Stupefied bearing structure of steel backing

The utility model discloses a stupefied bearing structure of steel backing, including a plurality of H -beams and double flute roof beam, H -beam and double flute roof beam fixed connection, it is provided with sliding block to slide on one of them double flute roof beam, it is provided with the draw -in groove to go back the interval on this double flute roof beam inner wall, the last fixing device that is provided with of sliding block, fixing device is including rotating the piece, carousel and locking piece, the last holding chamber that is formed with of sliding block, the carousel rotateto set up in the holding chamber, it is connected with the carousel on sliding block and through the square shaft to rotate a rotatable setting, the holding chamber is formed with the locking passageway to sliding block both sides extension, the locking piece slides and sets up in the locking passageway, be provided with the linkage piece between carousel and the locking piece, a linkage one endis articulated with the ca