Water culture device based on tidal irrigation

Abstract

The invention belongs to the technical field of plant cultivation, and particularly discloses a tidal irrigation based hydroponic device which comprises a base, a first supporting rod is arranged on the upper wall of the base, a hydroponic dish is arranged at the upper end of the first supporting rod, a seedling raising assembly is arranged in the hydroponic dish, and an automatic humidity adjusting assembly is arranged on the upper wall of the hydroponic dish. A second supporting rod is arranged on the upper wall of the base, an irrigation cylinder is arranged at the upper end of the second supporting rod, a buoyancy adjusting lifting assembly is arranged in the irrigation cylinder, a swing adjusting assembly is arranged on the automatic humidity adjusting assembly and the buoyancy adjusting lifting assembly, and an automatic liquid supply assembly is arranged on the upper wall of the base. Tidal change of a nutrient solution in the hydroponic dish is achieved through inflation and deflation of the air bag, meanwhile, spraying is conducted on the upper side of the hydroponic dish, the plant growth humidity is adjusted, and in the process, supplementing of the nutrient solution is automatically achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a hydroponic device based on tidal irrigation. Background Art

[0002] The tidal planting system is a widely used soilless cultivation method. At present, the existing tidal planting system needs to continuously add nutrient solution to the nutrient pool, and then use the siphon principle to drain the nutrient solution. The difference between the water inlet speed and the water outlet speed is controlled to control the water level of the nutrient solution, thereby realizing tidal planting.

[0003] The traditional tidal planting system requires regular checks on the amount of nutrient solution. If the nutrient solution is consumed, it needs to be replenished manually in time, which increases the labor intensity. If the nutrient solution is not replenished in time, the water pump will run idle, causing great damage to the water pump and increasing the maintenance cost.

[0004] Therefore, a hydroponic device based on tidal irrigation is needed to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a hydroponic device based on tidal irrigation, which utilizes the inflation and deflation of the air bag to achieve tidal changes in the nutrient solution in the hydroponic dish, and at the same time sprays the upper side of the hydroponic dish to adjust the humidity for plant growth, and automatically replenishes the nutrient solution in the process.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a hydroponic device based on tidal irrigation, comprising a base, the upper wall of the base is provided with a support rod 1, the upper end of the support rod 1 is provided with a hydroponic dish, the hydroponic dish is provided with a seedling raising component, the upper wall of the hydroponic dish is provided with an automatic humidity adjustment component, the upper wall of the base is provided with a support rod 2, the upper end of the support rod 2 is provided with an irrigation cylinder, the irrigation cylinder is provided with a buoyancy adjustment lifting component, the automatic humidity adjustment component and the buoyancy adjustment lifting component are provided with a swing adjustment component, and the upper wall of the base is provided with an automatic liquid supply component.

[0007] Furthermore, a partition is provided in the irrigation cylinder, and water is filled on the upper side of the partition.

[0008] Furthermore, the buoyancy adjustment lifting assembly includes a counterweight plate, an airbag, a lifting rod and a sealing movable plate, the counterweight plate is arranged in the irrigation barrel, the counterweight plate is arranged on the upper side of the partition, the airbag is arranged on the upper wall of the counterweight plate, the upper end of the lifting rod is arranged at the center of the lower wall of the counterweight plate, the lifting rod passes through the counterweight plate, the sealing movable plate is arranged at the lower end of the lifting rod, and the sealing movable plate is arranged on the lower side of the partition in the irrigation barrel.

[0009] Furthermore, the automatic humidity adjustment component includes a swing rod, a rotating rod, a venturi tube, a water suction pipe, an atomizing nozzle and an air inlet pipe, the rotating rod is rotatably arranged on the upper wall of the hydroponic dish, the swing rod is arranged at the upper end of the rotating rod, the swing rod is a hollow rod, the atomizing nozzle is evenly arranged on the lower wall of the swing rod, the air inlet end of the venturi tube is arranged at the end of the swing rod, the air inlet end of the venturi tube is connected to the swing rod, one end of the air inlet pipe is connected to the air outlet end of the venturi tube, the other end of the air inlet pipe is connected to the air bag, a one-way valve is provided on the air inlet pipe, one end of the water suction pipe is connected to the negative pressure end of the venturi tube, and a solenoid valve is provided on the air inlet pipe.

