A flat-rotating open bridge

Abstract

The invention discloses a flat rotation type bascule bridge. The flat rotation type bascule bridge comprises a first bridge abutment, a main bridge, a second bridge abutment, a hydraulic system and a control system, wherein a first limit, a proximity switch and a slide way are mounted on the first bridge abutment; the main bridge is fixedly connected with spindles of a rotation mechanism through a flange plate; the rotation mechanism and a power device are mounted on the second bridge abutment adjacently; the power device drives the main bridge to rotate along with the first spindle; a second limit, a proximity switch, a first lock, a second lock, the hydraulic system and the control system are mounted on the second bridge abutment. Before the bridge is opened, the first lock is unlocked first, the main bridge is then driven to rotate forwardly, the second limit limits the rotation of the bridge when the bridge is opened to 90 degrees, the proximity switches detect signals and shut down power, and the bridge is locked by the second lock. Before the bridge is closed, the second locked is unlocked first, the main bridge is then driven to rotate reversely to be in position, the first limit limits the bridge, the proximity switches detect signals and shut down power, and the bridge is locked by the first lock. The flat rotary type bascule bridge has the characteristics of safety and stability in the opening and closing processes of the bridge.

Description

technical field [0001] The invention relates to an opening bridge, which belongs to the field of bridges, in particular to a flat-rotating opening 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 existing horizontal-rotation opening bridge generally adopts the mode of floating horizontal-rotation opening bridge. This type of opening bridge is greatly affected by the water level, and the elevation of the bridge deck will change, which will have a great 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 bridge main body of the vertically rotating open bridge rotates around a fixed axis in the air, and uses hydraulic cylinders to shrink Or ...

AI Technical Summary

Problems solved by technology

The existing horizontal-rotation opening bridge generally adopts the method of floating horizontal-rotation opening bridge. This type of opening bridge is greatly affected by the water level, and the elevation of the bridge deck will change, which will have a great 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 bridge main body of the vertically rotating open bridge rotates around a fixed axis in the air, and uses hydraulic cylinders to shrink Or elongate to drive the opening and closing of the bridge. In the open state, the bridge hangs at a certain angle in the air to meet the requirements of the ship's navigation clearance. In bad weather, the opening of the bridge will be restricted; moreover, there is a common problem with the vertical lifting type and the vertical opening type opening bridge: when the bridge is open, the ship needs to pass under the opening bridge, which has certain safety hazards

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