Intelligent water-saving greening machine with soil humidity detection function

Abstract

The invention discloses an intelligent water-saving greening machine with a soil humidity detection function, and relates to the technical field of liquid fertilizer irrigation, the greening machine comprises a supporting device, a fertilization device, a detection device and a pressure regulating device, the supporting device is fixedly connected with the fertilization device, the detection device is connected with the supporting device, and the pressure regulating device is fixedly connected with the supporting device. The fertilizing device is communicated with the pressure regulating device through a pipeline. The supporting device serves as a main installation foundation and is used for installing other devices, the humidity and the water permeability of soil are automatically detected through the detection device, the liquid outlet amount of the fertilization device is automatically adjusted according to a detection value, the fertilization device adopts a fertilizer and irrigation water integrated application mode, intelligent water saving is conducted, and the application range is wide. The permeation efficiency of the liquid fertilizer is improved through the pressure regulating device, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of liquid fertilizer irrigation, in particular to an intelligent water-saving greening machine with soil moisture detection function. Background Art

[0002] As a major agricultural country, my country still relies more on manual labor for greening, and there are few related intelligent greening devices.

[0003] When liquid fertilizer is applied, water and fertilizer are mixed to form liquid fertilizer, which is then applied to the soil. The liquid fertilizer will automatically penetrate into the soil to complete the fertilization operation. However, this operation currently relies heavily on manual labor, which is not only cumbersome but also inefficient and easily increases operator fatigue.

[0004] In addition, when fertilizing different soils, the amount of irrigation cannot be automatically adjusted due to the different moisture levels of the soil itself and the different permeability in different places, which affects the accuracy of irrigation. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent water-saving greening machine with soil moisture detection function to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The greening machine includes a supporting device, a fertilizing device, a detecting device and a pressure regulating device. The supporting device and the fertilizing device are tightly connected, the detecting device and the supporting device are connected, the pressure regulating device and the supporting device are tightly connected, and the fertilizing device and the pressure regulating device are connected by pipelines.

[0008] The supporting device serves as the main installation basis for installing other devices. The detection device automatically detects the moisture and water permeability of the soil, and automatically adjusts the liquid output of the fertilization device according to the detection value. The fertilization device adopts an integrated application mode of fertilizer and irrigation water for intelligent water saving, thereby ensuring the accuracy of watering and fertilization, and improving the penetration efficiency of liquid fertilizer and detection efficiency through the pressure regulating device.

[0009] Furthermore, the supporting device includes a vehicle body, a mechanical arm is provided on the vehicle body, a mounting plate is provided at the output end of the mechanical arm, and the mounting plate is connected to the detection device;

[0010] The fertilization device includes a material box and a liquid injection pump, which are respectively fastened to the vehicle body, the liquid outlet of the material box is connected to the liquid inlet end pipeline of the liquid injection pump, the liquid outlet end of the liquid injection pump is connected to the pressure regulating device pipeline, the pressure regulating device includes a sealing cover, the sealing cover is fastened to the mounting plate, and the liquid outlet end of the liquid injection pump is connected to the sealing cover pipeline.

[0011] The vehicle body adopts automatic control, can be connected to the Internet, and automatically control the walking path. When the vehicle body moves to the side of the seedlings, the mechanical arm drives the mounting plate to move to the land next to the seedlings, and the mounting plate drives the sealing cover to cover the local position where fertilizer is to be applied. When applying fertilizer in small batches, the material box can adopt a double-chamber design, that is, the fertilizer and water are separated and mixed when needed; when applying fertilizer in large batches, the material box can adopt an integrated design, and the liquid is pumped from the material box by the injection pump, and the liquid fertilizer is sent to the sealing cover, and the liquid fertilizer is directed to the land through the sealing cover.

[0012] Furthermore, the detection device includes a telescopic cylinder, a ground plug and an electrode assembly, a guide groove is provided on the mounting plate, the telescopic cylinder and the mounting plate are fastened, the output end of the telescopic cylinder is transmission-connected to the ground plug, the ground plug is arranged obliquely, the size of the ground plug is arranged in descending order from high to low, the ground plug is slidably connected to the guide groove, the electrode assembly includes an upper pole piece, a lower pole piece and a detection power supply, the detection power supply is fastened to the mounting plate, the two wiring terminals of the detection power supply are electrically connected to the upper pole piece and the lower pole piece respectively, the lower pole piece is fastened to the ground plug, a guide cavity is provided on the sealing cover, the upper pole piece is placed in the guide cavity, the upper pole piece is fastened to the wall of the guide cavity through a bracket, an injection hole is provided at the upper end of the guide cavity, and the liquid outlet end of the injection pump is connected to the guide cavity through the injection hole;

[0013] During testing: the upper pole piece and the lower pole piece are arranged in the vertical direction.

