Drip irrigation device for farmland irrigation

Abstract

The drip irrigation device comprises an arc-shaped connecting plate, a water outlet head is arranged on the outer side face of the arc-shaped connecting plate, a water outlet pipe is arranged in the water outlet head, an energy dissipation flow dividing pipe is further arranged on the side wall of the water outlet pipe, and the energy dissipation flow dividing pipe comprises a flow dividing section, an arc-shaped transition section and an arc-shaped reverse flow section. And the shunting section, the arc-shaped transition section and the arc-shaped reverse flow section are communicated end to end in sequence. According to the utility model, the plurality of energy dissipation diversion pipes are arranged on the side surface of the water outlet pipe, when drip irrigation water passes through the interior of the water outlet pipe, part of the drip irrigation water flows into the energy dissipation diversion pipes, and the drip irrigation water in the energy dissipation diversion pipes finally flows back to the interior of the water outlet pipe through the arc-shaped transition sections and the arc-shaped reverse flow sections and reversely impacts the drip irrigation water in the water outlet pipe; the flow rate of drip irrigation water at the water outlet end of the water outlet pipe can be reduced, so that impact on crops and the ground after the drip irrigation water flows out is relieved, and the energy dissipation effect is obvious.

Description

Technical Field

[0001] This utility model belongs to the field of irrigation equipment technology, and in particular relates to a drip irrigation device for farmland irrigation. Background Technology

[0002] Drip irrigation delivers pressurized water, filtered, through a network of pipes and outlet pipes (drip tubes) to each dripper. The drippers then slowly and evenly distribute the water into the soil near the plant roots in the form of droplets or a weak flow.

[0003] In actual engineering installation, a hole is first punched in the dripper with a hole punch, and then the water inlet end of the dripper is inserted into the hole. When water is flowing through the dripper, water flows out from the dripper. In order to ensure that the dripper located at the tail of the dripper also has a certain water pressure, irrigation water with a certain pressure needs to be input. However, in practice, it has been found that the water pressure generated by the dripper near the head of the dripper is greater, which causes the water flow output by the dripper to be faster than the water flow output by the dripper located at the tail of the dripper, which easily causes uneven drip irrigation.

[0004] In the prior art, in order to solve the above problems, a dripper with energy dissipation function has been designed. The purpose is to reduce the flow rate and flow of water output by the dripper. However, the existing drippers with energy dissipation function, such as the dripper and drip irrigation pipe and drip irrigation system disclosed in CN111011186B, have an energy dissipation method that is only designed as a right-angle turning flow channel in a serpentine shape. Its energy dissipation effect is relatively general and cannot meet people's needs.

[0005] To address the shortcomings of existing technologies, this utility model discloses a drip irrigation device for farmland irrigation. By installing several energy-dissipating diversion pipes on the side of the outlet pipe, when drip irrigation water passes through the inside of the outlet pipe, some of the drip irrigation water will flow into the energy-dissipating diversion pipes. The drip irrigation water in the energy-dissipating diversion pipes will eventually flow back into the outlet pipe through the arc-shaped transition section and the arc-shaped counterflow section, and will reverse the impact on the drip irrigation water inside the outlet pipe. This can reduce the flow velocity of the drip irrigation water at the outlet end of the outlet pipe, thereby slowing down the impact of the drip irrigation water on crops and the ground after it flows out, and the energy dissipation effect is obvious. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a drip irrigation device for farmland irrigation to solve the technical problems mentioned in the background art.

[0007] This utility model provides the following technical solution:

[0008] A drip irrigation device for farmland irrigation includes an arc-shaped connecting plate for connecting to the outer wall of a drip tube. An outlet head is provided on the outer surface of the arc-shaped connecting plate. An outlet pipe for communicating with the interior of the drip tube is provided inside the outlet head. An energy-dissipating diversion pipe is also provided on the side wall of the outlet pipe. The energy-dissipating diversion pipe includes a diversion section, an arc-shaped transition section, and an arc-shaped counter-flow section. The inner diameters of the diversion section, the arc-shaped transition section, and the arc-shaped counter-flow section are the same. One end of the diversion section near the arc-shaped connecting plate communicates with the interior of the outlet pipe. The other end of the diversion section is connected to the arc-shaped transition section. The other end of the arc-shaped transition section communicates with the end of the arc-shaped counter-flow section away from the arc-shaped connecting plate. The end of the arc-shaped counter-flow section near the arc-shaped connecting plate communicates with the interior of the outlet pipe.

