Gumbo clay soil moisture measurement device
By combining the cutting blade and the stirring cylinder, the problem of long drying time for large samples was solved, enabling efficient and accurate detection of soil moisture content in albic soil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAMUSI BRANCH OF HEILONGJIANG ACADEMY OF AGRI SCI
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-29
AI Technical Summary
Existing soil moisture content measuring devices have slow internal moisture evaporation when drying large samples, resulting in low detection efficiency.
Large samples are cut into smaller pieces using a slitting blade, stirred by a stirring cylinder, and uniformly heated by a circumferentially distributed drying nozzle. The weight of the samples is measured in real time by a weight sensor to ensure data accuracy.
It significantly shortens drying time, improves testing efficiency, reduces human error, and ensures the accuracy of test data and the practicality of the device.
Smart Images

Figure CN224303496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil moisture content detection technology, specifically to a device for measuring the moisture content of albic soil. Background Technology
[0002] Albic soil is a type of soil formed under forest and meadow vegetation in temperate semi-humid and humid areas on slightly sloping hills with a light upper layer and a clay lower layer. It is formed through processes such as albicification and has a dark humus surface layer, a grayish-white subsurface layer (albic layer), and a dark brown clayey sedimentary layer. Soil moisture content refers to the amount of water contained in the soil and is one of the important physical properties of soil. It has a crucial impact on plant growth, soil fertility, and hydrological cycle. The soil moisture content of albic soil needs to be tested using appropriate methods based on its unique soil structure to ensure data accuracy. The oven-drying method is a commonly used standard method. Its principle is to remove soil moisture by high-temperature drying and calculate the ratio of the mass difference before and after drying to the mass of the dried soil to obtain the moisture content.
[0003] Existing soil moisture content measuring devices require drying the sample before use. However, when drying large samples, the moisture inside the sample evaporates slowly, which increases the drying time and reduces the efficiency of the testing work. Utility Model Content
[0004] The purpose of this invention is to provide a device for measuring the soil moisture content of albic soil, in order to solve the problem mentioned in the background art that when drying large samples, the moisture inside the sample evaporates slowly, thereby increasing the drying time and reducing the efficiency of the detection work.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for measuring the moisture content of albic soil, comprising a protective shell with a cavity on its front surface, a maintenance door panel on the front surface of the protective shell, a material support platform fixedly connected to the bottom surface of the cavity of the protective shell, an air inlet pipe fixedly connected to the rear surface of the protective shell, a drying nozzle fixedly connected to the bottom surface of the cavity of the protective shell, an electric push rod fixedly connected to the upper surface of the protective shell, a linkage support fixedly connected to the output end of the electric push rod, the lower end of the linkage support penetrating the upper surface of the protective shell, a blade mounting plate fixedly connected to the lower end of the linkage support, a cutting blade fixedly connected to the lower surface of the blade mounting plate, an exhaust opening on the side surface of the protective shell, and a stirring mechanism on the surface of the protective shell, which drives a transmission gear to rotate via a drive motor, causing the transmission gear to rotate a linkage tooth block, a support rotating block, and a stirring cylinder to detect the sample.
[0006] Preferably, the material support platform is cylindrical, with a groove on the upper surface and a weight sensor on the bottom surface. The air inlet pipe is connected to the drying nozzles, which are arranged in a circumferential array.
[0007] The cylindrical design, which adopts the above technical solution, conforms to the principles of mechanics and can evenly distribute pressure when bearing materials, thereby enhancing stability and preventing unstable placement of materials due to uneven local stress. The groove can effectively prevent soil samples from rolling or slipping during the testing process, accurately positioning the samples, ensuring a stable testing environment, reducing interference from external factors, and ensuring reliable testing data.
[0008] Preferably, the bottom surface of the material support platform is designed with a filter screen, the linkage support column and the protective shell are slidably connected, and the cutting blades are arranged in a circumferential array.
[0009] By adopting the above technical solution, the filter screen design facilitates the flow of hot air during the drying process. Hot air can pass through the filter screen from the bottom and fully contact the soil sample, accelerating moisture evaporation and improving drying efficiency. The filter screen can prevent soil particles from falling off, avoid clogging other parts of the equipment, ensure the normal operation of the device, and reduce maintenance costs.
[0010] Preferably, the exhaust opening is designed at an angle, and the width of the tool mounting plate is less than the width of the groove of the material support platform.
