Two-in one-out direct-acting anti-backflow electromagnetic valve

Abstract

The invention provides a two-in one-out direct-acting anti-backflow electromagnetic valve. The two-in one-out direct-acting anti-backflow electromagnetic valve comprises a valve body base, a movable valve element, a spring, a magnetism isolating pipe assembly, a sealing ring, a fixed sealing gasket, a gasket, a coil and a nut. Inner threads are arranged in a middle cavity of the valve body base and are in screw joint with the magnetism isolating pipe assembly. The magnetism isolating pipe assembly is in screw joint with the nut, and the movable valve element is sleeved with the magnetism isolating pipe assembly. A step through hole is formed in the magnetism isolating pipe assembly, and the spring is limited in the step hole. The two sides of the cylindrical surface of the movable valve element are cut into planes in a left-right symmetry manner, and a balance hole is formed. Round grooves are formed in the centers of the planes at the upper end and the lower end of the movable valve element, and the fixed sealing gasket is buckled and pressed at the round grooves. The two-in one-out direct-acting anti-backflow electromagnetic valve with the structure can replace two electromagnetic valves and two check valves in the prior art, backflow mixing of different media in a pipeline is prevented, corresponding consumables and construction cost of pipelines, circuits, control cabinets and the like are reduced, and the pipeline water leakage and circuit electric leakage probability is reduced.

Description

technical field [0001] The invention relates to a two-inlet and one-outlet direct-acting anti-reflux solenoid valve, in particular to an automatic control system and equipment for supplying clean water and liquid medicine in animal husbandry. Background technique [0002] In animal husbandry, water plays a very important role in the digestion, absorption, transportation and utilization of nutrients, the elimination of metabolites in the body and the regulation of body temperature of any livestock; livestock can obtain water through feed and internal metabolism, However, it is far from enough to rely solely on the water in the feed and the water metabolized in the body. Therefore, in actual feeding, it is necessary to supplement clean drinking water to livestock to ensure their normal growth needs. Feed medicine to enhance immunity and prevent the outbreak of plague. With the continuous development and improvement of the breeding level, many livestock farms have equipped wit...

AI Technical Summary

Problems solved by technology

A medium-scale farm needs to use a large number of solenoid valves and check valves to equip automatic control systems and equipment, which will inevitably increase the number of parts used, increase the input cost of corresponding pipelines, lines, control cabinets and other consumables, and construction costs and use costs, but also increases the risk of water leakage at the pipe connection and electric line leakage, resulting in losses

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