Irrigation device for intermittently and alternately irrigating

Abstract

The invention relates to the technical field of agricultural irrigation, and particularly discloses an intermittent and alternate irrigation device which comprises an irrigation water tank and a fixing mechanism. An irrigation mechanism is installed on the lower portion of the outer wall of the irrigation water tank, a cleaning mechanism is installed in the middle of the top end of the irrigation water tank in a penetrating mode, and the multiple fixing mechanisms are arranged. The irrigation mechanism comprises a water pump, a flow dividing pipe, an alternate water supply mechanism, a connecting plate, a driver, a first bevel gear, a second bevel gear and a spline shaft, the water pump is installed on the lower portion of the outer wall of the irrigation water tank in a penetrating mode, and the flow dividing pipe is installed in the middle of the outer wall of the water pump; the water pump is started to input water into the flow dividing pipe, then the driver is used for driving, meshing transmission of the first bevel gear and the second bevel gear is matched, the spline shaft is made to rotate, then the multiple alternate water supply mechanisms are driven to be alternately opened and closed at intervals, a ditch separation irrigation mode is formed, through intermittent water supply, invalid evaporation and leakage of irrigation water are reduced, and the irrigation efficiency is improved. And the utilization efficiency of irrigation water is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural irrigation, and particularly relates to an irrigation device for intermittent alternate irrigation. Background Art

[0002] An irrigation device is a mechanical equipment or system used in planting areas such as gardens and fields to convey water. Its core function is to control the water flow to achieve precise and efficient irrigation. Essentially, an irrigation device is a highly specialized water resource distribution tool. With the help of delicate physical structures such as sprinkler heads and drip heads, according to the actual water requirements of crops, water is accurately conveyed to the vicinity of crop roots at an appropriate speed and quantity to achieve the purpose of irrigating planting areas such as gardens and fields.

[0003] In the Chinese patent with the publication number CN205233030U, an agricultural field irrigation device is mentioned. This device has a simple structure, is easy to operate, and has strong practicability. It can well solve the problem of irrigation water in agricultural fields. At the same time, the device can draw river water or side water for irrigation, which is convenient and reliable to use. When used for irrigation, multiple water distribution buckets are arranged in the field as needed, and the water storage tank is placed in the empty area of the field. The spherical filter can be placed in the river and the river water is pumped through the water pump. After passing through the filter screen in the elbow pipe, it is stored in the water storage tank. Then, the water pump in the field is started to pump and spray. The water distribution bucket is connected to the short pipe by a bearing, and the water distribution bucket can be rotated by a rotating motor to achieve rotating spraying and irrigation, increasing the spraying area. However, the irrigation method of this irrigation device adopts a continuous water supply mode, that is, the water flow continuously enters the ditch field until irrigation is completed, resulting in the long-term wetness of the soil surface, easy to cause deep leakage, resulting in water resource waste, and the continuous water supply maintains a high soil water content, resulting in increased transpiration of crops and low water use efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an irrigation device for intermittent alternate irrigation, which can intermittently and alternately supply water to regulate soil humidity and solve the problems of water waste and low efficiency caused by continuous water supply.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An irrigation device for intermittent alternate irrigation, comprising:

[0007] An irrigation water tank and a fixing mechanism;

[0008] The lower part of the outer wall of the irrigation water tank is provided with an irrigation mechanism, the middle part of the top end of the irrigation water tank is inserted and installed with a cleaning mechanism, and multiple fixing mechanisms are provided;

[0009] The irrigation mechanism includes a water pump, a shunt pipe, an alternating water supply mechanism, a connecting plate, a driver, a first bevel gear, a second bevel gear and a spline shaft. The water pump is inserted and installed at the lower part of the outer wall of the irrigation water tank. The shunt pipe is installed in the middle of the outer wall of the water pump. There are multiple alternating water supply mechanisms, and multiple alternating water supply mechanisms are all installed on the outer wall of the shunt pipe. The connecting plate is installed between the opposite surfaces of the two middle alternating water supply mechanisms. The driver is installed at the bottom end of the connecting plate. The first bevel gear is installed at the top end of the connecting plate through a bearing. The spline shaft is inserted and installed between the upper parts of the outer surfaces of multiple alternating water supply mechanisms. The second bevel gear is installed in the middle of the outer surface of the spline shaft.