[0009] Preferably, the water outlet pipe is located at the middle of the outer side of the arc-shaped connecting plate.

[0010] Preferably, a plurality of energy dissipation diversion pipes are provided, and the plurality of energy dissipation diversion pipes are arranged sequentially at equal intervals along the circumference of the water outlet pipe; the sum of the cross-sectional areas of the inner rings of the plurality of energy dissipation diversion pipes is not greater than half of the cross-sectional area of ​​the inner ring of the water outlet pipe.

[0011] Preferably, the axis of the water outlet pipe is perpendicular to and intersects the axis of the arc-shaped connecting plate, and one end of the water outlet pipe near the arc-shaped connecting plate passes through the arc-shaped connecting plate and extends a certain length towards the inner circle of the arc-shaped connecting plate.

[0012] Preferably, the end of the water outlet pipe near the arc-shaped connecting plate is provided with a pointed end.

[0013] Preferably, the arc-shaped connecting plate is connected to the outer wall of the dropper via a connector.

[0014] Preferably, the connector is one or any combination of adhesive, stainless steel hoop, and iron wire.

[0015] Preferably, a sealing gasket is coaxially provided on the inner side of the arc-shaped connecting plate, and an opening is provided in the middle of the sealing gasket for the water outlet pipe to pass through.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model discloses a drip irrigation device for farmland irrigation. By setting several energy-dissipating diversion pipes on the side of the outlet pipe, when drip irrigation water passes through the inside of the outlet pipe, some of the drip irrigation water will flow into the energy-dissipating diversion pipes. The drip irrigation water in the energy-dissipating diversion pipes will eventually flow back into the outlet pipe through the arc-shaped transition section and the arc-shaped counterflow section, and will reverse the impact on the drip irrigation water inside the outlet pipe. This can reduce the flow velocity of the drip irrigation water at the outlet end of the outlet pipe, thereby slowing down the impact of the drip irrigation water on crops and the ground after it flows out, and the energy dissipation effect is obvious. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the energy dissipation diversion pipe structure of this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-3As shown, a drip irrigation device for farmland irrigation includes an arc-shaped connecting plate 1 for connecting to the outer wall of a drip tube 5. An outlet head 2 is provided on the outer side of the arc-shaped connecting plate 1. The upper end of the outlet head 2 is sealed to or integrally formed with the outer side of the arc-shaped connecting plate 1. An outlet pipe 3, communicating with the interior of the drip tube 5, is provided inside the outlet head 2. The upper end of the outlet pipe 3 is sealed to or integrally formed with the arc-shaped connecting plate 1. The outlet pipe 3 is located in the middle of the outer side of the arc-shaped connecting plate 1. An energy dissipation and diversion pipe 4 is also provided on the side wall of the outlet pipe 3. The diversion pipe 4 includes a diversion section 41, an arc-shaped transition section 42, and an arc-shaped counterflow section 43. The inner diameters of the diversion section 41, the arc-shaped transition section 42, and the arc-shaped counterflow section 43 are the same. The end of the diversion section 41 near the arc-shaped connecting plate 1 is connected to the inside of the outlet pipe 3. The other end of the diversion section 41 is connected to the arc-shaped transition section 42. The other end of the arc-shaped transition section 42 is connected to the end of the arc-shaped counterflow section 43 away from the arc-shaped connecting plate 1. The end of the arc-shaped counterflow section 43 near the arc-shaped connecting plate 1 is connected to the inside of the outlet pipe 3.

[0025] Several energy dissipation diversion pipes 4 are provided, and these pipes 4 are arranged at equal intervals along the circumference of the outlet pipe 3. The sum of the cross-sectional areas of the inner rings of the several energy dissipation diversion pipes 4 is no greater than half of the cross-sectional area of ​​the inner ring of the outlet pipe 3. When drip irrigation water passes through the inside of the outlet pipe 3, some of the drip irrigation water flows into the energy dissipation diversion pipes 4 through the diversion section 41. The drip irrigation water in the energy dissipation diversion pipes 4 eventually flows back into the outlet pipe 3 through the arc-shaped transition section 42 and the arc-shaped counterflow section 43, and reverses the flow of drip irrigation water in the outlet pipe 3, reducing the flow velocity of drip irrigation water at the outlet end of the outlet pipe 3. This reduces the impact of drip irrigation water on crops and the ground after it flows out, resulting in a significant energy dissipation effect.

