Ecological farm crop drip irrigation cultivation device

Abstract

The invention discloses an ecological farm crop drip irrigation cultivation device which comprises a drip irrigation assembly, an air-water mixing pressurization module and a liquid conveying pipeline, the air-water mixing pressurization module is connected with the liquid conveying pipeline, and the drip irrigation assembly is installed below the liquid conveying pipeline; the drip irrigation assembly comprises segmented pipe bodies and drip irrigation heads arranged at the bottom ends of the segmented pipe bodies, the segmented pipe bodies are connected through male and female buckles, scale marks are arranged on the outer surfaces of the segmented pipe bodies, and the head ends of the segmented pipe bodies are connected with the gravity water supply pipe. Through the multi-stage anti-blocking structural design of the drip irrigation head, the anti-blocking capacity and the maintenance convenience are improved, spiral flow guide protrusions enable water flow to generate rotational flow, impurities are separated through centrifugal force, the load of a filter screen is reduced, spiral blades are matched with an inclined slag discharging pipe to automatically push the impurities, accumulation and blocking are avoided, and the hole wall is prevented from being scoured due to the over-flow-speed change of conical drip holes, so that the service life of the drip irrigation head is prolonged. The blocking risk is reduced; the detachable threaded connection structure supports rapid cleaning, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural irrigation, and in particular to a drip irrigation cultivation device for crops in an ecological farm. Background Art

[0002] Drip irrigation, a core technology in precision agriculture, has evolved over half a century from a single-pipe drip system to a comprehensive system integrating the Internet of Things, intelligent control, and integrated water and fertilizer management. With the increasing global water shortage and the growing popularity of eco-agriculture, drip irrigation's advantages in water conservation, crop yield increases, and labor cost reduction have become increasingly evident, making it a standard feature of modern eco-farming farms.

[0003] Currently, drip irrigation technology is developing towards intelligent, energy-saving, and multifunctional features, such as integrating soil moisture sensing, remote control, and air-water mixing to meet the needs of new agricultural models such as organic cultivation and soilless cultivation. However, the following technical issues still exist: One of the core challenges of drip irrigation systems is emitter clogging, especially when using non-clean water sources such as biogas slurry and rainwater, where impurities such as silt and humus are easily deposited. Traditional filtration devices often use a single screen structure, requiring frequent disassembly and cleaning, resulting in high maintenance costs. For example, the pore size of conventional dripper screens must be smaller than the drip hole diameter (typically 0.5-1mm), but fine particles in the water flow can still be trapped, causing flow reduction or even interruption.

[0004] 2. Traditional drip irrigation relies on pump pressure or terrain elevation differences to drive water flow, resulting in high energy consumption (approximately 1-3 kWh per mu). The irrigation water also contains low dissolved oxygen (typically 5-7 mg / L), which affects crop root respiration. Air-water mixing technology, which injects microbubbles into the water, can increase dissolved oxygen levels (targeting 8-12 mg / L). However, existing solutions often use complex air pump-mixing chamber structures, resulting in high equipment costs and poor mixing uniformity, making them difficult to implement on small and medium-sized farms.

[0005] 3. Ecological farms often face challenges such as diverse crop varieties, variable row spacing, and undulating terrain. Traditional drip irrigation lines are fixed and difficult to adjust. Gravity irrigation, especially in hilly areas, can easily lead to uneven pressure, resulting in insufficient flow from remote drippers. Furthermore, the fixed angle of drippers makes it difficult to precisely target the root zones of different crops, resulting in water waste.

[0006] Conventional drip irrigation systems rely on mains electricity to power the water pumps, requiring the installation of dedicated power grids in remote farms, which is costly. While solar drip irrigation systems can address power supply issues, existing solutions suffer from low energy storage efficiency (e.g., short lifespan of lead-acid batteries) and high-power booster pumps (typically >100W), making 24 / 7 energy-efficient operation difficult.

