Automatic opening and closing water and fertilizer integrated device

Abstract

This invention belongs to the field of agricultural fertilization technology. It discloses an automatic fertigation device, comprising a fertigation storage tank, a water level controller, a liquid reservoir, a fertilizer controller, a fertilizer collector, an air inlet valve, a second connecting pipe, an air inlet pipe, a drain pipe, an overflow pipe, and a fertilizer pipe. The top of the fertigation storage tank is connected to the air inlet valve located within the water level controller via the air inlet pipe. The fertigation storage tank is connected to the liquid reservoir via the second connecting pipe. A first inverted U-shaped tube is provided on the side wall of the liquid reservoir, with one end opening at the bottom of the liquid reservoir and the other end opening at the bottom of the water level controller. The water level controller is connected to the fertilizer controller via the drain pipe. A second inverted U-shaped tube is provided on the side wall of the fertilizer controller, with one end opening at the bottom of the fertilizer controller and the other end opening at the bottom of the fertilizer collector. The advantages of this invention are that it requires no additional energy, does not use electronic equipment for control, is simple and easy to operate, and achieves automatic control of fertilization throughout the entire crop growth process.

Description

Technical Field

[0001] This invention belongs to the field of agricultural fertilization technology, specifically relating to an automatic start-stop integrated water and fertilizer device. Background Technology

[0002] Fertilization is essential for ensuring crop nutrient supply in agricultural production. However, with a decreasing number of young and middle-aged laborers engaged in agriculture and an accelerating aging of the agricultural workforce, the labor costs associated with tillage and fertilization are increasing. Therefore, changing agricultural fertilization methods to reduce labor intensity and workload can effectively improve agricultural productivity. Agricultural mechanization and automation are the future trends in agriculture. However, some hilly areas are not suitable for mechanized farming. Firstly, the fields are too small for agricultural machinery to work in, and secondly, the numerous terraced fields prevent most agricultural machinery from accessing the fields. Currently, automated control devices for agricultural fertilization are beginning to be used in actual production. However, most of these automated control devices rely on power lines or solar power, requiring various energy inputs for control. Existing automated control devices mostly use electronic control methods, and electronic products exposed to sun and rain outdoors are prone to malfunctions, limiting their lifespan. In addition, most electronically controlled automatic fertilization devices are complex to operate, requiring professional training to operate and frequent maintenance and guidance from technicians, which increases technical service costs and fails to increase farmers' enthusiasm for adopting automated control.

[0003] Therefore, a new automatic start-stop water and fertilizer integration device needs to be designed. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic start-stop integrated water and fertilizer device to solve the problem of increasingly high labor costs in farming and fertilization as mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides an automatic start-stop integrated water and fertilizer device, comprising a water and fertilizer storage tank, a water level controller, a liquid reservoir, a fertilizer controller, a fertilizer collector, an air inlet valve, a second connecting pipe, an air inlet pipe, a drain pipe, an overflow pipe, and a fertilizer application pipe.

[0006] The top of the water and fertilizer storage tank is equipped with a spiral sealing cap for sealing; the top of the water and fertilizer storage tank is connected to one end of the air inlet pipe, and the bottom of the water and fertilizer storage tank is also connected to one end of the second connecting pipe; the other end of the air inlet pipe is connected to the air inlet valve; the air inlet valve is located inside the water level controller; the air inlet valve includes an air inlet valve pipe, a plug, a connecting rod, and a float; the top end of the air inlet valve pipe is connected to the air inlet pipe, the plug is movably disposed inside the air inlet valve pipe, and the bottom of the plug is fixedly connected to the float located below the connecting rod via the connecting rod; the other end of the second connecting pipe is connected to the upper part of the liquid reservoir; a through-hole is fixedly provided on the side wall of the liquid reservoir. The first inverted U-shaped tube in the middle of its side wall has one end open in the lower part of the liquid storage tank and the other end open in the lower part of the water level controller. The bottom of the water level controller is connected to one end of the drain pipe, and the upper part of the side wall of the water level controller is connected to one end of the overflow pipe. The other ends of both the drain pipe and the overflow pipe are connected to the upper part of the fertilizer controller. A second inverted U-shaped tube passing through the middle of its side wall is fixedly installed on the side wall of the fertilizer controller. One end of the second inverted U-shaped tube is opened in the lower part of the fertilizer controller, and the other end is opened in the lower part of the fertilizer collector. A fertilizer pipe is installed at the bottom of the fertilizer collector.

