A device for preparing and spraying a nutrient solution for navel orange cultivation

Abstract

The present application relates to navel orange planting technical field, and disclose a kind of nutrient solution preparation spraying device for navel orange planting, including stirring type stirring mechanism and gas compression mechanism, its inside is provided with the crankshaft that can rotate with the rotor of driving motor and drive stirring rod rotation and the piston plate that can move with the crankshaft and make gas pass through gas flow pipe and press into the inside of horizontal nutrient solution storage tank.Branch kinetic energy of driving motor when operating, branch kinetic energy of nutrient solution stirring and branch kinetic energy when pressurizing nutrient solution are differentiated, thereby effectively improve the effective utilization rate of total kinetic energy, to reduce equipment use cost, in addition, the device is stirred when nutrient solution, on the one hand, it is stirred using stirring rod, on the other hand, it is bubble type turbulent treatment to nutrient solution using high pressure gas required for pressurization, to further speed up stirring efficiency.

Description

Technical Field

[0001] This invention relates to the field of navel orange cultivation technology, specifically to a nutrient solution preparation and spraying device for navel orange cultivation. Background Technology

[0002] Because navel oranges have excellent health benefits, they are becoming increasingly popular, leading to a surge in their cultivation. During cultivation, nutrient solutions are sprayed onto the oranges to ensure healthy growth and yield. However, the lack of a mixing device inside the nutrient solution tank causes sedimentation over time, resulting in uneven nutrient distribution between the upper and lower layers and negatively impacting the oranges' development and growth.

[0003] To this end, Chinese Patent Publication No. CN219628346U discloses a "Nutrient Solution Preparation and Spraying Device for Navel Orange Cultivation." Its main structure includes a base plate, a storage tank mounted on top of the base plate, a stirring mechanism inside the storage tank, a pressure pump fixedly mounted on top of the base plate, a water outlet pipe fixedly connected to the inside of the pressure pump, and an atomizing nozzle mounted on the end of the water outlet pipe furthest from the pressure pump. An adjustment mechanism is located on top of the base plate. This adjustment mechanism allows the water outlet pipe and the atomizing nozzle to move up and down, thereby adjusting the spraying height of the atomizing nozzle. When spraying navel oranges at different heights, the device makes the spraying less limited by height. A reciprocating mechanism allows the atomizing nozzle to swing left and right for spraying. The combined use of the adjustment mechanism and the reciprocating mechanism allows for a wider spraying range, resulting in a more uniform spraying effect on the navel oranges.

[0004] It is obvious that the above-mentioned nutrient solution preparation and spraying device for navel orange planting relies on the kinetic energy from the pressure pump to spray the nutrient solution outward, and on the kinetic energy from the drive motor to stir the nutrient solution. Therefore, its effective utilization rate of kinetic energy is relatively low, and it will increase the cost of use. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a nutrient solution preparation and spraying device for navel orange cultivation. This device can divide the kinetic energy of the drive motor during operation into branch kinetic energy for stirring the nutrient solution and branch kinetic energy for pressurizing the nutrient solution, thereby effectively improving the utilization rate of total kinetic energy and reducing equipment operating costs. Furthermore, when stirring the nutrient solution, the device utilizes both a stirring rod and high-pressure gas required for pressurization to create a bubble-like turbulent flow effect, further accelerating the stirring efficiency and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nutrient solution preparation and spraying device for navel orange cultivation, comprising a drive motor fixedly installed in a first fixed base, a gas flow pipe, and a liquid flow hose with a spray head installed at one end; further comprising a stirring mechanism, which internally includes a horizontal nutrient solution storage tank for storing nutrient solution, a stirring rod located inside the horizontal nutrient solution storage tank and capable of stirring the nutrient solution, a jet head capable of discharging high-pressure gas into the horizontal nutrient solution storage tank, and a first liquid docking channel for discharging nutrient solution into the liquid flow hose; and a gas compression mechanism, which internally includes a crankshaft capable of rotating with the rotor of the drive motor and driving the stirring rod to rotate, and a piston plate capable of moving with the crankshaft and causing gas to be forced into the horizontal nutrient solution storage tank through the gas flow pipe.

