Soil sampler with root system for mycorrhizal seedling cultivation

Abstract

The invention relates to the technical field of soil sampling, and particularly discloses a soil sampler with a root system for mycorrhizal seedling cultivation, which comprises a sampling machine, and also comprises a drilling assembly arranged in the sampling machine and used for sampling soil; the sampling bin is arranged outside the sampling machine and is used for collecting soil; the waste bin is arranged at the top of the sampling machine and is used for collecting stone particles in the soil; the filtering assembly is arranged at the top of the sampling machine and is used for filtering soil; a collection plate; the collecting assembly is arranged below the filtering assembly and is used for collecting filtered soil; through the arrangement of the filtering assembly, stone particles in soil can be filtered, the situation that the detection result is not standard due to the fact that the stone particles and the soil are detected together is avoided, through the arrangement of a scraping plate and an abutting plate, the filtered stone particles can be conveniently collected, and the situation that the stone particles are intercepted on a filtering plate to affect subsequent filtering is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a soil sampler with roots for cultivating mycorrhizal seedlings. Background Art

[0002] Mycorrhizal fungi are a large class of fungi that can establish a mutualistic symbiotic relationship with plants. Arbuscular mycorrhizal fungi are one of the microorganisms in the soil that have the closest relationship with plants. They not only improve crop yield, quality and stress resistance, but also improve soil fertility.

[0003] A soil sampler disclosed in announcement number CN114199620A belongs to the field of soil sampling technology, and includes: a support frame, the support frame can be fixed on the ground, and the bottom of the support frame is provided with a support foot, and the support foot can be inserted into the ground soil for fixing; a sampling tube, the sampling tube is installed on the support frame, the sampling tube includes an inner tube and an outer tube, the inner tube is installed in the outer tube, and the outer wall of the outer tube is evenly provided with spiral blades; the inner tube is divided into two lobes, the two lobes of the inner tube can move relative to or oppositely to the left and right, and the soil sample can enter the inner tube when the two lobes of the inner tube are opened, and the soil sample can be kept in the inner tube when the two lobes of the inner tube are closed; a first screw, a threaded hole is provided at the middle position of the top of the support frame, the first screw is threadedly connected to the threaded hole, the top of the first screw is connected to a first rotating handle, and the bottom is fixedly connected to the top of the outer tube. The present invention can be conveniently screwed into the soil, improve the sampling efficiency, and can well keep the soil sample in the inner tube for sampling.

[0004] In the prior art, during cultivation, it is necessary to set up inoculation and non-inoculation treatments under different water and fertilizer conditions, and measure the quantitative morphological indicators and quality morphological indicators of the host tree seedlings' roots. Therefore, it is necessary to sample and test the soil. The above device stores the soil in an inner cylinder, and then seals the inner cylinder to take out the soil to ensure the integrity of the sample. However, in the actual collection process, gravel particles in the soil may be collected together. After being collected, these gravel particles may affect the subsequent detection of the soil, making the detection results non-standard. When encountering harder soil, it will also cause damage to the soil sampling device, thereby reducing the efficiency of soil sampling. Summary of the invention

[0005] The purpose of the present invention is to provide a soil sampler with root system for cultivating mycorrhizal seedlings, so as to solve the following technical problems:

[0006] (1) How to separate the gravel particles contained in the soil collection process;

[0007] (2) How to improve soil collection efficiency.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A root-system soil sampler for mycorrhizal seedling cultivation, comprising a sampling machine and:

[0010] A drilling assembly is arranged inside the sampling machine and is used for soil sampling;

[0011] A sampling chamber, arranged outside the sampler, for collecting soil;

[0012] The waste bin is set on the top of the sampler to collect gravel particles in the soil;

[0013] A filter assembly is arranged on the top of the sampler and is used for filtering the soil;

[0014] A collecting plate is arranged below the filter assembly and is used to collect the filtered soil;

[0015] A knocking component is arranged above the filter component and is used to drive the filter component to work;

[0016] A cleaning component, arranged on the filter component and the collecting plate, for cleaning waste and soil;

[0017] The driving motor is arranged on the top of the sampler and is used to drive the drilling component to work.

