A sampling device and method for land detection

Abstract

The present invention relates to the technical field of land detection sampling equipment. The present invention discloses a sampling device and method for land detection, including limiting rods. There are two limiting rods, and the two limiting rods are symmetrically and vertically arranged on the ground. A mounting plate is horizontally arranged at the tops of the two limiting rods. The mounting plate passes through the tops of the two limiting rods and is slidably connected to them up and down. A driving earth-drilling device is arranged at the bottom of the mounting plate. The driving earth-drilling device includes a vibration assembly, a driving switching assembly, and a mounting box. The vibration assembly is arranged at the bottom of the mounting plate, and the driving switching assembly is arranged at the side end of the vibration assembly; this device realizes the relatively easy and convenient extraction of the soil sample inside the soil sampling cylinder after soil sampling is completed, and when replacing or installing the soil sampling cylinder and the earth-drilling rod, manual operation is saved as much as possible, thereby improving the sampling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of land detection sampling equipment, and in particular to a sampling device and method for land detection. Background Technique

[0002] Soil quality refers to the ability to maintain the productivity of the ecosystem and the health of animals and plants without soil degradation and other ecological environment problems, including soil, water and biological characteristics related to human needs, and is related to the land environmental conditions for the purposes of production, protection and environmental management. With the continuous increase of the population's pressure on land resources and the unreasonable use of land by humans leading to land degradation and seriously threatening the global land resources, when using land for planting work, construction work, etc., it is necessary to detect factors such as the organic matter content, pH value, and humidity in the soil. The detection of soil often uses a sampling device to sample the soil;

[0003] The traditional sampling method is to drill a soil sampling cylinder into the ground manually. During the drilling process, the soil enters the inside of the soil sampling cylinder. After sampling is completed, the soil sampling cylinder is pulled out of the ground, and then the soil inside the soil sampling cylinder is pushed out manually and collected to complete the sampling. This method is time-consuming and laborious and the operation is cumbersome. Moreover, during the sampling process, it is often necessary to sample different depths of the underground area. For different depths, a corresponding length of drilling rod needs to be connected to the top of the soil sampling cylinder to facilitate the soil sampling cylinder to penetrate deeper underground for sampling. However, the installation of the soil sampling cylinder and the drilling rod often requires multiple people to assemble together, thus reducing the soil sampling efficiency; there is a lack of a device that can more easily and conveniently take out the soil sample inside the soil sampling cylinder after soil sampling is completed, and can save manual operation as much as possible when replacing or installing the soil sampling cylinder and the drilling rod, so as to improve the sampling efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a sampling device and method for land detection to solve the problems raised in the above-mentioned background technology. To achieve the above purpose, the present invention provides the following technical solutions: including a limiting rod, there are two limiting rods, and the two limiting rods are symmetrically and vertically arranged on the ground. A mounting plate is horizontally arranged at the top of the two limiting rods. The mounting plate passes through the tops of the two limiting rods and is slidably connected to them up and down. A driving earth-drilling device is arranged at the bottom of the mounting plate. The driving earth-drilling device includes a vibration component, a driving switching component, and a mounting box. The vibration component is arranged at the bottom of the mounting plate, the driving switching component is arranged at the side end of the vibration component, the mounting box is arranged at the bottom of the vibration component, a drill rod is vertically and detachably arranged at the bottom of the mounting box, the bottom of the drill rod is closed, and a sampling device is vertically arranged at the bottom of the drill rod. The sampling device includes a soil sampling cylinder, a closing flap, and an opening earth-pushing component. The top of the soil sampling cylinder is threadedly connected to the bottom of the drill rod. One side of the lower end of the soil sampling cylinder is rotatably connected to one side of the closing flap. The soil sampling cylinder and the closing flap form a complete cylinder, and a sampling cavity is provided inside the soil sampling cylinder and the closing flap. An opening earth-pushing component is provided at the rotational connection of the soil sampling cylinder and the closing flap. An installation component is provided between the top end of the drill rod and the side end of the vibration component.

