AU2022432101A1

AU2022432101A1 - Sprinkling irrigation machine for seedling cultivation and maintenance

Info

Publication number: AU2022432101A1
Application number: AU2022432101A
Authority: AU
Inventors: Ran HOU; Shi QIU; Zhipeng QIU; Jinxiang Zhang
Original assignee: Jiangsu Huayuan Water Saving Co Ltd
Current assignee: Jiangsu Huayuan Water-Saving Co Ltd
Priority date: 2022-03-17
Filing date: 2022-04-15
Publication date: 2023-10-05
Also published as: CN114586649B; CN114586649A; WO2023173526A1

Abstract

The present disclosure relates to the technical field of the agricultural production, and discloses a sprinkling irrigation machine for seedling cultivation and maintenance. The limit pipe is not provided with a through hole, so that the water that enters the inner cavity of the limit pipe and is located below the flow hole is in a state where the water cannot flow. However, the water in the cavity that enters the limit pipe and is located above the adjustment device enters the interior of the sprinkling irrigation device through a rectangular through hole, and is sprinkled out from one end of the nozzle for sprinkling irrigation, impacting the directional plate and causing the sprinkled water to change direction under the obstruction of the directional plate; at the same time, the directional plate rotates under the action of impact force, so that the spring has an elastic deformation, and then drives the sprinkling irrigation device to rotate in the same direction, such that the directional plate is in contact with the water sprinkled by the nozzle, thus repeating the above steps to ensure that the sprinkling irrigation machine can fully sprinkle the circular range with its own radius, avoiding the problem of dead zone caused by the inability to adjust the sprinkling angle of traditional sprinkling irrigation machines, and improving the practicality of the device.

Description

SPRINKLING IRRIGATION MACHINE FOR SEEDLING CULTIVATION AND MAINTENANCE

TECHNICAL FIELD 0001. The present disclosure relates to the technical field of the agricultural production, and specifically to a sprinkling irrigation machine for seedling cultivation and maintenance.

BACKGROUND 0002. With the development of society and the progress of science and technology, all walks of life have begun to use high-tech automation equipment to replace manual, and a variety of modem production tools are also adopted in agriculture. In the irrigation of farmland, people often use an irrigation machine to irrigate, which greatly increases the productions of agricultural and animal husbandry in arid areas and semi-arid areas. The equipment is suitable for irrigating various crops such as cereals, vegetables, melons and grass. The existing irrigation machine is composed of water pipes, irrigation nozzles and swinging pieces. The water is injected into the water pipes through the water pump and is sprinkled from the irrigation nozzles to impact the swinging pieces, and the sprinkling directions of the water flow are constantly changed during the reciprocating process of the swinging pieces, thereby improving the irrigation range, and having the advantages such as simple structure, strong practicability and low cost, which is the most widely used sprinkling irrigation machine for seedling cultivation and maintenance. 0003. Although the existing irrigation machine has the above advantages, it still has certain limitations during the actual use. For example, the nozzle of the traditional irrigation machine is fixedly set, which leads to a relatively fixed coverage and a dead zone of irrigation. Moreover, when the water pressure increases and the water flow increases, the coverage does not change much, which is prone to the problem of over-irrigation in some areas. Therefore, the present disclosure provides a sprinkling irrigation machine for seedling cultivation and maintenance to solve the above-mentioned problems.

