Automatic irrigation and fertilization device for agricultural planting

Abstract

The invention relates to the technical field of agricultural fertilization, and discloses an automatic irrigation and fertilization device for agricultural planting, which comprises a vehicle body, the vehicle body is provided with a vehicle plate, the automatic irrigation and fertilization device further comprises a plate frame fixed at the top of the vehicle plate, a swing pipe is rotatably mounted at the top of the plate frame, and an infusion pipe is arranged in the swing pipe in a penetrating manner; a spray head communicated with a liquid conveying pipe is installed at the end of the swing pipe, and the liquid conveying pipe is communicated with a liquid supply system installed on the trolley plate. The device further comprises a swing assembly and an adjusting assembly. The variable-speed swing of the swing pipe is controlled through the swing assembly, and the cross sectional area of the liquid conveying pipe is adjusted through the adjusting assembly according to the swing position, so that the spray head swings fast and small in flow in the middle area, swings slow and large in flow in the edge area, and the liquid fertilizer amount in the edge area is compensated; the problem of non-uniform spraying caused by fan-shaped swinging of a nozzle of a traditional irrigation and fertilization device is effectively solved, the spraying uniformity is improved, and the growth consistency of crops is ensured.

Description

Technical Field

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

[0002] In the field of agricultural planting, irrigation and fertilization are key links in determining crop yield and quality. In order to improve the intensiveness and efficiency of agricultural production, the integrated irrigation and fertilization machine can simultaneously complete irrigation and fertilization work, effectively improving agricultural planting efficiency and saving water resources and labor costs.

[0003] At present, most of the integrated irrigation and fertilization machines on the market first dilute and mix water and liquid fertilizer, and then use nozzles to spray the diluted liquid fertilizer. Although this can expand the spraying range to a certain extent, it is difficult to ensure the uniformity of the spraying. Specifically, the nozzles spray in a fan-shaped scanning manner. Crops closer to the nozzles receive too much liquid fertilizer, while crops farther away from the nozzles receive less liquid fertilizer due to the attenuation of the liquid fertilizer flying in the air, resulting in uneven fertilization of crops within the spraying range, which in turn affects the growth consistency and final yield of the crops. Summary of the Invention

[0004] The object of the present invention is to provide an automated irrigation and fertilization device for agricultural planting to solve at least one technical problem existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an automated irrigation and fertilization device for agricultural planting, comprising a vehicle body having a vehicle plate, and further comprising:

[0006] A frame is fixed to the top of the vehicle plate, and a swing tube is rotatably mounted on the top of the frame. A liquid infusion tube is passed through the interior of the swing tube, and a nozzle connected to the liquid infusion tube is mounted on the end of the swing tube. The liquid infusion tube is connected to the liquid supply system installed on the vehicle plate;

[0007] A swing assembly is used to control the reciprocating swing of the swing tube, and the speed gradually slows down when swinging to both sides with the center of the swing range as the boundary;

[0008] The adjusting component is used to adjust the cross-sectional area of the infusion tube during the swinging process, and the center of the swinging range is used as the boundary. The closer to the edge position, the smaller the cross-sectional area of the infusion tube.

[0009] Optionally, the swing assembly includes a vertical shaft that is rotatably installed on the top of the plate frame, and the vertical shaft can rotate back and forth at a uniform speed. A swing rod is fixed to the top of the vertical shaft, and a sliding sleeve is slidably installed on the outer wall of the swing tube. The end of the swing rod is rotatably connected to the bottom of the sliding sleeve. The two end positions of the swing rod within the swing range are perpendicular to the swing tube, and the sliding sleeve is always located between the vertical shaft and the rotation point of the swing tube.

[0010] Optionally, a driving shaft driven by a motor is installed in the bracket of the plate frame, an incomplete gear is fixed to one end of the driving shaft close to the vertical shaft, two bevel gears are fixed to the outer wall of the vertical shaft, and when the incomplete gear rotates, it can alternately engage with the two bevel gears.

