Rapid detection equipment for agricultural soil nutrients
By designing a rapid soil nutrient testing device for agriculture, using a knob and drill bit to quickly collect soil samples, and electrode sensors to detect and display the results in real time, the device solves the problems of long testing time and high cost of traditional testing, and realizes rapid and low-cost soil nutrient testing, which is suitable for farmers to use in the field.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional soil nutrient testing methods are time-consuming, costly, and complex to operate, making it difficult to meet farmers' needs for timely understanding of soil nutrient status. Laboratory equipment is also bulky and highly specialized, limiting its application in the field.
A rapid soil nutrient testing device for agriculture was designed, comprising a display screen, controller, testing cylinder, electrode sensor, and cleaning structure. Soil samples are quickly collected via a knob and drill bit, the electrode sensor detects and displays the results in real time, and the cleaning structure ensures testing accuracy.
It enables rapid and low-cost soil nutrient testing, reduces operational complexity, improves testing efficiency, and is suitable for farmers to use in the field.
Smart Images

Figure CN224122529U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil testing technology, and in particular to a rapid testing device for agricultural soil nutrients. Background Technology
[0002] With the development of agricultural modernization, the concept of precision agriculture has gradually become popular. Precision agriculture aims to accurately carry out agricultural inputs, fertilization, and irrigation operations based on soil characteristics and crop requirements. Soil nutrient testing is a fundamental link in precision agriculture. When planting corn, the demand for nitrogen, phosphorus, and potassium varies at different growth stages. By accurately testing soil nutrients, farmers can determine which nutrients to supplement at which stage, avoiding blind fertilization and thus improving crop yield and quality. In agricultural production, traditional soil nutrient testing methods mainly involve chemical analysis in the laboratory. Although these methods are accurate, the operation process is complex. The determination of total nitrogen in soil uses the Kjeldahl method, which requires multiple steps such as digestion, distillation, and titration. First, the soil sample is heated and digested with concentrated sulfuric acid and a catalyst to convert organic nitrogen into ammonium nitrogen. This process usually takes several hours and requires the use of specialized digestion equipment.
[0003] Traditional testing methods are time-consuming, taking several days or even weeks from sample collection to obtaining test results. This is difficult to meet the actual needs of farmers who need to understand the soil nutrient status in a timely manner to guide agricultural production in the current season. Moreover, laboratory testing equipment is usually expensive and bulky, and requires highly skilled operators. Only professionally trained technicians can operate it accurately. All these factors limit its widespread application in the fields. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a rapid detection device for agricultural soil nutrients, aiming to improve the problems of long detection time, long waiting period for results and high cost in the existing technology.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a rapid detection device for agricultural soil nutrients, including a display screen, a controller fixedly connected to the rear side of the display screen, multiple buttons slidably connected to the top of the controller, a connection port fixedly connected to the left side of the display screen, a connecting wire fixedly connected to the inner wall of the connection port, a detection cylinder fixedly connected to the left side of the connecting wire, elongated openings on both sides of the detection cylinder, a knob slidably connected to the inner wall of the elongated opening, a sliding disk threadedly connected to the left side of the knob, multiple detection columns fixedly connected to the bottom of the sliding disk, a drill bit fixedly connected to the bottom of each detection column, an electrode sensor fixedly connected to the lower middle part of the outer wall of each detection column, and a cleaning structure fixedly connected to the top center of the sliding disk. The cleaning structure is used to clean the bottom and reduce the impact on the detection results.
[0006] As a further description of the above technical solution:
[0007] The cleaning structure includes a sliding column, the top of which is fixedly connected to the top center of the sliding disk. A spring is fixedly connected to the top of the inner wall of the sliding column, and a support column is fixedly connected to the bottom of the spring. An elongated opening is provided on both the left and right sides of the support column. A perforated disk is fixedly connected to the bottom of the support column. Multiple cleaning cotton rings are fixedly connected to the middle of the perforated disk. A soft sleeve is fixedly connected to the outer wall of the perforated disk, and a toggle button is fixedly connected to the front and back sides of the soft sleeve.
[0008] As a further description of the above technical solution:
[0009] A water tank is fixedly connected to the top of the detection cylinder, and a piston is slidably connected to the inner wall of the water tank.
[0010] As a further description of the above technical solution:
[0011] A push column is fixedly connected to the top of the piston, and a push button is fixedly connected to the top of the push column.
[0012] As a further description of the above technical solution:
[0013] A water pipe is connected to the front of the water tank, and a nozzle is connected to the bottom rear of the water pipe.
[0014] As a further description of the above technical solution:
[0015] Limit buttons are threaded to the bottom left and right sides of the soft sleeve, and a protective sleeve is fixedly connected to the outer wall of the controller.
[0016] As a further description of the above technical solution:
[0017] A label is provided on the back of the protective cover, and screws are threaded onto both the top and bottom sides of the label.