[0018] Furthermore, the drilling assembly includes a feed auger; the top of the feed auger is fixedly connected to a driving gear; the filtering assembly includes a filter plate and a vibration bin; the vibration bin is fixedly connected to the inner wall of the sampler; a vibration spring is fixedly connected inside the vibration bin; the end of the vibration spring away from the vibration bin is fixedly connected to a connecting column; the end of the connecting column away from the vibration bin is fixedly connected to the filter plate; the cleaning assembly includes a connecting plate; the connecting plate is fixedly connected to the driving gear; a scraper is fixedly connected to the bottom of the connecting plate; a telescopic groove is provided in the scraper; a telescopic spring is fixedly connected in the telescopic groove; the end of the telescopic spring away from the telescopic groove is fixedly connected to an abutment; the abutment abuts against the inner wall of the sampler; the waste bin is fixedly connected to the outer wall of the sampler and is arranged parallel to the filter plate.

[0019] Furthermore, the knocking assembly includes an L-plate; one end of the L-plate is fixedly connected to the driving gear; the end of the L-plate away from the driving gear is rotatably connected to a rotating column; a striking column is fixedly connected to the rotating column; a striking groove is provided in the striking column; a buffer spring is fixedly connected in the striking groove; a striking head is fixedly connected to the end of the buffer spring away from the striking groove; a pulley is rotatably provided on the end of the striking head away from the buffer spring; the end of the rotating column away from the striking column is fixedly connected to a connecting gear; the connecting gear is meshingly connected to the driving gear.

[0020] Furthermore, the collecting plate is arranged below the filter plate and is fixedly connected to the inner wall of the sampler; the sampling chamber is fixedly connected to the outer wall of the sampler and is arranged parallel to the collecting plate.

[0021] Furthermore, the driving motor is fixedly connected to the top of the sampler; one end of the top of the sampler away from the driving motor is rotatably connected to a driving shaft; the input end of the driving shaft is fixedly connected to the output end of the driving motor; and the end of the driving shaft away from the sampler is fixedly connected to the driving gear.

[0022] Furthermore, one end of the feeding auger away from the driving gear is fixedly connected with a drilling head; the drilling head is arranged outside the sampling machine.

[0023] Furthermore, a cleaning assembly is arranged above the collecting plate; the feeding auger is arranged in the middle of the sampler and passes through the collecting plate and the filter plate; an upper guard plate is fixedly connected to the edge of the collecting plate away from the sampler; the inner diameter of the upper guard plate is consistent with the size of the feeding auger; and a lower guard plate is fixedly connected to the bottom of the filter plate.

[0024] Furthermore, a handle is fixedly connected to the side wall of the sampler; and two groups of the handles are provided.

[0025] Beneficial effects of the present invention:

[0026] (1) The present invention can filter gravel particles in the soil by setting a filtering component, thereby preventing gravel particles from being detected together with the soil and causing non-standard detection results. In addition, by setting a scraper and an abutment plate, the filtered gravel particles can be conveniently collected, thereby preventing gravel particles from being trapped on the filter plate and affecting subsequent filtration.

[0027] (2) The present invention facilitates soil filtering and avoids clogging of the filter plate by setting up the knocking assembly. At the same time, the soil can be knocked by rotating the knocking column, which facilitates the filtering of harder soil.

