Intelligent agricultural mixed fertilizer spray irrigation method

Abstract

The invention discloses an intelligent agricultural mixed fertilizer spray irrigation method which comprises the following steps: S1, pipeline installation: installing and fixing a base and a branch pipeline, and enabling the distance between the base at a plurality of spray irrigation points and a crop planting surface and the distance between probes arranged on the base and the crop planting surface to be consistent; s2, humidity measurement: the probe goes deep into the soil at the sprinkling irrigation point, and the humidity information of the soil at the sprinkling irrigation point is reflected through the sinking depth of the probe; s3, spraying amount adjustment: controlling the spraying amount according to the sinking depth of the probe and a preset humidity threshold value, and dynamically adjusting the number of the water and fertilizer communication holes of the branch pipeline at the spraying point so as to realize different spraying amounts at the spraying points with different humidity; s4, water and fertilizer spray irrigation; according to the invention, the spray irrigation amount is dynamically adjusted according to different humidity information by arranging the spray-adaptive structure, so that accurate water and fertilizer supply is realized, and the accurate adjustment can avoid water and fertilizer waste, ensure that crops obtain appropriate moisture and nutrients in different growth stages, and promote healthy growth of the crops.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural sprinkler irrigation, and in particular to a smart agricultural fertilizer mixing sprinkler irrigation method. Background Art

[0002] Mixed fertilizer sprinkler irrigation technology can achieve the simultaneous application of water and fertilizer. By accurately controlling the input amount and application time of water and fertilizer, it greatly reduces the waste in traditional irrigation and fertilization methods. This technology combines water and fertilizer, effectively avoiding the problems of uneven water and fertilizer and excessive fertilizer application, thereby improving the utilization efficiency of water and fertilizer. The ultimate goal of agricultural mixed fertilizer sprinkler irrigation is to improve the utilization efficiency of water and fertilizer, reduce resource waste, optimize crop growth conditions, and achieve the goal of improving agricultural production efficiency, reducing production costs, and improving soil quality.

[0003] Chinese patent (Announcement No.: CN118383145A), this solution specifically includes a fertilizer bin and a clean water pumping device connected thereto, the clean water pumping device includes a cylinder body with a cylindrical cavity inside, and an impeller component coaxially installed in the cylinder body, and the two opposite sides of the cylinder body are respectively provided with a water inlet pipe and a water outlet pipe. When the impeller component rotates, clean water enters the cylinder body from the water inlet pipe, and is transported by the impeller component to the water outlet pipe and thrown out; a plurality of fertilizer bins are provided above the cylinder body, and when the impeller component rotates, the fertilizer bins are intermittently opened one by one, so that the fertilizer falls into the clean water in the cylinder body and mixes. The smart agricultural fertilizer mixing sprinkler irrigation system of the present invention can realize the instant use of fertilizers with clean water irrigation, ensure the uniformity and consistency of mixing, and automatically add quantitatively throughout the process, which is efficient and convenient.

[0004] The agricultural fertilizer mixing sprinkler system in the above patent can ensure the consistency of uniform mixing of water and fertilizer when in use. However, during the agricultural fertilizer mixing sprinkler process, the soil moisture of crops in different areas is different. For example, in agricultural greenhouses, due to the influence of light and ventilation factors, there are differences in the soil at different positions in the greenhouse. When the soil moisture is high, the water supply is sufficient and the plants have less demand for water. Therefore, the amount of fertilizer sprinkler should be appropriately reduced at this time. Too much fertilizer will not only cause waste, but may also lead to fertilizer loss or accumulation, resulting in incomplete absorption by crop roots, resulting in fertilizer waste. When the humidity is low, there is less water in the soil, and the plant's ability to absorb fertilizer is relatively weak. By increasing the amount of fertilizer applied, the lack of water and nutrients can be compensated to ensure normal growth of crops.

[0005] In actual applications, the existing agricultural fertilizer mixing sprinkler irrigation system is often difficult to adaptively adjust according to the spatial differences in soil moisture and the growth needs of crops, resulting in inaccurate control of the amount of water and fertilizer sprinkler irrigation. This deficiency may cause waste of fertilizer and water, or insufficient supply, and thus affect the normal growth and yield of crops. Therefore, in order to improve the efficiency of water and fertilizer utilization and ensure that the growth needs of crops are accurately met, a fertilizer mixing sprinkler irrigation method based on smart agriculture is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a smart agricultural mixed fertilizer sprinkler irrigation method, which has the advantage of adaptively adjusting the sprinkler irrigation amount according to soil moisture, and solves the problem that it is difficult to adaptively adjust the water and fertilizer sprinkler irrigation amount according to the spatial differences in soil moisture and crop growth needs.

