Folding telescopic bridge

Abstract

The invention discloses a folding telescopic bridge. The folding telescopic bridge comprises a bridge main body fixing part and a folding telescopic part. The bridge main body fixing part is formed bywelding a steel structure and adopts a fixing mode of obliquely pulling a stand column, a base and a cross beam, the stand column is provided with a hydraulic cylinder used for driving the stand column to stretch up and down, the hydraulic cylinder adopts a semi-underground installation mode, and the base is connected with a concrete foundation into a whole body; and the folding telescopic part adopts a connecting rod structure, a folding bridge plate is installed on the connecting rod structure, 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, and the hydraulic cylinder pushes the upper end of the connecting rod structure to shrink the connecting rod structure, and drives a folding bridge plate to fold and shrink a 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 achieve expansion of bridge folding and stretching. In a using process, the hydraulic cylinder is driven to be unfolded, the folding telescopic bridge is in a contracted state, and water surface ships and the like are notinfluenced to travel back and forth; and when the hydraulic cylinder is driven to retract, the folding 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 foldable and telescopic bridge, belonging to the field of bridge construction. Background technique: [0002] At present, there are some lakes, rivers, etc., both to ensure the traffic of boats on the surface, but also to take into account the passage of pedestrians and vehicles. This has produced some openable bridges. For example, Tianjin has many openable iron bridges. However, it is more expensive to build such iron bridges on small rivers or water surfaces where there is little flow of people and need to pass temporarily. Summary of the invention: [0003] The technical scheme adopted by the present invention is to provide a foldable and telescopic bridge. The foldable telescopic bridge includes: a fixed part of the bridge body and a foldable telescopic part. The fixed part of the bridge body is welded by a steel structure and adopts a fixed method of a column, a base and a crossbea...

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.

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