Quantitative feeding device and water-nitrogen cooperative automatic irrigation control system

Abstract

The utility model relates to a quantitative feeding device and a water-nitrogen cooperative automatic irrigation control system, and relates to the technical field of quantitative feeding and water-nitrogen cooperative automatic irrigation. The quantitative feeding device comprises a material mixing tank, a feeding device and a feeding device, the material mixing tank is connected with the feeding mechanism, the material mixing tank is provided with a water inlet, and a material mixing mechanism is arranged in the material mixing tank; wherein the feeding mechanism is used for feeding a first preset flow of fertilizer into the mixing tank; and the mixing mechanism is used for stirring the second preset flow of water entering the mixing tank from the water inlet and the first preset flow of fertilizer. According to the embodiment of the invention, quantitative feeding and water-nitrogen collaborative automatic irrigation can be realized.

Description

Technical Field

[0001] This disclosure relates to the field of quantitative feeding and water-nitrogen coordinated automatic irrigation technology, and in particular to a quantitative feeding device and a water-nitrogen coordinated automatic irrigation control system. Background Technology

[0002] To ensure normal crop growth and achieve high and stable yields, crops must be supplied with sufficient water. Under natural conditions, insufficient or uneven rainfall often fails to meet the water requirements of crops. Therefore, artificial irrigation is necessary to supplement the lack of natural rainfall.

[0003] Solution fertilizers are homogeneous liquid fertilizers that dissolve nitrogen, phosphorus, potassium, and trace elements in water. They are one of the three major types of liquid fertilizers, formulated with high-purity raw materials such as ammonium polyphosphate. They possess the technical characteristics of balanced nutrient distribution, high absorption efficiency, and ease of precise application, and have become an important technical means for water and fertilizer management. In particular, winter wheat is one of my country's important food crops, with a wide planting area and yields that are of great significance to national food security. During the cultivation of winter wheat, water and fertilizer management is one of the key factors in improving yield and quality.

[0004] Currently, existing fertilization methods (such as winter wheat fertilization) mainly rely on manual broadcasting. Manual broadcasting makes it difficult to accurately apply fertilizer according to the crop's nutrient requirements, which can easily lead to uneven fertilizer distribution. In some areas, excessive fertilizer can cause seedling burn or nutrient loss, while in areas where fertilizer is insufficient, the crop's needs cannot be met, thus restricting yield increases. Summary of the Invention

[0005] This disclosure proposes a technical solution for quantitative feeding and water-nitrogen coordinated automatic irrigation.

[0006] According to one aspect of this disclosure, a quantitative feeding device is provided, comprising: a mixing tank; the mixing tank is connected to a feeding mechanism, the mixing tank is provided with a water inlet, and the mixing mechanism is provided inside the mixing tank;

[0007] The feeding mechanism is used to feed fertilizer at a first preset flow rate into the mixing tank; the mixing mechanism is used to mix water at a second preset flow rate and fertilizer at the first preset flow rate that enter the mixing tank through the inlet.

[0008] Preferably, the feeding mechanism includes: a storage tank, a feeding pipe connected to the storage tank and the mixing tank respectively, a first solenoid valve and a first flow sensor disposed on the feeding pipe; wherein, the first flow sensor is used to detect the first flow rate of the fertilizer entering the mixing tank; the first solenoid valve is used to control the opening or closing of the fertilizer flow channel connected to the mixing tank by the feeding pipe.

[0009] Preferably, the storage bin is provided with an inlet for the fertilizer to enter the storage bin.

[0010] Preferably, the water inlet is connected to a water inlet pipeline, and a third solenoid valve and a second flow sensor are installed on the water inlet pipeline; wherein, the second flow sensor is used to detect the second flow rate of the water entering the mixing tank; the third solenoid valve is used to control the opening or closing of the water flow channel connecting the water inlet pipeline and the mixing tank.

[0011] Preferably, the quantitative feeding device further includes a controller; wherein the controller is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe and the mixing tank through the first solenoid valve according to the first flow rate and the first preset flow rate.

[0012] Preferably, the controller includes: a processor and a memory connected to the processor; wherein the processor is used to store the first preset flow rate; the processor is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe and the mixing tank through the first solenoid valve according to the first flow rate and the first preset flow rate.

[0013] Preferably, it further includes: a controller; wherein the controller is used to control the opening or closing of the water flow channel connecting the water inlet pipeline and the mixing tank through the third solenoid valve according to the second flow rate and the second preset flow rate.

[0014] Preferably, the controller includes: a processor and a memory connected to the processor; wherein the processor is used to store the second preset flow rate; the processor is used to control the opening or closing of the water flow channel connecting the water inlet pipeline and the mixing tank through the third solenoid valve according to the second flow rate and the second preset flow rate.

[0015] Preferably, the mixing mechanism includes: a driving mechanism and a stirring mechanism connected to the driving mechanism; wherein the driving mechanism is used to drive the stirring mechanism to stir the mixture of water and fertilizer in the mixing tank.

[0016] Preferably, the stirring mechanism includes: a rotating rod connected to the driving mechanism, a rotating frame connected to the rotating rod, and a stirring plate connected to the rotating frame.

[0017] Preferably, the rotating frame includes: a first driven rotary joint and a second driven rotary joint respectively connected to both sides of the rotating rod; a plurality of first stirring plates and a plurality of second stirring plates are respectively provided on both sides of the first driven rotary joint and the second driven rotary joint.

[0018] Preferably, the rotating rod is further provided with a first connecting sleeve for connecting one end of the first driven rotary joint and one end of the second driven rotary joint, and a second connecting sleeve for connecting the other end of the first driven rotary joint and the other end of the second driven rotary joint.

[0019] Preferably, the plurality of first stirring plates and the plurality of second stirring plates are each provided with a first through hole.

[0020] Preferably, the rotating rod is further provided with a third connecting sleeve at its end inside the mixing tank for connecting multiple third stirring plates; and / or, the multiple third stirring plates are provided with second through holes.

[0021] Preferably, the drive mechanism is configured as a motor.

[0022] Preferably, the quantitative feeding device further includes a support for placing the mixing tank.

[0023] Preferably, the support includes: a horizontal plate for placing the mixing tank and a vertical plate connected to the horizontal plate; one end of the vertical plate is connected to the horizontal plate, and the other end of the vertical plate is connected to a support frame for supporting the feeding mechanism, and support plates are respectively provided on both sides of the support frame.

[0024] Preferably, the feeding pipe of the feeding mechanism passes through the support frame and is connected to the mixing tank.

[0025] Preferably, an installation space is provided between the mixing tank and the horizontal plate.

[0026] Preferably, a mixing platform is provided on one side of the mixing tank; a mixing platform bracket is provided on one side of the mixing platform; and the installation space is formed between the mixing platform brackets.

[0027] Preferably, it further includes a sprayer connected to the mixing tank.

[0028] Preferably, the spraying mechanism includes a delivery pipe connected to the fertilizer outlet pipe of the mixing tank.

[0029] Preferably, the spraying mechanism further includes: a concentration detection sensor disposed on the mixing tank or the fertilizer outlet pipe of the mixing tank or the delivery pipe, and a first solenoid valve disposed on the delivery pipe; wherein, the concentration detection sensor is used to detect the concentration of the water-fertilizer solution discharged from the mixing tank; and the first solenoid valve is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe.

[0030] Preferably, the spraying mechanism further includes a fertilizer pump disposed in the delivery pipe; wherein the fertilizer pump is used to provide drainage power for the water-fertilizer solution in the delivery pipe.

[0031] Preferably, one end of the delivery pipe is connected to the fertilizer outlet pipe, and the other end of the delivery pipe is connected to the nozzle.

[0032] Preferably, the quantitative feeding device further includes a controller; wherein the controller is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe through the first solenoid valve according to the concentration and the preset concentration.