[0007] To achieve the above object, the present invention provides the following technical solution: a smart agricultural fertilizer mixing sprinkler irrigation method, comprising the following steps: S1. Pipeline installation: Install and fix the base and branch pipes at the set multiple sprinkler points, and make the base at multiple sprinkler points and the probes set thereon consistent with the distance between the crop planting surface; S2. Humidity measurement: drive the probe to move toward the crop planting surface and apply a fixed downward force to the probe so that the probe penetrates into the soil at the sprinkler irrigation point. The sinking depth of the probe reflects the humidity information of the soil at the sprinkler irrigation point. The probe's sinking depth is proportional to the soil moisture content. A greater depth indicates higher soil moisture, and vice versa. This information will serve as the basis for subsequent sprinkler irrigation adjustments. S3, spraying volume adjustment: according to the sinking depth of the probe and the preset humidity threshold, the spraying volume is controlled, and the mesh number of the water and fertilizer connecting holes of the branch pipe at the spraying point is dynamically adjusted to achieve different spraying volumes at the spraying points with different humidity; S4. Water and fertilizer sprinkler irrigation: The twist spray assembly on the base is used to change the spraying angle and spraying mode of the cross nozzle, thereby increasing the effective coverage area of ​​the water and fertilizer sprinkler irrigation. In combination with the circular motion assembly, the horizontal orientation of the cross nozzle is changed, and then the sprinkler irrigation operation is carried out in a circular range with the base as the center.

[0008] Preferably, the smart agricultural fertilizer mixing sprinkler irrigation method comprises a base and branch pipes and a cross nozzle thereon for sprinkler irrigation of water and fertilizer, the base is provided with a probe, and the base is provided with an appropriate sprinkler structure for adjusting the sprinkler irrigation amount according to the humidity of the sprinkler irrigation point position; The spraying structure comprises a longitudinal downward extending seat arranged on a base and freely moving in a vertical direction, a probe arranged on the longitudinal downward extending seat, and a constant pressure component driving the probe to apply a fixed downward pressure force to the soil on the crop planting surface is provided on the longitudinal downward extending seat; The base is also provided with a spray-blocking assembly for adjusting the amount of spraying irrigation per unit time at the cross nozzle according to the horizontal height of the longitudinal downward extension seat, and a downward extension plate is fixedly connected to the base, and a ring-moving assembly for adjusting the horizontal direction of the cross nozzle is provided on the downward extension plate; The base is provided with a flat plate, which includes an integrally formed shaft protrusion, and the base is provided with an annular slide groove for sliding connection of the shaft protrusion, and the flat plate is provided with a twist spray assembly for increasing the spraying range of the cross nozzle.

[0009] Preferably, a threaded rod is fixedly rotated on the downward extension plate, an internal threaded tube is threadedly connected to the threaded rod, the internal threaded tube is fixedly rotated on the longitudinal downward extension seat, a blocking plate is provided on the longitudinal downward extension seat, and a receiving groove for sliding connection of the blocking plate is provided on the longitudinal downward extension seat; The longitudinal downward extending seat is provided with a corresponding seat, and the longitudinal downward extending seat is provided with a rectangular groove for the corresponding seat to be slidably connected in the vertical direction, and one end of the corresponding seat away from the longitudinal downward extending seat is fixedly connected to the probe.

[0010] Preferably, the constant pressure assembly includes a pressure spring arranged in the accommodating groove, the two ends of the pressure spring are respectively fixedly connected to the blocking plate and the longitudinal downward extension seat, and the internal threaded barrel is provided with a blocking groove corresponding to the position of the blocking plate, and the blocking plate is in the blocking groove in the initial state; The blocking plate is fixedly connected with a limiting pin on one side facing the same position seat, and the same position seat is provided with an oblique limiting groove for sliding connection of the limiting pin.

[0011] Preferably, the spray-blocking assembly comprises a side shaft sealing frame fixedly connected to the branch pipe and in gas communication with the cross nozzle, an inner sealing plate is arranged on the side shaft sealing frame, and a through groove is provided on the side shaft sealing frame for the inner sealing plate to slide through in a vertical direction, and the inner sealing plate is fixedly connected to the longitudinal downward extending seat; The inner sealing plate is in sliding contact with the inner wall of the side shaft sealing frame, and the side wall on the side where the side shaft sealing frame contacts the inner sealing plate is provided with a plurality of connecting holes communicating with the gas between the branch pipes. The plurality of connecting holes are arranged linearly in the vertical direction, and the corresponding positions of the plurality of connecting holes are provided with make-way grooves.

[0012] Preferably, the twist spray assembly includes a spline shaft that can rotate freely in the horizontal direction, the spline shaft is fixedly rotated on the base, a vertical round seat is fixedly connected to the flat plate, two groups of V-shaped twist seats that can rotate freely in the horizontal direction are fixedly rotated on the vertical round seat, and a group of V-shaped twist seats close to one side of the flat plate is coaxially fixed with the spline shaft; The vertical round seat is provided with two groups of symmetrically arranged torsion blocks, and the vertical round seat is provided with an arc-shaped through groove for sliding connection of the torsion blocks. The cross nozzle is arranged at the center position of the vertical round seat, and the four integrally formed ends of the cross nozzle are respectively fixedly rotated on the two groups of V-shaped torsion seats and the two groups of torsion blocks.

[0013] Preferably, a U-shaped seat is fixedly connected to the longitudinal downward extending seat, the spline shaft passes through the U-shaped seat and the sliding sleeve is provided with a driven gear, the driven gear is in sliding contact with the inner side wall of the U-shaped seat, the driven gear is meshingly connected with the driving gear, and the driving gear and the internal threaded cylinder are coaxially fixed.

