Irrigation device for grassland cultivation

Abstract

The utility model provides an irrigation device for grassland cultivation, which relates to the technical field of grassland cultivation irrigation, and comprises a positioning chassis, an adjusting mechanism and a spraying mechanism, the adjusting mechanism comprises a housing, a water inlet pipe, a water outlet pipe, a conical sealing plug and a telescopic assembly, the spraying mechanism comprises a rotating disc, a conveying pipe, a driving assembly, a lifting assembly, a plurality of atomizing nozzles and a plurality of swing assemblies, the swing assemblies are arranged at the top of the rotating disc at equal intervals, and each atomizing nozzle is fixedly arranged on one swing assembly. According to the spraying device, a plurality of atomizing nozzles can be driven to longitudinally swing to adjust the spraying distance, and meanwhile, the plurality of atomizing nozzles can be synchronously driven to horizontally rotate, so that the situation that water cannot be sprayed in a grassland area between every two atomizing nozzles is prevented, spraying dead angles and irrigation omission are further prevented, and improvement of the irrigation efficiency and effect is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of grassland cultivation irrigation, and particularly relates to an irrigation device for grassland cultivation. Background Art

[0002] A water conservancy measure for adjusting the water condition of grassland and creating a good ecological environment for the growth of forage grass. The water requirement of forage grass is generally higher than that of cereal crops planted in dry land. About 0.6-0.7 kg of water is consumed to produce 1 g of dry matter. Grassland irrigation is of great significance for improving the yield and quality of forage grass, improving the microclimate of grassland, increasing ground coverage, preventing soil erosion and desertification.

[0003] The existing grassland cultivation irrigation devices have the following deficiencies:

[0004] 1. The nozzle cannot swing longitudinally and rotate horizontally synchronously, and there is an easy spraying dead angle between every two nozzles, resulting in irrigation omission and reducing the irrigation effect.

[0005] 2. The climate conditions, soil types, humidity and rainfall in different regions are different, and the spraying amount of the nozzle cannot be flexibly adjusted, so the irrigation amount cannot be adjusted, reducing the practicability of the device. Content of the Utility Model

[0006] The purpose of the utility model is to provide an irrigation device for grassland cultivation.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] Provide an irrigation device for grassland cultivation, including a positioning chassis;

[0009] It further includes an adjusting mechanism and a spraying mechanism;

[0010] The adjusting mechanism is arranged on the top of the base through four support rods. The adjusting mechanism includes a housing, a water inlet pipe, a water outlet pipe, a conical plug and a telescopic assembly. The housing is fixedly arranged on the top of the four support rods. The inside of the housing is integrally formed with a water inlet channel. The top of the housing is provided with a water outlet channel. The water outlet channel is communicated with the water inlet channel. The water inlet pipe and the water outlet pipe are respectively arranged at one end of the water inlet channel and the water outlet channel. The telescopic assembly is inserted on the housing. The conical plug is fixedly arranged on the telescopic assembly;

[0011] The spraying mechanism is arranged at the top of the housing. The spraying mechanism includes a turntable, a delivery pipe, a driving component, a lifting component, a number of atomizing nozzles and a number of swinging components. The delivery pipe is rotatably arranged inside the water outlet pipe through a sealed bearing. The driving component is arranged between the housing and the water outlet pipe. The turntable is fixedly arranged on the outer wall of the upper half of the delivery pipe. The lifting component is arranged on the top of the turntable. The number of swinging components are arranged at equal intervals on the top of the turntable. Each atomizing nozzle is fixedly arranged on a swinging component.

