A slow-release device for saline-alkali soil conditioner

CN224442799UActive Publication Date: 2026-07-03WUWEI ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUWEI ACAD OF AGRI SCI
Filing Date
2025-06-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing soil conditioners for saline-alkali land lack a slow-release mechanism, making it difficult for the conditioners to fully react with the soil. This may exacerbate soil compaction or carbon-nitrogen imbalance, prevent them from keeping pace with crop needs, and affect the stability of the microbial community.

Method used

A slow-release device for soil conditioner in saline-alkali land was designed, which includes a mixing and quantitative feeding component. The device achieves uniform mixing and quantitative release of the conditioner through motor-driven gear transmission and cylinder control, and dynamically adjusts the feeding amount by monitoring soil data with sensors.

Benefits of technology

It achieves uniform mixing and quantitative release of soil conditioner, avoids precipitation and stratification, ensures soil nutrient balance, and improves the efficiency and ecological safety of crop saline-alkali land restoration.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of agricultural engineering technology and discloses a slow-release device for saline-alkali soil conditioner. It includes a square box, with a mounting plate fixedly connected inside. A motor is fixedly connected to the left end of the mounting plate, and a gear is fixedly connected to the drive end of the motor. A cylinder is connected to the inner wall of the square box, and a connecting rod is fixedly connected to the drive end of the cylinder. A fixing plate is fixedly connected inside the square box, and a circular plate is fixedly connected to the bottom end of the connecting rod. A gear is rotatably connected to the bottom end of the fixing plate. In this utility model, the stirable slow-release device is compatible with various forms of conditioners, including solid, liquid, and suspended states, and even supports compound formulations. The stirrer, through shearing and dispersing action, uniformly mixes components of different densities, preventing heavy particles from sinking and light components from floating, ensuring a stable proportion of the released conditioner components.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural engineering technology, and in particular to a slow-release device for soil conditioner in saline-alkali land. Background Technology

[0002] A saline-alkali soil conditioner refers to a functional substance or composition developed specifically for the characteristics of saline-alkali soils. It improves soil physicochemical properties, reduces salt content, regulates pH, and enhances soil fertility. Its core function is to break the vicious cycle of "high salt, high pH, ​​low organic matter, and compacted structure" in saline-alkali land through physical, chemical, or biological means, creating a suitable environment for plant growth. It is suitable for long-term saline-alkali land remediation, balancing the sustainability of its effects with ecological safety.

[0003] A slow-release device for saline-alkali soil conditioner mainly consists of a storage bin, a release control module, a delivery pipeline and release port, and a power and control system. Physical slow release utilizes polymer materials or porous media to encapsulate the conditioner through methods such as coating and adsorption, allowing it to slowly dissolve and diffuse under conditions such as soil moisture infiltration and temperature changes. Chemical slow release relies on the degradation reaction of microcapsule wall materials or the chemical reaction between the conditioner and soil components to gradually release active substances. Biological slow release depends on the metabolism of salt-tolerant microorganisms or the release triggered by plant root exudates.

[0004] In existing technologies, without a slow-release mechanism, soil conditioners are difficult to react fully with the soil, resulting in excessively high local ion concentrations, which can exacerbate soil compaction. Alternatively, the rapid decomposition of organic matter can lead to a short-term imbalance in the carbon-nitrogen ratio of the soil, affecting the stability of the microbial community. Crops have different tolerances to the soil environment at different growth stages, and without slow-release control, the release of soil conditioners cannot be synchronized with crop needs. Therefore, a slow-release device for soil conditioners in saline-alkali land is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a slow-release device for soil conditioner in saline-alkali land, which aims to improve the problems of imbalance in soil physicochemical properties, increased risk of environmental pollution, low operating efficiency, and high dependence on manual labor in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A slow-release device for saline-alkali soil conditioner includes a square box. An installation plate is fixedly connected inside the square box. A motor is fixedly connected to the left end of the installation plate. A gear is fixedly connected to the drive end of the motor. A cylinder is connected to the inner wall of the square box. A connecting rod is fixedly connected to the drive end of the cylinder. A fixing plate is fixedly connected inside the square box. A circular plate is fixedly connected to the bottom end of the connecting rod. A gear is rotatably connected to the bottom end of the fixing plate. A telescopic rod is fixedly connected to the top end of the circular plate. Two stirring blades are fixedly connected inside each circular plate. A hollow column is fixedly connected to the bottom end of the square box. A quantitative feeding component for quantitatively dispensing materials is installed inside the square box.

