Rocker arm type sprinkling irrigation sprayer and nozzle structure

Abstract

The utility model relates to a nozzle structure of a spray irrigation sprayer, which comprises a water outlet pipe with a pipe cavity, a nozzle cap connected with the end cap of the water outlet pipe, a pressurizing pipe inserted in the pipe cavity of the water outlet pipe, and a water flow pressurizing channel arranged in the pressurizing pipe. A water flow pressurization structure is arranged in the water flow pressurization channel, and the front end of the water flow pressurization channel is connected with the conical cavity. The utility model further discloses a rocker arm type sprinkling irrigation sprayer with the nozzle structure. The nozzle has a good pressurizing effect and can adapt to the design of nozzles with larger sizes, so that the spray irrigation effect of the nozzle is improved.

Description

Technical Field

[0001] This utility model relates to agricultural or garden irrigation equipment, specifically a rocker arm sprinkler head. Background Technology

[0002] The rocker arm of a rocker-arm sprinkler head (also known as a "water hammer" sprinkler) operates by transmitting a jet of water from the nozzle. The rocker arm is typically equipped with a return spring to achieve rotational reset, thus reciprocating under the impact of the jet and the action of the return spring. However, existing rocker-arm sprinkler heads rely solely on a conical cavity at the nozzle tip for pressurization. While this might be suitable for some small sprinkler heads with short nozzle designs, it's not feasible for large, multi-nozzle designs, limiting the sprinkler's effectiveness. Furthermore, the nozzle placement in existing sprinkler heads is often inefficient, resulting in poor irrigation performance. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a nozzle structure that has a good pressurization effect and can adapt to larger nozzle designs, thereby improving the spraying effect of the nozzle.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a nozzle structure for a sprinkler head, comprising a water outlet pipe having a cavity, a nozzle cap being attached to the end of the water outlet pipe, the nozzle cap having a conical cavity and a spray hole located at the end of the conical cavity, characterized in that: it further comprises a pressure boosting pipe inserted into the cavity of the water outlet pipe, the pressure boosting pipe having a water flow pressure boosting channel, a water flow pressure boosting structure being provided in the water flow pressure boosting channel, and the front end of the water flow pressure boosting channel being connected to the conical cavity.

[0005] Preferably, the water flow pressurization structure includes a water flow pressurization channel with a conical structure that is large at the tail end and small at the front end.

[0006] Preferably, the water flow pressurization structure includes a number of stiffeners evenly distributed circumferentially inside the wall of the pressurization pipe, and the cut-off ends of each stiffener extending radially along the water flow pressurization channel are spaced apart.

[0007] Preferably, one end of the rib corresponding to the water inlet end of the water flow pressurization channel is arc-shaped.

[0008] By adopting the above technical solution, an accessory, namely a pressure booster pipe, is added to the water outlet pipe corresponding to the nozzle. The water flow is initially pressurized before entering the nozzle cap through the pressure booster pipe, so that the water output can still be guaranteed even with the increased nozzle size design. Since the pressure booster pipe is independently processed and assembled into the water outlet pipe, it can be easily processed and shaped.

[0009] Another objective of this invention is to provide a rocker arm sprinkler head that can be designed for large-scale applications and has good irrigation performance. The head includes a sprinkler body with a central axis and a rocker arm assembly mounted on the central axis. The rocker arm assembly includes a rocker arm with arm plates extending to both sides. The sprinkler body has a main irrigation inlet for receiving irrigation fluid and several nozzles for releasing a directional jet of irrigation fluid. Each nozzle includes two main nozzles that correspond to and cooperate with the two arm plates of the rocker arm. One of the main nozzles includes a water outlet pipe with a cavity, a nozzle cap at the end of the water outlet pipe, the nozzle cap having a conical cavity and a spray hole at the end of the conical cavity, and a pressure boosting pipe inserted into the cavity of the water outlet pipe. The pressure boosting pipe has a water flow pressure boosting channel with a water flow pressure boosting structure within it, and the front end of the water flow pressure boosting channel is connected to the conical cavity. One of the main nozzles employs a pressure booster tube design, allowing for larger nozzle sizes, such as lengthening and thickening. The pressure booster tube provides initial pressurization to the water flow before it enters the nozzle cap, ensuring reliable water output even with the increased nozzle size. This enables more diverse nozzle designs and enhances the irrigation effect. Because the pressure booster tube is independently machined and assembled into the outlet pipe, it can be easily manufactured, thus facilitating the manufacturing of the entire sprinkler head.

