Soil testing apparatus based on organic fertilization

Abstract

The application belongs to the technical field of detection equipment, and particularly relates to a soil detection equipment based on organic fertilizer application, which comprises a mobile vehicle, a detector and a sampling pipe; further comprises a rotating disc, which is rotationally connected in the mobile vehicle and connected with a first motor in the mobile vehicle; the rotating disc is provided with the sampling pipe on one side, and the opening of one end of the sampling pipe faces the soil; a vibration table and a slide rod are slidably connected through a spring, so that the vibration of the vibration table is not affected by the slide rod; the sampling pipe is connected with a first electric push rod through a sliding block, so that the vibration table can drive the sampling pipe to vibrate up and down through a vibrating plate; the sampling pipe drives the sample to vibrate up and down to generate collision, thereby crushing the columnar sample, reducing the agglomeration in the sample, separating the soil and the stone through vibration, and allowing the soil to pass through the filter screen and the stone to be intercepted in the sampling pipe by the filter screen, so as to accelerate the sample screening efficiency, shorten the detection time and improve the detection efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of detection equipment, and particularly relates to soil detection equipment based on organic fertilizer application. BACKGROUND

[0002] Soil detection based on organic fertilizer application refers to a process of measuring and analyzing indexes such as physical and chemical properties, nutrient content and microbial state of soil by professional equipment and methods before, during and after the application of organic fertilizer; the core goal is to evaluate the fertilization effect, avoid the fertilization risk and provide a basis for scientific adjustment of the fertilization scheme around the characteristics of organic fertilizer; the detection equipment includes a soil organic matter rapid detector which adopts potassium dichromate oxidation colorimetry to calculate the content by detecting the color change of organic matter after oxidation, for example, taking air-dried soil samples, grinding and sieving; adding reagents to perform oxidation reaction; placing the reacted solution into the instrument to automatically display the organic matter content through colorimetric or spectral analysis.

[0003] In the detection, in order to pursue timeliness, personnel usually carry portable detection equipment including detection instruments and operation tools to carry out detection work on site, but after soil sampling, since the sampled soil is 0-30 cm deep from the ground surface, a large amount of sand, gravel and other impurities are easily mixed in the soil sample, or the soil loses water to form clumps, which makes it difficult to grind the soil sample, and the grinding intensity needs to be increased, which leads to the fact that other soil samples are easily ground too fine, resulting in low organic matter measurement value in detection; and at the same time of increasing the grinding intensity, the sand and gravel impurities continuously rub against the grinding surface, causing the grinding surface to be damaged and the debris to enter the soil sample, which not only increases the powder impurities in the sample, but also affects the detection result due to the existence of the debris. SUMMARY

[0004] In order to make up for the deficiencies of the prior art and solve the above technical problems, the application provides soil detection equipment based on organic fertilizer application.

[0005] The application adopts the technical scheme that the application provides soil detection equipment based on organic fertilizer application, which comprises a mobile vehicle, a detection instrument and a sampling pipe.

[0006] The rotating disc is rotationally connected in the mobile vehicle and connected with a first motor in the mobile vehicle, one side of the rotating disc is provided with the sampling pipe, one end of the sampling pipe is open to the soil, the other end is slidingly connected with a sliding block through a spring, and one side of the sliding block is connected with a first electric push rod mounted on the rotating disc; the inner wall of the sampling pipe is uniformly provided with sampling grooves, and the sampling grooves are slidingly connected with sampling blocks through springs, the sampling blocks extend out of the sampling grooves and the side of the sampling pipe opening is a slope, and the sampling pipe is provided with a filter screen.

[0007] The processing tank is installed on one side of the rotating disc and is communicated with the detector at the bottom, one side of the processing tank is provided with a tank opening, and the inner wall of the other side is slidably connected with a sliding rod, one end of the sliding rod is connected with the second electric push rod installed on the processing tank, the other end is slidably connected with a vibrating table through a spring, and the vibrating table is installed with a vibrating device, one end of the vibrating table away from the sliding rod is provided with a vibrating rod, and the other end of the vibrating rod away from the vibrating table is provided with a vibrating plate, and the outer circumferential surface of the vibrating plate is matched with the circular inner wall of the sampling pipe; a grinding pipe is arranged in the processing tank, and a grinding rod is rotatably connected with one side of the grinding pipe, one side of the grinding rod extends into and contacts the inner wall of the grinding pipe, a second motor is arranged in the processing tank and connected with the grinding rod, a heater and a temperature and humidity sensor are arranged in the grinding pipe, and the temperature and humidity sensor is connected with the detector.

[0008] Preferably, the inner wall of the grinding pipe is inclined, and the inner wall near one end of the grinding pipe is a plane, the plane inner wall of the grinding pipe is located at the low part of the inclined inner wall, the plane inner wall of the grinding pipe is uniformly provided with a rubbing groove, and the rubbing plate is slidably connected with the plane of the grinding pipe, and one end of the rubbing plate is connected with the third electric push rod installed on the grinding pipe; a visual detector is installed in the moving vehicle, and the probe of the visual detector is installed on the sliding rod; the vibrating plate is slidably connected with an extrusion pipe through a spring near the top position, the extrusion pipe is provided with an extrusion capsule, the vibrating plate is provided with an extrusion block, one end of the extrusion block extends into the extrusion pipe and is located at one end of the extrusion capsule, the other end of the extrusion capsule is provided with a water jet pipe, and the extrusion capsule stores distilled water.

