A smart water-saving irrigation device applicable to multiple irrigation ranges

Abstract

This invention relates to the field of water-saving irrigation technology and discloses a smart water-saving irrigation device applicable to multiple irrigation ranges. It includes an irrigation base, an irrigation main pipe extending through the bottom of the irrigation base, a telescopic corrugated pipe connected to the irrigation main pipe, and an irrigation nozzle installed on top of the telescopic corrugated pipe. It also includes a tilting mechanism and a cleaning mechanism located inside the irrigation base. Through the tilting mechanism, the tilt angle and lifting height of the nozzle in four directions can be flexibly and independently adjusted. This allows a single irrigation nozzle to intelligently switch between different operating modes, such as large-area flat, uniform spraying and long-distance directional precision irrigation. Ultimately, the irrigation range and distance can be adjusted in real time according to crop distribution, eliminating irrigation blind spots and overlapping areas present in traditional fixed nozzles. This enables on-demand water resource allocation, improves irrigation uniformity and water resource utilization, and enhances the adaptability of the device in diverse agricultural scenarios.

Description

Technical Field

[0001] This invention relates to the field of water-saving irrigation technology, and in particular to a smart water-saving irrigation device applicable to multiple irrigation ranges. Background Technology

[0002] In traditional agricultural irrigation, fixed sprinkler systems offer a limited range of irrigation modes, making it difficult to simultaneously meet the needs of large-area uniform spraying and long-distance directional irrigation. Existing adjustable sprinkler devices mostly rely on manual or single-electric adjustment, resulting in low automation and an inability to adjust the spray width and range in real time and accurately according to crop distribution. Furthermore, water tends to remain in the pipes after irrigation, wasting water resources and potentially affecting equipment lifespan and hygiene due to clogging or freezing. Therefore, there is an urgent need for a smart irrigation device that can intelligently adjust the spray range and automatically drain residual water to achieve high water efficiency and adaptability to various scenarios.

[0003] The existing technology has the following drawbacks: The fixed and singular method of adjusting the irrigation range leads to water waste and poor adaptability: Existing irrigation devices usually rely on preset angles or a single drive mechanism to control the direction of irrigation. Their spray range and range are fixed, making it difficult to flexibly switch irrigation modes according to the distribution patterns of different crops. For example, traditional sprinklers cannot expand the spray width when large-area coverage is needed, and cannot concentrate the water flow when long-range irrigation is needed, resulting in both irrigation blind spots and overlapping areas. This rigid design leads to uneven water distribution, with some areas being over-irrigated and others under-irrigated. This not only wastes water resources but also affects the uniformity of crop growth, limiting the application potential of the device in diverse agricultural scenarios.

[0004] The lack of an effective pipe drainage mechanism easily leads to equipment blockage and freezing damage: After the operation of existing irrigation systems, water often remains inside the pipes and nozzles. This is especially true for devices with telescopic pipes or complex flow channels, where water is difficult to drain naturally by gravity. Long-term accumulation of water can easily breed microorganisms and deposit impurities, gradually clogging nozzle orifices or valves and reducing irrigation efficiency. In low-temperature environments, the freezing and expansion of residual water can directly damage precision components such as corrugated pipes and joints, shortening the equipment's lifespan. Traditional solutions often rely on manual disassembly and drainage or the addition of extra drain valves. However, the former is cumbersome and has a low degree of automation, while the latter increases costs and potential points of failure. This deficiency directly affects the reliability, maintenance frequency, and long-term operating costs of the device, making it difficult to meet the requirements of modern smart agriculture for equipment durability and low maintenance. Summary of the Invention

[0005] Given the problems of existing technologies, such as fixed and singular irrigation range adjustment methods and lack of effective pipeline drainage mechanisms, a smart water-saving irrigation device applicable to multiple irrigation ranges is proposed.