[0008] As a further description of the above technical solution:

[0009] The quantitative feeding assembly includes a cylinder two. The outer wall of the cylinder two is fixedly connected to the inner wall of the square box. A connecting plate is fixedly connected to the driving end of the cylinder two. A rack is fixedly connected to the outer walls of both ends of the connecting plate. A hollow column one is fixedly connected to the inner wall of the square box. Two hollow rods one are rotatably connected inside the hollow column one. A gear three is fixedly connected to the outer wall of the two hollow rods one. A connecting rod two is rotatably connected to the inner wall of the hollow rod one. A semi-circular disk is rotatably connected to the outer wall of the two hollow rods one.

[0010] As a further description of the above technical solution:

[0011] A cylindrical filter screen is fixedly connected to the bottom of the square box, and multiple holes are opened on the outside of the hollow column 19.

[0012] As a further description of the above technical solution:

[0013] A transmission pipe is fixedly connected to the outer wall of the second hollow column, and a funnel is fixedly connected to the top of the first hollow column.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the mounting plate is fixedly connected to the top end of the fixing plate one, and a connecting rod one is slidably connected inside the fixing plate one;

[0016] As a further description of the above technical solution:

[0017] The external teeth of gear one are meshed with the external teeth of gear two, and the top end of the telescopic rod is fixedly connected to the outer wall of gear two.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the circular plate is slidably connected to the inner wall of the hollow column II, and the bottom ends of the two racks are slidably connected to the inner wall of the square box.

[0020] As a further description of the above technical solution:

[0021] The outer teeth of the two racks are meshed with the outer teeth of the two gears, and the outer surfaces of the two semi-discs are in contact with the inner wall of the hollow column.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, after the motor starts, it drives gear one to rotate. Gear one meshes with gear two, causing gear two to rotate. At the same time, cylinder one drives connecting rod one to move up and down, thereby moving the circular plate up and down. Due to the presence of the telescopic rod, the circular plate will also rotate under the drive of gear two while moving up and down with connecting rod one. When the circular plate rotates, the stirring blades fixed on it will stir the saline-alkali soil conditioner inside, preventing the conditioner from settling or stratifying, making it evenly mixed, and ensuring the consistency of the composition when released. By continuously or periodically stirring the conditioner in the storage bin, the sedimentation and stratification of solid particles or liquid suspensions are prevented.

[0024] 2. In this utility model, cylinder two pushes the connecting plate, which in turn drives the racks connected at both ends to continue moving. Through meshing with gear three, gear three moves. When gear three rotates, it drives the hollow rod one fixed to the inner wall to rotate. When the hollow rod one rotates, it drives the semi-circular disk fixed to the outer wall to rotate, achieving the benefit of quantitative feeding. The quantitative feeding function can accurately set the release dosage of the amendment based on the degree of salinization of saline-alkali land, soil type, and crop salt tolerance characteristics. By monitoring soil pH, conductivity, and other data in real time through sensors, and combining with preset programs, the feeding amount is dynamically adjusted to avoid soil nutrient imbalance due to excessive application or failure to achieve the improvement effect due to insufficient dosage. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a slow-release device for a soil conditioner in saline-alkali land proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a square box for a slow-release device of a soil conditioner for saline-alkali land proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the telescopic rod of a slow-release device for saline-alkali soil conditioner proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the funnel structure of a slow-release device for saline-alkali soil conditioner proposed in this utility model.

