A soil fertilizer nutrient tester
By designing the soil extrusion tube and the extrusion and collection mechanism of the measuring box, the problem of soil solution nutrient determination was solved, enabling rapid and accurate soil solution nutrient detection and improving the accuracy of the measurement results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAITU TOWN PEOPLES GOVERNMENT OF XIAO COUNTY
- Filing Date
- 2025-06-21
- Publication Date
- 2026-07-07
AI Technical Summary
Existing methods for determining soil and fertilizer nutrients are insufficient for quickly and accurately measuring the nutrient content in field soil solutions, leading to biased results.
A soil nutrient analyzer was designed, comprising a soil extrusion tube and a measuring box. Soil moisture is extruded and collected through an extrusion disc, a lifting screw, and a bevel gear mechanism. The water is dripped into the collecting box using a filter plate and then detected by a small measuring device.
It enables rapid and accurate determination of nutrient content in soil solution in the field, improving the accuracy of the test results and their agronomic guidance value.
Smart Images

Figure CN224471667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a soil and fertilizer nutrient analyzer, belonging to the field of soil and fertilizer nutrient analysis technology. Background Technology
[0002] Soil and fertilizer nutrient determination is a rapid analysis of the content of nutrients such as nitrogen, phosphorus, and potassium in soil and fertilizers using chemical or physical methods, providing a basis for scientific fertilization.
[0003] Currently, the mainstream methods for determining soil nutrients usually analyze solid soil samples directly. However, if the methods are changed to measuring the nutrient content in soil solution, it can more accurately reflect the actual available nutrient status that plants can absorb, thereby significantly improving the accuracy of the test results and their agronomic guidance value.
[0004] However, since it is difficult to quickly extract soil solution under field conditions, if soil moisture is extracted using machinery after transportation, the test results may be biased.
[0005] Therefore, it is urgent to improve the soil and fertilizer nutrient analyzer to solve the above-mentioned problems. Utility Model Content
[0006] The purpose of this invention is to provide a soil fertilizer nutrient analyzer. When the soil is squeezed by the extrusion plate, the water it contains can drip through the filter plate into the collection box, so that the staff can test the moisture content of the soil.
[0007] To achieve the above objectives, the main technical solution adopted by this utility model includes: a soil fertilizer nutrient analyzer, comprising a soil extrusion tube and a measuring box detachably connected to the soil extrusion tube, wherein the measuring box is used for detecting soil fertilizer nutrients, and the soil extrusion tube is provided with an extrusion mechanism inside;
[0008] The extrusion mechanism includes an extrusion disc slidably disposed inside the soil extrusion tube, a lifting screw for vertically driving the extrusion disc, and a first bevel gear threadedly connected to the lifting screw.
[0009] A fixed base is fixedly installed on the lower half of the inner side of the soil extrusion tube. A filter plate is fixedly installed in the middle of the fixed base. A collection box is slidably connected to the inside of the soil extrusion tube below the filter plate. The size of the collection box is the same as that of the filter plate.
[0010] Preferably, a top cap is fixedly provided at the upper end of the soil extrusion tube, the top cap is in communication with the inside of the soil extrusion tube, and the first bevel gear is rotatably disposed inside the top cap.
[0011] Preferably, a mounting bracket is fixedly provided on the inner side of the top cap, and the first bevel gear is rotatably connected to the upper side of the mounting bracket.
[0012] Preferably, a second bevel gear is meshed with one side of the first bevel gear, and a crank handle is fixedly connected to one side of the second bevel gear via a connecting rod. The crank handle is located outside the top cap, and the connecting rod is rotatably connected to the top cap.
[0013] Preferably, the lower half of the soil extrusion tube has an installation cavity, and the collection box is slidably connected to the inside of the installation cavity via two side slide rails.
[0014] Preferably, an installation rail is fixedly provided on one side of the lower half of the soil extrusion tube. The installation rail is slidably connected to the measuring box via a slider. The measuring box is fixedly connected to the slider. A small measuring device for nutrient measurement is fixedly provided inside the measuring box. The small measuring device is electrically connected to a display via a power cord.
[0015] Preferably, a soil delivery pipe is fixedly installed on the upper half of the soil extrusion pipe, the soil delivery pipe is connected to the inside of the soil extrusion pipe, and the soil delivery pipe is inclined.
[0016] This utility model has at least the following beneficial effects:
[0017] When soil needs to be compressed, the worker turns the crank handle, which drives the second bevel gear to rotate. When the second bevel gear rotates, it drives the first bevel gear that meshes with it to rotate. In this way, the first bevel gear causes the lifting screw that is threadedly connected to it to rotate and rise. Then, the extrusion disc that is rotatably connected to the lifting screw can be used to compress the soil.