[0010] Furthermore, the swing adjustment assembly includes an active bevel gear, a driven bevel gear, a gear frame, a gear shaft, a transmission gear, a transmission rack, a connecting rod, a linkage rod and a boss, the boss is arranged on the outer side wall of the counterweight plate, the lower end of the linkage rod is arranged on the upper wall of the boss, the gear frame is arranged on the upper wall of the hydroponic dish, the gear shaft is arranged on the gear frame, the active bevel gear is arranged at one end of the gear shaft, the driven bevel gear is arranged on the rotating rod, the active bevel gear is meshed with the driven bevel gear, the transmission gear is arranged at the other end of the gear shaft, the connecting rod is arranged at the upper end of the linkage rod, the transmission rack is arranged at the end of the connecting rod, and the transmission rack is meshed with the transmission gear.

[0011] Furthermore, the automatic liquid supply assembly includes a liquid supply cylinder, a liquid pipette, an outer cylinder, an inner moving rod, a buoyancy block and an irrigation pipe, wherein the liquid supply cylinder is arranged on the upper wall of the base, the outer cylinder is a hollow cavity with an upper end opening, the upper end of the outer cylinder is penetrated and arranged at the bottom of the hydroponic dish, the inner moving rod is slidably arranged in the outer cylinder, the upper end of the inner moving rod is in the hydroponic dish, the buoyancy block is arranged at the upper end of the inner moving rod, a connecting hole is arranged in the inner moving rod, and the lower end of the connecting hole is The pipette penetrates the lower end of the inner moving rod, and the upper end of the communicating hole penetrates the upper end side wall of the inner moving rod. One end of the pipette penetrates the lower part of the outer wall of the liquid supply cylinder, and the other end of the pipette penetrates the upper end of the outer wall of the outer cylinder. One end of the irrigation pipe penetrates the lower end of the outer cylinder, and the other end of the irrigation pipe penetrates the lower end of the irrigation cylinder. A one-way valve is provided on the pipette. When the buoyancy block is at the inner bottom wall of the hydroponic dish, the upper end of the communicating hole is aligned with the pipette.

[0012] Furthermore, the outer cylinder is a square cylinder, and the inner moving rod is a square rod.

[0013] Furthermore, an air pump is provided on the upper wall of the base, and the air pump is connected to the airbag through a ventilation pipe, and the ventilation pipe is provided with a one-way valve.

[0014] Furthermore, the seedling raising assembly includes a seedling raising rack and a seedling raising tube. The seedling raising rack is arranged in a fan shape. The seedling raising tube is evenly penetrated through the seedling raising rack. The bottom of the seedling raising tube is provided with a water-permeable hole. The edge of the seedling raising rack is provided with a limiting skirt. The limiting skirt is at the outer wall of the hydroponic dish.

