An agricultural alternating irrigation sprinkler system

Abstract

This invention relates to the field of agricultural irrigation technology and discloses an alternating irrigation sprinkler system for agriculture. It includes a diversion pipe with two fixed plates fixedly connected inside. Adjustment plates are rotatably connected to opposite sides of the two fixed plates. A rotating shaft extends movably through the diversion pipe and is connected to the adjustment plates via a transmission mechanism. A rotating column is fixedly connected to the upper end of the rotating shaft. Multiple transmission grooves are evenly spaced in a ring on the rotating column. A transmission plate is installed inside a water tank. The rising of the buoyancy chamber drives the transmission plate, which in turn drives the rotating column to rotate. Utilizing the potential energy and buoyancy of the water level in the storage area, the system achieves intermittent alternating water supply between the irrigation connection pipes at both ends of the diversion pipe. It eliminates the need for electrical control, sensors, and external power, significantly reducing energy consumption and equipment costs. This aligns with the energy-saving and low-carbon requirements of green agriculture. The automatic switching is achieved through the linkage of water flow and mechanical structure, ensuring stable and reliable operation, reducing malfunctions and maintenance, and making it suitable for complex field environments in remote areas without power grids.

Description

Technical Field

[0001] This invention relates to the field of agricultural irrigation technology, and more particularly to an alternating irrigation sprinkler system for agriculture. Background Technology

[0002] Agricultural irrigation sprinkler systems use pumps, pipes, and nozzles to atomize and spray water, achieving water-saving irrigation. Alternating irrigation sprinkler systems, building upon this, employ zoned rotational irrigation and alternating near and far spraying patterns, allowing for on-demand water supply, further saving water and improving the crop root growth environment.

[0003] Existing systems typically employ two independent irrigation channels corresponding to the root zones on either side of the crop, switching between channels to achieve alternating water supply. Switching methods include both electronic and manual methods, but both have significant drawbacks. Electronic control systems rely on electricity, making them difficult to implement in remote areas without power grids or with unstable power supply. Furthermore, electronic components such as solenoid valves and controllers are expensive and prone to failure under prolonged exposure to the high temperature, humidity, and dusty environment of the field, requiring frequent maintenance and replacement, thus increasing the burden on farmers. Manual systems do not require electricity, but rely on manual, timed operation, resulting in low efficiency, high labor costs, and difficulty in ensuring the accuracy and periodicity of switching timing. In large-scale planting or labor shortage scenarios, it is impossible to implement scientific irrigation systems, leading to a significant reduction in water-saving effects.

[0004] These problems directly limit the widespread adoption of alternating irrigation technology. Due to the lack of low-cost, highly reliable, and energy-independent automated switching devices, many farmlands with water-saving potential still use traditional irrigation methods, resulting in water waste. At the same time, existing solutions cannot guarantee precise alternation cycles and wet-dry transitions, failing to fully utilize the technology's physiological water-saving mechanisms, thus limiting the improvement of crop water use efficiency. Summary of the Invention

[0005] Given that existing alternating irrigation electronic control systems rely on electricity, are costly and prone to failure, and manual switching is time-consuming and inaccurate, all of which limit the promotion of the technology, an agricultural alternating irrigation sprinkler system is proposed.

[0006] Its purpose is to use water level and buoyancy to drive the regulating plate to switch directions and control water flow, and to achieve intelligent alternating irrigation through pure mechanical linkage.