[0018] As a further description of the above technical solution:
[0019] The inner wall of the nozzle is fixedly connected to a perforated disc, and the top of the water tank is provided with a cover plate.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when conducting the test, loosen the knob to make it slide within the elongated opening 2. The sliding plate slides down, driving the detection column downward. The drill bit penetrates the soil. Press the controller button, and the electrode sensor detects the ionic nutrients in the soil. The results are displayed on the screen through the connection line. The user records the data. This method is fast, low-cost, and highly efficient.
[0022] 2. In this utility model, when the detection column needs cleaning, press the button to start the water pipe to spray water, and at the same time move the toggle switch downward to move the soft sleeve. The cleaning cotton ring on it will then rub against the detection column to clean it. After reaching the bottom, release the toggle switch, and the spring will cause the perforated plate to retract, and the elongated opening will retract. The column will then rub against the screen again to clean it. Repeat this process to remove the dirt from the detection column, ensuring that it does not affect subsequent tests and making it convenient for users. Attached Figure Description
[0023] Figure 1 A perspective view of the front of the display screen of the rapid agricultural soil nutrient detection device proposed in this utility model;
[0024] Figure 2 This is a partial rear view of the controller structure of the rapid detection device for agricultural soil nutrients proposed in this utility model.
[0025] Figure 3 This is a partial structural breakdown diagram of the water tank of the rapid agricultural soil nutrient testing device proposed in this utility model;
[0026] Figure 4 This is a partial structural breakdown diagram of the detection column of the rapid detection device for agricultural soil nutrients proposed in this utility model;
[0027] Figure 5 This is a partial structural breakdown of the perforated disc in the rapid agricultural soil nutrient detection device proposed in this utility model.
[0028] Legend:
[0029] 1. Display screen; 2. Cleaning structure; 201. Sliding column; 202. Long opening one; 203. Support column; 204. Perforated plate; 205. Spring; 206. Cleaning cotton ring; 207. Soft sleeve; 208. Toggle button; 3. Controller; 4. Button; 5. Connection port; 6. Connection cable; 7. Detection cylinder; 8. Long opening two; 9. Knob; 10. Sliding plate; 11. Detection column; 12. Drill bit; 13. Electrode sensor; 14. Water tank; 15. Piston; 16. Push column; 17. Cover plate; 18. Water pipe; 19. Nozzle; 20. Perforated plate; 21. Protective sleeve; 22. Label; 23. Screw; 24. Limit button; 25. Press button. Detailed Implementation
[0030] 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.
[0031] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a rapid detection device for agricultural soil nutrients, including a display screen 1, a controller 3 fixedly connected to the rear side of the display screen 1, multiple buttons 4 slidably connected to the top of the controller 3, a connection port 5 fixedly connected to the left side of the display screen 1 for receiving data, a connection line 6 fixedly connected to the inner wall of the connection port 5, a detection cylinder 7 fixedly connected to the left side of the connection line 6, elongated openings 8 on both the left and right sides of the detection cylinder 7, a knob 9 slidably connected to the inner wall of the elongated openings 8 for structural perfection, a sliding disk 10 threadedly connected to the left side of the knob 9, multiple detection columns 11 fixedly connected to the bottom of the sliding disk 10, a drill bit 12 fixedly connected to the bottom of the detection column 11 for easy penetration into the soil, an electrode sensor 13 fixedly connected to the lower middle part of the outer wall of the detection column 11, and a cleaning structure 2 fixedly connected to the top middle of the sliding disk 10 for cleaning the bottom and reducing the impact on the detection results.
[0032] Specifically, the device includes a display screen 1, with a controller 3 fixedly connected to its rear side. Multiple buttons 4 are slidably connected to the top of the controller 3 for operating the device. A connection port 5 is fixedly connected to the left side of the display screen 1, through which external data can be received. A connecting cable 6 is fixedly connected to the inner wall of the connection port 5, and a detection cylinder 7 is fixedly connected to the left side of the connecting cable 6. The detection cylinder 7 is a key component for placing soil samples and conducting tests. Both sides of the detection cylinder 7 have elongated openings 8, which facilitate user observation of the soil sample or other operations. A knob 9 is slidably connected to the inner wall of each elongated opening 8, allowing adjustment of certain parameters inside the detection cylinder 7 to optimize the testing structure. A sliding disk 10 is threadedly connected to the left side. The sliding disk 10 can move along the axial direction of the detection cylinder 7 for easy operation. Multiple detection columns 11 are fixedly connected to the bottom of the sliding disk 10. These detection columns 11 can easily penetrate the soil to collect soil samples. A drill bit 12 is fixedly connected to the bottom of the detection column 11, which allows it to easily penetrate the soil to obtain soil samples. An electrode sensor 13 is fixedly connected to the lower middle part of the outer wall of the detection column 11. The electrode sensor 13 is used to detect the nutrient content in the soil sample. A cleaning structure 2 is fixedly connected to the top middle of the sliding disk 10. The cleaning structure 2 is used to clean the bottom of the detection column 11 before and after detection to reduce the impact of soil residue on subsequent detection results and ensure the accuracy of the detection data.
