Mine ecological restoration soil sample detection experiment device and method thereof

Abstract

The invention discloses a mine ecological restoration soil sample detection experiment device and a method thereof, belongs to the technical field of soil sample detection, and provides the following scheme that the mine ecological restoration soil sample detection experiment device comprises a supporting mechanism, a detection and sampling mechanism is arranged on the supporting mechanism, and the supporting mechanism comprises an outer supporting frame assembly; sampling control assemblies are arranged on the two sides of the outer supporting assembly, the bottom ends of the sampling control assemblies are connected with steering adjusting assemblies, and a disc is fixedly connected to a steering shaft of each steering adjusting assembly; the detection probe extends out through the adjusting assembly, soil can be preliminarily detected through the detection probe, resource waste caused by blind sampling is avoided, the sampling pertinence is greatly improved, after sampling is completed, a sampling opening is reserved, at the moment, the detection probe extends into the sampling opening to detect the interior of soil, and the detection efficiency is improved. The pollution degree of surface soil and deep soil can be visually compared, data support is provided for real-time sampling strategy adjustment, and the accuracy and efficiency of soil sample detection are further improved.

Description

Technical Field

[0001] This invention relates to the field of soil sample testing technology, and in particular to an experimental apparatus and method for testing soil samples in mine ecological restoration. Background Technology

[0002] Soils left behind after mining operations often suffer from problems such as excessive heavy metals and nutrient imbalances. Soil sampling is a core basis for developing ecological restoration plans. However, most existing soil sampling experimental devices rely on manual experience to determine sampling areas and lack the preliminary screening function of intelligent sensors. This can easily lead to blind sampling of areas with no abnormalities or slight pollution, wasting testing resources and resulting in low efficiency. Even if some devices are equipped with detection elements, they can only detect the soil surface and cannot conduct deep testing in the trenches after excavation. It is difficult to compare the pollution differences between the surface and deep soil, leading to a lag in adjusting sampling strategies. At the same time, the sampling often uses pulverizing soil extraction, which not only fails to extract soil samples in layers but also damages the original soil structure. This makes it difficult to achieve effective backfilling after sampling, exacerbating the disturbance to the fragile ecological environment of the mine and hindering the overall progress of ecological restoration.

[0003] To address the above problems, this invention proposes an experimental device and method for testing soil samples in mine ecological restoration. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing soil sampling experimental devices, which mostly rely on manual experience to determine the sampling area. This leads to blind sampling of areas without abnormalities or with slight pollution, wasting testing resources and resulting in low efficiency. Furthermore, these devices cannot perform deep testing inside the excavated holes, making it difficult to compare the pollution differences between the surface and deep soil layers, resulting in delayed adjustments to the sampling strategy. Additionally, the common practice of using pulverized soil sampling not only fails to extract soil samples in layers but also damages the original soil structure, making effective backfilling difficult after sampling. Therefore, this invention proposes a soil sampling experimental device and method for mine ecological restoration.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A soil sample testing device for mine ecological restoration includes a support mechanism, on which a testing and sampling mechanism is provided;

[0007] The support mechanism includes an outer support frame assembly, sampling control components are provided on both sides of the outer support assembly, a steering adjustment assembly is connected to the bottom end of the sampling control assembly, a disc is fixedly connected to the steering shaft of the steering adjustment assembly, and a guide opening is provided on the disc.

[0008] The detection and sampling mechanism includes a sampling chamber, with two steering adjustment components connected to both sides of the sampling chamber. A flip sampling component is provided on the sampling chamber, and an adjustment component is provided inside the sampling chamber. A detection probe is provided below the adjustment component.

[0009] Both sides of the sampling chamber are provided with air pressure limiting components. The sliding pin of the air pressure limiting component slides in the guide port. The two piston pins of the air pressure limiting component are respectively adapted to the upper locking port and the lower locking port of the adjusting component.