[0007] The technical solution of this invention is an alternating irrigation sprinkler device for agriculture, comprising a diversion pipe, a water source connection pipe fixedly connected to the middle of the diversion pipe, irrigation connection pipes fixedly connected to both ends of the diversion pipe, two fixed plates fixedly connected inside the diversion pipe, and an adjusting plate rotatably connected to one side of each of the two fixed plates. Multiple through holes are evenly spaced in a ring on both the fixed plates and the adjusting plates. A water tank is disposed above the diversion pipe, and the water tank contains a water storage area and a cavity area. A water inlet pipe is fixedly connected to the upper end of the water storage area and the water source connection pipe. A buoyancy chamber is vertically slidably connected within the water storage area, and a rotatable chamber is located within the cavity area. A rotating shaft is connected, with its lower end extending movably into the diversion pipe and connected to the regulating plate. A rotating column is fixedly connected to the upper end of the rotating shaft, and multiple transmission grooves are equally spaced in a ring on the rotating column. A transmission plate is installed inside the water tank. When the buoyancy chamber rises, it drives the transmission plate to rotate the rotating column. A drain pipe is fixedly connected between the end of the diversion pipe and the lower end of the water storage area. Two baffles are vertically slidably connected to the inner wall of the water storage area. The baffles have an I-shaped structure, and their lower ends block the upper end of the drain pipe. An extension plate is hinged to the upper end of the baffles. When the buoyancy chamber rises, it abuts against the extension plate, causing the baffles to rise.

[0008] Furthermore, multiple guide rods are vertically fixedly connected within the water storage area of ​​the water tank, and the buoyancy chamber is slidably connected to the guide rods.

[0009] Furthermore, the rotating shaft is rotatably and sealed to the diverter pipe, a drive gear is fixedly connected to the lower end of the rotating shaft, and a driven gear is fixedly connected to the opposite side of each of the two adjusting plates, with the drive gear and the driven gear meshing together.

[0010] Furthermore, the transmission groove includes an inclined groove portion, the upper end of which is connected to a vertical portion, and the lower end of the vertical portion is provided with a guide groove; the transmission plate is slidably connected to the guide rod, and two drive rods are hinged to one end of the transmission plate near the rotating column, with one end of the drive rod disposed in the corresponding inclined groove portion.

[0011] Furthermore, a fixed seat is fixedly connected to the inner wall of the water storage area, and a limit block is slidably connected to the fixed seat. Multiple elastic elements are fixedly connected between the limit block and the fixed seat, and the bottom of the limit block is set with an incline.

[0012] Furthermore, a top plate is slidably connected to the inside of the water tank, a first transmission gear is fixedly connected to the upper end of the rotating column, a second transmission gear is meshed with one side of the first transmission gear, the second transmission gear is rotatably connected to the water tank, and a fixed rod is eccentrically connected to the bottom of the second transmission gear, the fixed rod is slidably engaged with an elongated hole opened on the top plate.

[0013] Furthermore, the cross-sectional dimensions of the inlet pipe are smaller than those of the outlet pipe.

[0014] Furthermore, a needle valve is installed on the water inlet pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Utilizing the potential energy and buoyancy of the water level formed by the water storage area, the buoyancy chamber drives the rotating column to rotate as it rises. By changing the overlap state of the through holes of the two sets of fixed plates and adjusting plates, the intermittent alternating water supply of the irrigation connection pipes at both ends of the diversion pipe can be achieved. No electrical control, sensors, or external power drive are required, which greatly reduces energy consumption and equipment costs. It meets the requirements of green agriculture for energy conservation and low carbon emissions. The automatic switching is completed by the linkage of water flow and mechanical structure. The operation is stable and reliable, reducing failures and maintenance. It is suitable for complex field environments in remote areas without power grids.

[0017] 2. When the rotating column rotates, it drives the top plate to move horizontally, so that one end of the top plate abuts against the corresponding extension plate. When the buoyancy chamber rises, it contacts the extension plate, which drives the water baffle plate connected to it to rise, opening the corresponding drainage pipe and directing the stored water back to the pipeline where the water supply has been suspended. This realizes the recycling of water resources, significantly reduces waste, improves the uniformity and accuracy of irrigation, and achieves synergistic benefits of water conservation, increased production, and environmental protection. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the diversion tube of the present invention;

[0020] Figure 3 This is a schematic diagram showing the disassembled structure of the fixing plate and adjusting plate of the present invention;

[0021] Figure 4 This is a schematic plan view of the internal structure of the water tank of the present invention;

[0022] Figure 5 This is a schematic diagram of the transmission plate and rotating column structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the water baffle and drainage pipe structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the fixing seat and limiting block structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the top plate and extension plate structure of the present invention.

