Pressure switch for water pipeline and assembly method of pressure switch

Abstract

The invention discloses a pressure switch for a water pipeline and an assembling method of pressure switch. The pressure switch comprises a base and an upper cover plate, the upper cover plate and the base are connected through threads, a fluid channel is arranged in the base in a penetrating mode, a buffer sleeve is arranged in the fluid channel, pipeline connecting parts are arranged on the two sides of the base and connected with the tail of the base through bolts, a pressure cavity is formed in the position, at the upper end of the fluid channel, of the base, a diaphragm is arranged in the pressure cavity, the upper end of the diaphragm is limited and fixed through a limiting plate, an annular plate is fixedly arranged at the upper end of the limiting plate, a working shaft is arranged in the middle of the annular plate, the bottom of the working shaft abuts against the diaphragm and a first terminal and a second terminal are arranged on two sides of the upper end of the upper cover plate. The first terminal is provided with a first contact point on the inner side of the upper cover plate, the first contact point is fixedly connected with a pushing contact piece, and the second terminal is fixedly arranged on a second contact point at the other end of the pushing contact piece. The pressure switch has the advantages that irreversible damage to the pressure switch is avoided, the stability of the pressure switch is improved, and the service life of the pressure switch is prolonged.

Description

technical field [0001] The invention relates to the technical field of pressure switch control, in particular to a pressure switch for water pipes and an assembly method thereof. Background technique [0002] In today's society, in order to adapt to the pace of modernization, many factories have adopted assembly line production, making large-scale mass production possible, and the daily life environment of human beings is gradually developing towards automation and intelligence, making pressure switches in hydropower, tap water, oil, Chemical, mechanical, hydraulic and other industries will be used. [0003] The pressure switch is a commonly used control device. Its working principle is that when the measured pressure exceeds the rated value, the free end of the elastic element will be displaced, and the switch element will be pushed directly or after comparison to change the on-off state of the switch element to achieve control. The purpose of the measured pressure is to r...

AI Technical Summary

Problems solved by technology

However, instantaneous pressure shocks often occur in the pressure system, which leads to instantaneous pressure shocks when the pressure system starts or operates unstable, which will cause irreversible effects on the diaphragm and the connection end, resulting in the failure of the pressure switch.

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