A high-throughput, anti-siphon, lightweight, integrated water and fertilizer application device for mountainous areas

By using a simplified anti-siphon fertigation device with components such as a pressure relief valve, a rotor flow meter, and telescopic swing parts, the problems of siphoning and insufficient flow in mountain fertilization are solved, achieving efficient and energy-saving fertilization and extending the equipment's lifespan.

CN118266310BActive Publication Date: 2025-12-02ZHEJIANG UNIV
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Patent Information

Application Number
CN202410584627.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-12
Publication Date
2025-12-02
Estimated Expiration
2044-05-12

AI Technical Summary

Technical Problem

Existing fertilization equipment suffers from problems such as siphoning, insufficient throughput, and energy waste when used in mountainous areas. Furthermore, traditional equipment is prone to damage and cannot meet the needs of large-scale fertilization.

Method used

The device employs a lightweight, anti-siphon, integrated water and fertilizer system, including a protective cabinet, water tank, fertilizer pump, follow-up mixing unit, and control and regulation system. It utilizes a pressure relief valve, rotor flow meter, and telescopic swing component to achieve high-throughput irrigation. Solid particles are processed through the telescopic swing component and tapping bar, and the image acquisition and analysis module accelerates dissolution.

Benefits of technology

The siphon problem was solved, fertilizer flux was increased, energy consumption was reduced, equipment lifespan was extended, and fertilization accuracy and efficiency were ensured.

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Abstract

This invention relates to a lightweight, simplified, high-flow-rate, anti-siphon fertigation device for use in automated agricultural planting in mountainous areas. Utilizing a pressure relief valve, it solves the siphon problem encountered during irrigation and fertilization in mountainous regions. Through a parallel branch design, it increases the irrigation flow rate. With the assistance of a rotor flowmeter, it achieves proportional mixing. Combined with a follow-up mixing unit within the water tank, it adjusts the corresponding swing area according to changes in the liquid level, reducing idling and achieving energy savings. Furthermore, with the help of the oscillating action of the striking bar and telescopic swinging component, it effectively shakes off residual fertilizer crystals from the slope's floating plate and disperses clumps of aggregated particles within the net bag, accelerating their dissolution.
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Description

Technical Field

[0001] This invention relates to a high-throughput, anti-siphon, lightweight, integrated water and fertilizer application device for mountainous areas, and particularly to a high-throughput, anti-siphon, lightweight, integrated water and fertilizer application device for use in the field of automated agricultural planting. Background Technology

[0002] With the promotion of agricultural planting technology, agricultural planting areas have gradually spread from plains to mountainous areas. Based on the characteristics of mountainous geology, topography and landform, suitable crops can be selected according to local conditions, which can generate greater economic benefits and is of great significance to local economic development.

[0003] Chinese invention patent CN202310623625.2 discloses an intelligent fertilizer application device for adjusting water and fertilizer concentration, including a box and a feeding hopper. The feeding hopper is located at the upper end of the box, and a fixing cap is located at the upper end of the feeding hopper. A sealing ring is located on the outside of the fixing cap. A stirring mechanism is located inside the box, and a fertilizer collection mechanism is located at the lower end of the box. A fertilizer crushing mechanism is located inside the fertilizer collection mechanism, and an automatic soil turning mechanism is connected to the lower end of the crushing mechanism. The automatic soil turning mechanism is located below the box. A fertilizer concentration detection mechanism and a water pump are respectively installed inside the box. When the fertilizer concentration in the outflowing water is high, the water circulates within the device to reduce the fertilizer concentration in the outflowing water. When the fertilizer concentration in the outflowing water is low, the water is stirred to increase the fertilizer concentration in the water at the lower end of the device. This process is repeated to stabilize the outflowing fertilizer concentration within a certain range.

[0004] The above-mentioned equipment has the following problems when performing fertilization:

[0005] (1) When the above equipment mixes water and fertilizer, it needs to use internal stirring equipment and motor equipment to achieve the corresponding mixing process. After the fertilizer liquid level drops, the stirring mechanism in the upper part will run idle, resulting in energy waste.

