Water-saving irrigation equipment for agriculture

Abstract

The application provides an agricultural water-saving irrigation device, which comprises a water outlet assembly and a switching mechanism, the switching mechanism is connected between the water outlet assembly and a water source, the water outlet assembly is distributed on both sides of crops, and the water outlet assembly is used for changing the water amount flowing to each side, so that the water flow on one side is more than that on the other side or irrigation is only performed on one side, and the switching is completed in each irrigation. The switching mechanism is installed on a bearing frame through a switching assembly, the bearing frame is fixed to the ground by a support frame, one side of the bearing frame is connected with the water source, and the other side of the bearing frame is connected with the water outlet assembly. Through periodic switching, alternating irrigation of root zones on both sides can be realized, asymmetric distribution of water in the root zones is formed, the root system is promoted to develop to a deep layer and a wide width, and water absorption efficiency is improved. The switched water enters a water distribution shell through a shunt assembly and is uniformly distributed, even if there is local pressure loss or a non-sealed gap, the stable supply of irrigation water is ensured, and therefore, irrigation uniformity, water-saving efficiency and system reliability are improved.

Description

Technical Field

[0001] This invention relates to the field of alternating irrigation, specifically to agricultural water-saving irrigation equipment. Background Technology

[0002] In existing agricultural irrigation technologies, traditional irrigation methods such as flood irrigation or furrow irrigation typically provide uniform watering to the entire irrigated area in a single application, making it difficult to precisely supply water according to the actual water needs of the crop root zone. These methods can easily lead to uneven soil distribution, with one side of the soil becoming excessively wet or the other side insufficiently moist, resulting in uneven water distribution, differences in crop growth, and water waste. Especially in water-scarce or arid regions, traditional irrigation methods have low water-use efficiency and fail to meet the needs of water-saving irrigation.

[0003] In recent years, low-pressure precision irrigation technologies such as drip irrigation and micro-sprinkler irrigation have been widely used to improve water use efficiency and irrigation uniformity. Drip irrigation systems can deliver water directly to the crop root zone, achieving localized and precise water supply, thereby significantly reducing evaporation loss and seepage waste. However, most existing drip irrigation or micro-sprinkler irrigation systems use constant water supply or simple timed control, and the problems of long-term unilateral water supply or irrigation water imbalance still exist.

[0004] To address this issue, alternating irrigation technology has been proposed. Its core concept is to periodically adjust the distribution of irrigation water in different root zones or irrigated areas, allowing water to be supplied alternately to both sides of the crop or between different areas. This avoids prolonged wetting on one side, promotes balanced root growth, and further improves the uniformity of irrigation coverage and overall water use efficiency. Existing alternating irrigation technologies mostly rely on manual operation or electronic control equipment for switching, resulting in complex systems, high costs, and difficulty in implementation in some low-pressure or decentralized irrigation scenarios.

[0005] Therefore, there is still a need for an irrigation method that can achieve differentiated water allocation in a single irrigation and automatically switch between different irrigation cycles, so as to improve water-saving efficiency and reduce system complexity while ensuring balanced crop growth, and be applicable to various irrigation modes such as drip irrigation, micro-sprinkler irrigation and low-pressure sprinkler irrigation. Summary of the Invention

[0006] In order to solve the problems of uneven water distribution in the crop root zone and long-term unilateral wetting leading to uneven irrigation and water waste in traditional irrigation methods, as well as the technical defects of existing drip irrigation or micro-sprinkler irrigation systems that are difficult to achieve automatic alternating water supply and differentiated water volume control, this invention provides a water-saving irrigation device that can achieve differentiated water distribution on both sides of the crop in a single irrigation and automatically alternate between different irrigation cycles, specifically an agricultural water-saving irrigation device.

[0007] The present invention solves the above-mentioned technical problems through the following technical solutions: This invention provides an agricultural water-saving irrigation device, including a water outlet component and a switching mechanism. The switching mechanism is connected between the water outlet component and a water source. The water outlet component is distributed on both sides of the crop. The switching mechanism switches and changes the amount of water flowing to both sides of the crop through the water outlet component, so that one side has more water than the other side or one side is irrigated while the other side is not irrigated. The switching is performed once each time irrigation is carried out. The switching mechanism includes a switching component, which is mounted on a support frame. The support frame is mounted on the ground via a support frame. One side of the switching component is connected to a water source, and the other side is connected to a water outlet component.

