An irrigation device for agricultural fruit and vegetable cultivation

Abstract

The application relates to the field of agricultural irrigation technology, in particular to an irrigation device for agricultural fruit and vegetable planting, which comprises a fixing assembly and a water delivery pipeline arranged at the bottom side of the fixing assembly, the fixing assembly comprises a fixing plate, a connecting pipe and a ground plug, the surface of the fixing assembly is provided with spraying structures for irrigation, a supporting structure for stable support is arranged at the bottom side of the spraying structures, and reciprocating structures are arranged outside the supporting structures and are linked with the spraying structures respectively; the spraying structures comprise a bearing seat fixedly installed at the top end of the connecting pipe, a spray pipe rotatably connected to the inside of the bearing seat, a fixing seat fixedly connected to the outside of the connecting pipe, a shunt disc fixedly connected to the top end of the connecting pipe and a hose, and a water outlet pipe rotatably connected to the outside of the fixing seat. The irrigation device for agricultural fruit and vegetable planting has the advantages of self-balancing stable spraying, self-locking anti-shaking and adjustable frequency, and realizes the effects of stable and uniform, energy-saving irrigation suitable for multiple working conditions.

Description

Technical Field

[0001] This invention relates to the field of agricultural irrigation technology, and in particular to an irrigation device for growing fruits and vegetables. Background Technology

[0002] In the cultivation of fruits and vegetables, irrigation is a crucial step in ensuring normal crop growth and high yields. Currently, traditional agricultural irrigation methods mainly fall into two categories: manual water pipe irrigation and flood irrigation through excavated ditches. The former is labor-intensive, inefficient, and difficult to control in terms of spray uniformity, while the latter wastes water resources significantly and easily causes localized waterlogging. To address these shortcomings, some rotary linkage sprinkler irrigation devices have emerged on the market, using the reaction force of water flow to drive the sprinkler head to rotate and achieve large-area spraying. However, the lifting and guiding mechanisms of existing sprinklers mostly use linkage drives, which have large clearances and lack self-locking capabilities. When external disturbances such as wind or water pressure waves affect the sprinkler head, the linkage cannot provide sufficient radial restraint, making it difficult to suppress swaying.

[0003] To address the core issue of poor rotational stability, while some existing technologies attempt to improve rigidity by adding guide sleeves or thickening connecting rods, they still fail to fundamentally solve the technical challenge of automatic locking and anti-swaying under disturbed conditions, resulting in high resistance during low-pressure startup. Furthermore, the field operating environment often contains mud, sand, and debris, which can easily cause jamming at rotating joints such as bearing seats, further reducing equipment operational stability and lifespan. Therefore, an irrigation device for agricultural fruit and vegetable cultivation is proposed to solve the aforementioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies and reduce issues such as low-pressure swaying, sediment jamming, and poor adaptability to various operating conditions, this invention provides an irrigation device for agricultural fruit and vegetable cultivation. It features self-balancing and stable spraying, self-locking and anti-swaying, and adjustable frequency, achieving stable, uniform, and energy-saving irrigation that is adaptable to multiple operating conditions.

[0005] This invention provides an irrigation device for agricultural fruit and vegetable cultivation, employing the following technical solution: An irrigation device for agricultural fruit and vegetable planting includes a fixing component and a water delivery pipe disposed on the bottom side of the fixing component. The fixing component includes a fixing plate, a connecting pipe and a ground plug. The surface of the fixing component is provided with a spray structure for irrigation, a support structure disposed on the bottom side of the spray structure for stable support, and a reciprocating structure disposed outside the support structure and respectively linked with the spray structure. The spraying structure includes a bearing seat fixedly installed at the top of the connecting pipe and a spray pipe rotatably connected inside the bearing seat, a fixed seat fixedly connected to the outside of the connecting pipe, a diverter plate and a hose fixedly connected to the top of the connecting pipe, a water outlet pipe rotatably connected to the outside of the fixed seat, and a sliding sleeve sleeved on the outside of the spray pipe. The support structure includes a first hinge seat fixedly connected to the outside of the sliding sleeve and a second hinge seat fixedly connected to the outside of the water outlet pipe, a sleeve fixedly connected to the outside of the first hinge seat, a valve plate slidably connected to the inside of the sleeve, a moving rod fixedly connected to the surface of the valve plate, a spiral groove formed on the outside of the moving rod, a connecting plate fixedly connected to the outer surface of the top end of the sleeve, a pin fixedly connected to the outside of the connecting plate, and a limiting ring.

