A safe interlocking device for power distribution cabinet

Abstract

The invention discloses a safety type power distribution cabinet interlocking device. The safety type power distribution cabinet interlocking device comprises a cabinet body; a shell body comprises aswitch gate mechanism, a driving device and an unlocking mechanism; the switch gate mechanism comprises a second control block and a first bevel gear; the second control block is fixedly connected with a fourth inclined block; the first bevel gear is in meshed connection with a second bevel gear; the second bevel gear rotationally controls a grounding switch shaft; the driving device comprises a motor and a door shaft; a rotating shaft is driven by the motor; a second belt wheel is arranged on the rotating shaft; a first belt wheel is arranged on the door shaft; the first belt wheel is connected with the second belt wheel through a belt; a rotating disc is further arranged on the rotating shaft; and a through hole is formed in the rotating disc. The safety type power distribution cabinet interlocking device is stable and reliable; working personnel cannot open a cabinet door in a closing state of a grounding switch; a simple unlocking device is also provided; and when the working personnel have special requirements, the door can be opened in the closing state of the grounding switch.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a safe interlocking device for a power distribution cabinet. Background technique [0002] A mechanical distribution cabinet is a box in which electrical appliances and their wiring are placed to distribute electrical energy. The power distribution cabinet includes high-voltage switch cabinets for on-off, control or protection in power system transmission, distribution, power conversion and consumption, as well as arc suppression and harmonic elimination and over-voltage suppression cabinets for over-voltage protection. At present, the high-voltage switchgear / arc suppression and overvoltage suppression cabinet produced on the market includes a lower door, a middle door and an instrument door from bottom to top. After the middle door is opened, there is an operating room in the cabinet, and an isolating switch is arranged in the operating room. Operating the handle, pulling th...

AI Technical Summary

Problems solved by technology

However, in actual operation, the operator may still forget to turn off the electromagnetic switch of the primary room, so there is a potential safety hazard in the operation of opening the middle door.

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