[0011] Using the above technical solution, the inclined exhaust vent can effectively prevent external dust and debris from entering the device, avoiding contamination of soil samples and affecting test results. When venting moisture, the inclined vent can prevent condensed water droplets from flowing back into the device, protecting the internal structure of the equipment and extending the service life of the device.
[0012] Preferably, the stirring mechanism includes a drive motor, which is fixedly connected to the upper surface of the protective shell. A transmission gear is installed inside the protective shell. A support rotating block is installed on the top surface of the cavity of the protective shell. A linkage tooth block is fixedly connected to the upper outer surface of the support rotating block. A compression stirring cylinder is fixedly connected to the lower inner surface of the support rotating block.
[0013] Using the above technical solution, the drive motor serves as the power source, providing stable power output. The transmission gears transmit the rotational motion of the drive motor to the linkage gear block, achieving effective power transmission. The support block plays a supporting and connecting role, ensuring the stable rotation of the stirring cylinder.
[0014] Preferably, the output end of the drive motor penetrates the upper surface of the protective housing, the output end of the drive motor is fixedly connected to the shaft of the transmission gear, and the transmission gear and the protective housing are rotatably connected.
[0015] By adopting the above technical solution, the output end of the drive motor is fixedly connected to the shaft of the transmission gear, which can ensure that the power of the drive motor is efficiently transmitted to the transmission gear, reduce power loss, and ensure the stability and reliability of the transmission.
[0016] Preferably, the supporting rotating block and the protective shell are rotatably connected. The upper end of the supporting rotating block is annular, and the lower end of the supporting rotating block is provided with a vertical baffle. The transmission gear and the linkage gear block are meshed. The vertical baffle of the supporting rotating block is perpendicular to the stirring cylinder.
[0017] By adopting the above technical solution, the support rotating block is rotatably connected to the protective shell, making the support rotating block more flexible and stable during rotation, reducing frictional resistance, ensuring the smooth rotation of the stirring cylinder, and the annular design at the upper end of the support rotating block is conducive to close cooperation with the linkage tooth block.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the device for measuring the soil moisture content of albic soil:
[0019] 1. This device cuts soil samples with a cutting blade and, combined with the stirring action of a stirring cylinder, breaks large samples into fine particles, greatly increasing the contact area between the sample and hot air. Combined with a circumferentially arrayed drying nozzle, it achieves uniform and efficient drying, significantly shortens drying time, and improves detection efficiency.
[0020] 2. The weight sensor on the bottom surface of the material support platform can accurately measure the weight of the sample before and after drying in real time. Combined with the integrated operation process of the device, it reduces manual intervention and human error. At the same time, the closed structure of the protective shell and the inclined design of the exhaust vent ensure a stable drying environment and effectively prevent dust and moisture, ensuring the accuracy of the test data.
[0021] 3. The device features a compact and reasonable design for all components. For example, the sliding connection of the linkage support column ensures accurate cutting, the meshing transmission of the transmission gear and the linkage tooth block ensures stable mixing, and the maintenance door facilitates equipment maintenance. Overall, the device is more practical and durable, making it suitable for moisture content testing of specific soils such as alkaline soil. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the protective shell and the maintenance door panel of this utility model;
[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the protective shell and the air intake pipe of this utility model;
[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the drive motor and the transmission gear of this utility model;
[0025] Figure 4This is a three-dimensional structural diagram of the connection between the electric push rod and the linkage support column of this utility model;
[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the supporting rotating block and the stirring cylinder of this utility model;
[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the tool mounting plate and the slitting blade of this utility model.
[0028] In the diagram: 1. Protective outer shell; 2. Maintenance door panel; 3. Material support platform; 4. Air inlet pipe; 5. Drying nozzle; 6. Electric push rod; 7. Linkage support column; 8. Blade mounting plate; 9. Slitting blade; 10. Exhaust vent; 11. Drive motor; 12. Transmission gear; 13. Support rotating block; 14. Linkage gear block; 15. Stirring cylinder. Detailed Implementation
[0029] 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.
