Liquid fertilizer sprinkling irrigation device for alfalfa planting

Abstract

A liquid fertilizer sprinkling irrigation device for alfalfa planting belongs to the technical field of sprinkling irrigation devices. The device adopts the design of a double-cavity storage tank, switching irrigation of liquid fertilizer and irrigation water is achieved through a movable sealing plate, and the problems that traditional equipment is single in function, and irrigation strategies cannot be adjusted in real time are solved. The angle of an irrigation pipe is adjusted through a cam mechanism so as to adapt to a sloping field; the bottoms of the two bins are provided with a common liquid discharge box, closing plates are used for displacement to control opening and closing of liquid discharge pipes of the corresponding bins, and a magnetic transmission mechanism is matched to drive a stirring shaft to operate to prevent liquid precipitation; a transmission system is driven by power of the movable frame, so that linkage of liquid switching and stirring functions is realized; a camera steering mechanism driven by buoyancy is additionally arranged, a floating plate drives a lifting rod to move through the thrust of stirring blades and the buoyancy of liquid, and the monitoring visual angle is expanded. The device is used for on-demand sprinkling irrigation of liquid fertilizer and irrigation water in alfalfa planting, and integration of irrigation mode switching, precipitation prevention and growth monitoring functions is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of sprinkler irrigation devices, in particular to a liquid fertilizer sprinkler irrigation device for alfalfa planting. Background Art

[0002] Alfalfa is a perennial herbaceous plant in the genus Medicago, Leguminosae. Its stems are erect, clumping, or prostrate, quadrangular and heavily branched. Its stipules are large, ovate-lanceolate, and its leaflets are obovate-oblong. Its flowers are clustered in racemes, with bell-shaped pedicels and purple corollas. Its fruits are spiral-shaped and brown when ripe. Its seeds are small, smooth, and yellow or brown. To maintain a stable yield, alfalfa cultivation requires irrigation and fertilization to ensure normal growth.

[0003] However, the existing sprinkler irrigation technology still has the following deficiencies in application: (1) The existing technology has a single function during the fertilization process and can only realize fertilization operations. When the alfalfa leaves turn yellow or burnt, it indicates that the fertilizer concentration is too high or the electrical conductivity (EC) value exceeds the standard. Irrigation must be stopped immediately and the soil must be flushed with irrigation water (because it is in the wild, the irrigation water used is mostly river water / lake water / collected rainwater / irrigation canal water). However, the existing sprinkler irrigation equipment needs to be switched to irrigation water mode or equipped with flushing equipment, which not only increases the planting cost, but also makes it impossible to adjust the fertilization and irrigation strategies in time according to the growth of alfalfa; (2) When liquid fertilizer is used for irrigation, precipitation is likely to occur in the liquid fertilizer, which prevents the fertilizer from being absorbed by the alfalfa during the irrigation process. The precipitation is also very likely to clog the nozzle. In addition, whether it is liquid fertilizer or irrigation water, the precipitation accumulates in the storage tank for a long time. The metal ions such as iron and manganese in the precipitation may form acidic substances after oxidation, which accelerates the corrosion of the tank metal and shortens the service life of the equipment.

[0004] In response to the above problems, the present invention document proposes a liquid fertilizer sprinkler device for alfalfa planting. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the existing single function, inability to fertilize and flush the soil according to the situation, sedimentation in the tank body easily clogging the nozzle and causing corrosion to the inner wall of the tank, and to propose a liquid fertilizer sprinkler device for alfalfa planting.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A liquid fertilizer sprinkler irrigation device for alfalfa planting includes a movable frame, the bottom of which is pivotally connected to two first rotating shafts via a bearing, and anti-slip wheels are fixed at both ends of the first rotating shafts, and further includes: A storage tank is fixed on the top of the mobile frame, and its interior is divided into a liquid fertilizer tank and a water tank by a partition; The deployment structure includes two connecting arms rotatably connected to both sides of the mobile frame, a second electric push rod for driving the connecting arms to deploy, and an irrigation pipe fixed to the bottom of the connecting arms; The replacement structure includes a trapezoidal rod slidably fitted on the partition, a closing plate slidably fitted on the movable frame, and a drainage box provided in the movable frame. The bottoms of the liquid fertilizer tank and the water tank are respectively connected to the drainage box through drainage pipes. The closing plate is driven by a first electric push rod to selectively close one of the drainage pipes. A stirring mechanism, comprising a stirring shaft rotating in the liquid fertilizer tank and the water tank, a stirring blade fixed to the stirring shaft, and a control structure for controlling the start and stop of the stirring shaft through magnetic transmission; In which, the control structure includes a transmission shaft linked to the trapezoidal rod, and the transmission shaft selectively drives the stirring shaft in the liquid fertilizer tank or water tank to rotate through a magnetic attraction component. When the closing plate moves, the driving state of the stirring shaft is switched through the cooperation between the trapezoidal groove and the trapezoidal rod.

