A nutrient solution preparation box for intelligent greenhouse planting

Abstract

The present invention relates to the technical field of nutrient solution configuration equipment, and discloses a nutrient solution preparation box for intelligent greenhouse planting, including a liquid storage tank, a liquid inlet pipe is provided at the upper end of the liquid storage tank, a stirring mechanism is provided in the liquid storage tank, a first fixed groove, a second fixed groove and a third fixed groove are provided at the bottom of the liquid storage tank, the stirring mechanism includes a base, a fixed shaft is provided at the lower end of the base, and the fixed shaft is rotatably connected to the liquid storage tank, a groove is provided at the upper end of the base, and a movable plate and a fixed seat are provided in the groove. The present invention arranges a first fixed groove at the lower side of the liquid storage tank, and a reduction box for driving the stirring mechanism to rotate is provided in the first fixed groove. The reduction box is driven by hydraulic power. When mixing the nutrient solution ingredients, a certain amount of water needs to be transported into the liquid storage tank. The technical solution utilizes hydraulic power to drive the stirring mechanism to rotate, eliminating the need for motor drive, and is more environmentally friendly and energy-saving.

Description

Technical Field

[0001] The invention relates to the technical field of nutrient solution configuration equipment, and in particular to a nutrient solution preparation box for intelligent greenhouse planting. Background Art

[0002] The function of the smart greenhouse is to apply intelligent control systems to greenhouse cultivation, use advanced bio-simulation technology to simulate the environment most suitable for plant growth in the greenhouse, use temperature, humidity, carbon dioxide, light intensity sensors and other sensors to perceive various environmental indicators of the greenhouse, and use microcomputers to analyze data. The microcomputer monitors the water curtains, fans, sunshades and other facilities in the greenhouse, thereby changing the biological growth environment inside the greenhouse.

[0003] In the greenhouse planting process, the preparation and use of nutrient solution is a very important part. In the prior art, solid nutrient solution ingredients are generally added to water, and then dissolved and mixed to obtain nutrient solution. In order to improve the preparation efficiency, a stirring mechanism is also set in the water tank. Most stirring mechanisms are driven by motors. This stirring mechanism achieves stirring by driving the rotor in the box by the motor. This stirring method will make the liquid near the rotor have a good stirring effect, while the part far away from the rotor has a poor stirring effect. The overall stirring effect needs to be improved. Summary of the invention

[0004] The present invention provides an intelligent nutrient solution preparation box for greenhouse planting, which has the beneficial effects of environmental protection and energy saving, and solves the problem mentioned in the above background technology that most of the nutrient solutions are stirred and mixed by motors during preparation, which is not environmentally friendly.

[0005] The present invention provides the following technical solution: a nutrient solution preparation box for intelligent greenhouse planting, wherein the upper end of the liquid storage box is provided with a liquid inlet pipe, and a stirring mechanism is provided inside the liquid storage box, and the bottom of the liquid storage box is provided with a first fixed groove, a second fixed groove and a third fixed groove;

[0006] The stirring mechanism includes a base, a fixed shaft is provided at the lower end of the base, and the fixed shaft is rotatably connected to the liquid storage tank, a groove is provided at the upper end of the base, and a movable plate and a fixed seat are provided in the groove, the fixed seat is fixed at the center of the base, and a stirring rod is provided on the upper side of the fixed seat, the movable plate is arranged on the outer side of the fixed seat, and one end of the movable plate is rotatably connected to the fixed seat, an inclined bottom is provided on the lower side of the movable plate, and an inclined groove is provided on the upper side of the movable plate.

[0007] As an optional solution of the nutrient solution preparation box for intelligent greenhouse planting described in the present invention, the first fixed groove is connected to the liquid inlet pipe through a pipeline, and a liquid inlet is provided on one side of the first fixed groove, a reduction gear box is provided in the first fixed groove, and an impeller is provided on the input shaft of the reduction gear box, and the output shaft of the reduction gear box is fixedly connected to the fixed shaft.

[0008] As an optional solution of the nutrient solution preparation box for intelligent greenhouse planting described in the present invention, an infusion pump is provided in the second fixed tank, and the second fixed tank is connected to the third fixed tank through a connecting pipe.