[0026] In the picture:

[0027] 1. Diversion pipe; 2. Water source connection pipe; 3. Irrigation connection pipe; 4. Fixing plate; 5. Adjusting plate; 6. Water tank; 7. Inlet pipe; 8. Guide rod; 9. Buoyancy chamber; 10. Rotating shaft; 11. Rotating column; 12. Driven gear; 13. Transmission groove; 131. Inclined groove section; 132. Vertical section; 133. Guide groove; 14. Transmission plate; 15. Drive rod; 16. Fixing seat; 17. Limiting block; 18. Drainage pipe; 19. Water baffle; 20. Extension plate; 21. Top plate; 22. Transmission gear one; 23. Transmission gear two; 24. Fixing rod; 25. Needle valve; 26. Drive gear. Detailed Implementation

[0028] 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.

[0029] Example 1, referring to Figures 1-6 This invention provides a first embodiment of an agricultural alternating irrigation sprinkler system, comprising a diversion pipe 1, a water source connection pipe 2 fixedly connected to the middle of the diversion pipe 1, irrigation connection pipes 3 fixedly connected to both ends of the diversion pipe 1, two fixed plates 4 fixedly connected inside the diversion pipe 1, and an adjusting plate 5 rotatably connected to opposite sides of the two fixed plates 4. Multiple through holes are equally spaced in a ring on both the fixed plates 4 and the adjusting plate 5. A water tank 6 is disposed above the diversion pipe 1, and the water tank 6 contains a water storage area and a cavity area. A water inlet pipe 7 is fixedly connected to the upper end of the water storage area and the water source connection pipe 2. A buoyancy chamber 9 is vertically slidably connected within the water storage area, and a rotating shaft 10 is rotatably connected within the cavity area. The lower end of the shaft 10 extends movably into the diversion pipe 1 and is connected to the regulating plate 5. A rotating column 11 is fixedly connected to the upper end of the shaft 10. Multiple transmission grooves 13 are equally spaced in a ring on the rotating column 11. A transmission plate 14 is installed inside the water tank 6. When the buoyancy chamber 9 rises, it drives the transmission plate 14 to rotate the rotating column 11. A drain pipe 18 is fixedly connected between the end of the diversion pipe 1 and the lower end of the water storage area. Two baffle plates 19 are vertically slidably connected to the inner wall of the water storage area. The baffle plates 19 have an I-shaped structure. The lower end of the baffle plates 19 blocks the upper end of the drain pipe 18. An extension plate 20 is hinged to the upper end of the baffle plates 19. When the buoyancy chamber 9 rises, it abuts against the extension plate 20, causing the baffle plates 19 to rise.

