A radiation type micro sprinkler irrigation equipment for farmland water conservancy projects based on low-pressure pipelines

Abstract

The present invention relates to the field of irrigation technology, and in particular to a radiation type micro-sprinkler irrigation device for farmland water conservancy projects based on low-pressure pipelines, comprising a water supply pipe, a shunt pipe and a water pump, wherein micro-sprinkler irrigation nozzles are arranged at equal intervals on the shunt pipe, and the micro-sprinkler irrigation nozzles comprise a shell and a filter disc arranged in the shell, wherein the shell has an upward spray hole, and the filter disc divides the inner cavity of the shell into a buffer cavity connected to the shunt pipe and a liquid collecting cavity connected to the spray hole, and a drain device capable of rotating and connected to a local filter hole of the filter disc is arranged on the water-facing surface of the filter disc, a drain port capable of connecting to the drain device is also arranged on the shell, and a hydraulic torque output device connected to the drain device is arranged in the buffer cavity. The system significantly improves the operating efficiency of the sprinkler irrigation system through an automated sewage discharge and blockage clearing process, and does not require manual intervention at all, so that the system can respond quickly when blockage occurs, and maintain continuous operation of the sprinkler irrigation system.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation, and in particular to a radiation type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline. Background Art

[0002] In modern agriculture, the effective use of water resources is crucial. Although traditional irrigation methods, such as flooding and furrow irrigation, are widely used, they have obvious deficiencies in water resource utilization efficiency and irrigation uniformity, often leading to water resource waste and damage to soil structure. With the advancement of agricultural technology, micro-irrigation technology has gradually become the mainstream in farmland water conservancy projects, especially micro-sprinkler irrigation technology, which has attracted much attention due to its high efficiency, water saving and strong adaptability.

[0003] Micro sprinkler irrigation is an irrigation method that combines the advantages of sprinkler irrigation and drip irrigation. Water is evenly sprayed around the roots of crops in the form of fine droplets through the nozzle. Compared with traditional irrigation methods, micro sprinkler irrigation has many advantages:

[0004] 1. Efficient use of water resources: Micro-sprinkler irrigation delivers water directly to the roots of crops through quantitative water supply, reducing water evaporation and deep seepage, and effectively improving the utilization efficiency of water resources;

[0005] 2. Irrigation uniformity: The system achieves uniform water distribution by adjusting the nozzle flow and spraying angle, avoiding the problem of uneven water distribution in traditional irrigation;

[0006] 3. Strong adaptability: The micro-sprinkler irrigation system can be flexibly designed according to the different needs of terrain and crops. It is suitable for a variety of terrains such as plains and slopes and has strong adaptability.

[0007] As the water spraying component of the micro-spraying system, the structure of the micro-spraying head directly affects the operation of the micro-spraying. Therefore, in order to realize micro-spraying, it is necessary to provide a micro-spraying head. When the traditional water sprinkler is irrigated, the water is mixed with nutrient solution, and the water spray hole of the water sprinkler is small, so the sprinkler head is often blocked, which affects the efficiency of irrigation and reduces the growth rate of plants.

[0008] Chinese patent publication number CN106111371B discloses an anti-clogging backwashing adjustable micro-sprinkler, including a micro-sprinkler top cover, a water divider, a micro-sprinkler base and a hook joint, wherein the micro-sprinkler top cover has a cylindrical receiving chamber inside, the bottom of the receiving chamber has a water inlet hole, the water divider is placed in the receiving chamber, the water divider is provided with a pair of water troughs penetrating the water divider, and the end surface of the water divider has an inwardly concave water guide groove connected to the water trough. The inside of the micro-sprinkler base is provided with an adjustment slot hole penetrating itself, the inside of the hook joint has a water spraying channel, and the end of the hook joint is provided with a hemispherical adjustment joint block, which is placed in the adjustment slot hole.

[0009] When the water in the base of the micro sprinkler is blocked, it is necessary to push the inverted hook joint upwards. The hemispherical adjustment joint block of the inverted hook joint is separated from the drain hole in the base of the micro sprinkler upwards, so that the water is discharged from the large hole to prevent blockage. Although this design can prevent blockage to a certain extent, it also has obvious limitations. First of all, in large areas of farmland, micro sprinkler irrigation systems usually need to arrange a large number of micro sprinklers. When one or more micro sprinklers are blocked, farmers need to check them one by one and manually push the inverted hook joints to remove the blockage. This operation is not only time-consuming, but also due to the large number of micro sprinklers and their wide distribution, the manual unblocking process is inefficient. In addition, during the busy farming season, frequent manual unblocking operations will greatly increase labor intensity and maintenance costs.

[0010] In addition, manual unblocking may also lead to uneven irrigation results. In some cases, if the blockage is not discovered or handled in time, the crops in the affected area may not receive sufficient water supply, thus affecting their growth. In addition, during the unblocking process, improper operation may also cause damage to the micro sprinkler, further increasing the difficulty and cost of maintenance. Summary of the invention

[0011] In view of the above problems, a radiation micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline is provided. By arranging a drainer and a hydraulic torque outputter in the shell, when sprinkler liquid flows in the shell, the hydraulic torque outputter can drive the drainer to rotate at the bottom of the filter disk, thereby guiding the filtered sprinkler liquid in the shell to backwash the filter disk, and discharge the cleaned waste liquid through the drain port, thereby solving the problem that the existing sprinkler head needs manual guidance for clearing blockage.

