Parallel telescopic bridge

Abstract

The invention discloses a parallel telescopic bridge. The parallel telescopic bridge comprises a bridge main body fixing part and a parallel telescopic part. The bridge main body fixing part is weldedby a steel structure, a vertical column, base and cross beam cable-stayed fixing mode is adopted, the vertical column is provided with a hydraulic cylinder for driving up-and-down stretching, and thebase is integrally connected with a ground foundation; and the parallel telescopic part adopts a connecting rod structure, the connecting rod structure is provided with a foldable bridge deck, a lower end of the connecting rod structure is connected with a bridge stand column, and the upper end of the connecting rod structure is connected with the upper end of the hydraulic cylinder. A working principle comprises that the hydraulic cylinder is driven to unfold so that the hydraulic cylinder pushes the upper end of the connecting rod structure to shrink the connecting rod structure and shrinkthe folding bridge plate to shrink the telescopic part of the bridge; and the hydraulic cylinder is driven to retract, the hydraulic cylinder drives the upper end of the connecting rod structure to unfold the connecting rod structure, and meanwhile the folding bridge plate is unfolded to unfold the telescopic part of the bridge. In the using process, the hydraulic cylinder is driven to be unfolded, the parallel telescopic bridge is in a contracted state, and water surface ships and the like are not affected to travel back and forth; and when the hydraulic cylinder is driven to retract, the parallel telescopic bridge is in an unfolded state for pedestrians and vehicles to pass through a bridge surface.

Description

Technical field: [0001] The invention relates to a small bridge structure, in particular to a parallel expandable bridge, which belongs to the field of bridge construction. Background technique: [0002] At present, there are some lakes, rivers, etc., which not only need to ensure the passage of ships on the water surface, but also take into account the passage of pedestrians and vehicles, so some openable bridges have been produced. For example, there are many openable iron bridges in Tianjin. However, it is more expensive to build such iron bridges on small rivers or waters where people flow less and need to pass temporarily. Invention content: [0003] The technical solution adopted by the present invention is to provide a parallel stretchable bridge. The parallel telescopic bridge includes: a fixed part of the main body of the bridge and a parallel telescopic part. The fixed part of the main body of the bridge is welded by a steel structure. Cylinder, the base is con...

AI Technical Summary

Problems solved by technology

However, it is more expensive to build such an iron bridge on a small river or water surface where there is less movement of people and needs to pass temporarily.

Images