FOLDING BRIDGE UNIT Russian patent published in 2021 - IPC E01D15/12 

FIELD: construction of bridges.

SUBSTANCE: invention relates to panel bridges. The folding unit of a bridge opens laterally on the lifting frame (1) of the platform (2) of the assembly and transport machine (3). After locking the joint units of the lower power bands (15) by turning and fixing the links (18) and disjointing the longitudinal hinges (7) by means of the lifting frame (1), the unit will rise to a vertical position (87 to 93°). The unit is then slightly lowered on the carriages (23) resulting in the fixing bracket releasing the upper end of the bottom plate of the carriageway (9) through the slot hole. The unit is then opened longitudinally by means of cables (37), (38) and a hoist (4) and mounted in the axis of the assembled bridge. During assembly of the unit on the bank of a narrow barrier, linings are laid in the support sections of the unit, sectional ramps, guys with lanyards, and anchors are used to ensure equipment passage.

EFFECT: folding unit of the bridge ensures acceleration of assembly thereof in the axis of the assembled bridge while simultaneously reducing labour consumption, excludes the possibility of uncontrolled longitudinal opening thereof and provides for autonomous use thereof as an independent bridge.

1 cl, 15 dwg