Portable soil rapid sampler with anti-pollution structure
By using a protective frame and a motor-driven bidirectional screw slide structure, combined with a flexible rubber protective sleeve and spring design, the problem of soil sampler contamination in the field environment is solved, achieving sample-free and easy-to-carry samples, and improving the service life and flexibility of the soil sampler.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EGIN ENVIRONMENTAL SCI & TECH (TIANJIN) CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-16
AI Technical Summary
Existing soil samplers are easily contaminated by soil and debris in the field, affecting sample purity and detection accuracy, and are also bulky and inconvenient to carry.
The device employs a protective frame structure and utilizes a motor-driven bidirectional screw to slide the slide plate, achieving full-enclosed protection for the sampling tube. It also features a portable component for storing and extending the sampling tube, combined with a flexible rubber protective sleeve and spring structure to ensure that the sample is free from contamination and easy to carry.
It effectively prevents soil and debris contamination before and after sampling, improves sample purity and detection accuracy, and reduces the size of the sampler, making it more portable.
Smart Images

Figure CN224365799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil sampler technology, and in particular to a portable rapid soil sampler with an anti-pollution structure. Background Technology
[0002] With the rapid development of environmental monitoring, agricultural research, and geological exploration, higher demands are being placed on the timeliness, accuracy, and contamination-free nature of soil sample collection. Portable soil samplers, as core tools for field operations, must meet multiple requirements, including rapid sampling, convenient transportation, and protection of sample integrity. Traditional soil samplers often employ a single, straight-insertion metal tube design, which only provides basic sampling functionality and lacks effective protection for the sampling tube and sample. In complex field environments, the sampling tube is easily abraded by soil particles and gravel, and exposed to the outside environment before and after sampling, it is susceptible to contamination by surface humus and pollutants, leading to distorted sample data and severely affecting the reliability of subsequent analysis results. Therefore, there is an urgent need to improve the contamination resistance and practicality of samplers through structural innovation.
[0003] Existing soil samplers mainly adopt two types of structures: one is the manual spiral sampler, which uses manual rotation of the sampling tube with spiral blades to spiral soil into the tube for sampling; the other is the hydraulic impact sampler, which uses hydraulic power to drive the sampling tube to quickly impact the soil to complete sample collection.
[0004] However, existing soil samplers generally lack an effective dynamic protection structure for the sampling tube, making it susceptible to contamination by soil and debris before and after sampling, affecting sample purity and detection accuracy. In harsh field environments, rainwater and humus can easily seep into the sampling tube, and surface pollutants can easily adhere to the exposed outer wall of the sampling tube during sampling, bringing impurities into the sample when inserted into deep soil. Therefore, a portable rapid soil sampler with an anti-contamination structure is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a portable rapid soil sampler with an anti-pollution structure, aiming to improve the problem that the sample is easily contaminated by soil and debris before and after sampling, affecting the purity and accuracy of the test.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A portable rapid soil sampler with an anti-pollution structure includes a protective frame, a conical column fixedly connected to the bottom of the protective frame, a sampling tube slidably connected inside the protective frame, a motor fixedly connected to the outer wall of the protective frame, a bidirectional screw fixedly connected to the output end of the motor, the bidirectional screw being rotatably connected inside the protective frame, and symmetrical sliding plates threaded to the outer wall of the bidirectional screw. Protective components are provided on one side of each of the two sliding plates, and a portable component is provided on the outer wall of the protective frame.
[0008] The protective assembly includes two protective sleeves, which are respectively fixedly connected to one side of the two sliding plates. The two protective sleeves are in contact with the outer wall of the sampling tube. A guide post is fixedly connected inside the protective frame, and the two sliding plates are slidably connected to the outer wall of the guide post.
[0009] As a further description of the above technical solution:
[0010] The portable component includes a connecting frame and a handle. The inner side wall of the connecting frame is fixedly connected to the outer wall of the protective frame, and the bottom of the handle is fixedly connected to the top of the connecting frame.
[0011] As a further description of the above technical solution:
[0012] The bottom of the connecting frame is fixedly connected to a support column, and a handle is slidably connected to the outer wall of the support column.
[0013] As a further description of the above technical solution:
[0014] A support plate is fixedly connected to one side of the handle, and a fixing column is fixedly connected to the bottom of the support plate.
[0015] As a further description of the above technical solution:
[0016] A connecting plate is fixedly connected to the bottom end of the fixed column, and the outer wall of the sampling tube is fixedly connected to the inside of the connecting plate.
[0017] As a further description of the above technical solution:
[0018] A cylinder is fixedly connected to the bottom of the support plate, and a piston rod is fixedly connected to the output end of the cylinder. The piston rod is slidably connected inside the sampling tube.
