Farmland water and fertilizer precise regulation and control intelligent irrigation system

Abstract

The invention relates to the technical field of farmland fertilization, in particular to a farmland water and fertilizer precise regulation and control intelligent irrigation system which comprises a ground plug, a water and fertilizer box and a spray pipe. By controlling the water amount and the reasonable proportion of the water-soluble fertilizer, the characteristic that the plant root system continuously absorbs nutrients is met, leaching loss caused by one-time large-amount fertilization is reduced, however, the defect during sprinkling irrigation fertilization is that the fertilizer injection rate and the nutrient concentration in sprinkling irrigation water cannot be accurately controlled, and the fertilization effect is poor. And the fertilizer needs to be filled into the fertilization tank again before each spray irrigation and is fully diluted and dissolved, so that the time for fertilization is prolonged, the working intensity of personnel is increased, and the fertilizer supplementing efficiency of the farmland is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of farmland fertilization, and in particular to an intelligent irrigation system for precise regulation of farmland water and fertilizer. Background Art

[0002] Water-soluble fertilizer is a multi-component compound fertilizer that can be completely soluble in water. It can dissolve quickly in water, is more easily absorbed by crops, and has a relatively high absorption and utilization rate. More importantly, it can be used in facility agriculture such as sprinkler and drip irrigation to achieve water-fertilizer integration and save water, fertilizer and labor.

[0003] Irrigation and fertilization can be divided into three types: surface irrigation, underground irrigation (i.e. pressurized irrigation), and injection irrigation. Pressurized sprinkler irrigation can be used in a variety of terrain conditions, such as uneven land and steep land that cannot be irrigated with surface irrigation.

[0004] In the process of fertilizing farmland, the method of sprinkler irrigation is used. The diversification of water outlets and nozzles is conducive to regulating the water supply and water penetration rate. By controlling the reasonable ratio of water volume and water-soluble fertilizers, it conforms to the characteristics of plant roots continuously absorbing nutrients and reduces leaching losses caused by one-time large-scale fertilization. However, the disadvantage of sprinkler irrigation is that it is impossible to accurately control the fertilizer injection rate and nutrient concentration in the sprinkler water. Before each sprinkler irrigation, the fertilizer must be re-loaded into the fertilizer tank and fully diluted and dissolved, which increases the time used for fertilization and the labor intensity of personnel, and reduces the fertilization efficiency of farmland. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides an intelligent irrigation system for precise regulation of farmland water and fertilizer; thereby solving the problem that the disadvantage of sprinkler fertilization is that the fertilizer injection rate and nutrient concentration in the sprinkler water cannot be reasonably controlled, thereby reducing the efficiency of fertilization in the farmland.

[0006] The technical solution adopted by the present invention to solve its technical problems is an intelligent irrigation system for precise regulation of water and fertilizer in farmland, comprising a ground plug, a water and fertilizer tank and a nozzle, wherein a pin for inserting soil is arranged on one side of the ground plug, the nozzle is fixedly installed on the other side of the ground plug, the water and fertilizer tank is located on the upper side of the nozzle, a fertilizer mixing pipe is fixedly installed in the middle of the nozzle, the bottom of the water and fertilizer tank is connected with the fertilizer mixing pipe through a lower fertilizer pipe, and further comprises a dispersion sheet, a discharge pipe is fixedly installed at the lower part of the fertilizer mixing pipe, the discharge pipe is coaxial with the fertilizer mixing pipe, the inside of the discharge pipe is hollow, the dispersion sheet is rotatably installed at the outlet position of the discharge pipe, a limiting flow pipe is arranged in the middle of the nozzle, and the limiting flow pipe is connected with the upper cavity of the discharge pipe after passing through the upper part of the fertilizer mixing pipe.

[0007] Preferably, a spiral fan is fixedly mounted on one end of the dispersion sheet, and the spiral fan is located at the cavity outlet of the discharge pipe.

[0008] Preferably, a flow limiting solenoid valve is fixedly installed on the flow limiting tube.

[0009] Preferably, a power compartment is provided at the upper part of the fertilizer mixing pipe, an impeller is rotatably installed in the power compartment, the middle part of the flow limiting pipe is connected to the power compartment, a rotary grinding roller is rotatably installed in the fertilizer mixing pipe, and one end of the rotary grinding roller passes through the power compartment and is fixedly connected to the impeller.