[0010] Preferably, the external support frame assembly includes two connecting frames, with handles fixedly connected to both sides of the upper connecting frame, and four sliding rods fixedly connected between the two connecting frames, with sliding sleeves slidably connected to the sliding rods.

[0011] Preferably, the sampling control component includes a first electric push rod, the bottom end of which is fixedly connected to a fixed plate. The fixed plate has two slots and is fixedly connected to two sliding sleeves.

[0012] Preferably, the steering adjustment assembly includes a steering shaft, which is rotatably mounted on a fixed disk via bearings, and both ends of the steering shaft are fixed to the sampling chamber and the connecting disk, respectively.

[0013] Preferably, the connecting plate is provided with two pins, which are engaged in the sockets. One end of each pin is fixedly connected to a handle, and a first spring is fixedly connected between the handle and the connecting plate.

[0014] Preferably, the flipping sampling assembly includes a side cover, which is hinged to the sampling chamber via a hinge. Two pin sleeves are fixedly connected to one side of the side cover, and a fixing pin is engaged in the pin sleeve. The fixing pin slides in a pin holder, which is fixedly connected to the sampling chamber. A second spring is fixedly connected to one end of the pin holder and the fixing pin. A through hole is provided on the sampling chamber.

[0015] Preferably, the adjustment assembly includes a second electric push rod and a telescopic frame. The telescopic frame is hinged to three movable frames, and the other three shaft pins of the telescopic frame slide in the sliding openings of the three movable frames respectively. The two ends of the movable frames slide on two guide rails respectively. The guide rails are fixed in the sampling chamber, and both ends of the movable frames are provided with locking openings.

[0016] The two ends of the second electric push rod are fixed to the push plate and the movable plate, respectively. The push plate and the movable plate are set in the sampling chamber. The detection probe is installed on the movable plate, and the upper movable frame and the lower movable frame are fixed to the push plate and the movable plate, respectively.

[0017] Preferably, the pneumatic limiting component includes an outer cylinder, which is fixedly connected to the sampling chamber. A piston rod is provided inside the outer cylinder, which extends out of the outer cylinder and is fixedly connected to a sliding pin. The arc of the guide port gradually approaches the edge of the disc.

[0018] Preferably, the two ends of the outer cylinder are fixed to the two side cylinders respectively through two pipes. The side cylinders are installed on the sampling chamber, and the sampling chamber is provided with piston pins. The two piston pins switch to engage with the two locking ports.

[0019] A method for using a soil sample testing apparatus for mine ecological restoration includes the following steps:

[0020] S1. When sampling and testing, the second electric push rod is used to adjust and extend the sampling chamber so that the detection probe is exposed. At this time, surface testing is performed. If an abnormality is detected, the detection probe is retracted and the handle is operated to disengage the pin from the socket. Then, the handle is rotated to switch the positions of the two ends of the sampling chamber. The first spring is used to reset the handle so that the pin is reinserted into the socket.

[0021] S2. Then, keep the whole stable by the handle and control the movement of the fixed plate by the first electric push rod, so that the sampling control component drives the sampling chamber to move. The sampling chamber is inserted into the soil to take a sample. When the sample reaches a certain depth, the first electric push rod retracts, so that the sampling chamber is reset upward. Then, the sampling chamber is rotated again to exchange the two ends. At this time, the detection probe is pushed down by the adjustment component to enter the soil sampling port for internal detection. After the detection, the detection probe is retracted.

[0022] S3. During sampling, place the sampling chamber horizontally, pull out the pin sleeve, and open the side cover. At this time, samples at different depths are sampled separately. After sampling, close the side cover and continue to rotate the sampling chamber so that the disc follows the sampling chamber. The sliding pin slides along the guide port towards the edge of the disc, causing the sliding pin to drive the piston rod to move. The piston rod moves the piston pins at both ends through air pressure control, causing the piston pin near the push plate to disengage from the locking port, while the other piston pin engages in the locking port. At this time, the adjusting component smoothly drives the push plate to move, causing the push plate to push the soil into the newly excavated sampling port, thus completing the sample backfilling.

