Flow dividing device for irrigation and water conservancy irrigation

Abstract

The utility model belongs to the technical field of irrigation and water conservancy, and discloses an irrigation and water conservancy flow dividing device which comprises a cylinder, a water inlet, a left water outlet, a rear water outlet and a right water outlet are formed in the cylinder body in the circumferential direction at intervals, a supporting frame is arranged on the cylinder, a rotating shaft concentric with the cylinder is rotationally arranged on the supporting frame, and a driving motor is further arranged on the supporting frame. An output shaft of the driving motor is connected with the upper end of the rotating shaft, and the lower end of the rotating shaft is arranged in the cylinder and provided with a flow dividing assembly for dividing water in the water inlet into the left water outlet, the rear water outlet and the right water outlet. The driving motor drives the rotating shaft to rotate to drive the flow dividing assembly to rotate, so that water in the water inlet is divided into the left water outlet or the right water outlet to irrigate the field on the left side or the field on the right side, or water flow at the water inlet is directly introduced into the rear water outlet to be conveyed backwards, and the irrigation efficiency is improved. And a control device does not need to be arranged at the opening of each canal, so that the irrigation diversion cost is reduced while the operation is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of farmland water conservancy, in particular to a farmland water conservancy irrigation diversion device. Background Art

[0002] Farmland water conservancy is a water conservancy project measure aimed at increasing agricultural production. That is, through the construction and use of various water conservancy project measures, the moisture conditions of farmland and regional water conditions are regulated and improved, the ability to resist natural disasters is improved, and the virtuous cycle of the ecological environment is promoted, which is conducive to the production of crops.

[0003] A Chinese utility model patent with publication number CN221030015U discloses a farmland water conservancy irrigation diversion device, which includes a threaded shaft, a base plate, and a drive motor. The bottom of the threaded shaft is fixedly connected to a water retaining assembly, and a rotating drum is rotatably arranged on the base plate. The rotating drum is spirally matched with the threaded rod through a threaded hole, and the rotating drum is driven to rotate by the drive motor, so that the threaded rod and the water retaining assembly move up and down to control whether the water in the canal flows.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: at the diversion point of the canal, usually four canals are connected in a cross shape, the canal on the front side is used to draw water, the canal on the rear side is used to transport water to the rear side, the canal on the left side is used to introduce water into the fields on the left side, and the canal on the right side is used to introduce water into the fields on the right side. It is necessary to divert the water flow at the diversion point differently, and it is necessary to set up the above-mentioned device at the mouth of each canal, which is inconvenient and also increases the cost of irrigation diversion. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a farmland water conservancy irrigation diversion device.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a farmland water conservancy irrigation diversion device, including a cylinder, on which a water inlet, a left water outlet, a rear water outlet, and a right water outlet are arranged at intervals in the circumferential direction, a support frame is arranged on the cylinder, a rotating shaft arranged concentrically with the cylinder is rotatably arranged on the support frame, a driving motor is also arranged on the support frame, the output shaft of the driving motor is connected to the upper end of the rotating shaft, the lower end of the rotating shaft is placed in the cylinder and is provided with a diversion component that diverts water in the water inlet to the left water outlet, the rear water outlet, and the right water outlet.

[0007] By adopting the above technical scheme, a cylinder, a rotating shaft, a driving motor, and a diversion component are arranged, and a water inlet, a left water outlet, a rear water outlet, and a right water outlet are arranged on the cylinder, which are respectively connected to an inlet channel, a left water outlet channel, a rear water outlet channel, and a right water outlet channel, so that water in the inlet channel can flow to the left water outlet channel, the rear water outlet channel, and the right water outlet channel; the driving motor drives the rotating shaft to rotate to drive the diversion component to rotate, thereby diverting the water in the water inlet to the left water outlet or the right water outlet to irrigate the fields on the left or the right side, or directly introducing the water flow at the water inlet into the rear water outlet and transporting it to the rear. There is no need to set a control device at each water channel outlet, which is more convenient and also reduces the cost of irrigation diversion.

[0008] Furthermore, the diverter assembly includes two diverter plates symmetrically arranged on the rotating shaft and arranged vertically, the bottom of the diverter plate is in sliding contact with the bottom of the cylinder, and the diverter plate is in sliding contact with the cylinder body on the side away from the rotating shaft. Two support rods are also symmetrically arranged on the rotating shaft, and the length direction of the support rods is perpendicular to the surface of the diverter plate. The two support rods are respectively provided with a first baffle and a second baffle at one end away from the rotating shaft.

