Irrigation device for agricultural planting

Abstract

The invention relates to the technical field of agricultural planting irrigation, in particular to an agricultural planting irrigation device which comprises a water pump, one end of the water pump is connected with a water source, the other end of the water pump is connected with an upstream water pipe to be detected, the upstream water pipe is provided with a detection box, the detection box is communicated with a downstream water pipe, and the upstream water pipe and the downstream water pipe are both provided with nozzles. The detection box is provided with a visual blockage detection mechanism, a water flow fluctuation mechanism is further arranged in the detection box, the position of the visual blockage detection mechanism relative to the datum line can be observed through the transparent protective cover through the visual blockage detection mechanism, and it can be visually and rapidly judged that blockage is located on the upstream pipe section or the downstream pipe section without disassembly; pressure fluctuation is regularly generated in the detection box, the pulse water flow is immediately injected into the downstream water pipe to tear off sundries in the wall of the downstream water pipe, meanwhile, pressure waves are spread along the downstream water pipe to cause slight vibration of the pipe wall, blockage is further promoted to be loosened, and auxiliary cleaning and dredging of the downstream non-blocked pipe section are achieved.

Description

Technical Field

[0001] This invention relates to the field of agricultural irrigation technology, specifically to an irrigation device for agricultural planting. Background Technology

[0002] Agricultural irrigation refers to the key agronomic measures that replenish soil moisture through manual or mechanized means during the crop growth cycle to meet its physiological needs. Its core lies in supplying the appropriate amount of water at the right time and in a reasonable manner, based on the crop's water requirements. Currently, the mainstream irrigation method is sprinkler irrigation, which uses pumps to pressurize water and deliver it to the field through a pipeline system. The water is then atomized by sprinklers and evenly distributed, simulating natural rainfall. It offers advantages such as water conservation, high efficiency, strong terrain adaptability, suitability for various scenarios including fields, vegetables, orchards, and lawns, and ease of automation.

[0003] However, sprinkler irrigation systems are susceptible to blockages during operation due to the presence of sediment, suspended impurities, and scale formed by the precipitation of high concentrations of calcium and magnesium ions in the water source, as well as the formation of slime or clumps by algae, microorganisms, and aquatic organisms such as shellfish and snails in the pipes. This can lead to uneven irrigation, reduced system pressure, increased pump energy consumption, and even equipment damage.

[0004] Before carrying out dredging operations, the location of the blockage must be accurately determined and located. Currently, the commonly used method is the segmented inspection method: starting from the farthest end of the pipeline network, the branch pipe valves are closed segment by segment. If the pressure in the main pipeline rises significantly after a branch pipe is closed, it is determined that the blockage is located in that branch pipe. Then, the branch pipe is further segmented or disassembled for inspection to narrow down the scope. This method is cumbersome, time-consuming, relies on experience, and cannot provide intuitive and real-time feedback on the blockage status.

[0005] To address the aforementioned issues, there is an urgent need to develop an irrigation device for agricultural planting. This device features an intuitive blockage detection mechanism that can visually identify the specific pipe section experiencing a blockage during system operation. Simultaneously, during the detection process, it applies controllable instantaneous hydraulic impact to downstream unblocked pipe sections. This achieves both rapid and intuitive determination of the blockage location and preliminary unblocking function, thereby improving the operation and maintenance efficiency of the irrigation system, reducing manual inspection costs, and ensuring the continuity and uniformity of sprinkler irrigation operations. Summary of the Invention

[0006] In response to the problems raised in the background art, the present invention provides an irrigation device for agricultural planting, which will be further described below.

[0007] An irrigation device for agricultural planting includes a water pump, one end of which is connected to a water source and the other end is connected to an upstream water pipe to be tested. A test box is provided on the upstream water pipe, and a downstream water pipe is connected to the test box. Both the upstream and downstream water pipes are equipped with nozzles. The test box is equipped with a visual blockage detection mechanism, and a water flow ripple mechanism is also provided inside the test box.

[0008] Preferably, the intuitive blockage detection mechanism includes a protective cylinder fixed to the top of the detection box, a transparent protective cover on the protective cylinder, a display block on the transparent protective cover, and color markings on the display block.

