Alternating irrigation device

Abstract

The present application relates to an alternate irrigation device, and relates to the field of alternate irrigation technology, including a mobile water source distribution mechanism, at least two irrigation main pipes laid along the edge of the irrigation area, a plurality of irrigation branch pipe assemblies distributed along the direction of the irrigation main pipe, and a control mechanism for controlling the spray angle and spray distance of the irrigation branch pipe assembly, the irrigation main pipe includes a high water level main pipe and a low water level main pipe, the irrigation branch pipe assembly includes a high water level branch pipe group connected to the high water level main pipe and a low water level branch pipe group connected to the low water level main pipe, the mobile water source distribution mechanism connects the high water level main pipe and / or the low water level main pipe through translation, and the control mechanism controls the spray angle and spray distance of the high water level branch pipe group and the low water level branch pipe group through translation. The device of the present application can alternately irrigate the garden greening area from far to near, has good irrigation effect, saves water resources, facilitates the laying of irrigation pipelines, reduces construction costs, and saves labor.

Description

Technical Field

[0001] The present application relates to the field of alternating irrigation technology, and in particular to an alternating irrigation device. Background Art

[0002] Traditional irrigation methods seek to fully and evenly moisten the root layer, resulting in a large amount of ineffective transpiration and evaporation, and low water utilization efficiency. The alternate row irrigation method for fruit trees means that the first irrigation is carried out in alternate rows, and the second irrigation is carried out in alternate rows on the basis of the first irrigation, and the third irrigation area is the same as the first irrigation area.

[0003] Alternating irrigation between rows keeps part of the root system in a state of water stress, while the other part grows in a moist area. As a result, the fruit trees are not short of water, and the appropriate concentration of the root messenger ABA induces partial closure of the stomata. This can greatly reduce the extravagant transpiration loss of the fruit trees without sacrificing the accumulation of photosynthetic products, and also reduce the ineffective transpiration and evaporation when the whole garden is fully irrigated. In addition, drought re-watering will stimulate the root system to compensate for growth, and a large number of new roots will regenerate. The new roots can synthesize a large amount of CTK and transport it to the aboveground part, which is of great significance for promoting flower bud differentiation. Therefore, this irrigation method has important practical significance for improving the water use efficiency of fruit trees, both at the leaf level and at the production level.

[0004] In garden projects, when irrigating flowers, plants and trees, flood irrigation or sprinkler irrigation is often used. Flood irrigation will cause more water to evaporate or flow outside the greening project, wasting more water resources, and workers need to constantly move water pipes, wasting manpower; sprinkler irrigation has a relatively single and fixed running track of the nozzle, which causes over-irrigation in the falling water area and failure to achieve the irrigation effect in the blind falling water area. The above two irrigation methods are not ideal. The alternate irrigation method is difficult to meet the terrain conditions and vegetation conditions in garden greening, and the construction cost will also increase. Summary of the invention

[0005] The purpose of the present application is to provide an alternating irrigation device that can alternately irrigate a garden greening area at a distance and a distance, has a good irrigation effect, saves water resources, facilitates the laying of irrigation pipelines, reduces construction costs, and saves labor.

[0006] The present application provides an alternating irrigation device that adopts the following technical solution:

[0007] An alternating irrigation device comprises a mobile water source distribution mechanism, at least two irrigation main pipes laid along the edge of an irrigation area, a plurality of irrigation branch pipe assemblies distributed along the direction of the irrigation main pipes, and a control mechanism for controlling the spray angle and spray distance of the irrigation branch pipe assemblies. The irrigation main pipe comprises a high water level main pipe and a low water level main pipe. The irrigation branch pipe assembly comprises a high water level branch pipe group connected to the high water level main pipe and a low water level branch pipe group connected to the low water level main pipe. The mobile water source distribution mechanism is connected to the high water level main pipe and / or the low water level main pipe by translation. The control mechanism controls the spray angle and spray distance of the high water level branch pipe group and the low water level branch pipe group by translation.

[0008] As a preferred technical solution of the present application, the mobile water source distribution mechanism includes a fixed seat, a movable seat slidably connected to the fixed seat, a water distributor connected to the movable seat, and a driving assembly for driving the movable seat to translate. The fixed seat is provided with a water distribution channel respectively connected to the high water level main pipe and the low water level main pipe, the water distributor is provided with a water distribution pipe, and the end of the water distribution pipe is connected to a water source.

