Irrigation device for agricultural planting

Abstract

The invention relates to the technical field of irrigation equipment, in particular to an irrigation device for agricultural planting, which comprises a vertical pipe fixed on a main water pipe through a flange plate, a spray head, a fixed disc, a rotating shaft, a connecting assembly and a limiting assembly, a spray pipe is arranged at the top of the vertical pipe, the spray head is arranged at the top of the spray pipe, the fixed disc is fixedly arranged at the top of the vertical pipe, and conical teeth are arranged at the top of the fixed disc; an impeller is arranged in the spray pipe, a first bevel gear is arranged on the outer side of the spray pipe, the rotating shaft is rotationally arranged on the outer side of the spray pipe, a second bevel gear is fixedly arranged on the rotating shaft, an eccentric wheel is arranged on the outer side of the spray pipe, the connecting assembly is arranged on the outer side of the spray pipe, and the limiting assembly is arranged on the outer side of the vertical pipe. The impeller drives the first bevel gear to rotate, then the meshing teeth drive the spray pipe to rotate on the fixing disc, the spray head sprays water with the vertical pipe as the circle center, meanwhile, the arranged connecting assembly drives the spray head to swing up and down, water can fall in the area close to the vertical pipe, and the spray irrigation range is widened.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation equipment, in particular to an irrigation device for agricultural planting. Background Art

[0002] Agricultural irrigation mainly refers to irrigation operations in agricultural cultivated areas. Agricultural irrigation methods can generally be divided into traditional surface irrigation, ordinary sprinkler irrigation and micro-irrigation. Traditional surface irrigation includes furrow irrigation, ditch irrigation, flooding irrigation and overwater irrigation. With the progress of the times and the development of science and technology, the irrigation level of my country's agriculture has become more and more developed. There are some sprinkler irrigation devices that can cover a large area and can be fast and even, as well as drip irrigation systems that save water resources and can irrigate accurately.

[0003] When using sprinkler heads placed in the planting area for sprinkler irrigation, the position of the sprinkler heads is fixed, and the water source sprays in a fixed direction, resulting in a limited sprinkler range. The planting area located in the blind spot on the side of the sprinkler head is difficult to be sprayed with water. For this reason, we propose an irrigation device for agricultural planting. Summary of the invention

[0004] The object of the present invention is to provide an irrigation device for agricultural planting, so as to solve the problem of limited irrigation range caused by the fixed irrigation nozzle proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an agricultural planting irrigation device, comprising a vertical pipe fixed on a main water pipe through a flange, a nozzle, a fixed plate, a rotating shaft, a connecting assembly and a limiting assembly, a nozzle is rotatably provided on the top of the vertical pipe, a plurality of mounting brackets are fixedly provided on the top of the nozzle, the nozzle is arranged in the mounting bracket, a water inlet pipe is fixedly provided on the water inlet of the nozzle, and one end of the water inlet pipe away from the nozzle is fixedly connected with the nozzle, the fixed plate is fixedly provided on the top of the vertical pipe, a conical gear is annularly fixedly provided on the top of the fixed plate, a water-driven impeller is arranged in the nozzle, a first bevel gear meshing with the conical gear is arranged on the outside of the nozzle, the first bevel gear is controlled to rotate by the impeller, a rotating shaft is rotatably provided on the outside of the nozzle, a second bevel gear meshing with the conical gear is fixedly provided on the rotating shaft, an eccentric wheel is arranged on the outside of the nozzle, a connecting assembly is arranged on the outside of the nozzle, and is used to transmit the driving force of the rotating shaft to the eccentric wheel, and drive the nozzle to move up and down through the connecting assembly, and a limiting assembly for preventing the vertical pipe from swinging is arranged on the outside of the vertical pipe.

[0006] Preferably, an installation box is fixedly provided at the connection between the nozzle and the vertical pipe, and the installation box is arranged on the top of the fixed plate. A fixed shaft is rotatably provided in the installation box, and the impeller is fixed to the outside of the fixed shaft. One end of the fixed shaft close to the first bevel gear passes through the installation box and is fixedly provided with a first gear. A second gear is fixedly provided on the gear shaft of the first bevel gear, and the second gear is meshed with the first gear.

