Rotary knob component with self-locking and positioning functions

Abstract

The invention relates to the technical field of washing, in particular to a rotary knob component with self-locking and positioning functions. The rotary knob component is applied to controllers of household appliances such as washing machine and the like and comprises a rotary knob and a fixing base, the rotary knob is provided with a bushing, the fixing base is provided with a positioning sleeve which can be matched with the bushing, the bushing can be rotatably inserted into the positioning sleeve and is provided with an annular clamping groove, a clamping claw corresponding to the annular clamping groove is arranged on the positioning sleeve of the fixing base, and the clamping claw is clamped in the annular clamping groove when the bushing and the positioning sleeve are matched. The rotary knob component is simple in structure and assembly mode and low in production cost, and the problem of eccentricity of the rotary knob due to shaking is solved. Preferably, a height difference is formed between the lower edge of a shell and the top end of a boss, so that water is prevented from entering the washing machine even if the water enters a gap between the rotary knob and the fixing base, and the rotary knob component realizes self-locking, positioning and waterproof functions at the same time.

Description

technical field [0001] The invention relates to the technical field of washing, in particular to a controller knob assembly of a household appliance such as a washing machine with self-locking and positioning functions. Background technique [0002] The control panel of the washing machine in the prior art is equipped with a knob for selecting the washing mode or washing time. The knob on the existing washing machine and its positioning device include a knob and a support fixed on the control panel of the washing machine. The shaft sleeve is vertically provided with a guide sleeve on the support, and the shaft sleeve passes through the guide sleeve and is connected with other controllers behind the control panel. In order to facilitate user adjustment, the size of the knob is relatively large, and its axial distance is relatively long, so the length of the shaft sleeve is also relatively long, and the thickness of the support fixed on the control panel is determined accordin...

AI Technical Summary

Problems solved by technology

In order to facilitate user adjustment, the size of the knob is relatively large, and its axial distance is relatively long, so the length of the shaft sleeve is also relatively long, and the thickness of the support fixed on the control panel is determined according to the thickness of the control panel, which is generally relatively thin. After the shaft sleeve on the knob passes through the guide sleeve and is fixed, the upper part of the shaft sleeve has a long distance and is not guided by the guide sleeve, so the positioning of the support to the knob is insufficient, causing the knob to shake seriously, and the eccentric phenomenon is serious during assembly

[0003] In view of the above problems, there is an urgent need for a knob assembly with self-locking and positioning functions to solve the problems of insufficient positioning of the knob in the prior art, causing serious shaking of the knob and serious eccentricity during assembly

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