[0012] Preferably, the telescopic component includes a lead screw, a micro motor, a slider, a slide bar and a guide bar. A first limit block is fixedly arranged at the bottom of the housing. The guide bar is fixedly arranged at one end of the bottom of the first limit block. A second limit block is fixedly arranged at the bottom end of the guide bar. The lead screw is rotatably arranged between the first limit block and the second limit block. The slider is slidably arranged on the outer wall of the guide bar. The slider is threadedly connected with the lead screw. The micro motor is fixedly arranged at the bottom of the second limit block, and its output end is fixedly connected with the bottom end of the lead screw. The slide bar is slidably arranged on the outer wall of the housing through a sliding bearing. The bottom end and the top end of the slide bar are respectively fixedly connected with the slider and a conical sealing plug. A baffle is fixedly arranged on the inner wall of the water outlet pipe. A water outlet hole is arranged at the center of the baffle. The water outlet hole, the water outlet channel and the axis direction of the conical sealing plug are the same. Two first sealing rings are arranged on the inner wall of the bottom of the housing. The slide bar is inserted into the two first sealing rings.

[0013] Preferably, the driving component includes a DC motor, a first gear and a second gear. The DC motor is fixedly arranged at the top of the housing through a mounting plate. The first gear is fixedly arranged on its output end. The second gear is fixedly arranged on the outer wall of the delivery pipe. The first gear and the second gear are meshed and connected. A sealing cover is fixedly arranged on the top of the baffle. A second sealing ring is arranged inside the sealing cover. The second sealing ring is sleeved on the outer wall of the delivery pipe. The bottom of the second sealing ring is attached to the top of the baffle.

[0014] Preferably, the lifting component includes a micro electric push rod, a push block, a lifting ring, a number of mounting blocks and a number of insertion rods. The lifting ring is slidably arranged on the top of the turntable through two limit rods. The micro electric push rod is fixedly arranged at the top of the base. The push block is fixedly arranged between the output end of the micro electric push rod and the lifting ring. The number of mounting blocks are arranged at equal intervals on the top of the lifting ring. Each insertion rod is fixedly arranged on the side wall of a mounting block.

[0015] Preferably, each swinging component includes a swing rod, a flexible hose and a rigid pipe. A number of limit plates are arranged at equal intervals on the outer wall of the turntable. The rigid pipe is rotatably arranged between two of the limit plates through two rotating shafts. The atomizing nozzle is fixedly connected with one end of the rigid pipe. The swing rod and the flexible hose are both fixedly arranged at the other end of the rigid pipe. An avoidance groove for the insertion rod to slide is arranged on the outer wall of the swing rod.

[0016] Preferably, a shunt pipe is fixedly arranged at the top end of the delivery pipe. Each end of the flexible hose away from the rigid pipe is fixedly connected with the shunt pipe.

[0017] Preferably, a number of positioning holes are symmetrically arranged on the outer wall of the positioning chassis.

[0018] Preferably, protective shells are detachably arranged at the top and bottom of the cover shell.

[0019] Advantages of the utility model:

[0020] 1. By designing a spraying mechanism, namely a turntable, a conveying pipe, a driving component, a lifting component, a number of atomizing nozzles and a number of swinging components, the number of nozzles are arranged in a circumferential array. First, in this way, through the number of swinging components, while driving the number of atomizing nozzles to swing longitudinally to adjust the spraying distance, the driving component drives the turntable to rotate, so as to synchronously drive the number of atomizing nozzles to rotate horizontally, preventing the grassland area between every two atomizing nozzles from not being sprayed with water, thus preventing the generation of spraying dead angles and irrigation omission, which is beneficial to improving the irrigation efficiency and effect.

[0021] 2. By designing an adjusting mechanism, including a cover shell, a water inlet pipe, a water outlet pipe, a conical plug and a telescopic component, the stroke of the conical sealing plug extending into the water outlet hole can be controlled by the telescopic component, that is, the size of the gap formed between the outer wall of the conical sealing plug and the water outlet hole can be adjusted, and then the amount of water entering the water outlet channel from the water inlet channel can be adjusted, that is, the amount of water input into the conveying pipe by the water outlet pipe can be adjusted, and then the amount of water entering the number of atomizing nozzles can be adjusted, achieving the effect of adjusting the single spraying amount, realizing the adjustment of the irrigation amount, meeting the irrigation requirements of grasslands in different regions, and thus improving the practicability and flexibility of the device.

[0022] 3. By designing two protective shells, considering that the device is installed outdoors and is easily eroded by rain, two protective shells are designed. The protective shell at the bottom of the cover shell is used to cover the lead screw and the micro-motor, and the protective shell at the top of the cover shell is used to cover the DC motor, the first gear and the second gear, preventing rainwater from corroding them, which is beneficial to extending their service life.