[0007] As a further improvement of the above technical solution: The expanded structure further comprises: Two second rotating shafts are pivotally connected to one end of the storage tank through a base plate, a connecting seat is fixed to the outer wall of the second rotating shaft, and the connecting arm is pivotally connected to the connecting seat; A cam is fixed to the top of the second rotating shaft and has a pin on its top; A movable frame is fixed to the output shaft of the second electric push rod, and the pin shaft is slidably fitted in the movable frame to drive the connecting arm to expand or fold under the drive of the second electric push rod; The irrigation pipe is provided with a plurality of nozzles, and a self-locking motor is provided in the connecting seat. The output shaft of the self-locking motor is fixedly connected to the connecting arm for adjusting the inclination angle of the connecting arm.

[0008] The control structure further includes: a cylinder fixed in the partition, with a base plate provided on the top; a first bevel gear, pivotally connected to the base plate and slidingly engaged with the transmission shaft via a sliding groove; A frame body is slidably arranged on the bottom of the cylinder, and the transmission shaft passes through the frame body; The connecting rod has two ends pivotally connected to the frame body and the trapezoidal rod, and the trapezoidal rod is reset by a spring and matched with the trapezoidal groove of the closing plate.

[0009] The magnetic attraction component includes: A first turntable is fixed to the end of the stirring shaft and has a plurality of first magnets arranged around it; The second turntable is fixed to the end of the transmission shaft, and a plurality of second magnets that are magnetically matched with the first magnets are provided on its circumference.

[0010] The stirring mechanism further includes a driving structure, which includes: a second bevel gear meshing with the first bevel gear and connected to the first synchronous gear via a drive shaft; The second synchronous wheel is fixed to one of the first rotating shafts, and the first synchronous wheel and the second synchronous wheel are driven by a synchronous belt.

[0011] It also includes a water pump, the liquid inlet end of which is connected to the drainage box through a liquid inlet pipe, and the liquid outlet end is connected to the irrigation pipe through a three-way valve. A column is pivotally provided on the top of the storage tank, and a high-definition camera is fixed on the top of the column.

[0012] Also includes: Floating plates are slidably arranged on both sides of the partition plate and are in clearance with the stirring blades; A lifting rod is fixed to the top of the floating plate, with its top end extending above the storage tank and connected to a pin block; In which, an arc-shaped groove is provided on the outer wall of the column, and the pin block slides in the arc-shaped groove to drive the column to rotate back and forth. The up and down movement of the float plate is driven by the thrust of the stirring blade and the buoyancy of the liquid. The drain pipe and the drain box are connected by a sealing flange, and a sealing ring is provided between the closing plate and the inner wall of the drain box.