[0010] Preferably, support rods are installed at the four corners of the top end of the irrigation water tank, and the top ends of the four support rods are all installed on the outer surface of the cleaning mechanism. Protective covers are installed on both outer walls of the cleaning mechanism. A controller is installed on one side of the top end of the irrigation water tank. Multiple field watering pipes are installed on the outer wall of the irrigation mechanism, and multiple fixing mechanisms are installed on the outer surfaces of the multiple field watering pipes. Multiple irrigation nozzles are installed at the top ends of the multiple field watering pipes.

[0011] Preferably, the field watering pipes are long flexible hoses, and the multiple fixing mechanisms and the multiple irrigation nozzles are distributed alternately on the field watering pipes.

[0012] Preferably, the alternating water supply mechanism includes a protective box, a ball valve body, an adjusting rod, a worm gear, a positioning head and a worm. The ball valve body is inserted and installed between the two inner walls of the protective box, and the two ends of the ball valve body are respectively installed on the outer wall of the shunt pipe and one end of the field watering pipe. The adjusting rod is arranged in the middle of the top end of the ball valve body. The worm gear is installed in the middle of the outer surface of the adjusting rod. The positioning head is installed at the top end of the adjusting rod. The worm is installed between the opposite inner walls of the protective box through a bearing.

[0013] Preferably, the worm gear meshes with the worm. An installation hole matching the spline shaft is opened inside the worm. The first bevel gear meshes with the second bevel gear. The driver and the water pump are both electrically connected to the controller.

[0014] Preferably, the cleaning mechanism includes a diversion hopper, a filter screen, a driving shaft and driving paddles. The diversion hopper is inserted and installed in the middle of the top end of the irrigation water tank. The filter screen is installed at the top end of the diversion hopper. The driving shaft is installed between the two inner walls of the irrigation water tank through a bearing. The driving paddles are installed in the middle of the outer surface of the driving shaft.

[0015] Preferably, two driven shafts are installed between the inner walls on both sides of the diversion hopper through bearings. One ends of the two driven shafts and both ends of the driving shaft are equipped with pulleys, and synchronous belts are commonly sleeved and installed between the outer surfaces of adjacent pulleys. A plurality of cleaning blocks are installed on the outer surfaces of the two driven shafts.

[0016] Preferably, the plurality of cleaning blocks are spirally distributed on the outer surface of the driven shaft. The driving paddle is located directly below the water outlet of the diversion hopper, and the top surface of the diversion hopper is set as an inclined surface.

[0017] Preferably, the fixing mechanism includes a fixing plate, a limiting ring, a fixing frame and an adjusting handle. The limiting ring is inserted and installed in the middle of the top of the fixing plate, and the limiting ring is slidably installed on the outer surface of the field watering pipe. The fixing frame is inserted and installed between the two sides of the top of the fixing plate, and the adjusting handle is installed on the top of the fixing frame.

[0018] Preferably, the fixing frame is set as a U-shaped frame body, and the lower part of the outer surface of the fixing frame is set as a pointed structure.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) The present invention is provided with an irrigation mechanism on the outer surface of the irrigation water tank. By starting the water pump to input water into the shunt pipe and then driving by the driver, with the meshing transmission of the first bevel gear and the second bevel gear, the spline shaft rotates, thereby driving a plurality of alternating water supply mechanisms to open and close at intervals alternately, so as to form a ditch irrigation mode. This mode reduces the ineffective evaporation and leakage of irrigation water through intermittent water supply, and improves the utilization efficiency of irrigation water.