[0009] As an optional solution of the nutrient solution preparation box for intelligent greenhouse planting described in the present invention, a piston is provided in the third fixed groove, and a trumpet-shaped inlet is provided at the upper end of the third fixed groove, a fixed plate is provided at the trumpet-shaped inlet, a connecting plate is provided on the piston, and the piston is elastically connected to the fixed plate through a limit spring, one end of the connecting plate passes through the fixed plate, and a slanted top is provided on the connecting plate.

[0010] As an optional solution of the intelligent nutrient solution preparation box for greenhouse planting described in the present invention, a plurality of top blocks are provided on the lower side of the base, and a plurality of openings are provided on the base, the positions and numbers of the openings correspond one-to-one with the movable plates, and a transmission mechanism is provided at the openings.

[0011] As an optional solution of the intelligent nutrient solution preparation box for greenhouse planting described in the present invention, the transmission mechanism includes a first transmission rod and a second transmission rod, and the first transmission rod and the second transmission rod are both rotatably connected to the base, one end of the first transmission rod is overlapped with the second transmission rod, and the other end of the first transmission rod is provided with a floating plate, and the end of the second transmission rod away from the first transmission rod is overlapped with the movable plate.

[0012] As an optional solution of the intelligent greenhouse planting nutrient solution preparation box described in the present invention, wherein: a cover plate is provided at the upper end of the second fixed groove, and a first through hole and a second through hole are provided on the cover plate, the first through hole is opposite to the end of the second transmission rod away from the first transmission rod, a baffle is provided on the lower side of the second through hole, and one end of the baffle is rotatably connected to the cover plate through a rotating shaft.

[0013] As an optional solution of the intelligent nutrient solution preparation box for greenhouse planting described in the present invention, the stirring rod is provided with a stirring blade, and a material guide plate is provided on the top of the stirring rod, the material guide plate is conical, and a plurality of material guide channels are provided on the material guide plate, and the positions and quantities of the material guide channels correspond one-to-one to the movable plate.

[0014] As an optional solution of the nutrient solution preparation box for intelligent greenhouse planting described in the present invention, a support frame is provided on the top of the liquid storage tank, a plurality of hoppers are provided on the support frame, and a discharge pipe is provided at the lower end of the hopper, and an electric valve is provided on the discharge pipe.

[0015] The present invention has the following beneficial effects:

[0016] 1. The nutrient solution preparation box for the intelligent greenhouse planting is provided with a first fixed groove at the lower side of the liquid storage tank. A reduction box for driving the stirring mechanism to rotate is arranged in the first fixed groove. The reduction box is driven by hydraulic power. When dissolving and mixing the nutrient solution ingredients, a certain amount of water needs to be transported into the liquid storage tank. The technical solution utilizes hydraulic power to drive the stirring mechanism to rotate, eliminating the need for a motor drive, which is more environmentally friendly and energy-saving.

[0017] 2. The nutrient solution preparation box for intelligent greenhouse planting is configured with a second fixed groove and a third fixed groove at the lower end of the liquid storage tank. The infusion pump is fixed in the second fixed groove. A piston is provided in the third fixed groove. A connecting plate is provided on the piston. The piston is elastically connected to the fixing plate through a limit spring. The nutrient solution in the liquid storage tank can pass through the fixing plate and enter the third fixed groove. A top block corresponding to the connecting plate is provided at the lower end of the base. As the base rotates, the top block will continuously conflict with the connecting plate. Under the push of the top block, the connecting plate will continuously move with the piston. As the piston moves, the nutrient solution in the third fixed groove can be pressed into the second fixed groove. When the nutrient solution is pressed into the second fixed groove, it will impact the nutrient solution in the second fixed groove, which can effectively prevent the nutrient solution ingredients from being deposited in the second fixed groove.

[0018] 3. The nutrient solution preparation box for intelligent greenhouse planting is equipped with several movable plates on the base. When the nutrient solution in the third fixed groove is pressed into the second fixed groove, the nutrient solution in the second fixed groove is squeezed and will flow out toward the liquid storage tank. In the process of flowing out, it will impact the movable plate on the base, thereby pushing the movable plate to move. At this time, the movable plate generates a fan. Driven by the base, the nutrient solution in the liquid storage tank rotates, and driven by the movable plate, part of the nutrient solution can move up and down, and the mixing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal structure of the liquid storage tank of the present invention.

