Intelligent water and fertilizer integrated drip irrigation system for ginger planting

Abstract

The invention discloses an intelligent water and fertilizer integrated drip irrigation system for ginger planting, which belongs to the field of agricultural machinery and is characterized by comprising a water pump, a filter, a blow-down valve, a pipeline, a water dropper and a spray head, an outlet of the water pump is connected with the blow-down valve, the filter is installed on the blow-down valve, and an outlet of the filter is connected with the pipeline. The water dropper comprises a water dropper expansion pipe and a water dropper shell; the spray head comprises a filter sheet, a spray head expansion pipe, a spray head shell and a nozzle; the blow-down valve comprises a valve body, a valve core and a spring; the upper end of the valve body is provided with a water inlet, the lower end is provided with a drain outlet, and the middle is provided with a water outlet; the valve core is positioned in the valve body; the valve body water outlet is connected with a filter. Compared with the prior art, the device has the advantages of being capable of conducting drip irrigation and spraying operation.

Description

Technical Field

[0001] The invention relates to agricultural machinery, in particular to an intelligent water-fertilizer integrated drip irrigation system for ginger planting. Background Art

[0002] Ginger is a high-value-added economic crop that prefers moisture and avoids waterlogging. The precise control of water and fertilizer is the core link that affects the yield and quality. Although the traditional drip irrigation system can achieve the water and fertilizer delivery at the root, there are significant technical bottlenecks: on the one hand, the existing device has a single function and can only perform underground drip irrigation operations, which cannot meet the urgent needs of ginger for foliar nutrition in the middle and late stages of growth. Studies have shown that foliar fertilization can quickly supplement trace elements such as zinc and boron, increase the chlorophyll content of ginger leaves by 15%-22%, promote the transfer of photosynthetic products to the rhizomes, and increase the expansion rate of ginger pieces by more than 30%. However, the traditional drip irrigation system cannot take into account the foliar nutrition function, which requires growers to purchase additional spray equipment, resulting in repeated investment in equipment and increased operational complexity.

[0003] On the other hand, traditional drip irrigation systems generally have the problem of dripper clogging. Experimental data show that the clogging rate of conventional drippers during the ginger planting season is as high as 40%-60%, resulting in a 28%-35% decrease in irrigation uniformity, seriously affecting the efficiency of water and fertilizer utilization.

[0004] Therefore, there is an urgent need to develop a new type of irrigation device that integrates drip irrigation and spray dual modes and has efficient anti-blocking characteristics to meet the special needs of water and fertilizer management throughout the entire ginger planting cycle and break through the bottleneck of existing technologies that restrict ginger yield and quality improvement. Summary of the invention

[0005] The technical task of the present invention is to provide an intelligent water-fertilizer integrated drip irrigation system for ginger planting in view of the deficiencies of the above prior art.

[0006] The technical solution of the present invention to solve its technical problem is: an intelligent water-fertilizer integrated drip irrigation system for ginger planting, characterized in that it includes a water pump, a filter, a pipeline, a dripper and a nozzle; the dripper includes a dripper expansion tube and a dripper shell; the dripper expansion tube is a tubular structure, the dripper expansion tube has a certain elasticity, one end of the dripper expansion tube is installed on the pipeline, an opening is provided on the pipeline, and the dripper expansion tube cavity is connected with the pipeline cavity through the opening; the dripper shell is sleeved on the outside of the dripper expansion tube, and a sandwich structure is formed between the dripper shell and the dripper expansion tube; a drip hole is provided on the dripper shell at a position outside the dripper expansion tube; the A dripper plug is arranged in the expansion tube of the dripper; the diameter of the dripper plug is slightly larger than the inner diameter of the dripper expansion tube; the nozzle comprises a nozzle expansion tube, a nozzle shell and a nozzle; the nozzle expansion tube is a tubular structure, the nozzle expansion tube has a certain elasticity, one end of the nozzle expansion tube is installed on the pipeline, an opening is arranged on the pipeline, and the nozzle expansion tube cavity is connected with the pipeline cavity through the opening; the nozzle shell is sleeved on the outer side of the nozzle expansion tube, and a sandwich structure is formed between the nozzle shell and the nozzle expansion tube; a nozzle plug is arranged in the nozzle expansion tube; the diameter of the nozzle plug is slightly larger than the inner diameter of the nozzle expansion tube; the nozzle shell is installed with a nozzle.