[0023] Compared with the prior art, the present invention provides an experimental device and method for testing soil samples in mine ecological restoration, which has the following beneficial effects:

[0024] 1. The experimental device and method for soil sample testing in mine ecological restoration allows the detection probe to extend through an adjustable component, enabling preliminary soil testing. This avoids resource waste caused by blind sampling and significantly improves the targeting of sampling. After sampling, a sampling port is left, allowing the detection probe to be inserted into the sampling port for internal soil testing. This provides a direct comparison of the pollution levels in the surface and deep soil, providing data support for real-time adjustment of sampling strategies and further improving the accuracy and efficiency of soil sample testing.

[0025] 2. The experimental device and method for testing soil samples for mine ecological restoration can extract soil samples at different depths by opening the side cover, ensuring that the test data can reflect the vertical distribution characteristics of the soil, providing a more comprehensive basis for the formulation of restoration plans, and completely preserving the original state of each soil layer. After sampling, the soil can be directly backfilled into the sampling port by adjusting the components, restoring the original structure of the soil to the greatest extent.

[0026] 3. The experimental device and method for testing soil samples in mine ecological restoration involves a sampling control component driving a steering adjustment component downwards to allow the sampling chamber to sample downwards. After sampling, the two ends of the sampling chamber are swapped, allowing the air pressure limiting component to work with the guide port to switch and lock the two ends of the adjustment component. This allows the adjustment component to not only control the detection probe to enter the newly excavated sampling port for testing, but also to completely backfill the soil into the sampling port by switching the fixed point. This provides a clear depth range and key areas for stratified sampling. Furthermore, by switching the fixed point, the testing and backfilling operations can be switched, achieving a dual function of the structure and reducing redundant structures. At the same time, the linkage and cooperation between the structures effectively improve the efficiency of the operation. Attached Figure Description

[0027] Figure 1 This is a three-dimensional view of a soil sample testing device for mine ecological restoration proposed in this invention;

[0028] Figure 2 This is a perspective view of the connection between the external support frame assembly and the sampling control assembly of a soil sample testing device for mine ecological restoration proposed in this invention.

[0029] Figure 3 This is a cross-sectional perspective view of the external support component of a soil sample testing device for mine ecological restoration proposed in this invention.

[0030] Figure 4 This is a three-dimensional view of the sampling chamber of a soil sample testing device for mine ecological restoration proposed in this invention;

[0031] Figure 5 This is a perspective view of the connection between the sampling chamber and the flipping sampling component of a soil sample testing device for mine ecological restoration proposed in this invention.

[0032] Figure 6 This is a cross-sectional perspective view of the adjustment component of a soil sample testing device for mine ecological restoration proposed in this invention.

[0033] Figure 7 This is a three-dimensional cross-sectional view of the sampling chamber of a soil sample testing device for mine ecological restoration proposed in this invention.

[0034] Figure 8 This is a three-dimensional view of the disc of a soil sample testing device for mine ecological restoration proposed in this invention;

[0035] Figure 9 This is a cross-sectional perspective view of the steering adjustment component of a soil sample testing device for mine ecological restoration proposed in this invention.

[0036] Figure 10 In this invention Figure 7 A magnified view of point A.