[0006] This application provides a smart water-saving irrigation device applicable to multiple irrigation ranges. Its purpose is to achieve flexible and precise control of the working height and spraying direction of the irrigation nozzles by setting up an independently adjustable multi-motor linkage lifting and tilting mechanism, combined with a nozzle suspension system with a cross joint and telescopic corrugated pipe, and a set of air venting and drainage devices that can be automatically triggered when the nozzles descend. This allows a single nozzle to intelligently switch between different modes such as large-area flat irrigation and long-distance directional spraying, and automatically reset after operation. At the same time, it effectively prevents siltation and freezing damage by draining residual water in the pipes, ultimately achieving the goal of significantly improving water resource utilization and adapting to diverse irrigation scenarios.

[0007] The technical solution of the present invention is as follows: a smart water-saving irrigation device applicable to multiple irrigation ranges, including an irrigation seat, an irrigation main pipe passing through the bottom of the irrigation seat, a telescopic corrugated pipe communicating with the irrigation main pipe, and an irrigation nozzle installed on the top of the telescopic corrugated pipe, and also includes an tilting mechanism and a cleaning mechanism disposed inside the irrigation seat. The irrigation seat has an internal cavity. The tilting mechanism includes multiple vertical racks slidably connected to the inner wall of the cavity. The multiple vertical racks are arranged in a cross shape around the telescopic bellows. A fixing block is fixedly connected to the top of each of the multiple vertical racks. A cross joint is threaded between the telescopic bellows and the irrigation nozzle. A steering component is provided between the cross joint and the multiple fixing blocks. When one of the fixing blocks is raised and the opposite fixing block is lowered, the spraying direction of the irrigation nozzle is adjusted by the steering component.

[0008] Using the above scheme, a tilting mechanism is set up to cause relative movement of a set of opposing vertical racks. One rack drives its fixed block to rise, while the other rack descends. This height difference acts on the cross joint through the corresponding steering component, causing it to tilt towards the lowering side, thereby driving the irrigation nozzle to deflect synchronously and change its spray angle and coverage. The entire adjustment process is achieved through multi-point linkage, ensuring the smoothness and accuracy of the nozzle attitude adjustment.

[0009] Furthermore, the pipeline cleaning mechanism includes an exhaust valve body fixedly connected to the cross joint, the inner wall of the exhaust valve body is provided with a displacement groove, the inner wall of the displacement groove is rotatably connected with a ball, the bottom of the exhaust valve body is provided with an exhaust port, a ventilation hole is provided between the cross joint and the telescopic corrugated pipe, and the telescopic corrugated pipe and the exhaust port are connected through the ventilation hole and the displacement groove.

[0010] Furthermore, the cleaning mechanism also includes a fixed seat fixedly connected to the inner wall of the receiving cavity. The inner wall of the fixed seat is provided with a retractable groove. A vertical pin is slidably connected to the inner wall of the retractable groove. A second telescopic spring is fixedly connected between the bottom of the vertical pin and the inner wall of the retractable groove. When the exhaust valve body moves down, the top of the vertical pin abuts against the bottom of the ball.

[0011] Using the above scheme, a cleaning mechanism is set up to automatically drain the water accumulated in the pipeline after irrigation. During irrigation, the irrigation nozzle and the connected exhaust valve body are in a high position, and the internal ball bearings seal the exhaust passage. After irrigation, the water source is turned off, and the tilting mechanism drives the nozzle to move down as a whole. During the downward movement, the ball bearings at the bottom of the exhaust valve body are lifted by the vertical pin fixed on the irrigation seat below and roll and move in the displacement groove, thereby opening the channel. The water accumulated inside the telescopic corrugated pipe is quickly discharged through the ventilation hole, displacement groove and exhaust port under the action of gravity. Air enters at the same time to assist in the venting. Before irrigation again, the nozzle is raised, the exhaust valve body moves up, the vertical pin is reset under the action of the spring, and the ball bearings return to their position to reseal the channel, completing the cleaning cycle.

[0012] Furthermore, the steering assembly includes a second fork and a rotating seat, with a first telescopic spring fixedly connected between the second fork and the rotating seat. The end of the rotating seat away from the second fork is rotatably connected to a cross joint. An extension tube is fixedly connected to the outer wall of the rotating seat. An extension groove is provided on the outer wall of the second fork, and the extension tube is slidably connected to the second fork through the extension groove.