[0013] Beneficial effects: In the present invention, the bottom ends of the two drainage pipes are fixedly extended into the drainage box, the closing plate is sealingly slid on the top inner wall of the drainage box, and one end of the output shaft of the first electric push rod is sealingly slidably extended into the drainage box and is fixedly connected to one side of the closing plate; the output shaft of the first electric push rod pushes the closing plate to move to control the closing and opening of the drainage pipes at the bottom of the liquid fertilizer bin and the water bin, thereby enabling irrigation of liquid fertilizer or irrigation water of different concentrations as needed, so that alfalfa can grow better; In the present invention, a first bevel gear is rotated in the cylinder through the base plate, a transmission shaft is slidably passed through the first bevel gear, one end of the transmission shaft is fixedly passed through the frame, both ends of the transmission shaft are fixed with a first transmission mechanism, and the ends of the two stirring shafts close to each other are fixed with a second transmission mechanism, and the bottom of the frame and the top of the trapezoidal rod are rotatably connected by a connecting rod; the lifting and lowering of the trapezoidal rod can control the self-locking motor to drive the transmission shaft to move left and right, and then can control the transmission between the two adjacent first transmission mechanisms and the two second transmission mechanisms, so that the liquid in the liquid fertilizer bin or water bin can be stirred to avoid precipitation; In the present invention, both sides of the partition are slidably connected with a floating plate, and two lifting rods are fixed on the top of the two floating plates, a connecting plate is fixed between the two adjacent lifting rods, and a pin block is fixed on the side of the two connecting plates close to each other, and the outer wall of the column is provided with two arc grooves; the thrust of the stirring blade and the floating plate itself drive the floating plate and the lifting rod to move up and down under the buoyancy of the liquid, and the lifting rod drives the connecting plate and the pin block to move synchronously, and the cooperation of the pin block and the arc groove drives the column to rotate back and forth, and then, while the mobile frame moves forward for watering and fertilizing, the high-definition camera can capture the specific situation of alfalfa planting, provide a basis for watering or fertilizing, and facilitate the later watering of alfalfa with liquid fertilizer or irrigation water, thereby stabilizing the yield of alfalfa planting; In the present invention, liquid fertilizer or irrigation water can be timely applied to alfalfa according to specific conditions of alfalfa planting, thereby ensuring the healthy growth of alfalfa. In addition, the corresponding liquid can be stirred during irrigation, thereby avoiding precipitation in the corresponding liquid during irrigation, and also preventing the precipitation from corroding the inner wall of the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a liquid fertilizer sprinkler device for alfalfa planting provided in Example 1 of the present invention; Figure 2 This is a schematic diagram of a three-dimensional cross-sectional structure of a liquid fertilizer sprinkler device for alfalfa planting provided by Example 1 of the present invention; Figure 3 This is a schematic three-dimensional cross-sectional view of the partition, cylinder, and drainage box of a liquid fertilizer sprinkler irrigation device for alfalfa planting provided by Example 1 of the present invention; Figure 4 This is a schematic diagram of the three-dimensional exploded structure of the second turntable, first bevel gear and frame of the liquid fertilizer sprinkler irrigation device for alfalfa planting provided by Example 1 of the present invention; Figure 5 This is a schematic diagram of the three-dimensional exploded structure of the drive shaft, partition plate and first rotating shaft of the liquid fertilizer sprinkler irrigation device for alfalfa planting provided by Example 1 of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the connecting arm, second electric push rod and movable frame of the liquid fertilizer sprinkler irrigation device for alfalfa planting provided by Example 1 of the present invention; Figure 7 This is a schematic diagram of the three-dimensional exploded structure of the connecting seat, movable frame and cam of the liquid fertilizer sprinkler irrigation device for alfalfa planting provided by Example 1 of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of a liquid fertilizer sprinkler device for alfalfa planting provided by Example 2 of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the floating plate, lifting rod and column of a liquid fertilizer sprinkler system for alfalfa planting provided by Example 2 of the present invention; Figure 10 This is a schematic diagram of the three-dimensional exploded structure of the connecting plate, pin block and column of a liquid fertilizer sprinkler device for alfalfa planting provided by Example 2 of the present invention.

[0015] In the figure: 1. Mobile frame; 2. First rotating shaft; 3. Anti-skid wheel; 4. Storage tank; 5. Partition; 6. Cylinder; 7. Liquid fertilizer bin; 8. Water bin; 9. Column; 10. High-definition camera; 11. Drain box; 12. Drain pipe; 13. Closing plate; 14. First electric push rod; 15. Liquid inlet pipe; 16. Water pump; 17. Stirring shaft; 18. Stirring blade; 19. First turntable; 20. First magnet; 21. Base plate; 22. First bevel gear; 23. Drive shaft; 24. Second turntable 25. Second magnet; 26. Frame; 27. Trapezoidal rod; 28. Connecting rod; 29. ​​Spring; 30. Trapezoidal groove; 31. Drive shaft; 32. Second bevel gear; 33. Second rotating shaft; 34. Connecting seat; 35. Connecting arm; 36. Self-locking motor; 37. Irrigation pipe; 38. Sprinkler; 39. Cam; 40. Pin; 41. Moving frame; 42. Second electric push rod; 43. Support block; 44. Floating plate; 45. Lifting rod; 46. Connecting plate; 47. Pin block; 48. Arc groove. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Example 1 Reference Figure 1 and Figure 2 , a sprinkler device, relates to the technical field of sprinkler devices, the device includes a mobile frame 1, the bottom of the mobile frame 1 is rotatably connected to two first rotating shafts 2 through a base, and both ends of the two first rotating shafts 2 are fixed with anti-skid wheels 3 by bolts.

[0018] During movement, the first rotating shaft 2 rotates in the base, driving the anti-skid wheel 3 to rotate. The friction between the anti-skid wheel 3 and the ground enables the entire mobile frame 1 to move smoothly, making it convenient to irrigate and fertilize alfalfa in different planting areas.

[0019] Reference Figure 1 and Figure 2 The device also includes a storage tank 4 fixed to the top of the mobile frame 1 by bolts, and a partition 5 is fixed inside the mobile frame 1. The storage tank 4 forms a liquid fertilizer tank 7 and a water tank 8 through the partition 5, which are used to store liquid fertilizer and irrigation water respectively.