[0021] (2) The present invention is provided with a cleaning mechanism on the top of the irrigation water tank. Rainwater can be received through the diversion hopper, and after the rainwater is filtered by the filter screen to remove impurities, it is stored in the irrigation water tank. The collected rainwater can effectively save water resources, and when the water enters the irrigation water tank, it will impact the driving paddle, thereby driving a plurality of cleaning blocks to rotate automatically and knock on the filter screen, so as to automatically clean the sundries filtered out on the filter screen, reducing the maintenance cost and labor intensity.

[0022] (3) The present invention is provided with a fixing mechanism on the outer surface of the field watering pipe. By sliding the position of the limiting ring on the field watering pipe, the position of the fixing plate can be adjusted according to actual needs to avoid obstacles. Then, the fixing frame is passed through the fixing plate and inserted into the soil, and the field watering pipe can be firmly fixed to the field soil, improving the stability and reliability of the irrigation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional view of the present invention;

[0024] Figure 2 is the present inventionFigure 1 Enlarged view of A in

[0025] Figure 3 Isometric view of the irrigation mechanism of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged view of B in

[0027] Figure 5 Cross-sectional view of the alternating water supply mechanism of the present invention;

[0028] Figure 6 Isometric view of the cleaning mechanism of the present invention;

[0029] Figure 7 Isometric view of the transmission assembly of the present invention;

[0030] Figure 8 Isometric view of the fixing mechanism of the present invention;

[0031] In the figure: 1. Irrigation water tank; 2. Irrigation mechanism; 3. Cleaning mechanism; 4. Fixing mechanism; 5. Support rod; 6. Protective cover; 7. Controller; 8. Field watering pipe; 9. Irrigation nozzle;

[0032] 21. Water pump; 22. Shunt pipe; 23. Alternating water supply mechanism; 24. Connecting plate; 25. Driver; 26. First bevel gear; 27. Second bevel gear; 28. Spline shaft;

[0033] 231. Protective box; 232. Ball valve body; 233. Adjusting rod; 234. Worm gear; 235. Positioning head; 236. Worm;

[0034] 31. Deflector; 32. Filter screen; 33. Driving shaft; 34. Driving paddle; 35. Driven shaft; 36. Pulley; 37. Synchronous belt; 38. Cleaning block;

[0035] 41. Fixed plate; 42. Limiting ring; 43. Fixed frame; 44. Adjusting handle. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1:

[0038] Please refer to Figures 1 to 8 As shown, an intermittent alternating irrigation water application device includes:

[0039] Irrigation water tank 1 and fixing mechanism 4;

[0040] The lower part of the outer wall of the irrigation water tank 1 is provided with an irrigation mechanism 2, the middle part of the top end of the irrigation water tank 1 is inserted and installed with a cleaning mechanism 3, and a plurality of fixing mechanisms 4 are provided;

[0041] The irrigation mechanism 2 includes a water pump 21, a shunt pipe 22, an alternating water supply mechanism 23, a connecting plate 24, a driver 25, a first bevel gear 26, a second bevel gear 27 and a spline shaft 28. The water pump 21 is inserted and installed in the lower part of the outer wall of the irrigation water tank 1, the shunt pipe 22 is installed in the middle part of the outer wall of the water pump 21, a plurality of alternating water supply mechanisms 23 are provided, and a plurality of alternating water supply mechanisms 23 are all installed on the outer wall of the shunt pipe 22. The connecting plate 24 is installed between the opposite surfaces of the two middlemost alternating water supply mechanisms 23, the driver 25 is installed at the bottom end of the connecting plate 24, the first bevel gear 26 is installed at the top end of the connecting plate 24 through a bearing, the spline shaft 28 is inserted and installed between the upper parts of the outer surfaces of a plurality of alternating water supply mechanisms 23, and the second bevel gear 27 is installed in the middle part of the outer surface of the spline shaft 28.

