A plant root exudate extraction device

Abstract

This invention provides a plant root exudate extraction device. The device includes a connecting mechanism, an extraction mechanism, and a pressure mechanism. The connecting mechanism is positioned above the extraction mechanism, and the extraction mechanism is connected to the pressure mechanism. The plant root exudate extraction device provided by this invention possesses dual functions: adaptive clamping of the filtration flask and dynamic switching of the negative pressure path. This effectively avoids sample contamination and loss caused by filtration flask displacement during collection. Furthermore, because the size of the placement groove is larger than the outer diameter of the filtration flask, the device ensures its versatility in adapting to various filtration flask sizes. During clamping, the compression deformation of the elastic telescopic sleeve and the precise displacement coupling of the gear transmission ensure uniform and controllable radial clamping force applied to the filtration flask by the clamping blocks, preventing flask deformation or seal failure and improving the device's applicability.

Description

Technical Field

[0001] This invention relates to the field of secretion extraction technology, and in particular to a device for extracting plant root secretions. Background Technology

[0002] Plant root exudates play a crucial role in studies on plant nutrient absorption, soil microbial ecology, and plant-environment interactions. Accurate and efficient extraction of plant root exudates is the foundation for conducting related research. Currently, most commonly used prototype plant root exudate extraction devices are designed based on solid-phase extraction instruments.

[0003] Existing plant root exudate extraction devices suffer from significant limitations in terms of flask compatibility. The flasks themselves are of a single specification, typically only compatible with test tube-shaped flasks. However, in actual research and production, different experimental scenarios have vastly different requirements for the shape and volume of the flasks. For example, small-scale laboratory studies may only require the extraction of a small amount of sample, necessitating small-volume test tubes; but large-scale field sample collection and analysis require large-volume flasks to hold more extract. This limitation in specifications severely restricts the applicability of existing devices, failing to meet diverse experimental needs. Furthermore, the difficulty in adapting to flasks of different shapes further exacerbates the problem. Instability can easily occur when fixing the filtration flask, causing the extract to spill during the extraction process. This not only results in sample loss and affects the accuracy of experimental results, but may also contaminate the experimental environment, increase experimental costs, and the frequency of repeated operations. In addition, the valve structure on the top of the existing device uses a rotary opening and closing method. When frequent operation or when rapid switching of experimental steps is required, the rotary operation is relatively cumbersome and inefficient, especially in situations with limited space or when one-handed operation is required. Furthermore, after long-term use, the rotating parts are prone to wear and jamming, affecting the sealing performance and causing the extract to leak or allow outside air to enter, interfering with the experimental results.

[0004] Therefore, it is necessary to provide a plant root exudate extraction device to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a plant root exudate extraction device, which solves the problems of existing plant root exudate extraction devices, such as the limited specifications of the filtration flask, difficulty in adapting to diverse needs, unstable fixing leading to easy spillage of the extract, and cumbersome operation of the upper valve body due to rotation, wear and jamming after long-term use, affecting sealing and interfering with experimental results.

[0006] To solve the above-mentioned technical problems, the present invention provides a plant root exudate extraction device, comprising: a connecting mechanism, an extraction mechanism, and a pressure mechanism, wherein the connecting mechanism is disposed above the extraction mechanism, and the extraction mechanism is connected to the pressure mechanism;

[0007] The connecting mechanism includes a top cover, a sealing strip disposed below the top cover, several adjusting components, and several liquid outlets, wherein several adjusting components are disposed above the top cover, and several liquid outlets are disposed below the top cover, and the liquid outlets are connected to the adjusting components.

[0008] The extraction mechanism includes a sealing shell, an installation assembly snapped into the sealing shell, several clamping assemblies connected to the installation assembly, several first gear assemblies and second gear assemblies connected to the installation assembly, a first gear plate, a conveying assembly, a placement assembly, and a filtration bottle. The placement assembly is connected to the conveying assembly, the first gear plate is connected to the second gear assembly, the filtration bottle is located above the placement assembly, and the conveying assembly is connected to the second gear assembly.

