Water and fertilizer integrated water-saving irrigation device

Abstract

This invention discloses an integrated water and fertilizer water-saving irrigation device, belonging to the technical field of agricultural irrigation devices. This integrated water and fertilizer water-saving irrigation device includes a mixing component for mixing water and fertilizer and a water flow sensing component for controlling the amount of fertilizer by controlling the amount of water. The mixing component includes a rotating shaft, mixing blades, a mixing tank, and a first drive component. The top of the mixing tank is equipped with a water inlet pipe and a feed pipe. The feed pipe is a square tube, and a storage box for storing fertilizer is connected to the top of the feed pipe. A feed flow regulating component for adjusting the flow rate is provided inside the feed pipe. The water flow sensing component includes a flow velocity sensing plate, a first reset spring, and a sliding rod. The flow velocity sensing plate is configured as an arc-shaped plate hinged to the side wall of the water inlet pipe, with the arc surface facing the side wall of the water inlet pipe. Through the cooperative design of the storage box and the feed pipe, the device can continuously replenish fertilizer without interrupting the irrigation process, solving the problem of frequent shutdowns for fertilizer replenishment in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of agricultural irrigation equipment technology, specifically to a water-saving irrigation device that integrates water and fertilizer. Background Technology

[0002] As an important technology in modern agriculture, fertigation technology has evolved from simple mixing to intelligent control. Early irrigation and fertilization systems mainly adopted a premixed design, where fertilizer and water were mixed in a storage tank before irrigation. While simple, this method suffered from uneven mixing, inaccurate proportions, and the need for frequent shutdowns for refilling. With the development of precision agriculture, various improved fertigation devices have emerged on the market, but many technical bottlenecks still exist in practical applications.

[0003] Current mainstream fertigation systems face the following main technical challenges: First, the precision of water-fertilizer ratio control is insufficient. Most devices use simple mechanical valves or electric pumps to control fertilizer addition, making it difficult to achieve precise linkage with water flow. Especially under fluctuating water flow conditions, fertilizer supply often fails to respond promptly, leading to unstable mixed solution concentration. Second, the complex electronic control system has a high failure rate in harsh farmland environments, resulting in high maintenance costs.

[0004] Existing integrated water and fertilizer irrigation devices place a mixing tank containing fertilizer and water at the edge of the field, mix it thoroughly, and then connect it to the input end of the irrigation pipeline laid in the field to complete the fertilization. However, when mixing fertilizer and water, the fertilizer is placed completely into the mixing tank before water is added, and the mixture is stirred by the stirring components inside the tank. After each fertilization, the equipment needs to be turned off and fertilizer and water added again for mixing, which takes a lot of time. Furthermore, the fertilizer-to-water ratio is difficult to control in real time, resulting in unstable concentration of the mixed solution. This not only wastes water and fertilizer resources and reduces the fertilization effect, but may also cause localized burns or nutrient deficiencies in crops due to uneven concentration, affecting the normal growth of crops. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems in the prior art and provide a water-saving irrigation device that integrates water and fertilizer, which can continuously replenish fertilizer without interrupting the irrigation process and avoids errors that may occur with manual mixing.

[0006] This invention provides a water-saving irrigation device integrating water and fertilizer, comprising a mixing tank for mixing and storing fertilizer and water; a stirring assembly disposed within the mixing tank, including a rotating shaft, stirring blades, and a first driving assembly, wherein the rotating shaft is vertically inserted into the mixing tank, the stirring blades are arranged in a plurality of circumferential arrays on the rotating shaft, and the first driving assembly is used to drive the rotating shaft to rotate; a feeding assembly disposed at the top of the mixing tank, including a water inlet pipe, a feed pipe, and a storage tank, wherein the feed pipe is a square tube, and the storage tank is fixedly connected to the top of the feed pipe; and a discharge flow rate regulating component for regulating the discharge flow rate of fertilizer, including a pair of components horizontally fixedly connected to the feed pipe. The pipe has a support plate, and each pair of support plates has a baffle slidably inserted inside. Each pair of baffles is fixedly connected to a moving rod on a side away from each other. One end of the moving rod passes through the feed pipe and is fixedly connected to a driving assembly. The driving assembly includes a flow rate sensing plate, a first reset spring, and a sliding rod. The flow rate sensing plate is configured as an arc-shaped plate that is hinged to the side wall of the water inlet pipe, with the arc surface facing the side wall of the water inlet pipe. One end of the first reset spring is connected to the arc surface of the flow rate sensing plate, and the other end is fixedly connected to the side wall of the water inlet pipe. One end of the sliding rod is horizontally slidably inserted into the water inlet pipe and is hinged to the flow rate sensing plate through a first hinge rod. The other end is hinged to the moving rod through a second hinge rod.