[0008] By varying the amount of water poured onto each side of the crop during each irrigation cycle, ensuring that one side receives more water than the other, or by irrigating one side while temporarily withholding water from the other, an asymmetrical distribution of water in the root zone is achieved. This method can be combined with an alternating switching mechanism, where a larger volume of water is redirected to the other root zone in subsequent irrigation cycles, enabling periodic rotation of the irrigated areas. This differentiated, alternating water supply not only avoids uneven water distribution or soil moisture imbalances caused by long-term unilateral irrigation but also promotes the expansion of crop roots into wider and deeper areas, improving water use efficiency. Furthermore, because the irrigation water is evenly distributed within the water distribution shell, the crop root zone receives a stable and sufficient supply of irrigation water, thus achieving a dual optimization of water conservation and irrigation uniformity while ensuring irrigation effectiveness.

[0009] In this technical solution, the water outlet assembly includes a water distribution shell, and multiple evenly distributed nozzles are fixed on the bottom sidewall of the water distribution shell, with the nozzles distributed along the trajectory of the water distribution shell. The water distribution shell is suspended above the ground, and two water pipes are connected to the water distribution shell, forming two water delivery chambers that are not connected to each other. The water distribution shell is either a ring structure or composed of two parallel straight pipe structures.

[0010] The water-bearing shell can be anchored to the ground with ground anchors while remaining suspended in the air. Ground anchors can also be installed at the bottom of the support frame to anchor it to the ground.

[0011] The ring-shaped water distribution shell has notches, and two water pipes are connected to the two notches respectively. The ring-shaped water distribution shell is fitted around the crop plant. In this technical solution, the two straight pipe structures constituting the water distribution shell are respectively connected to two water guide pipes, and the two straight pipe structures are respectively set on both sides of the crops planted in rows.

[0012] Preferably, the two straight pipe structures have multiple outwardly curved areas at corresponding locations, which can be fitted onto the surface of crops of medium size and distributed in rows, thereby improving the targeted nature of irrigation.

[0013] In this technical solution, the top of the switching component is provided with a driving part that can temporarily store water. The driving part is installed on the support frame. After the driving part stores water, it moves vertically downward. The downward-moving driving part drives the switching component to switch the water flow size to both sides of the water outlet component.

[0014] In this technical solution, the switching mechanism further includes a diversion component, which is located at the bottom of the switching component. The switching component guides the irrigation water with asymmetrical volume into the diversion component, and then guides it to both sides of the outlet component through the diversion component.

[0015] The switching component is used to alternately switch the water output of the two irrigation channels, so that the irrigation water is supplied to one side with a larger volume during each switching process, and the larger volume is switched to the other side in the next switching, or one side is irrigated first, and the other side is irrigated in the next switching, thus realizing alternating irrigation of the two irrigation areas. The irrigation water after switching then enters the water distribution shell through the diversion component, and is evenly distributed in the water distribution shell.

[0016] In this technical solution, the drive unit includes a water storage shell, which is located on top of the switching assembly. A telescopic pipe is fixed at the center of the top side wall of the water storage shell. The bottom end of the telescopic pipe communicates with the inner cavity of the water storage shell, and the end of the telescopic pipe is connected to an external pipe for connecting an external water pump and a water source. At least two first guide telescopic rods distributed vertically are fixed on the top of the water storage shell. The two first guide telescopic rods are fixed on the support frame. A return spring is sleeved on the surface of the first guide telescopic rod, and the two ends of the return spring are respectively fixed to the two ends of the first guide telescopic rod. The bottom of the water storage tank is connected to a thin water outlet tube that communicates with its inner cavity.

[0017] In this technical solution, the switching component includes a support ring, on which a rotatable distribution shell is provided. The distribution shell is located below the drive unit. The drive unit moves down to push the transmission unit to drive the distribution shell to rotate. The guide pipe at the bottom of the distribution shell rotates accordingly, changing the position of the guide pipe, thereby completing the switching of water output.

[0018] In this technical solution, the transmission unit includes two centrally symmetrical drive arc plates with a symmetry angle of 180°. The top of each drive arc plate has a drive ramp, and the cross-section of the drive arc plate is a circular arc structure. The drive arc plates are slidably connected to the top side wall of the bearing ring along the circular arc trajectory. The top of each of the two drive arc plates is provided with a vertically distributed drive component, and the bottom of the drive component slides on the drive ramp after the drive unit descends, thereby pushing the drive arc plate to slide. The sliding drive arc plate drives the distribution shell to rotate. No lateral movement is detected in the drive component during the downward movement. A transmission component is provided on the inner outer wall of the drive arc plate. The rotating drive arc plate connects with one of the multiple transmission plates on the outer wall of the distribution shell through the transmission component, pushing the distribution shell to rotate in one direction. During the process of the drive part moving upward back to its original position, the drive arc plate returns to its original position through the reset component.

[0019] As the water storage tank moves downward, the continuously moving drive component abuts against the drive ramp. The drive ramp then pushes the drive arc plate to slide in an arc-shaped trajectory. The drive arc plate drives the distribution shell to rotate through the transmission component, thereby causing the bottom of the distribution pipe to change position and switch the irrigation water flow on both sides of the water distribution shell.