[0010] Preferably, the pulverizing roller is a tapered cylindrical structure that is wide at the top and narrow at the bottom. The inner wall of the fertilizer mixing tube is provided with a pulverizing layer that matches the outer contour of the pulverizing roller. Both the pulverizing roller and the pulverizing layer are provided with rough surfaces, and the pulverizing layer is located below the outlet of the lower fertilizer tube.

[0011] Preferably, the outer rough surface of the laparoscopic roller is made of a tough material, the gap between the laparoscopic roller and the laparoscopic layer gradually decreases from top to bottom, and an expansion joint is circumferentially arranged on the laparoscopic roller.

[0012] Preferably, a leakage sheet is provided at the bottom of the fertilizer mixing pipe, the leakage sheet is located below the rotary grinding layer, the end of the discharge pipe is inserted into the inner side of the fertilizer mixing pipe, and the plug-in section of the discharge pipe is provided with a leakage layer connected to the leakage sheet.

[0013] Preferably, a plurality of leakage holes are circumferentially provided at the bottom of the power bin, a sealing sheet is fixedly provided at the upper end of the rotary grinding roller and rotatably fits with the bottom of the power bin, the sealing sheet is located below the leakage holes, and a plurality of leakage grooves connected with the leakage holes are evenly provided at the sliding contact end surface of the sealing sheet.

[0014] Preferably, a combined frame is fixedly installed on the outer side of the ground plug sheet, a ground plug rod is slidably installed on the combined frame, a supporting foot is provided at the bottom of the ground plug rod, and the water and fertilizer box is fixedly installed in the combined frame.

[0015] Preferably, a height slot is provided on one side of the ground rod along its axial direction, and a locking bolt matching the height slot is installed on the assembly frame.

[0016] Beneficial effects of the present invention:

[0017] (1) In the present invention, by adjusting the height of the nozzle, the spreading area of ​​the water-soluble fertilizer can be additionally controlled during the fertilization process, thereby reducing the amount of building material resources consumed during the sprinkler fertilization process, thereby improving the fertilization efficiency and reducing costs.

[0018] (2) In the present invention, by actively intervening in the fertilizer mixing box, the amount of water-soluble fertilizer added during sprinkler irrigation can be accurately controlled, the injection rate of the water-soluble fertilizer into the flowing water during fertilization is increased, the controllability of the nutrient concentration of the water-soluble fertilizer during sprinkler irrigation fertilization is improved, and the uniformity of fertilization is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the first overall connection structure of the present invention;

[0021] Figure 2 for Figure 1 A top view schematic diagram of

[0022] Figure 3 is a positional relationship diagram between the nozzle and the flow limiting tube in the present invention;

[0023] Figure 4 Schematic diagram of the positional relationship between the rotary grinding roller and the fertilizer mixing tube in the present invention;

[0024] Figure 5 for Figure 4 A is an enlarged schematic diagram;

[0025] Figure 6 for Figure 4 The enlarged schematic diagram of point B in FIG.

[0026] Figure 7 for Figure 4 The enlarged schematic diagram of point C in FIG.

[0027] In the figure:

[0028] 1. Ground plug; 2. Water and fertilizer box; 3. Spray pipe; 11. Pin; 4. Fertilizer mixing pipe; 21. Fertilizer feeding pipe; 6. Dispersion sheet; 7. Discharge pipe; 31. Current limiting pipe; 61. Spiral fan; 32. Current limiting solenoid valve; 8. Power compartment; 81. Impeller; 9. Grinding roller; 41. Grinding layer; 91. Expansion joint; 42. Leakage sheet; 71. Leakage layer; 82. Leakage hole; 92. Sealing sheet; 93. Leakage trough; 12. Combination frame; 13. Ground plug rod; 14. Support foot; 15. Height slot; 16. Locking bolt. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] The embodiment of the present invention solves the problem that the fertilizer injection rate and nutrient concentration in the sprinkler water cannot be reasonably controlled during sprinkler fertilization, thereby reducing the fertilizer supplementation efficiency of the farmland, by providing an intelligent irrigation system for precise control of farmland water and fertilizer.