[0007] Preferably, the water inlet pipe is fixedly connected to a horizontally arranged support pipe, and a plurality of ball bearings are embedded in the inner side wall of the support pipe along the axial direction. The sliding rod is slidably disposed in the support pipe and fits against the plurality of ball bearings. The end of the support pipe away from the water inlet pipe is fixedly connected to the feed pipe through a pair of support rods.

[0008] Preferably, the water inlet pipe is placed inside the stirring pipe and one end is fixedly connected to an inclined guide pipe.

[0009] Preferably, the stirring blades are wavy and are rotatably connected to the rotating shaft via a connecting pipe. The rotating shaft is hollow and contains a second driving component for driving the connecting pipe to rotate.

[0010] Preferably, the first drive component is a motor, which is located at the top output end of the mixing tank and rotates through the mixing tank and is fixedly connected to the rotating shaft. The second drive component includes a pressure plate, a fixed tube, and embedded beads. The connecting tube has an embedded bead groove threaded in its internal thread. The pressure plate is vertically arranged inside the rotating shaft. The fixed tube is horizontally arranged and coincides with the axis of the connecting tube. The embedded beads are fixedly connected to the side wall of the fixed tube.

[0011] Preferably, the top of the pressure plate extends through the rotating shaft, and a sliding groove for sliding the pressure plate is provided on the rotating shaft. Several second return springs are fixedly connected to the inner side wall of the mixing tank. A cam is fixedly sleeved on the motor output shaft, and the cam presses the pressure plate when it rotates.

[0012] Preferably, a rotating disk is fixedly connected to the bottom end of the rotating shaft, the rotating disk is rotatably connected to the bottom of the inner side of the mixing tank, and several disturbance rods are arranged in an array around the rotating disk, with one end of each disturbance rod fixedly connected to a scraper that fits against the inner side wall of the mixing tank.

[0013] Preferably, the bottom of the storage box is provided with a vibration assembly, including a horizontally arranged vibration plate and a vibration motor. The vibration plate is connected to the inner wall of the storage box through an elastic support member, and the vibration motor is fixed below the vibration plate. The vibration plate is a mesh plate.

[0014] Preferably, the inner wall of the square tube structure of the feed pipe is coated with a wear-resistant coating, which is made of polytetrafluoroethylene.

[0015] Preferably, the surface of the flow sensing plate is provided with water flow sensing patterns, which are distributed in an array of grooves.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention provides a water-saving irrigation device integrating water and fertilizer: This system achieves automatic and precise adjustment of the water-fertilizer ratio. Through a purely mechanical automatic feedback system, it precisely solves the problem of real-time and precise control of the fertilizer-water ratio in existing technologies. With an innovative water flow sensing component design, the device can automatically adjust the fertilizer dosage based on the inflow, solving the problem of precise water-fertilizer ratio control in traditional irrigation devices. It utilizes the power of the water flow itself as a control signal: when water flows through the inlet pipe, its velocity and flow rate directly act on the arc-shaped velocity sensing plate, causing it to deflect at a corresponding angle. Through the linear restoring force of the first reset spring and the transmission of the sliding rod, this is accurately converted into linear control of the opening of the baffle in the inlet pipe. This achieves real-time, continuous, and proportional precise linkage where the larger the water flow, the larger the fertilizer opening; and when the water flow decreases, the fertilizer opening contracts synchronously. This avoids the traditional mode of relying on premixing tanks or electronic sensors for lagging control. This method not only has a rapid response and low delay but also fully utilizes the kinetic energy of the water flow, achieving zero-energy automatic control. It is unaffected by the harsh environments of farmland, such as humidity, dust, and corrosion, ensuring the long-term reliability and stability of the system under various complex working conditions.