[0021] Figure 3 It is a schematic diagram of the stirring mechanism structure of the present invention.

[0022] Figure 4It is a cross-sectional view of the base of the present invention.

[0023] Figure 5 It is a cross-sectional view of the second fixing groove and the third fixing groove of the present invention.

[0024] Figure 6 It is a schematic diagram of the cover plate structure of the present invention.

[0025] In the figure: 1, liquid storage tank; 2, liquid inlet pipe; 3, first fixed groove; 301, liquid inlet; 4, second fixed groove; 5, third fixed groove; 6, base; 601, groove; 602, top block; 603, opening; 7, fixed shaft; 8, movable plate; 801, inclined groove; 9, fixed seat; 10, stirring rod; 11, reduction box; 12, impeller; 13, infusion pump; 14, connecting pipe; 15, piston; 16, fixed plate; 17, connecting plate; 18, limit spring; 19, first transmission rod; 20, second transmission rod; 21, floating plate; 22, cover plate; 23, first through hole; 24, second through hole; 25, baffle; 26, stirring blade; 27, guide plate; 28, guide channel; 29, support frame; 30, hopper; 31, discharge pipe; 32, electric valve. DETAILED DESCRIPTION

[0026] 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. Example

[0027] See also Figures 1 to 4 , a nutrient solution preparation box for intelligent greenhouse planting, comprising a liquid storage tank 1, a liquid inlet pipe 2 is provided at the upper end of the liquid storage tank 1, a stirring mechanism is provided inside the liquid storage tank 1, and a first fixed groove 3, a second fixed groove 4 and a third fixed groove 5 are provided at the bottom of the liquid storage tank 1;

[0028] The stirring mechanism includes a base 6, a fixed shaft 7 is provided at the lower end of the base 6, and the fixed shaft 7 is rotatably connected to the liquid storage tank 1, a groove 601 is provided at the upper end of the base 6, and a movable plate 8 and a fixed seat 9 are provided in the groove 601, the fixed seat 9 is fixed at the center of the base 6, and a stirring rod 10 is provided on the upper side of the fixed seat 9, the movable plate 8 is arranged on the outer side of the fixed seat 9, and one end of the movable plate 8 is rotatably connected to the fixed seat 9, an inclined bottom is provided on the lower side of the movable plate 8, and an inclined groove 801 is provided on the upper side of the movable plate 8.

[0029] The first fixed tank 3 is connected to the liquid inlet pipe 2 through a pipeline, and a liquid inlet port 301 is provided on one side of the first fixed tank 3. A reduction box 11 is provided in the first fixed tank 3, and an impeller 12 is provided on the input shaft of the reduction box 11, and the output shaft of the reduction box 11 is fixedly connected to the fixed shaft 7. An infusion pump 13 is provided in the second fixed tank 4, and the second fixed tank 4 is connected to the third fixed tank 5 through a connecting pipe 14.

[0030] By setting a first fixed groove 3 on the lower side of the liquid storage tank 1, a liquid inlet 301 is provided on the first fixed groove 3. When water flows into the liquid storage tank 1, it will first flow through the first fixed groove 3. A reduction box 11 is provided in the first fixed groove 3. An impeller 12 is provided on the input shaft of the reduction box 11. Under the impact of the water flow, the impeller 12 will drive the reduction box 11 to rotate, and the reduction box 11 will drive the stirring mechanism to rotate. That is to say, in this technical solution, the stirring mechanism is driven by water power. When dissolving and mixing the ingredients of the nutrient solution, a certain amount of water needs to be transported into the liquid storage tank 1. This technical solution utilizes water power to drive the stirring mechanism to rotate, eliminating the drive of the motor, which is more environmentally friendly and energy-saving.

