一种可维护型防烟道堵塞烟雾探测器结构及烟雾探测器
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FANHAI SANJIANG ELECTRONICS CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional smoke detectors are prone to clogging in their smoke inlet channels, which reduces smoke penetration. While existing technologies can prevent clogging to some extent by adding filters, they also reduce smoke penetration and fail to meet the NFPA 72 response speed requirements.
Design a maintainable smoke detector structure to prevent smoke duct blockage. It adopts a removable dustproof sticker and a blocking component. The dustproof sticker is placed on the bottom or top surface of the smoke inlet channel to prevent foreign objects from entering. It is easy to replace through a non-marking adhesive layer. The smoke inlet channel is divided into multiple areas to keep it unobstructed.
It effectively blocks foreign objects such as lint and fibers, keeping the smoke penetration rate almost constant. The dustproof sticker can be replaced regularly or irregularly to ensure the unobstructed smoke inlet channel, meeting the NFPA 72 response speed requirements.
Smart Images
Figure CN224519385U_ABST
Abstract
Claims
1. A maintainable flue blockage preventing smoke detector structure comprising an upper case and a lower case, a smoke inlet passage being provided between the upper case and the lower case, characterized in that, One or more removable dustproof stickers are provided on the inner bottom surface and / or inner top surface of the smoke inlet channel, and one or more blocking elements to block foreign objects are provided on one side surface of the dustproof sticker.
2. The maintainable, flue gas blockage resistant smoke detector structure of claim 1, wherein, The dustproof sticker includes a base layer, one side of which is provided with an adhesive layer, and the other side of which is provided with a plurality of blocking elements.
3. The maintainable, flue gas blockage resistant smoke detector structure of claim 2, wherein, The base layer is provided with lifting strips on its side.
4. The maintainable, flue gas blockage resistant smoke detector structure of claim 2, wherein, The adhesive layer is a residue-free adhesive layer.
5. The maintainable, flue gas blockage resistant smoke detector structure of claim 1, wherein, The dustproof sticker is a flame-retardant dustproof sticker.
6. The maintainable, flue gas blockage resistant smoke detector structure of claim 1, wherein, The smoke inlet channel is provided with multiple partition strips, which divide the smoke inlet channel into multiple areas. Each area has a dustproof sticker on its inner bottom surface and / or inner top surface.
7. The maintainable, flue gas blockage resistant smoke detector structure of claim 1, wherein, The blocking component is a hook.
8. The maintainable, flue gas blockage resistant smoke detector structure of claim 1, wherein, The smoke inlet channel is surrounded by an insect-proof net.
9. The maintainable smoke detector structure for preventing smoke duct blockage according to claim 1, characterized in that, The smoke inlet channel is circular.
10. A smoke detector, characterized by The smoke detector is equipped with a maintainable smoke detector structure for preventing smoke duct blockage as described in any one of claims 1-9.