[0009] By adopting the above technical solution, a diverter plate, a support rod, a first baffle plate, and a second baffle plate are arranged. When the second baffle plate rotates to the water inlet, the water at the water inlet is blocked, so that the water flow cannot flow into the cylinder. At this time, the rotating shaft rotates 45 degrees counterclockwise, so that the second baffle plate is removed, and the water flows into the cylinder. Under the action of the diverter plate, the water flow is introduced into the right water outlet to irrigate the field on the right side. The rotating shaft rotates 90 degrees counterclockwise again. At this time, the water flow is introduced into the left water outlet to irrigate the field on the left side. After the irrigation is completed, it rotates 45 degrees clockwise, so that the first baffle plate and the second baffle plate block the right water outlet and the left water outlet respectively, so that the water flow at the water inlet flows into the rear water outlet, and the water flow is transported backward.

[0010] Furthermore, the first baffle plate and the second baffle plate are both arc-shaped plates, the arc centers of the first baffle plate and the second baffle plate are arranged concentrically with the center of the cylinder, and the outer plate surfaces of the first baffle plate and the second baffle plate are in sliding contact with the inner wall of the cylinder.

[0011] By adopting the above technical solution, the outer plate surfaces of the first baffle and the second baffle are arranged to be in sliding contact with the inner wall of the cylinder, so that when the first baffle and the second baffle are located at the water inlet, the left water outlet, the rear water outlet, and the right water outlet, the water inlet, the left water outlet, the rear water outlet, and the right water outlet can be completely blocked.

[0012] Furthermore, a slow-flow assembly is provided on the first baffle plate, and the slow-flow assembly includes an arc frame arranged on the top of the first baffle plate, an arc guide rod is arranged in the arc frame, the arc center of the arc guide rod is concentric with the arc center of the first baffle plate, a slider is arranged in the arc frame, and the slider is slidably arranged on the arc guide rod through a guide hole, a sliding plate is arranged on the inner side of the first baffle plate, the sliding plate is an arc plate, the outer plate surface of the sliding plate is in sliding contact with the inner plate surface of the first baffle plate, the upper end of the sliding plate is connected to the slider, and the arc guide rod is located between the slider and the inner plate surface of the first baffle plate. An arc-shaped compression spring is sleeved on the rod body between the inner walls of the arc-shaped frame, one end of the arc-shaped compression spring is abutted against the slider, and the other end is abutted against the inner wall of the arc-shaped frame, and the plate edges on both sides of the vertical plate edges of the sliding plate adjacent to the slider are horizontally provided with sliding grooves toward the support rod, and a blocking rod is horizontally provided on the inner wall of the cylinder at the upper part of the water inlet, and the blocking rod is arc-shaped as a whole, and the arc radius of the side surface of the blocking rod away from the rotating axis is consistent with the arc radius of the arc surface of the sliding plate away from the rotating axis, the length of the blocking rod is less than half of the width of the sliding plate, and a plurality of through holes are opened on the first baffle plate.

[0013] By adopting the above technical scheme, an arc frame, an arc guide rod, a slider, a sliding plate, an arc compression spring, a slide groove blocking rod, and a through hole are provided. When the second baffle is at the water inlet, the driving motor drives the rotating shaft to rotate 180 degrees counterclockwise. During the rotation, the blocking rod contacts the sliding plate, causing the sliding plate to slide. The sliding direction of the sliding plate is restricted by the arc guide rod and the slider. At this time, the sliding plate is staggered with the first baffle, so that water at the water inlet flows into the cylinder through the through hole and then flows out from the left water outlet and the right water outlet, so that the fields on the left and the fields on the right are continuously irrigated with small water flows. The arc compression spring will be compressed during the sliding of the slider. When the first baffle leaves the water inlet, the blocking rod is separated from the sliding plate, the arc compression spring loses its restriction, releases the elastic force, and pushes the slider to slide, so that the sliding plate is reset.

[0014] Furthermore, an arc rod is horizontally arranged on the inner side of the first baffle, the arc center of the arc rod is concentric with the arc center of the first baffle, and the side of the arc rod away from the rotation axis is in sliding contact with the inner plate surface of the first baffle.