[0012] In order to solve the problems of the prior art, the present invention provides a radiation type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline, comprising a water supply pipe, a diverter pipe and a water pump, one end of the water supply pipe is connected to the water outlet of the water pump, the water inlet of the water pump is extended to the water reservoir through a pipeline, the diverter pipe is arranged in the farmland, one end of the diverter pipe is connected to the water supply pipe, micro-sprinkler irrigation nozzles are arranged on the diverter pipe at equal intervals, the micro-sprinkler irrigation nozzles comprise a shell, and a filter disc arranged in the shell, the shell has an upward spray hole, the filter disc will The inner cavity of the shell is divided into a buffer cavity connected to the shunt pipe, and a liquid collecting cavity connected to the injection hole. The water-facing surface of the filter disc is provided with a drain that can rotate and is connected to the local filter holes of the filter disc. The shell is also provided with a drain port that can be connected to the drain. A hydraulic torque output device connected to the drain is provided in the buffer cavity. When the sprinkler liquid flows from the buffer cavity to the liquid collecting cavity, the hydraulic torque output device drives the drain to rotate on the water-facing surface of the filter disc and guides the liquid that passes through the filter disc from the liquid collecting cavity to be discharged outward through the drain port.

[0013] Preferably, the hydraulic torque outputter includes a driving shaft coaxially arranged in the buffer cavity, the top end of the driving shaft passes through the filter disc and is rotatably connected thereto, the circumferential surface of the driving shaft is provided with arc-shaped guide vanes distributed along its circumference, the outer edges of the arc-shaped guide vanes are gap-matched with the inner walls of the buffer cavity, the drainer is coaxially and fixedly arranged on the driving shaft, and when the sprinkler fluid flows along the axial direction of the driving shaft and acts on the arc-shaped guide vanes, the arc-shaped guide vanes drive the driving shaft to rotate in the buffer cavity.

[0014] Preferably, the buffer chamber includes an upper chamber and a lower chamber coaxially arranged, the diameter of the lower chamber is smaller than the diameter of the upper chamber, the outer edge of the arc-shaped guide plate is gap-matched with the inner wall of the lower chamber, the diameter of the lower chamber is smaller than the diameter of the diverter pipe, and when the sprinkler irrigation liquid flows from the diverter pipe to the lower chamber, the flow rate of the sprinkler irrigation liquid increases.

[0015] Preferably, the drain device includes an inner ring coaxially arranged on the rotating shaft, and an outer ring coaxially arranged outside the inner ring, a collecting seat extending radially therefrom is arranged between the outer circumferential surface of the inner ring and the inner circumferential surface of the outer ring, the collecting seat has a collecting groove with an opening at the top, the top of the collecting groove is clearance-matched with the bottom end of the filter disc, and a discharge port connected to the collecting groove is also arranged on the outer ring, and the discharge port faces the inner wall of the shell.

[0016] Preferably, the shell is provided with a bracket fixedly connected thereto, the bracket is provided with an adjusting bolt, the bottom end of the adjusting bolt faces the spray hole of the shell, and the sprinkler liquid sprayed from the spray hole is guided by the bottom end of the adjusting bolt and then spread out to the surrounding side.

[0017] Preferably, the adjusting bolt is threadedly connected to the bracket, the adjusting bolt is coaxially arranged with the injection hole, a drainage block is arranged at the bottom end of the adjusting bolt, the diameter of the drainage block gradually increases from top to bottom, and the bottom surface of the drainage block is provided with drainage grooves distributed along its circumference, the drainage grooves extend radially along the drainage block, and the sprinkler liquid sprayed from the injection hole is guided by the drainage grooves and then sprayed radially to the circumference.

[0018] Preferably, a water pressure plug is provided on the inner wall of the buffer chamber, and the water pressure plug is located between the discharge port and the sewage outlet. When the water pressure in the buffer chamber is greater than a predetermined value, the water pressure plug opens the sewage outlet relative to the discharge port, and the liquid passing through the filter plate from the liquid collecting chamber is discharged outward through the collecting trough, the discharge port and the sewage outlet in sequence.

[0019] Preferably, the water pressure plugger includes a fixed sleeve coaxially arranged in the buffer chamber, and a sliding sleeve coaxially slidably arranged between the fixed sleeve and the inner wall of the buffer chamber, an annular sealing plug is arranged at the bottom end of the sliding sleeve, an inner sealing ring is arranged between the inner circumferential surface of the annular sealing plug and the outer circumferential surface of the fixed sleeve, an outer sealing ring is arranged between the outer circumferential surface of the annular sealing plug and the inner wall of the buffer chamber, an elastic element is arranged at the bottom end of the annular sealing plug, the top end of the sliding sleeve abuts against the outer side of the bottom end of the filter disc, the top end of the annular sealing plug forms a pressure chamber connected to the buffer chamber, when the filter disc is blocked, the pressure in the buffer chamber increases to increase the pressure in the pressure chamber, the annular sealing plug overcomes the elastic force of the elastic element and moves downward to connect the sewage outlet and the discharge outlet, an upper sealing ring is arranged on the outer side of the bottom end of the filter disc, and in the initial state, the sliding sleeve abuts against the upper sealing ring.

[0020] Preferably, the bottom surface of the collecting trough gradually slopes downward from the inside to the outside, the scraper wall on one side of the collecting trough is higher than the scraper wall on the other side, the top of the scraper wall on the high side of the collecting trough fits the filter plate, and the top surfaces of the scraper walls on both sides of the collecting trough are inclined surfaces.

[0021] Preferably, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are coaxially threadedly screwed together, a stepped groove is arranged on the inner circumferential surface of the upper shell, the filter disc is arranged in the stepped groove, and the sewage outlets are distributed on the upper shell along the circumferential direction.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows: when the sprinkler irrigation equipment of the present application is in operation, the sprinkler irrigation liquid will first pass through the filter disc. If impurities gradually accumulate on the water-facing surface of the filter disc and become clogged, the liquid pressure will rapidly increase on the water-facing surface. This increase in pressure will trigger the opening mechanism of the water pressure plug, so that a channel is formed between the drain port and the drain device. When the drain port is opened, the cleaned waste liquid also has an outlet for discharge. At the same time, the flow of the sprinkler irrigation liquid drives the operation of the hydraulic torque output device, and the hydraulic torque output device can use the energy of the flow of the sprinkler irrigation liquid to drive the drain device to rotate at the bottom of the filter disc. This rotation not only plays a role in automatically cleaning the filter disc, but also can guide the sprinkler irrigation liquid for backwashing, so that the impurities deposited on the surface of the filter disc are effectively cleaned and finally discharged to the outside of the shell through the drain port.

