An equidistant sampling device suitable for research on soil pollutants in agricultural land

By combining a support plate, pedal, bidirectional motor, and bidirectional screw, the design solves the problems of cumbersome and inhumane operation of existing soil pollutant sampling devices, achieving efficient and accurate equidistant sampling, adapting to the needs of different operators, and reducing labor intensity and research costs.

CN224435828UActive Publication Date: 2026-06-30WUHAN ZHIHUI GUOSHI TESTING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN ZHIHUI GUOSHI TESTING TECH CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing soil pollutant sampling devices are cumbersome to operate, inefficient, labor-intensive, and not user-friendly, making it difficult to achieve large-area, multi-point sampling.

Method used

The design incorporates a combination of support plate, pedal, bidirectional motor, bidirectional screw, and scale, along with a control panel and handle, to achieve equidistant sampling and ease of operation. The bidirectional motor drives the bidirectional screw to move the sampling box equidistantly, the pedal is adaptable to different operators' heights and habits, and the control panel adjusts the sampling parameters.

Benefits of technology

It improves the automation and accuracy of the sampling process, reduces the physical exertion of operators, adapts to the needs of different operators, and ensures the representativeness and efficiency of sampling.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of soil research technology and discloses an equidistant sampling device suitable for the study of soil pollutants in agricultural land. It includes a support plate with a scale fixedly connected to its top. Two I-shaped grooves are formed at the top of the support plate, and two I-shaped sliders are slidably connected to the inner walls of the two grooves. Two pedals are fixedly connected to the tops of the two sliders. The operator first determines the sampling interval according to the research requirements. Then, the operating parameters of the bidirectional motor, such as speed and direction of rotation, are set via the control panel. After starting the bidirectional motor, its output drives a bidirectional screw to rotate. Due to the bidirectional thread characteristic of the bidirectional screw, the two moving sleeves connected to the surface of the bidirectional screw will move in opposite directions at equidistant intervals along the screw. The operator can then observe the position of the pointer on the scale.
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Description

Technical Field

[0001] This utility model relates to the field of soil research technology, and in particular to an equidistant sampling device suitable for the study of soil pollutants in agricultural land. Background Technology

[0002] With rapid industrialization and urbanization, agricultural land soil pollution has become increasingly serious, posing a threat to the quality of agricultural products and the ecological environment. Therefore, conducting research on agricultural land soil pollutants and accurately obtaining soil samples for analysis is of great significance for understanding the status of soil pollution and formulating reasonable pollution prevention and control measures.

[0003] Existing devices suffer from numerous inconveniences during operation, such as the need for frequent manual adjustments to sampling positions and depths, resulting in cumbersome and inefficient processes. This is particularly problematic when sampling large areas at multiple points, leading to significant workload for operators. Furthermore, some device designs lack ergonomics, such as improper handle placement and non-adjustable pedal height, impacting operator comfort. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an equidistant sampling device suitable for the study of soil pollutants in agricultural land.

[0005] This utility model is achieved using the following technical solution: an equidistant sampling device suitable for the study of soil pollutants in agricultural land, comprising a support plate, a scale fixedly connected to the top of the support plate, an I-shaped groove provided at the top of the support plate, two I-shaped grooves provided, I-shaped sliders slidably connected to the inner walls of the two I-shaped grooves, two I-shaped sliders provided, and pedals fixedly connected to the tops of the two I-shaped sliders, two pedals provided.

[0006] Through the above technical solution, the cooperation of the I-shaped chute and the I-shaped slider allows the pedal to slide on the support plate, making it convenient for operators to adjust their standing position according to their own needs, improving the comfort and convenience of operation. The pedal allows operators to stand on it and use their own weight to cut the cutter into the soil, reducing the physical exertion of the operators, and also making the process of the cutter cutting into the soil more stable. The pedal can be changed or adjusted in position according to the height and operating habits of different operators, improving the applicability of the device.