[0009] As a preferred technical solution of the present application, the fixed seat is in contact with the movable seat through the lower surface, and legs for supporting the fixed seat are arranged at the top corners of the lower surface of the fixed seat, and mounting plates for installing the driving assembly are arranged at both ends of the fixed seat. The driving assembly includes a driving motor connected to the outer side of the mounting plate, a driving screw connected to the output shaft of the driving motor, and a guide rod arranged parallel to the driving screw, the driving screw is rotatably connected between the two mounting plates, the guide rod is fixedly connected between the two mounting plates, and the movable seat is threadedly connected to the driving screw.

[0010] As a preferred technical solution of the present application, a protective plate is provided extending outwardly around the fixing seat.

[0011] As a preferred technical solution of the present application, a circular docking groove is provided on the side of the water divider facing the fixed seat, and a sealing member is arranged in the docking groove. The sealing member includes a pressure spring fixed to the bottom of the docking groove and a sealing ring connected to the end of the pressure spring. The outer surface of the sealing ring abuts against the side wall of the docking groove, and the end can be inserted into the water diversion channel.

[0012] As a preferred technical solution of the present application, the high water level branch pipe group includes a base fixed on the ground, a high water level branch pipe connected to the high water level main pipe, a nozzle connected to the top of the high water level branch pipe, and a pipe joint for connecting the high water level main pipe and the high water level branch pipe. A fixing clamp for fixing the pipe joint is provided on the base, and the structure of the low water level branch pipe group is the same as that of the high water level branch pipe group.

[0013] As a preferred technical solution of the present application, the low water level branch pipe group includes low water level branches, multiple low water level branches and multiple high water level branches are alternately arranged, and the height of the low water level branch is lower than the height of the high water level branch.

[0014] As a preferred technical solution of the present application, the length direction of the base is perpendicular to the direction of the high water level main pipe, and the control mechanism is slidably connected to the base, close to or away from the high water level branch pipe.

[0015] As a preferred technical solution of the present application, the control mechanism includes a slide seat slidably connected to the base, a vertical pole fixedly connected to the slide seat, and a guide plate rotatably connected to the top of the vertical pole. An obtuse angle is formed between the guide plate and the vertical pole, and a fan-shaped or trapezoidal water guide groove is provided on the lower surface of the guide plate, which diffuses away from one end of the vertical pole.

[0016] As a preferred technical solution of the present application, guide plates are provided on both sides of the base, C-shaped clamping plates clamped on the guide plates are provided on both sides of the slide, and the slide is threadedly connected with a locking bolt whose end abuts against the base.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. The device of the present application is composed of a high-water-level pipe group and a low-water-level pipe group. The connection status of the high water level and the low water level is controlled by a mobile water source distribution mechanism to achieve three states: high water level connection alone, low water level connection alone and simultaneous connection. This realizes the state of alternating near and far irrigation of landscaping projects, which not only saves water resources, but also avoids damage to landscaping by pipes, thereby reducing costs.

[0019] 2. The mobile water source distribution mechanism connects the high water level pipeline and the low water level pipeline through a fixed seat, connects to the water source through a movable seat, and distributes the water source by moving the movable seat. The movable seat performs timed conversion between the three states under the control of the control system, thereby realizing timed control of water source distribution and improving the intelligence and convenience of the device.

[0020] 3. In this application, the fixed seat is arranged above the movable seat, and the protective plate around the fixed seat can protect the motor and other structures under the movable seat, so that the driving motor is protected from rain, and the equipment is effectively protected.

[0021] 4. In the present application, a control mechanism is provided to control the spray angle and spray height of the branch nozzle, and an inclined guide plate is used to contact the water column sprayed from the nozzle. The spray distance of the water column to the greening area is controlled by the contact height of the water column. The spray angle of the water column is controlled by the inclination angle of the guide plate, which can avoid obstacles blocking the water flow and enable the irrigation water to reach the irrigation area directly, thereby improving the breadth and practicality of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the external structure of the mobile water source distribution mechanism in an embodiment of the present application;

[0024] Figure 3 is a schematic cross-sectional structure diagram of a mobile water source distribution mechanism in an embodiment of the present application;

[0025] Figure 4 is a bottom view of the mobile water source distribution mechanism in the embodiment of the present application;

[0026] Figure 5 It is a structural schematic diagram of a high water level branch pipe group in an embodiment of the present application;

