A smart agricultural fertilizer mixing sprinkler irrigation system

Abstract

The present invention discloses a smart agricultural fertilizer mixing sprinkler irrigation system, which belongs to the technical field of agricultural irrigation and fertilization, including a fertilizer bin and a clean water pumping device connected thereto, wherein the clean water pumping device includes a cylinder body with a cylindrical cavity inside, and an impeller component coaxially installed in the cylinder body, and the two opposite sides of the cylinder body are respectively provided with a water inlet pipeline and a water outlet pipeline, when the impeller component rotates, clean water enters the cylinder body from the water inlet pipeline, and is transported to the water outlet pipeline by the impeller component and thrown out; a plurality of fertilizer bins are provided above the cylinder body, and when the impeller component rotates, the fertilizer bins are intermittently opened one by one, so that the fertilizer falls into the clean water in the cylinder body and is mixed. The smart agricultural fertilizer mixing sprinkler irrigation system of the present invention can realize the instant use of fertilizers with clean water irrigation, ensure the uniformity and consistency of mixing, and automatically add quantitatively throughout the process, which is efficient and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural irrigation and fertilization, and in particular to an intelligent agricultural fertilizer mixing sprinkler irrigation system. Background Art

[0002] Smart agriculture is a modern agricultural method that applies advanced technologies and concepts. It plays an important role in improving agricultural production efficiency, improving agricultural production environment, ensuring agricultural product quality, and improving agricultural sustainability through intelligent equipment and systems. Agricultural production based on modern information intelligence technology and combined with automated hardware facilities is its representative means. As the irrigation and fertilization link in smart agriculture, it adopts cutting-edge crop production trends and their regulation laws to add and spread fertilizers. When mixing fertilizers and clean water, although it uses automatic mixing, it needs to manually weigh and control the ratio of fertilizers and clean water. Moreover, during mixing, in order to achieve continuous sprinkler irrigation, a large amount of fertilizer mixture must be prepared at one time. After a long period of sprinkler irrigation, the mixture in the tank is prone to sedimentation, resulting in uneven spraying of fertilizers, affecting the effect of fertilization and sprinkler irrigation. If only a small amount of fertilizer that can be used up in time is configured at one time, it will need to be weighed and mixed multiple times, which will require too much manual labor. In fact, for many fertilizers, accurate weighing is not necessary, which is too time-consuming and labor-intensive. However, in contemporary smart agricultural production, efficiency and convenience are one of the core concepts. Therefore, the existing fertilizer mixing sprinkler operation method needs to be improved urgently. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides an intelligent agricultural fertilizer mixing sprinkler irrigation system, which solves the problems in the prior art that, when mixing fertilizers for sprinkler irrigation operations, the mixed liquid of fertilizer and clean water cannot be prepared and used immediately, making it difficult to ensure uniformity, and the adding and mixing of fertilizers are not efficient and convenient enough.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a smart agricultural fertilizer mixing sprinkler irrigation system, comprising a fertilizer bin and a clean water pumping device connected thereto, the clean water pumping device comprising a cylinder body having a cylindrical cavity inside, and an impeller component coaxially installed in the cylinder body, and a water inlet pipeline and a water outlet pipeline are respectively provided on two opposite sides of the cylinder body, when the impeller component rotates, clean water enters the cylinder body from the water inlet pipeline, and is transported by the impeller component to the water outlet pipeline and thrown out;

[0005] A plurality of fertilizer bins are arranged above the cylinder body. When the impeller component rotates, the fertilizer bins are intermittently opened one by one, so that the fertilizer falls into the clean water in the cylinder body and is mixed.

[0006] Furthermore, the impeller component includes a cylindrical core body, around which a plurality of wheel plates are fixed in a circular array, at least part of the edge of the wheel plate is in dynamic sealing contact with the inner wall of the cylindrical cavity, and when the impeller component rotates, clean water between two adjacent wheel plates is transported out as they rotate together.

