Polluted site investigation soil sample collection device
By using a servo motor-driven threaded shaft and threaded ring structure, combined with an electronic cylinder, stable sampling of soil samples for contaminated site investigations has been achieved, solving the problem of device tilting or offset, and improving the accuracy and reliability of soil sampling and analysis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-06
AI Technical Summary
Existing soil sampling devices for contaminated site investigations are prone to tilting or shifting during the sampling process, which reduces the accuracy and reliability of soil analysis data.
The structure employs a servo motor-driven threaded shaft and threaded ring. The servo motor drives the threaded shaft to rotate, which in turn causes the threaded ring and lifting plate to slide, thereby controlling the insertion of the insertion rod into the soil fixing device. Combined with an electronic cylinder and connectors, this ensures the stable insertion and removal of the sampling tube.
This improved the stability of the sampling process, ensured the accurate insertion and removal of the sampling tube, and enhanced the accuracy and reliability of the data after soil sampling and analysis.
Smart Images

Figure CN223976886U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a soil sample collection device for contaminated site investigation, specifically a soil sample collection device for contaminated site investigation, belonging to the field of soil sample collection technology. Background Technology
[0002] The soil sampling device for contaminated site investigation is a specialized device used to obtain samples from contaminated soil. Its main function is to accurately and reliably collect representative soil samples during environmental monitoring and pollution assessment, so as to facilitate subsequent analysis of the concentration and distribution of pollutants in the soil. Through a well-designed sampling device, pollution and sample changes during the sampling process can be effectively reduced, ensuring that the obtained data truly reflects the current state of the soil environment, thereby providing a scientific basis for pollution control and remediation. However, existing sampling institutions may overlook the stability of the device during the sampling process, resulting in tilting or offset of the sampling tube, which reduces the accuracy of subsequent soil analysis data. This invention can effectively improve the stability of the sampling tube during the sampling process, thereby improving the accuracy and reliability of the data after soil sampling and analysis, which has certain practical value. Utility Model Content
[0003] The purpose of this invention is to provide a soil sampling device for contaminated site investigation in order to solve the above problems. It can effectively improve the stability of the sampling process of the sampling tube, thereby improving the accuracy and reliability of the data after soil sampling and analysis, which has certain practical value.
[0004] This utility model achieves the above-mentioned objective through the following technical solution: a soil sample collection device for contaminated site investigation, comprising a square base plate, four slots arranged in a square pattern on one side of the square base plate, a servo motor fixedly connected to the top side of the square base plate, a threaded shaft fixedly connected to the top side of the servo motor, a first square top plate rotatably connected to the top of the threaded shaft, a first support column fixedly connected to each of the four corners of the bottom side of the first square top plate, the bottom ends of the first support columns fixedly connected to the top side of the square base plate, a threaded ring threadedly connected to the middle section of the threaded shaft, a lifting plate fixedly connected to the outer wall of the middle part of the threaded ring, the lifting plate and the first support column being connected in a through-type sliding connection, and four insertion rods fixedly connected at even intervals to the bottom side of the lifting plate, the bottom ends of the insertion rods being slidably connected to the inner wall of the slot.
[0005] Preferably, omnidirectional wheels are fixedly installed at the four corners of the bottom side of the square base plate, a sampling groove is provided in the middle of the square base plate, and a trolley frame is fixedly connected to one side of the square base plate.
[0006] Preferably, a second square top plate is fixedly connected to one side of the first square top plate, and a second support column is fixedly connected to each of the four corners of the bottom side of the second square top plate. The bottom ends of the second support columns are fixedly connected to the top side of the square bottom plate.
[0007] Preferably, a cylinder frame is fixedly connected through the middle of the second square top plate, an electronic cylinder is fixedly connected through the middle of the cylinder frame, and a connector is fixedly connected to the bottom of the telescopic end of the electronic cylinder.
[0008] Preferably, the bottom end of the connector is provided with a threaded hole, and a fixing cylinder slides up and down at the bottom end of the connector. The connector and the fixing cylinder are threadedly connected by a bolt through the threaded hole.
[0009] Preferably, a sampling tube is fixedly connected to the bottom side of the fixed cylinder, the bottom end of the sampling tube is set as an annular tip, and four sampling grooves are evenly spaced on the outer wall of the sampling tube.
