Intelligent control device for precise application of water and fertilizer in sandy soil

Abstract

The invention relates to the technical field of fertilization equipment, in particular to an intelligent control device for precise application of water and fertilizer in sandy soil, which comprises a plurality of intelligent fertilization units, a fertilizer mixing box, a water tank, a material box, a water pump I, a water pump II, a material pump, a liquid supercharger, a controller and an operation panel, the water and nutrient probes are arranged, reasonable fertilization and irrigation can be achieved according to soil water and nutrient conditions of different depths, the peak value of water and fertilizer in a soil body is matched with growth of crop roots in different growth periods, the water and fertilizer utilization rate is increased to the maximum extent, and water and fertilizer loss is reduced; by arranging the channel in the drill bit, water and fertilizer can be applied to different depths, the water and nutrient contents of soil at different depths can be adjusted in combination with monitoring data of the water and nutrient probe, targeted fertilization according to water and nutrient deficiency conditions at different depths is realized, and the utilization efficiency of nutrients and water is improved to the greatest extent.

Description

Technical Field

[0001] The invention relates to the technical field of fertilization equipment, and in particular to an intelligent control device for precise application of water and fertilizer in sandy soil. Background Art

[0002] Sandy soil refers to soil in which the particle size of the mechanical composition of the soil is less than 0.002mm, which accounts for less than 30%, or the particle size of 0.02mm~2mm accounts for more than 50%, and the surface texture of the soil belongs to the range of sandy loam to sandy soil. Sandy soil has a high sand content, coarse particles, and large and numerous intergranular pores. Therefore, sandy soil has poor water retention, water retention, and fertilizer retention. It is easy to cause water and fertilizer loss, fast water evaporation rate, and high entropy loss, which can easily cause soil drought. The primary minerals in sandy soil are mainly quartz and feldspar, and the potential nutrient content is low, so frequent fertilization is required. In general, sandy soil performs well in drainage and air permeability, but is relatively poor in water and fertilizer retention, and belongs to medium and low-yield soil.

[0003] Therefore, how to accurately fertilize crops in sandy soil has become the key to increasing crop yields and improving crop quality. Compared with normal loamy soil, sandy soil has poor water and fertilizer retention performance. If less water and fertilizer are applied, it will lead to insufficient nutrition of crops, reducing crop yield and quality. If more water and fertilizer are applied, it will cause root burn and rot. In addition, applying a large amount of water and fertilizer is more likely to increase water and fertilizer loss, which not only increases the risk of groundwater pollution, but also causes unnecessary waste of resources and increases planting costs.

[0004] Therefore, providing a device for real-time monitoring of the nutrient status of sandy soil and implementing targeted watering and fertilization according to the water and fertilizer supply of the soil has become an urgent problem to be solved. It can also provide necessary equipment for the development of smart agriculture. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an intelligent control device for precise application of water and fertilizer in sandy soil, comprising a plurality of intelligent fertilization units, a fertilizer mixing box, a water tank, a material box, a water pump 1, a water pump 2, a material pump, a liquid booster, a controller and an operation panel; The intelligent fertilization unit comprises a shell 1, a shell 2, a shell 3, a feeding assembly, a driving assembly, a probe assembly, a telescopic assembly and a fertilization assembly, wherein the shell 2 and the shell 3 are respectively mounted on the shell 1, and the shell 3 is respectively connected to the shell 1 and the outside; The material discharge assembly comprises a main pipe and a telescopic pipe, wherein the main pipe is mounted on an inner wall of a shell, a branch pipe is arranged on the main pipe, a valve is arranged on the branch pipe, and the telescopic pipe is connected to the branch pipe; The probe assembly includes a ball screw, a ball nut, a mounting column, a second gear, a nutrient probe and a moisture probe, wherein the ball screw is mounted on the inner wall of the second housing, the ball nut is sleeved on the ball screw, the nutrient probe and the moisture probe are connected to the ball nut via the mounting column, respectively, the second gear is mounted on the ball screw, and the second gear is connected to the drive assembly; The fertilization component includes a drill bit, a drill bit cap, a motor three, an output shaft two and a gear four. The outer surface of the drill bit is provided with a spiral blade, the drill bit is provided with a gear three, a channel is provided inside the drill bit, the channel is connected to the outside, the drill bit is movably connected to the drill bit cap, the telescopic pipeline runs through the telescopic component and the drill bit cap and is connected to the channel, the drill bit cap and the motor three are respectively installed on the telescopic component, the telescopic component is fixedly connected to the shell one, the two ends of the output shaft two are respectively connected to the output end of the motor three and the gear four, the gear three is meshed with the gear four, and the telescopic component, the drill bit, the drill bit cap, the motor three, the output shaft two and the gear four are respectively located inside the shell three; The fertilizer mixing box is provided with a feed inlet, a liquid inlet and a discharge port, and a valve 2 is provided at the discharge port; the water tank is provided with a water inlet and a water outlet, the material box is provided with an inlet and an outlet, the liquid booster is respectively connected to the water pump 1 and the main pipe, the water pump 1 is connected to the discharge port, the water pump 2 is respectively connected to the liquid inlet and the water outlet, the material pump is respectively connected to the feed inlet and the outlet, and the multiple intelligent fertilization units are connected through the main pipe; The driving component, telescopic component, motor three, valve one, valve two, nutrient probe, moisture probe, water pump one, water pump two, material pump, liquid booster and operation panel are electrically connected to the controller respectively.