[0020] In this technical solution, the transmission component includes a fixed rod, which is fixed to the inner outer wall of the drive arc plate. A drive plate is rotatably connected to the end of the drive arc plate. The drive plate, which moves with the drive arc plate, can overlap with the transmission plate. A coil spring is provided at the rotatable connection between the drive plate and the fixed rod, and the two ends of the coil spring are respectively fixed to the drive plate and the fixed rod. It also includes a limiting rod, one end of which is fixed to the outer wall of the fixed rod near the lower side of the drive slope, and the other end is attached to the outer wall of the drive plate.

[0021] The limiting plate ensures that the drive plate can only rotate towards the higher side of the drive ramp. As the drive arc plate slides relative to the drive ramp and the transmission block, the drive plate moves accordingly. After the moving drive plate engages with the transmission plate, it causes the distribution shell to rotate. When the water reservoir on the drive section returns to its original position under the action of the return spring, the drive arc plate also returns to its original position via the reset component. The drive plate also resets along with the drive arc plate. During the reset process, the drive plate moves to the previous transmission plate and passes it, preparing for the next switch. When passing the transmission plate, the drive plate rotates, and the coil spring deforms. After passing, the coil spring returns to its original deformation, causing the drive plate to engage with the limiting rod. At this point, the drive plates are radially distributed along the circular trajectory of the drive arc plate's movement. The transmission plates are distributed in the same direction, and all the transmission plates are arranged in a ring array on the outer wall of the distribution shell.

[0022] In this technical solution, the distribution shell passes through the bearing ring, and the bottom of the bearing ring is fixedly installed with a ring-shaped second guide rail through multiple fourth connecting rods. Multiple second guide sliders are slidably connected to the surface of the second guide rail, and the second guide sliders are fixed to the bottom side wall of the distribution shell through a fifth connecting rod.

[0023] The bottom of the distribution shell is connected to two or four guide tubes arranged in a ring array.

[0024] In this technical solution, the diversion assembly includes a first diversion shell and a second diversion shell, and the first diversion shell and the second diversion shell are respectively connected to the ends of two water guide pipes through a first diversion pipe and a second diversion pipe; In this technical solution, there are also an even number of flow guide shells, and the flow guide shells are arranged in a ring array. Two adjacent flow guide shells are connected to the first flow divider shell and the second flow divider shell respectively through different connecting pipes. The number of flow guide shells is consistent with the multiple obtained by dividing the angle of a single rotation of the distribution shell by 360°.

[0025] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0026] The positive and progressive effects of this invention are as follows: By varying the water volume on both sides of the crop during each irrigation cycle, ensuring that one side receives more water than the other, or irrigating only one side while temporarily ignoring the other, an asymmetrical distribution of water in the root zone is created during a single irrigation. Combined with the periodic operation of the switching component, a larger volume of water can be redirected to the other root zone in subsequent irrigation cycles, achieving alternating irrigation of the two sides. This alternating switching method avoids uneven soil moisture, imbalanced root zone water distribution, or differences in crop growth caused by long-term unilateral water supply. Furthermore, the periodic, asymmetrical water supply stimulates the crop root system to develop deeper and wider, improving root water absorption efficiency.

[0027] Furthermore, the switched irrigation water enters the water distribution shell through the diversion component, achieving uniform water distribution within the shell. This ensures a stable irrigation water supply to all points in the root zone, and even localized pressure losses or non-sealed gaps in the counterweight shell will not affect the irrigation effect. This design not only ensures that the crop receives an appropriate amount of water in each root zone but also naturally forms an alternating rhythm based on changes in irrigation water volume and crop water requirements, significantly improving irrigation uniformity and stability. Simultaneously, by combining differentiated water volume with periodic alternation in a single irrigation, water waste is reduced, irrigation water use efficiency is improved, water conservation goals are achieved, and dependence on irrigation system pressure and energy consumption is reduced, thereby enhancing the overall reliability and economy of the irrigation system. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the water distribution shell of the present invention when it is a ring structure; Figure 2 For the present invention Figure 1 A front view structural diagram; Figure 3 For the present invention Figure 1 A schematic diagram of the structure viewed from below; Figure 4 For the present invention Figure 1 A structural diagram from another perspective; Figure 5This is a schematic diagram of the overall structure of the water distribution shell of the present invention when it consists of two straight tubular structures; Figure 6 For the present invention Figure 5 A schematic diagram of the structure viewed from below; Figure 7 This is a schematic diagram of the switching mechanism of the present invention; Figure 8 For the present invention Figure 8 Schematic diagram of the structure after the concealed support frame is removed; Figure 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point I; Figure 10 For the present invention Figure 8 A magnified schematic diagram of the structure at point J; Figure 11 This is a schematic diagram of the switching component of the present invention; Figure 12 For the present invention Figure 11 A schematic diagram of the structure viewed from below; Figure 13 This is a schematic diagram of the structure of the current splitter component of the present invention.

