A drip irrigation device for agricultural irrigation

Abstract

The invention discloses a drip irrigation device for agricultural irrigation, comprising a water pipe connected to a pump, the water pipe connected to the pump is connected to a number of irrigation mechanisms, the irrigation mechanisms are respectively connected to control mechanisms, the irrigation mechanisms are respectively connected to the control mechanisms, the irrigation mechanisms are provided with an irrigation bottom, an irrigation middle, and an irrigation top from bottom to top, the number of irrigation mechanisms and control mechanisms can be determined according to the conditions of agricultural land, the part inserted into the ground is designed to be in the form of a cross arrow, so that the insertion into the ground is more stable and not easy to topple over; by setting the control mechanism, the amount of water dripping into the ground can be controlled, which will not cause excessive water content in the root system and a decrease in yield; the device reduces agricultural irrigation costs, has low maintenance costs, and can still manually adjust the water output when the control mechanism is damaged, which is convenient and quick.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural irrigation, in particular to a drip irrigation device used for agricultural irrigation. Background Art

[0002] Drip irrigation, also known as drip irrigation technology, is a water-saving irrigation technology that drips water directly into the root zone of crops in the form of water droplets. It originated in Israel. As a type of water-saving irrigation technology, drip irrigation has an important development position and application prospects in China. According to a report by the China Water Saving Irrigation Network in 2010, the distribution of water resources in my country is extremely uneven, water resources in the northern region have been significantly reduced, and there is a large gap in agricultural irrigation water. This makes water-saving irrigation technology, especially micro-irrigation technology such as drip irrigation, the key to solving the contradiction between water supply and demand. It has the following advantages: labor saving: drip irrigation technology can greatly reduce labor intensity and save about 70% of labor; fertilizer saving: combined with water-soluble fertilizers, it can achieve water-fertilizer integration, improve fertilizer utilization, and save more than 50% of fertilizer; water saving: the water-saving effect is significant, which can save 40-70% of water and avoid deep seepage and surface runoff; worry-free: operation The operation is simple, and the automatic control system can supply water and fertilizer at a fixed time, fixed point and fixed quantity; save electricity: the dripper has a low working pressure, which reduces the total electricity consumption; save land: the pipeline is buried underground and does not occupy arable land, which is conducive to three-dimensional cultivation; increase production: increase the yield per unit area of ​​crops, which can generally increase production by 30%-60%; increase income: in addition to the increase in production, it also benefits from resource conservation, but the current irrigation device cannot control the amount of water for plant irrigation according to the actual water demand of the plants, and the irrigation device has a complex structure, the manufacturing cost is increased, most of them need to be dug for installation, and the corresponding components are complicated to connect, which is inconvenient to install.

[0003] Therefore, a drip irrigation device for agricultural irrigation was invented to solve the shortcomings of the prior art. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the prior art and provide a drip irrigation device for agricultural irrigation.

[0005] The present invention is achieved through the following technical solutions:

[0006] A drip irrigation device for agricultural irrigation, comprising a water pipe connected to a pump, characterized in that the water pipe connected to the pump is connected to a number of irrigation mechanisms, the irrigation mechanisms are respectively connected to a control mechanism, and the irrigation mechanisms are provided with an irrigation bottom, an irrigation middle, and an irrigation top from bottom to top, and the three are coaxially and cocentrically connected;

[0007] The irrigation bottom comprises an inner tube and a protective tube, the inner tube and the protective tube are arranged concentrically and coaxially, the inner tube and the protective tube are hollow cylindrical, the protective tube is provided with a ground contact portion, the inner diameter of the ground contact portion is larger than the inner diameter of the protective tube, and the inner tube is provided with a number of slots for water sources to pass through in the vertical direction around the inner tube;

[0008] The irrigation middle part comprises an irrigation middle part one and an irrigation middle part two, the inner diameter of the irrigation middle part one is smaller than the inner diameter of the irrigation middle part two, the irrigation middle part one is provided with a plugging part, the plugging part is provided with a No. 1 hole, the irrigation middle part one and the irrigation middle part two are hollow cylindrical, and the irrigation middle part two is provided with an internal thread;

