A device for simultaneously preventing and controlling soil salinization and soil-borne diseases

Abstract

The utility model discloses a device for preventing and controlling soil salinization and soil-borne disease simultaneously, and particularly relates to the field of soil treatment, which comprises a cart, a first electric push rod fixedly connected to the cart, an installation frame fixedly connected to the output end of the first electric push rod, the first electric push rod being used to drive the installation frame to move in the vertical direction, two symmetrical auxiliary lifting assemblies installed on the installation frame, a servo motor fixedly connected to the installation frame, a variable distance rod fixedly connected to the output end of the servo motor, the variable distance rod being rotatably connected to the installation frame, the servo motor being used to drive the variable distance rod to rotate, and a plurality of grooves distributed in the variable distance rod according to the equiaxial interval of helical lines, the groove interval being sparse in front and dense in back. The utility model integrates the functions of soil loosening, variable distance adjustment and deep liquid injection, realizes accurate directional pesticide application according to the root distribution of different crops and the soil condition, directly delivers the improving agent and the pesticide to the active layer of the root system, and significantly improves the utilization rate of the pesticide and the prevention and control effect.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, and more specifically, to a device for simultaneously preventing and controlling soil salinization and soil-borne diseases. Background Technology

[0002] Soil salinization and soil-borne diseases are two key obstacles to the sustainable development of modern agriculture. Soil salinization leads to root dehydration and nutrient absorption obstruction, causing physiological drought and ion toxicity, which severely reduces crop yield and quality. Soil-borne diseases are caused by the accumulation and spread of pathogenic microorganisms in the soil, which directly infect crop roots, causing root rot, wilting and other diseases, often resulting in devastating losses. At present, agricultural production usually adopts separate treatment methods, such as large-scale irrigation to leach salt or application of soil conditioners to alleviate salinization; and chemical root irrigation or soil fumigation to control soil-borne diseases, but the control effect is limited and it is easy to cause non-point source pollution.

[0003] In existing technologies, such as patent CN220528514U, a device is proposed to simultaneously control soil salinization and soil-borne diseases. The device injects the liquid medicine into the soil by injection. However, the spacing between the injection points is not adjustable, making it difficult to adapt to the differences in root distribution of different crops and soil conditions. This results in overlapping and waste of medicine or even phytotoxicity. At the same time, it lacks an effective anti-clogging mechanism and is prone to clogging when operating in heavy clay soil. This not only causes interruption of application and affects the uniformity of medicine distribution, but also makes the solidified blockage difficult to clean, which seriously reduces the operational reliability and service life of the device.

[0004] In summary, to improve application efficiency and pesticide utilization, it is necessary to address the problems of existing technologies, such as limited functionality, inability to adjust application points, susceptibility to clogging, low pesticide utilization, and inability to achieve coordinated and efficient operation of salinization control and soil-borne disease management. The goal is to enable the device to perform precise and targeted pesticide application based on the root distribution of different crops and soil conditions. Summary of the Invention

[0005] This utility model provides a device for simultaneously controlling soil salinization and soil-borne diseases. The problem to be solved is that existing technologies generally have single functions, cannot be adjusted in terms of location, are prone to clogging, and have low agent utilization rates, making it impossible to achieve synergistic and efficient operation of salinization control and soil-borne disease treatment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for simultaneously preventing and controlling soil salinization and soil-borne diseases, comprising a trolley, a first electric push rod fixedly connected to the trolley, an installation frame fixedly connected to the output end of the first electric push rod, the first electric push rod being used to drive the installation frame to move vertically, two symmetrical auxiliary lifting components being installed on the installation frame, a servo motor fixedly connected to the installation frame, a pitch rod fixedly connected to the output end of the servo motor, the pitch rod being rotatably connected to the installation frame, the servo motor being used to drive the pitch rod to rotate, the pitch rod having a plurality of axially spaced grooves distributed in a spiral pattern with the groove spacing being sparser at the front and denser at the back, a slider being slidably connected to the pitch rod, a limit post being fixedly connected to the slider, the limit post being slidably connected to the groove, a spray rod being fixedly connected to the slider, a conical head being fixedly connected to the bottom of the spray rod, and a plurality of water outlet holes being opened at the end of the spray rod near the conical head.

[0007] In a preferred embodiment, the auxiliary lifting assembly includes two racks fixedly connected to the mounting bracket, two gears respectively meshing with one side of the two racks, and a connecting rod fixedly connected between the two gears, the connecting rod being rotatably connected to the trolley.

