Slope farmland undisturbed soil ripening detection sampling device and detection method

Abstract

The invention discloses a slope cropland undisturbed soil ripening detection sampling device and a detection method, and relates to the technical field of soil detection sampling, the slope cropland undisturbed soil ripening detection sampling device comprises a working frame, and the top end of the working frame is provided with a fixed frame; the device further comprises a transmission downward moving mechanism, a sampling mechanism and a detection mechanism, the transmission downward moving mechanism comprises a movable sliding block, a plurality of movable sliding barrels and a rotating screw rod, and the movable sliding barrels are installed on the periphery of the bottom end of an inner cavity of the working frame. In the sampling process, all positions of a sample body are detected through a detection instrument, the comprehensiveness in the sample body detection process is improved, the sample body detection efficiency and accuracy are improved, when the sample body is detected, the sample body can be limited and fixed, the integrity of the sample body in the sampling process is improved, and the detection accuracy of the sample body is improved. The problems that in the sampling detection process, only a part of a sample body can be detected preliminarily, detection sufficiency is prone to occurring, only a part of the sample body can be detected in the detection process, and obtained data are not comprehensive enough are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection and sampling, and particularly to an undisturbed soil ripening detection and sampling device and a detection method for sloping farmland. Background Technique

[0002] At present, the ripening of undisturbed soil in sloping farmland is a process aimed at improving soil fertility and soil structure. Especially in an environment like sloping land where soil erosion is easy, ripening the soil is particularly important. The detection of undisturbed soil ripening in sloping farmland is a process of evaluating the quality, fertility, and structural improvement of the soil in sloping farmland after ripening treatment. The Chinese patent with the application number CN202410437618.8 discloses "a layered collection and sampling device for detecting undisturbed soil in sloping farmland; including a frame, on which a drilling and advancing mechanism for drilling and moving into the soil layer is assembled; the drilling and advancing mechanism includes a stroke frame vertically slidably installed on the frame, and a plurality of drill barrel assemblies are vertically rotatably installed on the stroke frame, and a rotation driving assembly for driving the plurality of drill barrel assemblies to rotate synchronously is assembled on the stroke frame; the device provided by the present invention can obtain multiple samples during a single sampling process, which can not only compare samples to reduce the influence of random sampling, but also provide multiple sample backups; in addition, the drill barrel assembly adopts a double-layer sleeve combination of an inner drill barrel and an outer drill barrel and a separate quick-release design. The inner drill barrel adopts a split structure design, and multiple groups of windows are arranged inside and outside, which can adjust the sampling pressure, realize rapid layered sampling and rapid complete sampling, and ensure the sampling quality and integrity of the samples."

[0003] The existing technology only solves the following obvious drawbacks of the existing soil sampling equipment: 1) The sampler with a single drill barrel structure can only complete single-sample sampling at a time. When the quality of the sampled sample is poor or it cannot be used as a test sample due to damage, it is necessary to repeat sampling many times, which is rather inconvenient;

[0004] When sampling deeper soil layers, as the drilling progresses, the pressure inside the drill barrel will gradually increase. On the one hand, it may damage the structure of the drill barrel itself. On the other hand, the sampled sample will be squeezed and damaged. Especially when it is necessary to obtain information on the soil layer distribution state, it will affect the integrity and accuracy of the sampled sample. Most of the existing general samplers do not have a pressure relief structure, and the pressure relief state of the sampler with a pressure relief structure is generally not adjustable and cannot perform adaptive pressure relief according to the state of the soil to be detected;

[0005] The drill barrels of some samplers are mostly complete cylindrical structures, or there are notches on the drill barrels, but basically the sampled sample is taken out of the barrel by pushing from one end of the drill barrel. When withdrawing, careful operation is required. If the operation is improper, it is easy to damage the integrity of the sample and cause sampling failure. Especially when the sample fits tightly in the drill barrel, the difficulty of withdrawal will increase;

[0006] However, during the use process, it is impossible to detect the density of the sampled soil while sampling. Moreover, even when detecting the density of the treated soil, it is impossible to adjust the power of the power end according to the soil density, and it is also impossible to detect the humidity at multiple positions of the sample. If the sample is carried to the laboratory for detection after sampling, it will cause the humidity of the sample to change, resulting in errors in the final detection results. In addition, when the density of the soil decreases, the state of the sample will be relatively loose, resulting in the situation where sampling cannot be successfully completed in the end. Summary of the Invention

[0007] The purpose of the present invention is to provide a device and a detection method for sampling and ripening detection of undisturbed soil on sloping cultivated land, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A device for sampling and ripening detection of undisturbed soil on sloping cultivated land, including a working frame, and a fixed frame is installed at the top end of the working frame; it also includes a transmission and downward movement mechanism, a sampling mechanism, and a detection mechanism;

[0009] The transmission and downward movement mechanism includes a moving slider, a moving sliding cylinder, and a rotating screw. A number of moving sliding cylinders are installed around the bottom end inner cavity of the working frame, and the inner cavities of the moving sliding cylinders are all installed with rotating screws through bearings, and moving sliders are installed at the upper ends of the rotating screws;

[0010] The sampling mechanism includes a sampling cylinder and a material guiding strip. Sampling cylinders are arranged on the four sides of the inner cavity of the working frame on one side of the moving sliding cylinders, and a number of material guiding strips are equidistantly installed around the inner cavity of the sampling cylinder;

[0011] The detection mechanism includes a fixed block, a fixed frame, and a limiting block. Limiting blocks are movably installed on one side of the bottom end of the sampling cylinder close to the moving sliding cylinder, fixed blocks are installed at the ends of the moving sliders away from the moving sliding cylinders, and fixed frames are installed at the top ends of the fixed blocks.

[0012] Preferably, the transmission and downward movement mechanism further includes a single-phase motor, a fixed electromagnetic block, a transmission gear, a rotating gear, a movable mounting rod, a positioning touch switch, a connecting magnetic plate, a movable notch, and a movable spring. Docking through-holes are formed at the tops of the moving sliding cylinders. Movable notches are formed at the tops of the rotating screws. The upper ends of the inner cavities of the movable notches are slidably mounted with movable mounting rods. The movable mounting rods are of an inverted T-shaped structure. The bottoms of the movable mounting rods are all mounted with movable springs in a stretched state. The bottoms of the movable springs are connected to the bottoms of the inner cavities of the movable notches. The bottoms of the movable mounting rods and the top views of the movable notches are both of a rectangular structure. Transmission gears are mounted at the tops of the movable mounting rods. Connecting magnetic plates are mounted at the tops of the transmission gears. A plurality of positioning touch switches are evenly mounted at one side of the inner cavity of the moving sliding cylinder away from the sampling cylinder. A control panel is mounted on the front side of the fixed frame. A single-phase motor is mounted on the top of the working frame through a mounting seat. A rotating rod is mounted on the output shaft at the bottom of the single-phase motor. The bottom end of the rotating rod passes through the top of the working frame and is mounted with a rotating gear. A rotating hole is formed in the top of the working frame. The single-phase motor, the fixed electromagnetic block, and the positioning touch switch are all electrically connected to the control panel. Fixed electromagnetic blocks are mounted around the top of the inner cavity of the working frame directly above the transmission gears. Material taking through-holes are formed around the bottom of the working frame directly below the sampling cylinder.