[0014] When the sealing cover is set on the soil, the displacement is output through the telescopic cylinder to push the ground plug into the soil until the lower electrode moves to the bottom of the upper electrode, and then the output displacement is stopped. At this time, the upper electrode, the lower electrode and the two wiring terminals of the detection power supply are electrically connected to form an adjustment circuit. The sealing cover is inserted into the position of the soil to ensure that the upper electrode fits the upper surface of the soil. The distance between the upper and lower electrodes during detection is the measurement distance. The soil moisture detection is determined according to the type of plant to be detected. A measurement distance of 2-3 cm can be used for shallow plants. When the detection power supply is discharged, the upper and lower electrodes are connected through the water vapor in the soil. The greater the soil moisture content, the greater the conductivity, that is, when the output voltage of the detection power supply is stable, the greater the current value generated in the adjustment circuit, thereby automatically detecting the soil moisture. After the humidity detection is completed, the injection pump injects a certain amount of liquid fertilizer into the guide cavity through the injection hole. At this time, the regulating circuit remains in the on state. As the liquid fertilizer penetrates downward, when the lowest point of penetration touches the lower electrode, the conducting medium of the regulating circuit changes from water vapor to liquid fertilizer, the instantaneous conductivity increases, and the current rises rapidly. The time difference from the injection pump pumping liquid to the rapid rise of current is the penetration time. The longer the penetration time, the smaller the permeability of the soil, and the shorter the penetration time, the greater the permeability of the soil, and the more difficult it is to retain liquid fertilizer.

[0015] Furthermore, the upper pole piece, the lower pole piece and the detection power supply are electrically connected to form a regulating circuit. The detection device also includes a cut-off component, which is electrically connected to the regulating circuit. The sealing cover is provided with a cut-off channel, which cuts off the injection hole. The cut-off component is used to control the cut-off area of ​​the cut-off channel.

[0016] The upper pole piece, the lower pole piece and the detection power supply can be used to detect soil moisture and soil permeability. According to the detected soil moisture and permeability, the interception efficiency of the interception component is comprehensively adjusted to achieve intelligent water saving and ensure the uniformity and quality of fertilization. The interception channel cuts off the injection hole and controls the local flow cross section through the interception component. The smaller the flow cross section, the smaller the instantaneous flow rate.

[0017] Furthermore, the shut-off assembly includes a tension spring, a slide plate and an electromagnet. One end of the slide plate is fastened to the tension spring, and the end of the tension spring away from the slide plate is fastened to the shut-off channel. The electromagnet is located in the shut-off channel away from the end of the tension spring. The end of the slide plate close to the electromagnet is inserted into the injection hole, and the slide plate is made of a magnetic material.

[0018] One side of the tension spring is fixed on the wall of the intercepting channel, and the other side is connected to the slide plate. The slide plate is made of magnet material. The current of the input electromagnet is controlled according to the humidity detection result. When the humidity is high, the current of the input electromagnet is controlled to increase the intercepting area of ​​the slide plate and reduce the instantaneous flow rate. After the initial adjustment is completed, the permeability is determined according to the penetration time. When the permeability is high, the liquid fertilizer is easier to penetrate into the lower layer and is not easy to be retained in the upper layer. By controlling the input current of the electromagnet, the slide plate slides along the intercepting channel, thereby reducing the intercepting area and increasing the instantaneous flow rate. Under the condition of constant soil permeability, the downward penetration efficiency is constant. By increasing the instantaneous liquid fertilizer amount, the lateral infiltration area of ​​the liquid fertilizer is increased, which is convenient for shallow fertilizer retention. When performing soil moisture detection, the current generated by the adjustment circuit can be used to input the control terminal to directly control the current size of the input electromagnet. When performing permeability detection, the current of the original adjustment circuit only determines the penetration time according to the amplification speed. At this time, the current input control terminal on the adjustment circuit is only used to record the penetration time. According to the time, the control terminal inputs the current for compensation.

[0019] Further, the electromagnet is electrically connected to the regulating circuit;

[0020] When the current is cut off: the facing ends of the electromagnet and the slide plate are opposite poles.