[0028] (3) The present invention drives the driving shaft to rotate through a driving motor, and then drives the driving gear and the feed auger to rotate through the driving shaft, and uses the driving gear to drive the knocking component to work, thereby performing drilling and filtering work, and uses the feed auger to transport the soil to the inside of the sampler for filtering and sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of the sampling machine in the present invention;

[0031] Figure 2 It is a schematic diagram of the overall structure of the drilling assembly in the present invention;

[0032] Figure 3 is a front cross-sectional view of the sampling machine of the present invention;

[0033] Figure 4 It is a schematic diagram of the overall structure of the knocking component and the cleaning component in the present invention;

[0034] Figure 5 It is a cross-sectional view of the overall structure of the sampling machine in the present invention;

[0035] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0036] Figure 7 It is a schematic diagram of the overall structure of the vibration bin in the present invention;

[0037] Figure 8 It is a cross-sectional view of the overall structure of the vibration bin in the present invention;

[0038] Fig. 9 It is a cross-sectional view of the overall structure of the scraper in the present invention.

[0039] Description of the drawings: 1. Sampling machine; 11. Collecting plate; 12. Upper guard plate; 2. Drilling assembly; 21. Feeding auger; 22. Driving gear; 23. Drilling head; 3. Sampling chamber; 4. Waste chamber; 5. Knocking assembly; 51. Rotating column; 52. Striking column; 521. Striking groove; 522. Buffer spring; 523. Striking head; 524. Pulley; 53. Connecting gear; 54. L-plate; 6. Cleaning assembly; 61. Connecting plate; 62. Scraper; 63. Telescopic groove; 64. Telescopic spring; 65. Abutment; 7. Filter assembly; 71. Filter plate; 711. Lower guard plate; 72. Vibrating chamber; 721. Vibrating spring; 722. Connecting column; 8. Driving motor; 81. Driving shaft; 9. Handle. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 9 As shown, the present application provides a root soil sampler for mycorrhizal seedling cultivation, including a sampler 1, and also including:

[0042] A drilling assembly 2 is arranged inside the sampling machine 1 and is used for soil sampling;

[0043] A sampling chamber 3 is arranged outside the sampling machine 1 and is used to collect soil;

[0044] A waste bin 4 is arranged on the top of the sampler 1 and is used to collect gravel particles in the soil;

[0045] A filter assembly 7 is arranged on the top of the sampler 1 and is used for filtering soil;

[0046] A collecting plate 11 is provided below the filter assembly 7 and is used to collect the filtered soil;

[0047] The knocking assembly 5 is arranged above the filter assembly 7 and is used to drive the filter assembly 7 to work;

[0048] A cleaning component 6, arranged on the filter component 7 and the collecting plate 11, is used to clean waste and soil;

[0049] A driving motor 8 is arranged on the top of the sampling machine 1 and is used to drive the drilling assembly 2 to work;

[0050] During operation, in the prior art, during cultivation, it is necessary to set inoculation and non-inoculation treatments under different water and fertilizer conditions to measure the quantitative morphological indicators and quality morphological indicators of the host tree seedlings' roots. Therefore, it is necessary to sample and test the soil. The above device stores the soil in an inner cylinder, and then seals the inner cylinder to take out the soil to ensure the integrity of the sample. However, in the actual collection process, gravel particles in the soil may be collected together. After being collected, these gravel particles may affect the subsequent detection of the soil, making the detection results non-standard. In addition, when encountering harder soil, the soil sampling device may be damaged, thereby reducing the efficiency of soil sampling. In order to prevent such incidents from happening, first, the sampler 1 is moved to the sampling location, and then the driving motor 8 is used to drive the drilling component 2 to work. While drilling, the soil is transported to the top of the sampler 1 through the drilling component 2, and then the soil falls onto the filter plate 71. After the soil reaches the filter plate 71, the knocking component 5 is driven to work, and the soil is filtered under the action of knocking. The filtered soil will fall onto the collecting plate 11 below through the filtering component 7, and then the filtered soil on the collecting plate 11 will be collected into the sampling bin 3 through the cleaning component 6. The stone particles intercepted by the filter plate 71 are also collected into the waste bin 4 by the cleaning component 6.