[0023] 4. By designing two first sealing rings, the inner rings of the two first sealing rings are tightly attached to the outer circumferential wall of the sliding rod, which can prevent the water conveyed into the water inlet channel from leaking to the outside of the cover shell due to the sliding of the sliding rod. By designing a second sealing ring, the inner ring of the second sealing ring is tightly attached to the outer circumferential wall of the conveying pipe. At the same time, the axis directions of the water outlet hole, the water outlet channel and the conical plug are the same. In addition, the sealing cover covers the sealing ring, which can prevent the water entering the water outlet channel from leaking out during the rotation of the conveying pipe, and thus can prevent the leakage of irrigation water, avoid waste, and ensure the smooth progress of irrigation work. Description of the drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings in the embodiments of the present utility model will be briefly introduced below.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0026] Figure 2 It is a sectional structural schematic diagram of the housing, sealing cover, baffle and water outlet pipe of the present utility model;

[0027] Figure 3 It is Figure 2 the enlarged view of part A in

[0028] Figure 4 It is Figure 2 the enlarged view of part B in

[0029] Figure 5 It is Figure 2 the enlarged view of part C in

[0030] Figure 6 It is a partial three-dimensional structural schematic diagram of the present utility model;

[0031] Figure 7 It is Figure 6 the enlarged view of part D in

[0032] In the figure: positioning chassis 1, housing 2, water inlet pipe 3, water outlet pipe 4, conical plug 5, water inlet channel 6, water outlet channel 7, turntable 8, conveying pipe 9, sealed bearing 10, lead screw 11, micro motor 12, slider 13, slide bar 14, guide bar 15, sliding bearing 16, baffle 17, water outlet hole 18, first sealing ring 19, DC motor 20, first gear 21, second gear 22, sealing cover 23, second sealing ring 24, micro electric push rod 25, push block 26, lifting ring 27, mounting block 28, insertion rod 29, limiting rod 30, swing rod 31, hose 32, rigid pipe 33, rotating shaft 34, avoidance groove 35, shunt pipe 36, positioning hole 37, protective shell 38, atomizing nozzle 39. Detailed implementation manners

[0033] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0034] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product.

[0035] Referring to Figures 1 to 7 as shown, an irrigation device for grassland cultivation includes a positioning chassis 1;

[0036] It also includes an adjusting mechanism and a spraying mechanism;

[0037] The adjusting mechanism is arranged on the top of the base through four support rods. The adjusting mechanism includes a housing 2, a water inlet pipe 3, a water outlet pipe 4, a conical sealing plug 5 and a telescopic assembly. The housing 2 is fixedly arranged on the top of the four support rods. An inlet water channel 6 is integrally formed inside the housing 2. A water outlet channel 7 is arranged on the top of the housing 2. The water outlet channel 7 communicates with the inlet water channel 6. The water inlet pipe 3 and the water outlet pipe 4 are respectively arranged at one ends of the inlet water channel 6 and the water outlet channel 7. The telescopic assembly is inserted on the housing 2. The conical sealing plug 5 is fixedly arranged on the telescopic assembly;

[0038] The spraying mechanism is arranged on the top of the housing 2. The spraying mechanism includes a turntable 8, a delivery pipe 9, a driving assembly, a lifting assembly, a plurality of atomizing nozzles 39 and a plurality of swinging assemblies. The delivery pipe 9 is rotatably arranged inside the water outlet pipe 4 through a sealing bearing 10. The driving assembly is arranged between the housing 2 and the water outlet pipe 4. The turntable 8 is fixedly arranged on the outer wall of the upper half of the delivery pipe 9. The lifting assembly is arranged on the top of the turntable 8. The plurality of swinging assemblies are arranged at equal intervals on the top of the turntable 8. Each atomizing nozzle 39 is fixedly arranged on a swinging assembly.