[0009] Preferably, the display block is provided with a slide bar, which passes through the protective cylinder and the detection box in sequence and extends into the inner cavity of the detection box. The slide bar is provided with a sliding plate, and the sliding plate is provided with a rubber cover, which is embedded in and slides within the inner cavity of the detection box.

[0010] Preferably, the slide rod is provided with a disc, the disc slides into the inner cavity of the protective cylinder, and a compression spring is provided between the disc and the protective cylinder.

[0011] Preferably, the detection box is equipped with a filter.

[0012] Preferably, the water flow undulation mechanism includes a rotating shaft that is rotatably connected to the detection box, a blade on the rotating shaft, a second gear on the rotating shaft, a mounting base on the detection box, and a first gear and a swing rod on the mounting base.

[0013] Preferably, the detection box is equipped with a pressure relief valve, which contains a valve stem, a push rod, and a return spring. The free end of the swing rod is in contact with the push rod of the pressure relief valve.

[0014] Preferably, both the left and right ports of the test box are detachably connected to docking boxes by bolts. Both the left and right ends of the test box are provided with docking pipes. Each docking box is provided with two baffle plates and two slides. Each slide is provided with a rotating rod. One end of the rotating rod is fixed to the corresponding baffle plate, and the other end is slidably engaged in the slide. A torsion spring is provided between the rotating rod and the docking box.

[0015] Preferably, the docking box is provided with a release frame, and wedge blocks are provided at the left and right ends of the release frame respectively. The wedge blocks are pressed and contacted with the free ends of the corresponding rotating rods, and a storage spring is provided between the release frame and the docking box.

[0016] Preferably, the detection box is provided with a protective shell.

[0017] Beneficial effects: This device uses the directional action of water pressure on the rubber cover to drive the display block to move up and down in opposite directions. Operators can observe its position relative to the baseline through the transparent protective cover, and can intuitively, quickly and without disassembly determine whether the blockage is located in the upstream or downstream pipe section. The mechanism has a simple structure, sensitive response, and clear interpretation. It can also be cascaded and applied to multiple pipe systems, making it suitable for rapid on-site diagnosis and preliminary intervention of blockage faults in agricultural sprinkler irrigation networks.

[0018] The continuous flow of water within the detection chamber drives the blades in the water flow ripple mechanism to rotate. Through the transmission of the shaft, gear two, and gear one, the swing arm intermittently squeezes the pressure relief valve rod, achieving the periodic opening and closing of the pressure relief valve. This generates regular pressure fluctuations within the detection chamber. The pulsed water flow is then injected into the downstream water pipe. The sudden change in water flow velocity generates significant shearing force on loosely attached blockages such as algae, biofilm, and loose sludge, tearing them off the downstream water pipe wall. Simultaneously, the pressure wave propagates along the downstream water pipe, causing slight vibrations in the pipe wall, further loosening the blockages. The loosened impurities are then gradually carried away by the stable water flow during the pulse intervals, achieving auxiliary cleaning and unblocking of the downstream unblocked pipe sections.

[0019] The dedicated docking mechanism, consisting of a connecting pipe, release bracket, energy storage spring, wedge block, rotating rod, slide, barrier plate, and torsion spring, works in tandem to provide a smooth channel for the insertion of the connecting pipe. After installation, water can flow freely, ensuring a stable connection between the test box and the upstream and downstream water pipes during the testing process. It also takes into account the requirements for quick disassembly and leak prevention, automatically sealing the pipe opening during disassembly to effectively prevent residual water from leaking out of the pipe. Attached Figure Description

[0020] Figure 1 : A three-dimensional structural schematic diagram of the present invention; Figure 2 : A schematic diagram of the intuitive blockage detection mechanism of the present invention; Figure 3 : A schematic diagram of the structure of the relevant components of the water flow ripple mechanism of the present invention; Figure 4 : A schematic diagram of the structure of the gear, blades, shaft, and other components of this invention; Figure 5 : A schematic diagram of the structure of the rotating rod, slide, wedge block and other components of this invention; In the diagram: 1-Water pump, 11-Upstream water pipe, 12-Downstream water pipe, 13-Nozzle, 2-Detection box, 201-Connecting pipe, 202-Disc, 21-Protective shell, 22-Connecting box, 23-Rubber cover, 24-Sliding plate, 25-Protective cylinder, 251-Transparent protective cover, 26-Display block, 27-Slide rod, 28-Compression spring, 29-Filter, 3-Pressure relief valve, 31-Gear one, 32-Swing rod, 33-Gear two, 34-Blade, 35-Rotating shaft, 36-Mounting base, 4-Blocking plate, 41-Torsion spring, 42-Release frame, 43-Storage spring, 44-Rotating rod, 45-Slide rail, 46-Wedge block. Detailed Implementation

[0021] Next, combine Figures 1-5 A specific embodiment of the present invention will be described in detail below.