[0007] In summary, existing drip irrigation technology still faces bottlenecks in anti-clogging reliability, energy consumption control, and environmental adaptability. Especially in ecological farm scenarios, it faces the following problems: Circulating water contains many impurities, and traditional filtration technology is difficult to balance filtration efficiency and maintenance convenience; The traditional water pump boosting mode has high energy consumption and does not meet the green development requirements of ecological farms; Fixed pipes and dripper angles cannot adapt to the irrigation needs of different crops, resulting in poor irrigation uniformity; High-end smart drip irrigation systems are expensive and unaffordable for small and medium-sized farms, while simple systems lack real-time monitoring and adaptive adjustment capabilities. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an ecological farm crop drip irrigation cultivation device.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides an ecological farm crop drip irrigation cultivation device, comprising a drip irrigation component, an air-water mixing and pressurizing module, and an infusion pipeline. The air-water mixing and pressurizing module is connected to the infusion pipeline, and the drip irrigation component is installed below the infusion pipeline. The drip irrigation assembly includes a segmented tube body and a drip irrigation head provided at the bottom end of the segmented tube body. The segmented tube bodies are connected by male and female snap fasteners, and scale lines are provided on the outer surface of the segmented tube body. The head end of the segmented tube body is connected to the gravity water supply pipe and is provided with a solenoid valve. The solenoid valve is connected to a remote control unit via a communication line. The infusion pipeline includes a main pipeline, a branch pipe and a gravity water supply pipe. The main pipeline is connected to the air-water mixing and boosting module. The main pipeline is connected to the branch pipe through a reducing multi-way joint. A metal corrugated hose is connected between the branch pipe and the gravity water supply pipe. A water pressure sensor is installed inside the head end of the gravity water supply pipe, and an angle-adjustable drip irrigation bracket is installed at the bottom end of the gravity water supply pipe. The angle-adjustable drip irrigation bracket comprises an articulated seat and a telescopic frame, the top end of the telescopic frame is connected to the articulated seat, and the articulated seat is connected to a gravity water supply pipe.

[0010] As a preferred technical solution of the present invention, the drip irrigation head is composed of a spiral flow channel, a filter flow channel and a dripper that are threaded in sequence; The inner wall of the spiral flow channel is provided with spiral guide protrusions distributed spirally along the axial direction of the pipeline, with a height of 0.5-1mm and a pitch of 5-10mm; A filter screen is provided at the bottom end of the inner part of the filter flow channel, and a spiral blade is provided above the filter screen. A slag discharge pipe communicating with the conveying path of the spiral blade is provided on the outer side of the filter flow channel. An upwardly inclined angle A is formed between the slag discharge pipe and the outer wall of the filter flow channel, and the value range of the angle A is: 70-80°; The surface of the dripper is provided with a plurality of conical drip holes, the upper hole diameter of the conical drip holes being 1.2 mm and the lower hole diameter being 0.8 mm; Silicone sealing rings are embedded in the threaded interfaces of the spiral flow channel, the filtering flow channel and the dripper.

[0011] As a preferred technical solution of the present invention, a cover plate is connected to the pipe opening of the slag discharge pipe via an elastic member.

[0012] As a preferred technical solution of the present invention, the air-water mixing and pressurizing module includes an air compression unit, a venturi tube and a bubble regulating valve; The air compression unit is an oil-free scroll compressor, and the output port is connected to the bubble regulating valve; The bubble regulating valve is an electric proportional valve that controls the bubble density to 5-20 / cm 3 , bubble diameter 0.1-0.3mm; The air inlet end of the venturi tube is connected to the bubble regulating valve, and the water inlet end of the venturi tube is connected to a honeycomb diverter, wherein the single pore diameter of the honeycomb diverter is 1-2 mm; The diameter ratio of the air inlet end to the water inlet end of the venturi tube is 1:3, and a pressure compensation plate is provided inside the water inlet end to maintain a stable air-water mixing ratio. The air and water are mixed in a volume ratio of 1:10-1:15. The discharge end of the venturi tube is connected to the main pipeline through a pipeline.