[0033] Please see the appendix Figure 3 - Appendix Figure 5The cleaning structure 2 includes a sliding column 201. The top of the sliding column 201 is fixedly connected to the top center of the sliding disk 10. A spring 205 is fixedly connected to the top of the inner wall of the sliding column 201. A bearing column 203 is fixedly connected to the bottom of the spring 205. An elongated opening 202 is provided on both the left and right sides of the bearing column 203. A perforated disk 204 is fixedly connected to the bottom of the bearing column 203. Multiple cleaning cotton rings 206 are fixedly connected to the middle of the perforated disk 204. A soft sleeve 207 is fixedly connected to the outer wall of the perforated disk 204. A toggle button 208 is fixedly connected to the front and rear sides of the soft sleeve 207.
[0034] Specifically, the cleaning structure 2 includes a sliding column 201. The upper end of the sliding column 201 is firmly installed at the top center of the sliding disk 10. To ensure the stability and functionality of the structure, a spring 205 is fixedly connected to the upper part of the inner wall of the sliding column 201. The function of the spring 205 is to provide a certain elastic force to support the movement of subsequent components. Next, a support column 203 is fixedly connected to the lower end of the spring 205. The support column 203 has elongated openings 202 on both its left and right sides, allowing it to maintain a certain degree of flexibility and adaptability during sliding. The lower end of the support column 203 is fixedly connected to... A perforated disc 204 has multiple cleaning cotton rings 206 evenly fixedly connected to its central area. These cleaning cotton rings 206 are key components for actual cleaning work, effectively absorbing and removing dirt. To further enhance the function of the cleaning structure 2, a soft sleeve 207 is also fixedly connected to the outer wall of the perforated disc 204. The soft sleeve 207 not only protects the user's hands from injury by hard objects but also increases the comfort of holding it. Finally, toggle buttons 208 are fixedly connected to both the front and back sides of the soft sleeve 207. These toggle buttons 208 allow the user to easily operate and control the cleaning structure 2, thereby achieving a more efficient and convenient cleaning process.
[0035] Please see the appendix Figure 2 - Appendix Figure 4 A water tank 14 is fixedly connected to the top of the detection cylinder 7. A piston 15 is slidably connected to the inner wall of the water tank 14. A push column 16 is fixedly connected to the top of the piston 15. A push button 25 is fixedly connected to the top of the push column 16. A water pipe 18 is connected to the front side of the water tank 14. A nozzle 19 is connected to the bottom rear side of the water pipe 18.
[0036] Specifically, the top of the detection cylinder 7 is fixedly connected to the water tank 14, ensuring that the water tank 14 can be stably installed above the detection cylinder 7. The inner wall of the water tank 14 has a sliding track, allowing the piston 15 to slide smoothly on its inner wall. The top of the piston 15 is fixedly connected to the push column 16 through a mechanical connection, which ensures that force can be transmitted between the piston 15 and the push column 16. A push button 25 is fixedly connected to the top of the push column 16, and the user can operate the entire device by pressing this push button 25. In addition, there is a connecting port on the front side of the water tank 14, which is connected to the water pipe 18. The bottom rear side of the water pipe 18 is connected to the nozzle 19, so that the water in the water tank 14 can flow to the nozzle 19 through the water pipe 18, thereby realizing the function of spraying water.
[0037] Please see the appendix Figure 1 - Appendix Figure 3 The bottom left and right sides of the soft sleeve 207 are threaded with limit buttons 24. The outer wall of the controller 3 is fixedly connected with a protective sleeve 21. A label 22 is provided on the back side of the protective sleeve 21. Screws 23 are threaded on the upper and lower sides of the label 22. A multi-hole disc 20 is fixedly connected to the inner wall of the nozzle 19. A cover plate 17 is provided on the top of the water tank 14.
[0038] Specifically, the bottom left and right sides of the soft sleeve 207 have threaded limit buttons 24. These limit buttons 24 are designed to ensure that the soft sleeve 207 can be stably fixed in the appropriate position during use. At the same time, a protective sleeve 21 is fixedly connected to the outer wall of the controller 3. The main function of this protective sleeve 21 is to protect the controller 3 from the influence of the external environment, thereby extending the service life of the controller 3. In addition, a label 22 is set on the back of the protective sleeve 21. The label 22 can record important information about the controller 3 for easy identification and use by the user. To further strengthen the fixation of the label 22, screws 23 are threadedly connected to its top and bottom sides to ensure that the label 22 will not fall off during long-term use. A perforated disc 20 is fixedly connected to the inner wall of the nozzle 19. The function of the perforated disc 20 is to evenly distribute the water flow to achieve a better spraying effect. Finally, a cover plate 17 is set on the top of the water tank 14. The cover plate 17 not only prevents the water in the water tank 14 from evaporating, but also prevents foreign objects from falling into the water tank 14, ensuring the cleanliness of the water.
