A soil heavy metal rapid detector capable of improving detection accuracy

Abstract

The application discloses a soil heavy metal rapid detector capable of improving detection accuracy, wherein a detection instrument is installed on the outside of a detection box, the detection instrument and a detection probe are electrically connected, an elevating assembly, a material guiding assembly and a stirring assembly are arranged in the inside of the same detection box, a driving assembly for driving the elevating assembly to rotate is installed on the outside of the detection box, the material guiding assembly is installed on the upper portion of the elevating assembly on the inside of the detection box, the stirring assembly is installed on the lower side of the material guiding assembly on the elevating assembly, the elevating assembly comprises a rotating shaft and a spiral blade, the spiral blade is fixedly installed on the rotating shaft, the driving assembly is a single driving motor fixed to the bottom of the detection box, the output shaft of the driving motor is fixedly connected with the lower end of the rotating shaft, the guide cylinder of the material guiding assembly is sleeved on the upper portion of the spiral blade, and the guide cylinder is fixed to the inner side wall of the detection box. The soil sample is fully and uniformly mixed through circulation, and the detection accuracy is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of soil heavy metal detection technology, and in particular to a rapid soil heavy metal detector that can improve detection accuracy. Background Technology

[0002] With the rapid development of urbanization and industrialization, heavy metal elements enter the soil through sewage irrigation, atmospheric dust deposition and other means. These heavy metal elements cannot be degraded by microorganisms and are easily accumulated, causing heavy metal pollution in the soil.

[0003] In the field of heavy metal detection in soil, detectors are typically used to measure the heavy metal content in soil samples. Current detectors generally rely solely on a stirring paddle to agitate the soil within the testing container. This method has a limited range of action and fails to thoroughly mix different soil layers within the container, resulting in unrepresentative samples and consequently affecting detection accuracy. Furthermore, some existing detection equipment lacks portable support structures designed for field use, making it inconvenient to apply. Summary of the Invention

[0004] The purpose of this invention is to provide a rapid soil heavy metal detector that can improve detection accuracy, aiming to solve the problems of poor soil mixing effect, inaccurate detection results, and inconvenience of field use of existing detectors.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a rapid soil heavy metal detector capable of improving detection accuracy, comprising a detection chamber, a detection instrument, a detection probe, a lifting assembly, a material guiding assembly, a mixing assembly, and a drive assembly. The detection instrument is mounted on the outside of the detection chamber, and the detection instrument and the detection probe are electrically connected. The lifting assembly, the material guiding assembly, and the mixing assembly are all disposed inside the same detection chamber. The lifting assembly is installed in the middle of the inner side of the detection chamber. A drive assembly for driving the lifting assembly to rotate is mounted on the outside of the detection chamber. The material guiding assembly is mounted on the inner side of the detection chamber and above the lifting assembly. The mixing assembly is mounted on the lower side of the material guiding assembly and above the lifting assembly. The lifting assembly includes a rotating shaft and helical blades. The rotating shaft is located in the middle of the inner side of the detection chamber. The spiral blades are fixedly mounted on the rotating shaft. The driving assembly is a single driving motor fixed to the bottom of the detection chamber. The output shaft of the driving motor is fixedly connected to the lower end of the rotating shaft. The material guiding assembly includes a guide cylinder, which is fitted onto the upper part of the spiral blades. The upper end face of the guide cylinder is flush with the upper end face of the spiral blades. The guide cylinder is fixed to the inner wall of the detection chamber. The spiral blades and the stirring assembly are fixed on the same rotating shaft and are synchronously driven to rotate by a single driving motor. The spiral blades, in conjunction with the guide cylinder, transport the soil at the bottom of the detection chamber from bottom to top and discharge it from the top of the guide cylinder back to the bottom of the detection chamber, forming a circulating flow of soil within the detection chamber. The stirring assembly rotates synchronously with the rotating shaft and stirs the soil in the lower inner part of the detection chamber.