[0033] Preferably, the controller includes: a processor and a memory connected to the processor; wherein the processor is used to store the preset concentration; the processor is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe through the first solenoid valve according to the concentration and the preset concentration.

[0034] According to one aspect of this disclosure, a water-nitrogen coordinated automatic irrigation control system is provided, characterized in that it includes: a quantitative feeding device as described above; and,

[0035] Controller;

[0036] The input terminal of the controller is connected to at least one or more of the following sensors: a first flow sensor and a second flow sensor installed on the feeding pipe of the feeding mechanism; and a concentration detection sensor installed on the mixing tank or the fertilizer outlet pipe of the mixing tank or the delivery pipe of the spraying mechanism connected to the mixing tank; wherein the fertilizer is configured as nitrogen fertilizer.

[0037] The output terminal of the controller is connected to at least one or more of the following solenoid valves: the first solenoid valve corresponding to the first flow sensor, the third solenoid valve corresponding to the second flow sensor, and the second solenoid valve corresponding to the concentration detection sensor.

[0038] The controller is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe and the mixing tank through the first solenoid valve based on the first flow rate detected by the first flow sensor and the first preset flow rate.

[0039] The controller is used to control the opening or closing of the water flow channel connecting the water inlet pipeline and the mixing tank through the third solenoid valve based on the second flow rate detected by the second flow sensor and the second preset flow rate.

[0040] The controller is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe of the spraying mechanism connected to the mixing tank through the first solenoid valve, based on the concentration of the water-fertilizer solution detected by the concentration detection sensor and the preset concentration.

[0041] Preferably, the water-nitrogen coordinated automatic irrigation control system further includes: a fertilizer pump connected to the controller; wherein the controller is used to control the opening or closing of the fertilizer pump.

[0042] Preferably, the controller includes: a processor and a memory connected to the processor; wherein the processor is used to store the first preset flow rate; the processor is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe and the mixing tank through the first solenoid valve according to the first flow rate and the first preset flow rate.

[0043] Preferably, the controller includes: a processor and a memory connected to the processor; wherein the processor is used to store the second preset flow rate; the processor is used to control the opening or closing of the water flow channel connecting the water inlet pipeline and the mixing tank through the third solenoid valve according to the second flow rate and the second preset flow rate.

[0044] Preferably, the controller includes: a processor and a memory connected to the processor; wherein the processor is used to store the preset concentration; the processor is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe through the first solenoid valve according to the concentration and the preset concentration.

[0045] In this embodiment of the disclosure, a technical solution is proposed for quantitative feeding and water-nitrogen coordinated automatic irrigation to solve the problem that existing fertilization methods (such as winter wheat fertilization) mainly rely on manual broadcasting. Manual broadcasting is difficult to accurately fertilize according to the crop's fertilizer requirements, which can easily lead to uneven fertilizer distribution, local over-fertilization causing seedling burn or nutrient loss, and insufficient fertilization in areas that cannot meet the crop's needs.

[0046] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0047] Other features and aspects of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0048] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the specification, serve to illustrate the technical solutions of this disclosure.

[0049] Figure 1 A three-dimensional structural schematic diagram of a quantitative feeding device according to an embodiment of the present disclosure is shown from a first perspective.

[0050] Figure 2 A three-dimensional structural schematic diagram of the spraying mechanism and the feeding mechanism in the quantitative feeding device according to an embodiment of the present disclosure is shown from a second perspective.

[0051] Figure 3A three-dimensional structural diagram of the mixing mechanism in a quantitative feeding device according to an embodiment of the present disclosure is shown from a third perspective.

[0052] Figure 4 A system block diagram of a water-nitrogen coordinated automatic irrigation control system according to an embodiment of the present disclosure is shown.

[0053] exist Figures 1 to 4 In the middle section: 1. Support frame; 11. Horizontal plate; 12. Vertical plate; 2. Mixing tank; 21. Mixing platform; 22. Mixing platform support; 23. Installation space; 24. Water inlet; 25. Concentration detection sensor; 3. Spraying mechanism; 31. Fertilizer outlet pipe; 32. Second solenoid valve; 33. Fertilizer pump; 34. Conveying pipe; 4. Feeding mechanism; 40. Feed inlet; 41. Storage tank; 42. Feeding pipe; 43. First solenoid valve; 44. First flow sensor; 5. Mixing mechanism; 51. Motor; 52. 521. Rotating rod; 522. First connecting sleeve; 523. Second connecting sleeve; 524. Third connecting sleeve; 53. Rotating frame; 531. First driven rotary joint; 532. Second driven rotary joint; 54. First stirring plate; 55. Second stirring plate; 6. Support frame; 7. Support plate; 8. First through hole; 9. Third stirring plate; 10. Second through hole; 110. Controller; 1101. Processor; 1102. Memory; 111. Third solenoid valve; 102. Second flow sensor. Detailed Implementation

[0054] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0055] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0056] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0057] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0058] It is understood that the various method embodiments mentioned above in this disclosure can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this disclosure will not elaborate further.

[0059] Figure 1 A three-dimensional structural schematic diagram of a quantitative feeding device according to an embodiment of the present disclosure is shown from a first perspective. Figure 2 A three-dimensional structural schematic diagram of the spraying mechanism and the feeding mechanism in the quantitative feeding device according to an embodiment of the present disclosure is shown from a second perspective. Figure 3 This diagram shows a three-dimensional structural schematic of the mixing mechanism in a quantitative feeding device according to an embodiment of the present disclosure from a third perspective.

[0060] like Figures 1 to 3 As shown in the figure, the quantitative feeding device proposed in this embodiment includes: a mixing tank 2; the mixing tank 2 is connected to a feeding mechanism 4, the mixing tank 2 is provided with a water inlet 24, and a mixing mechanism 5 is provided inside the mixing tank 2; wherein, the feeding mechanism 4 is used to feed fertilizer of a first preset flow rate into the mixing tank 2; the mixing mechanism 5 is used to stir water of a second preset flow rate and fertilizer of the first preset flow rate entering the mixing tank 2 through the water inlet 24. This addresses the technical problem that existing fertilization methods (e.g., winter wheat fertilization) mainly rely on manual spreading, which makes it difficult to accurately apply fertilizer according to the crop's nutrient requirements, easily leading to uneven fertilizer distribution, local over-fertilization causing seedling burn or nutrient loss, and insufficient fertilization failing to meet the crop's needs in areas where fertilizer is insufficient.

[0061] In the embodiments of this disclosure and other possible embodiments, fertilizer of a first preset flow rate is fed into the mixing tank 2 by the feeding mechanism 4, and the mixing mechanism 5 stirs the water of a second preset flow rate and the fertilizer of the first preset flow rate that enter the mixing tank 2 through the water inlet 24, thereby obtaining a preset concentration corresponding to a uniform water-fertilizer solution. This solves the problem that existing fertilization methods (such as winter wheat fertilization methods) mainly rely on manual spreading. Manual spreading makes it difficult to accurately fertilize according to the crop's fertilizer requirements, which easily leads to uneven fertilizer distribution, local over-fertilization causing seedling burn or nutrient loss, and insufficient fertilization areas cannot meet the crop's needs.

[0062] In the embodiments of this disclosure, the feeding mechanism 4 includes: a storage tank 41, a feeding pipe 42 connected to the storage tank 41 and the mixing tank 2 respectively, a first solenoid valve 43 and a first flow sensor 44 disposed on the feeding pipe 42; wherein, the first flow sensor 44 is used to detect the first flow rate of the fertilizer entering the mixing tank 2; the first solenoid valve 43 is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2.

[0063] In an embodiment of this disclosure, the storage tank 41 is provided with an inlet 40 for the fertilizer to enter the storage tank 41.