[0009] Preferably, the vibrating plate is slidably connected with a collision block through a spring near one side of the vibrating rod, and the collision block is close to the mesh.

[0010] Preferably, the vibrating plate is provided with a spiral groove on the side away from the vibrating rod, and a spiral shaft is slidably connected in the spiral groove, the spiral shaft is close to the filter screen, and the two ends of the spiral shaft are located on the two sides of the vibrating plate, and a spring is arranged between the vibrating plate and one end of the spiral shaft.

[0011] Preferably, a lubricating block is rotatably connected to one end of the spiral shaft, and one side of the lubricating block contacts the plane inner wall of the sampling pipe.

[0012] Preferably, the spiral shaft is provided with a cleaning brush at the edge, and the cleaning brush is inserted into the mesh of the filter screen; a stop rod is arranged on the lubricating block and penetrates the vibrating plate, and one side of the stop rod contacts the inner wall of the sampling pipe.

[0013] Preferably, an extrusion rod is slidably connected in the plane inner wall of the grinding pipe, a blocking groove is uniformly arranged in the rubbing groove, a blocking piece is slidably connected in the blocking groove through a spring, and the inclined surface of one side of the extrusion rod contacts the blocking piece; a linkage rod is hingedly connected to the top of the extrusion rod through a torsion spring, and the linkage rod contacts one end of the rubbing plate.

[0014] Preferably, one side of the grinding rod is provided with a grinding plate, and the grinding plate is arranged obliquely, and one side of the grinding plate contacts the inner wall of the grinding pipe; a receiving groove is formed on the inner wall of the grinding pipe, and the receiving groove is away from the plane inner wall of the grinding pipe.

[0015] Preferably, one end of the grinding plate is provided with a guide block, and one end of the grinding pipe is provided with a guide strip, the guide block slides on the guide strip, and the guide strip is wavy; one side of the grinding plate away from the grinding rod is hinged with a pressing strip through a torsion spring, and one side of the pressing strip away from the grinding plate is a blade edge, and every two pressing strips are hinged at the head and tail to form a group through a torsion spring, and a plurality of groups are distributed on one side of the grinding plate.

[0016] Preferably, one end of the grinding rod is rotatably connected with a pressing wheel, and one end of the plane inner wall of the grinding pipe is provided with a collecting frame, and the pressing wheel rolls in the collecting frame.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The soil detection equipment based on organic fertilizer fertilization, the vibration table and the slide rod are connected through the spring sliding connection, so that the vibration of the vibration table is not affected by the slide rod, and the sampling pipe is connected with the first electric push rod through the sliding block, so that the vibration table can drive the sampling pipe to vibrate up and down through the vibration plate, the sampling pipe drives the sample to vibrate up and down to generate collision, the columnar sample is broken, the agglomeration in the sample is reduced, the soil and the stone are separated through vibration at the same time, the soil passes through the filter screen, and the stone is intercepted in the sampling pipe by the filter screen, so that the sample screening efficiency is accelerated, the detection time is shortened, and the detection efficiency is improved.

[0019] 2. The soil detection equipment based on organic fertilizer fertilization, the sampling pipe is vibrated to shake off the soil adhered to the inner wall, the cleanliness of the inner wall of the sampling pipe is improved, and cross contamination in the multiple sampling process is avoided; moreover, the soil is sticky, and when passing through the filter screen, the soil is adhered to the filter screen to form blockage, the filter screen is vibrated by the vibration of the sampling pipe, and the blocked soil is shaken off by the vibration of the filter screen, so that the filtering capacity of the filter screen is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below with reference to the drawings.

[0021] Figure 1 is a perspective view of the present application;

[0022] Figure 2 is a partial sectional view of the present application in the side view direction;

[0023] Figure 3 is a partial sectional view of the present application in the front view direction;

[0024] Figure 4 is Figure 2 is a partial enlarged view of the opening of the sampling pipe;

[0025] Figure 5 yes Figure 2 Internal diagram of the grinding tube;

[0026] Figure 6 This is a cross-sectional view of the grinding tube from the front view;

[0027] Figure 7 This is a schematic diagram showing how the kneading board moves the squeezing rod via a linkage rod;

[0028] Figure 8 This is a schematic diagram of the grinding plate pressing the extrusion strip;

[0029] Figure 9 This is a diagram illustrating the cleaning brush for cleaning the filter screen;

[0030] Figure 10 It is a 3D view of the extruded block.

