Human error prevention device during gas cylinder replacement

摘要

Problem to be solved: to provide an apparatus for preventing a human error which can occur at a gas cylinder replacement in a gas supply system.A cover plate 2 capable of covering the mouthpiece 15A of the gas cylinder 15 andSupporting the cover plateThe covering plate covers the mouthpieceA first position preventing access to the mouthpiece portion by the worker andThe cover exposes the mouthpieceAn air cylinder 3 which can be moved between a second position allowing access to a mouthpiece by a worker and a second positionAir cylinder driveAir cylinder supportA fixing portion 5 is detachably attached to the gas cylinder.The air cylinder driving section is connected to the control section of the gas supply system, and always takes the first position on the cover plate, but when the gas cylinder exchange permission signal is received from the control section, the cover plate is placed at the second position.Diagram