[0051] like Figure 4-Figure 6As shown, the drilling assembly 2 includes a feeding auger 21; the top of the feeding auger 21 is fixedly connected to a driving gear 22; the filtering assembly 7 includes a filter plate 71 and a vibration bin 72; the vibration bin 72 is fixedly connected to the inner wall of the sampler 1; a vibration spring 721 is fixedly connected in the vibration bin 72; the end of the vibration spring 721 away from the vibration bin 72 is fixedly connected to a connecting column 722; the end of the connecting column 722 away from the vibration bin 72 is fixedly connected to the filter plate 71; the cleaning assembly 6 includes a connecting plate 61; the connecting plate 61 is fixedly connected to the driving gear 22; a scraper 62 is fixedly connected to the bottom of the connecting plate 61; a telescopic groove 63 is provided in the scraper 62; a telescopic spring 64 is fixedly connected in the telescopic groove 63; the end of the telescopic spring 64 away from the telescopic groove 63 is fixedly connected to a butt joint 65; the butt joint 65 abuts against the inner wall of the sampler 1; the waste bin 4 is fixedly connected to the outer wall of the sampler 1 and is arranged parallel to the filter plate 71;

[0052] During operation, when the drilling assembly 2 is drilling a hole in the soil, the soil will be vertically transported to the top of the sampler 1 through the rotation of the feeding auger 21, and then the soil will fall onto the filter plate 71. At this time, the knocking assembly 5 is driven to work, and the filter plate 71 will be struck during the operation. During the striking process, the filter plate 71 will squeeze the vibration spring 721, and the vibration spring 721 will be released after the squeezing. During the squeezing and releasing process, the filter plate 71 will be driven to shake up and down, and the soil will be filtered during the shaking. At the same time, the feeding auger 21 drives the scraper 62 on the connecting plate 61 to rotate through the driving gear 22. When rotating, the scraper 62 can sweep the stone particles trapped on the filter plate 71 into the waste bin 4. During the cleaning process, the stone particles will be swept to the edge of the filter plate 71. Due to the limitation of the sampler 1, the length of the scraper 62 cannot be increased, and the stone cannot be further moved. The particles are swept into the waste bin 4. The abutment 65 set at the end of the scraper 62 can solve this problem. During cleaning, the abutment 65 abuts against the inner wall of the sampler 1. When the abutment 65 comes to the waste bin 4, since the sampler 1 is located at the waste bin 4 and a slot is opened, the abutment 65 loses its squeeze when it reaches the slot, thereby releasing the internal telescopic spring 64, and the abutment 65 is popped out by the telescopic spring 64. After popping out, the scraper 62 extends out of the sampler 1. When moving again, the stone particles at the edge of the filter plate 71 can be swept into the waste bin 4 through the abutment 65, so as to realize the cleaning of waste. Through the setting of the filter assembly 7, the stone particles in the soil can be filtered to avoid the stone particles being detected together with the soil, resulting in non-standard test results. In addition, through the setting of the scraper 62 and the abutment plate, the filtered stone particles can be conveniently collected to avoid the stone particles being trapped on the filter plate 71 and affecting subsequent filtration.

[0053] like Figure 4 and Figure 5 As shown, the knocking assembly 5 includes an L-plate 54; one end of the L-plate 54 is fixedly connected to the driving gear 22; the end of the L-plate 54 away from the driving gear 22 is rotatably connected to a rotating column 51; a striking column 52 is fixedly connected to the rotating column 51; a striking groove 521 is provided in the striking column 52; a buffer spring 522 is fixedly connected in the striking groove 521; a striking head 523 is fixedly connected to the end of the buffer spring 522 away from the striking groove 521; a pulley 524 is rotatably provided on the end of the striking head 523 away from the buffer spring 522; the end of the rotating column 51 away from the striking column 52 is fixedly connected to a connecting gear 53; the connecting gear 53 is meshingly connected to the driving gear 22;

