) is provided on the inner wall of the top end of the collection cavity (11), the inner wall of the top end of the collection cavity (11) is slidably connected to the outer side of the sealing plate (18), a foam pad (19) is provided on one end of the sealing plate (18), and one end of the sealing plate (18) is fixedly connected to one side of the foam pad (19).
2. The tobacco root and stem disease sample preservation device according to claim 1, characterized in that: The auxiliary mechanism (2) includes a foot pedal (21), with an anti-slip sleeve (22) provided on the outer side of one end of the foot pedal (21). The outer side of one end of the foot pedal (21) is fixedly connected to the inner surface of the anti-slip sleeve (22), and one end of the foot pedal (21) is fixedly connected to one side of the collection chamber (11).
3. The tobacco root and stem disease sample preservation device according to claim 1, characterized in that: The top inner wall of the collection cavity (11) is provided with an inner block (110), and the top inner wall of the collection cavity (11) is fixedly connected to one end of the inner block (110). A rubber pad (111) is provided on one side of the inner block (110), and one side of the inner block (110) is fixedly connected to one side of the rubber pad (111).
4. The tobacco root and stem disease sample preservation device according to claim 3, characterized in that: One side of the rubber pad (111) slides in contact with the inner wall of the sealing plate (18).
5. The tobacco root and stem disease sample preservation device according to claim 1, characterized in that: A locking plate (13) is provided on one side of the collection cavity (11), and the side of the collection cavity (11) is rotatably connected to one end of the locking plate (13). A vertical rod (15) is provided on the inner side of the locking plate (13), and the inner side of the locking plate (13) is rotatably engaged with the recess of the vertical rod (15).
6. The tobacco root and stem disease sample preservation device according to claim 5, characterized in that: The inner side of the vertical rod (15) is provided with a protruding rod (14), and the inner side of the vertical rod (15) is slidably connected to the outer side of the protruding rod (14). One end of the protruding rod (14) is fixedly connected to one side of the collection cavity (11). One side of the collection cavity (11) is provided with a cavity (17), and one side of the collection cavity (11) is fixedly connected to one side of the cavity (17).
7. The tobacco root and stem disease sample preservation device according to claim 6, characterized in that: A positioning rod (113) is provided on the inner surface of the cavity (17). The inner surface of the cavity (17) is slidably connected to the outer side of the positioning rod (113). A spring (112) is provided on the outer side of the positioning rod (113). The outer side of the positioning rod (113) is fixedly connected to the bottom end of the spring (112). The top end of the spring (112) is fixedly connected to the inner surface of the cavity (17). The bottom end of the positioning rod (113) is slidably engaged with the inner wall of one end of the locking plate (13).
8. A tobacco root and stem disease sample preservation device according to claim 6, characterized in that: The bottom end of the vertical rod (15) is provided with an arc plate (16), the bottom end of the vertical rod (15) is fixedly connected to the top side of the arc plate (16), and the inner arc surface of the arc plate (16) contacts one side of the closed plate (12).