Rocker arm type sprayer and sprinkling irrigation method

Abstract

The rocker arm type sprayer comprises a hollow shaft, a spraying pipe, a rocker arm and a rocker arm spring, the bottom of the spraying pipe is rotationally connected with the hollow shaft, an auxiliary nozzle assembly is arranged at the side bottom of the spraying pipe, a main nozzle assembly is arranged at the top end of the spraying pipe, and the main nozzle assembly and the auxiliary nozzle assembly each comprise a nozzle which is communicated with the spraying pipe and can be rotationally adjusted relative to the spraying pipe; the spray pipe is provided with a hit block and a rocker arm shaft, the rocker arm comprises a first arm rod and a second arm rod, the rocker arm is provided with the hit block, and the first arm rod is provided with a bias plate and a flow guide plate. The rocker arm type spray head for full-circle spraying or fan-shaped spraying can obtain the maximum range, reduce the spray irrigation strength, improve the spray irrigation uniformity and reduce the cost by adjusting the main jet flow angle and the auxiliary jet flow angle, has good wind resistance under normal working pressure, and can ensure good atomization level under low pressure.

Description

technical field [0001] The invention belongs to the field of sprinkler irrigation equipment, in particular to a rocker-arm sprinkler head and a sprinkler irrigation method. Background technique [0002] Sprinkler irrigation is an irrigation method in which pressurized water formed by pumping or natural drop is transported to the nozzle through the pipeline, and then the nozzle sprays the pressurized water into the air to form fine water droplets or mist and sprinkle it on the plants or the ground. It has the advantages of saving labor, water, land, energy saving, increasing production, not destroying the soil structure, adjusting the ground climate and not being restricted by terrain, etc., and is widely used in gardening, agriculture and other fields. Sprinkler irrigation equipment is generally composed of power equipment, water pipelines, monitoring systems and sprinklers, among which rocker sprinklers are important irrigators in irrigation equipment. [0003] The rocker-...

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Problems solved by technology

[0003] The rocker-arm sprinklers in the prior art only use angle-fixed nozzles to irrigate water at the end of the spray body, and there are the following problems: (1) For traditional sprinkler irrigation, under normal working pressure, the wind speed has a great influence on the utilization coefficient of irrigation water and the shaking rate. The combined spacing of the arm sprinklers has a greater impact, that is, the greater the wind speed, the lower the irrigation water utilization coefficient, and the smaller the combined spacing of the sprinklers, resulting in poor water-saving effects of the sprinklers and increased equipment costs; (2) by reducing the working pressure can reduce The degree of atomization of the nozzle increases the diameter of the droplet and improves the wind resistance of the nozzle, but it will make the radial water distribution of the rocker nozzle worse, and a large amount of water gathers at the end of the range, while there is a very small amount of water in the middle of the range , resulting in local overspray phenomenon, it is difficult to meet the maximum range of the nozzle, suitable irrigation intensity and radial water distribution uniformity only by adjusting the working pressure, thus affecting the yield and quality of crops; To improve the atomization performance, but the structure is complex, increasing the design and manufacturing costs

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