[0006] Furthermore, it also includes a carrying support assembly, which includes a U-shaped frame, support columns, a rotating shaft, a bottom support plate, and a handle sleeve. A support column is rotatably mounted on each of the two branches of the U-shaped frame, and the support columns are fixed to the side wall of the detection box. The handle sleeve is fitted into the middle of the U-shaped frame. A rotating shaft is rotatably mounted on each side of the handle sleeve and on the U-shaped frame, with the rotating shaft located on the side of the U-shaped frame away from the detection box. The bottom support plate is fixed to the end of the rotating shaft away from the U-shaped frame. The U-shaped frame switches between a lifting position and a supporting position through damped rotation. When the U-shaped frame rotates to the top of the detection box, the handle sleeve is used as a lifting handle; when the U-shaped frame rotates to the bottom of the detection box, the bottom support plate is adjusted in angle by the damped rotation of the rotating shaft and then supported on the ground.

[0007] Furthermore, it also includes a detachable probe support adjustment assembly, which includes a sliding support plate, a telescopic cylinder, a support plate, and a support ring. The support ring is detachably and fixedly installed on the top of the detection box. Two support plates are fixedly installed across the middle of the inner side of the support ring. Sliding grooves are respectively opened on the opposite sides of the two support plates. The sliding support plate is damped and slidably installed in the two sliding grooves. A telescopic cylinder is fixedly installed on the sliding support plate. The detection probe is installed at the lower end of the telescopic spindle of the telescopic cylinder.

[0008] Furthermore, the support ring is a circular structure that can match the detection box. The inner side of the support ring has an annular groove with a downward opening. The top of the detection box can be fitted into the annular groove, and the support ring can rotate relative to the detection box.

[0009] Furthermore, the top of the detection chamber is provided with multiple ball bearings, and the support ring is equipped with fixing bolts for locking the support ring onto the detection chamber.

[0010] Furthermore, the telescopic cylinder moves in a positional adjustment manner along the diameter of the support ring.

[0011] Furthermore, the material guiding assembly also includes multiple inclined rods, which are circumferentially distributed and fixedly installed on the outside of the guide cylinder. The outer ends of the inclined rods are fixed to the inner sidewall of the detection box, and gaps are formed between the multiple inclined rods to allow soil to pass through.

[0012] Furthermore, the stirring assembly includes a horizontal stirring rod and an inclined stirring rod. The horizontal stirring rod is fixedly installed on the spiral blades on the lower side of the guide tube, and the horizontal stirring rod is configured to cooperate with the inner cavity of the detection box. An inclined stirring rod is fixedly installed between two adjacent horizontal stirring rods, and the lower end of the inclined stirring rod is inclined toward the rotation axis.

[0013] Furthermore, the detection box is a cylindrical structure with an open top, and the bottom of the detection box has a concave arc shape in the middle.

[0014] Furthermore, the driving component is a servo motor.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are as follows: The rapid soil heavy metal detector of the present invention improves detection accuracy by integrating the lifting component, the material guiding component, and the stirring component into the same detection chamber. A single drive motor drives the same rotating shaft to synchronously drive the spiral blades and the stirring component to rotate. The spiral blades, together with the guide tube, transport the soil at the bottom of the detection chamber from bottom to top and discharge it from the top of the guide tube back to the bottom of the chamber, forming a continuous internal circulation flow. At the same time, the stirring component stirs the falling soil, so that the soil sample is fully and uniformly mixed, effectively avoiding detection deviations caused by soil stratification or uneven mixing, and significantly improving detection accuracy. Furthermore, this invention also achieves convenient switching between lifting and stable support modes through the damped rotational connection between the U-shaped frame and the support column in the carrying support assembly, as well as the damped rotational connection between the bottom support plate and the rotating shaft. This adapts to the stable support requirements of uneven ground in the field, improving the portability and field applicability of the equipment. At the same time, the detachable probe support adjustment assembly can adjust the spatial position of the detection probe in the detection box, allowing it to be inserted to different depths for detection, or positioned above the guide tube for dynamic detection of the circulating soil, further enriching the detection methods and improving the comprehensiveness and flexibility of the detection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the rapid soil heavy metal detector of the present invention, which can improve the detection accuracy. Figure 2 This is a three-dimensional structural diagram of the support ring portion in the rapid soil heavy metal detector of the present invention, which can improve detection accuracy; Figure 3 This is a three-dimensional structural diagram of the rapid soil heavy metal detector of the present invention, which can improve detection accuracy (excluding the support ring portion). Figure 4 for Figure 1 A partially enlarged structural diagram; Figure 5 for Figure 4 A three-dimensional structural diagram of the material guiding component.