[0009] Pressure mechanism, including delivery pipe and vacuum pump connected to delivery pipe.

[0010] Preferably, the lower part of the top cover is fixedly connected to a sealing strip, and the upper part of the top cover is fixedly connected to several adjusting components, which are respectively connected to several liquid outlets through the top cover;

[0011] The top cover is snapped onto the top of the sealing shell, and the sealing strip is fitted onto the outside of the sealing shell.

[0012] Preferably, the inner wall of the sealing shell is snapped into the mounting assembly, the mounting assembly is fixedly connected to a plurality of clamping assemblies, the plurality of clamping assemblies are respectively engaged with a plurality of first gear assemblies, the plurality of first gear assemblies are respectively engaged with a plurality of second gear assemblies, the plurality of second gear assemblies are respectively engaged with a plurality of first gear plates and a conveying assembly, the other end of the conveying assembly is fixedly connected to the placement assembly, and the upper part of the placement assembly overlaps with the suction filtration bottle;

[0013] The upper part of the sealing shell is snapped into the lower part of the top cover, and one side of the sealing shell is connected to the vacuum pump through a delivery pipe.

[0014] Preferably, the adjusting component includes a connecting pipe, a sliding sleeve fixedly connected to the upper part of the connecting pipe, a connecting pipe fixedly connected to the upper part of the sliding sleeve, the connecting pipe communicating with the connecting pipe through the sliding sleeve, a plurality of limiting strips fixedly connected inside the sliding sleeve, a slider slidably connected inside the sliding sleeve, a plurality of limiting grooves opened outside the slider, a plurality of limiting strips slidably connected in the plurality of limiting grooves respectively, a through hole opened above the slider, baffles fixedly connected to both ends of the slider, and a pull ring fixedly connected to one side of one of the baffles;

[0015] The connecting pipe is fixedly connected to the top of the top cover, and the connecting pipe is connected to the bottom end of the liquid outlet through the top cover.

[0016] Preferably, the mounting assembly includes a mounting plate, the mounting plate having a plurality of placement slots on its upper surface, a plurality of mounting slots on its lower surface, and a plurality of sliding holes on its upper surface.

[0017] Both the No. 1 gear assembly and the No. 2 gear assembly are snapped into the mounting groove, the No. 1 gear plate and the conveying assembly are slidably connected in the sliding hole, and the mounting plate is snapped into the sealing shell.

[0018] Preferably, the clamping assembly includes a sleeve, a slide rod is slidably connected inside the sleeve, a plurality of toothed blocks are fixedly connected to one side of the slide rod, and a clamping block is fixedly connected to the other end of the slide rod;

[0019] The sleeve is fixedly connected to the mounting plate, the clamping block is located in the placement groove, and the slide rod meshes with the first gear assembly through several toothed blocks.

[0020] Preferably, the first gear assembly includes a positioning plate, one side of which is engaged with a first rotator, which is fixedly connected to a first bevel gear and a first gear respectively.

[0021] The positioning plate is snapped into the mounting slot, the first gear meshes with several tooth blocks, and the first bevel gear meshes with the second gear assembly.

[0022] Preferably, the second gear assembly includes a second rotator, which is fixedly connected to the second gear and the second bevel gear respectively;

[0023] Both the No. 1 rotator and the No. 2 rotator are composed of bearings and shafts. The No. 1 bevel gear meshes with the No. 2 bevel gear. The No. 2 gear meshes with the No. 1 gear plate and the conveying assembly respectively. The No. 2 rotator is snapped into the mounting groove.

[0024] Preferably, the conveying assembly includes a plurality of second toothed plates, and each of the plurality of second toothed plates is fixedly connected to a pressing rod. A sealing sleeve is fitted under the pressing rod, and the plurality of sealing sleeves are connected to the same elastic telescopic sleeve through an exhaust pipe.