[0030] Specifically, irrigation water is connected to the diversion pipe 1 through the water source connection pipe 2. The irrigation connection pipes 3 at both ends of the diversion pipe 1 are used to connect the sprinkler assembly to realize irrigation operations. Multiple through holes with equal spacing on the fixed plate 4 and the adjusting plate 5 can realize the passage and closure of water flow at both ends of the diversion pipe 1 (one set of through holes on the fixed plate 4 and the adjusting plate 5 coincides, so that end of the diversion pipe 1 is in the through state; the other set of through holes on the fixed plate 4 coincides with the solid part of the adjusting plate 5, so that end of the diversion pipe 1 is in the closed state). Part of the water flow in the water source connection pipe 2 flows into the water storage area through the water inlet pipe 7, and the buoyancy chamber 9 can follow the flow. The water level in the storage area rises and falls synchronously. When the water level rises, the buoyancy chamber 9 slides upward under the action of buoyancy. The rising buoyancy chamber 9 drives the transmission plate 14 to move. The moving transmission plate 14 drives the rotating column 11 to rotate through the transmission groove 13. The rotating column 11 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the adjusting plate 5 to rotate relative to the fixed plate 4, switching the open and closed states at both ends of the diversion pipe 1. At the same time, the buoyancy chamber 9 abuts against the extension plate 20, causing the baffle plate 19 to rise, connecting the storage area with the diversion pipe 1, so that the water in the storage area is discharged into the diversion pipe 1. Through the lifting and lowering of the buoyancy chamber 9, the rotation of the adjusting plate 5 and the sliding of the baffle plate 19 are linked to achieve intelligent regulation of water flow and water circulation control. No additional power is required, which is energy-saving and environmentally friendly, meeting the needs of green agricultural development. At the same time, the alternating irrigation mode can accurately regulate the irrigation water volume according to the water requirements of crops, improve water resource utilization, reduce water waste, and has a compact structure, stable and reliable operation, and convenient maintenance.

[0031] Reference Figure 4 Multiple guide rods 8 are vertically fixedly connected within the water storage area of ​​water tank 6, and buoyancy chamber 9 is slidably connected to the guide rods 8.

[0032] Specifically, multiple guide rods 8 vertically fixed within the water storage area of ​​the water tank 6 provide vertical sliding guide support for the buoyancy chamber 9. The buoyancy chamber 9 slides in cooperation with the guide rods 8, enabling the buoyancy chamber 9 to maintain a stable vertical movement trajectory along the extension direction of the guide rods 8 when rising and falling with the water level in the water storage area. This prevents the buoyancy chamber 9 from tilting or getting stuck due to water flow impact or its own center of gravity shift, ensuring precise and reliable transmission between the buoyancy chamber 9 and the transmission plate 14 and extension plate 20. This, in turn, ensures that the rotation adjustment of the regulating plate 5 and the sliding control of the baffle plate 19 can be carried out stably and smoothly.

[0033] Reference Figure 2 The rotating shaft 10 is sealed and rotatably connected to the diverter pipe 1. The lower end of the rotating shaft 10 is fixedly connected to the drive gear 26. The two adjusting plates 5 are fixedly connected to the opposite side of each other, and the drive gear 26 and the driven gear 12 are meshed together.

[0034] Specifically, the driving gear 26 fixedly connected to the lower end of the rotating shaft 10 meshes with the driven gear 12 fixedly connected to the opposite side of the two adjusting plates 5. When the rotating shaft 10 rotates under the drive of the rotating column 11, the rotating shaft 10 drives the driving gear 26 to rotate. The rotating driving gear 26 drives the two driven gears 12 to rotate through meshing transmission, thereby driving the two adjusting plates 5 to rotate relative to the corresponding fixed plates 4, so as to realize the water flow through or closed state of the irrigation connecting pipes 3 at both ends of the diversion pipe 1.

[0035] It should be noted that, refer to Figure 3 A sealing plate is fixedly connected to one side of both the fixed plate 4 and the corresponding adjusting plate 5. The two sealing plates slide in contact. Through the sliding contact of the two sealing plates, a seal can be formed between the fixed plate 4 and the adjusting plate 5, so as to prevent the water in the diversion pipe 1 from leaking through the gap between the fixed plate 4 and the adjusting plate 5.

[0036] Reference Figure 5 The transmission groove 13 includes an inclined groove 131, the upper end of which is connected to a vertical part 132, and the lower end of the vertical part 132 is provided with a guide groove 133; the transmission plate 14 is slidably connected to the guide rod 8, and two drive rods 15 are hinged to one end of the transmission plate 14 near the rotating column 11, and one end of the drive rod 15 is set in the corresponding inclined groove 131.