[0015] Furthermore, the hydroponic dish is a fan-shaped trough.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The inflation and deflation of the airbag drives the weight plate to rise and fall, thereby driving the lifting rod and the sealing movable plate to rise and fall, and then the nutrient solution flows between the irrigation tube and the hydroponic dish, realizing the tidal change of the nutrient solution and tidal irrigation of the plants; 2. After the nutrient solution enters the hydroponic dish, the nutrient solution is absorbed by the nutrient soil in the seedling tube, the liquid level of the nutrient solution in the hydroponic dish drops, and the buoyancy block drops along with the liquid level of the nutrient solution. The air pump is turned on, and the air pump inflates the airbag through the vent pipe. The buoyancy of the airbag increases, and the airbag drives the counterweight plate, the lifting rod, and the sealing movable plate to rise. The nutrient solution enters the lower side of the sealing movable plate in the irrigation tube, and the liquid level of the nutrient solution in the hydroponic dish continues to drop. The buoyancy block continues to drop along with it. When the buoyancy block drops to the inner bottom wall of the hydroponic dish, the upper end of the connecting hole is aligned with the liquid pipette. When the sealing movable plate continues to rise, the nutrient solution in the liquid supply tube enters the connecting hole from the liquid pipette, enters the irrigation tube through the connecting hole, and then enters the irrigation tube, and automatically completes the replenishment of the nutrient solution. 3. The inflation and deflation of the airbag drives the counterweight plate, boss, linkage rod, connecting rod and transmission rack to rise and fall. The transmission rack drives the transmission gear, gear shaft, active bevel gear and driven bevel gear to rotate forward and reverse. The driven bevel gear drives the rotating rod to rotate. The rotating rod drives the swing rod to swing back and forth, thereby driving the atomizing nozzle to spray the plants in the seedling tube to achieve humidity regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a hydroponic device based on tidal irrigation proposed by the present invention; Figure 2 for Figure 1 The main view of Figure 3 It is a three-dimensional structural schematic diagram of the swing adjustment component and the buoyancy adjustment lifting component; Figure 4 It is a schematic diagram of the structure inside the irrigation cylinder; Figure 5 It is a schematic diagram of the internal structure of the automatic liquid supply component; Figure 6 It is a schematic diagram of the upper three-dimensional structure of the seedling raising component; Figure 7 It is a schematic diagram of the lower three-dimensional structure of the seedling raising component.

[0018] Among them, 1. base, 2. support rod 1, 3. hydroponic dish, 4. seedling raising component, 5. automatic humidity adjustment component, 6. support rod 2, 7. irrigation cylinder, 8. buoyancy adjustment lifting component, 9. swing adjustment component, 10. automatic liquid supply component, 11. partition, 12. counterweight plate, 13. air bag, 14. lifting rod, 15. sealing movable plate, 16. swing rod, 17. rotating rod, 18. venturi tube, 19. water suction pipe, 20. atomizing nozzle, 21. air inlet pipe, 22. , driving bevel gear, 23, driven bevel gear, 24, gear rack, 25, gear shaft, 26, transmission gear, 27, transmission rack, 28, connecting rod, 29, linkage rod, 30, boss, 31, liquid supply cylinder, 32, suction tube, 33, outer cylinder, 34, inner moving rod, 35, buoyancy block, 36, irrigation pipe, 37, connecting hole, 38, air pump, 39, seedling rack, 40, seedling cylinder, 41, water permeable hole, 42, limit skirt, 43, ventilation pipe, 44, solenoid valve.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figure 1As shown, the present invention proposes a hydroponic device based on tidal irrigation, comprising a base 1, the upper wall of the base 1 is provided with a support rod 2, the upper end of the support rod 2 is provided with a hydroponic dish 3, the hydroponic dish 3 is provided with a seedling raising component 4, the upper wall of the hydroponic dish 3 is provided with an automatic humidity adjustment component 5, the upper wall of the base 1 is provided with a support rod 6, the upper end of the support rod 6 is provided with an irrigation cylinder 7, the irrigation cylinder 7 is provided with a buoyancy adjustment lifting component 8, the automatic humidity adjustment component 5 and the buoyancy adjustment lifting component 8 are provided with a swing adjustment component 9, and the upper wall of the base 1 is provided with an automatic liquid supply component 10.

[0023] like Figure 1 , Figure 4 As shown, a partition 11 is provided in the irrigation tube 7, and the upper side of the partition 11 is filled with water.