[0011] Optionally, the adjustment component includes a side groove opened on the side wall of the swing tube, and the outer wall of the swing tube located at the side groove position is rotatably installed with a transmission gear and an extrusion cam through an axle seat, the transmission gear and the extrusion cam are coaxially fixed, and the raised part of the extrusion cam can enter the side groove and contact the infusion tube, the top of the swing tube is also slidably installed with a rack, and the tooth groove of the rack is engaged with the teeth of the transmission gear, and the top of the plate frame is also rotatably installed with a connecting rod through a spacer frame, one end of the connecting rod is rotatably connected to the outer wall of the rack, and the rotation point of the swing tube is located between the rotation point of the connecting rod and the rack.

[0012] Optionally, a fixing part is fixed to the bottom of the plate frame, a circular groove is provided inside the fixing part, the end of the driving shaft away from the incomplete gear passes through the fixing part, and is rotatably connected to the through-hole of the fixing part, and the driving shaft is eccentric to the circular groove, the driving shaft section located in the fixing part is configured as a piston box, a piston rod is slidably installed through the interior of the piston box, and a piston slidably installed with the inner wall of the piston box is fixed to the outer wall of the piston rod, one-way air outlets are provided on both side outer walls of the piston box, a one-way air inlet hole connected to the piston box is provided inside the end of the driving shaft, and the top of the fixing part is connected to an air supply pipe connected to the infusion pipe.

[0013] Optionally, the liquid supply system includes a liquid storage tank and a mixing barrel installed on the top of the vehicle plate, the liquid storage tank and the mixing barrel are connected, and a rotatable stirring rod is installed in the mixing barrel, and the end of the infusion tube passing through the swing tube is connected to the mixing barrel through a water pump.

[0014] Optionally, the air delivery pipe is vertically connected to the rotation point of the swing tube and coincides with the rotation axis of the swing tube.

[0015] Optionally, a detachable filter kit is also installed at the air inlet position of the one-way air inlet hole.

[0016] Optionally, the inner wall of the gas pipe is configured as a tapered flow channel, and the cross-section of the tapered flow channel gradually decreases along the flow direction from the fixing member to the liquid delivery pipe.

[0017] Optionally, the liquid storage tank is divided into two spaces, which are used to hold water and liquid fertilizer respectively. Both spaces are connected to the mixing barrel, and a solenoid valve for controlling the flow is provided at the connection point.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention controls the variable speed swing of the swing tube through the swing component, and the adjustment component adjusts the cross-sectional area of the liquid delivery tube according to the swing position, so that the nozzle swings quickly and the flow rate is small in the middle area, and swings slowly and the flow rate is large in the edge area, thereby compensating for the amount of liquid fertilizer in the edge area. This effectively solves the problem of uneven spraying caused by the fan-shaped swing of the nozzle in traditional irrigation and fertilization devices, improves the uniformity of spraying, and ensures the consistency of crop growth.

[0020] 2. The present invention optimizes the spraying performance of water and fertilizer by introducing tiny bubbles into the infusion tube. The presence of tiny bubbles causes the water and fertilizer to form a gas-liquid mixture, which increases the contact area with the air and helps the diffusion and distribution of the water and fertilizer in the air. At the same time, the bubbles change the fluid properties of the water and fertilizer, forming smaller and more uniform droplets when sprayed, thereby enhancing the coverage effect of the spraying, preventing the precipitation and aggregation of fertilizer particles, ensuring the uniformity of the sprayed water and fertilizer mixture, and reducing the risk of nozzle clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is the front view of the present invention;

[0023] Figure 3 It is a left side view of the present invention;

[0024] Figure 4 For the present invention Figure 3 Cross-sectional view along AA;

[0025] Figure 5 For the present invention Figure 4 Cutaway perspectives and partial views;

[0026] Figure 6 For the present invention Figure 4 Cross-sectional view along BB;

[0027] Figure 7 A top view of the present invention;

[0028] Figure 8 It is a schematic diagram of the state of the oscillating tube of the present invention when it is oscillating.

