Stably-installed support for cable bridge

The utility model discloses a stable installation support for a cable bridge, which comprises a bottom supporting plate and two side frames arranged at the top of the bottom supporting plate, one side surface of each side frame is provided with an inner pressing plate, the bottom surface of each inner pressing plate is provided with a pressing pad, the inside of each side frame is provided with an inner sliding groove, and each inner sliding groove is provided with an outer sliding groove. An inner sliding groove is formed in the side frame, an inner sliding block and an inner spring are arranged in the inner sliding groove, a first sliding groove is formed in the surface of one side of the side frame, and a first connecting block is arranged in the first sliding groove; through the arrangement of an inner pressing plate, a pressing pad, an inner sliding groove, an inner sliding block, an inner spring, a first connecting block, a U-shaped outer shifting block, a second connecting block and other structures, w