SUMMARY 0004. In view of the advantages of the sprinkling irrigation machine for seedling cultivation and maintenance during the using process proposed in the background technology, the present disclosure provides a sprinkling irrigation machine for seedling cultivation and maintenance, which has the advantage of adjustable coverage and solves the problems mentioned in the background technology. 0005. The present disclosure provides the following technical solutions. The sprinkling irrigation machine for seedling cultivation and maintenance, comprises a water supply pipe. a top portion of the water supply pipe is provided with a limit hole, a limit device is fixedly arranged at a bottom portion of the limit hole and inside the water supply pipe, a limit piece is fixedly arranged on an inner wall of the limit hole, an inner part of the limit hole is movably sleeved with a sprinkling irrigation device through the limit piece, a connecting rod is fixedly arranged at a bottom portion of the sprinkling irrigation device, a process stopping device is fixedly arranged at a bottom portion of the connecting rod, a position on an outer surface of the sprinkling irrigation device where is located proximity to a bottom portion is fixedly sleeved with a bearing, a directional sleeve is fixedly sleeved with an outer surface of the bearing, a directional plate is fixedly arranged on a top portion of the directional sleeve, the directional plate corresponds to the sprinkling irrigation device, the directional sleeve is connected to the sprinkling irrigation device through a spring, a limit sleeve is fixedly arranged on a top portion of the water supply pipe where is located on an outer side of the directional sleeve, the limit sleeve is sleeved with the directional sleeve. 0006. Preferably, the limit device includes a limit pipe, a bottom end of the limit pipe is set as a tip end, a position on an outer surface of the limit pipe where is located proximity to a top portion is provided with a flow hole, and a telescopic machine is fixedly arranged at a bottom portion of an inner cavity of the limit pipe, an adjustment device is fixedly arranged at one end of an output shaft of the telescopic machine, a position on the outer surface of the limit pipe where is located below the flow hole is provided with a rectangular hole, and a damping device is movably arranged inside the rectangular hole, the adjustment device is matched with the damping device, a connecting block is fixedly arranged at a position on the outer surface of the limit pipe where is located below the damping device, and the connecting block is fixedly connected to an inner wall of the water supply pipe. 0007. Preferably, the adjustment device includes an adjusting plate, the adjusting plate is fixedly arranged at one end of the output shaft of the telescopic machine, a bottom portion of the adjusting plate is provided with a flow hole II, an adjusting block is fixedly arranged on the outer surface of the adjusting plate, a position of a top portion of the adjusting block where is located proximity to one end is provided with a sleeve hole, the sleeve hole is movably sleeved with the damping device. 0008. Preferably, the damping device includes a damping block, the damping block is matched with the process stopping device, the damping block is matched with a rectangular hole opened at the outer surface of the limit pipe, and a process stopping plate is fixedly arranged on one side of the damping block and a rotating shaft is fixedly arranged at a bottom portion of the damping block, the rotating shaft is movably sleeved with the limit pipe, the rotating shaft is movably sleeved with the sleeve hole, and a reset spring is fixedly arranged at a position of the bottom portion of the damping block where is located outside the rotating shaft, and a bottom portion of the reset spring is fixedly connected to the top portion of the adjusting block. 0009. Preferably, the sprinkling irrigation device includes a liquid diversion pipe, a mounting plate is fixedly arranged at a bottom portion of an outer surface of the liquid diversion pipe, the mounting plate is in contact with the bearing, a limit ring is fixedly arranged at a bottom portion of the liquid diversion pipe, the limit ring is movably sleeved with the limit hole, a top portion of the limit ring is provided with a rectangular through hole, the connecting rod is fixedly arranged at a bottom portion of the limit ring, a spring seat is fixedly arranged at a top portion of the liquid diversion pipe, a nozzle is fixedly arranged at a top portion of the spring seat, one end of the nozzle for sprinkling irrigation corresponds to the directional plate. 0010. Preferably, the rectangular through hole has an oblique slot. 0011. Preferably, the process stopping device includes a baffle board, the baffle board is fixed connected to a bottom portion of the spring seat, a position of a top portion of the baffle board where is located outside the spring seat is provided with a flow hole III, a locked plate is fixedly arranged at an outer surface of the baffle board, and the locked plate is matched with the damping block. 0012. The beneficial effects of the present disclosure are as follows. 0013. 1. In the present disclosure, the position on the outer surface of the limit pipe where is located below the flow hole is provided with a rectangular hole, and a damping device is movably arranged inside the rectangular hole, such that during the operation of the device, water enters the interior of the water supply pipe through pressure from the bottom portion of the water supply pipe, and enters the interior of the limit pipe through the flow hole. The limit pipe is not provided with a through hole, so that the water that enters the inner cavity of the limit pipe and is located below the flow hole is in a state where the water cannot flow; however, the water in the cavity that enters the limit pipe and is located above the adjustment device enters the interior of the sprinkling irrigation device through a rectangular through hole, and is sprinkled out from one end of the nozzle for sprinkling irrigation, impacting the directional plate and causing the sprinkled water to change direction under the obstruction of the directional plate, at the same time, the directional plate rotates under the action of impact force, so that the spring connecting the directional sleeve to the sprinkling irrigation device has an elastic deformation, and then drives the sprinkling irrigation device to rotate in the same direction; due to the matching of the locked plate and the damping block, the sprinkling irrigation device cannot be reset after rotation, resulting in a change in the sprinkling irrigation direction of the nozzle, whereas the spring connecting the directional sleeve and the sprinkling irrigation device will drive the directional sleeve and the directional plate to reset after resetting, such that the directional plate is in contact with the water sprinkled by the nozzle, thus repeating the above steps to ensure that the angles of the sprinkling irrigation can be continuously adjusted by the device and that the sprinkling irrigation machine can fully sprinkle the circular range with its own radius, avoiding the problem of dead zone caused by the inability to adjust the sprinkling angle of traditional sprinkling irrigation machines, and improving the practicality of the device. 0014. 2. In the present disclosure, the bottom portion of the damping block is fixed with a rotating shaft and the limit pipe is not provided with the through hole, such that the water that enters the inner cavity of the limit pipe and is located below the flow hole is in a state where the water cannot flow, the water on one side of the damping device where is located outside the limit pipe is in a state where the water can flow, and the water on the other side of the damping device where is located inside the limit pipe is in a state where the water cannot flow, therefore the damping device is subjected to the external force, and the damping block rotates with the axis of the reset spring as the rotation center under this force, thereby reducing the volume of the damping block extending into the limit pipe. When the device is in a high pressure water supply and the water flow speed is high, and the damping block is subjected to a greater force, resulting in a smaller volume of the damping block extending into the limit pipe. At this time, the contact range between the locked plate and the damping block during the rotation of the sprinkling irrigation device is reduced, which reduces the resistance during the rotation process of the process stopping device and increases the rotation angle of the sprinkling irrigation device, thereby increasing the angle of a single swing under the premise of ensuring a faster water supply rate of the device, improving the coverage of a single sprinkling irrigation in this case, avoiding the problem of excessive irrigation caused by the traditional equipment having a large water supply rate but an unchanged coverage, and improving the irrigation stability of the device. 0015. 3. In the present disclosure, the sleeve hole is movably sleeved with the damping device, so that the device is capable of adjusting the height of the adjustment device through the telescopic machine. When it is necessary to reduce the coverage of the single sprinkling irrigation, the adjustment device can be lifted by the telescopic machine, so that the reset spring is in a compressed state, at this time, the pitch of the reset spring is shortened under the action of the axial force, resulting in the partial consumption of its elastic potential energy, which weakens the circumferential deformation ability of the reset spring, so that the rotation angle of the damping block is reduced under the same circumstance, so that the resistance on the locked plate from the damping block is increased during the rotation process of the process stopping device, and so that the rotation angle of the sprinkling irrigation device is reduced during the single sprinkling irrigation action, thereby reducing the coverage of the single sprinkling irrigation. When it is necessary to improve the coverage of the single sprinkling irrigation, the adjustment device can be reset driven by the telescopic machine, which can increase the coverage of the single sprinkling irrigation and further improve the practicability of the device. 0016. 4. In the present disclosure, the rectangular through hole is an oblique slot, which generates the circumferential force when the water path passes through the rectangular through hole, thereby balancing the reverse force formed by the end of the nozzle for sprinkling irrigation when sprinkling water, avoiding the problem that the sprinkling irrigation device cannot rotate, and improving the stability of the device.