[0006] Furthermore, a conical cylinder is fixedly connected to the bottom end of the nozzle. The conical cylinder adopts a conical structure that is wider at the bottom and narrower at the top, and the inner diameter of the wide end of the conical cylinder matches the inner diameter of the connecting pipe to achieve stable water flow guidance.

[0007] Furthermore, the upper surface of the water outlet pipe is evenly provided with several sets of spray holes, the two ends of the hose are fixedly connected to the spray pipe and the diverter plate respectively, and the end of the water outlet pipe is fixedly connected to a gravity block to ensure the dynamic balance of the water outlet pipe during spraying operation by using gravity. A return spring is fixedly connected between the sliding sleeve and the fixed seat.

[0008] Furthermore, the sleeve is provided with an abutment spring, the two ends of which abut against the inner wall of the sleeve and the surface of the valve plate, respectively, for elastic buffering and resetting limit of the valve plate. The top end of the moving rod is rotatably connected to the bottom side of the second hinge seat.

[0009] Furthermore, the end of the pin away from the connecting plate extends and is embedded inside the spiral groove, the moving rod slides through the limiting ring, the limiting ring radially limits the moving rod, and the pin and the spiral groove cooperate to drive the valve plate and the moving rod to perform a combined rotational and lifting motion along the inside of the sleeve.

[0010] Furthermore, a first check valve is fixedly connected to the outer side of the sleeve, and an air blowing pipe is fixedly connected to the air outlet of the first check valve. The end of the air blowing pipe extends to the outer side of the bearing seat, and the rotating mating position of the bearing seat can be cleaned by blowing air through the airflow to avoid mud and sand from getting stuck and affecting the rotation.

[0011] Furthermore, the reciprocating structure includes a fixed frame, a piston cylinder, a piston rod, a contact ball, a preload spring, a second check valve, an air supply pipe, an air inlet pipe, a wave seat, a threaded sleeve, a threaded rod, and a hexagonal knob. The fixed frame is fixedly connected to the bottom side of the sliding sleeve, the piston cylinder is fixedly installed inside the fixed frame, and the piston rod slides through the inside of the piston cylinder.

[0012] Furthermore, a stop ball is fixedly connected to the bottom end of the piston rod, and the pre-tightening spring is sleeved on the outside of the piston rod with its two ends fixedly connected to the piston cylinder and the stop ball, respectively. A second check valve is fixedly connected to both sides of the piston cylinder. An air supply pipe is fixedly connected between one side of the second check valve and the sleeve, and an air inlet pipe is fixedly connected inside the other side of the second check valve. By reciprocating the intake and exhaust of air through the piston cylinder, air is supplied to the inside of the sleeve, driving the valve plate and the moving rod to rotate and rise stably.

[0013] Furthermore, a wave seat is provided on the bottom side of the abutting ball. The top surface of the wave seat has a wave-like structure and rolls against the bottom end of the abutting ball. The bottom end of the wave seat is rotatably connected to the top end of the threaded rod. The threaded rod is threadedly assembled inside the threaded sleeve. The threaded sleeve is fixedly installed on the top of the fixed plate.

[0014] Furthermore, a hexagonal knob is fixedly mounted on the outside of the threaded rod. By rotating the hexagonal knob, the threaded rod can be driven to rise and fall relative to the threaded sleeve, thereby adjusting the vertical height of the wave seat and changing the undulation stroke of the abutment ball. This allows for precise control of the pneumatic reciprocating frequency of the reciprocating structure, adapting to different irrigation conditions.