[0031] Specific working principle: water flows into the first fixed groove 3 through the liquid inlet 301, and then enters the liquid storage tank 1 through the pipeline and the liquid inlet pipe 2. In this process, under the impact of the water flow, the impeller 12 will drive the input shaft of the reduction box 11 to rotate, and the reduction box 11 plays a role in amplifying the force. The reduction box 11 can drive the fixed shaft 7 to rotate, and the fixed shaft 7 will drive the base 6 to rotate. A stirring rod 10 is provided on the base 6. The stirring blades 26 on the base 6 and the stirring rod 10 can complete the stirring of the nutrient solution in the liquid storage tank 1. Example

[0032] See also Figure 4 and Figure 5 This embodiment is a further improvement of the embodiment 1. A piston 15 is provided in the third fixed groove 5, and a trumpet-shaped inlet is provided at the upper end of the third fixed groove 5. A fixing plate 16 is provided at the trumpet-shaped inlet. A connecting plate 17 is provided on the piston 15, and the piston 15 is elastically connected to the fixing plate 16 through a limit spring 18. One end of the connecting plate 17 penetrates the fixing plate 16, and an inclined top is provided on the connecting plate 17. A plurality of top blocks 602 are provided on the lower side of the base 6, and a plurality of openings 603 are provided on the base 6. The positions and numbers of the openings 603 correspond to the movable plate 8 one by one, and a transmission mechanism is provided at the openings 603.

[0033] Since the base 6 rotates during operation, if the infusion pump 13 is set at the bottom of the liquid storage tank 1, the infusion pump 13 will affect the operation of the base 6. Therefore, a second fixed groove 4 is set at the lower end of the liquid storage tank 1, and the infusion pump 13 is fixed in the second fixed groove 4. The second fixed groove 4 is lower than the liquid storage tank 1. In this way, during operation, the nutrient solution in the liquid storage tank 1 will gather in the second fixed groove 4, which is convenient for the infusion pump 13 to work. However, when the nutrient solution ingredients are dissolved, part of the nutrient solution ingredients will be deposited in the second fixed groove 4, resulting in uneven mixing.

[0034] In order to solve the problem, a third fixed groove 5 is set on one side of the second fixed groove 4, and a piston 15 is provided in the third fixed groove 5. A connecting plate 17 is provided on the piston 15, and the piston 15 is elastically connected to the fixing plate 16 through a limit spring 18. When working, the fixing plate 16 is fixed, and the nutrient solution in the liquid storage tank 1 can pass through the fixing plate 16 and enter the third fixed groove 5. A top block 602 corresponding to the connecting plate 17 is provided at the lower end of the base 6. As the base 6 rotates, the top block 602 will continuously conflict with the connecting plate 17. Since an inclined top is provided on the connecting plate 17, the connecting plate 17 will continuously move with the piston 15 under the push of the top block 602. As the piston 15 moves, the nutrient solution in the third fixed groove 5 can be pressed into the second fixed groove 4. When the nutrient solution is pressed into the second fixed groove 4, it will impact the nutrient solution in the second fixed groove 4, which can effectively prevent the nutrient solution ingredients from being deposited in the second fixed groove 4. Example

[0035] See also Figure 4 This embodiment is a further improvement on embodiment 1. The transmission mechanism includes a first transmission rod 19 and a second transmission rod 20, and the first transmission rod 19 and the second transmission rod 20 are both rotatably connected to the base 6. One end of the first transmission rod 19 overlaps with the second transmission rod 20, and the other end of the first transmission rod 19 is provided with a floating plate 21. The end of the second transmission rod 20 away from the first transmission rod 19 overlaps with the movable plate 8.

[0036] A groove 601 is provided on the base 6, and a movable plate 8 is provided in the groove 601. The movable plate 8 is movable. When the nutrient solution in the third fixed groove 5 is pressed into the second fixed groove 4, the nutrient solution in the second fixed groove 4 is squeezed and will flow out toward the liquid storage tank 1. During the flow, the nutrient solution will impact the movable plate 8 on the base 6, thereby pushing the movable plate 8 to move. At this time, the movable plate 8 generates a fan. Driven by the base 6, the nutrient solution in the liquid storage tank 1 rotates, and driven by the movable plate 8, part of the nutrient solution can move up and down, and the mixing effect is better.