[0021] By setting opposite-name magnetic poles, the current cross section is preliminarily adjusted after the humidity detection is completed. When the current value increases compared to the standard value, that is, when the humidity is high, the current value of the input electromagnet increases, driving the slide plate to move to one side of the electromagnet, stretching the tension spring, and reducing the current cross section, thereby performing automatic adjustment.

[0022] Furthermore, an air injection channel is provided on the sealing cover, and the air injection channel is connected to the guide cavity. The pressure regulating device also includes a booster air pipe, and the booster air pipe is connected to the air injection channel pipeline.

[0023] The booster air pipe is connected to the high-pressure air source and is connected to the diversion cavity through the air injection channel. When the permeability test is performed, as the liquid fertilizer is injected into the diversion cavity, the rated pressure is input through the booster air pipe to increase the downward penetration rate of the liquid fertilizer, thereby reducing the penetration time and improving the permeability test efficiency.

[0024] As an optimization, the ground plug includes a partition, and a breaking plate is provided at the lower end of the partition. The partition and the breaking plate have a "T"-shaped cross-section in the width direction. The partition is provided with a storage tank, and the lower pole piece is placed in the storage tank. By setting the partition, the efficiency of the lateral flow of liquid fertilizer is improved. By setting the breaking plate, the compressed part of the soil is located under the partition, ensuring the in-situ nature of the shallow soil and improving the detection accuracy. The lower pole piece is installed through the storage tank, and the wall of the storage tank is insulated to avoid affecting the detection accuracy.

[0025] As an optimization, a wedge surface is provided at the lower end of the sealing cover. By providing the wedge surface, the sealing cover makes the lower end of the sealing cover arranged with an inclined axis, thereby improving the smoothness of insertion into the soil.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the distance between the upper electrode and the lower electrode during detection is the measurement distance, the soil moisture detection is determined according to the type of plant to be detected, and a measurement distance of 2-3 cm can be used for shallow plants. When the detection power supply is discharged, the upper electrode and the lower electrode are connected through the water vapor in the soil. The greater the soil moisture content, the greater the conductivity, that is, when the output voltage of the detection power supply is stable, the greater the current value generated on the adjustment circuit, thereby automatically detecting the humidity of the soil; after the humidity detection is completed, the injection pump injects a certain amount of liquid fertilizer into the guide cavity through the injection hole, and the adjustment circuit at this time remains in the on state. As the liquid fertilizer penetrates downward, when the lowest point of penetration contacts the lower electrode, the conducting medium of the adjustment circuit changes from water vapor to liquid fertilizer, the instantaneous conductivity increases, and the electrical The flow rises extremely rapidly, and the time difference from the injection pump pumping liquid to the current rising extremely rapidly is the penetration time. The longer the penetration time, the smaller the permeability of the soil, and the shorter the penetration time, the greater the permeability of the soil, and the more difficult it is to retain liquid fertilizer; when the humidity is high, control the current input to the electromagnet to increase the interception area of ​​the slide and reduce the instantaneous flow rate. After the initial adjustment is completed, determine the permeability based on the penetration time. When the permeability is high, the liquid fertilizer is more likely to penetrate into the lower layer and is not easy to be retained in the upper layer. By controlling the input current of the electromagnet, the slide slides along the interception channel, thereby reducing the interception area and increasing the instantaneous flow rate. Under the condition of constant soil permeability, the downward penetration efficiency is constant. By increasing the instantaneous amount of liquid fertilizer and increasing the lateral infiltration area of ​​liquid fertilizer, shallow fertilizer retention is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the voltage regulating device of the present invention;

[0029] Figure 3 It is a schematic diagram of the upper pole structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the power transmission of humidity detection of the present invention;

[0031] Figure 5 It is a schematic diagram of the ground plug structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the humidity detection state structure of the present invention;

[0033] Figure 7 for Figure 6 A magnified view of a detail of the view.

[0034] In the figure: 1. supporting device; 11. vehicle body; 12. mechanical arm; 13. mounting plate; 2. fertilizing device; 21. material box; 22. injection pump; 3. detection device; 31. telescopic cylinder; 32. ground plug; 321. partition; 322. earth-breaking plate; 33. electrode assembly; 331. upper electrode piece; 332. lower electrode piece; 333. detection power supply; 34. cut-off assembly; 341. tension spring; 342. slide plate; 343. electromagnet; 4. pressure regulating device; 41. sealing cover; 411. wedge surface; 412. flow guide chamber; 413. injection hole; 414. air injection channel; 415. cut-off channel; 42. pressurized air pipe. DETAILED DESCRIPTION

[0035] 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.