[0007] Furthermore, a fan-shaped thin plate is provided at the upper part between two adjacent wheel plates, and the fan-shaped thin plate is radially slidably installed in the top end surface of the core body through a connecting rod, and the connecting rod can synchronously telescope and move along the radial direction of the core body; when the impeller component rotates, the fan-shaped thin plate pushes open the control valve at the bottom of the fertilizer bin, so that the fertilizer falls into the area between the two wheel plates where the fan-shaped thin plate is located.

[0008] Further, the control valve comprises a conical plug installed in a discharge hole at the bottom of the fertilizer bin, wherein the discharge hole is coaxially aligned with a feed hole provided on the cylinder body;

[0009] The top end of the conical plug is elastically and telescopically installed in the fertilizer bin through a sliding column and a pressure spring, and its bottom end is connected to a vertical rod. The vertical rod is vertically installed in the discharge hole and its diameter is smaller than the diameter of the discharge hole. After the bottom end of the vertical rod is extended into the feed hole, it is fixed as a whole with a horizontal rod arranged horizontally. The horizontal rod is arranged along a groove opened on the inner top surface of the cylinder body, and a vertically installed trigger pin is fixed at one end of the horizontal rod close to the closed end of the groove. The bottom end of the trigger pin extends out of the inner top surface of the cylinder body so as to contact the fan-shaped thin plate. The fan-shaped thin plate pushes up the horizontal rod through the trigger pin, thereby separating the conical plug from the discharge hole.

[0010] Furthermore, one side of the fan-shaped thin plate is a blade-like structure, so that the trigger pin can slide smoothly onto the surface of the fan-shaped thin plate.

[0011] Furthermore, a notch is provided on the top side of each wheel plate, a partition is hinged in each notch, one side of the partition is connected with an elastic spring, the spring is installed in the notch, and the partition is in a position parallel to the surface of the wheel plate in a free state; the spring is in an L-shaped structure, the vertical section of which is an isosceles trapezoidal structure, and the horizontal section of which is a flat plate structure, the inner angle at the intersection of the isosceles trapezoidal structure and the flat plate structure has a rounded angle with an arc greater than 180 degrees, and the inclined surface of the isosceles trapezoidal structure is arranged to face away from the partition; the bottom end surface of the partition is an arc surface, so that when the partition rotates within a certain angle, the bottom of the partition maintains a sealed contact with the bottom surface of the notch;

[0012] The position of the notch must ensure that: when the impeller component rotates, the trigger pin just presses against the partition and passes through the notch, and the trigger pin cannot move up at this time because it is insufficient to overcome the elastic force of the pressure spring, and the cone plug maintains the seal of the discharge hole.

[0013] Furthermore, the connecting rod is slidably mounted on the top end surface of the core body, and slidably penetrates an integrally formed shaft ring on the top end surface of the core body, and the surface of the part extending into the shaft ring is provided with a flat thread; the shaft ring is rotatably mounted on the inner top surface of the cylinder body, and a screw disk is rotatably mounted in the shaft ring, and the surface of the screw disk has a flat thread that cooperates with the sliding rod thread, so that when the screw disk rotates, all the connecting rods and their fan-shaped thin plates can move radially along the core body.

[0014] Furthermore, a rotating shaft is vertically fixed at the center of the screw disk, and a driven gear is fixed to the end of the rotating shaft extending out of the cylinder body, and the driven gear is transmission-connected to the motor.

[0015] Furthermore, the motor is a stepper motor, which is connected to a controller. The controller can adjust the rotation angle of the motor so that all the fan-shaped thin plates move to a specified position along the radial direction of the core body, thereby setting the path length for the fan-shaped thin plates to maintain contact with the trigger pin, setting the duration of the discharge hole, and determining the amount of fertilizer released.