[0007] Preferably, the connecting assembly includes a toothed belt, a third gear is fixed on the rotating shaft, an auxiliary shaft is rotatably provided on the outer side of the nozzle, an eccentric wheel is fixed on the outer side of the auxiliary shaft, a fourth gear is fixed on the outer side of the auxiliary shaft, the toothed belt sleeve is arranged on the outer sides of the third gear and the fourth gear, and is meshed with the third gear and the fourth gear at the same time, an eccentric rod is fixed on the outer side of the eccentric wheel, a first connecting rod is rotatably provided on the eccentric rod, a sliding ring is slidably provided on the outer side of the nozzle, a convex shaft is fixed on the outer bottom of the sliding ring, the convex shaft is rotatably connected to one end of the first connecting rod away from the eccentric rod, an evenly distributed auxiliary frame is fixed on the top of the sliding ring, a second connecting rod is rotatably provided in the auxiliary frame, and one end of the second connecting rod away from the auxiliary frame is rotatably connected to the outer side of the nozzle.

[0008] Preferably, a fixed ball and a spherical shell are provided between the second connecting rod and the nozzle. The spherical shell is fixed to the outside of the nozzle, the fixed ball is fixed to the top of the second connecting rod, the fixed ball is rotatably connected to the inside of the spherical shell, and an opening is provided at the bottom of the spherical shell for the second connecting rod to slide.

[0009] Preferably, the blades of the impeller extend into the interior of the nozzle.

[0010] Preferably, the limit assembly includes a limit rod, an external thread is provided on the outer side of the vertical tube, a fixed seat is provided on the outer side of the vertical tube through the external thread, a limit ring is rotatably provided on the outer side of the fixed seat, a uniformly distributed limit frame is fixedly provided on the bottom of the limit ring, the top end of the limit rod is rotatably provided in the limit frame, the bottom end of the limit rod is rotatably provided with a support foot, a support frame is fixedly provided on the bottom of the fixed plate, the support frame passes through the limit ring and is slidably connected to the limit ring.

[0011] Preferably, a limiting nail is provided in the support foot through a thread.

[0012] Preferably, the axes where the gear shaft and the rotating shaft of the first bevel gear are located both pass through the axis of the nozzle.

[0013] Preferably, a guide block is fixedly provided in the installation box, and the impeller rotates in an arc-shaped groove provided on the outer side of the guide block.

[0014] Preferably, the nozzle is a mist nozzle.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention optimizes the traditional sprinkler irrigation device. By arranging a nozzle, an impeller, a first bevel gear and a fixed plate with conical teeth, the impeller drives the first bevel gear to rotate under the drive of water flow, and then drives the nozzle as a whole to rotate on the fixed plate through the meshing teeth, so that the nozzle sprays water with the vertical pipe as the center of the circle. At the same time, the connecting assembly arranged can drive the nozzle to swing up and down when spraying water, so that water can fall on the area close to the vertical pipe, thereby increasing the sprinkler irrigation range.

[0016] 2. The present invention arranges the second connecting rods at the bottom of all the nozzles on the same sliding ring, ensuring that the eccentric wheel can drive all the nozzles to swing up and down at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the outer structure of the nozzle of the present invention; Figure 3 This is a schematic structural diagram of another viewing angle of the outer side of the nozzle of the present invention; Figure 4 This is a schematic diagram of the internal structure of the installation box of the present invention; Figure 5 This is a schematic diagram of the structure of the connection assembly of the present invention; Figure 6 This is a schematic diagram of the structure connection of the toothed belt of the present invention; Figure 7 It is a schematic diagram of the connection between the nozzle and the second connecting rod of the present invention; Figure 8 This is a schematic diagram of the structure of the fixing seat of the present invention; Fig. 9 This is a schematic diagram of the distribution of the first bevel gear and the second bevel gear on the outside of the nozzle of the present invention.

