A ground condition monitoring system for leased land

Abstract

The present invention discloses a ground condition monitoring system for leased land, comprising an intelligent trolley, wherein the top of the intelligent trolley is fixedly connected to a shell, a collecting hole is opened inside the intelligent trolley, a soil nutrient content detector is fixedly connected inside the collecting hole, a sliding plate is slidably connected to an inner wall of one side of the shell, a second tension spring is fixedly connected between the top of the sliding plate and the top inner wall of the shell, a connecting rod is fixedly connected to one side of the sliding plate, and a first rack is fixedly connected to one side of the connecting rod. The present invention automatically collects soil through a device, and detects it in layers, and transmits the detection situation to the cloud in time, and can also detect the soil in layers, without manual intervention, and automatically completes the detection process, saving a lot of manpower and material resources, while being able to work continuously, greatly improving work efficiency, and being easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of land monitoring, and in particular to a ground state monitoring system for leased land. Background Art

[0002] The nutritional value of existing land needs to be evaluated before it is leased again. Usually, the soil is collected manually and tested to obtain its nutritional value for valuation. However, the operation is cumbersome, the testing area is large, and the workload is high. At the same time, manual operation has low fault tolerance and is inconvenient to use. Therefore, we propose a ground status monitoring system for leased land to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that the nutritional value of land needs to be evaluated before it is re-leased. Usually, the nutritional value is obtained by manually collecting soil and testing it for valuation. However, the operation is cumbersome, the testing area is large, the workload is high, and the manual operation has low fault tolerance and is inconvenient to use. A ground condition monitoring system for leased land is proposed.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A leased land ground condition monitoring system, comprising an intelligent trolley, a shell is fixedly connected to the top of the intelligent trolley, a collecting hole is provided inside the intelligent trolley, a soil nutrient content detector is fixedly connected inside the collecting hole, a sliding plate is slidably connected to an inner wall of one side of the shell, a second tension spring is fixedly connected between the top of the sliding plate and the inner wall of the top of the shell, a connecting rod is fixedly connected to one side of the sliding plate, a first rack is fixedly connected to one side of the connecting rod, a rectangular hole used in conjunction with the first rack is provided on the top of the shell, and a cutting assembly for cutting soil is provided on one side of the sliding plate;

[0006] A vertical cylinder is slidably connected to the inner wall of one side of the shell, a second rack is fixedly connected to the top of the vertical cylinder, a servo motor is fixedly connected to one side of the shell, an output shaft of the servo motor passes through the shell and is fixedly connected to a gear meshing with the second rack and the first rack, a fixing plate is fixedly connected to the top of the vertical cylinder, and a fixing component for fixing the first rack and the second rack is provided on one side of the fixing plate;

[0007] A collecting box is slidably connected to an inner wall of one side of the shell, and a collecting assembly for collecting soil is arranged on one side of the collecting box.

[0008] Preferably, the cutting assembly includes two rectangular grooves symmetrically arranged on one side of the sliding plate, the inner wall of the rectangular groove is slidably connected to a sliding block, one side of the sliding block is rotatably connected to a rotating shaft, one side of the rotating shaft is fixedly connected to an inclined plate, and the bottom of the inclined plate slides through the vertical cylinder, which is a cutting assembly for cutting soil.

[0009] Preferably, the fixing assembly includes a first clamping block slidably connected to one side of the fixing plate, a horizontal plate slidably connected to one side of the fixing plate, a vertical plate fixedly connected to the top of the horizontal plate, a second clamping block fixedly connected to the top of the vertical plate, a second rectangular plate fixedly connected to one side of the second rack, a second clamping groove engaged with the first clamping block is provided on one side of the second rectangular plate, a first rectangular plate fixedly connected to one side of the first rack, a first clamping groove engaged with the second clamping block is provided on one side of the first rectangular plate, and is used to fix the first rack and the second rack.

[0010] Preferably, the collecting assembly includes a bulldozer plate slidably connected to the inner wall of the bottom of the collecting box, the bottom of the bulldozer plate is fixedly connected to a push plate, one side of the push plate and one side of the collecting box are fixedly connected with a first spring, one side of the outer shell is fixedly connected to an electric push rod, the piston rod of the electric push rod passes through the outer shell and is fixedly connected to one side of the push plate, one side of the bulldozer plate is slidably connected to a convex plate, and the top of the push plate and the bottom of the convex plate are fixedly connected with a fourth spring for collecting soil.