BRIEF DESCRIPTION OF THE DRAWINGS 0017. FIG. 1 illustrates a structural schematic diagram of the present disclosure. 0018. FIG. 2 illustrates a top view structural schematic diagram of the present disclosure. 0019. FIG. 3 illustrates an A-direction cross-section in FIG. 2 of the present disclosure. 0020. FIG. 4 illustrates a structural schematic diagram of the limit device in the present disclosure. 0021. FIG. 5 illustrates a forward view structural schematic diagram of the limit device in the present disclosure. 0022. FIG. 6 illustrates a B-direction cross-section in FIG. 5 of the present disclosure. 0023. FIG. 7 illustrates a C-direction cross-section in FIG. 6 of the present disclosure. 0024. FIG. 8 illustrates a structural schematic diagram of the adjustment device in the present disclosure. 0025. FIG. 9 illustrates a structural schematic diagram of the damping device in the present disclosure. 0026. FIG. 10 illustrates a structural schematic diagram of the sprinkling irrigation device in the present disclosure. 0027. FIG. 11 illustrates a top view structural schematic diagram of the sprinkling irrigation device in the present disclosure. 0028. FIG. 12 illustrates a D-direction cross-section in FIG. 11 of the present disclosure. 0029. FIG. 13 illustrates an E-direction cross-section in FIG. 12 of the present disclosure. 0030. FIG. 14 illustrates a structural schematic diagram of the process stopping device in the present disclosure. 0031. In the drawings: 1. Water supply pipe; 2. Limit hole; 3. Limit device; 31. Limit pipe; 32. Flow hole; 33. Telescopic machine; 34. Adjustment device; 341. Adjusting plate; 342. Flow holeII; 343. Adjusting block; 344. Sleeve hole; 35. Damping device; 351. Damping block; 352. Process stopping plate; 353. Rotating shaft; 354. Reset spring; 36. Connecting block; 4. Limit piece; 5. Sprinkling irrigation device; 51. Liquid diversion pipe; 52. Mounting plate; 53. Limit ring; 54. Rectangular through hole; 55. Spring seat; 56. Nozzle; 6. Connecting rod; 7. Process stopping device; 71. Baffle board; 72. Flow holeIl; 73. Locked plate; 8. Bearing; 9. Directional sleeve; 10. Directional plate; 11. Limit sleeve.