[0005] Preferably, the vibration component includes a fixed box, a driving shaft, a cam, a connecting rod, a sliding rod, and a first spring. The fixed box is arranged at the bottom of the mounting plate. A cavity is provided in the middle of the inner side of the fixed box. The driving shaft horizontally passes through the upper end of the fixed box and is rotatably connected to it. The cam is located in the cavity of the fixed box, and one end of the cam is connected to the driving shaft. The sliding rod vertically passes through the lower end of the fixed box and is slidably connected to it up and down. One end of the connecting rod is rotatably connected to one end of the cam, and the other end of the connecting rod is rotatably connected to the top end of the sliding rod. There are two first springs, and the two first springs are symmetrically arranged on both sides of the sliding rod, and the top ends of the two first springs are both connected to the lower end of the inner side of the fixed box. The sliding rod is flush with the bottom ends of the two first springs. The top of the mounting box is connected to the bottom of the sliding rod and the bottom of the two first springs.

[0006] Preferably, the driving and switching component includes a first gear, a driving motor, a sliding frame, a second gear, a switching gear, a switching frame, a first bevel gear and a second bevel gear. The first gear is arranged at one end of the driving shaft. The sliding frame is arranged at the upper end of one side of the fixed box. The driving motor is arranged at the side end of the fixed box. The second gear is arranged on the output end of the driving motor. The switching gear is slidably connected to the sliding frame through a connecting piece, and the switching gear is rotatably connected to the connecting piece. The second gear meshes with the switching gear. The switching frame is arranged at the lower end of one side of the fixed box. The first bevel gear is vertically and rotatably arranged on one side of the switching frame. The second bevel gear is horizontally and rotatably connected to the lower end of the switching frame. The first bevel gear meshes with the second bevel gear. The switching gear is pre-meshed with the first gear and the first bevel gear.

[0007] Preferably, a mounting hole is provided in the middle of the bottom of the mounting box, and a second spring is vertically provided at the top inside the mounting hole.

[0008] Preferably, the earth pushing and opening component includes a rotating shaft, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a toothed groove plate and an earth pushing plate. A rotating shaft is provided at the rotating connection of the soil collection cylinder and the closing flap. A cavity is provided inside one end of the soil collection cylinder close to the earth drilling rod. A third bevel gear is provided at one end of the rotating shaft. The upper and lower ends of the third bevel gear are symmetrically provided with a fourth bevel gear and a fifth bevel gear. The fourth bevel gear and the fifth bevel gear are coaxially and rotatably connected inside the cavity, and both the fourth bevel gear and the fifth bevel gear mesh with the third bevel gear. The toothed groove plate is arranged inside the cavity and is slidably connected to the inner side wall of the soil collection cylinder in the horizontal direction. The earth pushing plate is arranged at one end of the soil collection cylinder close to the earth drilling rod and closes the end of the soil collection cylinder. One side of the earth pushing plate is slidably connected to one side inside the soil collection cylinder. The other side of the earth pushing plate passes through the side wall of the soil collection cylinder and is connected to the toothed groove plate. An opening for the earth pushing plate to slide is provided on the side wall of the soil collection cylinder, and a sealing soft curtain for closing the opening is provided at the opening, and both ends of the sealing soft curtain are respectively connected to the side end of the earth pushing plate and the side end of the opening.

[0009] Preferably, one end of the closing flap in contact with the soil collection cylinder is provided with a mutually fitting convex part and concave part, and the convex part and the concave part are magnetically connected to each other.

[0010] Preferably, the mounting component includes a connecting shaft, a third gear and a fourth gear. The connecting shaft is vertically arranged at the rotating connection of the second bevel gear and the switching frame. The third gear is arranged at the lower end of the connecting shaft. The fourth gear is arranged at the top end of the earth drilling rod, and the third gear meshes with the fourth gear.

[0011] Preferably, a method for using the soil sampling device for land detection includes the following steps:

[0012] S1: When the device is used, the top end of the drilling rod corresponding to the sampling depth is detachably connected to the bottom end of the vibration assembly, and the bottom end of the drilling rod is threadedly connected to the top end of the soil sampling tube, and then the soil sampling tube is vertically placed on the ground, and the bottom of the soil sampling tube is in contact with the ground;

[0013] S2: Control the drive switching component to work and switch the drive source to the vibration component to drive the drilling rod and the soil extraction barrel to generate high-frequency vibration. During the vibration process, hold the mounting plate vertically downward to make the soil extraction barrel penetrate into the ground and penetrate to the specified depth to complete soil extraction;