[0054] During operation, the rotating column 51 is connected to the driving gear 22 through the L plate 54, and the rotating column 51 is rotated by meshing the connecting gear 53 with the driving gear 22. When the feeding auger 21 rotates, the rotating column 51 and the striking column 52 are driven to rotate. When the striking column 52 rotates, the striking head 523 strikes and squeezes the filter plate 71. When the striking head 523 contacts the filter plate 71, the pulley 524 can reduce the friction during contact, so as to avoid damage to the striking head 523 caused by long-term striking. When the filter plate 71 is struck, the vibration spring 721 is pressed. The vibration spring 721 is then released to drive the filter plate 71 to shake, and the soil on the filter plate 71 is filtered during the shaking process. The shaking can prevent the soil from getting stuck on the filter plate 71 and affecting subsequent filtering. When the rotating column 51 drives the striking column 52 to rotate, the harder soil can be knocked to break the soil for easy filtering. The setting of the knocking component 5 can facilitate the filtering of the soil and avoid clogging of the filter plate 71. At the same time, the soil can be knocked by rotating the striking column 52 to facilitate the filtering of harder soil.

[0055] like Figure 3 As shown, the collecting plate 11 is arranged below the filter plate 71 and is fixedly connected to the inner wall of the sampler 1; the sampling chamber 3 is fixedly connected to the outer wall of the sampler 1 and is arranged parallel to the collecting plate 11;

[0056] During operation, the filtered soil will fall through the filter plate 71 onto the collecting plate 11 below, and then the soil on the collecting plate 11 will be scraped into the sampling bin 3 for collection through the scraper 62, wherein the structure of the scraper 62 is consistent with that of the scraper 62 on the filter plate 71.

[0057] like Figure 3 As shown, the driving motor 8 is fixedly connected to the top of the sampler 1; the end of the top of the sampler 1 away from the driving motor 8 is rotatably connected to the driving shaft 81; the input end of the driving shaft 81 is fixedly connected to the output end of the driving motor 8; the end of the driving shaft 81 away from the sampler 1 is fixedly connected to the driving gear 22;

[0058] During operation, the driving motor 8 drives the driving shaft 81 to rotate, and then the driving shaft 81 drives the driving gear 22 and the feeding auger 21 to rotate, and the driving gear 22 drives the knocking component 5 to work, thereby performing drilling and filtering work, and the feeding auger 21 is used to transport the soil to the inside of the sampler 1 for filtering and sampling.

[0059] like Figure 1 As shown, the end of the feeding auger 21 away from the driving gear 22 is fixedly connected with a drilling head 23; the drilling head 23 is arranged outside the sampling machine 1;

[0060] During operation, first, the sampler 1 is moved to the soil to be sampled, and then the drilling head 23 is inserted into the ground and driven to rotate. The drilling head 23 mines the ground during rotation, and then the drilling head 23 continues to descend. After descending to a certain depth, the feeding auger 21 contacts the soil. After contact, the feeding auger 21 collects the soil and transports it to the sampler 1.

[0061] like Figure 5 and Figure 7 As shown, a cleaning assembly 6 is arranged above the collecting plate 11; the feeding auger 21 is arranged in the middle of the sampler 1 and penetrates the collecting plate 11 and the filter plate 71; an upper guard plate 12 is fixedly connected to the edge of the collecting plate 11 away from the sampler 1; the inner diameter of the upper guard plate 12 is consistent with the size of the feeding auger 21; a lower guard plate 711 is fixedly connected to the bottom of the filter plate 71;

[0062] During operation, the upper guard plate 12 and the lower guard plate 711 can restrict the soil when the feeding auger 21 is feeding materials, so as to prevent the soil from directly falling onto the collecting plate 11 during the feeding auger 21 feeding.

[0063] like Figure 1 As shown, a handle 9 is fixedly connected to the side wall of the sampler 1; the handle 9 is provided in two groups;

[0064] During operation, the sampler 1 can be fixed by the handle 9 to prevent the sampler 1 from tipping over during the sampling process.

