Engineering operation control knob

Abstract

The invention relates to an engineering operation control knob which mainly comprises an operation handle, a knob seat, a flexible connector, hexagonal copper columns, a potentiometer, a circuit board, an upper micro-switch, a lower micro-switch, a concave-convex double-layer fixed switching copper block and a jugged positioning ring, wherein the upper micro-switch and the lower micro-switch are fixed on the knob seat through screws; one outer end of the flexible connector is inserted into the inner hole of the concave-convex double-layer fixed switching copper block and connected with the concave-convex double-layer fixed switching copper block through screws, one inner end of the flexible connector is connected with a rotating shaft in the operation handle, and the other inner end of the flexible connector is connected with the potentiometer through screws; and the two groups of six hexagonal copper columns are connected and fixed with the knob seat, the potentiometer and the circuit board through screws. The control knob provided by the invention is convenient to accurate control operation and can control two analog quantity signals and two switch quantity signals; the operation handle is connected with the potentiometer through the flexible connector, thereby strengthening the performance of vibration resistance; and the control knob can be used under the working conditions of vibration.

Description

technical field [0001] The invention relates to a control knob, in particular to an engineering operation control knob. Background technique [0002] In engineering operation control, it is often necessary to control energy changes or motion changes. Such as: the control of the speed of the speed; the control of the retraction of the winch. This kind of control generally requires continuous variable and accurate position. In addition, there are some special requirements for control, such as specific requirements such as protection or indication at a certain position. In the usual engineering operation control, it is required that the controlled analog signal and the switch signal can be correlated, and the switch signal can be sent at a special position of the analog. [0003] The engineering operation control knob currently available on the market uses the potentiometer operating handle to issue a continuously changing analog control command, and uses the switching value ...

AI Technical Summary

Problems solved by technology

[0003] The engineering operation control knob currently available on the market uses the potentiometer operating handle to issue a continuously changing analog control command, and uses the switching value operating handle to issue a switching value control command. There is no correlation between each other, and engineering operation control The operating handles of the knobs are relatively small, it is difficult to perform precise control operations, and the hand feeling is also poor. The operating handles and potentiometers are rigidly connected, and the anti-vibration performance is poor, so they are not suitable for use under vibration conditions.

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