[0013] As a preferred technical solution of the present invention, a buffer tank is provided between the main pipeline and the branch pipe, and an automatic exhaust valve is provided at the top of the buffer tank.

[0014] As a preferred technical solution of the present invention, it also includes a low-power drive unit, which includes a water pump, supporting pipes and a solar-powered lithium battery pack. The water pump is connected in parallel with the branch pipe through the supporting pipe, and a one-way valve is provided on the supporting pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention improves anti-clogging ability and maintenance convenience through the multi-stage anti-clogging structure design of the drip irrigation head. The spiral guide protrusion causes the water flow to generate swirl, separating impurities through centrifugal force and reducing the load on the filter. The spiral blades cooperate with the inclined slag discharge pipe to automatically push impurities to avoid accumulation and blockage. The tapered drip hole flushes the hole wall due to the change in flow rate, reducing the risk of blockage. The detachable threaded connection structure supports quick cleaning and improves maintenance efficiency.

[0016] 2. The present invention achieves dual optimization of improved dissolved oxygen efficiency and reduced energy consumption through the air-water mixing and pressurization module. The Venturi tube uses the negative pressure of the water flow to inhale air, and combined with the bubble regulating valve to accurately control the bubble density and diameter, the dissolved oxygen content of the irrigation water is increased, promoting root respiration and nutrient absorption. The Venturi tube can achieve air-water mixing without additional power, significantly reducing the overall energy consumption of the system.

[0017] 3. This invention achieves enhanced system flexibility and terrain adaptability through a modular piping and adjustable bracket design. The segmented pipe body uses male and female snap connections, allowing for quick length adjustment to accommodate different crop row spacings. A corrugated metal hose connects the branch pipe and the gravity water supply pipe to compensate for installation errors caused by terrain fluctuations. The angle-adjustable drip irrigation bracket uses an articulated seat and telescopic bracket to adjust the drip irrigation angle and height, precisely aligning it with the crop roots and reducing water evaporation losses.

[0018] 4. This invention achieves off-grid operation and energy conservation through a low-power drive unit and solar power supply. A water pressure sensor monitors pipeline pressure in real time and activates a low-power water pump only when gravity irrigation is insufficient, reducing the average annual operating time. Powered by a solar lithium battery pack, it reduces dependence on mains electricity and is suitable for use in remote farms.