[0014] S3: After the soil sampling is completed, the mounting plate is pulled upward to make the soil sampling tube separate from the ground, and then a bucket marked with the soil sampling depth is placed directly below the soil sampling tube, the closed flap is flipped to one side to open the sampling chamber, and the pusher assembly is opened to push the sampled soil inside the soil sampling tube into the inside of the bucket, and the high-frequency vibration of the vibration assembly is used to assist, so that the soil inside the soil sampling tube completely enters the inside of the bucket;

[0015] S4: After taking out the sampled soil, when it is necessary to take soil from a deeper depth underground, control the vibration assembly to stop working, first rotate and remove the drilling rod, then detachably connect the top of the drilling rod of corresponding length to the bottom of the vibration assembly, and dock the bottom of the drilling rod with the top of the soil sampling barrel, then switch the driving source to the installation assembly through the driving switching assembly, so that the drilling rod and the soil sampling barrel are automatically threadedly connected for installation. After the installation is completed, repeat the above operation to carry out deeper underground soil sampling operations.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, when it is necessary to control the soil extracting barrel to go deep into the ground, the driving motor is first controlled to drive the second gear to rotate counterclockwise, thereby driving the switching gear to slide on the sliding frame in the direction of the first gear and mesh with it, thereby driving the first gear to rotate. During the rotation, the driving shaft is driven to rotate continuously, thereby driving the cam to continue to perform circular motion, thereby driving the sliding rod to continue to perform up and down reciprocating motion, and reset at high speed under the action of the first spring, thereby driving the installation box, the drilling rod and the soil extracting rod to move up and down at high speed to achieve the effect of high-frequency vibration, thereby achieving the effect of the soil extracting barrel to penetrate the ground more efficiently and penetrate to the specified depth to complete the soil extraction.

[0018] In the present invention, after the soil sampling cylinder has completed soil sampling and separated from the ground, a bucket marked with the soil sampling depth is placed at the bottom of the soil sampling cylinder. The closing flap is flipped to one side, driving the rotation shaft to rotate, and then driving the third bevel gear to rotate, thereby driving the fourth bevel gear and the fifth bevel gear to rotate counterclockwise, causing the toothed groove plate to slide towards the bottom of the soil sampling cylinder, and then driving the soil pushing plate to slide synchronously towards the bottom of the soil sampling cylinder, so as to push out the sampled soil inside the soil sampling cylinder and drop it into the bucket. There is no need for manual soil sampling, and with the high-frequency vibration of the vibration component, the soil inside the soil sampling cylinder can completely enter the bucket, which is convenient, fast, time-saving and labor-saving.

[0019] In the present invention, when the drilling rod needs to be connected to the soil sampling cylinder, first, the bottom of the drilling rod is docked with the top of the soil sampling cylinder. Then, the driving motor is controlled to work to drive the second gear to rotate clockwise, driving the switching gear to disengage from the first gear and engage with the first bevel gear, and then driving the second bevel gear and the connecting shaft to rotate. While rotating, the third gear is driven to rotate, and then the fourth gear meshing with it is driven to rotate, thereby driving the drilling rod to rotate, so that the bottom of the drilling rod is threadedly connected to the top of the soil sampling cylinder during the rotation process, thus realizing the automated installation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the three-dimensional structure schematic diagram of the present invention Figure 1 ;

[0021] Figure 2 is the three-dimensional structure schematic diagram of the drilling rod and the sampling device in the present invention;

[0022] Figure 3 is the three-dimensional structure schematic diagram of the drilling rod in the present invention;

[0023] Figure 4 is the three-dimensional structure schematic diagram of the sampling device in the present invention Figure 1 ;

[0024] Figure 5 is the structure schematic diagram of the open state of the sampling device in the present invention;

[0025] Figure 6 is the three-dimensional structure schematic diagram of the open soil pushing component in the present invention;

[0026] Figure 7 is Figure 6 the enlarged view of A in

[0027] Figure 8 is the three-dimensional structure schematic diagram of the sampling device in the present invention Figure 2 ;

[0028] Figure 9 is the three-dimensional structure schematic diagram of the driving drilling device and the drilling rod in the present invention;

[0029] Figure 10 This is a three-dimensional structural schematic diagram of the driving earth-boring device in the present invention;

[0030] Figure 11 This is a sectional view of the driving earth-boring device in the present invention;