[0018] In the figure: 1, vertical pipe; 2, nozzle; 3, nozzle; 4, mounting frame; 5, water inlet pipe; 6, fixed plate; 7, conical teeth; 8, impeller; 9, rotating shaft; 10, eccentric wheel; 11, connecting assembly; 12, limit assembly; 13, mounting box; 14, fixed shaft; 15, first bevel gear; 16, second bevel gear; 17, first gear; 18, second gear; 19, toothed belt; 20, third gear; 21, auxiliary shaft; 22, fourth gear; 23, eccentric rod; 24, first connecting rod; 25, sliding ring; 26, convex shaft; 27, auxiliary frame; 28, second connecting rod; 29, fixed ball; 30, spherical shell; 31, opening; 32, limit rod; 33, external thread; 34, fixed seat; 35, limit ring; 36, limit frame; 37, support foot; 38, support frame; 39, limit pin; 40, guide block; 41, extension rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Fig. 9 The diagram shows an irrigation device for agricultural planting, comprising a vertical pipe 1 fixed to a main water pipe through a flange, a nozzle 2, a fixed plate 6, a rotating shaft 9, a connecting assembly 11 and a limiting assembly 12. A nozzle 3 is rotatably provided on the top of the vertical pipe 1, and a plurality of mounting brackets 4 are fixedly provided on the top of the nozzle 3. The nozzle 2 is arranged in the mounting bracket 4. The nozzle 2 is a mist nozzle, which can break the water entering the nozzle 2 into mist particles and spray them out to ensure the uniformity of water spraying in the planting area. A water inlet pipe 5 is fixedly provided at the water inlet of the nozzle 2. The water inlet pipe 5 is a plastic hose that can adapt to the swing of the nozzle 2. The end of the water inlet pipe 5 away from the nozzle 2 is fixedly connected to the nozzle 3. The fixed plate 6 is fixedly provided on the top of the vertical pipe 1, and a conical tooth 7 is fixedly provided on the top of the fixed plate 6 in an annular shape. A water-driven impeller 8 is provided in the nozzle 3. A first bevel gear 15 meshing with the bevel gear 7 is provided on the outside of the nozzle 3, and the first bevel gear 15 is controlled to rotate by the impeller 8. The rotating shaft 9 is rotatably arranged on the outside of the nozzle 3, and a second bevel gear 16 meshing with the bevel gear 7 is fixedly arranged on the rotating shaft 9. The gear ring of the bevel gear 7 faces outward. When meshing, the tooth shape of the outer gear ring is directly exposed, which is convenient for full contact with the external gear, and helps to improve the stability and load-bearing capacity of the transmission. The axis of the gear shaft of the first bevel gear 15 and the axis of the rotating shaft 9 both pass through the axis of the nozzle 3. An eccentric wheel 10 is provided on the outside of the nozzle 3, and a connecting assembly 11 is arranged on the outside of the nozzle 3 for transmitting the driving force of the rotating shaft 9 to the eccentric wheel 10, and driving the nozzle 2 to move up and down through the connecting assembly 11. A limit assembly 12 for preventing the vertical pipe 1 from swinging is arranged on the outside of the vertical pipe 1; In this solution, by setting the nozzle 3, the impeller 8, the first bevel gear 15 and the fixed plate 6 with conical teeth 7, under the drive of the water flow, the impeller 8 drives the first bevel gear 15 to rotate, and then drives the nozzle 3 as a whole to rotate on the fixed plate 6 through the meshing teeth, so that the nozzle 2 sprays water with the vertical pipe 1 as the center of the circle. At the same time, the connecting component 11 can drive the nozzle 2 to swing up and down when spraying water, so that the water can fall on the area close to the vertical pipe 1, thereby increasing the irrigation range.