[0036] Example: Figure 1-Figure 7 As shown, the present invention provides a technical solution for an intelligent water-saving greening machine with soil moisture detection.

[0037] The greening machine includes a supporting device 1, a fertilizing device 2, a detecting device 3 and a pressure regulating device 4. The supporting device 1 and the fertilizing device 2 are tightly connected, the detecting device 3 is connected to the supporting device 1, the pressure regulating device 4 is tightly connected to the supporting device 1, and the fertilizing device 2 and the pressure regulating device 4 are connected by pipeline.

[0038] The support device 1 serves as the main installation basis for installing other devices. The detection device 3 automatically detects the moisture and water permeability of the soil, and automatically adjusts the liquid output of the fertilization device 2 according to the detection value. The fertilization device 2 adopts an integrated application mode of fertilizer and irrigation water to perform intelligent water saving, thereby ensuring the accuracy of watering and fertilization. The pressure regulating device 4 is used to improve the penetration efficiency of the liquid fertilizer and the detection efficiency.

[0039] Furthermore, the supporting device 1 includes a vehicle body 11, a mechanical arm 12 is provided on the vehicle body 11, a mounting plate 13 is provided at the output end of the mechanical arm 12, and the mounting plate 13 is connected to the detection device 3;

[0040] The fertilizing device 2 includes a material box 21 and an injection pump 22, which are respectively fastened to the vehicle body 11, the liquid outlet of the material box 21 is connected to the liquid inlet end of the injection pump 22 by a pipeline, the liquid outlet end of the injection pump 22 is connected to the pressure regulating device 4 by a pipeline, and the pressure regulating device 4 includes a sealing cover 41, the sealing cover 41 is fastened to the mounting plate 13, and the liquid outlet end of the injection pump 22 is connected to the sealing cover 41 by a pipeline.

[0041] The vehicle body 11 is automatically controlled and can be networked to automatically control the walking path. When the vehicle body 11 moves to the side of the seedling, the mechanical arm 12 drives the mounting plate 13 to move to the land next to the seedling, and the mounting plate 13 drives the sealing cover 41 to cover the local position to be fertilized. When fertilizing in small batches, the material box 21 can adopt a double-chamber design, that is, the fertilizer and water are separated and mixed when needed; when fertilizing in large batches, the material box 21 can adopt an integrated design, and the liquid is pumped from the material box 21 by the injection pump 22, and the liquid fertilizer is sent into the sealing cover 41, and the liquid fertilizer is directed to the land through the sealing cover 41.

[0042] Furthermore, the detection device 3 includes a telescopic cylinder 31, a ground plug 32 and an electrode assembly 33. A guide groove is provided on the mounting plate 13. The telescopic cylinder 31 and the mounting plate 13 are fastened together. The output end of the telescopic cylinder 31 is transmission-connected to the ground plug 32. The ground plug 32 is arranged obliquely. The size of the ground plug 32 is set from high to low. The ground plug 32 is slidably connected to the guide groove. The electrode assembly 33 includes an upper pole piece 331, a lower pole piece 332 and a detection power supply 333. The detection power supply 333 and the mounting plate 13 are connected. The plate 13 is fastened and connected, the two terminals of the detection power supply 333 are electrically connected to the upper pole piece 331 and the lower pole piece 332 respectively, the lower pole piece 332 is fastened and connected to the ground plug 32, the sealing cover 41 is provided with a guide cavity 412, the upper pole piece 331 is placed in the guide cavity 412, the upper pole piece 331 is fastened and connected to the wall of the guide cavity 412 through a bracket, the upper end of the guide cavity 412 is provided with a liquid injection hole 413, and the liquid outlet end of the injection pump 22 is connected to the guide cavity 412 through the liquid injection hole 413;

[0043] During detection: the upper pole piece 331 and the lower pole piece 332 are arranged along the vertical direction.