[0007] In one specific embodiment, the automatic opening and closing water and fertilizer integration device further includes a first connecting pipe; one end of the first connecting pipe is connected to the bottom of the water and fertilizer storage tank, and the other end of the first connecting pipe is connected to the upper part of the fertilizer collection device.

[0008] In one specific embodiment, a first flow regulating valve is provided on the first connecting pipe, and a second flow regulating valve is provided on the second connecting pipe.

[0009] In one specific embodiment, a third flow regulating valve is provided on the drain pipe.

[0010] In one specific embodiment, the liquid reservoir and the first inverted U-shaped tube are integrally formed, and the fertilizer controller and the second inverted U-shaped tube are also integrally formed.

[0011] In one specific implementation, the float is always positioned below the level of the overflow pipe on the side wall of the level controller; the plug is used to seal the air inlet pipe.

[0012] In one specific embodiment, the two ends of the second inverted U-shaped tube have different heights, with the height of the opening end located inside the fertilizer controller being higher than the height of the opening end located inside the fertilizer collector.

[0013] In one specific embodiment, the bottom of the water and fertilizer storage tank is higher than the top of the liquid storage container; the bottom of the water level controller is higher than the top of the fertilizer controller.

[0014] In one specific embodiment, the position where the liquid reservoir is connected to the first inverted U-shaped tube is the highest position in the first inverted U-shaped tube; the position where the fertilizer controller is connected to the second inverted U-shaped tube is the highest position in the second inverted U-shaped tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention proposes a new automated fertigation device with the advantages of requiring no additional energy, not using electronic devices for control, being simple and easy to operate, and realizing automatic control of fertilization throughout the entire crop growth process.

[0017] This invention enables automatic, periodic fertilization without additional power by injecting water-soluble fertilizer only once, making it particularly suitable for mountainous areas where it is inconvenient to run a power source.

[0018] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The present invention will now be described in further detail. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0021] The components include: 1. Water and fertilizer storage tank; 2. Water level controller; 3. Liquid reservoir; 4. Fertilizer controller; 5. Fertilizer collector; 6. Air inlet valve; 11. Spiral sealing cap; 31. First inverted U-shaped pipe; 41. Second inverted U-shaped pipe; 61. Air inlet valve pipe; 71. First connecting pipe; 72. Second connecting pipe; 73. Air inlet pipe; 74. Drain pipe; 75. Overflow pipe; 76. Fertilizer pipe; 711. First flow regulating valve; 721. Second flow regulating valve; 741. Third flow regulating valve. Detailed Implementation

[0022] The embodiments of the present invention will be described in detail below. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Example 1

[0024] The present invention provides an automatic opening and closing water and fertilizer integrated device, including a water and fertilizer storage tank 1, a water level controller 2, a liquid storage tank 3, a fertilizer controller 4, a fertilizer collector 5, an air inlet valve 6, a first connecting pipe 71, a second connecting pipe 72, an air inlet pipe 73, a drain pipe 74, an overflow pipe 75, and a fertilizer pipe 76.

[0025] The top of the water and fertilizer storage tank 1 is provided with a spiral sealing cap 11 for sealing; the spiral sealing cap 11 can be opened to inject liquid containing various fertilizers into it, which is called water-soluble fertilizer.

[0026] The top of the water and fertilizer storage tank 1 is connected to one end of the air inlet pipe 73, and the bottom of the water and fertilizer storage tank 1 is also connected to one end of the second connecting pipe 72; the other end of the air inlet pipe 73 is connected to the air inlet valve 6.