[0007] As a further improvement to the above solution, a fixing plate is fixedly connected to the top of the support plate, and a handle is fixedly connected to the top of the fixing plate. There are two handles, and a control panel is fixedly connected to the top of the fixing plate. The control panel is located at the center of the two handles.

[0008] The above technical solution allows operators to easily lift and move the device, and also helps stabilize the device's position during sampling, ensuring the accuracy of the sampling operation. The control panel is located between the two handles, allowing operators to easily adjust the bidirectional motor's operating parameters, such as speed and rotation direction, during operation, thereby flexibly controlling the sampling process.

[0009] As a further improvement to the above solution, a bidirectional motor is fixedly connected to the right end of the support plate, and a bidirectional screw is provided inside the support plate. The output end of the left end of the bidirectional motor is connected to the right end of the bidirectional screw through the inside of the support plate.

[0010] Through the above technical solution, the bidirectional motor provides power for the sampling operation of the device. By driving the bidirectional screw to rotate, it realizes the equidistant movement of the sampling box and the cutting and lifting of the cutter, thus ensuring the automation and efficiency of the sampling process.

[0011] As a further improvement to the above solution, the bidirectional screw surface is connected to a movable sleeve, and two movable sleeves are provided. An extension block is fixedly connected to the top of the two movable sleeves, and a pointer is fixedly connected to the top of the extension block. There are two pointers, and the front ends of the two pointers are at the same height as the scale.

[0012] With the above technical solution, the scale and pointer work together, allowing operators to precisely adjust the sampling interval according to research needs, ensuring the accuracy of equidistant sampling. The pointer at the top of the extension block is at the same height as the scale, and operators can determine the sampling interval by observing the position of the pointer on the scale, thus realizing the visualization and precise control of the sampling interval.

[0013] As a further improvement to the above solution, the bottom ends of the two movable sleeves are fixedly connected to extension plates, and two extension plates are provided, with protective boxes fixedly connected to the bottom ends of the two extension plates.

[0014] Through the above technical solution, the moving sleeve converts the rotational motion of the bidirectional screw into linear motion, and transmits the motion to the sampling box through the extension block and extension plate, realizing the left and right movement of the sampling box and equidistant sampling. The protective box provides protection for the sampling box, avoiding damage such as collisions and squeezing from the outside world during transportation or in non-sampling state, and ensuring the integrity and normal operation of the sampling box.

[0015] As a further improvement to the above solution, two protective boxes are provided, and sampling boxes are fixedly connected inside the two protective boxes. There are two sampling boxes, and cutters are fixedly connected to the bottom of the two sampling boxes. There are four cutters, and barbs are fixedly connected to the inner walls of the four cutters. There are several barbs.

[0016] Through the above technical solution, the cutter is the key component of the sampling box for collecting soil samples. Its sharp blade can smoothly cut into the soil and send the soil sample into the sampling box. The barbs on the inner wall of the cutter can effectively grasp the soil and prevent the soil from slipping during the sampling process, thereby improving the success rate and efficiency of sampling.

[0017] As a further improvement to the above solution, a limiting sleeve is provided inside the support plate, and the limiting sleeve is located at the center of the bidirectional screw.

[0018] With the above technical solution, the limiting sleeve is located at the center of the bidirectional screw, which plays a role in limiting and protecting the bidirectional screw, preventing the bidirectional screw from deviating or excessively wearing during operation, and extending the service life of the bidirectional screw.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention ensures equidistant sampling through a combination of a bidirectional motor, a bidirectional screw, and a pointer scale. The bidirectional motor drives the bidirectional screw to rotate, causing the two moving sleeves to move in opposite directions at equal intervals. The pointer and scale work together to allow the operator to precisely control the sampling interval, which is crucial for studying the distribution patterns of soil pollutants in agricultural land. It ensures that the collected soil samples are representative in spatial distribution and is conducive to accurately analyzing the diffusion of soil pollutants.