[0064] In the embodiments of this disclosure, the water inlet 24 is connected to the water inlet pipeline, and a third solenoid valve 111 and a second flow sensor 102 are provided on the water inlet pipeline; wherein, the second flow sensor 102 is used to detect the second flow rate of the water entering the mixing tank 2; the third solenoid valve 111 is used to control the opening or closing of the water flow channel connecting the water inlet pipeline and the mixing tank 2.

[0065] In the embodiments of this disclosure, the quantitative feeding device further includes a controller 110; wherein the controller is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 through the first solenoid valve 43 according to the first flow rate and the first preset flow rate.

[0066] In the embodiments of this disclosure and other possible embodiments, if the first flow rate reaches the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to open through the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to close through the first solenoid valve 43.

[0067] In embodiments of this disclosure and other possible embodiments, the controller may include or have a comparator internally disposed therein; wherein the comparator is used to compare the first flow rate and the first preset flow rate; if the first flow rate reaches the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to open via the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to close via the first solenoid valve 43.

[0068] In an embodiment of this disclosure, the controller 110 includes: a processor 1101 and a memory 1102 connected to the processor 1101; wherein, the processor 1101 is used to store the first preset flow rate; the processor 1101 is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 through the first solenoid valve 43 according to the first flow rate and the first preset flow rate.

[0069] In the embodiments of this disclosure and other possible embodiments, if the first flow rate reaches the first preset flow rate, the processor 1101 controls the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 to open through the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the processor 1101 controls the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 to close through the first solenoid valve 43.

[0070] In embodiments of this disclosure and other possible embodiments, the system further includes: a comparator or the controller includes or has a comparator internally configured; wherein the comparator is used to compare the first flow rate and the first preset flow rate; if the first flow rate reaches the first preset flow rate, the processor 1101 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to open via the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the processor 1101 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to close via the first solenoid valve 43.

[0071] In embodiments of this disclosure, a controller 110 is further included; wherein the controller is used to control the opening or closing of the water channel connecting the water inlet pipeline and the mixing tank 2 via the third solenoid valve 111 according to the second flow rate and the second preset flow rate.

[0072] In the embodiments of this disclosure and other possible embodiments, if the second flow rate reaches the second preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open through the third solenoid valve 111; if the first flow rate is less than the first preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close through the third solenoid valve 111.

[0073] In embodiments of this disclosure and other possible embodiments, the controller may include or have a comparator internally disposed therein; wherein the comparator is used to compare the second flow rate and the second preset flow rate; if the second flow rate reaches the second preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open via the third solenoid valve 111; if the first flow rate is less than the first preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close via the third solenoid valve 111.

[0074] In an embodiment of this disclosure, the controller 110 includes: a processor 1101 and a memory 1102 connected to the processor 1101; wherein, the processor 1101 is used to store the second preset flow rate; the processor 1101 is used to control the opening or closing of the water channel connecting the water inlet pipeline and the mixing tank 2 through the third solenoid valve 111 according to the second flow rate and the second preset flow rate.

[0075] In the embodiments of this disclosure and other possible embodiments, if the second flow rate reaches the second preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open through the third solenoid valve 111; if the first flow rate is less than the first preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close through the third solenoid valve 111.

[0076] In embodiments of this disclosure and other possible embodiments, the system further includes: a comparator or the controller includes or has a comparator internally configured; wherein the comparator is used to compare the second flow rate and the second preset flow rate; if the second flow rate reaches the second preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open via the third solenoid valve 111; if the second flow rate is less than the second preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close via the third solenoid valve 111.

[0077] In an embodiment of this disclosure, the mixing mechanism 5 includes: a driving mechanism and a stirring mechanism connected to the driving mechanism; wherein the driving mechanism is used to drive the stirring mechanism to stir the mixture of water and fertilizer in the mixing tank 2.

[0078] In embodiments of this disclosure, the stirring mechanism includes: a rotating rod 52 connected to the driving mechanism, a rotating frame 53 connected to the rotating rod 52, and a stirring plate connected to the rotating frame 53.

[0079] In the embodiments of this disclosure, the rotating frame 53 includes: a first driven rotary joint 531 and a second driven rotary joint 532 respectively connected to both sides of the rotating rod 52; a plurality of first stirring plates 54 and a plurality of second stirring plates 55 are respectively provided on both sides of the first driven rotary joint 531 and the second driven rotary joint 532.

[0080] In the embodiments of this disclosure, the rotating rod 52 is further provided with a first connecting sleeve 521 for connecting one end of the first driven rotary joint 531 and one end of the second driven rotary joint 532, and a second connecting sleeve 522 for connecting the other end of the first driven rotary joint 531 and the other end of the second driven rotary joint 532.

[0081] In the embodiments of this disclosure, the plurality of first stirring plates 54 and the plurality of second stirring plates 55 are respectively provided with first through holes 8.

[0082] In the embodiments of this disclosure, the rotating rod 52 is further provided with a third connecting sleeve at its end inside the mixing tank 2 for connecting a plurality of third stirring plates 9; wherein, the plurality of third stirring plates 9 are provided with a second through hole 10.

[0083] In embodiments of this disclosure and other possible embodiments, the drive mechanism is configured as a motor 51.

[0084] In the embodiments of this disclosure, the quantitative feeding device further includes a support 1 for placing the mixing tank 2.

[0085] In the embodiments of this disclosure, the support 1 includes: a horizontal plate 11 for placing the mixing tank 2 and a vertical plate 12 connected to the horizontal plate 11; one end of the vertical plate 12 is connected to the horizontal plate 11, and the other end of the vertical plate 12 is connected to a support frame 6 for supporting the feeding mechanism 4, and support plates 7 are respectively provided on both sides of the support frame 6.

[0086] In the embodiments of this disclosure, the feeding pipe 42 of the feeding mechanism 4 passes through the support frame 6 and is connected to the mixing tank 2.

[0087] In embodiments of this disclosure and other possible embodiments, an installation space 23 is provided between the mixing tank 2 and the horizontal plate 11.

[0088] In the embodiments of this disclosure, a mixing platform 21 is provided on one side of the mixing tank 2; a mixing platform support 22 is provided on one side of the mixing platform 21; and the installation space 23 is formed between the mixing platform supports 22.

[0089] In embodiments of this disclosure, a spraying mechanism 3 connected to the mixing tank 2 is further included; wherein the spraying mechanism 3 includes a delivery pipe 34 connected to the fertilizer outlet pipe 31 of the mixing tank 2.

[0090] In the embodiments of this disclosure, the spraying mechanism 3 further includes: a concentration detection sensor 25 disposed on the mixing tank 2 or the fertilizer outlet pipe 31 of the mixing tank 2 or the delivery pipe 34, and a first solenoid valve 43 disposed on the delivery pipe 34; wherein, the concentration detection sensor 25 is used to detect the concentration of the water-fertilizer solution discharged from the mixing tank 2; and the first solenoid valve 43 is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe 34.

[0091] In the embodiments of this disclosure, the spraying mechanism 3 further includes: a fertilizer pump 33 disposed in the delivery pipe 34; wherein the fertilizer pump 33 is used to provide drainage power for the water-fertilizer solution in the delivery pipe 34.

[0092] In embodiments of this disclosure and other possible embodiments, one end of the delivery pipe 34 is connected to the fertilizer outlet pipe 31, and the other end of the delivery pipe 34 is connected to the nozzle.

[0093] In the embodiments of this disclosure, the quantitative feeding device further includes a controller 110; wherein the controller is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe 34 through the first solenoid valve 43 according to the concentration and the preset concentration.

[0094] In the embodiments of this disclosure and other possible embodiments, if the concentration reaches the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open through the first solenoid valve 43; if the concentration is less than the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close through the first solenoid valve 43.