[0025] The upper part of the elastic telescopic sleeve is fixedly connected to the placement component, the second toothed plate meshes with one side of the second gear, the bottom end of the elastic telescopic sleeve overlaps with the lower part of the inner wall of the sealing shell, and the second toothed plate is slidably connected in one of the sliding holes.

[0026] Preferably, the placement assembly includes a placement plate, a slot is provided on the top of the placement plate, and an anti-slip ring is fixedly connected to the top of the placement plate;

[0027] The placement plate overlaps with the filtration bottle via an anti-slip ring and a slot. The bottom of the placement plate is fixedly connected to the top of the elastic telescopic sleeve, and the bottom of the first toothed plate is fixedly connected to the top of the placement plate.

[0028] Compared with related technologies, the plant root exudate extraction device provided by the present invention has the following beneficial effects:

[0029] This invention provides a plant root exudate extraction device. When placing the filtration flask, simply place it directly above the placement plate, allowing the flask's weight to push the placement plate downwards. Simultaneously, the placement plate moves downwards under the weight of the flask, causing the first gear plate to move downwards and the second gear plate to move upwards. This rotation of the second gear, through the second bevel gear, drives the first bevel gear to rotate synchronously, thus driving the first gear to rotate. This, in turn, causes the toothed block and sliding rod to slide towards the filtration flask, and the sliding rod pushes the clamping block to hold the flask against its outer wall. The device achieves automatic clamping and positioning of the vacuum filtration flask, enabling it to have dual functions of adaptive clamping and dynamic switching of negative pressure path. This effectively avoids sample contamination and loss caused by flask displacement during collection. At the same time, since the size of the placement slot is larger than the outer diameter of the vacuum filtration flask, the device can be adapted to various sizes of vacuum filtration flasks. Furthermore, during the clamping process, the compression deformation of the elastic telescopic sleeve and the precise displacement coupling of the gear transmission ensure that the radial clamping force applied by the clamping block to the vacuum filtration flask is uniform and controllable, preventing flask deformation or seal failure and improving the applicability of the device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a preferred embodiment of the plant root exudate extraction device provided by the present invention.

[0031] Figure 2 This is a schematic diagram of the connecting mechanism;

[0032] Figure 3 A schematic diagram of the structure of the adjustment component;

[0033] Figure 4 A structural schematic diagram showing the cross-section of the adjustable component;

[0034] Figure 5 This is a schematic diagram of the cross-section of the sealing shell;

[0035] Figure 6 This is a structural schematic diagram showing the cross-section of the mounting components;

[0036] Figure 7 for Figure 6 Enlarged structural diagram at point A;

[0037] Figure 8 This is a schematic diagram of the conveying component.

[0038] Figure 9 for Figure 8 Enlarged structural diagram at point B.

[0039] The diagram labels are: 1. Connecting mechanism; 2. Extraction mechanism; 3. Pressure mechanism;

[0040] 11. Top cover; 12. Sealing strip; 13. Adjustment assembly; 14. Liquid outlet;

[0041] 21. Sealing shell; 22. Mounting assembly; 23. Clamping assembly; 24. Gear assembly No. 1; 25. Gear assembly No. 2; 26. Conveying assembly; 27. Placement assembly; 28. Filter bottle; 29. ​​Gear plate No. 1;

[0042] 31. Delivery pipe; 32. Vacuum pump;

[0043] 131. Connecting pipe; 132. Sliding sleeve; 133. Limiting strip; 134. Connecting pipe; 135. Sliding block; 136. Limiting groove; 137. Through hole; 138. Baffle; 139. Pull ring;

[0044] 221. Mounting plate; 222. Placement slot; 223. Mounting slot; 224. Sliding hole;

[0045] 231. Sleeve; 232. Slide rod; 233. Tooth block; 234. Clamping block;

[0046] 241. Positioning plate; 242. Rotator No. 1; 243. Bevel gear No. 1; 244. Gear No. 1;