[0014] Preferably, the annular moving assembly comprises a side plate which is rotated on the lower extension plate and is in driving connection with the spline shaft, a center plate which is coaxially fixed with the flat plate is provided on one side of the side plate, and a circular hole for the spline shaft to pass through is opened on the center plate; The side plates are fixedly connected with adjustment pins, and the center plate is provided with a plurality of adjustment plates which are slidably connected with the adjustment pins and are arranged in a ring array.

[0015] Preferably, a crescent positioning seat is coaxially fixed on the side plate, and a plurality of groups of arc positioning grooves in sliding contact with the outer peripheral surface of the crescent positioning seat are provided on the center plate. The number of the plurality of arc positioning grooves and the plurality of adjustment plates are the same and they are staggered.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes accurate water and fertilizer supply by setting up an appropriate spraying structure and dynamically adjusting the spraying amount according to different humidity information. This precise adjustment can avoid waste of water and fertilizer, ensure that crops obtain appropriate water and nutrients at different growth stages, and promote healthy growth of crops.

[0017] The present invention can effectively adjust the spraying angle and spraying mode of the cross nozzle by cooperating with the twist spray assembly and the ring motion assembly on the base, expand the effective coverage area of ​​the sprinkler irrigation, ensure that water and fertilizer can be evenly distributed to the crop root area, and ensure that the crops obtain a balanced supply of water and fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the process of the smart agricultural fertilizer mixing sprinkler irrigation method of the present invention; Figure 2 It is a schematic diagram of the components where the base of the present invention is located; Figure 3 This is a schematic diagram of the components where the flat plate of the present invention is located; Figure 4 This is a schematic diagram of the components where the longitudinal downward extending seat of the present invention is located; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 For the present invention Figure 2 Enlarged view of point B in the middle; Figure 7 This is a schematic diagram of the component where the connecting hole of the present invention is located; Figure 8This is a schematic diagram of the components where the cross nozzle of the present invention is located; Fig. 9 It is a schematic diagram of the components where the side plate of the present invention is located.

[0019] In the figure: 1. base; 2. branch pipe; 3. probe; 4. threaded rod; 5. internal threaded cylinder; 6. longitudinal downward seat; 7. baffle plate; 8. blocking groove; 9. pressure spring; 10. same position seat; 11. limit pin; 12. oblique limit groove; 13. inner sealing plate; 14. make way groove; 15. side shaft sealing frame; 16. connecting hole; 17. downward plate; 18. side plate; 19. crescent positioning seat; 20. adjustment pin; 21. center plate; 22. adjustment plate; 23. arc positioning groove; 24. spline shaft; 25. driven gear; 26. driving gear; 27. U-shaped seat; 28. flat plate; 281. shaft protrusion; 29. ​​V-shaped torsion seat; 30. cross nozzle; 31. vertical round seat; 32. torsion block; 33. arc through groove; 34. annular slide groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 9 The present invention provides a technical solution: a smart agricultural fertilizer mixing irrigation method, comprising the following steps: S1. Pipeline installation: The base 1 and the branch pipe 2 are installed and fixed at the locations of the set multiple sprinkler irrigation points, and the distance between the base 1 and the probe 3 arranged thereon at the multiple sprinkler irrigation points and the crop planting surface is consistent; S2, humidity measurement: drive the probe 3 to move toward the crop planting surface, and apply a fixed downward force to the probe 3, so that the probe 3 penetrates into the soil at the sprinkler irrigation point, and the sinking depth of the probe 3 reflects the humidity information of the soil at the sprinkler irrigation point; The sinking depth of probe 3 is proportional to the soil moisture content. A greater depth indicates higher soil moisture, whereas a lower depth indicates lower moisture. This information will serve as a basis for subsequent irrigation volume adjustments. S3, spraying amount adjustment: according to the sinking depth of the probe 3 and the preset humidity threshold, the spraying amount is controlled, and the mesh size of the water and fertilizer connecting hole 16 of the branch pipe 2 at the spraying point is dynamically adjusted to achieve different spraying amounts at the spraying points with different humidity; S4. Water and fertilizer sprinkler irrigation: The twist spray assembly provided on the base 1 is used to change the spraying angle and spraying mode of the cross nozzle 30, thereby increasing the effective coverage area of ​​the water and fertilizer sprinkler irrigation, and combined with the circular motion assembly, the horizontal orientation of the cross nozzle 30 is changed, and then the sprinkler irrigation operation in a circular range is performed with the base 1 as the center.

[0022] like Figure 1 As shown, at the set multiple sprinkler points, the base 1 and the branch pipe 2 are installed and fixed according to the design requirements. Through precise positioning, it is ensured that the base 1 of each sprinkler point and the probe 3 assembly installed above it are at a consistent distance from the crop planting surface. This design ensures that the working state of each sprinkler point matches the crop growth requirements, thereby achieving precise sprinkler control.