[0007] Preferably, the stirring mechanism includes a nutrient solution storage chamber disposed inside a horizontal nutrient solution storage tank. A second fixed base is fixedly installed at each end of the horizontal nutrient solution storage tank. A first gas connection channel is provided at the top of the horizontal nutrient solution storage tank, connecting the nutrient solution storage chamber. A rotating shaft mounting hole is provided at the center of each end of the horizontal nutrient solution storage tank. A first liquid connection channel is provided at the bottom of one end of the horizontal nutrient solution storage tank, connecting the bottom area of ​​the nutrient solution storage chamber and the liquid flow hose. The stirring rod is located inside the nutrient solution storage chamber, and a horizontal rotating shaft is fixedly installed at each end. The two horizontal rotating shafts are installed inside the two rotating shaft mounting holes via bearings and sealing rings. A first coupling is fixedly installed at the end of one of the horizontal rotating shafts. A high-pressure gas pre-storage chamber is provided directly below the nutrient solution storage chamber in the horizontal nutrient solution storage tank. Multiple linear array jet heads are installed between the high-pressure gas pre-storage chamber and the nutrient solution storage chamber. A second gas connection channel is provided at one end of the horizontal nutrient solution storage tank, connecting the high-pressure gas pre-storage chamber and one end of the gas flow pipe.

[0008] Preferably, the jet nozzle is a pressure nozzle, which can prevent the water flow above from flowing downwards when not in operation.

[0009] Preferably, the gas compression mechanism includes a gas compression housing with a bottom mounting plate at the bottom. The gas compression housing has an open-top gas compression chamber inside, and a component limiting cavity at the bottom of the gas compression chamber. The bottom of the gas compression housing has a third gas connection channel and a fourth gas connection channel communicating with the external space and the side of the component limiting cavity. The third gas connection channel is connected to the other end of a gas flow pipe. A first gas check valve and a second gas check valve are respectively installed inside the third and fourth gas connection channels. The compressor housing contains a piston plate that can move axially along the gas compression chamber inside the gas compression chamber. The upper part of the piston plate is provided with a concave hemispherical movable cavity. The crankshaft is equipped with a second coupling and a third coupling at its two ends, and the second coupling is connected to the first coupling. The third coupling is fixedly connected to the rotor end of the drive motor. The crankshaft shaft is equipped with a hollow sleeve that can rotate relative to it through bearings. The outer circumference of the hollow sleeve is connected to a rotating ball head through a longitudinal movable rod. The rotating ball head is installed inside the hemispherical movable cavity.

[0010] Preferably, the No. 1 gas check valve and the No. 2 gas check valve can control the gas to enter through the No. 4 gas docking channel and flow unidirectionally into the gas flow pipe through the No. 3 gas docking channel.

[0011] Preferably, the crankshaft is a curved shaft structure consisting of a horizontal shaft structure in the middle and longitudinal shaft structures on both sides, and the hollow sleeve is mounted on the outside of the horizontal shaft structure of the crankshaft through bearings.

[0012] Preferably, the structural radius of the hemispherical movable cavity matches the structural radius of the rotating ball head, and the depth of the hemispherical movable cavity is greater than the structural radius of the rotating ball head and less than the structural diameter of the rotating ball head.

[0013] Preferably, it also includes a pneumatic control mechanism, which is internally provided with a first gas discharge port that can be installed at the top of the first gas docking channel, a movable valve plate that blocks the discharge port of the first gas discharge port and can move longitudinally, and a helical spring that generates downward elastic pressure on the movable valve plate.

[0014] Preferably, the gas pressure control mechanism includes a fifth gas docking channel that docks with a first gas docking channel. A longitudinal hollow outer shell, integrally formed with the fifth gas docking channel, is provided on one side. A longitudinal component movable cavity is provided inside the longitudinal hollow outer shell. A first gas discharge hole, connecting the bottom of the longitudinal component movable cavity and the middle cavity of the fifth gas docking channel, is provided at the bottom of the longitudinal hollow outer shell. A second gas discharge hole, connecting the external space and the top of the longitudinal component movable cavity, is provided at the top of the longitudinal component movable cavity. A movable valve plate, capable of moving axially along the longitudinal component movable cavity, is placed inside the longitudinal component movable cavity. A concave structure gas flow groove for gas flow is provided on the circumferential surface of the movable valve plate. A compressed helical spring is installed above the movable valve plate, and an annular sealing ring is embedded at the bottom of the movable valve plate.

