Drainage device for building bridge

Abstract

The invention discloses a drainage device for a building bridge. The drainage device comprises a drainage pipe, an elbow and a drain pipe. The drainage pipe and the drain pipe are correspondingly inserted into pipe openings in the two ends of the elbow. A plurality of diversion pipes are arranged on the side wall, far away from the drain pipe, of the drainage pipe at equal intervals. A water inletand air entrainment prevention device is arranged at the end, far away from the drainage pipe, of each diversion pipe. Each water inlet and air entrainment prevention device comprises a hollow base plate and a top cover. According to the drainage device for the building bridge, during rainstorm weather, the drainage pipe can enter the siphon type drainage state, accumulated water on the bridge deck can be quickly drained, the pressure bearing load of the bridge is reduced, the impact force of water flow when the drainage pipe is full of water is utilized, and an impeller drives a sediment cleaning device to scrape and clean sediments in the drainage pipe.

Description

technical field [0001] The invention relates to the technical field of bridge drainage, in particular to a drainage device for building bridges. Background technique [0002] In order to quickly remove the water on the bridge and prevent the rainwater from accumulating on the bridge deck and seeping into the girder body to affect the durability of the bridge, when building and designing bridges, in addition to setting vertical and horizontal slope drainage on the bridge deck, it is also necessary to set up drainage in the bridge. Drainage device in order to form a complete drainage system. [0003] Existing drainage devices for building bridges are generally drainage pipes composed of multiple drainage pipes. When the water flow is small at ordinary times, sediments such as dirt and sand are easy to accumulate in the drainage pipes. The obstruction effect of the drainage pipe will limit the drainage capacity, so that a large area of ​​water will appear on the bridge deck, w...

AI Technical Summary

Problems solved by technology

[0003] Existing drainage devices for building bridges are generally drainage pipes composed of multiple drainage pipes. When the water flow is small at ordinary times, sediments such as dirt and sand are easy to accumulate in the drainage pipes. The obstruction effect of the drainage pipe will be limited, so that there will be a large area of ​​water on the bridge deck, which will increase the pressure burden of the bridge

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