Rainwater disconnecting cyclone buffer

By using the swirling chamber and duckbill outlet design of the rainwater disconnection swirling buffer, combined with the heightening component and grid overflow outlet, the problems of water accumulation and pollutant blockage in the roof riser rainwater drainage system are solved, achieving efficient purification and stable discharge, reducing costs and enhancing system reliability.

CN224514590UActive Publication Date: 2026-07-17
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-07-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing roof downpipe rainwater drainage systems are prone to localized water accumulation due to unreasonable slopes or obstructions, and pollutants can clog downstream facilities, affecting drainage efficiency and safety.

Method used

Design a rainwater disconnection vortex buffer, comprising a vortex chamber, a duckbill outlet, a heightening component, and a mesh overflow outlet. It utilizes the principle of hydraulic spin for preliminary purification and graded overflow, and combines a water storage chamber to delay peak flow, thereby achieving efficient sedimentation and discharge of rainwater.

Benefits of technology

It significantly reduces operating costs, improves drainage efficiency and water quality, prevents water accumulation and backflow, ensures building safety, and enhances system reliability.

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Abstract

The utility model discloses a rainwater cut-off cyclone buffer, including from below and upwards in proper order connection and lead through's water inlet component, high piece and water outlet component, one side of water inlet component is connected with the water inlet pipe, be connected with rainwater vertical pipe on the water inlet pipe, rainwater vertical pipe includes the outer rainwater pipe of vertical setting along building outer wall and the elbow pipe of connecting in the lower extreme of outer rainwater pipe, the other end of elbow pipe is connected the side end of water inlet component, water inlet component has cyclone cavity, be equipped with several vertical distribution's energy dissipator in cyclone cavity and opposite water inlet pipe input end one side, the water outlet component is filled with filter filler, and the side end of water outlet component is connected with the duckbill water outlet for the flow limiting, the utility model discloses, has the characteristics such as peak control and high -efficient sewage interception.
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Claims

1. A stormwater disconnection cyclonic buffer, characterised by: It includes a water inlet assembly (10), a heightening component (20) and a water outlet assembly (30) connected and connected from bottom to top. A water inlet pipe (12) is connected to one side of the water inlet assembly (10), and a rainwater riser pipe (40) is connected to the water inlet pipe (12). The water inlet assembly (10) has a swirling cavity (11), and several vertically distributed stress relief sills (13) are provided in the swirling cavity (11) on the side facing the input end of the water inlet pipe (12). The water outlet assembly (30) is filled with filter media (31), and a duckbill outlet (32) for flow restriction is connected to the side end of the water outlet assembly (30).

2. A rain disconnection cyclone buffer according to claim 1, characterised in that: The lower end of the water outlet component (30) is provided with a grid-shaped overflow port (33).

3. A rain disconnection cyclone buffer according to claim 1, wherein: The rainwater downpipe (40) includes an external rainwater pipe (41) vertically arranged along the exterior wall of the building and an elbow pipe (42) connected to the lower end of the external rainwater pipe (41). The other end of the elbow pipe (42) is connected to the side end of the water inlet assembly (10).

4. A rain disconnection cyclone buffer according to claim 3, characterised in that: The bending angle of the elbow (42) is 90°.

5. A rain disconnection cyclone buffer according to claim 1, wherein: The water inlet assembly (10) has a drain outlet (14) at the lower end of the side away from the rainwater downpipe (40), and the drain outlet (14) is covered with a permeable geotextile (141) for filtering rainwater remaining inside the buffer.

6. A rainwater disconnection cyclone buffer according to claim 1, wherein: A base plate (50) is pre-embedded underground. The water inlet component (10) and the heightening component (20) are both buried underground. The lower end of the water inlet component (10) is mounted on the base plate (50), and the water outlet component (30) extends to the ground.

7. A rainwater disconnection vortex buffer according to claim 3, wherein: The external rainwater pipe (41) is fixed to the exterior wall of the building by clamps (43).

8. A rainwater disconnection vortex buffer according to claim 1, characterized in that: The heightening component (20) has a water storage cavity (21) for temporarily storing rainwater and delaying peak flow.