[0031] In the diagram: 1. Mobile vehicle; 11. Detector; 12. Sampling tube; 13. Turntable; 14. Motor 1; 15. Slider; 16. Electric actuator 1; 17. Sampling trough; 18. Sampling block; 19. Filter screen; 2. Processing tank; 21. Slide rod; 22. Electric actuator 2; 23. Vibration table; 24. Vibration device; 25. Vibration rod; 26. Vibration plate; 27. Grinding tube; 28. Grinding rod; 29. ​​Motor 2; 3. Kneading trough; 31. Kneading board; 32. Electric actuator 3; 33. Vision detector; 34. Squeezing tube; 35. Squeezing bladder; 36. Squeezing block; 37. Water spray pipe; 38. Collision block; 39. Spiral groove; 40. Spiral shaft; 41. Lubrication block; 42. Cleaning brush; 43. Baffle; 44. Squeezing rod; 45. Baffle; 46. Linkage rod; 47. Grinding plate; 48. Collection trough; 49. Guide block; 51. Guide strip; 52. Squeezing strip; 53. Squeezing wheel; 54. Collection frame. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1:

[0034] To effectively solve the above problems, see the attached diagram in the instruction manual. Figures 1-10 As shown, the soil testing equipment based on organic fertilizer application includes a mobile vehicle 1, a testing instrument 11, and a sampling tube 12; it also includes:

[0035] A turntable 13 is rotatably connected to a mobile vehicle 1 and connected to a first motor 14 inside the mobile vehicle 1. A sampling tube 12 is provided on one side of the turntable 13. One end of the sampling tube 12 opens towards the soil, and the other end is slidably connected to a slider 15 via a spring. One side of the slider 15 is connected to a first electric push rod 16 installed on the turntable 13. Sampling grooves 17 are evenly provided on the inner wall of the sampling tube 12, and a sampling block 18 is slidably connected to the sampling groove 17 via a spring. The side of the sampling block 18 that extends out of the sampling groove 17 and faces the opening of the sampling tube 12 is inclined. A filter screen 19 is provided on the sampling tube 12.

[0036] Processing tank 2 is installed on one side of turntable 13 and its bottom is connected to detector 11. One side of processing tank 2 has an opening, and the inner wall of the other side is slidably connected to a slide rod 21. One end of the slide rod 21 is connected to a second electric push rod 22 installed on processing tank 2, and the other end is slidably connected to a vibration table 23 via a spring. A vibration device 24 is installed on the vibration table 23. A vibration rod 25 is provided at the end of the vibration table 23 away from the slide rod 21, and a vibration plate 26 is provided at the end of the vibration rod 25 away from the vibration table 23. The outer circumferential surface of the vibration plate 26 matches the circular inner wall of the sampling tube 12. The device contains a grinding tube 27, with a grinding rod 28 rotatably connected to one side of the grinding tube 27. One side of the grinding rod 28 extends into and contacts the inner wall of the grinding tube 27. A second motor 29 is installed inside the processing tank 2 and connected to the grinding rod 28. A heater and a temperature and humidity sensor are installed inside the grinding tube 27. The temperature and humidity sensor is connected to the detector 11. In addition to the temperature and humidity sensor, a particle size sensor, a pressure sensor, an optical sensor, and a weight sensor can also be added to address key issues such as whether the particles meet the standards, whether the grinding is sufficient, whether impurities remain, and whether the sampling is accurate.

[0037] Adding temperature and humidity sensors in conjunction with a heater during the soil grinding and granulation process, along with the sample temperature and humidity control in real time, solves the detection error problem caused by uncontrolled temperature and humidity in traditional processing. This ensures the accuracy of indicators for organic fertilizer soil testing. For example, core indicators for organic fertilizer soil testing are temperature-sensitive; excessively high temperatures accelerate organic matter oxidation, while excessively low temperatures may cause sample agglomeration after grinding. The combination of temperature and humidity sensors and a heater achieves constant temperature control, improving detection accuracy. Furthermore, soil moisture is a key factor affecting grinding and granulation effects and subsequent detection reactions. Excessive dryness leads to electrostatic agglomeration of the sample, while excessive moisture causes the sample to stick to the instrument tubing. The addition of temperature and humidity sensors can control humidity levels. The closed-loop control is effective; moreover, different detectors have specific requirements for the temperature and humidity of the sample entering the instrument. For example, some rapid detectors require a sample temperature of 20-25℃ and a humidity of 10%-15%, otherwise it will affect the optical path detection or the sample introduction in the pipeline. The combination of temperature and humidity sensors and heaters can achieve a precise match between the sample state and the instrument requirements. In addition, through the combined action of temperature and humidity sensors and heaters, firstly, it protects volatile indicators such as organic matter and available nitrogen from loss, ensuring the accuracy of the detection values; secondly, it makes the particles of the ground sample uniform, without agglomeration or sticking, and smoothly adapts to the sample introduction requirements of the detector; thirdly, it reduces the error caused by temperature and humidity fluctuations, improves the repeatability of the detection, and can effectively avoid the masking or exaggeration of the fertilizer effect of organic fertilizer due to uncontrolled temperature and humidity, further improving the accuracy of the detection.

[0038] The mobile vehicle 1 facilitates the loading of testing instruments and operating tools by personnel and their movement to the field for testing. The testing instrument 11 is a conventional measuring instrument, including instruments such as a multi-parameter soil analyzer, suitable for environments such as planting bases and parks. It can simultaneously detect multiple parameters such as nutrients, moisture, pH, conductivity, and heavy metals to complete the testing of soil fertilized with organic fertilizer. The filter screen 19 is a conventional hard filter screen used for sieving and filtering soil. The vibration device 24 is a conventional vibration generator. The vibration device 24 drives the vibration rod 25 to vibrate, and the vibration rod 25 drives the sampling tube 12 to vibrate through the vibration plate 26, realizing the effect of the vibration device 24 indirectly driving the soil sample to vibrate and sieve. The second motor 29 drives the grinding rod 28 to swing back and forth along the grinding tube 27. For example, the second motor 29 drives the grinding rod 28 to swing clockwise along the inner wall of the grinding tube 27 to a 60-degree angle, then swings counterclockwise to return to the vertical position, and then swings counterclockwise to a 60-degree angle again before returning to the vertical position.