[0006] (2) The drip irrigation pipelines laid in mountainous areas have a large elevation difference and need to meet the large one-time irrigation area. During drip irrigation or sprinkler irrigation, the water and fertilizer at the tail end are consumed quickly, which can easily create a vacuum section in the pipeline, thereby causing back suction on the fertilizer application device, affecting the accuracy of fertilizer application, and eventually leading to piston breakage and equipment failure.

[0007] (3) Mountainous areas generally have larger planting areas and require more water and fertilizer than facility agriculture. However, due to the inconvenience of installation in mountainous areas, there are often no flat plots available for placing large fertilization devices, and traditional fertilization devices are easily damaged in open-air environments. Summary of the Invention

[0008] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to solve the problems of siphon and insufficient flux during the fertilization process, and at the same time, to achieve automated mixing treatment to achieve energy-saving and environmental protection effects.

[0009] To address the aforementioned issues, this invention provides a lightweight, simplified, high-flow-rate, anti-siphon fertilization device for mountainous areas. The device includes a protective cabinet and a water tank installed within the cabinet. Six equidistant fertilization pumps are mounted on the rear wall of the protective cabinet, and each pump's output end is connected to a water pipe extending into the water tank. The pumps are paired to form a fertilizer applicator, with three groups connected in parallel. Two inlet pipes are arranged through one side of the water tank, and both inlet pipes are equipped with pressure relief valves and rotor flow meters.

[0010] The water tank is equipped with a follow-up mixing unit. The follow-up mixing unit includes a sloped float plate that is fitted and slidably connected to the inner wall of the water tank. Multiple through holes are arranged inside the sloped float plate. Each through hole group consists of multiple through holes. A net strip is connected to the bottom of each through hole. The bottom of the sloped float plate is connected to a telescopic swinging component located between two through hole groups through a movable shaft.

[0011] The telescopic swing component includes a movable sleeve plate connected to the surface of the movable shaft, and a storage plate is slidably sleeved at the tail end of the movable sleeve plate. Electromagnetic plates are connected to the surfaces of both the storage plate and the movable sleeve plate.

[0012] In the aforementioned high-throughput anti-siphon type lightweight fertigation device for mountainous areas, the follow-up mixing unit in the water tank can adjust the corresponding swing area according to the change in the liquid level in the water tank, reducing the occurrence of idling mixing and achieving energy-saving effect.

[0013] As a further improvement to this application, the movable sleeve has a two-section structure, with a spherical bar with a semi-circular cross-section connected to the bottom of the storage plate, and an electromagnetic suction block embedded inside the sloping floating plate.

[0014] As a further improvement to this application, the mesh strip is made of cotton mesh material, and the length of the mesh strip is less than the length of the storage board.

[0015] As a further improvement of this application, it also includes a control and regulation system, which includes a processor and a monitoring module and an alert module connected to the processor. The monitoring module includes a solution concentration detector connected to the output end of the fertilizer applicator, and the solution concentration detection and alert modules are signal-connected.

[0016] As another improvement of this application, the surface of the slope floating plate is provided with an auxiliary groove, and the upper part of the movable shaft extends through into the interior of the auxiliary groove. A linkage rod is connected to the surface of the movable shaft, and a striking strip is connected to the top of the linkage rod.

[0017] As a further improvement to this application, the top of the striking bar is flush with the top of the auxiliary groove, and the cross-sectional width of the auxiliary groove is less than the height of the linkage rod.

[0018] As another improvement of this application, the processor is also connected to an analysis module and an image acquisition module. The image acquisition module includes an image acquisition device that is tilted and connected to the bottom of the slope floating plate, and the image acquisition device is signal-connected to the analysis module.

[0019] As a further improvement to this application, the net strip is an elastic mesh structure made of transparent rubber material. A piston plate is slidably connected to the inner wall of the net strip. The piston plate and the bottom wall of the net strip form a closed cavity. A storage balloon is arranged inside the closed cavity. A one-way solenoid valve connected to the analysis module is installed through the surface of the storage balloon. The storage balloon is filled with inert gas and the filling pressure is greater than the maximum hydraulic pressure in the water tank.