[0047] 251. Rotator No. 2; 252. Gear No. 2; 253. Bevel Gear No. 2;

[0048] 261. No. 2 toothed plate; 262. Extrusion rod; 263. Sealing sleeve; 264. Exhaust pipe; 265. Elastic telescopic sleeve;

[0049] 271. Placement plate; 272. Card slot; 273. Anti-slip ring. Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0051] Please refer to the following: Figures 1 to 9 The plant root exudate extraction device includes: a connecting mechanism 1, an extraction mechanism 2, and a pressure mechanism 3. The connecting mechanism 1 is located above the extraction mechanism 2, and the extraction mechanism 2 is connected to the pressure mechanism 3.

[0052] The connecting mechanism 1 includes a top cover 11, a sealing strip 12 disposed below the top cover 11, several adjusting components 13, and several liquid outlets 14. The adjusting components 13 are all disposed above the top cover 11, and the liquid outlets 14 are disposed below the top cover 11, communicating with the adjusting components 13. The extraction mechanism 2 includes a sealing shell 21, an installation component 22 snapped into the sealing shell 21, several clamping components 23 connected to the installation component 22, and several first gear assemblies 24 and second gear assemblies 25 connected to the installation component 22. 5. A first gear plate 29, a conveying assembly 26, a placement assembly 27, and a filtration flask 28. The placement assembly 27 is connected to the conveying assembly 26, the first gear plate 29 is connected to the second gear assembly 25, the filtration flask 28 is located above the placement assembly 27, and the conveying assembly 26 is connected to the second gear assembly 25. The pressure mechanism 3 includes a conveying pipe 31 and a vacuum pump 32 connected to the conveying pipe 31. When placing the filtration flask 28, simply place it directly above the placement plate 271, allowing the filtration flask 28 to press down on the placement plate 271 using its own weight. Under the weight of the filtration flask 28, the placement plate 271 moves downward. Simultaneously, the placement plate 271 drives the first toothed plate 29 downward and the second toothed plate 261 upward. This causes the second gear 252 to rotate, which in turn drives the first bevel gear 243 to rotate synchronously via the second bevel gear 253. This, in turn, drives the first gear 244 to rotate, causing the toothed block 233 and the slide rod 232 to slide towards the filtration flask 28. The slide rod 232 then pushes the clamping block 234 to clamp the filtration flask 28 against its outer wall, achieving automatic clamping and positioning of the filtration flask 28. This gives the device the ability to... The dual functions of adaptive clamping and dynamic switching of negative pressure path of the vacuum filtration bottle 28 effectively avoid sample contamination and loss caused by displacement of the vacuum filtration bottle 28 during the collection process. At the same time, since the size of the placement groove 222 is larger than the outer diameter of the vacuum filtration bottle 28, the device can be adapted to various specifications of vacuum filtration bottles 28. During the clamping process, the compression deformation of the elastic telescopic sleeve 265 and the precise displacement coupling of the gear transmission ensure that the radial clamping force applied by the clamping block 234 to the vacuum filtration bottle 28 is uniform and controllable, avoiding bottle deformation or sealing failure, thus improving the applicability of the device.

[0053] The top cover 11 is fixedly connected to the sealing strip 12 at its lower part, and to several adjusting components 13 at its upper part. These adjusting components 13 are connected to several liquid outlets 14 via the top cover 11. The top cover 11 is snapped onto the top of the sealing shell 21. The sealing strip 12 is sleeved over the sealing shell 21. The inner wall of the sealing shell 21 is snapped onto the mounting component 22. The mounting component 22 is fixedly connected to several clamping components 23. The clamping components 23 mesh with several first gear components 24. The first gear components 24 mesh with several second gear components 25. 5 meshes with several toothed plates 29 and conveying components 26 respectively. The other end of the conveying component 26 is fixedly connected to the placement component 27. The upper part of the placement component 27 overlaps with the suction flask 28. The upper part of the sealing shell 21 is snapped into the lower part of the top cover 11. One side of the sealing shell 21 is connected to the vacuum pump 32 through the conveying pipe 31. The direct-push valve body structure directly seals the sliding sleeve 132 with the slider 135, reducing intermediate links and possible leakage points. The seal is tighter and more reliable. Under the condition that strict control of experimental conditions is required, this improvement can ensure the stability of the experimental environment and improve the accuracy and repeatability of experimental data.