[0039] Specific workflow: During testing, sampling begins first. Motor 14 drives turntable 13 to rotate, which in turn rotates sampling tube 12 to a vertical position facing the soil. Then, electric actuator 16 lowers sampling tube 12 and inserts it into the soil, obtaining a cylindrical soil sample inside. Subsequently, electric actuator 16 raises sampling tube 12, which in turn raises the soil sample. The soil sample is prevented from falling due to friction from the inner wall of sampling tube 12. Furthermore, the sampling block 18 is designed with a sloped bottom to facilitate the squeezing of the sample during descent. The sampling tube 12 crushes and breaks up surface soil clumps, reducing the impact of soil clumps on test results and improving accuracy. The top of the sampling block 18 is a small-angle slope, allowing it to be distributed around the obtained columnar sample to lift it. Combined with the friction between the sample and the inner wall of the sampling tube 12, this reduces sample drop and ensures the sampling volume meets standards, thereby improving sampling efficiency and facilitating testing. Furthermore, an electrically operated telescopic plate can be installed at the opening of the sampling tube 12 to close and open the opening, ensuring the sample does not fall during ascent.

[0040] After sampling, motor 14 drives the sampling tube 12 to rotate horizontally via turntable 13, with the sampling tube 12 facing the opening of the processing tank 2. Electric actuator 16 moves the sampling tube 12 through the opening into the processing tank 2 until it stops at the center of the grinding tube 27. Electric actuator 22 then moves the sliding rod 21, which, via vibration table 23, drives the vibrating rod 25 and vibrating plate 26 into the sampling tube 12. The outer surface of the vibrating plate 26 is in close contact with the inner wall of the sampling tube 12. Then, vibration device 24 is activated, causing vibration table 23 to vibrate. The rod 21 is slidably connected by a spring, so that the vibration of the vibration table 23 is not affected by the sliding rod 21. The sampling tube 12 is connected to the first electric push rod 16 through the slider 15, so that the vibration table 23 can drive the sampling tube 12 to vibrate up and down through the vibration plate 26. The sampling tube 12 drives the sample to vibrate up and down and generate collisions, which breaks up the columnar sample, reduces the clumps in the sample, and separates the soil and stones through vibration. The soil passes through the filter screen 19, while the stones are intercepted by the filter screen 19 inside the sampling tube 12, which speeds up the sample screening efficiency, shortens the detection time, and improves the detection efficiency.

[0041] Furthermore, the sampling tube 12 vibrates to dislodge the soil adhering to its inner wall, improving the cleanliness of the inner wall of the sampling tube 12 and avoiding cross-contamination during multiple sampling processes. Moreover, because soil is sticky, it will adhere to the filter screen 19 and form a blockage when passing through the filter screen 19. The vibration of the sampling tube 12 drives the filter screen 19 to vibrate, and the filter screen 19 dislodges the blockage soil through vibration, maintaining the filtration capacity of the filter screen 19.

[0042] While the vibrating plate 26 drives the sampling tube 12 to vibrate, the slide rod 21 drives the vibrating plate 26 to continue moving and extending into the sampling tube 12. The vibrating plate 26 scrapes off the soil adhering to the inner wall of the sampling tube 12 and shakes it onto the filter screen 19. While cleaning the sampling tube 12, the vibrating plate 26 squeezes the soil as it passes through the filter screen 19, causing it to pass through the filter screen 19, thus speeding up the sample screening process and improving the sample detection efficiency.

[0043] After sample sieving, impurities remain in sampling tube 12, while the sample falls onto the inner wall of grinding tube 27. A heater inside grinding tube 27 indirectly heats the sieved sample by heating the grinding tube 27 itself. The small particle size after sieving accelerates the heating process, ensuring the sample meets testing standards. As the sample loses some moisture during heating, motor 29 drives the grinding rod 28 via a conventional belt drive. For example, a drive belt is fitted around the output end of motor 29 and the outer circumference of grinding tube 27, connecting the drive belt to the grinding rod 28. The grinding rod 28 is slidably connected to grinding tube 27. Motor 29 drives the grinding rod 28 via the drive belt. The grinding rod 28 swings back and forth on the grinding tube 27, and the sample falls into the grinding tube 27 from the center position, which can directly enter the grinding component, reducing the dispersion and residue of the sample in the grinding tube 27. For example, if the sample is scattered to the edge of the grinding tube 27, it may not be fully ground. At the same time, the central feeding can make the sample evenly stressed, avoiding local over-grinding or under-grinding, and the final soil particles are more uniform in size, which can meet the requirements of sample uniformity during testing. After the grinding rod 28 crushes the sample along the inner wall of the grinding tube 27, the sample falls to the bottom of the processing tank 2 and enters the detector 11, where personnel complete the testing of the obtained sample.