[0006] Preferably, a stirring assembly is also installed on the fertilizer mixing box.

[0007] Preferably, the stirring assembly includes motor four, a stirring shaft, an agitator and a fixed rod, the two ends of the stirring shaft are respectively connected to the output end of motor four and the agitator, the two ends of the fixed rod are respectively connected to the stirring shaft and the agitator, the motor four is installed on the top outside the fertilizer mixing box, and the motor four is electrically connected to the controller.

[0008] Preferably, the driving assembly includes a motor 1, an output shaft 1 and a gear 1, the two ends of the output shaft 1 are respectively connected to the output end of the motor 1 and the gear 1, and the motor 1 is installed on the inner wall of the shell 1 through a motor mounting seat 1.

[0009] Preferably, the telescopic assembly comprises a plate body 1, a plate body 2, a scissor-type connecting frame, a motor 2, a threaded rod, a plurality of guide blocks 1, a plurality of guide blocks 2, a connecting rod 1 and a connecting rod 2; the threaded rod is connected to the output end of the motor 2, the motor 2 is mounted on the plate body 1, the plate body 1 is provided with a plurality of guide grooves 1, both ends of the connecting rod 1 and the connecting rod 2 are respectively provided with guide blocks 1, the connecting rod 1 is provided with a threaded hole 1, the connecting rod 2 is provided with a threaded hole 2, the guide block 1 is installed in the guide groove 1, the threaded rod is placed in the threaded hole 1 and the threaded hole 2 at the same time, the plate body 2 is provided with a plurality of guide grooves 2, the guide block 2 is installed in the guide groove 2, the scissor-type connecting frame is movably connected to the guide block 1 and the guide block 2 respectively, the plate body 1 is fixedly connected to the shell 1, the plate body 2 is located below the plate body 1, and the drill cap and the motor 3 are respectively installed on the side of the plate body 2 where the guide groove 2 is not provided.

[0010] Preferably, a slide rail 1 is provided in the guide groove 1, a slide groove 1 is provided on the guide block 1, and the slide rail 1 is placed in the slide groove 1.

[0011] Preferably, a second slide rail is provided in the second guide groove, a second slide groove is provided on the second guide block, and the second slide rail is placed in the second slide groove.

[0012] Preferably, the plate body 1 is provided with a through hole 1, the plate body 2 is provided with a through hole 2, the drill bit cap is provided with a through hole 3, and the telescopic pipe is connected to the channel through the through hole 1, the through hole 2 and the through hole 3 in sequence.

[0013] Preferably, the drill bit is provided with a groove, the inner wall of the drill bit cap is provided with a protrusion, the drill bit is placed in the drill bit cap, and the protrusion is placed in the groove.

[0014] Preferably, a fixing column is provided on the ball nut, and the mounting column is connected to the fixing column.