[0020] As a further improvement to this application, the piston plate is made of a material with a density greater than that of water, and the length of the closed cavity is less than one-seventh of the length of the net strip itself.

[0021] In summary, this application utilizes a pressure relief valve to solve the siphon problem encountered during irrigation and fertilization in mountainous areas. Through the parallel design of branch circuits, the irrigation flux of this application can be increased. With the cooperation of a rotor flow meter, proportional mixing can be achieved. Combined with the follow-up mixing unit in the water tank, the corresponding swing area can be adjusted according to the change of liquid level in the water tank, reducing the occurrence of idling mixing and achieving energy-saving effect. At the same time, with the help of the swing action of the striking bar and telescopic swinging component, the residual particles on the slope floating plate can be concentrated and shaken off, and the clumps of particles in the net bag strip can be effectively shaken off and dissolved. Attached Figure Description

[0022] Figure 1 These are schematic diagrams of the overall structure of the first to third embodiments of this application;

[0023] Figure 2 These are schematic diagrams of the internal structure of the water tank in the first to third embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the installation of the telescopic swing member according to the first to third embodiments of this application;

[0025] Figure 4 These are diagrams illustrating the working state of the telescopic swing member according to the first to third embodiments of this application.

[0026] Figure 5 This is a diagram showing the working state of the telescopic swing component after the liquid level in the water tank drops in the first to third embodiments of this application.

[0027] Figure 6 This is a schematic diagram of the auxiliary groove according to the second embodiment of this application;

[0028] Figure 7 For this application Figure 6 Enlarged view of point A in the image;

[0029] Figure 8 This is a schematic diagram of the working state of the second embodiment of this application;

[0030] Figure 9 This is a diagram showing the internal structure of the mesh strip according to the third embodiment of this application;

[0031] Figure 10 This is a diagram showing the working state of the mesh strip according to the third embodiment of this application.

[0032] Explanation of the labels in the diagram:

[0033] 1. Protective cabinet; 2. Water tank; 3. Rotor flow meter; 4. Pressure relief valve; 5. Follow-up mixing unit; 51. Sloping floating plate; 52. Net strip; 521. Piston plate; 522. Storage balloon; 53. Telescopic swing component; 531. Storage plate; 532. Spherical bar; 533. Electromagnetic plate; 534. Movable sleeve plate; 6. Movable shaft; 7. Auxiliary groove; 71. Striking bar; 72. Linkage rod; 8. Fertilizer pump. Detailed Implementation

[0034] The three embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0035] First implementation method:

[0036] Figure 1 This invention discloses a lightweight, integrated water and fertilizer application device for high-flow-rate, anti-siphon type applications in mountainous areas. It includes a protective cabinet 1 and a water tank 2 installed inside the protective cabinet 1. Six fertilizer pumps 8 are installed on the rear wall of the protective cabinet 1 at equal intervals. The output end of each fertilizer pump 8 is connected to a water pipe extending into the water tank 2. The fertilizer pumps 8 are arranged in pairs to form fertilizer applicators. The three sets of fertilizer applicators are connected in parallel, and the output end of each set of fertilizer applicators is connected to a rotor flow meter 3. Two water inlet pipes are arranged through one side surface of the water tank 2, and a pressure relief valve 4 and a rotor flow meter 3 are installed on the surface of both water inlet pipes.

[0037] Specifically, to solve the siphon problem, a pressure relief valve 4 is installed on the surface of the water inlet pipe of water tank 2 to prevent vacuum siphon damage to the equipment caused by rapid water flow.

[0038] In this application, the three sets of fertilizer applicators are connected in parallel to achieve a flow rate of 15T / h, which greatly improves the flow rate of water and fertilizer. With the cooperation of the rotor flow meter 3, the proportion of water can be achieved in the water inlet channel composed of the two inlet pipes.