[0095] In embodiments of this disclosure and other possible embodiments, the concentration detection sensor 25 may be configured as a water concentration sensor; wherein, the water concentration sensor is used to detect the water concentration corresponding to the fertilizer solution discharged from the mixing tank 2.

[0096] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the type of the concentration detection sensor 25 according to actual needs. For example, if the nitrogen concentration corresponding to the fertilizer solution discharged from the mixing tank 2 is being detected, the concentration detection sensor 25 can be configured as a nitrogen concentration detection sensor.

[0097] In the embodiments of this disclosure and other possible embodiments, the quantitative feeding device further includes: a subtractor or a subtractor installed in the controller 110; the subtractor subtracts the water concentration corresponding to the water concentration sensor from the set value 1 to obtain the concentration of the fertilizer solution discharged from the mixing tank 2.

[0098] In embodiments of this disclosure and other possible embodiments, the method further includes: a comparator or the controller includes or has a comparator internally disposed therein; wherein the comparator is used to compare the concentration with the preset concentration; if the concentration reaches the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open through the first solenoid valve 43; if the concentration is less than or greater than the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close through the first solenoid valve 43.

[0099] In an embodiment of this disclosure, the controller 110 includes: a processor 1101 and a memory 1102 connected to the processor 1101; wherein, the processor 1101 is used to store the preset concentration; the processor 1101 is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe 34 through the first solenoid valve 43 according to the concentration and the preset concentration.

[0100] In the embodiments of this disclosure and other possible embodiments, if the concentration reaches the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open through the first solenoid valve 43; if the concentration is less than or greater than the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close through the first solenoid valve 43.

[0101] In embodiments of this disclosure and other possible embodiments, the system further includes: a comparator or the controller includes or has a comparator internally configured; wherein the comparator is used to compare the concentration with the preset concentration; if the concentration reaches the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open via the first solenoid valve 43; if the concentration is less than or greater than the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close via the first solenoid valve 43.

[0102] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the first preset flow rate, the second preset flow rate, and the preset concentration according to actual needs.

[0103] In embodiments of this disclosure and other possible embodiments, the controller 110 or the processor 1101 is configured as a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a microcontroller, a microprocessor, or a single-chip microcomputer. For example, the controller 110 or the processor 1101 is configured as an STM32F0 single-chip microcomputer.

[0104] In embodiments of this disclosure and other possible embodiments, the memory 1102 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0105] In embodiments of this disclosure and other possible embodiments, an input mechanism connected to the controller 110 or the memory 1102 is further included; wherein the input mechanism is used to input one or more of the first preset flow rate, the second preset flow rate, and the preset concentration to the controller 110 or the memory 1102.

[0106] In embodiments of this disclosure and other possible embodiments, the input mechanism may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0107] Figure 4 A system block diagram of a water-nitrogen coordinated automatic irrigation control system according to an embodiment of the present disclosure is shown. Figure 4As shown in the embodiments of this disclosure, the water-nitrogen coordinated automatic irrigation control system includes: a quantitative feeding device as described above; and a controller 110; the input terminal of the controller 110 is connected to at least one or more of the following sensors: a first flow sensor 44, a second flow sensor 102, and a concentration detection sensor 25, which are installed on the feeding pipe 42 of the feeding mechanism 4 and on the fertilizer outlet pipe 31 of the mixing tank 2 or the delivery pipe 34 of the spraying mechanism 3 connected to the mixing tank 2; wherein the fertilizer is configured as nitrogen fertilizer; the output terminal of the controller 110 is connected to at least one of the following sensors: a first solenoid valve 43 corresponding to the first flow sensor 44, a third solenoid valve 111 corresponding to the second flow sensor 102, and a second solenoid valve corresponding to the concentration detection sensor 25. One or more solenoid valves are connected in 32; wherein, the controller 110 is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 through the first solenoid valve 43 according to the first flow rate detected by the first flow sensor 44 and the first preset flow rate; wherein, the controller 110 is used to control the opening or closing of the water flow channel connected to the mixing tank 2 through the third solenoid valve 111 according to the second flow rate detected by the second flow sensor 102 and the second preset flow rate; wherein, the controller 110 is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe 34 of the spraying mechanism 3 connected to the mixing tank 2 through the first solenoid valve 43 according to the concentration of the water-fertilizer solution detected by the concentration detection sensor 25 and the preset concentration.

[0108] In the embodiments of this disclosure and other possible embodiments, the controller 110 is wirelessly connected to one or more of the following sensors: a first flow sensor 44, a second flow sensor 102 disposed on the feeding pipe 42 of the feeding mechanism 4, and a concentration detection sensor 25 disposed on the mixing tank 2, the fertilizer outlet pipe 31 of the mixing tank 2, or the delivery pipe 34 of the spraying mechanism 3 connected to the mixing tank 2.

[0109] In embodiments of this disclosure and other possible embodiments, the controller 110 is provided with a communication component to facilitate wired or wireless communication between the input terminal of the controller 110 and one or more of the following sensors: a first flow sensor 44, a second flow sensor 102 provided on the feeding pipe 42 of the feeding mechanism 4, and a concentration detection sensor 25 provided on the mixing tank 2, the fertilizer outlet pipe 31 of the mixing tank 2, or the delivery pipe 34 of the spraying mechanism 3 connected to the mixing tank 2.

[0110] In embodiments of this disclosure and other possible embodiments, the controller 110 is provided with a communication component to facilitate wired or wireless communication between the output of the controller 110 and one or more of the following solenoid valves: the first solenoid valve 43 corresponding to the first flow sensor 44, the third solenoid valve 111 corresponding to the second flow sensor 102, and the second solenoid valve 32 corresponding to the concentration detection sensor 25.

[0111] In embodiments of this disclosure and other possible embodiments, the controller 110 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof, via a communication component. In one exemplary embodiment, the communication component receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component includes or is configured as a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0112] In the embodiments of this disclosure, the water-nitrogen coordinated automatic irrigation control system further includes: a fertilizer pump 33 connected to the controller 110; wherein the controller 110 is used to control the opening or closing of the fertilizer pump 33.

[0113] In embodiments of this disclosure, the controller 110 includes a processor 1101 and a memory 1102 connected to the processor 1101.

[0114] In embodiments of this disclosure, the processor 1101 is used to store the first preset flow rate; the processor 1101 is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 through the first solenoid valve 43 according to the first flow rate and the first preset flow rate.

[0115] In embodiments of this disclosure, the processor 1101 is used to store the second preset flow rate; the processor 1101 is used to control the opening or closing of the water channel connecting the water inlet pipeline and the mixing tank 2 through the third solenoid valve 111 according to the second flow rate and the second preset flow rate.

[0116] In embodiments of this disclosure, the processor 1101 is used to store the preset concentration; the processor 1101 is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe 34 through the first solenoid valve 43 according to the concentration and the preset concentration.

[0117] In the embodiments of this disclosure and other possible embodiments, if the first flow rate reaches the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to open through the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to close through the first solenoid valve 43.

[0118] In embodiments of this disclosure and other possible embodiments, the controller may include or have a comparator internally disposed therein; wherein the comparator is used to compare the first flow rate and the first preset flow rate; if the first flow rate reaches the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to open via the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the controller 110 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to close via the first solenoid valve 43.

[0119] In the embodiments of this disclosure and other possible embodiments, if the first flow rate reaches the first preset flow rate, the processor 1101 controls the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 to open through the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the processor 1101 controls the fertilizer flow channel connected to the feeding pipe 42 and the mixing tank 2 to close through the first solenoid valve 43.

[0120] In embodiments of this disclosure and other possible embodiments, the system further includes: a comparator or the controller includes or has a comparator internally configured; wherein the comparator is used to compare the first flow rate and the first preset flow rate; if the first flow rate reaches the first preset flow rate, the processor 1101 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to open via the first solenoid valve 43; if the first flow rate is less than the first preset flow rate, the processor 1101 controls the fertilizer flow channel connecting the feeding pipe 42 and the mixing tank 2 to close via the first solenoid valve 43.