[0021] Among them, see Figure 2 and Figure 4 A mounting box 13 is fixedly provided at the connection between the nozzle 3 and the vertical pipe 1. The mounting box 13 is arranged on the top of the fixed plate 6. A fixed shaft 14 is rotatably provided in the mounting box 13. The impeller 8 is fixed to the outside of the fixed shaft 14. One end of the fixed shaft 14 close to the first bevel gear 15 passes through the mounting box 13 and is fixed with a first gear 17. A second gear 18 is fixed on the gear shaft of the first bevel gear 15, and the second gear 18 is meshed with the first gear 17. At the same time, in order to transmit the force of the rotating shaft 9 to the nozzle 2, see Figure 3 , Figure 5 and Figure 6, the connecting assembly 11 includes a toothed belt 19, a third gear 20 is fixed on the rotating shaft 9, an auxiliary shaft 21 is rotatably provided on the outer side of the nozzle 3, an eccentric wheel 10 is fixed on the outer side of the auxiliary shaft 21, a fourth gear 22 is fixed on the outer side of the auxiliary shaft 21, the toothed belt 19 is sleeved on the outer sides of the third gear 20 and the fourth gear 22, and is meshed with the third gear 20 and the fourth gear 22 at the same time, an eccentric rod 23 is fixed on the outer side of the eccentric wheel 10, a first connecting rod 24 is rotatably provided on the eccentric rod 23, a sliding ring 25 is slidably provided on the outer side of the nozzle 3, a convex shaft 26 is fixed on the outer bottom of the sliding ring 25, the convex shaft 26 is rotatably connected to the end of the first connecting rod 24 away from the eccentric rod 23, an evenly distributed auxiliary frame 27 is fixed on the top of the sliding ring 25, a second connecting rod 28 is rotatably provided in the auxiliary frame 27, and the end of the second connecting rod 28 away from the auxiliary frame 27 is rotatably connected to the outer side of the nozzle 2; It is worth noting that Figure 4 As shown, the blades of the impeller 8 extend into the interior of the nozzle 3, increasing the contact area between the blades of the impeller 8 and the water flow, thereby ensuring that the water flow smoothly drives the impeller 8 to rotate; The principle of the connecting component 11 transmitting the force of the rotating shaft 9 to the nozzle 2 is as follows: first, the nozzle 3 rotates on the fixed plate 6, driving the second bevel gear 16 to roll on the conical teeth 7 of the fixed plate 6, and driving the rotating shaft 9 to rotate through the meshing of the teeth, thereby driving the third gear 20 to rotate, and the third gear 20 drives the fourth gear 22 to rotate through the toothed belt 19, and then drives the auxiliary shaft 21 to rotate, and the auxiliary shaft 21 drives the eccentric wheel 10 fixed on the outside to rotate, and the eccentric shaft set at the eccentric position of the eccentric wheel 10 drives the bottom end of the first connecting rod 24 to rotate around the auxiliary shaft 21, thereby driving the top end of the first connecting rod 24 to move on the convex shaft 26, and the convex shaft 26 fixed on the outside of the sliding ring 25 drives the sliding ring 25 to slide up and down on the outside of the nozzle 3, thereby driving all the nozzles 2 to swing up and down at the same time through the second connecting rod 28, so as to realize the spraying of water in the radial area of ​​the vertical pipe 1.

[0022] It should also be noted that, see Figure 1 and Figure 8 In order to ensure the stability of the sprinkler head 2 when it is swinging and spraying water, the limiting assembly 12 is described: the limiting assembly 12 includes a limiting rod 32, an external thread 33 is provided on the outer side of the vertical pipe 1, a fixing seat 34 is threadedly provided on the outer side of the vertical pipe 1 through the external thread 33, a limiting ring 35 is rotatably provided on the outer side of the fixing seat 34, and a uniformly distributed limiting frame 36 is fixedly provided at the bottom of the limiting ring 35. The top end of the limiting rod 32 is rotatably provided in the limiting frame 36, and a supporting foot 37 is rotatably provided at the bottom end of the limiting rod 32. A limiting nail 39 is threadedly provided in the supporting foot 37, and the supporting foot 37 is fixed by driving the limiting nail 39 into the soil, and a supporting frame 38 is fixedly provided at the bottom of the fixing plate 6, and the supporting frame 38 passes through the limiting ring 35 and is slidably connected with the limiting ring 35; The fixing seat 34 is driven to move up and down on the outside of the vertical pipe 1 by rotating the fixing seat 34, and the position of the fixing seat 34 is fixed by the thread. In the process of the fixing seat 34 moving up and down, the limiting rod 32 is opened, so that the support leg 37 is pressed against the ground. As the fixing seat 34 moves up and down, the support leg 37 slides back and forth on the ground to support the device. When the opening angle of the limiting rod 32 reaches a suitable angle, the position of the support leg 37 is fixed by driving the limiting nail 39 into the soil, thereby fixing the position of the limiting rod 32. The limiting rod 32 is used to support the outside of the vertical pipe 1 to prevent the sprinkler 2 from driving the device to shake when spraying water.

