A water-saving drip irrigation tape dripper with pressure compensation

Abstract

The present invention discloses a water-saving drip irrigation tape dripper with pressure compensation, comprising a joint, a bottom cylinder connected below the joint, a drip tube arranged in the bottom cylinder, and the drip tube passing through the top of the joint; a rotating tube is rotatably arranged above the joint, the rotating tube is sleeved outside the drip tube, and a screw cap is fixed above the rotating tube; a plurality of ground nails are arranged around the bottom cylinder; compared with the prior art, the present invention has shown remarkable effects in improving irrigation efficiency, realizing pressure compensation, reducing blockage risks, improving agricultural production benefits, and promoting the popularization and application of agricultural water-saving technologies.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural drip irrigation, in particular to a water-saving drip irrigation tape dripper with pressure compensation. Background Art

[0002] Water shortage has become one of the key factors restricting the sustainable development of agriculture. How to efficiently and accurately use limited water resources for agricultural irrigation has become an important research goal in the field of agricultural science and technology. As an important technology in modern agricultural irrigation, drip irrigation technology has gradually gained widespread attention and application with its advantages of water saving, energy saving and high efficiency. As the core component of the drip irrigation system, the performance of the drip irrigation tape dripper directly affects the efficiency and effect of the entire irrigation system.

[0003] Existing drip irrigation tape drippers are usually composed of a water inlet, a throttling channel, a water outlet, and a shell. They are mostly cylindrical or conical in shape, with a simple design and easy to integrate with the drip irrigation tape. The water inlet is used to receive water from the water source, and the water is evenly distributed to each water outlet through the throttling channel to finally achieve irrigation. This design meets the basic irrigation needs to a certain extent, but it still performs unsatisfactorily when dealing with complex and changeable irrigation environments. First, when facing complex terrain and long-distance transportation, the existing drip irrigation tape drippers often find it difficult to ensure the uniformity and stability of the water flow, resulting in poor irrigation effects. Secondly, due to the relatively simple structure of the existing drip irrigation tape drippers and the lack of effective flow regulation and pressure compensation mechanisms, the irrigation effects under different water pressure conditions vary greatly, making it difficult to meet the needs of refined irrigation. In addition, the existing drip irrigation tape drippers are prone to clogging during use, which increases maintenance costs and difficulties.

[0004] Therefore, it is necessary to provide a water-saving drip irrigation tape dripper with pressure compensation to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution: a water-saving drip irrigation tape dripper with pressure compensation, comprising a joint, a bottom tube connected to the lower part of the joint, a drip tube arranged in the bottom tube, and the drip tube passing through the upper part of the joint;

[0006] A rotating tube is rotatably arranged above the joint, the rotating tube is sleeved outside the dropper, and a screw cap is fixed above the rotating tube;

[0007] A plurality of ground nails are arranged around the bottom tube.

[0008] Furthermore, as a preference, the ground nail is rotatably connected to the bottom cylinder, and the outer wall of the ground nail is provided with spiral blades.

[0009] Further, as a preference, the upper end of each of the ground nails passes through the top of the bottom tube and is fixed with a gear, and a gear ring is rotatably provided above the bottom tube, and the gear ring is meshed with each gear.

[0010] Further, as a preference, a sealing plug is provided between the bottom of the bottom tube and the dropper;

[0011] The side wall of the dropper at the position inside the bottom tube is provided with a plurality of throttling slots.

[0012] Further, as a preference, the dropper is connected to the sealing plug in a slidable and rotationally restricted manner, and the rotating tube is threadedly connected to the dropper.

[0013] Further, as a preference, a connecting ring is provided in the fixing frame inside the bottom tube, and the connecting ring is slidably sleeved on the outer wall of the dropper;

[0014] A plurality of elastic diaphragms are distributed between the connecting ring and the sealing plug corresponding to each throttling gap.

[0015] Furthermore, preferably, a filter screen is provided in the connecting ring.

[0016] Further, as a preference, a rotating needle is provided in the dropper, and the upper end of the rotating needle is connected to the screw cap.

[0017] Further, preferably, a plurality of protrusions are distributed in the rotating needle.

[0018] Further, as a preference, the upper end of the rotating needle penetrates the rotating cover, and the rotating needle is connected to the rotating cover in a slidable and rotationally restricted manner;

[0019] A return spring is connected between the upper end of the rotating needle and the rotating cover.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, the device achieves fine control of the irrigation water flow by accurately adjusting the relative position of the throttling seam and the sealing plug in the drip tube. The irrigation process is made more precise, and the appropriate irrigation amount can be provided according to different crops, different growth stages, soil moisture and other conditions, thereby greatly improving the irrigation efficiency. At the same time, since the irrigation is more precise, the waste of water resources is reduced, which helps to achieve the sustainable use of water resources.