[0037] In the diagram: 100, Support mechanism; 101, Outer support frame assembly; 1011, Connecting frame; 1012, Slide rod; 1013, Handle; 1014, Sliding sleeve; 102, Steering adjustment assembly; 1021, Handle; 1022, Pin; 1023, First spring; 1024, Connecting plate; 1025, Steering shaft; 103, Sampling control assembly; 1031, First electric push rod; 1032, Fixed plate; 1033, Socket; 104, Guide port; 105, Disc; 200, Detection and sampling mechanism; 201, Sampling chamber; 202, Tilting sampling group Components; 2021, Side cover; 2022, Pin holder; 2023, Pin sleeve; 2024, Second spring; 2025, Fixing pin; 203, Through hole; 204, Detection probe; 205, Adjustment assembly; 2051, Second electric push rod; 2052, Movable plate; 2053, Guide rail; 2054, Telescopic frame; 2055, Push plate; 2056, Movable frame; 2057, Locking port; 206, Pneumatic limit assembly; 2061, Outer cylinder; 2062, Piston rod; 2063, Sliding pin; 2064, Piston pin; 2065, Side cylinder; 2066, Pipe. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0040] Example 1: Refer to Figures 1-10 A soil sample testing device for mine ecological restoration includes a support structure 100, on which a testing and sampling mechanism 200 is provided;

[0041] The support mechanism 100 includes an outer support frame assembly 101, which includes two connecting frames 1011. Handles 1013 are fixedly connected to both sides of the upper connecting frame 1011, providing force application points to ensure overall stability during sampling and facilitate sampling operations. Four sliding rods 1012 are fixedly connected between the two connecting frames 1011. Sliding sleeves 1014 are slidably connected to the sliding rods 1012, allowing for smooth sliding on the sliding rods 1012, thus ensuring stable movement of the steering adjustment assembly 102 and the sampling chamber 201. Sampling control components 103 are provided on both sides of the outer support assembly. The sampling control component 103 includes a first electric push rod 1031, and a fixed plate 1032 is fixedly connected to the bottom end of the first electric push rod 1031. The first electric push rod 1031 controls the steering adjustment component 102 to move downward, so that the sampling chamber 201 is driven into the soil. Since the soil is compacted, the sampling operation can be carried out smoothly. The fixed plate 1032 has two insertion ports 1033 and is fixedly connected to two sliding sleeves 1014. The bottom end of the sampling control component 103 is connected to the steering adjustment component 102. A disc 105 is fixedly connected to the steering shaft 1025 of the steering adjustment component 102. A guide port 104 is provided on the disc 105.

[0042] The detection and sampling mechanism 200 includes a sampling chamber 201. Two steering adjustment assemblies 102 are connected to both sides of the sampling chamber 201. Each steering adjustment assembly 102 includes a steering shaft 1025, which is rotatably mounted on a fixed disk 1032 via bearings. The steering shaft 1025 can rotate smoothly via the bearings, thereby switching between the two ends of the sampling chamber 201 for easy switching between sampling and detection operations. The two ends of the steering shaft 1025 are fixed to the sampling chamber 201 and a connecting disk 1024, respectively. Two pins 1022 are threaded through the connecting disk 1024. 022 is engaged in the socket 1033. One end of each of the two pins 1022 is fixedly connected to a handle 1021. The handle 1021 provides a force point, which makes it easy to move the pins 1022 out of the socket 1033, thereby facilitating the rotation of the steering shaft 1025. A first spring 1023 is fixedly connected between the handle 1021 and the connecting plate 1024. The first spring 1023 can drive the pins 1022 to reset, so that the pins 1022 can be inserted into the socket 1033, thereby fixing the angle of the steering shaft 1025 and maintaining the stability of the sampling chamber 201.