[0023] This design solves the common blockage problem in traditional sprinkler head systems, especially in large-scale farmland. Frequent blockages often require a lot of manpower to clean up. This system significantly improves the operating efficiency of the sprinkler system through automated sewage discharge and blockage clearing processes. First, the increased pressure on the water surface of the filter disc will automatically trigger the switching action of the water pressure plug, without the need for human intervention. This enables the system to respond quickly when blockage occurs and maintain the continuous operation of the sprinkler system.

[0024] Secondly, the application of the hydraulic torque output device enables the drainer to continuously rotate and clean the filter disc, thereby ensuring the long-term patency of the filter disc. This backwash mechanism operates without interfering with normal sprinkler irrigation operations, avoiding irrigation interruptions caused by manual clearing and ensuring that crops can continue to receive a uniform supply of water.

[0025] Moreover, the water pressure plug can prevent the sprinkler water from spraying out through the drain outlet when the filter disc is filtering normally, thereby wasting water resources. When the filter disc is blocked and backwashed for a period of time, the water pressure at the bottom of the filter disc returns to normal, allowing the water pressure plug to re-block the drain outlet and the drain outlet until the filter disc is blocked again and then opened. This sewage discharge method ensures the clean state of the filter disc, so that the filtered liquid can be discharged in time under the action of water pressure, which helps to maintain the overall stability of the system and continuous operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on low-pressure pipelines;

[0027] Figure 2 It is a stereoscopic diagram of a micro-sprinkler nozzle in a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline;

[0028] Figure 3 It is a three-dimensional cross-sectional view of a micro-sprinkler nozzle in a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline;

[0029] Figure 4 It is a schematic diagram of a micro-sprinkler in a radiation-type micro-sprinkler in a farmland water conservancy project based on a low-pressure pipeline under normal sprinkler irrigation conditions;

[0030] Figure 5 yes Figure 4 A local enlarged view of point A;

[0031] Figure 6 It is a schematic diagram of a micro-sprinkler head in a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline when cleaning a filter disc;

[0032] Figure 7 It is a partial three-dimensional exploded view of a micro-sprinkler nozzle in a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline;

[0033] Figure 8 It is a schematic diagram of a sewage discharger of a micro-sprinkler nozzle in a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline;

[0034] Fig. 9It is a schematic diagram of a drainer and a filter plate of a micro-sprinkler nozzle in a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline in a first perspective;

[0035] Fig.10 It is a schematic diagram of a drainer and a filter disc of a micro-sprinkler nozzle in a radiation-type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline under a second viewing angle;

[0036] Fig.11 The present invention is a three-dimensional exploded view of a hydraulic plugger of a micro-sprinkler nozzle in a radiation-type micro-sprinkler irrigation device of a farmland water conservancy project based on a low-pressure pipeline.

[0037] The numbers in the figure are: 11, water supply pipe; 12, diverter pipe; 13, water pump; 14, micro sprinkler nozzle; 2, shell; 21, spray hole; 22, buffer chamber; 221, upper chamber; 222, lower chamber; 23, liquid collecting chamber; 24, sewage outlet; 25, bracket; 26, adjustment bolt; 27, drainage block; 271, drainage groove; 28, upper shell; 29, lower shell; 3, filter plate; 4, sewage discharger; 4 1. Inner ring; 42. Outer ring; 421. Discharge port; 43. Collecting seat; 431. Collecting tank; 5. Hydraulic torque output device; 51. Drive shaft; 511. Arc guide vane; 6. Hydraulic plug; 61. Fixed sleeve; 62. Sliding sleeve; 621. Annular sealing plug; 622. Inner sealing ring; 623. Outer sealing ring; 63. Elastic element; 64. Pressure chamber; 65. Upper sealing ring. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] like Figure 1 , Figure 2 and Figure 3As shown, the present application provides: a radiation type micro-sprinkler irrigation equipment for farmland water conservancy projects based on low-pressure pipelines, including a water supply pipe 11, a shunt pipe 12 and a water pump 13, one end of the water supply pipe 11 is connected to the water outlet of the water pump 13, and the water inlet of the water pump 13 extends to the reservoir through a pipeline, the shunt pipe 12 is arranged in the farmland, one end of the shunt pipe 12 is connected to the water supply pipe 11, and micro-sprinkler nozzles 14 are evenly spaced on the shunt pipe 12, and the micro-sprinkler nozzles 14 include a shell 2, and a filter disc 3 arranged in the shell 2, the shell 2 has an upward spray hole 21, and the filter disc 3 sprays the shell 2 The inner cavity is divided into a buffer cavity 22 connected to the shunt pipe 12, and a liquid collecting cavity 23 connected to the injection hole 21. The water-facing surface of the filter disc 3 is provided with a drain 4 that can rotate and is connected to the local filter holes of the filter disc 3. The shell 2 is also provided with a drain port 24 that can be connected to the drain 4. A hydraulic torque output device 5 connected to the drain 4 is provided in the buffer cavity 22. When the sprinkler liquid flows from the buffer cavity 22 to the liquid collecting cavity 23, the hydraulic torque output device 5 drives the drain 4 to rotate on the water-facing surface of the filter disc 3 and guides the liquid that passes through the filter disc 3 from the liquid collecting cavity 23 to be discharged outward through the drain port 24.

[0040] The micro-sprinkler irrigation equipment includes a water supply pipe 11, a diversion pipe 12 and a water pump 13, which is designed to provide efficient and uniform irrigation for large areas of farmland. One end of the water supply pipe 11 is connected to the water outlet of the water pump 13 to ensure a stable supply of water, while the water inlet of the water pump 13 is extended to the reservoir through a pipeline to ensure that the water source is sufficient and can be continuously supplied. The diversion pipe 12 is arranged in the farmland to evenly distribute water to each irrigation area. One end of the diversion pipe 12 is connected to the water supply pipe 11 to ensure that water can smoothly enter each diversion pipe 12, thereby further expanding to the irrigation network of the entire farmland. Micro-sprinkler nozzles 14 are evenly spaced on the diversion pipe 12. These micro-sprinkler nozzles 14 are key components of the system, ensuring that water can be evenly sprayed around the crops.