[0020] Reference Figure 1 、 Figure 6 and Figure 7An expansion structure is provided at one end of the storage tank 4. The expansion structure includes two connecting arms 35 that rotate on one end of the mobile frame 1 and a second electric push rod 42 fixed to the top of the storage tank 4. The expansion structure also includes two second rotating shafts 33 that rotate on one end of the storage tank 4 through the base plate 21. The outer walls of the two second rotating shafts 33 are fixedly sleeved with connecting seats 34. The two connecting seats 34 are rotatably connected to the two connecting arms 35 on the sides away from each other. The bottoms of the two connecting arms 35 are fixedly connected to irrigation pipes 37 via U-shaped sockets. Multiple nozzles 38 are fixed to the bottoms of the irrigation pipes 37. Cams 39 are bolted to the tops of the two second rotating shafts 33. Pins 40 are bolted to the tops of the two cams 39. The output shaft of the second electric push rod 42 is fixed to the mobile frame 41. The two pins 40 slide within the mobile frame 41. Support blocks 43 are welded to both sides of the storage tank 4.

[0021] Specifically, when the connecting arm 35 needs to be deployed for irrigation, the second electric push rod 42 is activated, and its output shaft retracts, pulling the movable frame 41 to move. As the pin 40 slides within the movable frame 41, the movement of the movable frame 41 drives the cam 39 and the second rotating shaft 33 to rotate. The second rotating shaft 33 rotates the connecting arm 35 via the connecting base 34, unfolding the connecting arm 35. Once deployed, the multiple nozzles 38 at the bottom of the two irrigation pipes 37 can begin irrigation. Furthermore, a self-locking motor 36 is fixed within the connecting base 34. The output shaft of the self-locking motor 36 is fixedly connected to the connecting arm 35. This rotation of the connecting arm 35 by the self-locking motor 36 tilts the connecting arm 35, enabling fertilization of alfalfa planted on a gentle slope. When irrigation is not needed, the output shaft of the second electric push rod 42 extends, pushing the movable frame 41 in the opposite direction, causing the connecting arm 35 to rotate and fold. The support block 43 supports the folded connecting arm 35.

[0022] Reference Figure 7 On the basis of the above device, a self-locking motor 36 is fixedly installed in the connecting seat 34 by bolts, and the output shaft of the self-locking motor 36 is fixedly connected to the connecting arm 35 by a coupling.

[0023] Specifically, when alfalfa grown on a slope needs to be irrigated, the connecting arm 35 is unfolded and the self-locking motor 36 is activated. The output shaft of the self-locking motor 36 drives the connecting arm 35 to rotate, causing the connecting arm 35 to be tilted. By controlling the rotation angle of the self-locking motor 36, the tilt angle of the connecting arm 35 can be precisely adjusted to adapt to slopes of varying gradients, ensuring that the irrigation pipe 37 can accurately irrigate the alfalfa on the slope.

[0024] Reference Figure 2 and Figure 3The replacement structure includes a trapezoidal rod 27 slidably connected to the partition 5 and a closing plate 13 sliding in the mobile frame 1, and also includes a drainage box 11 fixed in the mobile frame 1. The bottom inner walls of the liquid fertilizer tank 7 and the water tank 8 are fixed with drainage pipes 12, and the bottom ends of the two drainage pipes 12 are fixedly extended into the drainage box 11. The closing plate 13 seals and slides on the top inner wall of the drainage box 11, and is used to close and open the drainage pipes 12. A first electric push rod 14 is fixed in the mobile frame 1, and one end of the output shaft of the first electric push rod 14 seals and slides and extends into the drainage box 11 and is fixedly connected to one side of the closing plate 13, and is used to drive the closing plate 13 to move. The inner walls of the liquid fertilizer tank 7 and the water tank 8 on the side away from each other are both rotatably connected to a stirring shaft 17, and the outer walls of the two stirring shafts 17 are fixed with multiple stirring blades 18.

[0025] Specifically, when irrigation water is needed, the first electric push rod 14 is activated, and its output shaft pushes the closing plate 13 to the left, closing the drain pipe 12 below the liquid fertilizer bin 7. The irrigation water in the water bin 8 enters the drainage box 11 through the corresponding drain pipe 12. When liquid fertilizer is needed, the output shaft of the first electric push rod 14 pushes the closing plate 13 to the right, closing the drain pipe 12 below the water bin 8. The liquid fertilizer in the liquid fertilizer bin 7 enters the drainage box 11 through the corresponding drain pipe 12. During the drainage process, the stirring shaft 17 and stirring blades 18 continue to rotate, stirring the liquid in the liquid fertilizer bin 7 and the water bin 8 to prevent liquid sedimentation.

