Mining safe lock mechanism and explosive-proof switch cabinet

Abstract

The invention provides a mining safe lock mechanism and an explosive-proof switch cabinet. The mining safe lock mechanism is used for the explosive-proof switch cabinet and comprises disconnecting switch control electricity buttons, disconnecting switch rotating discs and disconnecting switch handles, wherein the disconnecting switch control electricity buttons are arranged on a box and used for connection and disconnection of control electricity of disconnecting switches, the disconnecting switch rotating discs are arranged on the inner side of the box and provided with limiting blocks matched with the disconnecting switch control electricity buttons, and the disconnecting switch handles are arranged on the outer side of the box, connected with the disconnecting switch rotating discs and used for driving the disconnecting switch rotating discs to rotate. When the disconnecting switch control electricity buttons are pressed down and the disconnecting switch rotating discs are rotated, the disconnecting switch control electricity buttons are separated from the limiting blocks to disconnect the dynamic electricity of the explosive-proof switch cabinet. By means of the mining safe lock mechanism, the disconnecting switch rotating discs can be rotated to cut off the dynamic electricity of the explosive-proof switch cabinet only after the disconnecting switch control electricity buttons are pressed down to cut off the control electricity of the disconnecting switches, and damage, caused by on-load electricity disconnection of the disconnecting switches, to electrical parts of the disconnecting switches is avoided.

Description

technical field [0001] The invention relates to the technical field of a mine safety lock mechanism, in particular to a mine safety lock mechanism and a flameproof switch cabinet having the mine safety lock mechanism. Background technique [0002] The working environment of the power equipment in the mine is harsh. In order to prevent the gas explosion caused by the sparks generated when the equipment is working, various standards of the explosion-proof switchgear require that when the explosion-proof switchgear is equipped with an isolation switch, the isolation switch and the explosion-proof switch The interlocking mechanism between the doors of the cabinet should ensure that the door can only be opened when the contacts of the isolating switch are completely cut off. This is an important means for the explosion-proof performance of the explosion-proof switchgear and the personal safety of the on-site production safety level operators. The interlock mechanism in the exist...

AI Technical Summary

Problems solved by technology

The interlock mechanism in the existing explosion-proof switchgear can meet the interlock function of opening the door when the power is turned off and closing the door and turning on the power. , and did not cut off the control power of the isolating switch. At this time, the isolating switch is still working on load under the action of the control power. Suddenly powering off the power power of the flameproof switch cabinet will easily make the power in the isolating switch Electrical components are damaged, reducing the service life of the disconnector

Images