[0013] Preferably, the sampling mechanism further includes a limiting inclined groove, a moisture absorption layer, a connecting guide block, a pressing ejector rod, a movable through-hole, a pushing sleeve, a mounting ring strip, a mounting sliding groove, a mounting sliding rod, a guiding coil, a pressing spring, a pressing filter plate, a liquid level touch switch, a moving sliding groove, a docking slider, an induction start switch, a fixed spring, a movable top block, a detection notch, and a movable rod. A plurality of limiting inclined grooves are equidistantly formed on one side of the material taking guide strip away from the sampling cylinder. The bottoms of the inner cavities of the limiting inclined grooves are all of an arc-shaped structure. Movable through-holes are formed in the middle of the fixed blocks. Mounting sliding grooves are formed at the bottoms of the inner cavities of the movable through-holes. Pressing springs are mounted in the inner cavities of the mounting sliding grooves. A mounting ring strip is movably mounted in the middle of the inner cavity of the movable through-hole. Mounting sliding rods are mounted at the relative positions of the bottom of the mounting ring strip around the inner cavities of the mounting sliding grooves. The bottom ends of the mounting sliding rods are all slidably connected to the bottoms of the inner cavities of the mounting sliding grooves. Connecting guide blocks are mounted on one side of the bottom ends of the mounting sliding rods close to the mounting sliding grooves. Guiding coils are mounted on one side of the inner cavities of the mounting sliding grooves away from the mounting sliding rods. The connecting guide blocks are connected to one side of the bottom ends of the guiding coils. The connecting guide blocks and the guiding coils are electrically connected to the control panel. A pushing sleeve is mounted at the top of the mounting ring strip. The pushing sleeves are all made of silica gel material. A plurality of air holes are equidistantly formed around the pushing sleeves. The control panel is equipped with a light alarm.

[0014] Preferably, connection guide blocks are installed on both sides of the bottom end of the inner cavity of the limiting inclined groove. Moisture absorption layers are arranged at the upper ends of the inner cavities of the limiting inclined grooves. Detection notches are formed at the tops of the limiting inclined grooves. On one side of the top end of the inner cavity of each detection notch, a movable top block is slidably installed. On one side of each movable top block, a movable rod is installed. The bottom ends of the movable rods are connected to the top ends of the moisture absorption layers. Fixed springs are installed at the bottom ends of the movable top blocks. On the side of each movable top block away from the movable rod, a pulley is installed. On the side of the inner cavity of each detection notch away from the movable rod, an induction start switch is installed. The connection guide blocks and the induction start switches are electrically connected to the control panel. The tops of the sampling cylinders are all of a hollow structure.

[0015] Preferably, movable sliding holes are formed on one side of the inner cavities of the fixed blocks and the sampling cylinders close to the moving sliding cylinders, and extrusion top rods are movably installed in the inner cavities of the movable sliding holes. The limit blocks are all triangular in structure. Hinges are installed between the upper ends of one side of each limit block and the bottom end of the sampling cylinder, and a sealing sleeve is installed outside the hinges. Receiving notches are formed on the sides of the limit blocks away from the moving sliding cylinders. One side of the inner cavity of each receiving notch is of an inclined surface structure. Liquid level touch switches are installed at the bottom ends of one side of the inner cavity of each receiving notch. The liquid level touch switches are electrically connected to the control panel. Moving sliding grooves are formed at one side of the top ends of the limit blocks. Docking sliders are slidably installed on the sides of the moving sliding grooves away from the moving sliding cylinders. The bottom ends of the extrusion top rods pass through the movable sliding holes and are connected to the top ends of the docking sliders through hinges.

[0016] Preferably, the detection mechanism further includes an electric push rod, a material taking ring plate, an extrusion top ball, a movable top rod, a moving inclined block, an installation through groove, a moving long groove, an installation spring, an extrusion rod, a detection head, a sealing rubber ring, a fixed cross bar and a reset spring rod. An electric push rod is installed in the middle of the top end of the fixed frame. A fixed cross bar is installed at the bottom end of the electric push rod. The top end of the extrusion top rod is connected to one side of the bottom end of the fixed cross bar. Moving long grooves are formed on one side of the inner cavities of the sampling cylinders away from the moving sliding cylinders. Movable top rods are slidably installed on one side of the inner cavities of the moving long grooves. The top ends of the movable top rods are connected to the other side of the bottom end of the fixed cross bar. Movable holes are formed in the fixed blocks directly above the moving long grooves. Two reset spring rods are installed at the bottom end of the fixed cross bar. The bottom ends of the reset spring rods are connected to the top ends of the fixed blocks. The electric push rod is electrically connected to the control panel.

[0017] Preferably, a number of installation through slots are equidistantly arranged on one side of the inner cavity of the moving long slot away from the movable ejector rod. An activity port is arranged in the inner cavity of the installation through slot at the position of the material taking guide bar. Sealing rubber rings are installed on one side of the inner cavity of the activity port away from the installation through slot. Round holes are formed in the middle of the sealing rubber rings. Moving inclined blocks are movably installed on one side of the inner cavity of the installation through slot. Installation springs are installed at the upper and lower ends of the side of the moving inclined block close to the installation through slot. Extrusion rods are installed in the middle of the side of the moving inclined block close to the installation through slot. Detection heads are installed at the ends of the extrusion rods away from the moving inclined blocks. Reinforcement layers are installed outside the detection heads. A detection instrument is installed at the bottom end of the inner cavity of the working frame. The detection heads are electrically connected to the detection instrument. The detection instrument is electrically connected to the control panel. An operating rod is installed at the top end of the working frame. A stable ring plate is installed at the bottom end around the outside of the working frame. A number of extrusion balls are installed on the side of the movable ejector rod close to the moving inclined block. A material taking ring plate is installed at the bottom end of the sampling cylinder. Both the material taking ring plate and the limit stop block are made of alloy material. One side of the outside of both the material taking ring plate and the limit stop block is of an inclined structure. Notches are formed at the relative positions of the material taking ring plate and the limit stop block.

[0018] A detection method for a detection and sampling device for the ripening of undisturbed soil on sloping farmland includes the following steps:

[0019] Step 1: When sampling, move the working frame to the position where sampling is required, and then start the single-phase motor to drive the rotating gear to rotate through the rotating rod. When single-point or multi-point simultaneous sampling is required, the corresponding fixed electromagnet will be triggered, causing the corresponding fixed electromagnet to lose magnetism, so that the connecting magnetic plate and the transmission gear at the corresponding position lose restraint. The movable mounting rod is driven to move downward by the stretched movable spring, and the transmission gear is driven to move downward, so that the transmission gear meshes with the rotating gear, driving the transmission gear to rotate, driving the rotating screw to rotate in the inner cavity of the moving sliding cylinder, and driving the moving slider to move inside the moving sliding cylinder. When the moving slider moves inside the moving sliding cylinder and contacts the corresponding positioning touch switch, an alarm will be sounded through the alarm outside the control panel to tell the staff the depth during material taking.