[0011] Preferably, two symmetrically arranged fixed blocks are fixedly connected to the inner wall of one side of the shell, and two symmetrically arranged pressure plates are slidably connected to the inner wall of one side of the shell. The same second spring is fixedly connected between the bottom of the pressure plate and the top of the fixed block. The two pressure plates are respectively located directly below the second rectangular plate and the first rectangular plate, so as to ensure that the first rack and the second rack can rebound.

[0012] Preferably, a second limit block is fixedly connected to one side of the fixed plate, a third spring is fixedly connected between the second limit block and the first clamping block, a first limit block is fixedly connected to one side of the fixed plate, a first tension spring is fixedly connected between the first limit block and the cross plate, a first pushing block is fixedly connected to the top of the cross plate, and a second pushing block is fixedly connected to the bottom of the first clamping block, for releasing the braking state of the first clamping block.

[0013] Preferably, an infrared sensor is provided on one side of the housing to monitor whether any living creature enters the rental area.

[0014] A method for using a leased land ground condition monitoring system comprises the following steps:

[0015] S1. Move the device to the land to be monitored and move according to the set route. Every time the smart car moves a certain distance, the servo motor stops and the servo motor starts. The output shaft of the servo motor reverses and drives the gear to rotate. The gear drives the second rack to move vertically downward. The second rack drives the second rectangular plate and the vertical cylinder to move vertically downward. The vertical cylinder passes through the collection hole and is inserted into the soil. The second rectangular plate pushes one of the pressure plates and squeezes the second spring. At this time, the first card block is engaged with the second card slot to prevent the second rack from rebounding.

[0016] S2. Then, the output shaft of the servo motor rotates forward, and the output shaft of the servo motor drives the first rack to move vertically downward, the first rack drives the first rectangular plate and the connecting rod to move vertically downward, the connecting rod drives the sliding plate to move vertically downward, the sliding plate drives the two sliding blocks to move horizontally, the sliding block drives the rotating shaft to rotate, the rotating shaft drives the inclined plate to insert into the vertical cylinder and prevent the soil from falling, at this time, the first rectangular plate pushes the other pressing plate and squeezes the second spring, and the second clamping block is engaged with the first clamping groove;

[0017] S3, during the lateral movement of the second clamping block, the vertical plate drives the horizontal plate to move horizontally, the vertical plate drives the horizontal plate to move horizontally, the horizontal plate stretches the first push block, the first push block pulls the second push block to move horizontally, the second push block drives the first clamping block to move horizontally, and thus the engagement state of the first clamping block and the second clamping slot can be released. At this time, the output shaft of the servo motor reverses again, driving the second rack to move vertically upward, and at this time the vertical cylinder retracts the soil into the device;

[0018] S4. At this time, the electric push rod is started, which pushes the collection box to the bottom of the vertical cylinder and pushes the vertical cylinder to move vertically upward a certain distance, so that the gear and the second rack are no longer meshed, and the electric push rod is retracted while driving the convex plate to move horizontally. Since the vertical plate is extended to one side of the vertical cylinder, the convex plate drives the vertical plate to move horizontally, thereby releasing the braking state of the first rectangular plate, and the sliding plate returns to its initial position under the tension of the second tension spring. At this time, the electric push rod continuously extends and retracts the piston rod, and gradually sends the soil inside the vertical cylinder into the soil nutrient content detector in batches for detection, so as to detect the nutrient components of the soil at different depths. After the detection is completed, the soil is discharged and the information is transmitted to the cloud, which is convenient to use and easy to use continuously.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Move the device to the land to be monitored and move according to the set route. Every time the smart car moves a certain distance, the servo motor stops and the servo motor starts. The output shaft of the servo motor reverses and drives the gear to rotate. The gear drives the second rack to move vertically downward. The second rack drives the second rectangular plate and the vertical cylinder to move vertically downward. The vertical cylinder passes through the collection hole and is inserted into the soil. The second rectangular plate pushes one of the pressure plates and squeezes the second spring. At this time, the first card block is engaged with the second card slot to prevent the second rack from rebounding.