[0023] The probe 3 is controlled to move toward the crop planting surface, and a fixed downward force is applied to the probe 3 to make it penetrate into the soil at the sprinkler irrigation point. In the process of the probe 3 penetrating into the soil, there is a positive correlation between the insertion depth of the probe 3 and the soil moisture content. When the probe 3 sinks deeper, it indicates that the soil moisture is higher; conversely, when the probe 3 sinks shallower, it indicates that the soil moisture is lower. The moisture information of the soil in this area provides a basis for adjusting the subsequent sprinkler irrigation amount, which can effectively avoid excessive or insufficient irrigation and improve the use efficiency of water and fertilizer.

[0024] Among them, when the soil humidity is high, the moisture in the soil reduces the friction between the particles, the soil becomes softer, and the resistance when the probe 3 is inserted is smaller. On the contrary, when the soil is dry, the moisture decreases, the soil becomes more compact, and the probe 3 will feel greater resistance when inserted. Moreover, as the probe 3 gradually penetrates into the soil, the contact area between the probe 3 and the soil increases. Therefore, the resistance encountered by the probe 3 when penetrating into the soil gradually increases, and the probe 3 is subjected to a fixed downward force. When the soil resistance encountered by the probe 3 is consistent with the downward force, the position of the probe 3 will no longer change. Then, in soils with different humidity, the probe 3 sinks to different depths in the soil under the premise of the fixed downward force, and then the irrigation amount of the sprinkler point is adaptively adjusted according to the difference in its height.

[0025] Based on the soil moisture data obtained from the immersion depth of probe 3 and the preset humidity threshold, the amount of water and fertilizer sprayed at the current sprinkler point is automatically adjusted. In areas with higher humidity, the amount of sprinkler irrigation is reduced to prevent over-irrigation and water accumulation. In areas with lower humidity, the amount of sprinkler irrigation is increased to ensure that the crop roots obtain sufficient water. The spraying amount of each sprinkler irrigation point is adjusted according to the real-time soil moisture, thereby achieving accurate water and fertilizer supply in different humidity areas. This adjustment mechanism ensures that each sprinkler irrigation point obtains an accurate water-fertilizer ratio according to local humidity requirements, avoiding waste and shortage.

[0026] The twist spray assembly arranged on the base 1 can change the spraying angle and spraying mode of the cross nozzle 30, thereby expanding the spraying range of water and fertilizer and improving the spraying efficiency. By adjusting the spraying angle and spraying mode of the nozzle, the twist spray assembly ensures that water and fertilizer cover more areas and improves the uniformity of irrigation and fertilization.

[0027] In addition, the circular motion component can drive the cross nozzle 30 to rotate horizontally, change the horizontal orientation of the cross nozzle 30, and then realize the circular movement of the cross nozzle 30 in the horizontal direction. In this way, the water and fertilizer spraying process can be centered on the base 1 to form a circular spraying area in the greenhouse, ensuring comprehensive coverage of the sprinkler irrigation operation and meeting the needs of soil and crops in different locations.

[0028] One of the more preferred embodiments is a smart agricultural fertilizer mixing sprinkler irrigation method, comprising a base 1 and a branch pipe 2 and a cross nozzle 30 thereon for sprinkler irrigation of water and fertilizer, wherein a probe 3 is provided on the base 1, and an appropriate spraying structure for adjusting the sprinkler irrigation amount according to the humidity of the sprinkler irrigation point position is provided on the base 1; The spraying structure comprises a longitudinal downward extending seat 6 which is arranged on the base 1 and moves freely in the vertical direction, the probe 3 is arranged on the longitudinal downward extending seat 6, and a constant pressure component is arranged on the longitudinal downward extending seat 6 to drive the probe 3 to apply a fixed downward pressure force to the soil of the crop planting surface; The base 1 is also provided with a spray-blocking assembly for adjusting the amount of spraying per unit time at the cross nozzle 30 according to the horizontal height of the longitudinal downward extension seat 6. A downward extension plate 17 is fixedly connected to the base 1, and a ring-moving assembly for adjusting the horizontal direction of the cross nozzle 30 is provided on the downward extension plate 17. The base 1 is provided with a flat plate 28 , which includes an integrally formed shaft protrusion 281 , and an annular groove 34 for sliding connection of the shaft protrusion 281 is provided on the base 1 , and a twist spray assembly for increasing the spraying range of the cross nozzle 30 is provided on the flat plate 28 .

[0029] The downward extension plate 17 is provided with a threaded rod 4 which is fixedly rotated, and an internal threaded tube 5 is threadedly connected to the threaded rod 4. The internal threaded tube 5 is fixedly rotated on a longitudinal downward extension seat 6, and a blocking plate 7 is provided on the longitudinal downward extension seat 6, and a receiving groove for sliding connection of the blocking plate 7 is provided on the longitudinal downward extension seat 6; The longitudinal downward extending seat 6 is provided with an aligning seat 10 , and the longitudinal downward extending seat 6 is provided with a rectangular groove for the aligning seat 10 to slide and connect in the vertical direction, and one end of the aligning seat 10 away from the longitudinal downward extending seat 6 is fixedly connected to the probe 3 .

