Soil detection device and application thereof in environmental remediation

Abstract

The invention relates to the technical field of soil detection, and discloses a soil detection device and application thereof in environmental remediation, the soil detection device comprises a supporting assembly, a soil drilling assembly, a sampling assembly, a detection assembly and a discharging assembly, the sampling assembly can directly conduct crushing treatment on soil to be detected, the timeliness of soil collection is guaranteed, and the detection efficiency is improved; meanwhile, the problem that the detection probe is directly inserted into the soil to cause damage is avoided, the detection assembly is directly inserted into the soil, the accuracy during soil detection is effectively guaranteed, the problem that the detection timeliness is poor after soil collection in the current market is solved, and meanwhile the problem that the probe is directly inserted into the soil to cause damage can be solved. And during soil collection, the discharging assembly can block soil below when the sampling assembly crushes the soil, after soil particles are picked up into the sampling assembly, the soil particles are separated and prevented from falling off, and after soil detection is completed, the discharging assembly is controlled to discharge the soil in the sampling assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and in particular to a soil detection device and its application in environmental remediation. Background Art

[0002] In the process of soil remediation, it is sometimes necessary to first use tools such as auger bits to dig samples from deep soil to the ground, and then collect the samples and put them into a test box for testing and processing. In the process of putting the samples into the test box, manual placement is inefficient, and the method of collecting soil and then transporting it to the laboratory for testing will greatly increase the inaccuracy of soil testing due to soil deterioration during transportation. The method of collecting soil samples on the ground and then directly testing them is also prone to the possibility of soil deterioration after reaching the ground, and there are factors that affect inaccurate testing.

[0003] In a soil detection device with application number CN201911160560.2, the detection cylinder drives the sampling assembly to move up and down. After the sampling device samples the soil under the drill bit, it cannot be directly placed on the detection platform. The soil condition cannot be directly detected and observed on the sampling device. The horizontal cylinder moves the sampling device after the sampling is completed. After the sampling claw on the sampling device is aligned with the detection platform, the soil to be detected in the sampling claw will naturally fall on the detection platform, thereby ensuring that the camera can normally capture the actual condition of the soil, and the line-breaking detection probe is inserted into the soil for detection.

[0004] In actual use, the most direct way to detect whether the soil is polluted is to directly test the soil. However, the greater the soil depth, the harder the soil will be. Since the detection devices currently on the market lack the function of loosening the soil before soil testing, when conducting deep soil testing, if the detection probe is too large, it will not be able to be inserted into the soil. This will result in that even if the detection probe can be inserted into the soil, the detection probe will be damaged by directly and forcefully inserting it into the soil due to the excessive hardness of the soil, which will greatly affect the progress of soil testing.

[0005] Therefore, the present invention solves the above-mentioned problems through a soil detection device and its application in environmental remediation. Summary of the invention

[0006] The object of the present invention is to provide a soil detection device and its application in environmental remediation to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a soil detection device, comprising: A support assembly, the support assembly provides a mounting foundation and improves soil drilling stability; A soil drilling assembly, which is mounted on the support assembly to achieve soil breaking operations and facilitate direct soil detection operations; A sampling assembly, which is installed inside the soil drilling assembly. After the soil breaking operation is completed, the soil at the detection location is directly crushed by the sampling assembly, and the crushed soil particles are picked up at the same time; A detection component is installed inside the sampling component and is directly inserted into the picked-up soil particles to realize direct detection and improve detection accuracy; The discharge assembly is encapsulated at the bottom of the sampling assembly. When the sampling assembly crushes the soil, it blocks the soil below. When soil particles are picked up into the sampling assembly, the soil in the sampling assembly is isolated to prevent it from falling. After the soil detection is completed, the discharge assembly is controlled to discharge the soil in the sampling assembly.

[0008] Preferably, the soil drilling assembly includes a drill barrel, a drill bit is hingedly installed at the bottom of the drill barrel, a first spiral ring is provided on the surface of the drill bit, the drill bit is spliced ​​by three groups of drilling units with the same structure, and a second hydraulic telescopic cylinder is hingedly assembled between the inner wall of each group of drilling units and the bottom of the inner wall of the drill barrel.

[0009] Preferably, the soil drilling assembly further comprises a third hydraulic telescopic cylinder fixed to the top of the inner cavity of the drill tube, an outer protective box is fixedly mounted on the output end of the third hydraulic telescopic cylinder, and a second driving motor is fixedly mounted inside the outer protective box.