[0031] like Figures 1 to 7As shown, a preferred embodiment of the present invention proposes an intelligent irrigation system for precise regulation of water and fertilizer in farmland, comprising a ground plug 1, a water and fertilizer tank 2 and a nozzle 3, wherein one side of the ground plug 1 is provided with a plug pin 11 for cutting soil, the nozzle 3 is fixedly installed on the other side of the ground plug 1, the water and fertilizer tank 2 is located on the upper side of the nozzle 3, a fertilizer mixing pipe 4 is fixedly installed in the middle of the nozzle 3, the bottom of the water and fertilizer tank 2 is connected to the fertilizer mixing pipe 4 through a lower fertilizer pipe 21, and further comprises a dispersion sheet 6, the mixing A discharge pipe 7 is fixedly installed at the lower part of the fertilizer pipe 4. The discharge pipe 7 is coaxial with the fertilizer mixing pipe 4. The inside of the discharge pipe 7 is hollow. The dispersion sheet 6 is rotatably installed at the outlet position of the discharge pipe 7. A limiting flow pipe 31 is arranged in the middle part of the nozzle 3. The limiting flow pipe 31 is connected with the upper cavity of the discharge pipe 7 after passing through the upper part of the fertilizer mixing pipe 4. A spiral fan 61 is fixedly installed at one end of the dispersion sheet 6. The spiral fan 61 is located at the cavity outlet position of the discharge pipe 7. A limiting flow solenoid valve 32 is fixedly installed on the limiting flow pipe 31.

[0032] During operation, first, fill the water-soluble fertilizer of a predetermined volume or weight into the water-fertilizer tank 2 according to the field area to be fertilized. Then, connect one end of the water inlet of the nozzle 3 to the pre-buried water pipe. The water flow in the subsequent sprinkler fertilization process is adjusted and controlled by the operation of the current-limiting solenoid valve 32. The dispersion sheet 6 arranged at the end of the discharge pipe 7 can rotate by the spinning ability of the propeller fan 61 when the water flow is sprayed out, thereby realizing the dispersion of the water flow outlet, improving the uniformity of the sprinkler irrigation area and the fertilization concentration of the water-soluble fertilizer. When it is necessary to fertilize the plant root area, the nozzle 3 is fixed by the plug-in cooperation between the pin 11 on the ground plug sheet 1 and the soil. When large-scale farmland fertilization operations are required, multiple nozzles 3 can be evenly arranged to improve the fertilization efficiency. In addition, the bottom of the water-fertilizer tank 2 can be simultaneously provided with a solenoid valve assembly for controlling the opening and closing of the lower fertilizer pipe 21, so as to realize the free switching of sprinkler fertilization or separate sprinkler watering functions, thereby improving the applicable scenarios.

[0033] Further, such as Figures 1 to 6 As shown, a combination frame 12 is fixedly installed on the outer side of the ground plug 1, a ground plug rod 13 is slidably installed on the combination frame 12, a support leg 14 is provided at the bottom of the ground plug rod 13, the water and fertilizer tank 2 is fixedly installed in the combination frame 12, a height groove 15 is opened on one side of the ground plug rod 13 along its axial direction, and a locking bolt 16 matching the height groove 15 is installed on the combination frame 12.

[0034] With the changes in the demand for planting crops and fertilizing methods in the farmland, a ground plug 13 can be installed in the farmland, and the ground plug 13 can be fixed by the support legs 14 so that the ground plug 13 is erected in the farmland. Then, the combination frame 12 is installed on the ground plug 13, and the installation height of the combination frame 12 is further adjusted by the cooperation between the locking bolts 16 and the height slots 15. At this time, the ground plug 1 is installed in an inverted state on the combination frame 12, so that the dispersion sheet 6 faces downward. At this time, the water-soluble fertilizer is fertilized from top to bottom with the water flow, thereby adapting to the changes in the growth height of crops in the farmland. At the same time, the height adjustment method can also be used to additionally control the spreading area of ​​the water-soluble fertilizer during the fertilization process, reduce the amount of building material resources required during sprinkler fertilization, and reduce costs while improving fertilization efficiency.

[0035] Furthermore, in order to achieve accurate addition of water-soluble fertilizers during sprinkler irrigation, Figures 1 to 6 As shown, a power bin 8 is provided at the upper part of the fertilizer mixing pipe 4, an impeller 81 is rotatably installed in the power bin 8, the middle part of the flow limiting pipe 31 is connected to the power bin 8, a pulverizing roller 9 is rotatably installed in the fertilizer mixing pipe 4, and one end of the pulverizing roller 9 passes through the power bin 8 and is fixedly connected with the impeller 81, the pulverizing roller 9 is a conical cylindrical structure that is wide at the top and narrow at the bottom, and the inner wall of the fertilizer mixing pipe 4 is provided with a pulverizing layer 41 that matches the outer contour of the pulverizing roller 9, the pulverizing roller 9 and the pulverizing layer 41 are both provided with rough surfaces, and the pulverizing layer 41 is located below the outlet of the lower fertilizer pipe 21, the outer rough surface of the pulverizing roller 9 is made of tough material, the gap between the pulverizing roller 9 and the pulverizing layer 41 gradually decreases from top to bottom, and an expansion joint 91 is circumferentially provided on the pulverizing roller 9.