[0044] Traditional soil sample processing requires multiple steps, including sieving, transferring, grinding, drying, and testing. Each step can lead to sample loss or contamination and increases the number of cleaning tools required. The above-mentioned process integrates these steps into a continuous operation. Samples can be transferred from the sampling tube 12 to the grinding tube 27 without manual handling, reducing the chance of sample contact with the outside environment and lowering the risk of contamination. The entire process takes place within the processing tank 2, avoiding sample loss caused by the splashing of fine soil particles during grinding. Simultaneous operation reduces processing time. For example, traditional methods of drying before grinding require waiting for the sample to air dry, while this process allows for simultaneous grinding and drying, preventing changes in sample indicators during prolonged storage. For instance, available phosphorus is easily adsorbed by soil colloids in humid environments, leading to lower detection values. After sample processing, the slide bar 21 moves in the opposite direction to reset, and the sampling tube 12 moves away from the processing tank 2 and flips over to dump the sieved impurities onto the ground.

[0045] Example 2:

[0046] Based on Embodiment 1, the inner wall of the grinding tube 27 is inclined, and the inner wall near one end of the grinding tube 27 is flat. The flat inner wall of the grinding tube 27 is located at the lower part of the inclined inner wall. The flat inner wall of the grinding tube 27 is evenly provided with kneading grooves 3. A kneading plate 31 is slidably connected to the flat surface of the grinding tube 27. One end of the kneading plate 31 is connected to the No. 3 electric push rod 32 installed on the grinding tube 27. A vision detector 33 is installed in the moving vehicle 1, and the probe of the vision detector 33 is installed on the slide rod 21. The vibration plate 26 is slidably connected to the extrusion tube 34 near the top position by a spring. An extrusion bladder 35 is provided in the extrusion tube 34. An extrusion block 36 is provided on the vibration plate 26. One end of the extrusion block 36 extends into the extrusion tube 34 and is located at one end of the extrusion bladder 35. A water spray pipe 37 is provided at the other end of the extrusion bladder 35. Distilled water is stored in the extrusion bladder 35. The extrusion bladder 35 is replenished with water through an external water tank.

[0047] The vibrating plate 26 is slidably connected to the side of the vibrating rod 25 by a spring, and the collision block 38 is close to the filter screen 19.

[0048] The vibrating plate 26 has a spiral groove 39 on the side away from the vibrating rod 25, and a spiral shaft 4 is slidably connected in the spiral groove 39. The spiral shaft 4 is close to the filter screen 19, and the two ends of the spiral shaft 4 are located on both sides of the vibrating plate 26. A spring is provided between the vibrating plate 26 and one end of the spiral shaft 4.

[0049] Specific workflow: Due to prolonged exposure to sunlight, the surface of the soil hardens into clumps, while the deeper layers remain moist. After sampling, the portion of the sample near the opening of the sampling tube 12 is moist, while the portion further away is dry and clumped. Directly breaking these clumps would easily cause them to crumble into powder, resulting in excessively small soil particle sizes and affecting the test results. Therefore, when the vibrating plate 26 enters the sampling tube 12, one end of the squeezing tube 34 contacts the inner wall of one end of the sampling tube 12. The moving vibrating plate 26 extends into the sampling tube 12, causing the squeezing block 36 to move and squeeze out the distilled water from the squeezing chamber 35. Distilled water in the grinding tube 27 is sprayed onto the agglomerates in the sample through the spray pipe 37. By wetting the agglomerates, the adhesion between the agglomerates after they are broken up is improved, and the agglomerates in the sample are prevented from being broken into too fine pieces. For example, if the moisture content of the sample is too low during grinding, the static electricity generated by friction may cause fine particles to agglomerate, or the sample may be too loose, causing some organic matter to be exposed to the air and oxidized. At this time, the vibrating plate 26 drives the extrusion block 36 to squeeze the extrusion bladder 35, and the spray pipe 37 can spray a small amount of distilled water into the grinding tube 27 to adjust the moisture content of the sample to a suitable range for detection. This can maintain the loose state of the sample and inhibit the oxidation of organic matter. The appropriate amount of moisture can form a protective film and reduce the contact between particles and air.

[0050] Furthermore, the extrusion tube 34 is connected to the vibration plate 26 via a spring. During vibration, the water spray tube 37 sprays distilled water evenly rather than spraying at a single point, ensuring that the water is evenly distributed in the soil sample. If too much water is added locally, the soil may stick to the rubbing plate 31 or the tube wall, affecting the grinding effect. Even water addition ensures that the overall humidity of the sample is consistent, and the particles remain uniform after grinding. This prevents the reagent reaction rate from being different due to local moisture differences during subsequent testing. Moreover, wetting the sample reduces its hardness, making it easier to grind and reducing the grinding force. This avoids excessive grinding force that could damage the inner wall of the grinding tube 27, leading to the generation of debris and affecting the test results.

