Analog switch showing words

Abstract

The invention discloses an analog switch showing words that can separate or interlock at a switch base when an arm is touched. The analog switch showing words comprises a touch arm, a face cover, a window sheet, a word disc, and a bottom plate. According to the technical points, two semi-circular shaft ends of the touch arm are provided with flat tenons, the semi-circular shafts are provided withconvex teeth, the convex teeth are inserted into through holes in the face cover so as to combine with two of four internal teeth, the window sheet is arranged in the face cover, non-transparent coloris printed on the window sheet except the word window and a line window at where no color is printed, words like separate and combine and a touch line are printed on a word disc below the window sheet, non-transparent ground color equal to or slightly greater than length and width of the word window is printed below words, a flat hole in the word disc is sleeved on the flat tenon, the bottom plate below the word disc is embedded in a peripheral step of the face cover, a seam is glued with adhesive, words like "combine" or "separate" are printed on the bottom plate below the word window, and ajoint of the face cover and a bulge is provided with two limit blocks limiting a rotating angle of the touch arm. The analog switch showing words are widely applied to fields of industrial and miningpower and process simulation.

Description

technical field [0001] The invention relates to the technical field of analog screens, in particular to an analog switch for displaying characters. Background technique [0002] The analog screen is widely used in the fields of electric power, process flow and various industrial equipment control. The analog switch on the analog screen is the main part of the analog operation. The prior art single column analog switch, patent number: 201010104218.3, is composed of a base column, a rotating arm and a sleeve. Its defects are: 1. Although there are text display for opening and closing, the text and the switch are not a whole, which greatly restricts its application; 2. The rotating arm cannot be pulled out from the base column, and then inserted into another analog base column 3. The sleeve in the switch is small and round, and it is often rolled and lost during assembly, resulting in waste. [0003] How to integrate the text display with the analog switch and remove the eas...

AI Technical Summary

Problems solved by technology

Its defects are: 1. Although there are text display for opening and closing, the text and the switch are not a whole, which greatly restricts its application; 2. The rotating arm cannot be pulled out from the base column, and then inserted into another analog base column 3. The sleeve in the switch is small and round, and it is often rolled off and lost during assembly, resulting in waste

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