[0044] When the sealing cover 41 is covered on the soil, the displacement is output through the telescopic cylinder 31 to push the ground plug 32 into the soil until the lower pole piece 332 moves to the bottom of the upper pole piece 331, and then the displacement output is stopped. At this time, the upper pole piece 331, the lower pole piece 332 and the two wiring terminals of the detection power supply 333 are electrically connected to form a regulating circuit. The sealing cover 41 is inserted into the position of the soil to ensure that the upper pole piece 331 fits the upper surface of the soil. The distance between the upper pole piece 331 and the lower pole piece 332 during detection is the measurement distance. The soil moisture detection is determined according to the type of plant to be detected. A measurement distance of 2-3 cm can be used for shallow plants. When the detection power supply 333 is discharged, the upper pole piece 331 and the lower pole piece 332 are connected through the water vapor in the soil. The greater the soil moisture content, the greater the conductivity, that is, when the output voltage of the detection power supply 333 is stable, the current value generated in the regulation circuit is greater, thereby automatically detecting the soil moisture. After the humidity detection is completed, the injection pump 22 injects a certain amount of liquid fertilizer into the guide cavity 412 through the injection hole 413. At this time, the regulating circuit remains in the on state. As the liquid fertilizer penetrates downward, when the lowest point of penetration contacts the lower electrode 332, the conducting medium of the regulating circuit changes from water vapor to liquid fertilizer, the instantaneous conductivity increases, and the current rises rapidly. The time difference from the injection pump 22 pumping liquid to the rapid rise of current is the penetration time. The longer the penetration time, the smaller the permeability of the soil, and the shorter the penetration time, the greater the permeability of the soil, and the less likely it is to retain liquid fertilizer.

[0045] Furthermore, the upper electrode 331, the lower electrode 332 and the detection power supply 333 are electrically connected to form a regulating circuit. The detection device 3 also includes a cut-off component 34, which is electrically connected to the regulating circuit. The sealing cover 41 is provided with a cut-off channel 415, which cuts off the injection hole 413. The cut-off component 34 is used to control the cut-off area of ​​the cut-off channel 415.

[0046] The upper pole piece 331, the lower pole piece 332 and the detection power supply 333 can be used to detect soil moisture and soil permeability. According to the detected soil moisture and permeability, the interception efficiency of the interception component 34 is comprehensively adjusted to achieve intelligent water saving and ensure the uniformity and quality of fertilization. The interception channel 415 cuts off the injection hole 413 and controls the local flow cross section through the interception component 34. The smaller the flow cross section, the smaller the instantaneous flow rate.

[0047] Furthermore, the shut-off assembly 34 includes a tensioning spring 341, a slide plate 342 and an electromagnet 343. One end of the slide plate 342 is fastened to the tensioning spring 341, and the end of the tensioning spring 341 away from the slide plate 342 is fastened to the shut-off channel 415. The electromagnet 343 is located at the end of the shut-off channel 415 away from the tensioning spring 341. The end of the slide plate 342 close to the electromagnet 343 is inserted into the injection hole 413, and the slide plate 342 is made of a magnet.

[0048] One side of the tension spring 341 is fixed on the wall of the intercepting channel 415, and the other side is connected to the slide plate 342. The slide plate 342 is made of magnet material. According to the humidity detection result, the current of the input electromagnet 343 is controlled, and the intercepting area of ​​the slide plate 342 is increased, and the instantaneous flow rate is reduced. After the preliminary adjustment is completed, the permeability is determined according to the penetration time. When the permeability is large, the liquid fertilizer is more likely to penetrate into the lower layer and is not easy to be retained in the upper layer. By controlling the input current of the electromagnet 343, the slide plate 342 slides along the intercepting channel 415, thereby reducing the intercepting area, so that the instantaneous flow rate is increased. Under the condition of constant soil permeability, the downward penetration efficiency is constant. By increasing the instantaneous liquid fertilizer amount, the lateral infiltration area of ​​the liquid fertilizer is increased, which is convenient for shallow fertilizer retention. When detecting soil moisture, the current generated by the regulating circuit can be used for input control terminals to directly control the current size of the input electromagnet 343. When conducting permeability testing, the current of the original regulating circuit only determines the penetration time based on the amplification speed. At this time, the current input control terminal on the regulating circuit is only used to record the penetration time. According to the time, the control terminal inputs the current for compensation.

[0049] Further, the electromagnet 343 is electrically connected to the regulating circuit;

[0050] When the current is cut off: the facing ends of the electromagnet 343 and the slide plate 342 are opposite magnetic poles.

