Deep soil sampling equipment for environment detection
By designing a stable structure, including rectangular brackets, leveling feet, limiting rods and fixtures, the problem of easy deflection of the soil sampling drill rig is solved, and the vertical force and automatic pulling of the drilling sampling tube is realized, which improves sampling stability and convenience.
Patent Information
- Application Number
- CN202510092705.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-03-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing soil sampling drills are prone to deflection when used, resulting in inclination, damage to the drilling sampling tube and inaccurate sampling depth.
A stable structure including a rectangular bracket structure, leveling feet, limiting rod and fixture is designed. The vertical state of the soil sampling drill rig is realized through the leveling feet and limiting rod, and the drilling sampling tube is automatically pulled out through the lifting structure and fixture.
Ensure that the soil sampling drill rig is always in a vertical state, avoid damage to the drilling sampling tube and sampling depth deviation, and improve sampling stability and convenience.
Smart Images

Figure CN119595356A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of soil sampling equipment, and more specifically to a deep soil sampling equipment for environmental detection. Background Art
[0002] In environmental testing work, the analysis of deep soil is crucial, and it is extremely important to obtain representative soil samples that retain their original characteristics. At this time, soil sampling equipment is needed, that is, a soil sampling drill, which consists of a gasoline-driven engine and a drilling sampling tube.
[0003] When using the existing soil sampling drill, a person usually holds the handheld frame of the soil sampling drill, and then the gasoline-driven engine works to generate impact force, thereby pushing the drilling sampling tube into the deep soil to complete the sampling of the deep soil. In this process, it is difficult to ensure the verticality of the equipment when the person holds the equipment, and it is easy to deflect, which will cause the drilling sampling tube to tilt and extend into the soil. On the one hand, it is easy to cause damage and deformation of the drilling sampling tube, and on the other hand, it is easy to cause deviation in the depth of soil sampling, affecting the subsequent detection effect. In view of this, we propose a deep soil sampling equipment for environmental testing. Summary of the invention
[0004] The purpose of the present invention is to provide a deep soil sampling device for environmental detection, so as to solve the technical problem that the current soil sampling drill is prone to deflection during operation.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a deep soil sampling device for environmental detection, comprising a soil sampling drill, a stable structure is arranged below the soil sampling drill, the stable structure comprises a rectangular support structure, leveling feet are arranged at the four corners of the bottom of the rectangular support structure, a lower limit structure is arranged at the bottom of the rectangular support structure, mounting plates are arranged on both sides of the top of the rectangular support structure, a limit rod is movably arranged at the center of the top of the mounting plate, and the limit rod passes through the handheld frame of the soil sampling drill;
[0006] The rectangular support structure includes a bottom rectangular frame and a top rectangular frame, the bottom rectangular frame is located below the top rectangular frame, lifting structures are arranged between the four sides of the top rectangular frame and the bottom rectangular frame, a clamp is placed in the center of the top of the lower limiting structure, a steel wire rope is arranged in the center of the front and back of the top of the lifting structure, and the free end of the steel wire rope is connected to the clamp.
[0007] The present invention adopts a designed stable structure. When the soil sampling drill is working, the stable structure can be placed in advance, and then the rectangular bracket structure is leveled by the leveling feet. Then, two sets of limit rods are passed through the handheld frame of the soil sampling drill and connected and fixed with the mounting plate, and the drilling sampling tube of the soil sampling drill is passed through the limit hole of the lower limit structure. At this time, the upper and lower parts of the soil sampling drill can be stably limited at the same time, ensuring that the soil sampling drill can always be in a vertical state when working, so that the soil sampling drill can push the drilling sampling tube vertically into the soil, which can ensure the drilling The sampling tube is always in a vertical stress state, and the drilling sampling tube is not easy to be damaged and deformed. Secondly, it can avoid the situation that the sampling depth is inaccurate due to the tilted sampling of the drilling sampling tube; the rectangular support structure of the present invention is composed of a bottom rectangular frame, a top rectangular frame and a lifting structure, and a clamp is arranged on the top rectangular frame through a steel wire rope, and the drilling sampling tube of the soil sampling drill passes through the clamp. Therefore, with the cooperation of the lifting structure, the rectangular support structure is ensured not to be too high, and the top rectangular frame can be lifted and lowered to a large extent, and then the steel wire rope