[0041] The micro-sprinkler nozzle 14 includes a shell 2, and a filter disc 3 is arranged inside the shell 2. The filter disc 3 divides the inner cavity of the shell 2 into two functionally different areas. The first area is a buffer chamber 22, which is directly connected to the diverter pipe 12 and is used to temporarily store the water flow entering from the diverter pipe 12. The second area is a liquid collecting chamber 23, which is connected to the upward spray hole 21. The design of the spray hole 21 ensures that the water can be evenly sprayed on the surface of the farmland. A rotatable drainer 4 is specially designed on the water-facing surface of the filter disc 3, and the drainer 4 is connected to the local filter holes of the filter disc 3. The purpose of this design is that when the water flows through the filter disc 3, the filter disc 3 can effectively block impurities, but at the same time allow clean water to enter the liquid collecting chamber 23 to prevent impurities from clogging the spray hole 21.

[0042] The housing 2 is also provided with a drain port 24, which is connected to the drain 4 to ensure that the impurities on the filter disc 3 can be discharged smoothly when needed. In order to realize the automatic cleaning function, a hydraulic torque output device 5 connected to the drain 4 is also provided in the buffer chamber 22. When the sprinkler liquid flows from the buffer chamber 22 to the liquid collecting chamber 23, the hydraulic torque output device 5 uses the power of the water flow to drive the drain 4 to rotate on the water-facing surface of the filter disc 3. Through this rotation action, and in conjunction with the backwashing of the filter disc 3 by the water in the liquid collecting chamber 23, the drain 4 can effectively guide the liquid through the filter holes of the filter disc 3 and discharge the accumulated impurities through the drain port 24. This process ensures the continuous cleaning of the filter disc 3 and reduces the risk of system blockage, thereby ensuring the long-term and efficient operation of the entire micro-sprinkler irrigation system.

[0043] The present application realizes the self-cleaning of the micro-sprinkler nozzle 14 by arranging a drainer 4 and a hydraulic torque outputter 5 in the housing 2. When the sprinkler liquid flows in the housing 2, the hydraulic torque outputter 5 can convert the flow energy of the liquid into mechanical energy to drive the drainer 4 to rotate at the bottom of the filter disc 3. Through this rotation action, the sprinkler liquid can not only effectively pass through the filter disc 3, but also produce a backwashing effect when flowing through, thereby automatically cleaning the filter disc 3. This design utilizes the energy of the liquid flow itself to realize the self-maintenance function of the filtration system.

[0044] Specifically, when the sprinkler liquid flows, the hydraulic torque output 5 can drive the drain 4 to continuously rotate and clean the filter disc 3. Since the filter disc 3 is prone to accumulate impurities and particulate matter after long-term use, the traditional system often requires manual regular disassembly and cleaning of the filter. In the design of this automatic backwashing system, the cleaning of the filter disc 3 can be carried out synchronously with the flow of the sprinkler liquid, avoiding the need for human intervention. After backwashing, the waste liquid will be discharged from the system through the drain port 24, thereby keeping the filter disc 3 unobstructed and further ensuring the continuous and stable operation of the sprinkler irrigation equipment.

[0045] This automated sewage and backwashing design not only solves the problem of blockage in traditional sprinkler head systems that requires manual clearing, but also significantly improves the maintenance efficiency of sprinkler irrigation equipment. When faced with blockage problems, traditional sprinkler irrigation systems usually need to interrupt system operation for manual disassembly, cleaning, and reinstallation. This not only consumes a lot of time and human resources, but also has a certain impact on the continuity of agricultural production. Especially during the busy farming season, frequent manual maintenance will increase the workload of farmers and affect the overall effect of irrigation.

[0046] In contrast, the micro-sprinkler nozzle 14 in the present application can significantly reduce the frequency of manual maintenance and improve the overall operating efficiency of the equipment. When the impurities in the filter disc 3 are cleaned in time, the risk of clogging of the sprinkler head will be greatly reduced, which not only extends the service life of the equipment, but also ensures the smooth progress of irrigation operations. More importantly, the automated sewage discharge design can be carried out without interfering with normal sprinkler irrigation operations, which means that the continuity of the system is effectively guaranteed and downtime caused by manual clearing is avoided.

[0047] like Figure 4 , Fig. 9 and Fig.10 As shown, the hydraulic torque output device 5 includes a driving shaft 51 coaxially arranged in the buffer chamber 22, the top end of the driving shaft 51 passes through the filter disc 3 and is rotatably connected thereto, and the circumferential surface of the driving shaft 51 is provided with arc-shaped guide vanes 511 distributed along its circumference, and the outer edges of the arc-shaped guide vanes 511 are gap-matched with the inner wall of the buffer chamber 22, and the drainer 4 is coaxially and fixedly arranged on the driving shaft 51. When the sprinkler liquid flows along the axial direction of the driving shaft 51 and acts on the arc-shaped guide vanes 511, the arc-shaped guide vanes 511 drive the driving shaft 51 to rotate in the buffer chamber 22.

[0048] In the design of the hydraulic torque output device 5, the drive shaft 51 is coaxially arranged in the buffer chamber 22, and the top end of the drive shaft 51 passes through the filter disc 3 and is rotatably connected thereto, ensuring its key role in the sprinkler irrigation system. The circumferential surface of the drive shaft 51 is provided with arc guide vanes 511 distributed along the circumference. The design of these arc guide vanes 511 not only takes into account the flow characteristics of the water flow, but also maintains a precise clearance fit with the inner wall of the buffer chamber 22, so as to achieve the best rotation effect under the action of hydraulic force. The drain 4 is coaxially fixed on the drive shaft 51, so that the rotation and cleaning functions of the entire system can operate efficiently and in coordination.