[0051] By setting opposite magnetic poles, the flow cross section is preliminarily adjusted after the humidity detection is completed. When the current value increases compared to the standard value, that is, when the humidity is high, the current value input to the electromagnet 343 increases, driving the slide plate 342 to move toward the side of the electromagnet 343, stretching the tension spring 341, and reducing the flow cross section, thereby performing automatic adjustment.

[0052] Furthermore, the sealing cover 41 is provided with an air injection channel 414 , which is in communication with the flow guide cavity 412 . The pressure regulating device 4 further comprises a pressurized air pipe 42 , which is in communication with the air injection channel 414 .

[0053] The boost air pipe 42 is connected to the high-pressure air source and is connected to the guide cavity 412 through the air injection channel 414. When performing permeability testing, as the liquid fertilizer is injected into the guide cavity 412, the rated pressure is input through the boost air pipe 42 to increase the downward penetration rate of the liquid fertilizer, thereby reducing the penetration time and improving the permeability testing efficiency.

[0054] As an optimization, the ground plug 32 includes a partition 321, and a soil-breaking plate 322 is provided at the lower end of the partition 321. The width direction cross-section of the partition 321 and the soil-breaking plate 322 is "T"-shaped. A power storage tank is provided on the partition 321, and the lower pole piece 332 is placed in the power storage tank. By providing the partition 321, the lateral flow efficiency of the liquid fertilizer is improved. By providing the soil-breaking plate 322, the compressed part of the soil is located in the lower layer of the partition 321, ensuring the in-situ property of the shallow soil and improving the detection accuracy. The lower pole piece 332 is installed through the power storage tank, and the wall surface of the power storage tank is insulated to avoid affecting the detection accuracy.

[0055] As an optimization, a wedge surface 411 is provided at the lower end of the sealing cover 41. By providing the wedge surface 411, the sealing cover 41 makes the lower end of the sealing cover 41 inclined to the axis, thereby improving the smoothness of insertion into the soil.

[0056] Working principle of the present invention: the distance between the upper electrode 331 and the lower electrode 332 during detection is the measurement distance. The soil moisture detection is determined according to the type of plant to be detected. The shallow surface plant can adopt a measurement distance of 2-3 cm. When the detection power supply 333 is discharged, the upper electrode 331 and the lower electrode 332 are connected through the water vapor in the soil. The greater the soil moisture content, the greater the conductivity, that is, when the output voltage of the detection power supply 333 is stable, the greater the current value generated in the adjustment circuit, thereby automatically detecting the soil humidity; after the humidity detection is completed, the injection pump 22 injects a certain amount of liquid fertilizer into the guide cavity 412 through the injection hole 413. At this time, the adjustment circuit remains in the on state. As the liquid fertilizer penetrates downward, when the lowest point of penetration contacts the lower electrode 332, the conducting medium of the adjustment circuit changes from water vapor to liquid fertilizer, and the instantaneous conductivity increases. , the current rises extremely rapidly, and the time difference from the injection pump 22 pumping liquid to the current rising extremely rapidly is the penetration time. The longer the penetration time, the smaller the permeability of the soil, and the shorter the penetration time, the greater the permeability of the soil, and the less likely it is to retain liquid fertilizer; when the humidity is high, the current input to the electromagnet 343 is controlled to increase the intercepting area of ​​the slide plate 342 and reduce the instantaneous flow rate. After the preliminary adjustment is completed, the permeability is determined according to the penetration time. When the permeability is high, the liquid fertilizer is more likely to penetrate into the lower layer and is not easy to be retained in the upper layer. By controlling the input current of the electromagnet 343, the slide plate 342 slides along the intercepting channel 415, thereby reducing the intercepting area and increasing the instantaneous flow rate. When the soil permeability is constant, the downward penetration efficiency is constant. By increasing the instantaneous liquid fertilizer amount, the lateral infiltration area of ​​the liquid fertilizer is increased, which is convenient for shallow fertilizer retention.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An intelligent water-saving greening machine with soil moisture detection, characterized in that: The greening machine comprises a supporting device (1), a fertilizing device (2), a detecting device (3) and a pressure regulating device (4); the supporting device (1) and the fertilizing device (2) are tightly connected, the detecting device (3) and the supporting device (1) are connected, the pressure regulating device (4) and the supporting device (1) are tightly connected, and the fertilizing device (2) and the pressure regulating device (4) are connected by pipeline.