[0029] In the figure: 1. Car plate; 2. Liquid storage tank; 3. Mixing barrel; 4. Plate rack; 5. Swinging pipe; 6. Nozzle; 7. Vertical axis; 8. Swinging rod; 9. Sliding sleeve; 10. Rack; 11. Side groove; 12. Extrusion cam; 13. Transmission gear; 14. Connecting rod; 15. Bevel gear; 16. Incomplete gear; 17. Driving shaft; 18. Fixing part; 19. Liquid infusion pipe; 20. Air infusion pipe; 21. Conical flow channel; 22. Circular groove; 23. Piston box; 24. Piston rod; 25. One-way air inlet hole; 26. Mixing rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1 to 8 The present invention provides a technical solution: an automatic irrigation and fertilization device for agricultural planting, comprising a vehicle body, wherein the vehicle body has a vehicle plate 1, and further comprising:

[0032] A frame 4 is fixed to the top of the vehicle plate 1. A swing tube 5 is rotatably mounted on the top of the frame 4. A liquid infusion tube 19 is passed through the interior of the swing tube 5. A nozzle 6 is mounted on the end of the swing tube 5 and communicates with the liquid infusion tube 19. The liquid infusion tube 19 is also communicated with a liquid supply system mounted on the vehicle plate 1.

[0033] The swing assembly is used to control the reciprocating swing of the swing tube 5, and the speed gradually slows down when swinging to both sides with the center of the swing range as the boundary;

[0034] The adjustment component is used to adjust the cross-sectional area of the infusion tube 19 during the swinging process, and the center of the swinging range is used as the boundary. The closer to the edge position, the smaller the cross-sectional area of the infusion tube 19.

[0035] When the fertigation device is in use, the diluted water and fertilizer are delivered to the nozzle 6 through the liquid delivery pipe 19 by the liquid supply system, and then sprayed through the nozzle 6 to achieve the purpose of integrated fertilization and irrigation.

[0036] At the same time, driven by the swing assembly, the swing tube 5 drives the nozzle 6 to swing back and forth, so that it can expand the spraying range in a fan-shaped scanning manner, such as Figure 8As shown in FIG. 1 , FIG. a shows the swing trajectory of the nozzle 6, and FIG. b shows the spraying range of the nozzle 6 during the uniform swinging process. Studies have shown that crops closer to the nozzle 6 receive an excessive amount of liquid fertilizer, while crops farther from the nozzle receive a reduced amount of liquid fertilizer due to the attenuation of the liquid fertilizer in the air. Therefore, in order to ensure a more uniform amount of liquid fertilizer received by crops within different ranges, this case further improves the above-mentioned sector scanning spraying method. The specific implementation method is as follows:

[0037] First, the swinging speed of the swinging tube 5 is controlled by the swinging assembly so that it swings at a variable speed. That is, with the center of the swing range as the boundary, the speed gradually slows down when swinging to both sides. In this way, by making the nozzle 6 swing faster in the middle area and slower on the sides, the nozzle 6 can stay on both sides for a longer time, increasing the amount of liquid fertilizer in the edge area, thereby improving the uniformity of spraying;

[0038] At the same time, the regulating assembly will also adjust the cross-sectional area of the infusion tube 19 as the position of the swing tube 5 changes, so that the cross-sectional area near the middle position is small and the flow rate is relatively reduced, while the cross-sectional area at the two sides is large and the flow rate is increased;

[0039] In this way, by combining the swing component and the adjustment component, the spraying amount at different positions can be adjusted more finely, and a compensation effect can be made on the spraying amount in the edge area to achieve regional balance, so that the range of water mist sprayed by the nozzle 6 is roughly expanded from the range shown in b to the range shown in c. In this way, as the vehicle moves, the original fan-shaped scanning spraying superposition method will be changed to an overall linear scanning spraying method, which can further reduce the fertilization difference between the middle and edge positions of the land, and further ensure the uniformity of the overall spraying.