[0013] Furthermore, the steering assembly also includes a first fork and a cross shaft. The first fork is fixedly connected to one end of the fixing block near the cross joint, and the cross shaft is located between the first fork and the corresponding second fork. Both the first fork and the second fork are rotatably connected to the cross joint.

[0014] Using the above scheme, the steering assembly, when a fixed block is raised or lowered, drives the first fork connected to it to move in the same direction. This vertical displacement is converted into an axial force that pushes or pulls the second fork through the transmission of the cross shaft. This force is transmitted through the first telescopic spring, pushing or pulling the rotating seat. The rotating seat and the cross joint are rotatably connected, so this force ultimately acts on the cross joint, causing it to tilt around a certain axis. Since the tilting movement of the irrigation nozzle and the cross joint in space changes the relative distance between them and each fixed block, the extension tube slides along the extension groove. With the extension and contraction of the first telescopic spring, this distance change is compensated, ensuring that the steering assembly can effectively transmit force without jamming or structural interference at any tilt angle. The combined action of such steering assemblies in four directions can accurately and flexibly drive the cross joint and the irrigation nozzle to adjust to any desired spatial orientation.

[0015] Furthermore, the irrigation seat also has multiple motor cavities inside, and a drive motor is fixedly connected to the inner wall of the motor cavity. The output shaft of the drive motor is fitted with a drive gear, which is located inside the receiving cavity and meshes with a corresponding vertical rack.

[0016] Furthermore, the inner wall of the receiving cavity is provided with a vertical sliding groove, and the outer wall of the vertical rack is fixedly connected to a limiting slide plate, the outer wall of the limiting slide plate being slidably connected to the inner wall of the vertical sliding groove.

[0017] Using the above scheme, the drive motor is started, driving the drive gear to rotate. The drive gear meshes with the vertical rack, driving the vertical rack to move vertically. During this process, the drive motor and the meshing of the gear and rack provide power and displacement, while the limiting slide plate fixed on the vertical rack slides synchronously along the vertical groove on the inner wall of the receiving cavity. The sliding cooperation between the limiting slide plate and the vertical groove forms a linear guide pair, which restricts the degree of freedom of movement of the vertical rack, allowing it to rise and fall smoothly along a preset vertical path without any radial sway. Thus, the precise linear displacement is ultimately transmitted to the irrigation nozzle through the top fixed block and steering assembly, achieving controllable and reliable adjustment of the spray direction. The motors in the four directions can work independently or in concert to drive the nozzle to adjust multiple tilt angles.

[0018] Furthermore, an electric butterfly valve is fixedly connected to the bottom of the telescopic corrugated pipe, and multiple ground-inserting pipes are connected to the bottom of the telescopic corrugated pipe, with each of the multiple ground-inserting pipes penetrating the irrigation seat and extending outward.

[0019] Furthermore, a dustproof electric door is installed on the top of the irrigation seat.

[0020] The beneficial effects of this invention are: The tilting mechanism allows for flexible and independent adjustment of the sprinkler head's tilt angle and lifting height in four directions. This enables a single irrigation sprinkler head to intelligently switch between different operating modes, such as large-area flat and uniform spraying and long-distance directional precision irrigation. Ultimately, the irrigation range and distance can be adjusted in real time according to crop distribution, eliminating irrigation blind spots and overlapping areas present in traditional fixed sprinklers. This achieves on-demand water resource allocation, improves irrigation uniformity and water resource utilization, and enhances the device's adaptability to diverse agricultural scenarios.

[0021] By using a cleaning mechanism, the venting channel is automatically opened during the irrigation process and the nozzles are lowered and reset. This allows for the automatic, rapid, and thorough emptying of residual water in the pipes after irrigation. Ultimately, this avoids the risks of microbial growth, impurity sedimentation and blockage caused by long-term water accumulation, as well as the risk of freezing damage to precision components such as bellows due to the expansion of frozen water in low-temperature environments. This significantly improves the reliability, durability, and hygiene of the device, while reducing maintenance frequency and costs.