[0031] Figure 12 This is a partial structural schematic diagram of the vibration assembly in the present invention;

[0032] Figure 13 This is a three-dimensional structural schematic diagram of the vibration assembly and the driving switching assembly in the present invention;

[0033] Figure 14 is Figure 13 an enlarged view of part B in

[0034] In the figure: 1. Limit rod; 2. Mounting plate; 3. Driving earth-boring device; 31. Vibration assembly; 311. Fixed box; 312. Driving shaft; 313. Cam; 314. Connecting rod; 315. Sliding rod; 316. First spring; 32. Driving switching assembly; 321. First gear; 322. Driving motor; 323. Sliding frame; 324. Second gear; 325. Switching gear; 326. Switching frame; 327. First bevel gear; 328. Second bevel gear; 33. Mounting box; 331. Mounting hole; 332. Second spring; 4. Earth-boring rod; 5. Sampling device; 51. Soil sampling cylinder; 52. Sealing flap; 53. Opening earth-pushing assembly; 531. Rotating shaft; 532. Third bevel gear; 533. Fourth bevel gear; 534. Fifth bevel gear; 535. Tooth groove plate; 536. Earth-pushing plate; 6. Mounting assembly; 61. Connecting shaft; 62. Third gear; 63. Fourth gear. Detailed implementation manners

[0035] 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.

[0036] Please refer to Figures 1 to 14, the present invention provides a technical solution: including a limiting rod 1, there are two limiting rods 1, the two limiting rods 1 are symmetrically and vertically arranged on the ground, a mounting plate 2 is horizontally arranged at the top of the two limiting rods 1, the mounting plate 2 passes through the top of the two limiting rods 1 and is slidably connected with them up and down, a driving earth-drilling device 3 is arranged at the bottom of the mounting plate 2, the driving earth-drilling device 3 includes a vibration component 31, a driving switching component 32 and a mounting box 33, the vibration component 31 is arranged at the bottom of the mounting plate 2, the driving switching component 32 is arranged at the side end of the vibration component 31, the mounting box 33 is arranged at the bottom of the vibration component 31, a earth-drilling rod 4 is vertically and detachably arranged at the bottom of the mounting box 33, the bottom of the earth-drilling rod 4 is closed, a sampling device 5 is vertically arranged at the bottom of the earth-drilling rod 4, the sampling device 5 includes a soil sampling cylinder 51, a closing flap 52 and an opening earth-pushing component 53, the top of the soil sampling cylinder 51 is threadedly connected with the bottom of the earth-drilling rod 4, one side of the lower end of the soil sampling cylinder 51 is rotatably connected with one side of the closing flap 52, the soil sampling cylinder 51 and the closing flap 52 form a complete cylinder and a sampling cavity is arranged inside the soil sampling cylinder 51 and the closing flap 52, an opening earth-pushing component 53 is arranged at the rotational connection of the soil sampling cylinder 51 and the closing flap 52, and a mounting component 6 is arranged between the top end of the earth-drilling rod 4 and the side end of the vibration component 31.

[0037] In this embodiment, as Figures 9 to 14 shown, the vibration component 31 includes a fixed box 311, a driving shaft 312, a cam 313, a connecting rod 314, a sliding rod 315 and a first spring 316. The fixed box 311 is arranged at the bottom of the mounting plate 2. A cavity is arranged in the middle of the inner side of the fixed box 311. The driving shaft 312 horizontally passes through the upper end of the fixed box 311 and is rotatably connected with it. The cam 313 is located in the cavity of the fixed box 311 and one end of the cam 313 is connected with the driving shaft 312. The sliding rod 315 vertically passes through the lower end of the fixed box 311 and is slidably connected with it up and down. One end of the connecting rod 314 is rotatably connected with one end of the cam 313. The other end of the connecting rod 314 is rotatably connected with the top end of the sliding rod 315. There are two first springs 316. The two first springs 316 are symmetrically arranged on both sides of the sliding rod 315 and the top ends of the two first springs 316 are both connected with the lower end of the inner side of the fixed box 311. The sliding rod 315 is flush with the bottom ends of the two first springs 316. The top of the mounting box 33 is connected with the bottom of the sliding rod 315 and the bottom of the two first springs 316;