[0016] Furthermore, each of the fertilizer bins is connected to a corresponding fertilizer storage tank to add corresponding fertilizers into the fertilizer bin, and each fertilizer bin is provided with a number corresponding to a type of fertilizer; the bottom end of each fertilizer bin is connected to the cylinder body through a vertically arranged extension pipe section so that the clean water between the two wheel plates in the cylinder body will not splash directly into the fertilizer bin.

[0017] The invention provides a smart agricultural fertilizer mixing sprinkler irrigation system, which has the following beneficial effects: the core principle of the invention is that the addition of fertilizers and the delivery of clean water are both automatic and quantitative, and the whole process is a dynamic cycle process operation, which is convenient and efficient, and can be used in small quantities multiple times.

[0018] 1. Only a small amount of fertilizer is quantitatively mixed at a time, and there is no need to weigh it manually every time. When the mixing bin formed between the two wheel plates moves to the bottom of the predetermined fertilizer bin, it touches the control valve or the trigger pin, opens the control valve or the cone plug, and the fertilizer automatically falls from the discharge hole into the mixing bin. With the further rotation and oscillation of the mixing bin, it is dissolved and mixed in the clean water. The amount of clean water and the amount of fertilizer that falls are automatically generated without manual weighing. Moreover, by changing the position of the fan-shaped thin plate, the fertilizer falling time can be automatically changed, thereby realizing the setting of the fertilizer addition amount. It is especially suitable for agricultural additives such as fertilizers that do not require precise quantitative addition.

[0019] 2. When multiple fertilizer bins are set up, multiple fertilizers can be added in sequence, and the intervals between fertilizer additions can be distinguished when necessary. When there are many types of fertilizers, a stirring tank can be added to the outlet pipe for deep mixing to ensure that the uniformity meets the requirements. Of course, for work occasions where interval addition is not required, the outlet holes of all fertilizer bins can be set together and concentrated in one place, so that all fertilizers can be added continuously and concentratedly, so that the fertilizer has a longer rotation, oscillation and mixing stroke.

[0020] 3. This smart agricultural fertilizer mixing sprinkler irrigation system can be directly installed on some remote sensing communication equipment, such as modern intelligent equipment such as vehicles and drones, to give full play to its performance advantages of automatic and continuous mixing and spraying as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic cross-sectional top view of the present invention;

[0022] Figure 2 A longitudinal cross-sectional schematic diagram of the present invention;

[0023] Figure 3 A schematic diagram of a connection structure between a fertilizer bin and a cylinder body;

[0024] Figure 4 A schematic diagram of a fan-shaped thin plate viewed from above;

[0025] Figure 5 for Figure 1 A partial cross-sectional view along the A-A direction;

[0026] Figure 6 for Figure 1 Enlarged structural diagram at the middle Q;

[0027] Figure 7 for Figure 6 B-B section view in.

[0028] In the figure: cylinder body 1, fertilizer bin 2, wheel plate 3, fan-shaped thin plate 4, connecting rod 5, water inlet pipe 6, water outlet pipe 7, core 8, shaft collar 9, screw disk 10, rotating shaft 11, cone plug 12, slide rod 13, pressure spring 14, vertical rod 15, horizontal rod 16, trigger pin 17, groove 18, extension pipe section 19, discharge hole 20, partition 21, reed 22, notch 23, driven gear 24. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1 The shown intelligent agricultural fertilizer mixing sprinkler irrigation system has a main structure including a fertilizer bin 2 and a clean water pumping device connected thereto. The clean water pumping device includes a cylinder 1 with a cylindrical cavity inside, and an impeller component coaxially installed in the cylinder 1. The two opposite sides of the cylinder 1 are respectively provided with an inlet pipe 6 and an outlet pipe 7, and a nozzle (not shown in the figure) is installed on the outlet pipe 7. The inlet pipe 6 and the outlet pipe 7 are used for water inlet and outlet. When the impeller component rotates, the clean water enters the cylinder 1 from the inlet pipe 6, and is transported to the outlet pipe 7 by the impeller component and thrown out. At the same time, a number of fertilizer bins 2 are also provided above the cylinder 1. When the impeller component rotates, the corresponding fertilizer bins 2 are intermittently opened one by one, so that the fertilizer falls into the clean water in the cylinder 1 and mixes, so as to realize the orderly, quantitative addition and mixing of fertilizer and clean water, and finally pump and spray it out from the outlet pipe 7.