[0018] Explanation of reference numerals in the attached drawings: 1-Fixing bolt; 2-Ball bearing; 3-Sliding support plate; 4-Telescopic cylinder; 5-Support plate; 6-Lifting assembly; 7-Guiding assembly; 8-Mixing assembly; 9-Detection box; 10-Carrying support assembly; 11-Drive assembly; 12-Detection instrument; 13-Detection probe; 14-Support ring; 15-Sliding groove; 16-Support column; 17-U-shaped frame; 18-Rotating shaft; 19-Bottom support plate; 20-Holding sleeve; 21-Rotating shaft; 22-Helical blade; 23-Horizontal stirring rod; 24-Angled stirring rod; 25-Guide cylinder; 26-Angled rod. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the terms "length," "width," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 5As shown, the rapid soil heavy metal detector of this embodiment, which can improve detection accuracy, includes a detection box 9, a detection instrument 12, and a detection probe 13. The detection instrument 12 is installed on the outside of the detection box 9, and the detection instrument 12 and the detection probe 13 are electrically connected.

[0024] Specifically, it also includes a lifting component 6, a material guiding component 7, a mixing component 8, and a driving component 11. The lifting component 6 is installed in the middle of the inner side of the detection box 9. The driving component 11 for driving the lifting component 6 to rotate is installed on the outer side of the detection box 9. The material guiding component 7 is installed on the upper part of the lifting component 6 on the inner side of the detection box 9. The mixing component 8 is installed on the lower side of the material guiding component 7 on the lifting component 6. The lifting component 6 is used to cooperate with the material guiding component 7 to transport the soil to be tested from bottom to top and discharge it from the top of the material guiding component 7. The mixing component 8 is used to rotate synchronously with the lifting component 6 and mix the soil in the lower inner side of the detection box 9.

[0025] The lifting component 6 includes a rotating shaft 21 and a spiral blade 22. The rotating shaft 21 is located in the middle of the inner side of the detection box 9. The spiral blade 22 is fixedly mounted on the rotating shaft 21. The driving component 11 is preferably a servo motor. The driving component 11 is fixed to the bottom of the detection box 9, and the output shaft of the driving component 11 is fixedly connected to the lower end of the rotating shaft 21. The rotating shaft 21 can be driven to rotate by the driving component 11.

[0026] Furthermore, the material guiding assembly 7 includes a guide cylinder 25 and inclined rods 26. The guide cylinder 25 is fitted onto the upper part of the spiral blade 22. Preferably, the upper end face of the guide cylinder 25 is flush with the upper end face of the spiral blade 22. Multiple inclined rods 26 are circumferentially distributed and fixed on the outer side of the guide cylinder 25. The outer ends of the inclined rods 26 are fixed to the inner side wall of the detection box 9. The inclined rods 26 can provide stable support for the guide cylinder 25.

[0027] At this time, through the coordinated arrangement of lifting component 6, material guiding component 7, mixing component 8 and driving component 11, driving component 11 can drive lifting component 6 to rotate, lifting component 6 can cooperate with material guiding component 7 to transport the soil to be tested from bottom to top and discharge it from the top of material guiding component 7, and mixing component 8 can rotate synchronously with lifting component 6 and mix the soil in the lower part of the inner side of the testing box 9, so that the soil can be fully dispersed and the comprehensiveness and accuracy of the test can be improved.

[0028] In this embodiment, the detection probe 13 can be an X-ray probe disclosed in the prior art, and the detection instrument 12 can be an X-ray fluorescence spectrometer disclosed in the prior art. Both are conventional technologies that use X-ray fluorescence spectroscopy to detect the type and concentration of heavy metals or metalloids such as cadmium, chromium, lead, mercury, and arsenic in the soil sample.