[0010] Preferably, the sampling assembly includes a sampling barrel fixed at the output end of the second driving motor, a sampling head is integrally formed at the bottom of the sampling barrel, a second spiral ring is provided on the outer surface of the sampling head, a discharge hole is opened at the bottom end of the sampling head, a flexible filter screen is installed at the top outer edge of the sampling barrel, a spiral blade is provided on the outer side wall of the sampling barrel, a guide plate corresponding to the flexible filter screen is integrally formed at the end of the spiral blade, and the bottom end of the spiral blade is connected and corresponded to the top end of the second spiral ring.

[0011] Preferably, the detection assembly includes a fourth hydraulic telescopic cylinder fixed at the top center of the inner cavity of the sampling tube, a detection probe is fixedly installed at the output end of the fourth hydraulic telescopic cylinder, a cleaning cotton ring is fixed at the bottom of the fourth hydraulic telescopic cylinder, and the cleaning cotton ring matches the detection probe.

[0012] Preferably, the detection assembly also includes a pressure-bearing air storage bag fixedly installed between the third hydraulic telescopic cylinder and the outer protective box, a first pushing member is fixed to the outer edge of the top of the inner cavity of the sampling tube, and the first pushing member is fixedly sleeved on the outer side wall of the fourth hydraulic telescopic cylinder.

[0013] Preferably, a mounting groove matching the flexible filter screen is provided at the top of the sampling tube, and the flexible filter screen is a "concave" shaped filter screen, the first pushing member is fixedly arranged between the flexible filter screen and the fourth hydraulic telescopic cylinder, the first pushing member is a pressure-bearing air bag, and the pressure-bearing air storage bag is connected to the first pushing member through an air duct.

[0014] Preferably, the discharge assembly includes a collecting hopper fixed to the bottom of the inner wall of the sampling tube, a discharge channel corresponding to the discharge hole is opened at the bottom center of the collecting hopper, four groups of material blocking plates with the same structure are hingedly assembled at the bottom of the discharge channel, and the four groups of material blocking plates are assembled into a sealing plate matching the discharge channel.

[0015] Preferably, the outer wall of each group of material blocking plates is a slope, and a second pushing member is fixedly installed between the slope and the inner wall of the discharge channel. The second pushing member is an inflatable air bag, and the inflatable air bag is connected to the first pushing member through an air pipe. The end of each group of material blocking plates is set as an arc surface, and the arc surface has the hinge of the material blocking plate and the collecting hopper as the center of the circle.

[0016] The present invention provides an application of the soil detection device as described above in environmental remediation. Before soil remediation, it is necessary to perform a test based on the soil pH of the remediation site to facilitate the selection of a targeted remediation plan.

[0017] Technical effects and advantages of the present invention: 1. When the third hydraulic telescopic cylinder in the present invention is extended, the sampling component can be deeply inserted into the soil. In this way, as the second hydraulic telescopic cylinder is extended, the soil at the detection position is transported upward by the conveying action of the spiral blade after being crushed, and then sent to the flexible filter net through the guide plate. The flexible filter net is used to screen fine particles of soil. At the same time, the rotation of the second drive motor can accelerate the screening of soil particles by the flexible filter net, thereby realizing the picking up of the detected soil and ensuring the softness of the soil. The fourth hydraulic telescopic cylinder is extended to drive the detection probe to move downward and directly extend into the soil, so that the soil to be detected can be directly crushed, which not only ensures the timeliness of soil collection, but also prevents the problem of damage caused by the detection probe directly inserted into the soil. At the same time, it can also effectively ensure the accuracy of soil detection.

[0018] 2. When discharging materials, the gas inside the pressure air storage bag will be introduced into the first pushing member through the air duct, so that the first pushing member will expand and can squeeze the bottom of the flexible filter screen, causing the flexible filter screen to deform. In this way, when the second driving motor drives the sampling tube to rotate, large soil particles in the flexible filter screen are cleaned out, and anti-blocking treatment is achieved when soil particles are stuck. At the same time, the gas in the first pushing member is introduced into the second pushing member through the air supply pipe, and then the second pushing member is expanded, which can push the four sets of material blocking plates to flip downward, so that the discharge channel can be opened, and the soil remaining in the sampling tube can be discharged through the discharge channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the soil drilling assembly of the present invention; Figure 3 A bottom view of the soil drilling assembly structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the soil drilling assembly of the present invention from a first perspective; Figure 5 A schematic diagram of the internal structure of the soil drilling assembly of the present invention from a second viewing angle; Figure 6 It is a schematic diagram of the structure of the collecting hopper of the present invention; Figure 7 It is a schematic diagram of the enlarged structure of part A of the present invention.