[0027] An air inlet valve 6 is installed inside the water level controller 2. The air inlet valve 6 includes an air inlet valve pipe 61, a plug, a connecting rod, and a float. The top of the air inlet valve pipe is connected to the air inlet pipe 73. The plug is movably installed inside the air inlet valve pipe, and the bottom of the plug is fixedly connected to the float located below the connecting rod via the connecting rod. When liquid continuously flows into the water level controller 2, causing the liquid level to rise, the float inside the air inlet valve 6 also rises continuously, driving the plug to rise via the connecting rod. Ultimately, the plug blocks the air inlet pipe 73, preventing air from entering the water-fertilizer storage tank 1. Under atmospheric pressure, this prevents the first connecting pipe 71 and the second connecting pipe 72 below from discharging the water-fertilizer liquid. When the liquid level in the water level controller 2 gradually decreases, and the float descends with the liquid level, the air inlet pipe 73 reopens, allowing air to enter the water-fertilizer storage tank 1. The bottom of the water-fertilizer storage tank 1 can then discharge water-fertilizer liquid from the first connecting pipe 71 and the second connecting pipe 72.

[0028] The other end of the second connecting pipe 72 is connected to the upper part of the liquid reservoir 3.

[0029] A first inverted U-shaped tube 31 is fixedly installed on the side wall of the liquid reservoir 3, passing through the middle of its side wall. One end of the first inverted U-shaped tube 31 is located in the lower part of the liquid reservoir 3, and the other end is located in the lower part of the water level controller 2.

[0030] The bottom of the water level controller 2 is connected to one end of the drain pipe 74, and the upper part of the side wall of the water level controller 2 is connected to one end of the overflow pipe 75. The other ends of both the drain pipe 74 and the overflow pipe 75 are connected to the upper part of the fertilizer controller 4. The upper part of the water level controller 2 is connected to the overflow pipe 75. When the water level in the water level controller reaches the overflow control line, it begins to discharge from the overflow pipe to the fertilizer controller, ensuring that the water level in the water level controller is within the overflow line.

[0031] A second inverted U-shaped tube 41 is fixedly installed on the side wall of the fertilizer controller 4, passing through the middle of its side wall. One end of the second inverted U-shaped tube 41 is located in the lower part of the fertilizer controller 4, and the other end is located in the lower part of the fertilizer collector 5.

[0032] The fertilizer collector 5 is equipped with a fertilizer pipe 76 at the bottom, which transports the water-soluble fertilizer in the fertilizer collector 5 to the field.

[0033] One end of the first connecting pipe 71 is connected to the bottom of the water and fertilizer storage tank 1, and the other end of the first connecting pipe 71 is connected to the upper part of the fertilizer collector 5.

[0034] A first flow regulating valve 711 is installed on the first connecting pipe 71, and a second flow regulating valve 721 is installed on the second connecting pipe 72. The second flow regulating valve 721 can regulate the speed at which the liquid in the water-fertilizer storage tank 1 enters the liquid reservoir 3. The height of the liquid reservoir 3 is higher than that of the water level controller 2. When the liquid flowing into the liquid reservoir 3 reaches a certain height, the liquid reservoir will flow by gravity through the first inverted U-shaped pipe 31 to the water level controller 2, thus forming an inverted U-shaped siphon. The inverted U-shaped siphon ensures that the water level in the liquid reservoir is consistent with the water level in the water level controller.

[0035] Liquid continuously flows into the water level controller from the reservoir, causing the water level to rise. When it reaches the set height, the float of the air inlet valve 6 in the water level controller closes the air inlet pipe through the connecting rod and the plug. At the same time, the float also seals the lower opening of the air inlet valve pipe, preventing liquid from entering the air inlet valve.

[0036] When the air inlet pipe is closed, air cannot enter the water-fertilizer storage tank 1. Under the influence of atmospheric pressure, the liquid discharge pipes in the water-fertilizer storage tank 1 cannot discharge liquid. Therefore, the water-fertilizer storage tank stops flowing liquid into the reservoir. At this time, there is a certain level of liquid in the reservoir. Under the siphon effect formed by the first inverted U-shaped pipe 31, liquid still flows into the water level controller, causing the water level in the water level controller to reach the same height as the reservoir. The drain pipe 74 at the bottom of the water level controller discharges the liquid from the water level controller and the reservoir together into the fertilizer controller.

[0037] The fertilizer controller injects liquid into the fertilizer collector through the second inverted U-shaped pipe 41. When the liquid in the fertilizer controller reaches a certain level, it forms an inverted U-shaped siphon with the fertilizer collector, thereby discharging the liquid in the fertilizer controller into the fertilizer collector.