[0022] By organically integrating the three major functions of height and angle adjustment, post-operation reset, and automatic drainage, and coordinating the drive motor and electric butterfly valve through the central control system, the device achieves fully automated closed-loop management of the entire process, from irrigation mode selection and nozzle posture adjustment to post-operation retraction and drainage. Operators only need to issue instructions, and the device can autonomously complete complex action sequences. This greatly reduces the intensity of manual operation and the technical threshold, making irrigation management more convenient, precise, and efficient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the dustproof electric door of the present invention in its open state; Figure 3 This is a schematic diagram of the structure of the irrigation nozzle of the present invention; Figure 4 This is a schematic diagram of the tilting mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the telescopic corrugated pipe of the present invention; Figure 6 This is a schematic diagram of the steering component of the present invention; Figure 7 This is a schematic diagram of the cross joint of the present invention tilted to the right; Figure 8 This is a schematic diagram of the cross joint of the present invention tilted forward. Figure 9 This is a schematic diagram of the structure of the pigging mechanism of the present invention; Figure 10 This is a schematic diagram of the structure of the exhaust valve body of the present invention; Figure 11 This is a schematic diagram of the vertical ejector pin structure of the present invention; Figure 12 This is a schematic diagram of the contact process between the vertical ejector pin and the ball bearing of the present invention.

[0024] In the picture: 1. Irrigation seat; 11. Dustproof electric door; 12. Motor cavity; 13. Receiving cavity; 2. Irrigation main pipe; 3. Irrigation nozzle; 4. Telescopic corrugated pipe; 41. Grounding pipe; 42. Electric butterfly valve; 43. Cross joint; 44. Ventilation hole; 5. Tilting mechanism; 51. Drive motor; 52. Drive gear; 53. Vertical rack; 54. Limiting slide plate; 55. Vertical slide groove; 56. Fixing block; 57. Steering assembly; 571. First fork; 572. Cross shaft; 573. Second fork; 574. Extension groove; 575. Extension pipe; 576. First telescopic spring; 577. Rotating seat; 6. Cleaning mechanism; 61. Exhaust valve body; 611. Displacement groove; 612. Ball bearing; 613. Exhaust port; 62. Vertical pin; 63. Fixing seat; 64. Retracting groove; 65. Second telescopic spring. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1 - Figure 12 The present invention provides a smart water-saving irrigation device applicable to multiple irrigation ranges, including an irrigation seat 1, an irrigation main pipe 2 passing through the bottom of the irrigation seat 1, a telescopic corrugated pipe 4 communicating with the irrigation main pipe 2, and an irrigation nozzle 3 installed on the top of the telescopic corrugated pipe 4, and also includes an tilting mechanism 5 and a cleaning mechanism 6 disposed inside the irrigation seat 1.

[0027] Reference Figure 4 - Figure 8 The irrigation seat 1 has an internal cavity 13. The tilting mechanism 5 includes multiple vertical racks 53 that are slidably connected to the inner wall of the cavity 13. The multiple vertical racks 53 are distributed in a cross shape around the telescopic bellows 4. The top of each of the multiple vertical racks 53 is fixedly connected to a fixing block 56. A cross joint 43 is threaded between the telescopic bellows 4 and the irrigation nozzle 3. A steering component 57 is provided between the cross joint 43 and the multiple fixing blocks 56. When one fixing block 56 is raised and the opposite fixing block 56 is lowered, the spraying direction of the irrigation nozzle 3 is adjusted by the steering component 57.

[0028] Specifically, the tilting mechanism 5 uses multiple vertical racks 53 as its actuation basis, which slide along the inner wall of the receiving cavity 13 and are symmetrically distributed in a cross shape around the telescopic bellows 4, forming a stable planar adjustment frame. The fixed block 56 at the top of each rack serves as the action output point, responsible for transmitting the vertical movement of the rack to the steering mechanism. The telescopic bellows 4 itself has elasticity and flexibility, which can not only transport irrigation water, but also allow the sprinkler head to deflect in multiple directions within a certain range without affecting the water connection. The cross joint 43 at its top is connected to the sprinkler head and the bellows through threads, serving as a key motion conversion node, which can synthesize and convert the lifting and lowering movements of the fixed blocks 56 from different directions into changes in the direction of the sprinkler head. The steering component 57 between each fixed block 56 and the cross joint 43 is a transmission link, which effectively transmits the vertical displacement of the fixed block 56 to the cross joint 43, causing it to tilt.