[0039] Refer to Figures 1 to 7As shown, the telescopic assembly includes a lead screw 11, a micro-motor 12, a slider 13, a slide bar 14 and a guide bar 15. A first limit block is fixedly provided at the bottom of the housing 2. The guide bar 15 is fixedly provided at one end of the bottom of the first limit block. A second limit block is fixedly provided at the bottom end of the guide bar 15. The lead screw 11 is rotatably arranged between the first limit block and the second limit block. The slider 13 is slidably arranged on the outer wall of the guide bar 15. The slider 13 is threadedly connected to the lead screw 11. The micro-motor 12 is fixedly provided at the bottom of the second limit block, and its output end is fixedly connected to the bottom end of the lead screw 11. The slide bar 14 is slidably arranged on the outer wall of the housing 2 through a sliding bearing 16. The bottom end and the top end of the slide bar 14 are respectively fixedly connected to the slider 13 and the conical sealing plug 5. A baffle 17 is fixedly provided on the inner wall of the water outlet pipe 4. A water outlet hole 18 is provided at the center of the baffle 17. The water outlet hole 18, the water outlet channel 7 and the axis direction of the conical sealing plug 5 are the same. Two first sealing rings 19 are provided on the inner wall of the bottom of the housing 2. The slide bar 14 is inserted into the two first sealing rings 19. Based on the climate conditions, soil type, humidity and rainfall in the irrigation area, sometimes it is necessary to adjust the irrigation amount. When it is necessary to adjust the irrigation amount, the micro-motor 12 is started through the controller, so that its output end drives the lead screw 11 to rotate. Since the first limit block and the second limit block are respectively rotatably connected to the two ends of the lead screw 11, the slider 13 is threadedly connected to the lead screw 11, and the slider 13 is also slidably connected to the guide bar 15. In addition, the slider 13 and the conical sealing plug are respectively fixedly connected to the two ends of the slide bar 14, the slide bar 14 is slidably connected to the housing 2 through a sliding bearing 16, and the water outlet hole 18, the water outlet channel 7 and the axis direction of the conical sealing plug 5 are the same. Then it drives the conical sealing plug to rise vertically and approach the water outlet hole 18. By controlling the stroke of the conical sealing plug extending into the water outlet hole 18 through the lead screw 11, the size of the gap formed between the outer wall of the conical sealing plug and the water outlet hole 18 can be adjusted, and then the amount of water entering the water outlet channel 7 from the water inlet channel 6 can be adjusted, that is, the water inflow input from the water outlet pipe 4 into the conveying pipe 9 can be adjusted, and then the water inflow into several atomizing nozzles 39 can be adjusted, achieving the effect of adjusting the single spraying amount and realizing the adjustment of the irrigation amount to meet different irrigation requirements. The inner circles of the two first sealing rings 19 are in close contact with the outer circumferential wall of the slide bar 14, which can prevent the water transported into the water inlet channel 6 from leaking to the outside of the housing 2 due to the sliding of the slide bar 14.

[0040] Referring to Figures 1 to 7As shown in the figure, the driving component includes a DC motor 20, a first gear 21 and a second gear 22. The DC motor 20 is fixedly arranged on the top of the housing 2 through a mounting plate. The first gear 21 is fixedly arranged on its output end. The second gear 22 is fixedly arranged on the outer wall of the conveying pipe 9. The first gear 21 and the second gear 22 are meshed and connected. A sealing cover 23 is fixedly arranged on the top of the baffle 17. A second sealing ring 24 is arranged inside the sealing cover 23. The second sealing ring 24 is sleeved on the outer wall of the conveying pipe 9. The bottom of the second sealing ring 24 is attached to the top of the baffle 17. Since the water sprayed by several atomizing nozzles 39 spreads in a conical shape, there will be a spraying dead angle between every two atomizing nozzles 39. At this time, the DC motor 20 is started through the controller, so that its output end drives the first gear 21 to rotate. The second gear 22 is fixedly connected with the conveying pipe 9. The conveying pipe 9 is rotatably connected with the water outlet pipe 4 through a sealing bearing 10. The top of the conveying pipe 9 is fixedly connected with the turntable 8 and the shunt pipe 36. Thus, the conveying pipe 9 drives the turntable 8 and several atomizing nozzles 39 thereon to rotate synchronously, thereby preventing the generation of spraying dead angles, causing irrigation omission, and improving the irrigation efficiency and effect. The inner ring of the second sealing ring 24 is closely attached to the outer circumferential wall of the conveying pipe 9. At the same time, the water outlet holes 18 and the water outlet channels 7 are in the same axial direction as the axis of the conical plug 5. In addition, the covering of the sealing cover 23 on the sealing ring can prevent the water entering the water outlet channel 7 from leaking out during the rotation of the conveying pipe 9. In addition, the sealing bearing 10 seals the gap between the conveying pipe 9 and the water outlet pipe 4, which can completely prevent the water entering the water outlet channel 7 from leaking out during the rotation of the conveying pipe 9. It should be noted that there is a certain gap between the bottom end of the conveying pipe 9 and the top of the baffle 17. This gap can ensure that the bottom end of the water conveying pipe 9 will not rub against the top of the baffle 17 when it rotates, avoiding wear of the two and reducing the service life.