[0015] In summary, the present invention has at least one of the following beneficial technical effects: 1. This invention, through the linkage and cooperation of the spraying structure, gravity block, and return spring, relies on the counterweight of the gravity block to balance the water outlet pipe, and with the elastic reset effect of the return spring, can automatically adjust the spraying posture under water pressure fluctuations and low-pressure start-up conditions, effectively avoiding the problems of unstable low-pressure water outlet and unilateral load shaking, and greatly improving the uniformity and stability of fruit and vegetable irrigation.

[0016] 2. In this invention, a spiral groove is opened on the outside of the moving rod, and a pin is embedded in the groove to form a spiral transmission pair; the spiral helix angle of the spiral groove is smaller than the friction angle, and it automatically locks when starting under low pressure, in strong wind or water flow, reducing the radial sway of the moving rod and making it more resistant to strong wind and water flow.

[0017] 3. This invention utilizes a sleeve, a first check valve, and an air blowing pipe in a linked design. During operation, the airflow generated by the pneumatic linkage of the structure can continuously blow air to remove dust from the rotating position of the bearing seat. This can clean mud and debris in real time, effectively prevent mud and sand from getting stuck in the bearing seat, and extend its service life.

[0018] 4. In this invention, the sliding sleeve lifts and drives the fixed frame and piston cylinder to move up and down. The abutting ball at the bottom of the piston rod rolls and abuts against the wave seat, converting the undulating motion into the reciprocating suction and exhaust action of the piston cylinder. The gas supply pipe sends compressed gas into the sleeve, driving the valve plate and the moving rod to rotate and lift stably, realizing the passive conversion from mechanical motion to pneumatic drive.

[0019] 5. This invention allows for precise adjustment of the vertical height of the wave seat by rotating a hexagonal knob, thereby changing the undulating stroke of the contact ball and controlling the intake and exhaust frequency of the piston cylinder. This makes the pneumatic reciprocating frequency of the reciprocating structure adjustable, flexibly adapting to the irrigation needs of different water pressures and different crops. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the structure of the present invention; Figure 3 This is a schematic diagram of the spraying structure of the present invention; Figure 4 This is a cross-sectional view of the support structure and reciprocating structure of the present invention; Figure 5 This is a cross-sectional view of the support structure of the present invention; Figure 6 This is a cross-sectional view of the spraying structure of the present invention; Figure 7 This is a cross-sectional view of the reciprocating structure of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Fixing component; 11. Fixing plate; 12. Connecting pipe; 13. Ground insertion; 2. Water supply pipe; 3. Spraying structure; 31. Bearing seat; 32. Spray pipe; 33. Conical cylinder; 34. Fixing base; 35. Diverter plate; 36. Water outlet pipe; 37. Gravity block; 38. Spray hole; 39. Hose; 310. Sliding sleeve; 311. Return spring; 4. Support structure; 41. First hinge seat; 42. Second hinge seat; 43. Sleeve; 44. Valve plate; 45. 46. ​​Moving rod; 47. Spiral groove; 48. Abutment spring; 49. Connecting plate; 40. Pin; 410. Limiting ring; 411. First check valve; 412. Air blowing pipe; 5. Reciprocating structure; 51. Fixed frame; 52. Piston cylinder; 53. Piston rod; 54. Abutment ball; 55. Preload spring; 56. Second check valve; 57. Air supply pipe; 58. Air inlet pipe; 59. Wave seat; 510. Threaded sleeve; 511. Threaded rod; 512. Hexagonal knob. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1 to 7 The present invention will be described in further detail below.

[0023] This invention discloses an irrigation device for agricultural fruit and vegetable cultivation. Please refer to [link / reference]. Figure 1An irrigation device for agricultural fruit and vegetable planting includes a fixing component 1 and a water supply pipe 2 disposed on the bottom side of the fixing component 1. The fixing component 1 includes a fixing plate 11, a connecting pipe 12 and a ground plug 13. The surface of the fixing component 1 is provided with a spraying structure 3 for irrigation, a support structure 4 disposed on the bottom side of the spraying structure 3 for stable support, and a reciprocating structure 5 disposed outside the support structure 4 and respectively linked with the spraying structure 3. To achieve dynamic balance during the rotating spraying process and improve the uniformity of large-area irrigation, the spraying structure 3 includes a bearing seat 31 fixedly installed at the top of the connecting pipe 12 and a spray pipe 32 rotatably connected inside the bearing seat 31, a fixed base 34 fixedly connected outside the connecting pipe 12, a diverter plate 35 and a hose 39 fixedly connected to the top of the connecting pipe 12, a water outlet pipe 36 rotatably connected outside the fixed base 34, a gravity block 37 fixedly connected to the end of the water outlet pipe 36, a sliding sleeve 310 sleeved outside the spray pipe 32, and a return spring 311 fixedly connected between the sliding sleeve 310 and the fixed base 34.