[0121] In the embodiments of this disclosure and other possible embodiments, if the second flow rate reaches the second preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open through the third solenoid valve 111; if the first flow rate is less than the first preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close through the third solenoid valve 111.

[0122] In embodiments of this disclosure and other possible embodiments, the controller may include or have a comparator internally disposed therein; wherein the comparator is used to compare the second flow rate and the second preset flow rate; if the second flow rate reaches the second preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open via the third solenoid valve 111; if the first flow rate is less than the first preset flow rate, the controller 110 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close via the third solenoid valve 111.

[0123] In the embodiments of this disclosure and other possible embodiments, if the second flow rate reaches the second preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open through the third solenoid valve 111; if the first flow rate is less than the first preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close through the third solenoid valve 111.

[0124] In embodiments of this disclosure and other possible embodiments, the system further includes: a comparator or the controller includes or has a comparator internally configured; wherein the comparator is used to compare the second flow rate and the second preset flow rate; if the second flow rate reaches the second preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to open via the third solenoid valve 111; if the second flow rate is less than the second preset flow rate, the processor 1101 controls the water channel connecting the water inlet pipeline and the mixing tank 2 to close via the third solenoid valve 111.

[0125] In the embodiments of this disclosure and other possible embodiments, if the concentration reaches the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open through the first solenoid valve 43; if the concentration is less than the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close through the first solenoid valve 43.

[0126] In embodiments of this disclosure and other possible embodiments, the concentration detection sensor 25 may be configured as a water concentration sensor; wherein, the water concentration sensor is used to detect the water concentration corresponding to the fertilizer solution discharged from the mixing tank 2.

[0127] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the type of the concentration detection sensor 25 according to actual needs. For example, if the nitrogen concentration corresponding to the fertilizer solution discharged from the mixing tank 2 is being detected, the concentration detection sensor 25 can be configured as a nitrogen concentration detection sensor.

[0128] In embodiments of this disclosure and other possible embodiments, it further includes: a subtractor or a subtractor is provided in the controller 110; the subtractor subtracts the water concentration corresponding to the water concentration sensor from the set value 1 to obtain the concentration of the fertilizer solution discharged from the mixing tank 2.

[0129] In embodiments of this disclosure and other possible embodiments, the method further includes: a comparator or the controller includes or has a comparator internally disposed therein; wherein the comparator is used to compare the concentration with the preset concentration; if the concentration reaches the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open through the first solenoid valve 43; if the concentration is less than or greater than the preset concentration, the controller 110 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close through the first solenoid valve 43.

[0130] In the embodiments of this disclosure and other possible embodiments, if the concentration reaches the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open through the first solenoid valve 43; if the concentration is less than or greater than the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close through the first solenoid valve 43.

[0131] In embodiments of this disclosure and other possible embodiments, the system further includes: a comparator or the controller includes or has a comparator internally configured; wherein the comparator is used to compare the concentration with the preset concentration; if the concentration reaches the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to open via the first solenoid valve 43; if the concentration is less than or greater than the preset concentration, the processor 1101 controls the water-fertilizer solution flow channel in the delivery pipe 34 to close via the first solenoid valve 43.

[0132] In the embodiments of this disclosure and other possible embodiments, those skilled in the art can configure the first preset flow rate, the second preset flow rate, and the preset concentration according to actual needs.

[0133] In embodiments of this disclosure and other possible embodiments, the controller 110 or the processor 110 is also connected to the drive mechanism; wherein the controller 110 or the processor 110 is used to drive the stirring mechanism to stir the mixture of water and fertilizer in the mixing tank 2 via the drive mechanism.

[0134] In embodiments of this disclosure and other possible embodiments, the controller 110 or the processor 1101 is configured as a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a microcontroller, a microprocessor, or a single-chip microcomputer. For example, the controller 110 or the processor 1101 is configured as an STM32F0 single-chip microcomputer.

[0135] In embodiments of this disclosure and other possible embodiments, the memory 1102 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0136] In embodiments of this disclosure and other possible embodiments, an input mechanism connected to the controller 110 or the memory 1102 is further included; wherein the input mechanism is used to input one or more of the first preset flow rate, the second preset flow rate, and the preset concentration to the controller 110 or the memory 1102.

[0137] In embodiments of this disclosure and other possible embodiments, the input mechanism may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0138] The technical solution provided in this utility model embodiment includes: a support 1, a mixing tank 2, and a spraying mechanism 3; both the mixing tank 2 and the spraying mechanism 3 are installed on the support 1, and the spraying mechanism 3 is connected to the bottom of the mixing tank 2; the top of the mixing tank 2 is provided with a feeding mechanism 4 for accurately and quantitatively feeding nitrogen fertilizer, and the inside of the mixing tank 2 is provided with a mixing mechanism 5 for uniformly mixing nitrogen fertilizer and water.

[0139] In the embodiments of this disclosure and other possible embodiments, the support 1, the mixing tank 2 and the spraying mechanism 3 are arranged so that the support 1 serves as the basic load-bearing structure to ensure the stability of the irrigation equipment when it is operating in the field. The bottom of the mixing tank 2 is set with a conical bottom to facilitate the flow of the mixed liquid. The feeding component includes a storage tank 41, a feeding pipe 42, a first solenoid valve 43 and a first flow sensor 44. The bottom end of the feeding pipe 42 is connected to the top end of the mixing tank 2 and the top end is connected to the bottom of the storage tank 41. The first solenoid valve 43 and the first flow sensor 44 are both set inside the feeding pipe 42.

[0140] In the embodiments of this disclosure and other possible embodiments, the storage tank 41, the feeding pipe 42, the first solenoid valve 43, and the first flow sensor 44 are arranged such that the bottom of the storage tank 41 is also tapered, and the feeding pipe 42 is vertically connected to the top of the mixing tank 2, which can ensure that the nitrogen fertilizer falls smoothly into the mixing tank 2. The first solenoid valve 43 is a Burkert2000 electric ball valve, and the first flow sensor 44 can be an E+H-Promag-10W electromagnetic flow meter. The first flow sensor 44 in the feeding pipe 42 monitors the amount of nitrogen fertilizer added in real time and feeds back the flow signal to the controller. The controller adjusts the opening of the first solenoid valve 43 according to the preset fertilization parameters to accurately control the feeding flow and total amount of nitrogen fertilizer. When the flow reaches the set value, the first solenoid valve 43 closes quickly to cut off the material channel and achieve precise quantitative feeding. The first solenoid valve 43 and the first flow sensor 44 are both electrically connected to the controller, and the connection relationship is all prior art, which will not be described in detail here.

[0141] In the embodiments of this disclosure and other possible embodiments, it further includes: a support frame 6 fixedly installed on one side of the bracket 1, support plates 7 fixedly installed on both sides of the storage box 41, and both sets of support frames 6 fixedly installed on the top of the support frame 6.

[0142] In the embodiments of this disclosure and other possible embodiments, the support frame 6 adopts a triangular stable structure and is bolted to the bracket 1 by means of the support frame 6 and the support plate 7. The support plate 7 provides support for the storage box 41 by being fixed to the storage box 41.

[0143] In a further preferred embodiment, the mixing mechanism 5 includes: a motor 51, a rotating rod 52, a rotating frame 53, a first stirring plate 54, and a second stirring plate 55; the motor 51 is fixedly installed on the top of the mixing tank 2, and the output end of the motor 51 is fixedly connected to the top end of the rotating rod 52 through a coupling. The rotating rod 52 is rotatably installed inside the mixing tank 2. The rotating frame 53 is fixedly installed on the outside of the rotating rod 52, and multiple sets of first stirring plates 54 and second stirring plates 55 are fixedly installed on the outside of the rotating frame 53.

