Sampling device and method for land detection

Abstract

The invention relates to the technical field of land detection sampling equipment. The sampling device comprises two limiting rods, 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, and the mounting plate penetrates through the tops of the two limiting rods and is connected with the tops of the two limiting rods in an up-down sliding mode; a driving drilling device is arranged at the bottom of the mounting plate, the driving drilling device comprises 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; according to the device, a soil sample in the soil sampling barrel can be easily and conveniently taken out after soil sampling is completed, and manual operation is saved as much as possible when the soil sampling barrel and the earth drilling rod are replaced or installed, so that the effect of improving the sampling efficiency is achieved.

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 Art

[0002] Land quality refers to the ability to maintain ecosystem productivity and plant and animal health without soil degradation and other ecological and environmental problems, including soil, water and biological characteristics related to human needs, and is related to land environmental conditions for production, protection and environmental management. With the increasing population pressure on land resources and the irrational use of land by humans, land degradation has seriously threatened global land resources. Therefore, when using land for planting and construction, it is necessary to test the organic matter content, pH, humidity and other factors in the soil. Soil testing often uses sampling devices to sample the soil;

[0003] The traditional sampling method is to drill a soil sampling barrel into the ground by manpower. During the drilling process, soil enters the soil sampling barrel. After the sampling is completed, the soil sampling barrel is pulled out from the ground, and the soil inside the soil sampling barrel is pushed out and collected by manpower to complete the sampling. This method is time-consuming, labor-intensive and cumbersome to operate. In the sampling process, it is often necessary to sample underground areas of different depths. For different depths, a drilling rod of corresponding length needs to be connected to the top of the soil sampling barrel to facilitate the soil sampling barrel to go deeper underground for sampling. However, the installation of the soil sampling barrel and the drilling rod often requires the cooperation of multiple people for assembly, thereby reducing the soil sampling efficiency. There is a lack of a device that can easily and conveniently remove the soil sample inside the soil sampling barrel after the soil sampling is completed, and save manual operation as much as possible when replacing or installing the soil sampling barrel and the drilling rod, thereby improving the sampling efficiency. Summary of the invention

[0004] The object of the present invention is to provide a sampling device and method for land detection, so as to solve the problems raised in the above-mentioned background technology. In order to achieve the above-mentioned object, the present invention provides the following technical solutions: including a limit rod, wherein two limit rods are provided, and the two limit rods are symmetrically and vertically arranged on the ground, and a mounting plate is horizontally arranged on the top of the two limit rods, and the mounting plate passes through the top of the two limit rods and is connected with the two limit rods by sliding up and down, and a driving drilling device is arranged at the bottom of the mounting plate, and the driving drilling device includes a vibration component, a driving switching component and an installation box, and the vibration component is arranged at the bottom of the installation plate, and the driving switching component is arranged at the side end of the vibration component, and the installation box is arranged at the bottom of the vibration component, and the bottom of the installation box A drilling rod is vertically and detachably arranged at the bottom, and the bottom of the drilling rod is closed. A sampling device is vertically arranged at the bottom of the drilling rod, and the sampling device includes a soil sampling barrel, a closed flap and an open bulldozer assembly. The top of the soil sampling barrel is connected to the bottom of the drilling rod by a thread, and one side of the lower end of the soil sampling barrel is rotatably connected to one side of the closed flap. The soil sampling barrel and the closed flap form a complete cylinder, and a sampling cavity is arranged inside the soil sampling barrel and the closed flap. An open bulldozer assembly is arranged at the rotating connection between the soil sampling barrel and the closed flap, and an installation assembly is arranged at the top of the drilling rod and the side end of the vibration assembly.