[0029] Preferably, the detection box 9 is a cylindrical structure with an open top, and the bottom of the detection box 9 has a concave arc-shaped structure in the middle, which facilitates the addition and discharge of soil and reduces residue.

[0030] In this embodiment, the mixing assembly 8 includes a horizontal mixing rod 23 and an inclined mixing rod 24. The horizontal mixing rod 23 is fixedly mounted on the spiral blade 22 on the lower side of the guide cylinder 25, and the horizontal mixing rod 23 is configured to fit into the inner cavity of the detection chamber 9, that is, the length of the horizontal mixing rod 23 matches the corresponding inner cavity of the detection chamber 9. An inclined mixing rod 24 is also fixedly mounted between two adjacent horizontal mixing rods 23. The inclined mixing rod 24 is inclined with its lower end facing the rotating shaft 21. The inclined mixing rod 24 can both improve the installation strength of the horizontal mixing rod 23 and play a role in stirring and pushing the soil, thereby improving the application effect. The operation of the drive assembly 11 can drive the rotating shaft 21 to rotate, thereby driving the overall rotation of the spiral blade 22, the horizontal mixing rod 23 and the inclined mixing rod 24. The spiral blade 22, in conjunction with the guide cylinder 25, can lift the soil and discharge it from the upper end of the guide cylinder 25. The combined configuration of the horizontal mixing rod 23 and the inclined mixing rod 24 can disperse and mix the soil in the lower inner part of the detection chamber 9, thereby improving the comprehensiveness and accuracy of subsequent testing.

[0031] Furthermore, it includes a detachable probe support and adjustment assembly. This assembly is installed on the top of the detection chamber 9, and the detection probe 13 is mounted on it. The detachable probe support and adjustment assembly supports the detection probe 13 and adjusts its position within the detection chamber 9. The detachable probe support and adjustment assembly supports the detection probe 13 and adjusts its position within the detection chamber 9. Specifically, when the detection probe 13 is located inside the detection chamber 9 outside the material guiding assembly 7, soil contamination detection at different depths can be performed, improving measurement accuracy. When the detection probe 13 is located above the material guiding assembly 7, dynamic contamination detection of the soil discharged from the top of the material guiding assembly 7 can be performed, further improving measurement accuracy.

[0032] like Figure 1 , Figure 2As shown, the detachable probe support adjustment assembly includes a sliding support plate 3, a telescopic cylinder 4, a support plate 5, and a support ring 14. The support ring 14 is detachably installed and fixed to the top of the detection box 9. The support ring 14 is preferably a ring-shaped structure that can match the detection box 9. The inner side of the support ring 14 has an annular groove with a downward opening, and the top of the detection box 9 can be fitted into the annular groove. The support ring 14 can also rotate relative to the detection box 9. The top of the detection box 9 is also provided with multiple ball bearings 2, which can improve the smoothness of the rotation adjustment of the support ring 14. In addition, the support ring 14 is also equipped with fixing bolts 1 for locking the support ring 14 onto the detection box 9, that is, the support ring 14 can be locked by fixing bolts 1; two support plates 5 are installed and fixed across the middle of the inner side of the support ring 14, and each of the two support plates 5 has a sliding groove 15 on its opposite side. The sliding support plate 3 is damped and slidably installed in the sliding groove 15 of the two support plates 5, which facilitates the stable adjustment and movement of the sliding support plate 3. A telescopic cylinder 4 is also installed and fixed on the sliding support plate 3, and the detection probe 13 is installed at the lower end of the telescopic spindle of the telescopic cylinder 4.

[0033] Furthermore, the telescopic cylinder 4 moves along the diameter of the support ring 14 to adjust its position, thus enabling full-range adjustment of the detection probe 13.