[0019] As a further description of the above technical solution:
[0020] A spring is provided on the top of the support plate, and the two ends of the spring are fixedly connected to the support plate and the connecting frame, respectively.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the bidirectional screw is driven by a motor to rotate, and the threaded transmission causes the left and right symmetrical sliding plates to slide towards each other, tightly fitting the outer wall of the sampling tube to form a fully enclosed protection. This achieves the effect of effectively protecting the sampling tube, solving the problem that the sample is easily contaminated by soil and debris before and after sampling, affecting the purity of the sample and the accuracy of the test, thereby improving the service life of the rapid soil sampler.
[0023] 2. In this utility model, when the handle is pulled, the support plate slides in the connecting frame, which drives the sampling tube to be retracted into the protective frame. At the same time, the spring is compressed. After being released, the spring rebounds and the sampling tube extends out, which achieves the effect of facilitating the storage and carrying of the sampling tube. This solves the problem of the traditional sampler being bulky and inconvenient to carry, thereby improving the flexibility of the rapid soil sampler. Attached Figure Description
[0024] Figure 1 A three-dimensional schematic diagram of a portable rapid soil sampler with an anti-pollution structure proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the internal structure of the protective frame of a portable rapid soil sampler with an anti-pollution structure proposed in this utility model.
[0026] Figure 3 A schematic diagram of the guide column structure of a portable rapid soil sampler with an anti-pollution structure proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the top structure of the protective frame of a portable rapid soil sampler with an anti-pollution structure proposed in this utility model.
[0028] Figure 5 This is a schematic diagram of the spring structure of a portable rapid soil sampler with an anti-pollution structure proposed in this utility model.
[0029] Legend:
[0030] 1. Protective frame; 2. Conical column; 3. Motor; 4. Bidirectional screw; 5. Slide plate; 6. Protective sleeve; 7. Guide column; 8. Sampling tube; 9. Connecting frame; 10. Handle; 11. Support column; 12. Handle; 13. Support plate; 14. Fixing column; 15. Connecting plate; 16. Cylinder; 17. Piston rod; 18. Spring. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1-3 This utility model provides an embodiment of a portable rapid soil sampler with an anti-pollution structure, including a protective frame 1. A conical column 2 is fixedly connected to the bottom of the protective frame 1, which facilitates the rapid insertion of the sampler into the soil. The sharp shape and the friction between the sampler and the soil provide initial support and precise positioning for the sampling operation, ensuring that the sampler makes vertical and stable contact with the soil environment. A sampling tube 8 is slidably connected inside the protective frame 1. A motor 3 is fixedly connected to the outer wall of the protective frame 1. A bidirectional screw 4 is fixedly connected to the output end of the motor 3, which can efficiently convert the rotational motion of the motor 3 into linear motion. The bidirectional screw 4 is rotatably connected inside the protective frame 1. A symmetrical sliding plate 5 is threadedly connected to the outer wall of the bidirectional screw 4. A protective component is provided on one side of each sliding plate 5. A portable component is provided on the outer wall of the protective frame 1.
[0033] The protective assembly includes two protective sleeves 6, which are fixedly connected to one side of the two sliding plates 5 respectively. The two protective sleeves 6 are in contact with the outer wall of the sampling tube 8. The protective sleeves 6 are made of flexible rubber material, which can not only fit tightly with the outer wall of the sampling tube 8, but also provide a certain cushioning effect when wrapping, preventing damage to the sampling tube 8 and isolating the sampling tube 8 and the internal sample from external debris such as soil, sand, and rainwater. A guide post 7 is fixedly connected inside the protective frame 1, and the two sliding plates 5 are slidably connected to the outer wall of the guide post 7, effectively preventing the sliding plates 5 from shifting or getting stuck during the sliding process.
[0034] Reference Figure 1 , Figure 4 and Figure 5The portable components include a connecting frame 9 and a handle 10. The inner wall of the connecting frame 9 is fixedly connected to the outer wall of the protective frame 1. The bottom of the handle 10 is fixedly connected to the top of the connecting frame 9. A support column 11 is fixedly connected to the bottom of the connecting frame 9. A handle 12 is slidably connected to the outer wall of the support column 11. A support plate 13 is fixedly connected to one side of the handle 12. A fixing column 14 is fixedly connected to the bottom of the support plate 13. A connecting plate 15 is fixedly connected to the bottom end of the fixing column 14. The fixing column 14 and the connecting plate 15 together constitute the connection and fixing structure of the sampling tube 8, ensuring that the sampling tube 8 remains stable in both the retracted and extended states. The outer wall of the sample tube 8 is fixedly connected to the inside of the connecting plate 15. The bottom of the support plate 13 is fixedly connected to the cylinder 16. The output end of the cylinder 16 is fixedly connected to the piston rod 17. The piston rod 17 is slidably connected inside the sample tube 8. The top of the support plate 13 is provided with a spring 18. The two ends of the spring 18 are fixedly connected to the inside of the support plate 13 and the connecting frame 9, respectively. When carrying the sampler, pull the handle 12 to make it slide on the outer wall of the support column 11, which will drive the support plate 13, the fixed column 14, the connecting plate 15 and the sample tube 8 to be put into the protective frame 1 together, so as to realize the convenient storage and quick use of the sample tube 8.
