Ventilating duct


  • Inventors: ZHANG JIE
  • Assignees: 杰 张
  • Publication Date: March 31, 2010
  • Publication Number: CN-201434472-Y


The utility model relates to a ventilating duct, which comprises an upper flange disk, a connecting spiral pin, a ventilating duct, an air outlet, a lower flange disk and a connecting part, wherein the upper flange disk and the lower flange disk are installed on the ventilating duct, and a plurality of air outlets are arranged on the ventilating duct. The product has simple structure and reasonable design, the air outlet of the ventilating duct is a right angle, the strength of the tube wall is high, the raw materials can be saved, the ventilating duct is not easily blocked, and the ventilating effect is good, therefore the utility model is especially applicable to grain depots or coal mines.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)


Cited By (0)

    Publication numberPublication dateAssigneeTitle