[0042] It can be seen from Figures 1 to 5 that support rods 5 are installed at the four corners of the top end of the irrigation water tank 1, and the top ends of the four support rods 5 are all installed on the outer surface of the cleaning mechanism 3. Protective covers 6 are installed on both outer walls of the cleaning mechanism 3. A controller 7 is installed on one side of the top end of the irrigation water tank 1. A plurality of field watering pipes 8 are installed on the outer wall of the irrigation mechanism 2, and a plurality of fixing mechanisms 4 are installed on the outer surfaces of the plurality of field watering pipes 8. A plurality of irrigation nozzles 9 are installed at the top ends of the plurality of field watering pipes 8;

[0043] The alternating water supply mechanism 23 includes a protective box 231, a ball valve body 232, an adjusting rod 233, a worm gear 234, a positioning head 235 and a worm 236. The ball valve body 232 is inserted and installed between the inner walls on both sides of the protective box 231, and the two ends of the ball valve body 232 are respectively installed on the outer wall of the shunt pipe 22 and one end of the field watering pipe 8. The adjusting rod 233 is arranged in the middle of the top end of the ball valve body 232. The worm gear 234 is installed in the middle of the outer surface of the adjusting rod 233. The positioning head 235 is installed at the top end of the adjusting rod 233. The worm 236 is installed between the opposite inner walls of the protective box 231 through a bearing.

[0044] As can be seen from the above, when water needs to be irrigated to the fields, the controller 7 can be used to control the start of the water pump 21. The water pump 21 pumps water out of the irrigation water tank 1, and then the water is divided into multiple ball valve bodies 232 through the shunt pipe 22, so that the water flows into multiple irrigation nozzles 9 through the field watering pipe 8 and rotates and sprays out, so as to realize the watering and irrigation of the plants in the fields. The irrigation method of this irrigation device adopts an intermittent alternate irrigation mode in every other ditch. When there is water in one field watering pipe 8, the two adjacent field watering pipes 8 are without water. The controller 7 can be used to control the operation of the driver 25. Through the meshing transmission between the first bevel gear 26 and the second bevel gear 27, the spline shaft 28 drives multiple worm shafts 236 to rotate, and through the meshing transmission between the worm shaft 236 and the worm wheel 234, the adjusting rod 233 controls the closing of the ball valve body 232, and then controls the intermittent alternate opening and closing of multiple alternate water supply mechanisms 23 to form an alternate ditch irrigation mode. This mode reduces the ineffective evaporation and leakage of irrigation water through intermittent water supply, enables the irrigation water to be more evenly distributed in the farmland, improves the water absorption efficiency and growth quality of crops, and also improves the utilization efficiency of irrigation water.

[0045] Specifically, referring to Figures 1 to 5 As shown, the field watering pipe 8 is set as a long hose, and multiple fixing mechanisms 4 and multiple irrigation nozzles 9 are distributed alternately on the field watering pipe 8; the worm wheel 234 meshes with the worm shaft 236, an installation hole matching the spline shaft 28 is opened inside the worm shaft 236, the first bevel gear 26 meshes with the second bevel gear 27, and both the driver 25 and the water pump 21 are electrically connected to the controller 7.

[0046] As can be seen from the above, it is convenient for the field watering pipe 8 to be flexibly arranged and moved in the fields to adapt to different terrains and irrigation requirements. Through the alternate distribution, the irrigation range is more uniform, and the stability during irrigation can also be improved; the rotation of the worm shaft 236 can drive the worm wheel 234 to rotate and change the transmission direction. The installation hole allows the spline shaft 28 to be inserted into the worm shaft 236 and fixed, ensuring the stable and reliable power transmission between the worm shaft 236 and the spline shaft 28. The meshing between the bevel gears realizes the power transmission in the vertical direction, enabling the power of the driver 25 to be transmitted to the spline shaft 28, and allowing the controller 7 to control the start, stop and adjustment of the driver 25 and the water pump 21 to realize the intermittent alternate irrigation function.