[0029] Legend:

[0030] 1. Square box; 2. Mounting plate; 3. Motor; 4. Gear 1; 5. Cylinder 1; 6. Connecting rod 1; 7. Fixing plate 1; 8. Circular plate; 9. Gear 2; 10. Telescopic rod; 11. Stirring blade; 12. Cylinder 2; 13. Connecting plate; 14. Rack; 15. Hollow column 1; 16. Hollow rod 1; 17. Gear 3; 18. Connecting rod 2; 19. Hollow column 2; 20. Cylindrical filter screen; 21. Transmission pipe; 22. Funnel; 23. Semi-circular disc. 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 to 3 This utility model provides one embodiment: a slow-release device for saline-alkali soil conditioner, comprising a square box 1. The square box 1 serves to stabilize and protect the internal components, preventing external factors from affecting their operation. A mounting plate 2 is fixedly connected inside the square box 1, providing a stable support structure for the mounting plate 2 and ensuring its position remains fixed during device operation, preventing deformation or displacement due to vibration. A motor 3 is fixedly connected to the left end of the mounting plate 2, providing a mounting surface and support for the motor 3, thus securing and stabilizing it. To prevent the motor 3 from shaking and shifting during operation, a gear 4 is fixedly connected to the drive end of the motor 3. The motor 3 drives the gear 4 to rotate, providing the initial power source for the transmission system of the entire device. A cylinder 5 is connected to the inner wall of the square box 1. The inner wall of the square box 1 provides installation space and fixed support for the cylinder 5, preventing displacement of the cylinder 5 during extension and retraction. A connecting rod 6 is fixedly connected to the drive end of the cylinder 5. The cylinder 5 transmits the linear extension and retraction thrust or pull force to the connecting rod 6 through the drive end, causing the connecting rod 6 to produce linear movement and transmitting power to subsequent components.

[0033] A fixed plate 7 is fixedly connected inside the square box 1, providing fixed support for the fixed plate 7 and enhancing the stability of the internal structure of the device. A circular plate 8 is fixedly connected to the bottom end of the connecting rod 6, which transmits the linear motion of the cylinder 5 to the circular plate 8, causing the circular plate 8 to move up and down. A gear 9 is rotatably connected to the bottom end of the fixed plate 7, providing a fulcrum and support for the gear 9, driving the subsequent components to rotate. A telescopic rod 10 is fixedly connected to the top end of the circular plate 8, providing a mounting point for the telescopic rod 10. When the circular plate 8 moves under the action of the connecting rod 6, the telescopic rod 10... It can extend and retract accordingly. Two stirring blades 11 are fixedly connected inside the circular plate 8. The circular plate 8 serves as the mounting carrier for the stirring blades 11, driving the stirring blades 11 to move up and down or rotate. A hollow column 19 is fixedly connected to the bottom of the square box 1. The square box 1 provides a stable mounting base for the hollow column 19, ensuring that the hollow column 19 remains vertical and stable during the operation of the device, preventing tilting due to external forces or vibrations. A quantitative feeding component for quantitatively dispensing materials is installed inside the square box 1. The square box 1 provides a space for the quantitative feeding component and a mounting base, which can control the amount of soil conditioner added and achieve quantitative slow release.

[0034] Reference Figure 3 and Figure 4 The quantitative feeding component includes cylinder 12, which serves as the drive source, driving the subsequent components to operate. The outer wall of cylinder 12 is fixedly connected to the inner wall of the square box 1, providing a stable mounting support for cylinder 12. The fixed connection method of its inner wall ensures that cylinder 12 is stable in position during operation, avoiding displacement due to extension and retraction. A connecting plate 13 is fixedly connected to the drive end of cylinder 12. Cylinder 12 transmits linear extension and retraction force to the connecting plate 13 through the drive end. The connecting plate 13 acts as a force receiving and transmission component, transmitting the power of the cylinder to the subsequent components. Racks 14 are fixedly connected to both outer walls of the connecting plate 13, providing a mounting base for racks 14 and driving racks 14 to perform linear operation. A hollow column 15 is fixedly connected to the inner wall of the square box 1, providing support for the hollow column 15 and ensuring that the hollow column 15 remains fixed during device operation, providing a stable installation environment for the internal rotating components.

[0035] The hollow column 15 is rotatably connected to two hollow rods 16. The interior of the hollow column 15 provides rotation space and support for the hollow rods 16, preventing swaying and deviation during operation. Gears 3 17 are fixedly connected to the outer walls of the two hollow rods 16. When gears 3 17 rotate, they drive the hollow rods 16 to rotate, which in turn drives the subsequent components. Connecting rod 2 18 is rotatably connected to the inner wall of the hollow rods 16. The inner wall of the hollow rods 16 provides a rotation fulcrum for the connecting rod 2 18, so that the connecting rod 2 18 provides stability for the subsequent components when the hollow rods 16 rotate. Semicircular disks 23 are rotatably connected to the outer walls of the two hollow rods 16. The outer walls of the hollow rods 16 provide rotation support for the semicircular disks 23. The semicircular disks 23 rotate under the drive of the hollow rods 16, and the release of materials is controlled by the semicircular shape.