[0020] In the figure: 10, support assembly; 11, top plate; 12, inclined support rod; 13, guide ring; 14, first hydraulic telescopic cylinder; 15, first drive motor; 20, soil drilling assembly; 21, drill barrel; 22, drill bit; 23, first spiral ring; 24, second hydraulic telescopic cylinder; 25, third hydraulic telescopic cylinder; 26, outer protective box; 27, second drive motor; 30, sampling assembly; 31, sampling barrel; 32, sampling head; 33, second spiral ring; 34, discharge hole; 35, flexible filter screen; 36, spiral blade; 37, guide plate; 40, detection assembly; 41, fourth hydraulic telescopic cylinder; 42, detection probe; 43, cleaning cotton ring; 44, pressure storage bag; 45, first pusher; 50, discharge assembly; 51, collecting hopper; 52, discharge channel; 53, material blocking plate; 54, second pusher; 55, arc surface. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] This embodiment provides Figures 1 to 7 A soil detection device shown, comprising: Support assembly 10, support assembly 10 provides installation foundation and improves soil drilling stability; The soil drilling assembly 20 is installed on the support assembly 10 to realize the soil breaking operation and facilitate the direct detection operation of the soil; The sampling assembly 30 is installed inside the soil drilling assembly 20. After the soil breaking operation is completed, the soil at the detection location is directly crushed by the sampling assembly 30, and the crushed soil particles are picked up at the same time; The detection component 40 is installed inside the sampling component 30 and is directly inserted into the picked-up soil particles to realize direct detection and improve detection accuracy; The discharge assembly 50 is encapsulated at the bottom of the sampling assembly 30. When the sampling assembly 30 crushes the soil, the soil below is blocked. When the soil particles are picked up into the sampling assembly 30, the soil in the sampling assembly 30 is isolated to prevent it from falling. After the soil detection is completed, the discharge assembly 50 is controlled to discharge the soil in the sampling assembly 30. Specifically: See also Figure 1 The support assembly 10 includes a top plate 11, and three groups of oblique support rods 12 are evenly distributed at the bottom of the top plate 11. The three groups of oblique support rods 12 are fixedly connected with guide rings 13 matching the soil drilling assembly 20 through connecting rods. A first hydraulic telescopic cylinder 14 is fixed at the bottom of the top plate 11, and a first driving motor 15 is fixedly installed at the output end of the first hydraulic telescopic cylinder 14. The first hydraulic telescopic cylinder 14 can drive the soil drilling assembly 20 to move downward, which is convenient for adjusting the soil depth. The oblique support rods 12 provide stability for the soil drilling assembly 20 when in use, and the guide ring 13 can limit and guide the soil drilling assembly 20.

[0023] See also Figure 2 and Figure 3The soil drilling assembly 20 includes a drill barrel 21, which is fixed at the output end of the first drive motor 15. A drill bit 22 is hingedly installed at the bottom of the drill barrel 21, and a first spiral ring 23 is arranged on the surface of the drill bit 22. The drill bit 22 is spliced ​​by three groups of drilling units with the same structure, and a second hydraulic telescopic cylinder 24 is hingedly installed between the inner side wall of each group of drilling units and the bottom of the inner side wall of the drill barrel 21. When the first drive motor 15 is in motion, it can drive the soil drilling assembly 20 to rotate, so that during the downward movement of the first hydraulic telescopic cylinder 14, the soil drilling assembly 20 can be used to realize the ground breaking and excavation operation, so as to facilitate the collection and sampling of deep soil. After the ground breaking operation is completed, the second hydraulic telescopic cylinder 24 is controlled to move, so that the drilling unit can be pushed to open, and the drilling unit can be used to push away the scattered soil at the drilling position, so that the soil will be directly exposed under the sampling assembly 30.

[0024] See also Figure 2-Figure 5 The soil drilling assembly 20 also includes a third hydraulic telescopic cylinder 25 fixed to the top of the inner cavity of the drill tube 21. The output end of the third hydraulic telescopic cylinder 25 is fixedly installed with an outer protective box 26. A second drive motor 27 is fixedly installed in the outer protective box 26. When the second drive motor 27 is activated, it drives the sampling assembly 30 to rotate, and the soil is crushed by the second spiral ring 33.

