Spray irrigation nozzle

Abstract

The utility model relates to the technical field of irrigation equipment, in particular to a spray irrigation nozzle which is used for increasing the spray irrigation area. Comprising a cylinder with the top closed and the bottom open, multiple layers of jet holes are formed in the peripheral face of the cylinder at intervals in the axial direction of the cylinder, each layer of jet holes are communicated with an inner cavity of the cylinder and comprise jet grooves formed in the circumferential direction of the cylinder, and jet angles are formed between the jet grooves and the axis of the cylinder. The spraying angles are sequentially increased from top to bottom, and the forming areas of the spraying grooves are sequentially reduced from top to bottom. According to the utility model, the plurality of layers of jet holes are formed in the barrel body, each layer of jet holes comprises the jet grooves, the jet angles of the jet grooves are sequentially increased from top to bottom, and the forming areas of the jet grooves are sequentially reduced from top to bottom, so that the tracks of tap water jetted from the jet holes are different, and the jet distance of the jet holes above is the farthest; and the spraying distance of the lower spraying holes is closest, so that a larger irrigation space can be covered.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation equipment, in particular to a sprinkler head for sprinkler irrigation. Background Technique

[0002] Landscaping is an important part of the urbanization process. It can not only effectively protect the ecological environment, but also improve and enhance the urban living environment. People's demand for urban greening is also increasing. As one of the main equipment for landscaping, the sprinkler irrigation system can not only improve the irrigation efficiency, save manpower and water resources, but also improve the survival rate of plants.

[0003] Chinese utility model CN217012122U discloses a sprinkler irrigation device with adjustable sprinkler heads, including a fixed pile, a liquid delivery pipe, a limiting pipe, a lifting pipe, a rotating seat, multiple arc-shaped pipes, multiple sprinkler heads, two limiting blocks and a sealing layer. A circulation cavity is arranged inside the fixed pile. The liquid delivery pipe is communicated with the upper half area of the fixed pile. Multiple through holes are arranged in the lower half area of the limiting pipe, and two sliding grooves are arranged on the inner wall of the limiting pipe. Multiple limiting grooves are respectively arranged on the two sliding grooves. Sealing layers are arranged on the inner wall of the limiting pipe, the inner walls of the two sliding grooves and the inner walls of the multiple limiting grooves. The lifting pipe is inserted into the limiting pipe. The two limiting blocks are arranged on the outer wall of the lifting pipe, and the two limiting blocks are respectively located in the two sliding grooves. The rotating seat is rotatably installed on the top of the lifting pipe. The two ends of the multiple arc-shaped pipes are respectively communicated with the rotating seat and the multiple sprinkler heads.

[0004] The above patent can achieve circumferential irrigation, but there are still some problems in the use process: when the above patent sprays tap water, the spraying angles are the same. Under a certain pressure, the spraying range is a circular boundary with the spraying distance of one sprinkler head as the radius, and the interior of the boundary cannot be irrigated, resulting in an unsatisfactory sprinkler irrigation effect. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a sprinkler head for sprinkler irrigation, which is used to increase the sprinkler irrigation area.

[0006] The technical solution adopted by the utility model to solve its technical problems is a sprinkler head, including a cylinder with a closed top and an open bottom. A plurality of layers of injection holes are arranged on the outer peripheral surface of the cylinder at intervals along the axial direction of the cylinder. Each layer of injection holes is communicated with the inner cavity of the cylinder. Each layer of injection holes includes an injection groove arranged along the circumferential direction of the cylinder. An injection angle is formed between the injection groove and the axis of the cylinder. The injection angles increase successively from top to bottom, and the opening area of the injection groove decreases successively from top to bottom.

[0007] Further, the injection holes are provided with four layers, and the injection angles are 45°, 55°, 65° and 75° successively from top to bottom.

[0008] Furthermore, a connecting cylinder is coaxially arranged at the bottom of the cylinder body, and an external thread is arranged on the outer surface of the connecting cylinder.

[0009] Furthermore, a connecting cylinder is coaxially arranged at the bottom of the cylinder body, and an internal thread is arranged on the inner surface of the connecting cylinder.

[0010] Furthermore, the number of spray grooves included in each layer of spray holes is at least two.

