Switch and installation method

Abstract

The invention discloses a switch and an installation method. The switch comprises a turn button, a protruded tooth assembly, an elastic piece, a sealing ring and a hollow casing, a lantern ring sleeves protruded teeth to form the protruded tooth assembly, the sealing ring and the elastic piece are placed in the casing, and an open groove is arranged opposite to the elastic piece; the protruded tooth assembly is inserted into the elastic piece, and the protruded tooth assembly is pre-compressed, so that one end of the protruded teeth abuts against the sealing ring for once; the turn knob is inserted into one end of the sealing ring, and an annular wall arranged in the casing is inserted into an annular groove formed in the turn button, and the turn button is fixedly connected to the protruded tooth assembly via a fastening piece; and the turn button is rotated to detect whether the protruded teeth can rotate, stretch and contract in the casing normally. The turn button covers the casing so that the switch plays a dustproof role, the open groove is arranged towards the turn button, a flange is fit to the inner wall of the casing, liquid is prevented from passing a gap between the sealing ring and casing due to hydraulic difference and influencing the circuit, and the installation method is characterized by convenient operation and high efficiency.

Description

technical field [0001] The present invention relates to a circuit controller, more specifically, it relates to a switch and an installation method. Background technique [0002] A switch used to control the start or stop of equipment, which includes a knob, a sealing ring, and a hollow casing, because the knob is inserted in the casing, when the switch works in a dusty environment, such as ceramics, textile factories In the factory building, dust easily passes through the gap between the knob and the casing, and thus enters the casing. The long-term accumulation will easily hinder the normal rotation of the knob. In addition, the opening groove on the sealing ring is set against the knob. A groove is formed between the sealing ring and the inner wall of the casing, and the groove is at the end of the sealing ring opposite the knob, the liquid flows into the groove after entering the casing, and when the hydraulic pressure difference is too large, the liquid in the groove squ...

AI Technical Summary

Problems solved by technology

[0002] A switch used to control the start or stop of equipment, which includes a knob, a sealing ring, and a hollow casing, because the knob is inserted in the casing, when the switch works in a dusty environment, such as ceramics, textile factories In the factory building, dust easily passes through the gap between the knob and the casing, and thus enters the casing. The long-term accumulation will easily hinder the normal rotation of the knob. In addition, the opening groove on the sealing ring is set against the knob. A groove is formed between the sealing ring and the inner wall of the casing, and the groove is at the end of the sealing ring opposite the knob, the liquid flows into the groove after entering the casing, and when the hydraulic pressure difference is too large, the liquid in the groove squeezes the seal The ring deforms it, and then passes through the gap formed between the sealing ring and the inner wall of the casing, causing damage to the circuit

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