[0017] Furthermore, through the coordinated design of the mixing and control components, the mixing effect and continuous operation capability after precise proportioning are ensured, systematically solving the problems of resource waste and low efficiency caused by inaccurate proportioning. The cooperation between the storage tank and the feed pipe allows for a continuous replenishment of fertilizer energy, realizing a continuous operation process of uninterrupted water and fertilizer supply, real-time proportion control, and efficient mixing, avoiding the loss of operating efficiency caused by frequent shutdowns for feeding in traditional equipment. At the same time, the mixing component, driven by the drive component, efficiently mixes the proportionally added water and fertilizer raw materials, ensuring that the final output mixture has a highly uniform and stable concentration, avoiding the risks of local crop burn or nutrient deficiency caused by concentration fluctuations in existing technologies, and greatly improving the utilization efficiency of water and fertilizer resources. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the mixing tank of the present invention.

[0020] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point B.

[0022] Figure 5 for Figure 2 Enlarged structural diagram at point C.

[0023] Figure 6 This is a schematic diagram of the material flow rate regulating component of the present invention.

[0024] Figure 7 This is a schematic diagram of the vibration component structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the vibrating plate structure of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Base; 2. Stirring assembly; 201. Rotating shaft; 202. Stirring blade; 203. Mixing tank; 204. First drive assembly; 3. Water inlet pipe; 4. Feed pipe; 5. Storage tank; 6. Feed flow rate regulating component; 61. Support plate; 62. Baffle; 63. Moving rod; 7. Drive assembly; 71. Flow rate sensing plate; 72. First return spring; 73. Sliding rod; 8. Support pipe; 9. Ball bearing; 10. Support rod; 11. Guide pipe; 12. Connecting pipe; 13. Second drive assembly; 131. Pressure plate; 132. Fixing pipe; 133. Embedded ball; 14. Second return spring; 15. Cam; 16. Rotating disk; 17. Disturbance rod; 18. Scraper; 19. Vibration assembly; 191. Vibrating plate; 192. Vibration motor; 193. Elastic support component. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-8 To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art.

[0028] The terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in this invention are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams.

[0029] While integrated water and fertilizer technology has been promoted for many years in current agricultural irrigation and fertilization applications, traditional devices still suffer from a series of technical pain points that urgently need to be addressed, severely restricting their accuracy and efficiency. Existing technologies mainly rely on premixed storage tank designs, where fertilizer and water are pre-mixed before irrigation. The primary problems exposed in this approach are uneven mixing and insufficient proportioning accuracy: most equipment uses simple mechanical valves or electric pumps to control fertilizer addition, making it difficult to achieve precise linkage with water flow. Especially under fluctuating water flow conditions, fertilizer supply often fails to respond promptly, leading to unstable mixture concentrations. For example, when pumps start and stop or pipeline pressure changes, traditional valve control systems often cause localized over- or under-fertilization due to response delays, not only wasting resources but also potentially causing localized crop burns or nutrient deficiencies.

[0030] Secondly, the electronic control system has poor adaptability to the harsh environment of farmland. Complex sensors and electronic control units have a high failure rate under high temperature, high humidity, and dusty field conditions, resulting in high maintenance costs and low reliability. Farmers often find it difficult to operate and maintain the equipment effectively due to the high technical barrier, further reducing its practicality and promotional value.

[0031] Furthermore, from an agronomic perspective, different soil types and crop growth stages have significantly different requirements for water and fertilizer concentrations. Sandy soils require frequent, small-volume irrigation, while clay soils are better suited to larger volumes of water; the nutrient requirements of crops also differ during the seedling, flowering, and fruiting stages. Most existing equipment lacks the capacity to adapt to this diversity, leading to low water and fertilizer utilization efficiency, serious resource waste, and even non-point source pollution, such as excessive nitrate levels in groundwater and soil salinization.

[0032] To address the aforementioned problems, the water-fertilizer integrated irrigation device provided by this invention achieves real-time and precise control of the water-fertilizer ratio through a purely mechanical automatic feedback adjustment system. Its core innovation lies in utilizing water flow dynamics to drive the adjustment mechanism. An arc-shaped flow velocity sensor plate detects changes in water flow, and a reset spring and sliding rod work together to control the opening of the fertilizer baffle, creating a continuous proportional adjustment where "a larger water flow results in a larger fertilizer opening, and a smaller water flow results in a smaller fertilizer opening." This not only completely solves the reliability problem of electronic control systems in harsh environments but also eliminates the need for external energy, offering rapid response, simple structure, and convenient maintenance, greatly improving the device's practicality and economy. Furthermore, by optimizing the mixing structure, adding flow guiding and disturbance components, and adopting adaptive nozzles, this device systematically improves mixing uniformity and field adaptability. This ensures precise fertilization while significantly improving water and fertilizer utilization efficiency, reducing resource waste and environmental pollution risks, aligning with the important trends of intelligent, precise, and sustainable development in modern agriculture.