and the clamp are fixed during the rising process. With the cooperation of the two, the drilling sampling tube of the soil sampling drill can be driven to rise synchronously, so that the drilling sampling tube deep into the soil can be automatically pulled out, further improving the convenience of sampling; the clamp of the present invention is composed of a connecting plate and a T-bar, and clamping grooves are arranged at the opposite ends of the two groups of T-bars. The clamping grooves are arranged in an arc shape, and the curvature of the clamping grooves increases from top to bottom. After the two groups of T-bars are placed horizontally, the circle formed by the central arc surfaces of the two groups of clamping grooves has the same diameter as the drilling sampling tube of the soil sampling drill, and the wire rope is guided by the guide plate and connected to the T-bar in a V shape. Therefore, at the top When the clamp is driven to rise by the steel wire rope by the lower rectangular frame, the two groups of T-bars rotate upward, and then the two groups of T-bars will be V-shaped. At this time, the gradually decreasing arc surface above the T-bar clamping groove will clamp and fix the drilling sampling tube. Therefore, when the clamp is driven to rise by the steel wire rope by the top rectangular frame, the clamp can automatically achieve the clamping effect on the drilling sampling tube, and when the top rectangular frame descends, the gradually increasing arc surface below the T-bar clamping groove will lose the clamping effect on the drilling sampling tube, so that the clamp can slide down smoothly and automatically, further improving the convenience of pulling out the drilling sampling tube deep in the soil.
[0008] Preferably, support blocks are arranged at the four bottom corners of the top rectangular frame, the support blocks are supported on the top of the bottom rectangular frame, the mounting plate is arranged in the lifting structure, and the leveling feet are arranged on the bottom rectangular frame.
[0009] Preferably, a mounting screw hole is arranged at the center of the top of the mounting plate, and a threaded end is arranged at the bottom end of the limiting rod, and the threaded end is screwed into the mounting screw hole.
[0010] Preferably, the lifting structure includes an electric hydraulic push rod, both ends of which are rotatably connected to a first push plate and a second push plate, the first push plate being rotatably connected to the top rectangular frame at one end facing away from the electric hydraulic push rod, and the second push plate being rotatably connected to the bottom rectangular frame at one end facing away from the electric hydraulic push rod.
[0011] Preferably, the first pushing plate and the second pushing plate are staggered in front and back arrangement, and the first pushing plate and the second pushing plate are arranged in a V-shape.
[0012] Preferably, the lower limiting structure includes a disc, which is located at the center of the bottom rectangular frame. Four groups of equidistant connecting rods are arranged around the disc, and the connecting rods are connected to the bottom rectangular frame. A limiting hole is arranged in the center of the disc, and the drilling sampling tube on the soil sampling drill rig passes through the limiting hole.
[0013] Preferably, the clamp comprises two groups of connecting plates, two groups of symmetrical T-shaped rods are rotatably arranged between the two groups of connecting plates, and clamping grooves are arranged at opposite ends of the two groups of T-shaped rods.
[0014] Preferably, the clamping groove is arranged in an arc shape, and the arc of the clamping groove increases from top to bottom.
[0015] Preferably, two groups of symmetrical guide plates are arranged between the two groups of mounting plates inside the top rectangular frame, and the free ends of the steel wire ropes passing around the guide plates are connected to the corresponding connecting plates.
[0016] Preferably, a rectangular through hole is arranged in the center of the guide plate, a guide roller is arranged on one side inside the rectangular through hole, the steel wire rope passes through the rectangular through hole, and the steel wire rope passes through the guide roller, and the steel wire rope is arranged in a V-shape.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The present invention has a designed stable structure. When the soil sampling drill is working, the stable structure can be placed in advance, and then the rectangular bracket structure can be leveled by the leveling feet. Then, two sets of limit rods are passed through the handheld frame of the soil sampling drill and are connected and fixed to the mounting plate, and the drilling sampling tube of the soil sampling drill is passed through the limit holes of the lower limit structure. At this time, the upper and lower parts of the soil sampling drill can be stably limited at the same time, ensuring that the soil sampling drill can always be in a vertical state when working, so that the soil sampling drill can push the drilling sampling tube vertically into the soil, firstly, ensuring that the drilling sampling tube is always in a vertical force state, and the drilling sampling tube is not easy to be damaged and deformed, and secondly, it can avoid the situation that the sampling depth is inaccurate due to the inclined sampling of the drilling sampling tube, thereby solving the technical problem that the current soil sampling drill is prone to deflection during operation. Therefore, the present invention has the advantage of more stable sampling.