[0054] The adjusting assembly 13 includes a connecting pipe 131, a sliding sleeve 132 fixedly connected to the upper part of the connecting pipe 131, a connecting pipe 134 fixedly connected to the upper part of the sliding sleeve 132, the connecting pipe 134 communicating with the connecting pipe 131 through the sliding sleeve 132, a plurality of limiting strips 133 fixedly connected inside the sliding sleeve 132, a slider 135 slidably connected inside the sliding sleeve 132, a plurality of limiting grooves 136 opened on the outside of the slider 135, the plurality of limiting strips 133 slidably connected in the plurality of limiting grooves 136 respectively, and a through hole 137 opened on the upper part of the slider 135. Both ends of 135 are fixedly connected to baffles 138. A pull ring 139 is fixedly connected to one side of one of the baffles 138. A connecting pipe 131 is fixedly connected to the top cover 11. The connecting pipe 131 is connected to the bottom end of the outlet 14 through the top cover 11. The mounting assembly 22 includes a mounting plate 221. Several placement slots 222 are opened on the top of the mounting plate 221. Several mounting slots 223 are opened on the bottom of the mounting plate 221. Several sliding holes 224 are opened on the top of the mounting plate 221. Gear assembly 24 and gear assembly 25 are also included. All components are snapped into the mounting groove 223. The first gear plate 29 and the conveying assembly 26 are slidably connected in the sliding hole 224. The mounting plate 221 is snapped into the sealing shell 21. The clamping assembly 23 includes a sleeve 231, in which a sliding rod 232 is slidably connected. Several toothed blocks 233 are fixedly connected to one side of the sliding rod 232, and a clamping block 234 is fixedly connected to the other end of the sliding rod 232. The sleeve 231 is fixedly connected to the mounting plate 221, and the clamping block 234 is located in the placement groove 222. The sliding rod 232 is connected to the first gear assembly 24 through several toothed blocks 233. The device is designed for interlocking, and the presence of a pull ring 139 allows for easy opening and closing by simply pushing the slider 135. When opening, pushing the slider 135 connects the connecting tube 131 and the connecting tube 134, allowing liquid to flow smoothly. When closing, pulling the slider 135 seals the connecting tube 131 and the connecting tube 134, preventing liquid flow. This intuitive and simple operation method greatly improves the efficiency of experimental operations and reduces operation time, making it particularly suitable for scenarios requiring rapid switching of experimental steps or processing of large numbers of samples.

[0055] Gear assembly 24 includes a positioning plate 241. A rotator 242 is snapped onto one side of the positioning plate 241. The rotator 242 is fixedly connected to a bevel gear 243 and a gear 244. The positioning plate 241 is snapped into a mounting groove 223. The gear 244 meshes with several tooth blocks 233. The bevel gear 243 meshes with gear assembly 25. Gear assembly 25 includes a rotator 251, which is fixedly connected to a gear 252 and a bevel gear 253. Both the rotator 242 and the rotator 251 consist of bearings and shafts. The bevel gear 243 meshes with the second bevel gear 253, and the second gear 252 meshes with the first gear plate 29 and the conveying assembly 26 respectively. The second rotator 251 is snapped into the mounting groove 223. This device can adapt to different shapes and volumes of suction flasks 28 within the inner diameter range of the placement groove 222. This means that under various experimental conditions, whether it is a small-scale research experiment or a large-scale sample extraction, the appropriate suction flask 28 can be flexibly selected according to actual needs, without being limited to specific specifications. This greatly expands the application range of the extraction device and enables it to meet more diverse scientific research and production needs.