[0015] By adopting the above technical solution, the side of the arc rod away from the rotating shaft is set to be in sliding contact with the inner plate surface of the first baffle, so that the arc rod supports the sliding plate, further improving the sliding stability of the sliding plate.

[0016] Furthermore, the distances from the top of the diverter plate and the second baffle plate to the bottom of the cylinder are smaller than the distance from the blocking rod to the bottom of the cylinder.

[0017] By adopting the above technical solution, the distance from the top of the diverter plate and the second baffle plate to the bottom of the cylinder is set to be smaller than the distance from the blocking rod to the bottom of the cylinder, thereby avoiding interference between the diverter plate, the second baffle plate and the blocking rod during rotation.

[0018] Furthermore, a top plate is provided on the top of the arc-shaped frame.

[0019] By adopting the above technical solution, a top plate is arranged on the top of the arc frame to prevent debris from entering the arc frame from the top of the arc frame, thereby protecting the arc compression spring, the arc guide rod and the slide block.

[0020] In summary, the utility model has the following beneficial effects: in the present application, a cylinder, a rotating shaft, a driving motor, and a diversion component are provided; a water inlet, a left water outlet, a rear water outlet, and a right water outlet are provided on the cylinder, which are respectively connected to an inlet channel, a left water outlet channel, a rear water outlet channel, and a right water outlet channel, so that water in the inlet channel can flow to the left water outlet channel, the rear water outlet channel, and the right water outlet channel; the driving motor drives the rotating shaft to rotate to drive the diversion component to rotate, thereby diverting the water in the water inlet to the left water outlet or the right water outlet to irrigate the fields on the left or the right side, or directly introducing the water flow at the water inlet into the rear water outlet and transporting it to the rear. There is no need to set a control device at each water channel outlet, which is more convenient and also reduces the cost of irrigation diversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the utility model when the water inlet is closed;

[0022] Figure 2 This is a schematic diagram of the overall structure of the embodiment of the utility model when the water outlet is opened;

[0023] Figure 3 This is a schematic diagram of the overall structure of the embodiment of the utility model when the right water outlet is opened;

[0024] Figure 4 This is a schematic diagram of the overall structure of the embodiment of the utility model when the left water outlet and the right water outlet are opened at the same time;

[0025] Figure 5 It is a structural schematic diagram of the cylinder and the diversion assembly when the left water outlet and the right water outlet of the embodiment of the utility model are opened at the same time;

[0026] Figure 6 It is a structural schematic diagram of the flow diversion component part of the embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the first baffle and the slow flow component of the embodiment of the utility model;

[0028] Figure 8It is a structural schematic diagram of the first baffle, the sliding plate, the arc frame and the arc rod part of the embodiment of the utility model.

[0029] In the figure: 10, cylinder; 11, water inlet; 12, left water outlet; 13, rear water outlet; 14, right water outlet; 20, support frame; 21, rotating shaft; 22, driving motor; 30, diverter assembly; 31, diverter plate; 32, support rod; 33, first baffle; 331, arc rod; 34, second baffle; 40, slow flow assembly; 41, arc frame; 42, top plate; 43, arc guide rod; 44, slider; 45, sliding plate; 46, arc compression spring; 47, slide groove; 48, blocking rod; 49, through hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0031] like Figure 1-8 As shown, the embodiment of the present application discloses a farmland water conservancy irrigation diversion device, including a cylinder 10, a support frame 20, and a diversion assembly 30. The cylinder 10 is provided with a water inlet 11, a left water outlet 12, a rear water outlet 13, and a right water outlet 14 at intervals in the circumferential direction, and is connected to an inlet channel, a left water outlet channel, a rear water outlet channel, and a right water outlet channel, respectively, so that the water in the inlet channel can flow to the left water outlet channel, the rear water outlet channel, and the right water outlet channel. The support frame 20 is arranged on the cylinder 10, and a rotating shaft 21 arranged concentrically with the cylinder 10 is rotatably arranged on the support frame 20. A driving motor 22 is also arranged on the support frame 20, and the output shaft of the driving motor 22 is connected to the upper end of the rotating shaft 21. The lower end of the rotating shaft 21 is placed in the cylinder 10 and provided with a diversion assembly 30. The diversion assembly 30 is used to divert the water in the water inlet 11 to the left water outlet 12, the rear water outlet 13, and the right water outlet 14.