[0024] like Figure 1 , Figure 4 As shown, the buoyancy adjustment lifting assembly 8 includes a counterweight plate 12, an airbag 13, a lifting rod 14 and a sealing movable plate 15. The counterweight plate 12 is arranged in the irrigation tube 7, the counterweight plate 12 is arranged on the upper side of the partition 11, the airbag 13 is arranged on the upper wall of the counterweight plate 12, the upper end of the lifting rod 14 is arranged at the center of the lower wall of the counterweight plate 12, the lifting rod 14 passes through the counterweight plate 12, the sealing movable plate 15 is arranged at the lower end of the lifting rod 14, and the sealing movable plate 15 is arranged on the lower side of the partition 11 in the irrigation tube 7.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the automatic humidity adjustment component 5 includes a swing rod 16, a rotating rod 17, a venturi tube 18, a water suction pipe 19, an atomizing nozzle 20 and an air inlet pipe 21, the rotating rod 17 is rotatably arranged on the upper wall of the hydroponic dish 3, the swing rod 16 is arranged at the upper end of the rotating rod 17, the swing rod 16 is a hollow rod, the atomizing nozzle 20 is evenly arranged on the lower wall of the swing rod 16, the air inlet end of the venturi tube 18 is arranged at the end of the swing rod 16, the air inlet end of the venturi tube 18 is communicated with the swing rod 16, one end of the air inlet pipe 21 is connected to the air outlet end of the venturi tube 18, the other end of the air inlet pipe 21 is connected to the air bag 13, a one-way valve is provided on the air inlet pipe 21, one end of the water suction pipe 19 is connected to the negative pressure end of the venturi tube 18, and a solenoid valve 44 is provided on the air inlet pipe 21.

[0026] like Figure 1 , Figure 2 , Figure 3As shown, the swing adjustment component 9 includes an active bevel gear 22, a driven bevel gear 23, a gear frame 24, a gear shaft 25, a transmission gear 26, a transmission rack 27, a connecting rod 28, a linkage rod 29 and a boss 30, wherein the boss 30 is arranged on the outer side wall of the counterweight plate 12, the lower end of the linkage rod 29 is arranged on the upper wall of the boss 30, the gear frame 24 is arranged on the upper wall of the hydroponic dish 3, the gear shaft 25 is penetrated and arranged on the gear frame 24, the active bevel gear 22 is arranged on one end of the gear shaft 25, the driven bevel gear 23 is arranged on the rotating rod 17, the active bevel gear 22 is meshed with the driven bevel gear 23, the transmission gear 26 is arranged at the other end of the gear shaft 25, the connecting rod 28 is arranged at the upper end of the linkage rod 29, the transmission rack 27 is arranged at the end of the connecting rod 28, and the transmission rack 27 is meshed with the transmission gear 26.

[0027] like Figure 1 , Figure 2 , Figure 5 As shown, the automatic liquid supply assembly 10 includes a liquid supply cylinder 31, a liquid pipette 32, an outer cylinder 33, an inner moving rod 34, a buoyancy block 35 and an irrigation pipe 36. The liquid supply cylinder 31 is arranged on the upper wall of the base 1. The outer cylinder 33 is a hollow cavity with an upper end opening. The upper end of the outer cylinder 33 penetrates the bottom of the hydroponic dish 3. The inner moving rod 34 is slidably arranged in the outer cylinder 33. The upper end of the inner moving rod 34 is in the hydroponic dish 3. The buoyancy block 35 is arranged at the upper end of the inner moving rod 34. A connecting hole 37 is provided in the inner moving rod 34. The connecting hole 37 The lower end of the connecting hole 37 passes through the lower end of the inner moving rod 34, and the upper end of the connecting hole 37 passes through the upper end side wall of the inner moving rod 34. One end of the suction tube 32 passes through the lower part of the outer wall of the liquid supply cylinder 31, and the other end of the suction tube 32 passes through the upper end of the outer wall of the outer cylinder 33. One end of the irrigation tube 36 passes through the lower end of the outer cylinder 33, and the other end of the irrigation tube 36 passes through the lower end of the irrigation cylinder 7. A one-way valve is provided on the suction tube 32. When the buoyancy block 35 is at the inner bottom wall of the hydroponic dish 3, the upper end of the connecting hole 37 is aligned with the suction tube 32.

