Vertically-pivoted folded movable bridge and using method

Abstract

The invention belongs to the technical field of the bridge, and particular relates to a vertically-pivoted folded movable bridge. The vertically-pivoted folded movable bridge comprises a left bridge abutment (1), a left support base (2), a left half-bridge bay (3), a right half-bridge bay (4), a folding mechanism (5), a right support base (6), a right bridge abutment (7), a bridge tower (8), a locking device (9), a tower top pulley (10), a winch (11), a steel wire rope (12), a hydraulic system and an electrical system. The vertically-pivoted folded movable bridge is capable of using the winch to coil and release the steel wire rope so as to open and close the bridge, providing the larger arm of force, and greatly reducing the energy consumption in the using process. under the state of opening the bridge, the bridge bay is the vertical state and is positioned above the left bridge abutment, and locked with the bridge tower, the potential safety hazard cannot be generated to a ship passing through the river. The foldable bridge bay is used for reducing the height of the bridge tower and the height of the opened bridge. The simplification, the safety and the reliability of the movable bridge are improved comprehensively.

Description

technical field [0001] The invention belongs to the technical field of bridges, in particular to an open bridge. Background technique [0002] At present, the opening methods of the opening bridge include a horizontal rotation opening type, a vertical lifting type, a vertical rotation opening type, and the like. The horizontal turning type opening bridge generally adopts the floating and horizontal turning method. This type of opening bridge is affected by the water level, and the elevation of the bridge deck will change, which will have a certain impact on traffic. The vertical lifting open bridge needs to build lifting devices on the abutments on both sides of the bridge, and generally limits the height of navigation, and has poor adaptability to water level changes. The main body of the vertical-rotation open bridge rotates in the air around a fixed axis, and the hydraulic cylinder is used to shrink or extend to drive the bridge to open and close. The general problems o...

AI Technical Summary

Problems solved by technology

The horizontal rotation type opening bridge generally adopts the floating horizontal rotation method. This type of opening bridge is affected by the water level, and the elevation of the bridge deck will change, which will have a certain impact on traffic.

The vertical lifting open bridge needs to build lifting devices on the abutments on both sides of the bridge, and generally limits the height of navigation, and has poor adaptability to water level changes

The main body of the vertical-rotation open bridge rotates in the air around a fixed axis, and the hydraulic cylinder is used to shrink or extend to drive the bridge to open and close. The general problems of open bridges are as follows: first, the reliability of the hydraulic cylinder is very high; second, the rear end of the bridge main body needs a counterweight, and the overall structure volume is relatively large; third, the force provided by the hydraulic cylinder under the main bridge The arm is small, so a large power hydraulic cylinder is required, and the energy consumption is large; moreover, there are common problems in the existing vertical lifting type and vertical opening type open bridge: when the bridge is open, the ship needs to be under the open bridge. Pass, there is a certain security risk

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