[0024] Specifically, a conical cylinder 33 is fixedly connected to the bottom end of the nozzle 32. The conical cylinder 33 adopts a conical structure that is wider at the bottom and narrower at the top, and the inner diameter of the wide end of the conical cylinder 33 matches the inner diameter of the connecting pipe 12 to achieve stable water flow guidance. Through the conical flow guiding structure of the conical cylinder 33, the water flow transported by the connecting pipe 12 can be buffered and stabilized, avoiding the problems of high-pressure water flow directly impacting turbulent flow and low-pressure water flow being unevenly distributed, effectively improving the stability of water flow transportation and ensuring the uniformity of water output.

[0025] It should be noted that several sets of spray holes 38 are evenly distributed on the upper surface of the water outlet pipe 36. The two ends of the flexible hose 39 are fixedly connected to the spray pipe 32 and the diverter plate 35, respectively. The gravity block 37 is assembled at the outer end of the water outlet pipe 36, using gravity to ensure the dynamic balance of the water outlet pipe 36 during spraying. Relying on the counterweight of the gravity block 37 and the even water distribution from the multiple sets of spray holes 38, the centrifugal deviation and water flow imbalance during rotating spraying can be effectively offset, so that the water outlet pipe 36 always maintains a horizontal balance, greatly improving the uniformity of large-area irrigation of fruits and vegetables.

[0026] To reduce the effects of radial wobble and jitter during operation, please refer to Figures 2 to 5In this embodiment, the support structure 4 includes a first hinge seat 41 fixedly connected to the outside of the sliding sleeve 310 and a second hinge seat 42 fixedly connected to the outside of the water outlet pipe 36, a sleeve 43 fixedly connected to the outside of the first hinge seat 41, a valve plate 44 slidably connected to the inside of the sleeve 43, a moving rod 45 fixedly connected to the surface of the valve plate 44, a spiral groove 46 formed on the outside of the moving rod 45, a connecting plate 48 fixedly connected to the outer surface of the top end of the sleeve 43, a pin 49 fixedly connected to the outside of the connecting plate 48, and a limiting ring 410. By adopting the trajectory constraint structure of the spiral groove 46 and the pin 49, and in conjunction with the radial limiting of the limiting ring 410, the radial shaking and vibration during equipment operation are reduced.

[0027] Specifically, a retaining spring 47 is installed inside the sleeve 43. The two ends of the retaining spring 47 abut against the inner wall of the sleeve 43 and the surface of the valve plate 44, respectively, for elastic buffering and resetting limiting of the valve plate 44. The top end of the moving rod 45 is rotatably connected to the bottom side of the second hinge seat 42. Through the elastic retaining and resetting action of the retaining spring 47, the lifting and lowering movement of the valve plate 44 can be buffered and damped, avoiding hard impact wear, while ensuring accurate resetting of the valve plate 44 after its movement, thus improving the stability and service life of the reciprocating motion of the structure.

[0028] It should be noted that the end of the pin 49 away from the connecting plate 48 extends and is embedded in the spiral groove 46. The moving rod 45 slides through the limiting ring 410, which radially limits the moving rod 45. The pin 49 and the spiral groove 46 cooperate to drive the valve plate 44 and the moving rod 45 to perform a combined rotational and lifting motion along the inside of the sleeve 43.