[0005] Preferably, the vibration assembly 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 part 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 thereto, 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 thereto 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, two first springs are provided, the two first springs are symmetrically arranged on both sides of the sliding rod and the top ends of the two first springs are 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, and 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 drive switching assembly includes a first gear, a drive 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 drive shaft, the sliding frame is arranged at the upper end of one side of the fixed box, the drive motor is arranged at the side end of the fixed box, the second gear is arranged on the output end of the drive 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 is meshed 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 is meshed with the second bevel gear, and 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 open bulldozer assembly comprises a rotating shaft, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a toothed plate and a bulldozer plate, a rotating shaft is provided at the rotating connection between the soil taking barrel and the closed flap, a cavity is provided on the inner side of one end of the soil taking barrel close to the drilling rod, a third bevel gear is provided at one end of the rotating shaft, a fourth bevel gear and a fifth bevel gear are symmetrically provided at the upper and lower ends of the third bevel gear, the fourth bevel gear and the fifth bevel gear are coaxial and rotatably connected inside the cavity, and the fourth bevel gear and the fifth bevel gear are both connected to the third bevel gear The wheels are meshed, the toothed plate is arranged in the cavity and is slidably connected with the inner wall of the soil-taking barrel in the horizontal direction, the bulldozer is arranged at one end of the soil-taking barrel close to the drilling rod and closes the end of the soil-taking barrel, one side of the bulldozer is slidably connected with one side inside the soil-taking barrel, and the other side of the bulldozer passes through the side wall of the soil-taking barrel and is connected with the toothed plate, the side wall of the soil-taking barrel is provided with an opening for the bulldozer to slide, and a sealing soft curtain for closing the opening is provided at the opening, and the two ends of the sealing soft curtain are respectively connected with the side end of the bulldozer plate and the side end of the opening.

[0009] Preferably, the end of the closed flap that contacts the soil-taking barrel is provided with a protruding portion and a recessed portion that fit together, and the protruding portion and the recessed portion are magnetically connected to each other.

[0010] Preferably, the mounting assembly includes a connecting shaft, a third gear and a fourth gear, the connecting shaft is vertically arranged at the rotation connection between 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 drilling rod and the third gear is meshed with the fourth gear.

[0011] Preferably, the method for using the sampling device for land detection comprises 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 taking barrel has completed soil taking and left the ground, a bucket marked with the soil taking depth is placed at the bottom of the soil taking barrel, and the closed flap is flipped to one side, driving the rotating 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, so that the tooth plate slides in the direction close to the bottom of the soil taking barrel, and then driving the bulldozer to slide in the direction close to the bottom of the soil taking barrel synchronously, so that the sampled soil inside the soil taking barrel is pushed out and falls into the bucket, without manual soil taking, and assisted by the high-frequency vibration of the vibration component, the soil inside the soil taking barrel can completely enter the bucket, which is convenient, fast, time-saving and labor-saving.

[0019] In the present invention, when it is necessary to connect the drilling rod and the soil barrel together, firstly, the bottom of the drilling rod is connected to the top of the soil barrel, and then the driving motor is controlled to drive the second gear to rotate clockwise, drive the switching gear to disengage from the first gear and mesh with the first bevel gear, and then drive the second bevel gear and the connecting shaft to rotate, and at the same time drive the third gear to rotate, and then drive the fourth gear meshed with it 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 barrel during the rotation, thereby realizing automated installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

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

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

[0023] Figure 4 The three-dimensional structure of the sampling device in the present invention is shown in FIG. Figure 1 ;

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

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the bulldozer assembly in the present invention;

[0026] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0027] Figure 8 The three-dimensional structure of the sampling device in the present invention is shown in FIG. Figure 2 ;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the driving earth-drilling device and the earth-drilling rod in the present invention;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the driving earth drilling device in the present invention;

[0030] Fig.11 It is a cross-sectional view of the driving earth-drilling device in the present invention;

[0031] Fig.12 It is a schematic diagram of the local structure of the vibration component in the present invention;

[0032] Fig.13 It is a schematic diagram of the three-dimensional structure of the vibration component and the drive switching component in the present invention;

[0033] Fig.14 for Fig.13 Enlarged view of point B in the middle.

[0034] In the figure: 1, limit rod; 2, mounting plate; 3, driving drilling device; 31, vibration assembly; 311, fixing 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; 32 8. Second bevel gear; 33. Mounting box; 331. Mounting hole; 332. Second spring; 4. Boring rod; 5. Sampling device; 51. Soil sampling tube; 52. Closing flap; 53. Open bulldozer assembly; 531. Rotating shaft; 532. Third bevel gear; 533. Fourth bevel gear; 534. Fifth bevel gear; 535. Tooth plate; 536. Bulldozer plate; 6. Mounting assembly; 61. Connecting shaft; 62. Third gear; 63. Fourth gear. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 14The present invention provides a technical solution: comprising a limit rod 1, wherein two limit rods 1 are provided, wherein the two limit rods 1 are symmetrically and vertically arranged on the ground, wherein a mounting plate 2 is horizontally arranged on the top of the two limit rods 1, wherein the mounting plate 2 passes through the top of the two limit rods 1 and is slidably connected thereto up and down, wherein a driving drilling device 3 is arranged at the bottom of the mounting plate 2, wherein the driving drilling device 3 comprises a vibration component 31, a driving switching component 32 and an installation box 33, wherein the vibration component 31 is arranged at the bottom of the installation plate 2, wherein the driving switching component 32 is arranged at the side end of the vibration component 31, wherein the installation box 33 is arranged at the bottom of the vibration component 31, and wherein the bottom of the installation box 33 is vertical and detachable A drilling rod 4 is provided, the bottom of the drilling rod 4 is closed, and a sampling device 5 is vertically provided at the bottom of the drilling rod 4, and the sampling device 5 includes 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 threads, and 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.

