Bridge supporting and adjusting device for bridge construction

The invention provides a bridge supporting and adjusting device for bridge construction, and belongs to the technical field of bridge construction.The bridge supporting and adjusting device for bridge construction comprises a movable bottom plate and a supporting outer cylinder, adjusting hydraulic telescopic rods are fixedly connected to the left side and the right side of the supporting outer cylinder correspondingly, and top blocks are fixedly connected to the top ends of the adjusting hydraulic telescopic rods; a concave tooth ejector rod is inserted into the supporting outer cylinder, and the top end of the concave tooth ejector rod is fixedly connected to the bottom of an ejector block. In the using process, the extension length of the concave tooth ejector rod can be adjusted by starting the adjusting hydraulic telescopic rod, then the height of the ejector block can be adjusted, through arrangement of a locking device, in the using process, descending of the concave tooth ejector rod can be controlled