[0031] Continue reading Figure 1 as well as Figure 2 The impeller component in this embodiment includes a cylindrical core body 8, around which a plurality of wheel plates 3 are fixed in a circular array. The wheel plates 3 may be rectangular plates, and at least a portion of the edge of the wheel plates 3 is in dynamic sealing contact with the inner wall of the cylindrical cavity. When the impeller component rotates, the clean water between two adjacent wheel plates 3 rotates together, and is thereby transported out from the water outlet pipe 7.

[0032] like Figure 2 As shown, a fan-shaped thin plate 4 is provided at the upper part between two adjacent wheel plates 3, and the top surface of the fan-shaped thin plate 4 is preferably flush with the top surface of the wheel plate 3, or slightly higher than the wheel plate 3 by more than 1 mm. Specifically, these fan-shaped thin plates 4 are radially slidably installed in the top surface of the core 8 through the connecting rod 5, and the connecting rod 5 can synchronously telescope along the radial direction of the core 8; when the impeller component rotates, the fan-shaped thin plate 4 pushes open the control valve at the bottom of the fertilizer bin 2, so that the fertilizer falls into the area between the two wheel plates 3 where the fan-shaped thin plate 4 is located, so as to realize the addition of the corresponding type of fertilizer, and the stirring and mixing during the rotation. When the amount is large or the rotation speed is too fast to mix evenly, an additional stirring tank (not shown in the figure) can be set on the water outlet pipeline 7 to perform the final stirring and then spray it out through the nozzle.

[0033] For the above control valve results, such as Figure 3As shown, the production may include a cone plug 12 installed in the discharge hole 20 at the bottom of the fertilizer bin 2, the discharge hole 20 is coaxially aligned with the feed hole opened on the cylinder body 1, the top of the cone plug 12 is elastically and telescopically installed in the fertilizer bin 2 through a slide column and a pressure spring 14, and a vertical rod 15 is connected to its bottom end, the vertical rod 15 is vertically installed in the discharge hole 20 and its diameter is smaller than the diameter of the discharge hole 20, after the bottom end of the vertical rod 15 extends into the feed hole, it is fixed as a whole with a horizontal rod 16 arranged horizontally, and the horizontal rod 16 is arranged along A groove 18 is provided on the inner top surface of the cylinder body 1, and a vertically mounted trigger pin 17 is fixedly connected to one end of the horizontal rod 16 near the closed end of the groove 18. The bottom end surface of the trigger pin 17 is preferably hemispherical to facilitate smooth contact. At the same time, in the present embodiment, the bottom end of the trigger pin 17 extends downward beyond the inner top surface of the cylinder body 1 so that it can contact the fan-shaped thin plate 4 that has been rotated into place. The fan-shaped thin plate 4 pushes up the horizontal rod 16 through the trigger pin 17, so that the cone plug 12 moves upward, thereby separating the cone plug 12 from the discharge hole 20. In the above structural design, a key point is the integrated Z-shaped structure formed between the vertical rod 15, the horizontal rod 16, and the trigger pin 17. The reason why it is designed in a Z shape here is mainly because the fan-shaped plate itself has a certain area. When it contacts the trigger pin 17 and opens the discharge hole 20, it will block the falling fertilizer, resulting in ineffective fertilizer addition. Therefore, this discharge hole 20 is designed outside the fan-shaped thin plate 4, and then the above-mentioned Z-shaped rod structure is used to realize the pushing of the cone plug 12, which is conducive to the fertilizer falling directly into the corresponding two wheel plates 3 in the cylinder body 1.