[0049] When the sprinkler irrigation liquid flows along the axial direction of the driving shaft 51 and acts on these arc-shaped guide plates 511, the guide plates use the energy of the water flow to drive the driving shaft 51 to generate a rotational motion in the buffer chamber 22. Through this rotation, the driving shaft 51 can continuously drive the drainer 4 to rotate on the water-facing surface of the filter disc 3. In the process of not affecting the upward flow of water from bottom to top, the drainer 4 is connected with all positions of the filter disc 3 in a rotating state, so that the clean water in the liquid collecting chamber 23 passing through the filter disc 3 can be discharged outward through the drainer 4 and the drain port 24. This process ensures the smooth flow of the filter disc 3 and the efficient operation of the sprinkler irrigation system, thereby effectively solving the problem of reduced irrigation efficiency caused by blockage in traditional sprinkler irrigation equipment.

[0050] like Figure 4As shown, the buffer chamber 22 includes an upper chamber 221 and a lower chamber 222 which are coaxially arranged. The diameter of the lower chamber 222 is smaller than that of the upper chamber 221. The outer edge of the arc-shaped guide plate 511 is gap-matched with the inner wall of the lower chamber 222. The diameter of the lower chamber 222 is smaller than that of the diverter pipe 12. When the sprinkler liquid flows from the diverter pipe 12 to the lower chamber 222, the flow rate of the sprinkler liquid increases.

[0051] The buffer chamber 22 includes a coaxially arranged upper chamber 221 and a lower chamber 222 structure, wherein the diameter of the lower chamber 222 is smaller than the diameter of the upper chamber 221. Such a design not only optimizes the path of the water flow, but also effectively controls the flow rate of the water flow. The arc-shaped guide vane 511 is arranged in the lower chamber 222, and its outer edge maintains a precise clearance fit with the inner wall of the lower chamber 222. Such a clearance design helps the guide vane to produce a better rotation effect under the action of the water flow, while ensuring that the drive shaft 51 can rotate smoothly. The diameter of the lower chamber 222 is smaller than the diameter of the diverter 12. This structural change means that when the sprinkler liquid flows from the wider diverter 12 into the narrower lower chamber 222, the flow rate of the sprinkler liquid will naturally increase. This increase in flow rate not only improves the working efficiency of the hydraulic torque outputter 5, but also enhances the driving effect of the arc-shaped guide vane 511 on the drive shaft 51, thereby achieving a more efficient rotation of the sewage discharger 4. This design controls the geometric shape and flow rate distribution of the buffer chamber 22 so that the entire sprinkler system can automatically adapt to different fluid dynamic conditions during operation, ensuring timely cleaning of the filter disc 3 and normal operation of the sewage discharge function, effectively avoiding blockage problems caused by impurity accumulation, thereby greatly improving the irrigation effect and service life of the entire micro-sprinkler irrigation equipment.

[0052] like Figure 7 and Figure 8 As shown, the drain device 4 includes an inner ring 41 coaxially arranged on the rotating shaft, and an outer ring 42 coaxially arranged outside the inner ring 41, and a collecting seat 43 extending radially is arranged between the outer circumferential surface of the inner ring 41 and the inner circumferential surface of the outer ring 42, and the collecting seat 43 has a collecting groove 431 with an opening at the top, and the top of the collecting groove 431 is gap-fitted with the bottom end of the filter disc 3, and the outer ring 42 is also provided with a discharge port 421 connected to the collecting groove 431, and the discharge port 421 faces the inner wall of the shell 2.

[0053] The structure of the sewage discharger 4 adopts a coaxially arranged inner ring 41 and an outer ring 42. The inner ring 41 is fixed on the rotating shaft, and the outer ring 42 is coaxially arranged on the outside of the inner ring 41 to ensure that the entire system remains stable during rotation. A collecting seat 43 extending radially along the inner ring 41 is designed between the outer circumferential surface of the inner ring 41 and the inner circumferential surface of the outer ring 42. This collecting seat 43 is a key sewage discharge component in the system and can effectively collect impurities. The collecting seat 43 has a collecting groove 431 with an opening at the top. This collecting groove 431 maintains a precise clearance fit with the bottom end of the filter disc 3. When the system is running, the impurities backwashed downward by the filter disc 3 will enter the collecting groove 431. The outer ring 42 is also designed with a discharge port 421 connected to the collection groove 431. This discharge port 421 faces the inner wall of the shell 2 to ensure that the collected impurities can be smoothly discharged from the shell 2 through the discharge port 421. Through this design, the drainer 4 can effectively remove impurities on the surface of the filter disc 3 during system operation, avoiding system blockage caused by accumulation of impurities, thereby ensuring continuous and efficient operation of the sprinkler irrigation equipment.

[0054] like Figure 1 As shown, the housing 2 is provided with a bracket 25 fixedly connected thereto, and the bracket 25 is provided with an adjusting bolt 26, the bottom end of the adjusting bolt 26 faces the spray hole 21 of the housing, and the sprinkler liquid sprayed from the spray hole 21 is guided by the bottom end of the adjusting bolt 26 and then spread out to the surrounding side.

[0055] A bracket 25 is fixedly connected to the housing 2, and an adjusting bolt 26 is provided on the bracket 25. The adjusting bolt 26 is responsible for accurately controlling the spray direction of the sprinkler liquid. The bottom end of the adjusting bolt 26 faces the spray hole 21 on the housing. Through the action of the adjusting bolt 26, the sprinkler liquid sprayed from the spray hole 21 can be guided to a specific direction. After being guided by the bottom end of the adjusting bolt 26, the sprinkler liquid spreads to the surrounding side and sprays out evenly, realizing effective control of the sprinkler irrigation range and direction. Through this design, the sprinkler irrigation system can flexibly adapt to different irrigation needs, which not only improves the coverage of sprinkler irrigation, but also ensures the efficient use of water resources. The application of the adjusting bolt 26 allows the user to adjust the spray angle according to the specific irrigation conditions, thereby optimizing the sprinkler irrigation effect, improving the efficiency and uniformity of farmland irrigation, and further improving the benefits of agricultural production.