[0029] Explanation of reference numerals in the attached figures 1. Water distribution shell; 11. Sprinkler head; 12. Water guide pipe; 2. Support frame; 3. Support frame; 31. Support plate; 32. Support rod; 33. Connecting plate; 4. Water storage tank; 41. Outlet capillary tube; 42. First guide telescopic rod; 43. Telescopic pipe; 44. External pipe; 5. Switching assembly; 51. Bearing ring; 52. Distribution shell; 521. Transmission plate; 522. Guide pipe; 53. Drive arc plate; 531. Drive inclined surface; 532. Fixing rod; 533. Drive plate; 534. Limiting rod; 54. First guide slider; 541. First connecting rod; 55. First guide rail; 551. Second connecting rod; 56. Second guide telescopic rod; 561. Third connecting rod; 57. Second guide rail; 571. Fourth connecting rod; 58. Second guide slider; 581. Fifth connecting rod; 59. Transmission vertical rod; 591. Transmission block; 6. Diverter assembly; 61. First diverter housing; 611. First connecting pipe; 612. First guide housing; 613. First diverter pipe; 62. Second diverter housing; 621. Second connecting pipe; 622. Second guide housing; 623. Second diverter pipe; 63. Crossbar. Detailed Implementation

[0030] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0031] like Figure 1 and Figure 2 As shown, the agricultural water-saving irrigation equipment includes a water outlet component and a switching mechanism. The switching mechanism is connected between the water outlet component and the water source. The water outlet component is distributed on both sides of the crop. The switching mechanism switches and changes the amount of water flowing to both sides of the crop through the water outlet component, so that the water flow on one side is more than that on the other side or one side is irrigated while the other side is not irrigated. The switching is performed once every time irrigation is carried out. The switching mechanism includes a switching component 5, which is mounted on a support frame 3. The support frame 3 is mounted on the ground via a support frame 2. One side of the switching component 5 is connected to an external water source, and the other side is connected to the water outlet component.

[0032] By varying the amount of water poured onto each side of the crop during each irrigation, the system can ensure that, in a single irrigation session, one side of the crop receives more water than the other, or one side is irrigated while the other side remains unirrigated.

[0033] Example 1 In this embodiment, as Figures 1-6 As shown, the water outlet assembly includes a water distribution shell 1, and multiple evenly distributed nozzles 11 are fixed on the bottom side wall of the water distribution shell 1. The nozzles 11 are distributed along the trajectory of the water distribution shell 1. The water distribution shell 1 is suspended above the ground, and two water pipes 12 are connected to the water distribution shell 1, forming two water delivery chambers that are not connected to each other. The water distribution shell 1 is a ring structure or consists of two parallel straight pipe structures.

[0034] The water-filled shell 1 can be anchored to the ground with ground anchors while remaining suspended in the air. Ground anchors can also be installed at the bottom of the support frame 2 to anchor it to the ground.

[0035] When the water distribution shell 1 is a ring structure, a partition plate is fixed near the center of the inner cavity on the side of the inner cavity away from the water guide pipe 12, and the inner cavity of the water distribution shell 1 is divided into two water distribution chambers by the partition plate.

[0036] like Figure 1 and Figure 5 As shown, the ring-shaped water distribution shell 1 has a notch, and two water pipes 12 are connected to the two notches respectively. The ring-shaped water distribution shell 1 is fitted around the crop plant. The two straight pipe structures that make up the water distribution shell 1 are connected to the two water pipes 12 respectively, and the two straight pipe structures are respectively set on both sides of the crops planted in rows.

[0037] The ring-shaped water distribution shell 1 is suitable for crops with large plant volume, such as mature fruit trees. The water distribution shell 1 is placed on the outside of the main stem of the crop, close to the ground. The water distribution shell 1 is supported by a deformable material, which makes it easy to fit around the main stem through a notch. The water pipe 12 is connected to the water distribution shell 1 by a detachable structure, such as by threaded connection, flange connection or direct sleeve.

[0038] Preferably, the two straight pipe structures have multiple outwardly curved areas at corresponding locations, which can fit over the surface of crops of medium size and distributed in rows, thereby improving the targeted nature of irrigation.

[0039] Example 2 like Figure 7 As shown, the top of the switching component 5 is provided with a drive unit that can temporarily store water. The drive unit is installed on the support frame 3. After the drive unit stores water, it moves vertically downward. The downward-moving drive unit drives the switching component 5 to switch the water flow size to both sides of the water outlet component.