[0028] like Figure 1 , Figure 2 , Figure 5 As shown, the outer cylinder 33 is a square cylinder, and the inner moving rod 34 is a square rod.

[0029] like Figure 1 , Figure 2 As shown, an air pump 38 is provided on the upper wall of the base 1 , and the air pump 38 is connected to the air bag 13 through a vent pipe 43 , and the vent pipe 43 is provided with a one-way valve.

[0030] like Figure 1 , Figure 2 , Figure 6 , Figure 7As shown, the seedling raising assembly 4 includes a seedling raising rack 39 and a seedling raising tube 40. The seedling raising rack 39 is arranged in a fan shape. The seedling raising tube 40 is evenly penetrated through the seedling raising rack 39. A water-permeable hole 41 is provided at the bottom of the seedling raising tube 40. A limiting skirt 42 is provided at the edge of the seedling raising rack 39. The limiting skirt 42 is at the outer wall of the hydroponic dish 3.

[0031] like Figure 1 , Figure 2 As shown, the water culture dish 3 is a fan-shaped trough.

[0032] When in use, plants are cultivated in the seedling tube 40. In the initial state, the sealing movable plate 15 is at the bottom of the irrigation tube 7. The air pump 38 is turned on, and the gas generated by the air pump 38 enters the air bag 13 through the ventilation pipe 43. The buoyancy of the air bag 13 increases, and the air bag 13 drives the counterweight plate 12 to rise, and the counterweight plate 12 drives the lifting rod 14 to rise, and the lifting rod 14 drives the sealing movable plate 15 to rise, and the pressure in the irrigation tube 7 on the lower side of the sealing movable plate 15 is reduced, so that the nutrient solution in the liquid supply tube 31 enters the connecting hole 37 through the suction tube 32, and enters the irrigation pipe 36 through the connecting hole 37, and enters the irrigation pipe 36 through the irrigation pipe. 36 enters the lower side of the sealing movable plate 15 in the irrigation tube 7, the sealing movable plate 15 rises to the partition 11, the air pump 38 is turned off, the solenoid valve 44 is opened, the gas in the airbag 13 enters the air inlet pipe 21, and then the gas enters the venturi tube 18, the water suction pipe 19 sucks water from the external water source, and the gas and water are sprayed out from the atomizing nozzle 20. After the airbag 13 is deflated, the airbag 13 shrinks under the action of elastic force, the buoyancy of the airbag 13 decreases, the counterweight plate 12 sinks, the counterweight plate 12 drives the lifting rod 14 to sink, the lifting rod 14 drives the sealing movable plate 15 to sink, and the sealing movable plate 15 pushes the irrigation tube 7. The nutrient solution enters the irrigation pipe 36, enters the outer cylinder 33 through the irrigation pipe 36, and then enters the hydroponic dish 3 through the connecting hole 37. As the liquid level of the nutrient solution in the hydroponic dish 3 rises, the buoyancy block 35 rises, and the buoyancy block 35 drives the inner moving rod 34 to rise, and the nutrient solution is absorbed by the nutrient soil in the seedling tube 40. At this time, the amount of nutrient solution decreases, the liquid level of the nutrient solution in the hydroponic dish 3 drops, and the buoyancy block 35 drops along with the nutrient solution liquid level. The air pump 38 is turned on, and the air pump 38 inflates the air bag 13 through the ventilation pipe 43. The buoyancy of the air bag 13 increases, and the air bag 13 drives the counterweight plate 12 to rise, and the counterweight plate 12 drives the lifting The lowering rod 14 rises, and the lifting rod 14 drives the sealing movable plate 15 to rise, and the nutrient solution enters the lower side of the sealing movable plate 15 in the irrigation tube 7. The liquid level of the nutrient solution in the hydroponic dish 3 continues to drop, and the buoyancy block 35 continues to drop. When the buoyancy block 35 drops to the inner bottom wall of the hydroponic dish 3, the inner movable rod 34 drops accordingly, and the upper end of the connecting hole 37 is aligned with the liquid suction tube 32. When the sealing movable plate 15 continues to rise, the nutrient solution in the liquid supply tube 31 enters the connecting hole 37 from the liquid suction tube 32, enters the irrigation tube 36 through the connecting hole 37, and then enters the irrigation tube 7, and the nutrient solution is automatically replenished; The inflation and deflation of the airbag 13 drives the counterweight plate 12 to rise and fall, the counterweight plate 12 drives the boss 30 to rise and fall, the boss 30 drives the linkage rod 29 to rise and fall, the linkage rod 29 drives the connecting rod 28 to rise and fall, the connecting rod 28 drives the transmission rack 27 to rise and fall, the transmission rack 27 drives the transmission gear 26 to rotate forward and reversely, the transmission gear 26 drives the gear shaft 25 to rotate forward and reversely, the gear shaft 25 drives the active bevel gear 22 to rotate forward and reversely, the active bevel gear 22 drives the driven bevel gear 23 to rotate forward and reversely, the driven bevel gear 23 drives the rotating rod 17 to rotate, the rotating rod 17 drives the swing rod 16 to swing back and forth, thereby driving the atomizing nozzle 20 to spray the plants in the seedling tube 40 to achieve humidity regulation.