[0056] like Figure 1 and Figure 4 As shown, the adjusting bolt 26 is threadedly connected to the bracket 25, the adjusting bolt 26 is coaxially arranged with the injection hole 21, a drainage block 27 is arranged at the bottom end of the adjusting bolt 26, the diameter of the drainage block 27 gradually increases from top to bottom, and the bottom surface of the drainage block 27 is provided with drainage grooves 271 distributed along the circumference thereof, the drainage grooves 271 extend along the radial direction of the drainage block 27, and the sprinkler liquid sprayed from the injection hole 21 is guided by the drainage grooves 271 and then sprayed radially to the circumference.

[0057] The adjusting bolt 26 is fixed to the bracket 25 by threaded connection, which ensures the stability and accuracy of the adjusting bolt 26 during use. The adjusting bolt 26 is coaxially arranged with the injection hole 21. This design allows the sprinkler liquid to flow out through the adjusting bolt 26 with minimal energy loss. The bottom end of the adjusting bolt 26 is equipped with a drainage block 27, the diameter of which gradually increases from top to bottom. Such a shape design effectively guides the flow of the sprinkler liquid. The bottom surface of the drainage block 27 is distributed with a plurality of drainage grooves 271 arranged along its circumference. These drainage grooves 271 extend along the radial direction of the drainage block 27, so that the sprinkler liquid can be sprayed from the injection hole 21 through the drainage grooves 271 and diffused radially to the surrounding side. Such a design not only ensures that the sprinkler liquid is evenly distributed in the sprinkler irrigation area, but also improves the coverage and efficiency of the sprinkler irrigation system. By adjusting the design parameters of the drainage block 27, the sprinkler irrigation effect can be further optimized to meet the irrigation needs of different crops, thereby improving agricultural production efficiency.

[0058] like Figure 4 and Figure 6 As shown, the inner wall of the buffer chamber 22 is provided with a water pressure plug 6, and the water pressure plug 6 is located between the discharge port 421 and the sewage outlet 24. When the water pressure in the buffer chamber 22 is greater than a predetermined value, the water pressure plug 6 opens the sewage outlet 24 relative to the discharge port 421, and the liquid passing through the filter disc 3 from the liquid collecting chamber 23 is discharged outward through the collecting groove 431, the discharge port 421 and the sewage outlet 24 in sequence.

[0059] A hydraulic plug 6 is installed on the inner wall of the buffer cavity 22. When the filter disc 3 is filtering normally, the hydraulic plug 6 is located between the discharge port 421 and the sewage outlet 24 to prevent water from flowing out directly through the sewage outlet 24. When the filter disc 3 is blocked, the water pressure in the buffer cavity 22 at the bottom of the filter disc 3 exceeds a predetermined value, and the hydraulic plug 6 automatically opens the sewage outlet 24 relative to the discharge port 421 to allow liquid to be discharged from the system. This design ensures that after the liquid passes through the filter disc 3, it first enters the collection tank 431 and flows to the sewage outlet 24 through the discharge port 421, and finally is smoothly discharged from the system. Through this water pressure sensing mechanism, when the filter disc 3 has a normal filtering function, it can prevent the sprinkler water from spraying out through the drain outlet 24, thereby causing the problem of wasting water resources. When the filter disc 3 is blocked and then backwashed for a period of time, the water pressure at the bottom of the filter disc 3 returns to normal, so that the water pressure plug 6 re-blocks the drain outlet 421 and the drain outlet 24 until the filter disc 3 is blocked again and then opened. This sewage discharge method ensures the clean state of the filter disc 3, so that the filtered liquid can be discharged in time under the action of water pressure, which helps to maintain the overall stability and continuous operation efficiency of the system.

[0060] The collecting groove 431 corresponds to only a part of the filter disc 3, because the collecting groove 431 can rotate at the bottom of the filter disc 3, when the collecting groove 431 is connected with the local filter holes of the filter disc 3, the impurities in the local filter holes of the filter disc 3 will be backwashed into the collecting groove 431, and in the process of the collecting groove 431 rotating relative to the filter disc 3, the impurities in all the filter holes of the filter disc 3 can enter the collecting groove 431 and flow to the sewage outlet 24 through the discharge port 421, and the liquid in the buffer cavity passes through the space on both sides of the collecting seat 43, and then passes through the filter disc 3 for filtration, and the scraper wall on one side of the collecting groove 431 is lower than the scraper wall on the other side, and the top of the higher scraper wall fits the filter disc 3. The top surfaces of the scraper walls on both sides of the collecting groove 431 are inclined, and the scraper wall on one side can guide the filter to enter, and the scraper wall on the other side can improve the scraping effect of the filter disc 3.

[0061] like Figure 5 and Fig.11 As shown, the hydraulic plug 6 includes a fixed sleeve 61 coaxially arranged in the buffer chamber 22, and a sliding sleeve 62 coaxially slidably arranged between the fixed sleeve 61 and the inner wall of the buffer chamber 22, an annular sealing plug 621 is arranged at the bottom end of the sliding sleeve 62, an inner sealing ring 622 is arranged between the inner circumferential surface of the annular sealing plug 621 and the outer circumferential surface of the fixed sleeve 61, an outer sealing ring 623 is arranged between the outer circumferential surface of the annular sealing plug 621 and the inner wall of the buffer chamber 22, and an annular sealing plug 621 is arranged at the bottom end. The elastic element 63 and the top end of the sliding sleeve 62 abut against the outer side of the bottom end of the filter disc 3, and the top end of the annular sealing plug 621 forms a pressure chamber 64 connected with the buffer chamber 22. When the filter disc 3 is blocked, the pressure of the buffer chamber 22 increases to increase the pressure of the pressure chamber 64. The annular sealing plug 621 overcomes the elastic force of the elastic element 63 and moves downward to connect the sewage outlet 24 and the outlet 421. An upper sealing ring 65 is provided on the outer side of the bottom end of the filter disc 3. In the initial state, the sliding sleeve 62 abuts against the upper sealing ring 65.