[0032] Specifically, the diverter assembly 30 includes two diverter plates 31 symmetrically arranged on the rotating shaft 21 and arranged vertically. The bottom of the diverter plate 31 is in sliding contact with the bottom of the cylinder 10, and the side of the diverter plate 31 away from the rotating shaft 21 is in sliding contact with the cylinder 10. The flow direction of the water flow is adjusted by changing the angle of the diverter plate 31. Two support rods 32 are also symmetrically arranged on the rotating shaft 21. The length direction of the support rods 32 is perpendicular to the plate surface of the diverter plate 31. The ends of the two support rods 32 away from the rotating shaft 21 are respectively provided with a first baffle 33 and a second baffle 34. When specifically arranged, two more support rods 32 are symmetrically arranged on the rotating shaft 21, so that the first baffle 33 and the second baffle 34 are connected to the rotating shaft 21 through the two support rods 32, so that the connection is more stable. The widths of the first baffle 33 and the second baffle 34 are greater than the widths of the water inlet 11, the left water outlet 12, the rear water outlet 13, and the right water outlet 14, ensuring that the first baffle 33 and the second baffle 34 can block the water inlet 11, the left water outlet 12, the rear water outlet 13, and the right water outlet 14. The first baffle 33 and the second baffle 34 are both arc-shaped plates, and the arc centers of the first baffle 33 and the second baffle 34 are arranged concentrically with the center of the cylinder 10. The outer plate surfaces of the first baffle 33 and the second baffle 34 are in sliding contact with the inner wall of the cylinder 10, ensuring the smooth rotation of the first baffle 33 and the second baffle 34. The first baffle 33 and the second baffle 34 block the water inlet 11, the left water outlet 12, the rear water outlet 13, and the right water outlet 14 according to different situations, thereby controlling the flow direction of the water flow.

[0033] When the second baffle 34 rotates to the water inlet 11, the water at the water inlet 11 is blocked, so that the water flow cannot flow into the cylinder 10. At this time, the rotating shaft 21 rotates 45 degrees counterclockwise, so that the second baffle 34 is removed, and the water flows into the cylinder 10. Under the action of the diverter plate 31, the water flow is introduced into the right water outlet 14 to irrigate the field on the right side. The rotating shaft 21 rotates 90 degrees counterclockwise again. At this time, the water flow is introduced into the left water outlet 12 to irrigate the field on the left side. After the irrigation is completed, it rotates 45 degrees clockwise, so that the first baffle 33 and the second baffle 34 block the right water outlet 14 and the left water outlet 12 respectively, so that the water flow from the water inlet 11 flows into the rear water outlet 13, and the water flow is transported backward. There is no need to set a control device at each canal outlet, which is more convenient and also reduces the cost of irrigation diversion.

[0034] During the setting, a slow flow assembly 40 is arranged on the first baffle 33. The slow flow assembly 40 includes an arc frame 41 arranged on the top of the first baffle 33. An arc guide rod 43 is arranged in the arc frame 41. The arc center of the arc guide rod 43 is concentric with the arc center of the first baffle 33. A slider 44 is arranged in the arc frame 41. The slider 44 is slidably arranged on the arc guide rod 43 through a guide hole, so that the slider 44 can slide on the arc guide rod 43. A sliding plate 45 is arranged on the inner side of the first baffle 33. The sliding plate 45 is an arc plate. The outer plate surface of the sliding plate 45 is in sliding contact with the inner plate surface of the first baffle 33. The upper end of the sliding plate 45 is connected to the slider 44, so that the sliding plate and the slider 44 can slide synchronously. The plate edges of the two vertical sides of the sliding plate 45 adjacent to the slider 44 are provided with a sliding groove 47 horizontally toward the support rod 32, which ensures the stable sliding of the sliding plate 45. An arc rod 331 is also horizontally arranged inside the first baffle 33, and the arc center of the arc rod 331 is concentric with the arc center of the first baffle 33. The side of the arc rod 331 away from the rotating shaft 21 is in sliding contact with the inner plate surface of the first baffle 33, and the arc rod 331 supports the sliding plate 45, further improving the sliding stability of the sliding plate 45. A blocking rod 48 is horizontally arranged on the inner wall of the cylinder 10 at the upper right side of the water inlet 11. The blocking rod 48 is arc-shaped as a whole, and the arc radius of the side of the blocking rod 48 away from the rotating shaft 21 is consistent with the arc radius of the arc surface of the sliding plate 45 away from the rotating shaft 21, so that the blocking rod 48 can contact the sliding plate 45. The length of the blocking rod 48 is less than half the width of the sliding plate 45. A plurality of through holes 49 are provided on the first baffle plate 33. When the second baffle plate 34 is at the water inlet 11, the driving motor 22 drives the rotating shaft 21 to rotate 180 degrees counterclockwise. During the rotation, the blocking rod 48 contacts the sliding plate 45, causing the sliding plate 45 to slide. At this time, the sliding plate 45 is staggered from the first baffle plate 33, so that the water at the water inlet 11 flows into the cylinder 10 through the through holes 49 and then flows out from the left water outlet 12 and the right water outlet 14, so that the left field and the right field are continuously irrigated with small water flows.