[0019] 2. The rectangular support structure of the present invention is composed of a bottom rectangular frame, a top rectangular frame and a lifting structure, and a clamp is also set on the top rectangular frame through a steel wire rope. The drilling sampling tube of the soil sampling drill passes through the clamp. Therefore, with the cooperation of the lifting structure, while ensuring that the rectangular support structure is not too high, the top rectangular frame can be lifted and lowered to a large extent. Then, during the rising process of the top rectangular frame, the drilling sampling tube of the soil sampling drill can be driven to rise synchronously with the cooperation of the steel wire rope and the clamp, so that the drilling sampling tube that penetrates into the soil can be automatically pulled out, further improving the convenience of sampling.
[0020] 3. The clamp of the present invention is composed of a connecting plate and a T-bar. The opposite ends of the two groups of T-bars are provided with clamping grooves. The clamping grooves are arranged in an arc shape, and the curvature of the clamping grooves increases from top to bottom. After the two groups of T-bars are placed horizontally, the circle formed by the central arc surfaces of the two groups of clamping grooves has the same diameter as the drilling sampling tube of the soil sampling drill. The steel wire rope is guided by the guide plate and connected to the T-bar in a V shape. Therefore, when the top rectangular frame drives the clamp to rise through the steel wire rope, the two groups of T-bars rotate upward. Then the two groups of T-bars will be in a V shape, and at this time the gradually decreasing arc surface above the T-bar clamping groove will clamp and fix the drilling sampling tube. Therefore, when the top rectangular frame drives the clamp to rise through the wire rope, the clamp can automatically achieve the clamping effect on the drilling sampling tube, and when the top rectangular frame descends, the gradually increasing arc surface below the T-bar clamping groove will lose the clamping effect on the drilling sampling tube, so that the clamp can slide down smoothly and automatically, further improving the convenience of pulling out the drilling sampling tube deep in the soil. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0022] Figure 2 It is a schematic diagram of the stable structure of the present invention;
[0023] Figure 3 It is a schematic diagram of the rectangular bracket structure of the present invention;
[0024] Figure 4 It is a schematic diagram of the installation structure of the installation plate and the limiting rod of the present invention;
[0025] Figure 5 It is a schematic diagram of the installation structure of the steel wire rope, the clamp and the guide plate of the present invention;
[0026] Figure 6 It is a top view schematic diagram of the clamp of the present invention;
[0027] Figure 7 It is a bottom view schematic diagram of the clamp of the present invention;
[0028] Figure 8 It is a schematic diagram of the T-bar structure of the present invention.
[0029] Description of the numbers in the figure:
[0030] 1. Soil sampling drill; 2. Stable structure; 3. Rectangular bracket structure; 4. Leveling feet; 5. Mounting plate; 501. Mounting screw hole; 6. Limit rod; 601. Threaded end; 7. Lower limiting structure; 701. Disc; 702. Limit hole; 703. Connecting rod; 8. Wire rope; 9. Clamp; 901. Connecting plate; 902. T-bar; 903. Clamping groove; 10. Guide plate; 1001. Rectangular through hole; 1002. Guide roller; 11. Bottom rectangular frame; 12. Top rectangular frame; 1201. Support block; 13. Lifting structure; 1301. First push plate; 1302. Second push plate; 1303. Electric hydraulic push rod. DETAILED DESCRIPTION
[0031] like Figures 1 to 8 As shown, the present invention relates to a deep soil sampling device for environmental detection, comprising a soil sampling drill 1, a stabilizing structure 2 is arranged below the soil sampling drill 1, the stabilizing structure 2 comprises a rectangular support structure 3, leveling feet 4 are arranged at the four corners of the bottom of the rectangular support structure 3, a lower limiting structure 7 is arranged at the bottom of the rectangular support structure 3, mounting plates 5 are arranged on both sides of the top of the rectangular support structure 3, a limiting rod 6 is movably arranged at the center of the top of the mounting plate 5, and the limiting rod 6 passes through the handheld frame of the soil sampling drill 1;
[0032] When the soil sampling drill 1 is working, the stabilizing structure 2 can be placed in advance, and then the rectangular support structure 3 can be leveled by the leveling feet 4, and then the two sets of limiting rods 6 are passed through the handheld frame of the soil sampling drill 1, and are connected and fixed to the mounting plate 5, and the drilling sampling tube of the soil sampling drill 1 is passed through the limiting hole 702 of the lower limiting structure 7. At this time, the upper and lower parts of the soil sampling drill 1 can be stably limited at the same time to ensure that the soil sampling drill 1 can always be in a vertical state when working, so that the soil sampling drill 1 can push the drilling sampling tube vertically into the soil, and then pull out the drilling sampling tube to complete the sampling work of the deep soil. On the one hand, it can ensure that the drilling sampling tube is always in a vertical force state, and the drilling sampling tube is not easy to be damaged and deformed. On the other hand, it can avoid the situation that the sampling depth is inaccurate due to the tilted sampling of the drilling sampling tube.