[0034] In order to facilitate the sliding cooperation between the trigger pin 17 and the fan-shaped thin plate 4, as shown in FIG. Figure 4 As shown, one side of the fan-shaped thin plate 4 is a blade-like structure, that is, the side that first contacts the trigger pin 17 is a blade-like structure, so that the trigger pin 17 can slide onto the surface of the fan-shaped thin plate 4 smoothly.

[0035] During manufacturing, the top surface of the wheel plate 3 may be prevented from contacting the top surface of the cylinder body 1 under the premise of controlling the water inflow, and the water may not overflow the top of the wheel plate 3, while the position of the fan-shaped thin plate 4 is higher than the wheel plate 3, so that the trigger pin 17 can only contact the fan-shaped thin plate 4, thereby having a structure that only opens the control valve. In addition, the top surface of the partition plate 21 may contact the inner wall of the cylinder body 1, and the top surface of the fan-shaped thin plate 4 may be coplanar with the top surface of the wheel plate 3, as shown in the following example. Figure 1 and Figure 6-7As shown, during the manufacturing process, a notch 23 is also provided on the top side of each wheel plate 3. For example, the notch 23 is rectangular. A partition 21 is hinged in each notch 23. An elastic spring 22 is connected to one side of the partition 21. The spring 22 is installed in the notch 23, and the partition 21 is in a position parallel to the surface of the wheel plate 3 in a free state. At the same time, the spring 22 is an L-shaped structure, the vertical section of which is an isosceles trapezoidal structure, and the horizontal section is a flat plate structure. The inner angle at the intersection of the isosceles trapezoidal structure and the flat plate structure has a rounded angle with an arc greater than 180 degrees. The inclined surface of the isosceles trapezoidal structure is arranged to face away from the partition 21 so as to be elastically twisted and deflected by a certain amplitude toward the side away from the partition 21. It is best that the bottom end surface of the partition 21 is an arc surface, so that when the partition 21 rotates within a certain angle, the bottom of the partition 21 and the notch are aligned. The bottom surfaces of the impeller plate 3 and the impeller 4 are kept in sealed contact, that is, when the trigger pin 17 passes over the fan-shaped thin plate 4, although it is flush with the top surface of the partition 21 and the top surface of the fan-shaped thin plate 4, due to the extrusion effect, when it approaches the top surface of the wheel plate 3, it is in contact with the top surface of the partition 21, and the partition 21 itself can swing adaptively in the corresponding direction, resulting in the trigger pin 17 not being able to move up, so that when the trigger pin 17 passes over the wheel plate 3, it will not cause the above-mentioned discharge hole 20 to be opened, which is very clever. That is, when making, the position of this notch 23 must be such that when the impeller component rotates, the trigger pin 17 just presses the partition 21 and passes through the notch 23, and the trigger pin 17 cannot move up at this time because it is not enough to overcome the elastic force of the pressure spring 14, and the cone plug 12 keeps the discharge hole 20 sealed.

[0036] In order to drive all the fan-shaped thin plates 4, as Figure 5 As shown, the connecting rod 5 is slidably mounted on the top surface of the core body 8, and slidably penetrates a shaft ring 9 integrally formed on the top surface of the core body 8, and the surface of the portion extending into the shaft ring 9 is provided with a flat thread; the shaft ring 9 is rotatably mounted on the inner top surface of the cylinder body 1, and a screw disk 10 is rotatably mounted in the shaft ring 9, and the surface of the screw disk 10 has a flat thread that cooperates with the thread of the slide rod 13, so that when the screw disk 10 rotates, all the connecting rods 5 and their fan-shaped thin plates 4 are telescopically moved along the radial direction of the core body 8 to achieve adjustment of the fan-shaped thin plates 4. In actual use, based on routine irrigation after a certain type of fertilizer is mixed with water, the diameters of the discharge holes 20 of each fertilizer bin 2 can be set in advance, and do not need to be exactly the same, so that when adjusted, the corresponding increase or decrease in the corresponding fertilizer discharge can also be obtained.