[0051] Even after grinding, the sample remains moist and sticky. Because the inner wall of the grinding tube 27 is inclined, the ground sample rolls into the kneading trough 3. The third electric actuator 32 is activated to drive the kneading plate 31 to move back and forth along the kneading trough 3. The sticky sample entering the kneading plate 31 is kneaded to form particles suitable for testing, ensuring the uniformity of soil sample particle size and improving the accuracy of testing. Furthermore, during the kneading process, the heater continuously heats the sample, accelerating the drying and particle formation, thereby improving granulation efficiency and speeding up the entry into the testing step, thus improving testing efficiency.

[0052] Furthermore, by installing a conventional visual detector 33, such as a camera, the probe is mounted on the slide bar 21. When processing samples, the slide bar 21 carries the probe into the sampling tube 12. When processing is complete and vibration stops, the probe takes a picture to detect the integrity of the inner wall of the sampling tube 12. This detects both the cleanliness and integrity of the inner wall of the sampling tube 12, preventing the inner wall of the sampling tube 12 from developing pits or other debris that could affect the test results after prolonged use. When samples are not being processed, personnel can use the slide bar 21 to move the probe in and out of the grinding tube 27 to detect the cleanliness and integrity of the grinding tube 27, improving ease of use.

[0053] Furthermore, personnel can deploy the probes of the vision detector 33 at multiple points, such as pretending to be probes in the grinding and granulation areas. If there are impurities that have not been removed during the grinding process, the vision detector 33 can identify them through image comparison and trigger an alarm. Early identification can reduce the error of subsequent detection, improve detection accuracy, and also allow observation of the granulation process.

[0054] As the vibrating plate 26 moves the collision block 38 inside the sampling tube 12, the collision block 38 slides on one side of the vibrating plate 26 through the spring. When the vibrating plate 26 vibrates up and down, the collision block 38, due to its own weight and the motion inertia generated by sliding, causes the collision block 38 to collide with the sampling tube 12 near the filter screen 19 when it descends. By knocking, the force is increased, the impurities clogging the filter screen 19 are removed, and the filtration capacity of the filter screen 19 is maintained.

[0055] Furthermore, when the vibrating plate 26 enters the sampling tube 12, it drives the spiral shaft 4 into the sampling tube 12, with one end of the spiral shaft 4 abutting against the inner wall of the sampling tube 12 away from the opening. As the vibrating plate 26 approaches the inner wall of the sampling tube 12 away from the opening, the spiral shaft 4 is squeezed and moves from one side of the vibrating plate 26 to the other side. The spiral shaft 4 is guided by the spiral groove 39, causing the spiral shaft 4 to rotate. The rotation of the spiral shaft 4 breaks up the sample close to the filter screen 19, prompting the sample to pass through the filter screen 19, accelerating the sieving efficiency of the sample, thereby speeding up the time for the sample to enter the detector 11 and improving the detection efficiency. In addition, the action of the spiral shaft 4 to turn over the soil can also promote better and more uniform contact between the sprayed distilled water and the agglomerates in the sample, improving the accuracy of sample detection. Moreover, the spiral groove 39 can also scrape the soil on the spiral shaft 4, cleaning the spiral shaft 4, reducing the tediousness of subsequent cleaning, and improving the ease of use.

[0056] Example 3:

[0057] Based on Embodiment 2, one end of the spiral shaft 4 is rotatably connected to a lubricating block 41, and one side of the lubricating block 41 contacts the inner wall of the sampling tube 12.

[0058] The spiral shaft 4 is provided with a cleaning brush 42 at its edge, which is inserted into the mesh of the filter screen 19; the lubrication block 41 is provided with a stop bar 43, which penetrates the vibration plate 26, and one side of the stop bar 43 contacts the inner wall of the sampling tube 12.

[0059] Specific workflow: By setting up a lubricating block 41, the spiral shaft 4 indirectly contacts the inner wall of the sampling tube 12 away from the opening through the lubricating block 41, avoiding wear and debris between the two and improving the cleanliness of the sample. The material of the lubricating block 41 can be polytetrafluoroethylene or similar materials, ensuring lubrication while reducing the generation of debris when the lubricating block 41 is subjected to friction. The generated debris is inorganic and reduces its impact on the results.

[0060] The spiral shaft 4 drives the cleaning brush 42 to rotate. When the cleaning brush 42 passes through the filter screen 19, part of the cleaning brush 42 is inserted into the filter screen 19, clearing the filter screen 19 and maintaining its permeability. In addition, the rotation of the cleaning brush 42 has a sweeping effect on the broken sample, pushing the sample into the filter screen 19, accelerating the sample's passage through the filter screen 19, and improving detection efficiency. Moreover, during the rotation of the cleaning brush 42, it sweeps past the baffle 43. The baffle 43 is comb-shaped, which combs the cleaning brush 42 and removes the soil adhering to the cleaning brush 42. It can also intercept some impurities above the baffle 43, preventing impurities from approaching the filter screen 19. Together with the cleaning brush 42 sweeping away the impurities intercepted on the filter screen 19, it reduces the impact of impurities such as plant roots on filtration.

[0061] Example 4:

[0062] Based on Embodiment 3, a pressing rod 44 is slidably connected in the inner wall of the grinding tube 27, a baffle 45 is evenly opened in the kneading groove 3, and a baffle 46 is slidably connected in the baffle 45 by a spring. The inclined surface of one side of the pressing rod 44 contacts the baffle 46, and a linkage rod 47 is hinged to the top of the pressing rod 44 by a torsion spring. The linkage rod 47 contacts one end of the kneading plate 31.