[0019] 5. The present invention achieves water pressure stability and extends system life through the design of a buffer tank and an automatic exhaust valve. The elastic diaphragm of the buffer tank absorbs water hammer impact, effectively controls pipeline pressure fluctuations, and avoids pipeline rupture caused by sudden pressure rise when the solenoid valve is opened and closed; the automatic exhaust valve promptly discharges free gas in the gas-water mixture to prevent air blockage, ensure continuous and stable water flow, and reduce the uniformity error of the dripper flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation of the gravity water supply pipe of the present invention; Figure 3 It is a structural schematic diagram of the drip irrigation assembly of the present invention; Figure 4This is a disassembled cross-sectional view of the drip irrigation head of the present invention; Figure 5 is a cross-sectional view of a honeycomb splitter of the present invention; Figure 6 The present invention Figure 2 Schematic diagram of the internal structure of the middle part B; In the figure: 1, drip irrigation assembly; 11, segmented pipe body; 12, drip irrigation head; 13, solenoid valve; 2. Air-water mixing booster module; 21. Air compression unit; 22. Venturi tube; 23. Bubble regulating valve; 24. Honeycomb diverter; 3. Infusion pipeline; 31. Main pipeline; 32. Branch pipe; 33. Gravity water supply pipe; 34. Metal corrugated hose; 35. Water pressure sensor; 36. Angle-adjustable drip irrigation bracket; 361. Articulated seat; 362. Telescopic bracket; 38. Buffer tank; 39. Automatic exhaust valve; 4. Low-power drive unit; 41. Water pump; 42. Supporting pipelines; 43. Lithium battery pack; 121. Spiral flow channel; 122. Filter flow channel; 123. Dripper; 124. Filter screen; 125. Spiral blade; 126. Slag discharge pipe; 127. Conical drip hole. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example 1 like Figure 1-6 As shown, the present invention provides an ecological farm crop drip irrigation cultivation device, comprising a drip irrigation component 1, an air-water mixing and pressurizing module 2, and an infusion pipeline 3. The air-water mixing and pressurizing module 2 is connected to the infusion pipeline 3, and the drip irrigation component 1 is installed below the infusion pipeline 3. The drip irrigation assembly 1 includes a segmented tube body 11 and a drip irrigation head 12 provided at the bottom end of the segmented tube body 11. The segmented tube bodies 11 are connected by male and female snap fasteners, and scale lines are provided on the outer surface of the segmented tube body 11. The head end of the segmented tube body 11 is connected to the gravity water supply pipe 33 and is provided with a solenoid valve 13. The solenoid valve 13 is connected to a remote control unit via a communication line. The infusion pipeline 3 includes a main pipeline 31, a branch pipe 32, and a gravity water supply pipe 33. The main pipeline 31 is connected to the air-water mixing and boosting module 2. The main pipeline 31 is connected to the branch pipe 32 through a reducing multi-way joint. A metal corrugated hose 34 is connected between the branch pipe 32 and the gravity water supply pipe 33. A water pressure sensor 35 is installed at the head end of the gravity water supply pipe 33, and an angle-adjustable drip irrigation bracket 36 is installed at the bottom end of the gravity water supply pipe 33. The angle-adjustable drip irrigation bracket 36 includes a hinged seat 361 and a telescopic frame 362 . The top end of the telescopic frame 362 is connected to the hinged seat 361 , and the hinged seat 361 is connected to the gravity water supply pipe 33 .

[0023] Specifically, in this embodiment, the air-water mixing and pressurizing module 2 is connected to the main pipeline 31 of the infusion pipeline 3 through a pipeline, and is responsible for air-water mixing and pressurizing the irrigation water; the drip irrigation component 1 is installed below the infusion pipeline 3 through a gravity water supply pipe 33, and implements precise drip irrigation directly to the crops.

[0024] The segmented pipe 11 features a modular design with male and female snap-on connections, allowing for flexible adjustment of pipe length based on crop row spacing. Scale lines on the outer surface allow for quantitative adjustment of segment length, ensuring installation accuracy. Its head end connects to the gravity water supply pipe 33 via threads or a flange, with a solenoid valve 13 installed at the connection. This solenoid valve is connected to a remote control unit, such as a farm central control system, via a communication link, such as RS485 or a wireless module, enabling remote on / off control.

[0025] The drip irrigation head 12 is installed at the bottom end of the segmented pipe body 11. The specific structure is described in detail in Example 2. This embodiment mainly reflects its installation position and function.

[0026] The main pipe 31 serves as the core water supply pipeline. One end is connected to the drainage end of the venturi tube 22 of the air-water mixing and boosting module 2, and the other end is branched into multiple branch pipes 32 through a reducing multi-way joint to realize the diversion of water flow. The branch pipe 32 is connected to the gravity water supply pipe 33 through a metal corrugated hose 34. The flexibility of the hose is used to compensate for installation errors and terrain undulations to ensure stable water flow. A water pressure sensor 35 is integrated into the head end of the gravity water supply pipe 33 to monitor the water pressure in the pipeline in real time. If it is lower than 0.1MPa, the water pump 41 of the low-power drive unit 4 is triggered, see Example 4; the bottom end is installed with an angle-adjustable drip irrigation bracket 36, which includes a hinged seat 361 and a telescopic bracket 362. The hinged seat 361 is hinged to the gravity water supply pipe 33, allowing the pipeline to swing in a vertical plane, adjusting the drip irrigation angle and providing a gravity drip irrigation waterway; the bracket height is adjusted by a telescopic rod to adapt to different crop heights or ridge slopes.