[0026] Reference Figure 2-Figure 5 A control structure is provided between the partition 5 and the drainage box 11, and a drive structure is provided between the mobile frame 1 and the partition 5. The control structure is used to control the liquid in the liquid fertilizer tank 7 and the water tank 8 to enter the drainage box 11 as needed, and cooperates with the water pump 16 and other equipment to transport the liquid to the irrigation pipe 37. The drive structure provides power for the rotation of the stirring shaft 17 and the stirring blade 18 to ensure that while completing the corresponding liquid irrigation, the liquid in the liquid fertilizer tank 7 and the water tank 8 can be fully stirred, so that the liquid fertilizer and the irrigation water are evenly mixed, thereby improving the irrigation effect. Through the coordinated work of the control structure and the drive structure, the type and amount of irrigation liquid can be accurately controlled according to the growth of alfalfa, thereby achieving precise fertilization and irrigation of alfalfa.

[0027] Reference Figure 3 and Figure 4The control structure includes a cylinder 6 fixed in the partition 5. A base plate 21 is fixed to the inner wall of the top of the cylinder 6 by bolts. A first bevel gear 22 is rotatably connected to one side of the base plate 21. A transmission shaft 23 slides through the first bevel gear 22 through a slide groove and a slider. A frame 26 is slidably connected to the inner wall of the bottom of the cylinder 6. One end of the transmission shaft 23 is fixed through the frame 26. A first transmission mechanism is fixed at both ends of the transmission shaft 23. The ends of the two stirring shafts 17 that are close to each other are rotated and extended into the cylinder 6 and are fixed to a second transmission mechanism. The adjacent first transmission mechanisms are connected to the second transmission mechanism for driving the corresponding stirring shaft 17 to rotate. The top of the trapezoidal rod 27 slides and extends into the cylinder 6 in a sealed manner and is installed with a spring 29 through a spring seat. The top of the spring 29 abuts the bottom of the frame 26 through the spring seat to cause the trapezoidal rod 27 to move downward and reset. The bottom of the frame 26 and the top of the trapezoidal rod 27 are rotatably connected by a connecting rod 28 to drive the frame 26 to move when the trapezoidal rod 27 is raised or lowered. A trapezoidal groove 30 is provided on the top of the closing plate 13, and the bottom end of the trapezoidal rod 27 extends into the drainage box 11 in a sealed sliding manner and cooperates with the trapezoidal groove 30. When the closing plate 13 moves, the trapezoidal rod 27 is driven to rise and fall through the cooperation between the trapezoidal groove 30 and the trapezoidal rod 27.

[0028] Specifically, when trapezoidal rod 27 moves downward under the elastic force of spring 29, it drives frame 26 and drive shaft 23 to the left via connecting rod 28, causing second turntable 24 on the left to align with adjacent first turntable 19. At this point, the magnetic attraction between adjacent first magnet 20 and second magnet 25 drives stirring shaft 17 and stirring blade 18 to rotate, stirring the liquid fertilizer in liquid fertilizer tank 7 and redissolving precipitated fertilizer in the liquid to prevent sedimentation. Conversely, this drives stirring shaft 17 in water tank 8 to rotate, stirring the irrigation water.

[0029] Reference Figure 4 The first transmission mechanism includes a second turntable 24 and multiple second magnets 25. The second turntable 24 is fixed to the end of the transmission shaft 23. The multiple second magnets 25 are fixed to the end of the second turntable 24 away from the transmission shaft 23 and are arranged in a ring. The second transmission mechanism includes a first turntable 19 and multiple first magnets 20. The first turntable 19 is fixed to the end of the stirring shaft 17 close to the transmission shaft 23. The multiple first magnets 20 are fixed to the side of the first turntable 19 close to the transmission shaft 23 and are arranged in a ring. Magnetic attraction is generated between the first magnets 20 and the second magnets 25.

[0030] Specifically, the transmission shaft 23 drives the two first transmission mechanisms to move, thereby controlling the distance between adjacent first transmission mechanisms and second transmission mechanisms. The transmission shaft 23 then drives the corresponding stirring shaft 17 to rotate, thereby completing the stirring of the corresponding liquid.

[0031] Reference Figure 4 and Figure 5The drive structure includes a second bevel gear 32 that rotates within the cylinder 6 and meshes with the first bevel gear 22. A drive shaft 31 is fixed to the center of one side of the second bevel gear 32. One end of the drive shaft 31 rotates through the cylinder 6, the partition 5, and the storage tank 4, and is fixed to the first synchronous gear. A second synchronous gear is fixed to the outer wall of one of the first rotating shafts 2. The first and second synchronous gears are connected by a synchronous belt drive, which is used to drive the second bevel gear 32 when the first rotating shaft 2 rotates, providing driving force for the control structure.