[0008] In a preferred embodiment, a number of limiting sleeves are fixedly connected to the trolley, the limiting sleeves are slidably connected to the rack, and two symmetrical guide rods are provided on both sides of the pitch rod. The guide rods are fixedly connected to the mounting frame and are slidably connected to the slider.

[0009] In a preferred embodiment, an angle control component is installed at the front end of the mounting frame. The output end of the angle control component is connected to a rotating shaft. The rotating shaft and the mounting frame are rotatably connected. The angle control component is used to drive the rotating shaft to rotate. Several loosening blades are fixedly connected to the rotating shaft.

[0010] In a preferred embodiment, the angle control assembly includes a second electric push rod rotatably connected to the mounting bracket and a U-shaped frame rotatably connected to the output end of the second electric push rod. The U-shaped frame and the rotating shaft are fixedly connected, and the second electric push rod is used to drive the U-shaped frame to move along a preset direction.

[0011] In a preferred embodiment, a piston is slidably connected inside the injection rod, and a compression spring is fixedly connected between the piston and the conical head.

[0012] In a preferred embodiment, two water tanks and two controllers are fixedly connected to the trolley, and the controllers are used to control the operation of various electronic devices in the device.

[0013] In a preferred embodiment, a main delivery pipe is fixedly connected to the mounting bracket, the main delivery pipe and the water storage tank are connected by a pipeline, a branch delivery pipe is fixedly connected between the main delivery pipe and the spray bar, and a control valve is fixedly connected to the branch delivery pipe.

[0014] The beneficial effects of this utility model are as follows: 1. This utility model integrates soil loosening, pitch adjustment, and deep injection functions. It uses an adjustable-angle soil loosening blade to pre-break the soil and create channels. Then, the lateral spacing of multiple spraying rods is infinitely adjusted through a pitch lever mechanism. Combined with electric lifting to control the insertion depth, it achieves precise and directional application of pesticides according to the root distribution of different crops and soil conditions. It delivers the amendment and pesticide directly to the root active layer, significantly improving the pesticide utilization rate and control effect, while avoiding the waste of a large amount of irrigation water and pesticides.

[0015] 2. This utility model effectively solves the problems of clogging, jamming, and unstable operation that are prone to occur in traditional liquid injection devices in heavy clay soil by setting a piston and compression spring inside the injection rod to form a dynamic anti-clogging mechanism, thus ensuring the reliability and efficiency of the device under complex soil conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the trolley structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the auxiliary lifting component structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the soil loosening knife of this utility model.

[0020] Figure 5 This is a schematic diagram of the variable pitch rod structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the spray bar structure of this utility model.

[0022] The attached diagram is labeled as follows: 1. Trolley; 2. First electric push rod; 3. Mounting bracket; 401. Rack; 402. Gear; 403. Connecting rod; 5. Limiting sleeve; 601. Second electric push rod; 602. U-shaped frame; 7. Rotating shaft; 8. Tillering blade; 9. Servo motor; 10. Pitch rod; 1001. Slide groove; 11. Slider; 12. Limiting post; 13. Guide rod; 14. Spraying rod; 1401. Water outlet; 15. Conical head; 16. Piston; 17. Compression spring; 18. Water storage tank; 19. Main conveying pipe; 20. Branch conveying pipe; 21. Control valve; 22. Controller. Detailed Implementation

[0023] Refer to the instruction manual appendix Figures 1 to 6A device for simultaneously controlling soil salinization and soil-borne diseases includes a trolley 1, a first electric push rod 2 fixedly connected to the trolley 1, a mounting frame 3 fixedly connected to the output end of the first electric push rod 2, the first electric push rod 2 driving the mounting frame 3 to move vertically, two symmetrical auxiliary lifting components mounted on the mounting frame 3, a servo motor 9 fixedly connected to the mounting frame 3, a pitch control rod 10 fixedly connected to the output end of the servo motor 9, the pitch control rod 10 and the mounting frame 3 being rotatably connected, and the servo motor 9... The variable pitch rod 10 is used to drive the variable pitch rod 10 to rotate. The variable pitch rod 10 has several grooves 1001 that are equally spaced along a spiral line and are spaced further apart at the front and closer together at the back. A slider 11 is slidably connected to the variable pitch rod 10. A limit post 12 is fixedly connected to the slider 11. The limit post 12 and the groove 1001 are slidably connected. A spray rod 14 is fixedly connected to the slider 11. A conical head 15 is fixedly connected to the bottom of the spray rod 14. Several water outlet holes 1401 are opened at the end of the spray rod 14 near the conical head 15.

