Orchard irrigation sprinkler

Abstract

The utility model discloses a kind of shower nozzles for orchard irrigation, including shower nozzle main body, water spraying nozzle, rotating shaft, blocking part and spiral part. Multiple water spraying openings are evenly provided in the outer ring surface of water spraying nozzle;Blocking part is provided with the matching shielding surface with the inner ring surface of water spraying nozzle;Spiral part drives rotating shaft and blocking part to rotate under water flow impact, so that the shielding surface periodically shields each water spraying opening in turn, realizes water spraying in turn. The utility model is driven by water flow, so that water spraying opening is intermittently opened, concentrated water pressure improves range, and expands irrigation coverage.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation equipment technology, specifically to a sprinkler head for orchard irrigation, which is particularly suitable for orchard scenarios that require large-scale uniform irrigation. Background Technology

[0002] In orchard irrigation, sprinklers are key components that determine irrigation efficiency and coverage. Currently, there are two main types of common irrigation sprinklers:

[0003] Directional sprinklers: All nozzles spray water outwards simultaneously, covering the surrounding area from the nozzle center. However, because all nozzles are open at the same time, the water pressure is distributed to multiple outlets, resulting in a decrease in the spray pressure of each nozzle, a significant reduction in the water flow range, and a smaller spray diameter, making it difficult to effectively irrigate fruit trees in distant areas.

[0004] Rotary nozzles: These nozzles are driven by water power to rotate, using centrifugal force to throw water out. However, centrifugal force can cause water droplets to atomize prematurely or scatter in all directions, resulting in an actual landing radius that is often smaller than the theoretical range. This also limits the coverage area, and the rotating mechanism is prone to wear and tear and has a higher cost.

[0005] Therefore, there is an urgent need for a nozzle structure that can effectively expand the spray coverage area while maintaining reasonable water pressure. Utility Model Content

[0006] The purpose of this utility model is to provide a sprinkler head for orchard irrigation, so as to solve the technical problems of existing directional sprinklers causing water pressure dispersion and spray diameter being too small due to the full opening of the nozzle, and rotary sprinklers causing the coverage area to be reduced due to centrifugal force.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A sprinkler head for orchard irrigation includes a sprinkler body with one end for connection to a water pipe and a base. The sprinkler body has a fixedly connected water spray nozzle at the other end. Multiple water spray nozzles are evenly distributed circumferentially on the outer ring surface of the water spray nozzle. The water spray nozzle contains a rotatable rotating shaft, on which a blocking part and a spiral part are fixedly mounted. The blocking part includes a connecting part and a flow-limiting part. The flow-limiting part has a shielding surface that matches the curvature of the inner ring surface of the water spray nozzle. The shielding surface slides against or is spaced from the inner ring surface of the water spray nozzle. The spiral part is located in the water flow channel and generates a rotational torque under the impact of the water flow, driving the rotating shaft and the blocking part to rotate together. During rotation, the shielding surface passes through each water spray nozzle sequentially, causing each nozzle to be periodically blocked and opened, thus achieving alternating water spraying from the nozzles.

[0009] Furthermore, the spiral part is a tubular structure with spiral blades or spiral grooves, which is integrally formed with the rotating shaft or fixedly connected by a keyway.

[0010] Furthermore, the two ends of the rotating shaft are mounted on the end wall of the water spray nozzle via bearings to reduce rotational resistance.

[0011] Furthermore, the gap between the shielding surface and the inner annular surface of the water spray head is 0.1mm to 0.5mm.

[0012] Furthermore, the water nozzle is a circular hole or an atomizing water nozzle.

[0013] Furthermore, the water nozzles are distributed in 1 to 3 rings at equal intervals along the circumference of the water nozzle head.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Significantly expands the spraying range: By selectively closing some spray nozzles through the blocking part, the water flow is concentrated to the remaining nozzles. Under the same water pressure and flow rate, the spraying distance can be increased by more than 50%, and the coverage diameter is significantly larger than that of traditional fully open directional sprinklers.

[0016] Overcomes the disadvantages of rotating nozzles: It does not rely on centrifugal force, avoiding the reduction in range caused by centrifugal force, and has a simpler structure, no rotating wear parts, and high reliability. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 This is a three-dimensional exploded view of the main structure of this utility model;

[0019] Figure 2 This is a three-dimensional exploded view of part of the structure of this utility model.