[0033] This invention provides a water-saving irrigation device integrating water and fertilizer, such as... Figures 1-3As shown, the system includes a mixing tank 203 for mixing and storing fertilizer and water; a stirring assembly 2, disposed within the mixing tank 203, comprising a rotating shaft 201, stirring blades 202, and a first drive assembly 204, wherein the rotating shaft 201 is vertically inserted into the mixing tank 203, the stirring blades 202 are arranged in a plurality of circumferential arrays on the rotating shaft 201, and the first drive assembly 204 is used to drive the rotating shaft 201 to rotate; a feeding assembly, disposed at the top of the mixing tank 203, comprising a water inlet pipe 3, a feed pipe 4, and a storage tank 5, wherein the feed pipe 4 is a square tube, and the storage tank 5 is fixedly connected to the top of the feed pipe 4; and a discharge flow rate regulating component 6 for regulating the discharge flow rate of fertilizer, comprising a pair of components horizontally fixedly connected within the feed pipe 4. A pair of support plates 61 are each slidably inserted with a baffle 62. Each pair of baffles 62 is fixedly connected to a moving rod 63 on a side away from each other. One end of the moving rod 63 passes through the feed pipe 4 and is connected to a drive assembly. The drive assembly 7 includes a flow rate sensing plate 71, a first return spring 72, and a sliding rod 73. The flow rate sensing plate 71 is configured as an arc-shaped plate that is hinged to the side wall of the water inlet pipe 3, with the arc surface facing the side wall of the water inlet pipe 3. One end of the first return spring 72 is connected to the arc surface of the flow rate sensing plate 71, and the other end is fixedly connected to the side wall of the water inlet pipe 3. One end of the sliding rod 73 is horizontally slidably inserted into the water inlet pipe 3 and is hinged to the flow rate sensing plate 71 through a first hinge rod. The other end is hinged to the moving rod 63 through a second hinge rod.

[0034] In this embodiment, automatic and precise adjustment of the water-fertilizer ratio is achieved. Through the innovative design of the water flow sensing component 7, the device can automatically adjust the fertilizer application rate according to the inflow of water, solving the problem of difficult precise control of the water-fertilizer ratio in traditional irrigation devices. The flow velocity sensing plate 71 can sense the water flow speed in real time and convert the water flow information into fertilizer adjustment signals through a mechanical linkage mechanism, ensuring that the water-fertilizer mixing ratio is always kept at the optimal state. This automatic adjustment mechanism greatly improves the accuracy of irrigation and fertilization and avoids errors that may occur with manual mixing.

[0035] This improves the efficiency and quality of water and fertilizer mixing. The mixing component 2 adopts a multi-stage mixing structure, including components such as a rotating shaft 201, mixing blades 202, and disturbance rods 17, forming a three-dimensional mixing network. This design enables water and fertilizer to be fully and evenly mixed in a short time, avoiding the problem of uneven concentration in some areas that may occur in traditional mixing methods. At the same time, the wave-shaped mixing blades 202 increase fluid disturbance, further improving the mixing effect.

[0036] The device achieves continuous operation capability. Through the coordinated design of the storage tank 5 and the feed pipe 4, it can continuously replenish fertilizer without interrupting the irrigation process, solving the problem of frequent shutdowns for refueling in existing technologies. This continuous operation capability is particularly suitable for large-area farmland irrigation, significantly improving operational efficiency and reducing energy consumption and resource waste. By precisely controlling the water-fertilizer ratio and optimizing the mixing process, the device reduces water and fertilizer waste. At the same time, the mechanical adjustment mechanism requires no additional energy, relying solely on water flow power to complete the adjustment, achieving energy-saving and environmentally friendly irrigation and fertilization.

[0037] The adaptability and reliability of the device have been improved. The overall structural design takes into account the needs of different farmland environments, including an adjustable sprinkler system and a movable base, enabling the device to adapt to various terrains and crop requirements. The mechanical linkage mechanism is simple and reliable, reducing potential failure points and improving long-term stability.