DETAILED DESCRIPTION OF THE EMBODIMENTS 0032. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. It will be apparent that the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative efforts shall fall within the protection scope of the present disclosure. 0033. As illustrated in FIGS. 1 to 3, the sprinkling irrigation machine for seedling cultivation and maintenance comprises a water supply pipe 1. A top portion of the water supply pipe 1 is provided with a limit hole 2, a limit device 3 is fixedly arranged at a bottom portion of the limit hole 2 and inside the water supply pipe 1, a limit piece 4 is fixedly arranged on an inner wall of the limit hole 2, an inner part of the limit hole 2 is movably sleeved with a sprinkling irrigation device 5 through the limit piece 4, a connecting rod 6 is fixedly arranged at a bottom portion of the sprinkling irrigation device 5, a process stopping device 7 is fixedly arranged at a bottom portion of the connecting rod 6, a position on an outer surface of the sprinkling irrigation device 5 where is located proximity to a bottom portion is fixedly sleeved with a bearing 8, a directional sleeve 9 is fixedly sleeved with an outer surface of the bearing 8, a directional plate 10 is fixedly arranged on a top portion of the directional sleeve 9, the directional plate 10 corresponds to the sprinkling irrigation device 5, the directional sleeve 9 is connected to the sprinkling irrigation device 5 through a spring, a limit sleeve 11 is fixedly arranged on a top portion of the water supply pipe 1 where is located on an outer side of the directional sleeve 9, the limit sleeve 11 is movably sleeved with the directional sleeve 9. 0034. As illustrated in FIGS. 4 to 7, the limit device 3 includes a limit pipe 31, a bottom end of the limit pipe 31 is set as a tip end, a position on an outer surface of the limit pipe 31 where is located proximity to the top portion is provided with a flow hole I 32, and a telescopic machine 33 is fixedly arranged at a bottom portion of an inner cavity of the limit pipe 31, an adjustment device 34 is fixedly arranged at one end of an output shaft of the telescopic machine 33, the position on the outer surface of the limit pipe 31 where is located below the flow hole I 32 is provided with a rectangular hole, and a damping device 35 is movably arranged inside the rectangular hole, such that during the operation of the device, water enters the interior of the water supply pipe 1 through pressure from the bottom portion of the water supply pipe 1, and enters the interior of the limit pipe 31 through the flow hole I 32. The limit pipe 31 is not provided with a through hole, so that the water that enters the inner cavity of the limit pipe 31 and is located below the flow hole I32 is in a state where the water cannot flow; however, the water in the cavity that enters the limit pipe 31 and is located above the adjustment device 34 enters the interior of the sprinkling irrigation device 5 through a rectangular through hole 54, and is sprinkled out from one end of the nozzle 56 for sprinkling irrigation, impacting the directional plate 10 and causing the sprinkled water to change direction under the obstruction of the directional plate 10, at the same time, the directional plate 10 rotates under the action of impact force, so that the spring connecting the directional sleeve 9 to the sprinkling irrigation device 5 has an elastic deformation, and then drives the sprinkling irrigation device 5 to rotate in the same direction; due to the matching of the locked plate 73 and the damping block 351, the sprinkling irrigation device 5 cannot be reset after rotation, resulting in a change in the sprinkling irrigation direction of the nozzle 56, whereas the spring connecting the directional sleeve 9 and the sprinkling irrigation device 5 will drive the directional sleeve 9 and the directional plate 10 to reset after resetting, such that the directional plate 10 is in contact with the water sprinkled by the nozzle 56, thus repeating the above steps to ensure that the angles of the sprinkling irrigation can be continuously adjusted by the device and the sprinkling irrigation machine can fully sprinkle the circular range with its own radius, avoiding the problem of dead zone caused by the inability to adjust the sprinkling angle of traditional sprinkling irrigation machines, and improving the practicality of the device. The adjustment device 34 is matched with the damping device 35, a connecting block 36 is fixedly arranged at a position on the outer surface of the limit pipe 31 where is located below the damping device 35, and the connecting block 36 is fixedly connected to an inner wall of the water supply pipe 1. 