[0015] The present invention has the following advantages: (1) The present invention is equipped with a water and nutrient monitoring probe, which can guide reasonable fertilization and irrigation according to the soil water and nutrient conditions at different depths, so that the peak values ​​in the water and fertilizer soil are consistent with the growth of the root system at different growth stages, thereby maximizing the water and fertilizer utilization efficiency and reducing water and fertilizer loss.

[0016] (2) The present invention can apply water and fertilizer to different depths by setting a channel in the drill bit. Combined with the data of the water and nutrient monitoring probe, the soil moisture and nutrient content at different depths of the soil can be adjusted, and targeted fertilization can be achieved according to the water and nutrient deficiency at different depths, thereby maximizing the water and nutrient utilization efficiency.

[0017] (3) The present invention is provided with a plurality of intelligent fertilization units, which can adjust the soil moisture and nutrients in different areas and depths according to different crops planted in sandy soil, thereby reducing the cost of water and fertilizer application, labor cost and time cost.

[0018] (4) The present invention has a simple structure, is easy to operate, has a low manufacturing cost, a low subsequent maintenance cost, and a low failure rate, thereby saving costs and increasing efficiency to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 This is the overall diagram of the device.

[0021] Figure 2 This is a front cross-sectional view of the intelligent fertilization unit.

[0022] Figure 3 This is a front cross-sectional view of the fertilizer mixing box.

[0023] Figure 4 This is a front cross-sectional view of the water tank and material tank.

[0024] Figure 5 It is a right side cross-sectional view of the shell.

[0025] Figure 6 It is a top view of the plate.

[0026] Figure 7 It is a three-dimensional diagram of plate body 1 and guide block 1.

[0027] Figure 8 It is a three-dimensional diagram of plate body 2 and guide block 2.

[0028] Fig. 9 This is the structural diagram of guide block one and guide block two.

[0029] Fig.10 This is a cross-sectional view of the drill bit and drill cap. DETAILED DESCRIPTION

[0030] 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 making creative work are within the scope of protection of the present invention.

[0031] Example 1 Combined with Figure 1-10 The present embodiment provides an intelligent control device for precise application of water and fertilizer in sandy soil, including multiple intelligent fertilization units 1, a fertilizer mixing box 2, a water tank 3, a material box 4, a water pump 1 5, a water pump 2 6, a material pump 7, a liquid booster 8, a controller 9 and an operation panel 10.

[0032] The intelligent fertilization unit 1 includes a housing 1 11, a housing 2 12, a housing 3 13, a feeding assembly, a driving assembly, a probe assembly, a telescopic assembly and a fertilization assembly. The housing 2 12 and the housing 3 13 are respectively mounted on the lower surface of the housing 1 11, and the housing 3 13 is respectively connected to the housing 1 11 and the outside.

[0033] The unloading assembly includes a main pipe 141 and a spring hose 142. The main pipe 141 is installed on the inner bottom wall of the shell 11 through a main pipe mounting seat 141. A branch pipe 1411 is provided on the main pipe 141. A valve 1412 is provided on the branch pipe 1411. The spring hose 142 is connected to the branch pipe 1411.

[0034] The driving assembly includes a motor 151, an output shaft 152 and a gear 153. The two ends of the output shaft 152 are respectively connected to the output end of the motor 151 and the gear 153. The motor 151 is installed on the inner bottom wall of the shell 11 through a motor mounting seat 154.

[0035] The probe assembly includes a ball screw 161, a ball nut 162, a mounting column 163, a gear 2 166, a nutrient probe 167 and a moisture probe 168. The ball screw 161 is installed on the inner wall of the shell 2 12 through a ball screw mounting seat 165. The ball nut 162 is sleeved on the ball screw 161 and is located between the ball screw mounting seats 165. A fixing column 164 is provided on the ball nut 162. The nutrient probe 167 and the moisture probe 168 are respectively connected to the fixing column 164 through the mounting column 163. The gear 2 166 is installed on the ball screw 161, and the gear 2 166 is meshed with the gear 1 153.