[0022] refer to Figure 1 and Figure 2 An agricultural irrigation device includes a water pump 1, one end of which is connected to a water source and the other end to an upstream water pipe 11 to be tested, providing the water flow power required for testing. The output port of the upstream water pipe 11 is connected to the input port of a testing box 2, and the output port of the testing box 2 is connected to a downstream water pipe 12. Thus, the upstream water pipe 11 and the downstream water pipe 12 are connected in series through the testing box 2, forming a complete water flow path consisting of a water source, water pump 1, upstream water pipe 11, testing box 2, and downstream water pipe 12. The output port of the downstream water pipe 12 can be further connected to the next section of pipe through the subsequent testing box 2 to achieve multi-level cascade testing. Both the upstream water pipe 11 and the downstream water pipe 12 are equipped with sprinklers 13 to meet the needs of sprinkler irrigation.

[0023] refer to Figure 2 The detection box 2 is equipped with an intuitive blockage detection mechanism. This mechanism has a visual indication that can directly determine and clearly identify the specific pipe segment in which the blockage occurs in the upstream water pipe 11 or the downstream water pipe 12. At the same time, the detection box 2 is also equipped with a water flow fluctuation mechanism, which can apply controllable instantaneous hydraulic impact or pulsed water flow disturbance to the downstream water pipe 12 segment that has not been blocked during the detection process. It has both preliminary unblocking and auxiliary diagnosis functions, thereby achieving the dual technical effects of rapid determination of blockage location and local hydraulic intervention.

[0024] refer to Figure 2 The intuitive blockage detection mechanism includes a protective cylinder 25 fixed to the top of the detection box 2. A transparent protective cover 251 is installed through the top of the protective cylinder 25. The protective cylinder 25 and the transparent protective cover 251 together form a vertically unobstructed observation tube structure. A vertically movable display block 26 is slidably connected inside the transparent protective cover 251. The display block 26 has obvious color markings, and the position of the display block 26 can be directly observed through the transparent protective cover 251.

[0025] refer to Figure 2 The movement of the display block 26 is driven by water pressure: a sliding rod 27 is fixedly connected to the bottom of the display block 26. The sliding rod 27 passes through the protective cylinder 25 and the detection box 2 in sequence and extends into the inner cavity of the detection box 2. A sliding plate 24 is fixedly connected to the end of the sliding rod 27 located in the inner cavity of the detection box 2. A rubber cover 23 is provided on the sliding plate 24. The rubber cover 23 is a lightweight and flexible arched cover structure. The rubber cover 23 is embedded in and slidably limited in the inner cavity of the detection box 2. Its arched design is conducive to the water flow converging below it, forming a concentrated upward lifting force, or generating a downward force when pressure is applied above.

[0026] To ensure that the display block 26 automatically resets in the absence of pressure difference, a disc 202 is fixedly connected to the outer periphery of the slide rod 27. The disc 202 slides in the inner cavity of the protective cylinder 25. A compression spring 28 is provided between the disc 202 and the bottom wall of the protective cylinder 25 to provide reset elasticity.

[0027] Installation phase: Connect the upstream water pipe 11 to the outlet of the water pump 1, connect its output end to the input port of the detection box 2, and connect the output port of the detection box 2 to the downstream water pipe 12.

[0028] In the initial state, the display block 26 is located at the baseline position inside the transparent protective cover 251, the compression spring 28 is in a naturally relaxed state, and a flow gap is maintained between the rubber cover 23 and the bottom wall of the detection box 2, which does not affect the normal water flow.