[0007] The outlet of the water pump is connected to a drain valve, the filter is installed on the drain valve, and the outlet of the filter is connected to a pipeline; the drain valve includes a valve body, a valve core and a spring; a water inlet is provided at the upper end of the valve body, a drain outlet is provided at the lower end, and a water outlet is provided in the middle; the valve core is located in the valve body, the upper end of the valve core is a thick end, close to the water inlet, and when the valve core moves upward, the water inlet can be blocked; the lower end of the valve core is a thin end, close to the drain outlet, and when the valve core moves downward, the drain outlet can be blocked; a spring is provided between the valve body and the valve core, and an upward elastic force is formed on the valve core by the spring, and the valve core is pushed upward by the elastic force to block the water inlet; a cavity is formed in the middle of the valve body, and the water outlet is located in the valve body cavity; the water outlet of the valve body is connected to the filter.

[0008] The nozzle is provided with a ground spike, which is a rod-shaped structure with a pointed tip at the lower end.

[0009] The inner wall of the valve body is provided with cylindrical surfaces at the positions of the upper and lower ends of the valve core; wherein the cylindrical surface where the upper end of the valve core is located is the upper cylindrical surface, and the cylindrical surface where the lower end of the valve core is located is the lower cylindrical surface; the upper and lower ends of the valve core are respectively located in the upper cylindrical surface and the lower cylindrical surface and move up and down, and the upper and lower ends of the valve core are respectively sealed with the upper cylindrical surface and the lower cylindrical surface; wherein the lower half of the upper cylindrical surface and the upper half of the lower cylindrical surface are respectively provided with a series of vertical grooves, and the grooves are connected to the cavity in the middle of the valve body; in the natural state, the valve core is pushed upward by the spring, and the grooves of the lower cylindrical surface are exposed below the valve core, and the cavity in the middle of the valve body and the sewage outlet are connected through the grooves of the lower cylindrical surface; when the water pressure pushes the valve core downward, the grooves of the upper cylindrical surface are exposed above the valve core, and the cavity in the middle of the valve body and the water inlet are connected through the grooves of the upper cylindrical surface, and the sewage outlet of the valve body is blocked by the valve core at this time.

[0010] The lower end of the dripper plug is fixed on the dripper shell.

[0011] The nozzle is provided with a filter sheet, and the filter sheet is located between the pipeline opening and the nozzle expansion pipe.

[0012] The upper end of the nozzle plug is fixed on the nozzle housing.

[0013] Compared with the prior art, the present invention has the following outstanding beneficial effects:

[0014] 1. Both drip irrigation and spraying can be carried out through one system;

[0015] 2. Top spraying can only spray the upper surface of the leaves. By spraying upwards from the ground, you can spray the lower surface of the leaves. When the droplets pass through the gaps in the leaves and fall from top to bottom, they can also spray the upper surface of the leaves.

[0016] 3. Drip irrigation or spraying can be controlled by water pressure. When the water pressure is low, the dripper is opened and the nozzle is closed; when the water pressure is high, the dripper is closed and the nozzle is opened;

[0017] 4. The gap of the dripper can be expanded and contracted, which helps to discharge the blockage;

[0018] 5. The filter and nozzle have built-in recoil function, which can effectively prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a pipeline structure diagram of the present invention.

[0020] Figure 2 It is the appearance diagram of the dripper of the present invention.

[0021] Figure 3 It is a diagram of the internal structure of the dripper of the present invention.

[0022] Figure 4 It is the appearance diagram of the nozzle of the present invention.

[0023] Figure 5 This is a cross-sectional view of the nozzle in its natural state.

[0024] Figure 6 This is a cross-sectional view of the nozzle in working state.

[0025] Figure 7 It is the appearance diagram of the sewage valve and the filter of the present invention.

[0026] Figure 8 This is a cross-sectional view of the sewage valve in its natural state.

[0027] Fig. 9 It is a schematic diagram of the valve body structure of the present invention.

[0028] Fig.10 This is a cross-sectional view of the drain valve in working condition.

[0029] Among them: 1-pipeline, 2-dripper, 3-sprinkler, 4-ground nail, 5-dripper shell, 6-drip hole, 7-dripper expansion tube, 8-dripper plug, 9-filter, 10-sprinkler shell, 11-sprinkler expansion tube, 12-sprinkler plug, 13-nozzle, 14-drain valve, 15-filter, 16-valve body, 17-valve core, 18-water inlet, 19-valve core upper end, 20-valve core lower end, 21-spring, 22-drain port, 23-water outlet, 24-cavity. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figures 1 to 10 As shown, the present invention includes a water pump, a filter 15, a drain valve 14, a pipe 1, a dripper 2 and a nozzle 3. The water pump is a power-adjustable water pump. The water pressure of the output water flow can be adjusted by adjusting the water pump power. The output water pressures of different magnitudes are used for drip irrigation and spraying operations, that is, when the water pressure is low, drip irrigation is performed, and when the water pressure is high, spraying is performed. The outlet of the water pump is connected to the drain valve 14, and the filter 15 is installed on the drain valve 14. The outlet of the filter 15 is connected to the pipe 1 with the dripper 2 and the nozzle 3, and drip irrigation and spraying operations are performed respectively through the dripper 2 and the nozzle 3.