[0029] It is worth mentioning that a first check valve 411 is fixedly connected to the outer side of the sleeve 43, and an air blowing pipe 412 is fixedly connected to the air outlet of the first check valve 411. The end of the air blowing pipe 412 extends to the outer side of the bearing seat 31, and can blow air to clean the rotating fit position of the bearing seat 31 by guiding airflow, so as to avoid mud and sand from getting stuck and affecting rotation. By utilizing the pneumatic cleaning structure of the first check valve 411 and the air blowing pipe 412, air can be blown to remove dust from the rotating fit clearance of the bearing seat 31 in real time, preventing mud, sand and scale from accumulating and getting stuck in the field, ensuring the smooth rotation of the nozzle 32 for a long time, and reducing the probability of failure.

[0030] In addition, the valve plate 44 is rotatably and vertically disposed inside the sleeve 43 through the cooperation of the spiral groove 46 and the pin 49. The spiral helix angle of the spiral groove 46 is smaller than the friction angle between it and the pin 49 to form a self-locking mechanism, which is used to limit the radial sway of the moving rod 45 under low-pressure start-up, strong wind or water flow off-center load conditions.

[0031] To achieve the effect of converting the lifting motion of the sliding sleeve 310 into pneumatic driving force and providing continuous power to the support structure 4, please refer to... Figure 4 and Figure 7 In this embodiment, the reciprocating structure 5 includes a fixed frame 51, a piston cylinder 52, a piston rod 53, an abutment ball 54, a preload spring 55, a second check valve 56, an air supply pipe 57, an air inlet pipe 58, a wave seat 59, a threaded sleeve 510, a threaded rod 511, and a hexagonal knob 512. The fixed frame 51 is fixedly connected to the bottom side of the sliding sleeve 310, the piston cylinder 52 is fixedly installed inside the fixed frame 51, and the piston rod 53 slides through the inside of the piston cylinder 52.

[0032] Specifically, a stop ball 54 is fixedly connected to the bottom end of the piston rod 53. A preload spring 55 is sleeved on the outside of the piston rod 53 and its two ends are fixedly connected to the piston cylinder 52 and the stop ball 54, respectively. A second check valve 56 is fixedly connected to both sides of the piston cylinder 52. An air supply pipe 57 is fixedly connected between one side of the second check valve 56 and the sleeve 43, and an air inlet pipe 58 is fixedly connected inside the other side of the second check valve 56. The piston cylinder 52 reciprocates to draw in and exhaust air, supplying air to the inside of the sleeve 43, and driving the valve plate 44 and the moving rod 45 to rotate and rise stably. The piston cylinder 52, the second check valve 56 and the preload spring 55 work together to achieve stable reciprocating air intake and exhaust, providing continuous pneumatic power to the support structure 4, realizing mechanical linkage and automated control, and ensuring smooth and synchronous action.

[0033] It should be noted that a wave seat 59 is provided on the bottom side of the abutment ball 54. The top surface of the wave seat 59 has a wave-like undulating structure and rolls against the bottom end of the abutment ball 54. The bottom end of the wave seat 59 is rotatably connected to the top end of the threaded rod 511. The threaded rod 511 is threaded into the inside of the threaded sleeve 510, and the threaded sleeve 510 is fixedly installed on the top of the fixing plate 11. By adopting the wave-like undulating structure of the wave seat 59 and the rolling abutment transmission with the abutment ball 54, the frictional resistance is small, the operating noise is low, and it is not easy to jam. Combined with the threaded lifting structure, the stroke can be adjusted to adapt to different irrigation frequency requirements, and the structure has extremely strong adaptability.

[0034] For precise adjustment of irrigation reciprocating frequency and spray amplitude, please refer to [link / reference]. Figure 7 In this embodiment, a hexagonal knob 512 is externally fixed to the threaded rod 511. By rotating the hexagonal knob 512, the threaded rod 511 can be driven to rise and fall relative to the threaded sleeve 510, adjusting the vertical height of the wave seat 59 and changing the undulating stroke of the abutment ball 54. This allows for precise control of the pneumatic reciprocating frequency of the reciprocating structure 5, adapting to different irrigation conditions. Through the threaded fine-tuning structure of the hexagonal knob 512, threaded rod 511, and threaded sleeve 510, the irrigation reciprocating frequency and spraying amplitude can be precisely adjusted, allowing for flexible adjustment based on the type of fruit and vegetable, planting spacing, and soil moisture.