[0033] 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.

[0034] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0035] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A hydroponic device based on tidal irrigation, comprising a base (1), characterized in that: The upper wall of the base (1) is provided with a support rod 1 (2), the upper end of the support rod 1 (2) is provided with a hydroponic dish (3), a seedling raising component (4) is provided in the hydroponic dish (3), an automatic humidity regulating component (5) is provided on the upper wall of the hydroponic dish (3), a support rod 2 (6) is provided on the upper wall of the base (1), an irrigation cylinder (7) is provided at the upper end of the support rod 2 (6), a buoyancy regulating lifting component (8) is provided in the irrigation cylinder (7), a swing regulating component (9) is provided on the automatic humidity regulating component (5) and the buoyancy regulating lifting component (8), and an automatic liquid supply component (10) is provided on the upper wall of the base (1).

2. The hydroponic device based on tidal irrigation according to claim 1, characterized in that: A partition (11) is provided inside the irrigation cylinder (7), and water is filled on the upper side of the partition (11).

3. The hydroponic device based on tidal irrigation according to claim 2, characterized in that: The buoyancy regulating lifting assembly (8) comprises a counterweight plate (12), an airbag (13), a lifting rod (14) and a sealing movable plate (15); the counterweight plate (12) is arranged in the irrigation tube (7); the counterweight plate (12) is arranged on the upper side of the partition (11); the airbag (13) is arranged on the upper wall of the counterweight plate (12); the upper end of the lifting rod (14) is arranged at the center of the lower wall of the counterweight plate (12); the lifting rod (14) passes through the counterweight plate (12); the sealing movable plate (15) is arranged at the lower end of the lifting rod (14); and the sealing movable plate (15) is arranged on the lower side of the partition (11) in the irrigation tube (7).

4. The hydroponic device based on tidal irrigation according to claim 3, characterized in that: The automatic humidity adjustment component (5) comprises a swing rod (16), a rotating rod (17), a venturi tube (18), a water suction pipe (19), an atomizing nozzle (20) and an air inlet pipe (21); the rotating rod (17) is rotatably arranged on the upper wall of the hydroponic dish (3); the swing rod (16) is arranged at the upper end of the rotating rod (17); the swing rod (16) is a hollow rod; the atomizing nozzle (20) is evenly arranged on the lower wall of the swing rod (16); the venturi tube (18) is arranged at the upper end of the rotating rod (17); ) is arranged at the end of the swing rod (16), the air inlet end of the Venturi tube (18) is connected to the swing rod (16), one end of the air inlet pipe (21) is connected to the air outlet end of the Venturi tube (18), the other end of the air inlet pipe (21) is connected to the air bag (13), a one-way valve is provided on the air inlet pipe (21), one end of the water suction pipe (19) is connected to the negative pressure end of the Venturi tube (18), and a solenoid valve (44) is provided on the air inlet pipe (21).