[0023] In this scheme, the steps for spraying water on the planting area are: First, the vertical pipe 1 is connected and fixed to the main water pipe through the flange; After the vertical pipe 1 is connected and fixed to the main water pipe, the fixing seat 34 is driven to move downward by the rotation of the fixing seat 34, the limit rod 32 is opened, and the support leg 37 is pressed against the ground until the limit rod 32 is opened to a specified angle, and the support leg 37 is fixed to the ground by the limit nail 39, so as to stabilize the whole device; During sprinkler irrigation, water in the main water pipe enters the nozzle 3 through the vertical pipe 1, and finally enters the nozzle 2 through the water inlet pipe 5 for spraying. When the water flows through the impeller 8, it drives the impeller 8 to rotate, and then drives the first gear 17 to rotate through the fixed shaft 14. The first gear 17 drives the first bevel gear 15 to rotate through the meshing with the second gear 18, so that the meshing of the first bevel gear 15 and the conical teeth 7 on the outer side of the fixed plate 6 drives the nozzle 3 to rotate on the fixed plate 6 as a whole, thereby driving the water sprayed from the nozzle 2 to rotate, and realizing sprinkler irrigation in a circular area; When the nozzle 3 rotates to achieve circular spraying, the second bevel gear 16 moves on the conical teeth 7 on the outside of the fixed disk 6, thereby driving the eccentric wheel 10 to rotate through the rotating shaft 9, the third gear 20, the toothed belt 19, the fourth gear 22, and the auxiliary shaft 21. The eccentric wheel 10 drives the sliding ring 25 to slide up and down through the eccentric rod 23 and the first connecting rod 24, thereby driving the nozzle 2 to swing up and down at the same time through the second connecting rod 28 connected to the sliding ring 25, so that the water sprayed by the nozzle 2 swings back and forth in the radial area of ​​the vertical pipe 1, and the area of ​​the planting area close to the vertical pipe 1 is irrigated to ensure the uniformity of the sprinkler irrigation.

[0024] Example 2: Please refer to Figure 1 and Figure 8 This embodiment further explains the first embodiment, and the difference lies in the optimization of the fixing seat 34.

[0025] Specifically, evenly distributed extension rods 41 are fixedly disposed on the top of the fixing seat 34; In this solution, since the fixed seat 34 is located inside the support frame 38, directly rotating the fixed seat 34 by hand during operation will be interfered by the support frame 38. Therefore, the extension rod 41 is designed to allow workers to drive the fixed seat 34 to rotate by turning the extension rod 41, which reduces the interference from the support frame 38 during operation.

[0026] Example 3: Please refer to Figure 4 This embodiment further explains other embodiments, and the difference lies in the optimization of the structure of the installation box 13.

[0027] Specifically, a guide block 40 is fixedly provided in the installation box 13, and the impeller 8 rotates in an arc groove provided outside the guide block 40. The guide block 40 guides the water flow to hit the impeller 8 more directly, and can also drive the impeller 8 to rotate when the water flow is small.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An irrigation device for agricultural planting, comprising a vertical pipe (1) fixed to a main water pipe via a flange; It is characterized in that Also includes: A spray head (2), wherein a spray pipe (3) is rotatably provided at the top of the vertical pipe (1), a plurality of mounting frames (4) are fixedly provided at the top of the spray pipe (3), the spray head (2) is arranged in the mounting frames (4), a water inlet pipe (5) is fixedly provided at the water inlet of the spray head (2), and an end of the water inlet pipe (5) away from the spray head (2) is fixedly connected to the spray pipe (3); a fixed plate (6), the fixed plate (6) being fixedly mounted on the top of the vertical pipe (1), the top of the fixed plate (6) being annularly fixedly provided with conical teeth (7), the nozzle (3) being provided with a water-driven impeller (8), the nozzle (3) being provided with a first conical gear (15) meshing with the conical teeth (7), the first conical gear (15) being controlled to rotate by the impeller (8); a rotating shaft (9), the rotating shaft (9) being rotatably arranged outside the nozzle (3), a second bevel gear (16) meshing with the bevel gear (7) being fixedly arranged on the rotating shaft (9), and an eccentric wheel (10) being arranged outside the nozzle (3); A connecting component (11) is arranged outside the nozzle (3) and is used to transmit the driving force of the rotating shaft (9) to the eccentric wheel (10), thereby driving the nozzle (2) to move up and down through the connecting component (11); A limiting component (12) is used to prevent the vertical pipe (1) from swinging. The limiting component (12) is arranged outside the vertical pipe (1).

