Switching knob and electric/manual closing and opening switching device with same

Abstract

The invention provides a switching knob and an electric / manual closing and opening switching device with the switching knob. The switching knob comprises a pushing rod, a knob, a wedge block and an installing seat, wherein the knob is connected with the upper part of the pushing rod, rotates synchronously with the pushing rod, and is provided with an indicating mark; the installing seat is provided with a longitudinal through hole; a radial bump is arranged at the lower part of the pushing rod; a tubular component suitable for being inserted from the bottom of the pushing rod is arranged at the upper part of the wedge block; a circumferential groove is formed in the sidewall of the tubular component, and used for fixing and preventing the radial bump from moving up and down relative to the tubular component when an inclined face of the bottom of the wedge block is positioned in the longitudinal through hole; a gap is formed in the sidewall of the installing seat and extends out of the longitudinal through hole from the inclined face at the bottom of the wedge block and then is positioned in the same plane with the circumferential groove; and the gap is used for fixing and preventing the radial bump from moving up and down relative to the installing seat. The switching knob and the electric / manual closing and opening switching device with the switching knob have extremely good effect on indicating.

Description

technical field [0001] The invention relates to a conversion knob and an electric / manual opening and closing device with the conversion knob, belonging to the field of state conversion control. Background technique [0002] According to the needs of the operation, during the use of the circuit breaker, it is often necessary to realize the conversion operation between the electric opening and closing and the manual opening and closing. Therefore, the converter application for the electric / manual opening and closing of the circuit breaker is pregnancy. [0003] Chinese patent document CN201946538U discloses a kind of leakage circuit breaker electric manual opening and closing button type converter, such as figure 1 As shown, the converter includes a converter base 5, the converter base 5 is close to the moving plate 6, and the converter base 5 is provided with a sliding groove along the axial direction, and a The moving rod 4, the upper end of the moving rod 4 stretches out ...

AI Technical Summary

Problems solved by technology

When in use, by rotating the indicator knob B, the notch on the front of the indicator knob B can be made to correspond to the label on the indicator sheet A. During the rotation, the middle cylinder C of the guide transmission member does not move, and only the indication rotation B rotates relative to the middle cylinder C, the indication principle of most indication knobs in the prior art is the same as the indication principle disclosed in this document, at this time, it is found that it is difficult to The indication knob disclosed in this document is applied to the existing leakage circuit breaker electric / manual opening and closing button type converter, because if the above-mentioned indication knob is simply used instead of the button, then in the process of rotating the indication knob , the indicating knob should be rotated relative to the moving rod, while the moving rod is still not moving. However, for the above converter, if the moving rod does not move during the process of rotating the indicating knob, Just can't make the inclined plane of described wedge provide conversion action force for the conversion between electric and manual, thereby can't realize the conversion between electric and manual, and then make converter invalid, therefore, simply apply the indicating knob to the existing The problem of poor indication of the existing converters cannot be solved in the push-button converter

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