0035. As illustrated in FIG. 8, the adjustment device 34 includes an adjusting plate 341, the adjusting plate 341 is fixedly arranged at one end of the output shaft of the telescopic machine 33, a bottom portion of the adjusting plate 341 is provided with a flow hole II 342, an adjusting block 343 is fixedly arranged on the outer surface of the adjusting plate 341, a position of a top portion of the adjusting block 343 where is located proximity to one end is provided with a sleeve hole 344, the sleeve hole 344 is movably sleeved with the damping device 35, so that the device is capable of adjusting the height of the adjustment device 34 through the telescopic machine 33. When it is necessary to reduce the coverage of the single sprinkling irrigation, the adjustment device 34 can be lifted by the telescopic machine 33, so that the reset spring 354 is in a compressed state, at this time, the pitch of the reset spring 354 is shortened under the action of the axial force, resulting in the partial consumption of its elastic potential energy, which weakens the circumferential deformation ability of the reset spring 354, so that the rotation angle of the damping block 351 is reduced under the same circumstance, so that the resistance on the locked plate 73 from the damping block 351 is increased during the rotation process of the process stopping device 7, and so that the rotation angle of the sprinkling irrigation device 5 is reduced during the single sprinkling irrigation action, thereby reducing the coverage of the single sprinkling irrigation. When it is necessary to improve the coverage of the single sprinkling irrigation, the adjustment device 34 can be reset driven by the telescopic machine 33, which can increase the coverage of the single sprinkling irrigation and further improve the practicability of the device. 0036. As illustrated in FIG. 9, the damping device 35 includes a damping block 351, the damping block 351 is matched with the process stopping device 7, the damping block 351 is matched with a rectangular hole opened at the outer surface of the limit pipe 31, and a process stopping plate 352 is fixedly arranged on one side of the damping block 351 and the bottom portion of the damping block 351 is fixed with a rotating shaft 353 and the limit pipe 31 is not provided with the through hole, such that the water that enters the inner cavity of the limit pipe 31 and is located below the flow hole I32 is in a state where the water cannot flow, the water on one side of the damping device 35 where is located outside the limit pipe 31 is in a state where the water can flow, and the water on the other side of the damping device 35 where is located inside the limit pipe 31 is in a state where the water cannot flow, therefore the damping device 35 is subjected to the external force, and the damping block 351 rotates with the axis of the reset spring 354 as the rotation center under this force, thereby reducing the volume of the damping block 351 extending into the limit pipe 31. When the device is in a high pressure water supply and the water flow speed is high, and the damping block 351 is subjected to a greater force, resulting in a smaller volume of the damping block 351 extending into the limit pipe 31. At this time, the contact range between the locked plate 73 and the damping block 351 during the rotation of the sprinkling irrigation device is reduced, which reduces the resistance during the rotation process of the process stopping device 7 and increases the rotation angle of the sprinkling irrigation device 5, thereby increasing the angle of the single swing under the premise of ensuring the faster water supply rate of the device, improving the coverage of the single sprinkling irrigation in this case, avoiding the problem of excessive irrigation caused by the traditional equipment having a large water supply rate but an unchanged coverage, and improving the irrigation stability of the device. The rotating shaft 353 is movably sleeved with the sleeve hole 344, and a reset spring 354 is fixedly arranged at a position of the bottom portion of the damping block 351 where is located outside the rotating shaft 353, and a bottom portion of the reset spring 354 is fixedly connected to a top portion of the adjusting block 343. 0037. As illustrated in FIGS. 10 to 13, the sprinkling irrigation device 5 includes a liquid diversion pipe 51, a mounting plate 52 is fixedly arranged at a bottom portion of an outer surface for the liquid diversion pipe 51, the mounting plate 52 is in contact with the bearing 8, a limit ring 53 is fixedly arranged at a bottom portion of the liquid diversion pipe 51, the limit ring 53 is movably sleeved with the limit hole 2, a top portion of the limit ring 53 is provided with a rectangular through hole 54, the connecting rod 6 is fixedly arranged at a bottom portion of the limit ring 53, a spring seat 55 is fixedly arranged at a top portion of the liquid diversion pipe 51, a nozzle 56 is fixedly arranged at a top portion of the spring seat 55, one end of the nozzle 56 for sprinkling irrigation corresponds to the directional plate 10. 0038. As illustrated in FIG. 13, the rectangular through hole 54 is an oblique slot, which generates the circumferential force when the water path passes through the rectangular through hole 54, thereby balancing the reverse force formed by the end of the nozzle 56 for sprinkling irrigation when sprinkling water, avoiding the problem that the sprinkling irrigation device 5 cannot rotate, and improving the stability of the device. 0039. As illustrated in FIG. 14, the process stopping device 7 includes a baffle board 71, the baffle board 71 is fixed connected to a bottom portion of the spring seat 55, a position of a top portion of the baffle board 71 where is located outside the spring seat 55 is provided with a flow holeIII 72, a locked plate 73 is fixedly arranged at an outer surface of the baffle board