[0018] When the soil is compressed, the moisture it contains drips through the filter plate into the collection box, allowing staff to test the moisture content of the soil. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a soil fertilizer nutrient analyzer according to an embodiment of the present invention;
[0021] Figure 2 This is a cross-sectional view of the soil extrusion tube of a soil fertilizer nutrient analyzer according to an embodiment of the present invention.
[0022] Figure 3This is a schematic diagram showing the disassembled collection box and soil extrusion tube of a soil fertilizer nutrient analyzer according to an embodiment of the present invention.
[0023] Figure 4 This is a schematic diagram showing the disassembled soil extrusion tube and measuring box of a soil fertilizer nutrient analyzer according to an embodiment of the present invention.
[0024] In the diagram, 1. Soil extrusion pipe; 2. Top cap; 3. Soil delivery pipe; 4. Crank handle; 5. Collection box; 6. Mounting rail; 7. Measuring box; 8. Lifting screw; 9. First bevel gear; 10. Second bevel gear; 11. Mounting bracket; 12. Extrusion disc; 13. Fixed base; 14. Filter plate; 15. Mounting cavity; 16. Small measuring device. Detailed Implementation
[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0026] Examples, such as Figures 1-4 As shown, a soil fertilizer nutrient analyzer includes a soil extrusion tube 1 and a measuring box 7 detachably connected to the soil extrusion tube 1. The measuring box 7 is used for detecting soil fertilizer nutrients. The soil extrusion tube 1 is equipped with an extrusion mechanism, which can extrude the soil inside the soil extrusion tube 1 to squeeze out the water contained in the soil, thereby facilitating the staff to directly and accurately detect and analyze the fertilizer nutrients in the soil moisture.
[0027] The extrusion mechanism includes an extrusion disc 12 slidably disposed on the upper half of the inner side of the soil extrusion tube 1, a lifting screw 8 for vertical driving of the extrusion disc 12, and a first bevel gear 9 threadedly connected to the lifting screw 8. A second bevel gear 10 is meshed on one side of the first bevel gear 9, and a crank handle 4 is fixedly connected to one side of the second bevel gear 10 via a connecting rod. The crank handle 4 is located outside the top cap 2, and the connecting rod is rotatably connected to the top cap 2. When soil needs to be extruded, the operator turns the crank handle 4, which drives the second bevel gear 10 to rotate. When the second bevel gear 10 rotates, it drives the first bevel gear 9 meshing with it to rotate. In this way, the first bevel gear 9 can cause the lifting screw 8 threadedly connected to it to rotate and rise. Then, the extrusion disc 12 rotatably connected to the lifting screw 8 can be used to extrude soil.
[0028] A fixed base plate 13 is fixedly installed on the lower half of the inner side of the soil extrusion tube 1. A filter plate 14 is fixedly installed in the middle of the fixed base plate 13. A collection box 5 is installed below the filter plate 14 and is slidably connected to the inside of the soil extrusion tube 1. The size of the collection box 5 is the same as that of the filter plate 14. When the soil is extruded, the water contained in it can drip through the filter plate 14 into the collection box 5 so that the staff can test the moisture content in the soil.
[0029] Furthermore, a top cap 2 is fixedly installed at the upper end of the soil extrusion tube 1. The top cap 2 is connected to the interior of the soil extrusion tube 1. The first bevel gear 9 is rotatably installed inside the top cap 2. A mounting bracket 11 is fixedly installed on the inner side of the top cap 2. The first bevel gear 9 is rotatably connected to the upper side of the mounting bracket 11. The top cap 2 can hold the extrusion mechanism, and the first bevel gear 9 can also be fixed to the inner wall of the top cap 2 through the mounting bracket 11, thereby achieving the above-mentioned conditions for driving the extrusion disc 12.
[0030] Furthermore, the lower half of the soil extrusion tube 1 is provided with an installation cavity 15. The collection box 5 is slidably connected to the inside of the installation cavity 15 through the slide rails on both sides. The collection box 5 can slide inside the soil extrusion tube 1 through the installation cavity 15. At the same time, the opening of the installation cavity 15 can provide position limitation for the collection box 5, so that the water after passing through the filter plate 14 can accurately drip into the inside of the collection box 5.
[0031] Furthermore, an installation rail 6 is fixedly installed on one side of the lower half of the soil extrusion tube 1. The installation rail 6 is slidably connected to the measuring box 7 via a slider. The measuring box 7 is fixedly connected to the slider. A small measuring device 16 for nutrient measurement is fixedly installed inside the measuring box 7. The small measuring device 16 is electrically connected to a display via a power cord. After the collection box 5 has collected all the water, the staff can pour the water into the small measuring device 16 and then use the small measuring device 16 to detect the fertilizer nutrients in the soil moisture. The data is then uploaded to the display screen for presentation via the power cord.