2. The intelligent water-saving greening machine with soil moisture detection according to claim 1 is characterized in that: The supporting device (1) comprises a vehicle body (11), a mechanical arm (12) is provided on the vehicle body (11), a mounting plate (13) is provided at the output end of the mechanical arm (12), and the mounting plate (13) is connected to the detection device (3); The fertilizing device (2) comprises a material box (21) and a liquid injection pump (22), the material box (21) and the liquid injection pump (22) are respectively firmly connected to the vehicle body (11), the liquid outlet of the material box (21) is connected to the liquid inlet end pipeline of the liquid injection pump (22), the liquid outlet end of the liquid injection pump (22) is connected to the pressure regulating device (4) pipeline, the pressure regulating device (4) comprises a sealing cover (41), the sealing cover (41) is firmly connected to the mounting plate (13), and the liquid outlet end of the liquid injection pump (22) is connected to the sealing cover (41) pipeline.

3. The intelligent water-saving greening machine with soil moisture detection according to claim 2 is characterized in that: The detection device (3) comprises a telescopic cylinder (31), a ground plug (32) and an electrode assembly (33); a guide groove is provided on the mounting plate (13); the telescopic cylinder (31) and the mounting plate (13) are tightly connected; the output end of the telescopic cylinder (31) and the ground plug (32) are transmission-connected; the ground plug (32) is arranged obliquely; the size of the ground plug (32) is arranged in descending order from high to low; the ground plug (32) and the guide groove are slidably connected; the electrode assembly (33) comprises an upper pole piece (331), a lower pole piece (332) and a detection power supply (333); the detection power supply (333) and the mounting plate ( 13) are tightly connected, the two wiring terminals of the detection power supply (333) are electrically connected to the upper pole piece (331) and the lower pole piece (332) respectively, the lower pole piece (332) and the ground plug (32) are tightly connected, the sealing cover (41) is provided with a guide cavity (412), the upper pole piece (331) is placed in the guide cavity (412), the upper pole piece (331) is tightly connected to the wall of the guide cavity (412) through a bracket, the upper end of the guide cavity (412) is provided with a liquid injection hole (413), and the liquid outlet end of the injection pump (22) is connected to the guide cavity (412) through the liquid injection hole (413); During detection: the upper pole piece (331) and the lower pole piece (332) are arranged along the vertical direction.

4. The intelligent water-saving greening machine with soil moisture detection according to claim 3 is characterized in that: The upper electrode (331), the lower electrode (332) and the detection power supply (333) are electrically connected to form a regulating circuit. The detection device (3) further comprises a cut-off component (34). The cut-off component (34) is electrically connected to the regulating circuit. The sealing cover (41) is provided with a cut-off channel (415). The cut-off channel (415) cuts off the injection hole (413). The cut-off component (34) is used to control the cut-off area of ​​the cut-off channel (415).

5. The intelligent water-saving greening machine with soil moisture detection according to claim 4 is characterized in that: The shut-off assembly (34) comprises a tension spring (341), a slide plate (342) and an electromagnet (343); one end of the slide plate (342) is tightly connected to the tension spring (341); one end of the tension spring (341) away from the slide plate (342) is tightly connected to the shut-off channel (415); the electromagnet (343) is located at the end of the shut-off channel (415) away from the tension spring (341); one end of the slide plate (342) close to the electromagnet (343) is inserted into the injection hole (413); and the slide plate (342) is made of a magnetic material.

6. The intelligent water-saving greening machine with soil moisture detection according to claim 5 is characterized in that: The electromagnet (343) is electrically connected to the regulating circuit; When the flow is cut off, the facing ends of the electromagnet (343) and the slide plate (342) are magnetic poles of opposite names.

7. The intelligent water-saving greening machine with soil moisture detection according to claim 6 is characterized in that: The sealing cover (41) is provided with an air injection channel (414), the air injection channel (414) is in communication with the flow guide cavity (412), and the pressure regulating device (4) further comprises a booster air pipe (42), the booster air pipe (42) is in communication with the air injection channel (414).

8. The intelligent water-saving greening machine with soil moisture detection according to claim 7 is characterized in that: The ground plug (32) comprises a partition (321), a soil-breaking plate (322) is provided at the lower end of the partition (321), the partition (321) and the soil-breaking plate (322) have a "T"-shaped cross-section in the width direction, a power storage tank is provided on the partition (321), and the lower pole piece (332) is placed in the power storage tank.

9. The intelligent water-saving greening machine with soil moisture detection according to claim 8, characterized in that: A wedge surface (411) is provided at the lower end of the sealing cover (41).

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