5. The hydroponic device based on tidal irrigation according to claim 4, characterized in that: The swing adjustment assembly (9) comprises a driving bevel gear (22), a driven bevel gear (23), a gear frame (24), a gear shaft (25), a transmission gear (26), a transmission rack (27), a connecting rod (28), a linkage rod (29) and a boss (30), wherein the boss (30) is arranged on the outer wall of the counterweight plate (12), the lower end of the linkage rod (29) is arranged on the upper wall of the boss (30), the gear frame (24) is arranged on the upper wall of the hydroponic dish (3), and the gear shaft (25) penetrates the boss (30) arranged on the outer wall of the counterweight plate (12). On the gear rack (24), the driving bevel gear (22) is arranged at one end of the gear shaft (25), the driven bevel gear (23) is arranged on the rotating rod (17), the driving bevel gear (22) meshes with the driven bevel gear (23), the transmission gear (26) is arranged at the other end of the gear shaft (25), the connecting rod (28) is arranged at the upper end of the linkage rod (29), the transmission rack (27) is arranged at the end of the connecting rod (28), and the transmission rack (27) meshes with the transmission gear (26).

6. The hydroponic device based on tidal irrigation according to claim 5, characterized in that: The automatic liquid supply assembly (10) comprises a liquid supply cylinder (31), a liquid pipette (32), an outer cylinder (33), an inner moving rod (34), a buoyancy block (35) and an irrigation pipe (36); the liquid supply cylinder (31) is arranged on the upper wall of the base (1); the outer cylinder (33) is a hollow cavity with an upper end opening; the upper end of the outer cylinder (33) penetrates the bottom of the hydroponic dish (3); the inner moving rod (34) is slidably arranged in the outer cylinder (33); the upper end of the inner moving rod (34) is located in the hydroponic dish (3); the buoyancy block (35) is arranged at the upper end of the inner moving rod (34); a connecting hole (37) is provided in the inner moving rod (34); the connecting hole The lower end of the connecting hole (37) penetrates the lower end of the inner moving rod (34), the upper end of the connecting hole (37) penetrates the upper end side wall of the inner moving rod (34), one end of the liquid suction pipe (32) penetrates the lower part of the outer wall of the liquid supply cylinder (31), the other end of the liquid suction pipe (32) penetrates the upper end of the outer wall of the outer cylinder (33), one end of the irrigation pipe (36) penetrates the lower end of the outer cylinder (33), the other end of the irrigation pipe (36) penetrates the lower end of the irrigation cylinder (7), a one-way valve is provided on the liquid suction pipe (32), and when the buoyancy block (35) is located on the inner bottom wall of the hydroponic dish (3), the upper end of the connecting hole (37) is aligned with the liquid suction pipe (32).

7. The hydroponic device based on tidal irrigation according to claim 6, characterized in that: The outer cylinder (33) is a square cylinder, and the inner moving rod (34) is a square rod.

8. The hydroponic device based on tidal irrigation according to claim 7, characterized in that: An air pump (38) is provided on the upper wall of the base (1); the air pump (38) is connected to the air bag (13) via a vent pipe (43); the vent pipe (43) is provided with a one-way valve.

9. The hydroponic device based on tidal irrigation according to claim 8, characterized in that: The seedling raising assembly (4) comprises a seedling raising frame (39) and a seedling raising tube (40); the seedling raising frame (39) is arranged in a fan shape; the seedling raising tube (40) is evenly penetrated through the seedling raising frame (39); a water permeable hole (41) is provided at the bottom of the seedling raising tube (40); a limiting skirt (42) is provided at the edge of the seedling raising frame (39); and the limiting skirt (42) is located at the outer wall of the hydroponic dish (3).

10. The hydroponic device based on tidal irrigation according to claim 9, characterized in that: The hydroponic dish (3) is a fan-shaped trough.

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