[0062] The hydraulic plug 6 is composed of a fixed sleeve 61 coaxially arranged inside the buffer chamber 22, and a sliding sleeve 62 coaxially arranged between the fixed sleeve 61 and the inner wall of the buffer chamber 22, and an annular sealing plug 621 is installed at the bottom end of the sliding sleeve 62. An inner sealing ring 622 is arranged between the inner circumference of the annular sealing plug 621 and the outer circumference of the fixed sleeve 61, and an outer sealing ring 623 is arranged between the outer circumference of the annular sealing plug 621 and the inner wall of the buffer chamber 22, thereby forming an effective sealing structure. In addition, an elastic element 63 is also arranged at the bottom end of the annular sealing plug 621, and the existence of this elastic element 63 enables the sliding sleeve 62 to move up and down under pressure. The top of the sliding sleeve 62 abuts against the outside of the bottom of the filter disc 3, and the top of the annular sealing plug 621 forms a pressure chamber 64 connected to the buffer chamber 22. When the filter disc 3 is blocked, the pressure inside the buffer chamber 22 rises accordingly. This pressure change increases the pressure in the pressure chamber 64, thereby forcing the annular sealing plug 621 to overcome the reaction force of the elastic element 63 and move downward, thereby connecting the sewage outlet 24 and the discharge outlet 421, so that the sewage discharge process can be realized. An upper sealing ring 65 is also provided on the outside of the bottom end of the filter disc 3. In the initial state, the sliding sleeve 62 is tightly abutted against this upper sealing ring 65 to ensure the sealing performance of the system.

[0063] like Figure 5 As shown, the bottom surface of the collecting groove 431 gradually slopes downward from the inside to the outside.

[0064] The bottom surface of the collection tank 431 is designed to gradually slope downward from the inside to the outside. This slope structure helps to effectively collect and discharge the liquid in the collection tank 431. Through this design, the liquid can naturally flow to the outer edge of the collection tank 431 under the action of gravity, thereby avoiding the stagnation or accumulation of the liquid in the tank. This not only improves the efficiency of liquid discharge, but also reduces the amount of residual liquid in the tank, which helps to keep the system clean and operate smoothly.

[0065] like Figure 7 As shown, the shell 2 includes an upper shell 28 and a lower shell 29, which are coaxially threaded together. A stepped groove is provided on the inner circumferential surface of the upper shell 28, and the filter disc 3 is provided in the stepped groove. The sewage outlet 24 is distributed on the upper shell 28 along the circumferential direction.

[0066] The housing 2 is composed of an upper shell 28 and a lower shell 29, which are fixed together by coaxial threaded connection. A stepped groove is designed on the inner circumference of the upper shell 28, and the filter disc 3 is installed in the stepped groove to ensure its stable position and effective filtering function. The sewage outlets 24 are evenly distributed along the circumference of the upper shell 28. This design not only facilitates the discharge of liquid, but also ensures the smooth discharge process, while also improving the sealing and stability of the overall structure, so that the system can more effectively handle fluids when working.

[0067] When the sprinkler system of the present application is in operation, the sprinkler liquid will first pass through the filter disc 3. If impurities gradually accumulate on the water-facing surface of the filter disc 3 and become clogged, the liquid pressure will increase rapidly on the water-facing surface. This increase in pressure will trigger the opening mechanism of the water pressure plug 6, causing the sliding sleeve 62 to slide downward, and a channel will be formed between the sewage outlet 24 and the sewage outlet 4, that is, the water pressure sensing mechanism is realized. When the sewage outlet 24 is opened, the waste liquid generated by the backwashing of the filter disc 3 has an outlet for discharge. At the same time, the flow of the sprinkler liquid drives the operation of the hydraulic torque output device 5, and the arc-shaped guide blades The drive shaft 51 and the drain device 4 are driven to rotate at the bottom of the filter disc 3. This rotation not only automatically cleans the filter disc 3, but also guides the sprinkler liquid for backwashing, so that the impurities deposited on the surface of the filter disc 3 are effectively cleaned and finally discharged to the outside of the shell 2 through the drain port 24. When the filter disc 3 fully restores the filtering function, the pressure at the bottom of the filter disc 3 is restored, so that the sliding sleeve 62 is reset under the action of the elastic element 63, thereby blocking the drain port 24 and the discharge port 421, thereby preventing the sprinkler liquid from being unable to be discharged to the outside through the drain port 24.