[0027] During drip irrigation, the water inlet of the honeycomb diverter 24 preferably uses recycled water from an ecological farm. For example, water from a biogas fermentation pool is mixed with rainwater, and tap water and water-soluble fertilizers are added to form a water-fertilizer mixture in a reservoir. After the coarse particles are filtered out by a cyclone desander, the mixture is transported to the honeycomb diverter 24 through a pipeline. The honeycomb structure with a single pore size of 1-2 mm is used to evenly divert the water, ensuring a stable water flow entering the venturi tube 22.

[0028] The water pressure sensor 35 provides real-time feedback on the water pressure at the head end of the gravity water supply pipe 33. When the system relies on gravity irrigation, if the terrain elevation difference meets the requirements, no additional power supply is required. If the water pressure is insufficient, the low-power drive unit 4 assists in boosting the pressure, achieving energy-saving operation.

[0029] The male and female snap-fit ​​design of the segmented tube body 11 supports quick assembly and disassembly, and the scale lines can accurately control the spacing of the drip irrigation heads 12 to adapt to the planting density requirements of different crops; the angle-adjustable drip irrigation bracket 36 uses the articulation and telescopic functions to align the drip irrigation heads 12 with the crop roots to avoid water waste.

[0030] Example 2 like Figure 3 As shown, the drip irrigation head 12 of the present invention is composed of a spiral flow channel 121, a filter flow channel 122 and a dripper 123 that are sequentially threaded together; The inner wall of the spiral flow channel 121 is provided with spiral guide protrusions distributed spirally along the axial direction of the pipe, with a height of 0.5-1mm and a pitch of 5-10mm; A filter screen 124 is provided at the bottom end of the filter channel 122, and a spiral blade 125 is provided adjacent to and above the filter screen 124. A slag discharge pipe 126 is provided on the outside of the filter channel 122 and communicates with the conveying path of the spiral blade 125. An upwardly inclined angle A is formed between the slag discharge pipe 126 and the outer wall of the filter channel 122, and the value range of the angle A is: 70-80°; The surface of the dripper 123 is provided with a plurality of conical drip holes 127 , the upper diameter of the conical drip holes 127 being 1.2 mm and the lower diameter being 0.8 mm; Silicone sealing rings are embedded in the threaded interfaces of the spiral flow channel 121 , the filter flow channel 122 and the dripper 123 .

[0031] The opening of the slag discharge pipe 126 is connected to a cover plate via an elastic member.

[0032] Specifically, in this embodiment, the drip irrigation head 12 is composed of a spiral flow channel 121, a filter flow channel 122, and a dripper 123 connected in sequence by threads. Each component is sealed by an embedded silicone seal ring to prevent leakage. The entire structure is detachable for easy maintenance and cleaning.

[0033] The spiral flow channel 121 pre-accelerates and guides the water flow. When the water flows through, it is guided by the spiral protrusions to generate a swirl, which increases the flow rate and forms a vortex. On the one hand, it can flush the inner wall of the pipe to prevent impurities from adhering. On the other hand, it can preliminarily separate larger particles of impurities in the water through centrifugal force, reducing the load on the subsequent filtering flow channel 122.