[0021] 2. Then, the output shaft of the servo motor rotates forward, and the output shaft of the servo motor drives the first rack to move vertically downward, the first rack drives the first rectangular plate and the connecting rod to move vertically downward, the connecting rod drives the sliding plate to move vertically downward, the sliding plate drives the two sliding blocks to move horizontally, the sliding blocks drive the rotating shaft to rotate, the rotating shaft drives the inclined plate to insert into the vertical cylinder and prevent the soil from falling, at this time, the first rectangular plate pushes the other pressing plate and squeezes the second spring, and the second clamping block is engaged with the first clamping groove;

[0022] 3. During the horizontal movement of the second clamping block, the vertical plate drives the horizontal plate to move horizontally, the vertical plate drives the horizontal plate to move horizontally, the horizontal plate stretches the first push block, the first push block pulls the second push block to move horizontally, the second push block drives the first clamping block to move horizontally, and then the engagement state of the first clamping block and the second clamping slot can be released. At this time, the output shaft of the servo motor reverses again, driving the second rack to move vertically upward, and the vertical cylinder retracts the soil into the device;

[0023] 4. At this time, the electric push rod is started, which pushes the collection box to the bottom of the vertical cylinder and pushes the vertical cylinder to move vertically upward a certain distance, so that the gear and the second rack are no longer engaged, and the electric push rod is retracted while driving the convex plate to move horizontally. Since the vertical plate is extended to one side of the vertical cylinder, the convex plate drives the vertical plate to move horizontally, thereby releasing the braking state of the first rectangular plate, and the sliding plate returns to its initial position under the tension of the second tension spring. At this time, the electric push rod continuously extends and retracts the piston rod, and gradually sends the soil inside the vertical cylinder into the soil nutrient content detector in batches for detection, so as to detect the nutrient content of the soil at different depths. After the detection is completed, the soil is discharged and the information is transmitted to the cloud, which is convenient to use and easy to use continuously.

[0024] The present invention automatically collects soil through a device and detects it in layers. The detection results are transmitted to the cloud in a timely manner. At the same time, the soil can be detected in layers without human intervention. The detection process is automatically completed, saving a lot of manpower and material resources. At the same time, it can work continuously, greatly improve work efficiency, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a ground condition monitoring system for leased land proposed by the present invention;

[0026] Figure 2 A three-dimensional cross-sectional view of a leased land ground condition monitoring system proposed by the present invention;

[0027] Figure 3 A three-dimensional diagram of the vertical cylinder and the servo motor in the present invention;

[0028] Figure 4 A three-dimensional diagram of the electric push rod and the collection box in the present invention;

[0029] Figure 5 It is a three-dimensional diagram of the vertical tube and the inclined plate in the present invention;

[0030] Figure 6 A three-dimensional diagram of the first rack and the second rack in the present invention;

[0031] Figure 7 A three-dimensional diagram of the gear in the present invention;

[0032] Figure 8 It is a three-dimensional diagram of the fixing plate in the present invention.

[0033] In the figure: 1. smart car; 2. electric push rod; 3. infrared sensor; 4. shell; 5. rectangular hole; 6. first rack; 7. first rectangular plate; 8. third spring; 9. push plate; 10. bulldozer; 11. collecting box; 12. soil nutrient content detector; 13. vertical cylinder; 14. fixed plate; 15. inclined plate; 16. sliding plate; 17. second rack; 18. connecting rod; 19. servo motor; 20. gear; 21. rectangular slot; 22. second rectangular plate; 23. fixed block; 24. first spring; 25. rotating shaft; 26. sliding block; 27. first card slot; 28. second card slot; 29. ​​pressing plate; 30. first card block; 31. first pushing block; 32. second spring; 33. first limit block; 34. first tension spring; 35. second pushing block; 36. horizontal plate; 37. vertical plate; 38. Second clamping block; 39. Second limiting block; 40. Collecting hole; 41. Convex plate; 42. Fourth spring; 43. Second tension spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Embodiment 1