[0011] The beneficial effects of the present utility model are as follows: By arranging multiple layers of spray holes on the cylinder body, each layer of spray holes includes spray grooves, the spray angles of the spray grooves increase sequentially from top to bottom, and the opening areas of the spray grooves decrease sequentially from top to bottom. With such an arrangement, the tap water trajectories ejected from each spray hole are different, and the spray distance of the upper spray holes is the farthest, while the spray distance of the lower spray holes is the closest, enabling a larger irrigation space to be covered. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 a sectional view of

[0014] Figure 3 is a schematic diagram of another embodiment of the present utility model;

[0015] Figure 4 is Figure 3 a sectional view of

[0016] Reference numerals: 1 - cylinder body; 2 - spray hole; 3 - spray groove; 4 - connecting cylinder; 5 - external thread; 6 - internal thread. Detailed Embodiment

[0017] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0018] Such as Figures 1-4As shown in the figure, a sprinkler head of the present utility model includes a cylinder 1 with a closed top and an open bottom. A plurality of layers of injection holes 2 are arranged at intervals along the axial direction of the cylinder 1 on the outer peripheral surface of the cylinder 1. Each layer of the injection holes 2 communicates with the inner cavity of the cylinder 1. Each layer of the injection holes 2 includes an injection groove 3 arranged along the circumferential direction of the cylinder 1. An injection angle is formed between the injection groove 3 and the axis of the cylinder 1, and the injection angle increases successively from top to bottom. The opening area of the injection groove 3 decreases successively from top to bottom. Among them, the material of the cylinder 1 is stainless steel or plastic. The injection holes 2 communicate with the inner cavity of the cylinder 1. During use, tap water fills the inner cavity of the cylinder 1 and sprays out from the injection holes 2. The injection holes 2 are composed of injection grooves 3. The injection grooves 3 can be integrally formed with the cylinder 1 or processed by a milling cutter. The injection groove 3 is an inclined annular groove. An injection angle is formed between the injection groove 3 and the axis of the cylinder 1. The initial angle of the tap water sprayed out from the injection groove 3 is the angle of the injection angle. In order to prevent the tap water sprayed out from the multiple layers of injection holes 2 from crossing, the injection angle increases successively from top to bottom. At the same time, since the irrigation radius and the circular ring area corresponding to the water flow sprayed out from the uppermost injection holes 2 are the largest, the opening area of the injection grooves 3 of the uppermost injection holes 2 is the largest.

[0019] In order to make the spraying distance the farthest, further, refer to Figures 1-4 , the injection holes 2 are provided with four layers, and the injection angles are 45°, 55°, 65° and 75° successively from top to bottom. According to the parabola principle, when the initial angle is 45°, the throwing distance of the parabola is the farthest. Therefore, the injection angle formed by the injection groove 3 of the uppermost injection holes 2 is 45°, so that the uppermost injection holes 2 can spray the farthest tap water. The injection angle increases successively from top to bottom, making the spraying distance gradually shorter, so as to cover a larger irrigation area.

[0020] In order to facilitate the connection between the cylinder 1 and the water pipe, further, refer to Figure 1 and Figure 2 , a connecting cylinder 4 is coaxially arranged at the bottom of the cylinder 1, and an external thread 5 is arranged on the outer surface of the connecting cylinder 4. A nut matching with the external thread 5 is installed on the water pipe, so that the connection between the cylinder 1 and the water pipe can be quickly realized.

[0021] In order to facilitate the connection between the cylinder 1 and the water pipe, further, refer to Figure 3 and Figure 4 , a connecting cylinder 4 is coaxially arranged at the bottom of the cylinder 1, and an internal thread 6 is arranged on the inner surface of the connecting cylinder 4. An external threaded rod matching with the internal thread 6 is installed on the water pipe, so that the connection between the cylinder 1 and the water pipe can be quickly realized.

[0022] Further, the number of injection grooves 3 included in each layer of the injection holes 2 is at least two.

[0023] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A sprinkler nozzle, comprising a cylinder (1) with a closed top and an open bottom, characterized in that: The outer peripheral surface of the cylinder (1) is provided with a plurality of layers of injection holes (2) arranged at intervals along the axial direction of the cylinder (1), each layer of the injection holes (2) is connected to the inner cavity of the cylinder (1), each layer of the injection holes (2) comprises injection slots (3) arranged along the circumference of the cylinder (1), and an injection angle is formed between the injection slots (3) and the axis of the cylinder (1), the injection angle increases from top to bottom, and the opening area of ​​the injection slots (3) decreases from top to bottom.

2. A sprinkler nozzle as claimed in claim 1, characterized in that: The injection holes (2) are arranged in four layers, and the injection angles are 45°, 55°, 65° and 75° from top to bottom.

3. A sprinkler nozzle as claimed in claim 1, characterized in that: A connecting cylinder (4) is coaxially arranged at the bottom of the cylinder body (1), and an external thread (5) is arranged on the outer surface of the connecting cylinder (4).

4. A sprinkler nozzle as claimed in claim 1, characterized in that: A connecting cylinder (4) is coaxially arranged at the bottom of the cylinder body (1), and an internal thread (6) is arranged on the inner surface of the connecting cylinder (4).

5. A sprinkler nozzle as claimed in claim 1, characterized in that: The number of the injection slots (3) contained in each layer of the injection holes (2) is at least two.

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