[0010] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0011] Figure 1 This is a top view of the rocker arm irrigation sprinkler head, where the nozzle structure of the sprinkler head of this utility model is located.

[0012] Figure 2 for Figure 1 A sectional view taken along line AA.

[0013] Figure 3 This is an exploded view of the nozzle structure of the sprinkler head of this utility model;

[0014] Figure 4 This is a three-dimensional view of the rocker arm irrigation sprinkler head, where the nozzle structure of the sprinkler head of this utility model is located.

[0015] Figure 5 This is a schematic diagram of the booster pipe of this utility model;

[0016] Figure 6 This is a schematic diagram of another application of the nozzle structure of the sprinkler head of this utility model. Detailed Implementation

[0017] See appendix Figures 1-5This utility model discloses a nozzle structure for a sprinkler head, suitable for long and large nozzle designs, and adaptable to large-scale sprinkler head designs. The nozzle 1-1 structure includes a water outlet pipe 11 with a cavity 111. A nozzle cap 12 is capped at the end of the water outlet pipe 11. The nozzle cap 12 can be threaded onto the end of the water outlet pipe 11. The nozzle cap 12 has a conical cavity 121 and a spray hole 122 located at the end of the conical cavity 121. A pressure boosting pipe 13 is arranged inside the cavity of the water outlet pipe 11. The pressure boosting pipe 13 has a water flow pressure boosting channel 131, and a water flow pressure boosting structure is provided inside the water flow pressure boosting channel 131. The front end of the water flow pressure boosting channel 131 is connected to the conical cavity 121. In this way, the water flow is pressurized when it enters the water outlet pipe of the nozzle, thus avoiding the problem of insufficient water pressure under the enlarged nozzle size design; and the independent pressure boosting pipe design allows for the fabrication of auxiliary boosting structures. The installation of the booster pipe involves a limiting end wall at the inner end of the outlet pipe 11, with the inner end of the booster pipe 13 supported on the limiting end wall, and the outer end of the booster pipe being pressed and fixed by a nozzle cap.

[0018] As a preferred embodiment of this utility model, the water flow pressurization structure includes a water flow pressurization channel 131 that adopts a conical structure with a larger tail end and a smaller front end. That is, the water flow pressurization channel adopts a conical structure with a larger tail end (the end closer to the water inlet port of the outlet pipe 11) and a smaller front end (the end closer to the nozzle cap 12) to achieve the water pressurization effect.

[0019] In another embodiment of this utility model, the water flow pressurization structure includes a plurality of ribs 132 evenly distributed circumferentially within the wall of the pressurization pipe 13. The cut-off ends 1321 of each rib 132 extending radially along the water flow pressurization channel 131 are spaced apart. The ribs occupy space, thereby increasing water pressure; in particular, the design of the ribs, combined with the conical structure of the water flow pressurization channel, can segment and pressurize the water flow to a certain extent, improving the pressurization effect. One end of the rib 132 corresponding to the water inlet end of the water flow pressurization channel 131 is arc-shaped. The arc-shaped end 1322 of the rib reduces water flow obstruction, allowing the fluid to enter the pressurization pipe more smoothly.