[0036] Reference Figure 1-Figure 8, a leased land ground state monitoring system, comprising an intelligent trolley 1, a shell 4 is fixedly connected to the top of the intelligent trolley 1, a collecting hole 40 is opened inside the intelligent trolley 1, a soil nutrient content detector 12 is fixedly connected inside the collecting hole 40, a sliding plate 16 is slidably connected to the inner wall of one side of the shell 4, a second tension spring 43 is fixedly connected between the top of the sliding plate 16 and the top inner wall of the shell 4, a connecting rod 18 is fixedly connected to one side of the sliding plate 16, a first rack 6 is fixedly connected to one side of the connecting rod 18, a rectangular hole 5 used in conjunction with the first rack 6 is opened on the top of the shell 4, and a cutting component for cutting soil is arranged on one side of the sliding plate 16;

[0037] A vertical cylinder 13 is slidably connected to the inner wall of one side of the housing 4, a second rack 17 is fixedly connected to the top of the vertical cylinder 13, a servo motor 19 is fixedly connected to one side of the housing 4, an output shaft of the servo motor 19 passes through the housing 4 and is fixedly connected to a gear 20 meshing with the second rack 17 and the first rack 6, a fixing plate 14 is fixedly connected to the top of the vertical cylinder 13, and a fixing component for fixing the first rack 6 and the second rack 17 is provided on one side of the fixing plate 14;

[0038] A collecting box 11 is slidably connected to an inner wall of one side of the outer shell 4, and a collecting assembly for collecting soil is disposed on one side of the collecting box 11.

[0039] Embodiment 2

[0040] Reference Figure 1-Figure 8 , a leased land ground state monitoring system, comprising an intelligent trolley 1, a shell 4 is fixedly connected to the top of the intelligent trolley 1, a collecting hole 40 is provided inside the intelligent trolley 1, a soil nutrient content detector 12 is fixedly connected to the inside wall of the shell 4, a sliding plate 16 is slidably connected to the inner wall of one side of the shell 4, a second tension spring 43 is fixedly connected between the top of the sliding plate 16 and the inner wall of the top of the shell 4, a connecting rod 18 is fixedly connected to one side of the sliding plate 16, a first rack 6 is fixedly connected to one side of the connecting rod 18, a rectangular hole 5 used in conjunction with the first rack 6 is provided on the top of the shell 4, a cutting assembly for cutting soil is provided on one side of the sliding plate 16, the cutting assembly comprises two rectangular grooves 21 symmetrically provided on one side of the sliding plate 16, a sliding block 26 is slidably connected to the inner wall of the rectangular groove 21, a rotating shaft 25 is rotatably connected to one side of the sliding block 26, a slanted plate 15 is fixedly connected to one side of the rotating shaft 25, and the bottom of the slanted plate 15 slides through the vertical cylinder 13, a cutting assembly for cutting soil;

[0041] A vertical cylinder 13 is slidably connected to the inner wall of one side of the housing 4, a second rack 17 is fixedly connected to the top of the vertical cylinder 13, and a servo motor 19 is fixedly connected to one side of the housing 4. The output shaft passes through the housing 4 and is fixedly connected with a gear 20 meshing with the second rack 17 and the first rack 6. The top of the vertical cylinder 13 is fixedly connected with a fixed plate 14. One side of the fixed plate 14 is provided with a fixing assembly for fixing the first rack 6 and the second rack 17. The fixing assembly includes a first clamping block 30 slidably connected to one side of the fixed plate 14, a horizontal plate 36 is slidably connected to one side of the fixed plate 14, a vertical plate 37 is fixedly connected to the top of the horizontal plate 36, and a second clamping block 38 is fixedly connected to the top of the vertical plate 37. One side of the second rack 17 is fixedly connected with a second rectangular plate 22, and one side of the second rectangular plate 22 is provided with a second clamping groove 28 engaged with the first clamping block 30. One side of the first rack 6 is fixedly connected with a first rectangular plate 7, and one side of the first rectangular plate 7 is provided with a first clamping groove 27 engaged with the second clamping block 38, for fixing the first rack 6 and the second rack 17;