[0032] The structure of the dripper 2 is as follows Figure 3As shown, it includes a dripper expansion tube 7 and a dripper shell 5. The dripper expansion tube 7 is a tubular structure, and the dripper expansion tube 7 has a certain elasticity. One end of the dripper expansion tube 7 is installed on the pipeline 1, and an opening is provided on the pipeline 1, through which the cavity of the dripper expansion tube 7 is connected with the cavity of the pipeline 1. The dripper shell 5 is sleeved on the outside of the dripper expansion tube 7, and a sandwich structure is formed between the dripper shell 5 and the dripper expansion tube 7. A drip hole 6 is provided on the dripper shell 5 at the position outside the dripper expansion tube 7, and the water in the interlayer flows out through the drip hole 6. A dripper plug 8 is provided in the dripper expansion tube 7. The lower end of the dripper plug 8 is fixed on the dripper shell 5, and the diameter of the dripper plug 8 is slightly larger than the inner diameter of the dripper expansion tube 7.

[0033] In the natural state and when the water pressure in the pipeline 1 is low, the dripper expansion tube 7 and the dripper plug 8 are in a sealed state, and water cannot drip at this time. When the water pressure reaches a certain value, the dripper expansion tube 7 expands under the action of the water pressure, and the diameter expands, so that water can flow out, enter the interlayer outside the dripper expansion tube 7 and flow out through the drip hole 6, thereby realizing the drip irrigation process.

[0034] When spraying is performed, since the water pressure during spraying is higher than the water pressure required for drip irrigation, the water pressure needs to be further increased. As the water pressure increases, the diameter of the dripper expansion tube 7 is further expanded by the water pressure, and the dripper expansion tube 7 blocks the drip hole 6, so that the drip hole 6 will no longer drip during the spraying operation.

[0035] When fine sand enters the dripper expansion tube 7 with the water flow, since the size of the gap between the dripper expansion tube 7 and the dripper plug 8 can be changed, the blocked sand will be discharged downward with the water flow when the gap becomes larger, thereby alleviating the blockage.

[0036] The structure of the nozzle 3 is as follows Figure 4 , 5, 6, including a ground nail 4, a filter 9, a nozzle expansion tube 11, a nozzle housing 10 and a nozzle 13. The ground nail 4 is a rod-shaped structure with a pointed head at the lower end, and the ground nail 4 is inserted into the ground when in use. Thereby, the position of the nozzle 3 can be fixed so that the nozzle 3 faces directly upward. The nozzle expansion tube 11 is a tubular structure, and the nozzle expansion tube 11 has a certain elasticity. One end of the nozzle expansion tube 11 is installed on the pipe 1, and an opening is provided on the pipe 1, through which the cavity of the nozzle expansion tube 11 is connected to the cavity of the pipe 1. A filter 9 is provided between the opening and the nozzle expansion tube 11, and the sand particles in the water are filtered out by the filter 9 to prevent it from entering the nozzle 3 and causing the nozzle 3 to be blocked. The nozzle housing 10 is sleeved on the outside of the nozzle expansion tube 11, and a sandwich structure is formed between the nozzle housing 10 and the nozzle expansion tube 11. A nozzle plug 12 is provided in the nozzle expansion tube 11. The upper end of the nozzle plug 12 is fixed on the nozzle housing 10, and the diameter of the nozzle plug 12 is slightly larger than the inner diameter of the nozzle expansion tube 11. The nozzle housing 10 is equipped with a nozzle 13, through which the water-soluble fertilizer or medicine is sprayed out in atomized form.

[0037] In the natural state and when the water pressure in the pipeline 1 is low, such as during drip irrigation, the nozzle expansion tube 11 and the nozzle plug 12 are in a sealed state, and water cannot drip. When the water pressure reaches the pressure required for spraying, the nozzle expansion tube 11 expands under the action of the water pressure, the diameter expands, and the water flows out and enters the nozzle 13 to atomize and spray out.