[0020] Step 2: Drive the fixed block to move downward by moving the slider, which drives the sampling cylinder to move downward. When the sampling cylinder moves downward, it passes through the material taking through hole and contacts the soil. When the sampling cylinder continues to move downward, it will contact and squeeze the soil, moving the soil into the sampling cylinder. When the sampling cylinder moves downward, it will squeeze the material guiding bar into the soil, so as to squeeze and limit the soil, and the limiting inclined groove squeezes and fixes the sampled soil. During the sampling process, the air at the upper end of the sampling cylinder is conveyed into the movable through hole. When the air flow flows in the inner cavity of the movable through hole, the air flow contacts the pushing sleeve, pushing the pushing sleeve to move upward, which drives the installation ring bar to move upward and drives the installation slide bar to slide in the installation chute, increasing the stability when the installation ring bar and the pushing sleeve move. When the installation slide bar moves, it squeezes the compression spring. Later, the compressed compression spring drives the installation slide bar, the installation ring bar and the pushing sleeve to reset. When the installation slide bar moves, it drives the communication guide block to move. When the communication guide block slides upward outside the coil, the resistance of the single-phase motor is reduced, the efficiency of the single-phase motor is improved, and the alarm lamp arranged outside the control panel is triggered to give an alarm. When the density of the sampled soil is greater, the air pressure formed at the upper end of the sampling cylinder during sampling will be greater, so the driving force generated on the pushing sleeve will be greater, and the resistance of the single-phase motor during operation will be smaller. When the water content of the soil during sampling is too high, the liquid will flow into the limiting inclined groove and accumulate at the bottom end inside the limiting inclined groove, causing the two connecting guide blocks to be connected and triggering the alarm outside the control panel. After the material taking is completed, start the electric push rod to drive the fixed cross bar to move downward, drive the extrusion ejector rod to move downward, and drive one side of the limiting block to move downward with the hinge as the axis. When moving, drive the docking slider to slide in the moving chute, so that the limiting block contacts and squeezes the bottom end of the sampling body, which can not only cut off the bottom end of the sampled body, but also limit and fix the sampled body, increasing the integrity of the sampled body during sampling. When the limiting block contacts and squeezes the bottom end of the sampled body, when there is too much liquid in the sampled body, the liquid in the sampled body is squeezed into the receiving notch through the extrusion filter plate, and the liquid gathers at the bottom end of the inner cavity of the receiving notch, and triggers the liquid level touch switch to start the alarm arranged outside the control panel to give an alarm;

[0021] Step three: when sampling is completed and detection is performed, the electric push rod is started to drive the fixed cross bar to move downward, and the reset spring rod is squeezed. Later, the fixed cross bar is driven to move upward and reset through the reset spring rod after squeezing, and the extrusion push rod and the movable push rod are driven to move upward and reset, and the movable push rod is driven downward through the fixed cross bar, and the extrusion top ball is driven downward, so that the extrusion top ball contacts the inclined surface of the moving inclined block, and pushes the moving inclined block to move to one side of the installation slot, and squeezes the installation spring. Later, the moving inclined block and the extrusion rod are reset by the installation spring after squeezing. When the moving inclined block moves, the extrusion rod is driven to slide inside the active hole, and the detection head is driven to move inside the active hole, so that the detection head and the sealing rubber ring are stretched open, so that the extrusion rod and the detection head are inserted into the sample body, and the detection instrument is started to detect the sample body. When the extrusion rod and the detection head are inserted into the sample body, the volume of the sample body expands, thereby increasing the fit between the sample body and the inner cavity of the sampling tube.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the process of sampling and testing, the present invention can not only sample multiple points at the same time, but also sample separately at different points, thereby increasing the applicability of the sampling process. In addition, the present invention can also perform testing while sampling. When sampling, the density of the soil is first tested. If it is detected that the soil density is high, not only can an alarm be issued to inform the staff, but the power of the sampling power end can also be adjusted to ensure the stability during sampling. When sampling, the sample can also be limited and fixed to ensure the integrity of the sample and avoid the sample from slipping during sampling. At the same time, the sample humidity at multiple positions of the sample can be tested, and the test results can be fed back to the control panel to inform the staff of the specific situation of the sample. By obtaining the sample data at the first time during sampling, the accuracy of the later sample detection is improved, thereby avoiding the situation that the real data of the sample cannot be collected at the first time during the sampling process. If the sample is moved to the test area again, the final result will be erroneous.

[0024] 2. The present invention also detects various positions of the sample through the detection instrument during the sampling process, thereby increasing the comprehensiveness of the sample detection process and improving the efficiency and accuracy of the sample detection. When the sample is detected, the sample can also be limited and fixed to increase the integrity of the sample during the sampling process, avoiding the situation in which only a part of the sample can be initially detected during the sampling and detection process, which easily leads to insufficient detection, resulting in only local detection during detection, and the data obtained is not comprehensive enough, and when the sample is moved up, the combined effect of pressure and gravity causes the sample to slide down, resulting in unsuccessful structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1Schematic diagram of the overall structure provided by the embodiments of the present invention;

[0026] Figure 2 Structural diagram of the overall horizontal section provided by the embodiments of the present invention;

[0027] Figure 3 Structural diagram of the upper end of one side of the sampling cylinder in a sectional view provided by the embodiments of the present invention;

[0028] Figure 4 Structural diagram of the horizontal section of the fixing block provided by the embodiments of the present invention;

[0029] Figure 5 Structural diagram of the horizontal section of the limiting stop block provided by the embodiments of the present invention;

[0030] Figure 6 Structural diagram of the top of the rotating screw rod in a sectional view provided by the embodiments of the present invention;

[0031] Figure 7 Provided by the embodiments of the present invention Figure 3 Enlarged structural diagram at position A in

[0032] In the figure: 1, working frame; 2, fixing frame; 3, transmission and downward movement mechanism; 301, single-phase motor; 302, fixed electromagnetic block; 303, transmission gear; 304, rotating gear; 305, movable mounting rod; 306, moving slider; 307, moving sliding cylinder; 308, rotating screw rod; 309, positioning touch switch; 310, connecting magnetic plate; 311, movable notch; 312, movable spring; 4, sampling mechanism; 401, sampling cylinder; 402, material taking guide bar; 403, limiting inclined groove; 404, moisture absorption layer; 405, connecting guide block; 406, extrusion ejector rod; 407, movable through hole; 408, pushing sleeve; 409, mounting ring bar; 410, mounting chute; 411, mounting slide bar; 412, induction coil; 413, extrusion spring; 414, receiving notch; 415, extrusion filter plate; 416, liquid level touch switch; 417, moving chute; 418, docking slider; 419, induction start switch; 420, fixed spring; 421, movable top block; 422, detection notch; 423, movable rod; 5, detection mechanism; 501, fixing block; 502, fixing frame; 503, electric push rod; 504, limiting stop block; 505, material taking ring plate; 506, extrusion top ball; 507, movable ejector rod; 508, moving inclined block; 509, mounting through hole; 510, moving long groove; 511, mounting spring; 512, extrusion rod; 513, detection head; 514, sealing rubber ring; 515, fixed cross bar; 516, reset spring rod; 6, operating rod; 7, stabilizing ring plate; 8, detection instrument; 9, material taking through hole. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1

[0035] Please refer to Figures 1-7 , the present invention provides a technical solution: a device for detecting and sampling the ripening of the original soil on sloping farmland, including a working frame 1, and a fixing frame 2 is installed at the top of the working frame 1; it also includes a transmission and downward movement mechanism 3, a sampling mechanism 4 and a detection mechanism 5;

[0036] The transmission and downward movement mechanism 3 includes a moving slider 306, a moving sliding cylinder 307 and a rotating screw 308. A plurality of moving sliding cylinders 307 are installed around the bottom end of the inner cavity of the working frame 1. The inner cavities of the moving sliding cylinders 307 are all installed with rotating screws 308 through bearings, and moving sliders 306 are installed at the upper ends of the rotating screws 308;

[0037] The sampling mechanism 4 includes a sampling cylinder 401 and a material taking guide bar 402. Sampling cylinders 401 are arranged on the four sides of the inner cavity of the working frame 1 on one side of the moving sliding cylinder 307, and a plurality of material taking guide bars 402 are equidistantly installed around the inner cavity of the sampling cylinder 401;

[0038] The detection mechanism 5 includes a fixing block 501, a fixing frame 502 and a limiting block 504. Limiting blocks 504 are movably installed on one side of the bottom end of the sampling cylinder 401 close to the moving sliding cylinder 307. Fixing blocks 501 are installed at the ends of the moving sliders 306 far from the moving sliding cylinder 307, and fixing frames 502 are installed at the tops of the fixing blocks 501.