[0042] A collecting box 11 is slidably connected to the inner wall of one side of the shell 4, and a collecting assembly for collecting soil is arranged on one side of the collecting box 11, and the collecting assembly includes a bulldozer 10 slidably connected to the inner wall of the bottom of the collecting box 11, and a push plate 9 is fixedly connected to the bottom of the bulldozer 10, and a first spring 24 is fixedly connected between one side of the push plate 9 and one side of the collecting box 11, an electric push rod 2 is fixedly connected to one side of the shell 4, and the piston rod of the electric push rod 2 passes through the shell 4 and is fixedly connected to one side of the push plate 9, a convex plate 41 is slidably connected to one side of the bulldozer 10, and a fourth spring 42 is fixedly connected between the top of the push plate 9 and the bottom of the convex plate 41 for collecting soil, two symmetrically arranged fixed blocks 23 are fixedly connected to the inner wall of one side of the shell 4, and two symmetrically arranged pressure plates 29 are slidably connected to the inner wall of one side of the shell 4, and the pressure plates 29 A same second spring 32 is fixedly connected between the bottom and the top of the fixed block 23, and the two pressure plates 29 are respectively located directly below the second rectangular plate 22 and the first rectangular plate 7, for ensuring that the first rack 6 and the second rack 17 can rebound, a second limit block 39 is fixedly connected to one side of the fixed plate 14, a same third spring 8 is fixedly connected between the second limit block 39 and the first clamping block 30, a first limit block 33 is fixedly connected to one side of the fixed plate 14, a same first tension spring 34 is fixedly connected between the first limit block 33 and the cross plate 36, a first push block 31 is fixedly connected to the top of the cross plate 36, and a second push block 35 is fixedly connected to the bottom of the first clamping block 30, for releasing the braking state of the first clamping block 30, and an infrared sensor 3 is provided on one side of the housing 4 for monitoring whether there is a biological organism entering the rental area.

[0043] A method for using a leased land ground condition monitoring system comprises the following steps:

[0044] S1. Move the device to the land to be monitored and move according to the set route. Every time the smart car 1 moves a certain distance, it stops and the servo motor 19 is started. The output shaft of the servo motor 19 is reversed and drives the gear 20 to rotate. The gear 20 drives the second rack 17 to move vertically downward. The second rack 17 drives the second rectangular plate 22 and the vertical cylinder 13 to move vertically downward. The vertical cylinder 13 passes through the collection hole 40 and is inserted into the soil. The second rectangular plate 22 pushes one of the pressure plates 29 and squeezes the second spring 32. At this time, the first clamping block 30 is engaged with the second clamping groove 28 to prevent the second rack 17 from rebounding.

[0045] S2. Then, the output shaft of the servo motor 19 rotates forward, and the output shaft of the servo motor 19 drives the first rack 6 to move vertically downward, the first rack 6 drives the first rectangular plate 7 and the connecting rod 18 to move vertically downward, the connecting rod 18 drives the sliding plate 16 to move vertically downward, the sliding plate 16 drives the two sliding blocks 26 to move horizontally, the sliding blocks 26 drive the rotating shaft 25 to rotate, the rotating shaft 25 drives the inclined plate 15 to insert into the vertical cylinder 13 and prevent the soil from falling, at this time, the first rectangular plate 7 pushes the other pressing plate 29 and squeezes the second spring 32, and the second clamping block 38 is engaged with the first clamping groove 27;

[0046] S3, during the lateral movement of the second clamping block 38, the vertical plate 37 is driven to move horizontally, the vertical plate 37 is driven to move horizontally, the vertical plate 37 is driven to move horizontally, the horizontal plate 36 is driven to move horizontally, the horizontal plate 36 stretches the first push block 31, the first push block 31 pulls the second push block 35 to move horizontally, the second push block 35 is driven to move horizontally, and the first clamping block 30 and the second clamping groove 28 are released from the engagement state, at this time, the output shaft of the servo motor 19 is reversed again, driving the second rack 17 to move vertically upward, at this time, the vertical cylinder 13 retracts the soil into the device;