[0035] Combined with appendix Figures 1 to 7 The working principle of the above embodiments is as follows: The device is positioned by inserting the ground plug 13 of the fixing component 1 into the field. During operation, external water is delivered to the connecting pipe 12 through the water supply pipe 2. The water flows upward through the connecting pipe 12 to the conical cylinder 33. The conical cylinder 33 adopts a conical structure that is wider at the bottom and narrower at the top. The inner diameter of its wide end matches the inner diameter of the connecting pipe 12, which buffers and stabilizes the water flow to avoid the problems of turbulence caused by high-pressure water flow and uneven distribution of low-pressure water flow. After stabilization, the water flow enters the spray pipe 32 through the conical cylinder 33, and is then divided by the diverter plate 35 and delivered to each water outlet pipe 36 through the hose 39. Finally, it is sprayed outward through the spray hole 38. When water is ejected from the nozzle 38, it generates a reverse reaction force, driving the water outlet pipe 36 to rotate around the fixed base 34; the bearing seat 31 rotates with the nozzle 32, allowing the water outlet pipe 36 to rotate freely for spraying; at the same time, the gravity block 37 fixed to the end of the water outlet pipe 36 uses gravity to counteract the centrifugal deviation and water flow imbalance generated during rotational spraying, keeping the water outlet pipe 36 in a horizontal and balanced state; the flexible hose 39 connects the nozzle 32 and the diverter plate 35, providing flexible water supply for the rotation of the water outlet pipe 36; When the water outlet pipe 36 rotates and sprays, the second hinge seat 42 connected to it drives the moving rod 45 to move. The moving rod 45 is connected to the sliding sleeve 310 through the first hinge seat 41. The sliding sleeve 310 is sleeved on the outside of the spray pipe 32 and slides back and forth along the axial direction of the spray pipe 32 under the drive of the moving rod 45. The return spring 311 is fixedly connected between the sliding sleeve 310 and the fixed seat 34. After the sliding sleeve 310 slides, it provides elastic return force, so that the sliding sleeve 310 automatically returns to its position and stores energy for the next reciprocating motion. The movable rod 45 has a spiral groove 46 on its outside. The pin 49 is fixed to the outside of the connecting plate 48 and one end extends into the spiral groove 46. When the movable rod 45 moves up and down, the pin 49 slides along the spiral groove 46, forcing the movable rod 45 and the valve plate 44 to perform a combined rotation and lifting motion inside the sleeve 43. The limiting ring 410 radially limits the movable rod 45 to reduce radial sway during operation. At the same time, the helix angle of the spiral groove 46 is smaller than the friction angle between it and the pin 49, forming a self-locking mechanism. Under low-pressure start-up, strong wind or water flow off-center load conditions, it automatically limits the radial sway of the movable rod 45, replacing the traditional linkage mechanism. The sleeve 43 is equipped with an abutment spring 47, whose two ends abut against the inner wall of the sleeve 43 and the surface of the valve plate 44, respectively. When the valve plate 44 moves up and down with the moving rod 45, the abutment spring 47 provides elastic buffering for the valve plate 44 to avoid hard collision and wear. At the same time, it provides precise reset force after the valve plate 44 has completed its movement, thereby improving the stability and service life of the reciprocating motion. When the sliding sleeve 310 rises and falls, it drives the fixed frame 51, which is fixedly connected to its bottom side, to move synchronously. A piston cylinder 52 is fixedly installed inside the fixed frame 51, and the piston rod 53 slides through the piston cylinder 52. When the fixed frame 51 moves up and down, the abutting ball 54 at the bottom of the piston rod 53 rolls and abuts against the wave-like structure on the top surface of the wave seat 59, causing the piston rod 53 to reciprocate and extend within the piston cylinder 52. The preload spring 55 is sleeved on the outside of the piston rod 53, and its two ends are fixedly connected to the piston cylinder 52 and the abutting ball 54, respectively, to provide elastic preload force. The piston cylinder 52 is fixedly connected to the left and right sides with second check valves 56; one side of the second check valve 56 is fixedly connected to the sleeve 43 with an air supply pipe 57, and the other side of the second check valve 56 is fixedly connected to an air inlet pipe 58; when the piston rod 53 reciprocates, the piston cylinder 52 draws in air through the air inlet pipe 58 and then exhausts air into the sleeve 43 through the air supply pipe 57, continuously supplying air to the sleeve 43, driving the valve plate 44 and the moving rod 45 to rotate and rise stably, realizing mechanical linkage automatic control, and the action is continuous and synchronous; A first check valve 411 is fixedly connected to the outer side of the sleeve 43, and an air blowing pipe 412 is fixedly connected to its air outlet end. The end of the air blowing pipe 412 extends to the outer side of the bearing seat 31. When the air pressure inside the sleeve 43 changes, the first check valve 411 unidirectionally guides the airflow, which blows air through the air blowing pipe 412 to clean the rotating mating position of the bearing seat 31 to prevent the accumulation of mud, sand and scale in the field and ensures that the nozzle 32 rotates smoothly for a long time. The bottom end of the wave seat 59 is rotatably connected to the top end of the threaded rod 511. The threaded rod 511 is threaded into the inside of the threaded sleeve 510, and the threaded sleeve 510 is fixedly installed on the top of the fixed plate 11. A hexagonal knob 512 is fixedly installed on the outside of the threaded rod 511. When the hexagonal knob 512 is rotated, the threaded rod 511 rises and falls relative to the threaded sleeve 510, adjusting the vertical height of the wave seat 59, changing the undulating stroke of the abutment ball 54, thereby precisely controlling the suction and exhaust frequency of the piston cylinder 52, and finally adjusting the irrigation reciprocating frequency and spraying amplitude to adapt to different fruit and vegetable varieties, planting spacing and soil moisture conditions.

