一种柔性风管及风管系统
By attaching a hot melt adhesive film to the zipper of the flexible duct and heating and pressurizing it to form a sealing layer, the problem of air leakage caused by zipper connection is solved, achieving a highly efficient sealing effect and a long-life sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOXDUCT (WUHAN) AIR DISPERSION SYST CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-17
AI Technical Summary
In existing flexible duct systems, zipper connections cause air leakage, tape application has insufficient durability, and surface adhesive coating is difficult to ensure uniformity, resulting in high system energy consumption.
Hot melt adhesive film is applied to the axial and circumferential zipper. The hot melt adhesive film is activated or melted by heating and pressurizing equipment to form a stable sealing layer and seal the gaps at the joint.
It improves the airtightness of flexible ducts, is easy to operate, has a long sealing life, good durability, and high construction consistency.
Smart Images
Figure CN224516166U_ABST
Abstract
Claims
1. A flexible duct, characterized by, include: Flexible duct body (300); The first axial zipper (2011) is fixedly installed on one side of the flexible duct body (300); The second axial zipper (2012) is fixedly installed on the side of the flexible duct body (300) opposite to the first axial zipper (2011); The first axial zipper (2011) and the second axial zipper (2012) are pulled together to form an axially zippered zipper (201). A hot melt adhesive film (100) is attached to the axially zipper (201) to seal the gap at the joint.
2. The flexible duct according to claim 1, characterized in that: When the first axial zipper (2011) and the second axial zipper (2012) are sewn to the flexible duct body (300), they form an axial connection hole (501). The hot melt adhesive film (100) is also attached to the axial connection hole (501) to seal the axial connection hole (501).
3. A flexible duct according to claim 2, wherein, Also includes: The first circumferential zipper (2021) is fixedly installed on the flexible duct body (300) on the side adjacent to the first axial zipper (2011) and the second axial zipper (2012); The second circumferential zipper (2022) is fixedly installed on the flexible duct body (300) on the side opposite to the first circumferential zipper (2021).
4. A flexible duct according to claim 3, wherein, Also includes: When the first circumferential zipper (2021) and the second circumferential zipper (2022) are sewn to the flexible duct body (300), a circumferential connection hole (502) is formed. The hot melt adhesive film (100) is also attached to the circumferential connection hole (502) to seal the circumferential connection hole (502).
5. A flexible duct according to claim 3, wherein Also includes: Multiple flexible duct bodies (300) are connected by a first circumferential zipper (2021) on one flexible duct body (300) and a second circumferential zipper (2022) on another flexible duct body (300) to form a circumferential zipper (202). Multiple flexible duct bodies (300) are spliced together to form a flexible duct. The hot melt adhesive film (100) is also attached to the circumferential zipper (202) to seal the gap at the joint.
6. A flexible duct according to claim 1, wherein ； The hot melt adhesive film (100) is made of PU material.
7. A flexible duct according to claim 6, wherein ； The thickness of the hot melt adhesive film (100) is 0.1 mm to 0.3 mm.
8. A flexible duct according to claim 1, characterized in that: When the first axial zipper (2011) and the second axial zipper (2012) are closed, the flexible duct body (300) takes the shape of a hollow tube.
9. A flexible duct according to claim 1, characterized in that: The flexible duct body (300) is made of an airtight flexible material.
10. A duct system, characterized in that, Including the flexible duct described in claim 1.