[0037] In order to improve the flapping effect of the movable plate 8, a transmission mechanism is provided at the opening 603. When the nutrient solution in the second fixed groove 4 flows out, one end of the first transmission rod 19 tilts up under the action of the nutrient solution, and the other end presses the second transmission rod 20 downward. Under the pressure of the first transmission rod 19, one end of the second transmission rod 20 tilts up and pushes the movable plate 8 to move. The first transmission rod 19 and the second transmission rod 20 are both equivalent to a lever, which has the effect of amplifying the force. By providing a floating plate 21 on the first transmission rod 19, when the water flows into the liquid storage tank 1, the floating plate 21 will float up. Driven by the floating plate 21, one end of the second transmission rod 20 will be close to the first transmission rod 19, so that the transmission of force between the second transmission rod 20 and the first transmission rod 19 becomes more efficient. Example

[0038] See also Figure 5 and Figure 6 This embodiment is a further improvement on embodiment 1. A cover plate 22 is provided at the upper end of the second fixing groove 4, and a first through hole 23 and a second through hole 24 are provided on the cover plate 22. The first through hole 23 is opposite to the end of the second transmission rod 20 away from the first transmission rod 19. A baffle plate 25 is provided on the lower side of the second through hole 24, and one end of the baffle plate 25 is rotatably connected to the cover plate 22 through a rotating shaft.

[0039] Under normal circumstances, when the infusion pump 13 is working, the nutrient solution in the liquid storage tank 1 will enter the second fixed groove 4 through the first through hole 23 and the second through hole 24. A baffle 25 is provided at the second through hole 24, and the baffle 25 can only be opened downward, that is, the nutrient solution in the liquid storage tank 1 can enter the second fixed groove 4 through the second through hole 24, but the nutrient solution in the second fixed groove 4 cannot flow out through the second through hole 24. In this way, when the piston 15 moves, the nutrient solution in the third fixed groove 5 is pressed into the second fixed groove 4, and the nutrient solution in the second fixed groove 4 can only be discharged through the first through hole 23. The first through hole 23 is conical in shape and opposite to the second transmission rod 20. The cover plate 22 can play a gathering role for the nutrient solution sprayed from the second fixed groove 4, so that it can cause a large impact on the second transmission rod 20, thereby allowing the movable plate 8 to move to a greater extent. Example

[0040] See also Figures 1 to 3 This embodiment is a further improvement of the embodiment 1. A support frame 29 is provided on the top of the liquid storage tank 1. A plurality of hoppers 30 are provided on the support frame 29. A discharge pipe 31 is provided at the lower end of the hopper 30. An electric valve 32 is provided on the discharge pipe 31. A stirring blade 26 is provided on the stirring rod 10. A material guide plate 27 is provided on the top of the stirring rod 10. The material guide plate 27 is conical. A plurality of material guide channels 28 are provided on the material guide plate 27. The positions and numbers of the material guide channels 28 correspond to the movable plates 8 one by one.

[0041] A plurality of hoppers 30 are arranged on the support frame 29, and different kinds of ingredients are stored in each hopper 30. A discharge pipe 31 is arranged at the lower end of the hopper 30, and an electric valve 32 is arranged on the discharge pipe 31. The opening of the electric valve 32 is controlled by a motor. The motor is connected to the upper computer of the intelligent greenhouse. The upper computer can control the opening and closing of the motor, and the discharge amount of the hopper 30 can be controlled by the electric valve 32. In this way, in actual use, the nutrient solution configuration data of vegetables of different kinds and periods can be input into the upper computer, and then the upper computer can be used to control the operation of the electric valve 32, so that the nutrient solution can be configured according to the needs of different vegetables and different growth cycles.