[0036] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An irrigation device for agricultural fruit and vegetable cultivation, comprising a fixing component (1) and a water supply pipe (2) disposed on the bottom side of the fixing component (1), characterized in that: The fixing component (1) includes a fixing plate (11), a connecting pipe (12) and a ground plug (13). The surface of the fixing component (1) is provided with a spraying structure (3) for irrigation, a support structure (4) provided on the bottom side of the spraying structure (3) for stable support, and a reciprocating structure (5) provided on the outside of the support structure (4) and respectively linked with the spraying structure (3). The spraying structure (3) includes a bearing seat (31) fixedly installed at the top of the connecting pipe (12) and a spray pipe (32) rotatably connected inside the bearing seat (31), a fixed seat (34) fixedly connected to the outside of the connecting pipe (12), a diverter plate (35) and a hose (39) fixedly connected to the top of the connecting pipe (12), a water outlet pipe (36) rotatably connected to the outside of the fixed seat (34), and a sliding sleeve (310) sleeved on the outside of the spray pipe (32). The support structure (4) includes a first hinge seat (41) fixedly connected to the outside of the sliding sleeve (310) and a second hinge seat (42) fixedly connected to the outside of the water outlet pipe (36), a sleeve (43) fixedly connected to the outside of the first hinge seat (41), a valve plate (44) slidably connected to the inside of the sleeve (43), a moving rod (45) fixedly connected to the surface of the valve plate (44), a spiral groove (46) opened on the outside of the moving rod (45), a connecting plate (48) fixedly connected to the outer surface of the top end of the sleeve (43), a pin (49) fixedly connected to the outside of the connecting plate (48), and a limiting ring (410).

2. The irrigation device for agricultural fruit and vegetable cultivation according to claim 1, characterized in that: The bottom end of the nozzle (32) is fixedly connected to a conical cylinder (33). The conical cylinder (33) adopts a conical structure that is wider at the bottom and narrower at the top. The inner diameter of the wide end of the conical cylinder (33) matches the inner diameter of the connecting pipe (12) to achieve stable water flow guidance.