[0036] Reference Figures 2 to 4 A cylindrical filter screen 20 is fixedly connected to the bottom of the square box 1. The bottom of the square box 1 provides a fixed position for the cylindrical filter screen 20. The cylindrical filter screen 20, relying on the structure of the square box 1, filters the falling soil conditioner to prevent clogging of the transmission channel. Multiple holes are opened on the outside of the hollow column 2 19, through which the soil conditioner is slowly released into the surrounding soil. A transmission pipe 21 is fixedly connected to the outer wall of the hollow column 2 19. The hollow column 2 19 serves as the mounting carrier for the transmission pipe 21, and the transmission pipe 21 is fixedly connected to the hollow column 2 19. The conveying pipe 21 is connected to the internal material conveying path. The top of the hollow column 15 is fixedly connected to the funnel 22. The hollow column 15 provides vertical support for the funnel 22. With the support of the hollow column 15, the funnel 22 guides the soil conditioner to fall smoothly into the hollow column 15. The bottom of the mounting plate 2 is fixedly connected to the top of the fixing plate 7. The fixing plate 7 provides vertical support for the mounting plate 2. The fixed connection enhances the structural stability of both, ensuring that the components such as the motor 3 on the mounting plate 2 remain horizontal during operation and preventing the gear transmission accuracy from being affected by shaking.

[0037] A connecting rod 6 is slidably connected inside the fixed plate 7. The interior of the fixed plate 7 provides a sliding guide for the connecting rod 6. The movement trajectory of the connecting rod 6 is constrained by precisely machined channels, ensuring that it slides smoothly in the vertical direction under the drive of the cylinder 5, avoiding deviation that would affect the movement of the circular plate 8. The external teeth of gear 4 and gear 9 are meshed. The meshing design of gear 4 and gear 9 realizes power transmission and movement direction conversion, generating power. The top end of the telescopic rod 10 is fixedly connected to the outer wall of gear 9. The outer wall of gear 9 provides the rotational power input end for the telescopic rod 10. Through the fixed connection, the telescopic rod 10 rotates synchronously with gear 9. At the same time, when the circular plate 8 moves up and down, the telescopic rod 10 can extend and retract to adjust its length. Through the guiding effect, the outer wall of the circular plate 8 is slidably connected to the hollow column 2. The inner wall of hollow column 19 provides a sliding track for circular plate 8, ensuring that circular plate 8 moves smoothly up and down along the inner wall of hollow column 19 under the drive of connecting rod 6. The bottom ends of the two racks 14 are slidably connected to the inner wall of square box 1. The inner wall of square box 1 provides sliding support and guidance for racks 14, ensuring the stability of operation and avoiding shaking or deviation. The outer teeth of the two racks 14 are meshed with the outer teeth of the two gears 17. The meshing structure of racks 14 and gears 17 converts the linear motion of cylinder 12 into the rotational motion of gears 17, ensuring smooth power transmission during transmission. The outer surfaces of the two semi-circular disks 23 are in contact with the inner wall of hollow column 15. The inner wall of hollow column 15 provides movement limit and support for semi-circular disks 23. Through the cooperation of the components, the effect of quantitative feeding of the modifier is achieved.

[0038] Working principle: When the slow-release device for saline-alkali soil conditioner is working, the motor 3 installed inside the square box 1 starts, and the motor 3 drives the gear 4 connected to the drive end to rotate. The gear 4 meshes with the gear 9, which in turn drives the telescopic rod 10 to rotate. The telescopic rod 10 then drives the circular plate 8 to rotate, causing the stirring blades 11 fixed inside the circular plate 8 to rotate synchronously and stir the soil conditioner. At the same time, the cylinder 5 inside the square box 1 starts synchronously, and the cylinder 5 pushes the connecting rod 6 connected to the drive end to move linearly, causing the circular plate 8 fixed at the bottom of the connecting rod 6 to move up and down inside the hollow column 19, achieving the effect of stirring and lifting at the same time. This ensures that the soil conditioner is kept in a uniformly mixed state before release. The hollow column 19 at the bottom of the square box 1 has multiple holes, allowing the conditioner to be slowly released into the surrounding soil through the holes. The cylindrical filter screen 20 fixed at the bottom of the square box 1 prevents soil from entering the hollow column 19 and causing blockage.