[0036] During operation, with the opening of the current limiting solenoid valve 32, the water flows in the current limiting pipe 31, and enters the discharge pipe 7 after passing through the power compartment 8, and is ejected outward at the bottom of the dispersion sheet 6. In this process, the water flows and impacts the impeller 81, causing the impeller 81 to rotate. The speed of the impeller 81 can be further regulated by controlling the flow rate and flow rate of the water. When the impeller 81 rotates, it drives the rotary grinding roller 9 to rotate synchronously. At this time, the water-soluble fertilizer in the water-fertilizer tank 2 flows into the lower fertilizer pipe 21 by gravity, and further falls into the internal cavity of the mixing fertilizer pipe 4. With the rotation of the rotary grinding roller 9, a relative misalignment is generated between it and the rotary grinding layer 41, so that the water-soluble fertilizer falling into the cavity of the mixing fertilizer pipe 4 is ground and decomposed, and the decomposed powder is in a state of being in a powder state. The fertilizer further penetrates and falls, and merges with the flowing water during the sprinkler irrigation process, thereby realizing the orderly addition of water-soluble fertilizers, and the grinding rate of the water-soluble fertilizers matches the water flow rate, and the greater the water flow rate, the greater the content of water-soluble fertilizers added. At the same time, the pulverizing roller 9 is made of tough material and is additionally provided with an expansion joint 91. When the sprinkler irrigation water flow rate gradually increases, the rotation speed of the pulverizing roller 9 also increases relatively. Under the centrifugal action, the outer layer of the tough material of the pulverizing roller 9 gradually expands elastically outward. This process reduces the gap between the pulverizing roller 9 and the pulverizing layer 41, and shrinks it, thereby increasing the pressure on the water-soluble fertilizer particles falling into this gap, further improving their decomposition and crushing efficiency, and increasing the fertilizer content in the flowing water during the subsequent sprinkler irrigation process.

[0037] Furthermore, in order to increase the fusion rate between water-soluble fertilizers and running water and improve the control of fertilizer application, Figures 1 to 6 As shown, a leakage piece 42 is provided at the bottom of the fertilizer mixing pipe 4, and the leakage piece 42 is located below the rotary grinding layer 41. The end of the discharge pipe 7 is inserted into the inner side of the fertilizer mixing pipe 4, and the plug-in section of the discharge pipe 7 is provided with a leakage layer 71 connected with the leakage piece 42. A plurality of leakage holes 82 are circumferentially provided at the bottom of the power bin 8. A sealing piece 92 is fixedly provided at the upper end of the rotary grinding roller 9 and is rotatably fitted with the bottom of the power bin 8. The sealing piece 92 is located below the leakage hole 82, and a plurality of leakage grooves 93 connected with the leakage hole 82 are evenly provided at the sliding contact end surface of the sealing piece 92.