[0041] Refer to Figures 1 to 7As shown in the figure, the lifting assembly includes a micro electric push rod 25, a push block 26, a lifting ring 27, a plurality of mounting blocks 28 and a plurality of insertion rods 29. The lifting ring 27 is slidably arranged on the top of the turntable 8 through two limiting rods 30. The micro electric push rod 25 is fixedly arranged on the top of the base. The push block 26 is fixedly arranged between the output end of the micro electric push rod 25 and the lifting ring 27. The plurality of mounting blocks 28 are arranged at equal intervals on the top of the lifting ring 27. Each insertion rod 29 is fixedly arranged on the side wall of a mounting block 28. This device is equipped with a controller, and all electrical equipment on the device is electrically connected to the controller. This device belongs to a distributed device, that is, when in use, multiple devices need to be installed in a grassland to achieve the effect of simultaneously irrigating a large area of grassland. The water inlet pipe 3 is used to connect to the water supply pipeline. The water supply pipeline can be buried in the grassland soil. An electromagnetic valve is fixedly installed on the outer wall of the water supply pipeline. When irrigation is required, the electromagnetic valve on the water supply pipeline is started through the controller, so that the water supply pipeline is opened. Water enters the interior of the water inlet pipe 3 from the water supply pipeline, and then passes through the water inlet channel 6 and enters the water outlet pipe 4. At this time, since the conical sealing plug does not extend into the water outlet hole 18, the water outlet hole 18 is in a fully open state, and the water output is the largest at this time. Water enters the conveying pipe 9 from the water outlet hole 18, and then enters the interior of a plurality of atomizing nozzles 39 through the conveying pipe 9, the shunt pipe 36, a plurality of flexible pipes 32 and a plurality of rigid pipes 33. Finally, the grassland is evenly sprayed by the plurality of atomizing nozzles 39 to improve the uniformity of irrigation. The water sprayed by the atomizing nozzles 39 spreads out in a conical shape, which can increase the irrigation area of the grassland to the greatest extent. When it is necessary to adjust the spraying distance, that is, when it is necessary to adjust the spraying area, the micro electric push rod 25 is started through the controller, so that its output end extends or contracts. Since the lifting ring 27 is slidably connected to the turntable 8 through two limiting rods 30, the output end of the micro electric push rod 25 and the lifting ring 27 are respectively fixedly connected to both ends of the push block 26, the plurality of mounting blocks 28 are all fixedly connected to the lifting ring 27, and each insertion rod 29 is fixedly connected to the side wall of a mounting block 28, so as to drive the plurality of insertion rods 29 to reciprocate up and down.