[0030] like Figure 2 and Figure 3As shown, the threaded rod 4 is driven to rotate in the horizontal direction by a motor fixed on the base 1. The threaded rod 4 is threadedly connected to the internal threaded tube 5, and the internal threaded tube 5 rotates on the longitudinal downward extension seat 6. At the same time, the longitudinal downward extension seat 6 will not rotate in the horizontal direction. When the internal threaded tube 5 is restricted by the longitudinal downward extension seat 6 and cannot rotate, the longitudinal downward extension seat 6 can be driven to move in the vertical direction through the rotation process of the threaded rod 4. At the same time, the probe 3 is arranged on the longitudinal downward extension seat 6, so the longitudinal downward extension seat 6 can be driven to be gradually inserted into the soil.

[0031] At the same time, when the downward pressure applied to the probe 3 is consistent with the soil resistance exerted on the probe 3, the longitudinal downward seat 6 and the internal threaded tube 5 are disengaged. At this time, as the threaded rod 4 continues to rotate, the internal threaded tube 5 rotates synchronously with the threaded rod 4 in the horizontal direction, and the height of the longitudinal downward seat 6 no longer changes. Therefore, the humidity of the soil will affect the displacement of the longitudinal downward seat 6 in the vertical direction. The difference in the displacement of the longitudinal downward seat 6 in the vertical direction will change the amount of irrigation at the sprinkler point per unit time.

[0032] Furthermore, the constant pressure assembly includes a pressure spring 9 arranged in the accommodating groove, the two ends of the pressure spring 9 are respectively fixedly connected to the blocking plate 7 and the longitudinal downward extension seat 6, and the internal threaded tube 5 is provided with a blocking groove 8 corresponding to the position of the blocking plate 7, and the blocking plate 7 is in the blocking groove 8 in the initial state; The blocking plate 7 is fixedly connected to a limiting pin 11 on one side facing the same position seat 10 , and the same position seat 10 is provided with an oblique limiting groove 12 for the limiting pin 11 to be slidably connected.

[0033] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, when the blocking plate 7 is in the blocking groove 8, as the threaded rod 4 rotates, the internal threaded tube 5 is restricted by the blocking plate 7 and the blocking groove 8 and cannot rotate with the threaded rod 4. Therefore, at this time, the rotation process of the threaded rod 4 will only drive the longitudinal downward extension seat 6, the same position seat 10 and the probe 3 arranged thereon to move downward, and make the probe 3 gradually penetrate into the soil.

[0034] At the same time, as the probe 3 penetrates deeper into the soil, there is friction between the probe 3 and the soil particles. Therefore, the probe 3 will be subject to frictional resistance from the soil that hinders its downward movement. As the resistance encountered by the probe 3 gradually increases, during the downward movement of the longitudinal extension seat 6, it can drive the relative displacement between the same-position seat 10 and the longitudinal extension seat 6, and then drive the limit pin 11 to slide on the same-position seat 10 through the oblique limit groove 12, so as to drive the blocking plate 7 away from the blocking groove 8, and drive the pressure spring 9 to undergo compression deformation.

[0035] Therefore, when the compression deformation of the baffle plate 7 causes the baffle plate 7 to disengage from the blocking groove 8, as the threaded rod 4 continues to rotate, the rotation process of the threaded rod 4 can drive the internal threaded tube 5 to rotate synchronously, wherein the downward pressure force of the probe 3 on the soil is the elastic potential energy of the compression spring 9 when the baffle plate 7 disengages from the blocking groove 8.

[0036] In actual use, the baffles 7 used in multiple sprinkler points are consistent. Therefore, when the soil friction resistance experienced by the probe 3 can drive the baffle 7 out of the blocking groove 8, that is, drive the pressure spring 9 to undergo compression deformation and cause the baffle 7 to be out of the blocking groove 8, the horizontal height of the longitudinal downward extension seat 6 will no longer change at this time, and the distance difference between the initial height and the stop movement of the longitudinal downward extension seat 6 can be used to adjust the sprinkler amount of the sprinkler point in unit time.

[0037] Moreover, as the blocking plate 7 disengages from the blocking groove 8, the internal threaded tube 5 subsequently rotates synchronously with the threaded rod 4. The rotation process obtained by the threaded rod 4 can drive the twist spray assembly and the annular assembly to operate, thereby ensuring that water and fertilizer cover more areas. Through the annular assembly, the water and fertilizer spraying process can be centered on the base 1 to form an annular spraying area in the greenhouse, ensuring comprehensive coverage of the sprinkler irrigation operation and meeting the needs of soil and crops in different locations.

[0038] On the basis of the embodiment of the constant pressure assembly, the spray blocking assembly includes a side shaft sealing frame 15 fixedly connected to the branch pipe 2 and gas-connected with the cross nozzle 30, an inner sealing plate 13 is provided on the side shaft sealing frame 15, and a through groove 1 is provided on the side shaft sealing frame 15 for the inner sealing plate 13 to slide through in the vertical direction, and the inner sealing plate 13 is fixedly connected to the longitudinal downward extension seat 6; The inner sealing plate 13 is in sliding contact with the inner wall of the side shaft sealing frame 15, and the side wall on the side where the side shaft sealing frame 15 contacts the inner sealing plate 13 is provided with a plurality of connecting holes 16 communicating with the gas between the branch pipes 2. The plurality of connecting holes 16 are linearly arranged in the vertical direction, and the corresponding positions of the plurality of connecting holes 16 are provided with the corresponding connecting holes 14.