[0039] In addition, to prevent problems such as erosion from rainwater, the fertilizer applicator is integrated and installed in the protective cabinet 1, avoiding external influences and increasing the service life of the equipment;

[0040] Figure 2-3 As shown, a follow-up mixing unit 5 is installed inside the water tank 2. The follow-up mixing unit 5 includes a slope float 51 that is fitted and slidably connected to the inner wall of the water tank 2. Multiple through holes are arranged inside the slope float 51. Each through hole group consists of multiple through holes. A net strip 52 is connected to the bottom of each through hole. The bottom of the slope float 51 is connected to a telescopic swing member 53 located between two through hole groups through a movable shaft 6.

[0041] The telescopic swing component 53 includes a movable sleeve plate 534 connected to the surface of the movable shaft 6. A storage plate 531 is slidably sleeved at the tail end of the movable sleeve plate 534. Electromagnetic plates 533 are connected to the surfaces of both the storage plate 531 and the movable sleeve plate 534. The movable sleeve plate 534 has a two-section structure. A spherical bar 532 with a semi-circular cross-section is connected to the bottom of the storage plate 531. Electromagnetic suction blocks are embedded inside the slope floating plate 51.

[0042] Specifically, when the water and fertilizer are mixed inside the water tank 2, the four telescopic swing parts 53 are in pairs, and the electromagnetic plate 533 in each pair of telescopic swing parts 53 has two working states: one attracts each other and the other repels each other.

[0043] The slope float 51, made of a material with a density less than that of the material, initially floats on the surface of the liquid inside the water tank 2. At this time, the telescopic swinging component 53 is in a naturally stretched state under its own weight, which is less than the depth of the liquid inside the water tank 2.

[0044] Figure 4 The process is as follows: First, water is poured into water tank 2. Then, water-soluble fertilizer granules or high-concentration fertilizer solution to be diluted are placed on the slope floating plate 51. Solid particles that cannot dissolve quickly or other insoluble impurities are intercepted by the net strips 52. Then, the electromagnetic plate 533 is activated, so that the two telescopic swinging parts 53 in each group move closer or further apart, which has a stirring effect on the liquid in water tank 2, causing the intercepted particles in the net strips 52 to shake and dissolve, and achieving the mixing and stirring of the liquid in water tank 2.

[0045] Figure 5As the liquid level in water tank 2 decreases, the spherical bar 532 at the bottom of the telescopic swing member 53 gradually contacts the bottom surface of water tank 2. At this time, the normal swing mixing process can continue. Subsequently, as the liquid level continues to decrease, the contact action between the spherical bar 532 and the bottom wall of water tank 2 allows the movable sleeve 534 to be stored in the storage plate 531, and the swing mixing process continues until the height of the liquid level in water tank 2 is less than the height of the storage plate 531. At this time, the electromagnetic suction block is activated, and the electromagnetic plates 533 are adjusted to a working state where they attract each other with the electromagnetic suction block. This attracts the telescopic swing member 53 in the contracted state to the bottom of the slope floating plate 51, and the swing operation stops.

[0046] The mesh strip 52 is made of cotton mesh material, and the length of the mesh strip 52 is less than the length of the storage board 531.

[0047] Specifically, the net strip 52 is made of mesh, which can intercept the liquid without preventing the liquid from dissolving the solid particles trapped inside. It does not produce a rigid interception effect when the telescopic swinging member 53 swings or adsorbs.

[0048] It also includes a control and regulation system, which includes a processor and a monitoring module and an alert module connected to the processor. The monitoring module includes a solution concentration detector connected to the output of the fertilizer applicator, and the solution concentration detection and alert modules are connected by a signal.

[0049] Specifically, a solution concentration detector is used to check whether the water and fertilizer concentrations output from the output end of each group of fertilizer applicators are consistent. If they are inconsistent, the module is prompted to start, the delivery is interrupted, and the mixing continues until the concentrations are the same.

[0050] Second implementation method:

[0051] Figure 6-8 The surface of the slope floating plate 51 is provided with an auxiliary groove 7, and the upper part of the movable shaft 6 extends through into the interior of the auxiliary groove 7. The surface of the movable shaft 6 is connected to a linkage rod 72, and the top of the linkage rod 72 is connected to a striking strip 71.

[0052] The top of the striking bar 71 is flush with the top of the auxiliary groove 7, and the cross-sectional width of the auxiliary groove 7 is less than the height of the linkage rod 72.