[0024] It should be noted that when the servo motor 9 drives the pitch rod 10 to rotate, the limiting post 12 fixed on the slider 11 moves along the slide groove 1001. Since the slide groove 1001 is spiral, the movement of the limiting post 12 is converted into the linear movement of the slider 11 along the axis of the pitch rod 10. All sliders 11 engage with different slide grooves 1001 on the same pitch rod 10 through their respective limiting posts 12. Their movements are synchronous. When the pitch rod 10 rotates, all sliders 11 will move closer or further away from each other synchronously according to the helix angle of their respective segments, thereby realizing stepless adjustment of the lateral distance between adjacent spray rods 14. Then, the liquid medicine is directly applied to the crop roots through the water outlet 1401.

[0025] Another embodiment based on the conical head 15: On the conical surface of the conical head 15, multiple (3-5) spirally distributed guide fins are added, and these fins are very thin, with a height of only a few millimeters. When the conical head 15 is pressed directly into the soil, it can cut the soil like a drill bit, rather than simply squeezing it, which significantly reduces the insertion resistance and alleviates the compression on the surrounding soil.

[0026] Refer to the instruction manual appendix Figure 3 The auxiliary lifting assembly includes two racks 401 fixedly connected to the mounting bracket 3, two gears 402 respectively meshing and connected to one side of the two racks 401, and a connecting rod 403 fixedly connected between the two gears 402. The connecting rod 403 is rotatably connected to the trolley 1.

[0027] It should be noted that when the first electric push rod 2 drives the mounting bracket 3 to rise and fall, the rack 401 on the mounting bracket 3 moves accordingly, driving the gear 402 that meshes with it to rotate. This causes the gears on both sides to rotate synchronously through the connecting rod 403. This design ensures that the mounting bracket 3 is subjected to balanced force on both sides during the rising and falling process, and runs smoothly, effectively preventing jamming or skew. In addition, the rack 401 and gear 402 are sized to match, achieving stable power transmission.

[0028] Refer to the instruction manual appendix Figure 3 and Figure 4 Several limiting sleeves 5 are fixedly connected to the trolley 1. The limiting sleeves 5 are slidably connected to the rack 401. Two symmetrical guide rods 13 are provided on both sides of the pitch rod 10. The guide rods 13 are fixedly connected to the mounting frame 3. The guide rods 13 are slidably connected to the slider 11.

[0029] It should be noted that the limiting sleeve 5 provides additional guidance and support for the rack 401, ensuring the stability of the entire mounting frame movement. The guide rod 13 is used to limit the movement of the slider 11, ensuring that the slider 11 can only make lateral displacement on the pitch rod 1.

[0030] Refer to the instruction manual appendix Figure 4 An angle control component is installed at the front end of the mounting frame 3. The output end of the angle control component is connected to a rotating shaft 7. The rotating shaft 7 and the mounting frame 3 are rotatably connected. The angle control component is used to drive the rotating shaft 7 to rotate. Several loosening blades 8 are fixedly connected to the rotating shaft 7.

[0031] It should be noted that the angle control component enables flexible adjustment of the soil loosening blade 8's entry angle. It can adjust the cutting angle of the soil loosening blade 8 according to different soil compaction levels and agronomic requirements to achieve the best soil loosening effect and create a suitable soil channel for subsequent liquid injection operations.

[0032] Another embodiment based on the soil tiller 8: The traditional straight cutting edge of the soil tiller 8 is improved into a continuous, small wavy cutting edge with a small difference in amplitude between the crest and trough (2-3 mm). When the wavy cutting edge cuts into the soil, the crest contacts the soil first and generates stress concentration, causing the soil to start to generate micro-cracks from the crest. This avoids the huge and continuous resistance generated by the straight cutting edge shearing the entire cross section at the same time, resulting in smaller fluctuations in traction resistance, significantly reduced peak tension, smoother machine operation, and lower energy consumption.

[0033] Refer to the instruction manual appendix Figure 4 The angle control component includes a second electric push rod 601 rotatably connected to the mounting bracket 3 and a U-shaped frame 602 rotatably connected to the output end of the second electric push rod 601. The U-shaped frame 602 is fixedly connected to the rotating shaft 7. The second electric push rod 601 is used to drive the U-shaped frame 602 to move along a preset direction.