[0039] like Figure 3 and Figure 7 As shown, in the initial state, the clearance grooves 14 provided on the inner sealing plate 13 correspond to the multiple groups of communicating holes 16. As the longitudinal downward extending seat 6 gradually moves downward, the longitudinal downward extending seat 6 drives the inner sealing plate 13 to move downward synchronously, and the inner sealing plate 13 and the multiple groups of communicating holes 16 move relative to each other, thereby causing the clearance grooves 14 and the multiple groups of communicating holes 16 to shift, and then partially blocking the communicating holes 16 to change the number of connecting meshes between the multiple groups of communicating holes 16. At the same time, in actual use, water and fertilizer enter the side shaft sealing frame 15 through the branch pipe 2, and are sprayed onto the crops through the cross nozzle 30 connected to the side shaft sealing frame 15.

[0040] Therefore, by changing the number of connecting holes 16 between the branch pipe 2 and the side shaft sealing frame 15, the water and fertilizer flow size between the branch pipe 2 and the side shaft sealing frame 15 can be changed. When spraying water and fertilizer, the number of connecting holes 16 that are unblocked can be changed by the horizontal height of the longitudinal downward extension seat 6 and the inner sealing plate 13, thereby achieving the purpose of adjusting the spraying amount.

[0041] On the basis of the embodiment of the spray-blocking assembly, the spray-blocking assembly includes a spline shaft 24 that can rotate freely in the horizontal direction, the spline shaft 24 rotates on the base 1, a vertical round seat 31 is fixedly connected to the flat plate 28, and two groups of V-shaped twist seats 29 that can rotate freely in the horizontal direction are rotated on the vertical round seat 31, and a group of V-shaped twist seats 29 close to one side of the flat plate 28 is coaxially fixed with the spline shaft 24; The vertical round seat 31 is provided with two groups of symmetrically arranged torsion blocks 32, and the vertical round seat 31 is provided with an arc-shaped through groove 33 for sliding connection of the torsion blocks 32. The cross nozzle 30 is arranged at the center position of the vertical round seat 31, and the four integrally formed ends of the cross nozzle 30 are respectively fixedly rotated on the two groups of V-shaped torsion seats 29 and the two groups of torsion blocks 32.

[0042] A U-shaped seat 27 is fixedly connected to the longitudinal downward extending seat 6, a spline shaft 24 passes through the U-shaped seat 27 and a driven gear 25 is slidably sleeved thereon, the driven gear 25 is in sliding contact with the inner side wall of the U-shaped seat 27, the driven gear 25 is meshingly connected with a driving gear 26, and the driving gear 26 and the internal threaded tube 5 are coaxially fixed therebetween.

[0043] like Figure 2 , Figure 4 and Figure 8 As shown, when the blocking plate 7 is disengaged from the blocking groove 8, the internal threaded tube 5 is no longer restricted by the longitudinal downward extension seat 6, and when the threaded rod 4 rotates subsequently, the internal threaded tube 5 can be driven to rotate synchronously, thereby driving the driving gear 26 coaxially arranged with the internal threaded tube 5 to rotate synchronously, and the driving gear 26 is meshed with the driven gear 25. Therefore, after the height of the longitudinal downward extension seat 6 and the probe 3 is determined, the driving gear 26, the driven gear 25 and the spline shaft 24 can be driven to rotate in the horizontal direction through the internal threaded tube 5.

[0044] At the same time, the U-shaped seat 27 is fixedly set on the longitudinal downward extension seat 6, and the driven gear 25 is slidably sleeved on the spline shaft 24. Therefore, when the height of the longitudinal downward extension seat 6 changes, the horizontal height of the driven gear 25 can be changed synchronously, and it can be ensured that the driven gear 25 is always engaged with the driving gear 26, and then when the height of the probe 3 no longer changes, the spline shaft 24 can be driven to rotate horizontally.

[0045] Among them, the spline shaft 24 and the V-shaped twist seat 29 are coaxially fixed, and the rotation process of the spline shaft 24 drives the V-shaped twist seat 29 to rotate synchronously, and then the rotation of the V-shaped twist seat 29 drives one end of the cross nozzle 30 to swing, and the two groups of end fixed axes of the cross nozzle 30 that are perpendicular to the V-shaped twist seat 29 rotate on the twist block 32, and the twist block 32 is on the vertical round seat 31 that is slidably connected through the arc-shaped through groove 33. Therefore, when the V-shaped twist seat 29 rotates, it can drive the cross nozzle 30 to twist in the vertical direction, thereby constantly changing and increasing the spraying angle of the cross nozzle 30 to achieve the purpose of increasing the spraying range.

[0046] On the basis of the embodiment of the twist spray assembly, the annular assembly includes a side plate 18 that rotates on the lower extension plate 17 and is transmission-connected to the spline shaft 24. A center plate 21 that is coaxially fixed to the flat plate 28 is provided on one side of the side plate 18. A circular hole is provided on the center plate 21 for the spline shaft 24 to pass through. The side disk 18 is fixedly connected with an adjustment pin 20 , and the center disk 21 is provided with a plurality of adjustment disks 22 which are slidably connected with the adjustment pin 20 and are arranged in a ring array.