[0034] At this time, the sliding support plate 3 is slidably supported by two support plates 5, which facilitates the adjustment of the position of the telescopic cylinder 4. The telescopic cylinder 4 can control the position of the detection probe 13. In addition, the support ring 14 can rotate relative to the detection box 9, which can realize the full range adjustment of the detection probe 13. That is, soil pollution detection can be performed at any point within the range of the detection box 9 through the detection probe 13. The support ring 14 is also easy to disassemble, which improves the convenience of cleaning (that is, removing the support ring 14, flipping the detection box 9 to pour out the soil) and carrying.

[0035] The rapid soil heavy metal detector of this embodiment also includes a support assembly 10, which is installed on the detection chamber 9. The support assembly 10 is used to support the detection chamber 9 and to lift and move the detection chamber 9. In this way, by setting up the support assembly 10, the detection chamber 9 can be supported and lifted and moved, with one component serving two purposes, resulting in good application effect.

[0036] like Figures 1 to 3As shown, the carrying support assembly 10 includes a support column 16, a U-shaped frame 17, a rotating shaft 18, a bottom support plate 19, and a gripping sleeve 20. A support column 16 is mounted on each of the two branches of the U-shaped frame 17 with damping rotation. The support column 16 is fixed to the side wall of the detection box 9. A gripping sleeve 20 is fitted in the middle of the U-shaped frame 17. A rotating shaft 18 is mounted on each side of the gripping sleeve 20 on the U-shaped frame 17 with damping rotation. The rotating shaft 18 is located on the side of the U-shaped frame 17 away from the detection box 9. The bottom support plate 19 is installed and fixed at the end of the rotating shaft 18 away from the U-shaped frame 17.

[0037] In this embodiment, the U-shaped frame 17 is connected by a damped rotational link between the support column 16 and the U-shaped frame 17, allowing the U-shaped frame 17 to swing. When the U-shaped frame 17 swings to the upper side of the detection box 9, the handle 20 can be held for easy carrying of the device. Note the length of the support column 16 to avoid interference from the support ring 14 after the U-shaped frame 17 swings. When the U-shaped frame 17 swings to the lower side of the detection box 9, the bottom support plate 19 is rotated to a 90° angle with the U-shaped frame 17. Utilizing the damped connection between the support column 16 and the U-shaped frame 17, and between the rotating shaft 18 and the bottom support plate 19, the detection box 9 can be stably and reliably supported, improving the convenience of supporting and carrying the detection device and resulting in good application performance. Furthermore, to further improve the reliability of the device, bolts (not shown) can be provided to lock the U-shaped frame 17 after swinging and to lock the bottom support plate 19 after rotation; no specific limitation is made.

[0038] The rapid soil heavy metal detector of the present invention can thoroughly circulate and mix soil samples to ensure that the detection process is comprehensive and in place. The detection probe can be adjusted in position over a full range to achieve multi-directional detection of soil at different depths and locations within the chamber, thereby effectively improving the comprehensiveness and accuracy of the detection.

[0039] In addition, the control of each electrical component (such as telescopic cylinder 4, detection probe 13, drive assembly 11 and detection instrument 12) can be achieved using industrial controllers disclosed in the prior art. The model and circuit connection of each electrical component are not specifically limited and can be flexibly set in actual application.

[0040] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.

[0041] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A rapid soil heavy metal detector capable of improving detection accuracy, characterized in that, The device includes a detection chamber, a detection instrument, a detection probe, a lifting assembly, a material guiding assembly, a stirring assembly, and a driving assembly. The detection instrument is mounted on the outside of the detection chamber, and the detection instrument and the detection probe are electrically connected. The lifting assembly, the material guiding assembly, and the stirring assembly are all disposed inside the same detection chamber. The lifting assembly is installed in the middle of the inner side of the detection chamber. A driving assembly for driving the lifting assembly to rotate is installed on the outside of the detection chamber. The material guiding assembly is installed on the inner side of the detection chamber and above the lifting assembly. The stirring assembly is installed on the lower side of the material guiding assembly and above the lifting assembly. The lifting assembly includes a rotating shaft and helical blades. The rotating shaft is located in the middle of the inner side of the detection chamber, and the helical blades are fixedly mounted on the rotating shaft. The driving component is a single drive motor fixed to the bottom of the detection chamber. The output shaft of the drive motor is fixedly connected to the lower end of the rotating shaft. The material guiding component includes a guide cylinder, which is fitted onto the upper part of the spiral blade. The upper end face of the guide cylinder is flush with the upper end face of the spiral blade. The guide cylinder is fixed to the inner wall of the detection chamber. The spiral blade and the stirring component are fixed on the same rotating shaft and are synchronously driven to rotate by the single drive motor. The spiral blade, in conjunction with the guide cylinder, transports the soil at the bottom of the detection chamber from bottom to top and discharges it from the top of the guide cylinder back to the bottom of the detection chamber, forming a circulating flow of soil within the detection chamber. The stirring component rotates synchronously with the rotating shaft and stirs the soil in the lower inner part of the detection chamber.