[0037] In production, such as Figure 5In this embodiment, a rotating shaft 11 is vertically fixed to the center of the screw disc 10, and a driven gear 24 is fixed to the end of the rotating shaft 11 extending out of the cylinder body 1, and the driven gear 24 is connected to the motor. The motor can be a stepping motor, and the motor is connected to the controller. The controller can adjust the motor rotation angle so that all the fan-shaped thin plates 4 move to the specified position along the radial direction of the core 8, thereby setting the path length of the fan-shaped thin plates 4 and the trigger pin 17 to maintain contact, so as to set the opening time of the discharge hole 20 and determine the amount of fertilizer released, which is very intelligent.

[0038] As another implementation detail, each fertilizer bin 2 is connected to a corresponding fertilizer storage tank to add corresponding fertilizers into the fertilizer bin 2. Each fertilizer bin 2 is provided with a number corresponding to a type of fertilizer. The bottom end of each fertilizer bin 2 is connected to the cylinder body 1 via a vertically arranged extension pipe section 19. Because the extension pipe section 19 is long enough, the clean water between the two wheel plates 3 in the cylinder body 1 will not splash directly into the fertilizer bin 2 as much as possible.

[0039] Finally, the smart agricultural fertilizer mixing sprinkler system in the above embodiment, combined with modern information control technology, can be adaptively installed directly on remote-controlled vehicles, drones and other carriers to facilitate flexible control and improve work efficiency, further demonstrating the intelligent operation of modern agricultural production.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart agricultural fertilizer mixing sprinkler irrigation system, comprising a fertilizer bin (2) and a clean water pumping device connected thereto, characterized in that: The clean water pumping device comprises a cylinder body (1) having a cylindrical cavity therein, and an impeller component coaxially mounted in the cylinder body (1); a water inlet pipeline (6) and a water outlet pipeline (7) are respectively provided on two opposite sides of the cylinder body (1); when the impeller component rotates, clean water enters the cylinder body (1) from the water inlet pipeline (6), is transported by the impeller component to the water outlet pipeline (7), and is thrown out; A plurality of fertilizer bins (2) are provided above the cylinder body (1), and when the impeller component rotates, the fertilizer bins (2) are intermittently opened one by one, so that the fertilizer falls into the clean water in the cylinder body (1) and is mixed; The impeller component comprises a cylindrical core (8), and a plurality of wheel plates (3) are fixed in an annular array around the core (8), and at least a portion of the edge of the wheel plate (3) is in dynamic sealing contact with the inner wall of the cylindrical cavity. When the impeller component rotates, the clean water between two adjacent wheel plates (3) is transported out along with the rotation; A fan-shaped thin plate (4) is provided at the upper part between two adjacent wheel plates (3), and the fan-shaped thin plate (4) is radially slidably mounted in the top surface of the core body (8) through a connecting rod (5), and the connecting rod (5) can synchronously telescope along the radial direction of the core body (8); when the impeller component rotates, the fan-shaped thin plate (4) pushes open the control valve at the bottom end of the fertilizer bin (2), so that the fertilizer falls into the area between the two wheel plates (3) where the fan-shaped thin plate (4) is located; The control valve comprises a conical plug (12) installed in a discharge hole (20) at the bottom of the fertilizer bin (2), wherein the discharge hole (20) is coaxially aligned with a feed hole provided on the cylinder body (1); The top end of the cone plug (12) is elastically and telescopically installed in the fertilizer bin (2) through a sliding column and a pressure spring (14), and the bottom end is connected to a vertical rod (15). The vertical rod (15) is vertically installed in the discharge hole (20) and its diameter is smaller than the diameter of the discharge hole (20). After the bottom end of the vertical rod (15) extends into the feed hole, it is fixed to a horizontal rod (16) arranged horizontally. The horizontal rod (16) is arranged along the cylinder body (1). A groove (18) is provided on the inner top surface, and a vertically mounted actuating pin (17) is fixedly connected to one end of the horizontal rod (16) close to the closed end of the groove (18). The bottom end of the actuating pin (17) extends out of the inner top surface of the cylinder body (1) so as to be able to contact the fan-shaped thin plate (4). The fan-shaped thin plate (4) pushes up the horizontal rod (16) through the actuating pin (17), thereby separating the cone plug (12) from the discharge hole (20).