[0039] When the slow-release device for soil conditioner in saline-alkali land dispenses a quantitative amount of soil conditioner, cylinder 12 inside the square box 1 is activated, driving the connecting plate 13 fixed at its drive end to move linearly. When the connecting plate 13 moves, it drives the rack 14 connected at both ends to slide linearly on the inner wall of the square box 1. The rack 14 transmits power through its meshing with gear 17, causing gear 17 to drive the hollow rod 16 inside to rotate synchronously. When the hollow rod 16 rotates, it drives the semi-circular disk 23 connected to it to rotate. The semi-circular disk 23 contacts the inner wall of the hollow column 15 and controls the flow rate of soil conditioner falling from the funnel 22 into the hollow column 15 by changing the opening and closing angle. At the same time, the connecting rod 18 connected to the inner wall of the hollow rod 16 provides support for the semi-circular disk 23, thus achieving the effect of quantitative dispensing of soil conditioner.

[0040] 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 saline soil conditioner slow release device comprising a square box (1) characterised in that: The square box (1) is fixedly connected to an installation plate (2). The left end of the installation plate (2) is fixedly connected to a motor (3). The drive end of the motor (3) is fixedly connected to a gear (4). The inner wall of the square box (1) is connected to a cylinder (5). The drive end of the cylinder (5) is fixedly connected to a connecting rod (6). The inside of the square box (1) is fixedly connected to a fixing plate (7). The bottom end of the connecting rod (6) is fixedly connected to a circular plate (8). The bottom end of the fixing plate (7) is rotatably connected to a gear (9). The top end of the circular plate (8) is fixedly connected to a telescopic rod (10). The inside of the circular plate (8) is fixedly connected to two stirring blades (11). The bottom end of the square box (1) is fixedly connected to a hollow column (19). The inside of the square box (1) is equipped with a quantitative feeding component for quantitative material feeding.

2. A saline soil amendment slow release device according to claim 1, characterised in that: The quantitative feeding assembly includes a second cylinder (12), the outer wall of which is fixedly connected to the inner wall of the square box (1), a connecting plate (13) is fixedly connected to the driving end of the second cylinder (12), a rack (14) is fixedly connected to both ends of the outer wall of the connecting plate (13), a hollow column (15) is fixedly connected to the inner wall of the square box (1), two hollow rods (16) are rotatably connected inside the hollow column (15), a gear (17) is fixedly connected to the outer wall of the two hollow rods (16), a connecting rod (18) is rotatably connected to the inner wall of the hollow rods (16), and a semi-circular disk (23) is rotatably connected to the outer wall of the two hollow rods (16).

3. A saline soil amendment slow release device according to claim 1, characterized in that: A cylindrical filter screen (20) is fixedly connected to the bottom of the square box (1), and multiple holes are opened on the outside of the hollow column (19).

4. A saline soil amendment slow release device according to claim 2, characterised in that: A transmission pipe (21) is fixedly connected to the outer wall of the second hollow column (19), and a funnel (22) is fixedly connected to the top of the first hollow column (15).

5. The saline soil amendment slow-release device of claim 1, wherein: The bottom end of the mounting plate (2) is fixedly connected to the top end of the fixing plate (7), and the fixing plate (7) is slidably connected to the connecting rod (6).

6. A saline soil amendment slow release device according to claim 1, characterized in that: The outer teeth of gear one (4) are meshed with the outer teeth of gear two (9), and the top end of the telescopic rod (10) is fixedly connected to the outer wall of gear two (9).

7. A saline soil amendment slow release device according to claim 2, characterised in that: The outer wall of the circular plate (8) is slidably connected to the inner wall of the hollow column (19), and the bottom ends of the two racks (14) are slidably connected to the inner wall of the square box (1).

8. A saline soil amendment slow release device according to claim 2, characterized in that: The outer teeth of the two racks (14) are meshed with the outer teeth of the two gears (17), and the outer surfaces of the two semi-discs (23) are in contact with the inner wall of the hollow column (15).