2. The rapid soil heavy metal detector according to claim 1, characterized in that, It also includes a carrying support assembly, which includes a U-shaped frame, support columns, a rotating shaft, a bottom support plate, and a handle sleeve. A support column is rotatably mounted on each of the two branches of the U-shaped frame, and the support columns are fixed to the side wall of the detection box. The handle sleeve is fitted into the middle of the U-shaped frame. A rotating shaft is rotatably mounted on each side of the handle sleeve and on the U-shaped frame, located on the side of the U-shaped frame away from the detection box. The bottom support plate is fixed to the end of the rotating shaft away from the U-shaped frame. The U-shaped frame switches between a lifting position and a supporting position through damped rotation. When the U-shaped frame rotates to the top of the detection box, the handle sleeve is used as a lifting handle; when the U-shaped frame rotates to the bottom of the detection box, the bottom support plate is adjusted in angle by the damped rotation of the rotating shaft and then supported on the ground.

3. The rapid soil heavy metal detector according to claim 1, characterized in that, It also includes a detachable probe support adjustment assembly, which includes a sliding support plate, a telescopic cylinder, a support plate, and a support ring. The support ring is detachably and fixedly installed on the top of the detection box. Two support plates are fixedly installed across the middle of the inner side of the support ring. Sliding grooves are respectively opened on the opposite side of the two support plates. The sliding support plate is damped and slidably installed in the two sliding grooves. A telescopic cylinder is fixedly installed on the sliding support plate. The detection probe is installed at the lower end of the telescopic spindle of the telescopic cylinder.

4. The rapid soil heavy metal detector according to claim 3, characterized in that, The support ring is a circular structure that can match the detection box. The inner side of the support ring has an annular groove with a downward opening. The top of the detection box can be fitted into the annular groove. The support ring can rotate relative to the detection box.

5. The rapid soil heavy metal detector according to claim 4, characterized in that, The top of the detection chamber is provided with multiple ball bearings, and the support ring is equipped with fixing bolts for locking the support ring onto the detection chamber.

6. The rapid soil heavy metal detector according to claim 3, characterized in that, The telescopic cylinder moves in a positional adjustment manner along the diameter of the support ring.

7. The rapid soil heavy metal detector according to claim 1, characterized in that, The material guiding assembly also includes multiple inclined rods, which are circumferentially distributed and fixedly installed on the outside of the guide cylinder. The outer ends of the inclined rods are fixed to the inner side wall of the detection box, and gaps are formed between the multiple inclined rods to allow soil to pass through.

8. The rapid soil heavy metal detector according to claim 1, characterized in that, The stirring assembly includes a horizontal stirring rod and an inclined stirring rod. The horizontal stirring rod is fixedly installed on the spiral blades on the lower side of the guide tube, and the horizontal stirring rod is configured to cooperate with the inner cavity of the detection box. An inclined stirring rod is fixedly installed between two adjacent horizontal stirring rods, and the lower end of the inclined stirring rod is inclined toward the rotation axis.

9. The rapid soil heavy metal detector according to claim 1, characterized in that, The detection box is a cylindrical structure with an open top, and the bottom of the detection box has a concave arc shape in the middle.

10. A rapid soil heavy metal detector according to any one of claims 1-9, characterized in that, The drive component is a servo motor.

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