[0038] The driving switching component 32 includes a first gear 321, a driving motor 322, a sliding frame 323, a second gear 324, a switching gear 325, a switching frame 326, a first bevel gear 327 and a second bevel gear 328. The first gear 321 is arranged at one end of the driving shaft 312. The sliding frame 323 is arranged at the upper end of one side of the fixed box 311. The driving motor 322 is arranged at the side end of the fixed box 311. The second gear 324 is arranged on the output end of the driving motor 322. The switching gear 325 is slidably connected to the sliding frame 323 through a connecting piece, and the switching gear 325 is rotatably connected to the connecting piece. The second gear 324 meshes with the switching gear 325. The switching frame 326 is arranged at the lower end of one side of the fixed box 311. The first bevel gear 327 is vertically and rotatably arranged at one side of the switching frame 326. The second bevel gear 328 is horizontally and rotatably connected to the lower end of the switching frame 326. The first bevel gear 327 meshes with the second bevel gear 328. The switching gear 325 is pre-meshed with the first gear 321 and the first bevel gear 327;

[0039] When it is necessary to control the soil collection cylinder 51 to penetrate deep into the ground, first control the driving motor 322 to work, drive the second gear 324 to rotate counterclockwise, and then drive the switching gear 325 to slide on the sliding frame 323 in the direction of the first gear 321 and mesh with it, thereby driving the first gear 321 to rotate. During the rotation process, drive the driving shaft 312 to continuously rotate, thereby driving the cam 313 to continuously perform circular motion, thereby driving the sliding rod 315 to continuously perform reciprocating up and down motion, and under the action of the first spring 316, quickly reset, so as to drive the installation box 33, the earth drilling rod 4 and the soil collection rod to move up and down at high speed to achieve the effect of high-frequency vibration, so as to achieve the effect that the soil collection cylinder 51 penetrates into the ground more efficiently and reaches the specified depth to complete soil collection.

[0040] In this embodiment, as Figure 11 shown, a mounting hole 331 is provided in the middle of the bottom of the mounting box 33, and a second spring 332 is vertically provided at the top inside the mounting hole 331;

[0041] By providing the mounting hole 331 at the bottom of the mounting box 33, it is convenient to quickly and conveniently detachably connect the top of the earth drilling rod 4 to the bottom of the mounting box 33, and through the second spring 332, it is convenient to buffer the vibration force generated by the vibration component 31 during the process of soil collection and earth drilling, thereby improving the service life of the equipment.

[0042] In this embodiment, as Figures 4 to 8As shown, the soil pushing component 53 includes a rotating shaft 531, a third bevel gear 532, a fourth bevel gear 533, a fifth bevel gear 534, a toothed groove plate 535 and a soil pushing plate 536. A rotating shaft 531 is provided at the rotating connection of the soil taking cylinder 51 and the closing flap 52. A cavity is provided inside one end of the soil taking cylinder 51 close to the earth drilling rod 4. A third bevel gear 532 is provided at one end of the rotating shaft 531. The upper and lower ends of the third bevel gear 532 are symmetrically provided with a fourth bevel gear 533 and a fifth bevel gear 534. The fourth bevel gear 533 and the fifth bevel gear 534 are coaxial and rotatably connected inside the cavity, and both the fourth bevel gear 533 and the fifth bevel gear 534 are meshed with the third bevel gear 532. The toothed groove plate 535 is arranged inside the cavity and is horizontally slidably connected with the inner side wall of the soil taking cylinder 51. The soil pushing plate 536 is arranged at one end of the soil taking cylinder 51 close to the earth drilling rod 4 and closes the end of the soil taking cylinder 51. One side of the soil pushing plate 536 is slidably connected with one side inside the soil taking cylinder 51. The other side of the soil pushing plate 536 passes through the side wall of the soil taking cylinder 51 and is connected with the toothed groove plate 535. An opening for the sliding of the soil pushing plate 536 is provided on the side wall of the soil taking cylinder 51, and a sealing soft curtain for closing the opening is provided at the opening, and both ends of the sealing soft curtain are respectively connected with the side end of the soil pushing plate 536 and the side end of the opening;