[0040] In a further optional embodiment, an embodiment of a swing assembly is provided;

[0041] The swing assembly includes a vertical shaft 7 that is rotatably installed on the top of the plate frame 4, and the vertical shaft 7 can rotate back and forth at a uniform speed. A swing rod 8 is fixed to the top of the vertical shaft 7, and a sliding sleeve 9 is slidably installed on the outer wall of the swing tube 5. The end of the swing rod 8 is rotatably connected to the bottom of the sliding sleeve 9. The two end positions of the swing rod 8 within the swing range are both perpendicular to the swing tube 5, and the sliding sleeve 9 is always located between the rotation point of the vertical shaft 7 and the swing tube 5.

[0042] For details, please refer to Figure 4 and Figure 8 Under the drive of the external structure, the vertical shaft 7 will drive the swing rod 8 to swing back and forth, and at the same time the swing rod 8 will drive the swing tube 5 to swing back and forth through the sliding sleeve 9, and, see Figure 8, since the sliding sleeve 9 is always located between the vertical shaft 7 and the rotation point of the swing tube 5, it will only swing back and forth within the range shown by O;

[0043] Secondly, when the swing arm 8 swings toward the center of the swing range, the sliding sleeve 9 will approach the rotation point of the swing tube 5. Therefore, under the premise of uniform rotation of the swing arm 8, the swing tube 5 will accelerate its swing when it approaches the center of the range, and conversely, it will slow down its swing when it moves away from the center of the range, thereby achieving the purpose of extending the residence time of the swing tube 5 and the nozzle 6 when they are near the edge of the range, thereby achieving the effect of compensating the spraying amount of the edge part.

[0044] In a further optional embodiment, an embodiment for driving the driving shaft 17 to rotate reciprocally is provided;

[0045] A driving shaft 17 driven by a motor is installed in the bracket of the plate frame 4. An incomplete gear 16 is fixed to one end of the driving shaft 17 close to the vertical shaft 7. Two bevel gears 15 are fixed to the outer wall of the vertical shaft 7, and when the incomplete gear 16 rotates, it can alternately engage with the two bevel gears 15.

[0046] For details, please refer to Figure 4 and Figure 5 When the driving shaft 17 is driven by the motor to rotate, the incomplete gear 16 will alternately engage with the two bevel gears 15 and drive the two bevel gears 15 to rotate in opposite directions, thereby achieving the purpose of driving the vertical shaft 7 to rotate reciprocatingly.

[0047] In a further optional embodiment, an embodiment of an adjustment assembly is provided;

[0048] The adjustment component includes a side groove 11 opened on the side wall of the swing tube 5, and the outer wall of the swing tube 5 located at the position of the side groove 11 is rotatably installed with a transmission gear 13 and an extrusion cam 12 through an axle seat. The transmission gear 13 and the extrusion cam 12 are coaxially fixed, and the raised part of the extrusion cam 12 can enter the side groove 11 and contact the infusion tube 19. The top of the swing tube 5 is also slidably installed with a rack 10, and the tooth groove of the rack 10 is engaged with the teeth of the transmission gear 13. The top of the plate frame 4 is also rotatably installed with a connecting rod 14 through a spacer frame. One end of the connecting rod 14 is rotatably connected to the outer wall of the rack 10, and the rotation point of the swing tube 5 is located between the rotation point of the connecting rod 14 and the rack 10.

[0049] For details, please refer to Figure 7 and Figure 8By locating the rotation point of the oscillating tube 5 between the rotation point of the connecting rod 14 and the rack 10, it is equivalent to offsetting the rotation point of the connecting rod 14. In this way, when the oscillating tube 5 rotates toward the center during the reciprocating swing of the oscillating tube 5, the rack 10 will be pulled back by the action of the connecting rod 14, that is, it will slide toward the rotation center of the oscillating tube 5. At the same time, the engagement between the teeth and the tooth grooves will drive the transmission gear 13 to rotate, thereby driving the extrusion cam 12 to rotate, so that the convex part of the extrusion cam 12 enters the side groove 11 and squeezes the infusion tube 19, so as to achieve the purpose of reducing the cross section of the infusion tube 19 and reducing the flow rate of the infusion tube 19 at the center position.