[0032] It should be noted that after the small measuring device 16 is powered by the power cord, the built-in sensor converts the detected soil nutrient data into electrical signals, which are then processed by the circuit board and displayed intuitively on the screen. This is a mature existing technology and will not be described in detail here.
[0033] Furthermore, a soil delivery pipe 3 is fixedly installed on the upper half of the soil extrusion pipe 1. The soil delivery pipe 3 is connected to the inside of the soil extrusion pipe 1. The soil delivery pipe 3 is inclined. Soil can enter the inside of the soil extrusion pipe 1 through the soil delivery pipe 3 and then fall onto the surface of the filter plate 14 so that the extrusion disc 12 can extrude it. Since the soil delivery pipe 3 is inclined, it is more conducive to the soil sliding in.
[0034] It should be noted that the diameter of the soil delivery pipe 3 is relatively large. When the soil becomes blocked, workers can use a stick to tamp the soil.
[0035] In this embodiment, as Figures 1-4 As shown in this embodiment, the principle of a soil fertilizer nutrient analyzer is as follows:
[0036] When soil needs to be compressed, the operator turns the crank handle 4, which drives the second bevel gear 10 to rotate. When the second bevel gear 10 rotates, it drives the first bevel gear 9, which meshes with it, to rotate. In this way, the first bevel gear 9 can cause the lifting screw 8, which is threadedly connected to it, to rotate and rise. Then, the extrusion disc 12, which is rotatably connected to the lifting screw 8, can be used to compress the soil.
[0037] A fixed base plate 13 is fixedly installed on the lower half of the inner side of the soil extrusion tube 1. A filter plate 14 is fixedly installed in the middle of the fixed base plate 13. A collection box 5 is installed below the filter plate 14 and is slidably connected to the inside of the soil extrusion tube 1. The size of the collection box 5 is the same as that of the filter plate 14. When the soil is extruded, the water contained in it can drip through the filter plate 14 into the collection box 5 so that the staff can test the moisture content in the soil.
[0038] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.
[0040] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A soil fertilizer nutrient analyzer, comprising a soil extrusion tube (1) and a measuring box (7) detachably connected to the soil extrusion tube (1), characterized in that: The measuring box (7) is used for detecting soil fertilizer nutrients, and the soil extrusion tube (1) is equipped with an extrusion mechanism inside; The extrusion mechanism includes an extrusion disc (12) slidably disposed inside the soil extrusion tube (1), a lifting screw (8) for vertically driving the extrusion disc (12), and a first bevel gear (9) threadedly connected to the lifting screw (8); A fixed base plate (13) is fixedly installed on the lower half of the inner side of the soil extrusion tube (1). A filter plate (14) is fixedly installed in the middle of the fixed base plate (13). A collection box (5) is provided below the filter plate (14) and is slidably connected to the inside of the soil extrusion tube (1). The size of the collection box (5) is the same as that of the filter plate (14).
2. The soil fertilizer nutrient analyzer according to claim 1, characterized in that: A top cap (2) is fixedly installed at the upper end of the soil extrusion tube (1). The top cap (2) is connected to the inside of the soil extrusion tube (1). The first bevel gear (9) is rotatably installed inside the top cap (2).
3. The soil fertilizer nutrient analyzer according to claim 2, characterized in that: An installation bracket (11) is fixedly provided on the inner side of the top cap (2), and the first bevel gear (9) is rotatably connected to the upper side of the installation bracket (11).
4. The soil fertilizer nutrient analyzer according to claim 3, characterized in that: The first bevel gear (9) is meshed with a second bevel gear (10) on one side, and a crank handle (4) is fixedly connected to the second bevel gear (10) on one side via a connecting rod. The crank handle (4) is located outside the top cap (2), and the connecting rod is rotatably connected to the top cap (2).
5. A soil fertilizer nutrient analyzer according to claim 1, characterized in that: The lower half of the soil extrusion pipe (1) is provided with an installation cavity (15), and the collection box (5) is slidably connected to the inside of the installation cavity (15) through two side slide rails.
6. The soil fertilizer nutrient analyzer according to claim 1, characterized in that: A mounting rail (6) is fixedly installed on one side of the lower half of the soil extrusion tube (1). The mounting rail (6) is slidably connected to the measuring box (7) via a slider. The measuring box (7) is fixedly connected to the slider. A small measuring device (16) for nutrient measurement is fixedly installed inside the measuring box (7). The small measuring device (16) is electrically connected to a display via a power cord.
7. A soil fertilizer nutrient analyzer according to claim 1, characterized in that: The upper half of the soil extrusion pipe (1) is fixedly provided with a soil delivery pipe (3), which is connected to the inside of the soil extrusion pipe (1) and the soil delivery pipe (3) is inclined.