[0034] It should be noted that the linear extension and retraction motion of the second electric push rod 601 is precisely converted into the rotational motion of the rotating shaft 7 and the loosening blade 8 on it. Since the U-shaped frame 602 and the rotating shaft 7 are fixed, the U-shaped frame 602 makes an arc motion with the rotating shaft 7 as the center. When the second electric push rod 601 extends, the U-shaped frame 602 rotates clockwise, the angle of the loosening blade 8 tilts backward, and the soil penetration angle increases. When the second electric push rod 601 shortens, the U-shaped frame 602 rotates counterclockwise, the angle of the loosening blade 8 tilts forward, and the soil penetration angle decreases.

[0035] Refer to the instruction manual appendix Figure 6 A piston 16 is slidably connected inside the spray rod 14, and a compression spring 17 is fixedly connected between the piston 16 and the conical head 15.

[0036] It should be noted that during the process of inserting the spray rod 14 into the soil, the elastic force of the compression spring 17 will push the piston 16 to the upper limit position of the spray rod 14, temporarily sealing the water outlet 1401 to prevent soil from flowing back into the spray rod 14 under pressure. When the injection begins, the pressure of the liquid overcomes the elastic force of the compression spring 17 and pushes the piston 16 downward, so that the liquid can be smoothly sprayed out from the water outlet 1401. When the spray rod 14 is lifted out of the soil, the rebound force of the compression spring 17 can assist the piston 16 to return to its original position, effectively preventing the water outlet 1401 from being blocked.

[0037] Refer to the instruction manual appendix Figure 2 The trolley 1 is fixedly connected to two water tanks 18 and two controllers 22. The controllers 22 are used to control the operation of various electronic devices in the device.

[0038] It should be noted that the two water storage tanks 18 can store liquids with different functions. For example, one tank can store leaching liquid or amendment for improving saline soil, and the other tank can store pesticides for preventing soil-borne diseases. The controller 22 (usually a PLC or a dedicated agricultural controller) integrates control of all electronic equipment such as the first electric actuator 2, servo motor 9, second electric actuator 601, and control valve 21, which can realize the automation of the operation process.

[0039] Refer to the instruction manual appendix Figure 5 A main conveying pipe 19 is fixedly connected to the mounting bracket 3. The main conveying pipe 19 and the water storage tank 18 are connected by a pipe. A branch conveying pipe 20 is fixedly connected between the main conveying pipe 19 and the spray bar 14. A control valve 21 is fixedly connected to the branch conveying pipe 20.

[0040] It should be noted that the main delivery pipe 19 is connected to the water storage tank 18 via a pipeline, and the delivery branch pipes 20 are connected to the main delivery pipe 19 and each spray bar 14. The control valve 21 (such as a solenoid valve) installed on each delivery branch pipe 20 can independently control the liquid flow to each spray bar 14. As needed, liquid can be selectively injected at specific points, or the injection volume at different points can be controlled to achieve variable application of pesticides / fertilizers, save resources and improve the control effect.

[0041] Working principle: During operation, the controller 22 first activates the second electric push rod 601, driving the U-shaped frame 602 to rotate the shaft 7, adjusting the loosening blade 8 to the optimal soil entry angle. Then, the controller 22 instructs the servo motor 9 to drive the pitch rod 10 to rotate. The sliding groove 1001 on the rod, via the limit post 12, drives all the sliders 11 to move synchronously along the pitch rod 10 and guide rod 13, steplessly adjusting the lateral spacing of the multiple spraying rods 14 to a predetermined value. Next, the first electric push rod 2 pushes the mounting frame 3 to descend. The mounting frame 3, via the racks 401 on both sides, drives the gears 402 and connecting rods 403 to rotate synchronously. With the auxiliary guidance of the limit sleeve 5, the entire frame descends smoothly, causing the conical head 15 at the bottom of the spraying rod 14 to penetrate the soil. During this process... The piston 16, under the elastic force of the compression spring 17, seals the water outlet 1401, effectively preventing soil blockage. When the spray rod 14 reaches the predetermined depth, the controller 22 opens the control valve 21 on the delivery branch pipe 20. Liquid is pumped from the water storage tank 18 into the spray rod 14 through the delivery main pipe 19. The hydraulic pressure overcomes the elastic force of the compression spring 17 to push the piston 16 to open the water outlet 1401, accurately injecting the liquid into the soil root layer. After the injection is completed, the control valve 21 closes, the compression spring 17 pushes the piston 16 to reset, the first electric push rod 2 pulls the mounting bracket 3 to rise, and the servo motor 9 can rotate in the opposite direction to adjust the spacing of the spray rod 14. The device moves to the next work point to work in a cycle, thereby simultaneously and efficiently achieving the prevention and control of soil salinization and soil-borne diseases.