[0043] A flipping sampling assembly 202 is provided on the sampling chamber 201. An adjustment assembly 205 is provided inside the sampling chamber 201. The adjustment assembly 205 includes a second electric push rod 2051 and a telescopic frame 2054. The telescopic frame 2054 is hinged to three movable frames 2056, and the other three pins of the telescopic frame 2054 slide in the sliding openings of the three movable frames 2056. The three ends of the telescopic frame 2054 slide in the sliding openings of the movable frames 2056, thereby ensuring smooth extension and retraction of the telescopic frame 2054. Smooth extension and retraction of the telescopic frame 2054 maintains the stable movement of the push plate 2055 and the movable plate 2052. The two ends of the movable frames 2056 slide on two guide rails 2053, which ensure smooth sliding of the movable frames 2056. The guide rails 2053 are fixed in the sampling chamber 201, and the movable frames 2056... Both ends are provided with locking ports 2057. The two ends of the second electric push rod 2051 are fixed to the push plate 2055 and the movable plate 2052 respectively. The second electric push rod 2051 pushes the movable plate 2052 to move, so that the detection probe 204 can extend out of the sampling chamber 201. Soil surface detection can be performed through the detection probe 204. The detection probe 204 can be retracted into the sampling chamber 201, thereby protecting the detection probe 204. At the same time, plugs can be added to both ends of the detection probe 204 for sealing protection. The push plate 2055 and the movable plate 2052 are set in the sampling chamber 201. The detection probe 204 is installed on the movable plate 2052. The upper movable frame 2056 and the lower movable frame 2056 are fixed to the push plate 2055 and the movable plate 2052 respectively. The detection probe 204 is set below the adjusting component 205.

[0044] Both sides of the sampling chamber 201 are equipped with air pressure limiting components 206. Each air pressure limiting component 206 includes an outer cylinder 2061, which is fixedly connected to the sampling chamber 201. Inside the outer cylinder 2061 is a piston rod 2062, which extends out of the outer cylinder 2061 and is fixedly connected to a sliding pin 2063. The arc of the guide port 104 gradually approaches the edge of the disc 105. The upward expansion of the arc of the guide port 104 allows the two ports of the sampling chamber 201 to switch up and down, enabling the sliding pin 2063 to smoothly move when the guide port 104 is in motion. This controls the movement of the piston rod 2062, allowing the piston rod 2062 to use air pressure to move the piston pin 2064, thus controlling the movement of the two piston pins 2063. 064 switches into locking port 2057, thereby switching the positions of fixed push plate 2055 and movable plate 2052, and thus switching between backfilling soil and pushing out detection probe 204. The two ends of outer cylinder 2061 are fixed to two side cylinders 2065 respectively through two pipes 2066. Side cylinders 2065 are installed on sampling chamber 201. Piston pins 2064 are provided in sampling chamber 201. The two piston pins 2064 switch to engage with the two locking ports 2057. The sliding pin 2063 of air pressure limiting component 206 slides in guide port 104. The two piston pins 2064 of air pressure limiting component 206 are respectively adapted to the upper locking port 2057 and the lower locking port 2057 of adjusting component 205.

[0045] In this embodiment: the second electric push rod 2051 drives the movable plate 2052 to move, causing the detection probe 204 to extend out of the sampling chamber 201. The detection probe 204 can then be used to perform preliminary soil testing, avoiding the waste of resources caused by blind sampling and greatly improving the targeting of sampling. After sampling is completed, a sampling port will be left. At this time, the detection probe 204 can be inserted into the sampling port to perform internal soil testing. The pollution level of the surface soil and the deep soil can be directly compared, providing data support for real-time adjustment of the sampling strategy and further improving the accuracy and efficiency of soil sample testing.

[0046] Example 2: Refer to Figure 5A soil sample testing device for mine ecological restoration includes a flipping sampling component 202. The flipping sampling component 202 includes a side cover 2021, which is hinged to a sampling chamber 201. Opening the side cover 2021 facilitates segmented sampling of the soil in the sampling chamber 201. Two pin sleeves 2023 are fixedly connected to one side of the side cover 2021, and fixing pins 2025 are engaged within the pin sleeves 2023. 5. Sliding in the pin frame 2022, the pin frame 2022 is fixedly connected to the sampling chamber 201, and a second spring 2024 is fixedly connected to one end of the pin frame 2022 and the fixing pin 2025. The second spring 2024 drives the fixing pin 2025 to be inserted into the pin sleeve 2023, thereby fixing the side cover 2021 and preventing the side cover 2021 from opening, thus ensuring that the sampling chamber 201 can complete the sampling operation smoothly. The sampling chamber 201 is provided with a through hole 203.