[0025] See also Figure 4 and Figure 5 The sampling assembly 30 includes a sampling barrel 31 fixed at the output end of the second driving motor 27, a sampling head 32 is integrally formed at the bottom of the sampling barrel 31, a second spiral ring 33 is provided on the outer surface of the sampling head 32, a discharge hole 34 is opened at the bottom end of the sampling head 32, a flexible filter screen 35 is mounted on the top outer edge of the sampling barrel 31, a spiral blade 36 is provided on the outer side wall of the sampling barrel 31, the spiral blade 36 is similar to a conveying auger, and plays a role in material conveying, and a guide plate 37 corresponding to the flexible filter screen 35 is integrally formed at the end of the spiral blade 36, and the bottom end of the spiral blade 36 is connected and corresponding to the top end of the second spiral ring 33.

[0026] When the third hydraulic telescopic cylinder 25 is extended, the sampling assembly 30 can be pushed deep into the soil. As the third hydraulic telescopic cylinder 25 is extended, the soil at the detection position is crushed and then transported upward by the conveying action of the spiral blades 36, and then sent to the flexible filter screen 35 through the guide plate 37. The flexible filter screen 35 can screen fine particles of soil. At the same time, with the rotation of the second drive motor 27, the centrifugal action can accelerate the screening of soil particles by the flexible filter screen 35, thereby realizing the picking up of the detected soil and ensuring the softness of the soil.

[0027] See also Figure 4 and Figure 5The detection component 40 includes a fourth hydraulic telescopic cylinder 41 fixed at the center of the top of the inner cavity of the sampling tube 31, and a detection probe 42 is fixedly installed at the output end of the fourth hydraulic telescopic cylinder 41. A cleaning cotton ring 43 is fixed at the bottom of the fourth hydraulic telescopic cylinder 41, and the cleaning cotton ring 43 matches the detection probe 42. After the soil collection is completed through the sampling component 30, the fourth hydraulic telescopic cylinder 41 extends outward, driving the detection probe 42 to move downward and directly extend into the soil, so that the soil to be detected can be directly detected, which not only ensures the timeliness of soil collection, but also prevents the problem of damage caused by the detection probe 42 being directly inserted into the soil. It can also effectively ensure the accuracy of soil detection and has strong practicality. After the detection probe 42 completes the soil index collection and detection, the fourth hydraulic telescopic cylinder 41 retracts inward, driving the detection probe 42 to move up and retract into the cleaning cotton ring 43, so that the detection probe 42 can be scraped and cleaned by the cleaning cotton ring 43, so as to achieve the purpose of soil cleaning and prevent the subsequent soil detection from being affected.

[0028] See also Figure 4-Figure 7 The discharge assembly 50 includes a collecting hopper 51 fixed to the bottom of the inner wall of the sampling tube 31, and a discharge channel 52 corresponding to the discharge hole 34 is opened at the bottom center of the collecting hopper 51. Four groups of material blocking plates 53 with the same structure are hingedly assembled at the bottom of the discharge channel 52, and the four groups of material blocking plates 53 are assembled into a sealing plate matching the discharge channel 52. The collecting hopper 51 can seal the bottom of the sampling tube 31. In this way, when the sampling tube 31 rotates and the soil at the detection location is crushed, the collecting hopper 51 and the material blocking plates 53 are used to block the soil below to prevent the soil from entering the sampling tube 31 from the discharge hole 34 and the discharge channel 52 without being crushed, thereby improving the detection accuracy.

[0029] It should be noted that when the soil is crushed and enters the sampling tube 31, since the soil is squeezed into the discharge hole 34, this part of the soil can have a blocking effect on the material blocking plate 53. After the soil sampling is completed, it can prevent the picked up soil from exerting pressure on the material blocking plate 53 to force the material blocking plate 53 to rotate and be discharged from the discharge channel 52, thereby achieving the isolation effect on the picked up soil and improving the detection accuracy of the detection probe 42.

[0030] It is worth mentioning that please refer to Figure 4 and Figure 5The detection component 40 also includes a pressure-bearing air storage bag 44 fixedly installed between the third hydraulic telescopic cylinder 25 and the outer protective box 26. A first pushing member 45 is fixed to the outer edge of the top of the inner cavity of the sampling tube 31, and the first pushing member 45 is fixedly sleeved on the outer side wall of the fourth hydraulic telescopic cylinder 41. A mounting groove matching the flexible filter screen 35 is opened on the top of the sampling tube 31, and the flexible filter screen 35 is a "concave" filter screen. The first pushing member 45 is fixedly arranged between the flexible filter screen 35 and the fourth hydraulic telescopic cylinder 41. The first pushing member 45 is a pressure-bearing air bag, and the pressure-bearing air storage bag 44 is connected to the first pushing member 45 through an air guide tube.