[0032] Through the coordinated work of the above parts, the alfalfa planting liquid fertilizer sprinkler device can achieve efficient and precise irrigation and fertilization of alfalfa, and at the same time facilitate the staff to adjust the irrigation strategy according to the growth conditions of alfalfa.

[0033] Reference Figure 2 、 Figure 3 and Figure 6 A water pump 16 is bolted to one end of the storage tank 4. The inlet of the water pump 16 is flange-mounted to the inlet pipe 15. One end of the inlet pipe 15 extends into the drainage tank 11 and is sealed thereto to prevent leakage. A three-way valve is fixed to the outlet of the water pump 16, which is connected to two irrigation pipes 37 via flexible hoses.

[0034] Specifically, the water pump 16 is started, and the liquid fertilizer in the drainage tank 11 enters the water pump 16 through the liquid inlet pipe 15 under the action of negative pressure, and is then distributed to the two irrigation pipes 37 through the three-way valve, providing the irrigation pipes 37 with corresponding liquid, thereby realizing the extraction and irrigation functions of the liquid fertilizer.

[0035] Reference Figure 2 A column 9 is provided on the top of the storage tank 4 for rotation through a bearing, and a high-definition camera 10 is fixed to the top of the column 9 by bolts.

[0036] The high-definition camera 10 can capture the alfalfa planting situation in real time. The captured images or videos can be transmitted to the control terminal via wired or wireless means. These data provide a basis for later staff to judge whether to add water or fertilize, and then adjust the type, concentration and irrigation amount of liquid fertilizer and other parameters to achieve precise irrigation of alfalfa and stabilize alfalfa yield.

[0037] Through the coordinated work of the above parts, the alfalfa planting liquid fertilizer sprinkler device can achieve efficient and precise irrigation and fertilization of alfalfa, and at the same time facilitate the staff to monitor the alfalfa planting situation in real time.

[0038] Example 2 refer to Figures 8-10, an improvement based on Example 1: Both sides of the partition 5 are slidably connected with a floating plate 44 through a slide rail, and the floating plate 44 cooperates with the adjacent stirring blade 18. When the stirring shaft 17 and the stirring blade 18 rotate to stir the liquid fertilizer in the liquid fertilizer bin 7, the thrust of the stirring blade 18 and the floating plate 44 itself drive the floating plate 44 to move back and forth up and down under the buoyancy of the liquid. Two lifting rods 45 are fixed to the top of the two floating plates 44 by bolts, and the top ends of the two lifting rods 45 slide and extend to the top of the storage tank 4. A connecting plate 46 is fixed between the two adjacent lifting rods 45 by bolts, and the two connecting plates 46 are located on both sides of the column 9. The two connecting plates 46 are fixed with a pin block 47 on the side close to each other by bolts, and the outer wall of the column 9 is provided with two arc grooves 48, which cooperate with the pin block 47.

[0039] Specifically, as the stirring blades 18 rotate, driving the floating plate 44 and the lifting rod 45 to move back and forth, the lifting rod 45 simultaneously drives the connecting plate 46 and the pin block 47 to move. As the pin block 47 moves within the arcuate slot 48, it drives the column 9 to rotate back and forth. As the mobile frame 1 advances to irrigate and fertilize, the high-definition camera 10, driven by the reciprocating rotation of the column 9, can capture a wider range of the alfalfa planting area, providing a more comprehensive understanding of the alfalfa's growth and providing a more accurate basis for subsequent irrigation and fertilization.