[0022] In the present invention, the device realizes the pressure compensation function through the interaction between the built-in elastic diaphragm and the sealing plug. When the water pressure increases, the sealing plug moves downward, reducing the opening area of ​​the throttling slit, thereby limiting the flow of water; conversely, when the water pressure decreases, the opening area of ​​the throttling slit increases, increasing the water flow. This ensures that no matter how the water pressure changes, the water output in the dropper can remain relatively stable, thereby improving the uniformity and stability of irrigation.

[0023] In the present invention, the device filters the water entering the bottom tube through the built-in filter, effectively preventing impurities from entering the inside of the dripper. At the same time, the design of the rotating needle and the protrusion enables the inner wall of the dripper to be automatically cleaned during the process of rotating the cap, further reducing the risk of clogging. This design not only reduces the maintenance workload, but also significantly extends the service life of the drip irrigation tape dripper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a water-saving drip irrigation tape dripper with pressure compensation;

[0025] Figure 2 It is a schematic diagram of a half-section structure of a water-saving drip irrigation tape dripper with pressure compensation;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of a water-saving drip irrigation tape dripper with pressure compensation;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the bottom tube;

[0028] In the figure: 1. joint; 2. bottom tube; 3. dropper; 31. throttling seam; 32. elastic diaphragm; 33. connecting ring; 34. rotating needle; 35. bump; 4. rotating tube; 5. screw cap; 6. ground nail; 7. gear; 8. gear ring; 9. reset spring; 10. sealing plug. DETAILED DESCRIPTION

[0029] See also Figure 1 In an embodiment of the present invention, a water-saving drip irrigation tape dripper with pressure compensation includes a joint 1, a bottom tube 2 is connected to the bottom of the joint 1, a drip tube 3 is arranged in the bottom tube 2, and the drip tube 3 passes through the top of the joint 1;

[0030] A rotating tube 4 is rotatably arranged above the joint 1, the rotating tube 4 is sleeved outside the dropper 3, and a screw cap 5 is fixed above the rotating tube 4;

[0031] A plurality of ground nails 6 are arranged around the bottom tube 2 .

[0032] In this embodiment, the ground nail 6 is rotatably connected to the bottom cylinder 2, and a spiral blade is provided on the outer wall of the ground nail 6. The ground nail 6 can be embedded into the soil along the spiral blade by rotating the ground nail 6, and the spiral blade can provide a longitudinal anchoring force to ensure the stability of the drip irrigation position.

[0033] In this embodiment, the upper end of each of the ground nails 6 passes through the top of the bottom tube 2 and is fixed with a gear 7 . A gear ring 8 is rotatably provided on the top of the bottom tube 2 , and the gear ring 8 is meshed with each gear 7 .

[0034] By rotating the gear ring 8, each ground nail 6 can be driven to rotate synchronously, so that the ground nail 6 is conveniently embedded in the soil.

[0035] See also Figure 2 to Figure 4 In this embodiment, a sealing plug 10 is provided between the bottom of the bottom tube 2 and the dropper 3 , and a plurality of throttling slits 31 are distributed on the side wall of the dropper 3 in the bottom tube 2 .

[0036] The front and rear of the joint 1 are connected to water pipes, and water flows into the bottom tube 2 and flows into the drip tube 3 through the throttling seam 31, so that water drips from the bottom of the drip tube 3 for drip irrigation.

[0037] In this embodiment, the dropper 3 is connected to the sealing plug 10 in a slidable and rotationally restricted manner, and the rotating tube 4 is threadedly connected to the dropper 3 .

[0038] That is to say, the height of the dropper 3 can be changed by rotating the rotating tube 4, so that the throttling gap 31 enters the sealing plug 10 at different heights, thereby changing the flow rate of water entering the dropper 3 from the bottom tube 2 to actively adjust the flow rate.

[0039] In this embodiment, a connecting ring 33 is fixedly mounted inside the bottom tube 2 , and the connecting ring 33 is slidably sleeved on the outer wall of the dropper 3 . A plurality of elastic diaphragms 32 are distributed between the connecting ring 33 and the sealing plug 10 corresponding to each throttling gap 31 .

[0040] The water flow of the bottom tube 2 enters the dropper 3 through the throttling seam 31 from the gap between the elastic diaphragm 32 and the dropper 3. When the water pressure of the bottom tube 2 is greater, the downward pressure on the sealing plug 10 is also greater, so that it slides downward to stretch and straighten the elastic diaphragm 32, so that the gap between the elastic diaphragm 32 and the dropper 3 is smaller, and the flow rate of the water flow entering the dropper 3 from the bottom tube 2 is also smaller. Conversely, when the water pressure of the bottom tube 2 is smaller, the flow rate of the water flow entering the dropper 3 from the bottom tube 2 is larger, so as to play the role of negative feedback regulation of the flow rate, thereby achieving a pressure compensation effect.