[0040] During irrigation, water from the water source is pumped into the irrigation water circuit and delivered to the drive unit through the external pipe 44. The irrigation water stays briefly inside the drive unit before entering the switching component 5. Because the amount of water entering the drive unit is greater than the amount of water discharged during the initial stage of irrigation and during continuous irrigation, the drive unit is always kept in a water-filled state during irrigation, and its overall weight gradually increases with the increase of water storage.

[0041] As the weight of the drive unit increases, the spring force of the return spring is effectively overcome, causing the drive unit to move downwards. This movement is triggered and drives the drive unit to start operating during irrigation, thus achieving automatic start-up during irrigation. By utilizing the weight change of the irrigation water itself as the driving force source, the drive unit can start automatically without additional control or energy input. This simplifies the system structure, improves the automation level and operational reliability of the irrigation process, and reduces energy consumption and control complexity.

[0042] The switching mechanism also includes a diversion component 6, which is located at the bottom of the switching component 5. The switching component 5 guides the irrigation water with asymmetrical volume into the diversion component 6, and then guides it to both sides of the outlet component through the diversion component 6.

[0043] The switching component 5 is used to alternately switch the water output of the irrigation channels on both sides, so that the irrigation water is supplied to one side with a larger volume in each switching process, and the larger volume is switched to the other side in the next switching, or one side is irrigated first, and the other side is irrigated in the next switching, thereby realizing alternating irrigation of the two irrigation areas. The irrigation water after switching then enters the water distribution shell 1 through the diversion component 6, and is evenly distributed in the water distribution shell 1.

[0044] By using the above-mentioned alternating switching and irrigation methods, irrigation water can be periodically rotated between the two irrigation areas, avoiding uneven irrigation or water distribution imbalance caused by long-term unilateral water supply. At the same time, it is conducive to achieving natural rhythmic alternating irrigation based on changes in water volume during the irrigation process, improving the uniformity and stability of irrigation coverage, and enhancing overall water use efficiency while ensuring irrigation effect.

[0045] The drive unit includes a water storage tank 4, which is located on top of the switching assembly 5. A telescopic pipe 43 is fixed at the center of the top side wall of the water storage tank 4. The bottom end of the telescopic pipe 43 communicates with the inner cavity of the water storage tank 4. The end of the telescopic pipe 43 is connected to an external pipe 44 for connecting an external water pump and a water source. At least two vertically distributed first guide telescopic rods 42 are fixed on the top of the water storage tank 4. The two first guide telescopic rods 42 are fixed on the support frame 3. A return spring is sleeved on the surface of the first guide telescopic rod 42. The two ends of the return spring are respectively fixed to the two ends of the first guide telescopic rod 42. The bottom of the water storage tank 4 is connected to a thin water outlet tube 41 that communicates with its inner cavity.

[0046] Irrigation water enters the inner cavity of the water storage tank 4 through the outer pipe 44. The water in the inner cavity of the water storage tank 4 flows out through the outlet capillary tube 41 at its bottom. Since the amount of water flowing out of the outlet capillary tube 41 is less than the amount of water entering the water storage tank 4, the weight of the water storage tank 4 increases, which overcomes the elastic force of the return spring and moves downward, and the drive unit starts to run.

[0047] When irrigation ends, the irrigation water inside the water storage tank 4 only flows out and does not flow in. As its weight gradually decreases, it returns to its original position under the action of the reset spring, and the drive unit returns to the standby state.

[0048] During the downward movement of the water storage tank 4, the telescopic tube 43 and the first guide telescopic rod 42 extend, and the reset spring deforms.

[0049] The diameter of the outlet capillary tube 41 should be such that the inflow of water into the water storage tank 4 is greater than the outflow, and at the same time, it should be ensured that at the beginning of irrigation, the water storage tank 4 rotates sufficiently to move to its limit position.

[0050] like Figure 11 and Figure 12 As shown, the switching component 5 includes a support ring 51, on which a rotatable distribution shell 52 is provided. The distribution shell 52 is located below the drive unit. When the drive unit moves down, it pushes the transmission unit to drive the distribution shell 52 to rotate. The guide pipe 522 at the bottom of the distribution shell 52 rotates accordingly, changing the position of the guide pipe 522, thereby completing the switching of water output.

[0051] The transmission unit includes two centrally symmetrical drive arc plates 53 with a symmetry angle of 180°. The top of the drive arc plate 53 is provided with a drive inclined surface 531. The cross-section of the drive arc plate 53 is a circular arc structure. The drive arc plate 53 is slidably connected to the top side wall of the bearing ring 51 along the circular arc trajectory. The top of the two drive arc plates 53 is provided with drive members distributed vertically. The bottom of the drive members slides on the drive inclined surface 531 after the drive unit descends, thereby pushing the drive arc plate 53 to slide. The sliding drive arc plate 53 drives the distribution shell 52 to rotate. No lateral movement is found in the drive members during the downward movement. A transmission component is provided on the inner outer wall of the drive arc plate 53. The rotating drive arc plate 53 connects with one of the multiple transmission plates 521 on the outer wall of the distribution shell 52 through the transmission component, pushing the distribution shell 52 to rotate in one direction. During the process of the drive unit moving upward back to its original position, the drive arc plate 53 returns to its original position through the reset component.