[0144] In the embodiments of this disclosure and other possible embodiments, through the arrangement of motor 51, rotating rod 52, rotating frame 53, first stirring plate 54 and second stirring plate 55, motor 51 can be selected as BAODE-WDJ series stainless steel anti-corrosion motor 51, and motor 51 is electrically connected to controller, and the connection relationship is existing technology, which will not be described in detail here. Motor 51 drives rotating rod 52 and rotating frame 53 to rotate synchronously. Rotating frame 53 adopts a rectangular frame structure to increase the fluid disturbance area. Multiple sets of first stirring plates 54 are provided to further improve the mixing efficiency of water and nitrogen fertilizer.

[0145] In the embodiments of this disclosure and other possible embodiments, the interior of the first stirring plate 54 and the second stirring plate 55 are provided with a plurality of first through holes 8, and the plurality of first through holes 8 are arranged in a rectangular array.

[0146] In the embodiments of this disclosure and other possible embodiments, the optimal turbulence effect is achieved by setting the first through hole 8 while ensuring structural strength. The arrangement of the rectangular array ensures that the liquid can obtain uniform shear force in both the radial and axial directions, thereby significantly improving the mixing efficiency.

[0147] In the embodiments of this disclosure and other possible embodiments, a connecting block is fixedly installed at the bottom end of the rotating rod 52, and two sets of third stirring plates 9 are fixedly installed on the outside of the connecting block, with the third stirring plates 9 being inclined.

[0148] In the embodiments of this disclosure and other possible embodiments, by setting the connecting block and the third stirring plate 9, the third stirring plate 9 is fixedly connected to the bottom end of the rotating rod 52 through the connecting block, which can stir the liquid at the bottom of the mixing tank 2, and the third stirring plate 9 is set at an inclination to avoid collision with the conical bottom of the mixing tank 2.

[0149] In the embodiments of this disclosure and other possible embodiments, the third stirring plate 9 has multiple sets of second through holes 10 inside, and the multiple sets of second through holes 10 are arranged in a rectangular array.

[0150] In the embodiments of this disclosure and other possible embodiments, the second through hole 10 can reduce the fluid resistance during stirring, allowing the material to pass through the third stirring plate 9 more smoothly during stirring, thereby enhancing the stirring efficiency.

[0151] In a further preferred embodiment, the spraying mechanism 3 includes a fertilizer outlet pipe 31, a second solenoid valve 32, a fertilizer pump 33, and a delivery pipe 34; the inlet pipe of the fertilizer pump 33 is connected to the bottom of the mixing tank 2 through the fertilizer outlet pipe 31, and the outlet end of the fertilizer pump 33 is connected to one end of the delivery pipe 34; the second solenoid valve 32 is disposed inside the fertilizer outlet pipe 31.

[0152] In the embodiments of this disclosure and other possible embodiments, through the arrangement of fertilizer outlet pipe 31, second solenoid valve 32, fertilizer pump 33 and delivery pipe 34, the second solenoid valve 32 can be a Burkert-6013 type direct-acting solenoid valve. The second solenoid valve 32 and fertilizer pump 33 are electrically connected to the controller, and the connection relationship is all prior art, which will not be described in detail here. The controller controls the second solenoid valve 32 and starts the fertilizer pump 33. The fertilizer pump 33 draws a uniformly mixed water-nitrogen solution from the bottom of the mixing tank 2 through the fertilizer outlet pipe 31, and uses the pressure generated by the pump body to deliver the liquid to the delivery pipe 34. The end of the delivery pipe 34 can be further extended to connect a diversion pipe and a nozzle according to the crop area, so that the mixed liquid can be applied to the crop area by spraying. The second solenoid valve 32 controls the flow rate and pressure of fertilizer outlet pipe 31 by adjusting the opening degree or the on / off state, and works with the working efficiency of fertilizer pump 33 to ensure that the delivery volume matches the needs of the irrigation area, thereby achieving precise and uniform spraying of water-fertilizer solution.

[0153] When this utility model is in use, the nitrogen fertilizer in the storage tank 41 enters the mixing tank 2 through the feeding pipe 42. The first flow sensor 44 in the feeding pipe 42 monitors the amount of nitrogen fertilizer added in real time and feeds back the flow signal to the controller. The controller adjusts the opening of the first solenoid valve 43 according to the preset fertilization parameters to accurately control the feeding flow and total amount of nitrogen fertilizer. When the flow reaches the set value, the first solenoid valve 43 closes quickly to cut off the material channel, realize precise quantitative feeding, and ensure that the amount of nitrogen fertilizer added each time meets the needs of the crop. At the same time, water is also injected into the mixing tank 2 through the feed pipe at the top of the mixing tank 2 according to the set ratio.

[0154] After feeding is completed, the motor 51 is started. The motor 51 drives the rotating rod 52 to drive the outer rotating frame 53 and multiple sets of first stirring plates 54 and second stirring plates 55 to rotate synchronously. At the same time, the inclined third stirring plate 9 on the bottom connecting block of the rotating rod 52 rotates accordingly. The rectangular array through holes set on the first stirring plate 54, second stirring plate 55 and third stirring plate 9 generate turbulence when rotating, which enhances the liquid shear force, so that the nitrogen fertilizer and water can fully contact and dissolve quickly, thereby achieving uniform mixing of water and nitrogen fertilizer.

[0155] After mixing is completed, the controller opens the second solenoid valve 32 and starts the fertilizer pump 33. The fertilizer pump 33 draws a uniformly mixed water-nitrogen solution from the bottom of the mixing tank 2 through the fertilizer outlet pipe 31. The pressure generated by the pump body is used to transport the liquid to the delivery pipe 34. The delivery pipe 34 can be connected to a branch pipe and a nozzle according to the crop area, so that the mixed solution can be applied to the crop area by spraying. The second solenoid valve 32 controls the flow and pressure of the fertilizer outlet pipe 31 by adjusting the opening degree or the on / off state. Combined with the working efficiency of the fertilizer pump 33, it ensures that the delivery volume matches the needs of the irrigation area, thereby achieving precise and uniform spraying of the water-fertilizer solution.

[0156] The spraying mechanism 3 is connected to the mixing tank 2 via a flange at the bottom outlet, ensuring reliable sealing and easy disassembly and maintenance. The feeding mechanism 4 can accurately and quantitatively dispense nitrogen fertilizer according to the crop's fertilizer requirements, effectively avoiding yield loss and seedling burn risk caused by insufficient or excessive fertilization. The mixing mechanism 5 can fully and evenly mix nitrogen fertilizer with water, so that the fertilizer exists in liquid form, improving nutrient activity. Combined with the spraying mechanism 3, it can accurately and evenly spray the evenly mixed water and nitrogen liquid onto the crops, solving the problem of uneven distribution of fertilizer when manually spreading it, and achieving efficient irrigation with water and nitrogen.

[0157] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A quantitative feeding device, comprising: The mixing tank (2) is characterized in that the mixing tank (2) is connected to the feeding mechanism (4), the mixing tank (2) is provided with a water inlet (24), and the mixing tank (2) is provided with a mixing mechanism (5) inside the mixing tank (2). The feeding mechanism (4) is used to feed fertilizer of a first preset flow rate into the mixing tank (2); the mixing mechanism (5) is used to stir water of a second preset flow rate and fertilizer of the first preset flow rate that enter the mixing tank (2) through the water inlet (24).

2. The quantitative feeding device according to claim 1, characterized in that, The feeding mechanism (4) includes: a storage tank (41), a feeding pipe (42) connected to the storage tank (41) and the mixing tank (2) respectively, a first solenoid valve (43) and a first flow sensor (44) provided on the feeding pipe (42). The first flow sensor (44) is used to detect the first flow rate of the fertilizer entering the mixing tank (2); the first solenoid valve (43) is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe (42) and the mixing tank (2).