[0037] Specifically, the inclined groove 131 provides a transmission contact surface for the drive rod 15 in an inclined direction, and the guide rod 8 provides a vertical sliding guide for the transmission plate 14. When the transmission plate 14 rises, the drive rod 15 generates a lateral force through the sliding contact with the inclined groove 131, thereby driving the rotating column 11 to rotate. The vertical part 132 provides a buffer space for the remaining upward movement of the transmission plate 14. When the transmission plate 14 falls, the drive rod 15 descends along the guide groove 133 and leaves the current transmission groove 13, and then enters the next adjacent transmission groove 13. This realizes the conversion of the up-and-down reciprocating motion of the transmission plate 14 into the directional intermittent rotation of the rotating column 11. Each time the rotating column 11 rotates, the water flow of the irrigation connection pipes 3 at both ends of the diversion pipe 1 is switched between the open and closed states.

[0038] Reference Figure 6 , Figure 7 A fixed seat 16 is fixedly connected to the inner wall of the water storage area. A limit block 17 is slidably connected to the fixed seat 16. Multiple elastic elements are fixedly connected between the limit block 17 and the fixed seat 16. The bottom of the limit block 17 is set with an inclined surface.

[0039] Specifically, during its ascent, the buoyancy chamber 9 abuts against the inclined surface of the limiting block 17, and at this time, the buoyancy chamber 9 is not in contact with the transmission plate 14. As the water level in the storage area gradually rises, the buoyancy of the buoyancy chamber 9 gradually increases until it overcomes the elastic force of the elastic element. The buoyancy chamber 9 then rises rapidly, driving the transmission plate 14 to rise, thereby enabling the drive rod 15 to quickly rotate the rotating column 11. Through the cooperation of the limiting block 17 and the elastic element, the buoyancy chamber 9 is limited before reaching the set water level. Only when the buoyancy accumulates sufficiently to overcome the elastic force does it rise rapidly instantaneously, forming a trigger-type action. This effectively avoids malfunction of the regulating plate 5 due to small fluctuations in water level, ensuring stable and accurate switching between alternating irrigation. The instantaneous rise allows the drive rod 15 to quickly rotate the rotating column 11, achieving rapid and decisive switching of the irrigation pipeline, avoiding water supply chaos caused by slow flow regulation, and improving equipment operational reliability and irrigation control accuracy.

[0040] Reference Figure 1 , Figure 4 A needle valve 25 is installed on the water inlet pipe 7.

[0041] Specifically, the needle valve 25 is used to precisely adjust the water flow rate in the inlet pipe 7. By rotating the adjustment component of the needle valve 25, the cross-sectional area of ​​its internal flow channel can be changed, thereby controlling the water flow speed of the water source entering the water storage area of ​​the water tank 6 through the inlet pipe 7. It can flexibly adjust the cycle and amplitude of the rise and fall of the water level in the storage area, realize the personalized adaptation of the rising and falling rhythm of the buoyancy chamber 9, and meet the differentiated needs of water flow rate adjustment speed and alternating irrigation cycle under different crop irrigation scenarios.

[0042] Example 2, refer to Figure 8 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a top plate 21 is slidably connected to the inside of the water tank 6, a transmission gear 22 is fixedly connected to the upper end of the rotating column 11, a transmission gear 23 is meshed on one side of the transmission gear 22, the transmission gear 23 is rotatably connected to the water tank 6, and a fixing rod 24 is eccentrically connected to the bottom of the transmission gear 23. The fixing rod 24 is slidably engaged with the elongated hole opened on the top plate 21.