[0063] The grinding rod 28 is provided with a grinding plate 48 on one side, and the grinding plate 48 is inclined. One side of the grinding plate 48 contacts the inner wall of the grinding tube 27. A storage groove 49 is provided on the inner wall of the grinding tube 27, and the storage groove 49 is far away from the inner wall of the grinding tube 27.

[0064] The grinding plate 48 is provided with a guide block 5 at one end, and the grinding tube 27 is provided with a guide strip 51 at one end. The guide block 5 slides on the guide strip 51, which is wavy. The grinding plate 48 is connected to the pressing strip 52 by a torsion spring on the side away from the grinding rod 28. The pressing strip 52 is the cutting edge on the side away from the grinding plate 48. Every two pressing strips 52 are connected end to end by a torsion spring to form a group. Multiple groups are distributed on one side of the grinding plate 48.

[0065] One end of the grinding rod 28 is rotatably connected to the extrusion wheel 53, and one end of the inner wall of the grinding tube 27 is provided with a collection frame 54, and the extrusion wheel 53 rolls within the collection frame 54.

[0066] Specific workflow: When the kneading plate 31 approaches the grinding rod 28, the linkage rod 47 is positioned vertically at the end of the kneading plate 31 closest to the grinding rod 28. The kneading plate 31 drives the extrusion rod 44 to move via the linkage rod 47. The inclined surface of the extrusion rod 44 contacts the baffle 46, squeezing the baffle 46 from the baffle groove 45 until it extends vertically into the kneading groove 3. The sample particles in the kneading groove 3 are blocked and intercepted by the baffle 46, preventing them from being kneaded close to the grinding rod 28. When the kneading plate 31 approaches the grinding rod 28 to the limit position of the extrusion rod 44, the extrusion rod 44 stops moving, and the linkage rod 47 continues to be squeezed and oscillates. On the bottom surface of the rubbing plate 31, the linkage rod 47 is no longer squeezed. The squeezing rod 44 drives the linkage rod 47 away from the grinding rod 28 and slides back to its original position. After the squeezing rod 44 stops squeezing the baffle 46, the baffle 46 is lowered and retracted into the baffle groove 45 by the spring. There is no obstruction in the rubbing groove 3, so that when the rubbing plate 31 rubs the sample away from the grinding rod 28, the sample is not obstructed and falls off naturally. That is, when rubbing back and forth, the sample will not be rubbed back close to the grinding rod 28, which will cause the sample particles to leave the rubbing groove 3 in time. The baffle 46 improves the sample particle production efficiency, shortens the detection time, and improves the detection efficiency.

[0067] Furthermore, the grinding rod 28 drives the grinding plate 48 to swing back and forth along the inner wall of the grinding tube 27. When the grinding plate 48 grinds the sample, the soil is flattened by the grinding plate 48 and passes through the gap between the grinding plate 48 and the grinding tube 27. Meanwhile, impurities such as sand and gravel, which cannot pass through the gap or are ground, are pushed by the grinding plate 48 until they are pushed into the collection tank 49 to complete the collection of impurities. This prevents impurities from entering the kneading tank 3 for granulation, improves the cleanliness of the sample, and thus improves the accuracy of the test.

[0068] Furthermore, through the setting of guide strip 51 and guide block 5, the grinding plate 48 drives the guide block 5 to swing. When the guide block 5 moves along the guide strip 51, since the guide strip 51 is wavy, the swing path of the guide block 5 is wavy. For example, when the grinding plate 48 moves to the lower part of the wavy part of the guide strip 51, one side of the grinding plate 48 swings close to the inner wall of the grinding tube 27. When it moves to the higher part, one side of the grinding plate 48 swings away from the inner wall of the grinding tube 27. This causes the grinding plate 48 to generate a soil state of multiple compression and pushing, which speeds up the efficiency of flattening the soil and passing through the gap. It can also squeeze the extrusion strip 52 multiple times to produce a shearing effect, shearing the clumps remaining in the sample and shearing the clumps to a small particle size, preventing the clumps from being crushed into powder. The shearing effect of the extrusion strip 52 can also cut up the impurities of the plant roots, so as not to affect the sample granulation and other subsequent work.