[0043] After the soil taking cylinder 51 finishes taking soil and leaves the ground, a bucket marked with the soil taking depth is placed at the bottom of the soil taking cylinder 51. The closing flap 52 is turned over to one side, driving the rotating shaft 531 to rotate, and then driving the third bevel gear 532 to rotate, thereby driving the fourth bevel gear 533 and the fifth bevel gear 534 to rotate counterclockwise, so that the toothed groove plate 535 slides towards the direction close to the bottom of the soil taking cylinder 51, and then driving the soil pushing plate 536 to slide synchronously towards the direction close to the bottom of the soil taking cylinder 51, so as to push out the sampled soil inside the soil taking cylinder 51 and drop it into the bucket. There is no need for manual soil taking, and with the high-frequency vibration of the vibration component 31 as an auxiliary, the soil inside the soil taking cylinder 51 completely enters the bucket, which is convenient, fast, time-saving and labor-saving.

[0044] In this embodiment, as Figure 5 shown, one end of the closing flap 52 in contact with the soil taking cylinder 51 is provided with a mutually fitting convex part and concave part, and the convex part and the concave part are magnetically connected to each other;

[0045] By providing a convex part and a concave part with magnetic connection at one end of the closing flap 52 in contact with the soil taking cylinder 51, the connection between the closing flap 52 and the soil taking cylinder 51 is relatively stable during the soil taking operation to avoid the problem of soil leakage during the soil taking process.

[0046] In this embodiment, as Figure 9As shown, the installation component 6 includes a connecting shaft 61, a third gear 62, and a fourth gear 63. The connecting shaft 61 is vertically arranged at the rotation connection of the second bevel gear 328 and the switching frame 326. The third gear 62 is arranged at the lower end of the connecting shaft 61. The fourth gear 63 is arranged at the top end of the earth drilling rod 4, and the third gear 62 meshes with the fourth gear 63.

[0047] When it is necessary to connect the earth drilling rod 4 with the soil sampling cylinder 51, first dock the bottom of the earth drilling rod 4 with the top of the soil sampling cylinder 51. Then, control the driving motor 322 to work, drive the second gear 324 to rotate clockwise, drive the switching gear 325 to disengage from the first gear 321 and mesh with the first bevel gear 327, and then drive the second bevel gear 328 and the connecting shaft 61 to rotate. While rotating, drive the third gear 62 to rotate, and then drive the meshing fourth gear 63 to rotate, thereby driving the earth drilling rod 4 to rotate, so that the bottom of the earth drilling rod 4 is threadedly connected to the top of the soil sampling cylinder 51 during the rotation process, thus realizing the automatic installation work.

[0048] The usage method and advantages of the present invention: The usage method of the soil sampling device for land detection is as follows:

[0049] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 shown:

[0050] S1: When the device is in use, first detachably connect the top end of the earth drilling rod 4 corresponding to the sampling depth to the bottom end of the vibration component 31. After the bottom end of the earth drilling rod 4 is threadedly connected to the top end of the soil sampling cylinder 51, place the soil sampling cylinder 51 vertically on the ground, and the bottom of the soil sampling cylinder 51 contacts the ground.

[0051] S2: Control the driving and switching component 32 to work and switch the driving source to the vibration component 31 to drive the earth drilling rod 4 and the soil sampling cylinder 51 to generate high-frequency vibration. During the vibration process, hold the mounting plate 2 vertically downward so that the soil sampling cylinder 51 penetrates into the ground and reaches the specified depth to complete soil sampling.

[0052] S3: After the soil sampling is completed, pull up the mounting plate 2 to separate the soil sampling cylinder 51 from the ground. Then, place a bucket marked with the sampling depth directly below the soil sampling cylinder 51. Flip the closing flap 52 to one side to open the sampling chamber, and simultaneously activate the earth-pushing assembly 53 to push the sampled soil inside the soil sampling cylinder 51 into the bucket. With the assistance of the high-frequency vibration of the vibration assembly 31, ensure that all the soil inside the soil sampling cylinder 51 enters the bucket completely;

[0053] S4: After taking out the sampled soil, when it is necessary to sample the soil at a deeper depth underground, control the vibration assembly 31 to stop working. First, rotate and remove the drilling rod 4. Then, detachably connect the top of the corresponding length of the drilling rod 4 to the bottom of the vibration assembly 31, and dock the bottom of the drilling rod 4 with the top of the soil sampling cylinder 51. Next, switch the drive source to the mounting assembly 6 through the drive switching assembly 32 to automatically install the drilling rod 4 and the soil sampling cylinder 51 by means of threaded connection. After the installation is completed, repeat the above operations to conduct soil sampling operations at deeper levels underground.