[0047] S4. At this time, the electric push rod 2 is started, and the electric push rod 2 pushes the collection box 11 to the bottom of the vertical cylinder 13, and pushes the vertical cylinder 13 to move vertically upward for a certain distance, so that the gear 20 is no longer meshed with the second rack 17. At the same time, the electric push rod 2 is retracted and drives the convex plate 41 to move horizontally. Since the vertical plate 37 is extended to one side of the vertical cylinder 13, the convex plate 41 drives the vertical plate 37 to move horizontally, thereby releasing the braking state of the first rectangular plate 7. The sliding plate 16 returns to its initial position under the tension of the second tension spring 43. At this time, the electric push rod 2 continuously extends and retracts the piston rod, and gradually sends the soil inside the vertical cylinder 13 into the soil nutrient content detector 12 in batches for detection, so as to detect the nutrient components of the soil at different depths. After the detection is completed, the soil is discharged and the information is transmitted to the cloud. It is easy to use and convenient for continuous use.

[0048] However, as is well known to those skilled in the art, the working principles and wiring methods of the servo motor 19, infrared sensor 3, electric push rod 2 and soil nutrient content detector 12 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A leased land ground condition monitoring system, comprising an intelligent vehicle (1), characterized in that: The top of the smart car (1) is fixedly connected to a shell (4), a collecting hole (40) is provided inside the smart car (1), a soil nutrient content detector (12) is fixedly connected inside the collecting hole (40), a sliding plate (16) is slidably connected to the inner wall of one side of the shell (4), a second tension spring (43) is fixedly connected between the top of the sliding plate (16) and the inner wall of the top of the shell (4), a connecting rod (18) is fixedly connected to one side of the sliding plate (16), a first rack (6) is fixedly connected to one side of the connecting rod (18), a rectangular hole (5) used in conjunction with the first rack (6) is provided on the top of the shell (4), and a cutting component for cutting soil is provided on one side of the sliding plate (16); A vertical cylinder (13) is slidably connected to the inner wall of one side of the shell (4), a second rack (17) is fixedly connected to the top of the vertical cylinder (13), a servo motor (19) is fixedly connected to one side of the shell (4), an output shaft of the servo motor (19) passes through the shell (4) and is fixedly connected to a gear (20) meshing with the second rack (17) and the first rack (6), a fixing plate (14) is fixedly connected to the top of the vertical cylinder (13), and a fixing component for fixing the first rack (6) and the second rack (17) is provided on one side of the fixing plate (14); A collecting box (11) is slidably connected to the inner wall of one side of the housing (4), a collecting assembly for collecting soil is provided on one side of the collecting box (11), the cutting assembly comprises two rectangular grooves (21) symmetrically arranged on one side of the sliding plate (16), a sliding block (26) is slidably connected to the inner wall of the rectangular groove (21), a rotating shaft (25) is rotatably connected to one side of the sliding block (26), a slanting plate (15) is fixedly connected to one side of the rotating shaft (25), and the bottom of the slanting plate (15) is slidably connected to the inner wall of the rectangular groove (21), The fixing assembly includes a first clamping block (30) slidably connected to one side of the fixing plate (14), a horizontal plate (36) slidably connected to one side of the fixing plate (14), a vertical plate (37) fixedly connected to the top of the horizontal plate (36), a second clamping block (38) fixedly connected to the top of the vertical plate (37), a second rectangular plate (22) fixedly connected to one side of the second rack (17), and a first clamping block (30) opened on one side of the second rectangular plate (22) and connected to the first clamping block (30). ), a first rectangular plate (7) is fixedly connected to one side of the first rack (6), a first slot (27) is provided on one side of the first rectangular plate (7) and is engaged with a second block (38), the collecting assembly further comprises an electric push rod (2) fixedly connected to one side of the housing (4), a piston rod of the electric push rod (2) passes through the housing (4) and is fixedly connected to one side of the push plate (9), a convex plate (41) is slidably connected to one side of the bulldozer (10), and the push plate ( A fourth spring (42) is fixedly connected between the top of the housing (9) and the bottom of the convex plate (41), two symmetrically arranged fixing blocks (23) are fixedly connected to the inner wall of one side of the housing (4), two symmetrically arranged pressing plates (29) are slidably connected to the inner wall of one side of the housing (4), a second spring (32) is fixedly connected between the bottom of the pressing plate (29) and the top of the fixing block (23), and the two pressing plates (29) are respectively located directly below the second rectangular plate (22) and the first rectangular plate (7).