[0029] The tilting mechanism 5 causes a set of opposing vertical racks 53 to move relative to each other. One rack drives its fixed block 56 to rise, while the other rack descends. This height difference acts on the cross joint 43 through the corresponding steering component 57, causing it to tilt towards the lowering side, thereby causing the irrigation nozzle 3 to deflect synchronously, changing its spray angle and coverage. The entire adjustment process is achieved through multi-point linkage, ensuring the smoothness and accuracy of the nozzle attitude adjustment.

[0030] Reference Figure 6 - Figure 12 The cleaning mechanism 6 includes an exhaust valve body 61 fixedly connected to the cross joint 43. The inner wall of the exhaust valve body 61 is provided with a displacement groove 611. A ball bearing 612 is rolledly connected to the inner wall of the displacement groove 611. An exhaust port 613 is provided at the bottom of the exhaust valve body 61. A ventilation hole 44 is provided between the cross joint 43 and the telescopic bellows 4. The telescopic bellows 4 and the exhaust port 613 are connected through the ventilation hole 44 and the displacement groove 611. The cleaning mechanism 6 also includes a fixed seat 63 fixedly connected to the inner wall of the receiving cavity 13. The inner wall of the fixed seat 63 is provided with a retractable groove 64. A vertical pin 62 is slidably connected to the inner wall of the retractable groove 64. A second telescopic spring 65 is fixedly connected between the bottom of the vertical pin 62 and the inner wall of the retractable groove 64. When the exhaust valve body 61 moves down, the top of the vertical pin 62 abuts against the bottom of the ball bearing 612.

[0031] The cleaning mechanism 6 is used to automatically drain the water accumulated in the pipes after irrigation. During irrigation, the irrigation nozzle 3 and the connected exhaust valve body 61 are in a high position, and the internal ball bearing 612 seals the exhaust passage. After irrigation, the water source is turned off, and the tilting mechanism 5 drives the nozzle to move down as a whole. During the downward movement, the ball bearing 612 at the bottom of the exhaust valve body 61 is lifted by the vertical pin 62 fixed on the irrigation seat 1 below, and rolls and moves in the displacement groove 611, thereby opening the channel. The water accumulated inside the telescopic corrugated pipe 4 is quickly discharged through the ventilation hole 44, the displacement groove 611 and the exhaust port 613 under the action of gravity. Air enters at the same time to assist in the venting. Before irrigation again, the nozzle is raised, the exhaust valve body 61 moves up, the vertical pin 62 is reset under the action of the spring, and the ball bearing 612 returns to its position to reseal the channel, completing the cleaning cycle.

[0032] Reference Figure 4 - Figure 8 The steering assembly 57 includes a second fork 573 and a rotating seat 577. A first telescopic spring 576 is fixedly connected between the second fork 573 and the rotating seat 577. The end of the rotating seat 577 away from the second fork 573 is rotatably connected to the cross joint 43. An extension tube 575 is fixedly connected to the outer wall of the rotating seat 577. An extension groove 574 is opened on the outer wall of the second fork 573. The extension tube 575 and the second fork 573 are slidably connected through the extension groove 574. The steering assembly 57 also includes a first fork 571 and a cross shaft 572. The first fork 571 is fixedly connected to the end of the fixing block 56 near the cross joint 43. The cross shaft 572 is located between the first fork 571 and the corresponding second fork 573. Both the first fork 571 and the second fork 573 are rotatably connected to the cross joint 43.

[0033] Specifically, the first fork 571 is fixedly connected to the fixed block 56 and serves as the power input end. It directly introduces the linear displacement of the fixed block 56 in the vertical direction into the steering assembly 57. The cross shaft 572 is the core direction conversion hub, located between the first fork 571 and the second fork 573. Both the first fork 571 and the second fork 573 are fitted onto the cross shaft 572 to form a rotatable connection. This allows the motion from the first fork 571, generated by the lifting and lowering of the fixed block 56, to change its transmission direction through the cross shaft 572, converting it from the vertical direction to drive the second fork. 573 tends to rotate or wobble on its own axis; the second fork 573, as an intermediate transmission component, is linked to the first fork 571 at one end through the cross shaft 572, and the other end is connected to the buffer and telescopic mechanism. The rotating seat 577 is the component that finally outputs the motion to the cross joint 43. It is rotatably connected to the cross joint 43. Between the second fork 573 and the rotating seat 577, a sliding fit is formed by the extension tube 575 moving along the extension groove 574, so that there is a certain relative sliding displacement between the second fork 573 and the rotating seat 577 along the axial direction.