[0029] Testing phase: With nozzle 13 in a closed state, water pump 1 is turned on, and water flows through upstream water pipe 11 into test box 2. If both upstream water pipe 11 and downstream water pipe 12 are unobstructed, the water flows smoothly, the rubber cover 23 is balanced by force, and the display block 26 remains near the baseline.

[0030] If the downstream water pipe 12 is blocked while the upstream water pipe 11 is unobstructed, the water flow accumulates in the detection box 2 and generates back pressure, which impacts the rubber cover 23 from above, pressing it downwards. This causes the sliding plate 24, sliding rod 27, disc 202, and display block 26 to move downwards simultaneously, compressing the spring 28 and causing the display block 26 to be significantly lower than the baseline.

[0031] If the upstream water pipe 11 is blocked while the downstream water pipe 12 is unobstructed, only a small amount of water will enter the detection box 2. The water will gradually accumulate below the rubber cover 23, forming an upward lifting force that will lift the lightweight arched rubber cover 23, compress the spring 28, and thus drive the sliding plate 24 and the display block 26 to move upward, making their position significantly higher than the baseline.

[0032] The directional action of water pressure on the rubber cover 23 drives the display block 26 to move in opposite directions. The operator can observe its position relative to the baseline through the transparent protective cover 251, and can intuitively, quickly and without disassembly determine whether the blockage is located in the upstream or downstream pipe section. This mechanism has a simple structure, sensitive response, and clear interpretation. It can also be cascaded and applied to multiple pipe systems, and is suitable for rapid on-site diagnosis and preliminary intervention of blockage faults in agricultural sprinkler irrigation networks.

[0033] After the test is completed, the water pump 1 is turned off, the water flow stops, and under the action of the compression spring 28, the disc 202 moves upward, which in turn drives the slide bar 27, the sliding plate 24, the rubber cover 23 and the display block 26 to move back to the initial position in sequence, ensuring that the device returns to the reference state and is ready for the next round of blockage test.

[0034] To prevent impurities such as silt, algae, and suspended particles in the water source from interfering with the detection accuracy or causing the mechanism to jam, the detection box 2 is equipped with a filter 29. The filter 29 is located near the water inlet and is used to intercept and filter out solid impurities in the water to ensure that the water entering the detection chamber is clean, thereby ensuring that the rubber cover 23 responds sensitively and the display block 26 operates accurately.

[0035] refer to Figure 3 and Figure 4 The water flow undulation mechanism includes a rotating shaft 35 that is rotatably connected to the detection box 2. A paddle 34 is keyed to the portion of the rotating shaft 35 located within the inner cavity of the detection box 2. The paddle 34 is positioned near the output port of the detection box 2, i.e., adjacent to the downstream water pipe 12. When water flows through the detection box 2, its kinetic energy impacts the paddle 34, driving it to rotate and simultaneously rotating the rotating shaft 35. A gear 33 is keyed to the end of the rotating shaft 35 extending beyond the outer wall of the detection box 2. A mounting base 36 is fixedly connected to the outer wall of the detection box 2. A gear 31 that meshes with the gear 33 and a swing rod 32 coaxially fixed to the gear 31 are rotatably mounted on the mounting base 36, both rotating synchronously.

[0036] The detection box 2 is also equipped with a pressure relief valve 3, which contains a valve stem, a push rod, and a return spring, forming a normally closed instantaneous pressure relief structure. The free end of the swing rod 32 is in contact with the push rod of the pressure relief valve 3. During operation, the swing rod 32 rotates with the gear 31 and periodically squeezes the push rod, pushing the valve stem to overcome the spring force and instantaneously open the pressure relief valve 3. This causes a small stream of high-pressure water to be quickly discharged from the pressure relief port in the detection box 2, resulting in a sudden drop in pressure inside the cavity. When the swing rod 32 continues to rotate and disengages from the push rod, the pressure relief valve 3 closes rapidly under the action of the internal spring, and the water flow refills the detection box 2. The pressure then quickly rises again. This opening and closing cycle forms a clear and controllable pressure pulse hydraulic shock wave inside the detection box 2.

