Pressure release structure of switch cabinet

The utility model relates to a pressure release structure of a switch cabinet. The structure includes a pressure release cover on which a plurality of installation beams are arranged. Sleeve members which match the installation beams are arranged on the installation beams. A pressure release channel is arranged at the lower ends of the installation beams on the pressure release cover. Beneficial effects of the structure are that the structure is reasonable in design; the pressure release channel is arranged on the pressure release cover and at the same time, needs for installation of the sleeve membaers and passing through of copper bars are met so that potential safety hazards are eliminated; and an upward pressure release method is adopted so that a problem of hurt by arc spray, which is likely to be caused by horizontal pressure release is prevented and internal arc energy is effectively released through the pressure release channel and heavy casualties and economical loss are prevented.