[0052] As the water storage shell 4 moves downward, the continuously moving drive component abuts against the drive inclined surface 531. Through the drive inclined surface 531, it pushes the drive arc plate 53 to slide in an arc-shaped trajectory. The drive arc plate 53 drives the distribution shell 52 to rotate through the transmission component, thereby causing the bottom of the distribution pipe to change position and switch the irrigation water flow on both sides of the water distribution shell 1.

[0053] like Figure 9 As shown, the transmission component includes a fixed rod 532, which is fixed to the inner outer wall of the drive arc plate 53. A drive plate 533 is rotatably connected to the end of the drive arc plate 53. The drive plate 533, which moves with the drive arc plate 53, can overlap with the transmission plate 521. A coil spring is provided at the rotatable connection between the drive plate 533 and the fixed rod 532. The two ends of the coil spring are fixed to the drive plate 533 and the fixed rod 532, respectively. It also includes a limiting rod 534, one end of which is fixed to the outer wall of the fixing rod 532 near the lower side of the drive slope 531, and the other end is attached to the outer wall of the drive plate 533.

[0054] The limiting plate ensures that the drive plate 533 can only rotate towards the higher side of the drive ramp 531. When the drive arc plate 53 moves relative to the drive ramp 531 and the transmission block 591, the drive plate 533 also moves. After the moving drive plate 533 engages with the transmission plate 521, it drives the distribution shell 52 to rotate. When the water storage shell 4 on the drive unit returns to its original position under the action of the return spring, the drive arc plate 53 also returns to its original position through the reset member. The drive plate 533 also resets along with the drive arc plate 53. During the reset process, the drive plate 533 moves to the previous transmission plate 521 and passes over the transmission plate 521 to prepare for the next switch. When passing over the transmission plate 521, the drive plate 533 rotates and the coil spring deforms. After passing over, the coil spring returns to its original deformation and drives the drive plate 533 to engage with the limit rod 534. At this time, the drive plate 533 is radially distributed along the circular trajectory of the drive arc plate 53. The distribution direction of the transmission plates 521 is the same as above, and all the transmission plates 521 are arranged in a ring array on the outer wall of the distribution shell 52.

[0055] like Figure 8 As shown, the driving component includes a transmission vertical rod 59, which is fixed on the outer wall of the driving part, that is, fixed on the outer wall of the water storage shell 4. A transmission block 591 is fixed at the bottom of the transmission vertical rod 59. The transmission block 591 is a cylindrical structure and is arranged along the axial direction of the sliding arc trajectory of the driving arc plate 53. When the water storage shell 4 is in its original position under the action of the return spring, the transmission block 591 is located at the top of the highest point of the driving inclined surface 531 or overlaps with the highest point.

[0056] When the water tank 4 moves down, the transmission vertical rod 59 and the transmission block 591 move down synchronously. The transmission block 591 slides from the highest point of the driving inclined surface 531 to the lowest point. At this time, the water tank 4 descends to the limit position, and in this process, it pushes the driving arc plate 53 to move.

[0057] The descent of the water tank 4 to its extreme position can be limited by fixing the maximum length of the first guide telescopic rod 42 or by setting a limiting plate on the descent path of the water tank 4. The limiting plate is fixed at a suitable position on the support frame 2 or the bearing frame 3.

[0058] like Figure 8 and Figure 10 As shown, the driving arc plate 53 is fixed on the first guide slider 54 by the first connecting rod 541. The first guide slider 54 is slidably connected to the first guide rail 55, which has an arc-shaped structure. The first guide rail 55 is fixed on the bearing ring 51 by the second connecting rod 551.

[0059] The reset component is located on one side of the first guide rail 55. The reset component includes a second guide telescopic rod 56 with an arc-shaped structure. The second guide telescopic rod 56 is coaxially arranged with the first guide rail 55. An arc-shaped spring is sleeved on the surface of the second guide telescopic rod 56. The two ends of the arc-shaped spring are respectively fixed to the two ends of the second guide telescopic rod 56. One end of the second guide telescopic rod 56 is fixed to the bearing ring 51 through the third connecting rod 561, and the other end is fixed to the driving arc plate 53 or the first connecting rod 541.