[0047] In this embodiment: after opening the side cover 2021, soil samples at different depths in the sampling chamber 201 can be extracted layer by layer to ensure that the test data can reflect the vertical distribution characteristics of the soil, provide a more comprehensive basis for the formulation of remediation plans, and completely preserve the original state of each soil layer. After sampling, the soil can be smoothly backfilled directly into the sampling port through the adjustment component 205 to restore the original structure of the soil to the greatest extent.

[0048] Example 3: Reference Figures 1-5 and Figure 7 -- Figure 8 A soil sample testing experimental device for mine ecological restoration includes a support mechanism 100. The support mechanism 100 includes an outer support frame assembly 101. Sampling control components 103 are provided on both sides of the outer support assembly. A steering adjustment component 102 is connected to the bottom end of the sampling control component 103. A disc 105 is fixedly connected to the steering shaft 1025 of the steering adjustment component 102. A guide port 104 is opened on the disc 105.

[0049] The detection and sampling mechanism 200 includes a sampling chamber 201, with two steering adjustment components 102 connected to both sides of the sampling chamber 201 respectively. A flip sampling component 202 is provided on the sampling chamber 201, and an adjustment component 205 is provided inside the sampling chamber 201. A detection probe 204 is provided below the adjustment component 205.

[0050] Both sides of the sampling chamber 201 are provided with air pressure limiting components 206. The sliding pin 2063 of the air pressure limiting component 206 slides in the guide port 104. The two piston pins 2064 of the air pressure limiting component 206 are respectively matched with the upper locking port 2057 and the lower locking port 2057 of the adjusting component 205.

[0051] In this embodiment: the sampling control component 103 drives the steering adjustment component 102 to move downward, so that the sampling chamber 201 can sample downward. After sampling, the two ends of the sampling chamber 201 are swapped, so that the air pressure limiting component 206 cooperates with the guide port 104 to switch and lock the two ends of the adjustment component 205. This allows the adjustment component 205 to not only control the detection probe 204 to enter the newly excavated sampling port for detection, but also to completely backfill the soil into the sampling port by switching the fixed point. This provides a clear depth range and key areas for stratified sampling. Moreover, by switching the fixed point, the detection and backfilling of soil operations can be switched, realizing the dual function of the structure and reducing redundant structures. At the same time, the linkage and cooperation between the structures effectively improves the efficiency of the operation.

[0052] A method for using a soil sample testing apparatus for mine ecological restoration includes the following steps:

[0053] S1. When sampling and testing, the second electric push rod 2051 is used to adjust and extend the sampling chamber 201 so that the detection probe 204 is exposed. At this time, surface testing is performed. If an abnormality is detected, the detection probe 204 is retracted and the handle 1021 is operated to drive the pin 1022 to disengage from the socket 1033. Then, the handle 1021 is used to rotate the connecting plate 1024 and the steering shaft 1025 to switch the positions of the two ends of the sampling chamber 201. Then, the first spring 1023 drives the handle 1021 to reset so that the pin 1022 is reinserted into the socket 1033.

[0054] S2. Then, the handle 1013 is used to keep the whole stable, and the first electric push rod 1031 is used to control the movement of the fixed plate 1032, so that the sampling control component 103 drives the sampling chamber 201 to move. The sampling chamber 201 is inserted into the soil to take a sample. When the sample reaches a certain depth, the first electric push rod 1031 retracts, so that the sampling chamber 201 is reset upward. The sampling chamber 201 is rotated again to interchange the two ends. At this time, the detection probe 204 is pushed down by the adjustment component 205 to enter the soil sampling port for internal detection. After the detection, the detection probe 204 is retracted.