[0056] The conveying assembly 26 includes several second-order toothed plates 261. Each second-order toothed plate 261 has a pressing rod 262 fixedly connected to its lower side. A sealing sleeve 263 is fitted under each pressing rod 262. Several sealing sleeves 263 are connected to the same elastic telescopic sleeve 265 via an exhaust pipe 264. The upper part of the elastic telescopic sleeve 265 is fixedly connected to the placement assembly 27. The second-order toothed plates 261 mesh with one side of the second-order gear 252. The bottom end of the elastic telescopic sleeve 265 overlaps with the lower part of the inner wall of the sealing shell 21. The second-order toothed plates 261 are slidably connected within one of the sliding holes 224. The placement assembly 27 includes a placement plate 271. A slot 272 is provided on the upper part of the placement plate 271. An anti-slip ring 273 is fixedly connected to the top of the placement plate 271. The placement plate 271 overlaps with the filtration flask 28 through the anti-slip ring 273 and the slot 272. The bottom of the placement plate 271 is fixedly connected to the top of the elastic telescopic sleeve 265. The bottom end of the first toothed plate 29 is fixedly connected to the top of the placement plate 271. By designing the slot 272 and the anti-slip ring 273 on the top of the placement plate 271, this device can better adapt to filtration flasks 28 of different shapes and volumes, ensuring that the filtration flask 28 remains stable during the extraction process. This improvement effectively avoids the spillage of the extract, improves the reliability and safety of the experiment, reduces repeated experiments caused by sample loss, and saves time and resources.

[0057] The working principle of the plant root exudate extraction device provided by this invention is as follows:

[0058] When in use, place the plant root system to be tested in a wide-mouth bottle with qualitative filter paper, and insert the bottom of the wide-mouth bottle into the top of the connecting tube 134, so that the adjusting component 13 is in communication with the wide-mouth bottle. At this time, the vacuum pump 32 can be started to adjust the pressure inside the sealing shell 21.

[0059] After the pressure is adjusted, the pull ring 139 and the baffle 138 need to be squeezed slightly so that the slider 135 slides in the sliding sleeve 132. When the through hole 137 above the slider 135 is connected to both the connecting pipe 131 and the connecting pipe 134, the through hole 137 of the slider 135 is connected to the connecting pipe 134. The root secretions in the wide-mouth bottle are filtered by the qualitative filter paper under negative pressure and flow into the connecting pipe 134. They then enter the outlet 14 below the top cover 11 along the connecting pipe 131 and finally drip into the suction filtration bottle 28 to complete the collection.

[0060] After the collection process is completed, the slider 135 is reset by pulling the pull ring 139, cutting off the connection between the connecting pipe 134 and the connecting tube 131. Then, the vacuum pump 32 is turned off and the top cover 11 is opened. The filtration flask 28 is then removed, completing a single collection operation. When placing the filtration flask 28 again, simply place it directly on top of the placement plate 271, allowing the filtration flask 28 to press down on the placement plate 271 under its own weight. At this time, the placement plate 271 is lowered by the gravity of the filtration flask 28. As the plate moves downward, the placement plate 271 moves the first toothed plate 29 downward and the second toothed plate 261 upward, causing the second gear 252 to rotate. At the same time, the second bevel gear 253 drives the first bevel gear 243 to rotate synchronously, thereby driving the first gear 244 to run. This causes the tooth block 233 and the slide rod 232 to slide towards the filtration bottle 28. The slide rod 232 then pushes the clamping block 234 to clamp the filtration bottle 28 on the outer wall, achieving automatic clamping and positioning of the filtration bottle 28.

[0061] Compared with related technologies, the plant root exudate extraction device provided by the present invention has the following beneficial effects:

[0062] Because of the pull ring 139, the device can be opened and closed simply by pushing the slider 135. When open, pushing the slider 135 connects the connecting tube 131 and the connecting tube 134, allowing the liquid to flow smoothly. When closed, pulling the slider 135 seals the connecting tube 131 and the connecting tube 134, preventing the liquid from flowing. This intuitive and simple operation greatly improves the efficiency of experimental operations and reduces operation time. It is especially suitable for scenarios that require rapid switching of experimental steps or processing of a large number of samples.