[0053] Specifically, if solid particles fail to completely roll down into the net strip 52 along the slope floating plate 51 during deployment, it is necessary to use the tapping strip 71 to tap and vibrate the slope floating plate 51 so that the particles remaining on the surface can roll down into the adjacent through hole until they fall into the net strip 52.

[0054] When the telescopic swinging component 53 swings, it drives the movable shaft 6 to swing slightly, which in turn drives the linkage rod 72 and the striking bar 71 to swing, which has a striking effect on the inner wall of the auxiliary groove 7. This helps the particles remaining on the surface of the slope floating plate 51 to roll into the net bag bar 52, ensuring that the ingredients are fully dispensed.

[0055] Unlike the first embodiment, this embodiment utilizes the swinging action of the telescopic swing member 53 during operation to knock down solid particles remaining on the surface of the slope floating plate 51 that have not yet entered the net bag strip 52, thereby promoting the full utilization of the ingredients.

[0056] The third implementation method:

[0057] Figure 9-10 The processor is also connected to an analysis module and an image acquisition module. The image acquisition module includes an image acquisition device that is tilted and connected to the bottom of the slope floating plate 51, and the image acquisition device is signal-connected to the analysis module.

[0058] The mesh strip 52 is an elastic mesh structure made of transparent rubber material. A piston plate 521 is slidably connected to the inner wall of the mesh strip 52. The piston plate 521 and the bottom wall of the mesh strip 52 form a closed cavity. A storage balloon 522 is arranged inside the closed cavity. A one-way solenoid valve connected to the analysis module is installed through the surface of the storage balloon 522. The storage balloon 522 is filled with inert gas and the filling pressure is greater than the maximum hydraulic pressure in the water tank 2.

[0059] The piston plate 521 is made of a material with a density greater than that of water, and the length of the closed cavity is less than one-seventh of the length of the net strip 52 itself.

[0060] Specifically, the image acquisition device can be used to collect images of the dissolution of particles in the net strip 52. After the image of the aggregated particles in the net strip 52 captured by the image acquisition device is transmitted to the analysis module, the analysis module analyzes whether there is a significant change in the image of the aggregated particles in the net strip 52 within a set time. If there is no significant change, it indicates that the stirring effect of the telescopic swinging member 53 has a limited effect on dissolving the particles in the net strip 52. It is necessary to activate the one-way solenoid valve to provide an upward instantaneous push to the piston plate 521 by releasing air, thereby moving the piston plate 521 upward and shaking the aggregated particles in the net strip 52 to facilitate subsequent dissolution operations.

[0061] Then, the piston plate 521 sinks under its own weight and returns to the closed cavity, waiting for the next push to move it upward.

[0062] Unlike the first embodiment, this embodiment disperses the aggregated particles within the mesh strip 52 to accelerate the subsequent dissolution process.

[0063] In summary, this application utilizes the pressure relief valve 4 to solve the siphon problem encountered during irrigation and fertilization in mountainous areas. Through the parallel design of branch circuits, the irrigation flux of this application can be increased. With the cooperation of the rotor flow meter 3, a proportional mixing ratio can be achieved. Combined with the follow-up mixing unit 5 in the water tank 2, the corresponding swing area can be adjusted according to the change of liquid level in the water tank 2, reducing the occurrence of idling mixing and achieving energy-saving effect. At the same time, with the help of the swing action of the striking bar 71 and the telescopic swinging part 53 during operation, the particles remaining on the slope floating plate 51 can be concentrated and shaken off, and the clumps of particles in the net bag bar 52 can be effectively shaken off and dissolved.

