Trapezoidal ventilation double -walled hose

• Main Author: ZHOU JINGXIA
• Format: Patent
• Language: Chinese; English
• Published: 20.04.2018
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to a trapezoidal ventilation double -walled hose. The problem of general ventilation pipe installation inconvenient, the ventilation windage is big, the dust adsorbs easily,the bacterium breeies easily is solved. The whole trapezium structure that be of ventilation pipe, ventilation pipe be including outer wall and inner wall, and it is continuous that outer wall and inner wall pass through the high temperature bonding, the outer wall is concavo -convex ripple struction, can be crooked wantonly, effectively reduce the use of elbow, the utility model discloses a flowof wind is effectively guaranteed in structure and reasonable size design, guarantees that remote air supply is not influenced. The appearance adopts the trapezium structure, guarantees the ventilation amount of wind and ventilation effect when the trapezium structure effectively strengthens the compressive resistance with being used as when blowing, and the laddertron takies ground lifting spaceas far as possible less whe