[0069] Furthermore, when the grinding rod 28 swings, it drives the extrusion roller 53 to roll inside the collection frame 54. The ground sample slides into the collection frame 54 along the inclined inner wall of the grinding tube 27. The collection frame 54 collects the sample, preventing the sample from scattering and affecting the final particle size, which would affect the detection. The extrusion roller 53 reciprocates and crushes the sample inside the collection frame 54, pressing the sample into the kneading groove 3, accelerating the movement of the sample, shortening the detection time, and improving the detection efficiency.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil testing device based on organic fertilizer application, comprising a mobile vehicle (1), a testing instrument (11), and a sampling tube (12); characterized in that, Also includes: A turntable (13) is rotatably connected to a mobile vehicle (1) and connected to a motor (14) inside the mobile vehicle (1). A sampling tube (12) is provided on one side of the turntable (13). One end of the sampling tube (12) is slidably connected to a slider (15) via a spring. One side of the slider (15) is connected to a first electric push rod (16) installed on the turntable (13). Sampling grooves (17) are evenly provided on the inner wall of the sampling tube (12), and a sampling block (18) is slidably connected to the sampling groove (17) via a spring. A filter screen (19) is provided on the sampling tube (12). The processing tank (2) is installed on one side of the turntable (13), and a sliding rod (21) is slidably connected to the inner wall of the other side. One end of the sliding rod (21) is connected to the No. 2 electric push rod (22) installed on the processing tank (2), and the other end is slidably connected to the vibration table (23) through a spring. A vibration device (24) is installed on the vibration table (23). A vibration rod (25) is provided at the end of the vibration table (23) away from the sliding rod (21), and a vibration plate (26) is provided at the end of the vibration rod (25) away from the vibration table (23). A grinding tube (27) is provided inside the processing tank (2), and a grinding rod (28) is rotatably connected to one side of the grinding tube (27). A No. 2 motor (29) is provided inside the processing tank (2) and connected to the grinding rod (28). A heater and a temperature and humidity sensor are provided inside the grinding tube (27), and the temperature and humidity sensor is connected to the detector (11). The inner wall of the grinding tube (27) is inclined, and the inner wall of the grinding tube (27) near the end close to the first electric push rod (16) is flat. The flat inner wall of the grinding tube (27) is located in the lower part of the inclined inner wall. The flat inner wall of the grinding tube (27) is evenly provided with kneading grooves (3). A kneading plate (31) is slidably connected on the flat surface of the grinding tube (27). One end of the kneading plate (31) is connected to the third electric push rod (32) installed on the grinding tube (27). The moving vehicle (1) is equipped with a video camera. A visual detector (33) is installed on a slide bar (21); a squeezing tube (34) is slidably connected to the vibrating plate (26) near the top position by a spring, and a squeezing bladder (35) is provided inside the squeezing tube (34); a squeezing block (36) is provided on the vibrating plate (26); one end of the squeezing block (36) extends into the squeezing tube (34) and is located at one end of the squeezing bladder (35); a water spray pipe (37) is provided at the other end of the squeezing bladder (35); and distilled water is stored inside the squeezing bladder (35). The vibrating plate (26) is slidably connected to a collision block (38) by a spring on the side near the vibrating rod (25), and the collision block (38) is close to the filter screen (19).

2. The soil testing equipment based on organic fertilizer application according to claim 1, characterized in that: The vibrating plate (26) has a spiral groove (39) on the side away from the vibrating rod (25), and a spiral shaft (4) is slidably connected in the spiral groove (39). The spiral shaft (4) is close to the filter screen (19), and the two ends of the spiral shaft (4) are located on both sides of the vibrating plate (26). A spring is provided between the vibrating plate (26) and one end of the spiral shaft (4).

3. The soil testing equipment based on organic fertilizer application according to claim 2, characterized in that: One end of the spiral shaft (4) is rotatably connected to a lubricating block (41), and one side of the lubricating block (41) contacts the inner wall of the sampling tube (12).

4. The soil testing equipment based on organic fertilizer application according to claim 3, characterized in that: The spiral shaft (4) is provided with a cleaning brush (42) on its edge, and the cleaning brush (42) is inserted into the mesh of the filter screen (19); the lubrication block (41) is provided with a stop bar (43), and the stop bar (43) passes through the vibration plate (26), and one side of the stop bar (43) contacts the inner wall of the sampling tube (12).

5. The soil testing equipment based on organic fertilizer application according to claim 1, characterized in that: A pressing rod (44) is slidably connected to the inner wall of the grinding tube (27). A baffle (45) is evenly provided in the kneading groove (3), and a baffle (46) is slidably connected in the baffle (45) by a spring. The inclined surface of one side of the pressing rod (44) contacts the baffle (46). A linkage rod (47) is hinged to the top of the pressing rod (44) by a torsion spring. The linkage rod (47) contacts one end of the kneading plate (31).

6. The soil testing equipment based on organic fertilizer application according to claim 5, characterized in that: The grinding rod (28) has a grinding plate (48) on one side, and the grinding plate (48) is inclined. One side of the grinding plate (48) contacts the inner wall of the grinding tube (27). A storage groove (49) is opened on the inner wall of the grinding tube (27), and the storage groove (49) is far away from the inner wall of the grinding tube (27).

7. The soil testing equipment based on organic fertilizer application according to claim 6, characterized in that: The grinding plate (48) is provided with a guide block (5) at one end and a guide strip (51) at one end of the grinding tube (27). The guide block (5) slides on the guide strip (51), which is wavy. The grinding plate (48) is connected to a pressing strip (52) by a torsion spring on the side away from the grinding rod (28). The pressing strip (52) is a cutting edge on the side away from the grinding plate (48). Two pressing strips (52) are connected end to end by a torsion spring to form a group. Multiple groups are distributed on one side of the grinding plate (48).

8. The soil testing equipment based on organic fertilizer application according to claim 7, characterized in that: One end of the grinding rod (28) is rotatably connected to a pressing wheel (53), and one end of the inner wall of the grinding tube (27) is provided with a collection frame (54), and the pressing wheel (53) rolls inside the collection frame (54).

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