[0047] Embodiment 2:

[0048] Referring to Figure 6 and Figure 7 As shown, the cleaning mechanism 3 includes a diversion hopper 31, a filter screen 32, a driving shaft 33 and a driving paddle 34. The diversion hopper 31 is inserted and installed in the middle of the top of the irrigation water tank 1, the filter screen 32 is installed at the top of the diversion hopper 31, the driving shaft 33 is installed between the inner walls on both sides of the irrigation water tank 1 through bearings, and the driving paddle 34 is installed in the middle of the outer surface of the driving shaft 33;

[0049] Between the inner walls on both sides of the diversion hopper 31, two driven shafts 35 are installed through bearings. At one end of the two driven shafts 35 and both ends of the driving shaft 33, pulleys 36 are installed. A synchronous belt 37 is commonly sleeved and installed between the outer surfaces of adjacent pulleys 36. A plurality of cleaning blocks 38 are installed on the outer surfaces of the two driven shafts 35.

[0050] As can be seen from the above, when it rains, rainwater can be received through the diversion hopper 31, and the filter screen 32 can block the diversion hopper 31 to prevent impurities from entering, ensuring the smooth flow of irrigation water. After the rainwater is filtered by the filter screen 32 to remove impurities, it flows into the irrigation water tank 1 for storage. By collecting rainwater, water resources can be effectively saved. And when the water enters the irrigation water tank 1, the water will impact the driving paddle 34, thereby driving the driving shaft 33 to rotate. At this time, the pulleys 36 and the synchronous belt 37 are driven, so that the two driven shafts 35 drive a plurality of cleaning blocks 38 on them to rotate simultaneously, and then drive the plurality of cleaning blocks 38 to rotate and strike the filter screen 32 to make it vibrate. Since the filter screen 32 is installed on the inclined surface of the diversion hopper 31, the impurities on the filter screen 32 are discharged under the action of gravity, so that the impurities filtered out on the filter screen 32 can be automatically cleaned without manual cleaning, reducing the maintenance cost and labor intensity.

[0051] Preferably, referring to Figure 6 and Figure 7 As shown, a plurality of cleaning blocks 38 are spirally distributed on the outer surface of the driven shaft 35. The driving paddle 34 is located directly below the water outlet of the diversion hopper 31. The top surface of the diversion hopper 31 is set as an inclined surface.

[0052] As can be seen from the above, through the spiral distribution, when the driven shaft 35 drives a plurality of cleaning blocks 38 to rotate, there is always a cleaning block 38 that can strike the filter screen 32, ensuring that the fluid flowing out of the diversion hopper 31 can directly impact the driving paddle 34, realizing the utilization of fluid power. The inclined surface is beneficial to the cleaning and discharge of impurities on the filter screen 32.

[0053] Embodiment Three:

[0054] Referring to Figure 8 As shown, the fixing mechanism 4 includes a fixing plate 41, a limiting ring 42, a fixing frame 43 and an adjusting handle 44. The limiting ring 42 is inserted and installed in the middle of the top of the fixing plate 41, and the limiting ring 42 is slidably installed on the outer surface of the field watering pipe 8. The fixing frame 43 is inserted and installed between the two sides of the top of the fixing plate 41. The adjusting handle 44 is installed on the top of the fixing frame 43.

[0055] As can be seen from the above, after the field watering pipe 8 is arranged between the fields, the movable limit ring 42 can be adjusted to adjust its position on the field watering pipe 8, so that the position of the fixed plate 41 can be adjusted according to actual needs to avoid obstacles and meet the use requirements. Then, hold the adjustment handle 44, pass the fixing frame 43 through the fixed plate 41, and insert the fixing frame 43 into the soil, and the field watering pipe 8 can be firmly fixed to the field soil. Using this fixing mechanism 4 can prevent the field watering pipe 8 and the irrigation nozzles 9 thereon from being displaced or damaged due to water flow impact or soil movement, improving the stability and reliability of the irrigation system, and also reducing the irrigation interruption and losses caused by the damage of the field watering pipe 8 and the irrigation nozzles 9.