[0065] Working principle of the present invention: In the prior art, during cultivation, it is necessary to set inoculation and non-inoculation treatments under different water and fertilizer conditions to measure the quantitative morphological indicators and quality morphological indicators of the host tree seedlings' roots. Therefore, it is necessary to sample and test the soil. The above device stores the soil in an inner cylinder, and then seals the inner cylinder to take out the soil to ensure the integrity of the sample. However, in the actual collection process, gravel particles in the soil may be collected together. After being collected, these gravel particles may affect the subsequent detection of the soil, making the detection results non-standard. In addition, when encountering harder soil, the soil sampling device may be damaged, thereby reducing the soil sampling efficiency. Efficiency. In order to prevent such incidents from happening, first, the sampler 1 is moved to the sampling location, and then the driving motor 8 is used to drive the drilling component 2 to work. While drilling, the soil is transported to the top of the sampler 1 through the drilling component 2, and then the soil falls onto the filter plate 71. After the soil reaches the filter plate 71, the knocking component 5 is driven to work, and the soil is filtered under the action of knocking. The filtered soil will fall onto the collecting plate 11 below through the filtering component 7, and then the filtered soil on the collecting plate 11 will be collected into the sampling bin 3 through the cleaning component 6. The stone particles intercepted by the filter plate 71 are also collected into the waste bin 4 by the cleaning component 6.

[0066] Among them, when the drilling component 2 is drilling a hole in the soil, the soil will be vertically transported to the top of the sampler 1 through the rotation of the feeding auger 21, and then the soil will fall onto the filter plate 71. At this time, the knocking component 5 is driven to work, and the filter plate 71 will be hit during the work process. During the hitting process, the filter plate 71 will squeeze the vibration spring 721, and the vibration spring 721 will be released after the squeezing. During the squeezing and releasing process, the filter plate 71 will be driven to shake up and down, and the soil will be filtered during the shaking. At the same time, the feeding auger 21 drives the scraper 62 on the connecting plate 61 to rotate through the driving gear 22. When rotating, the scraper 62 can sweep the stone particles trapped on the filter plate 71 into the waste bin 4. During the cleaning process, the stone particles will be swept to the edge of the filter plate 71. Due to the limitation of the sampler 1, the length of the scraper 62 cannot be increased, and the stone cannot be further moved. The particles are swept into the waste bin 4. The abutment 65 set at the end of the scraper 62 can solve this problem. During cleaning, the abutment 65 abuts against the inner wall of the sampler 1. When the abutment 65 comes to the waste bin 4, since the sampler 1 is located at the waste bin 4 and a slot is opened, the abutment 65 loses its squeeze when it reaches the slot, thereby releasing the internal telescopic spring 64, and the abutment 65 is popped out by the telescopic spring 64. After popping out, the scraper 62 extends out of the sampler 1. When moving again, the stone particles at the edge of the filter plate 71 can be swept into the waste bin 4 through the abutment 65, so as to realize the cleaning of waste. Through the setting of the filter assembly 7, the stone particles in the soil can be filtered to avoid the stone particles being detected together with the soil, resulting in non-standard test results. In addition, through the setting of the scraper 62 and the abutment plate, the filtered stone particles can be conveniently collected to avoid the stone particles being trapped on the filter plate 71 and affecting subsequent filtration.

[0067] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A root soil sampler for mycorrhizal seedling cultivation, comprising a sampler (1), characterized in that: Also includes: A drilling assembly (2), arranged inside the sampling machine (1), and used for soil sampling; A sampling chamber (3), arranged outside the sampling machine (1) and used for collecting soil; A waste bin (4) is arranged on the top of the sampling machine (1) and is used to collect gravel particles in the soil; A filter assembly (7) is arranged on the top of the sampler (1) and is used for filtering soil; A collecting plate (11) is arranged below the filtering assembly (7) and is used to collect the filtered soil; A knocking assembly (5) is arranged above the filter assembly (7) and is used to drive the filter assembly (7) to work; A cleaning component (6) is arranged on the filter component (7) and the collecting plate (11) and is used for cleaning waste and soil; A driving motor (8) is arranged on the top of the sampling machine (1) and is used to drive the drilling assembly (2) to work.