[0060] When the driving arc plate 53 is pushed to slide on the first guide rail 55 by the downward-moving driving member, the second guide telescopic rod 56 extends or shortens, at which time the arc spring deforms. When the driving member moves upward, the driving arc plate 53 returns to its original position under the elastic force of the arc spring restoring its deformation.

[0061] like Figure 12 As shown, the distribution shell 52 passes through the bearing ring 51. The bottom of the bearing ring 51 is fixedly mounted with an annular second guide rail 57 by a plurality of fourth connecting rods 571. A plurality of second guide sliders 58 are slidably connected to the surface of the second guide rail 57. The second guide sliders 58 are fixed to the bottom side wall of the distribution shell 52 by a fifth connecting rod 581.

[0062] The bottom of the distribution shell 52 is connected to two or four guide tubes 522 arranged in a ring array.

[0063] Irrigation water enters the distribution shell 52 through the water storage shell 4, and is guided to the diversion component 6 through the guide pipe 522 at the bottom of the distribution shell 52.

[0064] Furthermore, when there are four guide tubes 522, the outlet diameter of two of the four guide tubes 522 that are centrally symmetrical and have a symmetry angle of 180° is smaller than the outlet diameter of the other two guide tubes 522.

[0065] When the distribution shell 52 rotates, it drives the second guide slider 58 to slide on the second guide rail 57. The sliding connection between the second guide slider 58 and the second guide rail 57 is used to support the distribution shell 52 and provide a structural foundation for the rotation of the distribution shell 52.

[0066] like Figure 13 As shown, the diversion assembly 6 includes a first diversion shell 61 and a second diversion shell 62, and the first diversion shell 61 and the second diversion shell 62 are respectively connected to the ends of the two water guide pipes 12 through the first diversion pipe 613 and the second diversion pipe 623. It also includes an even number of flow guide shells, which are arranged in a ring array. Two adjacent flow guide shells are connected to the first flow divider shell 61 and the second flow divider shell 62 respectively through different connecting pipes. The number of flow guide shells is consistent with the multiple obtained by dividing the angle of a single rotation of the distribution shell 52 by 360°. Specifically, when the angle of rotation of the distribution shell 52 is 45°, the number of flow guide shells is 8; when the rotation angle is 60°, the number of flow guide shells is 6; and when the rotation angle is 90°, the number of flow guide shells is 4.

[0067] Preferably, the number of flow guide shells is between 4 and 8.

[0068] The diversion component 6 is located on the top side of the outlet component.

[0069] Specifically, the guide shell and connecting pipe connected to the first flow divider shell 61 are the first flow divider shell 612 and the first connecting pipe 611; the guide shell and connecting pipe connected to the second flow divider shell 62 are the second flow divider shell 622 and the second connecting pipe 621.

[0070] The first diversion shell 61 and the second diversion shell 62 are fixed to the support frame 3 or the support ring 51 by rods.

[0071] The drive arc plate 53, the first guide rail 55, the second guide telescopic rod 56, the second guide rail 57, the transmission plate 521 arranged in a ring array, the guide pipe 522 arranged in a ring array, and the diverter shell arranged in a ring array are all coaxially arranged.

[0072] Initially, each guide pipe 522 corresponds to a guide shell and is located directly above the corresponding guide shell. Each downward movement of the drive unit pushes two or four guide pipes 522 to rotate unidirectionally, i.e., switch to the top of the next guide shell. Thus, the irrigation water flowing out of the guide pipe 522 will not re-enter the first diversion shell 61 or the second diversion shell 62 that it entered before after the drive unit runs once, thereby realizing the switching of water volume. The irrigation water that enters the first diversion shell 61 and the second diversion shell 62 flows into the water distribution shell 1 through the first diversion pipe 613 and the second diversion pipe 623.

[0073] When there are four diversion pipes 522, the irrigation water volume on both sides is asymmetrical. The side with the smaller outlet diameter of the diversion pipe 522 is the side with less irrigation water. When there are two diversion pipes 522, the plant can be irrigated on one side and not on the other side.

[0074] The support frame 3 includes a support plate 31, and support rods 32 arranged vertically are fixed on both sides of the support plate 31. The two support rods 32 are fixedly connected to each other by a connecting plate 33. The connecting plate 33 is fixed to the top of the support frame 2, and the support ring 51 is fixed to the bottom of the two support rods 32.

[0075] Specifically, the first guide telescopic rod 42 is fixed to the bottom end of the bearing plate 31, and the bottom end of the first guide telescopic rod 42 is fixed to the top side wall of the water storage tank 4.

