Change-over switch

Abstract

The invention provides a change-over switch. The change-over switch comprises a mounting panel and a rotary handle mounted on the mounting panel, wherein the lower end of the rotary handle is connected with a rotary shaft; the change-over switch also comprises a contact system and a positioning mechanism; the rotary shaft is provided with a first rotary shaft and a second rotary shaft which can move relatively; a movable contact is provided with a first movable contact and a second movable contact in the extension direction of the rotary shaft; the first movable contact is arranged on the first rotary shaft and close to the mounting panel, and the second movable contact is arranged on the second rotary shaft; and the height of the first movable contact is higher than that of the second movable contact. By adoption of the change-over switch, multiple electrical circuits and electrical equipment can be controlled at the same time, abnormal interruption of the electrical equipment can be prevented, and operation accuracy of the electrical equipment is improved.

Description

technical field [0001] The invention relates to an electric appliance control switch, in particular to a changeover switch capable of controlling various circuits. Background technique [0002] As a switching device for two or more power sources or load conversion, the transfer switch is widely used in various electrical equipment with the continuous development of society. [0003] The existing transfer switch has the advantages of multi-contact, multi-position, small size, reliable performance, convenient operation, flexible installation, etc. Therefore, it is mostly used as a switch for introducing power in the electrical control circuit of machine tools, and plays the role of isolating power supply. However, with the continuous deepening of the electrification production process, in order to ensure better applicability of complex electrical equipment, multiple transfer switches are usually installed on the same electrical equipment. Although the transfer switch can impro...

AI Technical Summary

Problems solved by technology

However, with the continuous deepening of the electrification production process, in order to ensure better applicability of complex electrical equipment, multiple transfer switches are usually installed on the same electrical equipment. Although the transfer switch can improve the convenience of using electrical equipment, but The use of multiple electrical switches usually leads to the confusion of the switch control parts, so that the problem of switching errors occurs during the use of electrical equipment, which leads to the interruption of equipment operation and reduces the production efficiency of electrical equipment; at the same time, the use of multiple transfer switches There are often errors in the switching sequence during use, which hinders the normal operation of the electrical equipment and further reduces the production efficiency of electrical equipment.

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