[0041] In this embodiment, a filter is provided in the connecting ring 33 to filter the water flowing into the bottom tube 2 to prevent impurities from clogging the pipeline.

[0042] In this embodiment, a rotating needle 34 is provided in the dropper 3 , and the upper end of the rotating needle 34 is connected to the rotating cover 5 .

[0043] In this embodiment, a plurality of protrusions 35 are distributed in the rotating needle 34 .

[0044] When the rotary cover 5 is rotated, the rotating needle 34 can also be rotated, and the inside of the dropper 3 can be cleaned under the action of the protrusion 35, so that the blockage can be quickly unblocked.

[0045] In this embodiment, the upper end of the rotating needle 34 penetrates the rotating cover 5 , and the rotating needle 34 is connected to the rotating cover 5 in a slidable and rotationally restricted manner. A return spring 9 is connected between the upper end of the rotating needle 34 and the rotating cover 5 .

[0046] By pressing the upper end of the rotating needle 34 , the rotating needle 34 can slide up and down inside the dropper 3 , thereby clearing the blockage more efficiently.

[0047] The specific implementation includes:

[0048] First, place the drip irrigation tape dripper at the location where irrigation is required, drive the ground nail 6 to rotate by rotating the gear ring 8, and use the spiral blade to embed the ground nail 6 into the soil to achieve firm fixation;

[0049] According to the irrigation demand, the rotating cover 5 drives the rotating tube 4 to rotate, thereby adjusting the position of the dropper 3 in the bottom tube 2. As the dropper 3 moves up and down, the relative position of the throttling seam 31 and the sealing plug 10 changes, thereby changing the water flow entering the dropper 3;

[0050] During the irrigation process, when the water pressure in the bottom cylinder 2 changes, the pressure on the sealing plug 10 also changes accordingly. When the water pressure increases, the sealing plug 10 moves downward, stretching the elastic diaphragm 32, reducing the gap between it and the dropper 3, and limiting the flow of water, thereby maintaining the relative stability of the water output of the dropper 3; conversely, when the water pressure decreases, the gap increases, the flow increases, and the pressure compensation effect is achieved;

[0051] The rotary cover 5 is rotated regularly to drive the rotating needle 34 to rotate in the dropper 3. The protrusion 35 on the rotating needle 34 scrapes the inner wall of the dropper 3 and presses the upper end of the rotating needle 34 to remove possible attached impurities and blockages, so as to keep the dropper 3 unobstructed.

[0052] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water-saving drip irrigation tape dripper with pressure compensation, comprising a joint (1), characterized in that: A bottom tube (2) is connected to the bottom of the joint (1), a dropper (3) is arranged inside the bottom tube (2), and the dropper (3) passes through the top of the joint (1); A rotating tube (4) is rotatably arranged above the joint (1), the rotating tube (4) is sleeved outside the dropper (3), and a screw cap (5) is fixed above the rotating tube (4); A plurality of ground nails (6) are arranged around the bottom tube (2); The ground nail (6) is rotatably connected to the bottom cylinder (2), and the outer wall of the ground nail (6) is provided with spiral blades; The upper end of each of the ground nails (6) passes through the top of the bottom tube (2) and is fixed with a gear (7); a gear ring (8) is rotatably arranged on the top of the bottom tube (2), and the gear ring (8) is meshed with each gear (7); A sealing plug (10) is provided between the bottom of the bottom cylinder (2) and the dropper (3); The side wall of the dropper (3) at the position inside the bottom tube (2) is provided with a plurality of throttling slits (31); The dropper (3) is slidably connected to the sealing plug (10) and is rotationally restricted, and the rotating tube (4) is threadedly connected to the dropper (3); A connecting ring (33) is fixedly mounted inside the bottom tube (2), and the connecting ring (33) is slidably sleeved on the outer wall of the dropper (3); A plurality of elastic diaphragms (32) are distributed between the connecting ring (33) and the sealing plug (10) corresponding to each throttling slot (31).

2. A water-saving drip irrigation tape dripper with pressure compensation according to claim 1, characterized in that: A filter screen is provided in the connecting ring (33).

3. A water-saving drip irrigation tape dripper with pressure compensation according to claim 1, characterized in that: A rotating needle (34) is provided in the dropper (3), and the upper end of the rotating needle (34) is connected to the rotating cap (5).

4. A water-saving drip irrigation tape dripper with pressure compensation according to claim 3, characterized in that: A plurality of protrusions (35) are distributed in the rotating needle (34).

5. A water-saving drip irrigation tape dripper with pressure compensation according to claim 4, characterized in that: The upper end of the rotating needle (34) penetrates the rotating cover (5), and the rotating needle (34) and the rotating cover (5) are connected to each other in a slidable and rotationally restricted manner; A return spring (9) is connected between the upper end of the rotating needle (34) and the rotating cover (5).

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