[0038] Preferred, such as Figures 2-5 As shown, the water inlet pipe 3 is fixedly connected to a horizontally arranged support pipe 8. Several balls 9 are embedded in the inner wall of the support pipe 8 along the axial direction. The sliding rod 73 is slidably arranged in the support pipe 8 and fits against the balls 9. The end of the support pipe 8 away from the water inlet pipe 3 is fixedly connected to the feed pipe 4 through a pair of support rods 10.

[0039] In this embodiment, the design of the support tube 8 and the ball bearing 9 brings multiple technical advantages: First, the ball bearing 9 structure significantly reduces the movement resistance of the sliding rod 73, making the adjustment mechanism more sensitive to changes in water flow and enabling it to quickly and accurately adjust fertilizer supply according to changes in water flow; Second, the support tube 8 provides a stable guide for the sliding rod 73, avoiding potential deviation or jamming problems during long-term use and improving the reliability of mechanical transmission; Third, the support rod 10 fixes the support tube 8 to the feed tube 4, forming a stable triangular support structure, which enhances the rigidity of the overall device, reduces the impact of vibration on adjustment accuracy, and is particularly suitable for use in mobile irrigation equipment, effectively resisting vibration interference during transportation; The support tube 8 and ball bearing 9 enhance the responsiveness and motion stability of the sliding rod 73, ensuring that the water flow sensing component 7 can transmit the water flow signal to the fertilizer regulating mechanism in real time and accurately when the water flow changes. This directly solves the problem of "fertilizer supply not responding to water flow fluctuations in a timely manner" and ensures the real-time performance and accuracy of water-fertilizer ratio from a mechanical structure perspective.

[0040] Preferred, such as Figures 1-2 As shown, the water inlet pipe 3 is placed inside the stirring pipe and one end is fixedly connected to an inclined guide pipe 11.

[0041] In this embodiment, the inclined design of the guide pipe 11 optimizes the way water enters the mixing tank 203. On the one hand, the inclined angle guides the water flow to form a swirling flow, which works in coordination with the movement direction of the stirring blades 202, enhancing the initial mixing effect and reducing stirring energy consumption. On the other hand, the guide angle avoids splashing and bubble problems caused by water flowing directly to the bottom of the tank, making the mixing process more stable. It also extends the water flow path, increases the contact time between water and fertilizer, and improves the mixing uniformity. The angle of the guide pipe 11 is optimized to maintain a good guiding effect at different flow rates, ensuring the stable performance of the device under various operating conditions. The inclined guide pipe 11 optimizes the direction of water flow into the mixing tank 203 and the initial mixing effect, creating favorable conditions for subsequent precise stirring and concentration control, indirectly serving the core issue of proportion control, and reducing instantaneous unevenness in concentration caused by water flow impact.

[0042] Preferred, such as Figures 1-2 As shown, the stirring blade 202 is wavy and is rotatably connected to the rotating shaft 201 via the connecting pipe 12. The rotating shaft 201 is hollow and contains a second driving assembly 13 for driving the connecting pipe 12 to rotate.

[0043] In this embodiment, the combined design of the wave-shaped stirring blades 202 and the second drive assembly 13 creates a unique stirring dynamic. The wave-shaped blade surface generates alternating high and low pressure zones, forming micro-vortices, which significantly improves the local mixing efficiency. The rotatable connecting pipe 12 design allows the blade angle to be dynamically adjusted to adapt to mixtures of different viscosities. This adaptive characteristic avoids the problem of efficiency reduction when the concentration changes with traditional fixed blades. The second drive assembly 13 achieves automatic blade angle adjustment through mechanical linkage, eliminating the need for additional control devices, simplifying the system structure, and performing excellently when processing high-concentration fertilizers, effectively preventing the deposition and agglomeration of fertilizer particles.

[0044] By dynamically adjusting the stirring intensity and angle, the mixture can be made highly uniform in a short time under different water flow rates and fertilizer additions, directly overcoming the problem of mixture concentration fluctuation caused by ratio adjustment and ensuring the stability of the final output concentration.