[0037] During the detection phase, the water flow gathered in the detection box 2 continuously drives the blade 34 to rotate. Through the transmission of the rotating shaft 35, gear 2 33 and gear 1 31, the swing rod 32 intermittently squeezes the top rod of the pressure relief valve 3, realizing the periodic opening and closing of the pressure relief valve 3. This generates pressure fluctuations regularly in the detection box 2. The pulsed water flow is then injected into the downstream water pipe 12. The sudden change in water flow velocity generates significant shearing force on loosely attached blockages such as algae, biofilm, and loose sludge, which can tear them off from the wall of the downstream water pipe 12. At the same time, the pressure wave propagates along the downstream water pipe 12, causing slight vibration of the pipe wall, further promoting the loosening of the blockage. The loosened impurities are gradually carried out by the stable water flow in the pulse interval, realizing the auxiliary cleaning and unblocking of the downstream unblocked pipe section.

[0038] In summary, by integrating visual blockage detection and active hydraulic pulse intervention, this device can not only locate blockages but also remove potential minor blockages in situ, significantly improving the intelligence level and operational efficiency of agricultural irrigation network operation and maintenance.

[0039] refer to Figure 5 To ensure a stable connection between the test box 2 and the upstream water pipe 11 and the downstream water pipe 12 during the testing process, while also taking into account the requirements for quick disassembly and leak prevention, this device is equipped with a dedicated docking mechanism at both ends of the test box 2. This mechanism can achieve seamless and sealed connection between the test box 2 and the pipeline, and can automatically close the pipe opening during disassembly, effectively preventing residual water in the pipe from leaking out.

[0040] The specific structure is as follows: The left and right ports of the detection box 2 are detachably connected to the docking box 22 by bolts. The left and right ends of the detection box 2 are provided with the connecting pipe 201. When installed, the connecting pipe 201 extends into the upstream water pipe 11 or the downstream water pipe 12 to form a plug-in flow channel connection. Each docking box 22 has two opposing baffle plates 4 rotatably installed inside. The free ends of the two baffle plates 4 contact each other and close in the natural state to form a sealing baffle, which blocks the channel between the docking box 22 and the corresponding water pipe port.

[0041] Each docking box 22 has two symmetrical arc-shaped slides 45 on its top. Each slide 45 is rotatably connected to a rotating rod 44. One end of the rotating rod 44 is fixed to the corresponding barrier plate 4, and the other end is slidably fitted in the arc-shaped slide 45 as a free end. The arc-shaped slide 45 guides the rotation trajectory of the rotating rod 44 to ensure that the opening and closing movement of the barrier plate 4 is smooth and reliable. A torsion spring 41 is provided between the rotating rod 44 and the housing of the docking box 22 to drive the barrier plate 4 to close automatically when no external force is applied.

[0042] Furthermore, a release frame 42 is slidably connected to the top of the docking box 22. The release frame 42 is located between the free ends of the two rotating rods 44. Wedge blocks 46 are provided at the left and right ends of the release frame 42 respectively. The wedge blocks 46 are pressed and contacted with the free ends of the corresponding rotating rods 44. A storage spring 43 is provided between the release frame 42 and the docking box 22, which is used to push the release frame 42 to reset after the external force is released.

[0043] Installation phase: First, connect the connecting pipes 201 of the two docking boxes 22 to the ports of the upstream water pipe 11 and the downstream water pipe 12 respectively. Then, fasten the detection box 2 to the docking boxes 22 on both sides with bolts. During the connection process, the external force pushes the release frame 42 to move, the energy storage spring 43 is compressed, and the wedge block 46 moves laterally and squeezes the free ends of the two rotating rods 44. Under the guidance of the arc-shaped slide 45, the rotating rods 44 rotate around the axis, causing the free ends of the two blocking plates 4 to separate and open to both sides of the connecting pipe 201. The torsion spring 41 stores energy synchronously, thus providing a channel for the smooth insertion of the connecting pipe 201. After the installation is completed, the water flow can pass through smoothly.

[0044] Disassembly stage: When the test box 2 needs to be removed after the test is completed, loosen the bolts to detach it from the docking box 22, and pull the connecting pipe 201 out of the water pipe. At this time, the storage spring 43 releases its elastic force, pushing the release frame 42 and the wedge block 46 to reset outward, releasing the compression on the free end of the rotating rod 44. Under the rebound action of the torsion spring 41, the two rotating rods 44 rotate in opposite directions, causing the free end of the barrier plate 4 to close again and fit tightly, forming an effective blockage and preventing the water from overflowing from the upstream water pipe 11 and the downstream water pipe 12.