[0030] Existing technologies for measuring the moisture content of albic soil mainly include detection methods based on electrical properties, such as time-domain reflectometry and frequency-domain reflectometry. These methods measure moisture content by measuring electromagnetic wave propagation or capacitance changes, and are characterized by speed and portability. There is also the drying method, which calculates moisture content by weighing the soil after high-temperature drying. The results are accurate but time-consuming and labor-intensive. Ground-penetrating radar (GPR) can detect the layers and distribution of albic soil without damaging the soil structure, combined with moisture content and dielectric constant information obtained by TDR and other methods, thus indirectly providing a reference for moisture content measurement.
[0031] Please see Figure 1-6This utility model provides a technical solution: a device for measuring the moisture content of white clay soil, including a protective shell 1, a maintenance door 2, a material support platform 3, an air inlet pipe 4, a drying nozzle 5, an electric push rod 6, a linkage support column 7, a blade mounting plate 8, a slitting blade 9, an exhaust opening 10, a drive motor 11, a transmission gear 12, a support rotating block 13, a linkage toothed block 14, and a stirring cylinder 15. The protective shell 1 has a cavity on its front surface, and the maintenance door 2 is provided on the front surface of the protective shell 1. The material support platform 3 is fixedly connected to the bottom surface of the cavity of the protective shell 1. An air inlet pipe 4 is fixedly connected to the rear surface of the protective shell 1, and a drying nozzle 5 is fixedly connected to the bottom surface of the cavity of the protective shell 1. The material support platform 3 is cylindrical in design, and a groove is provided on the upper surface of the material support platform 3. A weight sensor is provided on the bottom surface of the material support platform 3. The air inlet pipe 4 is connected to the drying nozzle 5, and the drying nozzle 5 is distributed in a circumferential array. When the maintenance door 2 is opened, the white clay sample is placed into the groove of the material support platform 3. The weight sensor on the bottom surface of the material support platform 3 performs an initial weight measurement of the sample and records the data as a baseline before drying.
[0032] An electric push rod 6 is fixedly connected to the upper surface of the protective shell 1. A linkage support column 7 is fixedly connected to the output end of the electric push rod 6. The lower end of the linkage support column 7 penetrates the upper surface of the protective shell 1. A blade mounting plate 8 is fixedly connected to the lower end of the linkage support column 7. The bottom surface of the material support platform 3 is designed with a filter screen. The linkage support column 7 and the protective shell 1 are slidably connected. The slitting blades 9 are arranged in a circumferential array. The exhaust opening 10 is designed with an inclination. The width of the blade mounting plate 8 is smaller than the width of the groove of the material support platform 3. When the electric push rod 6 is activated, its output end drives the linkage support column 7 to slide down along the protective shell 1, so that the slitting blades 9 arranged in a circumferential array below the blade mounting plate 8 contact the sample and cut it, dividing the large sample into small pieces and increasing the heating area.
[0033] A slitting blade 9 is fixedly connected to the lower surface of the blade mounting plate 8. An exhaust vent 10 is provided on the side surface of the protective shell 1. The stirring mechanism includes a drive motor 11, which is fixedly connected to the upper surface of the protective shell 1. A transmission gear 12 is installed inside the protective shell 1. A support rotating block 13 is installed on the top surface of the cavity of the protective shell 1. A linkage tooth block 14 is fixedly connected to the upper outer surface of the support rotating block 13. A pressing and stirring cylinder 15 is fixedly connected to the lower inner surface of the support rotating block 13. When the drive motor 11 is started, it drives the transmission gear 12 to rotate. Through the meshing transmission with the linkage tooth block 14, the support rotating block 13 drives the stirring cylinder 15 to rotate, stirring the slitting sample. Hot air is delivered to the drying nozzle 5 through the air inlet pipe 4. The circumferential array of nozzles sprays air evenly to heat the sample. The evaporated water vapor is discharged through the exhaust vent 10.
[0034] A stirring mechanism is provided on the surface of the protective shell 1. The mechanism drives the transmission gear 12 to rotate via the drive motor 11, which in turn drives the linkage block 14, the support rotating block 13, and the stirring cylinder 15 to rotate for sample testing. The output end of the drive motor 11 passes through the upper surface of the protective shell 1 and is fixedly connected to the rotating shaft of the transmission gear 12. The transmission gear 12 and the protective shell 1 are rotatably connected. The support rotating block 13 is also rotatably connected to the protective shell 1. The upper end of the support rotating block 13 is a ring design, and the lower end of the support rotating block 13 is provided with a vertical baffle. The transmission gear 12 and the linkage block 14 are meshed. The vertical baffle of the support rotating block 13 is perpendicular to the stirring cylinder 15. After drying, the weight sensor of the material support platform 3 measures the weight of the sample again. The moisture content of the white clay sample is calculated by the difference between the initial weight and the dried weight.