[0009] The irrigation top includes an irrigation top part and an irrigation top part two, the irrigation top part and the irrigation top part two are connected by a flange, the inner diameter of the irrigation top part is smaller than the inner diameter of the irrigation top part two, the irrigation top part is provided with an external thread that cooperates with the internal thread provided inside the irrigation middle part two, the irrigation top part is a solid cylinder, and the irrigation top part is provided with a No. 2 hole with the same diameter as the No. 1 hole, and the two are concentrically arranged.

[0010] A filter plate is provided inside the middle part of the irrigation, and the filter plate is coaxially arranged with the blocking part. A rotary hand valve is fixedly provided on the external thread of the top part of the irrigation, and the water volume can be controlled by adjusting the water speed by adjusting the tightness.

[0011] Preferably, the filter plate is evenly provided with a number of holes for water to flow through.

[0012] Preferably, the control system is connected to the top of the irrigation system, and includes an osmotic pressure testing device, and the osmotic pressure testing device is connected to the detection device through a pipeline. The detection device includes a pressure-controlled movable plate and an elastic component. The pressure-controlled movable plate and the elastic component are concentrically arranged. The elastic component is a compression spring, and the osmotic pressure testing device is a porous cup osmometer.

[0013] Preferably, the cross-section of the ground contact portion is circular, and a cross-arrow-shaped insertion rod is provided at the bottom of the inner irrigation pipe for inserting into the soil.

[0014] Preferably, the inner tube, the drip hole and the protective tube are concentrically arranged.

[0015] Preferably, the cross-section of the pressure-controlled movable plate is T-shaped.

[0016] An operating method of a drip irrigation device for agricultural irrigation,

[0017] The following steps are involved:

[0018] Select the location that needs irrigation and insert the drip irrigation device into the ground to the same depth as the control system;

[0019] Start the external water pump, and make the water flow into the irrigation mechanism through the pipes connected to the pump;

[0020] In the case that the control mechanism is not damaged, the dripping speed is automatically controlled for irrigation. In the case that any control mechanism is damaged, the water flow is adjusted by rotating the corresponding hand valve 5.

[0021] The beneficial effects of the present invention are:

[0022] (1) By designing the irrigation bottom with a protective tube outside the inner tube, a drip pipe can be buried below the ground, allowing the roots below the ground to absorb water more fully. Even if the drip pipe below the ground is blocked, the protective tube outside the inner tube will not block other slots, and water can still flow out of the slots and seep into the soil.

[0023] (2) By designing the part inserted into the ground into a cross-arrow shape, it is more stable when inserted into the ground and is not easy to fall over;

[0024] (3) By setting up a control mechanism, the amount of water dripping into the ground can be controlled, which will not cause excessive water content in the root system and reduce yield;

[0025] (4) The device reduces agricultural irrigation costs, has low maintenance costs, is easy to disassemble, and can still manually adjust the water output even if the control mechanism is damaged, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention in which soil moisture decreases when in use.

[0027] Figure 2 It is a structural schematic diagram of the irrigation mechanism of the present invention.

[0028] Figure 3 It is a cross-sectional view of the irrigation mechanism of the present invention.

[0029] Figure 4 It is a schematic diagram of the structure of the detection device of the present invention.

[0030] Figure 5 It is a structural schematic diagram of the insertion part of the present invention.

[0031] Figure 6 It is a structural schematic diagram of soil moisture increase when the present invention is in use.

[0032] Figure 7 It is a schematic structural diagram of the irrigation middle part of the present invention.

[0033] Figure 8 It is a structural schematic diagram of the irrigation top of the present invention.

[0034] Fig. 9 It is a structural schematic diagram of the regulating hand valve of the present invention.

[0035] Fig.10 It is a schematic structural diagram of the inner tube of the present invention.