[0054] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for land detection, characterized in that: The invention comprises a limit rod (1), wherein two limit rods (1) are provided, the two limit rods (1) are symmetrically and vertically arranged on the ground, a mounting plate (2) is horizontally arranged on the top of the two limit rods (1), the mounting plate (2) passes through the top of the two limit rods (1) and is slidably connected thereto up and down, a driving ground drilling device (3) is arranged at the bottom of the mounting plate (2), the driving ground drilling device (3) comprises a vibration component (31), a driving switching component (32) and an installation box (33), the vibration component (31) is arranged at the bottom of the installation plate (2), the driving switching component (32) is arranged at the side end of the vibration component (31), the installation box (33) is arranged at the bottom of the vibration component (31), and a ground drilling rod (4) is vertically and detachably arranged at the bottom of the installation box (33). ), the bottom of the drilling rod (4) is closed, a sampling device (5) is vertically arranged at the bottom of the drilling rod (4), the sampling device (5) comprises a soil sampling barrel (51), a closed flap (52) and an open bulldozer assembly (53), the top of the soil sampling barrel (51) is connected to the bottom of the drilling rod (4) by a thread, one side of the lower end of the soil sampling barrel (51) is rotatably connected to one side of the closed flap (52), the soil sampling barrel (51) and the closed flap (52) form a complete cylinder, and a sampling cavity is provided inside the soil sampling barrel (51) and the closed flap (52), the open bulldozer assembly (53) is provided at the rotation connection between the soil sampling barrel (51) and the closed flap (52), and a mounting assembly (6) is provided at the top of the drilling rod (4) and the side end of the vibration assembly (31); The vibration assembly (31) comprises a fixed box (311), a drive shaft (312), a cam (313), a connecting rod (314), a sliding rod (315) and a first spring (316); the fixed box (311) is arranged at the bottom of the mounting plate (2); a cavity is provided in the middle of the inner side of the fixed box (311); the driving shaft (312) horizontally passes through the upper end of the fixed box (311) and is rotatably connected thereto; the cam (313) is located in the cavity of the fixed box (311) and one end of the cam (313) is connected to the driving shaft (312); the sliding rod (315) vertically passes through the lower end of the fixed box (311) and is connected to the first spring (316); It is slidably connected up and down, one end of the connecting rod (314) is rotatably connected to one end of the cam (313), the other end of the connecting rod (314) is rotatably connected to the top end of the sliding rod (315), two first springs (316) are provided, the two first springs (316) are symmetrically arranged on both sides of the sliding rod (315), and the top ends of the two first springs (316) are connected to the lower end of the inner side of the fixed box (311), the sliding rod (315) is flush with the bottom ends of the two first springs (316), and the top of the installation box (33) is connected to the bottom of the sliding rod (315) and the bottoms of the two first springs (316); The drive switching assembly (32) comprises a first gear (321), a drive motor (322), a sliding frame (323), a second gear (324), a switching gear (325), a switching frame (326), a first bevel gear (327) and a second bevel gear (328), wherein the first gear (321) is arranged at one end of the drive shaft (312), the sliding frame (323) is arranged at an upper end of one side of the fixed box (311), the drive motor (322) is arranged at a side end of the fixed box (311), the second gear (324) is arranged at an output end of the drive motor (322), and the switching gear (325) is connected to the switching frame (326). The switching gear (325) is slidably connected to the sliding frame (323) through a connecting member, and the switching gear (325) is rotatably connected to the connecting member, the second gear (324) is meshed with the switching gear (325), the switching frame (326) is arranged at the lower end of one side of the fixed box (311), the first bevel gear (327) is vertically and rotatably arranged on one side of the switching frame (326), the second bevel gear (328) is horizontally and rotatably connected to the lower end of the switching frame (326), the first bevel gear (327) is meshed with the second bevel gear (328), and the switching gear (325) is pre-meshed with the first gear (321) and the first bevel gear (327); A mounting hole (331) is provided in the middle of the bottom of the mounting box (33), and a second spring (332) is vertically provided at the top of the inner side of the mounting hole (331); The open bulldozer assembly (53) comprises a rotating shaft (531), a third bevel gear (532), a fourth bevel gear (533), a fifth bevel gear (534), a toothed plate (535) and a bulldozer plate (536); a rotating shaft (531) is provided at a rotationally connected portion between the soil taking barrel (51) and the closed flap (52); a cavity is provided on the inner side of one end of the soil taking barrel (51) close to the ground boring rod (4); a third bevel gear (532) is provided at one end of the rotating shaft (531); a fourth bevel gear (533) and a fifth bevel gear (534) are symmetrically provided at the upper and lower ends of the third bevel gear (532); the fourth bevel gear (533) and the fifth bevel gear (534) are coaxial and rotationally connected inside the cavity; and the fourth bevel gear (533) and the fifth bevel gear (534) are coaxial and rotationally connected inside the cavity. The bevel gears (534) are meshed with the third bevel gear (532); the toothed plate (535) is arranged in the cavity and is slidably connected to the inner side wall of the soil collecting barrel (51) in the horizontal direction; the bulldozer (536) is arranged at one end of the soil collecting barrel (51) close to the earth boring rod (4) and closes the end of the soil collecting barrel (51); one side of the bulldozer (536) is slidably connected to one side inside the soil collecting barrel (51); the other side of the bulldozer (536) passes through the side wall of the soil collecting barrel (51) and is connected to the toothed plate (535); the side wall of the soil collecting barrel (51) is provided with an opening for the bulldozer (536) to slide, and a sealing soft curtain for closing the opening is provided at the opening, and two ends of the sealing soft curtain are respectively connected to the side end of the bulldozer (536) and the side end of the opening.