[0035] In the specific configuration, the arc-shaped guide rod 43 is located between the slider 44 and the inner wall of the arc frame 41, and an arc-shaped compression spring 46 is sleeved on the rod body. One end of the arc-shaped compression spring 46 abuts against the slider 44, and the other end abuts against the inner wall of the arc frame 41. The slider 44 will compress the arc-shaped compression spring 46 during sliding. When the first baffle 33 leaves the water inlet 11, the blocking rod 48 separates from the sliding plate 45, and the arc-shaped compression spring 46 loses its restriction, releasing its elastic force, pushing the slider 44 to slide, so that the sliding plate 45 is reset. The distance from the top of the diverter plate 31 and the second baffle plate 34 to the bottom of the cylinder 10 is smaller than the distance from the blocking rod 48 to the bottom of the cylinder 10, so as to avoid interference between the diverter plate 31, the second baffle plate 34 and the blocking rod 48 during rotation. A top plate 42 is provided on the top of the arc frame 41 , and the bottom edge of the top plate 42 coincides with the outer edge of the top of the arc frame 41 , preventing debris from entering the arc frame 41 from the top of the arc frame 41 , thereby protecting the arc compression spring 46 , the arc guide rod 43 , and the slider 44 .

[0036] The use principle of a farmland water conservancy irrigation diversion device in this embodiment is as follows: when the water inlet 11 needs to be closed, the driving motor 22 drives the rotating shaft 21 to rotate, so that the second baffle 34 rotates to the water inlet 11, so that the water flow cannot flow into the cylinder 10. When it is necessary to irrigate the right field, on the basis of the previous step, the rotating shaft 21 rotates 45 degrees counterclockwise, so that the second baffle 34 is removed, and the water flows into the cylinder 10. Under the action of the diversion plate 31, the water flow is introduced into the right water outlet 14 to irrigate the right field. When the rear water outlet 13 needs to be opened, on the basis of the previous step, the rotating shaft 21 rotates 45 degrees counterclockwise again, so that the first baffle 33 and the second baffle 34 block the right water outlet 14 and the left water outlet 12 respectively, so that the water flow of the water inlet 11 flows into the rear water outlet 13, and the water flow is transported backward. When the left field needs to be irrigated, based on the previous step, the rotating shaft 21 is rotated counterclockwise by 45 degrees again, and the water flow is introduced into the left water outlet 12 to irrigate the left field. At this time, if you still want to irrigate the left field and the right field with a small flow of water, based on the previous step, the rotating shaft 21 is rotated counterclockwise by 45 degrees again, and during the rotation, the blocking rod 48 contacts the sliding plate 45, causing the sliding plate 45 to slide. At this time, the sliding plate 45 is staggered with the first baffle 33, so that the water at the water inlet 11 flows into the cylinder 10 through the through hole 49 and then flows out from the left water outlet 12 and the right water outlet 14, and the left field and the right field are continuously irrigated with a small flow of water. The control of the water flow direction is simple and convenient, and there is no need to set a control device at each canal outlet, which reduces the cost of irrigation diversion.