[0033] Specifically, a mounting screw hole 501 is arranged in the center of the top of the mounting plate 5, a threaded end 601 is arranged at the bottom end of the limiting rod 6, and the threaded end 601 is screwed into the mounting screw hole 501; by screwing the threaded end 601 into the mounting screw hole 501 of the mounting plate 5, the limiting rod 6 can be fixed.
[0034] Furthermore, the lower limiting structure 7 includes a disc 701, which is located at the center of the bottom rectangular frame 11. Four groups of equidistant connecting rods 703 are arranged around the disc 701, and the connecting rods 703 are connected to the bottom rectangular frame 11. A limiting hole 702 is arranged in the center of the disc 701, and the drilling sampling tube on the soil sampling drill rig 1 passes through the limiting hole 702; the disc 701 is symmetrically installed in the bottom rectangular frame 11 through the center of the connecting rod 703, and then the drilling sampling tube passes through the limiting hole 702 before penetrating into the soil, so that the drilling sampling tube can be vertically limited to prevent it from being deflected.
[0035] In the embodiment of the present invention, the rectangular support structure 3 includes a bottom rectangular frame 11 and a top rectangular frame 12, the bottom rectangular frame 11 is located below the top rectangular frame 12, and a lifting structure 13 is arranged between the four sides of the top rectangular frame 12 and the bottom rectangular frame 11, a clamp 9 is placed at the top center of the lower limiting structure 7, and a steel wire rope 8 is arranged at the center of the front and back of the top of the lifting structure 13, and the free end of the steel wire rope 8 is connected to the clamp 9;
[0036] With the cooperation of the lifting structure 13, while ensuring that the rectangular support structure 3 is not too high, the top rectangular frame 12 can be lifted and lowered to a large extent. Then, during the rising process of the top rectangular frame 12, the clamp 9 is controlled to clamp the drilling sampling tube. Then, with the cooperation of the wire rope 8 and the clamp 9, the drilling sampling tube of the soil sampling drill rig 1 is driven to rise synchronously, so that the drilling sampling tube that penetrates into the soil can be automatically pulled out, and the soil sampling can be quickly completed, further improving the convenience of sampling.
[0037] Specifically, support blocks 1201 are arranged at the four bottom corners of the top rectangular frame 12, the support blocks 1201 are supported on the top of the bottom rectangular frame 11, the mounting plate 5 is arranged in the lifting structure 13, and the leveling feet 4 are arranged on the bottom rectangular frame 11; in the initial state, the top rectangular frame 12 is supported on the bottom rectangular frame 11 by the support blocks 1201, so there is a gap between the four sides of the bottom rectangular frame 11 and the top rectangular frame 12, and then the lifting structure 13 can be installed in the gap.
[0038] Furthermore, the lifting structure 13 includes an electric hydraulic push rod 1303, both ends of which are rotatably connected to a first push plate 1301 and a second push plate 1302, one end of the first push plate 1301 facing away from the electric hydraulic push rod 1303 is rotatably connected to the top rectangular frame 12, and one end of the second push plate 1302 facing away from the electric hydraulic push rod 1303 is rotatably connected to the bottom rectangular frame 11; the first push plate 1301 and the second push plate 1302 The first push plate 1301 and the second push plate 1302 are arranged in a staggered manner front to back, and are arranged in a V-shape; as the electric hydraulic push rod 1303 extends, the first push plate 1301 and the second push plate 1302 can be pushed outward, so that the first push plate 1301 and the second push plate 1302 slowly open, and as the first push plate 1301 and the second push plate 1302 open, the top rectangular frame 12 can be pushed upward, thereby achieving a rising effect of the top rectangular frame 12.