2. The smart agricultural fertilizer mixing sprinkler irrigation system according to claim 1 is characterized in that: One side of the fan-shaped thin plate (4) is a blade-like structure, so that the trigger pin (17) can slide smoothly onto the surface of the fan-shaped thin plate (4).

3. The smart agricultural fertilizer mixing sprinkler irrigation system according to claim 1 is characterized in that: A notch (23) is also provided on the top side of each wheel plate (3), and a partition (21) is hinged in each notch (23), and one side of the partition (21) is connected to a resilient spring (22), and the spring (22) is installed in the notch (23) so that the partition (21) is in a position parallel to the surface of the wheel plate (3) in a free state; the spring (22) is in an L-shaped structure, and its vertical section is an isosceles trapezoidal structure, and its horizontal section is a flat plate structure, and the inner angle at the intersection of the isosceles trapezoidal structure and the flat plate structure has a rounded angle with an arc greater than 180 degrees, and the inclined surface of the isosceles trapezoidal structure is arranged to face away from the partition (21); the bottom end surface of the partition (21) is an arc surface, so that when the partition (21) rotates within a certain angle, the bottom of the partition (21) and the bottom surface of the notch (23) maintain a sealed contact; The position of the notch (23) must be such that: when the impeller component rotates, the actuating pin (17) just presses against the partition plate (21) and passes through the notch (23), and the actuating pin (17) cannot move upward at this time because it is insufficient to overcome the elastic force of the pressure spring (14), and the conical plug (12) maintains the sealing of the discharge hole (20).

4. The smart agricultural fertilizer mixing sprinkler irrigation system according to claim 1 is characterized in that: The connecting rod (5) is slidably mounted on the top surface of the core body (8) and slidably penetrates a shaft ring (9) integrally formed on the top surface of the core body (8), and the surface of the portion extending into the shaft ring (9) is provided with a flat thread; the shaft ring (9) is rotatably mounted on the inner top surface of the cylinder body (1), and a screw disk (10) is rotatably mounted in the shaft ring (9), and the surface of the screw disk (10) has a flat thread that matches the thread of the sliding rod (13), so that when the screw disk (10) rotates, all the connecting rods (5) and their fan-shaped thin plates (4) move radially along the core body (8).

5. The smart agricultural fertilizer mixing sprinkler irrigation system according to claim 4 is characterized in that: A rotating shaft (11) is vertically fixed at the center of the screw disk (10), and a driven gear (24) is fixed to the end of the rotating shaft (11) extending outside the cylinder body (1), and the driven gear (24) is transmission-connected to the motor.

6. The smart agricultural fertilizer mixing sprinkler irrigation system according to claim 5 is characterized in that: The motor is a stepper motor, and the motor is connected to a controller. The controller can adjust the motor rotation angle so that all the fan-shaped thin plates (4) move to a specified position along the radial direction of the core (8), thereby setting the path length for the fan-shaped thin plates (4) to maintain contact with the trigger pin (17), setting the opening time of the discharge hole (20), and determining the amount of fertilizer released.

7. The smart agricultural fertilizer mixing sprinkler irrigation system according to claim 6 is characterized in that: Each of the fertilizer bins (2) is connected to a corresponding fertilizer storage tank so as to replenish the corresponding fertilizer into the fertilizer bin (2). Each fertilizer bin (2) is provided with a number corresponding to a type of fertilizer. The bottom end of each fertilizer bin (2) is connected to the cylinder body (1) via a vertically arranged extension pipe section (19) so that the clean water between the two wheel plates (3) in the cylinder body (1) will not splash directly into the fertilizer bin (2).

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