[0020] In the diagram: 1-Sprayer body; 2-Spray nozzle; 3-Spray outlet; 4-Rotating shaft; 5-Blocking part; 6-Spiral part; 7-Threaded part; 8-Nut; 9-Pin groove; 10-Connecting part; 11-Flow limiting part; 12-Shielding surface. Detailed Implementation

[0021] For ease of understanding, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without changing the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] Example 1:

[0023] like Figure 1 and Figure 2 As shown, an orchard irrigation sprinkler head includes a sprinkler body 1, a water spray head 2, a rotating shaft 4, a blocking part 5, and a spiral part 6. The lower end of the sprinkler body 1 is provided with external threads for connecting a water pipe and a fixed base. The upper end of the sprinkler body 1 is connected to the water spray head 2 by a threaded seal.

[0024] The water spray nozzle 2 is cylindrical, and multiple rings of water spray nozzles 3 are evenly distributed on its outer ring surface. In this embodiment, one ring is provided.

[0025] The water spray head 2 has a centrally located rotating shaft 4, which is mounted on the end wall of the water spray head 2 via a copper bushing bearing and can rotate freely. A ring-shaped boss in the middle of the rotating shaft 4 serves as a limiting part.

[0026] A blocking part 5 and a spiral part 6 are sequentially fitted at the limiting part. The limiting part is used to prevent the blocking part 5 from contacting the water spray head. The connecting part 10 of the blocking part 5 has a connecting through hole that penetrates the connecting part 10. The outer arc surface of the flow limiting part 11 is a shielding surface 12. The curvature of the shielding surface 12 is consistent with the inner arc surface of the water spray head 2, and there is a 0.2mm gap between the two. The spiral part 6 is propeller-shaped.

[0027] The top of the rotating shaft 4 is machined with a threaded portion 7, and the blocking portion 5 and the helical portion 6 are pressed onto the limiting portion by tightening the nut 8. To prevent rotation, a pin groove 9 is opened axially on the mating surface of the rotating shaft 4 with the blocking portion 5 and the helical portion 6, and a square pin is inserted.

[0028] Working process: When large-scale irrigation is required, the water flow drives the blocking part 5 to rotate, so that the shielding surface 12 covers half of the water nozzles 3 (for example, covering one ring of 4 nozzles). At this time, water can only be sprayed from the remaining nozzles, the flow velocity of each nozzle increases, the spraying distance increases from the original 5 meters to 8-9 meters, and the coverage diameter expands from 10 meters to 16-18 meters.

[0029] Example 2:

[0030] This embodiment is basically the same as Embodiment 1, except that: the water nozzle 3 is set in two rings (8 on the top and 8 on the bottom, staggered), and the water nozzle is an atomizing nozzle. Meanwhile, the spiral part 6 uses a spiral groove instead of a spiral rib. This configuration is suitable for irrigating seedlings or fruit trees sensitive to water droplet impact, providing good atomization, and the alternating spraying causes water droplets to fall intermittently, reducing soil erosion.

[0031] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A sprinkler head for orchard irrigation, comprising a sprinkler body (1) with one end for connection to a water pipe and a base, characterized in that: The other end of the nozzle body (1) is fixedly connected to a water spray nozzle (2). Multiple water spray nozzles (3) are evenly distributed circumferentially on the outer ring surface of the water spray nozzle (2). A rotatable rotating shaft (4) is provided inside the water spray nozzle (2). A blocking part (5) and a spiral part (6) are fixedly installed on the rotating shaft (4). The blocking part (5) includes a connecting part (10) and a flow limiting part (11). The flow limiting part (11) is provided with an arc that matches the inner ring surface of the water spray nozzle (2). The matching shielding surface (12) slides and fits against the inner ring surface of the water spray nozzle (2) or leaves a gap; the spiral part (6) is located in the water flow channel and is used to generate a rotational torque under the impact of water flow, driving the rotating shaft (4) and the blocking part (5) to rotate together; during the rotation, the shielding surface (12) passes through each water spray nozzle (3) in sequence, so that each water spray nozzle (3) is periodically blocked and opened, thereby realizing that the water spray nozzle (3) sprays water in turn; Wherein: the spiral part (6) is a tubular structure with spiral blades or spiral grooves, which is integrally formed with the rotating shaft (4) or fixedly connected by a keyway; The gap between the shielding surface (12) and the inner ring surface of the water spray head (2) is 0.1mm to 0.5mm.

2. The orchard irrigation sprinkler head according to claim 1, characterized in that: The two ends of the rotating shaft (4) are mounted on the end wall of the water spray nozzle (2) by bearings to reduce rotational resistance.

3. The orchard irrigation sprinkler head according to claim 1, characterized in that: The water nozzle (3) is a circular hole or an atomizing water nozzle.

4. The orchard irrigation sprinkler head according to claim 1, characterized in that: The water nozzles (3) are distributed in 1 to 3 circles at equal intervals along the circumference of the water nozzle (2).

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