Reflection rotary spray head

Abstract

The invention relates to sprinkling irrigation devices, in particular to a reflection rotary spray head. The reflection rotary spray head comprises a V-shaped rotary arm, a round-head sprinkling spray head body arranged on the V-shaped rotary arm, nozzles formed in the top end of the V-shaped rotary arm, a dustproof cap connected to the lower portion of the V-shaped rotary arm, a water inlet shaft pipe arranged on the lower face of the dustproof cap, an oil lubricating base arranged on the outer face of the water inlet shaft sleeve in a sleeving mode and a sealing screw plug connected to the lower face of the water inlet shaft pipe. The reflection rotary spray head is simple and reasonable in structure; a method and a technology which are completely different from a rocker arm type and jet flow type spray head rotating principle are adopted to manufacture the reflection rotary spray head which is simple and reasonable in structure, good in sealing effect, small in failure rate and even in water spraying, saves water resources and is of an oil lubricating structure. The spray head can be applied to irrigation of farmlands, parks, landscapes, fruits, vegetables, flowers and the like which are all needed to be irrigated.

Description

Technical field [0001] The invention relates to a sprinkler irrigation device, in particular to a reflective rotating sprinkler, which can be used for irrigation of farmland, gardens, landscapes, fruits, vegetables, flowers and the like. Background technique [0002] At present, there are two types of rotary sprinklers used in the market. The first is a rocker-arm rotary sprinkler designed by mechanical principles (rocker-arm sprinkler for short), and the second is a jet-rotary sprinkler designed by fluid mechanics. Nozzles (jet nozzles for short), the nozzles of the above two structures are found to have certain shortcomings and deficiencies when they are used. The specific manifestations are: [0003] The rocker arm sprinkler has the following disadvantages: ①, uneven spraying; ②, during the working process of the nozzle, the water sprayed by the main roar produces an impact force on the air, and the air produces an equal and opposite reaction force on the nozzle. This reaction ...

AI Technical Summary

Problems solved by technology

[0003] The rocker nozzle has the following disadvantages: ①, uneven spraying; ②, during the working process of the nozzle, the water sprayed by the main nozzle generates an impact on the air, and the air produces an equal and opposite reaction force on the nozzle. This reaction force produces a radial force on the bearing of the rotating body of the sprinkler, which leads to accelerated wear of the bearing. The water flow from the hole impacts the rocker arm and moves to one side, and then moves back under the action of the return spring, and beats the nozzle to rotate one step. At this time, the rocker arm is at the position of the water spray hole and under the impact of the water flow Move again, and move back under the action of the return spring and beat the nozzle to rotate one step. In such a reciprocating mechanical movement, the nozzle rotates step by step and stop, and its rotation is uneven and unstable; ④ It is an energy-consuming process that the water ejected from the spray hole of the rocker-arm nozzle hits the rocker arm to do work. It takes about 30% of the energy in the process of spraying water to drive the nozzle to rotate; ⑤. During the work of the nozzle, due to The effect of the air reaction force makes the entire sprinkler irrigation equipment have to be designed to strengthen the stability of the tripod and the strength of the upper water pipe. What is more serious is that the larger the nozzle, the greater the reaction force, which seriously restricts the manufacture of large-scale structure nozzles and cannot be realized. The use of large-scale and large-area irrigation of rotary sprinklers; ⑥, due to the complicated structure of the rocker-arm sprinklers and the complex structure of the jet-type sprinklers, the reaction force generated by the air on the sprinklers cannot be eliminated during the working process, and the bearings of the rotating body Under the action of a large radial impact force, the sealing effect will be poor, and the nozzles will fail frequently during the working process. The existing rotating body bearing structure is not closed, and its lubrication is realized by water lubrication. The disadvantage is that In actual work, due to impurities in the water, the rotation of the bearing of the rotating body is often hindered. At the same time, due to poor sealing, the pressure of the water will decrease, and the effective range of the irrigation water spray will not be reached. In addition, a large amount of water will be caused. Waste of resources, and the addition of water lubrication will accelerate the wear of the rotating bearing parts and reduce the service life; ⑦. The jet nozzle has solved the two shortcomings of the rocker nozzle's unstable rotation and uneven spraying water due to the change of the rotation principle, but There are still shortcomings and deficiencies

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