Interlocking mechanism for door closing operation of switch cabinet

Abstract

The invention discloses an interlocking mechanism for door closing operation of a switch cabinet. The interlocking mechanism comprises a middle door cabinet body and a handcart platform, wherein a middle door lock is arranged on the middle door cabinet body and connected with a middle door interlocking support piece by a door lock connecting rod; a lead screw unlocking plate is arranged at the lower end of the middle door interlocking support piece; a fixing frame is arranged below the lead screw unlocking plate; a limiting rod is mounted on the fixing frame in a penetrating manner; the top end of the limiting rod is over against a limiting hole of a lead screw nut; a lower shifting block is arranged below the lead screw unlocking plate and connected with an upper shifting block; a shifting lever of the upper shifting block is positioned in a dead slot of the lead screw unlocking plate; a spring limiting pin is arranged on the limiting rod; and a spring is mounted on the limiting rod. With the adoption of the structure, when a switch cabinet handcart is pushed into the cabinet, a middle door is required to be closed, and then the handcart can be rocked from a testing position to a working position. The mechanism is simple in structure and good in reliability, eliminates potential safety hazards and ensures personal safety of an operator.

Description

technical field [0001] The invention relates to an interlocking mechanism used for door closing operation in a medium-voltage complete set of equipment, in particular to an interlocking mechanism for door closing operation of a switch cabinet. Background technique [0002] As we all know, when the door of the switch cabinet in the medium-voltage complete set of equipment is not closed, the handcart can also be shaken to the working position, which will easily cause irregular and unsafe on-site operations. In order to ensure the personal safety of the operators, the switch The interlocking mechanism for closing the door is set on the cabinet, but the existing interlocking mechanism for closing the door, due to the unreasonable structure setting, makes the overall size larger, the structure is complicated, and the reliability is poor, so there is still a relatively large safety hazard, which greatly endanger the personal safety of the operator. Contents of the invention [...

AI Technical Summary

Problems solved by technology

[0002] As we all know, when the door of the switch cabinet in the medium-voltage complete set of equipment is not closed, the handcart can also be shaken to the working position, which will easily cause irregular and unsafe on-site operations. In order to ensure the personal safety of the operators, the switch The interlocking mechanism for closing the door is set on the cabinet, but the existing interlocking mechanism for closing the door, due to the unreasonable structure setting, makes the overall size larger, the structure is complicated, and the reliability is poor, so there is still a relatively large safety hazard, which greatly Hazard to the personal safety of the operator

Images