[0034] The filter channel 122 is used for impurity filtering and slag discharge. The filter screen 124 is installed at the bottom end of the filter channel 122. A fine-mesh filter screen, such as 100 mesh or above, is used to intercept suspended matter in the water, such as mud and humus, to avoid clogging the drip holes. The spiral blade 125 is located above the filter screen 124 and rotates with the water flow. After the drip irrigation water enters the filter channel 122 through the vortex of the spiral channel 121, the impurities are intercepted by the filter screen 124. The spiral blade 125 rotates with the water flow, pushing the impurities along the inner wall of the channel toward the slag discharge pipe 126. When the impurities accumulate enough, the cover plate is pushed open, so that the internal impurities can be discharged. At the same time, since the slag discharge pipe 126 is in a slightly tilted state, the liquid can be prevented from flowing out of the slag discharge pipe, and the impurities can be better gathered at the bottom end of the slag discharge pipe.

[0035] The filtered water flows into the dripper 123. The multiple conical drip holes 127 on the surface of the dripper 123 generate local resistance through changes in cross-sectional area, which refines the water flow into a stable drip flow to avoid flow fluctuations.

[0036] The filter channel 122 intercepts fine particles, while the tapered drip holes 127 flush and prevent blockage, reducing the risk of clogging in the drip irrigation system. The threaded connection structure allows for quick disassembly, facilitating regular cleaning of the filter screen 124 and the slag discharge pipe 126, and reducing maintenance costs. Furthermore, the spiral channel 121 and the tapered holes 127 work together to maintain a stable drip rate within a certain range of water pressure fluctuations, adapting to the varying terrain elevations across the farm.

[0037] Example 3 like Figure 1 As shown, the air-water mixing and pressurizing module 2 of the present invention includes an air compression unit 21, a venturi tube 22 and a bubble regulating valve 23; The air compression unit 21 is an oil-free scroll compressor, and the output port is connected to the bubble regulating valve 23; The bubble regulating valve 23 is an electric proportional valve that controls the bubble density to 5-20 / cm 3 , bubble diameter 0.1-0.3mm; The air inlet end of the venturi tube 22 is connected to the bubble regulating valve 23, and the water inlet end of the venturi tube 22 is connected to the honeycomb diverter 24. The single pore diameter of the honeycomb diverter 24 is 1-2 mm. The diameter ratio of the air inlet end to the water inlet end of the venturi tube 22 is 1:3, and a pressure compensation plate is provided inside the water inlet end to maintain a stable air-water mixing ratio. The air and water are mixed in a volume ratio of 1:10-1:15. The discharge end of the venturi tube 22 is connected to the main pipe 31 through a pipe.

[0038] Specifically, in this embodiment, the air-water mixing and pressurizing module 2 functions by mixing air and irrigation water to increase the water's kinetic energy and dissolved oxygen content, thereby optimizing the water and nutrient absorption efficiency of crop roots. The module consists of an air compression unit 21, a Venturi tube 22, a bubble control valve 23, and a honeycomb diverter 24. These components are precisely connected by pipes, achieving a fluid output with a controllable air-water mixing ratio and stable pressure.

[0039] The air compression unit 21 provides a clean air source supply, and its output port is connected to the bubble regulating valve 23 through a pressure-resistant hose, which can provide 0.2-0.5MPa compressed air with stable airflow and no pulse.

[0040] The bubble control valve 23 adjusts the air intake by controlling the current signal to achieve precise control of bubble density and diameter. The key parameters are: Bubble density: 5-20 / cm³, which can be adjusted dynamically according to the oxygen demand characteristics of crops. For example, crops with well-developed root systems require higher dissolved oxygen. Bubble diameter: 0.1-0.3mm, tiny bubbles stay suspended in water longer, and dissolved oxygen efficiency is increased by more than 30%.

[0041] The bubble regulating valve 23 is linked to the remote control unit, for example, through feedback data from the soil moisture sensor and the dissolved oxygen sensor, to automatically adjust the bubble parameters to achieve intelligent irrigation.

[0042] The honeycomb flow divider 24 cuts the water flow in the main water inlet pipe into multiple thin streams, ensuring that the water flow entering the venturi tube 22 is evenly distributed and avoiding uneven mixing caused by biased flow.