[0039] In an embodiment of the present invention, the clamp 9 includes two groups of connecting plates 901, two groups of symmetrical T-shaped rods 902 are rotatably arranged between the two groups of connecting plates 901, and clamping grooves 903 are arranged at opposite ends of the two groups of T-shaped rods 902; the clamping grooves 903 are arranged in an arc shape, and the arc of the clamping grooves 903 increases from top to bottom; two groups of symmetrical guide plates 10 are arranged between the two groups of mounting plates 5 inside the top rectangular frame 12, and the steel wire rope 8 passes around the free end of the guide plate 10 and is connected to the corresponding connecting plate 901; a rectangular through hole 1001 is arranged in the center of the guide plate 10, and a guide roller 1002 is arranged on one side of the rectangular through hole 1001, and the steel wire rope 8 passes through the rectangular through hole 1001, and the steel wire rope 8 passes through the guide roller 1002, and the steel wire rope 8 is V-shaped.
[0040] After the two groups of T-bars 902 are placed horizontally, the circle formed by the central arc surface of the two groups of clamping grooves 903 is the same as the diameter of the drilling sampling tube of the soil sampling drill rig 1. Therefore, when the top rectangular frame 12 drives the clamp 9 to rise through the wire rope 8, the two groups of T-bars 902 will rotate upward, and then the two groups of T-bars 902 will be V-shaped. At this time, the gradually decreasing arc surface above the clamping groove 903 of the T-bar 902 will clamp and fix the drilling sampling tube. Therefore, when the top rectangular frame 12 drives the clamp 9 to rise through the wire rope 8, the clamp 9 can automatically achieve the clamping effect on the drilling sampling tube, and when the top rectangular frame 12 descends, the gradually increasing arc surface below the clamping groove 903 of the T-bar 902 will lose the clamping effect on the drilling sampling tube, so that the clamp 9 can slide down smoothly and automatically, further improving the convenience of pulling out the drilling sampling tube deep in the soil.
[0041] Working principle: This embodiment provides a deep soil sampling device for environmental testing. When in use, when the soil sampling drill 1 is working, the stabilizing structure 2 can be placed in advance, and then the rectangular bracket structure 3 can be leveled by the leveling feet 4, and then the two sets of limiting rods 6 are passed through the handheld frame of the soil sampling drill 1, and connected and fixed with the mounting plate 5, and the drilling sampling tube of the soil sampling drill 1 is passed through the limiting hole 702 of the lower limiting structure 7. At this time, the upper and lower parts of the soil sampling drill 1 can be stably limited at the same time to ensure that the soil sampling drill 1 can always be in a vertical state when working, so that the soil sampling drill 1 can push the drilling sampling tube vertically into the soil, and then pull out the drilling sampling tube to complete the sampling of deep soil. On the one hand, it can ensure that the drilling sampling tube is always in a vertical force state, and the drilling sampling tube is not easy to be damaged and deformed. On the other hand, it can avoid the occurrence of inaccurate sampling depth caused by tilted sampling of the drilling sampling tube;
[0042] Secondly, with the cooperation of the lifting structure 13, while ensuring that the rectangular support structure 3 is not too high, the top rectangular frame 12 can be lifted and lowered to a large extent, and then during the rising process of the top rectangular frame 12, the clamp 9 is controlled to clamp the drilling sampling tube, and then with the cooperation of the wire rope 8 and the clamp 9, the drilling sampling tube of the soil sampling drill 1 is driven to rise synchronously, so that the drilling sampling tube deep into the soil can be automatically pulled out, and the soil sampling can be quickly completed, further improving the convenience of sampling;
[0043] Finally, after the two groups of T-bars 902 are placed horizontally, the circle formed by the central arc surface of the two groups of clamping grooves 903 is the same as the diameter of the drilling sampling tube of the soil sampling drill rig 1. Therefore, when the top rectangular frame 12 drives the clamp 9 to rise through the wire rope 8, the two groups of T-bars 902 will rotate upward, and then the two groups of T-bars 902 will be V-shaped. At this time, the gradually decreasing arc surface above the clamping groove 903 of the T-bar 902 will clamp and fix the drilling sampling tube. Therefore, when the top rectangular frame 12 drives the clamp 9 to rise through the wire rope 8, the clamp 9 can automatically achieve the clamping effect on the drilling sampling tube, and when the top rectangular frame 12 descends, the gradually increasing arc surface below the clamping groove 903 of the T-bar 902 will lose the clamping effect on the drilling sampling tube, so that the clamp 9 can slide down smoothly and automatically, further improving the convenience of pulling out the drilling sampling tube deep in the soil.
