Anti-interlocking device and power distribution cabinet

Abstract

The invention provides an anti-interlocking device and a power distribution cabinet. The anti-interlocking device comprises a support frame, a driving mechanism, a knife switch connection frame and a grounding mechanism. A rotating shaft in the driving mechanism is installed on the support frame, and the end portion thereof is fixedly sleeved by a gear. The two ends of a linear guide rail are respectively and rotatably equipped with a support rod, wherein the support rod runs through the support frame and forms a moving pair with the support frame. Springs are arranged between the linear guide rail and the support frame. A toothed bar is movably arranged on the linear guide rail. The toothed bar and the gear are engaged. The knife switch connection frame is arranged on the end portion of the toothed bar. The grounding mechanism is arranged at the bottom portion of the support frame and is in drive connection with the toothed bar. The toothed bar in the driving mechanism drives the knife switch connection frame and the grounding mechanism to realize knife switch disconnection and grounding; and when a semicircular baffle piece on the support rod is detached from a semicircular mounting hole, the linear guide rail moves back, and then, the toothed bar breaks away from the gear, so that connection of power input components is open, and the case of misoperation is prevented.

Description

technical field [0001] The invention relates to the technical field of power distribution cabinet components, in particular to an anti-interlock device and a power distribution cabinet. Background technique [0002] The interlocking mechanism of the power distribution cabinet door is a device installed on high-voltage power distribution switch cabinets and other equipment to interlock with the grounding switch and the opening / closing of the power distribution cabinet door. Dangerous, in the absence of power failure and grounding, operators and maintenance personnel cannot open the cabinet door of the power distribution cabinet for maintenance and inspection work. The door interlocking mechanism of the power distribution cabinet is a mechanism that interlocks with the accessories on the door of the power distribution cabinet through the opening and closing operation of the grounding switch in the power distribution cabinet to ensure the safety of operators and maintenance per...

AI Technical Summary

Problems solved by technology

[0003] The publication number is CN106158455B, which provides a high-voltage switch cabinet anti-interlock device applied in the technical field of high-voltage switch cabinet components. When the rear door panel is not closed, the curved plate and the stop rod of the anti-interlock device body are under the elastic force of the spring. It protrudes toward the defense line close to the rear door panel, and the part of the bent plate and the retaining rod protrudes from the side plate more, so that when the rear door panel is not closed, the retaining rod can effectively prevent the rotation of the interlocking piece, and the linkage piece cannot rotate, that is, it is grounded The large shaft of the switch cannot be rotated, so that the grounding switch cannot be operated to avoid misoperation, and this device cannot be used in some cases where the cabinet door needs to be opened and the circuit is still connected

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