[0050] On the contrary, when the swing tube 5 rotates toward the edge, the rack 10 will slide away from the rotation center of the swing tube 5 under the action of the connecting rod 14, thereby driving the squeezing cam 12 to rotate and gradually separate from the infusion tube 19, that is, gradually increasing its flow rate;

[0051] In this way, through the cooperation between the above structures, the flow rate of the infusion tube 19 can be adjusted in real time according to the state of the oscillating tube 5 during the reciprocating swing, thereby achieving the effect of controlling the spraying amount of the nozzle 6;

[0052] Moreover, it is worth mentioning that since the extrusion cam 12 is squeezed at the middle position of the infusion tube 19 (i.e. not the end position), not only the cross-section will decrease with the squeezing, but also the loss of kinetic energy of the water will increase due to the deformation of the inner wall of the infusion tube 19. In this way, when the nozzle 6 is at the center position of the range, not only the flow rate will decrease, but the reduction in kinetic energy of the water will also further reduce the spraying distance of the nozzle 6. In this way, the nozzle 6 at the edge position of the range not only has a large flow rate, but also a long spraying distance, while the nozzle 6 at the center position of the range has a small flow rate and a closer spraying range. In summary, the spraying range can be closer to the range shown in c. In this way, when spraying is carried out as the vehicle body moves, the uniformity of different areas can be further improved, and the growth of crops in different areas can be more balanced.

[0053] In a further optional embodiment, in order to further improve the uniformity of the water and fertilizer falling on the crops after being sprayed by the nozzle 6, an embodiment is provided that can help the water and fertilizer diffuse and distribute in the air;

[0054] A fixing part 18 is fixed to the bottom of the plate frame 4, and a circular groove 22 is provided inside the fixing part 18. The end of the driving shaft 17 away from the incomplete gear 16 passes through the fixing part 18 and is rotatably connected to the penetration point of the fixing part 18, and the driving shaft 17 is eccentric to the circular groove 22. The section of the driving shaft 17 located in the fixing part 18 is set as a piston box 23, and a piston rod 24 is slidably installed inside the piston box 23, and a piston slidably installed with the inner wall of the piston box 23 is fixed to the outer wall of the piston rod 24. One-way air outlets are provided on both sides of the outer walls of the piston box 23, and a one-way air inlet 25 connected to the piston box 23 is provided inside the end of the driving shaft 17. The top of the fixing part 18 is connected to the air supply pipe 20 connected to the infusion pipe 19.

[0055] For details, please refer to Figure 4-6 In the process of the above-mentioned active shaft 17 driving the oscillating tube 5 to swing back and forth to spray water and fertilizer through the cooperation between the gears, the active shaft 17 will also drive the piston box 23 to rotate in the circular groove 22 in the fixed part 18. Since the active shaft 17 and the circular groove 22 are eccentrically designed, as the piston box 23 rotates, one end of the piston rod 24 extending outside it will contact and slide with the circular groove 22, and drive the piston block to slide in the piston box 23. As the piston box 23 continues to rotate, the two ends of the piston rod 24 will alternately contact and slide with the inner wall of the circular groove 22, so that the piston block continues to slide back and forth in the piston box 23, and continuously inhales external air from the one-way air inlet 25, and then enters the circular groove 22 from the one-way air outlet, and finally, under the action of air pressure, is input from the air pipe 20 to the infusion pipe to form tiny bubbles.

[0056] In this way, the presence of tiny bubbles in the water and fertilizer causes the water-fertilizer mixture to form a large number of tiny gas-liquid mixtures. These tiny bubbles can carry the water and fertilizer particles together to move, increasing the contact area between the water and fertilizer and the air, and helping the diffusion and distribution of the water and fertilizer in the air. At the same time, the tiny bubbles can change the physical properties of the water-fertilizer mixture, causing it to form smaller and more uniform droplets when sprayed. The tiny droplets are easier to suspend and diffuse in the air, and can cover the surface and surrounding areas of the crops more evenly, reducing the problem of excessive or low local fertilizer concentration caused by excessively large droplets.