[0021] The control panel is located between the two handles, allowing operators to easily adjust the bidirectional motor parameters to control the sampling interval during operation. Operators can operate the system easily without bending over or leaving their position, saving time and improving work efficiency.

[0022] The handle design makes it easy for operators to lift and move the device, and also helps stabilize the device during sampling. The foot pedal can be replaced according to the operator's needs and allows the operator to stand on it to use gravity to assist the cutter in cutting into the soil, accommodating operators of different heights and operating habits, making the operation process more comfortable and effortless, and reducing operator fatigue;

[0023] This utility model features a sampling box located inside a protective box, which protects the sampling box from interference and damage from external factors when the device is moved or not in a sampling state. This ensures that the sampling box can work normally every time a sample is taken, thereby guaranteeing the accuracy and representativeness of the collected soil samples.

[0024] The limiting sleeve at the center of the bidirectional screw plays a limiting and protective role for the bidirectional screw, preventing it from deviating or excessively wearing during operation, thus extending its service life and ensuring the long-term stable operation of the entire device. This reduces the frequency of maintenance and component replacement, and lowers research costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0028] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0029] Explanation of key symbols:

[0030] 1. Support plate; 2. Scale; 3. Fixing plate; 4. Handle; 5. Control panel; 6. Pedal; 7. I-shaped slide; 8. I-shaped slider; 9. Bidirectional motor; 10. Bidirectional screw; 11. Moving sleeve; 12. Extension block; 13. Pointer; 14. Extension plate; 15. Protective box; 16. Sampling box; 17. Cutter; 18. Barb; 19. Limiting sleeve. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] Example:

[0033] Please combine Figure 1-4 This embodiment provides an equidistant sampling device suitable for the study of soil pollutants in agricultural land. It includes a support plate 1, a scale 2 fixedly connected to the top of the support plate 1, an I-shaped groove 7 with two I-shaped grooves 7, and I-shaped sliders 8 slidably connected to the inner walls of the two I-shaped grooves 7. There are two I-shaped sliders 8, and pedals 6 fixedly connected to the top of the two I-shaped sliders 8. There are two pedals 6.

[0034] A fixed plate 3 is fixedly connected to the top of the support plate 1, and a handle 4 is fixedly connected to the top of the fixed plate 3. There are two handles 4. A control panel 5 is fixedly connected to the top of the fixed plate 3. The control panel 5 is located at the center of the two handles 4.

[0035] A bidirectional motor 9 is fixedly connected to the right end of the support plate 1. A bidirectional screw 10 is installed inside the support plate 1. The output end of the left end of the bidirectional motor 9 is connected to the right end of the bidirectional screw 10 through the inside of the support plate 1.

[0036] The surface of the bidirectional screw 10 is connected to a movable sleeve 11. There are two movable sleeves 11. An extension block 12 is fixedly connected to the top of the two movable sleeves 11. A pointer 13 is fixedly connected to the top of the extension block 12. There are two pointers 13. The front ends of the two pointers 13 are at the same height as the scale 2.

[0037] Two movable sleeves 11 are fixedly connected to the bottom of an extension plate 14. There are two extension plates 14, and the bottom of the two extension plates 14 are fixedly connected to a protective box 15.

[0038] There are two protective boxes 15. Sampling boxes 16 are fixedly connected inside the two protective boxes 15. There are two sampling boxes 16. Cutters 17 are fixedly connected to the bottom of the two sampling boxes 16. There are four cutters 17. Barbs 18 are fixedly connected to the inner wall of the four cutters 17. There are several barbs 18.

[0039] The support plate 1 is provided with a limiting sleeve 19, which is located at the center of the bidirectional screw 10.