[0042] Refer to Figures 1 to 7As shown in the figure, each swing component includes a swing rod 31, a flexible hose 32, and a rigid pipe 33. A number of limiting plates are equidistantly arranged on the outer wall of the turntable 8. The rigid pipe 33 is rotatably arranged between two of the limiting plates through two rotating shafts 34. The atomizing nozzle 39 is fixedly connected to one end of the rigid pipe 33. Both the swing rod 31 and the flexible hose 32 are fixedly arranged at the other end of the rigid pipe 33. An avoidance groove 35 for the sliding of the insertion rod 29 is formed on the outer wall of the swing rod 31. When each insertion rod 29 reciprocates up and down, since the rigid pipe 33 is rotatably connected to two of the limiting plates through two rotating shafts 34, the atomizing nozzle 39 is fixedly connected to one end of the rigid pipe 33, both the swing rod 31 and the flexible hose 32 are fixedly connected to the other end of the rigid pipe 33, and an avoidance groove 35 for the sliding of the insertion rod 29 is designed on the outer wall of the swing rod 31. Therefore, the contact force generated by the sliding of the insertion rod 29 inside the avoidance groove 35 during its reciprocating up and down is converted by the swing rod 31 into the rotational force of the rigid pipe 33 with the two rotating shafts 34 as the centers, realizing the reciprocating swing of the rigid pipe 33 and the atomizing nozzle 39 at its one end, achieving the effect of adjusting the spraying distance of the atomizing nozzle 39 and meeting the adjustment requirements for different irrigation areas of the grassland.

[0043] Refer to Figures 1 to 7 As shown in the figure, a shunt pipe 36 is fixedly arranged at the top of the delivery pipe 9. Each end of the flexible hose 32 far from the rigid pipe 33 is fixedly connected to the shunt pipe 36. The design of the shunt pipe 36 is mainly used to evenly input the water entering the delivery pipe 9 into the interiors of a number of flexible hoses 32. Since the shunt pipe 36 and each rigid pipe 33 are respectively fixedly connected to both ends of a flexible hose 32, the water enters the interiors of a number of atomizing nozzles 39 through a number of rigid pipes 33, and the grassland is evenly sprayed.

[0044] Refer to Figures 1 to 7 As shown in the figure, a number of positioning holes 37 are symmetrically arranged on the outer wall of the positioning chassis 1. The positioning holes 37 facilitate the fixed connection of the positioning chassis 1 to the ground, thus facilitating the fixation of this device on the ground and preventing it from being blown down by the wind.

[0045] Refer to Figures 1 to 7 As shown in the figure, protective shells 38 are detachably arranged at the top and bottom of the housing 2. Considering that this device is installed outdoors and is easily eroded by rainwater, two protective shells 38 are designed. The protective shell 38 located at the bottom of the housing 2 is used to cover the lead screw 11 and the micro-motor 12, and the protective shell 38 located at the top of the housing 2 is used to cover the DC motor 20, the first gear 21, and the second gear 22, preventing rainwater from corroding them and being beneficial to extending their service life.

[0046] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0047] The above are only specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An irrigation device for grassland cultivation, comprising a positioning chassis (1), characterized in that: It further comprises an adjusting mechanism and a spraying mechanism; The adjusting mechanism is arranged on the top of the base through four support rods. The adjusting mechanism comprises a housing (2), a water inlet pipe (3), a water outlet pipe (4), a conical plug (5) and a telescopic assembly. The housing (2) is fixedly arranged on the top of the four support rods. An inlet water channel (6) is integrally formed inside the housing (2). A water outlet channel (7) is arranged on the top of the housing (2). The water outlet channel (7) communicates with the inlet water channel (6). The water inlet pipe (3) and the water outlet pipe (4) are respectively arranged at one ends of the inlet water channel (6) and the water outlet channel (7). The telescopic assembly is inserted on the housing (2). The conical plug (5) is fixedly arranged on the telescopic assembly; The spraying mechanism is arranged on the top of the housing (2). The spraying mechanism comprises a turntable (8), a conveying pipe (9), a driving assembly, a lifting assembly, a plurality of atomizing nozzles (39) and a plurality of swinging assemblies. The conveying pipe (9) is rotatably arranged inside the water outlet pipe (4) through a sealing bearing (10). The driving assembly is arranged between the housing (2) and the water outlet pipe (4). The turntable (8) is fixedly arranged on the outer wall of the upper half of the conveying pipe (9). The lifting assembly is arranged on the top of the turntable (8). A plurality of swinging assemblies are arranged at equal intervals on the top of the turntable (8). Each atomizing nozzle (39) is fixedly arranged on a swinging assembly.