[0010] The beneficial effects of this utility model are as follows: By setting a servo motor, the servo motor can drive the threaded shaft to rotate, the threaded shaft can drive the threaded ring to slide up and down along the threaded shaft, the threaded ring can drive the lifting plate to slide up and down along the first support column, and the lifting plate can drive the insertion rod to slide up and down along the slot. When the four insertion rods move down and are inserted into the soil at the same time, the device can be effectively fixed, thereby improving the stability of the sampling process of the sampling tube and improving the accuracy and reliability of the data after soil sampling and analysis. This has certain practical value. Attached Figure Description
[0011] Figure 1 This is a front view structural diagram of the present utility model;
[0012] Figure 2 This is a side view of the threaded shaft in this utility model.
[0013] Figure 3 This is a side view of the sampling tube in this utility model.
[0014] Figure 4 This is a bottom view of the lifting plate structure in this utility model;
[0015] Figure 5 This is a front cross-sectional view of the connector in this utility model.
[0016] In the diagram: 1. Square base plate, 2. Casters, 3. Slot, 4. Sampling slot, 5. Trolley frame, 6. Support column 1, 7. Square top plate 1, 8. Servo motor, 9. Threaded shaft, 10. Threaded ring, 11. Lifting plate, 12. Insert rod, 13. Support column 2, 14. Square top plate 2, 15. Cylinder frame, 16. Electronic cylinder, 17. Connector, 18. Threaded hole, 19. Fixing cylinder, 20. Bolt, 21. Sampling tube, 22. Sampling slot. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-5 As shown, a soil sample collection device for contaminated site investigation includes a square base plate 1. Four slots 3 are arranged in a square pattern on one side of the square base plate 1. A servo motor 8 is fixedly connected to the top side of the square base plate 1, and a threaded shaft 9 is fixedly connected to the top side of the servo motor 8. A first square top plate 7 is rotatably connected to the top of the threaded shaft 9. A first support column 6 is fixedly connected to each of the four corners of the bottom side of the first square top plate 7, and the bottom ends of the first support columns 6 are fixedly connected to the top side of the square base plate 1. A threaded ring 10 is threadedly connected to the middle section of the threaded shaft 9, and the outer wall of the middle part of the threaded ring 10 is fixed... A lifting plate 11 is fixedly connected, and the lifting plate 11 is slidably connected to the first support column 6. Four insertion rods 12 are fixedly connected at even intervals on the bottom side of the lifting plate 11. The bottom end of the insertion rod 12 is slidably connected to the inner wall of the slot 3. The servo motor 8 can drive the threaded shaft 9 to rotate, and the threaded shaft 9 can drive the threaded ring 10 to slide up and down along the threaded shaft 9. The threaded ring 10 can drive the lifting plate 11 to slide up and down along the first support column 6, and the lifting plate 11 can drive the insertion rods 12 to slide up and down along the slot 3. When the four insertion rods 12 move downwards at the same time and are inserted into the soil, the device can be effectively fixed.
[0019] As a technical optimization of this utility model, universal wheels 2 are fixedly installed at the four corners of the bottom side of the square base plate 1, a sampling groove 4 is provided in the middle of the square base plate 1, a trolley frame 5 is fixedly connected to one side of the square base plate 1, and the sampling groove 4 is located directly below the sampling tube 21.
[0020] As a technical optimization of this utility model, a second square top plate 14 is fixedly connected to one side of the first square top plate 7, and a second support column 13 is fixedly connected to each of the four corners of the bottom side of the second square top plate 14, and the bottom end of the second support column 13 is fixedly connected to the top side of the square bottom plate 1.
[0021] As a technical optimization of this utility model, a cylinder frame 15 is fixedly connected through the middle of the second square top plate 14, and an electronic cylinder 16 is fixedly connected through the middle of the cylinder frame 15. A connector 17 is fixedly connected to the bottom of the telescopic end of the electronic cylinder 16. The cylinder frame 15 is used to fix the electronic cylinder 16. The electronic cylinder 16 can drive the connector 17 and the components below it to move up and down. The connector 17 is used to fix the electronic cylinder 16 and the fixed cylinder 19.
