Patent ID: 7222621

Claim:
A breathing tube fastening structure comprising: a fastener having a fastener body; a buckle; a pipe hoop, the fastener being pivotally mounted on the pipe hoop to be movable between a locked and an unlocked position, a breathing tube being received in the pipe hoop and the fastener body being engageable with and disengagable with notches formed on an exterior of the breathing tube, in the locked position the fastener body preventing movement of the pipe hoop relative to the breathing tube and in the unlocked position, the fastener body permitting sliding of the pipe hoop on the breathing tube, the pipe hoop having a protruding grip portion; a snatch-hook; and a snatch-hook stand, the snatch-hook being pivotally connected to the snatch-hook stand to be movable between an open and a closed position, an opening being formed between the snatch-hook stand and the snatch-hook when the snatch-hook is in a closed position, the opening receiving a head strap for a breathing tube, the snatch-hook being readily movable between the open position and closed position for connection and removal of the head strap, the snatch-hook stand further having an opening for receiving the grip portion of the pipe hoop whereby the snatch-hook and snatch-hook stand are rotatable relative to the pipe hoop.