[0042] Specifically, the support frame 29 is in a ring shape, that is, the hopper 30 is arranged in a ring on the upper side of the liquid storage tank 1, and a discharge pipe 31 is provided on the lower side of the hopper 30, and the discharge pipe 31 is aligned with the guide plate 27, and a guide channel 28 is provided on the guide plate 27. The position and number of the guide channels 28 correspond to the movable plate 8 one by one. When the ingredients fall onto the guide plate 27, the ingredients will slide along the guide channel 28 to the corresponding movable plate 8, and a chute 801 is provided in the movable plate 8. The ingredients will be stored in the chute 801. When the base 6 rotates, the movable plate 8 in the base 6 will fan up and down under the impact of the liquid flow. That is to say, when the movable plate 8 moves, it will drive the ingredients in the movable plate 8 to shake continuously, which can effectively improve the dissolution efficiency of the material.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A nutrient solution preparation box for intelligent greenhouse planting, comprising a liquid storage box (1), characterized in that: The upper end of the liquid storage tank (1) is provided with a liquid inlet pipe (2), and a stirring mechanism is provided inside the liquid storage tank (1); the bottom of the liquid storage tank (1) is provided with a first fixed groove (3), a second fixed groove (4) and a third fixed groove (5); The stirring mechanism comprises a base (6), a fixed shaft (7) is provided at the lower end of the base (6), and the fixed shaft (7) is rotatably connected to the liquid storage tank (1), a groove (601) is provided at the upper end of the base (6), and a movable plate (8) and a fixed seat (9) are provided in the groove (601), the fixed seat (9) is fixed at the center of the base (6), and a stirring rod (10) is provided on the upper side of the fixed seat (9), the movable plate (8) is arranged on the outer side of the fixed seat (9), and one end of the movable plate (8) is rotatably connected to the fixed seat (9), an inclined bottom is provided on the lower side of the movable plate (8), and an inclined groove (801) is provided on the upper side of the movable plate (8); A piston (15) is provided in the third fixing groove (5), and a trumpet-shaped inlet is provided at the upper end of the third fixing groove (5), a fixing plate (16) is provided at the trumpet-shaped inlet, a connecting plate (17) is provided on the piston (15), and the piston (15) is elastically connected to the fixing plate (16) via a limit spring (18), one end of the connecting plate (17) passes through the fixing plate (16), and a slanted top is provided on the connecting plate (17); A plurality of top blocks (602) are provided on the lower side of the base (6), and a plurality of openings (603) are provided on the base (6), the positions and numbers of the openings (603) correspond one-to-one with the movable plates (8), and a transmission mechanism is provided at the openings (603).

2. The intelligent greenhouse planting nutrient solution preparation box according to claim 1, characterized in that: The first fixed groove (3) is in communication with the liquid inlet pipe (2) via a pipeline, and a liquid inlet (301) is provided on one side of the first fixed groove (3). A reduction gearbox (11) is provided in the first fixed groove (3), and an impeller (12) is provided on an input shaft of the reduction gearbox (11), and an output shaft of the reduction gearbox (11) is fixedly connected to the fixed shaft (7).

3. The intelligent greenhouse planting nutrient solution preparation box according to claim 1, characterized in that: An infusion pump (13) is provided in the second fixed groove (4), and the second fixed groove (4) is connected to the third fixed groove (5) via a connecting pipe (14).

4. The intelligent greenhouse planting nutrient solution preparation box according to claim 1, characterized in that: The transmission mechanism comprises a first transmission rod (19) and a second transmission rod (20), and the first transmission rod (19) and the second transmission rod (20) are both rotatably connected to the base (6), one end of the first transmission rod (19) overlaps with the second transmission rod (20), and the other end of the first transmission rod (19) is provided with a floating plate (21), and one end of the second transmission rod (20) away from the first transmission rod (19) overlaps with the movable plate (8).

5. The intelligent greenhouse planting nutrient solution preparation box according to claim 4, characterized in that: A cover plate (22) is provided at the upper end of the second fixing groove (4), and a first through hole (23) and a second through hole (24) are provided on the cover plate (22), the first through hole (23) being opposite to an end of the second transmission rod (20) away from the first transmission rod (19), a baffle plate (25) is provided at the lower side of the second through hole (24), and one end of the baffle plate (25) is rotatably connected to the cover plate (22) via a rotating shaft.

6. The intelligent greenhouse planting nutrient solution preparation box according to claim 1, characterized in that: The stirring rod (10) is provided with a stirring blade (26), and a material guide plate (27) is provided at the top of the stirring rod (10). The material guide plate (27) is conical in shape, and a plurality of material guide channels (28) are provided on the material guide plate (27). The positions and numbers of the material guide channels (28) correspond one to one with the movable plate (8).

7. The intelligent greenhouse planting nutrient solution preparation box according to claim 1, characterized in that: A support frame (29) is provided on the top of the liquid storage tank (1), a plurality of hoppers (30) are provided on the support frame (29), and a discharge pipe (31) is provided at the lower end of the hopper (30), and an electric valve (32) is provided on the discharge pipe (31).

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