[0036] Fig.11 It is a schematic diagram of the structure of the protection tube of the present invention.

[0037] Fig.12 A diagram showing the state of use of the irrigation mechanism of the present invention when the irrigation mechanism is inserted into the soil.

[0038] Fig.13 It is a schematic structural diagram of the pressure-controlled moving plate of the present invention. DETAILED DESCRIPTION

[0039] 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.

[0040] See also Figure 1-13 , the present invention provides a technical solution:

[0041] A drip irrigation device for agricultural irrigation includes a water pipe connected to a pump: the water pipe connected to the pump is connected to the water pump, the water pipe connected to the pump is connected to a number of irrigation mechanisms, and the irrigation mechanisms are respectively connected to control mechanisms. The number of irrigation mechanisms and control mechanisms can be determined according to the conditions of agricultural land.

[0042] The irrigation mechanism is provided with an irrigation bottom 1, an irrigation middle part 2, and an irrigation top 3 from bottom to top. The irrigation bottom includes an inner tube 11 and a protective tube 13. The inner tube 11 and the protective tube 13 are hollow cylinders, and the two are concentrically and coaxially arranged. The protective tube 13 is provided with a ground contact part 34. The length of the inner tube 11 is greater than that of the protective tube 13, so that the protective tube 13 can slide freely on the inner tube 11. When inserted into the ground, the protective tube 13 rises. The inner diameter of the ground contact part 34 is greater than that of the inner tube 11, and is used to contact the ground, which can stabilize the protection tube 13 to a certain extent. The protective tube 13 is prevented from being inserted into the ground. With the insertion of the cross-arrow type insertion rod 14 and part of the inner tube 11, a number of slot holes 12 for dripping water to pass through are provided around the inner tube 11 in the vertical direction. The length of the number of slot holes 12 is smaller than that of the inner tube 11. The dripping water flows out from the number of slot holes 12, and the water flows out through the number of slot holes 12 that contact the underground soil to irrigate the soil. When the slot holes 12 under the ground are blocked, water will also flow out from the upper part of the number of slot holes 12 that do not contact the ground to irrigate the soil.

[0043] The irrigation middle part 2 includes an irrigation middle part part 1 21 and an irrigation middle part part 22, wherein the inner diameter 21 of the irrigation middle part part 1 is smaller than the inner diameter of the irrigation middle part part 22, a plugging part 23 is provided on the irrigation middle part part 21, a No. 1 hole 24 is provided on the plugging part 23, the irrigation middle part part 1 21 and the irrigation middle part part 22 are hollow cylindrical, an internal thread is provided inside the irrigation middle part part 22, the irrigation top part 3 includes an irrigation top part 31 and an irrigation top part 32, the irrigation top part 31 and the irrigation top part 32 are connected by a flange 33, the inner diameter of the irrigation top part 31 is smaller than the inner diameter of the irrigation top part 32, the irrigation top part 31 is provided with an external thread matching the internal thread provided inside the irrigation middle part part 22, the irrigation top part 31 is a solid cylinder, a No. 2 hole 25 with the same aperture as the No. 1 hole 24 is provided on the irrigation top part 31, and the two are concentrically arranged, and the water flowing in from the irrigation top 3 passes through the No. 2 hole 25, the No. 1 hole 24, and a number of slot holes 12 in sequence.

[0044] A filter plate 4 is provided inside the middle part 2 of the irrigation system. The filter plate 4 can filter impurities in the water to prevent blockage in the later stage. The filter plate 4 is coaxially arranged with the sealing part 23. A threaded rotary hand valve 5 is provided on the external thread of the top part 31 of the irrigation system. The inner diameter of the rotary hand valve 5 is the same as that of the flange 33. The valve is coaxially arranged. In the event that the control mechanism is damaged in the later stage, the water volume can be temporarily controlled by adjusting the water speed by adjusting the tightness. Loosening the valve speed speeds up the water speed, and tightening the valve slows down the water speed.