2. A leased land ground condition monitoring system according to claim 1, characterized in that: The collecting assembly comprises a bulldozer plate (10) slidably connected to the inner wall of the bottom of the collecting box (11); a push plate (9) is fixedly connected to the bottom of the bulldozer plate (10); and a first spring (24) is fixedly connected between one side of the push plate (9) and one side of the collecting box (11).

3. A leased land ground condition monitoring system according to claim 1, characterized in that: A second limit block (39) is fixedly connected to one side of the fixed plate (14); a third spring (8) is fixedly connected between the second limit block (39) and the first clamping block (30); a first limit block (33) is fixedly connected to one side of the fixed plate (14); a first tension spring (34) is fixedly connected between the first limit block (33) and the transverse plate (36); a first push block (31) is fixedly connected to the top of the transverse plate (36); and a second push block (35) is fixedly connected to the bottom of the first clamping block (30).

4. A leased land ground condition monitoring system according to claim 1, characterized in that: An infrared sensor (3) is provided on one side of the housing (4).

5. A method for using a leased land ground condition monitoring system according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Move the device to the land to be monitored and move according to the set route. Every time the smart car (1) moves a certain distance, it stops and the servo motor (19) starts. The output shaft of the servo motor (19) reverses and drives the gear (20) to rotate. The gear (20) drives the second rack (17) to move vertically downward. The second rack (17) drives the second rectangular plate (22) and the vertical cylinder (13) to move vertically downward. The vertical cylinder (13) passes through the collection hole (40) and is inserted into the soil. The second rectangular plate (22) pushes one of the pressure plates (29) and squeezes the second spring (32). At this time, the first clamping block (30) is engaged with the second clamping groove (28) to prevent the second rack (17) from rebounding. S2. Then, the output shaft of the servo motor (19) rotates forward, and the output shaft of the servo motor (19) drives the first rack (6) to move vertically downward, the first rack (6) drives the first rectangular plate (7) and the connecting rod (18) to move vertically downward, the connecting rod (18) drives the sliding plate (16) to move vertically downward, the sliding plate (16) drives the two sliding blocks (26) to move horizontally, the sliding blocks (26) drive the rotating shaft (25) to rotate, the rotating shaft (25) drives the inclined plate (15) to insert into the vertical cylinder (13) and prevent the soil from falling, at this time, the first rectangular plate (7) pushes the other pressing plate (29) and squeezes the second spring (32), and the second clamping block (38) is engaged with the first clamping groove (27); S3, during the lateral movement of the second clamping block (38), the vertical plate (37) is driven to move horizontally, the vertical plate (37) is driven to move horizontally, the vertical plate (37) is driven to move horizontally, the horizontal plate (36) is driven to move horizontally, the horizontal plate (36) stretches the first push block (31), the first push block (31) pulls the second push block (35) to move horizontally, the second push block (35) drives the first clamping block (30) to move horizontally, and the engagement state between the first clamping block (30) and the second clamping groove (28) is released, at which time the output shaft of the servo motor (19) is reversed again, driving the second rack (17) to move vertically upward, and at this time the vertical cylinder (13) retracts the soil into the device; S4. At this time, the electric push rod (2) is started, and the electric push rod (2) pushes the collection box (11) to the right below the vertical cylinder (13), and pushes the vertical cylinder (13) to move a little distance vertically upward, so that the gear (20) and the second rack (17) are no longer meshed. At the same time, the electric push rod (2) is retracted and drives the convex plate (41) to move horizontally. Since the vertical plate (37) is extended to one side of the vertical cylinder (13), the convex plate (41) drives the vertical plate (37) to move horizontally, thereby releasing the braking state of the first rectangular plate (7). The sliding plate (16) returns to the initial position under the tension of the second tension spring (43). At this time, the electric push rod (2) continuously extends and retracts the piston rod, and gradually sends the soil inside the vertical cylinder (13) into the soil nutrient content detector (12) in batches for detection, and then detects the nutrient components of the soil at different depths. After the detection is completed, it is discharged and the information is transmitted to the cloud.

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