[0056] Preferably, referring to Figure 8 As shown, the fixing frame 43 is set as a U-shaped frame body, and the lower part of the outer surface of the fixing frame 43 is set as a pointed structure.

[0057] As can be seen from the above, the U-shaped frame body provides a stable support structure, while the pointed structure at the lower part of the outer surface helps the fixing frame 43 to be more easily inserted into the soil or fixed in a specific position, improving the fixing effect.

[0058] Application example:

[0059] This design is applied to large - area farmland irrigation, especially in those areas where water resources are relatively scarce and efficient utilization of irrigation water is required. At the same time, this design is also applicable to farmland environments with complex terrains, diverse soil conditions, and prone to ineffective evaporation and leakage during the irrigation process. In arid and semi - arid regions where water resources are scarce, irrigation efficiency is crucial. Through the intermittent alternating irrigation mode, this design can significantly reduce ineffective evaporation and leakage and improve the utilization efficiency of irrigation water. In sloping farmland, due to topographical reasons, runoff and leakage are prone to occur during irrigation. This design firmly fixes the field watering pipe 8 to the field soil through the fixing mechanism 4, reducing the loss of irrigation water. At the same time, the intermittent alternating irrigation mode also helps to reduce runoff. In sandy - soil farmland, sandy soil has poor water - retaining capacity and is prone to deep - layer leakage during irrigation. This design ensures the uniform distribution and effective utilization of irrigation water through intermittent alternating irrigation and the cleaning mechanism 3 automatically cleaning the filter screen 32. This design sets up an irrigation mechanism 2, which is responsible for introducing water sources into the field watering pipe 8 and alternately opening and closing through multiple alternating water - supply mechanisms 23 at preset time intervals to form a furrow - irrigation mode. This mode reduces the ineffective evaporation and leakage of irrigation water through intermittent water supply and improves the utilization efficiency of irrigation water. This design sets up a cleaning mechanism 3, which can automatically clean the sundries on the filter screen 32, ensuring the smooth flow and uniform distribution of irrigation water without manual cleaning, reducing the maintenance cost and labor intensity. This design sets up a fixing mechanism 4 for firmly fixing the field watering pipe 8 to the field soil, which can prevent the field watering pipe 8 from being displaced or damaged due to water flow impact or soil movement during irrigation, improving the stability and reliability of the irrigation system.

[0060] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An irrigation device for intermittent alternating irrigation, characterized in that: include: An irrigation water tank (1) and a fixing mechanism (4); An irrigation mechanism (2) is installed at the lower part of the outer wall of the irrigation water tank (1), a cleaning mechanism (3) is installed through the middle of the top of the irrigation water tank (1), and a plurality of fixing mechanisms (4) are provided; The irrigation mechanism (2) comprises a water pump (21), a shunt pipe (22), an alternate water supply mechanism (23), a connecting plate (24), a driver (25), a first bevel gear (26), a second bevel gear (27) and a spline shaft (28). The water pump (21) is installed through the lower part of the outer wall of the irrigation water tank (1). The shunt pipe (22) is installed in the middle part of the outer wall of the water pump (21). A plurality of alternate water supply mechanisms (23) are provided, and the plurality of alternate water supply mechanisms (23) are all installed on the outer wall of the shunt pipe (22). The connecting plate (24) is installed between the opposite surfaces of the two middle alternate water supply mechanisms (23). The driver (25) is installed at the bottom end of the connecting plate (24). The first bevel gear (26) is installed at the top end of the connecting plate (24) through a bearing. The spline shaft (28) is installed through the upper part of the outer surfaces of the plurality of alternate water supply mechanisms (23). The second bevel gear (27) is installed in the middle part of the outer surface of the spline shaft (28).