[0045] The filter plate 4 is circular and evenly provided with a number of holes for water to flow through and filter the water, thereby preventing blockage and affecting irrigation work.

[0046] The control system is connected to the irrigation top 3, including an osmotic pressure testing device 6, which is connected to the detection device 7 through a pipeline 8. The detection device 7 includes a pressure-controlled movable plate 9 and an elastic component 10. The pressure-controlled movable plate 9 and the elastic component 10 are concentrically and coaxially arranged, wherein the elastic component can be a compression spring. The osmotic pressure testing device 6 uses a porous cup osmometer. A solution of known concentration, such as water or oil, is placed in a porous cup and buried in the soil. The moisture in the soil will penetrate into the solution through the pores of the porous cup until the moisture on both sides is balanced and the concentration in the soil will also change. In some necessary cases, the water potential of the soil can be calculated by measuring the change in the solution at this time to guide irrigation. When the moisture in the soil becomes less, the osmotic pressure difference generated by the osmotic pressure testing device 6 increases, and the liquid level of the solution of known concentration changes. The pressure-controlled movable plate 9 will move away from the irrigation top 3, thereby increasing the moisture supply to the soil. Figure 1 As shown. When the moisture in the soil increases, the osmotic pressure difference generated by the osmotic pressure testing device 6 becomes smaller, the liquid level of the solution of known concentration changes, and the pressure control moving plate 9 moves toward the irrigation top 3, thereby reducing or cutting off the moisture supply to the soil, as shown. Figure 6 shown.

[0047] A cross-arrow-shaped inserting rod 14 is provided at the bottom of the inner pipe 11 for inserting into the soil. The cross-arrow-shaped inserting rod 14 is designed to prevent tipping and is more stable on the ground.

[0048] The inner tube 11, the slot 12 and the protection tube 13 are concentrically arranged.

[0049] The cross section of the pressure control movable plate 9 is T-shaped.

[0050] An operating method of a drip irrigation device for agricultural irrigation,

[0051] The following steps are involved:

[0052] (1) Select the location where irrigation is required and insert the drip irrigation device and control system into the ground;

[0053] (2) Start the external water pump, and use the water pipes connected to the pump to allow water to flow through the pipes and into the irrigation mechanisms;

[0054] (3) When the control mechanism is not damaged, the dripping speed is automatically controlled for irrigation. When any control mechanism is damaged, the water speed is adjusted by rotating the hand valve 5.