[0043] The Venturi tube 22 has a 1:3 diameter ratio, utilizing the Venturi effect to create negative pressure in the contraction section, drawing in compressed air. A pressure compensation plate, such as an elastic rubber diaphragm, is installed within the water inlet. This automatically adjusts the flow area in response to water pressure fluctuations, maintaining a stable air-to-water volume ratio of 1:10-1:15. After the air and water mix, the pressure is increased and reduced in the diffusion section, forming a uniform air-water mixture that is then piped to the main pipeline 31. The mixed water contains tiny bubbles, which reduce resistance along the pipeline and improve transport efficiency. The micro-impacts created by the bursting of these bubbles gently scour the inner wall of the pipeline, reducing the risk of impurities adhering to it.

[0044] Example 4 like Figure 1 As shown, a buffer tank 38 is provided between the main pipe 31 and the branch pipe 32 of the present invention, and an automatic exhaust valve 39 is provided at the top of the buffer tank 38.

[0045] Furthermore, it also includes a low-power drive unit 4, which includes a water pump 41, a supporting pipe 42 and a solar-powered lithium battery pack 43. The water pump 41 is connected in parallel with the branch pipe 32 through the supporting pipe 42, and a one-way valve is provided on the supporting pipe 42.

[0046] Specifically, in this embodiment, a buffer tank 38 and an automatic exhaust valve 39 achieve water pressure stabilization and gas management. The buffer tank 38 is divided into an air chamber and a water chamber. When the gas-water mixing and boosting module 2 is started or stopped, or when the solenoid valve 13 is rapidly opened and closed, the diaphragm of the buffer tank 38 absorbs the impact energy of the water flow by compressing the air chamber, preventing a sudden increase in pipeline pressure and a burst. The elastic deformation of the air chamber compensates for instantaneous flow changes in the pipeline, keeping the fluctuation amplitude of the water pressure at the inlet of the branch pipe 32 within ±5%. When gas accumulates in the tank, causing the water level to drop, the float drops with the water level, and the automatic exhaust valve 39 opens the exhaust port to release air. For example, in high-altitude areas or when the system is first started, a large amount of gas is released. When the water level rises, the float resets and closes the valve, preventing water overflow.

[0047] Solar energy is prioritized for charging, and the lithium battery pack powers water pump 41. A water pressure sensor 35 monitors the water pressure at the head of the gravity water supply pipe 33 in real time. When the measured value is less than 0.1 MPa, indicating insufficient gravity flow pressure, the control circuit activates water pump 41 to provide additional pressure, bringing the combined water pressure to 0.15-0.2 MPa. When the water pressure reaches ≥0.1 MPa, water pump 41 automatically shuts down, and the system switches back to gravity irrigation mode, minimizing energy consumption.

[0048] The present invention also employs an intelligent control module that collects soil moisture data at three levels (0-20cm, 20-40cm, and 40-60cm) from capacitive moisture sensors deployed in the field. The intelligent control module then connects to an edge computing gateway via a LoRa wireless communication module. The edge computing gateway, which has a built-in LSTM-GAN neural network model, activates drip irrigation when it detects that the moisture content falls below a preset value.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An ecological farm crop drip irrigation cultivation device, comprising a drip irrigation component (1), an air-water mixing and pressurizing module (2) and an infusion pipeline (3), characterized in that: The gas-water mixing and pressurizing module (2) is connected to the infusion pipeline (3), and the drip irrigation assembly (1) is installed below the infusion pipeline (3); The drip irrigation assembly (1) comprises a segmented tube body (11) and a drip irrigation head (12) arranged at the bottom end of the segmented tube body (11); the segmented tube bodies (11) are connected to each other via male and female snap fasteners, and scale lines are provided on the outer surface of the segmented tube body (11); the head end of the segmented tube body (11) is connected to a gravity water supply pipe (33) and is provided with a solenoid valve (13); the solenoid valve (13) is connected to a remote control unit via a communication line; The infusion pipeline (3) includes a main pipeline (31), a branch pipe (32) and a gravity water supply pipe (33); the main pipeline (31) is connected to the air-water mixing and pressurizing module (2); the main pipeline (31) is connected to the branch pipe (32) via a reducing multi-way joint; a metal corrugated hose (34) is connected between the branch pipe (32) and the gravity water supply pipe (33); a water pressure sensor (35) is installed inside the head end of the gravity water supply pipe (33); and an angle-adjustable drip irrigation bracket (36) is installed at the bottom end of the gravity water supply pipe (33); The angle-adjustable drip irrigation bracket (36) comprises a hinged seat (361) and a telescopic frame (362); the top end of the telescopic frame (362) is connected to the hinged seat (361); and the hinged seat (361) is connected to the gravity water supply pipe (33).