[0057] At the same time, tiny bubbles can also wrap fertilizer particles, making the fertilizer better dispersed in the water, preventing fertilizer particles from settling and agglomerating in the pipe or at the nozzle, thereby ensuring that the sprayed water-fertilizer mixture has good uniformity.

[0058] Furthermore, it is worth mentioning that the inner wall of the gas delivery pipe 20 is configured as a tapered flow channel 21 , and the cross section of the tapered flow channel 21 gradually decreases along the flow direction from the fixing member 18 to the liquid delivery pipe 19 .

[0059] Specific reference Figure 4-6The bubbles can be further divided and reduced by the tapered flow channel 21, so that the water fertilizer can be filled with tiny bubbles, while at the same time avoiding the bubbles in the liquid being too large to affect the continuity of the liquid flow and the uniformity of the spray shape.

[0060] In a further optional embodiment, the liquid supply system includes a liquid storage tank 2 and a mixing barrel 3 installed on the top of the vehicle plate 1, the liquid storage tank 2 and the mixing barrel 3 are connected, and a rotatable stirring rod 26 is installed in the mixing barrel 3, and one end of the infusion tube 19 passing through the swing tube 5 is connected to the mixing barrel 3 through a water pump.

[0061] The liquid storage tank 2 is divided into two spaces, which are used to hold water and liquid fertilizer respectively. Both spaces are connected to the mixing barrel 3, and a solenoid valve for controlling the flow is provided at the connection point.

[0062] Liquid supply system can be found in Figure 1-Figure 4 Water and liquid fertilizer can be stored separately through the liquid storage tank 2, and temporarily mixed through the stirring barrel 3. This not only makes it easy to control the amount of mixing, mixing as much as needed to avoid waste, but also the stirring rod 26 can make it dissolve evenly when spraying, avoiding the phenomenon of sedimentation and clogging of the nozzle 6 due to long-term standing. The transfer of liquid can be directly pumped by a water pump.

[0063] In a further optional embodiment, the air delivery pipe 20 is vertically connected to the rotation point of the oscillating tube 5 and coincides with the rotation axis of the oscillating tube 5 .

[0064] In a further optional embodiment, a detachable filter kit is also installed at the air inlet position of the one-way air inlet hole 25. By installing the filter kit, such as a filter net or a filter cartridge, external impurities can be prevented from entering the pipe and causing blockage of the nozzle 6.

[0065] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and drawings can also be directly processed according to existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so no specific description will be given here.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automated irrigation and fertilization device for agricultural planting, comprising a vehicle body, wherein the vehicle body has a vehicle plate (1), characterized in that: Also includes: A plate frame (4) is fixed on the top of the vehicle plate (1), and a swing tube (5) is rotatably installed on the top of the plate frame (4). A liquid infusion tube (19) is passed through the interior of the swing tube (5), and a nozzle (6) connected to the liquid infusion tube (19) is installed at the end of the swing tube (5), and the liquid infusion tube (19) is connected to a liquid supply system installed on the vehicle plate (1); A swing assembly, the swing assembly is used to control the reciprocating swing of the swing tube (5), and the speed gradually slows down when swinging to both sides with the center of the swing range as the boundary; An adjustment component is provided, wherein the adjustment component is used to adjust the cross-sectional area of the infusion tube (19) during the swinging process, and the cross-sectional area of the infusion tube (19) is smaller as the infusion tube (19) approaches the edge position, with the center of the swinging range as the boundary.

2. The automatic irrigation and fertilization device for agricultural planting according to claim 1, characterized in that: The swing assembly includes a vertical shaft (7) that is rotatably mounted on the top of the plate frame (4), and the vertical shaft (7) can rotate back and forth at a uniform speed. A swing rod (8) is fixed to the top of the vertical shaft (7), and a sliding sleeve (9) is slidably mounted on the outer wall of the swing tube (5). The end of the swing rod (8) is rotatably connected to the bottom of the sliding sleeve (9). Both end positions of the swing rod (8) within the swing range are perpendicular to the swing tube (5), and the sliding sleeve (9) is always located between the vertical shaft (7) and the rotation point of the swing tube (5).