[0076] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. Agricultural water-saving irrigation equipment, characterized in that: It includes a water outlet component and a switching mechanism. The switching mechanism is connected between the water outlet component and the water source. The water outlet component is distributed on both sides of the crop. The switching mechanism switches and changes the amount of water flowing to both sides of the crop through the water outlet component, so that one side has more water than the other side or one side is irrigated while the other side is not irrigated. The switching mechanism includes a switching component (5), which is mounted on a support frame (3). The support frame (3) is mounted on the ground via a support frame (2). One side of the switching component (5) is connected to a water source, and the other side is connected to a water outlet component.

2. The agricultural water-saving irrigation equipment as described in claim 1, characterized in that: The water outlet assembly includes a water distribution shell (1), and a plurality of uniformly distributed nozzles (11) are fixed on the bottom side wall of the water distribution shell (1). The nozzles (11) are distributed along the trajectory of the water distribution shell (1). The water distribution shell (1) is suspended above the ground, and two water pipes (12) are connected to the water distribution shell (1). The water distribution shell (1) forms two water conveying chambers that are not connected to each other. The water distribution shell (1) is a ring structure or is composed of two parallel straight pipe structures.

3. The agricultural water-saving irrigation equipment as described in claim 2, characterized in that: The ring-shaped water distribution shell (1) has a notch, and two water pipes (12) are connected to the two notches respectively. The ring-shaped water distribution shell (1) is fitted around the crop plant. The two straight pipe structures constituting the water distribution shell (1) are respectively connected to two water guide pipes (12), and the two straight pipe structures are respectively set on both sides of the crops planted in rows.

4. The agricultural water-saving irrigation equipment as described in claim 1, characterized in that: The top of the switching component (5) is provided with a driving part that can temporarily store water. The driving part is installed on the support frame (3). After the driving part stores water, it moves vertically downward. The moving driving part drives the switching component (5) to switch the water flow to both sides of the water outlet component.

5. The agricultural water-saving irrigation equipment as described in claim 4, characterized in that: The switching mechanism also includes a diversion component (6), which is located at the bottom of the switching component (5). The switching component (5) guides the irrigation water with asymmetrical volume into the diversion component (6), and through the diversion component (6) guides it to both sides of the outlet component.

6. The agricultural water-saving irrigation equipment as described in claim 4, characterized in that: The drive unit includes a water storage shell (4), which is located on top of the switching assembly (5). A telescopic tube (43) is fixed on the top of the water storage shell (4). At least two first guide telescopic rods (42) are fixed on the top of the water storage shell (4). The two first guide telescopic rods (42) are fixed on the support frame (3). A reset spring is sleeved on the surface of the first guide telescopic rods (42). The bottom of the water storage shell (4) is connected to a water outlet tube (41).

7. The agricultural water-saving irrigation equipment as described in claim 4, characterized in that: The switching component (5) includes a support ring (51) on which a rotatable distribution shell (52) is provided. The distribution shell (52) is located below the drive unit. The drive unit moves down to push the transmission unit to drive the distribution shell (52) to rotate. The guide pipe (522) at the bottom of the distribution shell (52) rotates accordingly, changing the position of the guide pipe (522).

8. The agricultural water-saving irrigation equipment as described in claim 7, characterized in that: The transmission unit includes two centrally symmetrically arranged drive arc plates (53). The top of the drive arc plates (53) is provided with a drive slope (531). The drive arc plates (53) are slidably connected to the bearing ring (51) along an arc-shaped trajectory. The top of the two drive arc plates (53) is provided with drive members distributed vertically, and the bottom of the drive members slides on the drive slope (531) after the drive unit descends. A transmission component is provided on the inner outer wall of the drive arc plate (53). The rotating drive arc plate (53) is connected to one of the multiple transmission plates (521) on the outer wall of the distribution shell (52) through the transmission component.

9. The agricultural water-saving irrigation equipment as described in claim 8, characterized in that: The distribution shell (52) passes through the bearing ring (51). The bottom of the bearing ring (51) is fixedly installed with a ring-shaped second guide rail (57) by a plurality of fourth connecting rods (571). A plurality of second guide sliders (58) are slidably connected to the surface of the second guide rail (57). The second guide sliders (58) are fixed on the bottom side wall of the distribution shell (52). The bottom of the distribution shell (52) is connected to two or four guide tubes (522) arranged in a ring array.

10. The agricultural water-saving irrigation equipment as described in claim 5, characterized in that: The diversion assembly (6) includes a first diversion shell (61) and a second diversion shell (62), and the first diversion shell (61) and the second diversion shell (62) are respectively connected to the ends of two water guide pipes (12) through a first diversion pipe (613) and a second diversion pipe (623); It also includes an even number of flow guide shells, and the flow guide shells are arranged in a ring array. Two adjacent flow guide shells are connected to the first flow divider shell (61) and the second flow divider shell (62) respectively through different connecting pipes. The number of the flow guide shells is the same as the multiple obtained by dividing the angle of a single rotation of the distribution shell (52) by 360°.

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