[0038] As the rotary grinding roller 9 rotates while grinding the water-soluble fertilizer, it drives the sealing sheet 92 to rotate synchronously, and drives the leakage groove 93 on its upper part to rotate synchronously through the sealing sheet 92. Since the flow of water in the power chamber 8 is still under high pressure, when the leakage groove 93 rotates to a predetermined position and overlaps with the leakage hole 82, part of the flow water in the power chamber 8 immediately flows into the internal gap of the fertilizer mixing pipe 4 through the leakage hole 82 and the leakage groove 93, flushing the water-soluble fertilizer in the process of crushing and decomposing, accelerating the decomposition rate of the granular water-soluble fertilizer, and also facilitating the further dissolution and infiltration of the powdered water-soluble fertilizer. The infiltrated water-soluble fertilizer solution flows to the mixing pipe 4 after passing through the leakage sheet 42. The bottom of the fertilizer pipe 4, and finally flows into the discharge pipe 7 from the leakage layer 71, merges with the flowing water in the discharge pipe 7 and is sprayed outward, further increasing the injection rate of the water-soluble fertilizer and the flowing water during the fertilization process, improving the nutrient concentration of the water-soluble fertilizer during the sprinkler fertilization process, and improving the uniformity of fertilization. In addition, by intermittent injection of flowing water into the fertilizer mixing pipe 4, when fertilization is not needed and only irrigation is required, the intermittent flushing effect of the water flow can also achieve the self-cleaning effect of the fertilizer crushing area in the fertilizer mixing pipe 4, thereby realizing the anti-cross-addition process of multiple elements or types of water-soluble fertilizers, reducing the need for additional cleaning process, and saving the consumption of manpower and material resources.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent irrigation system for precise control of water and fertilizer in farmland, comprising a ground plug (1), a water and fertilizer tank (2) and a nozzle (3), wherein one side of the ground plug (1) is provided with a plug pin (11) for inserting soil, the nozzle (3) is fixedly mounted on the other side of the ground plug (1), the water and fertilizer tank (2) is located on the upper side of the nozzle (3), and is characterized in that: A fertilizer mixing pipe (4) is fixedly installed in the middle of the spray pipe (3), and the bottom of the water-fertilizer tank (2) is connected to the fertilizer mixing pipe (4) through a lower fertilizer pipe (21). In addition, the system further comprises: A liquid dispersion sheet (6) is provided, wherein a discharge pipe (7) is fixedly mounted at the lower part of the fertilizer mixing pipe (4), the discharge pipe (7) is coaxial with the fertilizer mixing pipe (4), the interior of the discharge pipe (7) is hollow, the liquid dispersion sheet (6) is rotatably mounted at the outlet position of the discharge pipe (7), a limiting flow pipe (31) is provided at the middle part of the spray pipe (3), and the limiting flow pipe (31) is connected to the upper cavity of the discharge pipe (7) after passing through the upper part of the fertilizer mixing pipe (4).

2. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 1, it is characterized by: A spiral fan (61) is fixedly mounted on one end of the liquid dispersion sheet (6), and the spiral fan (61) is located at the cavity outlet of the discharge pipe (7).

3. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 1, it is characterized by: A flow limiting solenoid valve (32) is fixedly mounted on the flow limiting tube (31).

4. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 1, it is characterized by: A power bin (8) is arranged at the upper part of the fertilizer mixing pipe (4), an impeller (81) is rotatably mounted in the power bin (8), a middle part of the flow limiting pipe (31) is connected to the power bin (8), a rotary grinding roller (9) is rotatably mounted in the fertilizer mixing pipe (4), and one end of the rotary grinding roller (9) passes through the power bin (8) and is fixedly connected to the impeller (81).

5. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 4, it is characterized by: The pulverizing roller (9) is a tapered cylindrical structure that is wide at the top and narrow at the bottom. The inner wall of the fertilizer mixing tube (4) is provided with a pulverizing layer (41) that matches the outer profile of the pulverizing roller (9). Both the pulverizing roller (9) and the pulverizing layer (41) are provided with rough surfaces, and the pulverizing layer (41) is located below the outlet of the lower fertilizer tube (21).

6. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 5, it is characterized by: The outer rough surface of the laparoscopic roller (9) is made of a tough material, the gap between the laparoscopic roller (9) and the laparoscopic layer (41) gradually decreases from top to bottom, and an expansion joint (91) is circumferentially arranged on the laparoscopic roller (9).

7. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 4, it is characterized by: A leakage sheet (42) is provided at the bottom of the fertilizer mixing pipe (4), the leakage sheet (42) is located below the rotary grinding layer (41), the end of the discharge pipe (7) penetrates and is plugged into the inner side of the fertilizer mixing pipe (4), and the plug-in section of the discharge pipe (7) is provided with a leakage layer (71) in communication with the leakage sheet (42).

8. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 4, it is characterized by: The bottom of the power bin (8) is provided with a plurality of leakage holes (82) in the circumferential direction, and a sealing sheet (92) is fixedly provided at the upper end of the rotary grinding roller (9) and is rotatably fitted with the bottom of the power bin (8). The sealing sheet (92) is located below the leakage holes (82), and a plurality of leakage grooves (93) connected to the leakage holes (82) are evenly provided at the sliding contact end surface of the sealing sheet (92).

9. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 1, it is characterized by: A combined frame (12) is fixedly mounted on the outer side of the ground plug sheet (1), a ground plug rod (13) is slidably mounted on the combined frame (12), a support foot (14) is provided at the bottom of the ground plug rod (13), and a water fertilizer box (2) is fixedly mounted in the combined frame (12).

10. According to the intelligent irrigation system for precise control of farmland water and fertilizer as described in claim 9, it is characterized by: A height slot (15) is provided on one side of the ground rod (13) along its axial direction, and a locking bolt (16) matching the height slot (15) is installed on the assembly frame (12).

Images