[0043] Specifically, when the rotating column 11 rotates under the drive of the buoyancy chamber 9, the rotating column 11 drives the transmission gear 22 to rotate synchronously. The transmission gear 22 drives the transmission gear 23 to rotate through meshing transmission. The fixed rod 24, which is eccentrically set at the bottom of the transmission gear 23, then makes a circular motion. The fixed rod 24 slides with the elongated hole on the top plate 21, converting the circular motion into the lateral reciprocating sliding of the top plate 21. So that every time the rotating column 11 completes one rotation, the top plate 21 abuts against the extension plate 20 on the corresponding side and pushes the extension plate 20 to flip upward. When the buoyancy chamber 9 rises, its top surface contacts the extension plate 20 and drives the water baffle 19 connected to it to rise upward, so that the drain pipe 18 corresponding to the lower end of the water baffle 19 opens. The water in the water storage area flows through the drain pipe 18 to the irrigation connection pipe 3, which is in a stopped water supply state, to realize the recycling and reuse of water and avoid water waste. This structure achieves precise conversion of motion through gear meshing and eccentric transmission. The lateral movement of the top plate 21 enables directional drive of the extension plate 20 and the baffle plate 19. In conjunction with the lifting and lowering action of the buoyancy chamber 9, the selective conduction of the drainage pipe 18 is completed, realizing alternating water supply and water recycling of the single-sided irrigation connection pipe 3. The transmission is reliable and the action is coordinated, which significantly improves the water resource utilization rate and reduces irrigation energy consumption. The structure is compact and does not require the participation of an electrical control unit. It is stable in operation and has a low failure rate, further enhancing the intelligent control capability and green energy-saving characteristics of the equipment.

[0044] Understandably, referring to Figure 4 , Figure 6 The length of the lower horizontal part of the baffle plate 19 is greater than the length of the upper horizontal part of the baffle plate 19. When the buoyancy chamber 9 follows the water level in the water storage area and drops, the bottom of the buoyancy chamber 9 gradually contacts the lower horizontal part of the baffle plate 19, thereby causing the baffle plate 19 to drop and block the drain pipe 18 port corresponding to the baffle plate 19. At this time, the drainage channel of the water storage area is closed, and the water inlet pipe 7 adds water to the water storage area again to perform the next channel state switch of the irrigation connection pipe 3.

[0045] Reference Figure 4 The cross-sectional dimensions of the inlet pipe 7 are smaller than those of the drain pipe 18.

[0046] Specifically, the inflow rate of water from the water source into the water storage area of ​​the water tank 6 via the inlet pipe 7 is less than the outflow rate of water returning to the diversion pipe 1 via the drain pipe 18 from the storage area, thus creating a stable water level rise and fall rhythm during equipment operation. The remaining structure is the same as that in Embodiment 1.

[0047] Based on embodiments 1-2, the working principle of this invention is as follows: This device is based on the concept of green agriculture and achieves intelligent alternating irrigation through mechanical linkage. Water is connected to the diversion pipe 1 via the water source connection pipe 2, and then transported to the spray assembly via the irrigation connection pipe 3. Simultaneously, some water from the water source connection pipe 2 enters the water storage area of ​​the water tank 6 through the inlet pipe 7. The buoyancy chamber 9 moves synchronously with the water level. When the buoyancy chamber 9 rises, it drives the transmission plate 14 to rise. Through the cooperation of the transmission plate 14 and the transmission groove 13 of the rotating column 11, the rotating shaft 10 is driven to rotate. The rotating shaft 10 meshes with the driven gear 12 through the driving gear 26, driving the adjusting plate 5 to rotate relative to the fixed plate 4, thereby adjusting the open or closed state of the diversion pipe 1 and the irrigation connection pipe 3. When the buoyancy chamber 9 rises, it simultaneously drives the corresponding baffle plate 19 to rise, opening the drain pipe 18 and directing the stored water to the irrigation connection pipe 3 on the off-supply side to achieve water source recovery.