3. The quantitative feeding device according to claim 2, characterized in that, The storage tank (41) is provided with an inlet (40) for the fertilizer to enter the storage tank (41).

4. The quantitative feeding device according to any one of claims 1-3, characterized in that, The inlet (24) is connected to the inlet pipeline, and a third solenoid valve (111) and a second flow sensor (102) are installed on the inlet pipeline. The second flow sensor (102) is used to detect the second flow rate of the water entering the mixing tank (2); the third solenoid valve (111) is used to control the opening or closing of the water channel connected to the water inlet pipeline and the mixing tank (2).

5. The quantitative feeding device according to any one of claims 2 or 3, characterized in that, Also includes: Controller (110); wherein the controller is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe (42) and the mixing tank (2) through the first solenoid valve (43) according to the first flow rate and the first preset flow rate.

6. The quantitative feeding device according to claim 5, characterized in that, The controller (110) includes: a processor (1101) and a memory (1102) connected to the processor (1101). The processor (1101) is used to store the first preset flow rate; the processor (1101) is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe (42) and the mixing tank (2) through the first solenoid valve (43) according to the first flow rate and the first preset flow rate.

7. The quantitative feeding device according to claim 4, characterized in that, Also includes: Controller (110); wherein the controller is used to control the opening or closing of the water channel connecting the water inlet pipeline and the mixing tank (2) through the third solenoid valve (111) according to the second flow rate and the second preset flow rate.

8. The quantitative feeding device according to claim 7, characterized in that, The controller (110) includes: a processor (1101) and a memory (1102) connected to the processor (1101). The processor (1101) is used to store the second preset flow rate; the processor (1101) is used to control the opening or closing of the water channel connecting the water inlet pipeline and the mixing tank (2) through the third solenoid valve (111) according to the second flow rate and the second preset flow rate.

9. The quantitative feeding device according to any one of claims 1-3 and 6-8, characterized in that, The mixing mechanism (5) includes: a driving mechanism and a stirring mechanism connected to the driving mechanism; The driving mechanism is used to drive the stirring mechanism to stir the mixture of water and fertilizer in the mixing tank (2).

10. The quantitative feeding device according to claim 4, characterized in that, The mixing mechanism (5) includes: a driving mechanism and a stirring mechanism connected to the driving mechanism; The driving mechanism is used to drive the stirring mechanism to stir the mixture of water and fertilizer in the mixing tank (2).

11. The quantitative feeding device according to claim 5, characterized in that, The mixing mechanism (5) includes: a driving mechanism and a stirring mechanism connected to the driving mechanism; The driving mechanism is used to drive the stirring mechanism to stir the mixture of water and fertilizer in the mixing tank (2).

12. The quantitative feeding device according to claim 9, characterized in that, The stirring mechanism includes: a rotating rod (52) connected to the driving mechanism, a rotating frame (53) connected to the rotating rod (52), and a stirring plate connected to the rotating frame (53).

13. The quantitative feeding device according to any one of claims 10 or 11, characterized in that, The stirring mechanism includes: a rotating rod (52) connected to the driving mechanism, a rotating frame (53) connected to the rotating rod (52), and a stirring plate connected to the rotating frame (53).

14. The quantitative feeding device according to claim 12, characterized in that, The rotating frame (53) includes a first driven rotary joint (531) and a second driven rotary joint (532) respectively connected to both sides of the rotating rod (52); a plurality of first stirring plates (54) and a plurality of second stirring plates (55) are respectively provided on both sides of the first driven rotary joint (531) and the second driven rotary joint (532).

15. The quantitative feeding device according to claim 13, characterized in that, The rotating frame (53) includes a first driven rotary joint (531) and a second driven rotary joint (532) respectively connected to both sides of the rotating rod (52); a plurality of first stirring plates (54) and a plurality of second stirring plates (55) are respectively provided on both sides of the first driven rotary joint (531) and the second driven rotary joint (532).

16. The quantitative feeding device according to any one of claims 14 or 15, characterized in that, The rotating rod (52) is also provided with a first connecting sleeve (521) for connecting one end of the first driven rotary joint (531) and one end of the second driven rotary joint (532) and a second connecting sleeve (522) for connecting the other end of the first driven rotary joint (531) and the other end of the second driven rotary joint (532).

17. The quantitative feeding device according to any one of claims 14 or 15, characterized in that, Each of the plurality of first stirring plates (54) and the plurality of second stirring plates (55) is provided with a first through hole (8).

18. The quantitative feeding device according to claim 16, characterized in that, Each of the plurality of first stirring plates (54) and the plurality of second stirring plates (55) is provided with a first through hole (8).

19. The quantitative feeding device according to any one of claims 12, 14, 15, and 18, characterized in that, The rotating rod (52) is also provided with a third connecting sleeve (523) at its end inside the mixing tank (2) for connecting multiple third stirring plates (9).

20. The quantitative feeding device according to claim 13, characterized in that, The rotating rod (52) is also provided with a third connecting sleeve (523) at its end inside the mixing tank (2) for connecting multiple third stirring plates (9).

21. The quantitative feeding device according to claim 16, characterized in that, The rotating rod (52) is also provided with a third connecting sleeve (523) at its end inside the mixing tank (2) for connecting multiple third stirring plates (9).

22. The quantitative feeding device according to claim 17, characterized in that, The rotating rod (52) is also provided with a third connecting sleeve (523) at its end inside the mixing tank (2) for connecting multiple third stirring plates (9).

23. The quantitative feeding device according to claim 19, characterized in that, The plurality of third stirring plates (9) are provided with second through holes (10).

24. The quantitative feeding device according to any one of claims 20-22, characterized in that, The plurality of third stirring plates (9) are provided with second through holes (10).

25. The quantitative feeding device according to any one of claims 1-3, 6-8, 10-12, 14, 15, 18, 20-23, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

26. The quantitative feeding device according to claim 4, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

27. The quantitative feeding device according to claim 5, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

28. The quantitative feeding device according to claim 9, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

29. The quantitative feeding device according to claim 13, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

30. The quantitative feeding device according to claim 16, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

31. The quantitative feeding device according to claim 17, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

32. The quantitative feeding device according to claim 19, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

33. The quantitative feeding device according to claim 24, characterized in that, Also includes: A bracket (1) for placing the mixing tank (2).

34. The quantitative feeding device according to claim 25, characterized in that, The bracket (1) includes: a horizontal plate (11) for placing the mixing tank (2) and a vertical plate (12) connected to the horizontal plate (11); one end of the vertical plate (12) is connected to the horizontal plate (11), and the other end of the vertical plate (12) is connected to a support frame (6) for supporting the feeding mechanism (4).

35. The quantitative feeding device according to any one of claims 26-33, characterized in that, The bracket (1) includes: a horizontal plate (11) for placing the mixing tank (2) and a vertical plate (12) connected to the horizontal plate (11); one end of the vertical plate (12) is connected to the horizontal plate (11), and the other end of the vertical plate (12) is connected to a support frame (6) for supporting the feeding mechanism (4).

36. The quantitative feeding device according to claim 34, characterized in that, The feeding pipe (42) of the feeding mechanism (4) passes through the support frame (6) and is connected to the mixing tank (2).

37. The quantitative feeding device according to claim 35, characterized in that, The feeding pipe (42) of the feeding mechanism (4) passes through the support frame (6) and is connected to the mixing tank (2).