[0039] Working principle: When testing is required, simply turn knob 9 so that the middle part of knob 9 slides within the elongated opening 8, allowing the sliding disk 10 to slide downwards inside the testing cylinder 7, which in turn drives the testing column 11 downwards, allowing the drill bit 12 to penetrate the soil. At this time, press button 4 on controller 3 so that the bottom electrode sensor 13 begins to detect ionic nutrients in the soil. The detection results are transmitted to the display screen 1 via connection cable 6, and the user records the data. This method is fast, reduces costs, and improves efficiency.
[0040] When the detection column 11 at the bottom needs cleaning after repeated use, simply press the button 25 to start spraying water from the perforated disc 20 at the bottom of the water pipe 18. Press the toggle button 208 and move it downwards, causing the soft sleeve 207 to move downwards. The soft sleeve 207 has multiple cleaning cotton rings 206 in the middle. During the movement, the cleaning cotton rings 206 rub against the detection column 11 to clean it. When it reaches the bottom, release the toggle button 208. The spring 205 at the top of the perforated disc 204 provides a contraction force, causing the elongated opening 202 at the top to retract and rub against the column again for cleaning. Repeat the up-and-down sliding motion several times to remove the dirt from the detection column 11, so as not to affect the next test and to facilitate user use.
[0041] 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 rapid detection device for agricultural soil nutrients, including a display screen (1), characterized in that: A controller (3) is fixedly connected to the rear side of the display screen (1). Multiple buttons (4) are slidably connected to the top of the controller (3). A connection port (5) is fixedly connected to the left side of the display screen (1). A connecting line (6) is fixedly connected to the inner wall of the connection port (5). A detection cylinder (7) is fixedly connected to the left side of the connecting line (6). An elongated opening (8) is opened on both the left and right sides of the detection cylinder (7). A knob (9) is slidably connected to the inner wall of the elongated opening (8). A sliding disk (10) is threadedly connected to the left side of the knob (9). Multiple detection columns (11) are fixedly connected to the bottom of the sliding disk (10). A drill bit (12) is fixedly connected to the bottom of the detection column (11). An electrode sensor (13) is fixedly connected to the lower middle part of the outer wall of the detection column (11). A cleaning structure (2) is fixedly connected to the top middle of the sliding disk (10). The cleaning structure (2) is used to clean the bottom and reduce the impact on the detection results.
2. The rapid detection device for agricultural soil nutrients according to claim 1, characterized in that: The cleaning structure (2) includes a sliding column (201), the top of which is fixedly connected to the middle of the top of the sliding disk (10). A spring (205) is fixedly connected to the top of the inner wall of the sliding column (201). A bearing column (203) is fixedly connected to the bottom of the spring (205). An elongated opening (202) is provided on both the left and right sides of the bearing column (203). A perforated disk (204) is fixedly connected to the bottom of the bearing column (203). Multiple cleaning cotton rings (206) are fixedly connected to the middle of the perforated disk (204). A soft sleeve (207) is fixedly connected to the outer wall of the perforated disk (204). A toggle button (208) is fixedly connected to the front and back sides of the soft sleeve (207).
3. The rapid detection device for agricultural soil nutrients according to claim 1, characterized in that: A water tank (14) is fixedly connected to the top of the detection cylinder (7), and a piston (15) is slidably connected to the inner wall of the water tank (14).
4. The rapid detection device for agricultural soil nutrients according to claim 3, characterized in that: The piston (15) is fixedly connected to a push column (16), and the push column (16) is fixedly connected to a push button (25).
5. The rapid detection device for agricultural soil nutrients according to claim 3, characterized in that: The front side of the water tank (14) is connected to a water pipe (18), and the bottom rear side of the water pipe (18) is connected to a nozzle (19).
6. The rapid detection device for agricultural soil nutrients according to claim 2, characterized in that: The bottom left and right sides of the soft sleeve (207) are threaded with limit buttons (24), and the outer wall of the controller (3) is fixedly connected with a protective sleeve (21).
7. The rapid detection device for agricultural soil nutrients according to claim 6, characterized in that: A label (22) is provided on the rear side of the protective cover (21), and screws (23) are threaded on both the upper and lower sides of the label (22).
8. The rapid detection device for agricultural soil nutrients according to claim 5, characterized in that: The inner wall of the nozzle (19) is fixedly connected to a perforated disc (20), and the top of the water tank (14) is provided with a cover plate (17).