Mechanical emergency starting device of contactor

Abstract

A mechanical emergency starting device of a contactor comprises a bottom plate, a first support and an opening and closing mechanism, the first support and the opening and closing mechanism are arranged on the bottom plate, a partition plate is arranged in the first support, the opening and closing mechanism is located below the partition plate, and a linkage mechanism for driving the opening and closing mechanism to be opened or closed is arranged on the partition plate. The device is characterized in that the linkage mechanism comprises a frame, a handle shaft and a linkage rod, the handle shaft is movably arranged on the first support in a penetrating mode, the linkage rod is movably arranged on the partition plate in a penetrating mode, the linkage rod is aligned with the opening and closing mechanism, a sliding block is arranged on the bottom face of the frame in a penetrating mode and can move left and right on the frame, and the handle shaft can be rotated to drive the sliding block to move left and right. The sliding block moves left and right to drive the linkage rod to move up and down. The mechanical emergency starting device of the contactor is stable and reliable in structure, higher in opening and closing speed, higher in applicability and convenient to link.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to a mechanical emergency starting device for a contactor. Background technique [0002] At present, the existing mechanical emergency starting devices for contactors generally include a base plate, a bracket arranged on the base plate, and an opening and closing mechanism. The opening and closing linkage mechanism of the closing mechanism, the reset structure of the linkage mechanism adopts a torsion spring, so that the opening and closing speed of the opening and closing mechanism is not fast enough. This structure can only be applied to contactors that do not require much force. Poor, and the torsion spring requires a large installation space, which cannot be realized in a small space. In addition, when multiple contactor mechanical emergency starting devices need to be opened and closed at the same time, the handles can only be turned one by one, which is inconve...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing mechanical emergency starting devices for contactors generally include a base plate, a bracket on the base plate, and an opening and closing mechanism. The closing mechanism is located under the partition, and there is a linkage mechanism that drives the opening and closing mechanism to open or close on the partition. The reset structure of the linkage mechanism adopts a torsion spring, so that the opening and closing speed of the opening and closing mechanism is not fast enough. It can be applied to contactors that do not require much force, but the applicability is poor, and the torsion spring requires a large installation space, which cannot be realized in a small space. In addition, when multiple contactor mechanical emergency start devices need to be opened and closed at the same time , you can only turn the handles one by one, which is inconvenient to operate

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