[0048] 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. An agricultural alternating irrigation sprinkler system, comprising a diversion pipe (1), wherein a water source connection pipe (2) is fixedly connected to the middle of the diversion pipe (1), and irrigation connection pipes (3) are fixedly connected to both ends of the diversion pipe (1), characterized in that, Two fixed plates (4) are fixedly connected inside the diversion pipe (1). An adjusting plate (5) is rotatably connected to one side of each of the two fixed plates (4). Multiple through holes are opened in a ring at equal intervals on both the fixed plates (4) and the adjusting plate (5). A water tank (6) is set above the diversion pipe (1). The water tank (6) is provided with a water storage area and a cavity area. The upper end of the water storage area is fixedly connected to the water source connection pipe (2) by a water inlet pipe (7). The water storage area is vertically slidably connected. A buoyancy chamber (9) is connected to the cavity area, and a rotating shaft (10) is rotatably connected thereto. The lower end of the rotating shaft (10) extends through the diversion pipe (1) and is connected to the regulating plate (5) in a transmission. A rotating column (11) is fixedly connected to the upper end of the rotating shaft (10). Multiple transmission grooves (13) are opened in a ring at equal intervals on the rotating column (11). A transmission plate (14) is provided in the water tank (6). When the buoyancy chamber (9) rises, it drives the transmission plate (14) to drive the rotating column (11) to rotate. The end of the diversion pipe (1) and the lower end of the water storage area are connected by a drain pipe (18). The inner wall of the water storage area is vertically slidably connected to two baffles (19). The baffles (19) are in the shape of an I-beam. The lower end of the baffles (19) blocks the upper end of the drain pipe (18). The upper end of the baffles (19) is hinged to an extension plate (20). When the buoyancy chamber (9) rises, it abuts against the extension plate (20) and drives the baffles (19) to rise.

2. The agricultural alternating irrigation sprinkler system according to claim 1, characterized in that, The water tank (6) has multiple guide rods (8) vertically fixedly connected in the water storage area, and the buoyancy chamber (9) is slidably connected to the guide rods (8).

3. The agricultural alternating irrigation sprinkler system according to claim 1, characterized in that, The rotating shaft (10) is sealed and rotatably connected to the diverter pipe (1). The lower end of the rotating shaft (10) is fixedly connected to the drive gear (26). The two adjusting plates (5) are fixedly connected to the driven gears (12) on opposite sides. The drive gear (26) and the driven gear (12) are meshed together.

4. The agricultural alternating irrigation sprinkler system according to claim 2, characterized in that, The transmission groove (13) includes an inclined groove (131), the upper end of which is connected to a vertical part (132), and the lower end of the vertical part (132) is provided with a guide groove (133). The transmission plate (14) is slidably connected to the guide rod (8). Two drive rods (15) are hinged to one end of the transmission plate (14) near the rotating column (11). One end of the drive rod (15) is set in the corresponding inclined groove (131).

5. The agricultural alternating irrigation sprinkler system according to claim 1, characterized in that, A fixed seat (16) is fixedly connected to the inner wall of the water storage area. A limit block (17) is slidably connected inside the fixed seat (16). Multiple elastic members are fixedly connected between the limit block (17) and the fixed seat (16). The bottom of the limit block (17) is set with an inclined surface.

6. The agricultural alternating irrigation sprinkler system according to claim 1, characterized in that, The water tank (6) is slidably connected to a top plate (21). A transmission gear one (22) is fixedly connected to the upper end of the rotating column (11). A transmission gear two (23) is meshed with one side of the transmission gear one (22). The transmission gear two (23) is rotatably connected to the water tank (6). A fixing rod (24) is eccentrically connected to the bottom of the transmission gear two (23). The fixing rod (24) is slidably engaged with the elongated hole on the top plate (21).

7. The agricultural alternating irrigation sprinkler system according to claim 1, characterized in that, The cross-sectional dimensions of the inlet pipe (7) are smaller than those of the drain pipe (18).

8. The agricultural alternating irrigation sprinkler system according to claim 1, characterized in that, A needle valve (25) is installed on the water inlet pipe (7).

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