71, and the locked plate 73 is matched with the damping block 351. 0040. The using method of the present disclosure is as follows. 0041. During the using process, water enters the interior of the water supply pipe 1 through the pressure from the bottom portion of the water supply pipe 1, and enters the interior of the limit pipe 31 through the flow hole I32. The limit pipe 31 is not provided with a through hole, so that the water that enters the inner cavity of the limit pipe 31 and is located below the flow hole I32 is in a state where the water cannot flow, however the water in the cavity that enters the limit pipe 31 and is located above the adjustment device 34 enters the interior of the sprinkling irrigation device 5 through the rectangular through hole 54 and is sprinkled out from the end of the nozzle 56 for sprinkling irrigation, impacting the directional plate 10 and causing the sprinkled water to change direction under the obstruction of the directional plate , at the same time, the directional plate 10 rotates under the action of the impact force, so that the spring connecting the directional sleeve 9 to the sprinkling irrigation device 5 has an elastic deformation, and then drives the sprinkling irrigation device 5 to rotate in the same direction; due to the matching of the locked plate 73 and the damping block 351, the sprinkling irrigation device 5 cannot be reset after rotation, resulting in a change in the sprinkling irrigation direction of the nozzle 56, whereas the spring connecting the directional sleeve 9 to the sprinkling irrigation device 5 will drive the directional sleeve 9 and the directional plate 10 to reset after resetting, such that the directional plate 10 is in contact with the water sprinkled from the nozzle 56, thus repeating the above steps to ensure that the angles of the sprinkling irrigation can be continuously adjusted by the device and that the sprinkling irrigation machine can fully sprinkle the circular range with its own radius. The water on one side of the damping device 35 where is located outside the limit pipe 31 is in a state where the water can flow, and the water on the other side of the damping device 35 where is located inside the limit pipe 31 is in a state where the water cannot flow, therefore the damping device 35 is subjected to the external force, and the damping block 351 rotates with the axis of the reset spring 354 as the rotation center under this force, thereby reducing the volume of the damping block 351 extending into the limit pipe 31. When the device is in a high pressure water supply and the water flow speed is high, and the damping block 351 is subjected to a greater force, resulting in a smaller volume of the damping block 351 extending into the limit pipe 31. At this time, the contact range between the locked plate 73 and the damping block 351 during the rotation of the sprinkling irrigation device is reduced, which reduces the resistance during the rotation process of the process stopping device 7 and increases the rotation angle of the sprinkling irrigation device 5, thereby increasing the angle of the single swing under the premise of ensuring the faster water supply rate of the device, improving the coverage of the single sprinkling irrigation in this case. When it is necessary to reduce the coverage of the single sprinkling irrigation, the adjustment device 34 can be lifted by the telescopic machine 33, so that the reset spring 354 is in a compressed state, at this time, the pitch of the reset spring 354 is shortened under the action of the axial force, resulting in the partial consumption of its elastic potential energy, which weakens the circumferential deformation ability of the reset spring 354, so that the rotation angle of the damping block 351 is reduced under the same circumstances, so that the resistance on the locked plate 73 from the damping block 351 is increased during the rotation process of the process stopping device 7, and so that the rotation angle of the sprinkling irrigation device 5 is reduced during the single sprinkling irrigation action, thereby reducing the coverage of the single sprinkling irrigation. When it is necessary to improve the coverage of the single sprinkling irrigation, the adjustment device 34 can be reset driven by the telescopic machine 33, which can increase the coverage of the single sprinkling irrigation. 0042. It should be noted that in the present disclosure, relational terms such as first and second order are used only to distinguish one entity or operation from another and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "includes", "contains" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or equipment comprising a set of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or equipment. 0043. Although the embodiments of the present disclosure have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, replacements and variants can be made in the present disclosure without departing from the spirit and scope of the present disclosure. The scope of the present disclosure is limited by the attached claims and their equivalents.

