Longitudinal moving device for main beam of through type movable formwork

The utility model relates to the technical field of hydraulic engineering, and discloses a through type movable formwork girder longitudinal moving device which comprises a formwork supporting bracket, a longitudinal electric sliding rail, a propelling trolley and a pier column inserting block. A set of through type movable formwork main beam longitudinal moving mechanism is provided for use of a high-pier-column large-span aqueduct, formwork bodies on the two sides of a main beam can be flexibly closed and opened, opposite-pulling mechanisms of supporting brackets for supporting the two sides below the main beam are optimized, an existing screw rod corresponding structure is replaced with the hydraulic opposite-pulling mechanisms, and the hydraulic opposite-pulling mechanisms are optimized. While the opposite-pulling tightness between the supporting brackets is ensured, the time consumed by manually screwing the opposite-pulling screw rods is shortened, the construction stability and the construction efficie