A liftable knob

Abstract

The invention discloses a rotary knob capable of ascending and descending. The rotary knob capable of ascending and descending comprises a rotary knob base connected below a cooking bench; a rotary knob assembly capable of ascending and descending is arranged in the rotary knob base; and a driving device capable of driving the rotary knob assembly to ascend and descend is arranged on the rotary knob base. The rotary knob capable of ascending and descending is applicable to the electric appliance control field and is especially applicable to the gas stove firepower adjusting field. The rotary knob capable of ascending and descending is convenient for a user to operate, accurate in firepower adjustment and capable of being hidden.

Description

【Technical field】 [0001] The invention relates to a liftable knob, which is suitable for the field of electric appliance control, especially for the field of fire power regulation of gas stoves. 【Background technique】 [0002] When most gas stoves on the market ignite and adjust the firepower, it is common to first press down the knob to open the electromagnetic valve, and then rotate to ignite and adjust the firepower. During this process, the knob drives the stem of the cock valve to rotate, and the valve stem of the cock valve drives the valve core to rotate. The relative cross-sectional area of ​​the spool hole and the outlet hole of the cock valve changes, and the gas volume also changes, thus playing the role of adjusting the firepower. effect. [0003] However, this type of rotary switch often has the following problems during operation and daily maintenance: [0004] 1. The knob is exposed on the outer surface of the cooker, so it cannot be lifted and lowered, and ...

AI Technical Summary

Problems solved by technology

[0004] 1. The knob is exposed on the outer surface of the cooker, so it cannot be lifted and lowered, and the mechanical feeling is poor;

[0005] 2. Due to the limitation of the downward stroke of the cock valve (child lock or designed for top-opening solenoid valve), there is a gap between the knob and the panel, which is easy to enter sundries or accumulate oil, which is difficult to clean and affects the appearance and use;

[0006] 3. The traditional operation needs to press and turn the knob at the same time to ignite, which is inconvenient to operate and poor user experience;

[0007] 4. The plug valve realizes air opening and closing by adjusting the cross-sectional area of ​​the spool hole and the air outlet. Therefore, when designing the spool, it is necessary to reserve a part that cannot be opened, resulting in the knob not being able to rotate 360°, and the rotation stroke is small. , the adjustment of firepower is not accurate;

[0008] 5. The traditional knob rotation method has no visual, auditory or tactile feedback to help users know the firepower level in time, but users need to watch the fire and fire position indication with their eyes while rotating the knob during use, which is inconvenient to operate and poor user experience

Images