[0039] The transmission and downward movement mechanism 3 further includes a single-phase motor 301, a fixed electromagnetic block 302, a transmission gear 303, a rotating gear 304, a movable mounting rod 305, a positioning touch switch 309, a connecting magnetic plate 310, a movable notch 311 and a movable spring 312. Docking openings are provided at the top ends of the moving sliding cylinders 307, and movable notches 311 are provided at the top ends of the rotating screws 308. A movable mounting rod 305 is slidably mounted at the upper end of the inner cavity of the movable notch 311. The movable mounting rod 305 has an inverted T-shaped structure. Movable springs 312 in a stretched state are mounted at the bottom ends of the movable mounting rods 305. The bottom ends of the movable springs 312 are connected to the bottom ends of the inner cavities of the movable notches 311. The bottom ends of the movable mounting rods 305 and the movable notches 311 are rectangular in top view. Transmission gears 303 are mounted at the top ends of the movable mounting rods 305, and connecting magnetic plates 310 are mounted at the top ends of the transmission gears 303. A number of positioning touch switches 309 are equidistantly mounted on the side of the inner cavity of the moving sliding cylinder 307 away from the sampling cylinder 401. A control panel is mounted on the front side of the fixed frame 2. A single-phase motor 301 is mounted on the top end of the working frame 1 through a mounting seat. A rotating rod is mounted on the output shaft at the bottom end of the single-phase motor 301, and the bottom end of the rotating rod passes through the top end of the working frame 1 and is mounted with a rotating gear 304. A rotating hole is provided at the top end of the working frame 1. The single-phase motor 301, the fixed electromagnetic block 302 and the positioning touch switch 309 are all electrically connected to the control panel. Fixed electromagnetic blocks 302 are mounted around the top end of the inner cavity of the working frame 1 directly above the transmission gears 303. Material taking openings 9 are provided around the bottom end of the working frame 1 directly below the sampling cylinder 401;

[0040] The specific implementation method is as follows: When sampling, move the working frame 1 to the position where sampling is required, and then start the single-phase motor 301 to drive the rotating gear 304 to rotate through the rotating rod. When single-point or multi-point simultaneous sampling is required, the fixed electromagnetic block 302 at the corresponding position will be triggered, so that the fixed electromagnetic block 302 at the corresponding position loses magnetism, so that the connecting magnetic plate 310 and the transmission gear 303 at the corresponding position lose restraint. The movable mounting rod 305 is driven to move downward by the movable spring 312 in a stretched state, and the transmission gear 303 is driven to move downward, so that the transmission gear 303 meshes with the rotating gear 304, driving the transmission gear 303 to rotate, driving the rotating screw 308 to rotate in the inner cavity of the moving sliding cylinder 307, and driving the moving slider 306 to move inside the moving sliding cylinder 307. When the moving slider 306 moves inside the moving sliding cylinder 307 and contacts the positioning touch switch 309 at the corresponding position, an alarm will be triggered through the alarm outside the control panel to tell the staff the depth during material taking.

[0041] The sampling mechanism 4 further includes a limit inclined groove 403, a moisture absorption layer 404, a connection guide block 405, an extrusion ejector rod 406, a movable through port 407, a push sleeve 408, a mounting ring strip 409, a mounting chute 410, a mounting slide bar 411, a guide coil 412, an extrusion spring 413, an extrusion filter plate 415, a liquid level touch switch 416, a moving chute 417, a docking slider 418, an induction start switch 419, a fixed spring 420, a movable top block 421, a detection notch 422 and a movable rod 423. A plurality of limit inclined grooves 403 are equidistantly arranged on one side of the material taking guide bar 402 away from the sampling cylinder 401. The bottom ends of the inner cavities of the limit inclined grooves 403 are all of an arc-shaped structure. Movable through ports 407 are respectively arranged in the middle parts of the fixed blocks 501. Mounting chutes 410 are respectively arranged at the bottom ends around the inner cavities of the movable through ports 407. Extrusion springs 413 are respectively installed in the inner cavities of the mounting chutes 410. A mounting ring strip 409 is movably installed in the middle of the inner cavity of the movable through port 407. Mounting slide bars 411 are respectively installed at the relative positions of the bottom ends around the mounting ring strip 409 in the mounting chutes 410. The bottom ends of the mounting slide bars 411 are all slidably connected with the bottom ends of the inner cavities of the mounting chutes 410. Connection guide blocks are respectively installed on one side of the bottom ends of the mounting slide bars 411 close to the mounting chutes 410. Guide coils 412 are respectively installed on one side of the inner cavities of the mounting chutes 410 away from the mounting slide bars 411. And the connection guide blocks are connected with one side of the bottom ends of the guide coils 412. And the connection guide blocks and the guide coils 412 are electrically connected with the control panel. A push sleeve 408 is installed at the top of the mounting ring strip 409. The push sleeves 408 are all made of silica gel material. A plurality of air holes are equidistantly arranged around the push sleeves 408. And the control panel is provided with an audible and visual alarm;

[0042] Connection guide blocks 405 are respectively installed on both sides of the bottom ends of the inner cavities of the limit inclined grooves 403. Moisture absorption layers 404 are respectively arranged at the upper ends of the inner cavities of the limit inclined grooves 403. Detection notches 422 are respectively arranged at the tops of the limit inclined grooves 403. Movable top blocks 421 are respectively slidably installed on one side of the top ends of the inner cavities of the detection notches 422. Movable rods 423 are respectively installed on one side of the movable top blocks 421. The bottom ends of the movable rods 423 are respectively connected with the top ends of the moisture absorption layers 404. Fixed springs 420 are respectively installed at the bottom ends of the movable top blocks 421. Pulleys are respectively installed on one side of the movable top blocks 421 away from the movable rods 423. Induction start switches 419 are respectively installed on one side of the inner cavities of the detection notches 422 away from the movable rods 423. The connection guide blocks 405 and the induction start switches 419 are electrically connected with the control panel. The tops of the sampling cylinders 401 are all of a hollow structure;