[0035] Working principle: When using this rapid soil sampler, the conical column 2 at the bottom of the protective frame 1 facilitates insertion into the soil, providing initial support and positioning for the sampling operation and helping the sampler to stably contact the soil environment. The sampling tube 8 inside the protective frame 1 is used to collect soil samples. When the sampling is completed and the sampling tube 8 needs to be protected, the output end of the motor 3 drives the bidirectional screw 4 to rotate and connect inside the protective frame 1. Utilizing the thread transmission characteristics of the bidirectional screw 4, it drives the left and right symmetrical sliding plates 5 connected to its outer wall to slide relative to each other. When the sliding plates 5 slide towards each other, the protective sleeve 6 moves closer to the sampling tube 8 and fits against its outer wall, forming a protective enclosure for the sampling tube 8, preventing soil, debris, etc. from contaminating the sampling tube 8 and the sample inside the tube before and after sampling. When the sliding plates 5 slide in the opposite direction, the protective sleeve 6 moves away from the sampling tube 8, exposing the sampling tube 8 so that it can be inserted into the soil for sampling, thereby achieving the effect of effectively protecting the sampling tube 8.
[0036] When carrying the rapid soil sampler, first pull the handle 12 to slide it against the outer wall of the support column 11. At the same time, the handle 12 drives the support plate 13 on one side to move inside the connecting frame 9. The support plate 13 drives the bottom fixed column 14 and the connecting plate 15 to move, so that the connecting plate 15 drives the internal sampling tube 8 to slide inside the protective frame 1, thereby retracting the sampling tube 8 into the protective frame 1. At the same time, the support plate 13 compresses the top spring 18 when it moves, and then the sampling tube 8 is clamped and protected by the protective component, fixing it inside the protective frame 1. Finally, the entire device is carried by the handle 10. When sampling, the sampling tube 8 is released by the protective component. At this time, the spring 18 is relieved and rebounds, thereby driving the support plate 13 to reset, so that the sampling tube 8 extends outside the protective frame 1 for easy sampling, thus achieving the effect of convenient storage and carrying of the sampling tube 8.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A portable rapid soil sampler with an anti-pollution structure, comprising a protective frame (1), characterized in that: The bottom of the protective frame (1) is fixedly connected to a tapered column (2), and a sampling tube (8) is slidably connected inside the protective frame (1). A motor (3) is fixedly connected to the outer wall of the protective frame (1), and a bidirectional screw (4) is fixedly connected to the output end of the motor (3). The bidirectional screw (4) is rotatably connected inside the protective frame (1). The outer wall of the bidirectional screw (4) is threaded with left and right symmetrical sliding plates (5). A protective component is provided on one side of each of the two sliding plates (5). A portable component is provided on the outer wall of the protective frame (1). The protective assembly includes two protective sleeves (6), which are fixedly connected to one side of the two sliding plates (5). The two protective sleeves (6) are in contact with the outer wall of the sampling tube (8). A guide post (7) is fixedly connected inside the protective frame (1), and the two sliding plates (5) are slidably connected to the outer wall of the guide post (7).
2. A portable rapid soil sampler with an anti-pollution structure according to claim 1, characterized in that: The portable component includes a connecting frame (9) and a handle (10). The inner wall of the connecting frame (9) is fixedly connected to the outer wall of the protective frame (1), and the bottom of the handle (10) is fixedly connected to the top of the connecting frame (9).
3. A portable rapid soil sampler with an anti-pollution structure according to claim 2, characterized in that: The bottom of the connecting frame (9) is fixedly connected to a support column (11), and a handle (12) is slidably connected to the outer wall of the support column (11).
4. A portable rapid soil sampler with an anti-pollution structure according to claim 3, characterized in that: A support plate (13) is fixedly connected to one side of the handle (12), and a fixing column (14) is fixedly connected to the bottom of the support plate (13).
5. A portable rapid soil sampler with an anti-pollution structure according to claim 4, characterized in that: The bottom end of the fixed column (14) is fixedly connected to the connecting plate (15), and the outer wall of the sampling tube (8) is fixedly connected to the inside of the connecting plate (15).
6. A portable rapid soil sampler with an anti-pollution structure according to claim 5, characterized in that: A cylinder (16) is fixedly connected to the bottom of the support plate (13), and a piston rod (17) is fixedly connected to the output end of the cylinder (16). The piston rod (17) is slidably connected inside the sampling tube (8).
7. A portable rapid soil sampler with an anti-pollution structure according to claim 6, characterized in that: A spring (18) is provided on the top of the support plate (13), and the two ends of the spring (18) are fixedly connected to the inside of the support plate (13) and the connecting frame (9), respectively.