一种桥涵与路基衔接段的排水结构
By using a drive wheel to drive the mixing rod to generate centrifugal force, combined with the design of baffles and turbulence holes, the problem of impurities adhering and clogging in the drainage structure of the connection section between the bridge and the roadbed is solved, thus achieving smooth drainage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA ZHONGDA HIGHWAY CONSTR CO LTD
- Filing Date
- 2025-08-30
- Publication Date
- 2026-07-17
AI Technical Summary
The existing drainage structure at the junction of bridges and culverts with the roadbed is prone to impurities adhering due to insufficient water flow energy, which can cause blockage of the culvert and affect drainage smoothness.
The system uses a drive wheel to rotate the stirring rod, which uses centrifugal force to create a vortex in the water collection tank. Impurities are then removed by the impact of the baffle. The combination of the arc-shaped structure and the design of the turbulence holes enhances the degree of water flow disturbance, ensuring that impurities are discharged with the water flow.
Effectively clean impurities from the inner wall of the water collection tank to prevent blockage and ensure smooth drainage of the connection between the bridge/culvert and the roadbed.
Smart Images
Figure CN224514084U_ABST
Abstract
Claims
1. A drainage structure for a bridge approach, characterized by: include: The main body of the bridge and culvert is connected to the main body of the roadbed at one end, and a water collection tank is installed inside the connection section between the main body of the bridge and culvert and the main body of the roadbed, and an inlet pipe is connected to the outside of the water collection tank; A drive wheel is rotatably disposed inside the water collection tank, and the impeller of the drive wheel is located on the water flow path of the water inlet pipe. A stirring rod is provided at the drive end of the drive wheel, and the bottom end of the stirring rod is always in contact with the bottom inner wall of the water collection tank. Baffles are arranged in an array on the inner wall of the water collection tank; As water flows in, the drive wheel rotates, the drive stirring rod rotates, and the centrifugal force generated by the rotation of the stirring rod causes the water inside the water collection tank to rotate. The water inside the tank impacts the surface of the baffle along the rotation path.
2. The drainage structure of a bridge or culvert and subgrade transition section according to claim 1, characterized in that: The baffle is inclined, and the direction of the baffle's inclination is opposite to the rotation path of the stirring rod.
3. The drainage structure of a bridge or culvert and subgrade transition section according to claim 2, characterized in that: The baffle has an arc-shaped structure with its concave surface facing the direction of rotation of the stirring rod.
4. The drainage structure of a bridge or culvert and subgrade transition section according to claim 3, characterized in that: The surface of the baffle is provided with a number of turbulence holes, the axis of the turbulence holes is at an angle of 45-60° with the surface of the baffle, and the turbulence holes on adjacent baffles are staggered.
5. The drainage structure of a bridge or culvert and subgrade transition section according to claim 4, characterized in that: The stirring plate of the stirring rod is V-shaped, and the V-shaped groove is aligned with the rotation direction of the stirring rod.