[0038] When the spraying is finished, the water pump stops, the water pressure in the pipeline 1 decreases, and the nozzle expansion tube 11 contracts. After the contraction, the water inside it will return from the filter plate 9 to the pipeline 1. In the process of returning, a recoil effect on the filter plate 9 is achieved, and the sand particles blocking the filter plate 9 can be washed down, thereby preventing the filter plate 9 from being blocked and extending the service life of the filter plate 9.

[0039] The structure of the drain valve 14 is as follows: Figures 7 to 10 As shown, it includes a valve body 16, a valve core 17 and a spring 21. The valve body 16 has a water inlet 18 at the upper end, a sewage outlet 22 at the lower end, and a water outlet 23 in the middle. The valve core 17 is located in the valve body 16, and the upper end 19 of the valve core is a thick end, close to the water inlet 18, and when the valve core 17 moves upward, the water inlet 18 can be blocked; the lower end 20 of the valve core is a thin end, close to the sewage outlet 22, and when the valve core 17 moves downward, the sewage outlet 22 can be blocked.

[0040] A spring 21 is provided between the valve body 16 and the valve core 17, and the spring 21 forms an upward elastic force on the valve core 17, which pushes the valve core 17 upward and blocks the water inlet 18. A cavity 24 is formed in the middle of the valve body 16, and the water outlet 23 is located in the valve body cavity 24.

[0041] like Fig. 9 As shown, the inner wall of the valve body 16 is provided with cylindrical surfaces at the positions of the upper end 19 and the lower end 20 of the valve core. For the convenience of description, the cylindrical surface where the upper end 19 of the valve core is located is referred to as the upper cylindrical surface 25, and the cylindrical surface where the lower end 20 of the valve core is located is referred to as the lower cylindrical surface 26. The upper and lower ends of the valve core 17 are located in the upper cylindrical surface 25 and the lower cylindrical surface 26 and move up and down, and the upper and lower ends of the valve core 17 form a seal with the upper cylindrical surface 25 and the lower cylindrical surface 26 respectively. A series of vertical grooves 27 and 28 are respectively provided in the lower half of the upper cylindrical surface 25 and the upper half of the lower cylindrical surface 26, and the grooves 27 and 28 are connected to the cavity 24 in the middle of the valve body 16. In the natural state, as Figure 8 As shown in FIG. 1 , the valve core 17 is pushed upward by the spring 21, and the groove 28 of the lower cylindrical surface 26 is exposed below the valve core 17. The cavity 24 in the middle of the valve body 16 and the drain port 22 are connected through the groove 28 of the lower cylindrical surface 26, so that the water in the valve body 16 and the pipeline 1 can be discharged from the drain port 22. When drip irrigation or spraying operation is performed, water is pumped into the drain valve 14 by a water pump to increase the pressure at the water inlet 18, and the valve core 17 is pushed downward by the pressure, as shown in FIG. Fig.10 As shown, the groove 27 of the upper cylindrical surface 25 is exposed above the valve core 17, and the cavity 24 in the middle of the valve body 16 and the water inlet 18 are connected through the groove 27 of the upper cylindrical surface 25. At this time, the valve body drain outlet 22 is blocked by the valve core 17, thereby connecting the water inlet 18 and the water outlet 23.

[0042] The water outlet 23 of the valve body is connected to the filter 15. When drip irrigation or spraying operation is performed, the water pump is started, and the valve core 17 is pushed downward by the water pressure, so that the water inlet 18 of the sewage valve is connected with the water outlet 23, and the water flows into the pipeline 1 system after being filtered by the filter 15 for drip irrigation and spraying operation; when the operation is completed, the water pump is turned off, the water pressure at the water inlet 18 of the sewage valve disappears, and the valve core 17 is pushed upward by the action of the spring 21, closing the water inlet 18 so that the sewage outlet 22 and the sewage valve 14 are connected. During operation, the diameters of the pipe 1, the dripper expansion tube 7 and the nozzle expansion tube 11 are expanded by the action of water pressure. After the water pump is turned off, the water pressure decreases, the dripper 2 and the nozzle 3 are closed, and the water in the pipe 1 system will flow back under the action of the residual pressure of the pipe 1, enter the drain valve 14 through the filter 15, and flow out from the drain port 22 of the drain valve 14. In this process, when the water flows through the filter 15 in the reverse direction, the filter 15 will be backflushed, the impurities attached to the filter will be peeled off, and the impurities will be discharged through the drain port 22 to prevent the filter from being blocked. Through the backflushing operation, the filter 15 can continue to work efficiently.