[0022] As a technical optimization of this utility model, the bottom end of the connector 17 is provided with a threaded hole 18, and the bottom end of the connector 17 is provided with a fixed cylinder 19 that slides up and down. The connector 17 and the fixed cylinder 19 are threadedly connected by a bolt 20 through the threaded hole 18. The bolt 20 is used to fix the connector 17 and the fixed cylinder 19.
[0023] As a technical optimization of this utility model, a sampling tube 21 is fixedly connected to the bottom side of the fixed cylinder 19. The bottom end of the sampling tube 21 is set as an annular tip. Four sampling slots 22 are evenly spaced on the outer wall of the sampling tube 21. The sampling tube 21 is used to insert into the soil for sampling, and the sampling slots 22 are used to facilitate the removal of soil samples from the sampling tube 21.
[0024] As a technical optimization of this utility model, when using this utility model, firstly, the device is pushed to the designated position by 5, then the servo motor 8 is started. The servo motor 8 drives the threaded shaft 9 to rotate, the threaded shaft 9 drives the threaded ring 10 to slide downward along the threaded shaft 9, the threaded ring 10 drives the lifting plate 11 to slide downward along the first support column 6, and the lifting plate 11 can drive the insertion rod 12 to slide downward along the slot 3. When the four insertion rods 12 move downward and are inserted into the soil at the same time, the device can be effectively fixed. At this time, the electronic cylinder 16 is started, the electronic cylinder 16 pushes the connecting piece 17 and the components below it to move downward, the sampling tube 21 passes through the sampling groove 4 and is inserted into the soil. When the insertion depth is sufficient, the electronic cylinder 16 is started in reverse, so that the sampling tube 21 rises back. When the sampling tube 21 is completely removed from the soil, the bolt 20 is turned and the sampling tube 21 is removed. An external tool is inserted into the sampling groove 22 and pulls the soil downward as a whole, thus completing the soil sampling.
[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A soil sampling device for investigating contaminated sites, comprising a square base plate (1), characterized in that: The side of the square bottom plate (1) is provided with four slots (3), and the four slots (3) are surrounded by square arrangement, the top side of the square bottom plate (1) is fixedly connected with a servo motor (8), the top side of the servo motor (8) is fixedly connected with a threaded shaft (9), the top end of the threaded shaft (9) is rotatably connected with a square top plate (7), the bottom side of the square top plate (7) is fixedly connected with a support column (6), the bottom end of the support column (6) is fixedly connected with the top side of the square bottom plate (1), the middle segment of the threaded shaft (9) is threadedly connected with a threaded ring (10), the middle part of the threaded ring (10) is fixedly connected with a lifting plate (11), the lifting plate (11) is in through sliding connection with the support column (6), the bottom side of the lifting plate (11) is uniformly and interval fixedly connected with four inserting rods (12), the bottom end of the inserting rod (12) is in up-down sliding connection with the inner wall of the slot (3).
2. The soil sampling device for investigating a contaminated site according to claim 1, wherein: The bottom side of the square bottom plate (1) is fixedly installed with a universal wheel (2), the middle part of the square bottom plate (1) is provided with a sampling groove (4), one side of the square bottom plate (1) is fixedly connected with a cart frame (5).
3. The soil sampling device for investigating a contaminated site of claim 1, wherein: One side of the square top plate (7) is fixedly connected with a square top plate (14), the bottom side of the square top plate (14) is fixedly connected with a support column (13), the bottom end of the support column (13) is fixedly connected with the top side of the square bottom plate (1).
4. The soil sampling device of claim 3, wherein: The middle part of the square top plate (14) is fixedly connected with a cylinder frame (15), the middle part of the cylinder frame (15) is fixedly connected with an electronic cylinder (16), the bottom end of the electronic cylinder (16) is fixedly connected with a connecting piece (17).
5. The soil sampling device for investigating a contaminated site of claim 4, wherein: The bottom end of the connecting piece (17) is provided with a threaded hole (18), the bottom end of the connecting piece (17) is slidably connected with a fixing cylinder (19), the connecting piece (17) and the fixing cylinder (19) are threadedly connected with a bolt (20) through the threaded hole (18).
6. The device of claim 5, wherein: The bottom side of the fixing cylinder (19) is fixedly connected with a sampling tube (21), the bottom end of the sampling tube (21) is provided with a ring-shaped sharp end, the outer wall of the sampling tube (21) is uniformly and interval provided with four sampling grooves (22).