[0036] The telescopic assembly includes a plate body 171, a plate body 172, a scissor-type connecting frame 173, a motor 175, a threaded rod 176, a plurality of guide blocks 181, a plurality of guide blocks 182, a connecting rod 183 and a connecting rod 184. The threaded rod 176 is connected to the output end of the motor 175 and is installed on the plate body 171 through a threaded rod mounting seat 1761, and the motor 175 is installed on the plate body 1 through a motor mounting seat 177. The plate body 171 is provided with a plurality of guide grooves 1711, a slide rail 1712 is provided in the guide groove 1711, guide blocks 181 are respectively installed at both ends of the connecting rod 183 and the connecting rod 184, the guide block 181 is provided with a slide groove 1811, the connecting rod 183 is provided with a threaded hole 1831, the connecting rod 184 is provided with a threaded hole 1841, the guide block 181 is placed in the guide groove 1711, the slide rail 1712 is placed in the slide groove 1811, and the threaded rod 176 is placed in the threaded hole 1831 and the threaded hole 1841 at the same time. The plate body 172 is provided with a plurality of guide grooves 1721, the guide grooves 1721 are provided with slide rails 1722, the guide block 182 is provided with slide grooves 1821, the guide block 182 is placed in the guide grooves 1721, and the slide rails 1722 are placed in the slide grooves 1821. The scissor-type connecting frame 173 is movably connected to the guide block 181 and the guide block 182 through a pin shaft. The plate body 171 is fixedly connected to the housing 11, and the plate body 172 is located below the plate body 171.

[0037] The fertilizer application assembly includes a drill bit 191, a drill bit cap 192, a motor 3 193, an output shaft 2 194, a gear 4 195 and a counterweight 196. The outer surface of the drill bit 191 is provided with a spiral blade 1911, the drill bit 191 is provided with a gear 3 1914, the drill bit 191 is provided with a groove 1913, the drill bit 191 is provided with a channel 1912 inside, and the channel 1912 is connected to the outside. The inner wall of the drill bit cap 192 is provided with a protrusion 1922, the drill bit 191 is placed in the drill bit cap 192, and the protrusion 1922 is placed in the groove 1913. The plate body 171 is provided with a through hole 1715, the plate body 2 172 is provided with a through hole 2 1725, the drill cap 192 is provided with a through hole 3 1921, and the spring hose 142 is connected to the channel 1912 through the through hole 1715, the through hole 2 1725 and the through hole 3 1921 in sequence. The drill cap 192, the counterweight 196 and the motor 3 193 are respectively mounted on the side of the plate body 2 172 where the guide groove 2 1721 is not provided, and the two ends of the output shaft 2 194 are respectively connected to the output end of the motor 3 193 and the gear 4 195, and the gear 3 1914 and the gear 4 195 are meshed. The plate body 2 172 , the scissor-type connecting frame 173 , the motor 2 175 , the threaded rod 176 , the guide block 181 , the guide block 2 182 , the connecting rod 1 183 , the connecting rod 2 184 , the drill bit 191 , the drill bit cap 192 , the motor 3 193 , the output shaft 2 194 , the gear 4 195 and the counterweight 196 are located inside the shell 3 13 .

[0038] The mixing box 4 is provided with a stirring assembly, and the mixing box 4 is provided with a feed port 25, a liquid inlet 26 and a discharge port 27, and the discharge port 27 is provided with a valve 271. The stirring assembly includes a motor 21, a stirring shaft 22, an agitator 23 and a fixed rod 24, the two ends of the stirring shaft 22 are respectively connected to the output end of the motor 21 and the agitator 23, the two ends of the fixed rod 24 are respectively connected to the stirring shaft 22 and the agitator 23, and the motor 21 is installed on the top of the mixing box 4.

[0039] The water tank 3 is provided with a water inlet 301 and a water outlet 302, and the material box 4 is provided with an inlet 401 and an outlet 402. The liquid booster 8 is respectively connected to the water pump 1 5 and the main pipe 141, the water pump 1 5 is connected to the outlet 27, the water pump 2 6 is respectively connected to the liquid inlet 26 and the water outlet 302, and the material pump 7 is respectively connected to the feed inlet 25 and the outlet 402. The multiple intelligent fertilization units 1 are connected through the main pipe 141.