[0015] Preferably, the thickness of the annular sealing ring is greater than the depth of the embedded groove in the movable valve plate, the structural radius of the inner ring of the annular sealing ring is greater than the structural radius of the first gas emission hole, and the structural radius of the outer ring of the annular sealing ring is less than the distance between the gas flow groove and the axis of the movable valve plate.

[0016] Compared with the prior art, the present invention provides a nutrient solution preparation and spraying device for navel orange cultivation, which has the following beneficial effects: The device can divide the kinetic energy of the drive motor into branch kinetic energy for stirring the nutrient solution and branch kinetic energy for pressurizing the nutrient solution, thereby effectively improving the utilization rate of the total kinetic energy and reducing the cost of equipment use. In addition, when stirring the nutrient solution, the device uses a stirring rod for stirring and high-pressure gas required for pressurization to create a bubble-like turbulent flow effect in the nutrient solution, thereby further accelerating the stirring efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the stirring mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the stirring mechanism in this invention; Figure 5 This is a perspective view of the gas compression mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the gas compression mechanism in this invention; Figure 7 This is a three-dimensional cross-sectional view of the air pressure control mechanism in this invention; Figure 8 This is a perspective view of the movable valve plate in this invention.

[0018] The components include: 1. Drive motor; 2. Fixed base No. 1; 3. Gas flow pipe; 4. Liquid flow hose; 5. Injector head; 6. Stirring mechanism; 61. Horizontal nutrient solution storage tank; 62. Fixed base No. 2; 63. Nutrient solution storage chamber; 64. Rotary shaft mounting hole; 65. Gas docking channel No. 1; 66. Liquid docking channel No. 1; 67. Horizontal rotating shaft; 68. Stirring rod; 69. Coupling No. 1; 610. High-pressure gas pre-storage chamber; 611. Injector head; 612. Gas docking channel No. 2; 7. Gas compression mechanism; 71. Gas compression housing; 72. Bottom mounting plate; 73. Gas compression chamber; 74. Component limiter. 75. Gas docking channel No. 3; 76. Gas docking channel No. 4; 77. Gas check valve No. 1; 78. Gas check valve No. 2; 79. Piston plate; 710. Hemispherical movable cavity; 711. Rotating ball head; 712. Longitudinal movable rod; 713. Hollow sleeve; 714. Crankshaft; 715. Coupling No. 2; 716. Coupling No. 3; 8. Air pressure control mechanism; 81. Longitudinal hollow outer shell; 82. Longitudinal component movable cavity; 83. Gas docking channel No. 5; 84. Gas discharge port No. 1; 85. Gas discharge port No. 2; 86. Moving valve plate; 87. Gas flow groove; 88. Annular sealing ring; 89. Helical spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 and Figure 2 A nutrient solution preparation and spraying device for navel orange cultivation includes a drive motor 1, a gas flow pipe 3, and a liquid flow hose 4 with a spray head 5 installed at one end, all fixedly installed in a first fixed base 2. First, the first fixed base 2, the second fixed base 62, and the bottom mounting plate 72 are fixedly installed on the surface of a mobile vehicle. Then, the first gas connection channel 65 and the fifth gas connection channel 83 are opened, and a certain amount of nutrient solution is poured into the nutrient solution storage chamber 63. Finally, the first gas connection channel 65 and the fifth gas connection channel 83 are connected to complete the preparation work before operation.