Claims

CLAIMS What is claimed is:

1. A sprinkling irrigation machine for seedling cultivation and maintenance, comprising a water supply pipe (1), wherein a top portion of the water supply pipe (1) is provided with a limit hole (2), a limit device (3) is fixedly arranged at a bottom portion of the limit hole (2) and inside the water supply pipe (1), a limit piece (4) is fixedly arranged on an inner wall of the limit hole (2), an inner part of the limit hole (2) is movably sleeved with a sprinkling irrigation device (5) through the limit piece (4), a connecting rod (6) is fixedly arranged at a bottom portion of the sprinkling irrigation device (5), a process stopping device (7) is fixedly arranged at a bottom portion of the connecting rod (6), a position on an outer surface of the sprinkling irrigation device (5) where is located proximity to a bottom portion is fixedly sleeved with a bearing (8), a directional sleeve (9) is fixedly sleeved with an outer surface of the bearing (8), a directional plate (10) is fixedly arranged on a top portion of the directional sleeve (9), the directional plate (10) corresponds to the sprinkling irrigation device (5), the directional sleeve (9) is connected to the sprinkling irrigation device (5) through a spring, a limit sleeve (11) is fixedly arranged on a top portion of the water supply pipe (1) where is located on an outer side of the directional sleeve (9), the limit sleeve (11) is sleeved with the directional sleeve (9).