[0040] The motor 1 151, the motor 2 175, the motor 3 193, the motor 4 21, the valve 1 1412, the valve 2 271, the nutrient probe 167, the moisture probe 168, the water pump 1 5, the water pump 2 6, the material pump 7, the liquid booster 8 and the operation panel 10 are electrically connected to the controller 9 respectively.

[0041] The operating principle of the device is as follows: the starting motor 151 drives the ball screw 161 to rotate, the ball nut 162 moves linearly on the ball screw 161, and the nutrient probe 167 and the moisture probe 168 are inserted into the soil. The nutrient probe 167 measures the nutrient content at different depths in the soil and the migration speed of the fertilizer in the sandy soil, and transmits the data to the controller 9, and the moisture probe 168 measures the moisture content at different depths in the soil and the migration speed of the moisture in the sandy soil, and transmits the data to the controller 9.

[0042] The technicians program the program code into the controller 9 through the control panel 10. The controller 9 determines the peak value of water and fertilizer in the soil based on the data transmitted by the nutrient probe 167 and the moisture probe 168, and then combines the growth of the root system of the crop at different growth stages to keep the two consistent, ensuring that the water and fertilizer can meet the absorption needs of the root system.

[0043] At this time, the controller 9 starts the water pump 2 6 and the material pump 7, and transports the water in the water tank 3 and the fertilizer in the material box 4 to the fertilizer mixing box 2, starts the motor 4 21 to start stirring, opens the valve 2 271, the water pump 1 5 and the liquid booster 8, and transports the water and fertilizer to the main pipe 141, and enters the channel 1912 through the branch pipe 1411, the valve 1 1412 and the spring hose 142 in sequence, and then starts the motor 2 175 and the motor 3 193, and the motor 2 175 drives the threaded rod 176 to rotate, so that the connecting rod 1 183 and the connecting rod 2 184 are close to each other, and the scissor-type connecting frame 173 is gradually unfolded, and the plate 2 172 moves vertically downward. The motor 3 193 drives the output shaft 2 194 to rotate, and through the meshing of the gear 3 1914 and the gear 4 195, the drill cap 192 does not move, the drill 191 rotates, and gradually moves deep into the soil, so as to realize the application of water and fertilizer at different depths of the soil. Similarly, the water pump 2 6 can also be turned on separately to apply irrigation water at different depths of the soil.

[0044] The device is provided with a plurality of intelligent fertilization units 1, which can reasonably allocate irrigation water and fertilizer according to the soil nutrient and moisture conditions of crop types in different areas and depths of sandy soil, and carry out targeted irrigation and fertilization, thereby improving fertilization efficiency and resource utilization while reducing use cost, labor cost and time cost.

[0045] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent control device for precise application of water and fertilizer in sandy soil, characterized in that: It includes multiple intelligent fertilization units, a fertilizer mixing tank, a water tank, a material tank, a water pump 1, a water pump 2, a material pump, a liquid booster, a controller and an operation panel; The intelligent fertilization unit comprises a shell 1, a shell 2, a shell 3, a feeding assembly, a driving assembly, a probe assembly, a telescopic assembly and a fertilization assembly, wherein the shell 2 and the shell 3 are respectively mounted on the shell 1, and the shell 3 is respectively connected to the shell 1 and the outside; The material discharge assembly comprises a main pipe and a telescopic pipe, wherein the main pipe is mounted on an inner wall of a shell, a branch pipe is arranged on the main pipe, a valve is arranged on the branch pipe, and the telescopic pipe is connected to the branch pipe; The probe assembly includes a ball screw, a ball nut, a mounting column, a second gear, a nutrient probe and a moisture probe, wherein the ball screw is mounted on the inner wall of the second housing, the ball nut is sleeved on the ball screw, the nutrient probe and the moisture probe are connected to the ball nut via the mounting column, respectively, the second gear is mounted on the ball screw, and the second gear is connected to the drive assembly; The fertilization component includes a drill bit, a drill bit cap, a motor three, an output shaft two and a gear four. The outer surface of the drill bit is provided with a spiral blade, the drill bit is provided with a gear three, a channel is provided inside the drill bit, the channel is connected to the outside, the drill bit is movably connected to the drill bit cap, the telescopic pipeline runs through the telescopic component and the drill bit cap and is connected to the channel, the drill bit cap and the motor three are respectively installed on the telescopic component, the telescopic component is fixedly connected to the shell one, the two ends of the output shaft two are respectively connected to the output end of the motor three and the gear four, the gear three is meshed with the gear four, and the telescopic component, the drill bit, the drill bit cap, the motor three, the output shaft two and the gear four are respectively located inside the shell three; The fertilizer mixing box is provided with a feed inlet, a liquid inlet and a discharge port, and a valve 2 is provided at the discharge port; the water tank is provided with a water inlet and a water outlet, the material box is provided with an inlet and an outlet, the liquid booster is respectively connected to the water pump 1 and the main pipe, the water pump 1 is connected to the discharge port, the water pump 2 is respectively connected to the liquid inlet and the water outlet, the material pump is respectively connected to the feed inlet and the outlet, and the multiple intelligent fertilization units are connected through the main pipe; The driving component, telescopic component, motor three, valve one, valve two, nutrient probe, moisture probe, water pump one, water pump two, material pump, liquid booster and operation panel are electrically connected to the controller respectively.

2. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 1, characterized in that: The fertilizer mixing box is also provided with a stirring assembly, and the stirring assembly is electrically connected to the controller.

3. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 2, characterized in that: The stirring assembly includes a fourth motor, a stirring shaft, an agitator and a fixed rod, the two ends of the stirring shaft are respectively connected to the output end of the fourth motor and the agitator, the two ends of the fixed rod are respectively connected to the stirring shaft and the agitator, the fourth motor is installed on the top outside the fertilizer mixing box, and the fourth motor is electrically connected to the controller.

4. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 1, characterized in that: The driving assembly includes a motor 1, an output shaft 1 and a gear 1, wherein the two ends of the output shaft 1 are respectively connected to the output end of the motor 1 and the gear 1, and the motor 1 is mounted on the inner wall of the housing 1 through a motor mounting seat 1.

5. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 1, characterized in that: The telescopic assembly comprises a plate body 1, a plate body 2, a scissor-type connecting frame, a motor 2, a threaded rod, a plurality of guide blocks 1, a plurality of guide blocks 2, a connecting rod 1 and a connecting rod 2; the threaded rod is connected to the output end of the motor 2, the motor 2 is installed on the plate body 1, the plate body 1 is provided with a plurality of guide grooves 1, the two ends of the connecting rod 1 and the connecting rod 2 are respectively provided with guide blocks 1, the connecting rod 1 is provided with a threaded hole 1, the connecting rod 2 is provided with a threaded hole 2, the guide block 1 is installed in the guide groove 1, the threaded rod is placed in the threaded hole 1 and the threaded hole 2 at the same time, the plate body 2 is provided with a plurality of guide grooves 2, the guide block 2 is installed in the guide groove 2, the scissor-type connecting frame is movably connected with the guide block 1 and the guide block 2 respectively, the plate body 1 is fixedly connected with the shell 1, the plate body 2 is located below the plate body 1, and the drill cap and the motor 3 are respectively installed on the side of the plate body 2 where the guide groove 2 is not provided.

6. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 5, characterized in that: A slide rail 1 is arranged in the guide groove 1, a slide groove 1 is arranged on the guide block 1, and the slide rail 1 is placed in the slide groove 1.

7. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 5, characterized in that: A second slide rail is arranged in the second guide groove, a second slide groove is arranged on the second guide block, and the second slide rail is placed in the second slide groove.

8. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 5, characterized in that: The plate body 1 is provided with a through hole 1, the plate body 2 is provided with a through hole 2, the drill head cap is provided with a through hole 3, and the telescopic pipe is connected with the channel through the through hole 1, the through hole 2 and the through hole 3 in sequence.

9. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 1, characterized in that: The drill bit is provided with a groove, the inner wall of the drill head cap is provided with a protrusion, the drill bit is placed in the drill head cap, and the protrusion is placed in the groove.

10. The intelligent control device for precise application of water and fertilizer in sandy soil according to claim 1, characterized in that: The ball nut is provided with a fixing column, and the mounting column is connected to the fixing column.

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