[0027] Figure 6 is a distribution state diagram of a high water level branch pipe group and a low water level branch pipe group in an embodiment of the present application;

[0028] Figure 7 It is a schematic diagram of the connection structure of the high water level branch pipe group and the control mechanism in the embodiment of the present application;

[0029] Figure 8 It is a schematic diagram of the connection structure between the base and the slide in the embodiment of the present application;

[0030] In the figure, 1. mobile water source distribution mechanism; 11. fixed seat; 111. support leg; 112. mounting plate; 113. protective plate; 12. movable seat; 13. water distributor; 131. docking groove; 14. water distribution channel; 15. water distribution pipe; 16. driving motor; 17. driving screw; 18. guide rod; 19. sealing element; 191. pressure spring; 192. sealing ring; 2. control mechanism; 21. sliding seat; 22. vertical pole; 23. guide plate; 24. water guide groove; 25. C-shaped card plate; 3. high water level main pipe; 4. low water level main pipe; 5. high water level branch pipe group; 51. base; 52. high water level branch pipe; 53. nozzle; 54. pipe joint; 55. fixing card; 56. guide plate; 57. locking bolt; 6. low water level branch pipe group; 61. low water level branch pipe. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] Embodiment: This application proposes an alternating irrigation device, referring to Figure 1-8 The device includes a mobile water source distribution mechanism 1, an irrigation main pipe, an irrigation branch pipe assembly and a control mechanism 2. The mobile water source distribution mechanism 1 is connected to the water source and is used to control the distribution of the water source. The irrigation main pipe is connected to the mobile water source distribution mechanism 1 and is used to receive the water source transported by the mobile water source distribution mechanism 1 and transport the water source to the area that needs irrigation. The irrigation branch pipe assemblies are distributed at intervals on the irrigation main pipe to spray water to the greening area. The control mechanism 2 is connected to the irrigation branch pipe assembly to control the spray angle and distance of the water flow.

[0034] The mobile water source distribution mechanism 1 can be installed at the edge of a green area, which is convenient for installation and reduces the impact on green landscaping. At least two irrigation main pipes are provided, which are laid in the same direction along the edge of the irrigation area. The irrigation area can be divided according to the width of the green area. In this embodiment, two irrigation main pipes are provided, namely a high water level main pipe 3 and a low water level main pipe 4. The high water level main pipe 3 is used to irrigate a farther area, and the low water level main pipe 4 is used to irrigate a closer area. The irrigation branch pipe assembly is also provided with two different heights, which are divided into a high water level branch pipe group 5 and a low water level branch pipe group 6. The high water level branch pipe group 5 is arranged at intervals on the high water level main pipe 3, and the low water level branch pipe group 6 is arranged at intervals on the low water level main pipe 4. In order to achieve a better irrigation effect, the high water level branch pipe group 5 and the low water level branch pipe group 6 are alternately distributed in this embodiment.

[0035] The mobile water source distribution mechanism 1 includes a fixed seat 11, a movable seat 12, a water distributor 13, a water distributor pipe 15 and a driving assembly. In this embodiment, the fixed seat 11 is set as a long strip plate-like structure, the lower surface of the fixed seat 11 is a plane and the four vertex positions are vertically connected with legs 111, the lower end of the legs 111 is fixed to the ground, and the fixed seat 11 is suspended by the legs 111, which is convenient for installing the movable seat 12 under the fixed seat 11. In this embodiment, two mounting plates 112 are vertically connected at both ends of the lower surface of the fixed seat 11, and the mounting plates 112 are used to install the driving assembly and the movable seat 12. The four sides of the fixed seat 11 are extended outwardly with protective plates 113, the thickness of the protective plates 113 is less than the thickness of the fixed seat 11, and the protective plates 113 can be set horizontally or tilted downward to protect the structure below the fixed seat 11 and can be waterproof. Two circular water diversion channels 14 are provided on the fixing seat 11, and the water diversion channels 14 penetrate the upper and lower surfaces of the fixing seat 11 in the up and down directions. The ends of the high water level main pipe 3 and the low water level main pipe 4 are respectively inserted from top to bottom and fixedly connected to the two water diversion channels 14. In this embodiment, the high water level main pipe 3 is connected to the water diversion channel 14 on the left, and the low water level main pipe 4 is connected to the water diversion channel 14 on the right.