[0043] On one side of the inner cavity of the fixed block 501 and the sampling cylinder 401 close to the moving sliding cylinder 307, movable sliding holes are provided, and extrusion ejector rods 406 are movably installed in the inner cavities of the movable sliding holes. The limit stoppers 504 are all triangular structures. Hinges are installed between the upper ends of one side of the limit stoppers 504 and the bottom end of the sampling cylinder 401, and a sealing sleeve is installed outside the hinges. Receiving notches 414 are provided on the sides of the limit stoppers 504 away from the moving sliding cylinder 307. One side of the inner cavity of the receiving notch 414 is of an inclined surface structure, and liquid level touch switches 416 are installed at the bottom ends of one side of the inner cavity of the receiving notch 414. The liquid level touch switches 416 are electrically connected to the control panel. Moving chutes 417 are provided at one side of the top ends of the limit stoppers 504. Docking sliders 418 are slidably installed on the sides of the moving chutes 417 away from the moving sliding cylinder 307. The bottom ends of the extrusion ejector rods 406 pass through the movable sliding holes and are connected to the top ends of the docking sliders 418 through hinges;

[0044] The specific implementation method is as follows: By moving the slider 306 to drive the fixed block 501 to move downward, the sampling cylinder 401 is driven to move downward. When the sampling cylinder 401 moves downward, it passes through the material taking through hole 9 and contacts the soil. When the sampling cylinder 401 continues to move downward, it will contact and squeeze the soil, moving the soil into the sampling cylinder 401. When the sampling cylinder 401 moves downward, the material taking guide bar 402 will be squeezed into the soil, so as to squeeze the soil and the limiting inclined groove 403 squeezes and fixes the sampled soil. During the sampling process, the air at the upper end of the sampling cylinder 401 is conveyed into the movable through hole 407. When the air flow flows in the inner cavity of the movable through hole 407, the air flow contacts the pushing sleeve 408, pushing the pushing sleeve 408 to move upward, driving the mounting ring bar 409 to move upward, and driving the mounting slide bar 411 to slide in the mounting chute 410, increasing the stability when the mounting ring bar 409 and the pushing sleeve 408 move. When the mounting slide bar 411 moves, it squeezes the compression spring 413. Later, the compressed compression spring 413 drives the mounting slide bar 411, the mounting ring bar 409 and the pushing sleeve 408 to reset. When the mounting slide bar 411 moves, it drives the connecting guide block to move. When the connecting guide block slides upward outside the coil 412, the resistance of the single-phase motor 301 is reduced, improving the efficiency of the single-phase motor 301, and triggering the alarm light arranged outside the control panel to give an alarm. When the density of the sampled soil is greater, the air pressure formed at the upper end of the sampling cylinder 401 during sampling will be greater, so the driving force generated on the pushing sleeve 408 will be greater, and the resistance of the single-phase motor 301 during operation will be smaller. When the water content of the soil during sampling is too high, the liquid will flow into the limiting inclined groove 403 and gather at the bottom end inside the limiting inclined groove 403, causing the two connecting guide blocks 405 to be connected, and triggering the alarm arranged outside the control panel to give an alarm. After the material taking is completed, the electric push rod 503 is started to drive the fixed cross bar 515 to move downward, driving the extrusion top rod 406 to move downward, and driving the side of the limiting block 504 to move downward with the hinge as the axis. When moving, it drives the docking slider 418 to slide in the moving chute 417, so that the limiting block 504 contacts and squeezes the bottom end of the sampling body, which can not only cut off the bottom end of the sampled body, but also limit and fix the sampled body, increasing the integrity of the sampled body during sampling. When the limiting block 504 contacts and squeezes the bottom end of the sampled body, when the liquid contained in the sampled body is too much, the liquid inside the sampled body is squeezed into the receiving notch 414 through the extrusion filter plate 415, and the liquid gathers at the bottom end inside the receiving notch 414, and triggers the liquid level touch switch 416 to start the alarm arranged outside the control panel to give an alarm. When the humidity of the sampled body during sampling is too high, the generated moisture is absorbed by the moisture absorption layer 404, and the weight of the moisture absorption layer 404 will increase, driving the movable rod 423 and the movable top block 421 to move downward, so that one side of the movable top block 421 contacts the induction start switch 419, triggering the control panel to give an alarm through the alarm arranged inside the control panel.

[0045] The detection mechanism 5 further includes an electric push rod 503, a material taking ring plate 505, an extrusion top ball 506, a movable top rod 507, a moving inclined block 508, an installation through groove 509, a moving long groove 510, an installation spring 511, an extrusion rod 512, a detection head 513, a sealing rubber ring 514, a fixed cross bar 515 and a reset spring rod 516. In the middle of the top end of the fixed frame 502, an electric push rod 503 is installed. At the bottom end of the electric push rod 503, a fixed cross bar 515 is installed. The top end of the extrusion top rod 406 is connected to one side of the bottom end of the fixed cross bar 515. On the side of the inner cavity of the sampling cylinder 401 away from the moving sliding cylinder 307, moving long grooves 510 are respectively opened. On one side of the inner cavity of each moving long groove 510, a movable top rod 507 is slidably installed. The top end of the movable top rod 507 is connected to the other side of the bottom end of the fixed cross bar 515. In the inner cavity of the fixed block 501, above the positions of the moving long grooves 510, moving holes are respectively opened. At the bottom end of the fixed cross bar 515, two reset spring rods 516 are installed. The bottom ends of the reset spring rods 516 are connected to the top end of the fixed block 501. The electric push rod 503 is electrically connected to the control panel;

[0046] On one side of the inner cavity of the moving long groove 510 away from the movable top rod 507, a number of installation through grooves 509 are equidistantly opened. At the position of the material taking guide bar 402 in the inner cavity of the installation through groove 509, a moving opening is opened. And on the side of the inner cavity of the moving opening away from the installation through groove 509, a sealing rubber ring 514 is installed. In the middle of each sealing rubber ring 514, a round hole is opened. On one side of the inner cavity of each installation through groove 509, a moving inclined block 508 is movably installed. On the upper and lower ends of the side of the moving inclined block 508 close to the installation through groove 509, installation springs 511 are installed. In the middle of the side of the moving inclined block 508 close to the installation through groove 509, an extrusion rod 512 is installed. At the end of the extrusion rod 512 away from the moving inclined block 508, a detection head 513 is installed. A reinforcement layer is installed outside each detection head 513. At the bottom end of the inner cavity of the working frame 1, a detection instrument 8 is installed. The detection head 513 is electrically connected to the detection instrument 8. The detection instrument 8 is electrically connected to the control panel. At the top end of the working frame 1, an operating rod 6 is installed. At the bottom end of the outer periphery of the working frame 1, a stabilizing ring plate 7 is installed. On the side of the movable top rod 507 close to the moving inclined block 508, a number of extrusion top balls 506 are installed. At the bottom end of each sampling cylinder 401, a material taking ring plate 505 is installed. The material taking ring plate 505 and the limit stop block 504 are both made of alloy materials. On the outer side of the material taking ring plate 505 and the limit stop block 504, the structure is inclined on one side. At the relative positions of the material taking ring plate 505 and the limit stop block 504, notches are respectively opened;

[0047] The specific implementation method is as follows: when the sampling is completed and the test is performed, the electric push rod 503 is started to drive the fixed cross bar 515 to move downward, and the reset spring rod 516 is squeezed. Later, the reset spring rod 516 after squeezing drives the fixed cross bar 515 to move upward and reset, and drives the extrusion ejector rod 406 and the movable ejector rod 507 to move upward and reset, and drives the movable ejector rod 507 to move downward through the fixed cross bar 515, and drives the extrusion ejector ball 506 to move downward, so that the extrusion ejector ball 506 contacts the inclined surface of the movable inclined block 508, and pushes the movable inclined block 508 to move to the side of the installation slot 509, and the installation spring 511 is pressed. After extrusion, the installed spring 511 after extrusion drives the movable inclined block 508 and the extrusion rod 512 to reset. When the movable inclined block 508 moves, it drives the extrusion rod 512 to slide inside the movable hole, and then drives the detection head 513 to move inside the movable hole, so that the detection head 513 and the sealing rubber ring 514 are stretched open, so that the extrusion rod 512 and the detection head 513 are inserted into the sample body, and the detection instrument 8 is started to detect the sample body. When the extrusion rod 512 and the detection head 513 are inserted into the sample body, the volume of the sample body is expanded, thereby increasing the fit between the sample body and the inner cavity of the sampling tube 401.