[0038] The drain pipe 74 is equipped with a third flow regulating valve 741, which can control the liquid discharge speed of the water level controller 2.

[0039] A vent hole can also be provided in the middle of the air inlet valve pipe. After the liquid level submerges the vent hole, a double seal is formed.

[0040] The liquid reservoir 3 and the first inverted U-shaped tube 31 are integrally formed, as are the fertilizer controller 4 and the second inverted U-shaped tube 41.

[0041] The float in the water level controller 2 is always lower than the position on the side wall of the water level controller 2 that is connected to the overflow pipe 75; the plug is used to seal the air inlet pipe 73.

[0042] The two ends of the second inverted U-shaped tube 41 have different heights, with the height of the opening end set in the fertilizer controller 4 being higher than the height of the opening end set in the fertilizer collector 5.

[0043] The bottom of the water and fertilizer storage tank 1 is higher than the top of the liquid storage container 3; the bottom of the water level controller 2 is higher than the top of the fertilizer controller 4.

[0044] The position where the liquid reservoir 3 is connected to the first inverted U-shaped tube 31 is the highest position in the first inverted U-shaped tube 31; the position where the fertilizer controller 4 is connected to the second inverted U-shaped tube 41 is the highest position in the second inverted U-shaped tube 41.

[0045] In use, a certain amount of water-soluble fertilizer is first added to the fertilizer storage tank. The fertilizer solution is then delivered to the fertilizer collector via the first connecting pipe 71, which then delivers the fertilizer to the field for crop fertilization. Simultaneously, the fertilizer storage tank also supplies fertilizer to the liquid reservoir via the second connecting pipe 72. When the liquid level in the liquid reservoir reaches the height where the first inverted U-shaped pipe 31 can flow out, the liquid begins to flow towards the water level controller, forming an inverted U-shaped siphon connector, causing the liquid level in the water level controller to rise. As the liquid level in the water level controller rises, it triggers the closure of the air inlet valve. After the float at the lower end of the air inlet valve is submerged, an airtight environment is formed in the air inlet valve pipe within the water level controller. Therefore, the air inlet pipe connected to the air inlet valve cannot supply air to the fertilizer storage tank. When no air enters the fertilizer storage tank, the air pressure inside the tank is lower than the external atmospheric pressure. Consequently, the first connecting pipe 71 and the second connecting pipe 72 connecting the fertilizer storage tank cannot discharge liquid, achieving an automatic shut-off state for the fertilization device. The liquid in the reservoir and the water level controller will reach the same level due to the siphon effect of the inverted U-shaped siphon. Then, the fertilization solution in the water level controller flows to the fertilizer controller through the drain pipe 74. The fertilizer controller can collect a certain amount of fertilization solution. When the amount exceeds a certain limit, the fertilization solution begins to flow by gravity through the second inverted U-shaped pipe 41 into the fertilizer collector, forming a siphon effect. When the amount of fertilization solution set by the fertilizer controller is not reached, the entire fertilization system stops applying water-soluble fertilizer to the field. As the fertilization solution in the water level controller is continuously discharged, the float rod descends with the float, the air inlet valve opens, and the air inlet pipe connected to the fertilization storage tank begins to introduce air into the upper part of the fertilization storage tank. This causes the fertilization storage tank to begin discharging liquid outwards through the first connecting pipe 71 and the second connecting pipe 72, thus achieving the automatic start-up state of the fertilization device. The fertilization start-up and stop-up times are adjusted by the flow regulating valves on the first connecting pipe 71, the second connecting pipe 72, and the drain pipe 74.

[0046] In one specific embodiment, the inner diameter of the first connecting pipe 71 is 2.5 cm and its length is greater than 2 meters; the inner diameter of the second connecting pipe 72 is 2.5 cm and its length is greater than 2 meters; the inner diameter of the air inlet pipe 73 is 6 cm; the inner diameter of the drain pipe 74 is 2.5 cm; the inner diameter of the overflow pipe 75 is 4 cm; the inner diameters of the first inverted U-shaped pipe 31 and the second inverted U-shaped pipe 41 are both 2.5 cm; the volume of the water and fertilizer storage tank 1 is greater than 150 L; the water and fertilizer storage tank 1 is cylindrical with a base diameter of 60 cm; the height of the water and fertilizer storage tank 1 is 30 cm higher than the water level controller, forming a gravity-flow height difference; the height of the water level controller is 30 cm higher than the fertilizer controller; and the height of the fertilizer controller is 30 cm higher than the fertilizer collector, forming a gravity-flow height difference.