Claims

1. A device for simultaneously preventing and controlling soil salinization and soil-borne diseases, characterized in that: The device includes a trolley (1), on which a first electric push rod (2) is fixedly connected. A mounting bracket (3) is fixedly connected to the output end of the first electric push rod (2). The first electric push rod (2) drives the mounting bracket (3) to move vertically. Two symmetrical auxiliary lifting components are mounted on the mounting bracket (3). A servo motor (9) is fixedly connected to the mounting bracket (3). A pitch control rod (10) is fixedly connected to the output end of the servo motor (9). The pitch control rod (10) and the mounting bracket (3) are rotatably connected. The servo motor (9) drives the pitch control rod (10) to rotate. The variable pitch rod (10) has several grooves (1001) that are equally spaced along a spiral line, with the groove spacing being sparser at the front and denser at the back. A slider (11) is slidably connected to the variable pitch rod (10). A limit post (12) is fixedly connected to the slider (11). The limit post (12) and the groove (1001) are slidably connected. A spray rod (14) is fixedly connected to the slider (11). A conical head (15) is fixedly connected to the bottom of the spray rod (14). Several water outlet holes (1401) are opened at one end of the spray rod (14) near the conical head (15).

2. The device for simultaneously preventing and controlling soil salinization and soil-borne diseases according to claim 1, characterized in that: The auxiliary lifting assembly includes two racks (401) fixedly connected to the mounting bracket (3), two gears (402) respectively meshing and connected to one side of the two racks (401), and a connecting rod (403) fixedly connected between the two gears (402). The connecting rod (403) is rotatably connected to the trolley (1).

3. The device for simultaneously preventing and controlling soil salinization and soil-borne diseases according to claim 2, characterized in that: Several limiting sleeves (5) are fixedly connected to the trolley (1). The limiting sleeves (5) and the rack (401) are slidably connected. Two symmetrical guide rods (13) are provided on both sides of the pitch rod (10). The guide rods (13) are fixedly connected to the mounting frame (3). The guide rods (13) and the slider (11) are slidably connected.

4. The device for simultaneously preventing and controlling soil salinization and soil-borne diseases according to claim 1, characterized in that: An angle control component is installed at the front end of the mounting bracket (3). The output end of the angle control component is connected to a rotating shaft (7). The rotating shaft (7) and the mounting bracket (3) are rotatably connected. The angle control component is used to drive the rotating shaft (7) to rotate. Several loosening blades (8) are fixedly connected on the rotating shaft (7).

5. The device for simultaneously preventing and controlling soil salinization and soil-borne diseases according to claim 4, characterized in that: The angle control assembly includes a second electric push rod (601) rotatably connected to the mounting bracket (3) and a U-shaped frame (602) rotatably connected to the output end of the second electric push rod (601). The U-shaped frame (602) and the rotating shaft (7) are fixedly connected. The second electric push rod (601) is used to drive the U-shaped frame (602) to move along a preset direction.

6. The device for simultaneously preventing and controlling soil salinization and soil-borne diseases according to claim 1, characterized in that: A piston (16) is slidably connected inside the spray rod (14), and a compression spring (17) is fixedly connected between the piston (16) and the conical head (15).

7. The device for simultaneously preventing and controlling soil salinization and soil-borne diseases according to claim 1, characterized in that: Two water tanks (18) and two controllers (22) are fixedly connected to the trolley (1). The controllers (22) are used to control the operation of various electronic devices in the device.

8. The device for simultaneously preventing and controlling soil salinization and soil-borne diseases according to claim 7, characterized in that: The mounting bracket (3) is fixedly connected to a main conveying pipe (19), which is connected to the water storage tank (18) through a pipe. A branch conveying pipe (20) is fixedly connected between the main conveying pipe (19) and the spray bar (14), and a control valve (21) is fixedly connected to the branch conveying pipe (20).

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