[0034] When a fixed block 56 is raised or lowered by the steering component 57, it drives the first fork 571 connected to it to move in the same direction. This vertical displacement is converted into an axial force that pushes or pulls the second fork 573 through the transmission of the cross shaft 572. This force is transmitted through the first telescopic spring 576, pushing or pulling the rotating seat 577. The rotating seat 577 is rotatably connected to the cross joint 43, so this force ultimately acts on the cross joint 43, causing it to tilt around a certain axis. Since the tilting movement of the irrigation nozzle 3 and the cross joint 43 in space will change the relative distance between them and each fixed block 56, the extension tube 575 slides along the extension groove 574. With the extension and contraction of the first telescopic spring 576, this distance change is compensated, ensuring that the steering component 57 can effectively transmit force without jamming or structural interference at any tilt angle. The combined action of such steering components 57 in four directions can accurately and flexibly drive the cross joint 43 and the irrigation nozzle 3 to adjust to any desired spatial orientation.

[0035] Reference Figure 4 - Figure 8 The irrigation seat 1 also has multiple motor cavities 12 inside. A drive motor 51 is fixedly connected to the inner wall of the motor cavity 12. A drive gear 52 is sleeved on the output shaft of the drive motor 51. The drive gear 52 is located inside the receiving cavity 13 and meshes with the corresponding vertical rack 53. A vertical groove 55 is opened on the inner wall of the receiving cavity 13. A limiting slide plate 54 is fixedly connected to the outer wall of the vertical rack 53. The outer wall of the limiting slide plate 54 is slidably connected to the inner wall of the vertical groove 55.

[0036] By starting the drive motor 51, the drive gear 52 is rotated. The drive gear 52 meshes with the vertical rack 53, driving the vertical rack 53 to move vertically. During this process, the drive motor 51 and the meshing of the gear and rack provide power and displacement, while the limiting slide plate 54 fixed on the vertical rack 53 slides synchronously along the vertical groove 55 on the inner wall of the receiving cavity 13. The sliding cooperation between the limiting slide plate 54 and the vertical groove 55 forms a linear guide pair, which restricts the degree of freedom of movement of the vertical rack 53, allowing it to rise and fall smoothly along a preset vertical path without any radial sway. Thus, the precise linear displacement is finally transmitted to the irrigation nozzle 3 through the top fixing block 56 and the steering assembly 57, realizing controllable and reliable adjustment of the spraying direction. The motors in the four directions can work independently or in concert to drive the nozzle to adjust multiple tilt angles.

[0037] Reference Figure 1 - Figure 5An electric butterfly valve 42 is fixedly connected to the bottom of the telescopic bellows 4. Multiple grounding pipes 41 are connected to the bottom of the telescopic bellows 4. All multiple grounding pipes 41 penetrate the irrigation seat 1 and extend outward. A dustproof electric door 11 is installed on the top of the irrigation seat 1.

[0038] Working principle of the invention: In the initial state, the device is installed in the preset irrigation area. The main irrigation pipe 2 passes through the bottom of the irrigation seat 1 and is connected to the external water source. The bottom of the telescopic corrugated pipe 4 is connected to the main irrigation pipe 2 through the electric butterfly valve 42, and the top is equipped with an irrigation nozzle 3 through the cross joint 43. At this time, the electric butterfly valve 42 is in the closed state, the telescopic corrugated pipe 4 is in the retracted state, and there is no water inside. Multiple ground-inserted pipes 41 connected to the bottom of the telescopic corrugated pipe 4 penetrate the irrigation seat 1 and extend outward, ready to carry out root zone irrigation. The dustproof electric door 11 on the top of the irrigation seat 1 can be opened automatically to provide space for subsequent actions.