[0055] S3. During sampling, the sampling chamber 201 is placed horizontally, and the fixing pin 2025 is pulled out of the pin sleeve 2023. The side cover 2021 is opened. At this time, samples at different depths are sampled separately. After sampling, the side cover 2021 is closed, and then the sampling chamber 201 is flipped again, so that the disc 105 follows the sampling chamber 201 and slides the sliding pin 2063 along the guide port 104 to the edge of the disc 105. The sliding pin 2063 drives the piston rod 2062 to move. The piston rod 2062 moves the piston pins 2064 at both ends through air pressure control. The piston pin 2064 near the push plate 2055 is disengaged from the locking port 2057, while the other piston pin 2064 is engaged in the locking port 2057. At this time, the adjusting component 205 smoothly drives the push plate 2055 to move, so that the push plate 2055 pushes the soil into the newly excavated sampling port, thereby completing the sample backfilling.

[0056] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A soil sample testing device for mine ecological restoration, comprising a support mechanism (100), characterized in that, The support mechanism (100) is equipped with a detection and sampling mechanism (200); The support mechanism (100) includes an outer support frame assembly (101), and sampling control components (103) are provided on both sides of the outer support assembly. The bottom end of the sampling control component (103) is connected to a steering adjustment component (102). A disc (105) is fixedly connected to the steering shaft (1025) of the steering adjustment component (102), and a guide port (104) is provided on the disc (105). The detection and sampling mechanism (200) includes a sampling cavity (201), with two steering adjustment components (102) connected to both sides of the sampling cavity (201) respectively. A flip sampling component (202) is provided on the sampling cavity (201), and an adjustment component (205) is provided inside the sampling cavity (201). A detection probe (204) is provided below the adjustment component (205). Both sides of the sampling chamber (201) are provided with air pressure limiting components (206). The sliding pin (2063) of the air pressure limiting component (206) slides in the guide port (104). The two piston pins (2064) of the air pressure limiting component (206) are respectively adapted to the upper locking port (2057) and the lower locking port (2057) of the adjusting component (205).

2. The experimental device for testing soil samples in mine ecological restoration according to claim 1, characterized in that, The outer support frame assembly (101) includes two connecting frames (1011). Handles (1013) are fixedly connected to both sides of the upper connecting frame (1011). Four sliding rods (1012) are fixedly connected between the two connecting frames (1011). Sliding sleeves (1014) are slidably connected to the sliding rods (1012).

3. The experimental device for testing soil samples in mine ecological restoration according to claim 2, characterized in that, The sampling control component (103) includes a first electric push rod (1031), the bottom end of which is fixedly connected to a fixed plate (1032). The fixed plate (1032) has two slots (1033) and is fixedly connected to two sliding sleeves (1014).

4. The experimental device for testing soil samples in mine ecological restoration according to claim 3, characterized in that, The steering adjustment assembly (102) includes a steering shaft (1025), which is rotatably mounted on a fixed disk (1032) via bearings. The two ends of the steering shaft (1025) are fixed to the sampling chamber (201) and the connecting disk (1024), respectively.

5. The experimental device for testing soil samples in mine ecological restoration according to claim 4, characterized in that, Two pins (1022) are provided on the connecting plate (1024). The pins (1022) are engaged in the socket (1033). One end of the two pins (1022) is fixedly connected to a handle (1021). A first spring (1023) is fixedly connected between the handle (1021) and the connecting plate (1024).

6. The experimental device for testing soil samples in mine ecological restoration according to claim 5, characterized in that, The flipping sampling assembly (202) includes a side cover (2021), which is hinged to the sampling chamber (201) by a hinge. Two pin sleeves (2023) are fixedly connected to one side of the side cover (2021). A fixing pin (2025) is engaged in the pin sleeve (2023). The fixing pin (2025) slides in the pin holder (2022), which is fixedly connected to the sampling chamber (201). A second spring (2024) is fixedly connected to one end of the pin holder (2022) and the fixing pin (2025). A through hole (203) is provided on the sampling chamber (201).