[0047] A crescent positioning seat 19 is coaxially fixed on the side plate 18, and a plurality of groups of arc positioning grooves 23 that are in sliding contact with the outer circumference of the crescent positioning seat 19 are formed on the center plate 21. The plurality of groups of arc positioning grooves 23 and the plurality of groups of adjustment plates 22 are of the same number and are staggered in distribution.

[0048] like Figure 8 and Fig. 9 As shown, the side disk 18 is transmission-connected to the spline shaft 24, and the rotation of the spline shaft 24 can drive the torsion spray assembly to operate, and when the side disk 18 rotates, the horizontal positions of the crescent positioning seat 19 and the adjustment pin 20 thereon can be changed, and when the adjustment pin 20 slides on one group of adjustment disks 22 on the center disk 21, the center disk 21 can be driven to rotate a certain angle in the horizontal direction, wherein the center disk 21 is coaxially arranged with the flat disk 28, and the vertical round seat 31 is fixedly arranged on the flat disk 28, so that the orientation of the cross nozzle 30 during the torsion swing motion can be changed.

[0049] At the same time, when the adjusting pin 20 is separated from the adjusting disk 22, the crescent positioning seat 19 on the side disk 18 and the arc-shaped positioning groove 23 on the center disk 21 are in sliding contact, and then the rotation of the center disk 21 is limited by the setting of the crescent positioning seat 19 to prevent the center disk 21 from rotating arbitrarily under the action of external force, and, with the continuous rotation of the side disk 18, the center disk 21 and the flat-mouth disk 28 and the twist spray assembly arranged thereon can rotate intermittently, thereby achieving the purpose of annular sprinkler irrigation with the base 1 as the center.

[0050] It should be noted that the probe 3 is arranged below the base 1. The depth of the probe 3 penetrating into the soil is determined by the soil moisture at the base 1. The sinking depth of the arc-shaped through groove 33 determines the vertical displacement distance of the longitudinal downward extension seat 6, thereby adjusting the amount of sprinkler irrigation. Through the circular sprinkler irrigation method, the soil moisture below the base 1 is made more representative to ensure that the amount of sprinkler irrigation conforms to the moisture characteristics of the soil.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Smart agriculture fertilizer mixing sprinkler irrigation method, characterized in that: The following steps are involved: S1. Pipeline installation: The base (1) and the branch pipe (2) are installed and fixed at the locations of the plurality of sprinkler irrigation points, and the distance between the base (1) and the probe (3) arranged thereon at the plurality of sprinkler irrigation points and the crop planting surface is made consistent; S2, humidity measurement: driving the probe (3) to move toward the crop planting surface, and applying a fixed downward pressure force to the probe (3), so that the probe (3) penetrates into the soil at the sprinkler irrigation point, and the humidity information of the soil at the sprinkler irrigation point is reflected by the sinking depth of the probe (3); The sinking depth of the probe (3) is proportional to the soil moisture content. A greater depth indicates higher soil moisture, whereas a lower depth indicates lower moisture. This information will serve as a basis for subsequent adjustment of the sprinkler irrigation volume. S3, spraying amount adjustment: according to the sinking depth of the probe (3) and the preset humidity threshold, the spraying amount is controlled, and the mesh size of the water and fertilizer connecting hole (16) of the branch pipe (2) at the spraying point is dynamically adjusted to achieve different spraying amounts at the spraying points with different humidity; S4, water and fertilizer sprinkler irrigation: the spraying angle and spraying mode of the cross nozzle (30) are changed by a twist spray assembly arranged on the base (1), thereby increasing the effective coverage area of ​​the water and fertilizer sprinkler irrigation, and the horizontal orientation of the cross nozzle (30) is changed in combination with the ring-moving assembly, thereby performing sprinkler irrigation operations in a circular range with the position of the base (1) as the center.

2. The smart agricultural fertilizer mixing sprinkler irrigation method according to claim 1 comprises a base (1) and branch pipes (2) and a cross nozzle (30) thereon for sprinkler irrigation of water and fertilizer, characterized in that: The base (1) is provided with a probe (3), and the base (1) is provided with an appropriate spraying structure for adjusting the amount of spraying irrigation according to the humidity at the location of the spraying irrigation point.