[0055] Working principle: After selecting the location to be irrigated, insert the drip irrigation device into the ground through the cross-arrow type insertion rod 14, and insert the control system into the ground to ensure that the two are aligned at the end close to the ground. Figure 1As shown, the inner tube 11 is longer than the protective tube 13, and the protective tube 13 can slide freely on the inner tube 11. When inserted into the ground, the protective tube 13 rises to expose the inner tube 11, and the external water pump is started. The water flows into the irrigation mechanism through the pipe connected to the pump. The water flowing in from the irrigation top 3 passes through the second hole 25 and the first hole 24, and a number of slot holes 12 in sequence. When the moisture in the soil decreases, the osmotic pressure difference generated by the osmotic pressure testing device 6 increases, and the pressure control moving plate 9 will move away from the irrigation top 3, thereby increasing the moisture supply to the soil. Figure 1 As shown. When the moisture in the soil increases, the osmotic pressure difference generated by the osmotic pressure testing device 6 becomes smaller, and the pressure-controlled moving plate 9 moves toward the irrigation top 3, thereby reducing or cutting off the moisture supply to the soil. Figure 6 As shown, in the case that any control mechanism is damaged, the water speed is adjusted by rotating the hand valve 5. The rotating hand valve is fixed on the irrigation top part 31. The irrigation top part 31 is a solid cylinder with threads, which cooperates with the internal threads of the irrigation top part 32. When loosened, the contact area between the external threads of the irrigation top part 31 and the internal threads of the irrigation top part 32 is large, the amount of water flowing through is large, and the water speed is accelerated. When tightened, the contact area between the external threads of the irrigation top part 31 and the internal threads of the irrigation top part 32 is small, the amount of water flowing through is small, and the water speed is slowed down.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drip irrigation device for agricultural irrigation, characterized in that: It comprises a water pipe connected to a pump and a control system, wherein the water pipe connected to the pump is connected to a plurality of irrigation mechanisms, and the irrigation mechanisms are respectively connected to the control mechanism, and the irrigation mechanisms are provided with an irrigation bottom (1), an irrigation middle part (2), and an irrigation top part (3) from bottom to top, and the three are coaxially and cocentrically connected; The irrigation bottom (1) comprises an inner tube (11) and a protective tube (13), the inner tube (11) and the protective tube (13) being arranged concentrically and coaxially, the inner tube (11) and the protective tube (13) being hollow cylindrical, the inner tube (11) being longer than the protective tube (13), the protective tube (13) being provided with a ground contact portion (34), the inner diameter of the ground contact portion (34) being larger than the inner diameter of the protective tube (13), the inner tube (11) being provided with a plurality of slots (12) along the vertical direction for water supply sources to pass through, the length of the plurality of slots (12) being smaller than the longitudinal length of the inner tube (11); The irrigation middle part (2) comprises an irrigation middle part one (21) and an irrigation middle part two (22); the inner diameter of the irrigation middle part one (21) is smaller than the inner diameter of the irrigation middle part two (22); a sealing part (23) is provided on the irrigation middle part one (21); a No. 1 hole (24) is provided on the sealing part (23); the irrigation middle part one (21) and the irrigation middle part two (22) are hollow cylindrical; and an internal thread is provided inside the irrigation middle part two (22); The irrigation top (3) comprises an irrigation top part (31) and an irrigation top part (32), wherein the irrigation top part (31) and the irrigation top part (32) are connected via a flange (33), the inner diameter of the irrigation top part (31) is smaller than the inner diameter of the irrigation top part (32), the irrigation top part (31) is provided with an external thread that matches the internal thread provided inside the irrigation middle part (22), the irrigation top part (31) is a solid cylinder, and the irrigation top part (31) is provided with a No. 2 hole (25) having the same diameter as the No. 1 hole (24), and the two are arranged concentrically and coaxially; The control system is connected to the irrigation top (3), and the control system includes an osmotic pressure testing device (6). The osmotic pressure testing device (6) is connected to the detection device (7) via a pipeline (8). The detection device (7) includes a pressure control movable plate (9) and an elastic component (10). The pressure control movable plate (9) and the elastic component (10) are coaxially arranged. The elastic component (10) is a compression spring. The osmotic pressure testing device (6) is a porous cup osmometer or a pore water pressure gauge.

2. A drip irrigation device for agricultural irrigation according to claim 1, characterized in that: A filter plate (4) is provided inside the irrigation middle part (2), and the filter plate (4) is coaxially arranged with the sealing part (23). A rotary hand valve (5) is fixedly provided on the external thread of the irrigation top part (31). The inner diameter of the rotary hand valve (5) is the same as that of the flange (33), and they are coaxially arranged. The water volume can be controlled by adjusting the water speed by adjusting the tightness.

3. A drip irrigation device for agricultural irrigation according to claim 2, characterized in that: The filter plate (4) is evenly provided with a plurality of holes for water to flow through and be filtered.

4. A drip irrigation device for agricultural irrigation according to claim 1, characterized in that: The ground contact portion (34) has a circular cross section, and the irrigation bottom of the inner tube (11) is connected to a cross-arrow-shaped insertion rod (14) for insertion into the soil.

5. The drip irrigation device for agricultural irrigation according to claim 1, characterized in that: The inner tube (11), the slotted hole (12) and the protective tube (13) are arranged concentrically.

6. A drip irrigation device for agricultural irrigation according to claim 1, characterized in that: The cross section of the pressure control movable plate (9) is T-shaped.

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