[0045] Preferred, such as Figures 2-4 As shown, the first drive assembly 204 is a motor, which is located at the top of the mixing tank 203 and rotates through the mixing tank 203 and is fixedly connected to the rotating shaft 201. The second drive assembly 13 includes a pressure plate 131, a fixed tube 132 and an embedded bead 133. The connecting tube 12 has an embedded bead groove in its internal thread. The pressure plate 131 is vertically arranged inside the rotating shaft 201. The fixed tube 132 is horizontally arranged and coincides with the axis of the connecting tube 12. The embedded bead 133 is fixedly connected to the side wall of the fixed tube 132.

[0046] In this embodiment, the combination of motor drive and cam 15 pressure plate 131 mechanism achieves efficient energy conversion. The motor, a single power source, simultaneously drives the rotation of the stirring shaft and the adjustment of the blade angle, optimizing energy utilization efficiency. The cam 15 mechanism converts the rotational motion into regular reciprocating motion, providing precise driving force for the pressure plate 131. The design of the embedded beads 133 and the slots of the embedded beads 133 ensures the accuracy and reliability of the angle adjustment and avoids energy loss caused by sliding friction. The integrated drive system reduces the number of parts, lowers maintenance requirements, and achieves automatic coordination between stirring intensity and blade angle. It automatically optimizes stirring parameters according to the mixing process without manual intervention.

[0047] Preferred, such as Figures 2-4 As shown, the top of the pressure plate 131 passes through the rotating shaft 201, and a sliding groove for sliding the pressure plate 131 is provided on the rotating shaft 201. Several second return springs 14 are fixedly connected to the inner side wall of the mixing tank 203. A cam 15 is fixedly sleeved on the motor output shaft. When the cam 15 rotates, it presses the pressure plate 131.

[0048] In this embodiment, the cooperation between the return spring and the sliding groove creates an intelligent stirring and adjustment system. The second return spring 14 provides a stable restoring force, ensuring that the pressure plate 131 can move precisely along the contour of the cam 15. The sliding groove design allows the pressure plate 131 to move freely within the rotating shaft 201 while maintaining good guidance. This dynamic adjustment mechanism enables the stirring blade 202 to automatically adjust its working angle according to the state of the mixture. At low viscosity, the tilt angle is increased to improve flow rate, and at high viscosity, the tilt angle is decreased to enhance shear force. It is fully mechanical and automated, requiring no sensors or controllers, which reduces costs while improving reliability, making it very suitable for use in agricultural fields.

[0049] Preferred, such as Figures 1-2 As shown, a rotating disk 16 is fixedly connected to the bottom of the rotating shaft 201. The rotating disk 16 is rotatably connected to the bottom of the inner side of the mixing tank 203. Several interference rods 17 are arranged in an array around the rotating disk 16. One end of each interference rod 17 is fixedly connected to a scraper 18 that fits against the inner wall of the mixing tank 203.

[0050] In this embodiment, the combination of rotating disk 16 and scraper 18 solves the problem of sedimentation at the bottom of mixing tank 203. Rotating disk 16 drives agitator 17 to generate an upward liquid flow, preventing heavy particles from settling. Scraper 18 fits tightly against the wall of mixing tank 203, effectively removing adhering substances and maintaining heat transfer efficiency. The bottom stirring design is particularly suitable for processing fertilizers that are prone to sedimentation, such as phosphate fertilizer. The specific arrangement of agitator 17 forms a regular flow pattern, working in conjunction with the upper stirring to establish a complete three-dimensional mixing network, significantly reducing the need for manual cleaning, extending continuous working time, and avoiding the problem of nozzle 22 clogging caused by sediment.

[0051] It effectively prevents fertilizer from settling and adhering to the tank wall in mixing tank 203, avoiding subsequent ratio deviations caused by residual fertilizer. From the perspective of long-term operation, it ensures the accuracy and reliability of the ratio control mechanism and solves the problem of ratio loss caused by equipment problems.

[0052] Preferred, such as Figure 7 As shown, the bottom of the storage box 5 is provided with a vibration assembly 19, including a horizontally arranged vibration plate 191 and a vibration motor 192. The vibration plate 191 is connected to the inner wall of the storage box 5 through an elastic support member 193, and the vibration motor 192 is fixed below the vibration plate 191. The vibration plate 191 is a mesh plate.

[0053] In this embodiment, to prevent fertilizer from clumping or forming bridging in the storage box 5, the vibration plate 191 and the vibration motor 192 work together to effectively avoid the problem of fertilizer clumping caused by moisture or static electricity, ensuring smooth fertilizer feeding and further improving the material control accuracy of the water flow sensing component 7.