[0031] When the soil test is completed and it is necessary to discharge the material, the third hydraulic telescopic cylinder 25 is controlled to retract, which can drive the sampling tube 31 to move upward. At this time, the sampling tube 31 is pulled out from the position to be tested, and the soil previously introduced into the discharge hole 34 falls out. At the same time, the second drive motor 27 continues to rotate, so that the large particles of soil on the top of the flexible filter screen 35 can be thrown out by centrifugal force, while the soil particles stuck in the flexible filter screen 35 cannot be thrown out by centrifugal force. At this time, since the sampling tube 31 and the outer protective box 26 are synchronously moved in the third hydraulic telescopic cylinder 25, so the pressure storage bag 44 will be compressed, so that the gas inside the pressure storage bag 44 will be introduced into the first pusher 45 through the air duct, so that the first pusher 45 will expand, and can squeeze the bottom of the flexible filter screen 35, causing the flexible filter screen 35 to deform. In this way, when the second driving motor 27 drives the sampling tube 31 to rotate, large soil particles in the flexible filter screen 35 are cleaned out, and anti-blocking treatment is achieved when soil particles are stuck, which provides convenience for the next step of detection.

[0032] See also Figure 6 and Figure 7 The outer wall of each set of material blocking plates 53 is an inclined surface, and a second pushing member 54 is fixedly installed between the inclined surface and the inner wall of the discharge channel 52. The second pushing member 54 is an inflatable air bag, and the inflatable air bag is connected to the first pushing member 45 through an air pipe, and an electromagnetic valve is installed on the air pipe. The end of each set of material blocking plates 53 is set as an arc surface 55, and the arc surface takes the hinge of the material blocking plate 53 and the collecting hopper 51 as the center of the circle.

[0033] After the third hydraulic telescopic cylinder 25 is reset, the air pressure inside the first push member 45 reaches the maximum, and the second drive motor 27 also stops rotating synchronously, so that the soil particles stuck in the flexible filter screen 35 will also be cleaned up. At this time, the solenoid valve is controlled to open, and the gas in the first push member 45 is introduced into the second push member 54 through the air pipe, thereby causing the second push member 54 to expand, so that the four groups of material blocking plates 53 can be pushed to flip downward, so that the discharge channel 52 can be opened, and the soil remaining in the sampling tube 31 can be discharged through the discharge channel 52, and then discharged from the sampling tube 31 through the discharge hole 34, completing the external discharge of the picked up soil, and then controlling the first hydraulic telescopic cylinder 14 to retract, which can drive the drilling assembly 20 to reset, and at the same time, the second hydraulic telescopic cylinder 24 retracts, which can drive the drilling unit to reset, completing the packaging of the bottom of the drill tube 21, and completing the soil detection work.

[0034] The present embodiment also discloses an application of the soil detection device as described above in environmental remediation. Before soil remediation, it is necessary to detect the soil pH at the remediation site to facilitate the selection of a targeted remediation plan. That is, when in use, the soil-breaking operation is realized by the soil drilling component 20, which is convenient for direct soil detection operations. The soil at the detection location is directly crushed by the sampling component 30, and the crushed soil particles are picked up at the same time. The detection component 40 can be directly inserted into the picked up soil particles to realize direct detection, thereby improving the detection accuracy. The discharge component 50 blocks the soil below when the sampling component 30 crushes the soil. When the soil particles are picked up into the sampling component 30, the soil in the sampling component 30 is isolated to prevent it from falling. After the soil detection is completed, the discharge component 50 is controlled to discharge the soil in the sampling component 30.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil detection device, characterized in that: include: A support assembly (10), wherein the support assembly (10) provides a mounting foundation and improves soil drilling stability; A soil drilling assembly (20), wherein the soil drilling assembly (20) is mounted on the support assembly (10) to achieve soil breaking operations and facilitate direct soil detection operations; A sampling assembly (30), wherein the sampling assembly (30) is installed inside the soil drilling assembly (20), and after the soil breaking operation is completed, the soil at the location to be detected is directly crushed by the sampling assembly (30), and the crushed soil particles are picked up at the same time; A detection component (40), wherein the detection component (40) is installed inside the sampling component (30) and is directly inserted into the picked-up soil particles to realize direct detection, thereby improving detection accuracy; A discharge assembly (50) is encapsulated at the bottom end of the sampling assembly (30) and blocks the soil below when the sampling assembly (30) crushes the soil. When soil particles are picked up into the sampling assembly (30), the soil in the sampling assembly (30) is isolated to prevent it from falling. After the soil detection is completed, the discharge assembly (50) is controlled to discharge the soil in the sampling assembly (30).