[0037] In this embodiment, Figures 9 to 14 As shown, the vibration assembly 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 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 rotatably connected thereto. The first spring 316 is provided with two, and 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, and 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 bottom of the two first springs 316;

[0038] The drive switching assembly 32 includes 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. The first gear 321 is arranged at one end of the drive shaft 312, the sliding frame 323 is arranged at the upper end of one side of the fixed box 311, the drive 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 drive motor 322, and the switching gear 325 is connected to the first bevel gear 327. The member is slidably connected to the sliding frame 323, 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 set at the lower end of one side of the fixed box 311, the first bevel gear 327 is vertically and rotatably set 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;

[0039] When it is necessary to control the soil taking barrel 51 to go deep into the ground, first control the driving motor 322 to drive the second gear 324 to rotate counterclockwise, thereby driving the switching gear 325 to slide on the sliding frame 323 in the direction of the first gear 321 and engage with it, thereby driving the first gear 321 to rotate. During the rotation, the driving shaft 312 is driven to rotate continuously, thereby driving the cam 313 to continue to perform a circular motion, thereby driving the sliding rod 315 to continue to perform an up and down reciprocating motion, and reset at high speed under the action of the first spring 316, thereby driving the installation box 33, the drilling rod 4 and the soil taking rod to move up and down at a high speed to achieve the effect of high-frequency vibration, thereby achieving the effect of the soil taking barrel 51 going deep into the ground more efficiently and reaching the specified depth to complete the soil taking effect.

[0040] In this embodiment, Fig.11 As 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 setting a mounting hole 331 at the bottom of the mounting box 33, the top of the drilling rod 4 can be quickly and conveniently detachably connected to the bottom of the mounting box 33, and the second spring 332 can be used to buffer the vibration force generated by the vibration component 31 during the process of soil excavation and drilling, thereby improving the service life of the equipment.

[0042] In this embodiment, Figures 4 to 8As shown, the open bulldozer assembly 53 includes 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. The rotating connection between the soil taking barrel 51 and the closed flap 52 is provided with a rotating shaft 531. The inner side of one end of the soil taking barrel 51 close to the drilling rod 4 is provided with a cavity. One end of the rotating shaft 531 is provided with a third bevel gear 532. 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 the fourth bevel gear 533 and the fifth bevel gear 534 are coaxial and rotatably connected inside the cavity. The wheels 534 are all meshed with the third bevel gear 532, the toothed plate 535 is arranged in the cavity and is slidably connected with the inner 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 drilling rod 4 and closes the end of the soil collecting barrel 51, one side of the bulldozer 536 is slidably connected with one side inside the soil collecting barrel 51, and the other side of the bulldozer 536 passes through the side wall of the soil collecting barrel 51 and is connected with 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 the two ends of the sealing soft curtain are respectively connected with the side end of the bulldozer 536 and the side end of the opening;

[0043] After the soil collecting barrel 51 has completed soil collecting and has left the ground, a bucket marked with the soil collecting depth is placed at the bottom of the soil collecting barrel 51, and the closed flap 52 is flipped 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 tooth plate 535 slides in the direction close to the bottom of the soil collecting barrel 51, and then driving the bulldozer 536 to slide synchronously in the direction close to the bottom of the soil collecting barrel 51, so that the sampled soil inside the soil collecting barrel 51 is pushed out and falls into the bucket, without manual soil collecting, and assisted by the high-frequency vibration of the vibration component 31, the soil inside the soil collecting barrel 51 can be completely entered into the bucket, which is convenient, fast, time-saving and labor-saving.

