Abstract: A multiple knob structure including a knob top module having a head cover, a silicone keyboard and a head annular PCB, from top to bottom, a bearing module, which includes a bearing holder and a bearing, and a knob bottom module, which includes a bottom cover and a bottom PCB, where the knob bottom module also includes a torsional spring and a rotation damper, the torsional spring is mounted on an installing groove of the bottom cover, the rotation damper is mounted on a rotation damper installing groove of the bottom cover.

Abstract: The invention provides a new-type multiple knob structure comprising a knob top module, a bearing module and a knob bottom module. Thereinto, a knob top module includes head cover, silicone keyboard and head annular PCB from top to bottom; a bearing module includes bearing holder and bearing; a knob bottom module includes bottom cover and bottom PCB. More particularly, a vertical press module is provided in this invention. The vertical press module is comprised of head cover, silicone keyboard, head annular PCB and bearing holder. The vertical press module is mounted on the periphery of the bearing, and it is mounted on the bottom cover with bolts. The new-type multiple knob structure with simple structure and low cost is suitable for knobs with varisized diameters, meeting requirements of the knob structure's application on electrical switch and regulating equipment.