2. A sampling device for land detection according to claim 1, characterized in that: One end of the closed flap (52) that contacts the soil taking tube (51) is provided with a convex portion and a concave portion that fit together, and the convex portion and the concave portion are magnetically connected to each other.

3. A sampling device for land detection according to claim 2, characterized in that: The mounting assembly (6) comprises a connecting shaft (61), a third gear (62) and a fourth gear (63); the connecting shaft (61) is vertically arranged at a rotational connection between the second bevel gear (328) and the switching frame (326); the third gear (62) is arranged at the lower end of the connecting shaft (61); the fourth gear (63) is arranged at the top end of the drilling rod (4) and the third gear (62) is meshed with the fourth gear (63).

4. The method for using the sampling device for land detection according to claim 1 comprises the following steps: S1: When the device is used, the top end of the drilling rod (4) corresponding to the sampling depth is first detachably connected to the bottom end of the vibration assembly (31), and the bottom end of the drilling rod (4) is threadedly connected to the top end of the soil sampling tube (51), and then the soil sampling tube (51) is vertically placed on the ground, and the bottom of the soil sampling tube (51) is in contact with the ground; S2: Controlling the drive switching component (32) to work and switching the drive source to the vibration component (31) to drive the drilling rod (4) and the soil collecting tube (51) to generate high-frequency vibration. During the vibration process, the mounting plate (2) is held vertically downward, so that the soil collecting tube (51) penetrates into the ground and penetrates to a specified depth to complete soil collection; S3: After the soil sampling is completed, the mounting plate (2) is pulled upwards to make the soil sampling cylinder (51) separate from the ground, and then a bucket marked with the soil sampling depth is placed directly below the soil sampling cylinder (51). The closed flap (52) is flipped to one side to open the sampling chamber, and the pusher assembly (53) is opened to push the sampled soil inside the soil sampling cylinder (51) into the interior of the bucket, and the high-frequency vibration of the vibration assembly (31) is used to assist, so that the soil inside the soil sampling cylinder (51) completely enters the interior of the bucket; S4: After taking out the sampled soil, when it is necessary to take soil from a deeper underground depth, the vibration component (31) is controlled to stop working, and the drilling rod (4) is first rotated to take out the drilling rod (4), and then the top of the drilling rod (4) of a corresponding length is detachably connected to the bottom of the vibration component (31), and the bottom of the drilling rod (4) is docked with the top of the soil taking barrel (51), and then the driving source is switched to the installation component (6) through the driving switching component (32), so that the drilling rod (4) and the soil taking barrel (51) are automatically threadedly connected. After the installation is completed, the above operation is repeated to carry out the soil taking operation at a deeper level.

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