[0044] In this embodiment, Figure 5 As shown, the 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;

[0045] By providing a magnetically connected protrusion and depression at one end where the closed flap 52 and the soil collecting barrel 51 contact each other, the connection between the closed flap 52 and the soil collecting barrel 51 is more stable during the soil collecting operation to avoid soil leakage during the soil collecting process.

[0046] In this embodiment, Fig. 9As shown, the mounting assembly 6 includes a connecting shaft 61, a third gear 62 and a fourth gear 63, wherein the connecting shaft 61 is vertically arranged at the rotation 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, and 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;

[0047] When it is necessary to connect the drilling rod 4 with the soil barrel 51, firstly dock the bottom of the drilling rod 4 with the top of the soil barrel 51, then control the driving motor 322 to drive the second gear 324 to rotate clockwise, drive the switching gear 325 to disengage 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, and at the same time drive the third gear 62 to rotate, and then drive the fourth gear 63 meshed with it to rotate, thereby driving the drilling rod 4 to rotate, so that the bottom of the drilling rod 4 is threadedly connected to the top of the soil barrel 51 during the rotation, thereby realizing automated installation.

[0048] The use method and advantages of the present invention: The use method of the sampling device for land detection, the working process is as follows:

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

[0050] S1: When the device is used, the top end of the drilling rod 4 corresponding to the sampling depth is 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;

[0051] S2: Control the drive switching assembly 32 to work and switch the drive source to the vibration assembly 31 to drive the drilling rod 4 and the soil extraction tube 51 to generate high-frequency vibration. During the vibration process, hold the mounting plate 2 vertically downward to make the soil extraction tube 51 penetrate into the ground and penetrate to the specified depth to complete soil extraction;

[0052] S3: After the soil sampling is completed, the mounting plate 2 is pulled upward to make the soil sampling tube 51 separate from the ground, and then a bucket marked with the soil sampling depth is placed directly below the soil sampling tube 51, and 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 tube 51 into the inside of the bucket, and with the assistance of the high-frequency vibration of the vibration assembly 31, the soil inside the soil sampling tube 51 completely enters the inside of the bucket;

[0053] 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 remove it, and then the top of the drilling rod 4 of the 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 sampling tube 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 sampling tube 51 are automatically threadedly connected for installation. After the installation is completed, the above operation is repeated to carry out deeper underground soil sampling operations.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions 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 may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached 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, and 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 the bottom of the installation box (33) is vertically and detachably provided with a ground drilling rod (4 ), 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 threads, 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 arranged inside the soil sampling barrel (51) and the closed flap (52), the open bulldozer assembly (53) is arranged at the rotation connection between the soil sampling barrel (51) and the closed flap (52), and a mounting assembly (6) is arranged at the top of the drilling rod (4) and the side end of the vibration assembly (31).

2. A sampling device for land detection according to claim 1, characterized in that: The vibration assembly (31) comprises 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 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 rotatably connected thereto; It is slidably connected up and down, one end of the connecting rod (314) is rotatably connected to one end of the cam (313), and 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, and 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).

3. A sampling device for land detection according to claim 2, characterized in that: 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 the 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).

4. A sampling device for land detection according to claim 3, characterized in that: 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).

5. A sampling device for land detection according to claim 4, characterized in that: 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 rotating connection 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 drilling 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 rotatably connected inside the cavity; and the fourth bevel gear (533) and the fifth bevel gear (534) are coaxial and rotatably 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 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 ground 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 the 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.

6. A sampling device for land detection according to claim 5, 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.

7. A sampling device for land detection according to claim 6, 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 the rotation 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).

8. 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: Control the drive switching component (32) to work and switch the drive source to the vibration component (31) to drive the drilling rod (4) and the soil extraction tube (51) to generate high-frequency vibration. During the vibration process, the mounting plate (2) is held vertically downward, so that the soil extraction tube (51) penetrates into the ground and penetrates to a specified depth to complete soil extraction; S3: After the soil sampling is completed, the mounting plate (2) is pulled upwards to make the soil sampling tube (51) separate from the ground, and then a bucket marked with the soil sampling depth is placed directly below the soil sampling tube (51), and 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 tube (51) into the inside of the bucket, and with the assistance of the high-frequency vibration of the vibration assembly (31), the soil inside the soil sampling tube (51) completely enters the inside 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 down, and then the top of the drilling rod (4) of the 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 tube (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 tube (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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