[0036] The movable seat 12 is configured as a rectangular plate-like structure having a length less than that of the fixed seat 11 and the same width as that of the fixed seat 11. The upper surface of the movable seat 12 is a plane and slides closely against the lower surface of the fixed seat 11, and the sliding direction is along the axis direction of the fixed seat 1. A rectangular space connecting the upper and lower sides is provided in the middle of the movable seat 12. The water divider 13 is thicker than the thickness of the movable seat 12 and is installed in the rectangular space. In this embodiment, the water divider 13 is configured as a box structure, and the bottom plate is connected to the water source through a water divider pipe 15. The water divider pipe 15 is configured as a hose and a water pump can be installed. Two circular docking grooves 131 are provided on the top plate of the water divider 13 facing the fixed seat 11. The docking grooves 131 are configured as stepped holes that penetrate the top plate of the water divider 13. The end of the docking groove 131 close to the fixed seat 11 has a larger diameter. The water divider 13 is relatively connected to the water divider channel 14 through the docking grooves 131 and is closed in a staggered manner.

[0037] The movable seat 12 is arranged between two mounting plates 112, and the driving assembly is connected to the mounting plates 112. The driving assembly includes a driving motor 16, a driving screw 17 and a guide rod 18. The driving motor 16 is fixed to the outside of one of the mounting plates 112, and the two ends of the driving screw 17 are rotatably connected to the two mounting plates 112. The output shaft of the driving motor 16 is connected to one end of the driving screw 17. The guide rod 18 is arranged in parallel with the driving screw 17 and is vertically fixedly connected to the two mounting plates 112 through both ends. In this embodiment, the driving screw 17 and the guide rod 18 avoid the middle water divider 13. The lower surface of the movable seat 12 is fixed with connecting blocks at positions on both sides of the water divider 13. The movable seat 12 is threadedly connected to the driving screw 17 through the connecting blocks, and is slidably connected to the guide rod 18 through the connecting blocks. In this embodiment, the driving motor 16 is set as a servo motor and is connected to a controller. The controller controls the rotation direction and rotation time, thereby controlling the relative position of the movable seat 12 and the fixed seat 11.

[0038] In this embodiment, the fixed seat 11 and the movable seat 12 have three position states: the first is that the right docking groove 131 is opposite to and connected with the left water diversion channel 14, the left docking groove 131 is opposite to the lower surface of the fixed seat 11 and is closed, and the water flow only enters the high water level main pipe 3 through the water diverter 13, and the water flow is sprayed outward by the high water level branch pipe group 5; the second is that the right docking groove 131 is opposite to and connected with the right water diversion channel 14, the left docking groove 131 is opposite to the left water diversion channel 14, and the left docking groove 131 is opposite to the left water diversion channel 14. The water diversion channels 14 on the sides are relative and connected, and the water flows into the high water level main pipe 3 and the low water level main pipe 4 respectively through the water divider 13, and the high water level branch pipe group 5 and the low water level branch pipe group 6 spray water at the same time; the third type is that the docking groove 131 on the left is relative and connected to the water diversion channel 14 on the right, and the docking groove 131 on the right is relative to the lower surface of the fixed seat 11 and is closed, and the water flows only through the water divider 13 into the low water level main pipe 4, and the low water level branch pipe group 6 sprays water outward.

[0039] In another implementation of this embodiment, the controller also has a timing function to control the duration of the three states, thereby achieving timed alternating irrigation.

[0040] In order to improve the sealing performance when the water divider 13 and the water diversion channel 14 are connected, a sealing member 19 is added to the docking groove 131 of the water divider 13 in the present embodiment. The sealing member 19 includes a pressure spring 191 fixed to the bottom of the step of the docking groove 131 and a sealing ring 192 connected to the end of the pressure spring 191. The outer surface of the sealing ring 192 abuts against the inner wall of the docking groove 131. The outer end is provided with a chamfer that can be inserted into the water diversion channel 14 with a length of 2-5 mm. When the fixed seat 11 and the movable seat 12 slide relative to each other, it is convenient for the sealing ring 192 to slide out of the water diversion channel 14. A 5 mm deep flaring groove can also be provided at the lower end of the water diversion channel 14 to facilitate the insertion of the sealing ring 192.