2. The soil detection device according to claim 1, characterized in that: The soil drilling assembly (20) comprises a drill barrel (21), a drill bit (22) being hingedly mounted on the bottom of the drill barrel (21), a first spiral ring (23) being arranged on the surface of the drill bit (22), the drill bit (22) being formed by splicing three groups of drilling units with the same structure, and a second hydraulic telescopic cylinder (24) being hingedly mounted between the inner side wall of each group of drilling units and the bottom of the inner side wall of the drill barrel (21).

3. The soil detection device according to claim 2, characterized in that: The soil drilling assembly (20) further comprises a third hydraulic telescopic cylinder (25) fixed to the top of the inner cavity of the drill tube (21), an outer protective box (26) being fixedly mounted on the output end of the third hydraulic telescopic cylinder (25), and a second drive motor (27) being fixedly mounted inside the outer protective box (26).

4. The soil detection device according to claim 3, characterized in that: The sampling assembly (30) comprises a sampling barrel (31) fixed to the output end of a second drive motor (27); a sampling head (32) is integrally formed at the bottom of the sampling barrel (31); a second spiral ring (33) is provided on the outer surface of the sampling head (32); a discharge hole (34) is provided at the bottom end of the sampling head (32); a flexible filter screen (35) is mounted on the top outer edge of the sampling barrel (31); a spiral blade (36) is provided on the outer side wall of the sampling barrel (31); a guide plate (37) corresponding to the flexible filter screen (35) is integrally formed at the end of the spiral blade (36); and the bottom end of the spiral blade (36) is connected and corresponds to the top end of the second spiral ring (33).

5. The soil detection device according to claim 4, characterized in that: The detection assembly (40) comprises a fourth hydraulic telescopic cylinder (41) fixed at the center of the top of the inner cavity of the sampling tube (31), a detection probe (42) being fixedly mounted on the output end of the fourth hydraulic telescopic cylinder (41), a cleaning cotton ring (43) being fixed on the bottom of the fourth hydraulic telescopic cylinder (41), and the cleaning cotton ring (43) and the detection probe (42) being matched.

6. The soil detection device according to claim 5, characterized in that: The detection assembly (40) further comprises a pressure-bearing air storage bag (44) fixedly mounted between the third hydraulic telescopic cylinder (25) and the outer protective box (26); a first pusher (45) is fixedly mounted on the outer edge of the top of the inner cavity of the sampling tube (31); and the first pusher (45) is fixedly sleeved on the outer side wall of the fourth hydraulic telescopic cylinder (41).

7. The soil detection device according to claim 6, characterized in that: The sampling tube (31) has a mounting groove at the top thereof which matches the flexible filter screen (35), and the flexible filter screen (35) is a concave filter screen. The first pushing member (45) is fixedly arranged between the flexible filter screen (35) and the fourth hydraulic telescopic cylinder (41). The first pushing member (45) is a pressure-bearing air bag, and the pressure-bearing air storage bag (44) is connected to the first pushing member (45) via an air guide tube.

8. The soil detection device according to claim 7, characterized in that: The discharge assembly (50) comprises a collecting hopper (51) fixed to the bottom of the inner wall of the sampling tube (31), a discharge channel (52) corresponding to the discharge hole (34) is provided at the center of the bottom of the collecting hopper (51), and four groups of material blocking plates (53) with the same structure are hingedly assembled at the bottom of the discharge channel (52), and the four groups of material blocking plates (53) are assembled into a sealing plate matching the discharge channel (52).

9. The soil detection device according to claim 8, characterized in that: The outer wall of each group of material blocking plates (53) is an inclined surface, and a second pushing member (54) is fixedly mounted between the inclined surface and the inner wall of the material discharge channel (52), the second pushing member (54) is an inflatable air bag, and the inflatable air bag is connected to the first pushing member (45) through an air pipe, and the end of each group of material blocking plates (53) is arranged as an arc surface, and the arc surface takes the hinge between the material blocking plate (53) and the collecting hopper (51) as the center of the circle.

10. Use of the soil detection device according to claim 9 in environmental remediation.

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