[0039] When irrigation is required, the drive motor 51 is activated, which drives multiple vertical racks 53 to rise synchronously and smoothly through the meshing of the drive gear 52. The vertical racks 53 are guided in the vertical slide 55 by the limiting slide plate 54, and the fixing block 56 at the top of them rises accordingly. The fixing block 56 is connected to the cross joint 43 through the steering assembly 57, thereby transmitting the lifting force of the vertical racks 53 to the cross joint 43. Finally, the force driven by the motor is used to force the telescopic bellows 4 to stretch axially from the contracted state through the mechanical transmission chain, raising the irrigation nozzle 3 to the working height.

[0040] Next, the spraying direction is adjusted. When a large area needs to be sprayed to the right, the control system instructs the right drive motor 51 to reverse and lower the right vertical rack 53, while simultaneously instructing the left drive motor 51 to rotate forward and raise the left vertical rack 53. This causes the right fixed block 56 to lower and the left fixed block 56 to rise. Correspondingly, the right steering assembly 57 applies a downward pulling force to the right second fork 573 and the rotating seat 577 through its first fork 571 and cross shaft 572. The left steering assembly 57 applies an upward pushing force. These two opposing forces act together on the cross joint 43 through the four rotating seats 577, forming a cooperative force that causes it to tilt to the right. Finally, the cross joint 43, together with the irrigation nozzle 3, tilts to the right.

[0041] The nozzle of the irrigation nozzle 3 changes from vertical upward to tilted to the right, and the water flow is sprayed out at a larger angle, forming a wide and short fan-shaped coverage area, realizing uniform irrigation of a large area. During this process, the extension pipes 575 on the left and right sides slide relative to each other along the extension groove 574, and the first telescopic spring 576 extends and retracts accordingly to adapt to the change in the length of the connecting rod and maintain the rigidity of the transmission.

[0042] When long-distance irrigation is needed, the principle is the same. The control system commands the front drive motor 51 to reverse and lower the front vertical rack 53, and commands the rear drive motor 51 to rotate forward and raise the rear vertical rack 53. The front and rear steering components 57 work on the same principle, and the resulting combined force causes the cross joint 43 and the irrigation nozzle 3 to tilt forward; the nozzle of the irrigation nozzle 3 changes from vertically upward to tilted forward. At this time, the water flow is concentrated and sprayed out at a smaller angle, with a longer range, for precise and long-range irrigation of rows of crops.

[0043] After the irrigation operation is completed, the control system first closes the electric butterfly valve 42. Then, if the nozzle is tilted, the tilting mechanism 5 will first use the differential forward and reverse rotation of the drive motor 51 to restore the height of the four vertical racks 53 to the same. During this process, the four sets of steering components 57 work together to push the cross joint 43 back to the center, so that the nozzle of the irrigation nozzle 3 returns to the vertical upward state. Then, all the drive motors 51 reverse synchronously, and pull the cross joint 43 down through the transmission chain of the steering component 57, thereby compressing and contracting the telescopic bellows 4, and finally driving the irrigation nozzle 3 back into the irrigation seat 1.

[0044] During the process of the cross joint 43 moving the exhaust valve body 61 downwards, when the exhaust valve body 61 reaches a specific position, the top of the vertical pin 62 fixed in the fixing seat 63 on the inner wall of the receiving cavity 13 will abut against the bottom of the ball 612 in the exhaust valve body 61, and push the ball 612 upwards and move it, thereby opening the channel of the displacement groove 611. At this time, the internal space of the telescopic bellows 4 is connected to the outside atmosphere through the ventilation hole 44 on the cross joint 43 and the displacement groove 611, and finally through the exhaust port 613, establishing air pressure balance. Subsequently, under the continuous drive of the drive motor 51, the telescopic bellows 4 is compressed and contracted, its internal volume decreases, and the remaining water is quickly discharged from the bottom insertion pipe 41 through this opened exhaust channel under the action of its own gravity and the pressure difference between the inside and outside. This achieves rapid and thorough drainage, prevents water accumulation and stagnation or freezing, and ensures the durability and hygiene of the device.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A smart water-saving irrigation device applicable to multiple irrigation ranges, comprising an irrigation seat (1), an irrigation main pipe (2) penetrating the bottom of the irrigation seat (1), a telescopic corrugated pipe (4) communicating with the irrigation main pipe (2), and an irrigation nozzle (3) installed on the top of the telescopic corrugated pipe (4), characterized in that: It also includes a tilting mechanism (5) and a cleaning mechanism (6) installed inside the irrigation seat (1). The irrigation seat (1) has an internal cavity (13). The tilting mechanism (5) includes multiple vertical racks (53) slidably connected to the inner wall of the cavity (13). The multiple vertical racks (53) are arranged in a cross shape around the telescopic bellows (4). The top of each of the multiple vertical racks (53) is fixedly connected to a fixing block (56). A cross joint (43) is threaded between the telescopic bellows (4) and the irrigation nozzle (3). A steering component (57) is provided between the cross joint (43) and the multiple fixing blocks (56). When one of the fixing blocks (56) is raised and the opposite fixing block (56) is lowered, the spraying direction of the irrigation nozzle (3) is adjusted by the steering component (57).

2. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 1, characterized in that: The cleaning mechanism (6) includes an exhaust valve body (61) fixedly connected to the cross joint (43). The inner wall of the exhaust valve body (61) is provided with a displacement groove (611). A ball bearing (612) is rolledly connected to the inner wall of the displacement groove (611). An exhaust port (613) is provided at the bottom of the exhaust valve body (61). A ventilation hole (44) is provided between the cross joint (43) and the telescopic bellows (4). The telescopic bellows (4) and the exhaust port (613) are connected through the ventilation hole (44) and the displacement groove (611).

3. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 2, characterized in that: The cleaning mechanism (6) further includes a fixed seat (63) fixedly connected to the inner wall of the receiving cavity (13). The inner wall of the fixed seat (63) is provided with a retractable groove (64). A vertical pin (62) is slidably connected to the inner wall of the retractable groove (64). A second telescopic spring (65) is fixedly connected between the bottom of the vertical pin (62) and the inner wall of the retractable groove (64). When the exhaust valve body (61) moves down, the top of the vertical pin (62) abuts against the bottom of the ball (612).

4. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 1, characterized in that: The steering assembly (57) includes a second fork (573) and a rotating seat (577). A first telescopic spring (576) is fixedly connected between the second fork (573) and the rotating seat (577). The end of the rotating seat (577) away from the second fork (573) is rotatably connected to a cross joint (43). An extension tube (575) is fixedly connected to the outer wall of the rotating seat (577). An extension groove (574) is provided on the outer wall of the second fork (573). The extension tube (575) and the second fork (573) are slidably connected through the extension groove (574).

5. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 4, characterized in that: The steering assembly (57) further includes a first fork (571) and a cross shaft (572). The first fork (571) is fixedly connected to the end of the fixing block (56) near the cross joint (43). The cross shaft (572) is located between the first fork (571) and the corresponding second fork (573). Both the first fork (571) and the second fork (573) are rotatably connected to the cross joint (43).

6. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 1, characterized in that: The irrigation seat (1) is also provided with multiple motor cavities (12). A drive motor (51) is fixedly connected to the inner wall of the motor cavity (12). The output shaft of the drive motor (51) is fitted with a drive gear (52). The drive gear (52) is located inside the receiving cavity (13). The drive gear (52) meshes with the corresponding vertical rack (53).

7. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 6, characterized in that: The inner wall of the receiving cavity (13) is provided with a vertical slide groove (55), and the outer wall of the vertical rack (53) is fixedly connected to a limiting slide plate (54). The outer wall of the limiting slide plate (54) is slidably connected to the inner wall of the vertical slide groove (55).

8. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 1, characterized in that: An electric butterfly valve (42) is fixedly connected to the bottom of the telescopic corrugated pipe (4), and multiple ground-inserting pipes (41) are connected to the bottom of the telescopic corrugated pipe (4). All of the multiple ground-inserting pipes (41) penetrate the irrigation seat (1) and extend outward.

9. The intelligent water-saving irrigation device applicable to multiple irrigation ranges according to claim 1, characterized in that: The top of the irrigation seat (1) is equipped with a dustproof electric door (11).

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