[0041] The high water level branch pipe group 5 has the same structure as the low water level branch pipe group 6, and the difference lies in the height. Taking the high water level branch pipe group 5 as an example, the high water level branch pipe group 5 includes a base 51, a high water level branch pipe 52, a nozzle 53, a pipe joint 54 and a fixing clamp 55. The base 51 is set as a long strip plate, and the length direction is perpendicular to the direction of the high water level main pipe 3. The base 51 can be fixed on the ground by anchor rods set at the front and rear ends. The pipe joint 54 adopts a three-way pipe joint, and the two opposite joints are connected to the high water level main pipe 3, and the other joint is vertically connected to the high water level branch pipe 52. The nozzle 53 is installed on the high water level branch pipe 52, and the nozzle 53 outlet is upward and inclined to the irrigation area. The fixing clamp 55 can adopt a U-shaped clamp, which is connected to one end of the base 51 deep into the greening area. The fixing clamp 55 fixes the two opposite joints of the pipe joint 54 so that the high water level branch pipe 52 remains in a vertical upward state. The low water level branch pipe group 6 includes a low water level branch pipe 61 . The setting height of the low water level branch pipe 61 is half of the height of the high water level branch pipe 52 .

[0042] The control mechanism 2 is slidably connected to the base 51 and moves close to or away from the high water level branch pipe 52. The control mechanism 2 includes a slide 21, a vertical rod 22, a guide plate 23 and a C-shaped card plate 25. The slide 21 is set as a rectangular plate close to the upper surface of the base 51. The C-shaped card plate 25 is provided with two left and right sides connected to the moving direction of the slide 21. The opening directions of the two C-shaped card plates 25 are opposite. Guide plates 56 with a smaller thickness are provided on both sides of the base 51. The two C-shaped card plates 25 are clamped on the guide plates 56 and can move along the guide plates 56 to prevent the slide 21 from sliding on the base 51. The slide 21 is threadedly connected with a locking bolt 57. The locking bolt 57 passes through the slide 21 downward, and the lower end thereof abuts against the base 51 to lock and fix the slide 21 with the base 51. The vertical pole 22 is set as a hollow square tube, fixed on one end of the slide 21 that penetrates into the irrigation area and tilted forward, and an opening that penetrates to the upper and lower ends is set on the side facing the high water level branch pipe 52. Through the translation of the slide 21, the high water level branch pipe 52 and the nozzle 53 can enter the vertical pole 22 through the opening on the vertical pole 22, so that the vertical pole 22 can protect the high water level branch pipe 52 and the nozzle 53, and prevent the high water level branch pipe 52 and the nozzle 53 from being damaged by collision of external factors. The guide plate 23 is rotatably connected to the top of the vertical pole 22 by bolts as a rotating shaft, and the axial direction of the bolt is parallel to the high water level main pipe 3. The connecting nut on the bolt serves as a locking nut to stabilize the guide plate 23 at a certain angle. In this embodiment, the guide plate 23 and the vertical pole 22 form an obtuse angle. A water guide groove 24 is provided on the lower surface of the guide plate 23 (i.e., the downward side), and the water guide groove 24 spreads toward the end away from the vertical pole 22, forming a fan-shaped or trapezoidal shape with gradually increasing width. The water flow sprayed by the nozzle 53 hits the water guide groove 24, diffuses through the water guide groove 24, and is sprayed out.

[0043] In the present application, the spray angle and spray distance of the nozzle 53 are controlled by adjusting the relative position between the guide plate 23 and the nozzle 53. When the vertical pole 22 is close to the high water level branch pipe 52, the water column sprayed by the nozzle 53 has a lower landing point in the water guide groove 24, and the water column falls closer after being guided by the guide plate 23, and the irrigation distance is short; when the vertical pole 22 is far away from the high water level branch pipe 52, the water column sprayed by the nozzle 53 has a higher landing point in the water guide groove 24, and the water column falls farther after being guided by the guide plate 23, and the irrigation distance is far. When the guide plate 23 has a small inclination angle, the water column rises at a small angle; when the guide plate has a large inclination angle, the water rises at a large angle.