[0035] Working principle: When using this alkaline soil moisture content measuring device, the alkaline soil sample is first placed in the groove of the material support platform 3. The initial weight is recorded by the weight sensor on its bottom surface. The electric push rod 6 drives the linkage support column 7 to lower the cutting blade 9, cutting the sample into small pieces. The drive motor 11 meshes with the linkage tooth block 14 through the transmission gear 12, causing the support rotating block 13 to drive the stirring cylinder 15 to rotate and stir the sample. Hot air is sprayed out from the drying nozzle 5 through the air inlet pipe 4 to evenly heat the sample. Water vapor is discharged from the exhaust opening 10. The weight sensor measures the weight of the sample after drying. The moisture content of the alkaline soil is calculated by the weight difference before and after drying, which increases the overall practicality.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for measuring the moisture content of albic soil, comprising a protective shell (1) having a cavity on its front surface, and a maintenance door (2) being provided on the front surface of the protective shell (1), characterized in that: A material support platform (3) is fixedly connected to the bottom surface of the cavity of the protective shell (1). An air inlet pipe (4) is fixedly connected to the rear surface of the protective shell (1). A drying nozzle (5) is fixedly connected to the bottom surface of the cavity of the protective shell (1). An electric push rod (6) is fixedly connected to the upper surface of the protective shell (1). A linkage support column (7) is fixedly connected to the output end of the electric push rod (6). The lower end of the linkage support column (7) penetrates the upper surface of the protective shell (1). A knife mounting plate (8) is fixedly connected to the lower end of the linkage support column (7). A slitting blade (9) is fixedly connected to the lower surface of the knife mounting plate (8). An exhaust opening (10) is provided on the side surface of the protective shell (1). A stirring mechanism is provided on the surface of the protective shell (1). The mechanism drives the transmission gear (12) to rotate through the drive motor (11), which in turn drives the linkage tooth block (14), the support rotating block (13), and the stirring cylinder (15) to rotate for sample detection.
2. The apparatus for determining the soil moisture content of albic soil according to claim 1, characterized in that: The material support platform (3) is cylindrical in shape, and the upper surface of the material support platform (3) is provided with a groove, and the bottom surface of the material support platform (3) is provided with a weight sensor. The air inlet pipe (4) is connected to the drying nozzle (5), and the drying nozzle (5) is distributed in a circumferential array.
3. The apparatus for measuring the soil moisture content of albic soil according to claim 1, characterized in that: The bottom surface of the material support platform (3) is designed with a filter screen, the linkage support column (7) and the protective shell (1) are connected in a sliding manner, and the cutting blades (9) are arranged in a circumferential array.
4. The soil moisture content measuring device for albic soil according to claim 1, characterized in that: The exhaust opening (10) is designed at an angle, and the width of the tool mounting plate (8) is less than the width of the groove of the material support platform (3).
5. The apparatus for determining the soil moisture content of albic soil according to claim 1, characterized in that: The stirring mechanism includes a drive motor (11), which is fixedly connected to the upper surface of the protective shell (1). A transmission gear (12) is installed inside the protective shell (1). A support rotating block (13) is installed on the top surface of the cavity of the protective shell (1). A linkage tooth block (14) is fixedly connected to the upper outer surface of the support rotating block (13). A pressing stirring cylinder (15) is fixedly connected to the lower inner surface of the support rotating block (13).
6. The soil moisture content measuring device for albic soil according to claim 5, characterized in that: The output end of the drive motor (11) penetrates the upper surface of the protective shell (1). The output end of the drive motor (11) is fixedly connected to the shaft of the transmission gear (12). The transmission gear (12) and the protective shell (1) are rotatably connected.
7. The apparatus for determining the soil moisture content of albic soil according to claim 5, characterized in that: The supporting rotating block (13) and the protective shell (1) are rotatably connected. The upper end of the supporting rotating block (13) is a ring design, and the lower end of the supporting rotating block (13) is provided with a vertical baffle. The transmission gear (12) and the linkage gear block (14) are meshed. The vertical baffle of the supporting rotating block (13) is perpendicular to the stirring cylinder (15).