2. The agricultural irrigation device according to claim 1, characterized in that: A mounting box (13) is fixedly provided at the connection between the nozzle (3) and the vertical pipe (1), the mounting box (13) being arranged on the top of the fixed plate (6), a fixed shaft (14) being rotatably provided in the mounting box (13), the impeller (8) being fixed to the outside of the fixed shaft (14), an end of the fixed shaft (14) close to the first bevel gear (15) passing through the mounting box (13) and being fixedly provided with a first gear (17), a second gear (18) being fixedly provided on the gear shaft of the first bevel gear (15), the second gear (18) being meshed with the first gear (17).

3. The agricultural irrigation device according to claim 2, characterized in that: The connecting assembly (11) comprises a toothed belt (19), a third gear (20) is fixedly provided on the rotating shaft (9), an auxiliary shaft (21) is rotatably provided on the outer side of the nozzle (3), the eccentric wheel (10) is fixedly provided on the outer side of the auxiliary shaft (21), a fourth gear (22) is fixedly provided on the outer side of the auxiliary shaft (21), the toothed belt (19) is sleeved on the outer sides of the third gear (20) and the fourth gear (22), and is meshed with the third gear (20) and the fourth gear (22) at the same time, an eccentric rod (23) is fixedly provided on the outer side of the eccentric wheel (10), and the A first connecting rod (24) is rotatably provided on the eccentric rod (23), a sliding ring (25) is slidably provided on the outer side of the nozzle (3), a convex shaft (26) is fixedly provided on the outer bottom of the sliding ring (25), and the convex shaft (26) is rotatably connected to an end of the first connecting rod (24) away from the eccentric rod (23), and an evenly distributed auxiliary frame (27) is fixedly provided on the top of the sliding ring (25), and a second connecting rod (28) is rotatably provided in the auxiliary frame (27), and an end of the second connecting rod (28) away from the auxiliary frame (27) is rotatably connected to the outer side of the nozzle (2).

4. The agricultural irrigation device according to claim 3, characterized in that: A fixing ball (29) and a spherical shell (30) are provided between the second connecting rod (28) and the nozzle (2); the spherical shell (30) is fixedly provided on the outside of the nozzle (2); the fixing ball (29) is fixedly provided on the top end of the second connecting rod (28); the fixing ball (29) is rotatably connected to the inside of the spherical shell (30); and an opening (31) for the sliding of the second connecting rod (28) is provided at the bottom of the spherical shell (30).

5. The agricultural irrigation device according to claim 1, characterized in that: The blades of the impeller (8) extend into the interior of the nozzle (3).

6. The agricultural irrigation device according to claim 1, characterized in that: The limiting assembly (12) comprises a limiting rod (32), an outer side of the vertical tube (1) is provided with an external thread (33), a fixing seat (34) is threadedly provided on the outer side of the vertical tube (1) through the external thread (33), a limiting ring (35) is rotatably provided on the outer side of the fixing seat (34), a limiting frame (36) evenly distributed is fixedly provided at the bottom of the limiting ring (35), the top end of the limiting rod (32) is rotatably provided in the limiting frame (36), the bottom end of the limiting rod (32) is rotatably provided with a support foot (37), and a supporting frame (38) is fixedly provided at the bottom of the fixing plate (6), and the supporting frame (38) passes through the limiting ring (35) and is slidably connected to the limiting ring (35).

7. The agricultural irrigation device according to claim 6, characterized in that: A limiting nail (39) is provided in the support foot (37) via a thread.

8. The agricultural irrigation device according to claim 2, characterized in that: The axes on which the gear shaft of the first bevel gear (15) and the rotating shaft (9) are located both pass through the axis of the nozzle (3).

9. The agricultural irrigation device according to claim 2, characterized in that: A guide block (40) is fixedly disposed in the installation box (13), and the impeller (8) is rotatably disposed in an arc-shaped groove disposed outside the guide block (40).

10. The agricultural irrigation device according to claim 1, characterized in that: The nozzle (2) is a mist nozzle.

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