A pavement coring wastewater drainage device
By designing a highly adaptable wastewater drainage device for road coring, the problem of road surface pollution caused by core drilling wastewater under complex terrain was solved, achieving effective wastewater collection and drainage, and improving construction efficiency and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG COMM CONSTR GRP CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
Smart Images

Figure CN224514354U_ABST
Abstract
Claims
1. A pavement coring wastewater drainage device, comprising a base (1) and a wastewater collector (2) arranged on the base (1), characterized in that, The base (1) is provided with an axial through hole; the wastewater collector (2) is a hollow cylindrical structure with its inner cavity forming a drill bit working cavity. The axial through hole and the drill bit working cavity are coaxially connected to form a drainage channel; the side wall of the wastewater collector (2) is provided with a drainage interface (3) that communicates with the drill bit working cavity. The drainage interface (3) is externally connected to an expandable flow guiding device (4). The flow guiding device (4) is composed of multiple flexible pipe sections (41) with joints connected in series. The first flexible pipe section (41) is detachably connected to the drainage interface (3), and the last flexible pipe section (41) is connected to the drainage ditch or wastewater recycling equipment on the side of the road.
2. The pavement coring wastewater drain of claim 1, wherein: The flexible pipe section (41) includes an inlet connector (411), a flexible guide pipe (412), and an outlet connector (413) connected in sequence. The inlet connector (411) can be selectively connected to the drain port (3) of the wastewater collector (2) or the outlet connector (413) of the adjacent guide device (4) via a quick connection mechanism (5).
3. The pavement coring wastewater drain of claim 2, wherein: The quick connection mechanism (5) is a threaded sealing connection structure, including an external thread (51) set on the outer wall of the drain interface (3) and the outer wall of the water outlet connector (413), and an internal thread (52) set on the inner wall of the water inlet connector (411) and matched with the external thread (51).
4. The pavement coring wastewater drain of claim 1, wherein: The base (1) is a circular structure, the wastewater collector (2) is a cylindrical component, the upper surface of the base (1) is fixedly connected to the wastewater collector (2), and the lower surface of the base (1) is sealed to the road surface by a sealing material.
5. The pavement coring wastewater drainage apparatus of claim 1, wherein, The wastewater collector (2) has a double-cylinder nested structure, including: The outer cylinder (21) has a radial drainage port (3) on its side wall. The inner cylinder (22) has filter holes on its side wall; and An annular buffer cavity (23) is formed between the inner cylinder (22) and the outer cylinder (21), and is connected to the inner cavity of the inner cylinder (22) and the drainage interface (3).
6. The road surface core sampling wastewater drainage device according to claim 5, characterized in that: The inner cylinder (22) is a cylindrical filter structure.
7. The coring wastewater drain of claim 5, wherein: The lower part of the inner cylinder (22) is provided with several filter holes, and the top edge of the inner cylinder (22) is lower than the top edge of the outer cylinder to form an overflow structure.
8. The pavement coring wastewater drain of claim 1, wherein: The drainage interface (3) is a straight pipe horizontally set on the side wall of the wastewater collector (2), and its end away from the wastewater collector (2) is provided with an external thread (51).
9. The coring wastewater drain of claim 2, wherein: The flexible guide pipe (412) is a canvas pipe section, and the two ends of the canvas pipe section are seamlessly connected to the inlet pipe and the outlet pipe, respectively.
10. The pavement coring wastewater drainage apparatus of claim 5, wherein: A filter screen (24) is connected between the top edge of the inner cylinder (22) and the top edge of the outer cylinder (21).