Mechanical switch integrating knob and knob functions

Abstract

The invention discloses a mechanical switch integrating a knob and knob functions, which comprises a knob, a rotating sleeve, pressing blocks, a first elastic piece, a first movable elastic piece, a first fixed contact, a pressing rod, a second movable elastic piece, a second fixed contact and a second elastic piece, wherein the rotating sleeve is driven by the knob to rotate; the number of the pressing blocks is at least two; the pressing blocks move downwards under the action of the rotating sleeve; the first elastic piece enables the pressed pressing blocks to have the tendency of moving upwards; the first movable elastic piece moves downwards along with the pressing blocks and is in electric contact with the first fixed contact; and the second movable elastic piece moves downwards along with the knob and is in electric contact with the second fixed contact. After the mechanical switch knob is rotated, a corresponding gear is started; and after the knob is pressed down, the pressingrod can be driven to move downwards, then the switch can be triggered, one knob can achieve the rotating and pressing functions at the same time, when the knob is used for an extractor hood, different fan gears are matched with the same lighting switch, the national standard requirement that the lighting switch can be independently controlled is met, the structure of the knob switch is simplified, and user operation is facilitated.

Description

technical field [0001] The invention relates to a mechanical switch, in particular to a mechanical switch with integrated knob and knob function. Background technique [0002] Existing range hoods are generally equipped with a mechanical switch for adjusting the gear position of the fan and turning on and off the lighting lamp, and the mechanical switch is a knob switch. At present, the national standard GB / T 17713-2011 of range hoods requires that "the lighting switch should be independently controlled". Two knob positions "fan on + light on" and "fan on + light off" (for example, in the case of the first gear of the fan, the knob needs to have two gears of "first gear + light on" and "first gear + light off" ). Therefore, when there are many fan gears of the range hood, there are many knob gears. Not only the structure of the knob switch is relatively complicated, the manufacturing cost is high, but also it is not convenient for the user to operate. To sum up, the exist...

AI Technical Summary

Problems solved by technology

Therefore, when there are many gears of the range hood fan, there will be many knobs. Not only the structure of the knob switch is complicated, the manufacturing cost is high, but also it is not easy for the user to operate.

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