[0043] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to the present invention without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. An intelligent water-fertilizer integrated drip irrigation system for ginger planting, characterized in that: It comprises a water pump, a filter, a pipeline, a dripper and a nozzle; the dripper comprises a dripper expansion tube and a dripper shell; the dripper expansion tube is a tubular structure, has a certain elasticity, one end of the dripper expansion tube is installed on the pipeline, an opening is provided on the pipeline, and the cavity of the dripper expansion tube is connected with the cavity of the pipeline through the opening; the dripper shell is sleeved on the outside of the dripper expansion tube, and a sandwich structure is formed between the dripper shell and the dripper expansion tube; a dripping hole is provided on the dripper shell at the outside of the dripper expansion tube; a dripper plug is provided in the dripper expansion tube; the straight The diameter of the nozzle expansion tube is slightly larger than the inner diameter of the dripper expansion tube; the nozzle comprises a nozzle expansion tube, a nozzle shell and a nozzle; the nozzle expansion tube is a tubular structure, the nozzle expansion tube has a certain elasticity, one end of the nozzle expansion tube is installed on the pipeline, an opening is provided on the pipeline, and the nozzle expansion tube cavity is connected with the pipeline cavity through the opening; the nozzle shell is sleeved on the outer side of the nozzle expansion tube, and a sandwich structure is formed between the nozzle shell and the nozzle expansion tube; a nozzle plug is provided in the nozzle expansion tube; the diameter of the nozzle plug is slightly larger than the inner diameter of the nozzle expansion tube; the nozzle shell is installed with a nozzle.

2. The ginger planting intelligent water-fertilizer integrated drip irrigation system according to claim 1, characterized in that: The outlet of the water pump is connected to a drain valve, the filter is installed on the drain valve, and the outlet of the filter is connected to a pipeline; the drain valve includes a valve body, a valve core and a spring; a water inlet is provided at the upper end of the valve body, a drain outlet is provided at the lower end, and a water outlet is provided in the middle; the valve core is located in the valve body, the upper end of the valve core is a thick end, close to the water inlet, and when the valve core moves upward, the water inlet can be blocked; the lower end of the valve core is a thin end, close to the drain outlet, and when the valve core moves downward, the drain outlet can be blocked; a spring is provided between the valve body and the valve core, and an upward elastic force is formed on the valve core by the spring, and the valve core is pushed upward by the elastic force to block the water inlet; a cavity is formed in the middle of the valve body, and the water outlet is located in the valve body cavity; the water outlet of the valve body is connected to the filter.

3. The ginger planting intelligent water-fertilizer integrated drip irrigation system according to claim 1, characterized in that: The nozzle is provided with a ground spike, which is a rod-shaped structure with a pointed head at the lower end.

4. The ginger planting intelligent water-fertilizer integrated drip irrigation system according to claim 2, characterized in that: The inner wall of the valve body is provided with cylindrical surfaces at the positions of the upper and lower ends of the valve core; wherein the cylindrical surface where the upper end of the valve core is located is the upper cylindrical surface, and the cylindrical surface where the lower end of the valve core is located is the lower cylindrical surface; the upper and lower ends of the valve core are respectively located in the upper cylindrical surface and the lower cylindrical surface and move up and down, and the upper and lower ends of the valve core are respectively sealed with the upper cylindrical surface and the lower cylindrical surface; wherein the lower half of the upper cylindrical surface and the upper half of the lower cylindrical surface are respectively provided with a series of vertical grooves, and the grooves are connected to the cavity in the middle of the valve body; in the natural state, the valve core is pushed upward by the spring, and the grooves of the lower cylindrical surface are exposed below the valve core, and the cavity in the middle of the valve body and the sewage outlet are connected through the grooves of the lower cylindrical surface; when the water pressure pushes the valve core downward, the grooves of the upper cylindrical surface are exposed above the valve core, and the cavity in the middle of the valve body and the water inlet are connected through the grooves of the upper cylindrical surface, and the sewage outlet of the valve body is blocked by the valve core at this time.

5. The ginger planting intelligent water-fertilizer integrated drip irrigation system according to claim 1, characterized in that: The lower end of the dripper plug is fixed on the dripper shell.

6. The ginger planting intelligent water-fertilizer integrated drip irrigation system according to claim 1, characterized in that: The nozzle is provided with a filter sheet, and the filter sheet is located between the pipeline opening and the nozzle expansion pipe.

7. The ginger planting intelligent water-fertilizer integrated drip irrigation system according to claim 1, characterized in that: The upper end of the nozzle plug is fixed on the nozzle housing.

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