[0040] A method for using a liquid fertilizer sprinkler device for alfalfa planting comprises the following steps: S1. The mobile frame 1 is connected to an external traction machine (the traction machine can be an agricultural tractor, which is not limited here). The traction machine pulls the mobile frame 1 to an area with irrigation. The output shaft of the second electric push rod 42 contracts to pull the mobile frame 41. The cooperation between the mobile frame 41 and the pin 40 drives the cam 39 and the second rotating shaft 33 to rotate. The second rotating shaft 33 drives the connecting arm 35 to rotate through the connecting seat 34, and the connecting arm 35 is unfolded. The multiple nozzles 38 at the bottom of the two irrigation pipes 37 can perform irrigation operations. The self-locking motor 36 can drive the connecting arm 35 to rotate, so that the connecting arm 35 is tilted, thereby fertilizing the alfalfa planted on the gentle slope. S2. When the mobile frame 1 is pulled by the traction machine, the first rotating shaft 2 and the anti-skid wheel 3 rotate. One of the first rotating shafts 2 drives the driving shaft 31 and the second bevel gear 32 to rotate through the synchronous wheel and the synchronous belt. The engagement between the second bevel gear 32 and the first bevel gear 22 drives the transmission shaft 23 to rotate. The transmission shaft 23 can drive the corresponding stirring shaft 17 to rotate through the second turntable 24 and the second magnet 25 to complete the stirring operation; S3, during fertilization, the output shaft of the first electric push rod 14 pushes the closing plate 13 to move to the right, closing the drain pipe 12 below the water tank 8, and the liquid fertilizer in the liquid fertilizer bin 7 enters the drain box 11 through the corresponding drain pipe 12, and is transported to the two irrigation pipes 37 under the action of the water pump 16 for fertilization operation; and the trapezoidal rod 27 moves downward under the elastic force of the spring 29, and the trapezoidal rod 27 drives the frame 26 and the transmission shaft 23 to move to the left through the connecting rod 28, and the second turntable 24 on the left corresponds to the adjacent first turntable 19. At this time, the magnetic attraction between the adjacent first magnet 20 and the second magnet 25 can drive the stirring shaft 17 and the stirring blade 18 to rotate, so as to stir the liquid fertilizer in the liquid fertilizer bin 7 and dissolve the previous precipitation in the liquid again to avoid precipitation; S4. In addition, when the stirring shaft 17 and the stirring blade 18 rotate to stir the liquid fertilizer in the liquid fertilizer bin 7, the thrust of the stirring blade 18 and the floating plate 44 itself drive the floating plate 44 and the lifting rod 45 to move back and forth under the buoyancy of the liquid, and the lifting rod 45 drives the connecting plate 46 and the pin block 47 to move synchronously. The cooperation of the pin block 47 and the arc groove 48 drives the column 9 to rotate back and forth, and then while the mobile frame 1 moves forward to irrigate and fertilize, the high-definition camera 10 can capture the specific situation of alfalfa planting; S5. The high-definition camera 10 can capture the specific conditions of alfalfa planting, and provide a basis for watering or fertilizing during the planting process of alfalfa, thereby stabilizing the yield of alfalfa planting. When the high-definition camera 10 captures the phenomenon of yellowing and burnt edges of alfalfa leaves, the watering of liquid fertilizer is stopped, and the alfalfa and soil need to be sprayed with irrigation water for flushing. Specifically, the output shaft of the first electric push rod 14 drives the closing plate 13 to move to the left, closing the drain pipe 12 under the liquid fertilizer bin 7, and opening the drain pipe 12 under the water tank 8. The irrigation water in the water tank 8 enters the drainage box 11, which facilitates the cooperation of the water pump 16 and the irrigation pipe 37 for irrigation and flushing. The trapezoidal rod 27 moves upward under the action of the inclined surface of the trapezoidal groove 30, and the trapezoidal rod 27 cooperates with the connecting rod 28 to drive the frame 26 and the transmission The shaft 23 moves to the right side, releasing the transmission between the transmission shaft 23 and the stirring shaft 17 in the liquid fertilizer bin 7, and the first turntable 19 at one end of the stirring shaft 17 in the water tank 8 is close to the corresponding second turntable 24, and then through the cooperation of the corresponding first magnet 20 and the second magnet 25, the transmission shaft 23 can drive the stirring shaft 17 in the water tank 8 to rotate, stirring the irrigation water in the water tank 8, and preventing the precipitation in the irrigation water from corroding the inner wall of the movable frame 1 for a long time; in addition, the rotation of the stirring blade 18 can also drive the corresponding floating plate 44 to move back and forth up and down, so that the high-definition camera 10 swings back and forth to shoot alfalfa.

[0041] However, as is well known to those skilled in the art, the working principles and wiring methods of the high-definition camera 10, the second electric push rod 42, the first electric push rod 14 and the liquid inlet pipe 15 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0042] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A liquid fertilizer sprinkler device for alfalfa planting, comprising a movable frame (1), the bottom of which is pivotally connected to two first rotating shafts (2) via bearings, and anti-skid wheels (3) are fixed at both ends of the first rotating shafts (2), characterized in that: Also includes: A storage tank (4) is fixed to the top of the mobile frame (1), and its interior is divided into a liquid fertilizer tank (7) and a water tank (8) by a partition (5); An unfolding structure comprises two connecting arms (35) rotatably connected to both sides of the mobile frame (1), a second electric push rod (42) for driving the connecting arms (35) to unfold, and an irrigation pipe (37) fixed to the bottom of the connecting arms (35); A replacement structure comprises a trapezoidal rod (27) slidably fitted on the partition (5), a closing plate (13) slidably fitted on the mobile frame (1), and a drainage box (11) provided in the mobile frame (1), wherein the bottoms of the liquid fertilizer bin (7) and the water bin (8) are respectively connected to the drainage box (11) via drainage pipes (12), and the closing plate (13) is driven by a first electric push rod (14) to selectively close one of the drainage pipes (12); The stirring mechanism comprises a stirring shaft (17) rotatably arranged in the liquid fertilizer bin (7) and the water bin (8), a stirring blade (18) fixed to the stirring shaft (17), and a control structure for controlling the start and stop of the stirring shaft (17) through magnetic transmission; The control structure includes a transmission shaft (23) linked to the trapezoidal rod (27), and the transmission shaft (23) selectively drives the stirring shaft (17) in the liquid fertilizer bin (7) or the water bin (8) to rotate through a magnetic attraction component. When the closing plate (13) moves, the driving state of the stirring shaft (17) is switched through the cooperation between the trapezoidal groove (30) and the trapezoidal rod (27).