[0020] like Figures 1-3As shown, as an application of the nozzle structure of this utility model, it can be used in rocker arm irrigation sprinklers to meet the large-scale design of rocker arm irrigation sprinklers. The rocker arm irrigation sprinkler includes a sprinkler body 1 with a central shaft 10 and a rocker arm assembly mounted on the central shaft 10. The rocker arm assembly includes a rocker arm 21 with arm plates 211 extending to both sides. The rocker arm 21 is equipped with a return spring 22. The sprinkler body 1 has a main irrigation inlet 14 for receiving irrigation fluid and a plurality of nozzles for releasing directional jets of irrigation fluid. The nozzles include two main nozzles 1a that correspond to the two arm plates 211 of the rocker arm 21 respectively. One of the main nozzles 1a can be designed with a larger and longer size and adopt the nozzle structure in the above embodiment, thereby improving the spray irrigation capacity of the nozzle.

[0021] To further improve the irrigation effect, the nozzle also includes a short nozzle 1b, which is located below one of the main nozzles 1a. The outlet pipe diameter of the short nozzle 1b is smaller than that of the main nozzle 1a, and the outlet pipe length of the short nozzle 1b is shorter than that of the main nozzle 1a. A water outlet hole 1c is provided on the sprinkler head body 1 on the side opposite to the short nozzle 1b. Two opposing baffles 1d protrude from the outer side of the water outlet hole 1c.

[0022] The rocker arm type sprinkler head of this utility model realizes four different spray irrigation nozzles (main nozzle 1a, short nozzle 1b, and spray irrigation outlet 1c), thereby increasing the irrigation coverage area and improving the irrigation effect. Due to the nozzle design with independent pressure boosting effect, the entire sprinkler head can be designed to be large-scale, while meeting multiple different types of spray irrigation outlet designs, thus improving the sprinkler head's spray irrigation effect.

[0023] Of course, the nozzle structure of this utility model, under modified shape and structure, can also be applied to other types of irrigation nozzles, such as... Figure 6 Another application shown is where the booster tube's booster structure is only a tapered design.

Claims

1. A nozzle structure of a sprinkler head, comprising a water outlet pipe having a pipe cavity, an end cap of the water outlet pipe being connected with a nozzle cap, the nozzle cap having a tapered cavity and a spray hole at an end of the tapered cavity, characterized in that: It also includes a booster pipe inserted into the outlet pipe cavity. The booster pipe has a water flow boosting channel and a water flow boosting structure in the water flow boosting channel. The front end of the water flow boosting channel is connected to the conical cavity.

2. The nozzle structure of a sprinkler head according to claim 1, characterized in that: The water flow pressurization structure includes a water flow pressurization channel with a conical structure that is large at the tail end and small at the front end.

3. A nozzle structure for a sprinkler head according to claim 1 or 2, wherein: The water flow pressurization structure includes several stiffening plates evenly distributed circumferentially inside the wall of the pressurization pipe, and the cut-off ends of each stiffening plate extending radially along the water flow pressurization channel are spaced apart.

4. The nozzle structure of a sprinkler head according to claim 3, wherein: The end of the rib corresponding to the water inlet of the water flow pressurization channel is arc-shaped.

5. A rocker arm type sprinkler head, comprising a sprinkler head body having a central shaft and a rocker arm assembly mounted on the central shaft, the rocker arm assembly comprising a rocker arm having arm plates extending to both sides, the sprinkler head body having a main irrigation inlet for receiving irrigation fluid and a plurality of nozzles for releasing a directional jet of irrigation fluid, the nozzles including two main nozzles corresponding to and cooperating with the two arm plates of the rocker arm, characterized in that: One of the main nozzles has the nozzle structure described in any one of claims 1 to 4 above.

6. The swing arm sprinkler head of claim 5, wherein: The nozzle also includes a short nozzle located below one of the main nozzles, and the outlet pipe diameter of the short nozzle is smaller than that of the main nozzle, and the outlet pipe length of the short nozzle is shorter than that of the main nozzle.

7. The swing arm sprinkler head of claim 6, wherein: The sprinkler head body has a water outlet hole on the side opposite to the short nozzle, and two opposing baffles protrude from the outside of the water outlet hole.

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