[0048] Embodiment 2

[0049] A detection method for a sloping cultivated land original soil maturation detection sampling device comprises the following steps:

[0050] Step 1: When sampling, move the working frame 1 to the position where sampling is required, and then start the single-phase motor 301 to drive the rotating gear 304 to rotate through the rotating rod. When single-point or multi-point sampling is required, the fixed electromagnetic block 302 at the corresponding position will be triggered, so that the fixed electromagnetic block 302 at the corresponding position loses its magnetism, and the connecting magnetic plate 310 and the transmission gear 303 at the corresponding position lose their restraining force, and the movable installation rod 305 is driven to move downward through the movable spring 312 in a stretched state, and the transmission gear 303 is driven to move downward, so that the transmission gear 303 is meshed with the rotating gear 304, and the transmission gear 303 is driven to rotate, which drives the rotating screw 308 to rotate in the inner cavity of the moving slide 307, and drives the moving slider 306 to move inside the moving slide 307. When the moving slider 306 moves inside the moving slide 307, it contacts the positioning touch switch 309 at the corresponding position, and an alarm is sounded through the alarm outside the control panel to tell the staff the depth of the material when taking the material;

[0051] Step 2: Move the slider 306 to drive the fixed block 501 to move downward, which drives the sampling cylinder 401 to move downward. When the sampling cylinder 401 moves downward, it passes through the material taking through hole 9 and contacts the soil. When the sampling cylinder 401 continues to move downward, it will contact and squeeze the soil, moving the soil into the sampling cylinder 401. When the sampling cylinder 401 moves downward, the material taking guide bar 402 will be squeezed into the soil, so as to squeeze and limit the soil, and the limiting inclined groove 403 squeezes and fixes the sampled soil. During the sampling process, the air at the upper end of the sampling cylinder 401 is transported into the movable through hole 407. When the air flow flows in the inner cavity of the movable through hole 407, the air flow contacts the push sleeve 408, pushing the push sleeve 408 to move upward, which drives the mounting ring bar 409 to move upward and drives the mounting slide bar 411 to slide in the mounting chute 410, increasing the stability when the mounting ring bar 409 and the push sleeve 408 move. When the mounting slide bar 411 moves, it squeezes the compression spring 413. Later, the compressed compression spring 413 drives the mounting slide bar 411, the mounting ring bar 409 and the push sleeve 408 to reset. When the mounting slide bar 411 moves, it drives the communication guide block to move. When the communication guide block slides upward outside the coil 412, the resistance of the single-phase motor 301 is reduced, improving the efficiency of the single-phase motor 301, and triggering the alarm light arranged outside the control panel to give an alarm. When the density of the sampled soil is greater, the air pressure formed at the upper end of the sampling cylinder 401 during sampling will be greater, so the driving force generated on the push sleeve 408 will be greater, and the resistance of the single-phase motor 301 during operation will be smaller. When the water content of the soil during sampling is too high, the liquid will flow into the limiting inclined groove 403 and accumulate at the bottom end of the limiting inclined groove 403, making the two connecting guide blocks 405 communicate with each other and triggering the alarm arranged outside the control panel to give an alarm. After the material taking is completed, start the electric push rod 503 to drive the fixed cross bar 515 to move downward, drive the extrusion ejector rod 406 to move downward, and drive one side of the limiting block 504 to move downward with the hinge as the axis. When moving, it drives the docking slider 418 to slide in the moving chute 417, so that the limiting block 504 contacts and squeezes the bottom end of the sampling body, which can not only cut off the bottom end of the sampled body, but also limit and fix the sampled body, increasing the integrity of the sampled body during sampling. When the limiting block 504 contacts and squeezes the bottom end of the sampled body, when there is too much liquid in the sampled body, the liquid in the sampled body is squeezed into the receiving notch 414 through the extrusion filter plate 415, and the liquid gathers at the bottom end of the inner cavity of the receiving notch 414, triggering the liquid level touch switch 416 to start the alarm arranged outside the control panel to give an alarm;

[0052] Step 3: When the sampling is completed and the test is performed, the electric push rod 503 is started to drive the fixed cross bar 515 to move downward, and the reset spring rod 516 is squeezed. Later, the fixed cross bar 515 is driven to move upward and reset through the reset spring rod 516 after squeezing, and the extrusion ejector rod 406 and the movable ejector rod 507 are driven to move upward and reset, and the movable ejector rod 507 is driven to move downward through the fixed cross bar 515, and the extrusion ejector ball 506 is driven to move downward, so that the extrusion ejector ball 506 contacts the inclined surface of the movable inclined block 508, and the movable inclined block 508 is pushed to move to the side of the installation slot 509, and the installation spring 511 is squeezed. , and later on, the installation spring 511 after extrusion drives the movable inclined block 508 and the extrusion rod 512 to reset. When the movable inclined block 508 moves, it drives the extrusion rod 512 to slide inside the movable hole, and then drives the detection head 513 to move inside the movable hole, so that the detection head 513 and the sealing rubber ring 514 are stretched open, so that the extrusion rod 512 and the detection head 513 are inserted into the sample body, and the detection instrument 8 is started to detect the sample body. When the extrusion rod 512 and the detection head 513 are inserted into the sample body, the volume of the sample body expands, thereby increasing the fit between the sample body and the inner cavity of the sampling tube 401.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for sampling undisturbed soil maturation detection on sloping cultivated land, comprising a working frame (1), a fixing frame (2) being installed on the top of the working frame (1), characterized in that: It also includes a transmission downward movement mechanism (3), a sampling mechanism (4) and a detection mechanism (5); The transmission downward movement mechanism (3) comprises a movable slider (306), a movable slide cylinder (307) and a rotating screw (308); a plurality of movable slide cylinders (307) are installed around the bottom end of the inner cavity of the working frame (1); the inner cavity of each movable slide cylinder (307) is equipped with a rotating screw (308) via a bearing; and the upper end of each rotating screw (308) is equipped with a movable slider (306); The sampling mechanism (4) comprises a sampling cylinder (401) and a material taking guide strip (402); the sampling cylinder (401) is arranged on one side of the movable slide cylinder (307) around the inner cavity of the working frame (1); and a plurality of material taking guide strips (402) are equidistantly installed around the inner cavity of the sampling cylinder (401); The detection mechanism (5) comprises a fixed block (501), a fixed frame (502) and a limit stopper (504); a limit stopper (504) is movably installed on one side of the bottom end of the sampling tube (401) close to the movable slide cylinder (307); a fixed block (501) is installed on one end of the movable slide cylinder (306) away from the movable slide cylinder (307); and a fixed frame (502) is installed on the top end of the fixed block (501).