[0063] The device can accommodate filtration flasks 28 of different shapes and volumes within the inner diameter range of the placement slot 222. This means that under various experimental conditions, whether it is a small-scale research experiment or a large-scale sample extraction, the appropriate filtration flask 28 can be flexibly selected according to actual needs, without being limited to specific specifications. This greatly expands the scope of application of the extraction device, enabling it to meet more diverse scientific research and production needs.

[0064] The direct-push valve body structure reduces intermediate links and potential leakage points through the direct sealing between the slider 135 and the sleeve 132, resulting in a tighter and more reliable seal. In situations where strict control of experimental conditions is required, this improvement can ensure the stability of the experimental environment and improve the accuracy and repeatability of experimental data.

[0065] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for extracting plant root exudates, characterized in that, include: The assembly includes a connecting mechanism (1), an extraction mechanism (2), and a pressure mechanism (3), wherein the connecting mechanism (1) is disposed above the extraction mechanism (2), and the extraction mechanism (2) is connected to the pressure mechanism (3); The connecting mechanism (1) includes a top cover (11), a sealing strip (12) disposed below the top cover (11), a plurality of adjusting components (13) and a plurality of liquid outlets (14), wherein the plurality of adjusting components (13) are disposed above the top cover (11) and the plurality of liquid outlets (14) are disposed below the top cover (11), and the liquid outlets (14) are connected to the adjusting components (13); The extraction mechanism (2) includes a sealing shell (21), an installation assembly (22) snapped into the sealing shell (21), a plurality of clamping assemblies (23) connected to the installation assembly (22), a plurality of first gear assemblies (24) and second gear assemblies (25) connected to the installation assembly (22), a first gear plate (29), a conveying assembly (26), a placement assembly (27), and a suction filtration bottle (28). The placement assembly (27) is connected to the conveying assembly (26), the first gear plate (29) is connected to the second gear assembly (25), the suction filtration bottle (28) is located above the placement assembly (27), and the conveying assembly (26) is connected to the second gear assembly (25). The pressure mechanism (3) includes a delivery pipe (31) and a vacuum pump (32) connected to the delivery pipe (31).

2. The plant root exudate extraction device according to claim 1, characterized in that, The top cover (11) is fixedly connected to the sealing strip (12) at the bottom and to several adjusting components (13) at the top. The several adjusting components (13) are connected to several liquid outlets (14) through the top cover (11). The top cover (11) is snapped onto the top of the sealing shell (21), and the sealing strip (12) is sleeved on the outside of the sealing shell (21).

3. The plant root exudate extraction device according to claim 2, characterized in that, The inner wall of the sealing shell (21) is snapped into the mounting assembly (22). The mounting assembly (22) is fixedly connected to a plurality of clamping assemblies (23). The plurality of clamping assemblies (23) mesh with a plurality of first gear assemblies (24). The plurality of first gear assemblies (24) mesh with a plurality of second gear assemblies (25). The plurality of second gear assemblies (25) mesh with a plurality of first gear plates (29) and a conveying assembly (26). The other end of the conveying assembly (26) is fixedly connected to the placement assembly (27). The top of the placement assembly (27) overlaps with the suction flask (28). The upper part of the sealing shell (21) is snapped into the lower part of the top cover (11), and one side of the sealing shell (21) is connected to the vacuum pump (32) through the delivery pipe (31).