[0054] Preferred, such as Figures 1-2 As shown, the inner wall of the square tube structure of the feed pipe 4 is coated with a wear-resistant coating, which is made of polytetrafluoroethylene.

[0055] In this embodiment, the wear-resistant coating is used to reduce the wear of fertilizer granules on the baffle 62 and the support plate 61. It extends the service life of the feed flow regulating component 6. Especially when processing granular fertilizer for a long time, it can maintain the smooth sliding of the baffle 62 and ensure the long-term stability of the water-fertilizer ratio control.

[0056] Preferred, such as Figures 2-5 As shown, the surface of the arc-shaped flow sensing plate is provided with water flow sensing patterns, which are distributed in an array of several grooves.

[0057] In this embodiment, to enhance the sensitivity to changes in water flow and make the response of the first return spring 72 more linear, the surface texture design is used to optimize the water flow dynamics characteristics, so that the water flow sensing component 7 can still accurately sense changes in water flow under low flow conditions, thereby improving the control accuracy across the entire flow range.

[0058] The method of using the integrated water and fertilizer water-saving irrigation device of the present invention is as follows: Before use, move the device to the target irrigation area via the brake roller 26, step on the brake to fix the device, ensure the base 1 is stable, connect the water inlet pipe 3 to a stable water source, and add water-soluble fertilizer to the storage tank 5; check if the water flow sensing component 7 is flexible: manually test the sliding of the baffle 62 of the feed pipe 4, and observe whether the flow rate sensing plate 71 can swing freely with the water flow; before starting the motor, confirm that the rotating shaft 201 rotates clockwise and that the stirring blade 202 and the disturbance rod 17 are not stuck; during initial setting, the opening of the baffle 62 can be pre-adjusted to the preset range as the basic fertilizer supply amount, and the spray pipe 21 is positioned on top of the crop through the adjustment pipe, and the adjustment pipe is extended to the required length, and the spray pipe 21 is fixed with clamps.

[0059] After the water source is turned on, the water flow impacts the flow rate sensing plate 71. Its arc design increases the deflection angle as the flow rate increases. Through the mechanical linkage of the first reset spring 72 and the sliding rod 73, the opening of the feed pipe 4 baffle 62 is adjusted synchronously, realizing automatic proportioning of more fertilizer supplied as the water flow increases. In the mixing assembly 2, the motor drives the rotating shaft 201 to rotate the wave-shaped blades, generating a three-dimensional vortex. At the same time, the cam 15 mechanism, through the pressure plate 131 and the second reset spring 14, causes the mixing blades 202 to periodically swing, enhancing the local shear force. When the mixed liquid reaches the set concentration, the outlet pipe 19 control valve 20 is opened, and the expansion state of the cross-shaped water outlet hole 24 of the silicone elastic diaphragm 23 is observed. During the sprinkler irrigation process, the atomization uniformity of the diversion grid 25 needs to be checked regularly. If local concentration abnormalities are found, they can be corrected by adjusting the motor speed or manually fine-tuning the opening of the baffle 62.