2. The root soil sampler for mycorrhizal seedling cultivation according to claim 1, characterized in that: The drilling assembly (2) comprises a feeding auger (21); a driving gear (22) is fixedly connected to the top of the feeding auger (21); the filtering assembly (7) comprises a filtering plate (71) and a vibration chamber (72); the vibration chamber (72) is fixedly connected to the inner wall of the sampling machine (1); a vibration spring (721) is fixedly connected inside the vibration chamber (72); a connecting column (722) is fixedly connected to one end of the vibration spring (721) away from the vibration chamber (72); the connecting column (722) is fixedly connected to the filtering plate (71) at one end away from the vibration chamber (72); The processing component (6) comprises a connecting plate (61); the connecting plate (61) is fixedly connected to the driving gear (22); a scraper (62) is fixedly connected to the bottom of the connecting plate (61); a telescopic groove (63) is provided in the scraper (62); a telescopic spring (64) is fixedly connected in the telescopic groove (63); an abutment (65) is fixedly connected to the end of the telescopic spring (64) away from the telescopic groove (63); the abutment (65) abuts against the inner wall of the sampling machine (1); the waste bin (4) is fixedly connected to the outer wall of the sampling machine (1) and is arranged parallel to the filter plate (71).

3. The root soil sampler for mycorrhizal seedling cultivation according to claim 2, characterized in that: The knocking assembly (5) comprises an L-plate (54); one end of the L-plate (54) is fixedly connected to the driving gear (22); the end of the L-plate (54) away from the driving gear (22) is rotatably connected to a rotating column (51); a striking column (52) is fixedly connected to the rotating column (51); a striking groove (521) is provided in the striking column (52); a buffer spring (522) is fixedly connected in the striking groove (521); a striking head (523) is fixedly connected to the end of the buffer spring (522) away from the striking groove (521); a pulley (524) is rotatably provided on the end of the striking head (523) away from the buffer spring (522); the end of the rotating column (51) away from the striking column (52) is fixedly connected to a connecting gear (53); the connecting gear (53) is meshingly connected to the driving gear (22).

4. The root soil sampler for mycorrhizal seedling cultivation according to claim 3, characterized in that: The collecting plate (11) is arranged below the filter plate (71) and is fixedly connected to the inner wall of the sampling machine (1); the sampling chamber (3) is fixedly connected to the outer wall of the sampling machine (1) and is arranged parallel to the collecting plate (11).

5. The root soil sampler for cultivating mycorrhizal seedlings according to claim 4, characterized in that: The driving motor (8) is fixedly connected to the top of the sampler (1); one end of the top of the sampler (1) away from the driving motor (8) is rotatably connected to a driving shaft (81); the input end of the driving shaft (81) is fixedly connected to the output end of the driving motor (8); and the end of the driving shaft (81) away from the sampler (1) is fixedly connected to a driving gear (22).

6. The root soil sampler for cultivating mycorrhizal seedlings according to claim 5, characterized in that: One end of the feeding auger (21) away from the driving gear (22) is fixedly connected to a drilling head (23); the drilling head (23) is arranged outside the sampling machine (1).

7. The root soil sampler for cultivating mycorrhizal seedlings according to claim 6, characterized in that: A cleaning assembly (6) is arranged above the collecting plate (11); the feeding auger (21) is arranged in the middle of the sampling machine (1) and penetrates the collecting plate (11) and the filter plate (71); an upper guard plate (12) is fixedly connected to the edge of the collecting plate (11) away from the sampling machine (1); the inner diameter of the upper guard plate (12) is consistent with the size of the feeding auger (21); and a lower guard plate (711) is fixedly connected to the bottom of the filter plate (71).

8. The root soil sampler for cultivating mycorrhizal seedlings according to claim 7, characterized in that: A handle (9) is fixedly connected to the side wall of the sampling machine (1); two groups of the handles (9) are provided.

Images