[0021] To achieve the dual mixing effect of rod stirring and gas stirring, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4A stirring mechanism 6 is required, which includes a horizontal nutrient solution storage tank 61 for storing nutrient solution, a stirring rod 68 located inside the horizontal nutrient solution storage tank 61 for stirring the nutrient solution, a jet nozzle 611 for discharging high-pressure gas into the horizontal nutrient solution storage tank 61, and a first liquid docking channel 66 for discharging nutrient solution into the liquid flow hose 4. The crankshaft 714 drives one of the horizontal rotating shafts 67 to rotate, which in turn drives the stirring rod 68 to rotate. The stirring rod 68 will produce a rod-shaped stirring and mixing effect on the nutrient solution it contacts. At the same time, high-pressure gas enters the high-pressure gas pre-storage chamber 610 through the second gas docking channel 612, and then enters the bottom of the nutrient solution in the form of microbubbles through the jet nozzle 611. Under its own buoyancy, the bubbles will move upward, and the upward-moving bubbles will create turbulence in the nutrient solution, thereby creating a gas stirring effect, thus achieving a dual stirring and mixing effect of rod stirring and gas stirring.

[0022] For details regarding the specific structure of the stirring mechanism 6, please refer to [link / reference]. Figure 3 and Figure 4 The system includes a nutrient solution storage chamber 63 located inside a horizontal nutrient solution storage tank 61. A second fixing base 62 is fixedly installed at each end of the horizontal nutrient solution storage tank 61. A first gas connection channel 65 communicating with the nutrient solution storage chamber 63 is provided at the top of the horizontal nutrient solution storage tank 61. A rotating shaft mounting hole 64 is provided at the center of each end of the horizontal nutrient solution storage tank 61. A first liquid connection channel 66 communicating with the bottom area of ​​the nutrient solution storage chamber 63 and the liquid flow hose 4 is provided at the bottom of one end of the horizontal nutrient solution storage tank 61. The stirring rod 68 is located inside the nutrient solution storage chamber 63, and a horizontal rotating shaft 67 is fixedly installed at each end. Two horizontal rotating shafts 67 are installed inside two rotating shaft mounting holes 64 via bearings and sealing rings. A coupling 69 is fixedly installed at the end of one of the horizontal rotating shafts 67. A high-pressure gas pre-storage chamber 610 is provided directly below the nutrient solution storage chamber 63 in the horizontal nutrient solution storage tank 61. Multiple linear array jet nozzles 611 are installed between the high-pressure gas pre-storage chamber 610 and the nutrient solution storage chamber 63. A second gas docking channel 612 is provided at one end of the horizontal nutrient solution storage tank 61, which connects the high-pressure gas pre-storage chamber 610 and one end of the gas flow pipe 3. The jet nozzles 611 are pressure nozzles, which can prevent the water above from flowing downwards when not in operation.

[0023] To utilize drive motor 1 to generate a pressure supply effect, please refer to... Figure 1 , Figure 2 , Figure 5 and Figure 6A gas compression mechanism 7 needs to be installed, which contains a crankshaft 714 that rotates with the rotor of the drive motor 1 and drives the stirring rod 68 to rotate, and a piston plate 79 that moves with the crankshaft 714 and forces gas through the gas flow pipe 3 into the horizontal nutrient solution storage tank 61. When the drive motor 1 is started, the rotor will drive the crankshaft 714 to rotate. At this time, the longitudinal moving rod 712 will drive the piston plate 79 to reciprocate inside the gas compression chamber 73. With the cooperation of the first gas check valve 77 and the second gas check valve 78, the external gas will be continuously compressed into the high-pressure gas pre-storage chamber 610 and finally enter the nutrient solution storage chamber 63, forming a high-pressure area. The high-pressure area will give the nutrient solution a certain pressure. At this time, the spray head 5 can be turned on to spray the navel orange leaves, thereby using the drive motor 1 to generate a pressure supply effect.