[0044] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A deep soil sampling device for environmental detection, characterized in that: The invention comprises a soil sampling drill (1), wherein a stabilizing structure (2) is arranged below the soil sampling drill (1), wherein the stabilizing structure (2) comprises a rectangular support structure (3), wherein leveling feet (4) are arranged at the four corners of the bottom of the rectangular support structure (3), wherein a lower limiting structure (7) is arranged at the bottom of the rectangular support structure (3), wherein mounting plates (5) are arranged at both sides of the top of the rectangular support structure (3), wherein a limiting rod (6) is movably arranged at the center of the top of the mounting plate (5), and the limiting rod (6) passes through a handheld frame of the soil sampling drill (1); The rectangular support structure (3) comprises a bottom rectangular frame (11) and a top rectangular frame (12); the bottom rectangular frame (11) is located below the top rectangular frame (12); a lifting structure (13) is arranged between the four sides of the top rectangular frame (12) and the bottom rectangular frame (11); a clamp (9) is placed at the center of the top of the lower limiting structure (7); a steel wire rope (8) is arranged at the center of the front and rear of the top of the lifting structure (13); and the free end of the steel wire rope (8) is connected to the clamp (9).
2. The deep soil sampling equipment for environmental detection according to claim 1, characterized in that: Support blocks (1201) are arranged at the four bottom corners of the top rectangular frame (12), the support blocks (1201) are supported on the top of the bottom rectangular frame (11), the mounting plate (5) is arranged in the lifting structure (13), and the leveling feet (4) are arranged on the bottom rectangular frame (11).
3. The deep soil sampling equipment for environmental detection according to claim 1, characterized in that: A mounting screw hole (501) is arranged at the center of the top of the mounting plate (5), and a threaded end (601) is arranged at the bottom end of the limiting rod (6), and the threaded end (601) is screwed into the mounting screw hole (501).
4. The deep soil sampling equipment for environmental detection according to claim 1, characterized in that: The lifting structure (13) includes an electric hydraulic push rod (1303), both ends of which are rotatably connected to a first push plate (1301) and a second push plate (1302), the first push plate (1301) having one end facing away from the electric hydraulic push rod (1303) being rotatably connected to the top rectangular frame (12), and the second push plate (1302) having one end facing away from the electric hydraulic push rod (1303) being rotatably connected to the bottom rectangular frame (11).
5. The deep soil sampling equipment for environmental detection according to claim 4, characterized in that: The first pushing plate (1301) and the second pushing plate (1302) are arranged in a front-to-back staggered manner, and the first pushing plate (1301) and the second pushing plate (1302) are arranged in a V-shape.
6. The deep soil sampling equipment for environmental detection according to claim 1, characterized in that: The lower limiting structure (7) comprises a disc (701), the disc (701) is located at the center of the bottom rectangular frame (11), four groups of equidistant connecting rods (703) are arranged around the disc (701), and the connecting rods (703) are connected to the bottom rectangular frame (11), a limiting hole (702) is arranged at the center of the disc (701), and a drilling sampling tube on the soil sampling drill (1) passes through the limiting hole (702).
7. The deep soil sampling equipment for environmental detection according to claim 1, characterized in that: The clamp (9) comprises two groups of connecting plates (901), two groups of symmetrical T-shaped rods (902) are rotatably arranged between the two groups of connecting plates (901), and clamping grooves (903) are arranged at opposite ends of the two groups of T-shaped rods (902).
8. The deep soil sampling equipment for environmental detection according to claim 7, characterized in that: The clamping groove (903) is arranged in an arc shape, and the arc of the clamping groove (903) increases from top to bottom.
9. The deep soil sampling equipment for environmental detection according to claim 7, characterized in that: Two groups of symmetrical guide plates (10) are arranged between the two groups of mounting plates (5) inside the top rectangular frame (12), and the free ends of the steel wire ropes (8) pass around the guide plates (10) and are connected to the corresponding connecting plates (901).
10. The deep soil sampling equipment for environmental detection according to claim 9, characterized in that: A rectangular through hole (1001) is arranged in the center of the guide plate (10), a guide roller (1002) is arranged on one side inside the rectangular through hole (1001), the steel wire rope (8) passes through the rectangular through hole (1001), and the steel wire rope (8) passes through the guide roller (1002), and the steel wire rope (8) is arranged in a V-shaped line.