[0026] The axis of the water outlet pipe 3 is perpendicular to and intersects the axis of the arc-shaped connecting plate 1. The end of the water outlet pipe 3 near the arc-shaped connecting plate 1 passes through the arc-shaped connecting plate 1 and extends a certain length towards the inner circle of the arc-shaped connecting plate 1.

[0027] The end of the water outlet pipe 3 near the arc-shaped connecting plate 1 is provided with a pointed tip 8. This facilitates the insertion of the water outlet pipe 3 into the interior of the dropper 5 through the dropper opening.

[0028] The arc-shaped connecting plate 1 is connected to the outer wall of the dropper 5 via a connector 6, which can be adhesive, a stainless steel hoop, or a wire, or any combination thereof. In this embodiment, a stainless steel hoop is preferred. Two stainless steel hoops are respectively located at the left and right ends of the arc-shaped connecting plate 1. After the arc-shaped connecting plate 1 is attached to the outer wall of the dropper 5, the stainless steel hoops secure the arc-shaped connecting plate 1 to the dropper 5.

[0029] A sealing gasket 7 is also coaxially arranged on the inner side of the arc-shaped connecting plate 1, and an opening for the water outlet pipe 3 to pass through is provided in the middle of the sealing gasket 7. This further improves the sealing performance between the inner wall of the arc-shaped connecting plate 1 and the outer wall of the drip tube 5, and reduces the possibility of water overflowing from the connection between the inner wall of the arc-shaped connecting plate 1 and the outer wall of the drip tube 5.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drip irrigation device for farmland irrigation, characterized in that: The device includes an arc-shaped connecting plate (1) for connecting to the outer wall of the drip tube (5). The outer side of the arc-shaped connecting plate (1) is provided with a water outlet head (2). The water outlet head (2) is provided with a water outlet pipe (3) for communicating with the inside of the drip tube (5). The side wall of the water outlet pipe (3) is also provided with an energy dissipation diversion pipe (4). The energy dissipation diversion pipe (4) includes a diversion section (41), an arc-shaped transition section (42), and an arc-shaped counterflow section (43). The end of the diversion section (41) near the arc-shaped connecting plate (1) is connected to the inside of the water outlet pipe (3). The other end of the diversion section (41) is connected to the arc-shaped transition section (42). The other end of the arc-shaped transition section (42) is connected to the end of the arc-shaped counterflow section (43) away from the arc-shaped connecting plate (1). The end of the arc-shaped counterflow section (43) near the arc-shaped connecting plate (1) is connected to the inside of the water outlet pipe (3).

2. The drip irrigation device for farmland irrigation according to claim 1, characterized in that, The energy dissipation diversion pipe (4) is provided in several units, and the energy dissipation diversion pipe (4) is arranged sequentially at equal intervals along the circumference of the water outlet pipe (3).

3. The drip irrigation device for farmland irrigation according to claim 2, characterized in that, The inner diameters of the diversion section (41), the arc transition section (42), and the arc counterflow section (43) are the same.

4. The drip irrigation device for farmland irrigation according to claim 3, characterized in that, The sum of the cross-sectional areas of the inner rings of several energy dissipation diversion pipes (4) is not greater than one-half of the cross-sectional area of ​​the inner ring of the outlet pipe (3).

5. The drip irrigation device for farmland irrigation according to claim 1, characterized in that, The water outlet pipe (3) is perpendicular to and intersects the axis of the arc-shaped connecting plate (1). The end of the water outlet pipe (3) near the arc-shaped connecting plate (1) passes through the arc-shaped connecting plate (1) and extends a certain length into the inner circle of the arc-shaped connecting plate (1).

6. The drip irrigation device for farmland irrigation according to claim 5, characterized in that, The water outlet pipe (3) has a pointed tip (8) at one end near the arc-shaped connecting plate (1).

7. The drip irrigation device for farmland irrigation according to claim 1, characterized in that, The arc-shaped connecting plate (1) is connected to the outer wall of the dropper (5) through the connector (6).

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