[0047] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions and substitutions can be made without departing from the inventive concept, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. An automatic start-stop integrated water and fertilizer device, characterized in that, It includes a water and fertilizer storage tank (1), a water level controller (2), a liquid storage tank (3), a fertilizer controller (4), a fertilizer collection device (5), an air inlet valve (6), a second connecting pipe (72), an air inlet pipe (73), a drain pipe (74), an overflow pipe (75), and a fertilizer pipe (76). The top of the water and fertilizer storage tank (1) is provided with a spiral sealing cap (11) for sealing; the top of the water and fertilizer storage tank (1) is connected to one end of the air inlet pipe (73), and the bottom of the water and fertilizer storage tank (1) is also connected to one end of the second connecting pipe (72); the other end of the air inlet pipe (73) is connected to the air inlet valve (6); the air inlet valve (6) is located inside the water level controller (2); the air inlet valve (6) includes an air inlet valve pipe, a plug, a connecting rod and a float, the top end of the air inlet valve pipe is connected to the air inlet pipe (73), the plug is movably located inside the air inlet valve pipe, and the bottom of the plug is fixedly connected to the float located below the connecting rod through the connecting rod; the other end of the second connecting pipe (72) is connected to the upper part of the liquid reservoir (3); a hole is fixedly provided on the side wall of the liquid reservoir (3) through the middle of its side wall. The first inverted U-shaped tube (31) has one end open in the lower part of the reservoir (3) and the other end open in the lower part of the water level controller (2). The bottom of the water level controller (2) is connected to one end of the drain pipe (74), and the upper part of the side wall of the water level controller (2) is connected to one end of the overflow pipe (75). The other ends of the drain pipe (74) and the overflow pipe (75) are both connected to the upper part of the fertilizer controller (4). The side wall of the fertilizer controller (4) is fixedly provided with a second inverted U-shaped tube (41) that passes through the middle of its side wall. One end of the second inverted U-shaped tube (41) is opened in the lower part of the fertilizer controller (4), and the other end is opened in the lower part of the fertilizer collector (5). The bottom of the fertilizer collector (5) is provided with a fertilizer pipe (76). The automatic opening and closing water and fertilizer integration device also includes a first connecting pipe (71); one end of the first connecting pipe (71) is connected to the bottom of the water and fertilizer storage tank (1), and the other end of the first connecting pipe (71) is connected to the upper part of the fertilizer collection device (5). The openings at both ends of the second inverted U-shaped tube (41) are at different heights, with the opening in the fertilizer controller (4) being higher than the opening in the fertilizer collector (5). The bottom of the water and fertilizer storage tank (1) is higher than the top of the liquid storage tank (3); the bottom of the water level controller (2) is higher than the top of the fertilizer controller (4).

2. The automatic start-stop integrated water and fertilizer device according to claim 1, characterized in that, The first connecting pipe (71) is provided with a first flow regulating valve (711), and the second connecting pipe (72) is provided with a second flow regulating valve (721).

3. The automatic start-stop integrated water and fertilizer device according to claim 1, characterized in that, A third flow regulating valve (741) is provided on the drain pipe (74).

4. The automatic start-stop integrated water and fertilizer device according to claim 1, characterized in that, The liquid reservoir (3) and the first inverted U-shaped tube (31) are integrally formed, as are the fertilizer controller (4) and the second inverted U-shaped tube (41).

5. The automatic start-stop integrated water and fertilizer device according to claim 1, characterized in that, The float is always lower than the position on the side wall of the water level controller (2) where it is connected to the overflow pipe (75); the plug is used to seal the air inlet pipe (73).

6. The automatic start-stop integrated water and fertilizer device according to claim 1, characterized in that, The position where the liquid reservoir (3) is connected to the first inverted U-shaped tube (31) is the highest position in the first inverted U-shaped tube (31); the position where the fertilizer controller (4) is connected to the second inverted U-shaped tube (41) is the highest position in the second inverted U-shaped tube (41).

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