3. The irrigation device for agricultural fruit and vegetable cultivation according to claim 1, characterized in that: The upper surface of the water outlet pipe (36) is evenly provided with several sets of spray holes (38). The two ends of the hose (39) are fixedly connected to the spray pipe (32) and the diverter plate (35) respectively. The end of the water outlet pipe (36) is fixedly connected to a gravity block (37) to ensure the dynamic balance of the water outlet pipe (36) during spraying operation by using gravity. A return spring (311) is fixedly connected between the sliding sleeve (310) and the fixed seat (34).

4. The irrigation device for agricultural fruit and vegetable cultivation according to claim 1, characterized in that: The sleeve (43) is provided with an abutment spring (47) inside. The two ends of the abutment spring (47) abut against the inner wall of the sleeve (43) and the surface of the valve plate (44) respectively, and are used to elastically buffer and reset the valve plate (44). The top end of the moving rod (45) is rotatably connected to the bottom side of the second hinge seat (42).

5. An irrigation device for agricultural fruit and vegetable cultivation according to claim 1, characterized in that: The end of the pin (49) away from the connecting plate (48) extends and is embedded in the spiral groove (46). The moving rod (45) slides through the limiting ring (410). The limiting ring (410) radially limits the moving rod (45). The pin (49) and the spiral groove (46) cooperate to drive the valve plate (44) and the moving rod (45) to perform a combined rotational and lifting motion along the inside of the sleeve (43).

6. The irrigation device for agricultural fruit and vegetable cultivation according to claim 1, characterized in that: The outer side of the sleeve (43) is fixedly connected to a first check valve (411), and the air outlet of the first check valve (411) is fixedly connected to an air blowing pipe (412). The end of the air blowing pipe (412) extends to the outer side of the bearing seat (31), and the bearing seat (31) can be cleaned by blowing air to remove dust by guiding airflow, so as to avoid mud and sand from getting stuck and affecting rotation.

7. The irrigation device for agricultural fruit and vegetable cultivation according to claim 1, characterized in that: The reciprocating structure (5) includes a fixed frame (51), a piston cylinder (52), a piston rod (53), an abutment ball (54), a preload spring (55), a second check valve (56), an air supply pipe (57), an air inlet pipe (58), a wave seat (59), a threaded sleeve (510), a threaded rod (511), and a hexagonal knob (512). The fixed frame (51) is fixedly connected to the bottom side of the sliding sleeve (310), the piston cylinder (52) is fixedly installed inside the fixed frame (51), and the piston rod (53) slides through the inside of the piston cylinder (52).

8. An irrigation device for agricultural fruit and vegetable cultivation according to claim 7, characterized in that: The piston rod (53) is fixedly connected to the bottom end of the piston rod (53) and the pre-tightening spring (55) is sleeved on the outside of the piston rod (53) and its two ends are fixedly connected to the piston cylinder (52) and the piston ball (54) respectively. The piston cylinder (52) is fixedly connected to the left and right sides of the piston cylinder (52) and the sleeve (43) respectively. The second check valve (56) on one side is fixedly connected to the sleeve (43) and the second check valve (56) on the other side is fixedly connected to the air inlet pipe (58). The piston cylinder (52) reciprocates to draw in and exhaust air, supplying air to the inside of the sleeve (43) and driving the valve plate (44) and the moving rod (45) to rotate and rise stably.

9. An irrigation device for agricultural fruit and vegetable cultivation according to claim 7, characterized in that: The bottom side of the abutting ball (54) is provided with a wave seat (59). The top surface of the wave seat (59) has a wave-like structure and rolls against the bottom end of the abutting ball (54). The bottom end of the wave seat (59) is rotatably connected to the top end of the threaded rod (511). The threaded rod (511) is threadedly fitted inside the threaded sleeve (510). The threaded sleeve (510) is fixedly installed on the top of the fixing plate (11).

10. An irrigation device for agricultural fruit and vegetable cultivation according to claim 9, characterized in that: The threaded rod (511) is externally fixed with a hexagonal knob (512). By rotating the hexagonal knob (512), the threaded rod (511) can be driven to rise and fall relative to the threaded sleeve (510), thereby adjusting the vertical height of the wave seat (59) and changing the undulating stroke of the abutment ball (54). This allows for precise control of the pneumatic reciprocating frequency of the reciprocating structure (5) to adapt to different irrigation conditions.

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