2. The sprinkling irrigation machine for seedling cultivation and maintenance according to claim 1, wherein the limit device (3) includes a limit pipe (31), a bottom end of the limit pipe (31) is set as a tip end, a position on an outer surface of the limit pipe (31) where is located proximity to a top portion is provided with a flow hole (32), and a telescopic machine (33) is fixedly arranged at a bottom portion of an inner cavity of the limit pipe (31), an adjustment device (34) is fixedly arranged at one end of an output shaft of the telescopic machine (33), a position on the outer surface of the limit pipe (31) where is located below the flow hole (32) is provided with a rectangular hole, and a damping device (35) is movably arranged inside the rectangular hole, the adjustment device (34) is matched with the damping device (35), a connecting block (36) is fixedly arranged at a position on the outer surface of the limit pipe (31) where is located below the damping device (35), and the connecting block (36) is fixedly connected to an inner wall of the water supply pipe (1).

3. The sprinkling irrigation machine for seedling cultivation and maintenance according to claim 2, wherein the adjustment device (34) includes an adjusting plate (341), the adjusting plate (341) is fixedly arranged at one end of the output shaft of the telescopic machine (33), a bottom portion of the adjusting plate (341) is provided with a flow hole11 (342), an adjusting

block (343) is fixedly arranged on the outer surface of the adjusting plate (341), a position of a top portion of the adjusting block (343) where is located proximity to one end is provided with a sleeve hole (344), the sleeve hole (344) is movably sleeved with the damping device

(35).

4. The sprinkling irrigation machine for seedling cultivation and maintenance according to claim 3, wherein the damping device (35) includes a damping block (351), the damping block (351) is matched with the process stopping device (7), the damping block (351) is matched with a rectangular hole opened at the outer surface of the limit pipe (31), and a process stopping plate (352) is fixedly arranged on one side of the damping block (351) and a rotating shaft (353) is fixedly arranged at a bottom portion of the damping block (351), the rotating shaft (353) is movably sleeved with the limit pipe (31), the rotating shaft (353) is movably sleeved with the sleeve hole (344), and a reset spring (354) is fixedly arranged at a position of the bottom portion of the damping block (351) where is located outside the rotating shaft (353), and a bottom portion of the reset spring (354) is fixedly connected to the top portion of the adjusting block (343).

5. The sprinkling irrigation machine for seedling cultivation and maintenance according to claim 1, wherein the sprinkling irrigation device (5) includes a liquid diversion pipe (51), a mounting plate (52) is fixedly arranged at a bottom portion of an outer surface of the liquid diversion pipe (51), the mounting plate (52) is in contact with the bearing (8), a limit ring (53) is fixedly arranged at a bottom portion of the liquid diversion pipe (51), the limit ring (53) is movably sleeved with the limit hole (2), a top portion of the limit ring (53) is provided with a rectangular through hole (54), the connecting rod (6) is fixedly arranged at a bottom portion of the limit ring (53), a spring seat (55) is fixedly arranged at a top portion of the liquid diversion pipe (51), a nozzle (56) is fixedly arranged at a top portion of the spring seat (55), one end of the nozzle (56) for sprinkling irrigation corresponds to the directional plate (10).

6. The sprinkling irrigation machine for seedling cultivation and maintenance according to claim 5, wherein the rectangular through hole (54) has an oblique slot.

7. The sprinkling irrigation machine for seedling cultivation and maintenance according to claim 5, wherein the process stopping device (7) includes a baffle board (71), the baffle board (71) is fixed connected to a bottom portion of the spring seat (55), a position of a top portion of the baffle board (71) where is located outside the spring seat (55) is provided with a flow hole III (72), a locked plate (73) is fixedly arranged at an outer surface of the baffle board

(71), and the locked plate (73) is matched with the damping block (351).