3. The smart agricultural fertilizer mixing sprinkler irrigation method according to claim 2 is characterized in that: The spray-adapting structure comprises a longitudinal downward extension seat (6) arranged on a base (1) and freely movable in a vertical direction, a probe (3) arranged on the longitudinal downward extension seat (6), and a constant pressure component for driving the probe (3) to apply a fixed downward pressure force to the soil on the crop planting surface is provided on the longitudinal downward extension seat (6); The base (1) is also provided with a spray-blocking assembly for adjusting the amount of spraying per unit time at the cross nozzle (30) according to the horizontal height of the longitudinal downward extension seat (6); a downward extension plate (17) is fixedly connected to the base (1), and a circular moving assembly for adjusting the horizontal orientation of the cross nozzle (30) is provided on the downward extension plate (17); The base (1) is provided with a flat plate (28), the flat plate (28) comprising an integrally formed shaft protrusion (281), and the base (1) is provided with an annular slide groove (34) for sliding connection of the shaft protrusion (281), and the flat plate (28) is provided with a twist spray assembly for increasing the spraying range of the cross nozzle (30); A threaded rod (4) is fixedly rotatable on the downward extension plate (17), an internal threaded tube (5) is threadedly connected to the threaded rod (4), the internal threaded tube (5) is fixedly rotatable on the longitudinal downward extension seat (6), a blocking plate (7) is provided on the longitudinal downward extension seat (6), and a receiving groove for sliding connection of the blocking plate (7) is provided on the longitudinal downward extension seat (6); The longitudinal downward extending seat (6) is provided with a corresponding seat (10), and the longitudinal downward extending seat (6) is provided with a rectangular groove for the corresponding seat (10) to be slidably connected in the vertical direction, and one end of the corresponding seat (10) away from the longitudinal downward extending seat (6) is fixedly connected to the probe (3); The constant pressure assembly comprises a pressure spring (9) arranged in the receiving groove, the two ends of the pressure spring (9) are respectively fixedly connected to the blocking plate (7) and the longitudinal downward extension seat (6), the internal threaded cylinder (5) is provided with a blocking groove (8) at a position corresponding to the blocking plate (7), and the blocking plate (7) is in the blocking groove (8) in an initial state; A limiting pin (11) is fixedly connected to one side of the blocking plate (7) facing the same position seat (10), and an oblique limiting groove (12) for sliding connection of the limiting pin (11) is provided on the same position seat (10); The spray-blocking assembly comprises a side shaft sealing frame (15) fixedly connected to the branch pipe (2) and in gas communication with the cross nozzle (30), an inner sealing plate (13) being provided on the side shaft sealing frame (15), and a through groove (1) for the inner sealing plate (13) to slide through in a vertical direction being formed on the side shaft sealing frame (15), and the inner sealing plate (13) being fixedly connected to the longitudinal downward extending seat (6); The inner sealing plate (13) is in sliding contact with the inner wall of the side shaft sealing frame (15), and a plurality of groups of communication holes (16) for gas communication with the branch pipe (2) are provided on the side wall of the side shaft sealing frame (15) in contact with the inner sealing plate (13), the plurality of groups of communication holes (16) being arranged linearly in the vertical direction, and the plurality of groups of communication holes (16) are provided with clearance grooves (14) at positions corresponding to the plurality of groups of communication holes (16); The twist spray assembly comprises a spline shaft (24) that can rotate freely in the horizontal direction. The spline shaft (24) is fixedly rotated on the base (1). A vertical round seat (31) is fixedly connected to the flat plate (28). Two groups of V-shaped twist seats (29) that can rotate freely in the horizontal direction are fixedly rotated on the vertical round seat (31). A group of V-shaped twist seats (29) close to one side of the flat plate (28) is coaxially fixed to the spline shaft (24).

4. The smart agricultural fertilizer mixing irrigation method according to claim 3 is characterized in that: The vertical round seat (31) is provided with two groups of symmetrically arranged torsion blocks (32), and the vertical round seat (31) is provided with an arc-shaped through groove (33) for sliding connection of the torsion blocks (32). The cross nozzle (30) is arranged at the center position of the vertical round seat (31), and the four integrally formed ends of the cross nozzle (30) are respectively fixedly rotated on the two groups of V-shaped torsion seats (29) and the two groups of torsion blocks (32).

5. The smart agricultural fertilizer mixing sprinkler irrigation method according to claim 4 is characterized in that: A U-shaped seat (27) is fixedly connected to the longitudinal downward extending seat (6), the spline shaft (24) passes through the U-shaped seat (27), and the sliding sleeve is provided with a driven gear (25).

6. The smart agricultural fertilizer mixing sprinkler irrigation method according to claim 5 is characterized in that: The driven gear (25) is in sliding contact with the inner side wall of the U-shaped seat (27), the driven gear (25) is meshingly connected with the driving gear (26), and the driving gear (26) and the internal threaded cylinder (5) are coaxially fixed.

7. The smart agricultural fertilizer mixing sprinkler irrigation method according to claim 6, characterized in that: The annular moving assembly comprises a side plate (18) which is fixedly rotated on a lower extension plate (17) and is drivingly connected to a spline shaft (24); a center plate (21) which is coaxially fixed to the flat plate (28) is provided on one side of the side plate (18); and a circular hole is provided on the center plate (21) for the spline shaft (24) to pass through.

8. The smart agricultural fertilizer mixing sprinkler irrigation method according to claim 7, characterized in that: The side disk (18) is fixedly connected with an adjustment pin (20), and the center disk (21) is provided with a plurality of groups of adjustment disks (22) which are slidably connected with the adjustment pin (20) and arranged in a ring array.

9. The smart agricultural fertilizer mixing sprinkler irrigation method according to claim 8, characterized in that: A crescent positioning seat (19) is coaxially fixed on the side plate (18), and a plurality of groups of arc-shaped positioning grooves (23) are provided on the central plate (21) for sliding contact with the outer peripheral surface of the crescent positioning seat (19). The plurality of groups of arc-shaped positioning grooves (23) and the plurality of groups of positioning plates (22) are of the same number and are arranged in an interlaced manner.

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