[0024] For details regarding the specific structure of the gas compression mechanism 7, please refer to [link / reference]. Figure 5 and Figure 6The system includes a gas compression housing 71 with a bottom mounting plate 72 at the bottom. Inside the gas compression housing 71 is a gas compression chamber 73 with an open top. At the bottom of the gas compression chamber 73 is a component limiting cavity 74. At the bottom of the gas compression housing 71 are two gas connection channels 75 and 76, connecting the external space and the side of the component limiting cavity 74. The third gas connection channel 75 is connected to the other end of the gas flow pipe 3. A first gas check valve 77 and a second gas check valve 78 are respectively installed inside the third gas connection channel 75 and the fourth gas connection channel 76. Inside the gas compression chamber 73, a piston plate 79 capable of moving axially along the gas compression chamber 73 is placed in the gas compression housing 71. The upper part of the piston plate 79 has a concave hemispherical movable cavity 710. A second coupling 715 and a third coupling 716 are respectively installed at both ends of the crankshaft 714, and the second coupling 715 is connected to the first coupling. The coupling 69 is connected, and the third coupling 716 is fixedly connected to the rotor end of the drive motor 1. The shaft of the crankshaft 714 is mounted with a hollow sleeve 713 that can rotate relative to it through bearings. The outer circumference of the hollow sleeve 713 is connected to a rotating ball head 711 through a longitudinal movable rod 712. The rotating ball head 711 is installed inside the hemispherical movable cavity 710. The first gas check valve 77 and the second gas check valve 78 can control the gas to enter through the fourth gas docking channel 76 and flow unidirectionally into the gas flow pipe 3 through the third gas docking channel 75. The crankshaft 714 is a curved shaft structure consisting of a horizontal shaft structure in the middle and longitudinal shaft structures on both sides. The hollow sleeve 713 is installed outside the horizontal shaft structure of the crankshaft 714 through bearings. The structural radius of the hemispherical movable cavity 710 matches the structural radius of the rotating ball head 711, and the depth of the hemispherical movable cavity 710 is greater than the structural radius of the rotating ball head 711 and less than the structural diameter of the rotating ball head 711.

[0025] To control the maximum gas pressure inside the nutrient solution storage chamber 63 and prevent damage to the equipment due to excessive gas pressure, please refer to [link to relevant documentation]. Figure 1 , Figure 2 , Figure 7 and Figure 8A pressure control mechanism 8 needs to be installed, which includes a first gas discharge port 84 that can be installed at the top of the first gas connection channel 65, a movable valve plate 86 that blocks the discharge port of the first gas discharge port 84 and can move longitudinally, and a helical spring 89 that exerts downward elastic pressure on the movable valve plate 86. The gas inside the nutrient solution storage chamber 63 will exert an upward force on the movable valve plate 86. When the force is greater than the elastic pressure of the helical spring 89, the helical spring 89 will be compressed, and the movable valve plate 86 will move upward. At this time, the gas will flow upward through the movement gap and then be released outward through the second gas discharge port 85, thereby controlling the maximum gas pressure inside the nutrient solution storage chamber 63 and preventing excessive gas pressure from damaging the equipment.

[0026] For details regarding the specific structure of the air pressure control mechanism 8, please refer to [link / reference]. Figure 7 and Figure 8 This includes a fifth gas docking channel 83 that docks with a first gas docking channel 65. A longitudinal hollow outer shell 81, integrally formed with the fifth gas docking channel 83, is provided on one side. A longitudinal component movable cavity 82 is provided inside the longitudinal hollow outer shell 81. A first gas exhaust port 84, connecting the bottom of the longitudinal component movable cavity 82 and the central cavity of the fifth gas docking channel 83, is provided at the bottom of the longitudinal hollow outer shell 81. A second gas exhaust port 85, connecting the external space and the top of the longitudinal component movable cavity 82, is provided at the top of the longitudinal hollow outer shell 81. A component capable of moving longitudinally... A movable valve plate 86 moves axially toward the movable cavity 82 of the component. The circumferential surface of the movable valve plate 86 is provided with a concave structure for gas flow groove 87 for gas flow. A compressed helical spring 89 is installed above the movable valve plate 86. An annular sealing ring 88 is embedded at the bottom of the movable valve plate 86. The thickness of the annular sealing ring 88 is greater than the embedding groove depth in the movable valve plate 86. The structural radius of the inner ring of the annular sealing ring 88 is greater than the structural radius of the first gas discharge hole 84, and the structural radius of the outer ring of the annular sealing ring 88 is less than the distance between the gas flow groove 87 and the axis of the movable valve plate 86.