[0044] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An alternating irrigation device, characterized in that: The invention comprises a mobile water source distribution mechanism (1), at least two irrigation main pipes laid along the edge of an irrigation area, a plurality of irrigation branch pipe assemblies distributed along the direction of the irrigation main pipes, and a control mechanism (2) for controlling the spray angle and spray distance of the irrigation branch pipe assemblies. The irrigation main pipe comprises a high water level main pipe (3) and a low water level main pipe (4). The irrigation branch pipe assembly comprises a high water level branch pipe group (5) connected to the high water level main pipe (3) and a low water level branch pipe group (6) connected to the low water level main pipe (4). The mobile water source distribution mechanism (1) is connected to the high water level main pipe (3) and / or the low water level main pipe (4) by translation. The control mechanism (2) controls the spray angle and spray distance of the high water level branch pipe group (5) and the low water level branch pipe group (6) by translation.

2. An alternating irrigation device according to claim 1, characterized in that: The mobile water source distribution mechanism (1) comprises a fixed seat (11), a movable seat (12) slidably connected to the fixed seat (11), a water distributor (13) connected to the movable seat (12), and a driving assembly for driving the movable seat (12) to translate; the fixed seat (11) is provided with a water distribution channel (14) respectively connected to a high water level main pipe (3) and a low water level main pipe (4); the water distributor (13) is provided with a water distribution pipe (15); the end of the water distribution pipe (15) is connected to a water source.

3. An alternating irrigation device according to claim 2, characterized in that: The fixed seat (11) contacts the movable seat (12) through the lower surface; a support leg (111) for supporting the fixed seat (11) is provided at the top corner of the lower surface of the fixed seat (11); mounting plates (112) for mounting a driving assembly are provided at both ends of the fixed seat (11); the driving assembly comprises a driving motor (16) connected to the outer side of the mounting plate (112), a driving screw (17) connected to the output shaft of the driving motor (16), and a guide rod (18) arranged parallel to the driving screw (17); the driving screw (17) is rotatably connected between the two mounting plates (112); the guide rod (18) is fixedly connected between the two mounting plates (112); and the movable seat (12) is threadedly connected to the driving screw (17).

4. An alternating irrigation device according to claim 2 or 3, characterized in that: A protective plate (113) is provided extending outwardly around the fixing seat (11).

5. An alternating irrigation device according to claim 2 or 3, characterized in that: The water distributor (13) is provided with a circular docking groove (131) on one side facing the fixed seat (11), and a sealing member (19) is arranged in the docking groove (131). The sealing member (19) comprises a pressure spring (191) fixed to the bottom of the docking groove (131) and a sealing ring (192) connected to the end of the pressure spring (191). The outer surface of the sealing ring (192) abuts against the side wall of the docking groove (131), and the end of the sealing ring (192) can be inserted into the water distribution channel (14).

6. An alternating irrigation device according to claim 1, characterized in that: The high water level branch pipe group (5) comprises a base (51) fixed on the ground, a high water level branch pipe (52) connected to the high water level main pipe (3), a nozzle (53) connected to the top of the high water level branch pipe (52), and a pipe joint (54) for connecting the high water level main pipe (3) and the high water level branch pipe (52); a fixing clamp (55) for fixing the pipe joint (54) is provided on the base (51); and the structure of the low water level branch pipe group (6) is the same as that of the high water level branch pipe group (5).

7. An alternating irrigation device according to claim 6, characterized in that: The low water level branch pipe group (6) comprises a low water level branch pipe (61), wherein a plurality of low water level branch pipes (61) and a plurality of high water level branch pipes (52) are arranged alternately, and the height of the low water level branch pipe (61) is lower than the height of the high water level branch pipe (52).

8. An alternating irrigation device according to claim 6 or 7, characterized in that: The length direction of the base (51) is perpendicular to the direction of the high water level main pipe (3), and the control mechanism (2) is slidably connected to the base (51) to approach or move away from the high water level branch pipe (52).

9. An alternating irrigation device according to claim 8, characterized in that: The control mechanism (2) comprises a slide seat (21) slidably connected to a base (51), a vertical rod (22) fixedly connected to the slide seat (21), and a guide plate (23) rotatably connected to the top of the vertical rod (22); an obtuse angle is formed between the guide plate (23) and the vertical rod (22); a fan-shaped or trapezoidal water guide groove (24) is provided on the lower surface of the guide plate (23) and spreads toward an end away from the vertical rod (22).

10. An alternating irrigation device according to claim 9, characterized in that: Guide plates (56) are arranged on both sides of the base (51), C-shaped clamping plates (25) clamped on the guide plates (56) are arranged on both sides of the slide seat (21), and a locking bolt (57) with an end abutting against the base (51) is threadedly connected on the slide seat (21).

Images