7. The experimental apparatus for testing soil samples in mine ecological restoration according to claim 6, characterized in that, The adjustment assembly (205) includes a second electric push rod (2051) and a telescopic frame (2054). The telescopic frame (2054) is hinged to three movable frames (2056), and the other three pins of the telescopic frame (2054) slide in the sliding openings of the three movable frames (2056). The two ends of the movable frames (2056) slide on two guide rails (2053), which are fixed in the sampling chamber (201). Locking openings (2057) are provided at both ends of the movable frames (2056). The two ends of the second electric push rod (2051) are fixed to the push plate (2055) and the movable plate (2052) respectively. The push plate (2055) and the movable plate (2052) are set in the sampling chamber (201). The detection probe (204) is installed on the movable plate (2052), and the upper movable frame (2056) and the lower movable frame (2056) are fixed to the push plate (2055) and the movable plate (2052) respectively.

8. The experimental apparatus for testing soil samples in mine ecological restoration according to claim 7, characterized in that, The pneumatic limiting assembly (206) includes an outer cylinder (2061), which is fixedly connected to the sampling chamber (201). A piston rod (2062) is provided inside the outer cylinder (2061). The piston rod (2062) extends out of the outer cylinder (2061) and is fixedly connected to the sliding pin (2063). The arc of the guide port (104) gradually approaches the edge of the disk (105) upwards.

9. The experimental device for testing soil samples in mine ecological restoration according to claim 8, characterized in that, The outer cylinder (2061) is fixed to two side cylinders (2065) at both ends by two pipes (2066). The side cylinders (2065) are installed on the sampling chamber (201). The sampling chamber (201) is provided with piston pins (2064). The two piston pins (2064) switch to engage with two locking ports (2057).

10. The method of using the experimental apparatus for testing soil samples in mine ecological restoration according to claim 9, characterized in that, Includes the following steps: S1. When sampling and testing, the second electric push rod (2051) is used to adjust and extend the sampling chamber (201) so that the detection probe (204) is exposed. At this time, surface testing is performed. If an abnormality is detected, the detection probe (204) is retracted and the handle (1021) is used to drive the pin (1022) to disengage from the socket (1033). Then, the handle (1021) is used to rotate the connecting plate (1024) and the steering shaft (1025) to switch the positions of the two ends of the sampling chamber (201). Then, the first spring (1023) is used to drive the handle (1021) to reset so that the pin (1022) is inserted into the socket (1033) again. S2. Then, the handle (1013) is used to keep the whole stable and the fixed plate (1032) is moved by the first electric push rod (1031), so that the sampling control component (103) drives the sampling chamber (201) to move. The sampling chamber (201) is inserted into the soil to take a sample. When the sample reaches a certain depth, the first electric push rod (1031) retracts, so that the sampling chamber (201) is reset upward. The sampling chamber (201) is rotated again to exchange the two ends. At this time, the detection probe (204) is pushed down by the adjustment component (205) to enter the soil sampling port for internal detection. After the detection, the detection probe (204) is retracted. S3. During sampling, place the sampling chamber (201) horizontally and pull out the pin sleeve (2023) from the fixing pin (2025). Open the side cover (2021). At this time, samples at different depths are sampled separately. After sampling, close the side cover (2021) and then continue to rotate the sampling chamber (201) so that the disc (105) rotates with the sampling chamber (201). Also, slide the sliding pin (2063) along the guide port (104) towards the edge of the disc (105) so that the sliding pin (2063) slides along the guide port (104) towards the edge of the disc (105). 063) Drive the piston rod (2062) to move. The piston rod (2062) controls the piston pins (2064) at both ends to move through air pressure. At this time, the piston pin (2064) close to the push plate (2055) disengages from the locking port (2057), while the other piston pin (2064) is engaged in the locking port (2057). At this time, the adjusting component (205) smoothly drives the push plate (2055) to move, so that the push plate (2055) pushes the soil into the newly excavated sampling port, thereby completing the sample backfilling.

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