38. The quantitative feeding device according to any one of claims 1-3, 6-8, 10-12, 14, 15, 18, 20-23, 26-34, 36, and 37, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

39. The quantitative feeding device according to claim 4, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

40. The quantitative feeding device according to claim 5, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

41. The quantitative feeding device according to claim 9, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

42. The quantitative feeding device according to claim 13, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

43. The quantitative feeding device according to claim 13, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

44. The quantitative feeding device according to claim 16, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

45. The quantitative feeding device according to claim 17, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

46. ​​The quantitative feeding device according to claim 19, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

47. The quantitative feeding device according to claim 24, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

48. The quantitative feeding device according to claim 25, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

49. The quantitative feeding device according to claim 35, characterized in that, A mixing platform (21) is provided on one side of the mixing tank (2); a mixing platform support (22) is provided on one side of the mixing platform (21).

50. The quantitative feeding device according to any one of claims 1-3, 6-8, 10-12, 14, 15, 18, 20-23, 26-34, 36, 37, 39-49, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

51. The quantitative feeding device according to claim 4, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

52. The quantitative feeding device according to claim 5, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

53. The quantitative feeding device according to claim 9, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

54. The quantitative feeding device according to claim 13, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

55. The quantitative feeding device according to claim 16, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

56. The quantitative feeding device according to claim 17, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

57. The quantitative feeding device according to claim 19, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

58. The quantitative feeding device according to claim 24, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

59. The quantitative feeding device according to claim 25, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

60. The quantitative feeding device according to claim 35, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

61. The quantitative feeding device according to claim 38, characterized in that, Also includes: A spraying mechanism (3) connected to the mixing tank (2).

62. The quantitative feeding device according to claim 50, characterized in that, The spraying mechanism (3) includes a delivery pipe (34) connected to the fertilizer outlet pipe (31) of the mixing tank (2).

63. The quantitative feeding device according to any one of claims 51-61, characterized in that, The spraying mechanism (3) includes a delivery pipe (34) connected to the fertilizer outlet pipe (31) of the mixing tank (2).

64. The quantitative feeding device according to claim 62, characterized in that, The spraying mechanism (3) further includes: a concentration detection sensor (25) installed on the fertilizer outlet pipe (31) of the mixing tank (2) or the delivery pipe (34) of the mixing tank (2) and a first solenoid valve (43) installed on the delivery pipe (34). The concentration detection sensor (25) is used to detect the concentration of the fertilizer solution discharged from the mixing tank (2); the first solenoid valve (43) is used to control the opening or closing of the fertilizer solution flow channel in the delivery pipe (34).

65. The quantitative feeding device according to claim 63, characterized in that, The spraying mechanism (3) further includes: a concentration detection sensor (25) installed on the fertilizer outlet pipe (31) of the mixing tank (2) or the delivery pipe (34) of the mixing tank (2) and a first solenoid valve (43) installed on the delivery pipe (34). The concentration detection sensor (25) is used to detect the concentration of the fertilizer solution discharged from the mixing tank (2); the first solenoid valve (43) is used to control the opening or closing of the fertilizer solution flow channel in the delivery pipe (34).

66. The quantitative feeding device according to any one of claims 62, 64, or 65, characterized in that, The spraying mechanism (3) further includes a fertilizer pump (33) installed in the delivery pipe (34); wherein the fertilizer pump (33) is used to provide drainage power for the water-fertilizer solution in the delivery pipe (34).

67. The quantitative feeding device according to claim 63, characterized in that, The spraying mechanism (3) further includes a fertilizer pump (33) installed in the delivery pipe (34); wherein the fertilizer pump (33) is used to provide drainage power for the water-fertilizer solution in the delivery pipe (34).

68. The quantitative feeding device according to any one of claims 62, 64, 65, or 67, characterized in that, Also includes: Controller (110); wherein the controller is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe (34) through the first solenoid valve (43) according to the concentration detected by the concentration detection sensor (25) and the preset concentration.

69. The quantitative feeding device according to claim 63, characterized in that, Also includes: Controller (110); wherein the controller is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe (34) through the first solenoid valve (43) according to the concentration detected by the concentration detection sensor (25) and the preset concentration.

70. The quantitative feeding device according to claim 66, characterized in that, Also includes: Controller (110); wherein the controller is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe (34) through the first solenoid valve (43) according to the concentration detected by the concentration detection sensor (25) and the preset concentration.

71. The quantitative feeding device according to claim 68, characterized in that, The controller (110) includes a processor (1101) and a memory (1102) connected to the processor (1101); wherein the processor (1101) is used to store the preset concentration; the processor (1101) is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe (34) through the first solenoid valve (43) according to the concentration and the preset concentration.

72. The quantitative feeding device according to any one of claims 69 or 70, characterized in that, The controller (110) includes a processor (1101) and a memory (1102) connected to the processor (1101); wherein the processor (1101) is used to store the preset concentration; the processor (1101) is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe (34) through the first solenoid valve (43) according to the concentration and the preset concentration.

73. A water-nitrogen coordinated automatic irrigation control system, characterized in that, include: The quantitative feeding device as described in any one of claims 1-72; and, Controller (110); The input terminal of the controller (110) is connected to at least one or more of the following sensors: a first flow sensor (44), a second flow sensor (102) installed on the feeding pipe (42) of the feeding mechanism (4), and a concentration detection sensor (25) installed on the mixing tank (2) or the fertilizer outlet pipe (31) of the mixing tank (2) or the delivery pipe (34) of the spraying mechanism (3) connected to the mixing tank (2); wherein the fertilizer is configured as nitrogen fertilizer. The output of the controller (110) is connected to at least one or more of the following solenoid valves: the first solenoid valve (43) corresponding to the first flow sensor (44), the third solenoid valve (111) corresponding to the second flow sensor (102), and the second solenoid valve (32) corresponding to the concentration detection sensor (25). The controller (110) is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe (42) and the mixing tank (2) through the first solenoid valve (43) based on the first flow rate detected by the first flow sensor (44) and the first preset flow rate. The controller (110) is used to control the opening or closing of the water channel connected to the mixing tank (2) by the third solenoid valve (111) according to the second flow rate detected by the second flow sensor (102) and the second preset flow rate. The controller (110) is used to control the opening or closing of the water and fertilizer solution flow channel in the delivery pipe (34) of the spraying mechanism (3) connected to the mixing tank (2) through the first solenoid valve (43) according to the concentration of the water and fertilizer solution detected by the concentration detection sensor (25) and the preset concentration.

74. The water-nitrogen coordinated automatic irrigation control system according to claim 73, characterized in that, Also includes: Fertilizer pump (33) connected to the controller (110); The controller (110) is used to control the opening or closing of the fertilizer pump (33).

75. The water-nitrogen coordinated automatic irrigation control system according to any one of claims 73 or 74, characterized in that, The controller (110) includes: a processor (1101) and a memory (1102) connected to the processor (1101). The processor (1101) is used to store the first preset flow rate; the processor (1101) is used to control the opening or closing of the fertilizer flow channel connected to the feeding pipe (42) and the mixing tank (2) through the first solenoid valve (43) according to the first flow rate and the first preset flow rate.

76. The water-nitrogen coordinated automatic irrigation control system according to any one of claims 73 or 74, characterized in that, The controller (110) includes: a processor (1101) and a memory (1102) connected to the processor (1101). The processor (1101) is used to store the second preset flow rate; the processor (1101) is used to control the opening or closing of the water channel connecting the water inlet pipeline and the mixing tank (2) through the third solenoid valve (111) according to the second flow rate and the second preset flow rate.

77. The water-nitrogen coordinated automatic irrigation control system according to any one of claims 73 or 74, characterized in that, The controller (110) includes: a processor (1101) and a memory (1102) connected to the processor (1101). The processor (1101) is used to store the preset concentration; the processor (1101) is used to control the opening or closing of the water-fertilizer solution flow channel in the delivery pipe (34) through the first solenoid valve (43) according to the concentration and the preset concentration.

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