二次筛网过滤组件以及市政路面雨水排水口施工结构
By installing a secondary screen filter assembly on the rainwater drainage outlets of municipal roads, and utilizing L-shaped angle steel and a hand-held steel bar structure, the problem of easy clogging of traditional rainwater grates is solved, achieving efficient filtration and reduced maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional rainwater grates are prone to clogging during heavy rainfall. The large gaps in the coarse mesh allow debris to enter the pipe network. They lack multi-stage filtration mechanisms and initial rainwater interception functions, requiring frequent cleaning operations and posing safety hazards.
The secondary screen filtration assembly, consisting of a rectangular opening and a filter bag, is formed by welding L-shaped angle steel, combined with a handle steel bar and baffles. The filter mesh has a mesh size of 100-200 and a depth of 30-50cm. It is installed on the rainwater drainage outlet of municipal roads to enhance the filtration effect.
Reduce the amount of debris entering the rainwater pipes, lower the risk of pipe blockage, reduce maintenance costs, improve filtration efficiency, reduce cleaning frequency, and reduce safety hazards.
Smart Images

Figure CN224514378U_ABST