[0060] After the operation is completed, the fertilizer supply should be turned off first, and the system should be kept flushed with clean water for a period of time to drain the residual liquid in the mixing tank 203 and disassemble the nozzle 22 to clean the cross hole. When the system is not in use for a long time, the liquid in the system should be drained, the regulating pipe should be contracted, and the sliding rod 73, hinge points and other moving parts should be lubricated. When dealing with high-concentration fertilizers, it is recommended to reduce the opening of the initial baffle 62 and increase the motor speed. If used on a slope, the base 1 should be leveled with shims and the length of the spray pipe 21 should be shortened to maintain balance. When switching fertilizer types, the system must be thoroughly cleaned. The original mixture should be drained first, and then clean water should be circulated. Special attention should be paid to cleaning the bead groove and the gap of the baffle 62 to prevent cross-contamination of different fertilizers. This device can improve the uniformity of water and fertilizer mixing through mechanical automatic adjustment. It is more water-saving and fertilizer-saving than the traditional method and is especially suitable for the precision irrigation needs of large-area farmland.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-saving irrigation device integrating water and fertilizer, characterized in that, include: Mixing tanks are used to mix and store fertilizers with water. A stirring assembly, disposed within the mixing tank, includes a rotating shaft, stirring blades, and a first driving assembly. The rotating shaft is vertically inserted into the mixing tank, and the stirring blades are arranged in a plurality of circumferential arrays on the rotating shaft. The first driving assembly is used to drive the rotating shaft to rotate. A feeding assembly is located at the top of the mixing tank and includes a water inlet pipe, a feed pipe, and a storage tank. The feed pipe is a square tube, and the storage tank is fixedly connected to the top of the feed pipe. A flow rate regulating component for adjusting the flow rate of fertilizer includes a pair of horizontally fixed support plates connected inside the feed pipe. Each support plate has a baffle slidably inserted into it. Each baffle has a movable rod fixedly connected to a side away from each other. One end of the movable rod passes through the feed pipe and is fixedly connected to a driving assembly. The driving assembly includes a flow rate sensing plate, a first return spring, and a sliding rod. The flow rate sensing plate is an arc-shaped plate hinged to the side wall of the inlet pipe, with the arc surface facing the side wall. One end of the first return spring is connected to the arc surface of the flow rate sensing plate, and the other end is fixedly connected to the side wall of the inlet pipe. One end of the sliding rod is horizontally slidably inserted into the inlet pipe and hinged to the flow rate sensing plate via a first hinge rod, while the other end is hinged to the movable rod via a second hinge rod.

2. The water-saving irrigation device integrating water and fertilizer as described in claim 1, characterized in that, The water inlet pipe is fixedly connected to a horizontally arranged support pipe. Several ball bearings are embedded in the inner wall of the support pipe along the axial direction. The sliding rod is slidably disposed in the support pipe and fits against the ball bearings. The end of the support pipe away from the water inlet pipe is fixedly connected to the feed pipe through a pair of support rods.

3. The water-saving irrigation device integrating water and fertilizer as described in claim 1, characterized in that, The water inlet pipe is placed inside the stirring pipe, and one end is fixedly connected to an inclined guide pipe.

4. The water-saving irrigation device integrating water and fertilizer as described in claim 1, characterized in that, The stirring blades are wavy and are rotatably connected to the rotating shaft via a connecting pipe. The rotating shaft is hollow and contains a second driving component for driving the connecting pipe to rotate.

5. The water-saving irrigation device integrating water and fertilizer as described in claim 4, characterized in that, The first driving component is a motor, which is located at the top output end of the mixing tank and rotates through the mixing tank and is fixedly connected to the rotating shaft. The second driving component includes a pressure plate, a fixed tube, and embedded beads. The connecting tube has an embedded bead groove threaded in its internal thread. The pressure plate is vertically arranged inside the rotating shaft. The fixed tube is horizontally arranged and coincides with the axis of the connecting tube. The embedded beads are fixedly connected to the side wall of the fixed tube.

6. The water-saving irrigation device integrating water and fertilizer as described in claim 5, characterized in that, The top of the pressure plate passes through the rotating shaft, and a sliding groove for sliding the pressure plate is provided on the rotating shaft. Several second return springs are fixedly connected to the inner side wall of the mixing tank. A cam is fixedly sleeved on the motor output shaft, and the cam presses the pressure plate when it rotates.

7. The water-saving irrigation device integrating water and fertilizer as described in claim 1, characterized in that, A rotating disk is fixedly connected to the bottom end of the rotating shaft. The rotating disk is rotatably connected to the bottom of the inner side of the mixing tank. Several disturbance rods are arranged in an array around the rotating disk. One end of each disturbance rod is fixedly connected to a scraper that fits against the inner side wall of the mixing tank.

8. The water-saving irrigation device integrating water and fertilizer as described in claim 1, characterized in that, The storage box is equipped with a vibration assembly at the bottom, including a horizontally arranged vibration plate and a vibration motor. The vibration plate is connected to the inner wall of the storage box through an elastic support member, and the vibration motor is fixed below the vibration plate. The vibration plate is a mesh plate.

9. The water-saving irrigation device integrating water and fertilizer as described in claim 1, characterized in that, The inner wall of the square tube structure of the feed pipe is coated with a wear-resistant coating, which is made of polytetrafluoroethylene.

10. The water-saving irrigation device integrating water and fertilizer as described in claim 1, characterized in that, The surface of the flow sensing plate is provided with water flow sensing patterns, which are distributed in an array of grooves.

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