3. The automatic irrigation and fertilization device for agricultural planting according to claim 2, characterized in that: A driving shaft (17) driven to rotate by a motor is installed in the bracket of the plate frame (4), an incomplete gear (16) is fixed to one end of the driving shaft (17) close to the vertical shaft (7), two bevel gears (15) are fixed to the outer wall of the vertical shaft (7), and when the incomplete gear (16) rotates, it can alternately mesh with the two bevel gears (15).

4. The automatic irrigation and fertilization device for agricultural planting according to claim 1, characterized in that: The adjustment component includes a side groove (11) provided on the side wall of the swing tube (5), and the outer wall of the swing tube (5) located at the side groove (11) is rotatably mounted with a transmission gear (13) and an extrusion cam (12) through an axle seat, the transmission gear (13) and the extrusion cam (12) are coaxially fixed, and the protruding portion of the extrusion cam (12) can enter the side groove (11) and contact the infusion tube (19), the top of the swing tube (5) is also slidably mounted with a rack (10), and the tooth groove of the rack (10) is meshed with the teeth of the transmission gear (13), the top of the plate frame (4) is also rotatably mounted with a connecting rod (14) through a spacer, one end of the connecting rod (14) is rotatably connected to the outer wall of the rack (10), and the rotation point of the swing tube (5) is located between the rotation point of the connecting rod (14) and the rack (10).

5. The automatic irrigation and fertilization device for agricultural planting according to claim 3, characterized in that: A fixing member (18) is fixed to the bottom of the plate frame (4), and a circular groove (22) is provided inside the fixing member (18). The end of the driving shaft (17) away from the incomplete gear (16) passes through the fixing member (18) and is rotatably connected to the through-hole of the fixing member (18), and the driving shaft (17) is eccentric to the circular groove (22). The driving shaft (17) section located in the fixing member (18) is set as a piston box (23), and a piston rod (24) is slidably installed inside the piston box (23), and a piston slidably installed with the inner wall of the piston box (23) is fixed to the outer wall of the piston rod (24). One-way air outlets are provided on both sides of the outer wall of the piston box (23). A one-way air inlet (25) communicating with the piston box (23) is provided inside the end of the driving shaft (17). The top of the fixing member (18) is connected to the air supply pipe (20) communicating with the infusion pipe (19).

6. The automatic irrigation and fertilization device for agricultural planting according to claim 1, characterized in that: The liquid supply system comprises a liquid storage tank (2) and a stirring barrel (3) mounted on the top of the vehicle plate (1); the liquid storage tank (2) and the stirring barrel (3) are connected, and a rotatable stirring rod (26) is installed in the stirring barrel (3); and one end of the liquid infusion tube (19) passing through the swing tube (5) is connected to the stirring barrel (3) through a water pump.

7. The automatic irrigation and fertilization device for agricultural planting according to claim 5, characterized in that: The air delivery pipe (20) is vertically connected to the rotation point of the swing pipe (5) and coincides with the rotation axis of the swing pipe (5).

8. The automatic irrigation and fertilization device for agricultural planting according to claim 5, characterized in that: A detachable filter kit is also installed at the air inlet position of the one-way air inlet hole (25).

9. The automatic irrigation and fertilization device for agricultural planting according to claim 5, characterized in that: The inner wall of the gas delivery pipe (20) is provided as a tapered flow channel (21), and the cross section of the tapered flow channel (21) gradually decreases along the flow direction from the fixing member (18) to the liquid delivery pipe (19).

10. The automatic irrigation and fertilization device for agricultural planting according to claim 6, characterized in that: The liquid storage tank (2) is divided into two spaces, which are used to hold water and liquid fertilizer respectively. Both spaces are connected to the mixing barrel (3), and a solenoid valve for controlling the flow is provided at the connection point.

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