[0045] This docking mechanism, through mechanical linkage and elastic reset design, achieves an automatic sealing function that opens upon insertion and closes upon removal. While ensuring the system's sealing performance and ease of operation, it significantly improves the safety and efficiency of agricultural irrigation network inspection operations.

[0046] The outer periphery of the detection box 2 is provided with a detachable protective shell 21, which is used to shield and protect the transmission and linkage components distributed outside the detection box 2, including gear 2 33, gear 1 31, rotating shaft 35, mounting base 36 and swing rod 32. This effectively prevents external mud, dust, plant debris or mechanical collisions from interfering with or damaging the precision transmission mechanism, and also facilitates quick disassembly during maintenance, ensuring long-term reliable operation and convenient maintenance of the device in the complex environment of agricultural irrigation.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An irrigation device for agricultural planting, comprising a water pump (1), one end of which is connected to a water source and the other end of which is connected to an upstream water pipe (11) to be tested, characterized in that: An inspection box (2) is provided on the upstream water pipe (11), and a downstream water pipe (12) is connected to the inspection box (2). Both the upstream water pipe (11) and the downstream water pipe (12) are equipped with nozzles (13). The inspection box (2) is equipped with an intuitive blockage detection mechanism, and a water flow ripple mechanism is also provided inside the inspection box (2).

2. The irrigation device for agricultural planting according to claim 1, characterized in that: The intuitive blockage detection mechanism includes a protective cylinder (25) fixed to the top of the detection box (2), a transparent protective cover (251) on the protective cylinder (25), a display block (26) on the transparent protective cover (251), and color markings on the display block (26).

3. The irrigation device for agricultural planting according to claim 2, characterized in that: The display block (26) is provided with a slide rod (27), which passes through the protective cylinder (25) and the detection box (2) in sequence and extends into the inner cavity of the detection box (2). The slide rod (27) is provided with a sliding plate (24), and the sliding plate (24) is provided with a rubber cover (23). The rubber cover (23) is embedded in and slides in the inner cavity of the detection box (2).

4. The irrigation device for agricultural planting according to claim 3, characterized in that: A disc (202) is provided on the slide rod (27), the disc (202) slides in the inner cavity of the protective cylinder (25), and a compression spring (28) is provided between the disc (202) and the protective cylinder (25).

5. The irrigation device for agricultural planting according to claim 3, characterized in that: The detection box (2) is equipped with a filter (29).

6. The irrigation device for agricultural planting according to claim 5, characterized in that: The water flow undulation mechanism includes a rotating shaft (35) that is rotatably connected to the detection box (2), a blade (34) on the rotating shaft (35), a second gear (33) on the rotating shaft (35), a mounting base (36) on the detection box (2), a first gear (31) and a swing rod (32) on the mounting base (36).

7. The irrigation device for agricultural planting according to claim 6, characterized in that: The detection box (2) is equipped with a pressure relief valve (3). The pressure relief valve (3) is equipped with a valve stem, a push rod and a reset spring inside. The free end of the swing rod (32) is in contact with the push rod of the pressure relief valve (3).

8. The irrigation device for agricultural planting according to claim 7, characterized in that: The left and right ports of the test box (2) are detachably connected to the docking box (22) by bolts. The left and right ends of the test box (2) are provided with docking pipes (201). Each docking box (22) is provided with two baffle plates (4). Each docking box (22) is provided with two slides (45). Each slide (45) is provided with a rotating rod (44). One end of the rotating rod (44) is fixedly connected to the corresponding baffle plate (4), and the other end is slidably fitted in the slide (45). A torsion spring (41) is provided between the rotating rod (44) and the docking box (22).

9. The irrigation device for agricultural planting according to claim 8, characterized in that: The docking box (22) is provided with a release frame (42), and wedge blocks (46) are provided at the left and right ends of the release frame (42). The wedge blocks (46) are pressed against the free end of the corresponding rotating rod (44). A storage spring (43) is provided between the release frame (42) and the docking box (22).

10. The irrigation device for agricultural planting according to claim 8, characterized in that: The detection box (2) is provided with a protective shell (21).

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