Spherical button type pressure compensation water dropper with suck-back prevention function

Abstract

The invention relates to a spherical button type pressure compensation dripper with an anti-suck-back function, which comprises a shell and a spherical compensation component, a water inlet, a wide-diameter main flow channel, a variable-diameter main flow channel and a narrow-diameter main flow channel are sequentially arranged in the shell, and the spherical compensation component is positioned in a channel formed by the wide-diameter main flow channel and the variable-diameter main flow channel; a spiral auxiliary runner extending from the large-diameter end of the variable-diameter runner to the narrow-diameter main runner is arranged on the inner side wall of the variable-diameter runner, and an energy dissipation boss located below the spiral auxiliary runner is fixedly arranged in the narrow-diameter main runner; the water outlet end of the narrow-diameter main flow channel is covered with a patch connected with the shell, and water permeable holes are formed in the patch. The structure is simple, the shell, the compensation part and the elastic patch can be directly formed through mold injection molding or general blanking treatment, and the manufacturing process is simple; the spherical elastomer is used as a compensation component, and the durability of the spherical elastomer is far better than that of a common sheet-shaped compensation structure; the elastic patch can prevent the suck-back phenomenon generated at the water outlet during shutdown, and soil and other impurities are prevented from being sucked in.

Description

technical field [0001] The invention relates to the technical field of water-saving irrigation equipment in agricultural production, in particular to a button-type dripper with an anti-suckback function and a spherical elastic body as a compensation component, in particular to a ball with an anti-suckback function Type button pressure compensated dripper. Background technique [0002] In modern agricultural production, drip irrigation, as one of the irrigation methods with the highest water-saving efficiency, has been widely used in production scenarios such as fields, courtyards, and greenhouses. The button-type pressure compensation dripper is one of the common dripper forms in the field of drip irrigation, but the button-type pressure compensation dripper commonly used at present is usually composed of three parts: the shell body, the silicone compensation sheet and the shell end cover. The cover part is generally made of PE material by injection molding through differen...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the disadvantages of the above-mentioned button type pressure compensating dripper, such as complex assembly, low durability of compensating components, easy inhalation of impurities, general performance, etc., and provides a spherical elastomer as compensating component with simple structure, convenient assembly, and anti-corrosion. Button dripper with suction function

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