Air supply pipe

The utility model provides an air supply pipe which comprises a main pipe body, and the outer wall of the main pipe body is wrapped with a rock wool layer and a sound insulation felt layer. The outer side of the sound insulation felt layer is sleeved with a dismounting clamping seat structure; a steel belt is inserted in the dismounting clamping seat structure, and the steel belt dismounting clamping seat is characterized in that the dismounting clamping seat structure comprises a clamping seat, and a movable cavity and an insertion hole are formed in the clamping seat; the left side and the right side of the upper portion in the clamping base are in threaded connection with fixing bolts. Due to the arrangement of the rock wool layer and the sound insulation felt layer, noise reduction and heat preservation are achieved during air supply. 本实用新型提供一种送风管，包括主管体，主管体外壁上均包裹有岩棉层以及隔音毡层；隔音毡层外侧套接有拆装卡座结构；拆装卡座结构内穿插有钢带，其特征在于，所述的拆装卡座结构包括夹紧座，夹紧座内部均开设有活动腔以及穿插孔；夹紧座内部上方的左右两侧均螺纹连接有固定螺栓。本实用新型岩棉层和隔音毡层的设置，实现送风时进行降噪保温。