2. The alfalfa planting liquid fertilizer sprinkler device according to claim 1, characterized in that: The expanded structure further comprises: Two second rotating shafts (33) are pivotally connected to one end of the storage tank (4) through a base plate (21); a connecting seat (34) is fixed to the outer wall of the second rotating shaft (33); and the connecting arm (35) is pivotally connected to the connecting seat (34); A cam (39) is fixed to the top of the second rotating shaft (33), and a pin (40) is provided on the top of the cam; A movable frame (41) is fixed to the output shaft of the second electric push rod (42), and the pin shaft (40) is slidably fitted in the movable frame (41) to drive the connecting arm (35) to unfold or fold under the drive of the second electric push rod (42); The irrigation pipe (37) is provided with a plurality of nozzles (38).

3. The alfalfa planting liquid fertilizer sprinkler device according to claim 2, characterized in that: A self-locking motor (36) is provided in the connecting seat (34), and an output shaft of the self-locking motor (36) is fixedly connected to the connecting arm (35) for adjusting the tilt angle of the connecting arm (35).

4. The liquid fertilizer sprinkler device for alfalfa planting according to any one of claims 1 to 3, characterized in that: The control structure further includes: A cylinder (6) is fixed in the partition (5) and has a base plate (21) on its top; A first bevel gear (22) is pivotally connected to the base plate (21) and is slidably engaged with the transmission shaft (23) via a sliding groove; A frame (26) is slidably disposed on the bottom of the cylinder (6), and the transmission shaft (23) passes through the frame (26); The connecting rod (28) has two ends pivotally connected to the frame (26) and the trapezoidal rod (27), and the trapezoidal rod (27) is reset by a spring (29) and cooperates with the trapezoidal groove (30) of the closing plate (13).

5. The alfalfa planting liquid fertilizer sprinkler device according to claim 4, characterized in that: The magnetic attraction component includes: A first turntable (19) is fixed to the end of the stirring shaft (17) and has a plurality of first magnets (20) arranged around it; The second turntable (24) is fixed to the end of the transmission shaft (23), and is provided with a plurality of second magnets (25) in a circumferential direction thereof, which are magnetically engaged with the first magnet (20).

6. The liquid fertilizer sprinkler device for alfalfa planting according to claim 5, characterized in that: The stirring mechanism further includes a driving structure, which includes: a second bevel gear (32) meshing with the first bevel gear (22) and connected to the first synchronous gear via a drive shaft (31); The second synchronous wheel is fixed to one of the first rotating shafts (2), and the first synchronous wheel and the second synchronous wheel are driven by a synchronous belt.

7. The liquid fertilizer sprinkler device for alfalfa planting according to claim 1, characterized in that: It also includes a water pump (16), the liquid inlet end of which is connected to the drainage box (11) through a liquid inlet pipe (15), and the liquid outlet end is connected to the irrigation pipe (37) through a three-way valve.

8. The liquid fertilizer sprinkler device for alfalfa planting according to claim 1, characterized in that: A column (9) is pivotally provided on the top of the storage tank (4), and a high-definition camera (10) is fixed on the top of the column (9).

9. The liquid fertilizer sprinkler device for alfalfa planting according to claim 8, characterized in that: Also includes: A floating plate (44) is slidably disposed on both sides of the partition (5) and is clearance-matched with the stirring blade (18); A lifting rod (45) is fixed to the top of the floating plate (44), with its top end extending above the storage tank (4) and connected to a pin block (47); The outer wall of the column (9) is provided with an arcuate groove (48), and the pin block (47) is slidably fitted in the arcuate groove (48) to drive the column (9) to reciprocate.

10. The liquid fertilizer sprinkler device for alfalfa planting according to claim 9, characterized in that: The upward and downward movement of the floating plate (44) is driven by the thrust of the stirring blade (18) and the buoyancy of the liquid.

Images