[0068] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A radiation type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline, comprising a water supply pipe (11), a shunt pipe (12) and a water pump (13), wherein one end of the water supply pipe (11) is connected to a water outlet of the water pump (13), and a water inlet of the water pump (13) is extended to a reservoir through a pipeline, and the shunt pipe (12) is arranged in a farmland, and one end of the shunt pipe (12) is connected to the water supply pipe (11), characterized in that: Micro-sprinkler nozzles (14) are arranged at equal intervals on the shunt pipe (12). The micro-sprinkler nozzles (14) include a housing (2) and a filter disc (3) arranged in the housing (2). The housing (2) has an upwardly directed spray hole (21). The filter disc (3) divides the inner cavity of the housing (2) into a buffer cavity (22) connected to the shunt pipe (12) and a liquid collecting cavity (23) connected to the spray hole (21). The water-facing surface of the filter disc (3) is provided with a liquid collecting cavity (23) that can rotate and partially connect to the filter disc (3). A drain device (4) is connected to the filter hole, and a drain port (24) capable of being connected to the drain device (4) is also provided on the housing (2). A hydraulic torque output device (5) connected to the drain device (4) is provided in the buffer chamber (22). When the sprinkler liquid flows from the buffer chamber (22) to the liquid collecting chamber (23), the hydraulic torque output device (5) drives the drain device (4) to rotate on the water-facing surface of the filter disc (3) and guides the liquid passing through the filter disc (3) from the liquid collecting chamber (23) to be discharged outward through the drain port (24); The hydraulic torque output device (5) comprises a driving shaft (51) coaxially arranged in the buffer chamber (22); the top end of the driving shaft (51) penetrates the filter disc (3) and is rotatably connected thereto; arc-shaped guide vanes (511) distributed along the circumference of the driving shaft (51) are arranged on the circumferential surface thereof; the outer edges of the arc-shaped guide vanes (511) are gap-matched with the inner walls of the buffer chamber (22); the sewage discharger (4) is coaxially fixedly arranged on the driving shaft (51); when the sprinkler fluid flows along the axial direction of the driving shaft (51) and acts on the arc-shaped guide vanes (511), the arc-shaped guide vanes (511) drive the driving shaft (51) to rotate in the buffer chamber (22); The sewage discharger (4) comprises an inner ring (41) coaxially arranged on a rotating shaft, and an outer ring (42) coaxially arranged outside the inner ring (41); a collecting seat (43) extending in a radial direction is arranged between the outer circumferential surface of the inner ring (41) and the inner circumferential surface of the outer ring (42); the collecting seat (43) has a collecting groove (431) with an opening at the top; the top of the collecting groove (431) is clearance-matched with the bottom of the filter disc (3); the outer ring (42) is also provided with a discharge port (421) communicating with the collection groove (431); the discharge port (421) faces the inner wall of the housing (2); The inner wall of the buffer chamber (22) is provided with a water pressure plug (6), and the water pressure plug (6) is located between the discharge port (421) and the sewage discharge port (24). When the water pressure in the buffer chamber (22) is greater than a predetermined value, the water pressure plug (6) automatically opens the sewage discharge port (24) relative to the discharge port (421), and the liquid passing through the filter plate (3) from the liquid collecting chamber (23) is discharged outward through the collecting groove (431), the discharge port (421) and the sewage discharge port (24) in sequence.

2. According to claim 1, a radiation type micro-sprinkler irrigation device for farmland water conservancy projects based on low-pressure pipelines is characterized in that: The buffer chamber (22) comprises an upper chamber (221) and a lower chamber (222) which are coaxially arranged. The diameter of the lower chamber (222) is smaller than the diameter of the upper chamber (221). The outer edge of the arc-shaped guide plate (511) is gap-matched with the inner wall of the lower chamber (222). The diameter of the lower chamber (222) is smaller than the diameter of the diverter pipe (12). When the sprinkler liquid flows from the diverter pipe (12) to the lower chamber (222), the flow rate of the sprinkler liquid increases.

3. The radiation type micro-sprinkler irrigation equipment for farmland water conservancy projects based on low-pressure pipelines according to claim 1 is characterized in that: The housing (2) is provided with a bracket (25) fixedly connected thereto, and the bracket (25) is provided with an adjusting bolt (26), the bottom end of the adjusting bolt (26) faces the spray hole (21) of the housing, and the spray liquid sprayed from the spray hole (21) is guided by the bottom end of the adjusting bolt (26) and then sprayed out toward the surrounding side.

4. The radiation type micro-sprinkler irrigation equipment for farmland water conservancy projects based on low-pressure pipelines according to claim 3 is characterized in that: The adjusting bolt (26) is threadedly connected to the bracket (25). The adjusting bolt (26) is coaxially arranged with the injection hole (21). A drainage block (27) is arranged at the bottom end of the adjusting bolt (26). The diameter of the drainage block (27) gradually increases from top to bottom. The bottom surface of the drainage block (27) is provided with drainage grooves (271) distributed along the circumference thereof. The drainage grooves (271) extend in the radial direction of the drainage block (27). The irrigation liquid sprayed from the injection hole (21) is guided by the drainage grooves (271) and then sprayed radially toward the circumference.

5. The radiation type micro-sprinkler irrigation equipment for farmland water conservancy projects based on low-pressure pipelines according to claim 1 is characterized in that: The hydraulic plug (6) comprises a fixed sleeve (61) coaxially arranged in the buffer chamber (22), and a sliding sleeve (62) coaxially slidably arranged between the fixed sleeve (61) and the inner wall of the buffer chamber (22); an annular sealing plug (621) is arranged at the bottom end of the sliding sleeve (62); an inner sealing ring (622) is arranged between the inner circumferential surface of the annular sealing plug (621) and the outer circumferential surface of the fixed sleeve (61); an outer sealing ring (623) is arranged between the outer circumferential surface of the annular sealing plug (621) and the inner wall of the buffer chamber (22); and an elastic element is arranged at the bottom end of the annular sealing plug (621). (63), the top end of the sliding sleeve (62) abuts against the outer side of the bottom end of the filter disc (3), and the top end of the annular sealing plug (621) forms a pressure chamber (64) connected to the buffer chamber (22). When the filter disc (3) is blocked, the pressure of the buffer chamber (22) increases, so that the pressure of the pressure chamber (64) increases, and the annular sealing plug (621) overcomes the elastic force of the elastic element (63) and moves downward to connect the sewage outlet (24) and the discharge outlet (421). An upper sealing ring (65) is provided on the outer side of the bottom end of the filter disc (3). In the initial state, the sliding sleeve (62) abuts against the upper sealing ring (65).

6. The radiation type micro-sprinkler irrigation equipment for farmland water conservancy projects based on low-pressure pipelines according to claim 5 is characterized in that: The bottom surface of the collecting groove (431) gradually slopes downward from the inside to the outside, the scraper wall on one side of the collecting groove (431) is higher than the scraper wall on the other side, the top of the scraper wall on the higher side of the collecting groove (431) fits the filter plate, and the top surfaces of the scraper walls on both sides of the collecting groove (431) are inclined surfaces.

7. A radiation type micro-sprinkler irrigation device for farmland water conservancy projects based on a low-pressure pipeline according to any one of claims 1 to 6, characterized in that: The housing (2) comprises an upper shell (28) and a lower shell (29), the upper shell (28) and the lower shell (29) being coaxially threadedly screwed together, a stepped groove being arranged on the inner circumferential surface of the upper shell (28), the filter disc (3) being arranged in the stepped groove, and the sewage outlets (24) being distributed on the upper shell (28) along the circumferential direction.

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