2. The ecological farm crop drip irrigation cultivation device according to claim 1, characterized in that: The drip irrigation head (12) is composed of a spiral flow channel (121), a filter flow channel (122) and a dripper (123) which are sequentially threaded together; The inner wall of the spiral flow channel (121) is provided with spiral guide protrusions distributed spirally along the axial direction of the pipeline, with a height of 0.5-1 mm and a pitch of 5-10 mm; A filter screen (124) is provided at the bottom end of the inner portion of the filtering channel (122), a spiral blade (125) is provided adjacent to and above the filter screen (124), a slag discharge pipe (126) is provided on the outer side of the filtering channel (122) and is in communication with the conveying path of the spiral blade (125), an upwardly inclined angle A is formed between the slag discharge pipe (126) and the outer wall of the filtering channel (122), and the value range of the angle A is: 70-80°; The surface of the dripper (123) is provided with a plurality of conical drip holes (127), wherein the upper diameter of the conical drip holes (127) is 1.2 mm and the lower diameter of the conical drip holes (127) is 0.8 mm; Silicone sealing rings are embedded in the threaded interfaces of the spiral flow channel (121), the filtering flow channel (122) and the dripper (123).

3. The ecological farm crop drip irrigation cultivation device according to claim 2, characterized in that: The pipe opening of the slag discharge pipe (126) is connected to a cover plate via an elastic member.

4. The ecological farm crop drip irrigation cultivation device according to claim 1, characterized in that: The air-water mixing and pressurizing module (2) comprises an air compression unit (21), a venturi tube (22) and a bubble regulating valve (23); The air compression unit (21) is an oil-free scroll compressor, and the output port is connected to the bubble regulating valve (23); The bubble regulating valve (23) is an electric proportional valve that controls the bubble density to 5-20 / cm 3 , bubble diameter 0.1-0.3mm; The air inlet end of the venturi tube (22) is connected to the bubble regulating valve (23), and the water inlet end of the venturi tube (22) is connected to the honeycomb diverter (24), and the single pore diameter of the honeycomb diverter (24) is 1-2 mm; The diameter ratio of the air inlet end to the water inlet end of the venturi tube (22) is 1:3, and a pressure compensation plate is provided inside the water inlet end to maintain a stable air-water mixing ratio, and air and water are mixed in a volume ratio of 1:10-1:15; The drainage end of the venturi tube (22) is connected to the main pipeline (31) through a pipeline.

5. The ecological farm crop drip irrigation cultivation device according to claim 1, characterized in that: A buffer tank (38) is provided between the main pipeline (31) and the branch pipe (32), and an automatic exhaust valve (39) is provided at the top end of the buffer tank (38).

6. An ecological farm crop drip irrigation cultivation device according to any one of claims 1 to 5, characterized in that: The invention also includes a low-power drive unit (4), the low-power drive unit (4) including a water pump (41), a supporting pipe (42), and a solar-powered lithium battery pack (43), the water pump (41) being connected in parallel with the branch pipe (32) via the supporting pipe (42), and a one-way valve being provided on the supporting pipe (42).

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