[0040] The implementation principle of an equidistant sampling device for agricultural land soil pollutant research in this embodiment is as follows: The operator first determines the sampling interval according to the research requirements. Then, the operator sets the operating parameters of the bidirectional motor 9, such as speed and direction of rotation, through the control panel 5. After starting the bidirectional motor 9, its output drives the bidirectional screw 10 to rotate. Due to the bidirectional thread characteristics of the bidirectional screw 10, the two moving sleeves 11 connected to the surface of the bidirectional screw 10 will move in opposite directions at equal intervals on the screw. At this time, the operator observes the position of the pointer 13 on the scale 2. When the pointer 13 reaches the preset sampling interval scale, the operator stops the bidirectional motor 9, completing the adjustment of the sampling interval. After determining the sampling interval, the device is placed at the sampling location on the agricultural land. The operator stands on the pedal 6 (the position of the pedal 6 can be adjusted according to the operator's height and operating habits), using their own weight to press down on the pedal 6. The pressure is ultimately transmitted to the cutter 17 at the bottom of the sampling box 16, causing the cutter 17 to cut into the soil. The barbs 18 on the inner wall of the cutter 17 grip the soil during the cutting process, and the soil enters the sampling box 16. After sampling is completed, the operator uses the two handles 4 to lift the device upwards. If multiple samplings are required at different locations, the above sampling interval adjustment and sampling process can be repeated.

[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An equidistant sampling device suitable for use in agricultural soil contaminant studies, characterized in that, Includes a support plate (1), a scale (2) is fixedly connected to the top of the support plate (1), an I-shaped slide groove (7) is opened at the top of the support plate (1), two I-shaped slide grooves (7) are provided, an I-shaped slider (8) is slidably connected to the inner wall of the two I-shaped slide grooves (7), two I-shaped sliders (8) are provided, and a pedal (6) is fixedly connected to the top of the two I-shaped sliders (8), two pedals (6) are provided.

2. An equidistant sampling device for use in the study of soil contaminants in agricultural soils as claimed in claim 1, wherein: The top of the support plate (1) is fixedly connected to a fixing plate (3), and the top of the fixing plate (3) is fixedly connected to a handle (4). There are two handles (4). The top of the fixing plate (3) is fixedly connected to a control panel (5). The control panel (5) is located at the center of the two handles (4).

3. An equidistant sampling device for use in the study of soil contaminants in agricultural soils as claimed in claim 1, wherein: A bidirectional motor (9) is fixedly connected to the right end of the support plate (1), and a bidirectional screw (10) is provided inside the support plate (1). The output end of the left end of the bidirectional motor (9) is connected to the right end of the bidirectional screw (10) through the inside of the support plate (1).

4. An equidistant sampling device for use in the study of soil contaminants in agricultural soils as claimed in claim 3 wherein: The surface of the bidirectional screw (10) is connected to a movable sleeve (11). There are two movable sleeves (11). The top ends of the two movable sleeves (11) are fixedly connected to an extension block (12). The top ends of the extension block (12) are fixedly connected to a pointer (13). There are two pointers (13). The front ends of the two pointers (13) are at the same height as the scale (2).

5. An equidistant sampling device for use in the study of soil contaminants in agricultural soils as claimed in claim 4 wherein: Two extension plates (14) are fixedly connected to the bottom ends of the two movable sleeves (11), and two extension plates (14) are provided. A protective box (15) is fixedly connected to the bottom ends of the two extension plates (14).

6. An equidistant sampling device suitable for use in the study of soil contaminants in agricultural soils as claimed in claim 5, characterised in that: There are two protective boxes (15), and a sampling box (16) is fixedly connected inside the two protective boxes (15). There are two sampling boxes (16), and a cutter (17) is fixedly connected to the bottom of the two sampling boxes (16). There are four cutters (17), and barbs (18) are fixedly connected to the inner wall of the four cutters (17). There are several barbs (18).

7. The equidistant sampling device for studying soil pollutants in agricultural land as described in claim 1, characterized in that: The support plate (1) is provided with a limiting sleeve (19) inside, and the limiting sleeve (19) is located at the center of the bidirectional screw (10).