2. The irrigation device for grassland cultivation according to claim 1, wherein: The telescopic assembly comprises a lead screw (11), a micro-motor (12), a slider (13), a slide bar (14) and a guide rod (15). A first limit block is fixedly arranged at the bottom of the housing (2). The guide rod (15) is fixedly arranged at one end of the bottom of the first limit block. A second limit block is fixedly arranged at the bottom end of the guide rod (15). The lead screw (11) is rotatably arranged between the first limit block and the second limit block. The slider (13) is slidably arranged on the outer wall of the guide rod (15). The slider (13) is threadedly connected with the lead screw (11). The micro-motor (12) is fixedly arranged at the bottom of the second limit block, and its output end is fixedly connected with the bottom end of the lead screw (11). The slide bar (14) is slidably arranged on the outer wall of the housing (2) through a sliding bearing (16). The bottom end and the top end of the slide bar (14) are respectively fixedly connected with the slider (13) and the conical plug (5). A baffle (17) is fixedly arranged on the inner wall of the water outlet pipe (4). A water outlet hole (18) is arranged at the center of the baffle (17). The water outlet hole (18), the water outlet channel (7) and the axis direction of the conical plug (5) are the same. Two first sealing rings (19) are arranged on the inner wall of the bottom of the housing (2). The slide bar (14) is inserted into the two first sealing rings (19).

3. The irrigation device for grassland cultivation according to claim 2, characterized in that: The driving component includes a DC motor (20), a first gear (21) and a second gear (22). The DC motor (20) is fixedly arranged on the top of the housing (2) through a mounting plate. The first gear (21) is fixedly arranged on its output end. The second gear (22) is fixedly arranged on the outer wall of the conveying pipe (9). The first gear (21) and the second gear (22) are meshed and connected. A sealing cover (23) is fixedly arranged on the top of the baffle (17). A second sealing ring (24) is arranged inside the sealing cover (23). The second sealing ring (24) is sleeved on the outer wall of the conveying pipe (9). The bottom of the second sealing ring (24) is attached to the top of the baffle (17).

4. The irrigation device for grassland cultivation according to claim 3, characterized in that: The lifting component includes a micro electric push rod (25), a push block (26), a lifting ring (27), a plurality of mounting blocks (28) and a plurality of inserting rods (29). The lifting ring (27) is slidably arranged on the top of the turntable (8) through two limiting rods (30). The micro electric push rod (25) is fixedly arranged on the top of the base. The push block (26) is fixedly arranged between the output end of the micro electric push rod (25) and the lifting ring (27). The plurality of mounting blocks (28) are arranged at equal intervals on the top of the lifting ring (27). Each inserting rod (29) is fixedly arranged on the side wall of a mounting block (28).

5. The irrigation device for grassland cultivation according to claim 4, wherein: Each swinging component includes a swing rod (31), a flexible pipe (32) and a rigid pipe (33). A plurality of limiting plates are arranged at equal intervals on the outer wall of the turntable (8). The rigid pipe (33) is rotatably arranged between two of the limiting plates through two rotating shafts (34). The atomizing nozzle (39) is fixedly connected to one end of the rigid pipe (33). The swing rod (31) and the flexible pipe (32) are both fixedly arranged at the other end of the rigid pipe (33). An avoidance groove (35) for the inserting rod (29) to slide is formed on the outer wall of the swing rod (31).

6. The irrigation device for grassland cultivation according to claim 5, characterized in that: A shunt pipe (36) is fixedly arranged at the top end of the conveying pipe (9). One end of each flexible pipe (32) far from the rigid pipe (33) is fixedly connected to the shunt pipe (36).

7. The irrigation device for grassland cultivation according to claim 6, characterized in that: A plurality of positioning holes (37) are symmetrically arranged on the outer wall of the positioning chassis (1).

8. The irrigation device for grassland cultivation according to claim 7, wherein: Protective shells (38) are detachably arranged on the top and bottom of the housing (2).

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