2. The irrigation device for intermittent alternating irrigation according to claim 1, characterized in that: Support rods (5) are installed at the four corners of the top of the irrigation water tank (1), and the tops of the four support rods (5) are installed on the outer surface of the cleaning mechanism (3). The outer walls on both sides of the cleaning mechanism (3) are installed with protective covers (6). A controller (7) is installed on one side of the top of the irrigation water tank (1). A plurality of field watering pipes (8) are installed on the outer wall of the irrigation mechanism (2), and a plurality of fixing mechanisms (4) are installed on the outer surfaces of the plurality of field watering pipes (8). A plurality of irrigation nozzles (9) are installed on the tops of the plurality of field watering pipes (8).

3. The irrigation device for intermittent alternating irrigation according to claim 2, characterized in that: The field watering pipe (8) is configured as a long hose, and the plurality of fixing mechanisms (4) and the plurality of irrigation nozzles (9) are distributed on the field watering pipe (8) in a staggered manner.

4. The irrigation device for intermittent alternating irrigation according to claim 1, characterized in that: The alternating water supply mechanism (23) comprises a protection box (231), a ball valve body (232), an adjusting rod (233), a worm gear (234), a positioning head (235) and a worm (236); the ball valve body (232) is inserted and installed between the inner walls on both sides of the protection box (231), and the two ends of the ball valve body (232) are respectively installed on the outer wall of the shunt pipe (22) and one end of the field watering pipe (8); the adjusting rod (233) is arranged at the middle of the top end of the ball valve body (232), the worm gear (234) is installed at the middle of the outer surface of the adjusting rod (233), the positioning head (235) is installed at the top end of the adjusting rod (233), and the worm (236) is installed between the inner walls on both sides of the protection box (231) through a bearing.

5. The irrigation device for intermittent alternating irrigation according to claim 4, characterized in that: The worm wheel (234) is meshed with the worm (236), a mounting hole matching the spline shaft (28) is provided inside the worm (236), the first bevel gear (26) is meshed with the second bevel gear (27), and the driver (25) and the water pump (21) are both electrically connected to the controller (7).

6. The irrigation device for intermittent alternating irrigation according to claim 1, characterized in that: The cleaning mechanism (3) comprises a guide bucket (31), a filter screen (32), a driving shaft (33) and a driving paddle (34); the guide bucket (31) is installed in the middle of the top end of the irrigation water tank (1); the filter screen (32) is installed at the top end of the guide bucket (31); the driving shaft (33) is installed between the inner walls on both sides of the irrigation water tank (1) through a bearing; and the driving paddle (34) is installed in the middle of the outer surface of the driving shaft (33).

7. The irrigation device for intermittent alternating irrigation according to claim 6, characterized in that: Two driven shafts (35) are installed between the inner walls of both sides of the guide bucket (31) through bearings, and pulleys (36) are installed at one end of the two driven shafts (35) and at both ends of the driving shaft (33). A synchronous belt (37) is installed between the outer surfaces of two adjacent pulleys (36), and a plurality of cleaning blocks (38) are installed on the outer surfaces of the two driven shafts (35).

8. The irrigation device for intermittent alternating irrigation according to claim 7, characterized in that: The plurality of cleaning blocks (38) are distributed in a spiral shape on the outer surface of the driven shaft (35), the driving paddle (34) is located directly below the water outlet of the guide bucket (31), and the top end surface of the guide bucket (31) is arranged as an inclined surface.

9. The irrigation device for intermittent alternating irrigation according to claim 1, characterized in that: The fixing mechanism (4) comprises a fixing plate (41), a limiting ring (42), a fixing frame (43) and an adjusting handle (44); the limiting ring (42) is inserted and installed in the middle of the top end of the fixing plate (41), and the limiting ring (42) is slidably installed on the outer surface of the field watering pipe (8); the fixing frame (43) is inserted and installed between the two sides of the top end of the fixing plate (41), and the adjusting handle (44) is installed at the top end of the fixing frame (43).

10. The irrigation device for intermittent alternating irrigation according to claim 9, characterized in that: The fixing frame (43) is configured as a U-shaped frame body, and the lower portion of the outer surface of the fixing frame (43) is configured as a pointed structure.

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