A unsettled operation platform for bridge installation

The utility model provides an unsettled operation platform for bridge installation, railing A is all established to the work platform both sides, joint support pole A between railing A and the work platform. Synchronous valve A is established to the work platform lower surface. Work platform links to each other with perpendicular cat ladder mechanism. Establish connecting rod A between support frame and the cat ladder. Otic placode A before the hydraulic cylinder is established to the support frame lower part, and otic placode A behind the hydraulic cylinder is established to work platform one end, establishes hydraulic cylinder A before the hydraulic cylinder behind otic placode A and the hydraulic cylinder between the otic placode A. The dull and stereotyped both sides face of walking links to each other with connecting rod B through bracing piece B respectively, and the walking crossbeam is connected with perpendicular cat ladder mechanism through round pin axle B. The otic placode is fixed on the crossbeam bottom surface of walking before the hydraulic cylinder B, and the otic placode is fixed at support frame top behind the hydraulic cylinder B, establishes hydraulic cylinder B before the hydraulic cylinder behind otic placode B and the hydraulic cylinder between the otic placode B. The electro -magnet is established to walking crossbeam one end. The utility model discloses the installation is dismantled simply, sparingly transports the space, provides the work platform of a safety for the installation of bridge.