4. The plant root exudate extraction device according to claim 3, characterized in that, The adjustment component (13) includes a connecting pipe (131), a sliding sleeve (132) is fixedly connected to the top of the connecting pipe (131), a connecting pipe (134) is fixedly connected to the top of the sliding sleeve (132), the connecting pipe (134) is connected to the connecting pipe (131) through the sliding sleeve (132), a plurality of limiting strips (133) are fixedly connected inside the sliding sleeve (132), a slider (135) is slidably connected inside the sliding sleeve (132), a plurality of limiting grooves (136) are provided outside the slider (135), a plurality of limiting strips (133) are slidably connected in a plurality of limiting grooves (136), a through hole (137) is provided above the slider (135), and baffles (138) are fixedly connected to both ends of the slider (135), a pull ring (139) is fixedly connected to one side of one of the baffles (138). The connecting pipe (131) is fixedly connected above the top cover (11), and the connecting pipe (131) is connected to the bottom end of the liquid outlet (14) through the top cover (11).

5. The plant root exudate extraction device according to claim 4, characterized in that, The mounting assembly (22) includes a mounting plate (221), which has a plurality of placement slots (222) on its upper surface, a plurality of mounting slots (223) on its lower surface, and a plurality of sliding holes (224) on its upper surface. The first gear assembly (24) and the second gear assembly (25) are both snapped into the mounting groove (223), the first gear plate (29) and the conveying assembly (26) are both slidably connected in the sliding hole (224), and the mounting plate (221) is snapped into the sealing shell (21).

6. The plant root exudate extraction device according to claim 5, characterized in that, The clamping assembly (23) includes a sleeve (231), a slide rod (232) is slidably connected inside the sleeve (231), a plurality of toothed blocks (233) are fixedly connected to one side of the slide rod (232), and a clamping block (234) is fixedly connected to the other end of the slide rod (232). The sleeve (231) is fixedly connected to the mounting plate (221), the clamp (234) is located in the placement groove (222), and the slide rod (232) meshes with the first gear assembly (24) through several toothed blocks (233).

7. The plant root exudate extraction device according to claim 6, characterized in that, The first gear assembly (24) includes a positioning plate (241), one side of which is engaged with a first rotator (242), and the first rotator (242) is fixedly connected to a first bevel gear (243) and a first gear (244) respectively. The positioning plate (241) is snapped into the mounting groove (223), the first gear (244) meshes with several tooth blocks (233), and the first bevel gear (243) meshes with the second gear assembly (25).

8. The plant root exudate extraction device according to claim 7, characterized in that, The second gear assembly (25) includes a second rotator (251), which is fixedly connected to the second gear (252) and the second bevel gear (253) respectively; Both the first rotator (242) and the second rotator (251) are composed of bearings and shafts. The first bevel gear (243) meshes with the second bevel gear (253). The second gear (252) meshes with the first gear plate (29) and the conveying assembly (26) respectively. The second rotator (251) is snapped into the mounting groove (223).

9. The plant root exudate extraction device according to claim 8, characterized in that, The conveying assembly (26) includes several second toothed plates (261), and each of the several second toothed plates (261) is fixedly connected to a pressing rod (262). A sealing sleeve (263) is sleeved under the pressing rod (262), and the several sealing sleeves (263) are connected to the same elastic telescopic sleeve (265) through an exhaust pipe (264). The upper part of the elastic telescopic sleeve (265) is fixedly connected to the placement component (27), the second tooth plate (261) meshes with one side of the second gear (252), the bottom end of the elastic telescopic sleeve (265) overlaps with the lower part of the inner wall of the sealing shell (21), and the second tooth plate (261) is slidably connected in one of the sliding holes (224).

10. The plant root exudate extraction device according to claim 9, characterized in that, The placement component (27) includes a placement plate (271), a slot (272) is provided on the upper part of the placement plate (271), and an anti-slip ring (273) is fixedly connected to the upper part of the placement plate (271). The placement plate (271) overlaps with the filtration bottle (28) through the anti-slip ring (273) and the slot (272). The bottom of the placement plate (271) is fixedly connected to the top of the elastic telescopic sleeve (265), and the bottom of the first toothed plate (29) is fixedly connected to the top of the placement plate (271).

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