2. The device for detecting and sampling undisturbed soil maturation of sloping cultivated land according to claim 1 is characterized in that: The transmission downward movement mechanism (3) further comprises a single-phase motor (301), a fixed electromagnetic block (302), a transmission gear (303), a rotating gear (304), a movable mounting rod (305), a positioning touch switch (309), a connecting magnetic plate (310), a movable notch (311) and a movable spring (312). The top end of the movable slide cylinder (307) is provided with a docking opening, the top end of the rotating screw rod (308) is provided with a movable notch (311), and the movable A movable mounting rod (305) is slidably mounted on the upper end of the inner cavity of the slot (311); the movable mounting rod (305) is in an inverted T-shaped structure; a movable spring (312) in a stretched state is mounted on the bottom end of the movable mounting rod (305); the bottom end of the movable spring (312) is connected to the bottom end of the inner cavity of the movable slot (311); the bottom end of the movable mounting rod (305) and the movable slot (311) are both rectangular structures when viewed from above; and a movable spring (312) is mounted on the top end of the movable mounting rod (305). A transmission gear (303) is provided at the top of each transmission gear (303) with a connecting magnetic plate (310); a plurality of positioning touch switches (309) are equidistantly provided on a side of the inner cavity of the movable slide cylinder (307) away from the sampling cylinder (401); a control panel is provided on the front side of the fixed frame (2); a single-phase motor (301) is provided at the top of the working frame (1) through a mounting seat; a rotating rod is provided at the output shaft at the bottom of the single-phase motor (301); and a rotating gear (304) is provided at the bottom of the rotating rod through the top of the working frame (1); a rotating hole is provided at the top of the working frame (1); the single-phase motor (301), the fixed electromagnetic block (302) and the positioning touch switch (309) are electrically connected to the control panel; fixed electromagnetic blocks (302) are provided around the top of the inner cavity of the working frame (1) and located directly above the transmission gear (303); and material taking openings (9) are provided around the bottom of the working frame (1) and located directly below the sampling cylinder (401).

3. The device for detecting and sampling undisturbed soil maturation of sloping cultivated land according to claim 2, characterized in that: The sampling mechanism (4) further comprises a limiting inclined groove (403), an extrusion push rod (406), a movable opening (407), a pushing sleeve (408), a mounting ring strip (409), a mounting slide groove (410), a mounting slide rod (411), a conducting coil (412), an extrusion spring (413), an extrusion filter plate (415), a liquid level touch switch (416), a movable slide groove (417) and a docking slide block (418). A plurality of limiting inclined grooves (403) are equidistantly provided on a side of the material taking guide strip (402) away from the sampling tube (401). The bottom ends of the inner cavities of the limiting inclined grooves (403) are all in an arc-shaped structure. The middle part of the fixed block (501) is provided with a movable opening (407). The bottom ends of the inner cavities of the movable opening (407) are all provided with mounting slide grooves (410). The inner cavities of the mounting slide grooves (410) are all provided with extrusion springs (413). The movable opening (407) ) is movably installed in the middle of the inner cavity, and installation slide bars (411) are installed around the bottom of the installation ring bar (409) at relative positions to the installation slide groove (410), and the bottom ends of the installation slide bars (411) are slidably connected to the bottom end of the inner cavity of the installation slide groove (410), and a connecting guide block is installed on the side of the bottom end of the installation slide bar (411) close to the installation slide groove (410), and a conductor coil (412) is installed on the side of the inner cavity of the installation slide groove (410) away from the installation slide bar (411), and the connecting guide block is connected to one side of the bottom end of the conductor coil (412), and the connecting guide block and the conductor coil (412) are electrically connected to the control panel, and a push sleeve (408) is installed on the top of the installation ring bar (409), and the push sleeve (408) is made of silicone material, and a plurality of air holes are equidistantly opened around the push sleeve (408), and the control panel is equipped with an audible and visual alarm.

4. The device for detecting and sampling undisturbed soil maturation of sloping cultivated land according to claim 3 is characterized in that: The sampling mechanism further comprises a hygroscopic layer (404), a connecting guide block (405), an induction start switch (419), a fixing spring (420), a movable top block (421), a detection notch (422) and a movable rod (423). The connecting guide blocks (405) are installed on both sides of the bottom end of the inner cavity of the limiting inclined groove (403). The upper end of the inner cavity of the limiting inclined groove (403) is provided with a hygroscopic layer (404). The top of the limiting inclined groove (403) is provided with a detection notch (422). The movable top block (421) is slidably installed on one side of the inner cavity top of the detection notch (422). A movable rod (423) is installed on one side of the movable top block (421), the bottom end of the movable rod (423) is connected to the top of the moisture absorption layer (404), a fixed spring (420) is installed on the bottom end of the movable top block (421), a pulley is installed on the side of the movable top block (421) away from the movable rod (423), an induction start switch (419) is installed on the side of the inner cavity of the detection slot (422) away from the movable rod (423), the connection guide block (405) and the induction start switch (419) are electrically connected to the control panel, and the top of the sampling tube (401) is a hollow structure.

5. The device for detecting and sampling undisturbed soil maturation of sloping cultivated land according to claim 4, characterized in that: The fixed block (501) and the sampling tube (401) are provided with a movable sliding hole on one side of the inner cavity close to the movable slide tube (307), and an extrusion push rod (406) is movably installed in the inner cavity of the movable sliding hole. The limit block (504) is a triangular structure. A hinge is installed between the upper end of one side of the limit block (504) and the bottom end of the sampling tube (401), and a sealing sleeve is installed outside the hinge. The limit block (504) is provided with a receiving notch (414) on the side away from the movable slide tube (307). The receiving notch ( 414) has an inclined surface structure on one side of the inner cavity, and a liquid level touch switch (416) is installed at the bottom end of one side of the inner cavity of the receiving slot (414), and the liquid level touch switch (416) is electrically connected to the control panel. A movable slide groove (417) is opened on one side of the top of the limit stopper (504), and a docking slider (418) is slidably installed on the side of the movable slide groove (417) away from the movable slide cylinder (307), and the bottom end of the extrusion push rod (406) passes through the movable slide hole and is connected to the top of the docking slider (418) through a hinge.

6. The device for detecting and sampling undisturbed soil maturation of sloping cultivated land according to claim 5, characterized in that: The detection mechanism (5) further comprises an electric push rod (503), a movable push rod (507), a movable long slot (510), a fixed cross bar (515) and a reset spring rod (516); the electric push rod (503) is installed at the middle of the top of the fixed frame (502); the fixed cross bar (515) is installed at the bottom of the electric push rod (503); the top of the extrusion push rod (406) is connected to one side of the bottom of the fixed cross bar (515); the inner cavity of the sampling tube (401) is provided with a movable long slot on one side away from the movable slide tube (307); (510), a movable push rod (507) is slidably installed on one side of the inner cavity of the movable long groove (510), and the top of the movable push rod (507) is connected to the other side of the bottom end of the fixed cross bar (515), and a movable hole is opened in the inner cavity of the fixed block (501) just above the movable long groove (510), and two reset spring rods (516) are installed at the bottom end of the fixed cross bar (515), and the bottom end of the reset spring rod (516) is connected to the top end of the fixed block (501), and the electric push rod (503) is electrically connected to the control panel.