[0037] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A farmland water conservancy irrigation diversion device, characterized by: The invention comprises a cylinder (10), wherein a water inlet (11), a left water outlet (12), a rear water outlet (13), and a right water outlet (14) are arranged at intervals in the circumferential direction on the cylinder (10); a support frame (20) is arranged on the cylinder (10); a rotating shaft (21) arranged concentrically with the cylinder (10) is rotatably arranged on the support frame (20); a driving motor (22) is also arranged on the support frame (20); an output shaft of the driving motor (22) is connected to the upper end of the rotating shaft (21); the lower end of the rotating shaft (21) is placed in the cylinder (10) and is provided with a diversion component (30) for diverting water in the water inlet (11) to the left water outlet (12), the rear water outlet (13), and the right water outlet (14).

2. The farmland water conservancy irrigation diversion device according to claim 1 is characterized in that: The flow dividing assembly (30) comprises two flow dividing plates (31) symmetrically arranged on the rotating shaft (21) and arranged vertically, the bottom of the flow dividing plates (31) being in sliding contact with the bottom of the cylinder (10), and the side of the flow dividing plates (31) away from the rotating shaft (21) being in sliding contact with the body of the cylinder (10), and two support rods (32) being symmetrically arranged on the rotating shaft (21), the length direction of the support rods (32) being perpendicular to the plate surface of the flow dividing plates (31), and the ends of the two support rods (32) away from the rotating shaft (21) being respectively provided with a first baffle plate (33) and a second baffle plate (34).

3. The farmland water conservancy irrigation diversion device according to claim 2 is characterized in that: The first baffle plate (33) and the second baffle plate (34) are both arc-shaped plates, the arc centers of the first baffle plate (33) and the second baffle plate (34) are arranged concentrically with the center of the cylinder (10), and the outer plate surfaces of the first baffle plate (33) and the second baffle plate (34) are in sliding contact with the inner wall of the cylinder (10).

4. The farmland water conservancy irrigation diversion device according to claim 2 is characterized in that: The first baffle (33) is provided with a slow flow assembly (40), the slow flow assembly (40) comprising an arc frame (41) arranged on the top of the first baffle (33), an arc guide rod (43) arranged in the arc frame (41), the arc center of the arc guide rod (43) is coaxial with the arc center of the first baffle (33), a slider (44) is arranged in the arc frame (41), the slider (44) is slidably arranged on the arc guide rod (43) through a guide hole, a sliding plate (45) is arranged on the inner side of the first baffle (33), the sliding plate (45) is an arc plate, the outer plate surface of the sliding plate (45) is in sliding contact with the inner plate surface of the first baffle (33), the upper end of the sliding plate (45) is connected to the slider (44), and the arc guide rod (43) is located between the slider (44) and the inner plate surface of the first baffle (33). An arc compression spring (46) is sleeved on the rod body between the inner walls of the arc frame (41), one end of the arc compression spring (46) is in contact with the slider (44), and the other end is in contact with the inner wall of the arc frame (41). A slide groove (47) is horizontally provided on the plate edges of the two vertical sides of the sliding plate (45) adjacent to the slider (44) toward the support rod (32). A blocking rod (48) is horizontally provided on the inner wall of the cylinder (10) at the upper part of the water inlet (11). The blocking rod (48) is arc-shaped as a whole. The arc radius of the side surface of the blocking rod (48) away from the rotating shaft (21) is consistent with the arc radius of the arc surface of the sliding plate (45) away from the rotating shaft (21). The length of the blocking rod (48) is less than half the width of the sliding plate (45). A plurality of through holes (49) are provided on the first baffle plate (33).

5. The farmland water conservancy irrigation diversion device according to claim 4 is characterized in that: An arc rod (331) is also horizontally arranged on the inner side of the first baffle (33), the arc center of the arc rod (331) is concentric with the arc center of the first baffle (33), and the side of the arc rod (331) away from the rotating shaft (21) is in sliding contact with the inner plate surface of the first baffle (33).

6. The farmland water conservancy irrigation diversion device according to claim 4 is characterized in that: The distances from the top of the diverter plate (31) and the second baffle plate (34) to the bottom of the cylinder (10) are both smaller than the distance from the blocking rod (48) to the bottom of the cylinder (10).

7. The farmland water conservancy irrigation diversion device according to claim 4 is characterized in that: A top plate (42) is provided on the top of the arc-shaped frame (41).

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