[0064] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A lightweight, simplified, high-flow-rate, anti-siphon fertilization device for mountainous areas, comprising a protective cabinet (1) and a water tank (2) installed inside the protective cabinet (1), characterized in that: The rear wall of the protective cabinet (1) is equipped with six equidistant fertilizer pumps (8), and the output end of each fertilizer pump (8) is connected to a water pipe extending to the inside of the water tank (2). The fertilizer pumps (8) are arranged in pairs to form a fertilizer applicator, and the three fertilizer applicators are connected in parallel. Two water inlet pipes are arranged through one side surface of the water tank (2), and a pressure relief valve (4) and a rotor flow meter (3) are installed on the surface of the two water inlet pipes. The water tank (2) is equipped with a follow-up mixing unit (5). The follow-up mixing unit (5) includes a slope float (51) that is fitted and slidably connected to the inner wall of the water tank (2). The slope float (51) has multiple through holes arranged inside. Each through hole group consists of multiple through holes. The bottom of each through hole is connected to a net strip (52). The bottom of the slope float (51) is connected to a telescopic swing member (53) located between two through hole groups through a movable shaft (6). The telescopic swing member (53) includes a movable sleeve plate (534) connected to the surface of the movable shaft (6). A storage plate (531) is slidably sleeved at the tail end of the movable sleeve plate (534). Electromagnetic plates (533) are connected to the surfaces of both the storage plate (531) and the movable sleeve plate (534).

2. The simplified, high-throughput, anti-siphon, integrated water and fertilizer application device for mountainous areas according to claim 1, characterized in that: The movable sleeve plate (534) has a two-section structure. The bottom of the storage plate (531) is connected to a spherical bar (532) with a semi-circular cross section. An electromagnetic suction block is embedded in the interior of the slope floating plate (51).

3. The simplified, high-throughput, anti-siphon, integrated water and fertilizer application device for mountainous areas according to claim 1, characterized in that: The mesh strip (52) is made of cotton mesh material, and the length of the mesh strip (52) is less than the length of the storage board (531).

4. The simplified, high-throughput, anti-siphon, integrated water and fertilizer application device for mountainous areas according to claim 1, characterized in that: It also includes a control and regulation system, which includes a processor and a monitoring module and an alert module connected to the processor. The monitoring module includes a solution concentration detector connected to the output end of the fertilizer applicator, and the solution concentration detection and alert modules are signal-connected.

5. The simplified, high-throughput, anti-siphon, integrated water and fertilizer application device for mountainous areas according to claim 1, characterized in that: The surface of the slope floating plate (51) is provided with an auxiliary groove (7), and the upper part of the movable shaft (6) extends through into the interior of the auxiliary groove (7). The surface of the movable shaft (6) is connected to a linkage rod (72), and the top end of the linkage rod (72) is connected to a striking strip (71).

6. The simplified, high-throughput, anti-siphon, integrated water and fertilizer application device for mountainous areas according to claim 5, characterized in that: The top of the striking bar (71) is flush with the top of the auxiliary groove (7), and the cross-sectional width of the auxiliary groove (7) is less than the height of the linkage rod (72).

7. A lightweight, simplified, high-throughput, anti-siphon fertilization device for mountainous areas according to claim 4, characterized in that: The processor is also connected to an analysis module and an image collection module. The image collection module includes an image acquisition device that is inclinedly connected to the bottom of the slope floating plate (51), and the image acquisition device is signal connected to the analysis module.

8. A lightweight, simplified, high-throughput, anti-siphon fertilization device for mountainous areas according to claim 7, characterized in that: The mesh strip (52) is an elastic mesh structure made of transparent rubber material. A piston plate (521) is slidably connected to the inner wall of the mesh strip (52). The piston plate (521) and the bottom wall of the mesh strip (52) form a closed cavity. A storage balloon (522) is arranged inside the closed cavity. A one-way solenoid valve connected to the analysis module is installed through the surface of the storage balloon (522). The storage balloon (522) is filled with inert gas and the filling pressure is greater than the maximum hydraulic pressure in the water tank (2).

9. A lightweight, simplified, high-throughput, anti-siphon fertilization device for mountainous areas according to claim 8, characterized in that: The piston plate (521) is made of a material with a density greater than that of water, and the length of the closed cavity is less than one-seventh of the length of the net strip (52).

Citation Information

Patent Citations

  • A fertilizer application device that intelligently adjusts water and fertilizer concentration

    CN116472810B

  • Fertilizing equipment capable of intelligently adjusting water and fertilizer concentration

    CN116472810A

  • Intelligent water and fertilizer premixing machine adopting novel structure

    CN219919707U