7. The device for detecting and sampling undisturbed soil maturation of sloping cultivated land according to claim 6, characterized in that: The detection mechanism further comprises a material taking ring plate (505), an extrusion top ball (506), a movable inclined block (508), a mounting slot (509), a mounting spring (511), an extrusion rod (512), a detection head (513) and a sealing rubber ring (514); a plurality of mounting slots (509) are equidistantly formed on a side of the inner cavity of the movable long slot (510) away from the movable top rod (507); a movable opening is formed in the inner cavity of the mounting slot (509) at a position of the material taking guide strip (402); A sealing rubber ring (514) is installed on one side of the inner cavity of the movable opening away from the installation slot (509), and a round hole is opened in the middle of the sealing rubber ring (514). A movable inclined block (508) is movably installed on one side of the inner cavity of the installation slot (509), and an installation spring (511) is installed on the upper end and the bottom end of the movable inclined block (508) on the side close to the installation slot (509). An extrusion rod (511) is installed in the middle of the side of the movable inclined block (508) close to the installation slot (509). 12), a detection head (513) is installed at one end of the extrusion rod (512) away from the movable inclined block (508), a reinforcement layer is installed on the outside of the detection head (513), a detection instrument (8) is installed at the bottom end of the inner cavity of the working frame (1), the detection head (513) is electrically connected to the detection instrument (8), the detection instrument (8) is electrically connected to the control panel, an operating rod (6) is installed at the top of the working frame (1), and a stabilizing ring plate is installed at the bottom of the outer periphery of the working frame (1). (7), a plurality of squeezing top balls (506) are installed on one side of the movable top rod (507) close to the movable inclined block (508), and a material collection ring plate (505) is installed on the bottom end of the sampling tube (401), and the material collection ring plate (505) and the limit stopper (504) are made of alloy material, and the outer side of the material collection ring plate (505) and the limit stopper (504) are inclined, and a notch is opened on the material collection ring plate (505) at a relative position to the limit stopper (504).

8. A detection method for a sampling device for detecting the maturation of undisturbed soil in sloping cultivated land, characterized in that: The detection method of the detection sampling device is applicable to the sloping farmland original soil maturation detection sampling device according to claim 7, comprising the following steps: Step 1: When sampling, the working frame (1) is moved to the position where sampling is required, and then the single-phase motor (301) is started to drive the rotating gear (304) to rotate through the rotating rod. When single-point or multi-point sampling is required, the fixed electromagnetic block (302) at the corresponding position is triggered, so that the fixed electromagnetic block (302) at the corresponding position loses its magnetism, and the connecting magnetic plate (310) and the transmission gear (303) at the corresponding position lose their restraining force, and the movable installation rod (305) is driven to move downward through the movable spring (312) in a stretched state, and the movable installation rod (305) is driven to move downward. The driving gear (303) moves downward, so that the driving gear (303) meshes with the rotating gear (304), driving the driving gear (303) to rotate, thereby driving the rotating screw (308) to rotate in the inner cavity of the moving slide cylinder (307), and driving the moving slider (306) to move inside the moving slide cylinder (307). When the moving slider (306) moves inside the moving slide cylinder (307), it contacts the positioning touch switch (309) at the corresponding position, and an alarm is sounded through the alarm outside the control panel to inform the staff of the depth of the material when taking out; Step 2: The fixed block (501) is driven to move downward by moving the slider (306), thereby driving the sampling tube (401) to move downward. When the sampling tube (401) moves downward, it passes through the material taking opening (9) and contacts the soil. When the sampling tube (401) continues to move downward, it contacts and squeezes the soil, and moves the soil into the sampling tube (401). When the sampling tube (401) moves downward, it squeezes the material taking guide bar (402) into the soil, and the soil is squeezed and fixed by the limiting chute (403). During the sampling process, the air at the upper end of the sampling tube (401) is transported to the inside of the movable opening (407). When the airflow flows in the inner cavity of the movable opening (407), the airflow is combined with the push sleeve (407). 08) contacts and pushes the push sleeve (408) to move upward, thereby driving the installation ring (409) to move upward, and driving the installation slide bar (411) to slide inside the installation slide groove (410), thereby increasing the stability of the installation ring (409) and the push sleeve (408) when they move. When the installation slide bar (411) moves, the extrusion spring (413) is extruded. Later, the extruded extrusion spring (413) drives the installation slide bar (411), the installation ring (409) and the push sleeve (408) to reset. When the installation slide bar (411) moves, it drives the connecting guide block to move. When the connecting guide block slides upward outside the conducting coil (412), the resistance of the single-phase motor (301) is reduced, the efficiency of the single-phase motor (301) is improved, and the contact The alarm light provided on the outside of the control panel is triggered to sound an alarm. When the density of the sampled soil is greater, the air pressure formed on the upper end of the sampling tube (401) during sampling will be greater, and the driving force generated on the pushing sleeve (408) will be greater, which will make the resistance of the single-phase motor (301) smaller when it is working. When the soil water content during sampling is too high, the liquid will flow into the limiting chute (403) and gather at the bottom of the limiting chute (403), so that the connecting guide blocks (405) on both sides are connected, and the alarm on the outside of the control panel is triggered to sound an alarm. When the material is taken, the electric push rod (503) is started to drive the fixed cross bar (515) to move downward, and drive the extrusion push rod (406) to move downward, and drive the limiting block (506) with the hinge as the axis. 4) one side moves downward, and when moving, it drives the docking slider (418) to slide inside the moving slide groove (417), so that the limit stopper (504) contacts and squeezes the bottom end of the sample body, which can not only cut off the bottom end of the sample body after sampling, but also limit and fix the sample body, thereby increasing the integrity of the sample body during sampling. When the limit stopper (504) contacts and squeezes the bottom end of the sample body, when the sample body contains too much liquid, the sample body is squeezed by the squeezing filter plate (415). When the sample body is subjected to the squeezing force, the liquid inside the sample body is squeezed into the receiving slot (414) through the filter holes inside the squeezing filter plate (415), so that the sample body particles inside the sample body will not move into the receiving slot (414), and the liquid is collected at the bottom end of the inner cavity of the receiving slot (414).and triggering the liquid level touch switch (416) to start the alarm device provided outside the control panel to sound an alarm; Step 3: When the sampling is completed and the test is performed, the electric push rod (503) is started to drive the fixed cross bar (515) to move downward, and the reset spring rod (516) is squeezed. Later, the reset spring rod (516) after squeezing drives the fixed cross bar (515) to move upward and reset, and drives the extrusion ejector rod (406) and the movable ejector rod (507) to move upward and reset, and drives the movable ejector rod (507) to move downward through the fixed cross bar (515), and drives the extrusion ejector ball (506) to move downward, so that the extrusion ejector ball (506) contacts the inclined surface of the movable inclined block (508), and pushes the movable inclined block (508) to move toward the side of the installation slot (509), and squeezes the installation spring (511), and then The installation spring (511) after being squeezed can be used to drive the movable inclined block (508) and the squeezing rod (512) to reset. When the movable inclined block (508) moves, it drives the squeezing rod (512) to slide inside the movable hole, thereby driving the detection head (513) to move inside the movable hole, so that the detection head (513) contacts and squeezes the sealing rubber ring (514), thereby expanding the sealing rubber ring (514), so that the squeezing rod (512) and the detection head (513) are inserted into the sample body, and the detection instrument (8) is started to detect the sample body. When the squeezing rod (512) and the detection head (513) are inserted into the sample body, the volume of the sample body expands, thereby increasing the fit between the sample body and the inner cavity of the sampling tube (401).

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