[0027] In use, the No. 1 fixed base 2, the No. 2 fixed base 62, and the bottom mounting plate 72 are fixedly installed on the surface of the mobile vehicle. Then, the No. 1 gas docking channel 65 and the No. 5 gas docking channel 83 are opened, and a measured amount of nutrient solution is poured into the nutrient solution storage chamber 63. Then, the No. 1 gas docking channel 65 and the No. 5 gas docking channel 83 are docked. The drive motor 1 is started, and the rotor drives the crankshaft 714 to rotate. At this time, the longitudinal moving rod 712 drives the piston plate 79 to reciprocate inside the gas compression chamber 73. With the cooperation of the No. 1 gas check valve 77 and the No. 2 gas check valve 78, the crankshaft 714 drives one of the horizontal rotating shafts 67. The rotation of the nozzle causes the stirring rod 68 to rotate, which in turn creates a rod-shaped stirring and mixing effect on the nutrient solution it comes into contact with. At the same time, high-pressure gas enters the high-pressure gas pre-storage chamber 610 through the second gas docking channel 612, and then enters the bottom of the nutrient solution in the form of tiny bubbles through the jet nozzle 611. Under its own buoyancy, the bubbles move upward, and the upward-moving bubbles create turbulence in the nutrient solution, thus creating a gas stirring effect. Finally, the gas accumulates in the nutrient solution storage chamber 63, forming a high-pressure area. The high-pressure area gives the nutrient solution a certain pressure. At this time, the jet nozzle 5 can be turned on to spray the navel orange leaves.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nutrient solution preparation and spraying device for navel orange cultivation, comprising a drive motor (1) fixedly installed in a first fixed base (2), a gas flow pipe (3), and a liquid flow hose (4) with a spray head (5) installed at one end, characterized in that: It also includes, The stirring mechanism (6) is equipped with a horizontal nutrient solution storage tank (61) for storing nutrient solution, a stirring rod (68) located inside the horizontal nutrient solution storage tank (61) and capable of stirring the nutrient solution, a jet head (611) capable of discharging high-pressure gas into the horizontal nutrient solution storage tank (61), and a first liquid docking channel (66) for discharging nutrient solution into the liquid flow hose (4). And a gas compression mechanism (7), which is equipped with a crankshaft (714) that can rotate with the rotor of the drive motor (1) and drive the stirring rod (68) to rotate, and a piston plate (79) that can move with the crankshaft (714) and cause the gas to be pressed into the horizontal nutrient solution storage tank (61) through the gas flow pipe (3).

2. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 1, characterized in that: The stirring mechanism (6) includes a nutrient solution storage chamber (63) disposed inside a horizontal nutrient solution storage tank (61). A second fixed base (62) is fixedly installed at both ends of the horizontal nutrient solution storage tank (61). A first gas connection channel (65) communicating with the nutrient solution storage chamber (63) is provided at the top of the horizontal nutrient solution storage tank (61). A rotating shaft mounting hole (64) is provided at the center of both ends of the horizontal nutrient solution storage tank (61). A first liquid connection channel (66) communicating with the bottom area of ​​the nutrient solution storage chamber (63) and the liquid flow hose (4) is provided at the bottom of one end of the horizontal nutrient solution storage tank (61). The stirring rod (68) is located in the nutrient solution storage chamber (63). Inside the 3), a horizontal rotating shaft (67) is fixedly installed at each end. The two horizontal rotating shafts (67) are installed inside the two rotating shaft mounting holes (64) through bearings and sealing rings. A No. 1 coupling (69) is fixedly installed at the end of one of the horizontal rotating shafts (67). A high-pressure gas pre-storage chamber (610) is provided directly below the nutrient solution storage chamber (63). Multiple linear array jet heads (611) are installed between the high-pressure gas pre-storage chamber (610) and the nutrient solution storage chamber (63). A No. 2 gas docking channel (612) is provided at one end of the horizontal nutrient solution storage tank (61) to connect the high-pressure gas pre-storage chamber (610) and one end of the gas flow pipe (3).

3. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 2, characterized in that: The jet head (611) is a pressure nozzle, which can prevent the water flow above from flowing downwards when it is not in operation.

4. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 3, characterized in that: The gas compression mechanism (7) includes a gas compression housing (71) with a bottom mounting plate (72) at the bottom. The gas compression housing (71) has a gas compression chamber (73) with an open top. A component limiting chamber (74) is located at the bottom of the gas compression chamber (73). The bottom of the gas compression housing (71) has a third gas connection channel (75) and a fourth gas connection channel (76) connecting the external space and the side of the component limiting chamber (74). The third gas connection channel (75) is connected to the other end of the gas flow pipe (3). A first gas check valve (77) and a second gas check valve (78) are respectively installed inside the third gas connection channel (75) and the fourth gas connection channel (76). The gas compression housing (71) is located at the gas pressure... Inside the compression chamber (73) is a piston plate (79) that can move axially along the gas compression chamber (73). The upper part of the piston plate (79) is provided with a concave hemispherical movable cavity (710). The crankshaft (714) is equipped with a second coupling (715) and a third coupling (716) at its two ends respectively. The second coupling (715) is connected to the first coupling (69). The third coupling (716) is fixedly connected to the rotor end of the drive motor (1). The shaft of the crankshaft (714) is equipped with a hollow sleeve (713) that can rotate relative to it through a bearing. The outer circumference of the hollow sleeve (713) is connected to a rotating ball head (711) through a longitudinal movable rod (712). The rotating ball head (711) is installed inside the hemispherical movable cavity (710).

5. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 4, characterized in that: The first gas check valve (77) and the second gas check valve (78) can control the gas to enter through the fourth gas docking channel (76) and flow unidirectionally into the gas flow pipe (3) through the third gas docking channel (75).

6. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 5, characterized in that: The crankshaft (714) is a curved shaft structure consisting of a horizontal shaft structure in the middle and longitudinal shaft structures on both sides, and the hollow sleeve (713) is installed outside the horizontal shaft structure of the crankshaft (714) through bearings.

7. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 6, characterized in that: The structural radius of the hemispherical movable cavity (710) matches the structural radius of the rotating ball head (711), and the depth of the hemispherical movable cavity (710) is greater than the structural radius of the rotating ball head (711) and less than the structural diameter of the rotating ball head (711).

8. A nutrient solution preparation and spraying device for navel orange cultivation according to any one of claims 2-7, characterized in that: It also includes a gas pressure control mechanism (8), which is equipped with a first gas discharge hole (84) that can be installed at the top of the first gas docking channel (65), a movable valve plate (86) that blocks the discharge port of the first gas discharge hole (84) and can move longitudinally, and a helical spring (89) that generates downward elastic pressure on the movable valve plate (86).

9. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 8, characterized in that: The pressure control mechanism (8) includes a fifth gas docking channel (83) that docks with the first gas docking channel (65). A longitudinal hollow shell (81) integrally formed with the fifth gas docking channel (83) is provided on one side. A longitudinal component movable cavity (82) is provided inside the longitudinal hollow shell (81). A first gas discharge port (84) connecting the bottom of the longitudinal component movable cavity (82) and the central cavity of the fifth gas docking channel (83) is provided at the bottom of the longitudinal hollow shell (81). The top of the device is provided with a second gas discharge hole (85) that connects the external space and the top of the longitudinal component movable cavity (82). Inside the longitudinal component movable cavity (82), there is a movable valve plate (86) that can move along the axial direction of the longitudinal component movable cavity (82). The circumferential surface of the movable valve plate (86) is provided with a concave structure and a gas flow groove (87) for gas flow. A helical spring (89) in a compressed state is installed above the movable valve plate (86). An annular sealing ring (88) is embedded at the bottom of the movable valve plate (86).

10. The nutrient solution preparation and spraying device for navel orange cultivation according to claim 9, characterized in that: The thickness of the annular sealing ring (88) is greater than the depth of the embedded groove in the movable valve plate (86), the structural radius of the inner ring of the annular sealing ring (88) is greater than the structural radius of the first gas discharge hole (84), and the structural radius of the outer ring of the annular sealing ring (88) is less than the distance between the gas flow groove (87) and the axis of the movable valve plate (86).

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